Compare commits

..

100 Commits

Author SHA1 Message Date
Andrew Bonventre
20f58c6075 [release-branch.go1.9] go1.9.6
Change-Id: I00cd8ac03baa5961eb2b6206a4f407b5d89bcece
Reviewed-on: https://go-review.googlesource.com/110336
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-04-30 19:04:08 +00:00
Andrew Bonventre
3e0aad4265 [release-branch.go1.9] doc: document Go 1.9.6
Change-Id: I9699b22d3a308cda685aa684b32dcde99333df46
Reviewed-on: https://go-review.googlesource.com/110315
Reviewed-by: Filippo Valsorda <filippo@golang.org>
(cherry picked from commit 40685b230a012dd5a9ca471dbf21b65457c32147)
Reviewed-on: https://go-review.googlesource.com/110375
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-04-30 18:02:05 +00:00
Ian Lance Taylor
50f65726a9 [release-branch.go1.9] cmd/compile: permit go:cgo_import_dynamic anywhere
It's used on Solaris to import symbols from shared libraries, e.g., in
golang.org/x/sys/unix and golang.org/x/net/internal/socket.
We could use a different directive but that would require build tags
in all the places that use it.

Fixes golang/go#23939

Change-Id: I47fcf72a6d2862e304204705979c2056c2f78ec5
Reviewed-on: https://go-review.googlesource.com/94018
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit 41d3d153eb)
Reviewed-on: https://go-review.googlesource.com/110077
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-04-30 16:55:49 +00:00
Josh Bleecher Snyder
93cfaa058a [release-branch.go1.9] cmd/compile: fix evaluation of "" < s
Fixes #24934

Change-Id: Ifa79ab3dfe69297eeef85f7193cd5f85e5982bc5
Reviewed-on: https://go-review.googlesource.com/106655
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-on: https://go-review.googlesource.com/108943
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2018-04-27 20:52:20 +00:00
Andrew Bonventre
f69b0c627f [release-branch.go1.9] go1.9.5
Change-Id: If8542fb3e9064971fb0b3be8f910fbfd5061010e
Reviewed-on: https://go-review.googlesource.com/103167
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-03-29 06:06:28 +00:00
Ian Lance Taylor
ad22922d03 [release-branch.go1.9] cmd/go: add more C compiler/linker options to whitelist
Fixes #23937

Change-Id: Ie63d91355d1a724d0012d99d457d939deeeb8d3e
Reviewed-on: https://go-review.googlesource.com/102818
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Reviewed-on: https://go-review.googlesource.com/103156
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-03-29 06:06:14 +00:00
Ian Lance Taylor
c1bf152756 [release-branch.go1.9] cmd/go: permit pkg-config flags in any argument position
Fixes #23875

Change-Id: I503af71f44d11cd6b787fef100246b55735614a0
Reviewed-on: https://go-review.googlesource.com/94896
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/103155
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-03-29 06:06:08 +00:00
Ian Lance Taylor
51fd3d43da [release-branch.go1.9] cmd/go: add options to security whitelist
Also permit passing flags to pkg-config, as we used to.

Also change the error message to refer to https://golang.org/s/invalidflag.

Fixes #23749

Change-Id: I3fbeb4c346610e6fd55e8720e720b0a40e352ab5
Reviewed-on: https://go-review.googlesource.com/93836
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/103135
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-03-29 06:06:00 +00:00
Keith Randall
f5c8db9643 [release-branch.go1.9] cmd/compile: use unsigned loads for multi-element comparisons
When loading multiple elements of an array into a single register,
make sure we treat them as unsigned.  When treated as signed, the
upper bits might all be set, causing the shift-or combo to clobber
the values higher in the register.

Fixes #23719.

Change-Id: Ic87da03e9bd0fe2c60bb214b99f846e4e9446052
Reviewed-on: https://go-review.googlesource.com/92335
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ilya Tocar <ilya.tocar@intel.com>
Reviewed-on: https://go-review.googlesource.com/103115
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-03-29 06:05:52 +00:00
Andrew Bonventre
9c69ed5d09 [release-branch.go1.9] doc: update 1.9.5 release notes to include net/http/pprof
Change-Id: I7c0716711a2cadd347fdf242c792b109539f7355
Reviewed-on: https://go-review.googlesource.com/103163
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Reviewed-on: https://go-review.googlesource.com/103165
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-03-29 06:05:42 +00:00
Andrew Bonventre
954d811c77 [release-branch.go1.9] doc: update release notes for Go 1.9.5
Change-Id: Idf88d289bac9603d852a9d19eb4b764f8589f8d9
Reviewed-on: https://go-review.googlesource.com/103159
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Reviewed-on: https://go-review.googlesource.com/103161
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-03-29 06:05:32 +00:00
Andrew Bonventre
e3047e744f [release-branch.go1.9] doc: document Go 1.9.5
Change-Id: I8f12b188d2e13555e1d7634b9cc0319fc737cb1d
Reviewed-on: https://go-review.googlesource.com/103216
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/103220
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-03-29 06:04:30 +00:00
Andrew Bonventre
703bb6a712 [release-branch.go1.9] net/http/pprof: harden handler responses
A very small number of old browsers consider content as HTML
even when it is explicitly stated in the Content-Type header
that it is not. If content served is based on user-supplied
input, then an XSS is possible. Introduce three mitigations:

+ Don't reflect user input in error strings
+ Set a Content-Disposition header when requesting a resource
  that should never be displayed in a browser window
+ Set X-Content-Type-Options: nosniff on all responses

Change-Id: I81c9d6736e0439ebd1db99cd7fb701cc56d24805
Reviewed-on: https://go-review.googlesource.com/102318
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/103164
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-03-29 06:04:25 +00:00
Ian Lance Taylor
15474dce9d [release-branch.go1.9] cmd/go: restrict meta imports to valid schemes
Before this change, when using -insecure, we permitted any meta import
repo root as long as it contained "://". When not using -insecure, we
restrict meta import repo roots to be valid URLs. People may depend on
that somehow, so permit meta import repo roots to be invalid URLs, but
require them to have valid schemes per RFC 3986.

Fixes #23867

Change-Id: Iac666dfc75ac321bf8639dda5b0dba7c8840922d
Reviewed-on: https://go-review.googlesource.com/94603
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/102776
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-03-29 06:04:12 +00:00
Keith Randall
7467b00691 [release-branch.go1.9] cmd/compile: fix constant folding of right shifts on s390x
Repeat previous fix on amd64 for s390x.
Sub-word right shifts should sign extend before shifting.

Update #23812

Change-Id: I2d770190c7d8a22310b0dbd9facb3fb05afa362a
Reviewed-on: https://go-review.googlesource.com/94028
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/102777
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-03-29 06:04:07 +00:00
Keith Randall
ce68047f96 [release-branch.go1.9] cmd/compile: fix constant folding of right shifts
The sub-word shifts need to sign-extend before shifting, to avoid
bringing in data from higher in the argument.

Fixes #23812

Change-Id: I0a95a0b49c48f3b40b85765bb4a9bb492be0cd73
Reviewed-on: https://go-review.googlesource.com/93716
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-on: https://go-review.googlesource.com/102775
Run-TryBot: Andrew Bonventre <andybons@golang.org>
2018-03-29 06:03:59 +00:00
Russ Cox
6732fcc06d [release-branch.go1.9] go1.9.4
Change-Id: I2ab24e37b21d4b3275ffaeab3cb27d4e8e276e1e
Reviewed-on: https://team-review.git.corp.google.com/213171
Reviewed-by: Andrew Bonventre <andybons@google.com>
2018-02-07 15:34:31 +00:00
Russ Cox
135c5a056c [release-branch.go1.9] doc: document Go 1.9.4
Change-Id: Ia3e35328d50bbd08948b34e09a9e8bb4f9b07888
Reviewed-on: https://team-review.git.corp.google.com/213170
Reviewed-by: Andrew Bonventre <andybons@google.com>
2018-02-07 15:34:27 +00:00
Russ Cox
867fb18b6d [release-branch.go1.9] cmd/go: accept only limited compiler and linker flags in #cgo directives
Both gcc and clang accept an option -fplugin=code.so to load
a plugin from the ELF shared object file code.so.
Obviously that plugin can then do anything it wants
during the build. This is contrary to the goal of "go get"
never running untrusted code during the build.
(What happens if you choose to run the result of
the build is your responsibility.)

Disallow this behavior by only allowing a small set of
known command-line flags in #cgo CFLAGS directives
(and #cgo LDFLAGS, etc).

The new restrictions can be adjusted by the environment
variables CGO_CFLAGS_ALLOW, CGO_CFLAGS_DISALLOW,
and so on. See the documentation.

In addition to excluding cgo-defined flags, we also have to
make sure that when we pass file names on the command
line, they don't look like flags. So we now refuse to build
packages containing suspicious file names like -x.go.

A wrinkle in all this is that GNU binutils uniformly accept
@foo on the command line to mean "if the file foo exists,
then substitute its contents for @foo in the command line".
So we must also reject @x.go, flags and flag arguments
beginning with @, and so on.

Fixes #23673, CVE-2018-6574.

Change-Id: I59e7c1355155c335a5c5ae0d2cf8fa7aa313940a
Reviewed-on: https://team-review.git.corp.google.com/212507
Reviewed-by: Ian Lance Taylor <iant@google.com>
2018-02-07 14:46:58 +00:00
Andrew Bonventre
c03ee1985c [release-branch.go1.9] doc: document Go 1.8.6
Update golang/go#23515

Change-Id: Id334d8663bf4cbb68f224d1bba4c9ad3855f8aae
Reviewed-on: https://go-review.googlesource.com/89155
Reviewed-by: Andrew Gerrand <adg@golang.org>
(cherry picked from commit 6c27114ced)
Reviewed-on: https://go-review.googlesource.com/89176
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-01-23 03:34:42 +00:00
Andrew Bonventre
a563954b79 [release-branch.go1.9] go1.9.3
Change-Id: I9347a78c86dcc13cd5f6f000e788934cb1bda491
Reviewed-on: https://go-review.googlesource.com/89015
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-01-22 21:38:28 +00:00
Stanislav Afanasev
6ac64a0692 [release-branch.go1.9] doc/contrib.html: fix outdated link
Change-Id: I6d94a14a781a2fbeb90db35ae3490ce2ac5f8ed1
Reviewed-on: https://go-review.googlesource.com/83315
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit 2fb9fe48c6)
Reviewed-on: https://go-review.googlesource.com/89036
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-01-22 21:15:00 +00:00
Andrew Bonventre
f94c408f4b [release-branch.go1.9] doc: update 1.9.3 release date
Change-Id: I689ccfb8452a170629425dc97da503b28766c6f9
Reviewed-on: https://go-review.googlesource.com/89035
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit 7abbaddea4819515e1dad817cc1090e18f655b60)
Reviewed-on: https://go-review.googlesource.com/89055
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-01-22 21:12:25 +00:00
Andrew Bonventre
6452bf4a05 [release-branch.go1.9] doc: change anchor URLs from golang.org/dl/ to /dl/
When running locally, it will redirect properly to golang.org/dl/
(see https://github.com/golang/tools/blob/master/cmd/godoc/dl.go).

This is to support domains in prod other than golang.org.

Change-Id: I6d3051fcd7e06a86442324a64d781d8ad95c624f
Reviewed-on: https://go-review.googlesource.com/88679
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/88715
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-01-22 20:25:15 +00:00
Andrew Bonventre
5380990b84 [release-branch.go1.9] net/http: update bundled http2
Updates http2 to x/net/http2 git rev 44b7c21 for

  http2: Discard data reads on HEAD requests
  https://golang.org/cl/88655

Fixes golang/go#22376

Change-Id: I931d9065d7309bc6d3f978bfe8cc6a9f940ce9e9
Reviewed-on: https://go-review.googlesource.com/88676
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-01-22 20:25:14 +00:00
Keith Randall
edd3537817 [release-branch.go1.9] cmd/compile: fix mapassign_fast* routines for pointer keys
The signature of the mapassign_fast* routines need to distinguish
the pointerness of their key argument.  If the affected routines
suspend part way through, the object pointed to by the key might
get garbage collected because the key is typed as a uint{32,64}.

This is not a problem for mapaccess or mapdelete because the key
in those situations do not live beyond the call involved.  If the
object referenced by the key is garbage collected prematurely, the
code still works fine.  Even if that object is subsequently reallocated,
it can't be written to the map in time to affect the lookup/delete.

Fixes #22781

Change-Id: I0bbbc5e9883d5ce702faf4e655348be1191ee439
Reviewed-on: https://go-review.googlesource.com/79018
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>
Reviewed-on: https://go-review.googlesource.com/88635
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-01-22 20:25:13 +00:00
Brad Fitzpatrick
0a72be280e [release-branch.go1.9] net/url: reject invalid userinfo values when parsing URLs
Fixes #23392

Change-Id: I5822b082b14d886b9c3b5ad7beebb2c01a77851b
Reviewed-on: https://go-review.googlesource.com/87038
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/88535
Run-TryBot: Andrew Bonventre <andybons@golang.org>
2018-01-22 20:25:12 +00:00
Ian Lance Taylor
e36f34fa55 [release-branch.go1.9] runtime: call amd64 VDSO entry points on large stack
NOTE: This elides changes to src/runtime/sys_linux_386.s since that
requires another change (golang.org/cl/69390) which we don’t want
to backport.

If the Linux kernel was built with CONFIG_OPTIMIZE_INLINING=n and was
built with hardening options turned on, GCC will insert a stack probe
in the VDSO function that requires a full page of stack space.
The stack probe can corrupt memory if another thread is using it.
Avoid sporadic crashes by calling the VDSO on the g0 or gsignal stack.

While we're at it, align the stack as C code expects. We've been
getting away with a misaligned stack, but it's possible that the VDSO
code will change in the future to break that assumption.

Benchmarks show a 11% hit on time.Now, but it's only 6ns.

name                      old time/op  new time/op  delta
AfterFunc-12              1.66ms ± 0%  1.66ms ± 1%     ~     (p=0.905 n=9+10)
After-12                  1.90ms ± 6%  1.86ms ± 0%   -2.05%  (p=0.012 n=10+8)
Stop-12                    113µs ± 3%   115µs ± 2%   +1.60%  (p=0.017 n=9+10)
SimultaneousAfterFunc-12   145µs ± 1%   144µs ± 0%   -0.68%  (p=0.002 n=10+8)
StartStop-12              39.5µs ± 3%  40.4µs ± 5%   +2.19%  (p=0.023 n=10+10)
Reset-12                  10.2µs ± 0%  10.4µs ± 0%   +2.45%  (p=0.000 n=10+9)
Sleep-12                   190µs ± 1%   190µs ± 1%     ~     (p=0.971 n=10+10)
Ticker-12                 4.68ms ± 2%  4.64ms ± 2%   -0.83%  (p=0.043 n=9+10)
Now-12                    48.4ns ±11%  54.0ns ±11%  +11.42%  (p=0.017 n=10+10)
NowUnixNano-12            48.5ns ±13%  56.9ns ± 8%  +17.30%  (p=0.000 n=10+10)
Format-12                  489ns ±11%   504ns ± 6%     ~     (p=0.289 n=10+10)
FormatNow-12               436ns ±23%   480ns ±13%  +10.25%  (p=0.026 n=9+10)
MarshalJSON-12             656ns ±14%   587ns ±24%     ~     (p=0.063 n=10+10)
MarshalText-12             647ns ± 7%   638ns ± 9%     ~     (p=0.516 n=10+10)
Parse-12                   348ns ± 8%   328ns ± 9%   -5.66%  (p=0.030 n=10+10)
ParseDuration-12           136ns ± 9%   140ns ±11%     ~     (p=0.425 n=10+10)
Hour-12                   14.8ns ± 6%  15.6ns ±11%     ~     (p=0.085 n=10+10)
Second-12                 14.0ns ± 6%  14.3ns ±12%     ~     (p=0.443 n=10+10)
Year-12                   32.4ns ±11%  33.4ns ± 6%     ~     (p=0.492 n=10+10)
Day-12                    41.5ns ± 9%  42.3ns ±12%     ~     (p=0.239 n=10+10)

Fixes #20427

Change-Id: Ia395cbb863215f4499b8e7ef95f4b99f51090911
Reviewed-on: https://go-review.googlesource.com/76990
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-on: https://go-review.googlesource.com/88495
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-01-22 20:25:11 +00:00
Austin Clements
75c7c40d29 [release-branch.go1.9] runtime: use MAP_ANON in sigstack check
MAP_ANON is the deprecated but more portable spelling of
MAP_ANONYMOUS. Use MAP_ANON to un-break the Darwin 10.10 builder.

Updates #22930.

Change-Id: Iedd6232b94390b3b2a7423c45cdcb25c1a5b3323
Reviewed-on: https://go-review.googlesource.com/88316
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-01-22 20:25:10 +00:00
Austin Clements
f4870b7758 [release-branch.go1.9] runtime: restore the Go-allocated signal stack in unminit
Currently, when we minit on a thread that already has an alternate
signal stack (e.g., because the M was an extram being used for a cgo
callback, or to handle a signal on a C thread, or because the
platform's libc always allocates a signal stack like on Android), we
simply drop the Go-allocated gsignal stack on the floor.

This is a problem for Ms on the extram list because those Ms may later
be reused for a different thread that may not have its own alternate
signal stack. On tip, this manifests as a crash in sigaltstack because
we clear the gsignal stack bounds in unminit and later try to use
those cleared bounds when we re-minit that M. On 1.9 and earlier, we
didn't clear the bounds, so this manifests as running more than one
signal handler on the same signal stack, which could lead to arbitrary
memory corruption.

This CL fixes this problem by saving the Go-allocated gsignal stack in
a new field in the m struct when overwriting it with a system-provided
signal stack, and then restoring the original gsignal stack in
unminit.

This CL is designed to be easy to back-port to 1.9. It won't quite
cherry-pick cleanly, but it should be sufficient to simply ignore the
change in mexit (which didn't exist in 1.9).

Now that we always have a place to stash the original signal stack in
the m struct, there are some simplifications we can make to the signal
stack handling. We'll do those in a later CL.

Fixes #22930.

Change-Id: I55c5a6dd9d97532f131146afdef0b216e1433054
Reviewed-on: https://go-review.googlesource.com/88315
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-01-22 20:25:09 +00:00
Keith Randall
2308c9c95e [release-branch.go1.9] cmd/compile: fix decomposition of 1-element arrays
The offending rule could move the load to a different block,
which is always a bad idea.

Fixes #22683

Change-Id: I973c88389b2359f734924d9f45c3fb38e166691d
Reviewed-on: https://go-review.googlesource.com/77331
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2018-01-22 20:25:08 +00:00
Andrew Bonventre
f8a22093e2 [release-branch.go1.9] doc: document Go 1.9.3
Change-Id: Ic7a5d3118754b34ab0652fcef889259a03baebc3
Reviewed-on: https://go-review.googlesource.com/88536
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/88678
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-01-22 20:25:07 +00:00
Keith Randall
a94581d021 [release-branch.go1.9] cmd/compile: fix large load/store offsets on 386
Pointer arithemetic is done mod 2^32 on 386, so we can just
drop the high bits of any large constant offsets.

The bounds check will make sure wraparounds are never observed.

Fixes #21655

Change-Id: I68ae5bbea9f02c73968ea2b21ca017e5ecb89223
Reviewed-on: https://go-review.googlesource.com/82675
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-on: https://go-review.googlesource.com/88324
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-01-22 20:25:06 +00:00
kirk
f548fb287b [release-branch.go1.9] database/sql: fix transaction leak
When the user context which passed in (*DB)BeginTx is canceled or
timeout, the current implementation could cause db transaction leak
in some extreme scenario.

Goroutine 1:
        Call (*DB) BeginTx begins a transaction with a userContext.
        In (*DB)BeginTx, a new goroutine (*Tx)awaitDone
        which monitor context and rollback tx if needed will be created

Goroutine 2(awaitDone):
        block on tx.ctx.Done()

Goroutine 1:
        Execute some insert or update sqls on the database

Goroutine 1:
        Commit the transaction, (*Tx)Commit set
        the atomic variable tx.done to 1

Goroutine 3(maybe global timer):
        Cancel userContext which be passed in Tx

Goroutine 1:
        (*Tx)Commit checks tx.ctx.Done().
        Due to the context has been canceled, it will return
        context.Canceled or context.DeadlineExceeded error immediately
        and abort the real COMMIT operation of transaction

Goroutine 2:
        Release with tx.ctx.Done() signal, execute (*Tx)rollback.
        However the atomic variable tx.done is 1 currently,
        it will return ErrTxDone error immediately and
        abort the real ROLLBACK operation of transaction

Fixes #22976

Change-Id: I3bc23adf25db823861d91e33d3cca6189fb1171d
Reviewed-on: https://go-review.googlesource.com/81736
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
Reviewed-on: https://go-review.googlesource.com/88323
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-01-22 20:25:05 +00:00
Alberto Donizetti
0b25e97d03 [release-branch.go1.9] math/big: protect against aliasing in nat.divLarge
In nat.divLarge (having signature (z nat).divLarge(u, uIn, v nat)),
we check whether z aliases uIn or v, but aliasing is currently not
checked for the u parameter.

Unfortunately, z and u aliasing each other can in some cases cause
errors in the computation.

The q return parameter (which will hold the result's quotient), is
unconditionally initialized as

    q = z.make(m + 1)

When cap(z) ≥ m+1, z.make() will reuse z's backing array, causing q
and z to share the same backing array. If then z aliases u, setting q
during the quotient computation will then corrupt u, which at that
point already holds computation state.

To fix this, we add an alias(z, u) check at the beginning of the
function, taking care of aliasing the same way we already do for uIn
and v.

Fixes #22830

Change-Id: I3ab81120d5af6db7772a062bb1dfc011de91f7ad
Reviewed-on: https://go-review.googlesource.com/78995
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-on: https://go-review.googlesource.com/88322
Run-TryBot: Andrew Bonventre <andybons@golang.org>
2018-01-22 20:25:04 +00:00
Austin Clements
3618ac2ca5 [release-branch.go1.9] runtime: fix gctrace STW CPU time and CPU fraction
The CPU time reported in the gctrace for STW phases is simply
work.stwprocs times the wall-clock duration of these phases. However,
work.stwprocs is set to gcprocs(), which is wrong for multiple
reasons:

1. gcprocs is intended to limit the number of Ms used for mark
   termination based on how well the garbage collector actually
   scales, but the gctrace wants to report how much CPU time is being
   stolen from the application. During STW, that's *all* of the CPU,
   regardless of how many the garbage collector can actually use.

2. gcprocs assumes it's being called during STW, so it limits its
   result to sched.nmidle+1. However, we're not calling it during STW,
   so sched.nmidle is typically quite small, even if GOMAXPROCS is
   quite large.

Fix this by setting work.stwprocs to min(ncpu, GOMAXPROCS). This also
fixes the overall GC CPU fraction, which is based on the computed CPU
times.

Fixes #22725.

Change-Id: I64b5ce87e28dbec6870aa068ce7aecdd28c058d1
Reviewed-on: https://go-review.googlesource.com/77710
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
Reviewed-on: https://go-review.googlesource.com/88321
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2018-01-22 20:25:02 +00:00
Keith Randall
1cca09a8ed [release-branch.go1.9] cmd/compile: fix runtime.KeepAlive
KeepAlive needs to introduce a use of the spill of the
value it is keeping alive.  Without that, we don't guarantee
that the spill dominates the KeepAlive.

This bug was probably introduced with the code to move spills
down to the dominator of the restores, instead of always spilling
just after the value itself (CL 34822).

Fixes #22458.

Change-Id: I94955a21960448ffdacc4df775fe1213967b1d4c
Reviewed-on: https://go-review.googlesource.com/74210
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-on: https://go-review.googlesource.com/88318
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-01-22 20:25:01 +00:00
Keith Randall
5c08eef870 [release-branch.go1.9] cmd/compile: make sure not to use SP as an index register
...because that's an illegal addressing mode.

I double-checked handling of this code, and 387 is the only
place where this check is missing.

Fixes #22429

Change-Id: I2284fe729ea86251c6af2f04076ddf7a5e66367c
Reviewed-on: https://go-review.googlesource.com/73551
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/88317
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-01-22 20:24:55 +00:00
Andrew Bonventre
aae9998d41 doc: hide content blocked by GFW when served in CN
Change-Id: Ia3d0fa0517d96f0672d3c5ce7e7b7bb8bd0ce093
Reviewed-on: https://go-review.googlesource.com/60070
Reviewed-by: Chris Broadfoot <cbro@golang.org>
(cherry picked from commit 98603e7af6)
Reviewed-on: https://go-review.googlesource.com/88735
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-01-20 05:07:43 +00:00
Russ Cox
5476967b1a [release-branch.go1.9] doc: document Go 1.8.5
Change-Id: I9241e6acb65c337b961eed9cdeaf4c041b6326a3
Reviewed-on: https://go-review.googlesource.com/73390
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
Reviewed-on: https://go-review.googlesource.com/73590
2017-10-25 23:37:37 +00:00
Russ Cox
2ea7d3461b [release-branch.go1.9] go1.9.2
Change-Id: Idb72e9f562887680e0b287649a4ae1325d7e3eb5
Reviewed-on: https://go-review.googlesource.com/71271
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-10-25 20:24:05 +00:00
Russ Cox
d93cb46280 [release-branch.go1.9] runtime: use simple, more robust fastrandn
CL 36932 (speed up fastrandn) made it faster but introduced
bad interference with some properties of fastrand itself, making
fastrandn not very random in certain ways. In particular, certain
selects are demonstrably unfair.

For Go 1.10 the new faster fastrandn has induced a new fastrand,
which in turn has caused other follow-on bugs that are still being
discovered and fixed.

For Go 1.9.2, just go back to the barely slower % implementation
that we used in Go 1.8 and earlier. This should restore fairness in
select and any other problems caused by the clever fastrandn.

The test in this CL is copied from CL 62530.

Fixes #22253.

Change-Id: Ibcf948a7bce981452e05c90dbdac122043f6f813
Reviewed-on: https://go-review.googlesource.com/70991
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2017-10-25 20:24:03 +00:00
Keith Randall
78952c06c5 [release-branch.go1.9] cmd/compile: fix sign-extension merging rules
If we have

  y = <int16> (MOVBQSX x)
  z = <int32> (MOVWQSX y)

We used to use this rewrite rule:

(MOVWQSX x:(MOVBQSX _)) -> x

But that resulted in replacing z with a value whose type
is only int16.  Then if z is spilled and restored, it gets
zero extended instead of sign extended.

Instead use the rule

(MOVWQSX (MOVBQSX x)) -> (MOVBQSX x)

The result is has the correct type, so it can be spilled
and restored correctly.  It might mean that a few more extension
ops might not be eliminated, but that's the price for correctness.

Fixes #21963

Change-Id: I6ec82c3d2dbe43cc1fee6fb2bd6b3a72fca3af00
Reviewed-on: https://go-review.googlesource.com/65290
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/70986
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2017-10-25 20:24:00 +00:00
Keith Randall
79996e4a1d [release-branch.go1.9] cmd/compile: avoid generating large offsets
The assembler barfs on large offsets. Make sure that all the
instructions that need to have their offsets in an int32
  1) check on any rule that computes offsets for such instructions
  2) change their aux fields so the check builder checks it.

The assembler also silently misassembled offsets between 1<<31
and 1<<32. Add a check in the assembler to barf on those as well.

Fixes #21655

Change-Id: Iebf24bf10f9f37b3ea819ceb7d588251c0f46d7d
Reviewed-on: https://go-review.googlesource.com/59630
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-on: https://go-review.googlesource.com/70981
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2017-10-25 20:23:57 +00:00
Michael Matloob
f36b12657c [release-branch.go1.9] runtime: in cpuProfile.addExtra, set p.lostExtra to 0 after flush
After the number of lost extra events are written to the the cpuprof log,
the number of lost extra events should be set to zero, or else, the next
time time addExtra is logged, lostExtra will be overcounted. This change
resets lostExtra after its value is written to the log.

Fixes #21836

Change-Id: I8a6ac9c61e579e7a5ca7bdb0f3463f8ae8b9f864
Reviewed-on: https://go-review.googlesource.com/63270
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/70974
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:23:55 +00:00
Hiroshi Ioka
dffc9319f1 [release-branch.go1.9] cmd/cgo: support large unsigned macro again
The approach of https://golang.org/cl/43476 turned out incorrect.
The problem is that the sniff introduced by the CL only work for simple
expression. And when it fails it fallback to uint64, not int64, which
breaks backward compatibility.
In this CL, we use DWARF for guessing kind instead. That should be more
reliable than previous approach. And importanly, it fallbacks to int64 even
if it fails to guess kind.

Fixes #21708

Change-Id: I39a18cb2efbe4faa9becdcf53d5ac68dba180d47
Reviewed-on: https://go-review.googlesource.com/60510
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/60810
Reviewed-by: Hiroshi Ioka <hirochachacha@gmail.com>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
Reviewed-on: https://go-review.googlesource.com/70970
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:23:52 +00:00
Hiroshi Ioka
33ce1682c7 [release-branch.go1.9] cmd/cgo: avoid using common names for sniffing
Current code uses names like "x" and "s" which can conflict with user's
code easily. Use cryptographic names.

Fixes #21668

Change-Id: Ib6d3d6327aa5b92d95c71503d42e3a79d96c8e16
Reviewed-on: https://go-review.googlesource.com/59710
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/59730
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Hiroshi Ioka <hirochachacha@gmail.com>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
Reviewed-on: https://go-review.googlesource.com/70849
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:23:49 +00:00
Ian Lance Taylor
f69668e1d0 [release-branch.go1.9] os: skip TestPipeThreads as flaky for 1.9
Updates #21559

Change-Id: I90fa8b4ef97c4251440270491ac4c833d76ee872
Reviewed-on: https://go-review.googlesource.com/70771
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-10-25 20:23:47 +00:00
Russ Cox
9be38a15e4 [release-branch.go1.9] runtime: avoid monotonic time zero on systems with low-res timers
Otherwise low-res timers cause problems at call sites that expect to
be able to use 0 as meaning "no time set" and therefore expect that
nanotime never returns 0 itself. For example, sched.lastpoll == 0
means no last poll.

Fixes #22394.

Change-Id: Iea28acfddfff6f46bc90f041ec173e0fea591285
Reviewed-on: https://go-review.googlesource.com/73410
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-on: https://go-review.googlesource.com/73491
TryBot-Result: Russ Cox <rsc@golang.org>
2017-10-25 20:23:44 +00:00
Russ Cox
8bb333a9c0 [release-branch.go1.9] doc: document Go 1.9.2
Change-Id: I7d63e747e798d588bdcf2b79b6ecd21fce7bbc9c
Reviewed-on: https://go-review.googlesource.com/73391
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
Reviewed-on: https://go-review.googlesource.com/73490
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-10-25 20:23:41 +00:00
Russ Cox
0758d2b9da [release-branch.go1.9] cmd/go: clean up x.exe properly in TestImportMain
More generally I'm concerned about these tests using
$GOROOT/src/cmd/go as scratch space, especially
combined wtih tg.parallel() - it's easy to believe some other
test might inadvertently also try to write x.exe about the
same time. This CL only solves the "didn't clean up x.exe"
problem and leaves for another day the "probably shouldn't
write to cmd/go at all" problem.

Fixes #22266.

Change-Id: I651534d70e2d360138e0373fb4a316081872550b
Reviewed-on: https://go-review.googlesource.com/71410
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/71530
2017-10-25 20:23:39 +00:00
Matthew Dempsky
d487b15a61 [release-branch.go1.9] cmd/compile: omit ICE diagnostics after normal error messages
After we detect errors, the AST is in a precarious state and more
likely to trip useless ICE failures. Instead let the user fix any
existing errors and see if the ICE persists.  This makes Fatalf more
consistent with how panics are handled by hidePanic.

While here, also fix detection for release versions: release version
strings begin with "go" ("go1.8", "go1.9.1", etc), not "release".

Fixes #22252.

Change-Id: I1c400af62fb49dd979b96e1bf0fb295a81c8b336
Reviewed-on: https://go-review.googlesource.com/70850
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/70985
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-10-25 20:23:36 +00:00
Daniel Theophanes
fd17253587 [release-branch.go1.9] database/sql: prevent race in driver by locking dc in Next
Database drivers should be called from a single goroutine to ease
driver's design. If a driver chooses to handle context
cancels internally it may do so.

The sql package violated this agreement when calling Next or
NextResultSet. It was possible for a concurrent rollback
triggered from a context cancel to call a Tx.Rollback (which
takes a driver connection lock) while a Rows.Next is in progress
(which does not tack the driver connection lock).

The current internal design of the sql package is each call takes
roughly two locks: a closemu lock which prevents an disposing of
internal resources (assigning nil or removing from lists)
and a driver connection lock that prevents calling driver code from
multiple goroutines.

Fixes #21117

Change-Id: Ie340dc752a503089c27f57ffd43e191534829360
Reviewed-on: https://go-review.googlesource.com/65731
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/71510
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
2017-10-25 20:23:34 +00:00
Alex Brainman
7e7cb30475 [release-branch.go1.9] internal/poll: only call SetFileCompletionNotificationModes for sockets
CL 36799 made SetFileCompletionNotificationModes to be called for
file handles. I don't think it is correct. Revert that change.

Fixes #22024
Fixes #22207

Change-Id: I26260e8a727131cffbf60958d79eca2457495554
Reviewed-on: https://go-review.googlesource.com/69871
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/70990
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-10-25 20:23:32 +00:00
Alex Brainman
f259aed082 [release-branch.go1.9] internal/poll: do not call SetFileCompletionNotificationModes if it is broken
Current code assumes that SetFileCompletionNotificationModes
is safe to call even if we know that it is not safe to use
FILE_SKIP_COMPLETION_PORT_ON_SUCCESS flag. It appears (see issue #22149),
SetFileCompletionNotificationModes crashes when we call it without
FILE_SKIP_COMPLETION_PORT_ON_SUCCESS flag.

Do not call SetFileCompletionNotificationModes in that situation.
We are allowed to do that, because SetFileCompletionNotificationModes
is just an optimisation.

Fixes #22149

Change-Id: I0ad3aff4eabd8c27739417a62c286b1819ae166a
Reviewed-on: https://go-review.googlesource.com/69870
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/70989
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-10-25 20:23:29 +00:00
Ian Lance Taylor
39d4bb9c0f [release-branch.go1.9] cmd/go: correct directory used in checkNestedVCS test
This error was not used when using git because nested git is permitted.
Add test using Mercurial, so that at least we have a test, even though
the test is not run by default.

Fixes #22157
Fixes #22201

Change-Id: If521f3c09b0754e00e56fa3cd0364764a57a43ad
Reviewed-on: https://go-review.googlesource.com/69670
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/70984
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-10-25 20:23:27 +00:00
Adam Langley
bfc22319aa [release-branch.go1.9] crypto/x509: reject intermediates with unknown critical extensions.
In https://golang.org/cl/9390 I messed up and put the critical extension
test in the wrong function. Thus it only triggered for leaf certificates
and not for intermediates or roots.

In practice, this is not expected to have a security impact in the web
PKI.

Change-Id: I4f2464ef2fb71b5865389901f293062ba1327702
Reviewed-on: https://go-review.googlesource.com/69294
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/70983
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-10-25 20:23:24 +00:00
Jeff
a1e34abfb3 [release-branch.go1.9] net/smtp: NewClient: set tls field to true when already using a TLS connection
Change-Id: I34008f56c191df0edcaafc20d569bbc6184f89fc
Reviewed-on: https://go-review.googlesource.com/68470
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/70982
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:23:22 +00:00
Author Name
7dadd8d517 [release-branch.go1.9] net: increase expected time to dial a closed port on all Darwin ports
All current darwin architectures seem to take at least 100ms to dial a closed port,
and that was making the all.bash script fail.

Fixes #22062

Change-Id: Ib79c4b7a5db2373c95ce5d993cdcbee55cc0667f
Reviewed-on: https://go-review.googlesource.com/67350
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/70988
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-10-25 20:23:19 +00:00
Keith Randall
d80889341c [release-branch.go1.9] cmd/compile: fix merge rules for panic calls
Use entire inlining call stack to decide whether two panic calls
can be merged. We used to merge panic calls when only the leaf
line numbers matched, but that leads to places higher up the call
stack being merged incorrectly.

Fixes #22083

Change-Id: Ia41400a80de4b6ecf3e5089abce0c42b65e9b38a
Reviewed-on: https://go-review.googlesource.com/67632
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-on: https://go-review.googlesource.com/70980
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2017-10-25 20:23:16 +00:00
Elias Naur
87b3a27839 [release-branch.go1.9] net: bump TestDialerDualStackFDLeak timeout on iOS
On an iPhone 6 running iOS 11, the TestDialerDualStackFDLeak test
started failing with dial durations just above the limit:

FAIL: TestDialerDualStackFDLeak (0.21s)

	dial_test.go:90: got 101.154ms; want <= 95ms

Bump the timeout on iOS.

For the iOS builder.

Change-Id: Id42b471e7cf7d0c84f6e83ed04b395fa1a2d449d
Reviewed-on: https://go-review.googlesource.com/66491
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/70987
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:23:14 +00:00
Austin Clements
ebfcdef901 [release-branch.go1.9] runtime: make runtime.GC() trigger GC even if GOGC=off
Currently, the priority of checks in (gcTrigger).test() puts the
gcpercent<0 test above gcTriggerCycle, which is used for runtime.GC().
This is an unintentional change from 1.8 and before, where
runtime.GC() triggered a GC even if GOGC=off.

Fix this by rearranging the priority so the gcTriggerCycle test
executes even if gcpercent < 0.

Fixes #22023.

Change-Id: I109328d7b643b6824eb9d79061a9e775f0149575
Reviewed-on: https://go-review.googlesource.com/65994
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
Reviewed-on: https://go-review.googlesource.com/70979
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2017-10-25 20:23:11 +00:00
Lynn Boger
0ab99b396d [release-branch.go1.9] cmd/compile: fix regression in PPC64.rules move zero
When a MOVDstorezero (8 bytes) is used the offset field
in the instruction must be a multiple of 4. This situation
had been corrected in the rules for other types of stores
but not for the zero case.

This also removes some of the special MOVDstorezero cases since
they can be handled by the general LowerZero case.

Updates made to the ssa test for lowering zero moves to
include cases where the target is not aligned to at least 4.

Fixes #21947

Change-Id: I7cceceb1be4898c77cd3b5e78b58dce0a7e28edd
Reviewed-on: https://go-review.googlesource.com/64970
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-on: https://go-review.googlesource.com/70978
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:23:08 +00:00
Alex Brainman
8d4279c111 [release-branch.go1.9] internal/poll: be explicit when using runtime netpoller
internal/poll package assumes that only net sockets use runtime
netpoller on windows. We get memory corruption if other file
handles are passed into runtime poller. Make FD.Init receive
and use useNetpoller argument, so FD.Init caller is explicit
about using runtime netpoller.

Fixes #21172

Change-Id: I60e2bfedf9dda9b341eb7a3e5221035db29f5739
Reviewed-on: https://go-review.googlesource.com/65810
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/71132
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-10-25 20:23:05 +00:00
Matthew Dempsky
1ded8334f7 [release-branch.go1.9] cmd/compile/internal/syntax: fix source buffer refilling
The previous code seems to have an off-by-1 in it somewhere, the
consequence being that we didn't properly preserve all of the old
buffer contents that we intended to.

After spending a while looking at the existing window-shifting logic,
I wasn't able to understand exactly how it was supposed to work or
where the issue was, so I rewrote it to be (at least IMO) more
obviously correct.

Fixes #21938.

Change-Id: I1ed7bbc1e1751a52ab5f7cf0411ae289586dc345
Reviewed-on: https://go-review.googlesource.com/64830
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-on: https://go-review.googlesource.com/70977
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-10-25 20:23:03 +00:00
Cherry Zhang
ff8289f879 [release-branch.go1.9] reflect: fix pointer past-the-end in Call with zero-sized return value
If a function with nonzero frame but zero-sized return value is
Call'd, we may write a past-the-end pointer in preparing the
return Values. Fix by return the zero value for zero-sized
return value.

Fixes #21717.

Change-Id: I5351cd86d898467170a888b4c3fc9392f0e7aa3b
Reviewed-on: https://go-review.googlesource.com/60811
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-on: https://go-review.googlesource.com/70971
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-10-25 20:23:00 +00:00
hagen1778
bd34e74134 [release-branch.go1.9] log: fix data race on log.Output
There was unprotected access to Logger.flag in log.Output which
could lead to data race in cases when log.SetFlags called simultaneously.
For example, "hot" switching on/off debug-mode for Logger by log.SetFlags
while application still writing logs.

Fixes #21935

Change-Id: I36be25f23cad44cde62ed1af28a30d276400e1b8
Reviewed-on: https://go-review.googlesource.com/64710
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/70976
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:22:58 +00:00
David Crawshaw
0b55d8dbfc [release-branch.go1.9] cmd/compile: replace GOROOT in //line directives
The compiler replaces any path of the form /path/to/goroot/src/net/port.go
with GOROOT/src/net/port.go so that the same object file is
produced if the GOROOT is moved. It was skipping this transformation
for any absolute path into the GOROOT that came from //line directives,
such as those generated by cmd/cgo.

Fixes #21373
Fixes #21720
Fixes #21825

Change-Id: I2784c701b4391cfb92e23efbcb091a84957d61dd
Reviewed-on: https://go-review.googlesource.com/63693
Run-TryBot: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-on: https://go-review.googlesource.com/70975
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-10-25 20:22:55 +00:00
zhongtao.chen
5c48811aec [release-branch.go1.9] cmd/compile: limit the number of simultaneously opened files to avoid EMFILE/ENFILE errors
If the Go packages with enough source files,it will cause EMFILE/ENFILE error,
Fix this by limiting the number of simultaneously opened files.

Fixes #21621

Change-Id: I8555d79242d2f90771e37e073b7540fc7194a64a
Reviewed-on: https://go-review.googlesource.com/57751
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/63752
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:22:53 +00:00
Bryan C. Mills
8c7fa95ad3 [release-branch.go1.9] expvar: make (*Map).Init clear existing keys
fixes #21619

Change-Id: I5bb513dfc8cac875b06a262eec40b5863ae23a4c
Reviewed-on: https://go-review.googlesource.com/62370
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/70973
Run-TryBot: Russ Cox <rsc@golang.org>
2017-10-25 20:22:50 +00:00
Matthew Dempsky
ccd5abc105 [release-branch.go1.9] cmd/compile: simplify "missing function body" error message
Fixes #21747.

Change-Id: I6a68370be3b7510ce364ddd1e41a1d767ce3a67f
Reviewed-on: https://go-review.googlesource.com/61311
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-on: https://go-review.googlesource.com/70972
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-10-25 20:22:47 +00:00
Dmitri Shuralyov
2e4358c960 [release-branch.go1.9] time: fix documentation of Round, Truncate behavior for d <= 0
Saying that they return t unchanged is misleading, because they return
a modified t, stripped of any monotonic clock reading, as of Go 1.9.

Fixes #21485.

Change-Id: Icddf8813aed3d687fcefcd2fe542829438be6a0a
Reviewed-on: https://go-review.googlesource.com/56690
Reviewed-by: Avelino <t@avelino.xxx>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/70846
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Russ Cox <rsc@golang.org>
2017-10-25 20:22:45 +00:00
Austin Clements
c6388d381e [release-branch.go1.9] runtime: capture runtimeInitTime after nanotime is initialized
CL 36428 changed the way nanotime works so on Darwin and Windows it
now depends on runtime.startNano, which is computed at runtime.init
time. Unfortunately, the `runtimeInitTime = nanotime()` initialization
happened *before* runtime.init, so on these platforms runtimeInitTime
is set incorrectly. The one (and only) consequence of this is that the
start time printed in gctrace lines is bogus:

gc 1 18446653480.186s 0%: 0.092+0.47+0.038 ms clock, 0.37+0.15/0.81/1.8+0.15 ms cpu, 4->4->1 MB, 5 MB goal, 8 P

To fix this, this commit moves the runtimeInitTime initialization to
shortly after runtime.init, at which point nanotime is safe to use.

This also requires changing the condition in newproc1 that currently
uses runtimeInitTime != 0 simply to detect whether or not the main M
has started. Since runtimeInitTime could genuinely be 0 now, this
introduces a separate flag to newproc1.

Fixes #21554.

Change-Id: Id874a4b912d3fa3d22f58d01b31ffb3548266d3b
Reviewed-on: https://go-review.googlesource.com/58690
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/70848
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2017-10-25 20:22:42 +00:00
Martin Möhrmann
724638c9d8 [release-branch.go1.9] crypto/x509: skip TestSystemRoots
golang.org/cl/36941 enabled loading of all trusted certs on darwin
for the non-cgo execSecurityRoots.

The corresponding cgo version golang.org/cl/36942 for systemRootsPool
has not been merged yet.

This tests fails reliably on some darwin systems:
--- FAIL: TestSystemRoots (1.28s)
        root_darwin_test.go:31:     cgo sys roots: 353.552363ms
        root_darwin_test.go:32: non-cgo sys roots: 921.85297ms
        root_darwin_test.go:44: got 169 roots
        root_darwin_test.go:44: got 455 roots
        root_darwin_test.go:73: insufficient overlap between cgo and non-cgo roots; want at least 227, have 168
FAIL
FAIL    crypto/x509     2.445s

Updates #16532
Updates #21416

Change-Id: I52c2c847651fb3621fdb6ab858ebe8e28894c201
Reviewed-on: https://go-review.googlesource.com/57830
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Reviewed-on: https://go-review.googlesource.com/70847
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>
2017-10-25 20:22:39 +00:00
Alex Brainman
ed3b0d63b7 [release-branch.go1.9] internal/poll: add tests for Windows file and serial ports
I also wanted to test net sockets, but I do not know how to
access their file handles. So I did not implement socket tests.

Updates #21172

Change-Id: I5062c0e65a817571d755397d60762c175f9791ce
Reviewed-on: https://go-review.googlesource.com/53530
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/71131
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-10-25 20:22:36 +00:00
Chris Broadfoot
93322a5b3d [release-branch.go1.9] doc: add missing "Minor revisions" header for 1.9
Change-Id: Ib042e472e62f48a6afaba1762beaf102a9b99cf5
Reviewed-on: https://go-review.googlesource.com/68290
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/68291
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-10-04 20:22:52 +00:00
Chris Broadfoot
7f40c1214d [release-branch.go1.9] go1.9.1
Change-Id: I711b38738a7f6fade42a2821908234940f3cf280
Reviewed-on: https://go-review.googlesource.com/68233
Reviewed-by: Russ Cox <rsc@golang.org>
2017-10-04 18:39:31 +00:00
Chris Broadfoot
598433b17a [release-branch.go1.9] doc: document go1.9.1 and go1.8.4
Change-Id: Ib42fabc6829b6033373c0378713733f88e73e73d
Reviewed-on: https://go-review.googlesource.com/68230
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/68231
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-10-04 18:36:02 +00:00
Tom Bergan
815cad3ed0 [release-branch.go1.9] doc/1.9: add mention of net/http.LocalAddrContextKey
Fixes #21603

Reviewed-on: https://go-review.googlesource.com/59530
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/59670
Reviewed-by: Chris Broadfoot <cbro@golang.org>
Reviewed-by: Tom Bergan <tombergan@google.com>

Change-Id: Ie9732d57948593dc0306a4a649664eedb3de370c
Reviewed-on: https://go-review.googlesource.com/68232
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-10-04 18:35:59 +00:00
Russ Cox
1900d34a10 [release-branch.go1.9] net/smtp: fix PlainAuth to refuse to send passwords to non-TLS servers
PlainAuth originally refused to send passwords to non-TLS servers
and was documented as such.

In 2013, issue #5184 was filed objecting to the TLS requirement,
despite the fact that it is spelled out clearly in RFC 4954.
The only possibly legitimate use case raised was using PLAIN auth
for connections to localhost, and the suggested fix was to let the
server decide: if it advertises that PLAIN auth is OK, believe it.
That approach was adopted in CL 8279043 and released in Go 1.1.

Unfortunately, this is exactly wrong. The whole point of the TLS
requirement is to make sure not to send the password to the wrong
server or to a man-in-the-middle. Instead of implementing this rule,
CL 8279043 blindly trusts the server, so that if a man-in-the-middle
says "it's OK, you can send me your password," PlainAuth does.
And the documentation was not updated to reflect any of this.

This CL restores the original TLS check, as required by RFC 4954
and as promised in the documentation for PlainAuth.
It then carves out a documented exception for connections made
to localhost (defined as "localhost", "127.0.0.1", or "::1").

Cherry-pick of CL 68170.

Change-Id: I1d3729bbd33aa2f11a03f4c000e6bb473164957b
Reviewed-on: https://go-review.googlesource.com/68210
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-10-04 18:19:11 +00:00
Russ Cox
a39bcecea6 [release-branch.go1.9] cmd/go: reject update of VCS inside VCS
Cherry-pick of CL 68110.

Change-Id: Iae84c6404ab5eeb6950faa2364f97a017c67c506
Reviewed-on: https://go-review.googlesource.com/68022
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-10-04 18:15:57 +00:00
Russ Cox
d9e64910af [release-branch.go1.9] runtime: deflake TestPeriodicGC
It was only waiting 0.1 seconds for the two GCs it wanted.
Let it wait 1 second.

Change-Id: Ib3cdc8127cbf95694a9f173643c02529a85063af
Reviewed-on: https://go-review.googlesource.com/68118
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-10-04 16:47:06 +00:00
Chris Broadfoot
c8aec4095e [release-branch.go1.9] go1.9
Change-Id: I0899ec0150f2a051b7572879b446a8548f742ae0
Reviewed-on: https://go-review.googlesource.com/58731
Run-TryBot: Chris Broadfoot <cbro@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-08-24 20:52:14 +00:00
Chris Broadfoot
b8c9ef9f09 [release-branch.go1.9] doc: add go1.9 to golang.org/project
Pre-emptive. Go 1.9 is expected to be released in August.

Change-Id: I0f58c012c4110bf490022dc2c1d69c0988d73bfa
Reviewed-on: https://go-review.googlesource.com/52351
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/58730
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-08-24 19:57:08 +00:00
Chris Broadfoot
136f4a6b2a [release-branch.go1.9] doc: document go1.9
Change-Id: I97075f24319a4b96cbeb9e3ff2e7b2056ff59e32
Reviewed-on: https://go-review.googlesource.com/58651
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/58710
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-08-24 19:55:44 +00:00
Ryuji IWATA
867be4c60c [release-branch.go1.9] doc/go1.9: fix typo in Moved GOROOT
Change-Id: I71bfff6a3462e6dfd7a65ef76ec56644bae37c34
Reviewed-on: https://go-review.googlesource.com/57272
Reviewed-by: Avelino <t@avelino.xxx>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/58650
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-08-24 19:54:21 +00:00
Josh Bleecher Snyder
9a4e7942ea [release-branch.go1.9] cmd/compile: remove gc.Sysfunc calls from 387 backend
[This is a cherry-pick of CL 54090 to the 1.9 release branch.]

gc.Sysfunc must not be called concurrently.
We set up runtime routines used by the backend
prior to doing any backend compilation.
I missed the 387 ones; fix that.

Sysfunc should have been unexported during 1.9.
I will rectify that in a subsequent CL.

Fixes #21352

Change-Id: I485bb1867b46d8e5cf64bc820b8963576dc16174
Reviewed-on: https://go-review.googlesource.com/55970
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2017-08-22 18:24:54 +00:00
Ian Lance Taylor
ff38035a62 [release-branch.go1.9] doc/go1.9: fix typo in crypto/x509 of "Minor changes to the library".
Backport of https://golang.org/cl/57390 to 1.9 release branch.

Change-Id: Ieea5a048732db7ee5dc5cf13f06e11ca4f5313cc
Reviewed-on: https://go-review.googlesource.com/57450
Reviewed-by: Keith Randall <khr@golang.org>
2017-08-22 18:21:23 +00:00
Austin Clements
42046e8989 [release-branch.go1.9] runtime: fix false positive race in profile label reading
Because profile labels are copied from the goroutine into the tag
buffer by the signal handler, there's a carefully-crafted set of race
detector annotations to create the necessary happens-before edges
between setting a goroutine's profile label and retrieving it from the
profile tag buffer.

Given the constraints of the signal handler, we have to approximate
the true synchronization behavior. Currently, that approximation is
too weak.

Ideally, runtime_setProfLabel would perform a store-release on
&getg().labels and copying each label into the profile would perform a
load-acquire on &getg().labels. This would create the necessary
happens-before edges through each individual g.labels object.

Since we can't do this in the signal handler, we instead synchronize
on a "labelSync" global. The problem occurs with the following
sequence:

1. Goroutine 1 calls setProfLabel, which does a store-release on
   labelSync.

2. Goroutine 2 calls setProfLabel, which does a store-release on
   labelSync.

3. Goroutine 3 reads the profile, which does a load-acquire on
   labelSync.

The problem is that the load-acquire only synchronizes with the *most
recent* store-release to labelSync, and the two store-releases don't
synchronize with each other. So, once goroutine 3 touches the label
set by goroutine 1, we report a race.

The solution is to use racereleasemerge. This is like a
read-modify-write, rather than just a store-release. Each RMW of
labelSync in runtime_setProfLabel synchronizes with the previous RMW
of labelSync, and this ultimately carries forward to the load-acquire,
so it synchronizes with *all* setProfLabel operations, not just the
most recent.

Change-Id: Iab58329b156122002fff12cfe64fbeacb31c9613
Reviewed-on: https://go-review.googlesource.com/57190
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-08-18 23:07:14 +00:00
Ian Lance Taylor
fbf7e1f295 [release-branch.go1.9] testing: don't fail all tests after racy test failure
The code was adding race.Errors to t.raceErrors before checking
Failed, but Failed was using t.raceErrors+race.Errors. We don't want
to change Failed, since that would affect tests themselves, so modify
the harness to not unnecessarily change t.raceErrors.

Updates #19851
Fixes #21338

Change-Id: I483f27c68c340928f1cbdef160abc0a5716efb5d
Reviewed-on: https://go-review.googlesource.com/57151
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-08-18 21:10:46 +00:00
Ian Lance Taylor
21312a4b5e [release-branch.go1.9] cmd/dist: update deps.go for current dependencies
Fixes #21456

Change-Id: I7841d816e8c1c581e61db4f24124f99f5184fead
Reviewed-on: https://go-review.googlesource.com/57170
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-08-18 21:10:29 +00:00
Cherry Zhang
5927854f7d [release-branch.go1.9] cmd/compile: add rules handling unsigned div/mod by constant 1<<63
Cherry-pick CL 56890.

Normally 64-bit div/mod is turned into runtime calls on 32-bit
arch, but the front end leaves power-of-two constant division
and hopes the SSA backend turns into a shift or AND. The SSA rule is

(Mod64u <t> n (Const64 [c])) && isPowerOfTwo(c) -> (And64 n (Const64 <t> [c-1]))

But isPowerOfTwo returns true only for positive int64, which leaves
out 1<<63 unhandled. Add a special case for 1<<63.

Fixes #21517.

Change-Id: Ic91f86fd5e035a8bb64b937c15cb1c38fec917d6
Reviewed-on: https://go-review.googlesource.com/57070
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-08-18 18:43:00 +00:00
pvoicu
65717b2dca [release-branch.go1.9] runtime: fix usleep by correctly setting nanoseconds parameter for pselect6
Fixes #21518

Change-Id: Idd67e3f0410d0ce991b34dcc0c8f15e0d5c529c9
Reviewed-on: https://go-review.googlesource.com/56891
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Petrica Voicu <pvoicu@paypal.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-08-18 14:14:39 +00:00
Chris Broadfoot
048c9cfaac [release-branch.go1.9] go1.9rc2
Change-Id: If95cec0ec7e32cdb450818c4c55e2d03b847ab65
Reviewed-on: https://go-review.googlesource.com/53630
Reviewed-by: Austin Clements <austin@google.com>
2017-08-07 20:29:01 +00:00
Chris Broadfoot
cff0de3da3 [release-branch.go1.9] all: merge master into release-branch.go1.9
579120323f runtime: mapassign_* should use typedmemmove to update keys
380525598c all: remove some manual hyphenation
f096b5b340 runtime: mark activeModules nosplit/nowritebarrier
3e3da54633 math/bits: fix example for OnesCount64
9b1e7cf2ac math/bits: add examples for OnesCount functions
b01db023b1 misc/cgo/testsanitizers: also skip tsan11/tsan12 when using GCC
a279b53a18 reflect: document how DeepEqual handles cycles
909f409a8d doc: mention handling of moved GOROOT in 1.9 release notes
58ad0176ca doc: use better wording to explain type-aware completion
92dac21d29 doc: replace paid with commercial
9bb98e02de doc/1.9: add CL 43712, ReverseProxy of HTTP/2 trailers to the release notes.
78d74fc2cd doc: clarify that Gogland is for paid IntelliJ platform IDEs
5495047223 doc/1.9: fix broken html link in CL 53030/53210
890e0e862f doc: fix bad link in go1.9 release notes
be596f049a doc/1.9: fix stray html in CL 53030
0173631d53 encoding/binary: add examples for varint functions
ac0ccf3cd2 doc/1.9: add CL 36696 for crypto/x509 to the release notes
cc402c2c4d doc: hide blog content for golang.google.cn
f396fa4285 internal/poll: don't add non-sockets to runtime poller
664cd26c89 cmd/vet: don't exit with failure on type checking error
a8730cd93a doc: hide video and share if being served from CN
b63db76c4a testsanitizers: check that tsan program runs, skip tsan10 on gcc
193eda7291 time: skip ZoneAbbr test in timezones with no abbreviation
6f08c935a9 cmd/go: show examples with empty output in go test -list
f20944de78 cmd/compile: set/unset base register for better assembly print
623e2c4603 runtime: map bitmap and spans during heap initialization
780249eed4 runtime: fall back to small mmaps if we fail to grow reservation
31b2c4cc25 .github: add .md extension to SUPPORT file
ac29f30dbb plugin: mention that there are known bugs with plugins
45a4609c0a cmd/dist: skip moved GOROOT on Go's Windows builders when not sharding tests
e157fac02d test: add README
835dfef939 runtime/pprof: prevent a deadlock that SIGPROF might create on mips{,le}
df91b8044d doc: list editor options by name, not plugin name
3d9475c04b doc: cleanup editor page
b9661a14ea doc: add Atom to editor guide
ee392ac10c cmd/compile: consider exported flag in namedata

Change-Id: I3a48493e8c05d97cb3b61635503ef0ccd646e5cb
2017-08-07 10:28:35 -07:00
Austin Clements
196492a299 [release-branch.go1.9] runtime: map bitmap and spans during heap initialization
We lazily map the bitmap and spans areas as the heap grows. However,
right now we're very slightly too lazy. Specifically, the following
can happen on 32-bit:

1. mallocinit fails to allocate any heap arena, so
   arena_used == arena_alloc == arena_end == bitmap.

2. There's less than 256MB between the end of the bitmap mapping and
   the next mapping.

3. On the first allocation, mheap.sysAlloc sees that there's not
   enough room in [arena_alloc, arena_end) because there's no room at
   all. It gets a 256MB mapping from somewhere *lower* in the address
   space than arena_used and sets arena_alloc and arena_end to this
   hole.

4. Since the new arena_alloc is lower than arena_used, mheap.sysAlloc
   doesn't bother to call mheap.setArenaUsed, so we still don't have a
   bitmap mapping or a spans array mapping.

5. mheap.grow, which called mheap.sysAlloc, attempts to fill in the
   spans array and crashes.

Fix this by mapping the metadata regions for the initial arena_used
when the heap is initialized, rather than trying to wait for an
allocation. This maintains the intended invariant that the structures
are always mapped for [arena_start, arena_used).

Fixes #21044.

Cherry-pick of CL 51714. Fixes #21234.

Change-Id: I4422375a6e234b9f979d22135fc63ae3395946b0
Reviewed-on: https://go-review.googlesource.com/52191
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-07-31 17:46:03 +00:00
Austin Clements
1a6d87d4bf [release-branch.go1.9] runtime: fall back to small mmaps if we fail to grow reservation
Right now, if it's possible to grow the arena reservation but
mheap.sysAlloc fails to get 256MB more of memory, it simply fails.
However, on 32-bit we have a fallback path that uses much smaller
mmaps that could take in this situation, but fail to.

This commit fixes mheap.sysAlloc to use a common failure path in case
it can't grow the reservation. On 32-bit, this path includes the
fallback.

Ideally, mheap.sysAlloc would attempt smaller reservation growths
first, but taking the fallback path is a simple change for Go 1.9.

Updates #21044 (fixes one of two issues).

Cherry-pick of CL 51713. Updates #21234.

Change-Id: I1e0035ffba986c3551479d5742809e43da5e7c73
Reviewed-on: https://go-review.googlesource.com/52190
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-07-31 17:45:59 +00:00
Brad Fitzpatrick
7320506bc5 [release-branch.go1.9] cmd/dist: skip moved GOROOT on Go's Windows builders when not sharding tests
Change-Id: I0bcae339624e7d61037d9ea0885b7bd07491bbb6
Reviewed-on: https://go-review.googlesource.com/51430
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit 4833e920c1d7f6b23458e6ff3c73951fcf754219)
Reviewed-on: https://go-review.googlesource.com/51450
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-07-27 05:56:03 +00:00
Chris Broadfoot
65c6c88a94 [release-branch.go1.9] go1.9rc1
Change-Id: I6251fc128990f9494a0b037cabb24ada5eabb6b5
Reviewed-on: https://go-review.googlesource.com/50951
Run-TryBot: Chris Broadfoot <cbro@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-07-24 19:35:04 +00:00
Ian Lance Taylor
fbc9b49790 [release-branch.go1.9] cmd/compile: consider exported flag in namedata
It is possible to have an unexported name with a nil package,
for an embedded field whose type is a pointer to an unexported type.
We must encode that fact in the type..namedata symbol name,
to avoid incorrectly merging an unexported name with an exported name.

Fixes #21120

Change-Id: I2e3879d77fa15c05ad92e0bf8e55f74082db5111
Reviewed-on: https://go-review.googlesource.com/50710
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-on: https://go-review.googlesource.com/50970
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-07-24 18:12:06 +00:00
7308 changed files with 481849 additions and 1093236 deletions

14
.gitattributes vendored
View File

@@ -1,16 +1,10 @@
# Treat all files in the Go repo as binary, with no git magic updating
# line endings. This produces predictable results in different environments.
#
# Windows users contributing to Go will need to use a modern version
# of git and editors capable of LF line endings.
#
# Windows .bat files are known to have multiple bugs when run with LF
# endings, and so they are checked in with CRLF endings, with a test
# in test/winbatch.go to catch problems. (See golang.org/issue/37791.)
# line endings. Windows users contributing to Go will need to use a
# modern version of git and editors capable of LF line endings.
#
# We'll prevent accidental CRLF line endings from entering the repo
# via the git-codereview gofmt checks and tests.
# via the git-review gofmt checks.
#
# See golang.org/issue/9281.
# See golang.org/issue/9281
* -text

View File

@@ -1,3 +0,0 @@
# Code of Conduct
Please read the [Go Community Code of Conduct](https://golang.org/conduct).

View File

@@ -1,38 +1,21 @@
<!--
Please answer these questions before submitting your issue. Thanks!
For questions please use one of our forums: https://github.com/golang/go/wiki/Questions
-->
### What version of Go are you using (`go version`)?
<pre>
$ go version
</pre>
### Does this issue reproduce with the latest release?
### What operating system and processor architecture are you using (`go env`)?
<details><summary><code>go env</code> Output</summary><br><pre>
$ go env
</pre></details>
### What did you do?
<!--
If possible, provide a recipe for reproducing the error.
A complete runnable program is good.
A link on play.golang.org is best.
-->
### What did you expect to see?
### What did you see instead?

View File

@@ -1,25 +1,7 @@
This PR will be imported into Gerrit with the title and first
comment (this text) used to generate the subject and body of
the Gerrit change.
Please do not send pull requests to the golang/* repositories.
**Please ensure you adhere to every item in this list.**
We do, however, take contributions gladly.
More info can be found at https://github.com/golang/go/wiki/CommitMessage
See https://golang.org/doc/contribute.html
+ The PR title is formatted as follows: `net/http: frob the quux before blarfing`
+ The package name goes before the colon
+ The part after the colon uses the verb tense + phrase that completes the blank in,
"This change modifies Go to ___________"
+ Lowercase verb after the colon
+ No trailing period
+ Keep the title as short as possible. ideally under 76 characters or shorter
+ No Markdown
+ The first PR comment (this one) is wrapped at 76 characters, unless it's
really needed (ASCII art, table, or long link)
+ If there is a corresponding issue, add either `Fixes #1234` or `Updates #1234`
(the latter if this is not a complete fix) to this comment
+ If referring to a repo other than `golang/go` you can use the
`owner/repo#issue_number` syntax: `Fixes golang/tools#1234`
+ We do not use Signed-off-by lines in Go. Please don't add them.
Our Gerrit server & GitHub bots enforce CLA compliance instead.
+ Delete these instructions once you have read and applied them
Thanks!

2
.github/SUPPORT.md vendored
View File

@@ -9,6 +9,6 @@ For asking questions, see:
* [Gophers Slack](https://gophers.slack.com), use the [invite app](https://invite.slack.golangbridge.org/) for access
* [Stack Overflow](https://stackoverflow.com/questions/tagged/go) with questions tagged "go"
* [Stack Overflow](http://stackoverflow.com/questions/tagged/go) with questions tagged "go"
* **IRC** channel #go-nuts on Freenode

6
.gitignore vendored
View File

@@ -31,7 +31,6 @@ _testmain.go
/pkg/
/src/*.*/
/src/cmd/cgo/zdefaultcc.go
/src/cmd/dist/dist
/src/cmd/go/internal/cfg/zdefaultcc.go
/src/cmd/go/internal/cfg/zosarch.go
/src/cmd/internal/objabi/zbootstrap.go
@@ -44,8 +43,3 @@ _testmain.go
/test/pass.out
/test/run.out
/test/times.out
# This file includes artifacts of Go build that should not be checked in.
# For files created by specific development environment (e.g. editor),
# use alternative ways to exclude files from git.
# For example, set up .git/info/exclude or use a global .gitignore.

396
AUTHORS

File diff suppressed because it is too large Load Diff

View File

@@ -30,6 +30,11 @@ For change proposals, see [Proposing Changes To Go](https://github.com/golang/pr
Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html) before sending patches.
**We do not accept GitHub pull requests**
(we use [an instance](https://go-review.googlesource.com/) of the
[Gerrit](https://www.gerritcodereview.com/) code review system instead).
Also, please do not post patches on the issue tracker.
Unless otherwise noted, the Go source files are distributed under
the BSD-style license found in the LICENSE file.

