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8 Commits

Author SHA1 Message Date
Sergey Ivanov
e047566fdf unix: add new setfsuid/setfsgid wrappers 
Added SetfsgidRetGid and SetfsuidRetUid wrappers for corresponding