File diff suppressed because it is too large Load Diff

View File

@@ -19,26 +19,27 @@ BSD-style license found in the LICENSE file.
Official binary distributions are available at https://golang.org/dl/.
After downloading a binary release, visit https://golang.org/doc/install
or load [doc/install.html](./doc/install.html) in your web browser for installation
or load doc/install.html in your web browser for installation
instructions.
#### Install From Source
If a binary distribution is not available for your combination of
operating system and architecture, visit
https://golang.org/doc/install/source or load [doc/install-source.html](./doc/install-source.html)
https://golang.org/doc/install/source or load doc/install-source.html
in your web browser for source installation instructions.
### Contributing
Go is the work of thousands of contributors. We appreciate your help!
Go is the work of hundreds of contributors. We appreciate your help!
To contribute, please read the contribution guidelines:
https://golang.org/doc/contribute.html
Note that the Go project uses the issue tracker for bug reports and
proposals only. See https://golang.org/wiki/Questions for a list of
places to ask questions about the Go language.
Note that the Go project does not use GitHub pull requests, and that
we use the issue tracker for bug reports and proposals only. See
https://golang.org/wiki/Questions for a list of places to ask
questions about the Go language.
[rf]: https://reneefrench.blogspot.com/
[cc3-by]: https://creativecommons.org/licenses/by/3.0/

View File

@@ -1,13 +0,0 @@
# Security Policy
## Supported Versions
We support the past two Go releases (for example, Go 1.12.x and Go 1.13.x).
See https://golang.org/wiki/Go-Release-Cycle and in particular the
[Release Maintenance](https://github.com/golang/go/wiki/Go-Release-Cycle#release-maintenance)
part of that page.
## Reporting a Vulnerability
See https://golang.org/security for how to report a vulnerability.

1
VERSION Normal file
View File

@@ -0,0 +1 @@
go1.9.6

View File

@@ -11,3 +11,4 @@ compatibility.
next.txt is the only file intended to be mutated. It's a list of
features that may be added to the next version. It only affects
warning output from the go api tool.

View File

@@ -1,13 +1,12 @@
pkg encoding/json, method (*RawMessage) MarshalJSON() ([]uint8, error)
pkg math/big, const MaxBase = 36
pkg math/big, type Word uintptr
pkg net, func ListenUnixgram(string, *UnixAddr) (*UDPConn, error)
pkg os, const ModeType = 2399141888
pkg os, const ModeType = 2399666176
pkg os (linux-arm), const O_SYNC = 4096
pkg os (linux-arm-cgo), const O_SYNC = 4096
pkg os (linux-arm), const O_SYNC = 1052672
pkg os (linux-arm-cgo), const O_SYNC = 1052672
pkg syscall (darwin-386), const ImplementsGetwd = false
pkg syscall (darwin-386), func Fchflags(string, int) error
pkg syscall (darwin-386-cgo), const ImplementsGetwd = false
pkg syscall (darwin-386-cgo), func Fchflags(string, int) error
pkg syscall (darwin-amd64), const ImplementsGetwd = false
pkg syscall (darwin-amd64), func Fchflags(string, int) error
pkg syscall (darwin-amd64-cgo), const ImplementsGetwd = false
@@ -15,30 +14,25 @@ pkg syscall (darwin-amd64-cgo), func Fchflags(string, int) error
pkg syscall (freebsd-386), const AF_MAX = 38
pkg syscall (freebsd-386), const DLT_MATCHING_MAX = 242
pkg syscall (freebsd-386), const ELAST = 94
pkg syscall (freebsd-386), const ImplementsGetwd = false
pkg syscall (freebsd-386), const O_CLOEXEC = 0
pkg syscall (freebsd-386), func Fchflags(string, int) error
pkg syscall (freebsd-386-cgo), const AF_MAX = 38
pkg syscall (freebsd-386-cgo), const DLT_MATCHING_MAX = 242
pkg syscall (freebsd-386-cgo), const ELAST = 94
pkg syscall (freebsd-386-cgo), const ImplementsGetwd = false
pkg syscall (freebsd-386-cgo), const O_CLOEXEC = 0
pkg syscall (freebsd-amd64), const AF_MAX = 38
pkg syscall (freebsd-amd64), const DLT_MATCHING_MAX = 242
pkg syscall (freebsd-amd64), const ELAST = 94
pkg syscall (freebsd-amd64), const ImplementsGetwd = false
pkg syscall (freebsd-amd64), const O_CLOEXEC = 0
pkg syscall (freebsd-amd64), func Fchflags(string, int) error
pkg syscall (freebsd-amd64-cgo), const AF_MAX = 38
pkg syscall (freebsd-amd64-cgo), const DLT_MATCHING_MAX = 242
pkg syscall (freebsd-amd64-cgo), const ELAST = 94
pkg syscall (freebsd-amd64-cgo), const ImplementsGetwd = false
pkg syscall (freebsd-amd64-cgo), const O_CLOEXEC = 0
pkg syscall (freebsd-arm), const AF_MAX = 38
pkg syscall (freebsd-arm), const BIOCGRTIMEOUT = 1074545262
pkg syscall (freebsd-arm), const BIOCSRTIMEOUT = 2148287085
pkg syscall (freebsd-arm), const ELAST = 94
pkg syscall (freebsd-arm), const ImplementsGetwd = false
pkg syscall (freebsd-arm), const O_CLOEXEC = 0
pkg syscall (freebsd-arm), const SIOCAIFADDR = 2151967019
pkg syscall (freebsd-arm), const SIOCGIFSTATUS = 3274991931
@@ -70,7 +64,6 @@ pkg syscall (freebsd-arm-cgo), const AF_MAX = 38
pkg syscall (freebsd-arm-cgo), const BIOCGRTIMEOUT = 1074545262
pkg syscall (freebsd-arm-cgo), const BIOCSRTIMEOUT = 2148287085
pkg syscall (freebsd-arm-cgo), const ELAST = 94
pkg syscall (freebsd-arm-cgo), const ImplementsGetwd = false
pkg syscall (freebsd-arm-cgo), const O_CLOEXEC = 0
pkg syscall (freebsd-arm-cgo), const SIOCAIFADDR = 2151967019
pkg syscall (freebsd-arm-cgo), const SIOCGIFSTATUS = 3274991931
@@ -104,12 +97,6 @@ pkg syscall (linux-amd64), type Cmsghdr struct, X__cmsg_data [0]uint8
pkg syscall (linux-amd64-cgo), type Cmsghdr struct, X__cmsg_data [0]uint8
pkg syscall (linux-arm), type Cmsghdr struct, X__cmsg_data [0]uint8
pkg syscall (linux-arm-cgo), type Cmsghdr struct, X__cmsg_data [0]uint8
pkg syscall (netbsd-386), const ImplementsGetwd = false
pkg syscall (netbsd-386-cgo), const ImplementsGetwd = false
pkg syscall (netbsd-amd64), const ImplementsGetwd = false
pkg syscall (netbsd-amd64-cgo), const ImplementsGetwd = false
pkg syscall (netbsd-arm), const ImplementsGetwd = false
pkg syscall (netbsd-arm-cgo), const ImplementsGetwd = false
pkg syscall (netbsd-arm), const SizeofIfData = 132
pkg syscall (netbsd-arm), func Fchflags(string, int) error
pkg syscall (netbsd-arm), type IfMsghdr struct, Pad_cgo_1 [4]uint8
@@ -118,7 +105,6 @@ pkg syscall (netbsd-arm-cgo), func Fchflags(string, int) error
pkg syscall (netbsd-arm-cgo), type IfMsghdr struct, Pad_cgo_1 [4]uint8
pkg syscall (openbsd-386), const BIOCGRTIMEOUT = 1074283118
pkg syscall (openbsd-386), const BIOCSRTIMEOUT = 2148024941
pkg syscall (openbsd-386), const ImplementsGetwd = false
pkg syscall (openbsd-386), const RTF_FMASK = 63496
pkg syscall (openbsd-386), const RTM_VERSION = 4
pkg syscall (openbsd-386), const SIOCBRDGDADDR = 2150132039
@@ -171,7 +157,6 @@ pkg syscall (openbsd-386), type Timespec struct, Sec int32
pkg syscall (openbsd-386), type Timeval struct, Sec int32
pkg syscall (openbsd-386-cgo), const BIOCGRTIMEOUT = 1074283118
pkg syscall (openbsd-386-cgo), const BIOCSRTIMEOUT = 2148024941
pkg syscall (openbsd-386-cgo), const ImplementsGetwd = false
pkg syscall (openbsd-386-cgo), const RTF_FMASK = 63496
pkg syscall (openbsd-386-cgo), const RTM_VERSION = 4
pkg syscall (openbsd-386-cgo), const SIOCBRDGDADDR = 2150132039
@@ -234,7 +219,6 @@ pkg syscall (openbsd-amd64), const EFER_NXE = 2048
pkg syscall (openbsd-amd64), const EFER_NXE ideal-int
pkg syscall (openbsd-amd64), const EFER_SCE = 1
pkg syscall (openbsd-amd64), const EFER_SCE ideal-int
pkg syscall (openbsd-amd64), const ImplementsGetwd = false
pkg syscall (openbsd-amd64), const PMC5_PIPELINE_FLUSH = 21
pkg syscall (openbsd-amd64), const PMC5_PIPELINE_FLUSH ideal-int
pkg syscall (openbsd-amd64), const RTF_FMASK = 63496
@@ -297,7 +281,6 @@ pkg syscall (openbsd-amd64-cgo), const EFER_NXE = 2048
pkg syscall (openbsd-amd64-cgo), const EFER_NXE ideal-int
pkg syscall (openbsd-amd64-cgo), const EFER_SCE = 1
pkg syscall (openbsd-amd64-cgo), const EFER_SCE ideal-int
pkg syscall (openbsd-amd64-cgo), const ImplementsGetwd = false
pkg syscall (openbsd-amd64-cgo), const PMC5_PIPELINE_FLUSH = 21
pkg syscall (openbsd-amd64-cgo), const PMC5_PIPELINE_FLUSH ideal-int
pkg syscall (openbsd-amd64-cgo), const RTF_FMASK = 63496
@@ -360,100 +343,3 @@ pkg syscall (openbsd-386), const SYS_KILL = 37
pkg syscall (openbsd-386-cgo), const SYS_KILL = 37
pkg syscall (openbsd-amd64), const SYS_KILL = 37
pkg syscall (openbsd-amd64-cgo), const SYS_KILL = 37
pkg unicode, const Version = "9.0.0"
pkg syscall (windows-386), const TOKEN_ALL_ACCESS = 983295
pkg syscall (windows-386), type AddrinfoW struct, Addr uintptr
pkg syscall (windows-386), type CertChainPolicyPara struct, ExtraPolicyPara uintptr
pkg syscall (windows-386), type CertChainPolicyStatus struct, ExtraPolicyStatus uintptr
pkg syscall (windows-386), type CertContext struct, CertInfo uintptr
pkg syscall (windows-386), type CertRevocationInfo struct, CrlInfo uintptr
pkg syscall (windows-386), type CertRevocationInfo struct, OidSpecificInfo uintptr
pkg syscall (windows-386), type CertSimpleChain struct, TrustListInfo uintptr
pkg syscall (windows-386), type RawSockaddrAny struct, Pad [96]int8
pkg syscall (windows-amd64), const TOKEN_ALL_ACCESS = 983295
pkg syscall (windows-amd64), type AddrinfoW struct, Addr uintptr
pkg syscall (windows-amd64), type CertChainPolicyPara struct, ExtraPolicyPara uintptr
pkg syscall (windows-amd64), type CertChainPolicyStatus struct, ExtraPolicyStatus uintptr
pkg syscall (windows-amd64), type CertContext struct, CertInfo uintptr
pkg syscall (windows-amd64), type CertRevocationInfo struct, CrlInfo uintptr
pkg syscall (windows-amd64), type CertRevocationInfo struct, OidSpecificInfo uintptr
pkg syscall (windows-amd64), type CertSimpleChain struct, TrustListInfo uintptr
pkg syscall (windows-amd64), type RawSockaddrAny struct, Pad [96]int8
pkg syscall (freebsd-386), func Mknod(string, uint32, int) error
pkg syscall (freebsd-386), type Dirent struct, Fileno uint32
pkg syscall (freebsd-386), type Dirent struct, Namlen uint8
pkg syscall (freebsd-386), type Stat_t struct, Blksize uint32
pkg syscall (freebsd-386), type Stat_t struct, Dev uint32
pkg syscall (freebsd-386), type Stat_t struct, Gen uint32
pkg syscall (freebsd-386), type Stat_t struct, Ino uint32
pkg syscall (freebsd-386), type Stat_t struct, Lspare int32
pkg syscall (freebsd-386), type Stat_t struct, Nlink uint16
pkg syscall (freebsd-386), type Stat_t struct, Pad_cgo_0 [8]uint8
pkg syscall (freebsd-386), type Stat_t struct, Rdev uint32
pkg syscall (freebsd-386), type Statfs_t struct, Mntfromname [88]int8
pkg syscall (freebsd-386), type Statfs_t struct, Mntonname [88]int8
pkg syscall (freebsd-386-cgo), func Mknod(string, uint32, int) error
pkg syscall (freebsd-386-cgo), type Dirent struct, Fileno uint32
pkg syscall (freebsd-386-cgo), type Dirent struct, Namlen uint8
pkg syscall (freebsd-386-cgo), type Stat_t struct, Blksize uint32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Dev uint32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Gen uint32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Ino uint32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Lspare int32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Nlink uint16
pkg syscall (freebsd-386-cgo), type Stat_t struct, Pad_cgo_0 [8]uint8
pkg syscall (freebsd-386-cgo), type Stat_t struct, Rdev uint32
pkg syscall (freebsd-386-cgo), type Statfs_t struct, Mntfromname [88]int8
pkg syscall (freebsd-386-cgo), type Statfs_t struct, Mntonname [88]int8
pkg syscall (freebsd-amd64), func Mknod(string, uint32, int) error
pkg syscall (freebsd-amd64), type Dirent struct, Fileno uint32
pkg syscall (freebsd-amd64), type Dirent struct, Namlen uint8
pkg syscall (freebsd-amd64), type Stat_t struct, Blksize uint32
pkg syscall (freebsd-amd64), type Stat_t struct, Dev uint32
pkg syscall (freebsd-amd64), type Stat_t struct, Gen uint32
pkg syscall (freebsd-amd64), type Stat_t struct, Ino uint32
pkg syscall (freebsd-amd64), type Stat_t struct, Lspare int32
pkg syscall (freebsd-amd64), type Stat_t struct, Nlink uint16
pkg syscall (freebsd-amd64), type Stat_t struct, Rdev uint32
pkg syscall (freebsd-amd64), type Statfs_t struct, Mntfromname [88]int8
pkg syscall (freebsd-amd64), type Statfs_t struct, Mntonname [88]int8
pkg syscall (freebsd-amd64-cgo), func Mknod(string, uint32, int) error
pkg syscall (freebsd-amd64-cgo), type Dirent struct, Fileno uint32
pkg syscall (freebsd-amd64-cgo), type Dirent struct, Namlen uint8
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Blksize uint32
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Dev uint32
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Gen uint32
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Ino uint32
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Lspare int32
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Nlink uint16
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Rdev uint32
pkg syscall (freebsd-amd64-cgo), type Statfs_t struct, Mntfromname [88]int8
pkg syscall (freebsd-amd64-cgo), type Statfs_t struct, Mntonname [88]int8
pkg syscall (freebsd-arm), func Mknod(string, uint32, int) error
pkg syscall (freebsd-arm), type Dirent struct, Fileno uint32
pkg syscall (freebsd-arm), type Dirent struct, Namlen uint8
pkg syscall (freebsd-arm), type Stat_t struct, Blksize uint32
pkg syscall (freebsd-arm), type Stat_t struct, Dev uint32
pkg syscall (freebsd-arm), type Stat_t struct, Gen uint32
pkg syscall (freebsd-arm), type Stat_t struct, Ino uint32
pkg syscall (freebsd-arm), type Stat_t struct, Lspare int32
pkg syscall (freebsd-arm), type Stat_t struct, Nlink uint16
pkg syscall (freebsd-arm), type Stat_t struct, Rdev uint32
pkg syscall (freebsd-arm), type Statfs_t struct, Mntfromname [88]int8
pkg syscall (freebsd-arm), type Statfs_t struct, Mntonname [88]int8
pkg syscall (freebsd-arm-cgo), func Mknod(string, uint32, int) error
pkg syscall (freebsd-arm-cgo), type Dirent struct, Fileno uint32
pkg syscall (freebsd-arm-cgo), type Dirent struct, Namlen uint8
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Blksize uint32
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Dev uint32
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Gen uint32
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Ino uint32
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Lspare int32
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Nlink uint16
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Rdev uint32
pkg syscall (freebsd-arm-cgo), type Statfs_t struct, Mntfromname [88]int8
pkg syscall (freebsd-arm-cgo), type Statfs_t struct, Mntonname [88]int8
pkg text/scanner, const GoTokens = 1012
pkg unicode, const Version = "10.0.0"
pkg unicode, const Version = "11.0.0"
pkg unicode, const Version = "12.0.0"

View File

@@ -1,627 +0,0 @@
pkg archive/tar, const FormatGNU = 8
pkg archive/tar, const FormatGNU Format
pkg archive/tar, const FormatPAX = 4
pkg archive/tar, const FormatPAX Format
pkg archive/tar, const FormatUSTAR = 2
pkg archive/tar, const FormatUSTAR Format
pkg archive/tar, const FormatUnknown = 0
pkg archive/tar, const FormatUnknown Format
pkg archive/tar, method (Format) String() string
pkg archive/tar, type Format int
pkg archive/tar, type Header struct, Format Format
pkg archive/tar, type Header struct, PAXRecords map[string]string
pkg archive/zip, method (*Writer) SetComment(string) error
pkg archive/zip, type FileHeader struct, Modified time.Time
pkg archive/zip, type FileHeader struct, NonUTF8 bool
pkg bufio, method (*Reader) Size() int
pkg bufio, method (*Writer) Size() int
pkg crypto/tls, const ECDSAWithSHA1 = 515
pkg crypto/tls, const ECDSAWithSHA1 SignatureScheme
pkg crypto/x509, const CANotAuthorizedForExtKeyUsage = 9
pkg crypto/x509, const CANotAuthorizedForExtKeyUsage InvalidReason
pkg crypto/x509, const ExtKeyUsageMicrosoftCommercialCodeSigning = 12
pkg crypto/x509, const ExtKeyUsageMicrosoftCommercialCodeSigning ExtKeyUsage
pkg crypto/x509, const ExtKeyUsageMicrosoftKernelCodeSigning = 13
pkg crypto/x509, const ExtKeyUsageMicrosoftKernelCodeSigning ExtKeyUsage
pkg crypto/x509, const NameConstraintsWithoutSANs = 6
pkg crypto/x509, const NameConstraintsWithoutSANs InvalidReason
pkg crypto/x509, const TooManyConstraints = 8
pkg crypto/x509, const TooManyConstraints InvalidReason
pkg crypto/x509, const UnconstrainedName = 7
pkg crypto/x509, const UnconstrainedName InvalidReason
pkg crypto/x509, func MarshalPKCS1PublicKey(*rsa.PublicKey) []uint8
pkg crypto/x509, func MarshalPKCS8PrivateKey(interface{}) ([]uint8, error)
pkg crypto/x509, func ParsePKCS1PublicKey([]uint8) (*rsa.PublicKey, error)
pkg crypto/x509, method (PublicKeyAlgorithm) String() string
pkg crypto/x509, type Certificate struct, ExcludedEmailAddresses []string
pkg crypto/x509, type Certificate struct, ExcludedIPRanges []*net.IPNet
pkg crypto/x509, type Certificate struct, ExcludedURIDomains []string
pkg crypto/x509, type Certificate struct, PermittedEmailAddresses []string
pkg crypto/x509, type Certificate struct, PermittedIPRanges []*net.IPNet
pkg crypto/x509, type Certificate struct, PermittedURIDomains []string
pkg crypto/x509, type Certificate struct, URIs []*url.URL
pkg crypto/x509, type CertificateInvalidError struct, Detail string
pkg crypto/x509, type CertificateRequest struct, URIs []*url.URL
pkg crypto/x509, type VerifyOptions struct, MaxConstraintComparisions int
pkg crypto/x509/pkix, method (Name) String() string
pkg crypto/x509/pkix, method (RDNSequence) String() string
pkg database/sql, func OpenDB(driver.Connector) *DB
pkg database/sql/driver, type Connector interface { Connect, Driver }
pkg database/sql/driver, type Connector interface, Connect(context.Context) (Conn, error)
pkg database/sql/driver, type Connector interface, Driver() Driver
pkg database/sql/driver, type DriverContext interface { OpenConnector }
pkg database/sql/driver, type DriverContext interface, OpenConnector(string) (Connector, error)
pkg database/sql/driver, type SessionResetter interface { ResetSession }
pkg database/sql/driver, type SessionResetter interface, ResetSession(context.Context) error
pkg debug/elf, const R_386_16 = 20
pkg debug/elf, const R_386_16 R_386
pkg debug/elf, const R_386_32PLT = 11
pkg debug/elf, const R_386_32PLT R_386
pkg debug/elf, const R_386_8 = 22
pkg debug/elf, const R_386_8 R_386
pkg debug/elf, const R_386_GOT32X = 43
pkg debug/elf, const R_386_GOT32X R_386
pkg debug/elf, const R_386_IRELATIVE = 42
pkg debug/elf, const R_386_IRELATIVE R_386
pkg debug/elf, const R_386_PC16 = 21
pkg debug/elf, const R_386_PC16 R_386
pkg debug/elf, const R_386_PC8 = 23
pkg debug/elf, const R_386_PC8 R_386
pkg debug/elf, const R_386_SIZE32 = 38
pkg debug/elf, const R_386_SIZE32 R_386
pkg debug/elf, const R_386_TLS_DESC = 41
pkg debug/elf, const R_386_TLS_DESC R_386
pkg debug/elf, const R_386_TLS_DESC_CALL = 40
pkg debug/elf, const R_386_TLS_DESC_CALL R_386
pkg debug/elf, const R_386_TLS_GOTDESC = 39
pkg debug/elf, const R_386_TLS_GOTDESC R_386
pkg debug/elf, const R_AARCH64_LD64_GOTOFF_LO15 = 310
pkg debug/elf, const R_AARCH64_LD64_GOTOFF_LO15 R_AARCH64
pkg debug/elf, const R_AARCH64_LD64_GOTPAGE_LO15 = 313
pkg debug/elf, const R_AARCH64_LD64_GOTPAGE_LO15 R_AARCH64
pkg debug/elf, const R_AARCH64_TLSGD_ADR_PREL21 = 512
pkg debug/elf, const R_AARCH64_TLSGD_ADR_PREL21 R_AARCH64
pkg debug/elf, const R_AARCH64_TLSGD_MOVW_G0_NC = 516
pkg debug/elf, const R_AARCH64_TLSGD_MOVW_G0_NC R_AARCH64
pkg debug/elf, const R_AARCH64_TLSGD_MOVW_G1 = 515
pkg debug/elf, const R_AARCH64_TLSGD_MOVW_G1 R_AARCH64
pkg debug/elf, const R_AARCH64_TLSLD_ADR_PAGE21 = 518
pkg debug/elf, const R_AARCH64_TLSLD_ADR_PAGE21 R_AARCH64
pkg debug/elf, const R_AARCH64_TLSLD_ADR_PREL21 = 517
pkg debug/elf, const R_AARCH64_TLSLD_ADR_PREL21 R_AARCH64
pkg debug/elf, const R_AARCH64_TLSLD_LDST128_DTPREL_LO12 = 572
pkg debug/elf, const R_AARCH64_TLSLD_LDST128_DTPREL_LO12 R_AARCH64
pkg debug/elf, const R_AARCH64_TLSLD_LDST128_DTPREL_LO12_NC = 573
pkg debug/elf, const R_AARCH64_TLSLD_LDST128_DTPREL_LO12_NC R_AARCH64
pkg debug/elf, const R_AARCH64_TLSLE_LDST128_TPREL_LO12 = 570
pkg debug/elf, const R_AARCH64_TLSLE_LDST128_TPREL_LO12 R_AARCH64
pkg debug/elf, const R_AARCH64_TLSLE_LDST128_TPREL_LO12_NC = 571
pkg debug/elf, const R_AARCH64_TLSLE_LDST128_TPREL_LO12_NC R_AARCH64
pkg debug/elf, const R_ARM_ABS32_NOI = 55
pkg debug/elf, const R_ARM_ABS32_NOI R_ARM
pkg debug/elf, const R_ARM_ALU_PCREL_15_8 = 33
pkg debug/elf, const R_ARM_ALU_PCREL_15_8 R_ARM
pkg debug/elf, const R_ARM_ALU_PCREL_23_15 = 34
pkg debug/elf, const R_ARM_ALU_PCREL_23_15 R_ARM
pkg debug/elf, const R_ARM_ALU_PCREL_7_0 = 32
pkg debug/elf, const R_ARM_ALU_PCREL_7_0 R_ARM
pkg debug/elf, const R_ARM_ALU_PC_G0 = 58
pkg debug/elf, const R_ARM_ALU_PC_G0 R_ARM
pkg debug/elf, const R_ARM_ALU_PC_G0_NC = 57
pkg debug/elf, const R_ARM_ALU_PC_G0_NC R_ARM
pkg debug/elf, const R_ARM_ALU_PC_G1 = 60
pkg debug/elf, const R_ARM_ALU_PC_G1 R_ARM
pkg debug/elf, const R_ARM_ALU_PC_G1_NC = 59
pkg debug/elf, const R_ARM_ALU_PC_G1_NC R_ARM
pkg debug/elf, const R_ARM_ALU_PC_G2 = 61
pkg debug/elf, const R_ARM_ALU_PC_G2 R_ARM
pkg debug/elf, const R_ARM_ALU_SBREL_19_12_NC = 36
pkg debug/elf, const R_ARM_ALU_SBREL_19_12_NC R_ARM
pkg debug/elf, const R_ARM_ALU_SBREL_27_20_CK = 37
pkg debug/elf, const R_ARM_ALU_SBREL_27_20_CK R_ARM
pkg debug/elf, const R_ARM_ALU_SB_G0 = 71
pkg debug/elf, const R_ARM_ALU_SB_G0 R_ARM
pkg debug/elf, const R_ARM_ALU_SB_G0_NC = 70
pkg debug/elf, const R_ARM_ALU_SB_G0_NC R_ARM
pkg debug/elf, const R_ARM_ALU_SB_G1 = 73
pkg debug/elf, const R_ARM_ALU_SB_G1 R_ARM
pkg debug/elf, const R_ARM_ALU_SB_G1_NC = 72
pkg debug/elf, const R_ARM_ALU_SB_G1_NC R_ARM
pkg debug/elf, const R_ARM_ALU_SB_G2 = 74
pkg debug/elf, const R_ARM_ALU_SB_G2 R_ARM
pkg debug/elf, const R_ARM_BASE_ABS = 31
pkg debug/elf, const R_ARM_BASE_ABS R_ARM
pkg debug/elf, const R_ARM_CALL = 28
pkg debug/elf, const R_ARM_CALL R_ARM
pkg debug/elf, const R_ARM_GOTOFF12 = 98
pkg debug/elf, const R_ARM_GOTOFF12 R_ARM
pkg debug/elf, const R_ARM_GOTRELAX = 99
pkg debug/elf, const R_ARM_GOTRELAX R_ARM
pkg debug/elf, const R_ARM_GOT_ABS = 95
pkg debug/elf, const R_ARM_GOT_ABS R_ARM
pkg debug/elf, const R_ARM_GOT_BREL12 = 97
pkg debug/elf, const R_ARM_GOT_BREL12 R_ARM
pkg debug/elf, const R_ARM_GOT_PREL = 96
pkg debug/elf, const R_ARM_GOT_PREL R_ARM
pkg debug/elf, const R_ARM_IRELATIVE = 160
pkg debug/elf, const R_ARM_IRELATIVE R_ARM
pkg debug/elf, const R_ARM_JUMP24 = 29
pkg debug/elf, const R_ARM_JUMP24 R_ARM
pkg debug/elf, const R_ARM_LDC_PC_G0 = 67
pkg debug/elf, const R_ARM_LDC_PC_G0 R_ARM
pkg debug/elf, const R_ARM_LDC_PC_G1 = 68
pkg debug/elf, const R_ARM_LDC_PC_G1 R_ARM
pkg debug/elf, const R_ARM_LDC_PC_G2 = 69
pkg debug/elf, const R_ARM_LDC_PC_G2 R_ARM
pkg debug/elf, const R_ARM_LDC_SB_G0 = 81
pkg debug/elf, const R_ARM_LDC_SB_G0 R_ARM
pkg debug/elf, const R_ARM_LDC_SB_G1 = 82
pkg debug/elf, const R_ARM_LDC_SB_G1 R_ARM
pkg debug/elf, const R_ARM_LDC_SB_G2 = 83
pkg debug/elf, const R_ARM_LDC_SB_G2 R_ARM
pkg debug/elf, const R_ARM_LDRS_PC_G0 = 64
pkg debug/elf, const R_ARM_LDRS_PC_G0 R_ARM
pkg debug/elf, const R_ARM_LDRS_PC_G1 = 65
pkg debug/elf, const R_ARM_LDRS_PC_G1 R_ARM
pkg debug/elf, const R_ARM_LDRS_PC_G2 = 66
pkg debug/elf, const R_ARM_LDRS_PC_G2 R_ARM
pkg debug/elf, const R_ARM_LDRS_SB_G0 = 78
pkg debug/elf, const R_ARM_LDRS_SB_G0 R_ARM
pkg debug/elf, const R_ARM_LDRS_SB_G1 = 79
pkg debug/elf, const R_ARM_LDRS_SB_G1 R_ARM
pkg debug/elf, const R_ARM_LDRS_SB_G2 = 80
pkg debug/elf, const R_ARM_LDRS_SB_G2 R_ARM
pkg debug/elf, const R_ARM_LDR_PC_G1 = 62
pkg debug/elf, const R_ARM_LDR_PC_G1 R_ARM
pkg debug/elf, const R_ARM_LDR_PC_G2 = 63
pkg debug/elf, const R_ARM_LDR_PC_G2 R_ARM
pkg debug/elf, const R_ARM_LDR_SBREL_11_10_NC = 35
pkg debug/elf, const R_ARM_LDR_SBREL_11_10_NC R_ARM
pkg debug/elf, const R_ARM_LDR_SB_G0 = 75
pkg debug/elf, const R_ARM_LDR_SB_G0 R_ARM
pkg debug/elf, const R_ARM_LDR_SB_G1 = 76
pkg debug/elf, const R_ARM_LDR_SB_G1 R_ARM
pkg debug/elf, const R_ARM_LDR_SB_G2 = 77
pkg debug/elf, const R_ARM_LDR_SB_G2 R_ARM
pkg debug/elf, const R_ARM_ME_TOO = 128
pkg debug/elf, const R_ARM_ME_TOO R_ARM
pkg debug/elf, const R_ARM_MOVT_ABS = 44
pkg debug/elf, const R_ARM_MOVT_ABS R_ARM
pkg debug/elf, const R_ARM_MOVT_BREL = 85
pkg debug/elf, const R_ARM_MOVT_BREL R_ARM
pkg debug/elf, const R_ARM_MOVT_PREL = 46
pkg debug/elf, const R_ARM_MOVT_PREL R_ARM
pkg debug/elf, const R_ARM_MOVW_ABS_NC = 43
pkg debug/elf, const R_ARM_MOVW_ABS_NC R_ARM
pkg debug/elf, const R_ARM_MOVW_BREL = 86
pkg debug/elf, const R_ARM_MOVW_BREL R_ARM
pkg debug/elf, const R_ARM_MOVW_BREL_NC = 84
pkg debug/elf, const R_ARM_MOVW_BREL_NC R_ARM
pkg debug/elf, const R_ARM_MOVW_PREL_NC = 45
pkg debug/elf, const R_ARM_MOVW_PREL_NC R_ARM
pkg debug/elf, const R_ARM_PLT32_ABS = 94
pkg debug/elf, const R_ARM_PLT32_ABS R_ARM
pkg debug/elf, const R_ARM_PREL31 = 42
pkg debug/elf, const R_ARM_PREL31 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_0 = 112
pkg debug/elf, const R_ARM_PRIVATE_0 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_1 = 113
pkg debug/elf, const R_ARM_PRIVATE_1 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_10 = 122
pkg debug/elf, const R_ARM_PRIVATE_10 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_11 = 123
pkg debug/elf, const R_ARM_PRIVATE_11 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_12 = 124
pkg debug/elf, const R_ARM_PRIVATE_12 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_13 = 125
pkg debug/elf, const R_ARM_PRIVATE_13 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_14 = 126
pkg debug/elf, const R_ARM_PRIVATE_14 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_15 = 127
pkg debug/elf, const R_ARM_PRIVATE_15 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_2 = 114
pkg debug/elf, const R_ARM_PRIVATE_2 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_3 = 115
pkg debug/elf, const R_ARM_PRIVATE_3 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_4 = 116
pkg debug/elf, const R_ARM_PRIVATE_4 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_5 = 117
pkg debug/elf, const R_ARM_PRIVATE_5 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_6 = 118
pkg debug/elf, const R_ARM_PRIVATE_6 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_7 = 119
pkg debug/elf, const R_ARM_PRIVATE_7 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_8 = 120
pkg debug/elf, const R_ARM_PRIVATE_8 R_ARM
pkg debug/elf, const R_ARM_PRIVATE_9 = 121
pkg debug/elf, const R_ARM_PRIVATE_9 R_ARM
pkg debug/elf, const R_ARM_REL32_NOI = 56
pkg debug/elf, const R_ARM_REL32_NOI R_ARM
pkg debug/elf, const R_ARM_RXPC25 = 249
pkg debug/elf, const R_ARM_RXPC25 R_ARM
pkg debug/elf, const R_ARM_SBREL31 = 39
pkg debug/elf, const R_ARM_SBREL31 R_ARM
pkg debug/elf, const R_ARM_TARGET1 = 38
pkg debug/elf, const R_ARM_TARGET1 R_ARM
pkg debug/elf, const R_ARM_TARGET2 = 41
pkg debug/elf, const R_ARM_TARGET2 R_ARM
pkg debug/elf, const R_ARM_THM_ALU_ABS_G0_NC = 132
pkg debug/elf, const R_ARM_THM_ALU_ABS_G0_NC R_ARM
pkg debug/elf, const R_ARM_THM_ALU_ABS_G1_NC = 133
pkg debug/elf, const R_ARM_THM_ALU_ABS_G1_NC R_ARM
pkg debug/elf, const R_ARM_THM_ALU_ABS_G2_NC = 134
pkg debug/elf, const R_ARM_THM_ALU_ABS_G2_NC R_ARM
pkg debug/elf, const R_ARM_THM_ALU_ABS_G3 = 135
pkg debug/elf, const R_ARM_THM_ALU_ABS_G3 R_ARM
pkg debug/elf, const R_ARM_THM_ALU_PREL_11_0 = 53
pkg debug/elf, const R_ARM_THM_ALU_PREL_11_0 R_ARM
pkg debug/elf, const R_ARM_THM_GOT_BREL12 = 131
pkg debug/elf, const R_ARM_THM_GOT_BREL12 R_ARM
pkg debug/elf, const R_ARM_THM_JUMP11 = 102
pkg debug/elf, const R_ARM_THM_JUMP11 R_ARM
pkg debug/elf, const R_ARM_THM_JUMP19 = 51
pkg debug/elf, const R_ARM_THM_JUMP19 R_ARM
pkg debug/elf, const R_ARM_THM_JUMP24 = 30
pkg debug/elf, const R_ARM_THM_JUMP24 R_ARM
pkg debug/elf, const R_ARM_THM_JUMP6 = 52
pkg debug/elf, const R_ARM_THM_JUMP6 R_ARM
pkg debug/elf, const R_ARM_THM_JUMP8 = 103
pkg debug/elf, const R_ARM_THM_JUMP8 R_ARM
pkg debug/elf, const R_ARM_THM_MOVT_ABS = 48
pkg debug/elf, const R_ARM_THM_MOVT_ABS R_ARM
pkg debug/elf, const R_ARM_THM_MOVT_BREL = 88
pkg debug/elf, const R_ARM_THM_MOVT_BREL R_ARM
pkg debug/elf, const R_ARM_THM_MOVT_PREL = 50
pkg debug/elf, const R_ARM_THM_MOVT_PREL R_ARM
pkg debug/elf, const R_ARM_THM_MOVW_ABS_NC = 47
pkg debug/elf, const R_ARM_THM_MOVW_ABS_NC R_ARM
pkg debug/elf, const R_ARM_THM_MOVW_BREL = 89
pkg debug/elf, const R_ARM_THM_MOVW_BREL R_ARM
pkg debug/elf, const R_ARM_THM_MOVW_BREL_NC = 87
pkg debug/elf, const R_ARM_THM_MOVW_BREL_NC R_ARM
pkg debug/elf, const R_ARM_THM_MOVW_PREL_NC = 49
pkg debug/elf, const R_ARM_THM_MOVW_PREL_NC R_ARM
pkg debug/elf, const R_ARM_THM_PC12 = 54
pkg debug/elf, const R_ARM_THM_PC12 R_ARM
pkg debug/elf, const R_ARM_THM_TLS_CALL = 93
pkg debug/elf, const R_ARM_THM_TLS_CALL R_ARM
pkg debug/elf, const R_ARM_THM_TLS_DESCSEQ16 = 129
pkg debug/elf, const R_ARM_THM_TLS_DESCSEQ16 R_ARM
pkg debug/elf, const R_ARM_THM_TLS_DESCSEQ32 = 130
pkg debug/elf, const R_ARM_THM_TLS_DESCSEQ32 R_ARM
pkg debug/elf, const R_ARM_TLS_CALL = 91
pkg debug/elf, const R_ARM_TLS_CALL R_ARM
pkg debug/elf, const R_ARM_TLS_DESCSEQ = 92
pkg debug/elf, const R_ARM_TLS_DESCSEQ R_ARM
pkg debug/elf, const R_ARM_TLS_DTPMOD32 = 17
pkg debug/elf, const R_ARM_TLS_DTPMOD32 R_ARM
pkg debug/elf, const R_ARM_TLS_DTPOFF32 = 18
pkg debug/elf, const R_ARM_TLS_DTPOFF32 R_ARM
pkg debug/elf, const R_ARM_TLS_GD32 = 104
pkg debug/elf, const R_ARM_TLS_GD32 R_ARM
pkg debug/elf, const R_ARM_TLS_GOTDESC = 90
pkg debug/elf, const R_ARM_TLS_GOTDESC R_ARM
pkg debug/elf, const R_ARM_TLS_IE12GP = 111
pkg debug/elf, const R_ARM_TLS_IE12GP R_ARM
pkg debug/elf, const R_ARM_TLS_IE32 = 107
pkg debug/elf, const R_ARM_TLS_IE32 R_ARM
pkg debug/elf, const R_ARM_TLS_LDM32 = 105
pkg debug/elf, const R_ARM_TLS_LDM32 R_ARM
pkg debug/elf, const R_ARM_TLS_LDO12 = 109
pkg debug/elf, const R_ARM_TLS_LDO12 R_ARM
pkg debug/elf, const R_ARM_TLS_LDO32 = 106
pkg debug/elf, const R_ARM_TLS_LDO32 R_ARM
pkg debug/elf, const R_ARM_TLS_LE12 = 110
pkg debug/elf, const R_ARM_TLS_LE12 R_ARM
pkg debug/elf, const R_ARM_TLS_LE32 = 108
pkg debug/elf, const R_ARM_TLS_LE32 R_ARM
pkg debug/elf, const R_ARM_TLS_TPOFF32 = 19
pkg debug/elf, const R_ARM_TLS_TPOFF32 R_ARM
pkg debug/elf, const R_ARM_V4BX = 40
pkg debug/elf, const R_ARM_V4BX R_ARM
pkg debug/elf, const R_PPC64_ADDR16_HIGH = 110
pkg debug/elf, const R_PPC64_ADDR16_HIGH R_PPC64
pkg debug/elf, const R_PPC64_ADDR16_HIGHA = 111
pkg debug/elf, const R_PPC64_ADDR16_HIGHA R_PPC64
pkg debug/elf, const R_PPC64_ADDR64_LOCAL = 117
pkg debug/elf, const R_PPC64_ADDR64_LOCAL R_PPC64
pkg debug/elf, const R_PPC64_DTPREL16_HIGH = 114
pkg debug/elf, const R_PPC64_DTPREL16_HIGH R_PPC64
pkg debug/elf, const R_PPC64_DTPREL16_HIGHA = 115
pkg debug/elf, const R_PPC64_DTPREL16_HIGHA R_PPC64
pkg debug/elf, const R_PPC64_ENTRY = 118
pkg debug/elf, const R_PPC64_ENTRY R_PPC64
pkg debug/elf, const R_PPC64_IRELATIVE = 248
pkg debug/elf, const R_PPC64_IRELATIVE R_PPC64
pkg debug/elf, const R_PPC64_JMP_IREL = 247
pkg debug/elf, const R_PPC64_JMP_IREL R_PPC64
pkg debug/elf, const R_PPC64_PLT16_LO_DS = 60
pkg debug/elf, const R_PPC64_PLT16_LO_DS R_PPC64
pkg debug/elf, const R_PPC64_PLTGOT16 = 52
pkg debug/elf, const R_PPC64_PLTGOT16 R_PPC64
pkg debug/elf, const R_PPC64_PLTGOT16_DS = 65
pkg debug/elf, const R_PPC64_PLTGOT16_DS R_PPC64
pkg debug/elf, const R_PPC64_PLTGOT16_HA = 55
pkg debug/elf, const R_PPC64_PLTGOT16_HA R_PPC64
pkg debug/elf, const R_PPC64_PLTGOT16_HI = 54
pkg debug/elf, const R_PPC64_PLTGOT16_HI R_PPC64
pkg debug/elf, const R_PPC64_PLTGOT16_LO = 53
pkg debug/elf, const R_PPC64_PLTGOT16_LO R_PPC64
pkg debug/elf, const R_PPC64_PLTGOT_LO_DS = 66
pkg debug/elf, const R_PPC64_PLTGOT_LO_DS R_PPC64
pkg debug/elf, const R_PPC64_REL16DX_HA = 246
pkg debug/elf, const R_PPC64_REL16DX_HA R_PPC64
pkg debug/elf, const R_PPC64_REL24_NOTOC = 116
pkg debug/elf, const R_PPC64_REL24_NOTOC R_PPC64
pkg debug/elf, const R_PPC64_SECTOFF_DS = 61
pkg debug/elf, const R_PPC64_SECTOFF_DS R_PPC64
pkg debug/elf, const R_PPC64_SECTOFF_LO_DS = 61
pkg debug/elf, const R_PPC64_SECTOFF_LO_DS R_PPC64
pkg debug/elf, const R_PPC64_TOCSAVE = 109
pkg debug/elf, const R_PPC64_TOCSAVE R_PPC64
pkg debug/elf, const R_PPC64_TPREL16_HIGH = 112
pkg debug/elf, const R_PPC64_TPREL16_HIGH R_PPC64
pkg debug/elf, const R_PPC64_TPREL16_HIGHA = 113
pkg debug/elf, const R_PPC64_TPREL16_HIGHA R_PPC64
pkg debug/elf, const R_X86_64_GOT64 = 27
pkg debug/elf, const R_X86_64_GOT64 R_X86_64
pkg debug/elf, const R_X86_64_GOTOFF64 = 25
pkg debug/elf, const R_X86_64_GOTOFF64 R_X86_64
pkg debug/elf, const R_X86_64_GOTPC32 = 26
pkg debug/elf, const R_X86_64_GOTPC32 R_X86_64
pkg debug/elf, const R_X86_64_GOTPC32_TLSDESC = 34
pkg debug/elf, const R_X86_64_GOTPC32_TLSDESC R_X86_64
pkg debug/elf, const R_X86_64_GOTPC64 = 29
pkg debug/elf, const R_X86_64_GOTPC64 R_X86_64
pkg debug/elf, const R_X86_64_GOTPCREL64 = 28
pkg debug/elf, const R_X86_64_GOTPCREL64 R_X86_64
pkg debug/elf, const R_X86_64_GOTPCRELX = 41
pkg debug/elf, const R_X86_64_GOTPCRELX R_X86_64
pkg debug/elf, const R_X86_64_GOTPLT64 = 30
pkg debug/elf, const R_X86_64_GOTPLT64 R_X86_64
pkg debug/elf, const R_X86_64_IRELATIVE = 37
pkg debug/elf, const R_X86_64_IRELATIVE R_X86_64
pkg debug/elf, const R_X86_64_PC32_BND = 39
pkg debug/elf, const R_X86_64_PC32_BND R_X86_64
pkg debug/elf, const R_X86_64_PC64 = 24
pkg debug/elf, const R_X86_64_PC64 R_X86_64
pkg debug/elf, const R_X86_64_PLT32_BND = 40
pkg debug/elf, const R_X86_64_PLT32_BND R_X86_64
pkg debug/elf, const R_X86_64_PLTOFF64 = 31
pkg debug/elf, const R_X86_64_PLTOFF64 R_X86_64
pkg debug/elf, const R_X86_64_RELATIVE64 = 38
pkg debug/elf, const R_X86_64_RELATIVE64 R_X86_64
pkg debug/elf, const R_X86_64_REX_GOTPCRELX = 42
pkg debug/elf, const R_X86_64_REX_GOTPCRELX R_X86_64
pkg debug/elf, const R_X86_64_SIZE32 = 32
pkg debug/elf, const R_X86_64_SIZE32 R_X86_64
pkg debug/elf, const R_X86_64_SIZE64 = 33
pkg debug/elf, const R_X86_64_SIZE64 R_X86_64
pkg debug/elf, const R_X86_64_TLSDESC = 36
pkg debug/elf, const R_X86_64_TLSDESC R_X86_64
pkg debug/elf, const R_X86_64_TLSDESC_CALL = 35
pkg debug/elf, const R_X86_64_TLSDESC_CALL R_X86_64
pkg debug/macho, const ARM64_RELOC_ADDEND = 10
pkg debug/macho, const ARM64_RELOC_ADDEND RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_BRANCH26 = 2
pkg debug/macho, const ARM64_RELOC_BRANCH26 RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_GOT_LOAD_PAGE21 = 5
pkg debug/macho, const ARM64_RELOC_GOT_LOAD_PAGE21 RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_GOT_LOAD_PAGEOFF12 = 6
pkg debug/macho, const ARM64_RELOC_GOT_LOAD_PAGEOFF12 RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_PAGE21 = 3
pkg debug/macho, const ARM64_RELOC_PAGE21 RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_PAGEOFF12 = 4
pkg debug/macho, const ARM64_RELOC_PAGEOFF12 RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_POINTER_TO_GOT = 7
pkg debug/macho, const ARM64_RELOC_POINTER_TO_GOT RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_SUBTRACTOR = 1
pkg debug/macho, const ARM64_RELOC_SUBTRACTOR RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_TLVP_LOAD_PAGE21 = 8
pkg debug/macho, const ARM64_RELOC_TLVP_LOAD_PAGE21 RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_TLVP_LOAD_PAGEOFF12 = 9
pkg debug/macho, const ARM64_RELOC_TLVP_LOAD_PAGEOFF12 RelocTypeARM64
pkg debug/macho, const ARM64_RELOC_UNSIGNED = 0
pkg debug/macho, const ARM64_RELOC_UNSIGNED RelocTypeARM64
pkg debug/macho, const ARM_RELOC_BR24 = 5
pkg debug/macho, const ARM_RELOC_BR24 RelocTypeARM
pkg debug/macho, const ARM_RELOC_HALF = 8
pkg debug/macho, const ARM_RELOC_HALF RelocTypeARM
pkg debug/macho, const ARM_RELOC_HALF_SECTDIFF = 9
pkg debug/macho, const ARM_RELOC_HALF_SECTDIFF RelocTypeARM
pkg debug/macho, const ARM_RELOC_LOCAL_SECTDIFF = 3
pkg debug/macho, const ARM_RELOC_LOCAL_SECTDIFF RelocTypeARM
pkg debug/macho, const ARM_RELOC_PAIR = 1
pkg debug/macho, const ARM_RELOC_PAIR RelocTypeARM
pkg debug/macho, const ARM_RELOC_PB_LA_PTR = 4
pkg debug/macho, const ARM_RELOC_PB_LA_PTR RelocTypeARM
pkg debug/macho, const ARM_RELOC_SECTDIFF = 2
pkg debug/macho, const ARM_RELOC_SECTDIFF RelocTypeARM
pkg debug/macho, const ARM_RELOC_VANILLA = 0
pkg debug/macho, const ARM_RELOC_VANILLA RelocTypeARM
pkg debug/macho, const ARM_THUMB_32BIT_BRANCH = 7
pkg debug/macho, const ARM_THUMB_32BIT_BRANCH RelocTypeARM
pkg debug/macho, const ARM_THUMB_RELOC_BR22 = 6
pkg debug/macho, const ARM_THUMB_RELOC_BR22 RelocTypeARM
pkg debug/macho, const FlagAllModsBound = 4096
pkg debug/macho, const FlagAllModsBound uint32
pkg debug/macho, const FlagAllowStackExecution = 131072
pkg debug/macho, const FlagAllowStackExecution uint32
pkg debug/macho, const FlagAppExtensionSafe = 33554432
pkg debug/macho, const FlagAppExtensionSafe uint32
pkg debug/macho, const FlagBindAtLoad = 8
pkg debug/macho, const FlagBindAtLoad uint32
pkg debug/macho, const FlagBindsToWeak = 65536
pkg debug/macho, const FlagBindsToWeak uint32
pkg debug/macho, const FlagCanonical = 16384
pkg debug/macho, const FlagCanonical uint32
pkg debug/macho, const FlagDeadStrippableDylib = 4194304
pkg debug/macho, const FlagDeadStrippableDylib uint32
pkg debug/macho, const FlagDyldLink = 4
pkg debug/macho, const FlagDyldLink uint32
pkg debug/macho, const FlagForceFlat = 256
pkg debug/macho, const FlagForceFlat uint32
pkg debug/macho, const FlagHasTLVDescriptors = 8388608
pkg debug/macho, const FlagHasTLVDescriptors uint32
pkg debug/macho, const FlagIncrLink = 2
pkg debug/macho, const FlagIncrLink uint32
pkg debug/macho, const FlagLazyInit = 64
pkg debug/macho, const FlagLazyInit uint32
pkg debug/macho, const FlagNoFixPrebinding = 1024
pkg debug/macho, const FlagNoFixPrebinding uint32
pkg debug/macho, const FlagNoHeapExecution = 16777216
pkg debug/macho, const FlagNoHeapExecution uint32
pkg debug/macho, const FlagNoMultiDefs = 512
pkg debug/macho, const FlagNoMultiDefs uint32
pkg debug/macho, const FlagNoReexportedDylibs = 1048576
pkg debug/macho, const FlagNoReexportedDylibs uint32
pkg debug/macho, const FlagNoUndefs = 1
pkg debug/macho, const FlagNoUndefs uint32
pkg debug/macho, const FlagPIE = 2097152
pkg debug/macho, const FlagPIE uint32
pkg debug/macho, const FlagPrebindable = 2048
pkg debug/macho, const FlagPrebindable uint32
pkg debug/macho, const FlagPrebound = 16
pkg debug/macho, const FlagPrebound uint32
pkg debug/macho, const FlagRootSafe = 262144
pkg debug/macho, const FlagRootSafe uint32
pkg debug/macho, const FlagSetuidSafe = 524288
pkg debug/macho, const FlagSetuidSafe uint32
pkg debug/macho, const FlagSplitSegs = 32
pkg debug/macho, const FlagSplitSegs uint32
pkg debug/macho, const FlagSubsectionsViaSymbols = 8192
pkg debug/macho, const FlagSubsectionsViaSymbols uint32
pkg debug/macho, const FlagTwoLevel = 128
pkg debug/macho, const FlagTwoLevel uint32
pkg debug/macho, const FlagWeakDefines = 32768
pkg debug/macho, const FlagWeakDefines uint32
pkg debug/macho, const GENERIC_RELOC_LOCAL_SECTDIFF = 4
pkg debug/macho, const GENERIC_RELOC_LOCAL_SECTDIFF RelocTypeGeneric
pkg debug/macho, const GENERIC_RELOC_PAIR = 1
pkg debug/macho, const GENERIC_RELOC_PAIR RelocTypeGeneric
pkg debug/macho, const GENERIC_RELOC_PB_LA_PTR = 3
pkg debug/macho, const GENERIC_RELOC_PB_LA_PTR RelocTypeGeneric
pkg debug/macho, const GENERIC_RELOC_SECTDIFF = 2
pkg debug/macho, const GENERIC_RELOC_SECTDIFF RelocTypeGeneric
pkg debug/macho, const GENERIC_RELOC_TLV = 5
pkg debug/macho, const GENERIC_RELOC_TLV RelocTypeGeneric
pkg debug/macho, const GENERIC_RELOC_VANILLA = 0
pkg debug/macho, const GENERIC_RELOC_VANILLA RelocTypeGeneric
pkg debug/macho, const LoadCmdRpath = 2147483676
pkg debug/macho, const LoadCmdRpath LoadCmd
pkg debug/macho, const X86_64_RELOC_BRANCH = 2
pkg debug/macho, const X86_64_RELOC_BRANCH RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_GOT = 4
pkg debug/macho, const X86_64_RELOC_GOT RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_GOT_LOAD = 3
pkg debug/macho, const X86_64_RELOC_GOT_LOAD RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_SIGNED = 1
pkg debug/macho, const X86_64_RELOC_SIGNED RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_SIGNED_1 = 6
pkg debug/macho, const X86_64_RELOC_SIGNED_1 RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_SIGNED_2 = 7
pkg debug/macho, const X86_64_RELOC_SIGNED_2 RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_SIGNED_4 = 8
pkg debug/macho, const X86_64_RELOC_SIGNED_4 RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_SUBTRACTOR = 5
pkg debug/macho, const X86_64_RELOC_SUBTRACTOR RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_TLV = 9
pkg debug/macho, const X86_64_RELOC_TLV RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_UNSIGNED = 0
pkg debug/macho, const X86_64_RELOC_UNSIGNED RelocTypeX86_64
pkg debug/macho, method (RelocTypeARM) GoString() string
pkg debug/macho, method (RelocTypeARM) String() string
pkg debug/macho, method (RelocTypeARM64) GoString() string
pkg debug/macho, method (RelocTypeARM64) String() string
pkg debug/macho, method (RelocTypeGeneric) GoString() string
pkg debug/macho, method (RelocTypeGeneric) String() string
pkg debug/macho, method (RelocTypeX86_64) GoString() string
pkg debug/macho, method (RelocTypeX86_64) String() string
pkg debug/macho, method (Rpath) Raw() []uint8
pkg debug/macho, method (Type) GoString() string
pkg debug/macho, method (Type) String() string
pkg debug/macho, type Reloc struct
pkg debug/macho, type Reloc struct, Addr uint32
pkg debug/macho, type Reloc struct, Extern bool
pkg debug/macho, type Reloc struct, Len uint8
pkg debug/macho, type Reloc struct, Pcrel bool
pkg debug/macho, type Reloc struct, Scattered bool
pkg debug/macho, type Reloc struct, Type uint8
pkg debug/macho, type Reloc struct, Value uint32
pkg debug/macho, type RelocTypeARM int
pkg debug/macho, type RelocTypeARM64 int
pkg debug/macho, type RelocTypeGeneric int
pkg debug/macho, type RelocTypeX86_64 int
pkg debug/macho, type Rpath struct
pkg debug/macho, type Rpath struct, Path string
pkg debug/macho, type Rpath struct, embedded LoadBytes
pkg debug/macho, type RpathCmd struct
pkg debug/macho, type RpathCmd struct, Cmd LoadCmd
pkg debug/macho, type RpathCmd struct, Len uint32
pkg debug/macho, type RpathCmd struct, Path uint32
pkg debug/macho, type Section struct, Relocs []Reloc
pkg encoding/asn1, const TagNumericString = 18
pkg encoding/asn1, const TagNumericString ideal-int
pkg encoding/asn1, func MarshalWithParams(interface{}, string) ([]uint8, error)
pkg encoding/csv, type ParseError struct, StartLine int
pkg encoding/hex, func NewDecoder(io.Reader) io.Reader
pkg encoding/hex, func NewEncoder(io.Writer) io.Writer
pkg encoding/json, method (*Decoder) DisallowUnknownFields()
pkg encoding/xml, func NewTokenDecoder(TokenReader) *Decoder
pkg encoding/xml, type TokenReader interface { Token }
pkg encoding/xml, type TokenReader interface, Token() (Token, error)
pkg flag, method (*FlagSet) ErrorHandling() ErrorHandling
pkg flag, method (*FlagSet) Name() string
pkg flag, method (*FlagSet) Output() io.Writer
pkg html/template, type Srcset string
pkg math, func Erfcinv(float64) float64
pkg math, func Erfinv(float64) float64
pkg math, func Round(float64) float64
pkg math, func RoundToEven(float64) float64
pkg math/big, const MaxBase = 62
pkg math/big, method (*Float) Sqrt(*Float) *Float
pkg math/big, method (*Int) CmpAbs(*Int) int
pkg math/rand, func Shuffle(int, func(int, int))
pkg math/rand, method (*Rand) Shuffle(int, func(int, int))
pkg net, method (*TCPListener) SyscallConn() (syscall.RawConn, error)
pkg net, method (*UnixListener) SyscallConn() (syscall.RawConn, error)
pkg net/smtp, method (*Client) Noop() error
pkg os, func IsTimeout(error) bool
pkg os, method (*File) SetDeadline(time.Time) error
pkg os, method (*File) SetReadDeadline(time.Time) error
pkg os, method (*File) SetWriteDeadline(time.Time) error
pkg os, method (*PathError) Timeout() bool
pkg os, method (*SyscallError) Timeout() bool
pkg os, var ErrNoDeadline error
pkg strings, method (*Builder) Grow(int)
pkg strings, method (*Builder) Len() int
pkg strings, method (*Builder) Reset()
pkg strings, method (*Builder) String() string
pkg strings, method (*Builder) Write([]uint8) (int, error)
pkg strings, method (*Builder) WriteByte(uint8) error
pkg strings, method (*Builder) WriteRune(int32) (int, error)
pkg strings, method (*Builder) WriteString(string) (int, error)
pkg strings, type Builder struct
pkg syscall (freebsd-386), const SYS_UTIMENSAT = 547
pkg syscall (freebsd-386), const SYS_UTIMENSAT ideal-int
pkg syscall (freebsd-386-cgo), const SYS_UTIMENSAT = 547
pkg syscall (freebsd-386-cgo), const SYS_UTIMENSAT ideal-int
pkg syscall (freebsd-amd64), const SYS_UTIMENSAT = 547
pkg syscall (freebsd-amd64), const SYS_UTIMENSAT ideal-int
pkg syscall (freebsd-amd64-cgo), const SYS_UTIMENSAT = 547
pkg syscall (freebsd-amd64-cgo), const SYS_UTIMENSAT ideal-int
pkg syscall (freebsd-arm), const SYS_UTIMENSAT = 547
pkg syscall (freebsd-arm), const SYS_UTIMENSAT ideal-int
pkg syscall (freebsd-arm-cgo), const SYS_UTIMENSAT = 547
pkg syscall (freebsd-arm-cgo), const SYS_UTIMENSAT ideal-int
pkg syscall (windows-386), func CreateProcessAsUser(Token, *uint16, *uint16, *SecurityAttributes, *SecurityAttributes, bool, uint32, *uint16, *uint16, *StartupInfo, *ProcessInformation) error
pkg syscall (windows-386), type SysProcAttr struct, Token Token
pkg syscall (windows-amd64), func CreateProcessAsUser(Token, *uint16, *uint16, *SecurityAttributes, *SecurityAttributes, bool, uint32, *uint16, *uint16, *StartupInfo, *ProcessInformation) error
pkg syscall (windows-amd64), type SysProcAttr struct, Token Token
pkg time, func LoadLocationFromTZData(string, []uint8) (*Location, error)
pkg unicode, const Version = "10.0.0"
pkg unicode, var Masaram_Gondi *RangeTable
pkg unicode, var Nushu *RangeTable
pkg unicode, var Regional_Indicator *RangeTable
pkg unicode, var Soyombo *RangeTable
pkg unicode, var Zanabazar_Square *RangeTable

View File

@@ -1,559 +0,0 @@
pkg crypto/cipher, func NewGCMWithTagSize(Block, int) (AEAD, error)
pkg crypto/rsa, method (*PrivateKey) Size() int
pkg crypto/rsa, method (*PublicKey) Size() int
pkg crypto/tls, method (*ConnectionState) ExportKeyingMaterial(string, []uint8, int) ([]uint8, error)
pkg database/sql, method (IsolationLevel) String() string
pkg database/sql, type DBStats struct, Idle int
pkg database/sql, type DBStats struct, InUse int
pkg database/sql, type DBStats struct, MaxIdleClosed int64
pkg database/sql, type DBStats struct, MaxLifetimeClosed int64
pkg database/sql, type DBStats struct, MaxOpenConnections int
pkg database/sql, type DBStats struct, WaitCount int64
pkg database/sql, type DBStats struct, WaitDuration time.Duration
pkg debug/elf, const ELFOSABI_AROS = 15
pkg debug/elf, const ELFOSABI_AROS OSABI
pkg debug/elf, const ELFOSABI_CLOUDABI = 17
pkg debug/elf, const ELFOSABI_CLOUDABI OSABI
pkg debug/elf, const ELFOSABI_FENIXOS = 16
pkg debug/elf, const ELFOSABI_FENIXOS OSABI
pkg debug/elf, const EM_56800EX = 200
pkg debug/elf, const EM_56800EX Machine
pkg debug/elf, const EM_68HC05 = 72
pkg debug/elf, const EM_68HC05 Machine
pkg debug/elf, const EM_68HC08 = 71
pkg debug/elf, const EM_68HC08 Machine
pkg debug/elf, const EM_68HC11 = 70
pkg debug/elf, const EM_68HC11 Machine
pkg debug/elf, const EM_68HC16 = 69
pkg debug/elf, const EM_68HC16 Machine
pkg debug/elf, const EM_78KOR = 199
pkg debug/elf, const EM_78KOR Machine
pkg debug/elf, const EM_8051 = 165
pkg debug/elf, const EM_8051 Machine
pkg debug/elf, const EM_ALTERA_NIOS2 = 113
pkg debug/elf, const EM_ALTERA_NIOS2 Machine
pkg debug/elf, const EM_AMDGPU = 224
pkg debug/elf, const EM_AMDGPU Machine
pkg debug/elf, const EM_ARCA = 109
pkg debug/elf, const EM_ARCA Machine
pkg debug/elf, const EM_ARC_COMPACT = 93
pkg debug/elf, const EM_ARC_COMPACT Machine
pkg debug/elf, const EM_ARC_COMPACT2 = 195
pkg debug/elf, const EM_ARC_COMPACT2 Machine
pkg debug/elf, const EM_AVR = 83
pkg debug/elf, const EM_AVR Machine
pkg debug/elf, const EM_AVR32 = 185
pkg debug/elf, const EM_AVR32 Machine
pkg debug/elf, const EM_BA1 = 201
pkg debug/elf, const EM_BA1 Machine
pkg debug/elf, const EM_BA2 = 202
pkg debug/elf, const EM_BA2 Machine
pkg debug/elf, const EM_BLACKFIN = 106
pkg debug/elf, const EM_BLACKFIN Machine
pkg debug/elf, const EM_BPF = 247
pkg debug/elf, const EM_BPF Machine
pkg debug/elf, const EM_C166 = 116
pkg debug/elf, const EM_C166 Machine
pkg debug/elf, const EM_CDP = 215
pkg debug/elf, const EM_CDP Machine
pkg debug/elf, const EM_CE = 119
pkg debug/elf, const EM_CE Machine
pkg debug/elf, const EM_CLOUDSHIELD = 192
pkg debug/elf, const EM_CLOUDSHIELD Machine
pkg debug/elf, const EM_COGE = 216
pkg debug/elf, const EM_COGE Machine
pkg debug/elf, const EM_COOL = 217
pkg debug/elf, const EM_COOL Machine
pkg debug/elf, const EM_COREA_1ST = 193
pkg debug/elf, const EM_COREA_1ST Machine
pkg debug/elf, const EM_COREA_2ND = 194
pkg debug/elf, const EM_COREA_2ND Machine
pkg debug/elf, const EM_CR = 103
pkg debug/elf, const EM_CR Machine
pkg debug/elf, const EM_CR16 = 177
pkg debug/elf, const EM_CR16 Machine
pkg debug/elf, const EM_CRAYNV2 = 172
pkg debug/elf, const EM_CRAYNV2 Machine
pkg debug/elf, const EM_CRIS = 76
pkg debug/elf, const EM_CRIS Machine
pkg debug/elf, const EM_CRX = 114
pkg debug/elf, const EM_CRX Machine
pkg debug/elf, const EM_CSR_KALIMBA = 219
pkg debug/elf, const EM_CSR_KALIMBA Machine
pkg debug/elf, const EM_CUDA = 190
pkg debug/elf, const EM_CUDA Machine
pkg debug/elf, const EM_CYPRESS_M8C = 161
pkg debug/elf, const EM_CYPRESS_M8C Machine
pkg debug/elf, const EM_D10V = 85
pkg debug/elf, const EM_D10V Machine
pkg debug/elf, const EM_D30V = 86
pkg debug/elf, const EM_D30V Machine
pkg debug/elf, const EM_DSP24 = 136
pkg debug/elf, const EM_DSP24 Machine
pkg debug/elf, const EM_DSPIC30F = 118
pkg debug/elf, const EM_DSPIC30F Machine
pkg debug/elf, const EM_DXP = 112
pkg debug/elf, const EM_DXP Machine
pkg debug/elf, const EM_ECOG1 = 168
pkg debug/elf, const EM_ECOG1 Machine
pkg debug/elf, const EM_ECOG16 = 176
pkg debug/elf, const EM_ECOG16 Machine
pkg debug/elf, const EM_ECOG1X = 168
pkg debug/elf, const EM_ECOG1X Machine
pkg debug/elf, const EM_ECOG2 = 134
pkg debug/elf, const EM_ECOG2 Machine
pkg debug/elf, const EM_ETPU = 178
pkg debug/elf, const EM_ETPU Machine
pkg debug/elf, const EM_EXCESS = 111
pkg debug/elf, const EM_EXCESS Machine
pkg debug/elf, const EM_F2MC16 = 104
pkg debug/elf, const EM_F2MC16 Machine
pkg debug/elf, const EM_FIREPATH = 78
pkg debug/elf, const EM_FIREPATH Machine
pkg debug/elf, const EM_FR30 = 84
pkg debug/elf, const EM_FR30 Machine
pkg debug/elf, const EM_FT32 = 222
pkg debug/elf, const EM_FT32 Machine
pkg debug/elf, const EM_FX66 = 66
pkg debug/elf, const EM_FX66 Machine
pkg debug/elf, const EM_HUANY = 81
pkg debug/elf, const EM_HUANY Machine
pkg debug/elf, const EM_INTEL205 = 205
pkg debug/elf, const EM_INTEL205 Machine
pkg debug/elf, const EM_INTEL206 = 206
pkg debug/elf, const EM_INTEL206 Machine
pkg debug/elf, const EM_INTEL207 = 207
pkg debug/elf, const EM_INTEL207 Machine
pkg debug/elf, const EM_INTEL208 = 208
pkg debug/elf, const EM_INTEL208 Machine
pkg debug/elf, const EM_INTEL209 = 209
pkg debug/elf, const EM_INTEL209 Machine
pkg debug/elf, const EM_IP2K = 101
pkg debug/elf, const EM_IP2K Machine
pkg debug/elf, const EM_JAVELIN = 77
pkg debug/elf, const EM_JAVELIN Machine
pkg debug/elf, const EM_K10M = 181
pkg debug/elf, const EM_K10M Machine
pkg debug/elf, const EM_KM32 = 210
pkg debug/elf, const EM_KM32 Machine
pkg debug/elf, const EM_KMX16 = 212
pkg debug/elf, const EM_KMX16 Machine
pkg debug/elf, const EM_KMX32 = 211
pkg debug/elf, const EM_KMX32 Machine
pkg debug/elf, const EM_KMX8 = 213
pkg debug/elf, const EM_KMX8 Machine
pkg debug/elf, const EM_KVARC = 214
pkg debug/elf, const EM_KVARC Machine
pkg debug/elf, const EM_L10M = 180
pkg debug/elf, const EM_L10M Machine
pkg debug/elf, const EM_LANAI = 244
pkg debug/elf, const EM_LANAI Machine
pkg debug/elf, const EM_LATTICEMICO32 = 138
pkg debug/elf, const EM_LATTICEMICO32 Machine
pkg debug/elf, const EM_M16C = 117
pkg debug/elf, const EM_M16C Machine
pkg debug/elf, const EM_M32C = 120
pkg debug/elf, const EM_M32C Machine
pkg debug/elf, const EM_M32R = 88
pkg debug/elf, const EM_M32R Machine
pkg debug/elf, const EM_MANIK = 171
pkg debug/elf, const EM_MANIK Machine
pkg debug/elf, const EM_MAX = 102
pkg debug/elf, const EM_MAX Machine
pkg debug/elf, const EM_MAXQ30 = 169
pkg debug/elf, const EM_MAXQ30 Machine
pkg debug/elf, const EM_MCHP_PIC = 204
pkg debug/elf, const EM_MCHP_PIC Machine
pkg debug/elf, const EM_MCST_ELBRUS = 175
pkg debug/elf, const EM_MCST_ELBRUS Machine
pkg debug/elf, const EM_METAG = 174
pkg debug/elf, const EM_METAG Machine
pkg debug/elf, const EM_MICROBLAZE = 189
pkg debug/elf, const EM_MICROBLAZE Machine
pkg debug/elf, const EM_MMDSP_PLUS = 160
pkg debug/elf, const EM_MMDSP_PLUS Machine
pkg debug/elf, const EM_MMIX = 80
pkg debug/elf, const EM_MMIX Machine
pkg debug/elf, const EM_MN10200 = 90
pkg debug/elf, const EM_MN10200 Machine
pkg debug/elf, const EM_MN10300 = 89
pkg debug/elf, const EM_MN10300 Machine
pkg debug/elf, const EM_MOXIE = 223
pkg debug/elf, const EM_MOXIE Machine
pkg debug/elf, const EM_MSP430 = 105
pkg debug/elf, const EM_MSP430 Machine
pkg debug/elf, const EM_NDS32 = 167
pkg debug/elf, const EM_NDS32 Machine
pkg debug/elf, const EM_NORC = 218
pkg debug/elf, const EM_NORC Machine
pkg debug/elf, const EM_NS32K = 97
pkg debug/elf, const EM_NS32K Machine
pkg debug/elf, const EM_OPEN8 = 196
pkg debug/elf, const EM_OPEN8 Machine
pkg debug/elf, const EM_OPENRISC = 92
pkg debug/elf, const EM_OPENRISC Machine
pkg debug/elf, const EM_PDP10 = 64
pkg debug/elf, const EM_PDP10 Machine
pkg debug/elf, const EM_PDP11 = 65
pkg debug/elf, const EM_PDP11 Machine
pkg debug/elf, const EM_PDSP = 63
pkg debug/elf, const EM_PDSP Machine
pkg debug/elf, const EM_PJ = 91
pkg debug/elf, const EM_PJ Machine
pkg debug/elf, const EM_PRISM = 82
pkg debug/elf, const EM_PRISM Machine
pkg debug/elf, const EM_QDSP6 = 164
pkg debug/elf, const EM_QDSP6 Machine
pkg debug/elf, const EM_R32C = 162
pkg debug/elf, const EM_R32C Machine
pkg debug/elf, const EM_RISCV = 243
pkg debug/elf, const EM_RISCV Machine
pkg debug/elf, const EM_RL78 = 197
pkg debug/elf, const EM_RL78 Machine
pkg debug/elf, const EM_RS08 = 132
pkg debug/elf, const EM_RS08 Machine
pkg debug/elf, const EM_RX = 173
pkg debug/elf, const EM_RX Machine
pkg debug/elf, const EM_SCORE7 = 135
pkg debug/elf, const EM_SCORE7 Machine
pkg debug/elf, const EM_SEP = 108
pkg debug/elf, const EM_SEP Machine
pkg debug/elf, const EM_SE_C17 = 139
pkg debug/elf, const EM_SE_C17 Machine
pkg debug/elf, const EM_SE_C33 = 107
pkg debug/elf, const EM_SE_C33 Machine
pkg debug/elf, const EM_SHARC = 133
pkg debug/elf, const EM_SHARC Machine
pkg debug/elf, const EM_SLE9X = 179
pkg debug/elf, const EM_SLE9X Machine
pkg debug/elf, const EM_SNP1K = 99
pkg debug/elf, const EM_SNP1K Machine
pkg debug/elf, const EM_ST19 = 74
pkg debug/elf, const EM_ST19 Machine
pkg debug/elf, const EM_ST200 = 100
pkg debug/elf, const EM_ST200 Machine
pkg debug/elf, const EM_ST7 = 68
pkg debug/elf, const EM_ST7 Machine
pkg debug/elf, const EM_ST9PLUS = 67
pkg debug/elf, const EM_ST9PLUS Machine
pkg debug/elf, const EM_STM8 = 186
pkg debug/elf, const EM_STM8 Machine
pkg debug/elf, const EM_STXP7X = 166
pkg debug/elf, const EM_STXP7X Machine
pkg debug/elf, const EM_SVX = 73
pkg debug/elf, const EM_SVX Machine
pkg debug/elf, const EM_TILE64 = 187
pkg debug/elf, const EM_TILE64 Machine
pkg debug/elf, const EM_TILEGX = 191
pkg debug/elf, const EM_TILEGX Machine
pkg debug/elf, const EM_TILEPRO = 188
pkg debug/elf, const EM_TILEPRO Machine
pkg debug/elf, const EM_TI_ARP32 = 143
pkg debug/elf, const EM_TI_ARP32 Machine
pkg debug/elf, const EM_TI_C2000 = 141
pkg debug/elf, const EM_TI_C2000 Machine
pkg debug/elf, const EM_TI_C5500 = 142
pkg debug/elf, const EM_TI_C5500 Machine
pkg debug/elf, const EM_TI_C6000 = 140
pkg debug/elf, const EM_TI_C6000 Machine
pkg debug/elf, const EM_TI_PRU = 144
pkg debug/elf, const EM_TI_PRU Machine
pkg debug/elf, const EM_TMM_GPP = 96
pkg debug/elf, const EM_TMM_GPP Machine
pkg debug/elf, const EM_TPC = 98
pkg debug/elf, const EM_TPC Machine
pkg debug/elf, const EM_TRIMEDIA = 163
pkg debug/elf, const EM_TRIMEDIA Machine
pkg debug/elf, const EM_TSK3000 = 131
pkg debug/elf, const EM_TSK3000 Machine
pkg debug/elf, const EM_UNICORE = 110
pkg debug/elf, const EM_UNICORE Machine
pkg debug/elf, const EM_V850 = 87
pkg debug/elf, const EM_V850 Machine
pkg debug/elf, const EM_VAX = 75
pkg debug/elf, const EM_VAX Machine
pkg debug/elf, const EM_VIDEOCORE = 95
pkg debug/elf, const EM_VIDEOCORE Machine
pkg debug/elf, const EM_VIDEOCORE3 = 137
pkg debug/elf, const EM_VIDEOCORE3 Machine
pkg debug/elf, const EM_VIDEOCORE5 = 198
pkg debug/elf, const EM_VIDEOCORE5 Machine
pkg debug/elf, const EM_VISIUM = 221
pkg debug/elf, const EM_VISIUM Machine
pkg debug/elf, const EM_XCORE = 203
pkg debug/elf, const EM_XCORE Machine
pkg debug/elf, const EM_XGATE = 115
pkg debug/elf, const EM_XGATE Machine
pkg debug/elf, const EM_XIMO16 = 170
pkg debug/elf, const EM_XIMO16 Machine
pkg debug/elf, const EM_XTENSA = 94
pkg debug/elf, const EM_XTENSA Machine
pkg debug/elf, const EM_Z80 = 220
pkg debug/elf, const EM_Z80 Machine
pkg debug/elf, const EM_ZSP = 79
pkg debug/elf, const EM_ZSP Machine
pkg debug/elf, const R_RISCV_32 = 1
pkg debug/elf, const R_RISCV_32 R_RISCV
pkg debug/elf, const R_RISCV_64 = 2
pkg debug/elf, const R_RISCV_64 R_RISCV
pkg debug/elf, const R_RISCV_ADD16 = 34
pkg debug/elf, const R_RISCV_ADD16 R_RISCV
pkg debug/elf, const R_RISCV_ADD32 = 35
pkg debug/elf, const R_RISCV_ADD32 R_RISCV
pkg debug/elf, const R_RISCV_ADD64 = 36
pkg debug/elf, const R_RISCV_ADD64 R_RISCV
pkg debug/elf, const R_RISCV_ADD8 = 33
pkg debug/elf, const R_RISCV_ADD8 R_RISCV
pkg debug/elf, const R_RISCV_ALIGN = 43
pkg debug/elf, const R_RISCV_ALIGN R_RISCV
pkg debug/elf, const R_RISCV_BRANCH = 16
pkg debug/elf, const R_RISCV_BRANCH R_RISCV
pkg debug/elf, const R_RISCV_CALL = 18
pkg debug/elf, const R_RISCV_CALL R_RISCV
pkg debug/elf, const R_RISCV_CALL_PLT = 19
pkg debug/elf, const R_RISCV_CALL_PLT R_RISCV
pkg debug/elf, const R_RISCV_COPY = 4
pkg debug/elf, const R_RISCV_COPY R_RISCV
pkg debug/elf, const R_RISCV_GNU_VTENTRY = 42
pkg debug/elf, const R_RISCV_GNU_VTENTRY R_RISCV
pkg debug/elf, const R_RISCV_GNU_VTINHERIT = 41
pkg debug/elf, const R_RISCV_GNU_VTINHERIT R_RISCV
pkg debug/elf, const R_RISCV_GOT_HI20 = 20
pkg debug/elf, const R_RISCV_GOT_HI20 R_RISCV
pkg debug/elf, const R_RISCV_GPREL_I = 47
pkg debug/elf, const R_RISCV_GPREL_I R_RISCV
pkg debug/elf, const R_RISCV_GPREL_S = 48
pkg debug/elf, const R_RISCV_GPREL_S R_RISCV
pkg debug/elf, const R_RISCV_HI20 = 26
pkg debug/elf, const R_RISCV_HI20 R_RISCV
pkg debug/elf, const R_RISCV_JAL = 17
pkg debug/elf, const R_RISCV_JAL R_RISCV
pkg debug/elf, const R_RISCV_JUMP_SLOT = 5
pkg debug/elf, const R_RISCV_JUMP_SLOT R_RISCV
pkg debug/elf, const R_RISCV_LO12_I = 27
pkg debug/elf, const R_RISCV_LO12_I R_RISCV
pkg debug/elf, const R_RISCV_LO12_S = 28
pkg debug/elf, const R_RISCV_LO12_S R_RISCV
pkg debug/elf, const R_RISCV_NONE = 0
pkg debug/elf, const R_RISCV_NONE R_RISCV
pkg debug/elf, const R_RISCV_PCREL_HI20 = 23
pkg debug/elf, const R_RISCV_PCREL_HI20 R_RISCV
pkg debug/elf, const R_RISCV_PCREL_LO12_I = 24
pkg debug/elf, const R_RISCV_PCREL_LO12_I R_RISCV
pkg debug/elf, const R_RISCV_PCREL_LO12_S = 25
pkg debug/elf, const R_RISCV_PCREL_LO12_S R_RISCV
pkg debug/elf, const R_RISCV_RELATIVE = 3
pkg debug/elf, const R_RISCV_RELATIVE R_RISCV
pkg debug/elf, const R_RISCV_RELAX = 51
pkg debug/elf, const R_RISCV_RELAX R_RISCV
pkg debug/elf, const R_RISCV_RVC_BRANCH = 44
pkg debug/elf, const R_RISCV_RVC_BRANCH R_RISCV
pkg debug/elf, const R_RISCV_RVC_JUMP = 45
pkg debug/elf, const R_RISCV_RVC_JUMP R_RISCV
pkg debug/elf, const R_RISCV_RVC_LUI = 46
pkg debug/elf, const R_RISCV_RVC_LUI R_RISCV
pkg debug/elf, const R_RISCV_SET16 = 55
pkg debug/elf, const R_RISCV_SET16 R_RISCV
pkg debug/elf, const R_RISCV_SET32 = 56
pkg debug/elf, const R_RISCV_SET32 R_RISCV
pkg debug/elf, const R_RISCV_SET6 = 53
pkg debug/elf, const R_RISCV_SET6 R_RISCV
pkg debug/elf, const R_RISCV_SET8 = 54
pkg debug/elf, const R_RISCV_SET8 R_RISCV
pkg debug/elf, const R_RISCV_SUB16 = 38
pkg debug/elf, const R_RISCV_SUB16 R_RISCV
pkg debug/elf, const R_RISCV_SUB32 = 39
pkg debug/elf, const R_RISCV_SUB32 R_RISCV
pkg debug/elf, const R_RISCV_SUB6 = 52
pkg debug/elf, const R_RISCV_SUB6 R_RISCV
pkg debug/elf, const R_RISCV_SUB64 = 40
pkg debug/elf, const R_RISCV_SUB64 R_RISCV
pkg debug/elf, const R_RISCV_SUB8 = 37
pkg debug/elf, const R_RISCV_SUB8 R_RISCV
pkg debug/elf, const R_RISCV_TLS_DTPMOD32 = 6
pkg debug/elf, const R_RISCV_TLS_DTPMOD32 R_RISCV
pkg debug/elf, const R_RISCV_TLS_DTPMOD64 = 7
pkg debug/elf, const R_RISCV_TLS_DTPMOD64 R_RISCV
pkg debug/elf, const R_RISCV_TLS_DTPREL32 = 8
pkg debug/elf, const R_RISCV_TLS_DTPREL32 R_RISCV
pkg debug/elf, const R_RISCV_TLS_DTPREL64 = 9
pkg debug/elf, const R_RISCV_TLS_DTPREL64 R_RISCV
pkg debug/elf, const R_RISCV_TLS_GD_HI20 = 22
pkg debug/elf, const R_RISCV_TLS_GD_HI20 R_RISCV
pkg debug/elf, const R_RISCV_TLS_GOT_HI20 = 21
pkg debug/elf, const R_RISCV_TLS_GOT_HI20 R_RISCV
pkg debug/elf, const R_RISCV_TLS_TPREL32 = 10
pkg debug/elf, const R_RISCV_TLS_TPREL32 R_RISCV
pkg debug/elf, const R_RISCV_TLS_TPREL64 = 11
pkg debug/elf, const R_RISCV_TLS_TPREL64 R_RISCV
pkg debug/elf, const R_RISCV_TPREL_ADD = 32
pkg debug/elf, const R_RISCV_TPREL_ADD R_RISCV
pkg debug/elf, const R_RISCV_TPREL_HI20 = 29
pkg debug/elf, const R_RISCV_TPREL_HI20 R_RISCV
pkg debug/elf, const R_RISCV_TPREL_I = 49
pkg debug/elf, const R_RISCV_TPREL_I R_RISCV
pkg debug/elf, const R_RISCV_TPREL_LO12_I = 30
pkg debug/elf, const R_RISCV_TPREL_LO12_I R_RISCV
pkg debug/elf, const R_RISCV_TPREL_LO12_S = 31
pkg debug/elf, const R_RISCV_TPREL_LO12_S R_RISCV
pkg debug/elf, const R_RISCV_TPREL_S = 50
pkg debug/elf, const R_RISCV_TPREL_S R_RISCV
pkg debug/elf, method (R_RISCV) GoString() string
pkg debug/elf, method (R_RISCV) String() string
pkg debug/elf, type R_RISCV int
pkg debug/macho, const CpuArm64 = 16777228
pkg debug/macho, const CpuArm64 Cpu
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_ARCHITECTURE = 7
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_ARCHITECTURE ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_BASERELOC = 5
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_BASERELOC ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT = 11
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR = 14
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_DEBUG = 6
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_DEBUG ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT = 13
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_EXCEPTION = 3
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_EXCEPTION ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_EXPORT = 0
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_EXPORT ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_GLOBALPTR = 8
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_GLOBALPTR ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_IAT = 12
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_IAT ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_IMPORT = 1
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_IMPORT ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG = 10
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_RESOURCE = 2
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_RESOURCE ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_SECURITY = 4
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_SECURITY ideal-int
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_TLS = 9
pkg debug/pe, const IMAGE_DIRECTORY_ENTRY_TLS ideal-int
pkg debug/pe, const IMAGE_FILE_MACHINE_ARM64 = 43620
pkg debug/pe, const IMAGE_FILE_MACHINE_ARM64 ideal-int
pkg go/ast, type CompositeLit struct, Incomplete bool
pkg go/token, method (*File) AddLineColumnInfo(int, string, int, int)
pkg go/types, func NewInterfaceType([]*Func, []Type) *Interface
pkg go/types, method (*Interface) EmbeddedType(int) Type
pkg go/types, method (*Var) Embedded() bool
pkg net, method (*ListenConfig) Listen(context.Context, string, string) (Listener, error)
pkg net, method (*ListenConfig) ListenPacket(context.Context, string, string) (PacketConn, error)
pkg net, type Dialer struct, Control func(string, string, syscall.RawConn) error
pkg net, type ListenConfig struct
pkg net, type ListenConfig struct, Control func(string, string, syscall.RawConn) error
pkg net/http, const SameSiteDefaultMode = 1
pkg net/http, const SameSiteDefaultMode SameSite
pkg net/http, const SameSiteLaxMode = 2
pkg net/http, const SameSiteLaxMode SameSite
pkg net/http, const SameSiteStrictMode = 3
pkg net/http, const SameSiteStrictMode SameSite
pkg net/http, const StatusMisdirectedRequest = 421
pkg net/http, const StatusMisdirectedRequest ideal-int
pkg net/http, type Cookie struct, SameSite SameSite
pkg net/http, type SameSite int
pkg net/http, type Transport struct, MaxConnsPerHost int
pkg net/http/httptrace, type ClientTrace struct, Got1xxResponse func(int, textproto.MIMEHeader) error
pkg net/http/httptrace, type ClientTrace struct, WroteHeaderField func(string, []string)
pkg net/http/httputil, type ReverseProxy struct, ErrorHandler func(http.ResponseWriter, *http.Request, error)
pkg os, const ModeIrregular = 524288
pkg os, const ModeIrregular FileMode
pkg os, const ModeType = 2399666176
pkg os, func UserCacheDir() (string, error)
pkg os/signal, func Ignored(os.Signal) bool
pkg regexp/syntax, method (Op) String() string
pkg runtime/trace, func IsEnabled() bool
pkg runtime/trace, func Log(context.Context, string, string)
pkg runtime/trace, func Logf(context.Context, string, string, ...interface{})
pkg runtime/trace, func NewTask(context.Context, string) (context.Context, *Task)
pkg runtime/trace, func StartRegion(context.Context, string) *Region
pkg runtime/trace, func WithRegion(context.Context, string, func())
pkg runtime/trace, method (*Region) End()
pkg runtime/trace, method (*Task) End()
pkg runtime/trace, type Region struct
pkg runtime/trace, type Task struct
pkg syscall (netbsd-386), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (netbsd-386), func Pipe2([]int, int) error
pkg syscall (netbsd-386-cgo), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (netbsd-386-cgo), func Pipe2([]int, int) error
pkg syscall (netbsd-amd64), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (netbsd-amd64), func Pipe2([]int, int) error
pkg syscall (netbsd-amd64-cgo), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (netbsd-amd64-cgo), func Pipe2([]int, int) error
pkg syscall (netbsd-arm), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (netbsd-arm), func Pipe2([]int, int) error
pkg syscall (netbsd-arm-cgo), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (netbsd-arm-cgo), func Pipe2([]int, int) error
pkg syscall (openbsd-386), const SOCK_CLOEXEC = 32768
pkg syscall (openbsd-386), const SOCK_CLOEXEC ideal-int
pkg syscall (openbsd-386), const SOCK_NONBLOCK = 16384
pkg syscall (openbsd-386), const SOCK_NONBLOCK ideal-int
pkg syscall (openbsd-386), const SYS_ACCEPT4 = 93
pkg syscall (openbsd-386), const SYS_ACCEPT4 ideal-int
pkg syscall (openbsd-386), const SYS_PIPE2 = 101
pkg syscall (openbsd-386), const SYS_PIPE2 ideal-int
pkg syscall (openbsd-386), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (openbsd-386), func Pipe2([]int, int) error
pkg syscall (openbsd-386-cgo), const SOCK_CLOEXEC = 32768
pkg syscall (openbsd-386-cgo), const SOCK_CLOEXEC ideal-int
pkg syscall (openbsd-386-cgo), const SOCK_NONBLOCK = 16384
pkg syscall (openbsd-386-cgo), const SOCK_NONBLOCK ideal-int
pkg syscall (openbsd-386-cgo), const SYS_ACCEPT4 = 93
pkg syscall (openbsd-386-cgo), const SYS_ACCEPT4 ideal-int
pkg syscall (openbsd-386-cgo), const SYS_PIPE2 = 101
pkg syscall (openbsd-386-cgo), const SYS_PIPE2 ideal-int
pkg syscall (openbsd-386-cgo), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (openbsd-386-cgo), func Pipe2([]int, int) error
pkg syscall (openbsd-amd64), const SOCK_CLOEXEC = 32768
pkg syscall (openbsd-amd64), const SOCK_CLOEXEC ideal-int
pkg syscall (openbsd-amd64), const SOCK_NONBLOCK = 16384
pkg syscall (openbsd-amd64), const SOCK_NONBLOCK ideal-int
pkg syscall (openbsd-amd64), const SYS_ACCEPT4 = 93
pkg syscall (openbsd-amd64), const SYS_ACCEPT4 ideal-int
pkg syscall (openbsd-amd64), const SYS_PIPE2 = 101
pkg syscall (openbsd-amd64), const SYS_PIPE2 ideal-int
pkg syscall (openbsd-amd64), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (openbsd-amd64), func Pipe2([]int, int) error
pkg syscall (openbsd-amd64-cgo), const SOCK_CLOEXEC = 32768
pkg syscall (openbsd-amd64-cgo), const SOCK_CLOEXEC ideal-int
pkg syscall (openbsd-amd64-cgo), const SOCK_NONBLOCK = 16384
pkg syscall (openbsd-amd64-cgo), const SOCK_NONBLOCK ideal-int
pkg syscall (openbsd-amd64-cgo), const SYS_ACCEPT4 = 93
pkg syscall (openbsd-amd64-cgo), const SYS_ACCEPT4 ideal-int
pkg syscall (openbsd-amd64-cgo), const SYS_PIPE2 = 101
pkg syscall (openbsd-amd64-cgo), const SYS_PIPE2 ideal-int
pkg syscall (openbsd-amd64-cgo), func Accept4(int, int) (int, Sockaddr, error)
pkg syscall (openbsd-amd64-cgo), func Pipe2([]int, int) error
pkg syscall (windows-386), const TOKEN_ADJUST_SESSIONID = 256
pkg syscall (windows-386), const TOKEN_ADJUST_SESSIONID ideal-int
pkg syscall (windows-386), const TOKEN_ALL_ACCESS = 983551
pkg syscall (windows-386), type AddrinfoW struct, Addr Pointer
pkg syscall (windows-386), type CertChainPolicyPara struct, ExtraPolicyPara Pointer
pkg syscall (windows-386), type CertChainPolicyStatus struct, ExtraPolicyStatus Pointer
pkg syscall (windows-386), type CertContext struct, CertInfo *CertInfo
pkg syscall (windows-386), type CertInfo struct
pkg syscall (windows-386), type CertRevocationCrlInfo struct
pkg syscall (windows-386), type CertRevocationInfo struct, CrlInfo *CertRevocationCrlInfo
pkg syscall (windows-386), type CertRevocationInfo struct, OidSpecificInfo Pointer
pkg syscall (windows-386), type CertSimpleChain struct, TrustListInfo *CertTrustListInfo
pkg syscall (windows-386), type CertTrustListInfo struct
pkg syscall (windows-386), type Pointer *struct
pkg syscall (windows-amd64), const TOKEN_ADJUST_SESSIONID = 256
pkg syscall (windows-amd64), const TOKEN_ADJUST_SESSIONID ideal-int
pkg syscall (windows-amd64), const TOKEN_ALL_ACCESS = 983551
pkg syscall (windows-amd64), type AddrinfoW struct, Addr Pointer
pkg syscall (windows-amd64), type CertChainPolicyPara struct, ExtraPolicyPara Pointer
pkg syscall (windows-amd64), type CertChainPolicyStatus struct, ExtraPolicyStatus Pointer
pkg syscall (windows-amd64), type CertContext struct, CertInfo *CertInfo
pkg syscall (windows-amd64), type CertInfo struct
pkg syscall (windows-amd64), type CertRevocationCrlInfo struct
pkg syscall (windows-amd64), type CertRevocationInfo struct, CrlInfo *CertRevocationCrlInfo
pkg syscall (windows-amd64), type CertRevocationInfo struct, OidSpecificInfo Pointer
pkg syscall (windows-amd64), type CertSimpleChain struct, TrustListInfo *CertTrustListInfo
pkg syscall (windows-amd64), type CertTrustListInfo struct
pkg syscall (windows-amd64), type Pointer *struct
pkg syscall, const ImplementsGetwd = true
pkg text/template/parse, type PipeNode struct, IsAssign bool

View File

@@ -1,228 +0,0 @@
pkg bytes, func ReplaceAll([]uint8, []uint8, []uint8) []uint8
pkg crypto/tls, const TLS_AES_128_GCM_SHA256 = 4865
pkg crypto/tls, const TLS_AES_128_GCM_SHA256 uint16
pkg crypto/tls, const TLS_AES_256_GCM_SHA384 = 4866
pkg crypto/tls, const TLS_AES_256_GCM_SHA384 uint16
pkg crypto/tls, const TLS_CHACHA20_POLY1305_SHA256 = 4867
pkg crypto/tls, const TLS_CHACHA20_POLY1305_SHA256 uint16
pkg crypto/tls, const VersionTLS13 = 772
pkg crypto/tls, const VersionTLS13 ideal-int
pkg crypto/tls, type RecordHeaderError struct, Conn net.Conn
pkg debug/elf, const R_RISCV_32_PCREL = 57
pkg debug/elf, const R_RISCV_32_PCREL R_RISCV
pkg debug/pe, const IMAGE_FILE_MACHINE_ARMNT = 452
pkg debug/pe, const IMAGE_FILE_MACHINE_ARMNT ideal-int
pkg expvar, method (*Map) Delete(string)
pkg go/doc, const PreserveAST = 4
pkg go/doc, const PreserveAST Mode
pkg go/importer, func ForCompiler(*token.FileSet, string, Lookup) types.Importer
pkg go/token, method (*File) LineStart(int) Pos
pkg io, type StringWriter interface { WriteString }
pkg io, type StringWriter interface, WriteString(string) (int, error)
pkg log, method (*Logger) Writer() io.Writer
pkg math/bits, func Add(uint, uint, uint) (uint, uint)
pkg math/bits, func Add32(uint32, uint32, uint32) (uint32, uint32)
pkg math/bits, func Add64(uint64, uint64, uint64) (uint64, uint64)
pkg math/bits, func Div(uint, uint, uint) (uint, uint)
pkg math/bits, func Div32(uint32, uint32, uint32) (uint32, uint32)
pkg math/bits, func Div64(uint64, uint64, uint64) (uint64, uint64)
pkg math/bits, func Mul(uint, uint) (uint, uint)
pkg math/bits, func Mul32(uint32, uint32) (uint32, uint32)
pkg math/bits, func Mul64(uint64, uint64) (uint64, uint64)
pkg math/bits, func Sub(uint, uint, uint) (uint, uint)
pkg math/bits, func Sub32(uint32, uint32, uint32) (uint32, uint32)
pkg math/bits, func Sub64(uint64, uint64, uint64) (uint64, uint64)
pkg net/http, const StatusTooEarly = 425
pkg net/http, const StatusTooEarly ideal-int
pkg net/http, method (*Client) CloseIdleConnections()
pkg os, const ModeType = 2401763328
pkg os, func UserHomeDir() (string, error)
pkg os, method (*File) SyscallConn() (syscall.RawConn, error)
pkg os, method (*ProcessState) ExitCode() int
pkg os/exec, method (ExitError) ExitCode() int
pkg reflect, method (*MapIter) Key() Value
pkg reflect, method (*MapIter) Next() bool
pkg reflect, method (*MapIter) Value() Value
pkg reflect, method (Value) MapRange() *MapIter
pkg reflect, type MapIter struct
pkg runtime/debug, func ReadBuildInfo() (*BuildInfo, bool)
pkg runtime/debug, type BuildInfo struct
pkg runtime/debug, type BuildInfo struct, Deps []*Module
pkg runtime/debug, type BuildInfo struct, Main Module
pkg runtime/debug, type BuildInfo struct, Path string
pkg runtime/debug, type Module struct
pkg runtime/debug, type Module struct, Path string
pkg runtime/debug, type Module struct, Replace *Module
pkg runtime/debug, type Module struct, Sum string
pkg runtime/debug, type Module struct, Version string
pkg strings, func ReplaceAll(string, string, string) string
pkg strings, method (*Builder) Cap() int
pkg syscall (freebsd-386), const S_IRWXG = 56
pkg syscall (freebsd-386), const S_IRWXG ideal-int
pkg syscall (freebsd-386), const S_IRWXO = 7
pkg syscall (freebsd-386), const S_IRWXO ideal-int
pkg syscall (freebsd-386), func Fstatat(int, string, *Stat_t, int) error
pkg syscall (freebsd-386), func Mknod(string, uint32, uint64) error
pkg syscall (freebsd-386), type Dirent struct, Fileno uint64
pkg syscall (freebsd-386), type Dirent struct, Namlen uint16
pkg syscall (freebsd-386), type Dirent struct, Off int64
pkg syscall (freebsd-386), type Dirent struct, Pad0 uint8
pkg syscall (freebsd-386), type Dirent struct, Pad1 uint16
pkg syscall (freebsd-386), type Stat_t struct, Atim_ext int32
pkg syscall (freebsd-386), type Stat_t struct, Blksize int32
pkg syscall (freebsd-386), type Stat_t struct, Btim_ext int32
pkg syscall (freebsd-386), type Stat_t struct, Ctim_ext int32
pkg syscall (freebsd-386), type Stat_t struct, Dev uint64
pkg syscall (freebsd-386), type Stat_t struct, Gen uint64
pkg syscall (freebsd-386), type Stat_t struct, Ino uint64
pkg syscall (freebsd-386), type Stat_t struct, Mtim_ext int32
pkg syscall (freebsd-386), type Stat_t struct, Nlink uint64
pkg syscall (freebsd-386), type Stat_t struct, Padding0 int16
pkg syscall (freebsd-386), type Stat_t struct, Padding1 int32
pkg syscall (freebsd-386), type Stat_t struct, Rdev uint64
pkg syscall (freebsd-386), type Stat_t struct, Spare [10]uint64
pkg syscall (freebsd-386), type Statfs_t struct, Mntfromname [1024]int8
pkg syscall (freebsd-386), type Statfs_t struct, Mntonname [1024]int8
pkg syscall (freebsd-386-cgo), const S_IRWXG = 56
pkg syscall (freebsd-386-cgo), const S_IRWXG ideal-int
pkg syscall (freebsd-386-cgo), const S_IRWXO = 7
pkg syscall (freebsd-386-cgo), const S_IRWXO ideal-int
pkg syscall (freebsd-386-cgo), func Fstatat(int, string, *Stat_t, int) error
pkg syscall (freebsd-386-cgo), func Mknod(string, uint32, uint64) error
pkg syscall (freebsd-386-cgo), type Dirent struct, Fileno uint64
pkg syscall (freebsd-386-cgo), type Dirent struct, Namlen uint16
pkg syscall (freebsd-386-cgo), type Dirent struct, Off int64
pkg syscall (freebsd-386-cgo), type Dirent struct, Pad0 uint8
pkg syscall (freebsd-386-cgo), type Dirent struct, Pad1 uint16
pkg syscall (freebsd-386-cgo), type Stat_t struct, Atim_ext int32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Blksize int32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Btim_ext int32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Ctim_ext int32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Dev uint64
pkg syscall (freebsd-386-cgo), type Stat_t struct, Gen uint64
pkg syscall (freebsd-386-cgo), type Stat_t struct, Ino uint64
pkg syscall (freebsd-386-cgo), type Stat_t struct, Mtim_ext int32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Nlink uint64
pkg syscall (freebsd-386-cgo), type Stat_t struct, Padding0 int16
pkg syscall (freebsd-386-cgo), type Stat_t struct, Padding1 int32
pkg syscall (freebsd-386-cgo), type Stat_t struct, Rdev uint64
pkg syscall (freebsd-386-cgo), type Stat_t struct, Spare [10]uint64
pkg syscall (freebsd-386-cgo), type Statfs_t struct, Mntfromname [1024]int8
pkg syscall (freebsd-386-cgo), type Statfs_t struct, Mntonname [1024]int8
pkg syscall (freebsd-amd64), const S_IRWXG = 56
pkg syscall (freebsd-amd64), const S_IRWXG ideal-int
pkg syscall (freebsd-amd64), const S_IRWXO = 7
pkg syscall (freebsd-amd64), const S_IRWXO ideal-int
pkg syscall (freebsd-amd64), func Fstatat(int, string, *Stat_t, int) error
pkg syscall (freebsd-amd64), func Mknod(string, uint32, uint64) error
pkg syscall (freebsd-amd64), type Dirent struct, Fileno uint64
pkg syscall (freebsd-amd64), type Dirent struct, Namlen uint16
pkg syscall (freebsd-amd64), type Dirent struct, Off int64
pkg syscall (freebsd-amd64), type Dirent struct, Pad0 uint8
pkg syscall (freebsd-amd64), type Dirent struct, Pad1 uint16
pkg syscall (freebsd-amd64), type Stat_t struct, Blksize int32
pkg syscall (freebsd-amd64), type Stat_t struct, Dev uint64
pkg syscall (freebsd-amd64), type Stat_t struct, Gen uint64
pkg syscall (freebsd-amd64), type Stat_t struct, Ino uint64
pkg syscall (freebsd-amd64), type Stat_t struct, Nlink uint64
pkg syscall (freebsd-amd64), type Stat_t struct, Padding0 int16
pkg syscall (freebsd-amd64), type Stat_t struct, Padding1 int32
pkg syscall (freebsd-amd64), type Stat_t struct, Rdev uint64
pkg syscall (freebsd-amd64), type Stat_t struct, Spare [10]uint64
pkg syscall (freebsd-amd64), type Statfs_t struct, Mntfromname [1024]int8
pkg syscall (freebsd-amd64), type Statfs_t struct, Mntonname [1024]int8
pkg syscall (freebsd-amd64-cgo), const S_IRWXG = 56
pkg syscall (freebsd-amd64-cgo), const S_IRWXG ideal-int
pkg syscall (freebsd-amd64-cgo), const S_IRWXO = 7
pkg syscall (freebsd-amd64-cgo), const S_IRWXO ideal-int
pkg syscall (freebsd-amd64-cgo), func Fstatat(int, string, *Stat_t, int) error
pkg syscall (freebsd-amd64-cgo), func Mknod(string, uint32, uint64) error
pkg syscall (freebsd-amd64-cgo), type Dirent struct, Fileno uint64
pkg syscall (freebsd-amd64-cgo), type Dirent struct, Namlen uint16
pkg syscall (freebsd-amd64-cgo), type Dirent struct, Off int64
pkg syscall (freebsd-amd64-cgo), type Dirent struct, Pad0 uint8
pkg syscall (freebsd-amd64-cgo), type Dirent struct, Pad1 uint16
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Blksize int32
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Dev uint64
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Gen uint64
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Ino uint64
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Nlink uint64
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Padding0 int16
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Padding1 int32
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Rdev uint64
pkg syscall (freebsd-amd64-cgo), type Stat_t struct, Spare [10]uint64
pkg syscall (freebsd-amd64-cgo), type Statfs_t struct, Mntfromname [1024]int8
pkg syscall (freebsd-amd64-cgo), type Statfs_t struct, Mntonname [1024]int8
pkg syscall (freebsd-arm), const S_IRWXG = 56
pkg syscall (freebsd-arm), const S_IRWXG ideal-int
pkg syscall (freebsd-arm), const S_IRWXO = 7
pkg syscall (freebsd-arm), const S_IRWXO ideal-int
pkg syscall (freebsd-arm), func Fstatat(int, string, *Stat_t, int) error
pkg syscall (freebsd-arm), func Mknod(string, uint32, uint64) error
pkg syscall (freebsd-arm), type Dirent struct, Fileno uint64
pkg syscall (freebsd-arm), type Dirent struct, Namlen uint16
pkg syscall (freebsd-arm), type Dirent struct, Off int64
pkg syscall (freebsd-arm), type Dirent struct, Pad0 uint8
pkg syscall (freebsd-arm), type Dirent struct, Pad1 uint16
pkg syscall (freebsd-arm), type Stat_t struct, Blksize int32
pkg syscall (freebsd-arm), type Stat_t struct, Dev uint64
pkg syscall (freebsd-arm), type Stat_t struct, Gen uint64
pkg syscall (freebsd-arm), type Stat_t struct, Ino uint64
pkg syscall (freebsd-arm), type Stat_t struct, Nlink uint64
pkg syscall (freebsd-arm), type Stat_t struct, Padding0 int16
pkg syscall (freebsd-arm), type Stat_t struct, Padding1 int32
pkg syscall (freebsd-arm), type Stat_t struct, Rdev uint64
pkg syscall (freebsd-arm), type Stat_t struct, Spare [10]uint64
pkg syscall (freebsd-arm), type Statfs_t struct, Mntfromname [1024]int8
pkg syscall (freebsd-arm), type Statfs_t struct, Mntonname [1024]int8
pkg syscall (freebsd-arm-cgo), const S_IRWXG = 56
pkg syscall (freebsd-arm-cgo), const S_IRWXG ideal-int
pkg syscall (freebsd-arm-cgo), const S_IRWXO = 7
pkg syscall (freebsd-arm-cgo), const S_IRWXO ideal-int
pkg syscall (freebsd-arm-cgo), func Fstatat(int, string, *Stat_t, int) error
pkg syscall (freebsd-arm-cgo), func Mknod(string, uint32, uint64) error
pkg syscall (freebsd-arm-cgo), type Dirent struct, Fileno uint64
pkg syscall (freebsd-arm-cgo), type Dirent struct, Namlen uint16
pkg syscall (freebsd-arm-cgo), type Dirent struct, Off int64
pkg syscall (freebsd-arm-cgo), type Dirent struct, Pad0 uint8
pkg syscall (freebsd-arm-cgo), type Dirent struct, Pad1 uint16
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Blksize int32
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Dev uint64
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Gen uint64
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Ino uint64
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Nlink uint64
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Padding0 int16
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Padding1 int32
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Rdev uint64
pkg syscall (freebsd-arm-cgo), type Stat_t struct, Spare [10]uint64
pkg syscall (freebsd-arm-cgo), type Statfs_t struct, Mntfromname [1024]int8
pkg syscall (freebsd-arm-cgo), type Statfs_t struct, Mntonname [1024]int8
pkg syscall (openbsd-386), const S_IRWXG = 56
pkg syscall (openbsd-386), const S_IRWXG ideal-int
pkg syscall (openbsd-386), const S_IRWXO = 7
pkg syscall (openbsd-386), const S_IRWXO ideal-int
pkg syscall (openbsd-386-cgo), const S_IRWXG = 56
pkg syscall (openbsd-386-cgo), const S_IRWXG ideal-int
pkg syscall (openbsd-386-cgo), const S_IRWXO = 7
pkg syscall (openbsd-386-cgo), const S_IRWXO ideal-int
pkg syscall (openbsd-amd64), const S_IRWXG = 56
pkg syscall (openbsd-amd64), const S_IRWXG ideal-int
pkg syscall (openbsd-amd64), const S_IRWXO = 7
pkg syscall (openbsd-amd64), const S_IRWXO ideal-int
pkg syscall (openbsd-amd64-cgo), const S_IRWXG = 56
pkg syscall (openbsd-amd64-cgo), const S_IRWXG ideal-int
pkg syscall (openbsd-amd64-cgo), const S_IRWXO = 7
pkg syscall (openbsd-amd64-cgo), const S_IRWXO ideal-int
pkg syscall (windows-386), const UNIX_PATH_MAX = 108
pkg syscall (windows-386), const UNIX_PATH_MAX ideal-int
pkg syscall (windows-386), func Syscall18(uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (windows-386), type RawSockaddrAny struct, Pad [100]int8
pkg syscall (windows-386), type RawSockaddrUnix struct, Family uint16
pkg syscall (windows-386), type RawSockaddrUnix struct, Path [108]int8
pkg syscall (windows-amd64), const UNIX_PATH_MAX = 108
pkg syscall (windows-amd64), const UNIX_PATH_MAX ideal-int
pkg syscall (windows-amd64), func Syscall18(uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (windows-amd64), type RawSockaddrAny struct, Pad [100]int8
pkg syscall (windows-amd64), type RawSockaddrUnix struct, Family uint16
pkg syscall (windows-amd64), type RawSockaddrUnix struct, Path [108]int8
pkg syscall, type RawSockaddrUnix struct

File diff suppressed because it is too large Load Diff

View File

@@ -1,197 +0,0 @@
pkg crypto/tls, const TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 = 52393
pkg crypto/tls, const TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 uint16
pkg crypto/tls, const TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 = 52392
pkg crypto/tls, const TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 uint16
pkg crypto/tls, func CipherSuiteName(uint16) string
pkg crypto/tls, func CipherSuites() []*CipherSuite
pkg crypto/tls, func InsecureCipherSuites() []*CipherSuite
pkg crypto/tls, method (*CertificateRequestInfo) SupportsCertificate(*Certificate) error
pkg crypto/tls, method (*ClientHelloInfo) SupportsCertificate(*Certificate) error
pkg crypto/tls, type Certificate struct, SupportedSignatureAlgorithms []SignatureScheme
pkg crypto/tls, type CertificateRequestInfo struct, Version uint16
pkg crypto/tls, type CipherSuite struct
pkg crypto/tls, type CipherSuite struct, ID uint16
pkg crypto/tls, type CipherSuite struct, Insecure bool
pkg crypto/tls, type CipherSuite struct, Name string
pkg crypto/tls, type CipherSuite struct, SupportedVersions []uint16
pkg debug/dwarf, const AttrAddrBase = 115
pkg debug/dwarf, const AttrAddrBase Attr
pkg debug/dwarf, const AttrAlignment = 136
pkg debug/dwarf, const AttrAlignment Attr
pkg debug/dwarf, const AttrBinaryScale = 91
pkg debug/dwarf, const AttrBinaryScale Attr
pkg debug/dwarf, const AttrCallAllCalls = 122
pkg debug/dwarf, const AttrCallAllCalls Attr
pkg debug/dwarf, const AttrCallAllSourceCalls = 123
pkg debug/dwarf, const AttrCallAllSourceCalls Attr
pkg debug/dwarf, const AttrCallAllTailCalls = 124
pkg debug/dwarf, const AttrCallAllTailCalls Attr
pkg debug/dwarf, const AttrCallDataLocation = 133
pkg debug/dwarf, const AttrCallDataLocation Attr
pkg debug/dwarf, const AttrCallDataValue = 134
pkg debug/dwarf, const AttrCallDataValue Attr
pkg debug/dwarf, const AttrCallOrigin = 127
pkg debug/dwarf, const AttrCallOrigin Attr
pkg debug/dwarf, const AttrCallPC = 129
pkg debug/dwarf, const AttrCallPC Attr
pkg debug/dwarf, const AttrCallParameter = 128
pkg debug/dwarf, const AttrCallParameter Attr
pkg debug/dwarf, const AttrCallReturnPC = 125
pkg debug/dwarf, const AttrCallReturnPC Attr
pkg debug/dwarf, const AttrCallTailCall = 130
pkg debug/dwarf, const AttrCallTailCall Attr
pkg debug/dwarf, const AttrCallTarget = 131
pkg debug/dwarf, const AttrCallTarget Attr
pkg debug/dwarf, const AttrCallTargetClobbered = 132
pkg debug/dwarf, const AttrCallTargetClobbered Attr
pkg debug/dwarf, const AttrCallValue = 126
pkg debug/dwarf, const AttrCallValue Attr
pkg debug/dwarf, const AttrConstExpr = 108
pkg debug/dwarf, const AttrConstExpr Attr
pkg debug/dwarf, const AttrDataBitOffset = 107
pkg debug/dwarf, const AttrDataBitOffset Attr
pkg debug/dwarf, const AttrDecimalScale = 92
pkg debug/dwarf, const AttrDecimalScale Attr
pkg debug/dwarf, const AttrDecimalSign = 94
pkg debug/dwarf, const AttrDecimalSign Attr
pkg debug/dwarf, const AttrDefaulted = 139
pkg debug/dwarf, const AttrDefaulted Attr
pkg debug/dwarf, const AttrDeleted = 138
pkg debug/dwarf, const AttrDeleted Attr
pkg debug/dwarf, const AttrDigitCount = 95
pkg debug/dwarf, const AttrDigitCount Attr
pkg debug/dwarf, const AttrDwoName = 118
pkg debug/dwarf, const AttrDwoName Attr
pkg debug/dwarf, const AttrElemental = 102
pkg debug/dwarf, const AttrElemental Attr
pkg debug/dwarf, const AttrEndianity = 101
pkg debug/dwarf, const AttrEndianity Attr
pkg debug/dwarf, const AttrEnumClass = 109
pkg debug/dwarf, const AttrEnumClass Attr
pkg debug/dwarf, const AttrExplicit = 99
pkg debug/dwarf, const AttrExplicit Attr
pkg debug/dwarf, const AttrExportSymbols = 137
pkg debug/dwarf, const AttrExportSymbols Attr
pkg debug/dwarf, const AttrLinkageName = 110
pkg debug/dwarf, const AttrLinkageName Attr
pkg debug/dwarf, const AttrLoclistsBase = 140
pkg debug/dwarf, const AttrLoclistsBase Attr
pkg debug/dwarf, const AttrMacros = 121
pkg debug/dwarf, const AttrMacros Attr
pkg debug/dwarf, const AttrMainSubprogram = 106
pkg debug/dwarf, const AttrMainSubprogram Attr
pkg debug/dwarf, const AttrMutable = 97
pkg debug/dwarf, const AttrMutable Attr
pkg debug/dwarf, const AttrNoreturn = 135
pkg debug/dwarf, const AttrNoreturn Attr
pkg debug/dwarf, const AttrObjectPointer = 100
pkg debug/dwarf, const AttrObjectPointer Attr
pkg debug/dwarf, const AttrPictureString = 96
pkg debug/dwarf, const AttrPictureString Attr
pkg debug/dwarf, const AttrPure = 103
pkg debug/dwarf, const AttrPure Attr
pkg debug/dwarf, const AttrRank = 113
pkg debug/dwarf, const AttrRank Attr
pkg debug/dwarf, const AttrRecursive = 104
pkg debug/dwarf, const AttrRecursive Attr
pkg debug/dwarf, const AttrReference = 119
pkg debug/dwarf, const AttrReference Attr
pkg debug/dwarf, const AttrRnglistsBase = 116
pkg debug/dwarf, const AttrRnglistsBase Attr
pkg debug/dwarf, const AttrRvalueReference = 120
pkg debug/dwarf, const AttrRvalueReference Attr
pkg debug/dwarf, const AttrSignature = 105
pkg debug/dwarf, const AttrSignature Attr
pkg debug/dwarf, const AttrSmall = 93
pkg debug/dwarf, const AttrSmall Attr
pkg debug/dwarf, const AttrStrOffsetsBase = 114
pkg debug/dwarf, const AttrStrOffsetsBase Attr
pkg debug/dwarf, const AttrStringLengthBitSize = 111
pkg debug/dwarf, const AttrStringLengthBitSize Attr
pkg debug/dwarf, const AttrStringLengthByteSize = 112
pkg debug/dwarf, const AttrStringLengthByteSize Attr
pkg debug/dwarf, const AttrThreadsScaled = 98
pkg debug/dwarf, const AttrThreadsScaled Attr
pkg debug/dwarf, const ClassAddrPtr = 15
pkg debug/dwarf, const ClassAddrPtr Class
pkg debug/dwarf, const ClassLocList = 16
pkg debug/dwarf, const ClassLocList Class
pkg debug/dwarf, const ClassRngList = 17
pkg debug/dwarf, const ClassRngList Class
pkg debug/dwarf, const ClassRngListsPtr = 18
pkg debug/dwarf, const ClassRngListsPtr Class
pkg debug/dwarf, const ClassStrOffsetsPtr = 19
pkg debug/dwarf, const ClassStrOffsetsPtr Class
pkg debug/dwarf, const TagAtomicType = 71
pkg debug/dwarf, const TagAtomicType Tag
pkg debug/dwarf, const TagCallSite = 72
pkg debug/dwarf, const TagCallSite Tag
pkg debug/dwarf, const TagCallSiteParameter = 73
pkg debug/dwarf, const TagCallSiteParameter Tag
pkg debug/dwarf, const TagCoarrayType = 68
pkg debug/dwarf, const TagCoarrayType Tag
pkg debug/dwarf, const TagDynamicType = 70
pkg debug/dwarf, const TagDynamicType Tag
pkg debug/dwarf, const TagGenericSubrange = 69
pkg debug/dwarf, const TagGenericSubrange Tag
pkg debug/dwarf, const TagImmutableType = 75
pkg debug/dwarf, const TagImmutableType Tag
pkg debug/dwarf, const TagSkeletonUnit = 74
pkg debug/dwarf, const TagSkeletonUnit Tag
pkg debug/dwarf, method (*Data) AddSection(string, []uint8) error
pkg debug/dwarf, method (*LineReader) Files() []*LineFile
pkg debug/dwarf, method (*Reader) ByteOrder() binary.ByteOrder
pkg encoding/asn1, const TagBMPString = 30
pkg encoding/asn1, const TagBMPString ideal-int
pkg encoding/json, method (*Decoder) InputOffset() int64
pkg go/build, type Context struct, Dir string
pkg go/doc, func NewFromFiles(*token.FileSet, []*ast.File, string, ...interface{}) (*Package, error)
pkg go/doc, type Example struct, Suffix string
pkg go/doc, type Func struct, Examples []*Example
pkg go/doc, type Package struct, Examples []*Example
pkg go/doc, type Type struct, Examples []*Example
pkg hash/maphash, func MakeSeed() Seed
pkg hash/maphash, method (*Hash) BlockSize() int
pkg hash/maphash, method (*Hash) Reset()
pkg hash/maphash, method (*Hash) Seed() Seed
pkg hash/maphash, method (*Hash) SetSeed(Seed)
pkg hash/maphash, method (*Hash) Size() int
pkg hash/maphash, method (*Hash) Sum([]uint8) []uint8
pkg hash/maphash, method (*Hash) Sum64() uint64
pkg hash/maphash, method (*Hash) Write([]uint8) (int, error)
pkg hash/maphash, method (*Hash) WriteByte(uint8) error
pkg hash/maphash, method (*Hash) WriteString(string) (int, error)
pkg hash/maphash, type Hash struct
pkg hash/maphash, type Seed struct
pkg log, const Lmsgprefix = 64
pkg log, const Lmsgprefix ideal-int
pkg math, func FMA(float64, float64, float64) float64
pkg math/bits, func Rem(uint, uint, uint) uint
pkg math/bits, func Rem32(uint32, uint32, uint32) uint32
pkg math/bits, func Rem64(uint64, uint64, uint64) uint64
pkg mime/multipart, method (*Reader) NextRawPart() (*Part, error)
pkg net/http, method (Header) Values(string) []string
pkg net/http, type Transport struct, DialTLSContext func(context.Context, string, string) (net.Conn, error)
pkg net/http/httptest, type Server struct, EnableHTTP2 bool
pkg net/textproto, method (MIMEHeader) Values(string) []string
pkg strconv, method (*NumError) Unwrap() error
pkg syscall (windows-386), const CTRL_CLOSE_EVENT = 2
pkg syscall (windows-386), const CTRL_CLOSE_EVENT ideal-int
pkg syscall (windows-386), const CTRL_LOGOFF_EVENT = 5
pkg syscall (windows-386), const CTRL_LOGOFF_EVENT ideal-int
pkg syscall (windows-386), const CTRL_SHUTDOWN_EVENT = 6
pkg syscall (windows-386), const CTRL_SHUTDOWN_EVENT ideal-int
pkg syscall (windows-amd64), const CTRL_CLOSE_EVENT = 2
pkg syscall (windows-amd64), const CTRL_CLOSE_EVENT ideal-int
pkg syscall (windows-amd64), const CTRL_LOGOFF_EVENT = 5
pkg syscall (windows-amd64), const CTRL_LOGOFF_EVENT ideal-int
pkg syscall (windows-amd64), const CTRL_SHUTDOWN_EVENT = 6
pkg syscall (windows-amd64), const CTRL_SHUTDOWN_EVENT ideal-int
pkg testing, method (*B) Cleanup(func())
pkg testing, method (*T) Cleanup(func())
pkg testing, type TB interface, Cleanup(func())
pkg unicode, const Version = "12.0.0"
pkg unicode, var Elymaic *RangeTable
pkg unicode, var Nandinagari *RangeTable
pkg unicode, var Nyiakeng_Puachue_Hmong *RangeTable
pkg unicode, var Wancho *RangeTable

View File

@@ -1,130 +0,0 @@
pkg bufio, var ErrBadReadCount error
pkg crypto, method (Hash) String() string
pkg crypto/ecdsa, func SignASN1(io.Reader, *PrivateKey, []uint8) ([]uint8, error)
pkg crypto/ecdsa, func VerifyASN1(*PublicKey, []uint8, []uint8) bool
pkg crypto/ecdsa, method (*PrivateKey) Equal(crypto.PrivateKey) bool
pkg crypto/ecdsa, method (*PublicKey) Equal(crypto.PublicKey) bool
pkg crypto/ed25519, method (PrivateKey) Equal(crypto.PrivateKey) bool
pkg crypto/ed25519, method (PublicKey) Equal(crypto.PublicKey) bool
pkg crypto/elliptic, func MarshalCompressed(Curve, *big.Int, *big.Int) []uint8
pkg crypto/elliptic, func UnmarshalCompressed(Curve, []uint8) (*big.Int, *big.Int)
pkg crypto/rsa, method (*PrivateKey) Equal(crypto.PrivateKey) bool
pkg crypto/rsa, method (*PublicKey) Equal(crypto.PublicKey) bool
pkg crypto/tls, method (*Dialer) Dial(string, string) (net.Conn, error)
pkg crypto/tls, method (*Dialer) DialContext(context.Context, string, string) (net.Conn, error)
pkg crypto/tls, method (ClientAuthType) String() string
pkg crypto/tls, method (CurveID) String() string
pkg crypto/tls, method (SignatureScheme) String() string
pkg crypto/tls, type Config struct, VerifyConnection func(ConnectionState) error
pkg crypto/tls, type Dialer struct
pkg crypto/tls, type Dialer struct, Config *Config
pkg crypto/tls, type Dialer struct, NetDialer *net.Dialer
pkg crypto/x509, func CreateRevocationList(io.Reader, *RevocationList, *Certificate, crypto.Signer) ([]uint8, error)
pkg crypto/x509, type RevocationList struct
pkg crypto/x509, type RevocationList struct, ExtraExtensions []pkix.Extension
pkg crypto/x509, type RevocationList struct, NextUpdate time.Time
pkg crypto/x509, type RevocationList struct, Number *big.Int
pkg crypto/x509, type RevocationList struct, RevokedCertificates []pkix.RevokedCertificate
pkg crypto/x509, type RevocationList struct, SignatureAlgorithm SignatureAlgorithm
pkg crypto/x509, type RevocationList struct, ThisUpdate time.Time
pkg database/sql, method (*DB) SetConnMaxIdleTime(time.Duration)
pkg database/sql, method (*Row) Err() error
pkg database/sql, type DBStats struct, MaxIdleTimeClosed int64
pkg database/sql/driver, type Validator interface { IsValid }
pkg database/sql/driver, type Validator interface, IsValid() bool
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_APPCONTAINER = 4096
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_APPCONTAINER ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE = 64
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY = 128
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_GUARD_CF = 16384
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_GUARD_CF ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA = 32
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_NO_BIND = 2048
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_NO_BIND ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_NO_ISOLATION = 512
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_NO_ISOLATION ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_NO_SEH = 1024
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_NO_SEH ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_NX_COMPAT = 256
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_NX_COMPAT ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE = 32768
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE ideal-int
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_WDM_DRIVER = 8192
pkg debug/pe, const IMAGE_DLLCHARACTERISTICS_WDM_DRIVER ideal-int
pkg debug/pe, const IMAGE_FILE_32BIT_MACHINE = 256
pkg debug/pe, const IMAGE_FILE_32BIT_MACHINE ideal-int
pkg debug/pe, const IMAGE_FILE_AGGRESIVE_WS_TRIM = 16
pkg debug/pe, const IMAGE_FILE_AGGRESIVE_WS_TRIM ideal-int
pkg debug/pe, const IMAGE_FILE_BYTES_REVERSED_HI = 32768
pkg debug/pe, const IMAGE_FILE_BYTES_REVERSED_HI ideal-int
pkg debug/pe, const IMAGE_FILE_BYTES_REVERSED_LO = 128
pkg debug/pe, const IMAGE_FILE_BYTES_REVERSED_LO ideal-int
pkg debug/pe, const IMAGE_FILE_DEBUG_STRIPPED = 512
pkg debug/pe, const IMAGE_FILE_DEBUG_STRIPPED ideal-int
pkg debug/pe, const IMAGE_FILE_DLL = 8192
pkg debug/pe, const IMAGE_FILE_DLL ideal-int
pkg debug/pe, const IMAGE_FILE_EXECUTABLE_IMAGE = 2
pkg debug/pe, const IMAGE_FILE_EXECUTABLE_IMAGE ideal-int
pkg debug/pe, const IMAGE_FILE_LARGE_ADDRESS_AWARE = 32
pkg debug/pe, const IMAGE_FILE_LARGE_ADDRESS_AWARE ideal-int
pkg debug/pe, const IMAGE_FILE_LINE_NUMS_STRIPPED = 4
pkg debug/pe, const IMAGE_FILE_LINE_NUMS_STRIPPED ideal-int
pkg debug/pe, const IMAGE_FILE_LOCAL_SYMS_STRIPPED = 8
pkg debug/pe, const IMAGE_FILE_LOCAL_SYMS_STRIPPED ideal-int
pkg debug/pe, const IMAGE_FILE_NET_RUN_FROM_SWAP = 2048
pkg debug/pe, const IMAGE_FILE_NET_RUN_FROM_SWAP ideal-int
pkg debug/pe, const IMAGE_FILE_RELOCS_STRIPPED = 1
pkg debug/pe, const IMAGE_FILE_RELOCS_STRIPPED ideal-int
pkg debug/pe, const IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP = 1024
pkg debug/pe, const IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP ideal-int
pkg debug/pe, const IMAGE_FILE_SYSTEM = 4096
pkg debug/pe, const IMAGE_FILE_SYSTEM ideal-int
pkg debug/pe, const IMAGE_FILE_UP_SYSTEM_ONLY = 16384
pkg debug/pe, const IMAGE_FILE_UP_SYSTEM_ONLY ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_EFI_APPLICATION = 10
pkg debug/pe, const IMAGE_SUBSYSTEM_EFI_APPLICATION ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER = 11
pkg debug/pe, const IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_EFI_ROM = 13
pkg debug/pe, const IMAGE_SUBSYSTEM_EFI_ROM ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER = 12
pkg debug/pe, const IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_NATIVE = 1
pkg debug/pe, const IMAGE_SUBSYSTEM_NATIVE ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_NATIVE_WINDOWS = 8
pkg debug/pe, const IMAGE_SUBSYSTEM_NATIVE_WINDOWS ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_OS2_CUI = 5
pkg debug/pe, const IMAGE_SUBSYSTEM_OS2_CUI ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_POSIX_CUI = 7
pkg debug/pe, const IMAGE_SUBSYSTEM_POSIX_CUI ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_UNKNOWN = 0
pkg debug/pe, const IMAGE_SUBSYSTEM_UNKNOWN ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION = 16
pkg debug/pe, const IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_WINDOWS_CE_GUI = 9
pkg debug/pe, const IMAGE_SUBSYSTEM_WINDOWS_CE_GUI ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_WINDOWS_CUI = 3
pkg debug/pe, const IMAGE_SUBSYSTEM_WINDOWS_CUI ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_WINDOWS_GUI = 2
pkg debug/pe, const IMAGE_SUBSYSTEM_WINDOWS_GUI ideal-int
pkg debug/pe, const IMAGE_SUBSYSTEM_XBOX = 14
pkg debug/pe, const IMAGE_SUBSYSTEM_XBOX ideal-int
pkg math/big, method (*Int) FillBytes([]uint8) []uint8
pkg net, method (*Resolver) LookupIP(context.Context, string, string) ([]IP, error)
pkg net/url, method (*URL) EscapedFragment() string
pkg net/url, method (*URL) Redacted() string
pkg net/url, type URL struct, RawFragment string
pkg os, method (*File) ReadFrom(io.Reader) (int64, error)
pkg os, var ErrDeadlineExceeded error
pkg regexp, method (*Regexp) SubexpIndex(string) int
pkg strconv, func FormatComplex(complex128, uint8, int, int) string
pkg strconv, func ParseComplex(string, int) (complex128, error)
pkg sync, method (*Map) LoadAndDelete(interface{}) (interface{}, bool)
pkg testing, method (*B) TempDir() string
pkg testing, method (*T) Deadline() (time.Time, bool)
pkg testing, method (*T) TempDir() string
pkg testing, type TB interface, TempDir() string
pkg time, method (*Ticker) Reset(Duration)

View File

@@ -1,19 +0,0 @@
pkg unicode, const Version = "13.0.0"
pkg unicode, var Chorasmian *RangeTable
pkg unicode, var Dives_Akuru *RangeTable
pkg unicode, var Khitan_Small_Script *RangeTable
pkg unicode, var Yezidi *RangeTable
pkg text/template/parse, const NodeComment = 20
pkg text/template/parse, const NodeComment NodeType
pkg text/template/parse, const ParseComments = 1
pkg text/template/parse, const ParseComments Mode
pkg text/template/parse, method (*CommentNode) Copy() Node
pkg text/template/parse, method (*CommentNode) String() string
pkg text/template/parse, method (CommentNode) Position() Pos
pkg text/template/parse, method (CommentNode) Type() NodeType
pkg text/template/parse, type CommentNode struct
pkg text/template/parse, type CommentNode struct, Text string
pkg text/template/parse, type CommentNode struct, embedded NodeType
pkg text/template/parse, type CommentNode struct, embedded Pos
pkg text/template/parse, type Mode uint
pkg text/template/parse, type Tree struct, Mode Mode

View File

@@ -74,7 +74,7 @@ important, the use of the tool itself.</p>
<p>The <code>go</code> command requires that code adheres to a few key,
well-established conventions.</p>
<p>First, the import path is derived in a known way from the URL of the
<p>First, the import path is derived in an known way from the URL of the
source code. For Bitbucket, GitHub, Google Code, and Launchpad, the
root directory of the repository is identified by the repository's
main URL, without the <code>http://</code> prefix. Subdirectories are named by
@@ -134,7 +134,7 @@ be able to adapt to changing build environments and conditions. For
example, if we allowed extra configuration such as compiler flags or
command line recipes, then that configuration would need to be updated
each time the build tools changed; it would also be inherently tied
to the use of a specific toolchain.</p>
to the use of a specific tool chain.</p>
<h2>Getting started with the go command</h2>

View File

@@ -133,11 +133,6 @@ cost of increased memory usage.
<code>halt_on_error</code> (default <code>0</code>): Controls whether the program
exits after reporting first data race.
</li>
<li>
<code>atexit_sleep_ms</code> (default <code>1000</code>): Amount of milliseconds
to sleep in the main goroutine before exiting.
</li>
</ul>
<p>
@@ -379,46 +374,11 @@ func (w *Watchdog) Start() {
}
</pre>
<h3 id="Unsynchronized_send_and_close_operations">Unsynchronized send and close operations</h3>
<p>
As this example demonstrates, unsynchronized send and close operations
on the same channel can also be a race condition:
</p>
<pre>
c := make(chan struct{}) // or buffered channel
// The race detector cannot derive the happens before relation
// for the following send and close operations. These two operations
// are unsynchronized and happen concurrently.
go func() { c <- struct{}{} }()
close(c)
</pre>
<p>
According to the Go memory model, a send on a channel happens before
the corresponding receive from that channel completes. To synchronize
send and close operations, use a receive operation that guarantees
the send is done before the close:
</p>
<pre>
c := make(chan struct{}) // or buffered channel
go func() { c <- struct{}{} }()
<-c
close(c)
</pre>
<h2 id="Supported_Systems">Supported Systems</h2>
<p>
The race detector runs on
<code>linux/amd64</code>, <code>linux/ppc64le</code>,
<code>linux/arm64</code>, <code>freebsd/amd64</code>,
<code>netbsd/amd64</code>, <code>darwin/amd64</code>,
and <code>windows/amd64</code>.
The race detector runs on <code>darwin/amd64</code>, <code>freebsd/amd64</code>,
<code>linux/amd64</code>, and <code>windows/amd64</code>.
</p>
<h2 id="Runtime_Overheads">Runtime Overhead</h2>
@@ -427,14 +387,3 @@ close(c)
The cost of race detection varies by program, but for a typical program, memory
usage may increase by 5-10x and execution time by 2-20x.
</p>
<p>
The race detector currently allocates an extra 8 bytes per <code>defer</code>
and <code>recover</code> statement. Those extra allocations <a
href="https://golang.org/issue/26813">are not recovered until the goroutine
exits</a>. This means that if you have a long-running goroutine that is
periodically issuing <code>defer</code> and <code>recover</code> calls,
the program memory usage may grow without bound. These memory allocations
will not show up in the output of <code>runtime.ReadMemStats</code> or
<code>runtime/pprof</code>.
</p>

View File

@@ -2,15 +2,12 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"errors"
"html/template"
"io/ioutil"
"log"
"net/http"
"regexp"
)
@@ -92,7 +89,7 @@ func getTitle(w http.ResponseWriter, r *http.Request) (string, error) {
m := validPath.FindStringSubmatch(r.URL.Path)
if m == nil {
http.NotFound(w, r)
return "", errors.New("invalid Page Title")
return "", errors.New("Invalid Page Title")
}
return m[2], nil // The title is the second subexpression.
}
@@ -101,5 +98,5 @@ func main() {
http.HandleFunc("/view/", viewHandler)
http.HandleFunc("/edit/", editHandler)
http.HandleFunc("/save/", saveHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -2,14 +2,11 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"html/template"
"io/ioutil"
"log"
"net/http"
)
@@ -52,5 +49,5 @@ func viewHandler(w http.ResponseWriter, r *http.Request) {
func main() {
http.HandleFunc("/view/", viewHandler)
http.HandleFunc("/edit/", editHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -2,14 +2,11 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"html/template"
"io/ioutil"
"log"
"net/http"
"regexp"
)
@@ -90,5 +87,5 @@ func main() {
http.HandleFunc("/view/", makeHandler(viewHandler))
http.HandleFunc("/edit/", makeHandler(editHandler))
http.HandleFunc("/save/", makeHandler(saveHandler))
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -2,14 +2,11 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"html/template"
"io/ioutil"
"log"
"net/http"
)
@@ -64,5 +61,5 @@ func main() {
http.HandleFunc("/view/", viewHandler)
http.HandleFunc("/edit/", editHandler)
http.HandleFunc("/save/", saveHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -0,0 +1,36 @@
*** final.go 2015-06-14 23:59:22.000000000 +0200
--- final-test.go 2015-06-15 00:15:41.000000000 +0200
***************
*** 7,12 ****
--- 7,14 ----
import (
"html/template"
"io/ioutil"
+ "log"
+ "net"
"net/http"
"regexp"
)
***************
*** 85,89 ****
http.HandleFunc("/edit/", makeHandler(editHandler))
http.HandleFunc("/save/", makeHandler(saveHandler))
! http.ListenAndServe(":8080", nil)
}
--- 87,101 ----
http.HandleFunc("/edit/", makeHandler(editHandler))
http.HandleFunc("/save/", makeHandler(saveHandler))
! l, err := net.Listen("tcp", "127.0.0.1:0")
! if err != nil {
! log.Fatal(err)
! }
! err = ioutil.WriteFile("final-test-port.txt", []byte(l.Addr().String()), 0644)
! if err != nil {
! log.Fatal(err)
! }
! s := &http.Server{}
! s.Serve(l)
! return
}

View File

@@ -2,14 +2,11 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"html/template"
"io/ioutil"
"log"
"net/http"
"regexp"
)
@@ -88,5 +85,5 @@ func main() {
http.HandleFunc("/edit/", makeHandler(editHandler))
http.HandleFunc("/save/", makeHandler(saveHandler))
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -1,24 +0,0 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"fmt"
"log"
"net"
"net/http"
)
func serve() error {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
log.Fatal(err)
}
fmt.Println(l.Addr().String())
s := &http.Server{}
return s.Serve(l)
}

63
doc/articles/wiki/get.go Normal file
View File

@@ -0,0 +1,63 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"io"
"log"
"net"
"net/http"
"os"
"strings"
"time"
)
var (
post = flag.String("post", "", "urlencoded form data to POST")
addr = flag.Bool("addr", false, "find open address and print to stdout")
wait = flag.Duration("wait_for_port", 0, "if non-zero, the amount of time to wait for the address to become available")
)
func main() {
flag.Parse()
if *addr {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
log.Fatal(err)
}
defer l.Close()
fmt.Print(l.Addr())
return
}
url := flag.Arg(0)
if url == "" {
log.Fatal("no url supplied")
}
var r *http.Response
var err error
loopUntil := time.Now().Add(*wait)
for {
if *post != "" {
b := strings.NewReader(*post)
r, err = http.Post(url, "application/x-www-form-urlencoded", b)
} else {
r, err = http.Get(url)
}
if err == nil || *wait == 0 || time.Now().After(loopUntil) {
break
}
time.Sleep(100 * time.Millisecond)
}
if err != nil {
log.Fatal(err)
}
defer r.Body.Close()
_, err = io.Copy(os.Stdout, r.Body)
if err != nil {
log.Fatal(err)
}
}

View File

@@ -1,3 +0,0 @@
module doc/articles/wiki
go 1.14

View File

@@ -1,10 +1,7 @@
// +build ignore
package main
import (
"fmt"
"log"
"net/http"
)
@@ -14,5 +11,5 @@ func handler(w http.ResponseWriter, r *http.Request) {
func main() {
http.HandleFunc("/", handler)
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -179,7 +179,7 @@ You can compile and run the program like this:
<pre>
$ go build wiki.go
$ ./wiki
This is a sample Page.
This is a sample page.
</pre>
<p>
@@ -213,12 +213,6 @@ worry about its second parameter, <code>nil</code>, for now.)
This function will block until the program is terminated.
</p>
<p>
<code>ListenAndServe</code> always returns an error, since it only returns when an
unexpected error occurs.
In order to log that error we wrap the function call with <code>log.Fatal</code>.
</p>
<p>
The function <code>handler</code> is of the type <code>http.HandlerFunc</code>.
It takes an <code>http.ResponseWriter</code> and an <code>http.Request</code> as
@@ -257,7 +251,6 @@ To use the <code>net/http</code> package, it must be imported:
import (
"fmt"
"io/ioutil"
"log"
<b>"net/http"</b>
)
</pre>
@@ -269,12 +262,6 @@ view a wiki page. It will handle URLs prefixed with "/view/".
{{code "doc/articles/wiki/part2.go" `/^func viewHandler/` `/^}/`}}
<p>
Again, note the use of <code>_</code> to ignore the <code>error</code>
return value from <code>loadPage</code>. This is done here for simplicity
and generally considered bad practice. We will attend to this later.
</p>
<p>
First, this function extracts the page title from <code>r.URL.Path</code>,
the path component of the request URL.
@@ -289,6 +276,12 @@ The function then loads the page data, formats the page with a string of simple
HTML, and writes it to <code>w</code>, the <code>http.ResponseWriter</code>.
</p>
<p>
Again, note the use of <code>_</code> to ignore the <code>error</code>
return value from <code>loadPage</code>. This is done here for simplicity
and generally considered bad practice. We will attend to this later.
</p>
<p>
To use this handler, we rewrite our <code>main</code> function to
initialize <code>http</code> using the <code>viewHandler</code> to handle
@@ -582,7 +575,7 @@ this, we can write a function to validate the title with a regular expression.
<p>
First, add <code>"regexp"</code> to the <code>import</code> list.
Then we can create a global variable to store our validation
Then we can create a global variable to store our validation
expression:
</p>
@@ -675,7 +668,7 @@ The closure returned by <code>makeHandler</code> is a function that takes
an <code>http.ResponseWriter</code> and <code>http.Request</code> (in other
words, an <code>http.HandlerFunc</code>).
The closure extracts the <code>title</code> from the request path, and
validates it with the <code>validPath</code> regexp. If the
validates it with the <code>TitleValidator</code> regexp. If the
<code>title</code> is invalid, an error will be written to the
<code>ResponseWriter</code> using the <code>http.NotFound</code> function.
If the <code>title</code> is valid, the enclosed handler function

View File

@@ -2,14 +2,11 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"fmt"
"io/ioutil"
"log"
"net/http"
)
@@ -55,5 +52,5 @@ func editHandler(w http.ResponseWriter, r *http.Request) {
func main() {
http.HandleFunc("/view/", viewHandler)
http.HandleFunc("/edit/", editHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (

View File

@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (

View File

@@ -2,14 +2,11 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"fmt"
"io/ioutil"
"log"
"net/http"
)
@@ -40,5 +37,5 @@ func viewHandler(w http.ResponseWriter, r *http.Request) {
func main() {
http.HandleFunc("/view/", viewHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -2,14 +2,11 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"html/template"
"io/ioutil"
"log"
"net/http"
)
@@ -72,5 +69,5 @@ func main() {
http.HandleFunc("/view/", viewHandler)
http.HandleFunc("/edit/", editHandler)
http.HandleFunc("/save/", saveHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

View File

@@ -2,14 +2,11 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"html/template"
"io/ioutil"
"log"
"net/http"
)
@@ -56,5 +53,5 @@ func main() {
http.HandleFunc("/view/", viewHandler)
http.HandleFunc("/edit/", editHandler)
//http.HandleFunc("/save/", saveHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
http.ListenAndServe(":8080", nil)
}

58
doc/articles/wiki/test.bash Executable file
View File

@@ -0,0 +1,58 @@
#!/usr/bin/env bash
# Copyright 2010 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
set -e
if ! which patch > /dev/null; then
echo "Skipping test; patch command not found."
exit 0
fi
wiki_pid=
cleanup() {
kill $wiki_pid
rm -f test_*.out Test.txt final-test.go final-test.bin final-test-port.txt a.out get.bin
}
trap cleanup 0 INT
rm -f get.bin final-test.bin a.out
# If called with -all, check that all code snippets compile.
if [ "$1" = "-all" ]; then
for fn in *.go; do
go build -o a.out $fn
done
fi
go build -o get.bin get.go
cp final.go final-test.go
patch final-test.go final-test.patch > /dev/null
go build -o final-test.bin final-test.go
./final-test.bin &
wiki_pid=$!
l=0
while [ ! -f ./final-test-port.txt ]
do
l=$(($l+1))
if [ "$l" -gt 5 ]
then
echo "port not available within 5 seconds"
exit 1
break
fi
sleep 1
done
addr=$(cat final-test-port.txt)
./get.bin http://$addr/edit/Test > test_edit.out
diff -u test_edit.out test_edit.good
./get.bin -post=body=some%20content http://$addr/save/Test > test_save.out
diff -u test_save.out test_view.good # should be the same as viewing
diff -u Test.txt test_Test.txt.good
./get.bin http://$addr/view/Test > test_view.out
diff -u test_view.out test_view.good
echo PASS

View File

@@ -1,165 +0,0 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main_test
import (
"bytes"
"fmt"
"io/ioutil"
"net/http"
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
)
func TestSnippetsCompile(t *testing.T) {
if testing.Short() {
t.Skip("skipping slow builds in short mode")
}
goFiles, err := filepath.Glob("*.go")
if err != nil {
t.Fatal(err)
}
for _, f := range goFiles {
if strings.HasSuffix(f, "_test.go") {
continue
}
f := f
t.Run(f, func(t *testing.T) {
t.Parallel()
cmd := exec.Command("go", "build", "-o", os.DevNull, f)
out, err := cmd.CombinedOutput()
if err != nil {
t.Errorf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, out)
}
})
}
}
func TestWikiServer(t *testing.T) {
must := func(err error) {
if err != nil {
t.Helper()
t.Fatal(err)
}
}
dir, err := ioutil.TempDir("", t.Name())
must(err)
defer os.RemoveAll(dir)
// We're testing a walkthrough example of how to write a server.
//
// That server hard-codes a port number to make the walkthrough simpler, but
// we can't assume that the hard-coded port is available on an arbitrary
// builder. So we'll patch out the hard-coded port, and replace it with a
// function that writes the server's address to stdout
// so that we can read it and know where to send the test requests.
finalGo, err := ioutil.ReadFile("final.go")
must(err)
const patchOld = `log.Fatal(http.ListenAndServe(":8080", nil))`
patched := bytes.ReplaceAll(finalGo, []byte(patchOld), []byte(`log.Fatal(serve())`))
if bytes.Equal(patched, finalGo) {
t.Fatalf("Can't patch final.go: %q not found.", patchOld)
}
must(ioutil.WriteFile(filepath.Join(dir, "final_patched.go"), patched, 0644))
// Build the server binary from the patched sources.
// The 'go' command requires that they all be in the same directory.
// final_test.go provides the implemtation for our serve function.
must(copyFile(filepath.Join(dir, "final_srv.go"), "final_test.go"))
cmd := exec.Command("go", "build",
"-o", filepath.Join(dir, "final.exe"),
filepath.Join(dir, "final_patched.go"),
filepath.Join(dir, "final_srv.go"))
out, err := cmd.CombinedOutput()
if err != nil {
t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, out)
}
// Run the server in our temporary directory so that it can
// write its content there. It also needs a couple of template files,
// and looks for them in the same directory.
must(copyFile(filepath.Join(dir, "edit.html"), "edit.html"))
must(copyFile(filepath.Join(dir, "view.html"), "view.html"))
cmd = exec.Command(filepath.Join(dir, "final.exe"))
cmd.Dir = dir
stderr := bytes.NewBuffer(nil)
cmd.Stderr = stderr
stdout, err := cmd.StdoutPipe()
must(err)
must(cmd.Start())
defer func() {
cmd.Process.Kill()
err := cmd.Wait()
if stderr.Len() > 0 {
t.Logf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, stderr)
}
}()
var addr string
if _, err := fmt.Fscanln(stdout, &addr); err != nil || addr == "" {
t.Fatalf("Failed to read server address: %v", err)
}
// The server is up and has told us its address.
// Make sure that its HTTP API works as described in the article.
r, err := http.Get(fmt.Sprintf("http://%s/edit/Test", addr))
must(err)
responseMustMatchFile(t, r, "test_edit.good")
r, err = http.Post(fmt.Sprintf("http://%s/save/Test", addr),
"application/x-www-form-urlencoded",
strings.NewReader("body=some%20content"))
must(err)
responseMustMatchFile(t, r, "test_view.good")
gotTxt, err := ioutil.ReadFile(filepath.Join(dir, "Test.txt"))
must(err)
wantTxt, err := ioutil.ReadFile("test_Test.txt.good")
must(err)
if !bytes.Equal(wantTxt, gotTxt) {
t.Fatalf("Test.txt differs from expected after posting to /save.\ngot:\n%s\nwant:\n%s", gotTxt, wantTxt)
}
r, err = http.Get(fmt.Sprintf("http://%s/view/Test", addr))
must(err)
responseMustMatchFile(t, r, "test_view.good")
}
func responseMustMatchFile(t *testing.T, r *http.Response, filename string) {
t.Helper()
defer r.Body.Close()
body, err := ioutil.ReadAll(r.Body)
if err != nil {
t.Fatal(err)
}
wantBody, err := ioutil.ReadFile(filename)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(body, wantBody) {
t.Fatalf("%v: body does not match %s.\ngot:\n%s\nwant:\n%s", r.Request.URL, filename, body, wantBody)
}
}
func copyFile(dst, src string) error {
buf, err := ioutil.ReadFile(src)
if err != nil {
return err
}
return ioutil.WriteFile(dst, buf, 0644)
}

View File

@@ -29,7 +29,7 @@ Instead, the compiler operates on a kind of semi-abstract instruction set,
and instruction selection occurs partly after code generation.
The assembler works on the semi-abstract form, so
when you see an instruction like <code>MOV</code>
what the toolchain actually generates for that operation might
what the tool chain actually generates for that operation might
not be a move instruction at all, perhaps a clear or load.
Or it might correspond exactly to the machine instruction with that name.
In general, machine-specific operations tend to appear as themselves, while more general concepts like
@@ -57,66 +57,59 @@ func main() {
println(3)
}
$ GOOS=linux GOARCH=amd64 go tool compile -S x.go # or: go build -gcflags -S x.go
"".main STEXT size=74 args=0x0 locals=0x10
0x0000 00000 (x.go:3) TEXT "".main(SB), $16-0
0x0000 00000 (x.go:3) MOVQ (TLS), CX
0x0009 00009 (x.go:3) CMPQ SP, 16(CX)
0x000d 00013 (x.go:3) JLS 67
0x000f 00015 (x.go:3) SUBQ $16, SP
0x0013 00019 (x.go:3) MOVQ BP, 8(SP)
0x0018 00024 (x.go:3) LEAQ 8(SP), BP
0x001d 00029 (x.go:3) FUNCDATA $0, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
0x001d 00029 (x.go:3) FUNCDATA $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
0x001d 00029 (x.go:3) FUNCDATA $2, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
0x001d 00029 (x.go:4) PCDATA $0, $0
0x001d 00029 (x.go:4) PCDATA $1, $0
0x001d 00029 (x.go:4) CALL runtime.printlock(SB)
0x0022 00034 (x.go:4) MOVQ $3, (SP)
0x002a 00042 (x.go:4) CALL runtime.printint(SB)
0x002f 00047 (x.go:4) CALL runtime.printnl(SB)
0x0034 00052 (x.go:4) CALL runtime.printunlock(SB)
0x0039 00057 (x.go:5) MOVQ 8(SP), BP
0x003e 00062 (x.go:5) ADDQ $16, SP
0x0042 00066 (x.go:5) RET
0x0043 00067 (x.go:5) NOP
0x0043 00067 (x.go:3) PCDATA $1, $-1
0x0043 00067 (x.go:3) PCDATA $0, $-1
0x0043 00067 (x.go:3) CALL runtime.morestack_noctxt(SB)
0x0048 00072 (x.go:3) JMP 0
--- prog list "main" ---
0000 (x.go:3) TEXT main+0(SB),$8-0
0001 (x.go:3) FUNCDATA $0,gcargs·0+0(SB)
0002 (x.go:3) FUNCDATA $1,gclocals·0+0(SB)
0003 (x.go:4) MOVQ $3,(SP)
0004 (x.go:4) PCDATA $0,$8
0005 (x.go:4) CALL ,runtime.printint+0(SB)
0006 (x.go:4) PCDATA $0,$-1
0007 (x.go:4) PCDATA $0,$0
0008 (x.go:4) CALL ,runtime.printnl+0(SB)
0009 (x.go:4) PCDATA $0,$-1
0010 (x.go:5) RET ,
...
</pre>
<p>
The <code>FUNCDATA</code> and <code>PCDATA</code> directives contain information
for use by the garbage collector; they are introduced by the compiler.
</p>
</p>
<!-- Commenting out because the feature is gone but it's popular and may come back.
<p>
To see what gets put in the binary after linking, use <code>go tool objdump</code>:
To see what gets put in the binary after linking, add the <code>-a</code> flag to the linker:
</p>
<pre>
$ go build -o x.exe x.go
$ go tool objdump -s main.main x.exe
TEXT main.main(SB) /tmp/x.go
x.go:3 0x10501c0 65488b0c2530000000 MOVQ GS:0x30, CX
x.go:3 0x10501c9 483b6110 CMPQ 0x10(CX), SP
x.go:3 0x10501cd 7634 JBE 0x1050203
x.go:3 0x10501cf 4883ec10 SUBQ $0x10, SP
x.go:3 0x10501d3 48896c2408 MOVQ BP, 0x8(SP)
x.go:3 0x10501d8 488d6c2408 LEAQ 0x8(SP), BP
x.go:4 0x10501dd e86e45fdff CALL runtime.printlock(SB)
x.go:4 0x10501e2 48c7042403000000 MOVQ $0x3, 0(SP)
x.go:4 0x10501ea e8e14cfdff CALL runtime.printint(SB)
x.go:4 0x10501ef e8ec47fdff CALL runtime.printnl(SB)
x.go:4 0x10501f4 e8d745fdff CALL runtime.printunlock(SB)
x.go:5 0x10501f9 488b6c2408 MOVQ 0x8(SP), BP
x.go:5 0x10501fe 4883c410 ADDQ $0x10, SP
x.go:5 0x1050202 c3 RET
x.go:3 0x1050203 e83882ffff CALL runtime.morestack_noctxt(SB)
x.go:3 0x1050208 ebb6 JMP main.main(SB)
$ go tool 6l -a x.6 # or: go build -ldflags -a x.go
codeblk [0x2000,0x1d059) at offset 0x1000
002000 main.main | (3) TEXT main.main+0(SB),$8
002000 65488b0c25a0080000 | (3) MOVQ 2208(GS),CX
002009 483b21 | (3) CMPQ SP,(CX)
00200c 7707 | (3) JHI ,2015
00200e e83da20100 | (3) CALL ,1c250+runtime.morestack00
002013 ebeb | (3) JMP ,2000
002015 4883ec08 | (3) SUBQ $8,SP
002019 | (3) FUNCDATA $0,main.gcargs·0+0(SB)
002019 | (3) FUNCDATA $1,main.gclocals·0+0(SB)
002019 48c7042403000000 | (4) MOVQ $3,(SP)
002021 | (4) PCDATA $0,$8
002021 e8aad20000 | (4) CALL ,f2d0+runtime.printint
002026 | (4) PCDATA $0,$-1
002026 | (4) PCDATA $0,$0
002026 e865d40000 | (4) CALL ,f490+runtime.printnl
00202b | (4) PCDATA $0,$-1
00202b 4883c408 | (5) ADDQ $8,SP
00202f c3 | (5) RET ,
...
</pre>
-->
<h3 id="constants">Constants</h3>
<p>
@@ -146,7 +139,7 @@ The exact set depends on the architecture.
<p>
There are four predeclared symbols that refer to pseudo-registers.
These are not real registers, but rather virtual registers maintained by
the toolchain, such as a frame pointer.
the tool chain, such as a frame pointer.
The set of pseudo-registers is the same for all architectures:
</p>
@@ -273,7 +266,7 @@ that assembly programming is a fraught endeavor.
</p>
<p>
In Go object files and binaries, the full name of a symbol is the
In Go object files and binaries, the full name of a symbol is the
package path followed by a period and the symbol name:
<code>fmt.Printf</code> or <code>math/rand.Int</code>.
Because the assembler's parser treats period and slash as punctuation,
@@ -437,31 +430,6 @@ This is a wrapper function and should not count as disabling <code>recover</code
(For <code>TEXT</code> items.)
This function is a closure so it uses its incoming context register.
</li>
<li>
<code>LOCAL</code> = 128
<br>
This symbol is local to the dynamic shared object.
</li>
<li>
<code>TLSBSS</code> = 256
<br>
(For <code>DATA</code> and <code>GLOBL</code> items.)
Put this data in thread local storage.
</li>
<li>
<code>NOFRAME</code> = 512
<br>
(For <code>TEXT</code> items.)
Do not insert instructions to allocate a stack frame and save/restore the return
address, even if this is not a leaf function.
Only valid on functions that declare a frame size of 0.
</li>
<li>
<code>TOPFRAME</code> = 2048
<br>
(For <code>TEXT</code> items.)
Function is the top of the call stack. Traceback should stop at this function.
</li>
</ul>
<h3 id="runtime">Runtime Coordination</h3>
@@ -517,7 +485,7 @@ even for assembly functions not called directly from Go.
At the start of the function, the arguments are assumed
to be initialized but the results are assumed uninitialized.
If the results will hold live pointers during a call instruction,
the function should start by zeroing the results and then
the function should start by zeroing the results and then
executing the pseudo-instruction <code>GO_RESULTS_INITIALIZED</code>.
This instruction records that the results are now initialized
and should be scanned during stack movement and garbage collection.
@@ -535,7 +503,7 @@ on the <code>TEXT</code> instruction.
The pointer information can also be omitted if the
function contains no call instructions.
Otherwise, the local stack frame must not contain pointers,
and the assembly must confirm this fact by executing the
and the assembly must confirm this fact by executing the
pseudo-instruction <code>NO_LOCAL_POINTERS</code>.
Because stack resizing is implemented by moving the stack,
the stack pointer may change during any function call:
@@ -615,37 +583,27 @@ Here follow some descriptions of key Go-specific details for the supported archi
<p>
The runtime pointer to the <code>g</code> structure is maintained
through the value of an otherwise unused (as far as Go is concerned) register in the MMU.
An OS-dependent macro <code>get_tls</code> is defined for the assembler if the source is
in the <code>runtime</code> package and includes a special header, <code>go_tls.h</code>:
A OS-dependent macro <code>get_tls</code> is defined for the assembler if the source includes
a special header, <code>go_asm.h</code>:
</p>
<pre>
#include "go_tls.h"
#include "go_asm.h"
</pre>
<p>
Within the runtime, the <code>get_tls</code> macro loads its argument register
with a pointer to the <code>g</code> pointer, and the <code>g</code> struct
contains the <code>m</code> pointer.
There's another special header containing the offsets for each
element of <code>g</code>, called <code>go_asm.h</code>.
The sequence to load <code>g</code> and <code>m</code> using <code>CX</code> looks like this:
</p>
<pre>
#include "go_tls.h"
#include "go_asm.h"
...
get_tls(CX)
MOVL g(CX), AX // Move g into AX.
MOVL g_m(AX), BX // Move g.m into BX.
</pre>
<p>
Note: The code above works only in the <code>runtime</code> package, while <code>go_tls.h</code> also
applies to <a href="#arm">arm</a>, <a href="#amd64">amd64</a> and amd64p32, and <code>go_asm.h</code> applies to all architectures.
</p>
<p>
Addressing modes:
</p>
@@ -687,13 +645,6 @@ MOVQ g(CX), AX // Move g into AX.
MOVQ g_m(AX), BX // Move g.m into BX.
</pre>
<p>
Register <code>BP</code> is callee-save.
The assembler automatically inserts <code>BP</code> save/restore when frame size is larger than zero.
Using <code>BP</code> as a general purpose register is allowed,
however it can interfere with sampling-based profiling.
</p>
<h3 id="arm">ARM</h3>
<p>
@@ -787,14 +738,6 @@ The other codes are <code>-&gt;</code> (arithmetic right shift),
The ARM64 port is in an experimental state.
</p>
<p>
<code>R18</code> is the "platform register", reserved on the Apple platform.
To prevent accidental misuse, the register is named <code>R18_PLATFORM</code>.
<code>R27</code> and <code>R28</code> are reserved by the compiler and linker.
<code>R29</code> is the frame pointer.
<code>R30</code> is the link register.
</p>
<p>
Instruction modifiers are appended to the instruction following a period.
The only modifiers are <code>P</code> (postincrement) and <code>W</code>
@@ -809,71 +752,32 @@ Addressing modes:
<ul>
<li>
<code>R0-&gt;16</code>
<br>
<code>R0&gt;&gt;16</code>
<br>
<code>R0&lt;&lt;16</code>
<br>
<code>R0@&gt;16</code>:
These are the same as on the 32-bit ARM.
</li>
<li>
<code>$(8&lt;&lt;12)</code>:
Left shift the immediate value <code>8</code> by <code>12</code> bits.
</li>
<li>
<code>8(R0)</code>:
Add the value of <code>R0</code> and <code>8</code>.
</li>
<li>
<code>(R2)(R0)</code>:
The location at <code>R0</code> plus <code>R2</code>.
</li>
<li>
<code>R0.UXTB</code>
<br>
<code>R0.UXTB&lt;&lt;imm</code>:
<code>UXTB</code>: extract an 8-bit value from the low-order bits of <code>R0</code> and zero-extend it to the size of <code>R0</code>.
<code>R0.UXTB&lt;&lt;imm</code>: left shift the result of <code>R0.UXTB</code> by <code>imm</code> bits.
The <code>imm</code> value can be 0, 1, 2, 3, or 4.
The other extensions include <code>UXTH</code> (16-bit), <code>UXTW</code> (32-bit), and <code>UXTX</code> (64-bit).
</li>
<li>
<code>R0.SXTB</code>
<br>
<code>R0.SXTB&lt;&lt;imm</code>:
<code>SXTB</code>: extract an 8-bit value from the low-order bits of <code>R0</code> and sign-extend it to the size of <code>R0</code>.
<code>R0.SXTB&lt;&lt;imm</code>: left shift the result of <code>R0.SXTB</code> by <code>imm</code> bits.
The <code>imm</code> value can be 0, 1, 2, 3, or 4.
The other extensions include <code>SXTH</code> (16-bit), <code>SXTW</code> (32-bit), and <code>SXTX</code> (64-bit).
</li>
<li>
<code>(R5, R6)</code>: Register pair for <code>LDAXP</code>/<code>LDP</code>/<code>LDXP</code>/<code>STLXP</code>/<code>STP</code>/<code>STP</code>.
<code>(R5, R6)</code>: Register pair for <code>LDP</code>/<code>STP</code>.
</li>
</ul>
<p>
Reference: <a href="/pkg/cmd/internal/obj/arm64">Go ARM64 Assembly Instructions Reference Manual</a>
</p>
<h3 id="ppc64">PPC64</h3>
<h3 id="ppc64">64-bit PowerPC, a.k.a. ppc64</h3>
<p>
This assembler is used by GOARCH values ppc64 and ppc64le.
The 64-bit PowerPC port is in an experimental state.
</p>
<p>
Reference: <a href="/pkg/cmd/internal/obj/ppc64">Go PPC64 Assembly Instructions Reference Manual</a>
Addressing modes:
</p>
<ul>
<li>
<code>(R5)(R6*1)</code>: The location at <code>R5</code> plus <code>R6</code>. It is a scaled
mode as on the x86, but the only scale allowed is <code>1</code>.
</li>
<li>
<code>(R5+R6)</code>: Alias for (R5)(R6*1)
</li>
</ul>
<h3 id="s390x">IBM z/Architecture, a.k.a. s390x</h3>
@@ -972,18 +876,6 @@ Addressing modes:
</ul>
<p>
The value of <code>GOMIPS</code> environment variable (<code>hardfloat</code> or
<code>softfloat</code>) is made available to assembly code by predefining either
<code>GOMIPS_hardfloat</code> or <code>GOMIPS_softfloat</code>.
</p>
<p>
The value of <code>GOMIPS64</code> environment variable (<code>hardfloat</code> or
<code>softfloat</code>) is made available to assembly code by predefining either
<code>GOMIPS64_hardfloat</code> or <code>GOMIPS64_softfloat</code>.
</p>
<h3 id="unsupported_opcodes">Unsupported opcodes</h3>
<p>

View File

@@ -18,8 +18,10 @@ underlying binary with arguments appropriate to package-level processing.
<p>
The programs can also be run as stand-alone binaries, with unmodified arguments,
using the go <code>tool</code> subcommand, such as <code>go tool cgo</code>.
For most commands this is mainly useful for debugging.
using the go <code>tool</code> subcommand, such as <code>go tool vet</code>.
This style of invocation allows, for instance, checking a single source file
rather than an entire package: <code>go tool vet myprogram.go</code> as
compared to <code>go vet mypackage</code>.
Some of the commands, such as <code>pprof</code>, are accessible only through
the go <code>tool</code> subcommand.
</p>
@@ -49,6 +51,7 @@ The <code>go</code> program manages Go source code and runs the other
commands listed here.
See the command docs for usage
details.
<br><br>
</td>
</tr>
@@ -73,7 +76,7 @@ and rewrites them to use newer ones.</td>
</tr>
<tr>
<td><a href="/cmd/gofmt/">fmt</a></td>
<td><a href="/cmd/go/">fmt</a></td>
<td>&nbsp;&nbsp;&nbsp;&nbsp;</td>
<td>Fmt formats Go packages, it is also available as an independent <a href="/cmd/gofmt/">
gofmt</a> command with more general options.</td>

683
doc/code.html Normal file
View File

@@ -0,0 +1,683 @@
<!--{
"Title": "How to Write Go Code"
}-->
<h2 id="Introduction">Introduction</h2>
<p>
This document demonstrates the development of a simple Go package and
introduces the <a href="/cmd/go/">go tool</a>, the standard way to fetch,
build, and install Go packages and commands.
</p>
<p>
The <code>go</code> tool requires you to organize your code in a specific
way. Please read this document carefully.
It explains the simplest way to get up and running with your Go installation.
</p>
<p>
A similar explanation is available as a
<a href="//www.youtube.com/watch?v=XCsL89YtqCs">screencast</a>.
</p>
<h2 id="Organization">Code organization</h2>
<h3 id="Overview">Overview</h3>
<ul>
<li>Go programmers typically keep all their Go code in a single <i>workspace</i>.</li>
<li>A workspace contains many version control <i>repositories</i>
(managed by Git, for example).</li>
<li>Each repository contains one or more <i>packages</i>.</li>
<li>Each package consists of one or more Go source files in a single directory.</li>
<li>The path to a package's directory determines its <i>import path</i>.</li>
</ul>
<p>
Note that this differs from other programming environments in which every
project has a separate workspace and workspaces are closely tied to version
control repositories.
</p>
<h3 id="Workspaces">Workspaces</h3>
<p>
A workspace is a directory hierarchy with three directories at its root:
</p>
<ul>
<li><code>src</code> contains Go source files,
<li><code>pkg</code> contains package objects, and
<li><code>bin</code> contains executable commands.
</ul>
<p>
The <code>go</code> tool builds source packages and installs the resulting
binaries to the <code>pkg</code> and <code>bin</code> directories.
</p>
<p>
The <code>src</code> subdirectory typically contains multiple version control
repositories (such as for Git or Mercurial) that track the development of one
or more source packages.
</p>
<p>
To give you an idea of how a workspace looks in practice, here's an example:
</p>
<pre>
bin/
hello # command executable
outyet # command executable
pkg/
linux_amd64/
github.com/golang/example/
stringutil.a # package object
src/
<a href="https://github.com/golang/example/">github.com/golang/example/</a>
.git/ # Git repository metadata
hello/
hello.go # command source
outyet/
main.go # command source
main_test.go # test source
stringutil/
reverse.go # package source
reverse_test.go # test source
<a href="https://golang.org/x/image/">golang.org/x/image/</a>
.git/ # Git repository metadata
bmp/
reader.go # package source
writer.go # package source
... (many more repositories and packages omitted) ...
</pre>
<p>
The tree above shows a workspace containing two repositories
(<code>example</code> and <code>image</code>).
The <code>example</code> repository contains two commands (<code>hello</code>
and <code>outyet</code>) and one library (<code>stringutil</code>).
The <code>image</code> repository contains the <code>bmp</code> package
and <a href="https://godoc.org/golang.org/x/image">several others</a>.
</p>
<p>
A typical workspace contains many source repositories containing many
packages and commands. Most Go programmers keep <i>all</i> their Go source code
and dependencies in a single workspace.
</p>
<p>
Commands and libraries are built from different kinds of source packages.
We will discuss the distinction <a href="#PackageNames">later</a>.
</p>
<h3 id="GOPATH">The <code>GOPATH</code> environment variable</h3>
<p>
The <code>GOPATH</code> environment variable specifies the location of your
workspace. It defaults to a directory named <code>go</code> inside your home directory,
so <code>$HOME/go</code> on Unix,
<code>$home/go</code> on Plan 9,
and <code>%USERPROFILE%\go</code> (usually <code>C:\Users\YourName\go</code>) on Windows.
</p>
<p>
If you would like to work in a different location, you will need to
<a href="https://golang.org/wiki/SettingGOPATH">set <code>GOPATH</code></a>
to the path to that directory.
(Another common setup is to set <code>GOPATH=$HOME</code>.)
Note that <code>GOPATH</code> must <b>not</b> be the
same path as your Go installation.
</p>
<p>
The command <code>go</code> <code>env</code> <code>GOPATH</code>
prints the effective current <code>GOPATH</code>;
it prints the default location if the environment variable is unset.
</p>
<p>
For convenience, add the workspace's <code>bin</code> subdirectory
to your <code>PATH</code>:
</p>
<pre>
$ <b>export PATH=$PATH:$(go env GOPATH)/bin</b>
</pre>
<p>
The scripts in the rest of this document use <code>$GOPATH</code>
instead of <code>$(go env GOPATH)</code> for brevity.
To make the scripts run as written
if you have not set GOPATH,
you can substitute $HOME/go in those commands
or else run:
</p>
<pre>
$ <b>export GOPATH=$(go env GOPATH)</b>
</pre>
<p>
To learn more about the <code>GOPATH</code> environment variable, see
<a href="/cmd/go/#hdr-GOPATH_environment_variable"><code>'go help gopath'</code></a>.
</p>
<p>
To use a custom workspace location,
<a href="https://golang.org/wiki/SettingGOPATH">set the <code>GOPATH</code> environment variable</a>.
</p>
<h3 id="ImportPaths">Import paths</h3>
<p>
An <i>import path</i> is a string that uniquely identifies a package.
A package's import path corresponds to its location inside a workspace
or in a remote repository (explained below).
</p>
<p>
The packages from the standard library are given short import paths such as
<code>"fmt"</code> and <code>"net/http"</code>.
For your own packages, you must choose a base path that is unlikely to
collide with future additions to the standard library or other external
libraries.
</p>
<p>
If you keep your code in a source repository somewhere, then you should use the
root of that source repository as your base path.
For instance, if you have a <a href="https://github.com/">GitHub</a> account at
<code>github.com/user</code>, that should be your base path.
</p>
<p>
Note that you don't need to publish your code to a remote repository before you
can build it. It's just a good habit to organize your code as if you will
publish it someday. In practice you can choose any arbitrary path name,
as long as it is unique to the standard library and greater Go ecosystem.
</p>
<p>
We'll use <code>github.com/user</code> as our base path. Create a directory
inside your workspace in which to keep source code:
</p>
<pre>
$ <b>mkdir -p $GOPATH/src/github.com/user</b>
</pre>
<h3 id="Command">Your first program</h3>
<p>
To compile and run a simple program, first choose a package path (we'll use
<code>github.com/user/hello</code>) and create a corresponding package directory
inside your workspace:
</p>
<pre>
$ <b>mkdir $GOPATH/src/github.com/user/hello</b>
</pre>
<p>
Next, create a file named <code>hello.go</code> inside that directory,
containing the following Go code.
</p>
<pre>
package main
import "fmt"
func main() {
fmt.Printf("Hello, world.\n")
}
</pre>
<p>
Now you can build and install that program with the <code>go</code> tool:
</p>
<pre>
$ <b>go install github.com/user/hello</b>
</pre>
<p>
Note that you can run this command from anywhere on your system. The
<code>go</code> tool finds the source code by looking for the
<code>github.com/user/hello</code> package inside the workspace specified by
<code>GOPATH</code>.
</p>
<p>
You can also omit the package path if you run <code>go install</code> from the
package directory:
</p>
<pre>
$ <b>cd $GOPATH/src/github.com/user/hello</b>
$ <b>go install</b>
</pre>
<p>
This command builds the <code>hello</code> command, producing an executable
binary. It then installs that binary to the workspace's <code>bin</code>
directory as <code>hello</code> (or, under Windows, <code>hello.exe</code>).
In our example, that will be <code>$GOPATH/bin/hello</code>, which is
<code>$HOME/go/bin/hello</code>.
</p>
<p>
The <code>go</code> tool will only print output when an error occurs, so if
these commands produce no output they have executed successfully.
</p>
<p>
You can now run the program by typing its full path at the command line:
</p>
<pre>
$ <b>$GOPATH/bin/hello</b>
Hello, world.
</pre>
<p>
Or, as you have added <code>$GOPATH/bin</code> to your <code>PATH</code>,
just type the binary name:
</p>
<pre>
$ <b>hello</b>
Hello, world.
</pre>
<p>
If you're using a source control system, now would be a good time to initialize
a repository, add the files, and commit your first change. Again, this step is
optional: you do not need to use source control to write Go code.
</p>
<pre>
$ <b>cd $GOPATH/src/github.com/user/hello</b>
$ <b>git init</b>
Initialized empty Git repository in /home/user/work/src/github.com/user/hello/.git/
$ <b>git add hello.go</b>
$ <b>git commit -m "initial commit"</b>
[master (root-commit) 0b4507d] initial commit
1 file changed, 1 insertion(+)
create mode 100644 hello.go
</pre>
<p>
Pushing the code to a remote repository is left as an exercise for the reader.
</p>
<h3 id="Library">Your first library</h3>
<p>
Let's write a library and use it from the <code>hello</code> program.
</p>
<p>
Again, the first step is to choose a package path (we'll use
<code>github.com/user/stringutil</code>) and create the package directory:
</p>
<pre>
$ <b>mkdir $GOPATH/src/github.com/user/stringutil</b>
</pre>
<p>
Next, create a file named <code>reverse.go</code> in that directory with the
following contents.
</p>
<pre>
// Package stringutil contains utility functions for working with strings.
package stringutil
// Reverse returns its argument string reversed rune-wise left to right.
func Reverse(s string) string {
r := []rune(s)
for i, j := 0, len(r)-1; i &lt; len(r)/2; i, j = i+1, j-1 {
r[i], r[j] = r[j], r[i]
}
return string(r)
}
</pre>
<p>
Now, test that the package compiles with <code>go build</code>:
</p>
<pre>
$ <b>go build github.com/user/stringutil</b>
</pre>
<p>
Or, if you are working in the package's source directory, just:
</p>
<pre>
$ <b>go build</b>
</pre>
<p>
This won't produce an output file. To do that, you must use <code>go
install</code>, which places the package object inside the <code>pkg</code>
directory of the workspace.
</p>
<p>
After confirming that the <code>stringutil</code> package builds,
modify your original <code>hello.go</code> (which is in
<code>$GOPATH/src/github.com/user/hello</code>) to use it:
</p>
<pre>
package main
import (
"fmt"
<b>"github.com/user/stringutil"</b>
)
func main() {
fmt.Printf(stringutil.Reverse("!oG ,olleH"))
}
</pre>
<p>
Whenever the <code>go</code> tool installs a package or binary, it also
installs whatever dependencies it has.
So when you install the <code>hello</code> program
</p>
<pre>
$ <b>go install github.com/user/hello</b>
</pre>
<p>
the <code>stringutil</code> package will be installed as well, automatically.
</p>
<p>
Running the new version of the program, you should see a new, reversed message:
</p>
<pre>
$ <b>hello</b>
Hello, Go!
</pre>
<p>
After the steps above, your workspace should look like this:
</p>
<pre>
bin/
hello # command executable
pkg/
linux_amd64/ # this will reflect your OS and architecture
github.com/user/
stringutil.a # package object
src/
github.com/user/
hello/
hello.go # command source
stringutil/
reverse.go # package source
</pre>
<p>
Note that <code>go install</code> placed the <code>stringutil.a</code> object
in a directory inside <code>pkg/linux_amd64</code> that mirrors its source
directory.
This is so that future invocations of the <code>go</code> tool can find the
package object and avoid recompiling the package unnecessarily.
The <code>linux_amd64</code> part is there to aid in cross-compilation,
and will reflect the operating system and architecture of your system.
</p>
<p>
Go command executables are statically linked; the package objects need not
be present to run Go programs.
</p>
<h3 id="PackageNames">Package names</h3>
<p>
The first statement in a Go source file must be
</p>
<pre>
package <i>name</i>
</pre>
<p>
where <code><i>name</i></code> is the package's default name for imports.
(All files in a package must use the same <code><i>name</i></code>.)
</p>
<p>
Go's convention is that the package name is the last element of the
import path: the package imported as "<code>crypto/rot13</code>"
should be named <code>rot13</code>.
</p>
<p>
Executable commands must always use <code>package main</code>.
</p>
<p>
There is no requirement that package names be unique
across all packages linked into a single binary,
only that the import paths (their full file names) be unique.
</p>
<p>
See <a href="/doc/effective_go.html#names">Effective Go</a> to learn more about
Go's naming conventions.
</p>
<h2 id="Testing">Testing</h2>
<p>
Go has a lightweight test framework composed of the <code>go test</code>
command and the <code>testing</code> package.
</p>
<p>
You write a test by creating a file with a name ending in <code>_test.go</code>
that contains functions named <code>TestXXX</code> with signature
<code>func (t *testing.T)</code>.
The test framework runs each such function;
if the function calls a failure function such as <code>t.Error</code> or
<code>t.Fail</code>, the test is considered to have failed.
</p>
<p>
Add a test to the <code>stringutil</code> package by creating the file
<code>$GOPATH/src/github.com/user/stringutil/reverse_test.go</code> containing
the following Go code.
</p>
<pre>
package stringutil
import "testing"
func TestReverse(t *testing.T) {
cases := []struct {
in, want string
}{
{"Hello, world", "dlrow ,olleH"},
{"Hello, 世界", "界世 ,olleH"},
{"", ""},
}
for _, c := range cases {
got := Reverse(c.in)
if got != c.want {
t.Errorf("Reverse(%q) == %q, want %q", c.in, got, c.want)
}
}
}
</pre>
<p>
Then run the test with <code>go test</code>:
</p>
<pre>
$ <b>go test github.com/user/stringutil</b>
ok github.com/user/stringutil 0.165s
</pre>
<p>
As always, if you are running the <code>go</code> tool from the package
directory, you can omit the package path:
</p>
<pre>
$ <b>go test</b>
ok github.com/user/stringutil 0.165s
</pre>
<p>
Run <code><a href="/cmd/go/#hdr-Test_packages">go help test</a></code> and see the
<a href="/pkg/testing/">testing package documentation</a> for more detail.
</p>
<h2 id="remote">Remote packages</h2>
<p>
An import path can describe how to obtain the package source code using a
revision control system such as Git or Mercurial. The <code>go</code> tool uses
this property to automatically fetch packages from remote repositories.
For instance, the examples described in this document are also kept in a
Git repository hosted at GitHub
<code><a href="https://github.com/golang/example">github.com/golang/example</a></code>.
If you include the repository URL in the package's import path,
<code>go get</code> will fetch, build, and install it automatically:
</p>
<pre>
$ <b>go get github.com/golang/example/hello</b>
$ <b>$GOPATH/bin/hello</b>
Hello, Go examples!
</pre>
<p>
If the specified package is not present in a workspace, <code>go get</code>
will place it inside the first workspace specified by <code>GOPATH</code>.
(If the package does already exist, <code>go get</code> skips the remote
fetch and behaves the same as <code>go install</code>.)
</p>
<p>
After issuing the above <code>go get</code> command, the workspace directory
tree should now look like this:
</p>
<pre>
bin/
hello # command executable
pkg/
linux_amd64/
github.com/golang/example/
stringutil.a # package object
github.com/user/
stringutil.a # package object
src/
github.com/golang/example/
.git/ # Git repository metadata
hello/
hello.go # command source
stringutil/
reverse.go # package source
reverse_test.go # test source
github.com/user/
hello/
hello.go # command source
stringutil/
reverse.go # package source
reverse_test.go # test source
</pre>
<p>
The <code>hello</code> command hosted at GitHub depends on the
<code>stringutil</code> package within the same repository. The imports in
<code>hello.go</code> file use the same import path convention, so the
<code>go get</code> command is able to locate and install the dependent
package, too.
</p>
<pre>
import "github.com/golang/example/stringutil"
</pre>
<p>
This convention is the easiest way to make your Go packages available for
others to use.
The <a href="//golang.org/wiki/Projects">Go Wiki</a>
and <a href="//godoc.org/">godoc.org</a>
provide lists of external Go projects.
</p>
<p>
For more information on using remote repositories with the <code>go</code> tool, see
<code><a href="/cmd/go/#hdr-Remote_import_paths">go help importpath</a></code>.
</p>
<h2 id="next">What's next</h2>
<p>
Subscribe to the
<a href="//groups.google.com/group/golang-announce">golang-announce</a>
mailing list to be notified when a new stable version of Go is released.
</p>
<p>
See <a href="/doc/effective_go.html">Effective Go</a> for tips on writing
clear, idiomatic Go code.
</p>
<p>
Take <a href="//tour.golang.org/">A Tour of Go</a> to learn the language
proper.
</p>
<p>
Visit the <a href="/doc/#articles">documentation page</a> for a set of in-depth
articles about the Go language and its libraries and tools.
</p>
<h2 id="help">Getting help</h2>
<p>
For real-time help, ask the helpful gophers in <code>#go-nuts</code> on the
<a href="http://freenode.net/">Freenode</a> IRC server.
</p>
<p>
The official mailing list for discussion of the Go language is
<a href="//groups.google.com/group/golang-nuts">Go Nuts</a>.
</p>
<p>
Report bugs using the
<a href="//golang.org/issue">Go issue tracker</a>.
</p>

View File

@@ -276,7 +276,7 @@ CodewalkViewer.prototype.changeSelectedComment = function(target) {
}
// Force original file even if user hasn't changed comments since they may
// have navigated away from it within the iframe without us knowing.
// have nagivated away from it within the iframe without us knowing.
this.navigateToCode(currentFile);
};

View File

@@ -1,52 +0,0 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main_test
import (
"bytes"
"os"
"os/exec"
"strings"
"testing"
)
// TestMarkov tests the code dependency of markov.xml.
func TestMarkov(t *testing.T) {
cmd := exec.Command("go", "run", "markov.go")
cmd.Stdin = strings.NewReader("foo")
cmd.Stderr = bytes.NewBuffer(nil)
out, err := cmd.Output()
if err != nil {
t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, cmd.Stderr)
}
if !bytes.Equal(out, []byte("foo\n")) {
t.Fatalf(`%s with input "foo" did not output "foo":\n%s`, strings.Join(cmd.Args, " "), out)
}
}
// TestPig tests the code dependency of functions.xml.
func TestPig(t *testing.T) {
cmd := exec.Command("go", "run", "pig.go")
cmd.Stderr = bytes.NewBuffer(nil)
out, err := cmd.Output()
if err != nil {
t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, cmd.Stderr)
}
const want = "Wins, losses staying at k = 100: 210/990 (21.2%), 780/990 (78.8%)\n"
if !bytes.Contains(out, []byte(want)) {
t.Fatalf(`%s: unexpected output\ngot:\n%s\nwant output containing:\n%s`, strings.Join(cmd.Args, " "), out, want)
}
}
// TestURLPoll tests the code dependency of sharemem.xml.
func TestURLPoll(t *testing.T) {
cmd := exec.Command("go", "build", "-o", os.DevNull, "urlpoll.go")
out, err := cmd.CombinedOutput()
if err != nil {
t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, out)
}
}

21
doc/codewalk/run Executable file
View File

@@ -0,0 +1,21 @@
#!/usr/bin/env bash
# Copyright 2013 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
set -e
function fail {
echo FAIL: doc/codewalk/$1
exit 1
}
# markov.xml
echo foo | go run markov.go | grep foo > /dev/null || fail markov
# functions.xml
go run pig.go | grep 'Wins, losses staying at k = 100: 210/990 (21.2%), 780/990 (78.8%)' > /dev/null || fail pig
# sharemem.xml: only build the example, as it uses the network
go build urlpoll.go || fail urlpoll
rm -f urlpoll

260
doc/conduct.html Normal file
View File

@@ -0,0 +1,260 @@
<!--{
"Title": "Go Community Code of Conduct",
"Path": "/conduct",
"Template": true
}-->
<style>
ul {
max-width: 800px;
}
ul ul {
margin: 0 0 5px;
}
</style>
<h2 id="about">About the Code of Conduct</h2>
<h3 id="why">Why have a Code of Conduct?</h3>
<p>
Online communities include people from many different backgrounds.
The Go contributors are committed to providing a friendly, safe and welcoming
environment for all, regardless of age, disability, gender, nationality,
ethnicity, religion, sexuality, or similar personal characteristic.
</p>
<p>
The first goal of the Code of Conduct is to specify a baseline standard
of behavior so that people with different social values and communication
styles can talk about Go effectively, productively, and respectfully.
</p>
<p>
The second goal is to provide a mechanism for resolving conflicts in the
community when they arise.
</p>
<p>
The third goal of the Code of Conduct is to make our community welcoming to
people from different backgrounds.
Diversity is critical to the project; for Go to be successful, it needs
contributors and users from all backgrounds.
(See <a href="https://blog.golang.org/open-source">Go, Open Source, Community</a>.)
</p>
<p>
With that said, a healthy community must allow for disagreement and debate.
The Code of Conduct is not a mechanism for people to silence others with whom
they disagree.
</p>
<h3 id="spaces">Where does the Code of Conduct apply?</h3>
<p>
If you participate in or contribute to the Go ecosystem in any way,
you are encouraged to follow the Code of Conduct while doing so.
</p>
<p>
Explicit enforcement of the Code of Conduct applies to the
official forums operated by the Go project (“Go spaces”):
</p>
<ul>
<li>The official <a href="https://github.com/golang/">GitHub projects</a>
and <a href="https://go-review.googlesource.com/">code reviews</a>.
<li>The <a href="https://groups.google.com/group/golang-nuts">golang-nuts</a> and
<a href="https://groups.google.com/group/golang-dev">golang-dev</a> mailing lists.
<li>The #go-nuts IRC channel on Freenode.
</ul>
<p>
Other Go groups (such as conferences, meetups, and other unofficial forums) are
encouraged to adopt this Code of Conduct. Those groups must provide their own
moderators and/or working group (see below).
</p>
<h2 id="values">Gopher values</h2>
<p>
These are the values to which people in the Go community (“Gophers”) should aspire.
</p>
<ul>
<li>Be friendly and welcoming
<li>Be patient
<ul>
<li>Remember that people have varying communication styles and that not
everyone is using their native language.
(Meaning and tone can be lost in translation.)
</ul>
<li>Be thoughtful
<ul>
<li>Productive communication requires effort.
Think about how your words will be interpreted.
<li>Remember that sometimes it is best to refrain entirely from commenting.
</ul>
<li>Be respectful
<ul>
<li>In particular, respect differences of opinion.
</ul>
<li>Be charitable
<ul>
<li>Interpret the arguments of others in good faith, do not seek to disagree.
<li>When we do disagree, try to understand why.
</ul>
<li>Avoid destructive behavior:
<ul>
<li>Derailing: stay on topic; if you want to talk about something else,
start a new conversation.
<li>Unconstructive criticism: don't merely decry the current state of affairs;
offer—or at least solicit—suggestions as to how things may be improved.
<li>Snarking (pithy, unproductive, sniping comments)
<li>Discussing potentially offensive or sensitive issues;
this all too often leads to unnecessary conflict.
<li>Microaggressions: brief and commonplace verbal, behavioral and
environmental indignities that communicate hostile, derogatory or negative
slights and insults to a person or group.
</ul>
</ul>
<p>
People are complicated.
You should expect to be misunderstood and to misunderstand others;
when this inevitably occurs, resist the urge to be defensive or assign blame.
Try not to take offense where no offense was intended.
Give people the benefit of the doubt.
Even if the intent was to provoke, do not rise to it.
It is the responsibility of <i>all parties</i> to de-escalate conflict when it arises.
</p>
<h2 id="unwelcome_behavior">Unwelcome behavior</h2>
<p>
These actions are explicitly forbidden in Go spaces:
</p>
<ul>
<li>Insulting, demeaning, hateful, or threatening remarks.
<li>Discrimination based on age, disability, gender, nationality, race,
religion, sexuality, or similar personal characteristic.
<li>Bullying or systematic harassment.
<li>Unwelcome sexual advances.
<li>Incitement to any of these.
</ul>
<h2 id="moderation">Moderation</h2>
<p>
The Go spaces are not free speech venues; they are for discussion about Go.
Each of these spaces have their own moderators.
</p>
<p>
When using the official Go spaces you should act in the spirit of the “Gopher
values”.
If a reported conflict cannot be resolved amicably, the CoC Working Group
may make a recommendation to the relevant forum moderators.
</p>
<p>
CoC Working Group members and forum moderators are held to a higher standard than other community members.
If a working group member or moderator creates an inappropriate situation, they
should expect less leeway than others, and should expect to be removed from
their position if they cannot adhere to the CoC.
</p>
<p>
Complaints about working group member or moderator actions must be handled
using the reporting process below.
</p>
<h2 id="reporting">Reporting issues</h2>
<p>
The Code of Conduct Working Group is a group of people that represent the Go
community. They are responsible for handling conduct-related issues.
Their purpose is to de-escalate conflicts and try to resolve issues to the
satisfaction of all parties. They are:
</p>
<ul>
<li>Aditya Mukerjee &lt;dev@chimeracoder.net&gt;
<li>Andrew Gerrand &lt;adg@golang.org&gt;
<li>Peggy Li &lt;peggyli.224@gmail.com&gt;
<li>Sarah Adams &lt;sadams.codes@gmail.com&gt;
<li>Steve Francia &lt;steve.francia@gmail.com&gt;
<li>Verónica López &lt;gveronicalg@gmail.com&gt;
</ul>
<p>
If you encounter a conduct-related issue, you should report it to the
Working Group using the process described below.
<b>Do not</b> post about the issue publicly or try to rally sentiment against a
particular individual or group.
</p>
<ul>
<li>Mail <a href="mailto:conduct@golang.org">conduct@golang.org</a>.
<ul>
<li>Your message will reach the Working Group.
<li>Reports are confidential within the Working Group.
<li>You may contact a member of the group directly if you do not feel
comfortable contacting the group as a whole. That member will then raise
the issue with the Working Group as a whole, preserving the privacy of the
reporter (if desired).
<li>If your report concerns a member of the Working Group they will be recused
from Working Group discussions of the report.
<li>The Working Group will strive to handle reports with discretion and
sensitivity, to protect the privacy of the involved parties,
and to avoid conflicts of interest.
</ul>
<li>You should receive a response within 48 hours (likely sooner).
(Should you choose to contact a single Working Group member,
it may take longer to receive a response.)
<li>The Working Group will meet to review the incident and determine what happened.
<ul>
<li>With the permission of person reporting the incident, the Working Group
may reach out to other community members for more context.
</ul>
<li>The Working Group will reach a decision as to how to act. These may include:
<ul>
<li>Nothing.
<li>Passing the report along to the offender.
<li>A recommendation of action to the relevant forum moderators.
</ul>
<li>The Working Group will reach out to the original reporter to let them know
the decision.
<li>Appeals to the decision may be made to the Working Group,
or to any of its members directly.
</ul>
<p>
<b>Note that the goal of the Code of Conduct and the Working Group is to resolve
conflicts in the most harmonious way possible.</b>
We hope that in most cases issues may be resolved through polite discussion and
mutual agreement.
</p>
<p>
Changes to the Code of Conduct (including to the members of the Working Group)
should be proposed using the
<a href="https://golang.org/s/proposal-process">change proposal process</a>.
</p>
<h2 id="summary">Summary</h2>
<ul>
<li>Treat everyone with respect and kindness.
<li>Be thoughtful in how you communicate.
<li>Dont be destructive or inflammatory.
<li>If you encounter an issue, please mail <a href="mailto:conduct@golang.org">conduct@golang.org</a>.
</ul>
<h3 id="acknowledgements">Acknowledgements</h3>
<p>
Parts of this document were derived from the Code of Conduct documents of the
Django, FreeBSD, and Rust projects.
</p>

122
doc/contrib.html Normal file
View File

@@ -0,0 +1,122 @@
<!--{
"Title": "The Go Project",
"Path": "/project/"
}-->
<img class="gopher" src="/doc/gopher/project.png" />
<div id="manual-nav"></div>
<p>
Go is an open source project developed by a team at
<a href="//google.com/">Google</a> and many
<a href="/CONTRIBUTORS">contributors</a> from the open source community.
</p>
<p>
Go is distributed under a <a href="/LICENSE">BSD-style license</a>.
</p>
<h3 id="announce"><a href="//groups.google.com/group/golang-announce">Announcements Mailing List</a></h3>
<p>
A low traffic mailing list for important announcements, such as new releases.
</p>
<p>
We encourage all Go users to subscribe to
<a href="//groups.google.com/group/golang-announce">golang-announce</a>.
</p>
<h2 id="go1">Version history</h2>
<h3 id="release"><a href="/doc/devel/release.html">Release History</a></h3>
<p>A <a href="/doc/devel/release.html">summary</a> of the changes between Go releases. Notes for the major releases:</p>
<ul>
<li><a href="/doc/go1.9">Go 1.9</a> <small>(August 2017)</small></li>
<li><a href="/doc/go1.8">Go 1.8</a> <small>(February 2017)</small></li>
<li><a href="/doc/go1.7">Go 1.7</a> <small>(August 2016)</small></li>
<li><a href="/doc/go1.6">Go 1.6</a> <small>(February 2016)</small></li>
<li><a href="/doc/go1.5">Go 1.5</a> <small>(August 2015)</small></li>
<li><a href="/doc/go1.4">Go 1.4</a> <small>(December 2014)</small></li>
<li><a href="/doc/go1.3">Go 1.3</a> <small>(June 2014)</small></li>
<li><a href="/doc/go1.2">Go 1.2</a> <small>(December 2013)</small></li>
<li><a href="/doc/go1.1">Go 1.1</a> <small>(May 2013)</small></li>
<li><a href="/doc/go1">Go 1</a> <small>(March 2012)</small></li>
</ul>
<h3 id="go1compat"><a href="/doc/go1compat">Go 1 and the Future of Go Programs</a></h3>
<p>
What Go 1 defines and the backwards-compatibility guarantees one can expect as
Go 1 matures.
</p>
<h2 id="resources">Developer Resources</h2>
<h3 id="source"><a href="https://golang.org/change">Source Code</a></h3>
<p>Check out the Go source code.</p>
<h3 id="golang-dev"><a href="https://groups.google.com/group/golang-dev">Developer</a> and
<a href="https://groups.google.com/group/golang-codereviews">Code Review Mailing List</a></h3>
<p>The <a href="https://groups.google.com/group/golang-dev">golang-dev</a>
mailing list is for discussing code changes to the Go project.
The <a href="https://groups.google.com/group/golang-codereviews">golang-codereviews</a>
mailing list is for actual reviewing of the code changes (CLs).</p>
<p>For general discussion of Go programming, see <a
href="https://groups.google.com/group/golang-nuts">golang-nuts</a>.</p>
<h3 id="golang-checkins"><a href="https://groups.google.com/group/golang-checkins">Checkins Mailing List</a></h3>
<p>A mailing list that receives a message summarizing each checkin to the Go repository.</p>
<h3 id="build_status"><a href="//build.golang.org/">Build Status</a></h3>
<p>View the status of Go builds across the supported operating
systems and architectures.</p>
<h2 id="howto">How you can help</h2>
<h3><a href="//golang.org/issue">Reporting issues</a></h3>
<p>
If you spot bugs, mistakes, or inconsistencies in the Go project's code or
documentation, please let us know by
<a href="//golang.org/issue/new">filing a ticket</a>
on our <a href="//golang.org/issue">issue tracker</a>.
(Of course, you should check it's not an existing issue before creating
a new one.)
</p>
<p>
We pride ourselves on being meticulous; no issue is too small.
</p>
<p>
Security-related issues should be reported to
<a href="mailto:security@golang.org">security@golang.org</a>.<br>
See the <a href="/security">security policy</a> for more details.
</p>
<p>
Community-related issues should be reported to
<a href="mailto:conduct@golang.org">conduct@golang.org</a>.<br>
See the <a href="/conduct">Code of Conduct</a> for more details.
</p>
<h3><a href="/doc/contribute.html">Contributing code</a></h3>
<p>
Go is an open source project and we welcome contributions from the community.
</p>
<p>
To get started, read these <a href="/doc/contribute.html">contribution
guidelines</a> for information on design, testing, and our code review process.
</p>
<p>
Check <a href="//golang.org/issue">the tracker</a> for
open issues that interest you. Those labeled
<a href="https://github.com/golang/go/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22">help wanted</a>
are particularly in need of outside help.
</p>

File diff suppressed because it is too large Load Diff

View File

@@ -3,76 +3,51 @@
"Path": "/doc/gdb"
}-->
<!--
NOTE: In this document and others in this directory, the convention is to
set fixed-width phrases with non-fixed-width spaces, as in
<code>hello</code> <code>world</code>.
Do not send CLs removing the interior tags from such phrases.
-->
<i>
<p>
The following instructions apply to the standard toolchain
(the <code>gc</code> Go compiler and tools).
Gccgo has native gdb support.
</p>
<p>
Note that
<a href="https://github.com/go-delve/delve">Delve</a> is a better
alternative to GDB when debugging Go programs built with the standard
toolchain. It understands the Go runtime, data structures, and
expressions better than GDB. Delve currently supports Linux, OSX,
and Windows on <code>amd64</code>.
For the most up-to-date list of supported platforms, please see
<a href="https://github.com/go-delve/delve/tree/master/Documentation/installation">
the Delve documentation</a>.
</p>
</i>
<p><i>
This applies to the standard toolchain (the <code>gc</code> Go
compiler and tools). Gccgo has native gdb support.
Besides this overview you might want to consult the
<a href="http://sourceware.org/gdb/current/onlinedocs/gdb/">GDB manual</a>.
</i></p>
<p>
GDB does not understand Go programs well.
The stack management, threading, and runtime contain aspects that differ
enough from the execution model GDB expects that they can confuse
the debugger and cause incorrect results even when the program is
compiled with gccgo.
As a consequence, although GDB can be useful in some situations (e.g.,
debugging Cgo code, or debugging the runtime itself), it is not
a reliable debugger for Go programs, particularly heavily concurrent
ones. Moreover, it is not a priority for the Go project to address
these issues, which are difficult.
</p>
<p>
the debugger, even when the program is compiled with gccgo.
As a consequence, although GDB can be useful in some situations, it is
not a reliable debugger for Go programs, particularly heavily concurrent ones.
Moreover, it is not a priority for the Go project to address these issues, which
are difficult.
In short, the instructions below should be taken only as a guide to how
to use GDB when it works, not as a guarantee of success.
Besides this overview you might want to consult the
<a href="https://sourceware.org/gdb/current/onlinedocs/gdb/">GDB manual</a>.
</p>
<p>
In time, a more Go-centric debugging architecture may be required.
</p>
<h2 id="Introduction">Introduction</h2>
<p>
When you compile and link your Go programs with the <code>gc</code> toolchain
on Linux, macOS, FreeBSD or NetBSD, the resulting binaries contain DWARFv4
debugging information that recent versions (&ge;7.5) of the GDB debugger can
on Linux, Mac OS X, FreeBSD or NetBSD, the resulting binaries contain DWARFv3
debugging information that recent versions (&gt;7.1) of the GDB debugger can
use to inspect a live process or a core dump.
</p>
<p>
Pass the <code>'-w'</code> flag to the linker to omit the debug information
(for example, <code>go</code> <code>build</code> <code>-ldflags=-w</code> <code>prog.go</code>).
(for example, <code>go build -ldflags "-w" prog.go</code>).
</p>
<p>
The code generated by the <code>gc</code> compiler includes inlining of
function invocations and registerization of variables. These optimizations
can sometimes make debugging with <code>gdb</code> harder.
If you find that you need to disable these optimizations,
build your program using <code>go</code> <code>build</code> <code>-gcflags=all="-N -l"</code>.
can sometimes make debugging with <code>gdb</code> harder. To disable them
when debugging, pass the flags <code>-gcflags "-N -l"</code> to the
<a href="/cmd/go"><code>go</code></a> command used to build the code being
debugged.
</p>
<p>
@@ -119,7 +94,7 @@ Show the name, type and location of global variables:
<p>
A recent extension mechanism to GDB allows it to load extension scripts for a
given binary. The toolchain uses this to extend GDB with a handful of
given binary. The tool chain uses this to extend GDB with a handful of
commands to inspect internals of the runtime code (such as goroutines) and to
pretty print the built-in map, slice and channel types.
</p>
@@ -149,9 +124,6 @@ Inspecting goroutines:
(gdb) <b>help goroutine</b></pre>
For example:
<pre>(gdb) <b>goroutine 12 bt</b></pre>
You can inspect all goroutines by passing <code>all</code> instead of a specific goroutine's ID.
For example:
<pre>(gdb) <b>goroutine all bt</b></pre>
</li>
</ul>
@@ -167,7 +139,7 @@ the DWARF code.
<p>
If you're interested in what the debugging information looks like, run
<code>objdump</code> <code>-W</code> <code>a.out</code> and browse through the <code>.debug_*</code>
'<code>objdump -W a.out</code>' and browse through the <code>.debug_*</code>
sections.
</p>
@@ -182,15 +154,7 @@ from it.</li>
<code>"fmt.Print"</code> as an unstructured literal with a <code>"."</code>
that needs to be quoted. It objects even more strongly to method names of
the form <code>pkg.(*MyType).Meth</code>.
<li>As of Go 1.11, debug information is compressed by default.
Older versions of gdb, such as the one available by default on MacOS,
do not understand the compression.
You can generate uncompressed debug information by using <code>go
build -ldflags=-compressdwarf=false</code>.
(For convenience you can put the <code>-ldflags</code> option in
the <a href="/cmd/go/#hdr-Environment_variables"><code>GOFLAGS</code>
environment variable</a> so that you don't have to specify it each time.)
</li>
<li>All global variables are lumped into package <code>"main"</code>.</li>
</ol>
<h2 id="Tutorial">Tutorial</h2>
@@ -198,7 +162,7 @@ environment variable</a> so that you don't have to specify it each time.)
<p>
In this tutorial we will inspect the binary of the
<a href="/pkg/regexp/">regexp</a> package's unit tests. To build the binary,
change to <code>$GOROOT/src/regexp</code> and run <code>go</code> <code>test</code> <code>-c</code>.
change to <code>$GOROOT/src/regexp</code> and run <code>go test -c</code>.
This should produce an executable file named <code>regexp.test</code>.
</p>
@@ -224,7 +188,7 @@ Loading Go Runtime support.
</pre>
<p>
The message "Loading Go Runtime support" means that GDB loaded the
The message <code>"Loading Go Runtime support"</code> means that GDB loaded the
extension from <code>$GOROOT/src/runtime/runtime-gdb.py</code>.
</p>
@@ -259,7 +223,7 @@ Use the <code>"l"</code> or <code>"list"</code> command to inspect source code.
</pre>
<p>
List a specific part of the source parameterizing <code>"list"</code> with a
List a specific part of the source parametrizing <code>"list"</code> with a
function name (it must be qualified with its package name).
</p>
@@ -389,7 +353,7 @@ Stack level 0, frame at 0x7ffff7f9ff88:
</pre>
<p>
The command <code>info</code> <code>locals</code> lists all variables local to the function and their values, but is a bit
The command <code>info locals</code> lists all variables local to the function and their values, but is a bit
dangerous to use, since it will also try to print uninitialized variables. Uninitialized slices may cause gdb to try
to print arbitrary large arrays.
</p>
@@ -422,7 +386,7 @@ $3 = struct hchan&lt;*testing.T&gt;
</pre>
<p>
That <code>struct</code> <code>hchan&lt;*testing.T&gt;</code> is the
That <code>struct hchan&lt;*testing.T&gt;</code> is the
runtime-internal representation of a channel. It is currently empty,
or gdb would have pretty-printed its contents.
</p>

455
doc/devel/pre_go1.html Normal file
View File

@@ -0,0 +1,455 @@
<!--{
"Title": "Pre-Go 1 Release History"
}-->
<p>
This page summarizes the changes between stable releases of Go prior to Go 1.
See the <a href="release.html">Release History</a> page for notes on recent releases.
</p>
<h2 id="r60">r60 (released 2011/09/07)</h2>
<p>
The r60 release corresponds to
<code><a href="weekly.html#2011-08-17">weekly.2011-08-17</a></code>.
This section highlights the most significant changes in this release.
For a more detailed summary, see the
<a href="weekly.html#2011-08-17">weekly release notes</a>.
For complete information, see the
<a href="//code.google.com/p/go/source/list?r=release-branch.r60">Mercurial change list</a>.
</p>
<h3 id="r60.lang">Language</h3>
<p>
An "else" block is now required to have braces except if the body of the "else"
is another "if". Since gofmt always puts those braces in anyway,
gofmt-formatted programs will not be affected.
To fix other programs, run gofmt.
</p>
<h3 id="r60.pkg">Packages</h3>
<p>
<a href="/pkg/http/">Package http</a>'s URL parsing and query escaping code
(such as <code>ParseURL</code> and <code>URLEscape</code>) has been moved to
the new <a href="/pkg/url/">url package</a>, with several simplifications to
the names. Client code can be updated automatically with gofix.
</p>
<p>
<a href="/pkg/image/">Package image</a> has had significant changes made to the
<code>Pix</code> field of struct types such as
<a href="/pkg/image/#RGBA">image.RGBA</a> and
<a href="/pkg/image/#NRGBA">image.NRGBA</a>.
The <a href="/pkg/image/#Image">image.Image</a> interface type has not changed,
though, and you should not need to change your code if you don't explicitly
refer to <code>Pix</code> fields. For example, if you decode a number of images
using the <a href="/pkg/image/jpeg/">image/jpeg</a> package, compose them using
<a href="/pkg/image/draw/">image/draw</a>, and then encode the result using
<a href="/pkg/img/png">image/png</a>, then your code should still work as
before.
If your code <i>does</i> refer to <code>Pix</code> fields see the
<a href="/doc/devel/weekly.html#2011-07-19">weekly.2011-07-19</a>
snapshot notes for how to update your code.
</p>
<p>
<a href="/pkg/template/">Package template</a> has been replaced with a new
templating package (formerly <code>exp/template</code>). The original template
package is still available as <a href="/pkg/old/template/">old/template</a>.
The <code>old/template</code> package is deprecated and will be removed.
The Go tree has been updated to use the new template package. We encourage
users of the old template package to switch to the new one. Code that uses
<code>template</code> or <code>exp/template</code> will need to change its
import lines to <code>"old/template"</code> or <code>"template"</code>,
respectively.
</p>
<h3 id="r60.cmd">Tools</h3>
<p>
<a href="/cmd/goinstall/">Goinstall</a> now uses a new tag selection scheme.
When downloading or updating, goinstall looks for a tag or branch with the
<code>"go."</code> prefix that corresponds to the local Go version. For Go
<code>release.r58</code> it looks for <code>go.r58</code>. For
<code>weekly.2011-06-03</code> it looks for <code>go.weekly.2011-06-03</code>.
If the specific <code>go.X</code> tag or branch is not found, it chooses the
closest earlier version. If an appropriate tag or branch is found, goinstall
uses that version of the code. Otherwise it uses the default version selected
by the version control system. Library authors are encouraged to use the
appropriate tag or branch names in their repositories to make their libraries
more accessible.
</p>
<h3 id="r60.minor">Minor revisions</h3>
<p>
r60.1 includes a
<a href="//golang.org/change/1824581bf62d">linker
fix</a>, a pair of
<a href="//golang.org/change/9ef4429c2c64">goplay</a>
<a href="//golang.org/change/d42ed8c3098e">fixes</a>,
and a <code>json</code> package
<a href="//golang.org/change/d5e97874fe84">fix</a> and
a new
<a href="//golang.org/change/4f0e6269213f">struct tag
option</a>.
</p>
<p>
r60.2
<a href="//golang.org/change/ff19536042ac">fixes</a>
a memory leak involving maps.
</p>
<p>
r60.3 fixes a
<a href="//golang.org/change/01fa62f5e4e5">reflect bug</a>.
</p>
<h2 id="r59">r59 (released 2011/08/01)</h2>
<p>
The r59 release corresponds to
<code><a href="weekly.html#2011-07-07">weekly.2011-07-07</a></code>.
This section highlights the most significant changes in this release.
For a more detailed summary, see the
<a href="weekly.html#2011-07-07">weekly release notes</a>.
For complete information, see the
<a href="//code.google.com/p/go/source/list?r=release-branch.r59">Mercurial change list</a>.
</p>
<h3 id="r59.lang">Language</h3>
<p>
This release includes a language change that restricts the use of
<code>goto</code>. In essence, a <code>goto</code> statement outside a block
cannot jump to a label inside that block. Your code may require changes if it
uses <code>goto</code>.
See <a href="//golang.org/change/dc6d3cf9279d">this
changeset</a> for how the new rule affected the Go tree.
</p>
<h3 id="r59.pkg">Packages</h3>
<p>
As usual, <a href="/cmd/gofix/">gofix</a> will handle the bulk of the rewrites
necessary for these changes to package APIs.
</p>
<p>
<a href="/pkg/http">Package http</a> has a new
<a href="/pkg/http/#FileSystem">FileSystem</a> interface that provides access
to files. The <a href="/pkg/http/#FileServer">FileServer</a> helper now takes a
<code>FileSystem</code> argument instead of an explicit file system root. By
implementing your own <code>FileSystem</code> you can use the
<code>FileServer</code> to serve arbitrary data.
</p>
<p>
<a href="/pkg/os/">Package os</a>'s <code>ErrorString</code> type has been
hidden. Most uses of <code>os.ErrorString</code> can be replaced with
<a href="/pkg/os/#NewError">os.NewError</a>.
</p>
<p>
<a href="/pkg/reflect/">Package reflect</a> supports a new struct tag scheme
that enables sharing of struct tags between multiple packages.
In this scheme, the tags must be of the form:
</p>
<pre>
`key:"value" key2:"value2"`
</pre>
<p>
The <a href="/pkg/reflect/#StructField">StructField</a> type's Tag field now
has type <a href="/pkg/reflect/#StructTag">StructTag</a>, which has a
<code>Get</code> method. Clients of <a href="/pkg/json">json</a> and
<a href="/pkg/xml">xml</a> will need to be updated. Code that says
</p>
<pre>
type T struct {
X int "name"
}
</pre>
<p>
should become
</p>
<pre>
type T struct {
X int `json:"name"` // or `xml:"name"`
}
</pre>
<p>
Use <a href="/cmd/govet/">govet</a> to identify struct tags that need to be
changed to use the new syntax.
</p>
<p>
<a href="/pkg/sort/">Package sort</a>'s <code>IntArray</code> type has been
renamed to <a href="/pkg/sort/#IntSlice">IntSlice</a>, and similarly for
<a href="/pkg/sort/#Float64Slice">Float64Slice</a> and
<a href="/pkg/sort/#StringSlice">StringSlice</a>.
</p>
<p>
<a href="/pkg/strings/">Package strings</a>'s <code>Split</code> function has
itself been split into <a href="/pkg/strings/#Split">Split</a> and
<a href="/pkg/strings/#SplitN">SplitN</a>.
<code>SplitN</code> is the same as the old <code>Split</code>.
The new <code>Split</code> is equivalent to <code>SplitN</code> with a final
argument of -1.
</p>
<a href="/pkg/image/draw/">Package image/draw</a>'s
<a href="/pkg/image/draw/#Draw">Draw</a> function now takes an additional
argument, a compositing operator.
If in doubt, use <a href="/pkg/image/draw/#Op">draw.Over</a>.
</p>
<h3 id="r59.cmd">Tools</h3>
<p>
<a href="/cmd/goinstall/">Goinstall</a> now installs packages and commands from
arbitrary remote repositories (not just Google Code, Github, and so on).
See the <a href="/cmd/goinstall/">goinstall documentation</a> for details.
</p>
<h2 id="r58">r58 (released 2011/06/29)</h2>
<p>
The r58 release corresponds to
<code><a href="weekly.html#2011-06-09">weekly.2011-06-09</a></code>
with additional bug fixes.
This section highlights the most significant changes in this release.
For a more detailed summary, see the
<a href="weekly.html#2011-06-09">weekly release notes</a>.
For complete information, see the
<a href="//code.google.com/p/go/source/list?r=release-branch.r58">Mercurial change list</a>.
</p>
<h3 id="r58.lang">Language</h3>
<p>
This release fixes a <a href="//golang.org/change/b720749486e1">use of uninitialized memory in programs that misuse <code>goto</code></a>.
</p>
<h3 id="r58.pkg">Packages</h3>
<p>
As usual, <a href="/cmd/gofix/">gofix</a> will handle the bulk of the rewrites
necessary for these changes to package APIs.
</p>
<p>
<a href="/pkg/http/">Package http</a> drops the <code>finalURL</code> return
value from the <a href="/pkg/http/#Client.Get">Client.Get</a> method. The value
is now available via the new <code>Request</code> field on <a
href="/pkg/http/#Response">http.Response</a>.
Most instances of the type map[string][]string in have been
replaced with the new <a href="/pkg/http/#Values">Values</a> type.
</p>
<p>
<a href="/pkg/exec/">Package exec</a> has been redesigned with a more
convenient and succinct API.
</p>
<p>
<a href="/pkg/strconv/">Package strconv</a>'s <a href="/pkg/strconv/#Quote">Quote</a>
function now escapes only those Unicode code points not classified as printable
by <a href="/pkg/unicode/#IsPrint">unicode.IsPrint</a>.
Previously Quote would escape all non-ASCII characters.
This also affects the <a href="/pkg/fmt/">fmt</a> package's <code>"%q"</code>
formatting directive. The previous quoting behavior is still available via
strconv's new <a href="/pkg/strconv/#QuoteToASCII">QuoteToASCII</a> function.
</p>
<p>
<a href="/pkg/os/signal/">Package os/signal</a>'s
<a href="/pkg/os/#Signal">Signal</a> and
<a href="/pkg/os/#UnixSignal">UnixSignal</a> types have been moved to the
<a href="/pkg/os/">os</a> package.
</p>
<p>
<a href="/pkg/image/draw/">Package image/draw</a> is the new name for
<code>exp/draw</code>. The GUI-related code from <code>exp/draw</code> is now
located in the <a href="/pkg/exp/gui/">exp/gui</a> package.
</p>
<h3 id="r58.cmd">Tools</h3>
<p>
<a href="/cmd/goinstall/">Goinstall</a> now observes the GOPATH environment
variable to build and install your own code and external libraries outside of
the Go tree (and avoid writing Makefiles).
</p>
<h3 id="r58.minor">Minor revisions</h3>
<p>r58.1 adds
<a href="//golang.org/change/293c25943586">build</a> and
<a href="//golang.org/change/bf17e96b6582">runtime</a>
changes to make Go run on OS X 10.7 Lion.
</p>
<h2 id="r57">r57 (released 2011/05/03)</h2>
<p>
The r57 release corresponds to
<code><a href="weekly.html#2011-04-27">weekly.2011-04-27</a></code>
with additional bug fixes.
This section highlights the most significant changes in this release.
For a more detailed summary, see the
<a href="weekly.html#2011-04-27">weekly release notes</a>.
For complete information, see the
<a href="//code.google.com/p/go/source/list?r=release-branch.r57">Mercurial change list</a>.
</p>
<p>The new <a href="/cmd/gofix">gofix</a> tool finds Go programs that use old APIs and rewrites them to use
newer ones. After you update to a new Go release, gofix helps make the
necessary changes to your programs. Gofix will handle the http, os, and syscall
package changes described below, and we will update the program to keep up with
future changes to the libraries.
Gofix cant
handle all situations perfectly, so read and test the changes it makes before
committing them.
See <a href="//blog.golang.org/2011/04/introducing-gofix.html">the gofix blog post</a> for more
information.</p>
<h3 id="r57.lang">Language</h3>
<p>
<a href="/doc/go_spec.html#Receive_operator">Multiple assignment syntax</a> replaces the <code>closed</code> function.
The syntax for channel
receives allows an optional second assigned value, a boolean value
indicating whether the channel is closed. This code:
</p>
<pre>
v := &lt;-ch
if closed(ch) {
// channel is closed
}
</pre>
<p>should now be written as:</p>
<pre>
v, ok := &lt;-ch
if !ok {
// channel is closed
}
</pre>
<p><a href="/doc/go_spec.html#Label_scopes">Unused labels are now illegal</a>, just as unused local variables are.</p>
<h3 id="r57.pkg">Packages</h3>
<p>
<a href="/pkg/gob/">Package gob</a> will now encode and decode values of types that implement the
<a href="/pkg/gob/#GobEncoder">GobEncoder</a> and
<a href="/pkg/gob/#GobDecoder">GobDecoder</a> interfaces. This allows types with unexported
fields to transmit self-consistent descriptions; examples include
<a href="/pkg/big/#Int.GobDecode">big.Int</a> and <a href="/pkg/big/#Rat.GobDecode">big.Rat</a>.
</p>
<p>
<a href="/pkg/http/">Package http</a> has been redesigned.
For clients, there are new
<a href="/pkg/http/#Client">Client</a> and <a href="/pkg/http/#Transport">Transport</a>
abstractions that give more control over HTTP details such as headers sent
and redirections followed. These abstractions make it easy to implement
custom clients that add functionality such as <a href="//code.google.com/p/goauth2/source/browse/oauth/oauth.go">OAuth2</a>.
For servers, <a href="/pkg/http/#ResponseWriter">ResponseWriter</a>
has dropped its non-essential methods.
The Hijack and Flush methods are no longer required;
code can test for them by checking whether a specific value implements
<a href="/pkg/http/#Hijacker">Hijacker</a> or <a href="/pkg/http/#Flusher">Flusher</a>.
The RemoteAddr and UsingTLS methods are replaced by <a href="/pkg/http/#Request">Request</a>'s
RemoteAddr and TLS fields.
The SetHeader method is replaced by a Header method;
its result, of type <a href="/pkg/http/#Header">Header</a>,
implements Set and other methods.
</p>
<p>
<a href="/pkg/net/">Package net</a>
drops the <code>laddr</code> argument from <a href="/pkg/net/#Conn.Dial">Dial</a>
and drops the <code>cname</code> return value
from <a href="/pkg/net/#LookupHost">LookupHost</a>.
The implementation now uses <a href="/cmd/cgo/">cgo</a> to implement
network name lookups using the C library getaddrinfo(3)
function when possible. This ensures that Go and C programs
resolve names the same way and also avoids the OS X
application-level firewall.
</p>
<p>
<a href="/pkg/os/">Package os</a>
introduces simplified <a href="/pkg/os/#File.Open">Open</a>
and <a href="/pkg/os/#File.Create">Create</a> functions.
The original Open is now available as <a href="/pkg/os/#File.OpenFile">OpenFile</a>.
The final three arguments to <a href="/pkg/os/#Process.StartProcess">StartProcess</a>
have been replaced by a pointer to a <a href="/pkg/os/#ProcAttr">ProcAttr</a>.
</p>
<p>
<a href="/pkg/reflect/">Package reflect</a> has been redesigned.
<a href="/pkg/reflect/#Type">Type</a> is now an interface that implements
all the possible type methods.
Instead of a type switch on a Type <code>t</code>, switch on <code>t.Kind()</code>.
<a href="/pkg/reflect/#Value">Value</a> is now a struct value that
implements all the possible value methods.
Instead of a type switch on a Value <code>v</code>, switch on <code>v.Kind()</code>.
Typeof and NewValue are now called <a href="/pkg/reflect/#Type.TypeOf">TypeOf</a> and <a href="/pkg/reflect/#Value.ValueOf">ValueOf</a>
To create a writable Value, use <code>New(t).Elem()</code> instead of <code>Zero(t)</code>.
See <a href="//golang.org/change/843855f3c026">the change description</a>
for the full details.
The new API allows a more efficient implementation of Value
that avoids many of the allocations required by the previous API.
</p>
<p>
Remember that gofix will handle the bulk of the rewrites
necessary for these changes to package APIs.
</p>
<h3 id="r57.cmd">Tools</h3>
<p><a href="/cmd/gofix/">Gofix</a>, a new command, is described above.</p>
<p>
<a href="/cmd/gotest/">Gotest</a> is now a Go program instead of a shell script.
The new <code>-test.short</code> flag in combination with package testing's Short function
allows you to write tests that can be run in normal or &ldquo;short&rdquo; mode;
all.bash runs tests in short mode to reduce installation time.
The Makefiles know about the flag: use <code>make testshort</code>.
</p>
<p>
The run-time support now implements CPU and memory profiling.
Gotest's new
<a href="/cmd/gotest/"><code>-test.cpuprofile</code> and
<code>-test.memprofile</code> flags</a> make it easy to
profile tests.
To add profiling to your web server, see the <a href="/pkg/http/pprof/">http/pprof</a>
documentation.
For other uses, see the <a href="/pkg/runtime/pprof/">runtime/pprof</a> documentation.
</p>
<h3 id="r57.minor">Minor revisions</h3>
<p>r57.1 fixes a <a href="//golang.org/change/ff2bc62726e7145eb2ecc1e0f076998e4a8f86f0">nil pointer dereference in http.FormFile</a>.</p>
<p>r57.2 fixes a <a href="//golang.org/change/063b0ff67d8277df03c956208abc068076818dae">use of uninitialized memory in programs that misuse <code>goto</code></a>.</p>
<h2 id="r56">r56 (released 2011/03/16)</h2>
<p>
The r56 release was the first stable release and corresponds to
<code><a href="weekly.html#2011-03-07">weekly.2011-03-07.1</a></code>.
The numbering starts at 56 because before this release,
what we now consider weekly snapshots were called releases.
</p>

417
doc/devel/release.html Normal file
View File

@@ -0,0 +1,417 @@
<!--{
"Title": "Release History"
}-->
<p>This page summarizes the changes between official stable releases of Go.
The <a href="//golang.org/change">change log</a> has the full details.</p>
<p>To update to a specific release, use:</p>
<pre>
git pull
git checkout <i>release-branch</i>
</pre>
<h2 id="policy">Release Policy</h2>
<p>
Each major Go release is supported until there are two newer major releases.
For example, Go 1.8 is supported until Go 1.10 is released,
and Go 1.9 is supported until Go 1.11 is released.
We fix critical problems, including <a href="/security">critical security problems</a>,
in supported releases as needed by issuing minor revisions
(for example, Go 1.9.1, Go 1.9.2, and so on).
</p>
<h2 id="go1.9">go1.9 (released 2017/08/24)</h2>
<p>
Go 1.9 is a major release of Go.
Read the <a href="/doc/go1.9">Go 1.9 Release Notes</a> for more information.
</p>
<h3 id="go1.9.minor">Minor revisions</h3>
<p>
go1.9.1 (released 2017/10/04) includes two security fixes.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.9.1">Go
1.9.1 milestone</a> on our issue tracker for details.
</p>
<p>
go1.9.2 (released 2017/10/25) includes fixes to the compiler, linker, runtime,
documentation, <code>go</code> command,
and the <code>crypto/x509</code>, <code>database/sql</code>, <code>log</code>,
and <code>net/smtp</code> packages.
It includes a fix to a bug introduced in Go 1.9.1 that broke <code>go</code> <code>get</code>
of non-Git repositories under certain conditions.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.9.2">Go
1.9.2 milestone</a> on our issue tracker for details.
</p>
<p>
go1.9.3 (released 2018/01/22) includes fixes to the compiler, runtime,
and the <code>database/sql</code>, <code>math/big</code>, <code>net/http</code>,
and <code>net/url</code> packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.9.3">Go
1.9.3 milestone</a> on our issue tracker for details.
</p>
<p>
go1.9.4 (released 2018/02/07) includes a security fix to “go get”.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.9.4">Go
1.9.4</a> milestone on our issue tracker for details.
</p>
<p>
go1.9.5 (released 2018/03/28) includes fixes to the compiler, go command, and
<code>net/http/pprof</code> package.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.9.5">Go
1.9.5 milestone</a> on our issue tracker for details.
</p>
<p>
go1.9.6 (released 2018/05/01) includes fixes to the compiler and go command.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.9.6">Go
1.9.6 milestone</a> on our issue tracker for details.
</p>
<h2 id="go1.8">go1.8 (released 2017/02/16)</h2>
<p>
Go 1.8 is a major release of Go.
Read the <a href="/doc/go1.8">Go 1.8 Release Notes</a> for more information.
</p>
<h3 id="go1.8.minor">Minor revisions</h3>
<p>
go1.8.1 (released 2017/04/07) includes fixes to the compiler, linker, runtime,
documentation, <code>go</code> command and the <code>crypto/tls</code>,
<code>encoding/xml</code>, <code>image/png</code>, <code>net</code>,
<code>net/http</code>, <code>reflect</code>, <code>text/template</code>,
and <code>time</code> packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.8.1">Go
1.8.1 milestone</a> on our issue tracker for details.
</p>
<p>
go1.8.2 (released 2017/05/23) includes a security fix to the
<code>crypto/elliptic</code> package.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.8.2">Go
1.8.2 milestone</a> on our issue tracker for details.
</p>
<p>
go1.8.3 (released 2017/05/24) includes fixes to the compiler, runtime,
documentation, and the <code>database/sql</code> package.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.8.3">Go
1.8.3 milestone</a> on our issue tracker for details.
</p>
<p>
go1.8.4 (released 2017/10/04) includes two security fixes.
It contains the same fixes as Go 1.9.1 and was released at the same time.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.8.4">Go
1.8.4 milestone</a> on our issue tracker for details.
</p>
<p>
go1.8.5 (released 2017/10/25) includes fixes to the compiler, linker, runtime,
documentation, <code>go</code> command,
and the <code>crypto/x509</code> and <code>net/smtp</code> packages.
It includes a fix to a bug introduced in Go 1.8.4 that broke <code>go</code> <code>get</code>
of non-Git repositories under certain conditions.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.8.5">Go
1.8.5 milestone</a> on our issue tracker for details.
</p>
<p>
go1.8.6 (released 2018/01/22) includes the the same fix in <code>math/big</code>
as Go 1.9.3 and was released at the same time.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.8.6">Go
1.8.6 milestone</a> on our issue tracker for details.
</p>
<p>
go1.8.7 (released 2018/02/07) includes a security fix to “go get”.
It contains the same fix as Go 1.9.4 and was released at the same time.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.8.7">Go
1.8.7</a> milestone on our issue tracker for details.
</p>
<h2 id="go1.7">go1.7 (released 2016/08/15)</h2>
<p>
Go 1.7 is a major release of Go.
Read the <a href="/doc/go1.7">Go 1.7 Release Notes</a> for more information.
</p>
<h3 id="go1.7.minor">Minor revisions</h3>
<p>
go1.7.1 (released 2016/09/07) includes fixes to the compiler, runtime,
documentation, and the <code>compress/flate</code>, <code>hash/crc32</code>,
<code>io</code>, <code>net</code>, <code>net/http</code>,
<code>path/filepath</code>, <code>reflect</code>, and <code>syscall</code>
packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.7.1">Go
1.7.1 milestone</a> on our issue tracker for details.
</p>
<p>
go1.7.2 should not be used. It was tagged but not fully released.
The release was deferred due to a last minute bug report.
Use go1.7.3 instead, and refer to the summary of changes below.
</p>
<p>
go1.7.3 (released 2016/10/19) includes fixes to the compiler, runtime,
and the <code>crypto/cipher</code>, <code>crypto/tls</code>,
<code>net/http</code>, and <code>strings</code> packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.7.3">Go
1.7.3 milestone</a> on our issue tracker for details.
</p>
<p>
go1.7.4 (released 2016/12/01) includes two security fixes.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.7.4">Go
1.7.4 milestone</a> on our issue tracker for details.
</p>
<p>
go1.7.5 (released 2017/01/26) includes fixes to the compiler, runtime,
and the <code>crypto/x509</code> and <code>time</code> packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.7.5">Go
1.7.5 milestone</a> on our issue tracker for details.
</p>
<p>
go1.7.6 (released 2017/05/23) includes the same security fix as Go 1.8.2 and
was released at the same time.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.8.2">Go
1.8.2 milestone</a> on our issue tracker for details.
</p>
<h2 id="go1.6">go1.6 (released 2016/02/17)</h2>
<p>
Go 1.6 is a major release of Go.
Read the <a href="/doc/go1.6">Go 1.6 Release Notes</a> for more information.
</p>
<h3 id="go1.6.minor">Minor revisions</h3>
<p>
go1.6.1 (released 2016/04/12) includes two security fixes.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.6.1">Go
1.6.1 milestone</a> on our issue tracker for details.
</p>
<p>
go1.6.2 (released 2016/04/20) includes fixes to the compiler, runtime, tools,
documentation, and the <code>mime/multipart</code>, <code>net/http</code>, and
<code>sort</code> packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.6.2">Go
1.6.2 milestone</a> on our issue tracker for details.
</p>
<p>
go1.6.3 (released 2016/07/17) includes security fixes to the
<code>net/http/cgi</code> package and <code>net/http</code> package when used in
a CGI environment.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.6.3">Go
1.6.3 milestone</a> on our issue tracker for details.
</p>
<p>
go1.6.4 (released 2016/12/01) includes two security fixes.
It contains the same fixes as Go 1.7.4 and was released at the same time.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.7.4">Go
1.7.4 milestone</a> on our issue tracker for details.
</p>
<h2 id="go1.5">go1.5 (released 2015/08/19)</h2>
<p>
Go 1.5 is a major release of Go.
Read the <a href="/doc/go1.5">Go 1.5 Release Notes</a> for more information.
</p>
<h3 id="go1.5.minor">Minor revisions</h3>
<p>
go1.5.1 (released 2015/09/08) includes bug fixes to the compiler, assembler, and
the <code>fmt</code>, <code>net/textproto</code>, <code>net/http</code>, and
<code>runtime</code> packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.5.1">Go
1.5.1 milestone</a> on our issue tracker for details.
</p>
<p>
go1.5.2 (released 2015/12/02) includes bug fixes to the compiler, linker, and
the <code>mime/multipart</code>, <code>net</code>, and <code>runtime</code>
packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.5.2">Go
1.5.2 milestone</a> on our issue tracker for details.
</p>
<p>
go1.5.3 (released 2016/01/13) includes a security fix to the <code>math/big</code> package
affecting the <code>crypto/tls</code> package.
See the <a href="https://golang.org/s/go153announce">release announcement</a> for details.
</p>
<p>
go1.5.4 (released 2016/04/12) includes two security fixes.
It contains the same fixes as Go 1.6.1 and was released at the same time.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.6.1">Go
1.6.1 milestone</a> on our issue tracker for details.
</p>
<h2 id="go1.4">go1.4 (released 2014/12/10)</h2>
<p>
Go 1.4 is a major release of Go.
Read the <a href="/doc/go1.4">Go 1.4 Release Notes</a> for more information.
</p>
<h3 id="go1.4.minor">Minor revisions</h3>
<p>
go1.4.1 (released 2015/01/15) includes bug fixes to the linker and the <code>log</code>, <code>syscall</code>, and <code>runtime</code> packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.4.1">Go 1.4.1 milestone on our issue tracker</a> for details.
</p>
<p>
go1.4.2 (released 2015/02/17) includes bug fixes to the <code>go</code> command, the compiler and linker, and the <code>runtime</code>, <code>syscall</code>, <code>reflect</code>, and <code>math/big</code> packages.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.4.2">Go 1.4.2 milestone on our issue tracker</a> for details.
</p>
<p>
go1.4.3 (released 2015/09/22) includes security fixes to the <code>net/http</code> package and bug fixes to the <code>runtime</code> package.
See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.4.3">Go 1.4.3 milestone on our issue tracker</a> for details.
</p>
<h2 id="go1.3">go1.3 (released 2014/06/18)</h2>
<p>
Go 1.3 is a major release of Go.
Read the <a href="/doc/go1.3">Go 1.3 Release Notes</a> for more information.
</p>
<h3 id="go1.3.minor">Minor revisions</h3>
<p>
go1.3.1 (released 2014/08/13) includes bug fixes to the compiler and the <code>runtime</code>, <code>net</code>, and <code>crypto/rsa</code> packages.
See the <a href="https://github.com/golang/go/commits/go1.3.1">change history</a> for details.
</p>
<p>
go1.3.2 (released 2014/09/25) includes bug fixes to cgo and the crypto/tls packages.
See the <a href="https://github.com/golang/go/commits/go1.3.2">change history</a> for details.
</p>
<p>
go1.3.3 (released 2014/09/30) includes further bug fixes to cgo, the runtime package, and the nacl port.
See the <a href="https://github.com/golang/go/commits/go1.3.3">change history</a> for details.
</p>
<h2 id="go1.2">go1.2 (released 2013/12/01)</h2>
<p>
Go 1.2 is a major release of Go.
Read the <a href="/doc/go1.2">Go 1.2 Release Notes</a> for more information.
</p>
<h3 id="go1.2.minor">Minor revisions</h3>
<p>
go1.2.1 (released 2014/03/02) includes bug fixes to the <code>runtime</code>, <code>net</code>, and <code>database/sql</code> packages.
See the <a href="https://github.com/golang/go/commits/go1.2.1">change history</a> for details.
</p>
<p>
go1.2.2 (released 2014/05/05) includes a
<a href="https://github.com/golang/go/commits/go1.2.2">security fix</a>
that affects the tour binary included in the binary distributions (thanks to Guillaume T).
</p>
<h2 id="go1.1">go1.1 (released 2013/05/13)</h2>
<p>
Go 1.1 is a major release of Go.
Read the <a href="/doc/go1.1">Go 1.1 Release Notes</a> for more information.
</p>
<h3 id="go1.1.minor">Minor revisions</h3>
<p>
go1.1.1 (released 2013/06/13) includes several compiler and runtime bug fixes.
See the <a href="https://github.com/golang/go/commits/go1.1.1">change history</a> for details.
</p>
<p>
go1.1.2 (released 2013/08/13) includes fixes to the <code>gc</code> compiler
and <code>cgo</code>, and the <code>bufio</code>, <code>runtime</code>,
<code>syscall</code>, and <code>time</code> packages.
See the <a href="https://github.com/golang/go/commits/go1.1.2">change history</a> for details.
If you use package syscall's <code>Getrlimit</code> and <code>Setrlimit</code>
functions under Linux on the ARM or 386 architectures, please note change
<a href="//golang.org/cl/11803043">11803043</a>
that fixes <a href="//golang.org/issue/5949">issue 5949</a>.
</p>
<h2 id="go1">go1 (released 2012/03/28)</h2>
<p>
Go 1 is a major release of Go that will be stable in the long term.
Read the <a href="/doc/go1.html">Go 1 Release Notes</a> for more information.
</p>
<p>
It is intended that programs written for Go 1 will continue to compile and run
correctly, unchanged, under future versions of Go 1.
Read the <a href="/doc/go1compat.html">Go 1 compatibility document</a> for more
about the future of Go 1.
</p>
<p>
The go1 release corresponds to
<code><a href="weekly.html#2012-03-27">weekly.2012-03-27</a></code>.
</p>
<h3 id="go1.minor">Minor revisions</h3>
<p>
go1.0.1 (released 2012/04/25) was issued to
<a href="//golang.org/cl/6061043">fix</a> an
<a href="//golang.org/issue/3545">escape analysis bug</a>
that can lead to memory corruption.
It also includes several minor code and documentation fixes.
</p>
<p>
go1.0.2 (released 2012/06/13) was issued to fix two bugs in the implementation
of maps using struct or array keys:
<a href="//golang.org/issue/3695">issue 3695</a> and
<a href="//golang.org/issue/3573">issue 3573</a>.
It also includes many minor code and documentation fixes.
</p>
<p>
go1.0.3 (released 2012/09/21) includes minor code and documentation fixes.
</p>
<p>
See the <a href="https://github.com/golang/go/commits/release-branch.go1">go1 release branch history</a> for the complete list of changes.
</p>
<h2 id="pre.go1">Older releases</h2>
<p>
See the <a href="pre_go1.html">Pre-Go 1 Release History</a> page for notes
on earlier releases.
</p>

6200
doc/devel/weekly.html Normal file

File diff suppressed because it is too large Load Diff

View File

@@ -1,470 +0,0 @@
<!--{
"Title": "Diagnostics",
"Template": true
}-->
<!--
NOTE: In this document and others in this directory, the convention is to
set fixed-width phrases with non-fixed-width spaces, as in
<code>hello</code> <code>world</code>.
Do not send CLs removing the interior tags from such phrases.
-->
<h2 id="introduction">Introduction</h2>
<p>
The Go ecosystem provides a large suite of APIs and tools to
diagnose logic and performance problems in Go programs. This page
summarizes the available tools and helps Go users pick the right one
for their specific problem.
</p>
<p>
Diagnostics solutions can be categorized into the following groups:
</p>
<ul>
<li><strong>Profiling</strong>: Profiling tools analyze the complexity and costs of a
Go program such as its memory usage and frequently called
functions to identify the expensive sections of a Go program.</li>
<li><strong>Tracing</strong>: Tracing is a way to instrument code to analyze latency
throughout the lifecycle of a call or user request. Traces provide an
overview of how much latency each component contributes to the overall
latency in a system. Traces can span multiple Go processes.</li>
<li><strong>Debugging</strong>: Debugging allows us to pause a Go program and examine
its execution. Program state and flow can be verified with debugging.</li>
<li><strong>Runtime statistics and events</strong>: Collection and analysis of runtime stats and events
provides a high-level overview of the health of Go programs. Spikes/dips of metrics
helps us to identify changes in throughput, utilization, and performance.</li>
</ul>
<p>
Note: Some diagnostics tools may interfere with each other. For example, precise
memory profiling skews CPU profiles and goroutine blocking profiling affects scheduler
trace. Use tools in isolation to get more precise info.
</p>
<h2 id="profiling">Profiling</h2>
<p>
Profiling is useful for identifying expensive or frequently called sections
of code. The Go runtime provides <a href="https://golang.org/pkg/runtime/pprof/">
profiling data</a> in the format expected by the
<a href="https://github.com/google/pprof/blob/master/doc/README.md">pprof visualization tool</a>.
The profiling data can be collected during testing
via <code>go</code> <code>test</code> or endpoints made available from the <a href="/pkg/net/http/pprof/">
net/http/pprof</a> package. Users need to collect the profiling data and use pprof tools to filter
and visualize the top code paths.
</p>
<p>Predefined profiles provided by the <a href="/pkg/runtime/pprof">runtime/pprof</a> package:</p>
<ul>
<li>
<strong>cpu</strong>: CPU profile determines where a program spends
its time while actively consuming CPU cycles (as opposed to while sleeping or waiting for I/O).
</li>
<li>
<strong>heap</strong>: Heap profile reports memory allocation samples;
used to monitor current and historical memory usage, and to check for memory leaks.
</li>
<li>
<strong>threadcreate</strong>: Thread creation profile reports the sections
of the program that lead the creation of new OS threads.
</li>
<li>
<strong>goroutine</strong>: Goroutine profile reports the stack traces of all current goroutines.
</li>
<li>
<strong>block</strong>: Block profile shows where goroutines block waiting on synchronization
primitives (including timer channels). Block profile is not enabled by default;
use <code>runtime.SetBlockProfileRate</code> to enable it.
</li>
<li>
<strong>mutex</strong>: Mutex profile reports the lock contentions. When you think your
CPU is not fully utilized due to a mutex contention, use this profile. Mutex profile
is not enabled by default, see <code>runtime.SetMutexProfileFraction</code> to enable it.
</li>
</ul>
<p><strong>What other profilers can I use to profile Go programs?</strong></p>
<p>
On Linux, <a href="https://perf.wiki.kernel.org/index.php/Tutorial">perf tools</a>
can be used for profiling Go programs. Perf can profile
and unwind cgo/SWIG code and kernel, so it can be useful to get insights into
native/kernel performance bottlenecks. On macOS,
<a href="https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/InstrumentsUserGuide/">Instruments</a>
suite can be used profile Go programs.
</p>
<p><strong>Can I profile my production services?</strong></p>
<p>Yes. It is safe to profile programs in production, but enabling
some profiles (e.g. the CPU profile) adds cost. You should expect to
see performance downgrade. The performance penalty can be estimated
by measuring the overhead of the profiler before turning it on in
production.
</p>
<p>
You may want to periodically profile your production services.
Especially in a system with many replicas of a single process, selecting
a random replica periodically is a safe option.
Select a production process, profile it for
X seconds for every Y seconds and save the results for visualization and
analysis; then repeat periodically. Results may be manually and/or automatically
reviewed to find problems.
Collection of profiles can interfere with each other,
so it is recommended to collect only a single profile at a time.
</p>
<p>
<strong>What are the best ways to visualize the profiling data?</strong>
</p>
<p>
The Go tools provide text, graph, and <a href="http://valgrind.org/docs/manual/cl-manual.html">callgrind</a>
visualization of the profile data using
<code><a href="https://github.com/google/pprof/blob/master/doc/README.md">go tool pprof</a></code>.
Read <a href="https://blog.golang.org/profiling-go-programs">Profiling Go programs</a>
to see them in action.
</p>
<p>
<img width="800" src="https://storage.googleapis.com/golangorg-assets/pprof-text.png">
<br>
<small>Listing of the most expensive calls as text.</small>
</p>
<p>
<img width="800" src="https://storage.googleapis.com/golangorg-assets/pprof-dot.png">
<br>
<small>Visualization of the most expensive calls as a graph.</small>
</p>
<p>Weblist view displays the expensive parts of the source line by line in
an HTML page. In the following example, 530ms is spent in the
<code>runtime.concatstrings</code> and cost of each line is presented
in the listing.</p>
<p>
<img width="800" src="https://storage.googleapis.com/golangorg-assets/pprof-weblist.png">
<br>
<small>Visualization of the most expensive calls as weblist.</small>
</p>
<p>
Another way to visualize profile data is a <a href="http://www.brendangregg.com/flamegraphs.html">flame graph</a>.
Flame graphs allow you to move in a specific ancestry path, so you can zoom
in/out of specific sections of code.
The <a href="https://github.com/google/pprof">upstream pprof</a>
has support for flame graphs.
</p>
<p>
<img width="800" src="https://storage.googleapis.com/golangorg-assets/flame.png">
<br>
<small>Flame graphs offers visualization to spot the most expensive code-paths.</small>
</p>
<p><strong>Am I restricted to the built-in profiles?</strong></p>
<p>
Additionally to what is provided by the runtime, Go users can create
their custom profiles via <a href="/pkg/runtime/pprof/#Profile">pprof.Profile</a>
and use the existing tools to examine them.
</p>
<p><strong>Can I serve the profiler handlers (/debug/pprof/...) on a different path and port?</strong></p>
<p>
Yes. The <code>net/http/pprof</code> package registers its handlers to the default
mux by default, but you can also register them yourself by using the handlers
exported from the package.
</p>
<p>
For example, the following example will serve the pprof.Profile
handler on :7777 at /custom_debug_path/profile:
</p>
<p>
<pre>
package main
import (
"log"
"net/http"
"net/http/pprof"
)
func main() {
mux := http.NewServeMux()
mux.HandleFunc("/custom_debug_path/profile", pprof.Profile)
log.Fatal(http.ListenAndServe(":7777", mux))
}
</pre>
</p>
<h2 id="tracing">Tracing</h2>
<p>
Tracing is a way to instrument code to analyze latency throughout the
lifecycle of a chain of calls. Go provides
<a href="https://godoc.org/golang.org/x/net/trace">golang.org/x/net/trace</a>
package as a minimal tracing backend per Go node and provides a minimal
instrumentation library with a simple dashboard. Go also provides
an execution tracer to trace the runtime events within an interval.
</p>
<p>Tracing enables us to:</p>
<ul>
<li>Instrument and analyze application latency in a Go process.</li>
<li>Measure the cost of specific calls in a long chain of calls.</li>
<li>Figure out the utilization and performance improvements.
Bottlenecks are not always obvious without tracing data.</li>
</ul>
<p>
In monolithic systems, it's relatively easy to collect diagnostic data
from the building blocks of a program. All modules live within one
process and share common resources to report logs, errors, and other
diagnostic information. Once your system grows beyond a single process and
starts to become distributed, it becomes harder to follow a call starting
from the front-end web server to all of its back-ends until a response is
returned back to the user. This is where distributed tracing plays a big
role to instrument and analyze your production systems.
</p>
<p>
Distributed tracing is a way to instrument code to analyze latency throughout
the lifecycle of a user request. When a system is distributed and when
conventional profiling and debugging tools dont scale, you might want
to use distributed tracing tools to analyze the performance of your user
requests and RPCs.
</p>
<p>Distributed tracing enables us to:</p>
<ul>
<li>Instrument and profile application latency in a large system.</li>
<li>Track all RPCs within the lifecycle of a user request and see integration issues
that are only visible in production.</li>
<li>Figure out performance improvements that can be applied to our systems.
Many bottlenecks are not obvious before the collection of tracing data.</li>
</ul>
<p>The Go ecosystem provides various distributed tracing libraries per tracing system
and backend-agnostic ones.</p>
<p><strong>Is there a way to automatically intercept each function call and create traces?</strong></p>
<p>
Go doesnt provide a way to automatically intercept every function call and create
trace spans. You need to manually instrument your code to create, end, and annotate spans.
</p>
<p><strong>How should I propagate trace headers in Go libraries?</strong></p>
<p>
You can propagate trace identifiers and tags in the
<a href="/pkg/context#Context"><code>context.Context</code></a>.
There is no canonical trace key or common representation of trace headers
in the industry yet. Each tracing provider is responsible for providing propagation
utilities in their Go libraries.
</p>
<p>
<strong>What other low-level events from the standard library or
runtime can be included in a trace?</strong>
</p>
<p>
The standard library and runtime are trying to expose several additional APIs
to notify on low level internal events. For example,
<a href="/pkg/net/http/httptrace#ClientTrace"><code>httptrace.ClientTrace</code></a>
provides APIs to follow low-level events in the life cycle of an outgoing request.
There is an ongoing effort to retrieve low-level runtime events from
the runtime execution tracer and allow users to define and record their user events.
</p>
<h2 id="debugging">Debugging</h2>
<p>
Debugging is the process of identifying why a program misbehaves.
Debuggers allow us to understand a programs execution flow and current state.
There are several styles of debugging; this section will only focus on attaching
a debugger to a program and core dump debugging.
</p>
<p>Go users mostly use the following debuggers:</p>
<ul>
<li>
<a href="https://github.com/derekparker/delve">Delve</a>:
Delve is a debugger for the Go programming language. It has
support for Gos runtime concepts and built-in types. Delve is
trying to be a fully featured reliable debugger for Go programs.
</li>
<li>
<a href="https://golang.org/doc/gdb">GDB</a>:
Go provides GDB support via the standard Go compiler and Gccgo.
The stack management, threading, and runtime contain aspects that differ
enough from the execution model GDB expects that they can confuse the
debugger, even when the program is compiled with gccgo. Even though
GDB can be used to debug Go programs, it is not ideal and may
create confusion.
</li>
</ul>
<p><strong>How well do debuggers work with Go programs?</strong></p>
<p>
The <code>gc</code> compiler performs optimizations such as
function inlining and variable registerization. These optimizations
sometimes make debugging with debuggers harder. There is an ongoing
effort to improve the quality of the DWARF information generated for
optimized binaries. Until those improvements are available, we recommend
disabling optimizations when building the code being debugged. The following
command builds a package with no compiler optimizations:
<p>
<pre>
$ go build -gcflags=all="-N -l"
</pre>
</p>
As part of the improvement effort, Go 1.10 introduced a new compiler
flag <code>-dwarflocationlists</code>. The flag causes the compiler to
add location lists that helps debuggers work with optimized binaries.
The following command builds a package with optimizations but with
the DWARF location lists:
<p>
<pre>
$ go build -gcflags="-dwarflocationlists=true"
</pre>
</p>
<p><strong>Whats the recommended debugger user interface?</strong></p>
<p>
Even though both delve and gdb provides CLIs, most editor integrations
and IDEs provides debugging-specific user interfaces.
</p>
<p><strong>Is it possible to do postmortem debugging with Go programs?</strong></p>
<p>
A core dump file is a file that contains the memory dump of a running
process and its process status. It is primarily used for post-mortem
debugging of a program and to understand its state
while it is still running. These two cases make debugging of core
dumps a good diagnostic aid to postmortem and analyze production
services. It is possible to obtain core files from Go programs and
use delve or gdb to debug, see the
<a href="https://golang.org/wiki/CoreDumpDebugging">core dump debugging</a>
page for a step-by-step guide.
</p>
<h2 id="runtime">Runtime statistics and events</h2>
<p>
The runtime provides stats and reporting of internal events for
users to diagnose performance and utilization problems at the
runtime level.
</p>
<p>
Users can monitor these stats to better understand the overall
health and performance of Go programs.
Some frequently monitored stats and states:
</p>
<ul>
<li><code><a href="/pkg/runtime/#ReadMemStats">runtime.ReadMemStats</a></code>
reports the metrics related to heap
allocation and garbage collection. Memory stats are useful for
monitoring how much memory resources a process is consuming,
whether the process can utilize memory well, and to catch
memory leaks.</li>
<li><code><a href="/pkg/runtime/debug/#ReadGCStats">debug.ReadGCStats</a></code>
reads statistics about garbage collection.
It is useful to see how much of the resources are spent on GC pauses.
It also reports a timeline of garbage collector pauses and pause time percentiles.</li>
<li><code><a href="/pkg/runtime/debug/#Stack">debug.Stack</a></code>
returns the current stack trace. Stack trace
is useful to see how many goroutines are currently running,
what they are doing, and whether they are blocked or not.</li>
<li><code><a href="/pkg/runtime/debug/#WriteHeapDump">debug.WriteHeapDump</a></code>
suspends the execution of all goroutines
and allows you to dump the heap to a file. A heap dump is a
snapshot of a Go process' memory at a given time. It contains all
allocated objects as well as goroutines, finalizers, and more.</li>
<li><code><a href="/pkg/runtime#NumGoroutine">runtime.NumGoroutine</a></code>
returns the number of current goroutines.
The value can be monitored to see whether enough goroutines are
utilized, or to detect goroutine leaks.</li>
</ul>
<h3 id="execution-tracer">Execution tracer</h3>
<p>Go comes with a runtime execution tracer to capture a wide range
of runtime events. Scheduling, syscall, garbage collections,
heap size, and other events are collected by runtime and available
for visualization by the go tool trace. Execution tracer is a tool
to detect latency and utilization problems. You can examine how well
the CPU is utilized, and when networking or syscalls are a cause of
preemption for the goroutines.</p>
<p>Tracer is useful to:</p>
<ul>
<li>Understand how your goroutines execute.</li>
<li>Understand some of the core runtime events such as GC runs.</li>
<li>Identify poorly parallelized execution.</li>
</ul>
<p>However, it is not great for identifying hot spots such as
analyzing the cause of excessive memory or CPU usage.
Use profiling tools instead first to address them.</p>
<p>
<img width="800" src="https://storage.googleapis.com/golangorg-assets/tracer-lock.png">
</p>
<p>Above, the go tool trace visualization shows the execution started
fine, and then it became serialized. It suggests that there might
be lock contention for a shared resource that creates a bottleneck.</p>
<p>See <a href="https://golang.org/cmd/trace/"><code>go</code> <code>tool</code> <code>trace</code></a>
to collect and analyze runtime traces.
</p>
<h3 id="godebug">GODEBUG</h3>
<p>Runtime also emits events and information if
<a href="https://golang.org/pkg/runtime/#hdr-Environment_Variables">GODEBUG</a>
environmental variable is set accordingly.</p>
<ul>
<li>GODEBUG=gctrace=1 prints garbage collector events at
each collection, summarizing the amount of memory collected
and the length of the pause.</li>
<li>GODEBUG=schedtrace=X prints scheduling events every X milliseconds.</li>
</ul>
<p>The GODEBUG environmental variable can be used to disable use of
instruction set extensions in the standard library and runtime.</p>
<ul>
<li>GODEBUG=cpu.all=off disables the use of all optional
instruction set extensions.</li>
<li>GODEBUG=cpu.<em>extension</em>=off disables use of instructions from the
specified instruction set extension.<br>
<em>extension</em> is the lower case name for the instruction set extension
such as <em>sse41</em> or <em>avx</em>.</li>
</ul>

227
doc/docs.html Normal file
View File

@@ -0,0 +1,227 @@
<!--{
"Title": "Documentation",
"Path": "/doc/",
"Template": true
}-->
<p>
The Go programming language is an open source project to make programmers more
productive.
</p>
<p>
Go is expressive, concise, clean, and efficient. Its concurrency
mechanisms make it easy to write programs that get the most out of multicore
and networked machines, while its novel type system enables flexible and
modular program construction. Go compiles quickly to machine code yet has the
convenience of garbage collection and the power of run-time reflection. It's a
fast, statically typed, compiled language that feels like a dynamically typed,
interpreted language.
</p>
<div id="manual-nav"></div>
<h2>Installing Go</h2>
<h3><a href="/doc/install">Getting Started</a></h3>
<p>
Instructions for downloading and installing the Go compilers, tools, and
libraries.
</p>
<h2 id="learning">Learning Go</h2>
<img class="gopher" src="/doc/gopher/doc.png"/>
<h3 id="go_tour">
{{if $.GoogleCN}}
A Tour of Go
{{else}}
<a href="//tour.golang.org/">A Tour of Go</a>
{{end}}
</h3>
<p>
An interactive introduction to Go in three sections.
The first section covers basic syntax and data structures; the second discusses
methods and interfaces; and the third introduces Go's concurrency primitives.
Each section concludes with a few exercises so you can practice what you've
learned. You can {{if not $.GoogleCN}}<a href="//tour.golang.org/">take the tour
online</a> or{{end}} install it locally with:
</p>
<p>
<pre>
$ go get golang.org/x/tour/gotour
</pre>
This will place the <code>gotour</code> binary in your workspace's <code>bin</code> directory.
</p>
<h3 id="code"><a href="code.html">How to write Go code</a></h3>
<p>
{{if not $.GoogleCN}}
Also available as a <a href="//www.youtube.com/watch?v=XCsL89YtqCs">screencast</a>, this
{{else}}
This
{{end}}
doc explains how to use the <a href="/cmd/go/">go command</a>
to fetch, build, and install packages, commands, and run tests.
</p>
<h3 id="editors"><a href="editors.html">Editor plugins and IDEs</a></h3>
<p>
A document that summarizes commonly used editor plugins and IDEs with
Go support.
</p>
<h3 id="effective_go"><a href="effective_go.html">Effective Go</a></h3>
<p>
A document that gives tips for writing clear, idiomatic Go code.
A must read for any new Go programmer. It augments the tour and
the language specification, both of which should be read first.
</p>
<h3 id="faq"><a href="/doc/faq">Frequently Asked Questions (FAQ)</a></h3>
<p>
Answers to common questions about Go.
</p>
<h3 id="wiki"><a href="/wiki">The Go Wiki</a></h3>
<p>A wiki maintained by the Go community.</p>
<h4 id="learn_more">More</h4>
<p>
See the <a href="/wiki/Learn">Learn</a> page at the <a href="/wiki">Wiki</a>
for more Go learning resources.
</p>
<h2 id="references">References</h2>
<h3 id="pkg"><a href="/pkg/">Package Documentation</a></h3>
<p>
The documentation for the Go standard library.
</p>
<h3 id="cmd"><a href="/doc/cmd">Command Documentation</a></h3>
<p>
The documentation for the Go tools.
</p>
<h3 id="spec"><a href="/ref/spec">Language Specification</a></h3>
<p>
The official Go Language specification.
</p>
<h3 id="go_mem"><a href="/ref/mem">The Go Memory Model</a></h3>
<p>
A document that specifies the conditions under which reads of a variable in
one goroutine can be guaranteed to observe values produced by writes to the
same variable in a different goroutine.
</p>
<h3 id="release"><a href="/doc/devel/release.html">Release History</a></h3>
<p>A summary of the changes between Go releases.</p>
<h2 id="articles">Articles</h2>
{{if not $.GoogleCN}}
<h3 id="blog"><a href="//blog.golang.org/">The Go Blog</a></h3>
<p>The official blog of the Go project, featuring news and in-depth articles by
the Go team and guests.</p>
{{end}}
<h4>Codewalks</h4>
<p>
Guided tours of Go programs.
</p>
<ul>
<li><a href="/doc/codewalk/functions">First-Class Functions in Go</a></li>
<li><a href="/doc/codewalk/markov">Generating arbitrary text: a Markov chain algorithm</a></li>
<li><a href="/doc/codewalk/sharemem">Share Memory by Communicating</a></li>
<li><a href="/doc/articles/wiki/">Writing Web Applications</a> - building a simple web application.</li>
</ul>
{{if not $.GoogleCN}}
<h4>Language</h4>
<ul>
<li><a href="/blog/json-rpc-tale-of-interfaces">JSON-RPC: a tale of interfaces</a></li>
<li><a href="/blog/gos-declaration-syntax">Go's Declaration Syntax</a></li>
<li><a href="/blog/defer-panic-and-recover">Defer, Panic, and Recover</a></li>
<li><a href="/blog/go-concurrency-patterns-timing-out-and">Go Concurrency Patterns: Timing out, moving on</a></li>
<li><a href="/blog/go-slices-usage-and-internals">Go Slices: usage and internals</a></li>
<li><a href="/blog/gif-decoder-exercise-in-go-interfaces">A GIF decoder: an exercise in Go interfaces</a></li>
<li><a href="/blog/error-handling-and-go">Error Handling and Go</a></li>
<li><a href="/blog/organizing-go-code">Organizing Go code</a></li>
</ul>
<h4>Packages</h4>
<ul>
<li><a href="/blog/json-and-go">JSON and Go</a> - using the <a href="/pkg/encoding/json/">json</a> package.</li>
<li><a href="/blog/gobs-of-data">Gobs of data</a> - the design and use of the <a href="/pkg/encoding/gob/">gob</a> package.</li>
<li><a href="/blog/laws-of-reflection">The Laws of Reflection</a> - the fundamentals of the <a href="/pkg/reflect/">reflect</a> package.</li>
<li><a href="/blog/go-image-package">The Go image package</a> - the fundamentals of the <a href="/pkg/image/">image</a> package.</li>
<li><a href="/blog/go-imagedraw-package">The Go image/draw package</a> - the fundamentals of the <a href="/pkg/image/draw/">image/draw</a> package.</li>
</ul>
{{end}}
<h4>Tools</h4>
<ul>
<li><a href="/doc/articles/go_command.html">About the Go command</a> - why we wrote it, what it is, what it's not, and how to use it.</li>
<li><a href="/doc/gdb">Debugging Go Code with GDB</a></li>
<li><a href="/doc/articles/race_detector.html">Data Race Detector</a> - a manual for the data race detector.</li>
<li><a href="/doc/asm">A Quick Guide to Go's Assembler</a> - an introduction to the assembler used by Go.</li>
{{if not $.GoogleCN}}
<li><a href="/blog/c-go-cgo">C? Go? Cgo!</a> - linking against C code with <a href="/cmd/cgo/">cgo</a>.</li>
<li><a href="/blog/godoc-documenting-go-code">Godoc: documenting Go code</a> - writing good documentation for <a href="/cmd/godoc/">godoc</a>.</li>
<li><a href="/blog/profiling-go-programs">Profiling Go Programs</a></li>
<li><a href="/blog/race-detector">Introducing the Go Race Detector</a> - an introduction to the race detector.</li>
{{end}}
</ul>
<h4 id="articles_more">More</h4>
<p>
See the <a href="/wiki/Articles">Articles page</a> at the
<a href="/wiki">Wiki</a> for more Go articles.
</p>
{{if not $.GoogleCN}}
<h2 id="talks">Talks</h2>
<img class="gopher" src="/doc/gopher/talks.png"/>
<h3 id="video_tour_of_go"><a href="http://research.swtch.com/gotour">A Video Tour of Go</a></h3>
<p>
Three things that make Go fast, fun, and productive:
interfaces, reflection, and concurrency. Builds a toy web crawler to
demonstrate these.
</p>
<h3 id="go_code_that_grows"><a href="//vimeo.com/53221560">Code that grows with grace</a></h3>
<p>
One of Go's key design goals is code adaptability; that it should be easy to take a simple design and build upon it in a clean and natural way. In this talk Andrew Gerrand describes a simple "chat roulette" server that matches pairs of incoming TCP connections, and then use Go's concurrency mechanisms, interfaces, and standard library to extend it with a web interface and other features. While the function of the program changes dramatically, Go's flexibility preserves the original design as it grows.
</p>
<h3 id="go_concurrency_patterns"><a href="//www.youtube.com/watch?v=f6kdp27TYZs">Go Concurrency Patterns</a></h3>
<p>
Concurrency is the key to designing high performance network services. Go's concurrency primitives (goroutines and channels) provide a simple and efficient means of expressing concurrent execution. In this talk we see how tricky concurrency problems can be solved gracefully with simple Go code.
</p>
<h3 id="advanced_go_concurrency_patterns"><a href="//www.youtube.com/watch?v=QDDwwePbDtw">Advanced Go Concurrency Patterns</a></h3>
<p>
This talk expands on the <i>Go Concurrency Patterns</i> talk to dive deeper into Go's concurrency primitives.
</p>
<h4 id="talks_more">More</h4>
<p>
See the <a href="/talks">Go Talks site</a> and <a href="/wiki/GoTalks">wiki page</a> for more Go talks.
</p>
{{end}}
<h2 id="nonenglish">Non-English Documentation</h2>
<p>
See the <a href="/wiki/NonEnglish">NonEnglish</a> page
at the <a href="/wiki">Wiki</a> for localized
documentation.
</p>

View File

@@ -9,7 +9,7 @@
This document lists commonly used editor plugins and IDEs from the Go ecosystem
that make Go development more productive and seamless.
A comprehensive list of editor support and IDEs for Go development is available at
<a href="https://golang.org/wiki/IDEsAndTextEditorPlugins">the wiki</a>.
<a href="http://golang.org/wiki/IDEsAndTextEditorPlugins">the wiki</a>.
</p>
<h2 id="options">Options</h2>
@@ -20,16 +20,212 @@ editing, navigation, testing, and debugging experience.
<ul>
<li><a href="https://github.com/fatih/vim-go">vim</a>: vim-go plugin provides Go programming language support</li>
<li><a href="https://marketplace.visualstudio.com/items?itemName=golang.go">Visual Studio Code</a>:
<li><a href="https://marketplace.visualstudio.com/items?itemName=lukehoban.Go">Visual Studio Code</a>:
Go extension provides support for the Go programming language</li>
<li><a href="https://www.jetbrains.com/go">GoLand</a>: GoLand is distributed either as a standalone IDE
or as a plugin for IntelliJ IDEA Ultimate</li>
<li><a href="https://www.jetbrains.com/go">Gogland</a>: Gogland is distributed either as a standalone IDE
or as a plugin for the commercial IntelliJ Platform IDEs</li>
<li><a href="https://atom.io/packages/go-plus">Atom</a>: Go-Plus is an Atom package that provides enhanced Go support</li>
</ul>
<p>
Note that these are only a few top solutions; a more comprehensive
Note that these are only a few top solutions; a more comphensive
community-maintained list of
<a href="https://github.com/golang/go/wiki/IDEsAndTextEditorPlugins">IDEs and text editor plugins</a>
is available at the Wiki.
</p>
<p>
Each development environment integrates a number of Go-specific tools.
The following feature matrix lists and compares the most significant features.
</p>
<table class="features-matrix">
<tr>
<th></th>
<th><img title="Vim Go" src="/doc/editors/vimgo.png"><br>vim</th>
<th><img title="Visual Studio Code" src="/doc/editors/vscodego.png"><br>Visual Studio Code</th>
<th><img title="Gogland" src="/doc/editors/gogland.png"><br>Gogland</th>
<th><img title="Go-Plus" src="/doc/editors/go-plus.png"><br>Atom</th>
</tr>
<tr>
<td class="feature-row" colspan="5">Editing features</td>
</tr>
<tr>
<td>Build and run from the editor/IDE</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr>
<td>Autocompletion of identifers (variable, method, and function names)</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr>
<td>Type-aware autocompletion</td>
<td class="no">No</td>
<td class="no">No</td>
<td class="yes">Yes</td>
<td class="no">No</td>
</tr>
<tr>
<td>Rename identifiers</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr>
<td>Auto format, build, vet, and lint on save</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes<sup>1</sup></td>
<td class="yes">Yes</td>
</tr>
<tr>
<td>Auto insert import paths and remove unused on save</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes<sup>2</sup></td>
<td class="yes">Yes</td>
</tr>
<tr>
<td>Auto generate JSON, XML tags for struct fields</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr>
<td class="feature-row" colspan="5">Navigation features</td>
</tr>
<tr>
<td>Display documentation inline, or open godoc in browser</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr>
<td>Switch between <code>*.go</code> and <code>*_test.go</code> file</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">No</td>
</tr>
<tr>
<td>Jump to definition and referees</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr>
<td>Look up for interface implementations</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr>
<td>Search for callers and callees</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr>
<td class="feature-row" colspan="5">Testing and debugging features</td>
</tr>
<tr>
<td>Debugger support</td>
<td class="no">No</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes<sup>3</sup></td>
</tr>
<tr>
<td>Run a single test case, all tests from file, or all tests from a package</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="no">No</td>
</tr>
<tr>
<td>Auto generate tests for packages, files and identifiers</td>
<td class="no">No</td>
<td class="yes">Yes</td>
<td class="no">No</td>
<td class="no">No</td>
</tr>
<tr>
<td>Debug tests</td>
<td class="no">No</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes<sup>3</sup></td>
</tr>
<tr>
<td>Display test coverage</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
<td class="yes">Yes</td>
</tr>
<tr class="download">
<td></td>
<td><a href="https://github.com/fatih/vim-go">Install<a/></td>
<td><a href="https://marketplace.visualstudio.com/items?itemName=lukehoban.Go">Install<a/></td>
<td><a href="https://www.jetbrains.com/go">Install<a/></td>
<td><a href="https://atom.io/packages/go-plus">Install</a></td>
</tr>
</table>
<p>
<sup>1</sup>Possible when enabled via Settings &gt; Go &gt; On Save, <code>go</code> <code>vet</code> and <code>golint</code> are available via plugins. Also runs tests on save if configured.
<br>
<sup>2</sup>Additionally, user input can disambiguate when two or more options are available.
<br>
<sup>3</sup>Available if the <a href="https://atom.io/packages/go-debug">go-debug</a> package is installed.
</p>
</div>
<style>
.features-matrix {
min-width: 800px;
border-collapse: collapse;
}
.features-matrix th {
width: 60px;
text-align: center;
font-size: 14px;
color: #666;
}
.features-matrix th img {
width: 48px;
}
.features-matrix .yes {
text-align: center;
}
.features-matrix .no {
text-align: center;
background-color: #ffe9e9;
}
.features-matrix .download {
font-weight: bold;
text-align: center;
}
.features-matrix td {
padding: 11px 5px 11px 5px;
border-bottom: solid 1px #ebebeb;
}
.features-matrix .feature-row {
background-color: #ebebeb;
font-weight: bold;
}
</style>

BIN
doc/editors/go-plus.png Normal file

Binary file not shown.

After

Width:  |  Height:  |  Size: 15 KiB

BIN
doc/editors/gogland.png Normal file

Binary file not shown.

After

Width:  |  Height:  |  Size: 9.2 KiB

BIN
doc/editors/vimgo.png Normal file

Binary file not shown.

After

Width:  |  Height:  |  Size: 7.4 KiB

BIN
doc/editors/vscodego.png Normal file

Binary file not shown.

After

Width:  |  Height:  |  Size: 3.3 KiB

View File

@@ -246,16 +246,14 @@ func Compile(str string) (*Regexp, error) {
<p>
If every doc comment begins with the name of the item it describes,
you can use the <a href="/cmd/go/#hdr-Show_documentation_for_package_or_symbol">doc</a>
subcommand of the <a href="/cmd/go/">go</a> tool
and run the output through <code>grep</code>.
the output of <code>godoc</code> can usefully be run through <code>grep</code>.
Imagine you couldn't remember the name "Compile" but were looking for
the parsing function for regular expressions, so you ran
the command,
</p>
<pre>
$ go doc -all regexp | grep -i parse
$ godoc regexp | grep -i parse
</pre>
<p>
@@ -266,10 +264,10 @@ which recalls the word you're looking for.
</p>
<pre>
$ go doc -all regexp | grep -i parse
$ godoc regexp | grep parse
Compile parses a regular expression and returns, if successful, a Regexp
MustCompile is like Compile but panics if the expression cannot be parsed.
parsed. It simplifies safe initialization of global variables holding
cannot be parsed. It simplifies safe initialization of global variables
$
</pre>
@@ -624,7 +622,7 @@ if it has already been declared, provided:
<li>this declaration is in the same scope as the existing declaration of <code>v</code>
(if <code>v</code> is already declared in an outer scope, the declaration will create a new variable §),</li>
<li>the corresponding value in the initialization is assignable to <code>v</code>, and</li>
<li>there is at least one other variable that is created by the declaration.</li>
<li>there is at least one other variable in the declaration that is being declared anew.</li>
</ul>
<p>
@@ -1404,11 +1402,11 @@ the moment, the following snippet would also read the first 32 bytes of the buff
var err error
for i := 0; i &lt; 32; i++ {
nbytes, e := f.Read(buf[i:i+1]) // Read one byte.
n += nbytes
if nbytes == 0 || e != nil {
err = e
break
}
n += nbytes
}
</pre>
<p>
@@ -1433,7 +1431,9 @@ func Append(slice, data []byte) []byte {
slice = newSlice
}
slice = slice[0:l+len(data)]
copy(slice[l:], data)
for i, c := range data {
slice[l+i] = c
}
return slice
}
</pre>
@@ -1521,7 +1521,7 @@ for i := range picture {
<p>
Maps are a convenient and powerful built-in data structure that associate
values of one type (the <em>key</em>) with values of another type
(the <em>element</em> or <em>value</em>).
(the <em>element</em> or <em>value</em>)
The key can be of any type for which the equality operator is defined,
such as integers,
floating point and complex numbers,
@@ -1680,15 +1680,13 @@ maps. Here is a print statement for the time zone map defined in the previous s
fmt.Printf("%v\n", timeZone) // or just fmt.Println(timeZone)
</pre>
<p>
which gives output:
which gives output
</p>
<pre>
map[CST:-21600 EST:-18000 MST:-25200 PST:-28800 UTC:0]
map[CST:-21600 PST:-28800 EST:-18000 UTC:0 MST:-25200]
</pre>
<p>
For maps, <code>Printf</code> and friends sort the output lexicographically by key.
</p>
<p>
For maps the keys may be output in any order, of course.
When printing a struct, the modified format <code>%+v</code> annotates the
fields of the structure with their names, and for any value the alternate
format <code>%#v</code> prints the value in full Go syntax.
@@ -1712,7 +1710,7 @@ prints
&amp;{7 -2.35 abc def}
&amp;{a:7 b:-2.35 c:abc def}
&amp;main.T{a:7, b:-2.35, c:"abc\tdef"}
map[string]int{"CST":-21600, "EST":-18000, "MST":-25200, "PST":-28800, "UTC":0}
map[string] int{"CST":-21600, "PST":-28800, "EST":-18000, "UTC":0, "MST":-25200}
</pre>
<p>
(Note the ampersands.)
@@ -1735,7 +1733,7 @@ fmt.Printf(&quot;%T\n&quot;, timeZone)
prints
</p>
<pre>
map[string]int
map[string] int
</pre>
<p>
If you want to control the default format for a custom type, all that's required is to define
@@ -2108,14 +2106,12 @@ In this contrived example <code>Sequence</code> satisfies both.
<p>
The <code>String</code> method of <code>Sequence</code> is recreating the
work that <code>Sprint</code> already does for slices.
(It also has complexity O(N²), which is poor.) We can share the
effort (and also speed it up) if we convert the <code>Sequence</code> to a plain
work that <code>Sprint</code> already does for slices. We can share the
effort if we convert the <code>Sequence</code> to a plain
<code>[]int</code> before calling <code>Sprint</code>.
</p>
<pre>
func (s Sequence) String() string {
s = s.Copy()
sort.Sort(s)
return fmt.Sprint([]int(s))
}
@@ -2142,7 +2138,6 @@ type Sequence []int
// Method for printing - sorts the elements before printing
func (s Sequence) String() string {
s = s.Copy()
sort.IntSlice(s).Sort()
return fmt.Sprint([]int(s))
}
@@ -2282,8 +2277,8 @@ The <code>crypto/cipher</code> interfaces look like this:
<pre>
type Block interface {
BlockSize() int
Encrypt(dst, src []byte)
Decrypt(dst, src []byte)
Encrypt(src, dst []byte)
Decrypt(src, dst []byte)
}
type Stream interface {
@@ -2336,9 +2331,10 @@ of the request from the client.
</p>
<p>
For brevity, let's ignore POSTs and assume HTTP requests are always
GETs; that simplification does not affect the way the handlers are set up.
Here's a trivial implementation of a handler to count the number of times
the page is visited.
GETs; that simplification does not affect the way the handlers are
set up. Here's a trivial but complete implementation of a handler to
count the number of times the
page is visited.
</p>
<pre>
// Simple counter server.
@@ -2354,11 +2350,6 @@ func (ctr *Counter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
<p>
(Keeping with our theme, note how <code>Fprintf</code> can print to an
<code>http.ResponseWriter</code>.)
In a real server, access to <code>ctr.n</code> would need protection from
concurrent access.
See the <code>sync</code> and <code>atomic</code> packages for suggestions.
</p>
<p>
For reference, here's how to attach such a server to a node on the URL tree.
</p>
<pre>
@@ -2699,7 +2690,8 @@ type ReadWriter interface {
<p>
This says just what it looks like: A <code>ReadWriter</code> can do
what a <code>Reader</code> does <em>and</em> what a <code>Writer</code>
does; it is a union of the embedded interfaces.
does; it is a union of the embedded interfaces (which must be disjoint
sets of methods).
Only interfaces can be embedded within interfaces.
</p>
<p>
@@ -2772,7 +2764,7 @@ type Job struct {
}
</pre>
<p>
The <code>Job</code> type now has the <code>Print</code>, <code>Printf</code>, <code>Println</code>
The <code>Job</code> type now has the <code>Log</code>, <code>Logf</code>
and other
methods of <code>*log.Logger</code>. We could have given the <code>Logger</code>
a field name, of course, but it's not necessary to do so. And now, once
@@ -2780,7 +2772,7 @@ initialized, we can
log to the <code>Job</code>:
</p>
<pre>
job.Println("starting now...")
job.Log("starting now...")
</pre>
<p>
The <code>Logger</code> is a regular field of the <code>Job</code> struct,
@@ -2800,15 +2792,15 @@ job := &amp;Job{command, log.New(os.Stderr, "Job: ", log.Ldate)}
<p>
If we need to refer to an embedded field directly, the type name of the field,
ignoring the package qualifier, serves as a field name, as it did
in the <code>Read</code> method of our <code>ReadWriter</code> struct.
in the <code>Read</code> method of our <code>ReaderWriter</code> struct.
Here, if we needed to access the
<code>*log.Logger</code> of a <code>Job</code> variable <code>job</code>,
we would write <code>job.Logger</code>,
which would be useful if we wanted to refine the methods of <code>Logger</code>.
</p>
<pre>
func (job *Job) Printf(format string, args ...interface{}) {
job.Logger.Printf("%q: %s", job.Command, fmt.Sprintf(format, args...))
func (job *Job) Logf(format string, args ...interface{}) {
job.Logger.Logf("%q: %s", job.Command, fmt.Sprintf(format, args...))
}
</pre>
<p>
@@ -3598,7 +3590,8 @@ That's left as an exercise for the reader.
<p>
Let's finish with a complete Go program, a web server.
This one is actually a kind of web re-server.
Google provides a service at <code>chart.apis.google.com</code>
Google provides a service at
<a href="http://chart.apis.google.com">http://chart.apis.google.com</a>
that does automatic formatting of data into charts and graphs.
It's hard to use interactively, though,
because you need to put the data into the URL as a query.

View File

@@ -22,7 +22,7 @@ file HACKING</a> in the gofrontend repository.
You must follow the <a href="/doc/contribute.html#copyright">Go copyright
rules</a> for all changes to the gccgo frontend and the associated
libgo library. Code that is part of GCC rather than gccgo must follow
the general <a href="https://gcc.gnu.org/contribute.html">GCC
the general <a href="http://gcc.gnu.org/contribute.html">GCC
contribution rules</a>.
</p>
@@ -30,9 +30,9 @@ contribution rules</a>.
<p>
The master sources for the gccgo frontend may be found at
<a href="https://go.googlesource.com/gofrontend">https://go.googlesource.com/gofrontend</a>.
<a href="http://go.googlesource.com/gofrontend">http://go.googlesource.com/gofrontend</a>.
They are mirrored
at <a href="https://github.com/golang/gofrontend">https://github.com/golang/gofrontend</a>.
at <a href="http://github.com/golang/gofrontend">http://github.com/golang/gofrontend</a>.
The master sources are not buildable by themselves, but only in
conjunction with GCC (in the future, other compilers may be
supported). Changes made to the gccgo frontend are also applied to
@@ -105,7 +105,7 @@ or <code>gcc/testsuite/go.dg</code> directories in the GCC repository.
<p>
Changes to the Go frontend should follow the same process as for the
main Go repository, only for the <code>gofrontend</code> project and
the <code>gofrontend-dev@googlegroups.com</code> mailing list
the <code>gofrontend-dev@googlegroups.com</code> mailing list
rather than the <code>go</code> project and the
<code>golang-dev@googlegroups.com</code> mailing list. Those changes
will then be merged into the GCC sources.

View File

@@ -5,11 +5,11 @@
<p>
This document explains how to use gccgo, a compiler for
the Go language. The gccgo compiler is a new frontend
for GCC, the widely used GNU compiler. Although the
the Go language. The gccgo compiler is a new frontend
for GCC, the widely used GNU compiler. Although the
frontend itself is under a BSD-style license, gccgo is
normally used as part of GCC and is then covered by
the <a href="https://www.gnu.org/licenses/gpl.html">GNU General Public
the <a href="http://www.gnu.org/licenses/gpl.html">GNU General Public
License</a> (the license covers gccgo itself as part of GCC; it
does not cover code generated by gccgo).
</p>
@@ -24,10 +24,10 @@ compiler.
<p>
The simplest way to install gccgo is to install a GCC binary release
built to include Go support. GCC binary releases are available from
<a href="https://gcc.gnu.org/install/binaries.html">various
built to include Go support. GCC binary releases are available from
<a href="http://gcc.gnu.org/install/binaries.html">various
websites</a> and are typically included as part of GNU/Linux
distributions. We expect that most people who build these binaries
distributions. We expect that most people who build these binaries
will include Go support.
</p>
@@ -38,7 +38,7 @@ The GCC 4.7.1 release and all later 4.7 releases include a complete
<p>
Due to timing, the GCC 4.8.0 and 4.8.1 releases are close to but not
identical to Go 1.1. The GCC 4.8.2 release includes a complete Go
identical to Go 1.1. The GCC 4.8.2 release includes a complete Go
1.1.2 implementation.
</p>
@@ -48,51 +48,42 @@ The GCC 4.9 releases include a complete Go 1.2 implementation.
<p>
The GCC 5 releases include a complete implementation of the Go 1.4
user libraries. The Go 1.4 runtime is not fully merged, but that
user libraries. The Go 1.4 runtime is not fully merged, but that
should not be visible to Go programs.
</p>
<p>
The GCC 6 releases include a complete implementation of the Go 1.6.1
user libraries. The Go 1.6 runtime is not fully merged, but that
user libraries. The Go 1.6 runtime is not fully merged, but that
should not be visible to Go programs.
</p>
<p>
The GCC 7 releases include a complete implementation of the Go 1.8.1
user libraries. As with earlier releases, the Go 1.8 runtime is not
fully merged, but that should not be visible to Go programs.
</p>
<p>
The GCC 8 releases include a complete implementation of the Go 1.10.1
release. The Go 1.10 runtime has now been fully merged into the GCC
development sources, and concurrent garbage collection is fully
supported.
</p>
<p>
The GCC 9 releases include a complete implementation of the Go 1.12.2
release.
The GCC 7 releases are expected to include a complete implementation
of the Go 1.8 user libraries. As with earlier releases, the Go 1.8
runtime is not fully merged, but that should not be visible to Go
programs.
</p>
<h2 id="Source_code">Source code</h2>
<p>
If you cannot use a release, or prefer to build gccgo for yourself, the
gccgo source code is accessible via Git. The GCC web site has
<a href="https://gcc.gnu.org/git.html">instructions for getting the GCC
source code</a>. The gccgo source code is included. As a convenience, a
stable version of the Go support is available in the
<code>devel/gccgo</code> branch of the main GCC code repository:
<code>git://gcc.gnu.org/git/gcc.git</code>.
If you cannot use a release, or prefer to build gccgo for
yourself,
the gccgo source code is accessible via Subversion. The
GCC web site
has <a href="http://gcc.gnu.org/svn.html">instructions for getting the
GCC source code</a>. The gccgo source code is included. As a
convenience, a stable version of the Go support is available in
a branch of the main GCC code
repository: <code>svn://gcc.gnu.org/svn/gcc/branches/gccgo</code>.
This branch is periodically updated with stable Go compiler sources.
</p>
<p>
Note that although <code>gcc.gnu.org</code> is the most convenient way
to get the source code for the Go frontend, it is not where the master
sources live. If you want to contribute changes to the Go frontend
sources live. If you want to contribute changes to the Go frontend
compiler, see <a href="/doc/gccgo_contribute.html">Contributing to
gccgo</a>.
</p>
@@ -102,16 +93,16 @@ gccgo</a>.
<p>
Building gccgo is just like building GCC
with one or two additional options. See
the <a href="https://gcc.gnu.org/install/">instructions on the gcc web
site</a>. When you run <code>configure</code>, add the
with one or two additional options. See
the <a href="http://gcc.gnu.org/install/">instructions on the gcc web
site</a>. When you run <code>configure</code>, add the
option <code>--enable-languages=c,c++,go</code> (along with other
languages you may want to build). If you are targeting a 32-bit x86,
languages you may want to build). If you are targeting a 32-bit x86,
then you will want to build gccgo to default to
supporting locked compare and exchange instructions; do this by also
using the <code>configure</code> option <code>--with-arch=i586</code>
(or a newer architecture, depending on where you need your programs to
run). If you are targeting a 64-bit x86, but sometimes want to use
run). If you are targeting a 64-bit x86, but sometimes want to use
the <code>-m32</code> option, then use the <code>configure</code>
option <code>--with-arch-32=i586</code>.
</p>
@@ -120,27 +111,30 @@ option <code>--with-arch-32=i586</code>.
<p>
On x86 GNU/Linux systems the gccgo compiler is able to
use a small discontiguous stack for goroutines. This permits programs
use a small discontiguous stack for goroutines. This permits programs
to run many more goroutines, since each goroutine can use a relatively
small stack. Doing this requires using the gold linker version 2.22
or later. You can either install GNU binutils 2.22 or later, or you
small stack. Doing this requires using the gold linker version 2.22
or later. You can either install GNU binutils 2.22 or later, or you
can build gold yourself.
</p>
<p>
To build gold yourself, build the GNU binutils,
using <code>--enable-gold=default</code> when you run
the <code>configure</code> script. Before building, you must install
the flex and bison packages. A typical sequence would look like
the <code>configure</code> script. Before building, you must install
the flex and bison packages. A typical sequence would look like
this (you can replace <code>/opt/gold</code> with any directory to
which you have write access):
</p>
<pre>
git clone git://sourceware.org/git/binutils-gdb.git
cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src login
[password is "anoncvs"]
[The next command will create a directory named src, not binutils]
cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src co binutils
mkdir binutils-objdir
cd binutils-objdir
../binutils-gdb/configure --enable-gold=default --prefix=/opt/gold
../src/configure --enable-gold=default --prefix=/opt/gold
make
make install
</pre>
@@ -155,8 +149,8 @@ option <code>--with-ld=<var>GOLD_BINARY</var></code>.
<p>
A number of prerequisites are required to build GCC, as
described on
the <a href="https://gcc.gnu.org/install/prerequisites.html">gcc web
site</a>. It is important to install all the prerequisites before
the <a href="http://gcc.gnu.org/install/prerequisites.html">gcc web
site</a>. It is important to install all the prerequisites before
running the gcc <code>configure</code> script.
The prerequisite libraries can be conveniently downloaded using the
script <code>contrib/download_prerequisites</code> in the GCC sources.
@@ -171,7 +165,7 @@ described above):
</p>
<pre>
git clone --branch devel/gccgo git://gcc.gnu.org/git/gcc.git gccgo
svn checkout svn://gcc.gnu.org/svn/gcc/branches/gccgo gccgo
mkdir objdir
cd objdir
../gccgo/configure --prefix=/opt/gccgo --enable-languages=c,c++,go --with-ld=/opt/gold/bin/ld
@@ -182,7 +176,7 @@ make install
<h2 id="Using_gccgo">Using gccgo</h2>
<p>
The gccgo compiler works like other gcc frontends. As of GCC 5 the gccgo
The gccgo compiler works like other gcc frontends. As of GCC 5 the gccgo
installation also includes a version of the <code>go</code> command,
which may be used to build Go programs as described at
<a href="https://golang.org/cmd/go">https://golang.org/cmd/go</a>.
@@ -207,7 +201,7 @@ gccgo -o file file.o
<p>
To run the resulting file, you will need to tell the program where to
find the compiled Go packages. There are a few ways to do this:
find the compiled Go packages. There are a few ways to do this:
</p>
<ul>
@@ -225,11 +219,11 @@ export LD_LIBRARY_PATH
<p>
Here <code>${prefix}</code> is the <code>--prefix</code> option used
when building gccgo. For a binary install this is
normally <code>/usr</code>. Whether to use <code>lib</code>
when building gccgo. For a binary install this is
normally <code>/usr</code>. Whether to use <code>lib</code>
or <code>lib64</code> depends on the target.
Typically <code>lib64</code> is correct for x86_64 systems,
and <code>lib</code> is correct for other systems. The idea is to
and <code>lib</code> is correct for other systems. The idea is to
name the directory where <code>libgo.so</code> is found.
</p>
@@ -324,9 +318,9 @@ objcopy -j .go_export FILE.o FILE.gox
<p>
The gccgo compiler will look in the current
directory for import files. In more complex scenarios you
directory for import files. In more complex scenarios you
may pass the <code>-I</code> or <code>-L</code> option to
gccgo. Both options take directories to search. The
gccgo. Both options take directories to search. The
<code>-L</code> option is also passed to the linker.
</p>
@@ -347,11 +341,11 @@ gccgo -o main main.o mypackage.o # Explicitly links with mypackage.o
<p>
If you use the <code>-g</code> option when you compile, you can run
<code>gdb</code> on your executable. The debugger has only limited
knowledge about Go. You can set breakpoints, single-step,
etc. You can print variables, but they will be printed as though they
had C/C++ types. For numeric types this doesn't matter. Go strings
and interfaces will show up as two-element structures. Go
<code>gdb</code> on your executable. The debugger has only limited
knowledge about Go. You can set breakpoints, single-step,
etc. You can print variables, but they will be printed as though they
had C/C++ types. For numeric types this doesn't matter. Go strings
and interfaces will show up as two-element structures. Go
maps and channels are always represented as C pointers to run-time
structures.
</p>
@@ -398,7 +392,7 @@ assuming that the C pointer does point to 10 elements.
</p>
<p>
A slice in Go is a structure. The current definition is
A slice in Go is a structure. The current definition is
(this is <b style="color: red;">subject to change</b>):
</p>
@@ -412,15 +406,15 @@ struct __go_slice {
<p>
The type of a Go function is a pointer to a struct (this is
<b style="color: red;">subject to change</b>). The first field in the
<b style="color: red;">subject to change</b>). The first field in the
struct points to the code of the function, which will be equivalent to
a pointer to a C function whose parameter types are equivalent, with
an additional trailing parameter. The trailing parameter is the
an additional trailing parameter. The trailing parameter is the
closure, and the argument to pass is a pointer to the Go function
struct.
When a Go function returns more than one value, the C function returns
a struct. For example, these functions are roughly equivalent:
a struct. For example, these functions are roughly equivalent:
</p>
<pre>
@@ -457,7 +451,7 @@ pointer while the C function is still using it.
<p>
Go code can call C functions directly using a Go extension implemented
in gccgo: a function declaration may be preceded by
<code>//extern NAME</code>. For example, here is how the C function
<code>//extern NAME</code>. For example, here is how the C function
<code>open</code> can be declared in Go:
</p>
@@ -517,11 +511,11 @@ the <code>-gccgo</code> option instead.
<p>
Compile your C code as usual, and add the option
<code>-fdump-go-spec=<var>FILENAME</var></code>. This will create the
<code>-fdump-go-spec=<var>FILENAME</var></code>. This will create the
file <code><var>FILENAME</var></code> as a side effect of the
compilation. This file will contain Go declarations for the types,
variables and functions declared in the C code. C types that can not
be represented in Go will be recorded as comments in the Go code. The
compilation. This file will contain Go declarations for the types,
variables and functions declared in the C code. C types that can not
be represented in Go will be recorded as comments in the Go code. The
generated file will not have a <code>package</code> declaration, but
can otherwise be compiled directly by gccgo.
</p>

View File

@@ -166,7 +166,7 @@ providing a complete Go 1.1 implementation.
<h3 id="gc_flag">Command-line flag parsing</h3>
<p>
In the gc toolchain, the compilers and linkers now use the
In the gc tool chain, the compilers and linkers now use the
same command-line flag parsing rules as the Go flag package, a departure
from the traditional Unix flag parsing. This may affect scripts that invoke
the tool directly.
@@ -305,7 +305,7 @@ The race detector is documented in <a href="/doc/articles/race_detector.html">a
<p>
Due to the change of the <a href="#int"><code>int</code></a> to 64 bits and
a new internal <a href="//golang.org/s/go11func">representation of functions</a>,
the arrangement of function arguments on the stack has changed in the gc toolchain.
the arrangement of function arguments on the stack has changed in the gc tool chain.
Functions written in assembly will need to be revised at least
to adjust frame pointer offsets.
</p>
@@ -395,7 +395,7 @@ Run <code>go help test</code> for more information.
The <a href="/cmd/fix/"><code>fix</code></a> command, usually run as
<code>go fix</code>, no longer applies fixes to update code from
before Go 1 to use Go 1 APIs.
To update pre-Go 1 code to Go 1.1, use a Go 1.0 toolchain
To update pre-Go 1 code to Go 1.1, use a Go 1.0 tool chain
to convert the code to Go 1.0 first.
</p>
@@ -427,7 +427,7 @@ To build a file only with Go 1.0.x, use the converse constraint:
<h3 id="platforms">Additional platforms</h3>
<p>
The Go 1.1 toolchain adds experimental support for <code>freebsd/arm</code>,
The Go 1.1 tool chain adds experimental support for <code>freebsd/arm</code>,
<code>netbsd/386</code>, <code>netbsd/amd64</code>, <code>netbsd/arm</code>,
<code>openbsd/386</code> and <code>openbsd/amd64</code> platforms.
</p>

File diff suppressed because it is too large Load Diff

View File

@@ -1,934 +0,0 @@
<!--{
"Title": "Go 1.11 Release Notes",
"Path": "/doc/go1.11",
"Template": true
}-->
<!--
NOTE: In this document and others in this directory, the convention is to
set fixed-width phrases with non-fixed-width spaces, as in
<code>hello</code> <code>world</code>.
Do not send CLs removing the interior tags from such phrases.
-->
<style>
main ul li { margin: 0.5em 0; }
</style>
<h2 id="introduction">Introduction to Go 1.11</h2>
<p>
The latest Go release, version 1.11, arrives six months after <a href="go1.10">Go 1.10</a>.
Most of its changes are in the implementation of the toolchain, runtime, and libraries.
As always, the release maintains the Go 1 <a href="/doc/go1compat.html">promise of compatibility</a>.
We expect almost all Go programs to continue to compile and run as before.
</p>
<h2 id="language">Changes to the language</h2>
<p>
There are no changes to the language specification.
</p>
<h2 id="ports">Ports</h2>
<p> <!-- CL 94255, CL 115038, etc -->
As <a href="go1.10#ports">announced in the Go 1.10 release notes</a>, Go 1.11 now requires
OpenBSD 6.2 or later, macOS 10.10 Yosemite or later, or Windows 7 or later;
support for previous versions of these operating systems has been removed.
</p>
<p> <!-- CL 121657 -->
Go 1.11 supports the upcoming OpenBSD 6.4 release. Due to changes in
the OpenBSD kernel, older versions of Go will not work on OpenBSD 6.4.
</p>
<p>
There are <a href="https://golang.org/issue/25206">known issues</a> with NetBSD on i386 hardware.
</p>
<p><!-- CL 107935 -->
The race detector is now supported on <code>linux/ppc64le</code>
and, to a lesser extent, on <code>netbsd/amd64</code>. The NetBSD race detector support
has <a href="https://golang.org/issue/26403">known issues</a>.
</p>
<p><!-- CL 109255 -->
The memory sanitizer (<code>-msan</code>) is now supported on <code>linux/arm64</code>.
</p>
<p><!-- CL 93875 -->
The build modes <code>c-shared</code> and <code>c-archive</code> are now supported on
<code>freebsd/amd64</code>.
</p>
<p id="mips"><!-- CL 108475 -->
On 64-bit MIPS systems, the new environment variable settings
<code>GOMIPS64=hardfloat</code> (the default) and
<code>GOMIPS64=softfloat</code> select whether to use
hardware instructions or software emulation for floating-point computations.
For 32-bit systems, the environment variable is still <code>GOMIPS</code>,
as <a href="go1.10#mips">added in Go 1.10</a>.
</p>
<p><!-- CL 107475 -->
On soft-float ARM systems (<code>GOARM=5</code>), Go now uses a more
efficient software floating point interface. This is transparent to
Go code, but ARM assembly that uses floating-point instructions not
guarded on GOARM will break and must be ported to
the <a href="https://golang.org/cl/107475">new interface</a>.
</p>
<p><!-- CL 94076 -->
Go 1.11 on ARMv7 no longer requires a Linux kernel configured
with <code>KUSER_HELPERS</code>. This setting is enabled in default
kernel configurations, but is sometimes disabled in stripped-down
configurations.
</p>
<h3 id="wasm">WebAssembly</h3>
<p>
Go 1.11 adds an experimental port to <a href="https://webassembly.org">WebAssembly</a>
(<code>js/wasm</code>).
</p>
<p>
Go programs currently compile to one WebAssembly module that
includes the Go runtime for goroutine scheduling, garbage
collection, maps, etc.
As a result, the resulting size is at minimum around
2 MB, or 500 KB compressed. Go programs can call into JavaScript
using the new experimental
<a href="/pkg/syscall/js/"><code>syscall/js</code></a> package.
Binary size and interop with other languages has not yet been a
priority but may be addressed in future releases.
</p>
<p>
As a result of the addition of the new <code>GOOS</code> value
"<code>js</code>" and <code>GOARCH</code> value "<code>wasm</code>",
Go files named <code>*_js.go</code> or <code>*_wasm.go</code> will
now be <a href="/pkg/go/build/#hdr-Build_Constraints">ignored by Go
tools</a> except when those GOOS/GOARCH values are being used.
If you have existing filenames matching those patterns, you will need to rename them.
</p>
<p>
More information can be found on the
<a href="https://golang.org/wiki/WebAssembly">WebAssembly wiki page</a>.
</p>
<h3 id="riscv">RISC-V GOARCH values reserved</h3>
<p><!-- CL 106256 -->
The main Go compiler does not yet support the RISC-V architecture <!-- is gonna change everything -->
but we've reserved the <code>GOARCH</code> values
"<code>riscv</code>" and "<code>riscv64</code>", as used by Gccgo,
which does support RISC-V. This means that Go files
named <code>*_riscv.go</code> will now also
be <a href="/pkg/go/build/#hdr-Build_Constraints">ignored by Go
tools</a> except when those GOOS/GOARCH values are being used.
</p>
<h2 id="tools">Tools</h2>
<h3 id="modules">Modules, package versioning, and dependency management</h3>
<p>
Go 1.11 adds preliminary support for a <a href="/cmd/go/#hdr-Modules__module_versions__and_more">new concept called “modules,”</a>
an alternative to GOPATH with integrated support for versioning and
package distribution.
Using modules, developers are no longer confined to working inside GOPATH,
version dependency information is explicit yet lightweight,
and builds are more reliable and reproducible.
</p>
<p>
Module support is considered experimental.
Details are likely to change in response to feedback from Go 1.11 users,
and we have more tools planned.
Although the details of module support may change, projects that convert
to modules using Go 1.11 will continue to work with Go 1.12 and later.
If you encounter bugs using modules,
please <a href="https://golang.org/issue/new">file issues</a>
so we can fix them. For more information, see the
<a href="/cmd/go#hdr-Modules__module_versions__and_more"><code>go</code> command documentation</a>.
</p>
<h3 id="importpath">Import path restriction</h3>
<p>
Because Go module support assigns special meaning to the
<code>@</code> symbol in command line operations,
the <code>go</code> command now disallows the use of
import paths containing <code>@</code> symbols.
Such import paths were never allowed by <code>go</code> <code>get</code>,
so this restriction can only affect users building
custom GOPATH trees by other means.
</p>
<h3 id="gopackages">Package loading</h3>
<p>
The new package
<a href="https://godoc.org/golang.org/x/tools/go/packages"><code>golang.org/x/tools/go/packages</code></a>
provides a simple API for locating and loading packages of Go source code.
Although not yet part of the standard library, for many tasks it
effectively replaces the <a href="/pkg/go/build"><code>go/build</code></a>
package, whose API is unable to fully support modules.
Because it runs an external query command such as
<a href="/cmd/go/#hdr-List_packages"><code>go list</code></a>
to obtain information about Go packages, it enables the construction of
analysis tools that work equally well with alternative build systems
such as <a href="https://bazel.build">Bazel</a>
and <a href="https://buckbuild.com">Buck</a>.
</p>
<h3 id="gocache">Build cache requirement</h3>
<p>
Go 1.11 will be the last release to support setting the environment
variable <code>GOCACHE=off</code> to disable the
<a href="/cmd/go/#hdr-Build_and_test_caching">build cache</a>,
introduced in Go 1.10.
Starting in Go 1.12, the build cache will be required,
as a step toward eliminating <code>$GOPATH/pkg</code>.
The module and package loading support described above
already require that the build cache be enabled.
If you have disabled the build cache to avoid problems you encountered,
please <a href="https://golang.org/issue/new">file an issue</a> to let us know about them.
</p>
<h3 id="compiler">Compiler toolchain</h3>
<p><!-- CL 109918 -->
More functions are now eligible for inlining by default, including
functions that call <code>panic</code>.
</p>
<p><!-- CL 97375 -->
The compiler toolchain now supports column information
in <a href="/cmd/compile/#hdr-Compiler_Directives">line
directives</a>.
</p>
<p><!-- CL 106797 -->
A new package export data format has been introduced.
This should be transparent to end users, except for speeding up
build times for large Go projects.
If it does cause problems, it can be turned off again by
passing <code>-gcflags=all=-iexport=false</code> to
the <code>go</code> tool when building a binary.
</p>
<p><!-- CL 100459 -->
The compiler now rejects unused variables declared in a type switch
guard, such as <code>x</code> in the following example:
</p>
<pre>
func f(v interface{}) {
switch x := v.(type) {
}
}
</pre>
<p>
This was already rejected by both <code>gccgo</code>
and <a href="/pkg/go/types/">go/types</a>.
</p>
<h3 id="assembler">Assembler</h3>
<p><!-- CL 113315 -->
The assembler for <code>amd64</code> now accepts AVX512 instructions.
</p>
<h3 id="debugging">Debugging</h3>
<p><!-- CL 100738, CL 93664 -->
The compiler now produces significantly more accurate debug
information for optimized binaries, including variable location
information, line numbers, and breakpoint locations.
This should make it possible to debug binaries
compiled <em>without</em> <code>-N</code>&nbsp;<code>-l</code>.
There are still limitations to the quality of the debug information,
some of which are fundamental, and some of which will continue to
improve with future releases.
</p>
<p><!-- CL 118276 -->
DWARF sections are now compressed by default because of the expanded
and more accurate debug information produced by the compiler.
This is transparent to most ELF tools (such as debuggers on Linux
and *BSD) and is supported by the Delve debugger on all platforms,
but has limited support in the native tools on macOS and Windows.
To disable DWARF compression,
pass <code>-ldflags=-compressdwarf=false</code> to
the <code>go</code> tool when building a binary.
</p>
<p><!-- CL 109699 -->
Go 1.11 adds experimental support for calling Go functions from
within a debugger.
This is useful, for example, to call <code>String</code> methods
when paused at a breakpoint.
This is currently only supported by Delve (version 1.1.0 and up).
</p>
<h3 id="test">Test</h3>
<p>
Since Go 1.10, the <code>go</code>&nbsp;<code>test</code> command runs
<code>go</code>&nbsp;<code>vet</code> on the package being tested,
to identify problems before running the test. Since <code>vet</code>
typechecks the code with <a href="/pkg/go/types/">go/types</a>
before running, tests that do not typecheck will now fail.
In particular, tests that contain an unused variable inside a
closure compiled with Go 1.10, because the Go compiler incorrectly
accepted them (<a href="https://golang.org/issues/3059">Issue #3059</a>),
but will now fail, since <code>go/types</code> correctly reports an
"unused variable" error in this case.
</p>
<p><!-- CL 102696 -->
The <code>-memprofile</code> flag
to <code>go</code>&nbsp;<code>test</code> now defaults to the
"allocs" profile, which records the total bytes allocated since the
test began (including garbage-collected bytes).
</p>
<h3 id="vet">Vet</h3>
<p><!-- CL 108555 -->
The <a href="/cmd/vet/"><code>go</code>&nbsp;<code>vet</code></a>
command now reports a fatal error when the package under analysis
does not typecheck. Previously, a type checking error simply caused
a warning to be printed, and <code>vet</code> to exit with status 1.
</p>
<p><!-- CL 108559 -->
Additionally, <a href="/cmd/vet"><code>go</code>&nbsp;<code>vet</code></a>
has become more robust when format-checking <code>printf</code> wrappers.
Vet now detects the mistake in this example:
</p>
<pre>
func wrapper(s string, args ...interface{}) {
fmt.Printf(s, args...)
}
func main() {
wrapper("%s", 42)
}
</pre>
<h3 id="trace">Trace</h3>
<p><!-- CL 63274 -->
With the new <code>runtime/trace</code>
package's <a href="/pkg/runtime/trace/#hdr-User_annotation">user
annotation API</a>, users can record application-level information
in execution traces and create groups of related goroutines.
The <code>go</code>&nbsp;<code>tool</code>&nbsp;<code>trace</code>
command visualizes this information in the trace view and the new
user task/region analysis page.
</p>
<h3 id="cgo">Cgo</h3>
<p>
Since Go 1.10, cgo has translated some C pointer types to the Go
type <code>uintptr</code>. These types include
the <code>CFTypeRef</code> hierarchy in Darwin's CoreFoundation
framework and the <code>jobject</code> hierarchy in Java's JNI
interface. In Go 1.11, several improvements have been made to the code
that detects these types. Code that uses these types may need some
updating. See the <a href="go1.10.html#cgo">Go 1.10 release notes</a> for
details. <!-- CL 126275, CL 127156, CL 122217, CL 122575, CL 123177 -->
</p>
<h3 id="go_command">Go command</h3>
<p><!-- CL 126656 -->
The environment variable <code>GOFLAGS</code> may now be used
to set default flags for the <code>go</code> command.
This is useful in certain situations.
Linking can be noticeably slower on underpowered systems due to DWARF,
and users may want to set <code>-ldflags=-w</code> by default.
For modules, some users and CI systems will want vendoring always,
so they should set <code>-mod=vendor</code> by default.
For more information, see the <a href="/cmd/go/#hdr-Environment_variables"><code>go</code>
command documentation</a>.
</p>
<h3 id="godoc">Godoc</h3>
<p>
Go 1.11 will be the last release to support <code>godoc</code>'s command-line interface.
In future releases, <code>godoc</code> will only be a web server. Users should use
<code>go</code> <code>doc</code> for command-line help output instead.
</p>
<p><!-- CL 85396, CL 124495 -->
The <code>godoc</code> web server now shows which version of Go introduced
new API features. The initial Go version of types, funcs, and methods are shown
right-aligned. For example, see <a href="/pkg/os/#UserCacheDir"><code>UserCacheDir</code></a>, with "1.11"
on the right side. For struct fields, inline comments are added when the struct field was
added in a Go version other than when the type itself was introduced.
For a struct field example, see
<a href="/pkg/net/http/httptrace/#ClientTrace.Got1xxResponse"><code>ClientTrace.Got1xxResponse</code></a>.
</p>
<h3 id="gofmt">Gofmt</h3>
<p>
One minor detail of the default formatting of Go source code has changed.
When formatting expression lists with inline comments, the comments were
aligned according to a heuristic.
However, in some cases the alignment would be split up too easily, or
introduce too much whitespace.
The heuristic has been changed to behave better for human-written code.
</p>
<p>
Note that these kinds of minor updates to gofmt are expected from time to
time.
In general, systems that need consistent formatting of Go source code should
use a specific version of the <code>gofmt</code> binary.
See the <a href="/pkg/go/format/">go/format</a> package documentation for more
information.
</p>
<h3 id="run">Run</h3>
<p>
<!-- CL 109341 -->
The <a href="/cmd/go/"><code>go</code>&nbsp;<code>run</code></a>
command now allows a single import path, a directory name or a
pattern matching a single package.
This allows <code>go</code>&nbsp;<code>run</code>&nbsp;<code>pkg</code> or <code>go</code>&nbsp;<code>run</code>&nbsp;<code>dir</code>, most importantly <code>go</code>&nbsp;<code>run</code>&nbsp;<code>.</code>
</p>
<h2 id="runtime">Runtime</h2>
<p><!-- CL 85887 -->
The runtime now uses a sparse heap layout so there is no longer a
limit to the size of the Go heap (previously, the limit was 512GiB).
This also fixes rare "address space conflict" failures in mixed Go/C
binaries or binaries compiled with <code>-race</code>.
</p>
<p><!-- CL 108679, CL 106156 -->
On macOS and iOS, the runtime now uses <code>libSystem.dylib</code> instead of
calling the kernel directly. This should make Go binaries more
compatible with future versions of macOS and iOS.
The <a href="/pkg/syscall">syscall</a> package still makes direct
system calls; fixing this is planned for a future release.
</p>
<h2 id="performance">Performance</h2>
<p>
As always, the changes are so general and varied that precise
statements about performance are difficult to make. Most programs
should run a bit faster, due to better generated code and
optimizations in the core library.
</p>
<p><!-- CL 74851 -->
There were multiple performance changes to the <code>math/big</code>
package as well as many changes across the tree specific to <code>GOARCH=arm64</code>.
</p>
<h3 id="performance-compiler">Compiler toolchain</h3>
<p><!-- CL 110055 -->
The compiler now optimizes map clearing operations of the form:
</p>
<pre>
for k := range m {
delete(m, k)
}
</pre>
<p><!-- CL 109517 -->
The compiler now optimizes slice extension of the form
<code>append(s,</code>&nbsp;<code>make([]T,</code>&nbsp;<code>n)...)</code>.
</p>
<p><!-- CL 100277, CL 105635, CL 109776 -->
The compiler now performs significantly more aggressive bounds-check
and branch elimination. Notably, it now recognizes transitive
relations, so if <code>i&lt;j</code> and <code>j&lt;len(s)</code>,
it can use these facts to eliminate the bounds check
for <code>s[i]</code>. It also understands simple arithmetic such
as <code>s[i-10]</code> and can recognize more inductive cases in
loops. Furthermore, the compiler now uses bounds information to more
aggressively optimize shift operations.
</p>
<h2 id="library">Core library</h2>
<p>
All of the changes to the standard library are minor.
</p>
<h3 id="minor_library_changes">Minor changes to the library</h3>
<p>
As always, there are various minor changes and updates to the library,
made with the Go 1 <a href="/doc/go1compat">promise of compatibility</a>
in mind.
</p>
<!-- CL 115095: https://golang.org/cl/115095: yes (`go test pkg` now always builds pkg even if there are no test files): cmd/go: output coverage report even if there are no test files -->
<!-- CL 110395: https://golang.org/cl/110395: cmd/go, cmd/compile: use Windows response files to avoid arg length limits -->
<!-- CL 112436: https://golang.org/cl/112436: cmd/pprof: add readline support similar to upstream -->
<dl id="crypto"><dt><a href="/pkg/crypto/">crypto</a></dt>
<dd>
<p><!-- CL 64451 -->
Certain crypto operations, including
<a href="/pkg/crypto/ecdsa/#Sign"><code>ecdsa.Sign</code></a>,
<a href="/pkg/crypto/rsa/#EncryptPKCS1v15"><code>rsa.EncryptPKCS1v15</code></a> and
<a href="/pkg/crypto/rsa/#GenerateKey"><code>rsa.GenerateKey</code></a>,
now randomly read an extra byte of randomness to ensure tests don't rely on internal behavior.
</p>
</dl><!-- crypto -->
<dl id="crypto/cipher"><dt><a href="/pkg/crypto/cipher/">crypto/cipher</a></dt>
<dd>
<p><!-- CL 48510, CL 116435 -->
The new function <a href="/pkg/crypto/cipher/#NewGCMWithTagSize"><code>NewGCMWithTagSize</code></a>
implements Galois Counter Mode with non-standard tag lengths for compatibility with existing cryptosystems.
</p>
</dl><!-- crypto/cipher -->
<dl id="crypto/rsa"><dt><a href="/pkg/crypto/rsa/">crypto/rsa</a></dt>
<dd>
<p><!-- CL 103876 -->
<a href="/pkg/crypto/rsa/#PublicKey"><code>PublicKey</code></a> now implements a
<a href="/pkg/crypto/rsa/#PublicKey.Size"><code>Size</code></a> method that
returns the modulus size in bytes.
</p>
</dl><!-- crypto/rsa -->
<dl id="crypto/tls"><dt><a href="/pkg/crypto/tls/">crypto/tls</a></dt>
<dd>
<p><!-- CL 85115 -->
<a href="/pkg/crypto/tls/#ConnectionState"><code>ConnectionState</code></a>'s new
<a href="/pkg/crypto/tls/#ConnectionState.ExportKeyingMaterial"><code>ExportKeyingMaterial</code></a>
method allows exporting keying material bound to the
connection according to RFC 5705.
</p>
</dl><!-- crypto/tls -->
<dl id="crypto/x509"><dt><a href="/pkg/crypto/x509/">crypto/x509</a></dt>
<dd>
<p><!-- CL 123355, CL 123695 -->
The deprecated, legacy behavior of treating the <code>CommonName</code> field as
a hostname when no Subject Alternative Names are present is now disabled when the CN is not a
valid hostname.
The <code>CommonName</code> can be completely ignored by adding the experimental value
<code>x509ignoreCN=1</code> to the <code>GODEBUG</code> environment variable.
When the CN is ignored, certificates without SANs validate under chains with name constraints
instead of returning <code>NameConstraintsWithoutSANs</code>.
</p>
<p><!-- CL 113475 -->
Extended key usage restrictions are again checked only if they appear in the <code>KeyUsages</code>
field of <a href="/pkg/crypto/x509/#VerifyOptions"><code>VerifyOptions</code></a>, instead of always being checked.
This matches the behavior of Go 1.9 and earlier.
</p>
<p><!-- CL 102699 -->
The value returned by <a href="/pkg/crypto/x509/#SystemCertPool"><code>SystemCertPool</code></a>
is now cached and might not reflect system changes between invocations.
</p>
</dl><!-- crypto/x509 -->
<dl id="debug/elf"><dt><a href="/pkg/debug/elf/">debug/elf</a></dt>
<dd>
<p><!-- CL 112115 -->
More <a href="/pkg/debug/elf/#ELFOSABI_NONE"><code>ELFOSABI</code></a>
and <a href="/pkg/debug/elf/#EM_NONE"><code>EM</code></a>
constants have been added.
</p>
</dl><!-- debug/elf -->
<dl id="encoding/asn1"><dt><a href="/pkg/encoding/asn1/">encoding/asn1</a></dt>
<dd>
<p><!-- CL 110561 -->
<code>Marshal</code> and <code><a href="/pkg/encoding/asn1/#Unmarshal">Unmarshal</a></code>
now support "private" class annotations for fields.
</p>
</dl><!-- encoding/asn1 -->
<dl id="encoding/base32"><dt><a href="/pkg/encoding/base32/">encoding/base32</a></dt>
<dd>
<p><!-- CL 112516 -->
The decoder now consistently
returns <code>io.ErrUnexpectedEOF</code> for an incomplete
chunk. Previously it would return <code>io.EOF</code> in some
cases.
</p>
</dl><!-- encoding/base32 -->
<dl id="encoding/csv"><dt><a href="/pkg/encoding/csv/">encoding/csv</a></dt>
<dd>
<p><!-- CL 99696 -->
The <code>Reader</code> now rejects attempts to set
the <a href="/pkg/encoding/csv/#Reader.Comma"><code>Comma</code></a>
field to a double-quote character, as double-quote characters
already have a special meaning in CSV.
</p>
</dl><!-- encoding/csv -->
<!-- CL 100235 was reverted -->
<dl id="html/template"><dt><a href="/pkg/html/template/">html/template</a></dt>
<dd>
<p><!-- CL 121815 -->
The package has changed its behavior when a typed interface
value is passed to an implicit escaper function. Previously such
a value was written out as (an escaped form)
of <code>&lt;nil&gt;</code>. Now such values are ignored, just
as an untyped <code>nil</code> value is (and always has been)
ignored.
</p>
</dl><!-- html/template -->
<dl id="image/gif"><dt><a href="/pkg/image/gif/">image/gif</a></dt>
<dd>
<p><!-- CL 93076 -->
Non-looping animated GIFs are now supported. They are denoted by having a
<code><a href="/pkg/image/gif/#GIF.LoopCount">LoopCount</a></code> of -1.
</p>
</dl><!-- image/gif -->
<dl id="io/ioutil"><dt><a href="/pkg/io/ioutil/">io/ioutil</a></dt>
<dd>
<p><!-- CL 105675 -->
The <code><a href="/pkg/io/ioutil/#TempFile">TempFile</a></code>
function now supports specifying where the random characters in
the filename are placed. If the <code>prefix</code> argument
includes a "<code>*</code>", the random string replaces the
"<code>*</code>". For example, a <code>prefix</code> argument of "<code>myname.*.bat</code>" will
result in a random filename such as
"<code>myname.123456.bat</code>". If no "<code>*</code>" is
included the old behavior is retained, and the random digits are
appended to the end.
</p>
</dl><!-- io/ioutil -->
<dl id="math/big"><dt><a href="/pkg/math/big/">math/big</a></dt>
<dd>
<p><!-- CL 108996 -->
<a href="/pkg/math/big/#Int.ModInverse"><code>ModInverse</code></a> now returns nil when g and n are not relatively prime. The result was previously undefined.
</p>
</dl><!-- math/big -->
<dl id="mime/multipart"><dt><a href="/pkg/mime/multipart/">mime/multipart</a></dt>
<dd>
<p><!-- CL 121055 -->
The handling of form-data with missing/empty file names has been
restored to the behavior in Go 1.9: in the
<a href="/pkg/mime/multipart/#Form"><code>Form</code></a> for
the form-data part the value is available in
the <code>Value</code> field rather than the <code>File</code>
field. In Go releases 1.10 through 1.10.3 a form-data part with
a missing/empty file name and a non-empty "Content-Type" field
was stored in the <code>File</code> field. This change was a
mistake in 1.10 and has been reverted to the 1.9 behavior.
</p>
</dl><!-- mime/multipart -->
<dl id="mime/quotedprintable"><dt><a href="/pkg/mime/quotedprintable/">mime/quotedprintable</a></dt>
<dd>
<p><!-- CL 121095 -->
To support invalid input found in the wild, the package now
permits non-ASCII bytes but does not validate their encoding.
</p>
</dl><!-- mime/quotedprintable -->
<dl id="net"><dt><a href="/pkg/net/">net</a></dt>
<dd>
<p><!-- CL 72810 -->
The new <a href="/pkg/net/#ListenConfig"><code>ListenConfig</code></a> type and the new
<a href="/pkg/net/#Dialer.Control"><code>Dialer.Control</code></a> field permit
setting socket options before accepting and creating connections, respectively.
</p>
<p><!-- CL 76391 -->
The <a href="/pkg/syscall/#RawConn"><code>syscall.RawConn</code></a> <code>Read</code>
and <code>Write</code> methods now work correctly on Windows.
</p>
<p><!-- CL 107715 -->
The <code>net</code> package now automatically uses the
<a href="http://man7.org/linux/man-pages/man2/splice.2.html"><code>splice</code> system call</a>
on Linux when copying data between TCP connections in
<a href="/pkg/net/#TCPConn.ReadFrom"><code>TCPConn.ReadFrom</code></a>, as called by
<a href="/pkg/io/#Copy"><code>io.Copy</code></a>. The result is faster, more efficient TCP proxying.
</p>
<p><!-- CL 108297 -->
The <a href="/pkg/net/#TCPConn.File"><code>TCPConn.File</code></a>,
<a href="/pkg/net/#UDPConn.File"><code>UDPConn.File</code></a>,
<a href="/pkg/net/#UnixCOnn.File"><code>UnixConn.File</code></a>,
and <a href="/pkg/net/#IPConn.File"><code>IPConn.File</code></a>
methods no longer put the returned <code>*os.File</code> into
blocking mode.
</p>
</dl><!-- net -->
<dl id="net/http"><dt><a href="/pkg/net/http/">net/http</a></dt>
<dd>
<p><!-- CL 71272 -->
The <a href="/pkg/net/http/#Transport"><code>Transport</code></a> type has a
new <a href="/pkg/net/http/#Transport.MaxConnsPerHost"><code>MaxConnsPerHost</code></a>
option that permits limiting the maximum number of connections
per host.
</p>
<p><!-- CL 79919 -->
The <a href="/pkg/net/http/#Cookie"><code>Cookie</code></a> type has a new
<a href="/pkg/net/http/#Cookie.SameSite"><code>SameSite</code></a> field
(of new type also named
<a href="/pkg/net/http/#SameSite"><code>SameSite</code></a>) to represent the new cookie attribute recently supported by most browsers.
The <code>net/http</code>'s <code>Transport</code> does not use the <code>SameSite</code>
attribute itself, but the package supports parsing and serializing the
attribute for browsers to use.
</p>
<p><!-- CL 81778 -->
It is no longer allowed to reuse a <a href="/pkg/net/http/#Server"><code>Server</code></a>
after a call to
<a href="/pkg/net/http/#Server.Shutdown"><code>Shutdown</code></a> or
<a href="/pkg/net/http/#Server.Close"><code>Close</code></a>. It was never officially supported
in the past and had often surprising behavior. Now, all future calls to the server's <code>Serve</code>
methods will return errors after a shutdown or close.
</p>
<!-- CL 89275 was reverted before Go 1.11 -->
<p><!-- CL 93296 -->
The constant <code>StatusMisdirectedRequest</code> is now defined for HTTP status code 421.
</p>
<p><!-- CL 123875 -->
The HTTP server will no longer cancel contexts or send on
<a href="/pkg/net/http/#CloseNotifier"><code>CloseNotifier</code></a>
channels upon receiving pipelined HTTP/1.1 requests. Browsers do
not use HTTP pipelining, but some clients (such as
Debian's <code>apt</code>) may be configured to do so.
</p>
<p><!-- CL 115255 -->
<a href="/pkg/net/http/#ProxyFromEnvironment"><code>ProxyFromEnvironment</code></a>, which is used by the
<a href="/pkg/net/http/#DefaultTransport"><code>DefaultTransport</code></a>, now
supports CIDR notation and ports in the <code>NO_PROXY</code> environment variable.
</p>
</dl><!-- net/http -->
<dl id="net/http/httputil"><dt><a href="/pkg/net/http/httputil/">net/http/httputil</a></dt>
<dd>
<p><!-- CL 77410 -->
The
<a href="/pkg/net/http/httputil/#ReverseProxy"><code>ReverseProxy</code></a>
has a new
<a href="/pkg/net/http/httputil/#ReverseProxy.ErrorHandler"><code>ErrorHandler</code></a>
option to permit changing how errors are handled.
</p>
<p><!-- CL 115135 -->
The <code>ReverseProxy</code> now also passes
"<code>TE:</code>&nbsp;<code>trailers</code>" request headers
through to the backend, as required by the gRPC protocol.
</p>
</dl><!-- net/http/httputil -->
<dl id="os"><dt><a href="/pkg/os/">os</a></dt>
<dd>
<p><!-- CL 78835 -->
The new <a href="/pkg/os/#UserCacheDir"><code>UserCacheDir</code></a> function
returns the default root directory to use for user-specific cached data.
</p>
<p><!-- CL 94856 -->
The new <a href="/pkg/os/#ModeIrregular"><code>ModeIrregular</code></a>
is a <a href="/pkg/os/#FileMode"><code>FileMode</code></a> bit to represent
that a file is not a regular file, but nothing else is known about it, or that
it's not a socket, device, named pipe, symlink, or other file type for which
Go has a defined mode bit.
</p>
<p><!-- CL 99337 -->
<a href="/pkg/os/#Symlink"><code>Symlink</code></a> now works
for unprivileged users on Windows 10 on machines with Developer
Mode enabled.
</p>
<p><!-- CL 100077 -->
When a non-blocking descriptor is passed
to <a href="/pkg/os#NewFile"><code>NewFile</code></a>, the
resulting <code>*File</code> will be kept in non-blocking
mode. This means that I/O for that <code>*File</code> will use
the runtime poller rather than a separate thread, and that
the <a href="/pkg/os/#File.SetDeadline"><code>SetDeadline</code></a>
methods will work.
</p>
</dl><!-- os -->
<dl id="os/signal"><dt><a href="/pkg/os/signal/">os/signal</a></dt>
<dd>
<p><!-- CL 108376 -->
The new <a href="/pkg/os/signal/#Ignored"><code>Ignored</code></a> function reports
whether a signal is currently ignored.
</p>
</dl><!-- os/signal -->
<dl id="os/user"><dt><a href="/pkg/os/user/">os/user</a></dt>
<dd>
<p><!-- CL 92456 -->
The <code>os/user</code> package can now be built in pure Go
mode using the build tag "<code>osusergo</code>",
independent of the use of the environment
variable <code>CGO_ENABLED=0</code>. Previously the only way to use
the package's pure Go implementation was to disable <code>cgo</code>
support across the entire program.
</p>
</dl><!-- os/user -->
<!-- CL 101715 was reverted -->
<dl id="pkg-runtime"><dt id="runtime-again"><a href="/pkg/runtime/">runtime</a></dt>
<dd>
<p><!-- CL 70993 -->
Setting the <code>GODEBUG=tracebackancestors=<em>N</em></code>
environment variable now extends tracebacks with the stacks at
which goroutines were created, where <em>N</em> limits the
number of ancestor goroutines to report.
</p>
</dl><!-- runtime -->
<dl id="runtime/pprof"><dt><a href="/pkg/runtime/pprof/">runtime/pprof</a></dt>
<dd>
<p><!-- CL 102696 -->
This release adds a new "allocs" profile type that profiles
total number of bytes allocated since the program began
(including garbage-collected bytes). This is identical to the
existing "heap" profile viewed in <code>-alloc_space</code> mode.
Now <code>go test -memprofile=...</code> reports an "allocs" profile
instead of "heap" profile.
</p>
</dl><!-- runtime/pprof -->
<dl id="sync"><dt><a href="/pkg/sync/">sync</a></dt>
<dd>
<p><!-- CL 87095 -->
The mutex profile now includes reader/writer contention
for <a href="/pkg/sync/#RWMutex"><code>RWMutex</code></a>.
Writer/writer contention was already included in the mutex
profile.
</p>
</dl><!-- sync -->
<dl id="syscall"><dt><a href="/pkg/syscall/">syscall</a></dt>
<dd>
<p><!-- CL 106275 -->
On Windows, several fields were changed from <code>uintptr</code> to a new
<a href="/pkg/syscall/?GOOS=windows&GOARCH=amd64#Pointer"><code>Pointer</code></a>
type to avoid problems with Go's garbage collector. The same change was made
to the <a href="https://godoc.org/golang.org/x/sys/windows"><code>golang.org/x/sys/windows</code></a>
package. For any code affected, users should first migrate away from the <code>syscall</code>
package to the <code>golang.org/x/sys/windows</code> package, and then change
to using the <code>Pointer</code>, while obeying the
<a href="/pkg/unsafe/#Pointer"><code>unsafe.Pointer</code> conversion rules</a>.
</p>
<p><!-- CL 118658 -->
On Linux, the <code>flags</code> parameter to
<a href="/pkg/syscall/?GOOS=linux&GOARCH=amd64#Faccessat"><code>Faccessat</code></a>
is now implemented just as in glibc. In earlier Go releases the
flags parameter was ignored.
</p>
<p><!-- CL 118658 -->
On Linux, the <code>flags</code> parameter to
<a href="/pkg/syscall/?GOOS=linux&GOARCH=amd64#Fchmodat"><code>Fchmodat</code></a>
is now validated. Linux's <code>fchmodat</code> doesn't support the <code>flags</code> parameter
so we now mimic glibc's behavior and return an error if it's non-zero.
</p>
</dl><!-- syscall -->
<dl id="text/scanner"><dt><a href="/pkg/text/scanner/">text/scanner</a></dt>
<dd>
<p><!-- CL 112037 -->
The <a href="/pkg/text/scanner/#Scanner.Scan"><code>Scanner.Scan</code></a> method now returns
the <a href="/pkg/text/scanner/#RawString"><code>RawString</code></a> token
instead of <a href="/pkg/text/scanner/#String"><code>String</code></a>
for raw string literals.
</p>
</dl><!-- text/scanner -->
<dl id="text/template"><dt><a href="/pkg/text/template/">text/template</a></dt>
<dd>
<p><!-- CL 84480 -->
Modifying template variables via assignments is now permitted via the <code>=</code> token:
</p>
<pre>
{{"{{"}} $v := "init" {{"}}"}}
{{"{{"}} if true {{"}}"}}
{{"{{"}} $v = "changed" {{"}}"}}
{{"{{"}} end {{"}}"}}
v: {{"{{"}} $v {{"}}"}} {{"{{"}}/* "changed" */{{"}}"}}</pre>
<p><!-- CL 95215 -->
In previous versions untyped <code>nil</code> values passed to
template functions were ignored. They are now passed as normal
arguments.
</p>
</dl><!-- text/template -->
<dl id="time"><dt><a href="/pkg/time/">time</a></dt>
<dd>
<p><!-- CL 98157 -->
Parsing of timezones denoted by sign and offset is now
supported. In previous versions, numeric timezone names
(such as <code>+03</code>) were not considered valid, and only
three-letter abbreviations (such as <code>MST</code>) were accepted
when expecting a timezone name.
</p>
</dl><!-- time -->

View File

@@ -1,949 +0,0 @@
<!--{
"Title": "Go 1.12 Release Notes",
"Path": "/doc/go1.12",
"Template": true
}-->
<!--
NOTE: In this document and others in this directory, the convention is to
set fixed-width phrases with non-fixed-width spaces, as in
<code>hello</code> <code>world</code>.
Do not send CLs removing the interior tags from such phrases.
-->
<style>
main ul li { margin: 0.5em 0; }
</style>
<h2 id="introduction">Introduction to Go 1.12</h2>
<p>
The latest Go release, version 1.12, arrives six months after <a href="go1.11">Go 1.11</a>.
Most of its changes are in the implementation of the toolchain, runtime, and libraries.
As always, the release maintains the Go 1 <a href="/doc/go1compat">promise of compatibility</a>.
We expect almost all Go programs to continue to compile and run as before.
</p>
<h2 id="language">Changes to the language</h2>
<p>
There are no changes to the language specification.
</p>
<h2 id="ports">Ports</h2>
<p><!-- CL 138675 -->
The race detector is now supported on <code>linux/arm64</code>.
</p>
<p id="freebsd">
Go 1.12 is the last release that is supported on FreeBSD 10.x, which has
already reached end-of-life. Go 1.13 will require FreeBSD 11.2+ or FreeBSD
12.0+.
FreeBSD 12.0+ requires a kernel with the COMPAT_FREEBSD11 option set (this is the default).
</p>
<p><!-- CL 146898 -->
cgo is now supported on <code>linux/ppc64</code>.
</p>
<p id="hurd"><!-- CL 146023 -->
<code>hurd</code> is now a recognized value for <code>GOOS</code>, reserved
for the GNU/Hurd system for use with <code>gccgo</code>.
</p>
<h3 id="windows">Windows</h3>
<p>
Go's new <code>windows/arm</code> port supports running Go on Windows 10
IoT Core on 32-bit ARM chips such as the Raspberry Pi 3.
</p>
<h3 id="aix">AIX</h3>
<p>
Go now supports AIX 7.2 and later on POWER8 architectures (<code>aix/ppc64</code>). External linking, cgo, pprof and the race detector aren't yet supported.
</p>
<h3 id="darwin">Darwin</h3>
<p>
Go 1.12 is the last release that will run on macOS 10.10 Yosemite.
Go 1.13 will require macOS 10.11 El Capitan or later.
</p>
<p><!-- CL 141639 -->
<code>libSystem</code> is now used when making syscalls on Darwin,
ensuring forward-compatibility with future versions of macOS and iOS.
<!-- CL 153338 -->
The switch to <code>libSystem</code> triggered additional App Store
checks for private API usage. Since it is considered private,
<code>syscall.Getdirentries</code> now always fails with
<code>ENOSYS</code> on iOS.
Additionally, <a href="/pkg/syscall/#Setrlimit"><code>syscall.Setrlimit</code></a>
reports <code>invalid</code> <code>argument</code> in places where it historically
succeeded. These consequences are not specific to Go and users should expect
behavioral parity with <code>libSystem</code>'s implementation going forward.
</p>
<h2 id="tools">Tools</h2>
<h3 id="vet"><code>go tool vet</code> no longer supported</h3>
<p>
The <code>go vet</code> command has been rewritten to serve as the
base for a range of different source code analysis tools. See
the <a href="https://godoc.org/golang.org/x/tools/go/analysis">golang.org/x/tools/go/analysis</a>
package for details. A side-effect is that <code>go tool vet</code>
is no longer supported. External tools that use <code>go tool
vet</code> must be changed to use <code>go
vet</code>. Using <code>go vet</code> instead of <code>go tool
vet</code> should work with all supported versions of Go.
</p>
<p>
As part of this change, the experimental <code>-shadow</code> option
is no longer available with <code>go vet</code>. Checking for
variable shadowing may now be done using
<pre>
go get -u golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow
go vet -vettool=$(which shadow)
</pre>
</p>
<h3 id="tour">Tour</h3>
<p> <!-- CL 152657 -->
The Go tour is no longer included in the main binary distribution. To
run the tour locally, instead of running <code>go</code> <code>tool</code> <code>tour</code>,
manually install it:
<pre>
go get -u golang.org/x/tour
tour
</pre>
</p>
<h3 id="gocache">Build cache requirement</h3>
<p>
The <a href="/cmd/go/#hdr-Build_and_test_caching">build cache</a> is now
required as a step toward eliminating
<code>$GOPATH/pkg</code>. Setting the environment variable
<code>GOCACHE=off</code> will cause <code>go</code> commands that write to the
cache to fail.
</p>
<h3 id="binary-only">Binary-only packages</h3>
<p>
Go 1.12 is the last release that will support binary-only packages.
</p>
<h3 id="cgo">Cgo</h3>
<p>
Go 1.12 will translate the C type <code>EGLDisplay</code> to the Go type <code>uintptr</code>.
This change is similar to how Go 1.10 and newer treats Darwin's CoreFoundation
and Java's JNI types. See the
<a href="/cmd/cgo/#hdr-Special_cases">cgo documentation</a>
for more information.
</p>
<p><!-- CL 152657 -->
Mangled C names are no longer accepted in packages that use Cgo. Use the Cgo
names instead. For example, use the documented cgo name <code>C.char</code>
rather than the mangled name <code>_Ctype_char</code> that cgo generates.
</p>
<h3 id="modules">Modules</h3>
<p><!-- CL 148517 -->
When <code>GO111MODULE</code> is set to <code>on</code>, the <code>go</code>
command now supports module-aware operations outside of a module directory,
provided that those operations do not need to resolve import paths relative to
the current directory or explicitly edit the <code>go.mod</code> file.
Commands such as <code>go</code> <code>get</code>,
<code>go</code> <code>list</code>, and
<code>go</code> <code>mod</code> <code>download</code> behave as if in a
module with initially-empty requirements.
In this mode, <code>go</code> <code>env</code> <code>GOMOD</code> reports
the system's null device (<code>/dev/null</code> or <code>NUL</code>).
</p>
<p><!-- CL 146382 -->
<code>go</code> commands that download and extract modules are now safe to
invoke concurrently.
The module cache (<code>GOPATH/pkg/mod</code>) must reside in a filesystem that
supports file locking.
</p>
<p><!-- CL 147282, 147281 -->
The <code>go</code> directive in a <code>go.mod</code> file now indicates the
version of the language used by the files within that module.
It will be set to the current release
(<code>go</code> <code>1.12</code>) if no existing version is
present.
If the <code>go</code> directive for a module specifies a
version <em>newer</em> than the toolchain in use, the <code>go</code> command
will attempt to build the packages regardless, and will note the mismatch only if
that build fails.
</p>
<p><!-- CL 147282, 147281 -->
This changed use of the <code>go</code> directive means that if you
use Go 1.12 to build a module, thus recording <code>go 1.12</code>
in the <code>go.mod</code> file, you will get an error when
attempting to build the same module with Go 1.11 through Go 1.11.3.
Go 1.11.4 or later will work fine, as will releases older than Go 1.11.
If you must use Go 1.11 through 1.11.3, you can avoid the problem by
setting the language version to 1.11, using the Go 1.12 go tool,
via <code>go mod edit -go=1.11</code>.
</p>
<p><!-- CL 152739 -->
When an import cannot be resolved using the active modules,
the <code>go</code> command will now try to use the modules mentioned in the
main module's <code>replace</code> directives before consulting the module
cache and the usual network sources.
If a matching replacement is found but the <code>replace</code> directive does
not specify a version, the <code>go</code> command uses a pseudo-version
derived from the zero <code>time.Time</code> (such
as <code>v0.0.0-00010101000000-000000000000</code>).
</p>
<h3 id="compiler">Compiler toolchain</h3>
<p><!-- CL 134155, 134156 -->
The compiler's live variable analysis has improved. This may mean that
finalizers will be executed sooner in this release than in previous
releases. If that is a problem, consider the appropriate addition of a
<a href="/pkg/runtime/#KeepAlive"><code>runtime.KeepAlive</code></a> call.
</p>
<p><!-- CL 147361 -->
More functions are now eligible for inlining by default, including
functions that do nothing but call another function.
This extra inlining makes it additionally important to use
<a href="/pkg/runtime/#CallersFrames"><code>runtime.CallersFrames</code></a>
instead of iterating over the result of
<a href="/pkg/runtime/#Callers"><code>runtime.Callers</code></a> directly.
<pre>
// Old code which no longer works correctly (it will miss inlined call frames).
var pcs [10]uintptr
n := runtime.Callers(1, pcs[:])
for _, pc := range pcs[:n] {
f := runtime.FuncForPC(pc)
if f != nil {
fmt.Println(f.Name())
}
}
</pre>
<pre>
// New code which will work correctly.
var pcs [10]uintptr
n := runtime.Callers(1, pcs[:])
frames := runtime.CallersFrames(pcs[:n])
for {
frame, more := frames.Next()
fmt.Println(frame.Function)
if !more {
break
}
}
</pre>
</p>
<p><!-- CL 153477 -->
Wrappers generated by the compiler to implement method expressions
are no longer reported
by <a href="/pkg/runtime/#CallersFrames"><code>runtime.CallersFrames</code></a>
and <a href="/pkg/runtime/#Stack"><code>runtime.Stack</code></a>. They
are also not printed in panic stack traces.
This change aligns the <code>gc</code> toolchain to match
the <code>gccgo</code> toolchain, which already elided such wrappers
from stack traces.
Clients of these APIs might need to adjust for the missing
frames. For code that must interoperate between 1.11 and 1.12
releases, you can replace the method expression <code>x.M</code>
with the function literal <code>func (...) { x.M(...) } </code>.
</p>
<p><!-- CL 144340 -->
The compiler now accepts a <code>-lang</code> flag to set the Go language
version to use. For example, <code>-lang=go1.8</code> causes the compiler to
emit an error if the program uses type aliases, which were added in Go 1.9.
Language changes made before Go 1.12 are not consistently enforced.
</p>
<p><!-- CL 147160 -->
The compiler toolchain now uses different conventions to call Go
functions and assembly functions. This should be invisible to users,
except for calls that simultaneously cross between Go and
assembly <em>and</em> cross a package boundary. If linking results
in an error like "relocation target not defined for ABIInternal (but
is defined for ABI0)", please refer to the
<a href="https://github.com/golang/proposal/blob/master/design/27539-internal-abi.md#compatibility">compatibility section</a>
of the ABI design document.
</p>
<p><!-- CL 145179 -->
There have been many improvements to the DWARF debug information
produced by the compiler, including improvements to argument
printing and variable location information.
</p>
<p><!-- CL 61511 -->
Go programs now also maintain stack frame pointers on <code>linux/arm64</code>
for the benefit of profiling tools like <code>perf</code>. The frame pointer
maintenance has a small run-time overhead that varies but averages around 3%.
To build a toolchain that does not use frame pointers, set
<code>GOEXPERIMENT=noframepointer</code> when running <code>make.bash</code>.
</p>
<p><!-- CL 142717 -->
The obsolete "safe" compiler mode (enabled by the <code>-u</code> gcflag) has been removed.
</p>
<h3 id="godoc"><code>godoc</code> and <code>go</code> <code>doc</code></h3>
<p>
In Go 1.12, <code>godoc</code> no longer has a command-line interface and
is only a web server. Users should use <code>go</code> <code>doc</code>
for command-line help output instead. Go 1.12 is the last release that will
include the <code>godoc</code> webserver; in Go 1.13 it will be available
via <code>go</code> <code>get</code>.
</p>
<p><!-- CL 141977 -->
<code>go</code> <code>doc</code> now supports the <code>-all</code> flag,
which will cause it to print all exported APIs and their documentation,
as the <code>godoc</code> command line used to do.
</p>
<p><!-- CL 140959 -->
<code>go</code> <code>doc</code> also now includes the <code>-src</code> flag,
which will show the target's source code.
</p>
<h3 id="trace">Trace</h3>
<p><!-- CL 60790 -->
The trace tool now supports plotting mutator utilization curves,
including cross-references to the execution trace. These are useful
for analyzing the impact of the garbage collector on application
latency and throughput.
</p>
<h3 id="assembler">Assembler</h3>
<p><!-- CL 147218 -->
On <code>arm64</code>, the platform register was renamed from
<code>R18</code> to <code>R18_PLATFORM</code> to prevent accidental
use, as the OS could choose to reserve this register.
</p>
<h2 id="runtime">Runtime</h2>
<p><!-- CL 138959 -->
Go 1.12 significantly improves the performance of sweeping when a
large fraction of the heap remains live. This reduces allocation
latency immediately following a garbage collection.
</p>
<p><!-- CL 139719 -->
The Go runtime now releases memory back to the operating system more
aggressively, particularly in response to large allocations that
can't reuse existing heap space.
</p>
<p><!-- CL 146342, CL 146340, CL 146345, CL 146339, CL 146343, CL 146337, CL 146341, CL 146338 -->
The Go runtime's timer and deadline code is faster and scales better
with higher numbers of CPUs. In particular, this improves the
performance of manipulating network connection deadlines.
</p>
<p><!-- CL 135395 -->
On Linux, the runtime now uses <code>MADV_FREE</code> to release unused
memory. This is more efficient but may result in higher reported
RSS. The kernel will reclaim the unused data when it is needed.
To revert to the Go 1.11 behavior (<code>MADV_DONTNEED</code>), set the
environment variable <code>GODEBUG=madvdontneed=1</code>.
</p>
<p><!-- CL 149578 -->
Adding cpu.<em>extension</em>=off to the
<a href="/doc/diagnostics.html#godebug">GODEBUG</a> environment
variable now disables the use of optional CPU instruction
set extensions in the standard library and runtime. This is not
yet supported on Windows.
</p>
<p><!-- CL 158337 -->
Go 1.12 improves the accuracy of memory profiles by fixing
overcounting of large heap allocations.
</p>
<p><!-- CL 159717 -->
Tracebacks, <code>runtime.Caller</code>,
and <code>runtime.Callers</code> no longer include
compiler-generated initialization functions. Doing a traceback
during the initialization of a global variable will now show a
function named <code>PKG.init.ializers</code>.
</p>
<h2 id="library">Core library</h2>
<h3 id="tls_1_3">TLS 1.3</h3>
<p>
Go 1.12 adds opt-in support for TLS 1.3 in the <code>crypto/tls</code> package as
specified by <a href="https://www.rfc-editor.org/info/rfc8446">RFC 8446</a>. It can
be enabled by adding the value <code>tls13=1</code> to the <code>GODEBUG</code>
environment variable. It will be enabled by default in Go 1.13.
</p>
<p>
To negotiate TLS 1.3, make sure you do not set an explicit <code>MaxVersion</code> in
<a href="/pkg/crypto/tls/#Config"><code>Config</code></a> and run your program with
the environment variable <code>GODEBUG=tls13=1</code> set.
</p>
<p>
All TLS 1.2 features except <code>TLSUnique</code> in
<a href="/pkg/crypto/tls/#ConnectionState"><code>ConnectionState</code></a>
and renegotiation are available in TLS 1.3 and provide equivalent or
better security and performance. Note that even though TLS 1.3 is backwards
compatible with previous versions, certain legacy systems might not work
correctly when attempting to negotiate it. RSA certificate keys too small
to be secure (including 512-bit keys) will not work with TLS 1.3.
</p>
<p>
TLS 1.3 cipher suites are not configurable. All supported cipher suites are
safe, and if <code>PreferServerCipherSuites</code> is set in
<a href="/pkg/crypto/tls/#Config"><code>Config</code></a> the preference order
is based on the available hardware.
</p>
<p>
Early data (also called "0-RTT mode") is not currently supported as a
client or server. Additionally, a Go 1.12 server does not support skipping
unexpected early data if a client sends it. Since TLS 1.3 0-RTT mode
involves clients keeping state regarding which servers support 0-RTT,
a Go 1.12 server cannot be part of a load-balancing pool where some other
servers do support 0-RTT. If switching a domain from a server that supported
0-RTT to a Go 1.12 server, 0-RTT would have to be disabled for at least the
lifetime of the issued session tickets before the switch to ensure
uninterrupted operation.
</p>
<p>
In TLS 1.3 the client is the last one to speak in the handshake, so if it causes
an error to occur on the server, it will be returned on the client by the first
<a href="/pkg/crypto/tls/#Conn.Read"><code>Read</code></a>, not by
<a href="/pkg/crypto/tls/#Conn.Handshake"><code>Handshake</code></a>. For
example, that will be the case if the server rejects the client certificate.
Similarly, session tickets are now post-handshake messages, so are only
received by the client upon its first
<a href="/pkg/crypto/tls/#Conn.Read"><code>Read</code></a>.
</p>
<h3 id="minor_library_changes">Minor changes to the library</h3>
<p>
As always, there are various minor changes and updates to the library,
made with the Go 1 <a href="/doc/go1compat">promise of compatibility</a>
in mind.
</p>
<!-- TODO: CL 115677: https://golang.org/cl/115677: cmd/vet: check embedded field tags too -->
<dl id="bufio"><dt><a href="/pkg/bufio/">bufio</a></dt>
<dd>
<p><!-- CL 149297 -->
<code>Reader</code>'s <a href="/pkg/bufio/#Reader.UnreadRune"><code>UnreadRune</code></a> and
<a href="/pkg/bufio/#Reader.UnreadByte"><code>UnreadByte</code></a> methods will now return an error
if they are called after <a href="/pkg/bufio/#Reader.Peek"><code>Peek</code></a>.
</p>
</dl><!-- bufio -->
<dl id="bytes"><dt><a href="/pkg/bytes/">bytes</a></dt>
<dd>
<p><!-- CL 137855 -->
The new function <a href="/pkg/bytes/#ReplaceAll"><code>ReplaceAll</code></a> returns a copy of
a byte slice with all non-overlapping instances of a value replaced by another.
</p>
<p><!-- CL 145098 -->
A pointer to a zero-value <a href="/pkg/bytes/#Reader"><code>Reader</code></a> is now
functionally equivalent to <a href="/pkg/bytes/#NewReader"><code>NewReader</code></a><code>(nil)</code>.
Prior to Go 1.12, the former could not be used as a substitute for the latter in all cases.
</p>
</dl><!-- bytes -->
<dl id="crypto/rand"><dt><a href="/pkg/crypto/rand/">crypto/rand</a></dt>
<dd>
<p><!-- CL 139419 -->
A warning will now be printed to standard error the first time
<code>Reader.Read</code> is blocked for more than 60 seconds waiting
to read entropy from the kernel.
</p>
<p><!-- CL 120055 -->
On FreeBSD, <code>Reader</code> now uses the <code>getrandom</code>
system call if available, <code>/dev/urandom</code> otherwise.
</p>
</dl><!-- crypto/rand -->
<dl id="crypto/rc4"><dt><a href="/pkg/crypto/rc4/">crypto/rc4</a></dt>
<dd>
<p><!-- CL 130397 -->
This release removes the assembly implementations, leaving only
the pure Go version. The Go compiler generates code that is
either slightly better or slightly worse, depending on the exact
CPU. RC4 is insecure and should only be used for compatibility
with legacy systems.
</p>
</dl><!-- crypto/rc4 -->
<dl id="crypto/tls"><dt><a href="/pkg/crypto/tls/">crypto/tls</a></dt>
<dd>
<p><!-- CL 143177 -->
If a client sends an initial message that does not look like TLS, the server
will no longer reply with an alert, and it will expose the underlying
<code>net.Conn</code> in the new field <code>Conn</code> of
<a href="/pkg/crypto/tls/#RecordHeaderError"><code>RecordHeaderError</code></a>.
</p>
</dl><!-- crypto/tls -->
<dl id="database/sql"><dt><a href="/pkg/database/sql/">database/sql</a></dt>
<dd>
<p><!-- CL 145738 -->
A query cursor can now be obtained by passing a
<a href="/pkg/database/sql/#Rows"><code>*Rows</code></a>
value to the <a href="/pkg/database/sql/#Row.Scan"><code>Row.Scan</code></a> method.
</p>
</dl><!-- database/sql -->
<dl id="expvar"><dt><a href="/pkg/expvar/">expvar</a></dt>
<dd>
<p><!-- CL 139537 -->
The new <a href="/pkg/expvar/#Map.Delete"><code>Delete</code></a> method allows
for deletion of key/value pairs from a <a href="/pkg/expvar/#Map"><code>Map</code></a>.
</p>
</dl><!-- expvar -->
<dl id="fmt"><dt><a href="/pkg/fmt/">fmt</a></dt>
<dd>
<p><!-- CL 142737 -->
Maps are now printed in key-sorted order to ease testing. The ordering rules are:
<ul>
<li>When applicable, nil compares low
<li>ints, floats, and strings order by <
<li>NaN compares less than non-NaN floats
<li>bool compares false before true
<li>Complex compares real, then imaginary
<li>Pointers compare by machine address
<li>Channel values compare by machine address
<li>Structs compare each field in turn
<li>Arrays compare each element in turn
<li>Interface values compare first by <code>reflect.Type</code> describing the concrete type
and then by concrete value as described in the previous rules.
</ul>
</p>
<p><!-- CL 129777 -->
When printing maps, non-reflexive key values like <code>NaN</code> were previously
displayed as <code>&lt;nil&gt;</code>. As of this release, the correct values are printed.
</p>
</dl><!-- fmt -->
<dl id="go/doc"><dt><a href="/pkg/go/doc/">go/doc</a></dt>
<dd>
<p><!-- CL 140958 -->
To address some outstanding issues in <a href="/cmd/doc/"><code>cmd/doc</code></a>,
this package has a new <a href="/pkg/go/doc/#Mode"><code>Mode</code></a> bit,
<code>PreserveAST</code>, which controls whether AST data is cleared.
</p>
</dl><!-- go/doc -->
<dl id="go/token"><dt><a href="/pkg/go/token/">go/token</a></dt>
<dd>
<p><!-- CL 134075 -->
The <a href="/pkg/go/token#File"><code>File</code></a> type has a new
<a href="/pkg/go/token#File.LineStart"><code>LineStart</code></a> field,
which returns the position of the start of a given line. This is especially useful
in programs that occasionally handle non-Go files, such as assembly, but wish to use
the <code>token.Pos</code> mechanism to identify file positions.
</p>
</dl><!-- go/token -->
<dl id="image"><dt><a href="/pkg/image/">image</a></dt>
<dd>
<p><!-- CL 118755 -->
The <a href="/pkg/image/#RegisterFormat"><code>RegisterFormat</code></a> function is now safe for concurrent use.
</p>
</dl><!-- image -->
<dl id="image/png"><dt><a href="/pkg/image/png/">image/png</a></dt>
<dd>
<p><!-- CL 134235 -->
Paletted images with fewer than 16 colors now encode to smaller outputs.
</p>
</dl><!-- image/png -->
<dl id="io"><dt><a href="/pkg/io/">io</a></dt>
<dd>
<p><!-- CL 139457 -->
The new <a href="/pkg/io#StringWriter"><code>StringWriter</code></a> interface wraps the
<a href="/pkg/io/#WriteString"><code>WriteString</code></a> function.
</p>
</dl><!-- io -->
<dl id="math"><dt><a href="/pkg/math/">math</a></dt>
<dd>
<p><!-- CL 153059 -->
The functions
<a href="/pkg/math/#Sin"><code>Sin</code></a>,
<a href="/pkg/math/#Cos"><code>Cos</code></a>,
<a href="/pkg/math/#Tan"><code>Tan</code></a>,
and <a href="/pkg/math/#Sincos"><code>Sincos</code></a> now
apply Payne-Hanek range reduction to huge arguments. This
produces more accurate answers, but they will not be bit-for-bit
identical with the results in earlier releases.
</p>
</dl><!-- math -->
<dl id="math/bits"><dt><a href="/pkg/math/bits/">math/bits</a></dt>
<dd>
<p><!-- CL 123157 -->
New extended precision operations <a href="/pkg/math/bits/#Add"><code>Add</code></a>, <a href="/pkg/math/bits/#Sub"><code>Sub</code></a>, <a href="/pkg/math/bits/#Mul"><code>Mul</code></a>, and <a href="/pkg/math/bits/#Div"><code>Div</code></a> are available in <code>uint</code>, <code>uint32</code>, and <code>uint64</code> versions.
</p>
</dl><!-- math/bits -->
<dl id="net"><dt><a href="/pkg/net/">net</a></dt>
<dd>
<p><!-- CL 146659 -->
The
<a href="/pkg/net/#Dialer.DualStack"><code>Dialer.DualStack</code></a> setting is now ignored and deprecated;
RFC 6555 Fast Fallback ("Happy Eyeballs") is now enabled by default. To disable, set
<a href="/pkg/net/#Dialer.FallbackDelay"><code>Dialer.FallbackDelay</code></a> to a negative value.
</p>
<p><!-- CL 107196 -->
Similarly, TCP keep-alives are now enabled by default if
<a href="/pkg/net/#Dialer.KeepAlive"><code>Dialer.KeepAlive</code></a> is zero.
To disable, set it to a negative value.
</p>
<p><!-- CL 113997 -->
On Linux, the <a href="http://man7.org/linux/man-pages/man2/splice.2.html"><code>splice</code> system call</a> is now used when copying from a
<a href="/pkg/net/#UnixConn"><code>UnixConn</code></a> to a
<a href="/pkg/net/#TCPConn"><code>TCPConn</code></a>.
</p>
</dl><!-- net -->
<dl id="net/http"><dt><a href="/pkg/net/http/">net/http</a></dt>
<dd>
<p><!-- CL 143177 -->
The HTTP server now rejects misdirected HTTP requests to HTTPS servers with a plaintext "400 Bad Request" response.
</p>
<p><!-- CL 130115 -->
The new <a href="/pkg/net/http/#Client.CloseIdleConnections"><code>Client.CloseIdleConnections</code></a>
method calls the <code>Client</code>'s underlying <code>Transport</code>'s <code>CloseIdleConnections</code>
if it has one.
</p>
<p><!-- CL 145398 -->
The <a href="/pkg/net/http/#Transport"><code>Transport</code></a> no longer rejects HTTP responses which declare
HTTP Trailers but don't use chunked encoding. Instead, the declared trailers are now just ignored.
</p>
<p><!-- CL 152080 --> <!-- CL 151857 -->
The <a href="/pkg/net/http/#Transport"><code>Transport</code></a> no longer handles <code>MAX_CONCURRENT_STREAMS</code> values
advertised from HTTP/2 servers as strictly as it did during Go 1.10 and Go 1.11. The default behavior is now back
to how it was in Go 1.9: each connection to a server can have up to <code>MAX_CONCURRENT_STREAMS</code> requests
active and then new TCP connections are created as needed. In Go 1.10 and Go 1.11 the <code>http2</code> package
would block and wait for requests to finish instead of creating new connections.
To get the stricter behavior back, import the
<a href="https://godoc.org/golang.org/x/net/http2"><code>golang.org/x/net/http2</code></a> package
directly and set
<a href="https://godoc.org/golang.org/x/net/http2#Transport.StrictMaxConcurrentStreams"><code>Transport.StrictMaxConcurrentStreams</code></a> to
<code>true</code>.
</p>
</dl><!-- net/http -->
<dl id="net/url"><dt><a href="/pkg/net/url/">net/url</a></dt>
<dd>
<p><!-- CL 159157, CL 160178 -->
<a href="/pkg/net/url/#Parse"><code>Parse</code></a>,
<a href="/pkg/net/url/#ParseRequestURI"><code>ParseRequestURI</code></a>,
and
<a href="/pkg/net/url/#URL.Parse"><code>URL.Parse</code></a>
now return an
error for URLs containing ASCII control characters, which includes NULL,
tab, and newlines.
</p>
</dl><!-- net/url -->
<dl id="net/http/httputil"><dt><a href="/pkg/net/http/httputil/">net/http/httputil</a></dt>
<dd>
<p><!-- CL 146437 -->
The <a href="/pkg/net/http/httputil/#ReverseProxy"><code>ReverseProxy</code></a> now automatically
proxies WebSocket requests.
</p>
</dl><!-- net/http/httputil -->
<dl id="os"><dt><a href="/pkg/os/">os</a></dt>
<dd>
<p><!-- CL 125443 -->
The new <a href="/pkg/os/#ProcessState.ExitCode"><code>ProcessState.ExitCode</code></a> method
returns the process's exit code.
</p>
<p><!-- CL 135075 -->
<code>ModeCharDevice</code> has been added to the <code>ModeType</code> bitmask, allowing for
<code>ModeDevice | ModeCharDevice</code> to be recovered when masking a
<a href="/pkg/os/#FileMode"><code>FileMode</code></a> with <code>ModeType</code>.
</p>
<p><!-- CL 139418 -->
The new function <a href="/pkg/os/#UserHomeDir"><code>UserHomeDir</code></a> returns the
current user's home directory.
</p>
<p><!-- CL 146020 -->
<a href="/pkg/os/#RemoveAll"><code>RemoveAll</code></a> now supports paths longer than 4096 characters
on most Unix systems.
</p>
<p><!-- CL 130676 -->
<a href="/pkg/os/#File.Sync"><code>File.Sync</code></a> now uses <code>F_FULLFSYNC</code> on macOS
to correctly flush the file contents to permanent storage.
This may cause the method to run more slowly than in previous releases.
</p>
<p><!--CL 155517 -->
<a href="/pkg/os/#File"><code>File</code></a> now supports
a <a href="/pkg/os/#File.SyscallConn"><code>SyscallConn</code></a>
method returning
a <a href="/pkg/syscall/#RawConn"><code>syscall.RawConn</code></a>
interface value. This may be used to invoke system-specific
operations on the underlying file descriptor.
</p>
</dl><!-- os -->
<dl id="path/filepath"><dt><a href="/pkg/path/filepath/">path/filepath</a></dt>
<dd>
<p><!-- CL 145220 -->
The <a href="/pkg/path/filepath/#IsAbs"><code>IsAbs</code></a> function now returns true when passed
a reserved filename on Windows such as <code>NUL</code>.
<a href="https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file#naming-conventions">List of reserved names.</a>
</p>
</dl><!-- path/filepath -->
<dl id="reflect"><dt><a href="/pkg/reflect/">reflect</a></dt>
<dd>
<p><!-- CL 33572 -->
A new <a href="/pkg/reflect#MapIter"><code>MapIter</code></a> type is
an iterator for ranging over a map. This type is exposed through the
<a href="/pkg/reflect#Value"><code>Value</code></a> type's new
<a href="/pkg/reflect#Value.MapRange"><code>MapRange</code></a> method.
This follows the same iteration semantics as a range statement, with <code>Next</code>
to advance the iterator, and <code>Key</code>/<code>Value</code> to access each entry.
</p>
</dl><!-- reflect -->
<dl id="regexp"><dt><a href="/pkg/regexp/">regexp</a></dt>
<dd>
<p><!-- CL 139784 -->
<a href="/pkg/regexp/#Regexp.Copy"><code>Copy</code></a> is no longer necessary
to avoid lock contention, so it has been given a partial deprecation comment.
<a href="/pkg/regexp/#Regexp.Copy"><code>Copy</code></a>
may still be appropriate if the reason for its use is to make two copies with
different <a href="/pkg/regexp/#Regexp.Longest"><code>Longest</code></a> settings.
</p>
</dl><!-- regexp -->
<dl id="runtime/debug"><dt><a href="/pkg/runtime/debug/">runtime/debug</a></dt>
<dd>
<p><!-- CL 144220 -->
A new <a href="/pkg/runtime/debug/#BuildInfo"><code>BuildInfo</code></a> type
exposes the build information read from the running binary, available only in
binaries built with module support. This includes the main package path, main
module information, and the module dependencies. This type is given through the
<a href="/pkg/runtime/debug/#ReadBuildInfo"><code>ReadBuildInfo</code></a> function
on <a href="/pkg/runtime/debug/#BuildInfo"><code>BuildInfo</code></a>.
</p>
</dl><!-- runtime/debug -->
<dl id="strings"><dt><a href="/pkg/strings/">strings</a></dt>
<dd>
<p><!-- CL 137855 -->
The new function <a href="/pkg/strings/#ReplaceAll"><code>ReplaceAll</code></a> returns a copy of
a string with all non-overlapping instances of a value replaced by another.
</p>
<p><!-- CL 145098 -->
A pointer to a zero-value <a href="/pkg/strings/#Reader"><code>Reader</code></a> is now
functionally equivalent to <a href="/pkg/strings/#NewReader"><code>NewReader</code></a><code>(nil)</code>.
Prior to Go 1.12, the former could not be used as a substitute for the latter in all cases.
</p>
<p><!-- CL 122835 -->
The new <a href="/pkg/strings/#Builder.Cap"><code>Builder.Cap</code></a> method returns the capacity of the builder's underlying byte slice.
</p>
<p><!-- CL 131495 -->
The character mapping functions <a href="/pkg/strings/#Map"><code>Map</code></a>,
<a href="/pkg/strings/#Title"><code>Title</code></a>,
<a href="/pkg/strings/#ToLower"><code>ToLower</code></a>,
<a href="/pkg/strings/#ToLowerSpecial"><code>ToLowerSpecial</code></a>,
<a href="/pkg/strings/#ToTitle"><code>ToTitle</code></a>,
<a href="/pkg/strings/#ToTitleSpecial"><code>ToTitleSpecial</code></a>,
<a href="/pkg/strings/#ToUpper"><code>ToUpper</code></a>, and
<a href="/pkg/strings/#ToUpperSpecial"><code>ToUpperSpecial</code></a>
now always guarantee to return valid UTF-8. In earlier releases, if the input was invalid UTF-8 but no character replacements
needed to be applied, these routines incorrectly returned the invalid UTF-8 unmodified.
</p>
</dl><!-- strings -->
<dl id="syscall"><dt><a href="/pkg/syscall/">syscall</a></dt>
<dd>
<p><!-- CL 138595 -->
64-bit inodes are now supported on FreeBSD 12. Some types have been adjusted accordingly.
</p>
<p><!-- CL 125456 -->
The Unix socket
(<a href="https://blogs.msdn.microsoft.com/commandline/2017/12/19/af_unix-comes-to-windows/"><code>AF_UNIX</code></a>)
address family is now supported for compatible versions of Windows.
</p>
<p><!-- CL 147117 -->
The new function <a href="/pkg/syscall/?GOOS=windows&GOARCH=amd64#Syscall18"><code>Syscall18</code></a>
has been introduced for Windows, allowing for calls with up to 18 arguments.
</p>
</dl><!-- syscall -->
<dl id="syscall/js"><dt><a href="/pkg/syscall/js/">syscall/js</a></dt>
<dd>
<p><!-- CL 153559 -->
<p>
The <code>Callback</code> type and <code>NewCallback</code> function have been renamed;
they are now called
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Func"><code>Func</code></a> and
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#FuncOf"><code>FuncOf</code></a>, respectively.
This is a breaking change, but WebAssembly support is still experimental
and not yet subject to the
<a href="/doc/go1compat">Go 1 compatibility promise</a>. Any code using the
old names will need to be updated.
</p>
<p><!-- CL 141644 -->
If a type implements the new
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Wrapper"><code>Wrapper</code></a>
interface,
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#ValueOf"><code>ValueOf</code></a>
will use it to return the JavaScript value for that type.
</p>
<p><!-- CL 143137 -->
The meaning of the zero
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Value"><code>Value</code></a>
has changed. It now represents the JavaScript <code>undefined</code> value
instead of the number zero.
This is a breaking change, but WebAssembly support is still experimental
and not yet subject to the
<a href="/doc/go1compat">Go 1 compatibility promise</a>. Any code relying on
the zero <a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Value"><code>Value</code></a>
to mean the number zero will need to be updated.
</p>
<p><!-- CL 144384 -->
The new
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Value.Truthy"><code>Value.Truthy</code></a>
method reports the
<a href="https://developer.mozilla.org/en-US/docs/Glossary/Truthy">JavaScript "truthiness"</a>
of a given value.
</p>
</dl><!-- syscall/js -->
<dl id="testing"><dt><a href="/pkg/testing/">testing</a></dt>
<dd>
<p><!-- CL 139258 -->
The <a href="/cmd/go/#hdr-Testing_flags"><code>-benchtime</code></a> flag now supports setting an explicit iteration count instead of a time when the value ends with an "<code>x</code>". For example, <code>-benchtime=100x</code> runs the benchmark 100 times.
</p>
</dl><!-- testing -->
<dl id="text/template"><dt><a href="/pkg/text/template/">text/template</a></dt>
<dd>
<p><!-- CL 142217 -->
When executing a template, long context values are no longer truncated in errors.
</p>
<p>
<code>executing "tmpl" at <.very.deep.context.v...>: map has no entry for key "notpresent"</code>
</p>
<p>
is now
</p>
<p>
<code>executing "tmpl" at <.very.deep.context.value.notpresent>: map has no entry for key "notpresent"</code>
</p>
<dd>
<p><!-- CL 143097 -->
If a user-defined function called by a template panics, the
panic is now caught and returned as an error by
the <code>Execute</code> or <code>ExecuteTemplate</code> method.
</p>
</dl><!-- text/template -->
<dl id="time"><dt><a href="/pkg/time/">time</a></dt>
<dd>
<p><!-- CL 151299 -->
The time zone database in <code>$GOROOT/lib/time/zoneinfo.zip</code>
has been updated to version 2018i. Note that this ZIP file is
only used if a time zone database is not provided by the operating
system.
</p>
</dl><!-- time -->
<dl id="unsafe"><dt><a href="/pkg/unsafe/">unsafe</a></dt>
<dd>
<p><!-- CL 146058 -->
It is invalid to convert a nil <code>unsafe.Pointer</code> to <code>uintptr</code> and back with arithmetic.
(This was already invalid, but will now cause the compiler to misbehave.)
</p>
</dl><!-- unsafe -->

File diff suppressed because it is too large Load Diff

View File

@@ -1,924 +0,0 @@
<!--{
"Title": "Go 1.14 Release Notes",
"Path": "/doc/go1.14"
}-->
<!--
NOTE: In this document and others in this directory, the convention is to
set fixed-width phrases with non-fixed-width spaces, as in
<code>hello</code> <code>world</code>.
Do not send CLs removing the interior tags from such phrases.
-->
<style>
main ul li { margin: 0.5em 0; }
</style>
<h2 id="introduction">Introduction to Go 1.14</h2>
<p>
The latest Go release, version 1.14, arrives six months after <a href="go1.13">Go 1.13</a>.
Most of its changes are in the implementation of the toolchain, runtime, and libraries.
As always, the release maintains the Go 1 <a href="/doc/go1compat.html">promise of compatibility</a>.
We expect almost all Go programs to continue to compile and run as before.
</p>
<p>
Module support in the <code>go</code> command is now ready for production use,
and we encourage all users to <a href="https://blog.golang.org/migrating-to-go-modules">migrate to Go
modules for dependency management</a>. If you are unable to migrate due to a problem in the Go
toolchain, please ensure that the problem has an
<a href="https://golang.org/issue?q=is%3Aissue+is%3Aopen+label%3Amodules">open issue</a>
filed. (If the issue is not on the <code>Go1.15</code> milestone, please let us
know why it prevents you from migrating so that we can prioritize it
appropriately.)
</p>
<h2 id="language">Changes to the language</h2>
<p>
Per the <a href="https://github.com/golang/proposal/blob/master/design/6977-overlapping-interfaces.md">overlapping interfaces proposal</a>,
Go 1.14 now permits embedding of interfaces with overlapping method sets:
methods from an embedded interface may have the same names and identical signatures
as methods already present in the (embedding) interface. This solves problems that typically
(but not exclusively) occur with diamond-shaped embedding graphs.
Explicitly declared methods in an interface must remain
<a href="https://tip.golang.org/ref/spec#Uniqueness_of_identifiers">unique</a>, as before.
</p>
<h2 id="ports">Ports</h2>
<h3 id="darwin">Darwin</h3>
<p>
Go 1.14 is the last release that will run on macOS 10.11 El Capitan.
Go 1.15 will require macOS 10.12 Sierra or later.
</p>
<p><!-- golang.org/issue/34749 -->
Go 1.14 is the last Go release to support 32-bit binaries on
macOS (the <code>darwin/386</code> port). They are no longer
supported by macOS, starting with macOS 10.15 (Catalina).
Go continues to support the 64-bit <code>darwin/amd64</code> port.
</p>
<p><!-- golang.org/issue/34751 -->
Go 1.14 will likely be the last Go release to support 32-bit
binaries on iOS, iPadOS, watchOS, and tvOS
(the <code>darwin/arm</code> port). Go continues to support the
64-bit <code>darwin/arm64</code> port.
</p>
<h3 id="windows">Windows</h3>
<p><!-- CL 203601 -->
Go binaries on Windows now
have <a href="https://docs.microsoft.com/en-us/windows/win32/memory/data-execution-prevention">DEP
(Data Execution Prevention)</a> enabled.
</p>
<p><!-- CL 202439 -->
On Windows, creating a file
via <a href="/pkg/os#CreateFile"><code>os.OpenFile</code></a> with
the <a href="/pkg/os/#O_CREATE"><code>os.O_CREATE</code></a> flag, or
via <a href="/pkg/syscall#Open"><code>syscall.Open</code></a> with
the <a href="/pkg/syscall#O_CREAT"><code>syscall.O_CREAT</code></a>
flag, will now create the file as read-only if the
bit <code>0o200</code> (owner write permission) is not set in the
permission argument. This makes the behavior on Windows more like
that on Unix systems.
</p>
<h3 id="wasm">WebAssembly</h3>
<p><!-- CL 203600 -->
JavaScript values referenced from Go via <code>js.Value</code>
objects can now be garbage collected.
</p>
<p><!-- CL 203600 -->
<code>js.Value</code> values can no longer be compared using
the <code>==</code> operator, and instead must be compared using
their <code>Equal</code> method.
</p>
<p><!-- CL 203600 -->
<code>js.Value</code> now
has <code>IsUndefined</code>, <code>IsNull</code>,
and <code>IsNaN</code> methods.
</p>
<h3 id="riscv">RISC-V</h3>
<p><!-- Issue 27532 -->
Go 1.14 contains experimental support for 64-bit RISC-V on Linux
(<code>GOOS=linux</code>, <code>GOARCH=riscv64</code>). Be aware
that performance, assembly syntax stability, and possibly
correctness are a work in progress.
</p>
<h3 id="freebsd">FreeBSD</h3>
<p><!-- CL 199919 -->
Go now supports the 64-bit ARM architecture on FreeBSD 12.0 or later (the
<code>freebsd/arm64</code> port).
</p>
<h3 id="nacl">Native Client (NaCl)</h3>
<p><!-- golang.org/issue/30439 -->
As <a href="go1.13#ports">announced</a> in the Go 1.13 release notes,
Go 1.14 drops support for the Native Client platform (<code>GOOS=nacl</code>).
</p>
<h3 id="illumos">Illumos</h3>
<p><!-- CL 203758 -->
The runtime now respects zone CPU caps
(the <code>zone.cpu-cap</code> resource control)
for <code>runtime.NumCPU</code> and the default value
of <code>GOMAXPROCS</code>.
</p>
<h2 id="tools">Tools</h2>
<h3 id="go-command">Go command</h3>
<h4 id="vendor">Vendoring</h4>
<!-- golang.org/issue/33848 -->
<p>
When the main module contains a top-level <code>vendor</code> directory and
its <code>go.mod</code> file specifies <code>go</code> <code>1.14</code> or
higher, the <code>go</code> command now defaults to <code>-mod=vendor</code>
for operations that accept that flag. A new value for that flag,
<code>-mod=mod</code>, causes the <code>go</code> command to instead load
modules from the module cache (as when no <code>vendor</code> directory is
present).
</p>
<p>
When <code>-mod=vendor</code> is set (explicitly or by default), the
<code>go</code> command now verifies that the main module's
<code>vendor/modules.txt</code> file is consistent with its
<code>go.mod</code> file.
</p>
<p>
<code>go</code> <code>list</code> <code>-m</code> no longer silently omits
transitive dependencies that do not provide packages in
the <code>vendor</code> directory. It now fails explicitly if
<code>-mod=vendor</code> is set and information is requested for a module not
mentioned in <code>vendor/modules.txt</code>.
</p>
<h4 id="go-flags">Flags</h4>
<p><!-- golang.org/issue/32502, golang.org/issue/30345 -->
The <code>go</code> <code>get</code> command no longer accepts
the <code>-mod</code> flag. Previously, the flag's setting either
<a href="https://golang.org/issue/30345">was ignored</a> or
<a href="https://golang.org/issue/32502">caused the build to fail</a>.
</p>
<p><!-- golang.org/issue/33326 -->
<code>-mod=readonly</code> is now set by default when the <code>go.mod</code>
file is read-only and no top-level <code>vendor</code> directory is present.
</p>
<p><!-- golang.org/issue/31481 -->
<code>-modcacherw</code> is a new flag that instructs the <code>go</code>
command to leave newly-created directories in the module cache at their
default permissions rather than making them read-only.
The use of this flag makes it more likely that tests or other tools will
accidentally add files not included in the module's verified checksum.
However, it allows the use of <code>rm</code> <code>-rf</code>
(instead of <code>go</code> <code>clean</code> <code>-modcache</code>)
to remove the module cache.
</p>
<p><!-- golang.org/issue/34506 -->
<code>-modfile=file</code> is a new flag that instructs the <code>go</code>
command to read (and possibly write) an alternate <code>go.mod</code> file
instead of the one in the module root directory. A file
named <code>go.mod</code> must still be present in order to determine the
module root directory, but it is not accessed. When <code>-modfile</code> is
specified, an alternate <code>go.sum</code> file is also used: its path is
derived from the <code>-modfile</code> flag by trimming the <code>.mod</code>
extension and appending <code>.sum</code>.
</p>
<h4 id="go-env-vars">Environment variables</h4>
<p><!-- golang.org/issue/32966 -->
<code>GOINSECURE</code> is a new environment variable that instructs
the <code>go</code> command to not require an HTTPS connection, and to skip
certificate validation, when fetching certain modules directly from their
origins. Like the existing <code>GOPRIVATE</code> variable, the value
of <code>GOINSECURE</code> is a comma-separated list of glob patterns.
</p>
<h4 id="commands-outside-modules">Commands outside modules</h4>
<p><!-- golang.org/issue/32027 -->
When module-aware mode is enabled explicitly (by setting
<code>GO111MODULE=on</code>), most module commands have more
limited functionality if no <code>go.mod</code> file is present. For
example, <code>go</code> <code>build</code>,
<code>go</code> <code>run</code>, and other build commands can only build
packages in the standard library and packages specified as <code>.go</code>
files on the command line.
</p>
<p>
Previously, the <code>go</code> command would resolve each package path
to the latest version of a module but would not record the module path
or version. This resulted in <a href="https://golang.org/issue/32027">slow,
non-reproducible builds</a>.
</p>
<p>
<code>go</code> <code>get</code> continues to work as before, as do
<code>go</code> <code>mod</code> <code>download</code> and
<code>go</code> <code>list</code> <code>-m</code> with explicit versions.
</p>
<h4 id="incompatible-versions"><code>+incompatible</code> versions</h4>
<!-- golang.org/issue/34165 -->
<p>
If the latest version of a module contains a <code>go.mod</code> file,
<code>go</code> <code>get</code> will no longer upgrade to an
<a href="/cmd/go/#hdr-Module_compatibility_and_semantic_versioning">incompatible</a>
major version of that module unless such a version is requested explicitly
or is already required.
<code>go</code> <code>list</code> also omits incompatible major versions
for such a module when fetching directly from version control, but may
include them if reported by a proxy.
</p>
<h4 id="go.mod"><code>go.mod</code> file maintenance</h4>
<!-- golang.org/issue/34822 -->
<p>
<code>go</code> commands other than
<code>go</code> <code>mod</code> <code>tidy</code> no longer
remove a <code>require</code> directive that specifies a version of an indirect dependency
that is already implied by other (transitive) dependencies of the main
module.
</p>
<p>
<code>go</code> commands other than
<code>go</code> <code>mod</code> <code>tidy</code> no longer
edit the <code>go.mod</code> file if the changes are only cosmetic.
</p>
<p>
When <code>-mod=readonly</code> is set, <code>go</code> commands will no
longer fail due to a missing <code>go</code> directive or an erroneous
<code>//&nbsp;indirect</code> comment.
</p>
<h4 id="module-downloading">Module downloading</h4>
<p><!-- golang.org/issue/26092 -->
The <code>go</code> command now supports Subversion repositories in module mode.
</p>
<p><!-- golang.org/issue/30748 -->
The <code>go</code> command now includes snippets of plain-text error messages
from module proxies and other HTTP servers.
An error message will only be shown if it is valid UTF-8 and consists of only
graphic characters and spaces.
</p>
<h4 id="go-test">Testing</h4>
<p><!-- golang.org/issue/24929 -->
<code>go test -v</code> now streams <code>t.Log</code> output as it happens,
rather than at the end of all tests.
</p>
<h2 id="runtime">Runtime</h2>
<p><!-- CL 190098 -->
This release improves the performance of most uses
of <code>defer</code> to incur almost zero overhead compared to
calling the deferred function directly.
As a result, <code>defer</code> can now be used in
performance-critical code without overhead concerns.
</p>
<p><!-- CL 201760, CL 201762 and many others -->
Goroutines are now asynchronously preemptible.
As a result, loops without function calls no longer potentially
deadlock the scheduler or significantly delay garbage collection.
This is supported on all platforms except <code>windows/arm</code>,
<code>darwin/arm</code>, <code>js/wasm</code>, and
<code>plan9/*</code>.
</p>
<p>
A consequence of the implementation of preemption is that on Unix
systems, including Linux and macOS systems, programs built with Go
1.14 will receive more signals than programs built with earlier
releases.
This means that programs that use packages
like <a href="/pkg/syscall/"><code>syscall</code></a>
or <a href="https://godoc.org/golang.org/x/sys/unix"><code>golang.org/x/sys/unix</code></a>
will see more slow system calls fail with <code>EINTR</code> errors.
Those programs will have to handle those errors in some way, most
likely looping to try the system call again. For more
information about this
see <a href="http://man7.org/linux/man-pages/man7/signal.7.html"><code>man
7 signal</code></a> for Linux systems or similar documentation for
other systems.
</p>
<p><!-- CL 201765, CL 195701 and many others -->
The page allocator is more efficient and incurs significantly less
lock contention at high values of <code>GOMAXPROCS</code>.
This is most noticeable as lower latency and higher throughput for
large allocations being done in parallel and at a high rate.
</p>
<p><!-- CL 171844 and many others -->
Internal timers, used by
<a href="/pkg/time/#After"><code>time.After</code></a>,
<a href="/pkg/time/#Tick"><code>time.Tick</code></a>,
<a href="/pkg/net/#Conn"><code>net.Conn.SetDeadline</code></a>,
and friends, are more efficient, with less lock contention and fewer
context switches.
This is a performance improvement that should not cause any user
visible changes.
</p>
<h2 id="compiler">Compiler</h2>
<p><!-- CL 162237 -->
This release adds <code>-d=checkptr</code> as a compile-time option
for adding instrumentation to check that Go code is following
<code>unsafe.Pointer</code> safety rules dynamically.
This option is enabled by default (except on Windows) with
the <code>-race</code> or <code>-msan</code> flags, and can be
disabled with <code>-gcflags=all=-d=checkptr=0</code>.
Specifically, <code>-d=checkptr</code> checks the following:
</p>
<ol>
<li>
When converting <code>unsafe.Pointer</code> to <code>*T</code>,
the resulting pointer must be aligned appropriately
for <code>T</code>.
</li>
<li>
If the result of pointer arithmetic points into a Go heap object,
one of the <code>unsafe.Pointer</code>-typed operands must point
into the same object.
</li>
</ol>
<p>
Using <code>-d=checkptr</code> is not currently recommended on
Windows because it causes false alerts in the standard library.
</p>
<p><!-- CL 204338 -->
The compiler can now emit machine-readable logs of key optimizations
using the <code>-json</code> flag, including inlining, escape
analysis, bounds-check elimination, and nil-check elimination.
</p>
<p><!-- CL 196959 -->
Detailed escape analysis diagnostics (<code>-m=2</code>) now work again.
This had been dropped from the new escape analysis implementation in
the previous release.
</p>
<p><!-- CL 196217 -->
All Go symbols in macOS binaries now begin with an underscore,
following platform conventions.
</p>
<p><!-- CL 202117 -->
This release includes experimental support for compiler-inserted
coverage instrumentation for fuzzing.
See <a href="https://golang.org/issue/14565">issue 14565</a> for more
details.
This API may change in future releases.
</p>
<p><!-- CL 174704 --><!-- CL 196784 -->
Bounds check elimination now uses information from slice creation and can
eliminate checks for indexes with types smaller than <code>int</code>.
</p>
<h2 id="library">Core library</h2>
<h3 id="hash/maphash">New byte sequence hashing package</h3>
<p> <!-- golang.org/issue/28322, CL 186877 -->
Go 1.14 includes a new package,
<a href="/pkg/hash/maphash/"><code>hash/maphash</code></a>,
which provides hash functions on byte sequences.
These hash functions are intended to be used to implement hash tables or
other data structures that need to map arbitrary strings or byte
sequences to a uniform distribution on unsigned 64-bit integers.
</p>
<p>
The hash functions are collision-resistant but not cryptographically secure.
</p>
<p>
The hash value of a given byte sequence is consistent within a
single process, but will be different in different processes.
</p>
<h3 id="minor_library_changes">Minor changes to the library</h3>
<p>
As always, there are various minor changes and updates to the library,
made with the Go 1 <a href="/doc/go1compat">promise of compatibility</a>
in mind.
</p>
<dl id="crypto/tls"><dt><a href="/pkg/crypto/tls/">crypto/tls</a></dt>
<dd>
<p><!-- CL 191976 -->
Support for SSL version 3.0 (SSLv3) has been removed. Note that SSLv3 is the
<a href="https://tools.ietf.org/html/rfc7568">cryptographically broken</a>
protocol predating TLS.
</p>
<p><!-- CL 191999 -->
TLS 1.3 can't be disabled via the <code>GODEBUG</code> environment
variable anymore. Use the
<a href="/pkg/crypto/tls/#Config.MaxVersion"><code>Config.MaxVersion</code></a>
field to configure TLS versions.
</p>
<p><!-- CL 205059 -->
When multiple certificate chains are provided through the
<a href="/pkg/crypto/tls/#Config.Certificates"><code>Config.Certificates</code></a>
field, the first one compatible with the peer is now automatically
selected. This allows for example providing an ECDSA and an RSA
certificate, and letting the package automatically select the best one.
Note that the performance of this selection is going to be poor unless the
<a href="/pkg/crypto/tls/#Certificate.Leaf"><code>Certificate.Leaf</code></a>
field is set. The
<a href="/pkg/crypto/tls/#Config.NameToCertificate"><code>Config.NameToCertificate</code></a>
field, which only supports associating a single certificate with
a give name, is now deprecated and should be left as <code>nil</code>.
Similarly the
<a href="/pkg/crypto/tls/#Config.BuildNameToCertificate"><code>Config.BuildNameToCertificate</code></a>
method, which builds the <code>NameToCertificate</code> field
from the leaf certificates, is now deprecated and should not be
called.
</p>
<p><!-- CL 175517 -->
The new <a href="/pkg/crypto/tls/#CipherSuites"><code>CipherSuites</code></a>
and <a href="/pkg/crypto/tls/#InsecureCipherSuites"><code>InsecureCipherSuites</code></a>
functions return a list of currently implemented cipher suites.
The new <a href="/pkg/crypto/tls/#CipherSuiteName"><code>CipherSuiteName</code></a>
function returns a name for a cipher suite ID.
</p>
<p><!-- CL 205058, 205057 -->
The new <a href="/pkg/crypto/tls/#ClientHelloInfo.SupportsCertificate">
<code>(*ClientHelloInfo).SupportsCertificate</code></a> and
<a href="/pkg/crypto/tls/#CertificateRequestInfo.SupportsCertificate">
<code>(*CertificateRequestInfo).SupportsCertificate</code></a>
methods expose whether a peer supports a certain certificate.
</p>
<p><!-- CL 174329 -->
The <code>tls</code> package no longer supports the legacy Next Protocol
Negotiation (NPN) extension and now only supports ALPN. In previous
releases it supported both. There are no API changes and applications
should function identically as before. Most other clients and servers have
already removed NPN support in favor of the standardized ALPN.
</p>
<p><!-- CL 205063, 205062 -->
RSA-PSS signatures are now used when supported in TLS 1.2 handshakes. This
won't affect most applications, but custom
<a href="/pkg/crypto/tls/#Certificate.PrivateKey"><code>Certificate.PrivateKey</code></a>
implementations that don't support RSA-PSS signatures will need to use the new
<a href="/pkg/crypto/tls/#Certificate.SupportedSignatureAlgorithms">
<code>Certificate.SupportedSignatureAlgorithms</code></a>
field to disable them.
</p>
<p><!-- CL 205059, 205059 -->
<a href="/pkg/crypto/tls/#Config.Certificates"><code>Config.Certificates</code></a> and
<a href="/pkg/crypto/tls/#Config.GetCertificate"><code>Config.GetCertificate</code></a>
can now both be nil if
<a href="/pkg/crypto/tls/#Config.GetConfigForClient"><code>Config.GetConfigForClient</code></a>
is set. If the callbacks return neither certificates nor an error, the
<code>unrecognized_name</code> is now sent.
</p>
<p><!-- CL 205058 -->
The new <a href="/pkg/crypto/tls/#CertificateRequestInfo.Version"><code>CertificateRequestInfo.Version</code></a>
field provides the TLS version to client certificates callbacks.
</p>
<p><!-- CL 205068 -->
The new <code>TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256</code> and
<code>TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256</code> constants use
the final names for the cipher suites previously referred to as
<code>TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305</code> and
<code>TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305</code>.
</p>
</dd>
</dl><!-- crypto/tls -->
<dl id="crypto/x509"><dt><a href="/pkg/crypto/x509/">crypto/x509</a></dt>
<dd>
<p><!-- CL 204046 -->
<a href="/pkg/crypto/x509/#Certificate.CreateCRL"><code>Certificate.CreateCRL</code></a>
now supports Ed25519 issuers.
</p>
</dd>
</dl>
<dl id="debug/dwarf"><dt><a href="/pkg/debug/dwarf/">debug/dwarf</a></dt>
<dd>
<p><!-- CL 175138 -->
The <code>debug/dwarf</code> package now supports reading DWARF
version 5.
</p>
<p>
The new
method <a href="/pkg/debug/dwarf/#Data.AddSection"><code>(*Data).AddSection</code></a>
supports adding arbitrary new DWARF sections from the input file
to the DWARF <code>Data</code>.
</p>
<p><!-- CL 192698 -->
The new
method <a href="/pkg/debug/dwarf/#Reader.ByteOrder"><code>(*Reader).ByteOrder</code></a>
returns the byte order of the current compilation unit.
This may be used to interpret attributes that are encoded in the
native ordering, such as location descriptions.
</p>
<p><!-- CL 192699 -->
The new
method <a href="/pkg/debug/dwarf/#LineReader.Files"><code>(*LineReader).Files</code></a>
returns the file name table from a line reader.
This may be used to interpret the value of DWARF attributes such
as <code>AttrDeclFile</code>.
</p>
</dd>
</dl><!-- debug/dwarf -->
<dl id="encoding/asn1"><dt><a href="/pkg/encoding/asn1/">encoding/asn1</a></dt>
<dd>
<p><!-- CL 126624 -->
<a href="/pkg/encoding/asn1/#Unmarshal"><code>Unmarshal</code></a>
now supports ASN.1 string type BMPString, represented by the new
<a href="/pkg/encoding/asn1/#TagBMPString"><code>TagBMPString</code></a>
constant.
</p>
</dd>
</dl><!-- encoding/asn1 -->
<dl id="encoding/json"><dt><a href="/pkg/encoding/json/">encoding/json</a></dt>
<dd>
<p><!-- CL 200677 -->
The <a href="/pkg/encoding/json/#Decoder"><code>Decoder</code></a>
type supports a new
method <a href="/pkg/encoding/json/#Decoder.InputOffset"><code>InputOffset</code></a>
that returns the input stream byte offset of the current
decoder position.
</p>
<p><!-- CL 200217 -->
<a href="/pkg/encoding/json/#Compact"><code>Compact</code></a> no longer
escapes the <code>U+2028</code> and <code>U+2029</code> characters, which
was never a documented feature. For proper escaping, see <a
href="/pkg/encoding/json/#HTMLEscape"><code>HTMLEscape</code></a>.
</p>
<p><!-- CL 195045 -->
<a href="/pkg/encoding/json/#Number"><code>Number</code></a> no longer
accepts invalid numbers, to follow the documented behavior more closely.
If a program needs to accept invalid numbers like the empty string,
consider wrapping the type with <a href="/pkg/encoding/json/#Unmarshaler"><code>Unmarshaler</code></a>.
</p>
<p><!-- CL 200237 -->
<a href="/pkg/encoding/json/#Unmarshal"><code>Unmarshal</code></a>
can now support map keys with string underlying type which implement
<a href="/pkg/encoding/#TextUnmarshaler"><code>encoding.TextUnmarshaler</code></a>.
</p>
</dd>
</dl><!-- encoding/json -->
<dl id="go/build"><dt><a href="/pkg/go/build/">go/build</a></dt>
<dd>
<p><!-- CL 203820, 211657 -->
The <a href="/pkg/go/build/#Context"><code>Context</code></a>
type has a new field <code>Dir</code> which may be used to set
the working directory for the build.
The default is the current directory of the running process.
In module mode, this is used to locate the main module.
</p>
</dd>
</dl><!-- go/build -->
<dl id="go/doc"><dt><a href="/pkg/go/doc/">go/doc</a></dt>
<dd>
<p><!-- CL 204830 -->
The new
function <a href="/pkg/go/doc/#NewFromFiles"><code>NewFromFiles</code></a>
computes package documentation from a list
of <code>*ast.File</code>'s and associates examples with the
appropriate package elements.
The new information is available in a new <code>Examples</code>
field
in the <a href="/pkg/go/doc/#Package"><code>Package</code></a>, <a href="/pkg/go/doc/#Type"><code>Type</code></a>,
and <a href="/pkg/go/doc/#Func"><code>Func</code></a> types, and a
new <a href="/pkg/go/doc/#Example.Suffix"><code>Suffix</code></a>
field in
the <a href="/pkg/go/doc/#Example"><code>Example</code></a>
type.
</p>
</dd>
</dl><!-- go/doc -->
<dl id="io/ioutil"><dt><a href="/pkg/io/ioutil/">io/ioutil</a></dt>
<dd>
<p><!-- CL 198488 -->
<a href="/pkg/io/ioutil/#TempDir"><code>TempDir</code></a> can now create directories
whose names have predictable prefixes and suffixes.
As with <a href="/pkg/io/ioutil/#TempFile"><code>TempFile</code></a>, if the pattern
contains a '*', the random string replaces the last '*'.
</p>
</dd>
</dl>
<dl id="log"><dt><a href="/pkg/log/">log</a></dt>
<dd>
<p><!-- CL 186182 -->
The
new <a href="https://tip.golang.org/pkg/log/#pkg-constants"><code>Lmsgprefix</code></a>
flag may be used to tell the logging functions to emit the
optional output prefix immediately before the log message rather
than at the start of the line.
</p>
</dd>
</dl><!-- log -->
<dl id="math"><dt><a href="/pkg/math/">math</a></dt>
<dd>
<p><!-- CL 127458 -->
The new <a href="/pkg/math/#FMA"><code>FMA</code></a> function
computes <code>x*y+z</code> in floating point with no
intermediate rounding of the <code>x*y</code>
computation. Several architectures implement this computation
using dedicated hardware instructions for additional performance.
</p>
</dd>
</dl><!-- math -->
<dl id="math/big"><dt><a href="/pkg/math/big/">math/big</a></dt>
<dd>
<p><!-- CL 164972 -->
The <a href="/pkg/math/big/#Int.GCD"><code>GCD</code></a> method
now allows the inputs <code>a</code> and <code>b</code> to be
zero or negative.
</p>
</dd>
</dl><!-- math/big -->
<dl id="math/bits"><dt><a href="/pkg/math/bits/">math/bits</a></dt>
<dd>
<p><!-- CL 197838 -->
The new functions
<a href="/pkg/math/bits/#Rem"><code>Rem</code></a>,
<a href="/pkg/math/bits/#Rem32"><code>Rem32</code></a>, and
<a href="/pkg/math/bits/#Rem64"><code>Rem64</code></a>
support computing a remainder even when the quotient overflows.
</p>
</dd>
</dl><!-- math/bits -->
<dl id="mime"><dt><a href="/pkg/mime/">mime</a></dt>
<dd>
<p><!-- CL 186927 -->
The default type of <code>.js</code> and <code>.mjs</code> files
is now <code>text/javascript</code> rather
than <code>application/javascript</code>.
This is in accordance
with <a href="https://datatracker.ietf.org/doc/draft-ietf-dispatch-javascript-mjs/">an
IETF draft</a> that treats <code>application/javascript</code> as obsolete.
</p>
</dd>
</dl><!-- mime -->
<dl id="mime/multipart"><dt><a href="/pkg/mime/multipart/">mime/multipart</a></dt>
<dd>
<p>
The
new <a href="/pkg/mime/multipart/#Reader"><code>Reader</code></a>
method <a href="/pkg/mime/multipart/#Reader.NextRawPart"><code>NextRawPart</code></a>
supports fetching the next MIME part without transparently
decoding <code>quoted-printable</code> data.
</p>
</dd>
</dl><!-- mime/multipart -->
<dl id="net/http"><dt><a href="/pkg/net/http/">net/http</a></dt>
<dd>
<p><!-- CL 200760 -->
The new <a href="/pkg/net/http/#Header"><code>Header</code></a>
method <a href="/pkg/net/http/#Header.Values"><code>Values</code></a>
can be used to fetch all values associated with a
canonicalized key.
</p>
<p><!-- CL 61291 -->
The
new <a href="/pkg/net/http/#Transport"><code>Transport</code></a>
field <a href="/pkg/net/http/#Transport.DialTLSContext"><code>DialTLSContext</code></a>
can be used to specify an optional dial function for creating
TLS connections for non-proxied HTTPS requests.
This new field can be used instead
of <a href="/pkg/net/http/#Transport.DialTLS"><code>DialTLS</code></a>,
which is now considered deprecated; <code>DialTLS</code> will
continue to work, but new code should
use <code>DialTLSContext</code>, which allows the transport to
cancel dials as soon as they are no longer needed.
</p>
<p><!-- CL 192518, CL 194218 -->
On Windows, <a href="/pkg/net/http/#ServeFile"><code>ServeFile</code></a> now correctly
serves files larger than 2GB.
</p>
</dd>
</dl><!-- net/http -->
<dl id="net/http/httptest"><dt><a href="/pkg/net/http/httptest/">net/http/httptest</a></dt>
<dd>
<p><!-- CL 201557 -->
The
new <a href="/pkg/net/http/httptest/#Server"><code>Server</code></a>
field <a href="/pkg/net/http/httptest/#Server.EnableHTTP2"><code>EnableHTTP2</code></a>
supports enabling HTTP/2 on the test server.
</p>
</dd>
</dl><!-- net/http/httptest -->
<dl id="net/textproto"><dt><a href="/pkg/net/textproto/">net/textproto</a></dt>
<dd>
<p><!-- CL 200760 -->
The
new <a href="/pkg/net/textproto/#MIMEHeader"><code>MIMEHeader</code></a>
method <a href="/pkg/net/textproto/#MIMEHeader.Values"><code>Values</code></a>
can be used to fetch all values associated with a canonicalized
key.
</p>
</dd>
</dl><!-- net/textproto -->
<dl id="net/url"><dt><a href="/pkg/net/url/">net/url</a></dt>
<dd>
<p><!-- CL 185117 -->
When parsing of a URL fails
(for example by <a href="/pkg/net/url/#Parse"><code>Parse</code></a>
or <a href="/pkg/net/url/#ParseRequestURI"><code>ParseRequestURI</code></a>),
the resulting <a href="/pkg/net/url/#Error.Error"><code>Error</code></a> message
will now quote the unparsable URL.
This provides clearer structure and consistency with other parsing errors.
</p>
</dd>
</dl><!-- net/url -->
<dl id="os/signal"><dt><a href="/pkg/os/signal/">os/signal</a></dt>
<dd>
<p><!-- CL 187739 -->
On Windows,
the <code>CTRL_CLOSE_EVENT</code>, <code>CTRL_LOGOFF_EVENT</code>,
and <code>CTRL_SHUTDOWN_EVENT</code> events now generate
a <code>syscall.SIGTERM</code> signal, similar to how Control-C
and Control-Break generate a <code>syscall.SIGINT</code> signal.
</p>
</dd>
</dl><!-- os/signal -->
<dl id="plugin"><dt><a href="/pkg/plugin/">plugin</a></dt>
<dd>
<p><!-- CL 191617 -->
The <code>plugin</code> package now supports <code>freebsd/amd64</code>.
</p>
</dd>
</dl><!-- plugin -->
<dl id="reflect"><dt><a href="/pkg/reflect/">reflect</a></dt>
<dd>
<p><!-- CL 85661 -->
<a href="/pkg/reflect#StructOf"><code>StructOf</code></a> now
supports creating struct types with unexported fields, by
setting the <code>PkgPath</code> field in
a <code>StructField</code> element.
</p>
</dd>
</dl><!-- reflect -->
<dl id="pkg-runtime"><dt><a href="/pkg/runtime/">runtime</a></dt>
<dd>
<p><!-- CL 200081 -->
<code>runtime.Goexit</code> can no longer be aborted by a
recursive <code>panic</code>/<code>recover</code>.
</p>
<p><!-- CL 188297, CL 191785 -->
On macOS, <code>SIGPIPE</code> is no longer forwarded to signal
handlers installed before the Go runtime is initialized.
This is necessary because macOS delivers <code>SIGPIPE</code>
<a href="https://golang.org/issue/33384">to the main thread</a>
rather than the thread writing to the closed pipe.
</p>
</dd>
</dl><!-- runtime -->
<dl id="runtime/pprof"><dt><a href="/pkg/runtime/pprof/">runtime/pprof</a></dt>
<dd>
<p><!-- CL 204636, 205097 -->
The generated profile no longer includes the pseudo-PCs used for inline
marks. Symbol information of inlined functions is encoded in
<a href="https://github.com/google/pprof/blob/5e96527/proto/profile.proto#L177-L184">the format</a>
the pprof tool expects. This is a fix for the regression introduced
during recent releases.
</p>
</dd>
</dl><!-- runtime/pprof -->
<dl id="strconv"><dt><a href="/pkg/strconv/">strconv</a></dt>
<dd>
<p>
The <a href="/pkg/strconv/#NumError"><code>NumError</code></a>
type now has
an <a href="/pkg/strconv/#NumError.Unwrap"><code>Unwrap</code></a>
method that may be used to retrieve the reason that a conversion
failed.
This supports using <code>NumError</code> values
with <a href="/pkg/errors/#Is"><code>errors.Is</code></a> to see
if the underlying error
is <a href="/pkg/strconv/#pkg-variables"><code>strconv.ErrRange</code></a>
or <a href="/pkg/strconv/#pkg-variables"><code>strconv.ErrSyntax</code></a>.
</p>
</dd>
</dl><!-- strconv -->
<dl id="sync"><dt><a href="/pkg/sync/">sync</a></dt>
<dd>
<p><!-- CL 200577 -->
Unlocking a highly contended <code>Mutex</code> now directly
yields the CPU to the next goroutine waiting for
that <code>Mutex</code>. This significantly improves the
performance of highly contended mutexes on high CPU count
machines.
</p>
</dd>
</dl><!-- sync -->
<dl id="testing"><dt><a href="/pkg/testing/">testing</a></dt>
<dd>
<p><!-- CL 201359 -->
The testing package now supports cleanup functions, called after
a test or benchmark has finished, by calling
<a href="/pkg/testing#T.Cleanup"><code>T.Cleanup</code></a> or
<a href="/pkg/testing#B.Cleanup"><code>B.Cleanup</code></a> respectively.
</p>
</dd>
</dl><!-- testing -->
<dl id="text/template"><dt><a href="/pkg/text/template/">text/template</a></dt>
<dd>
<p><!-- CL 206124 -->
The text/template package now correctly reports errors when a
parenthesized argument is used as a function.
This most commonly shows up in erroneous cases like
<code>{{if (eq .F "a") or (eq .F "b")}}</code>.
This should be written as <code>{{if or (eq .F "a") (eq .F "b")}}</code>.
The erroneous case never worked as expected, and will now be
reported with an error <code>can't give argument to non-function</code>.
</p>
</dd>
</dl><!-- text/template -->
<dl id="unicode"><dt><a href="/pkg/unicode/">unicode</a></dt>
<dd>
<p>
The <a href="/pkg/unicode/"><code>unicode</code></a> package and associated
support throughout the system has been upgraded from Unicode 11.0 to
<a href="https://www.unicode.org/versions/Unicode12.0.0/">Unicode 12.0</a>,
which adds 554 new characters, including four new scripts, and 61 new emoji.
</p>
</dd>
</dl><!-- unicode -->

File diff suppressed because it is too large Load Diff

View File

@@ -1,191 +0,0 @@
<!--{
"Title": "Go 1.16 Release Notes",
"Path": "/doc/go1.16"
}-->
<!--
NOTE: In this document and others in this directory, the convention is to
set fixed-width phrases with non-fixed-width spaces, as in
<code>hello</code> <code>world</code>.
Do not send CLs removing the interior tags from such phrases.
-->
<style>
main ul li { margin: 0.5em 0; }
</style>
<h2 id="introduction">DRAFT RELEASE NOTES — Introduction to Go 1.16</h2>
<p>
<strong>
Go 1.16 is not yet released. These are work-in-progress
release notes. Go 1.16 is expected to be released in February 2021.
</strong>
</p>
<h2 id="language">Changes to the language</h2>
<p>
TODO
</p>
<h2 id="ports">Ports</h2>
<p>
TODO
</p>
<h2 id="tools">Tools</h2>
<p>
TODO
</p>
<h3 id="go-command">Go command</h3>
<p><!-- golang.org/issue/24031 -->
<code>retract</code> directives may now be used in a <code>go.mod</code> file
to indicate that certain published versions of the module should not be used
by other modules. A module author may retract a version after a severe problem
is discovered or if the version was published unintentionally.<br>
TODO: write and link to section in golang.org/ref/mod<br>
TODO: write and link to tutorial or blog post
</p>
<p><!-- golang.org/issue/29062 -->
When using <code>go test</code>, a test that
calls <code>os.Exit(0)</code> during execution of a test function
will now be considered to fail.
This will help catch cases in which a test calls code that calls
os.Exit(0) and thereby stops running all future tests.
If a <code>TestMain</code> function calls <code>os.Exit(0)</code>
that is still considered to be a passing test.
</p>
<h4 id="all-pattern">The <code>all</code> pattern</h4>
<p><!-- golang.org/cl/240623 -->
When the main module's <code>go.mod</code> file
declares <code>go</code> <code>1.16</code> or higher, the <code>all</code>
package pattern now matches only those packages that are transitively imported
by a package or test found in the main module. (Packages imported by <em>tests
of</em> packages imported by the main module are no longer included.) This is
the same set of packages retained
by <code>go</code> <code>mod</code> <code>vendor</code> since Go 1.11.
</p>
<p>
TODO
</p>
<h2 id="runtime">Runtime</h2>
<p>
TODO
</p>
<h2 id="compiler">Compiler</h2>
<p>
TODO
</p>
<h2 id="linker">Linker</h2>
<p>
This release includes additional improvements to the Go linker,
reducing linker resource usage (both time and memory) and improving
code robustness/maintainability. These changes form the second half
of a two-release project to
<a href="https://golang.org/s/better-linker">modernize the Go
linker</a>.
</p>
<p>
The linker changes in 1.16 extend the 1.15 improvements to all
supported architecture/OS combinations (the 1.15 performance improvements
were primarily focused on <code>ELF</code>-based OSes and
<code>amd64</code> architectures). For a representative set of
large Go programs, linking is 20-35% faster than 1.15 and requires
5-15% less memory on average for <code>linux/amd64</code>, with larger
improvements for other architectures and OSes.
</p>
<p>
TODO: update with final numbers later in the release.
</p>
<h2 id="library">Core library</h2>
<p>
TODO
</p>
<h3 id="net"><a href="/pkg/net/">net</a></h3>
<p><!-- CL 250357 -->
The case of I/O on a closed network connection, or I/O on a network
connection that is closed before any of the I/O completes, can now
be detected using the new <a href="/pkg/net/#ErrClosed">ErrClosed</a> error.
A typical use would be <code>errors.Is(err, net.ErrClosed)</code>.
In earlier releases the only way to reliably detect this case was to
match the string returned by the <code>Error</code> method
with <code>"use of closed network connection"</code>.
</p>
<h3 id="text/template/parse"><a href="/pkg/text/template/parse/">text/template/parse</a></h3>
<p><!-- CL 229398, golang.org/issue/34652 -->
A new <a href="/pkg/text/template/parse/#CommentNode"><code>CommentNode</code></a>
was added to the parse tree. The <a href="/pkg/text/template/parse/#Mode"><code>Mode</code></a>
field in the <code>parse.Tree</code> enables access to it.
</p>
<!-- text/template/parse -->
<h3 id="unicode"><a href="/pkg/unicode/">unicode</a></h3>
<p><!-- CL 248765 -->
The <a href="/pkg/unicode/"><code>unicode</code></a> package and associated
support throughout the system has been upgraded from Unicode 12.0.0 to
<a href="https://www.unicode.org/versions/Unicode13.0.0/">Unicode 13.0.0</a>,
which adds 5,930 new characters, including four new scripts, and 55 new emoji.
Unicode 13.0.0 also designates plane 3 (U+30000-U+3FFFF) as the tertiary
ideographic plane.
</p>
<h3 id="minor_library_changes">Minor changes to the library</h3>
<p>
As always, there are various minor changes and updates to the library,
made with the Go 1 <a href="/doc/go1compat">promise of compatibility</a>
in mind.
</p>
<p>
TODO
</p>
<dl id="net/http"><dt><a href="/pkg/net/http/">net/http</a></dt>
<dd>
<p><!-- CL 233637 -->
In the <a href="/pkg/net/http/"><code>net/http</code></a> package, the
behavior of <a href="/pkg/net/http/#StripPrefix"><code>StripPrefix</code></a>
has been changed to strip the prefix from the request URL's
<code>RawPath</code> field in addition to its <code>Path</code> field.
In past releases, only the <code>Path</code> field was trimmed, and so if the
request URL contained any escaped characters the URL would be modified to
have mismatched <code>Path</code> and <code>RawPath</code> fields.
In Go 1.16, <code>StripPrefix</code> trims both fields.
If there are escaped characters in the prefix part of the request URL the
handler serves a 404 instead of its previous behavior of invoking the
underlying handler with a mismatched <code>Path</code>/<code>RawPath</code> pair.
</p>
<p><!-- CL 252497 -->
The <a href="/pkg/net/http/"><code>net/http</code></a> package now rejects HTTP range requests
of the form <code>"Range": "bytes=--N"</code> where <code>"-N"</code> is a negative suffix length, for
example <code>"Range": "bytes=--2"</code>. It now replies with a <code>416 "Range Not Satisfiable"</code> response.
</p>
</dd>
</dl><!-- net/http -->

View File

@@ -266,7 +266,7 @@ is now an error.
<p>
On the ARM, the toolchain supports "external linking", which
is a step towards being able to build shared libraries with the gc
toolchain and to provide dynamic linking support for environments
tool chain and to provide dynamic linking support for environments
in which that is necessary.
</p>
@@ -860,13 +860,13 @@ The new build tag <code>netgo</code> (off by default) allows the construction of
The <a href="/pkg/net/"><code>net</code></a> package adds a new field
<code>DualStack</code> to the <a href="/pkg/net/#Dialer"><code>Dialer</code></a>
struct for TCP connection setup using a dual IP stack as described in
<a href="https://tools.ietf.org/html/rfc6555">RFC 6555</a>.
<a href="http://tools.ietf.org/html/rfc6555">RFC 6555</a>.
</li>
<li>
The <a href="/pkg/net/http/"><code>net/http</code></a> package will no longer
transmit cookies that are incorrect according to
<a href="https://tools.ietf.org/html/rfc6265">RFC 6265</a>.
<a href="http://tools.ietf.org/html/rfc6265">RFC 6265</a>.
It just logs an error and sends nothing.
Also,
the <a href="/pkg/net/http/"><code>net/http</code></a> package's

View File

@@ -11,7 +11,7 @@ The latest Go release, version 1.3, arrives six months after 1.2,
and contains no language changes.
It focuses primarily on implementation work, providing
precise garbage collection,
a major refactoring of the compiler toolchain that results in
a major refactoring of the compiler tool chain that results in
faster builds, especially for large projects,
significant performance improvements across the board,
and support for DragonFly BSD, Solaris, Plan 9 and Google's Native Client architecture (NaCl).
@@ -285,7 +285,7 @@ building and linking with a shared library.
<h3 id="gc_flag">Command-line flag parsing</h3>
<p>
In the gc toolchain, the assemblers now use the
In the gc tool chain, the assemblers now use the
same command-line flag parsing rules as the Go flag package, a departure
from the traditional Unix flag parsing.
This may affect scripts that invoke the tool directly.
@@ -373,7 +373,7 @@ which can be useful information when debugging deadlocks or performance issues.
<p>
A new package <a href="/pkg/debug/plan9obj/"><code>debug/plan9obj</code></a> was added to the standard library.
It implements access to Plan 9 <a href="https://9p.io/magic/man2html/6/a.out">a.out</a> object files.
It implements access to Plan 9 <a href="http://plan9.bell-labs.com/magic/man2html/6/a.out">a.out</a> object files.
</p>
<h3 id="major_library_changes">Major changes to the library</h3>
@@ -525,7 +525,7 @@ client.
The <a href="/pkg/net/http/"><code>net/http</code></a> package's
<a href="/pkg/net/http/#Request.ParseMultipartForm"><code>Request.ParseMultipartForm</code></a>
method will now return an error if the body's <code>Content-Type</code>
is not <code>multipart/form-data</code>.
is not <code>mutipart/form-data</code>.
Prior to Go 1.3 it would silently fail and return <code>nil</code>.
Code that relies on the previous behavior should be updated.
</li>

View File

@@ -420,7 +420,7 @@ to automate the running of tools to generate source code before compilation.
For example, it can be used to run the <a href="/cmd/yacc"><code>yacc</code></a>
compiler-compiler on a <code>.y</code> file to produce the Go source file implementing the grammar,
or to automate the generation of <code>String</code> methods for typed constants using the new
<a href="https://godoc.org/golang.org/x/tools/cmd/stringer">stringer</a>
<a href="http://godoc.org/golang.org/x/tools/cmd/stringer">stringer</a>
tool in the <code>golang.org/x/tools</code> subrepository.
</p>
@@ -619,9 +619,9 @@ has been created to serve as the location for new developments to support system
calls on all kernels.
It has a nicer structure, with three packages that each hold the implementation of
system calls for one of
<a href="https://godoc.org/golang.org/x/sys/unix">Unix</a>,
<a href="https://godoc.org/golang.org/x/sys/windows">Windows</a> and
<a href="https://godoc.org/golang.org/x/sys/plan9">Plan 9</a>.
<a href="http://godoc.org/golang.org/x/sys/unix">Unix</a>,
<a href="http://godoc.org/golang.org/x/sys/windows">Windows</a> and
<a href="http://godoc.org/golang.org/x/sys/plan9">Plan 9</a>.
These packages will be curated more generously, accepting all reasonable changes
that reflect kernel interfaces in those operating systems.
See the documentation and the article mentioned above for more information.
@@ -670,7 +670,7 @@ The <a href="/pkg/crypto/"><code>crypto</code></a> package now has a
<li>
The <a href="/pkg/crypto/tls/"><code>crypto/tls</code></a> package
now supports ALPN as defined in <a href="https://tools.ietf.org/html/rfc7301">RFC 7301</a>.
now supports ALPN as defined in <a href="http://tools.ietf.org/html/rfc7301">RFC 7301</a>.
</li>
<li>

View File

@@ -10,7 +10,7 @@ Edit .,s;^([a-z][A-Za-z0-9_/]+)\.([A-Z][A-Za-z0-9_]+\.)?([A-Z][A-Za-z0-9_]+)([ .
-->
<style>
main ul li { margin: 0.5em 0; }
ul li { margin: 0.5em 0; }
</style>
<h2 id="introduction">Introduction to Go 1.6</h2>
@@ -116,7 +116,7 @@ instead of generated from <a href="/cmd/yacc/">yacc</a>.
<p>
The compiler, linker, and <code>go</code> command have a new flag <code>-msan</code>,
analogous to <code>-race</code> and only available on linux/amd64,
that enables interoperation with the <a href="https://clang.llvm.org/docs/MemorySanitizer.html">Clang MemorySanitizer</a>.
that enables interoperation with the <a href="http://clang.llvm.org/docs/MemorySanitizer.html">Clang MemorySanitizer</a>.
Such interoperation is useful mainly for testing a program containing suspect C or C++ code.
</p>

View File

@@ -22,7 +22,7 @@ Do not send CLs removing the interior tags from such phrases.
-->
<style>
main ul li { margin: 0.5em 0; }
ul li { margin: 0.5em 0; }
</style>
<h2 id="introduction">Introduction to Go 1.7</h2>
@@ -89,7 +89,7 @@ POWER5 architecture.
</p>
<p>
The OpenBSD port now requires OpenBSD 5.6 or later, for access to the <a href="https://man.openbsd.org/getentropy.2"><i>getentropy</i>(2)</a> system call.
The OpenBSD port now requires OpenBSD 5.6 or later, for access to the <a href="http://man.openbsd.org/getentropy.2"><i>getentropy</i>(2)</a> system call.
</p>
<h3 id="known_issues">Known Issues</h3>

View File

@@ -12,7 +12,7 @@ Do not send CLs removing the interior tags from such phrases.
-->
<style>
main ul li { margin: 0.5em 0; }
ul li { margin: 0.5em 0; }
</style>
<h2 id="introduction">Introduction to Go 1.8</h2>

View File

@@ -12,7 +12,7 @@ Do not send CLs removing the interior tags from such phrases.
-->
<style>
main ul li { margin: 0.5em 0; }
ul li { margin: 0.5em 0; }
</style>
<h2 id="introduction">Introduction to Go 1.9</h2>
@@ -719,11 +719,6 @@ version of gccgo.
header when matching handlers. The host is matched unmodified for <code>CONNECT</code> requests.
</li>
<li><!-- CL 44074 -->
The new <a href="/pkg/net/http/#Server.ServeTLS"><code>Server.ServeTLS</code></a> method wraps
<a href="/pkg/net/http/#Server.Serve"><code>Server.Serve</code></a> with added TLS support.
</li>
<li><!-- CL 34727 -->
<a href="/pkg/net/http/#Server.WriteTimeout"><code>Server.WriteTimeout</code></a>
now applies to HTTP/2 connections and is enforced per-stream.
@@ -862,7 +857,7 @@ version of gccgo.
</dl><!-- reflect -->
<dl id="pkg-runtime"><dt><a href="/pkg/runtime/">runtime</a></dt>
<dl id="runtime"><dt><a href="/pkg/runtime/">runtime</a></dt>
<dd>
<p><!-- CL 37233, CL 37726 -->
Tracebacks generated by the runtime and recorded in profiles are

View File

@@ -190,8 +190,8 @@ For details and background, see
<h2 id="tools">Tools</h2>
<p>
Finally, the Go toolchain (compilers, linkers, build tools, and so
on) is under active development and may change behavior. This
Finally, the Go tool chain (compilers, linkers, build tools, and so
on) are under active development and may change behavior. This
means, for instance, that scripts that depend on the location and
properties of the tools may be broken by a point release.
</p>

File diff suppressed because it is too large Load Diff

View File

@@ -273,7 +273,9 @@ func f() {
a = "hello, world"
&lt;-c
}
</pre>
<pre>
func main() {
go f()
c &lt;- 0
@@ -416,12 +418,8 @@ func twoprint() {
</pre>
<p>
calling <code>twoprint</code> will call <code>setup</code> exactly
once.
The <code>setup</code> function will complete before either call
of <code>print</code>.
The result will be that <code>"hello, world"</code> will be printed
twice.
calling <code>twoprint</code> causes <code>"hello, world"</code> to be printed twice.
The first call to <code>doprint</code> runs <code>setup</code> once.
</p>
<h2>Incorrect synchronization</h2>

File diff suppressed because it is too large Load Diff

Binary file not shown.

Before

Width:  |  Height:  |  Size: 84 KiB

View File

@@ -8,7 +8,7 @@
<h2 id="help">Get help</h2>
<img class="gopher" src="/doc/gopher/help.png" alt=""/>
<img class="gopher" src="/doc/gopher/help.png"/>
{{if not $.GoogleCN}}
<h3 id="mailinglist"><a href="https://groups.google.com/group/golang-nuts">Go Nuts Mailing List</a></h3>
@@ -27,11 +27,6 @@ The <a href="https://forum.golangbridge.org/">Go Forum</a> is a discussion
forum for Go programmers.
</p>
<h3 id="discord"><a href="https://discord.gg/64C346U">Gophers Discord</a></h3>
<p>
Get live support and talk with other gophers on the Go Discord.
</p>
<h3 id="slack"><a href="https://blog.gopheracademy.com/gophers-slack-community/">Gopher Slack</a></h3>
<p>Get live support from other users in the Go slack channel.</p>
@@ -59,6 +54,9 @@ for important announcements, such as the availability of new Go releases.
<h3 id="twitter"><a href="https://twitter.com/golang">@golang at Twitter</a></h3>
<p>The Go project's official Twitter account.</p>
<h3 id="pluscom"><a href="https://plus.google.com/communities/114112804251407510571">Go+ community</a></h3>
<p>A Google+ community for Go enthusiasts.</p>
<h3 id="reddit"><a href="https://reddit.com/r/golang">golang sub-Reddit</a></h3>
<p>
The <a href="https://reddit.com/r/golang">golang sub-Reddit</a> is a place

View File

@@ -24,7 +24,7 @@ packages, though, read on.
<div class="detail">
<p>
There are two official Go compiler toolchains.
There are two official Go compiler tool chains.
This document focuses on the <code>gc</code> Go
compiler and tools.
For information on how to work on <code>gccgo</code>, a more traditional
@@ -33,70 +33,74 @@ compiler using the GCC back end, see
</p>
<p>
The Go compilers support the following instruction sets:
The Go compilers support eight instruction sets.
There are important differences in the quality of the compilers for the different
architectures.
</p>
<dl>
<dt>
<code>amd64</code>, <code>386</code>
<code>amd64</code> (also known as <code>x86-64</code>)
</dt>
<dd>
The <code>x86</code> instruction set, 64- and 32-bit.
A mature implementation.
</dd>
<dt>
<code>arm64</code>, <code>arm</code>
<code>386</code> (<code>x86</code> or <code>x86-32</code>)
</dt>
<dd>
The <code>ARM</code> instruction set, 64-bit (<code>AArch64</code>) and 32-bit.
Comparable to the <code>amd64</code> port.
</dd>
<dt>
<code>mips64</code>, <code>mips64le</code>, <code>mips</code>, <code>mipsle</code>
<code>arm</code> (<code>ARM</code>)
</dt>
<dd>
The <code>MIPS</code> instruction set, big- and little-endian, 64- and 32-bit.
Supports Linux, FreeBSD, NetBSD, OpenBSD and Darwin binaries. Less widely used than the other ports.
</dd>
<dt>
<code>ppc64</code>, <code>ppc64le</code>
<code>arm64</code> (<code>AArch64</code>)
</dt>
<dd>
The 64-bit PowerPC instruction set, big- and little-endian.
Supports Linux and Darwin binaries. New in 1.5 and not as well exercised as other ports.
</dd>
<dt>
<code>riscv64</code>
<code>ppc64, ppc64le</code> (64-bit PowerPC big- and little-endian)
</dt>
<dd>
The 64-bit RISC-V instruction set.
Supports Linux binaries. New in 1.5 and not as well exercised as other ports.
</dd>
<dt>
<code>s390x</code>
<code>mips, mipsle</code> (32-bit MIPS big- and little-endian)
</dt>
<dd>
The IBM z/Architecture.
Supports Linux binaries. New in 1.8 and not as well exercised as other ports.
</dd>
<dt>
<code>wasm</code>
<code>mips64, mips64le</code> (64-bit MIPS big- and little-endian)
</dt>
<dd>
<a href="https://webassembly.org">WebAssembly</a>.
Supports Linux binaries. New in 1.6 and not as well exercised as other ports.
</dd>
<dt>
<code>s390x</code> (IBM System z)
</dt>
<dd>
Supports Linux binaries. New in 1.7 and not as well exercised as other ports.
</dd>
</dl>
<p>
Except for things like low-level operating system interface code, the run-time
support is the same in all ports and includes a mark-and-sweep garbage
collector, efficient array and string slicing, and support for efficient
goroutines, such as stacks that grow and shrink on demand.
</p>
<p>
The compilers can target the AIX, Android, DragonFly BSD, FreeBSD,
Illumos, Linux, macOS/iOS (Darwin), NetBSD, OpenBSD, Plan 9, Solaris,
and Windows operating systems (although not all operating systems
support all architectures).
</p>
<p>
A list of ports which are considered "first class" is available at the
<a href="/wiki/PortingPolicy#first-class-ports">first class ports</a>
wiki page.
</p>
<p>
The full set of supported combinations is listed in the
discussion of <a href="#environment">environment variables</a> below.
The compilers can target the DragonFly BSD, FreeBSD, Linux, NetBSD, OpenBSD,
OS X (Darwin), Plan 9, Solaris and Windows operating systems.
The full set of supported combinations is listed in the discussion of
<a href="#environment">environment variables</a> below.
</p>
<p>
@@ -112,54 +116,44 @@ Go does not support CentOS 6 on these systems.
</div>
<h2 id="go14">Install Go compiler binaries for bootstrap</h2>
<h2 id="go14">Install Go compiler binaries</h2>
<p>
The Go toolchain is written in Go. To build it, you need a Go compiler installed.
The scripts that do the initial build of the tools look for a "go" command
in <code>$PATH</code>, so as long as you have Go installed in your
system and configured in your <code>$PATH</code>, you are ready to build Go
from source.
Or if you prefer you can set <code>$GOROOT_BOOTSTRAP</code> to the
root of a Go installation to use to build the new Go toolchain;
<code>$GOROOT_BOOTSTRAP/bin/go</code> should be the go command to use.</p>
<h3 id="bootstrapFromBinaryRelease">Bootstrap toolchain from binary release</h3>
The Go tool chain is written in Go. To build it, you need a Go compiler installed.
The scripts that do the initial build of the tools look for an existing Go tool
chain in <code>$GOROOT_BOOTSTRAP</code>.
If unset, the default value of <code>GOROOT_BOOTSTRAP</code>
is <code>$HOME/go1.4</code>.
</p>
<p>
To use a binary release as a bootstrap toolchain, see
There are many options for the bootstrap tool chain.
After obtaining one, set <code>GOROOT_BOOTSTRAP</code> to the
directory containing the unpacked tree.
For example, <code>$GOROOT_BOOTSTRAP/bin/go</code> should be
the <code>go</code> command binary for the bootstrap tool chain.
</p>
<p>
To use a binary release as a bootstrap tool chain, see
<a href="/dl/">the downloads page</a> or use any other
packaged Go distribution.
</p>
<h3 id="bootstrapFromSource">Bootstrap toolchain from source</h3>
<p>
To build a bootstrap toolchain from source, use
To build a bootstrap tool chain from source, use
either the git branch <code>release-branch.go1.4</code> or
<a href="https://dl.google.com/go/go1.4-bootstrap-20171003.tar.gz">go1.4-bootstrap-20171003.tar.gz</a>,
<a href="https://storage.googleapis.com/golang/go1.4-bootstrap-20170531.tar.gz">go1.4-bootstrap-20170531.tar.gz</a>,
which contains the Go 1.4 source code plus accumulated fixes
to keep the tools running on newer operating systems.
(Go 1.4 was the last distribution in which the toolchain was written in C.)
(Go 1.4 was the last distribution in which the tool chain was written in C.)
After unpacking the Go 1.4 source, <code>cd</code> to
the <code>src</code> subdirectory, set <code>CGO_ENABLED=0</code> in
the environment, and run <code>make.bash</code> (or,
the <code>src</code> subdirectory and run <code>make.bash</code> (or,
on Windows, <code>make.bat</code>).
</p>
<p>
Once the Go 1.4 source has been unpacked into your GOROOT_BOOTSTRAP directory,
you must keep this git clone instance checked out to branch
<code>release-branch.go1.4</code>. Specifically, do not attempt to reuse
this git clone in the later step named "Fetch the repository." The go1.4
bootstrap toolchain <b>must be able</b> to properly traverse the go1.4 sources
that it assumes are present under this repository root.
</p>
<h3 id="bootstrapFromCrosscompiledSource">Bootstrap toolchain from cross-compiled source</h3>
<p>
To cross-compile a bootstrap toolchain from source, which is
To cross-compile a bootstrap tool chain from source, which is
necessary on systems Go 1.4 did not target (for
example, <code>linux/ppc64le</code>), install Go on a different system
and run <a href="/src/bootstrap.bash">bootstrap.bash</a>.
@@ -180,8 +174,6 @@ That tree can be copied to a machine of the given target type
and used as <code>GOROOT_BOOTSTRAP</code> to bootstrap a local build.
</p>
<h3 id="bootstrapFromGccgo">Bootstrap toolchain using gccgo</h3>
<p>
To use gccgo as the bootstrap toolchain, you need to arrange
for <code>$GOROOT_BOOTSTRAP/bin/go</code> to be the go tool that comes
@@ -204,7 +196,7 @@ have a <code>git</code> command before proceeding.)
<p>
If you do not have a working Git installation,
follow the instructions on the
<a href="https://git-scm.com/downloads">Git downloads</a> page.
<a href="http://git-scm.com/downloads">Git downloads</a> page.
</p>
<h2 id="ccompiler">(Optional) Install a C compiler</h2>
@@ -225,14 +217,15 @@ To build without <code>cgo</code>, set the environment variable
<h2 id="fetch">Fetch the repository</h2>
<p>Change to the directory where you intend to install Go, and make sure
the <code>goroot</code> directory does not exist. Then clone the repository
and check out the latest release tag (<code class="versionTag">go1.12</code>,
for example):</p>
<p>Go will install to a directory named <code>go</code>.
Change to the directory that will be its parent
and make sure the <code>go</code> directory does not exist.
Then clone the repository and check out the latest release tag
(<code class="versionTag">go1.9</code>, for example):</p>
<pre>
$ git clone https://go.googlesource.com/go goroot
$ cd goroot
$ git clone https://go.googlesource.com/go
$ cd go
$ git checkout <span class="versionTag"><i>&lt;tag&gt;</i></span>
</pre>
@@ -240,20 +233,6 @@ $ git checkout <span class="versionTag"><i>&lt;tag&gt;</i></span>
Where <code>&lt;tag&gt;</code> is the version string of the release.
</p>
<p>Go will be installed in the directory where it is checked out. For example,
if Go is checked out in <code>$HOME/goroot</code>, executables will be installed
in <code>$HOME/goroot/bin</code>. The directory may have any name, but note
that if Go is checked out in <code>$HOME/go</code>, it will conflict with
the default location of <code>$GOPATH</code>.
See <a href="#gopath"><code>GOPATH</code></a> below.</p>
<p>
Reminder: If you opted to also compile the bootstrap binaries from source (in an
earlier section), you still need to <code>git clone</code> again at this point
(to checkout the latest <code>&lt;tag&gt;</code>), because you must keep your
go1.4 repository distinct.
</p>
<h2 id="head">(Optional) Switch to the master branch</h2>
<p>If you intend to modify the go source code, and
@@ -327,7 +306,7 @@ package main
import "fmt"
func main() {
fmt.Printf("hello, world\n")
fmt.Printf("hello, world\n")
}
</pre>
@@ -369,7 +348,15 @@ provides <b>essential setup instructions</b> for using the Go tools.
<p>
The source code for several Go tools (including <a href="/cmd/godoc/">godoc</a>)
is kept in <a href="https://golang.org/x/tools">the go.tools repository</a>.
To install one of the tools (<code>godoc</code> in this case):
To install all of them, run the <code>go</code> <code>get</code> command:
</p>
<pre>
$ go get golang.org/x/tools/cmd/...
</pre>
<p>
Or if you just want to install a specific command (<code>godoc</code> in this case):
</p>
<pre>
@@ -386,11 +373,21 @@ You must also have a workspace (<code>GOPATH</code>) set up;
see <a href="/doc/code.html">How to Write Go Code</a> for the details.
</p>
<p>
<b>Note</b>: The <code>go</code> command will install the <code>godoc</code>
binary to <code>$GOROOT/bin</code> (or <code>$GOBIN</code>) and the
<code>cover</code> and <code>vet</code> binaries to
<code>$GOROOT/pkg/tool/$GOOS_$GOARCH</code>.
You can access the latter commands with
"<code>go</code> <code>tool</code> <code>cover</code>" and
"<code>go</code> <code>tool</code> <code>vet</code>".
</p>
<h2 id="community">Community resources</h2>
<p>
The usual community resources such as
<code>#go-nuts</code> on the <a href="https://freenode.net/">Freenode</a> IRC server
<code>#go-nuts</code> on the <a href="http://freenode.net/">Freenode</a> IRC server
and the
<a href="//groups.google.com/group/golang-nuts">Go Nuts</a>
mailing list have active developers that can help you with problems
@@ -448,7 +445,6 @@ defaults to the parent of the directory where <code>all.bash</code> was run.
There is no need to set this unless you want to switch between multiple
local copies of the repository.
</p>
</li>
<li><code>$GOROOT_FINAL</code>
<p>
@@ -459,96 +455,42 @@ If you want to build the Go tree in one location
but move it elsewhere after the build, set
<code>$GOROOT_FINAL</code> to the eventual location.
</p>
</li>
<li id="gopath"><code>$GOPATH</code>
<p>
The directory where Go projects outside the Go distribution are typically
checked out. For example, <code>golang.org/x/tools</code> might be checked out
to <code>$GOPATH/src/golang.org/x/tools</code>. Executables outside the
Go distribution are installed in <code>$GOPATH/bin</code> (or
<code>$GOBIN</code>, if set). Modules are downloaded and cached in
<code>$GOPATH/pkg/mod</code>.
</p>
<p>The default location of <code>$GOPATH</code> is <code>$HOME/go</code>,
and it's not usually necessary to set <code>GOPATH</code> explicitly. However,
if you have checked out the Go distribution to <code>$HOME/go</code>,
you must set <code>GOPATH</code> to another location to avoid conflicts.
</p>
</li>
<li><code>$GOBIN</code>
<p>
The directory where executables outside the Go distribution are installed
using the <a href="/cmd/go">go command</a>. For example,
<code>go get golang.org/x/tools/cmd/godoc</code> downloads, builds, and
installs <code>$GOBIN/godoc</code>. By default, <code>$GOBIN</code> is
<code>$GOPATH/bin</code> (or <code>$HOME/go/bin</code> if <code>GOPATH</code>
is not set). After installing, you will want to add this directory to
your <code>$PATH</code> so you can use installed tools.
</p>
<p>
Note that the Go distribution's executables are installed in
<code>$GOROOT/bin</code> (for executables invoked by people) or
<code>$GOTOOLDIR</code> (for executables invoked by the go command;
defaults to <code>$GOROOT/pkg/$GOOS_GOARCH</code>) instead of
<code>$GOBIN</code>.
</p>
</li>
<li><code>$GOOS</code> and <code>$GOARCH</code>
<p>
The name of the target operating system and compilation architecture.
These default to the values of <code>$GOHOSTOS</code> and
<code>$GOHOSTARCH</code> respectively (described below).
</li>
<p>
Choices for <code>$GOOS</code> are
<code>android</code>, <code>darwin</code> (macOS/iOS),
<code>dragonfly</code>, <code>freebsd</code>, <code>illumos</code>, <code>js</code>,
<code>darwin</code> (Mac OS X 10.8 and above and iOS), <code>dragonfly</code>, <code>freebsd</code>,
<code>linux</code>, <code>netbsd</code>, <code>openbsd</code>,
<code>plan9</code>, <code>solaris</code> and <code>windows</code>.
</p>
<p>
Choices for <code>$GOARCH</code> are
<code>amd64</code> (64-bit x86, the most mature port),
<code>386</code> (32-bit x86), <code>arm</code> (32-bit ARM), <code>arm64</code> (64-bit ARM),
<code>ppc64le</code> (PowerPC 64-bit, little-endian), <code>ppc64</code> (PowerPC 64-bit, big-endian),
<code>mips64le</code> (MIPS 64-bit, little-endian), <code>mips64</code> (MIPS 64-bit, big-endian),
<code>mipsle</code> (MIPS 32-bit, little-endian), <code>mips</code> (MIPS 32-bit, big-endian),
<code>s390x</code> (IBM System z 64-bit, big-endian), and
<code>wasm</code> (WebAssembly 32-bit).
</p>
<p>
<code>mips64le</code> (MIPS 64-bit, little-endian), and <code>mips64</code> (MIPS 64-bit, big-endian).
<code>mipsle</code> (MIPS 32-bit, little-endian), and <code>mips</code> (MIPS 32-bit, big-endian).
The valid combinations of <code>$GOOS</code> and <code>$GOARCH</code> are:
<table cellpadding="0">
<tr>
<th width="50"></th><th align="left" width="100"><code>$GOOS</code></th> <th align="left" width="100"><code>$GOARCH</code></th>
</tr>
<tr>
<td></td><td><code>aix</code></td> <td><code>ppc64</code></td>
</tr>
<tr>
<td></td><td><code>android</code></td> <td><code>386</code></td>
</tr>
<tr>
<td></td><td><code>android</code></td> <td><code>amd64</code></td>
</tr>
<tr>
<td></td><td><code>android</code></td> <td><code>arm</code></td>
</tr>
<tr>
<td></td><td><code>android</code></td> <td><code>arm64</code></td>
<td></td><td><code>darwin</code></td> <td><code>386</code></td>
</tr>
<tr>
<td></td><td><code>darwin</code></td> <td><code>amd64</code></td>
</tr>
<tr>
<td></td><td><code>darwin</code></td> <td><code>arm</code></td>
</tr>
<tr>
<td></td><td><code>darwin</code></td> <td><code>arm64</code></td>
</tr>
<tr>
@@ -564,12 +506,6 @@ The valid combinations of <code>$GOOS</code> and <code>$GOARCH</code> are:
<td></td><td><code>freebsd</code></td> <td><code>arm</code></td>
</tr>
<tr>
<td></td><td><code>illumos</code></td> <td><code>amd64</code></td>
</tr>
<tr>
<td></td><td><code>js</code></td> <td><code>wasm</code></td>
</tr>
<tr>
<td></td><td><code>linux</code></td> <td><code>386</code></td>
</tr>
<tr>
@@ -600,12 +536,6 @@ The valid combinations of <code>$GOOS</code> and <code>$GOARCH</code> are:
<td></td><td><code>linux</code></td> <td><code>mips64le</code></td>
</tr>
<tr>
<td></td><td><code>linux</code></td> <td><code>riscv64</code></td>
</tr>
<tr>
<td></td><td><code>linux</code></td> <td><code>s390x</code></td>
</tr>
<tr>
<td></td><td><code>netbsd</code></td> <td><code>386</code></td>
</tr>
<tr>
@@ -624,18 +554,12 @@ The valid combinations of <code>$GOOS</code> and <code>$GOARCH</code> are:
<td></td><td><code>openbsd</code></td> <td><code>arm</code></td>
</tr>
<tr>
<td></td><td><code>openbsd</code></td> <td><code>arm64</code></td>
</tr>
<tr>
<td></td><td><code>plan9</code></td> <td><code>386</code></td>
</tr>
<tr>
<td></td><td><code>plan9</code></td> <td><code>amd64</code></td>
</tr>
<tr>
<td></td><td><code>plan9</code></td> <td><code>arm</code></td>
</tr>
<tr>
<td></td><td><code>solaris</code></td> <td><code>amd64</code></td>
</tr>
<tr>
@@ -653,7 +577,6 @@ The name of the host operating system and compilation architecture.
These default to the local system's operating system and
architecture.
</p>
</li>
<p>
Valid choices are the same as for <code>$GOOS</code> and
@@ -663,6 +586,16 @@ For example, you should not set <code>$GOHOSTARCH</code> to
<code>arm</code> on an x86 system.
</p>
<li><code>$GOBIN</code>
<p>
The location where Go binaries will be installed.
The default is <code>$GOROOT/bin</code>.
After installing, you will want to arrange to add this
directory to your <code>$PATH</code>, so you can use the tools.
If <code>$GOBIN</code> is set, the <a href="/cmd/go">go command</a>
installs all commands there.
</p>
<li><code>$GO386</code> (for <code>386</code> only, default is auto-detected
if built on either <code>386</code> or <code>amd64</code>, <code>387</code> otherwise)
<p>
@@ -671,10 +604,9 @@ This controls the code generated by gc to use either the 387 floating-point unit
floating point computations.
</p>
<ul>
<li><code>GO386=387</code>: use x87 for floating point operations; should support all x86 chips (Pentium MMX or later).</li>
<li><code>GO386=sse2</code>: use SSE2 for floating point operations; has better performance than 387, but only available on Pentium 4/Opteron/Athlon 64 or later.</li>
<li><code>GO386=387</code>: use x87 for floating point operations; should support all x86 chips (Pentium MMX or later).
<li><code>GO386=sse2</code>: use SSE2 for floating point operations; has better performance than 387, but only available on Pentium 4/Opteron/Athlon 64 or later.
</ul>
</li>
<li><code>$GOARM</code> (for <code>arm</code> only; default is auto-detected if building
on the target processor, 6 if not)
@@ -683,9 +615,9 @@ This sets the ARM floating point co-processor architecture version the run-time
should target. If you are compiling on the target system, its value will be auto-detected.
</p>
<ul>
<li><code>GOARM=5</code>: use software floating point; when CPU doesn't have VFP co-processor</li>
<li><code>GOARM=6</code>: use VFPv1 only; default if cross compiling; usually ARM11 or better cores (VFPv2 or better is also supported)</li>
<li><code>GOARM=7</code>: use VFPv3; usually Cortex-A cores</li>
<li><code>GOARM=5</code>: use software floating point; when CPU doesn't have VFP co-processor
<li><code>GOARM=6</code>: use VFPv1 only; default if cross compiling; usually ARM11 or better cores (VFPv2 or better is also supported)
<li><code>GOARM=7</code>: use VFPv3; usually Cortex-A cores
</ul>
<p>
If in doubt, leave this variable unset, and adjust it if required
@@ -694,36 +626,6 @@ The <a href="//golang.org/wiki/GoArm">GoARM</a> page
on the <a href="//golang.org/wiki">Go community wiki</a>
contains further details regarding Go's ARM support.
</p>
</li>
<li><code>$GOMIPS</code> (for <code>mips</code> and <code>mipsle</code> only) <br> <code>$GOMIPS64</code> (for <code>mips64</code> and <code>mips64le</code> only)
<p>
These variables set whether to use floating point instructions. Set to "<code>hardfloat</code>" to use floating point instructions; this is the default. Set to "<code>softfloat</code>" to use soft floating point.
</p>
</li>
<li><code>$GOPPC64</code> (for <code>ppc64</code> and <code>ppc64le</code> only)
<p>
This variable sets the processor level (i.e. Instruction Set Architecture version)
for which the compiler will target. The default is <code>power8</code>.
</p>
<ul>
<li><code>GOPPC64=power8</code>: generate ISA v2.07 instructions</li>
<li><code>GOPPC64=power9</code>: generate ISA v3.00 instructions</li>
</ul>
</li>
<li><code>$GOWASM</code> (for <code>wasm</code> only)
<p>
This variable is a comma separated list of <a href="https://github.com/WebAssembly/proposals">experimental WebAssembly features</a> that the compiled WebAssembly binary is allowed to use.
The default is to use no experimental features.
</p>
<ul>
<li><code>GOWASM=satconv</code>: generate <a href="https://github.com/WebAssembly/nontrapping-float-to-int-conversions/blob/master/proposals/nontrapping-float-to-int-conversion/Overview.md">saturating (non-trapping) float-to-int conversions</a></li>
<li><code>GOWASM=signext</code>: generate <a href="https://github.com/WebAssembly/sign-extension-ops/blob/master/proposals/sign-extension-ops/Overview.md">sign-extension operators</a></li>
</ul>
</li>
</ul>
@@ -746,6 +648,7 @@ something like this:
</p>
<pre>
export GOROOT=$HOME/go1.X
export GOARCH=amd64
export GOOS=linux
</pre>

View File

@@ -16,8 +16,8 @@
<p>
<a href="/dl/" target="_blank">Official binary
distributions</a> are available for the FreeBSD (release 10-STABLE and above),
Linux, macOS (10.11 and above), and Windows operating systems and
distributions</a> are available for the FreeBSD (release 8-STABLE and above),
Linux, Mac OS X (10.8 and above), and Windows operating systems and
the 32-bit (<code>386</code>) and 64-bit (<code>amd64</code>) x86 processor
architectures.
</p>
@@ -47,17 +47,17 @@ If your OS or architecture is not on the list, you may be able to
<th align="center">Notes</th>
</tr>
<tr><td colspan="3"><hr></td></tr>
<tr><td>FreeBSD 10.3 or later</td> <td>amd64, 386</td> <td>Debian GNU/kFreeBSD not supported</td></tr>
<tr><td>FreeBSD 9.3 or later</td> <td>amd64, 386</td> <td>Debian GNU/kFreeBSD not supported</td></tr>
<tr valign='top'><td>Linux 2.6.23 or later with glibc</td> <td>amd64, 386, arm, arm64,<br>s390x, ppc64le</td> <td>CentOS/RHEL 5.x not supported.<br>Install from source for other libc.</td></tr>
<tr><td>macOS 10.11 or later</td> <td>amd64</td> <td>use the clang or gcc<sup>&#8224;</sup> that comes with Xcode<sup>&#8225;</sup> for <code>cgo</code> support</td></tr>
<tr valign='top'><td>Windows 7, Server 2008R2 or later</td> <td>amd64, 386</td> <td>use MinGW (<code>386</code>) or MinGW-W64 (<code>amd64</code>) gcc<sup>&#8224;</sup>.<br>No need for cygwin or msys.</td></tr>
<tr><td>macOS 10.8 or later</td> <td>amd64</td> <td>use the clang or gcc<sup>&#8224;</sup> that comes with Xcode<sup>&#8225;</sup> for <code>cgo</code> support</td></tr>
<tr><td>Windows XP SP2 or later</td> <td>amd64, 386</td> <td>use MinGW gcc<sup>&#8224;</sup>. No need for cygwin or msys.</td></tr>
</table>
<p>
<sup>&#8224;</sup>A C compiler is required only if you plan to use
<a href="/cmd/cgo">cgo</a>.<br/>
<sup>&#8225;</sup>You only need to install the command line tools for
<a href="https://developer.apple.com/Xcode/">Xcode</a>. If you have already
<a href="http://developer.apple.com/Xcode/">Xcode</a>. If you have already
installed Xcode 4.3+, you can install it from the Components tab of the
Downloads preferences panel.
</p>
@@ -74,7 +74,7 @@ first <a href="#uninstall">remove the existing version</a>.
<div id="tarballInstructions">
<h3 id="tarball">Linux, macOS, and FreeBSD tarballs</h3>
<h3 id="tarball">Linux, Mac OS X, and FreeBSD tarballs</h3>
<p>
<a href="/dl/">Download the archive</a>
@@ -106,19 +106,36 @@ variable. You can do this by adding this line to your <code>/etc/profile</code>
export PATH=$PATH:/usr/local/go/bin
</pre>
<h4 id="tarball_non_standard">Installing to a custom location</h4>
<p>
<b>Note</b>: changes made to a <code>profile</code> file may not apply until the
next time you log into your computer.
To apply the changes immediately, just run the shell commands directly
or execute them from the profile using a command such as
<code>source $HOME/.profile</code>.
The Go binary distributions assume they will be installed in
<code>/usr/local/go</code> (or <code>c:\Go</code> under Windows),
but it is possible to install the Go tools to a different location.
In this case you must set the <code>GOROOT</code> environment variable
to point to the directory in which it was installed.
</p>
<p>
For example, if you installed Go to your home directory you should add
commands like the following to <code>$HOME/.profile</code>:
</p>
<pre>
export GOROOT=$HOME/go1.X
export PATH=$PATH:$GOROOT/bin
</pre>
<p>
<b>Note</b>: <code>GOROOT</code> must be set only when installing to a custom
location.
</p>
</div><!-- tarballInstructions -->
<div id="darwinPackageInstructions">
<h3 id="macos"><div id="osx"></div>macOS package installer</h3>
<h3 id="osx">Mac OS X package installer</h3>
<p>
<a href="/dl/">Download the package file</a>,
@@ -171,6 +188,11 @@ command prompts for the change to take effect.
<a href="/dl/">Download the zip file</a> and extract it into the directory of your choice (we suggest <code>c:\Go</code>).
</p>
<p>
If you chose a directory other than <code>c:\Go</code>,
you must set the <code>GOROOT</code> environment variable to your chosen path.
</p>
<p>
Add the <code>bin</code> subdirectory of your Go root (for example, <code>c:\Go\bin</code>) to your <code>PATH</code> environment variable.
</p>
@@ -192,11 +214,20 @@ Settings" option inside the "System" control panel.
<h2 id="testing">Test your installation</h2>
<p>
Check that Go is installed correctly by building a simple program, as follows.
Check that Go is installed correctly by setting up a workspace
and building a simple program, as follows.
</p>
<p>
Create a file named <code>hello.go</code> that looks like:
Create your <a href="code.html#Workspaces">workspace</a> directory,
<code class="testUnix">$HOME/go</code><code class="testWindows">%USERPROFILE%\go</code>.
(If you'd like to use a different directory,
you will need to <a href="https://golang.org/wiki/SettingGOPATH">set the <code>GOPATH</code> environment variable</a>.)
</p>
<p>
Next, make the directory <code>src/hello</code> inside your workspace,
and in that directory create a file named <code>hello.go</code> that looks like:
</p>
<pre>
@@ -205,7 +236,7 @@ package main
import "fmt"
func main() {
fmt.Printf("hello, world\n")
fmt.Printf("hello, world\n")
}
</pre>
@@ -214,17 +245,19 @@ Then build it with the <code>go</code> tool:
</p>
<pre class="testUnix">
$ <b>go build hello.go</b>
$ <b>cd $HOME/go/src/hello</b>
$ <b>go build</b>
</pre>
<pre class="testWindows">
C:\Users\Gopher\go\src\hello&gt; <b>go build hello.go</b>
C:\&gt; <b>cd %USERPROFILE%\go\src\hello</b>
C:\Users\Gopher\go\src\hello&gt; <b>go build</b>
</pre>
<p>
The command above will build an executable named
<code class="testUnix">hello</code><code class="testWindows">hello.exe</code>
in the current directory alongside your source code.
in the directory alongside your source code.
Execute it to see the greeting:
</p>
@@ -242,6 +275,12 @@ hello, world
If you see the "hello, world" message then your Go installation is working.
</p>
<p>
You can run <code>go</code> <code>install</code> to install the binary into
your workspace's <code>bin</code> directory
or <code>go</code> <code>clean</code> to remove it.
</p>
<p>
Before rushing off to write Go code please read the
<a href="/doc/code.html">How to Write Go Code</a> document,
@@ -249,45 +288,12 @@ which describes some essential concepts about using the Go tools.
</p>
<h2 id="extra_versions">Installing extra Go versions</h2>
<p>
It may be useful to have multiple Go versions installed on the same machine, for
example, to ensure that a package's tests pass on multiple Go versions.
Once you have one Go version installed, you can install another (such as 1.10.7)
as follows:
</p>
<pre>
$ go get golang.org/dl/go1.10.7
$ go1.10.7 download
</pre>
<p>
The newly downloaded version can be used like <code>go</code>:
</p>
<pre>
$ go1.10.7 version
go version go1.10.7 linux/amd64
</pre>
<p>
All Go versions available via this method are listed on
<a href="https://godoc.org/golang.org/dl#pkg-subdirectories">the download page</a>.
You can find where each of these extra Go versions is installed by looking
at its <code>GOROOT</code>; for example, <code>go1.10.7 env GOROOT</code>.
To uninstall a downloaded version, just remove its <code>GOROOT</code> directory
and the <code>goX.Y.Z</code> binary.
</p>
<h2 id="uninstall">Uninstalling Go</h2>
<p>
To remove an existing Go installation from your system delete the
<code>go</code> directory. This is usually <code>/usr/local/go</code>
under Linux, macOS, and FreeBSD or <code>c:\Go</code>
under Linux, Mac OS X, and FreeBSD or <code>c:\Go</code>
under Windows.
</p>
@@ -296,7 +302,7 @@ You should also remove the Go <code>bin</code> directory from your
<code>PATH</code> environment variable.
Under Linux and FreeBSD you should edit <code>/etc/profile</code> or
<code>$HOME/.profile</code>.
If you installed Go with the <a href="#macos">macOS package</a> then you
If you installed Go with the <a href="#osx">Mac OS X package</a> then you
should remove the <code>/etc/paths.d/go</code> file.
Windows users should read the section about <a href="#windows_env">setting
environment variables under Windows</a>.

View File

@@ -1,5 +1,3 @@
// You can edit this code!
// Click here and start typing.
package main
import "fmt"

View File

@@ -41,9 +41,9 @@ const templateStr = `
<br>
<br>
{{end}}
<form action="/" name=f method="GET">
<input maxLength=1024 size=70 name=s value="" title="Text to QR Encode">
<input type=submit value="Show QR" name=qr>
<form action="/" name=f method="GET"><input maxLength=1024 size=70
name=s value="" title="Text to QR Encode"><input type=submit
value="Show QR" name=qr>
</form>
</body>
</html>

View File

@@ -28,18 +28,11 @@ func (s Sequence) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}
// Copy returns a copy of the Sequence.
func (s Sequence) Copy() Sequence {
copy := make(Sequence, 0, len(s))
return append(copy, s...)
}
// Method for printing - sorts the elements before printing.
func (s Sequence) String() string {
s = s.Copy() // Make a copy; don't overwrite argument.
sort.Sort(s)
str := "["
for i, elem := range s { // Loop is O(N²); will fix that in next example.
for i, elem := range s {
if i > 0 {
str += " "
}

View File

@@ -20,11 +20,11 @@ func viewRecord(w http.ResponseWriter, r *http.Request) {
key := datastore.NewKey(c, "Record", r.FormValue("id"), 0, nil)
record := new(Record)
if err := datastore.Get(c, key, record); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
http.Error(w, err.Error(), 500)
return
}
if err := viewTemplate.Execute(w, record); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
http.Error(w, err.Error(), 500)
}
}

View File

@@ -33,7 +33,7 @@ type appHandler func(http.ResponseWriter, *http.Request) error
func (fn appHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if err := fn(w, r); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
http.Error(w, err.Error(), 500)
}
}

View File

@@ -16,7 +16,6 @@ import (
"regexp"
"runtime"
"strings"
"time"
)
const usage = `go run run.go [tests]
@@ -27,8 +26,6 @@ Tests may be specified without their .go suffix.
`
func main() {
start := time.Now()
flag.Usage = func() {
fmt.Fprintf(os.Stderr, usage)
flag.PrintDefaults()
@@ -73,9 +70,6 @@ func main() {
}
}
os.Remove(tmpdir)
if rc == 0 {
fmt.Printf("ok\t%s\t%s\n", filepath.Base(os.Args[0]), time.Since(start).Round(time.Millisecond))
}
os.Exit(rc)
}
@@ -84,7 +78,7 @@ func main() {
// and checks that the output matches the regexp want.
func test(tmpdir, file, want string) error {
// Build the program.
prog := filepath.Join(tmpdir, file+".exe")
prog := filepath.Join(tmpdir, file)
cmd := exec.Command("go", "build", "-o", prog, file+".go")
out, err := cmd.CombinedOutput()
if err != nil {
@@ -105,7 +99,7 @@ func test(tmpdir, file, want string) error {
// Canonicalize output.
out = bytes.TrimRight(out, "\n")
out = bytes.ReplaceAll(out, []byte{'\n'}, []byte{' '})
out = bytes.Replace(out, []byte{'\n'}, []byte{' '}, -1)
// Check the result.
match, err := regexp.Match(want, out)
@@ -225,5 +219,12 @@ func fixcgo() {
// cgo1 and cgo2 don't run on netbsd, srandom has a different signature
skipTest("cgo1")
skipTest("cgo2")
// cgo3 and cgo4 don't run on netbsd, since cgo cannot handle stdout correctly, see issue #10715.
skipTest("cgo3")
skipTest("cgo4")
case "openbsd", "solaris":
// cgo3 and cgo4 don't run on openbsd and solaris, since cgo cannot handle stdout correctly, see issue #10715.
skipTest("cgo3")
skipTest("cgo4")
}
}

160
doc/root.html Normal file
View File

@@ -0,0 +1,160 @@
<!--{
"Path": "/",
"Template": true
}-->
<div class="left">
<div id="learn">
{{if not $.GoogleCN}}
<a class="popout share">Pop-out</a>
{{end}}
<div class="rootHeading">Try Go</div>
<div class="input">
<textarea spellcheck="false" class="code">// You can edit this code!
// Click here and start typing.
package main
import "fmt"
func main() {
fmt.Println("Hello, 世界")
}</textarea>
</div>
<div class="output">
<pre>
Hello, 世界
</pre>
</div>
<div class="buttons">
<a class="run" href="#" title="Run this code [shift-enter]">Run</a>
{{if not $.GoogleCN}}
<a class="share" href="#" title="Share this code">Share</a>
<a class="tour" href="//tour.golang.org/" title="Learn Go from your browser">Tour</a>
{{end}}
</div>
<div class="toys">
<select>
<option value="hello.go">Hello, World!</option>
<option value="life.go">Conway's Game of Life</option>
<option value="fib.go">Fibonacci Closure</option>
<option value="peano.go">Peano Integers</option>
<option value="pi.go">Concurrent pi</option>
<option value="sieve.go">Concurrent Prime Sieve</option>
<option value="solitaire.go">Peg Solitaire Solver</option>
<option value="tree.go">Tree Comparison</option>
</select>
</div>
</div>
</div>
<div class="right">
<div id="about">
Go is an open source programming language that makes it easy to build
simple, reliable, and efficient software.
</div>
<div id="gopher"></div>
<a href="/dl/" id="start">
<span class="big">Download Go</span>
<span class="desc">
Binary distributions available for<br>
Linux, Mac OS X, Windows, and more.
</span>
</a>
</div>
<div style="clear: both"></div>
{{if not $.GoogleCN}}
<div class="left">
<div id="video">
<div class="rootHeading">Featured video</div>
<iframe width="415" height="241" src="//www.youtube.com/embed/ytEkHepK08c" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="right">
<div id="blog">
<div class="rootHeading">Featured articles</div>
<div class="read"><a href="//blog.golang.org/">Read more</a></div>
</div>
</div>
{{end}}
<div style="clear: both;"></div>
<script>
(function() {
'use strict';
window.initFuncs.push(function() {
// Set up playground if enabled.
if (window.playground) {
window.playground({
"codeEl": "#learn .code",
"outputEl": "#learn .output",
"runEl": "#learn .run",
"shareEl": "#learn .share",
"shareRedirect": "//play.golang.org/p/",
"toysEl": "#learn .toys select"
});
} else {
$('#learn').hide()
}
});
{{if not $.GoogleCN}}
function readableTime(t) {
var m = ["January", "February", "March", "April", "May", "June", "July",
"August", "September", "October", "November", "December"];
var p = t.substring(0, t.indexOf("T")).split("-");
var d = new Date(p[0], p[1]-1, p[2]);
return d.getDate() + " " + m[d.getMonth()] + " " + d.getFullYear();
}
window.feedLoaded = function(result) {
var blog = document.getElementById("blog");
var read = blog.getElementsByClassName("read")[0];
for (var i = 0; i < result.length && i < 2; i++) {
var entry = result[i];
var title = document.createElement("a");
title.className = "title";
title.href = entry.Link;
title.innerHTML = entry.Title;
blog.insertBefore(title, read);
var extract = document.createElement("div");
extract.className = "extract";
extract.innerHTML = entry.Summary;
blog.insertBefore(extract, read);
var when = document.createElement("div");
when.className = "when";
when.innerHTML = "Published " + readableTime(entry.Time);
blog.insertBefore(when, read);
}
}
window.initFuncs.push(function() {
// Load blog feed.
$('<script/>').attr('text', 'text/javascript')
.attr('src', '//blog.golang.org/.json?jsonp=feedLoaded')
.appendTo('body');
// Set the video at random.
var videos = [
{h: 241, s: "//www.youtube.com/embed/ytEkHepK08c"}, // Tour of Go
{h: 241, s: "//www.youtube.com/embed/f6kdp27TYZs"}, // Concurrency Patterns
{h: 233, s: "//player.vimeo.com/video/69237265"} // Simple environment
];
var v = videos[Math.floor(Math.random()*videos.length)];
$('#video iframe').attr('height', v.h).attr('src', v.s);
});
{{end}}
})();
</script>

180
doc/security.html Normal file
View File

@@ -0,0 +1,180 @@
<!--{
"Title": "Go Security Policy",
"Path": "/security",
"Template": true
}-->
<h2>Implementation</h2>
<h3>Reporting a Security Bug</h3>
<p>
Please report to us any issues you find.
This document explains how to do that and what to expect in return.
</p>
<p>
All security bugs in the Go distribution should be reported by email to
<a href="mailto:security@golang.org">security@golang.org</a>.
This mail is delivered to a small security team.
Your email will be acknowledged within 24 hours, and you'll receive a more
detailed response to your email within 72 hours indicating the next steps in
handling your report.
For critical problems, you can encrypt your report using our PGP key (listed below).
</p>
<p>
Please use a descriptive subject line for your report email.
After the initial reply to your report, the security team will endeavor to keep
you informed of the progress being made towards a fix and full announcement.
These updates will be sent at least every five days.
In reality, this is more likely to be every 24-48 hours.
</p>
<p>
If you have not received a reply to your email within 48 hours or you have not
heard from the security team for the past five days please contact the Go
security team directly:
</p>
<ul>
<li>Primary security coordinator: <a href="mailto:adg@golang.org">Andrew Gerrand</a> (<a href="https://drive.google.com/a/google.com/file/d/0B42ZAZN5yFufRldybEVNandRN2c/view">public key</a>).</li>
<li>Secondary coordinator: <a href="mailto:agl@golang.org">Adam Langley</a> (<a href="https://www.imperialviolet.org/key.asc">public key</a>).</li>
<li>If you receive no response, mail <a href="mailto:golang-dev@googlegroups.com">golang-dev@googlegroups.com</a> or use the <a href="https://groups.google.com/forum/#!forum/golang-dev">golang-dev web interface</a>.</li>
</ul>
<p>
Please note that golang-dev is a public discussion forum.
When escalating on this list, please do not disclose the details of the issue.
Simply state that you're trying to reach a member of the security team.
</p>
<h3>Flagging Existing Issues as Security-related</h3>
<p>
If you believe that an <a href="https://golang.org/issue">existing issue</a>
is security-related, we ask that you send an email to
<a href="mailto:security@golang.org">security@golang.org</a>.
The email should include the issue ID and a short description of why it should
be handled according to this security policy.
</p>
<h3>Disclosure Process</h3>
<p>The Go project uses the following disclosure process:</p>
<ol>
<li>Once the security report is received it is assigned a primary handler.
This person coordinates the fix and release process.</li>
<li>The issue is confirmed and a list of affected software is determined.</li>
<li>Code is audited to find any potential similar problems.</li>
<li>If it is determined, in consultation with the submitter, that a CVE-ID is
required, the primary handler obtains one via email to
<a href="http://oss-security.openwall.org/wiki/mailing-lists/distros">oss-distros</a>.</li>
<li>Fixes are prepared for the two most recent major releases and the head/master
revision. These fixes are not yet committed to the public repository.</li>
<li>A notification is sent to the
<a href="https://groups.google.com/group/golang-announce">golang-announce</a>
mailing list to give users time to prepare their systems for the update.</li>
<li>Three working days following this notification, the fixes are applied to
the <a href="https://go.googlesource.com/go">public repository</a> and a new
Go release is issued.</li>
<li>On the date that the fixes are applied, announcements are sent to
<a href="https://groups.google.com/group/golang-announce">golang-announce</a>,
<a href="https://groups.google.com/group/golang-dev">golang-dev</a>, and
<a href="https://groups.google.com/group/golang-nuts">golang-nuts</a>.
</ol>
<p>
This process can take some time, especially when coordination is required with
maintainers of other projects. Every effort will be made to handle the bug in
as timely a manner as possible, however it's important that we follow the
process described above to ensure that disclosures are handled consistently.
</p>
<p>
For security issues that include the assignment of a CVE-ID,
the issue is listed publicly under the
<a href="https://www.cvedetails.com/vulnerability-list/vendor_id-14185/Golang.html">"Golang" product on the CVEDetails website</a>
as well as the
<a href="https://web.nvd.nist.gov/view/vuln/search">National Vulnerability Disclosure site</a>.
</p>
<h3>Receiving Security Updates</h3>
<p>
The best way to receive security announcements is to subscribe to the
<a href="https://groups.google.com/forum/#!forum/golang-announce">golang-announce</a>
mailing list. Any messages pertaining to a security issue will be prefixed
with <code>[security]</code>.
</p>
<h3>Comments on This Policy</h3>
<p>
If you have any suggestions to improve this policy, please send an email to
<a href="mailto:golang-dev@golang.org">golang-dev@golang.org</a> for discussion.
</p>
<h3>PGP Key for <a href="mailto:security@golang.org">security@golang.org</a></h3>
<p>
We accept PGP-encrypted email, but the majority of the security team
are not regular PGP users so it's somewhat inconvenient. Please only
use PGP for critical security reports.
</p>
<pre>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Comment: GPGTools - https://gpgtools.org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=WE0r
-----END PGP PUBLIC KEY BLOCK-----
</pre>

View File

@@ -3,7 +3,7 @@ the code and data maintained as part of the IANA Time Zone Database.
The IANA asserts that the database is in the public domain.
For more information, see
https://www.iana.org/time-zones
http://www.iana.org/time-zones
ftp://ftp.iana.org/tz/code/tz-link.htm
http://tools.ietf.org/html/rfc6557

View File

@@ -5,35 +5,47 @@
# This script rebuilds the time zone files using files
# downloaded from the ICANN/IANA distribution.
# Consult https://www.iana.org/time-zones for the latest versions.
# Consult http://www.iana.org/time-zones for the latest versions.
# Versions to use.
CODE=2020a
DATA=2020a
CODE=2017b
DATA=2017b
set -e
rm -rf work
mkdir work
cd work
mkdir zoneinfo
curl -L -O https://www.iana.org/time-zones/repository/releases/tzcode$CODE.tar.gz
curl -L -O https://www.iana.org/time-zones/repository/releases/tzdata$DATA.tar.gz
curl -O http://www.iana.org/time-zones/repository/releases/tzcode$CODE.tar.gz
curl -O http://www.iana.org/time-zones/repository/releases/tzdata$DATA.tar.gz
tar xzf tzcode$CODE.tar.gz
tar xzf tzdata$DATA.tar.gz
# Turn off 64-bit output in time zone files.
# We don't need those until 2037.
perl -p -i -e 's/pass <= 2/pass <= 1/' zic.c
make CFLAGS=-DSTD_INSPIRED AWK=awk TZDIR=zoneinfo posix_only
# America/Los_Angeles should not be bigger than 1100 bytes.
# If it is, we probably failed to disable the 64-bit output, which
# triples the size of the files.
size=$(ls -l zoneinfo/America/Los_Angeles | awk '{print $5}')
if [ $size -gt 1200 ]; then
echo 'zone file too large; 64-bit edit failed?' >&2
exit 2
fi
cd zoneinfo
rm -f ../../zoneinfo.zip
zip -0 -r ../../zoneinfo.zip *
cd ../..
go generate time/tzdata
echo
if [ "$1" = "-work" ]; then
if [ "$1" = "-work" ]; then
echo Left workspace behind in work/.
else
rm -rf work
fi
echo New time zone files in zoneinfo.zip.

Binary file not shown.

View File

@@ -6,20 +6,6 @@ mobile subrepository:
https://github.com/golang/mobile
To run the standard library tests, enable Cgo and use an appropriate
C compiler from the Android NDK. For example,
CGO_ENABLED=1 \
GOOS=android \
GOARCH=arm64 \
CC_FOR_TARGET=$NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-clang \
./all.bash
To run tests on the Android device, add the bin directory to PATH so the
go tool can find the go_android_$GOARCH_exec wrapper generated by
make.bash. For example, to run the go1 benchmarks
export PATH=$GOROOT/bin:$PATH
cd $GOROOT/test/bench/go1/
GOOS=android GOARCH=arm64 go test -bench=. -count=N -timeout=T
To run the standard library tests, see androidtest.bash. Run it as
CC_FOR_TARGET=.../ndk-gcc GOARCH=arm GOARM=7 ./androidtest.bash

Some files were not shown because too many files have changed in this diff Show More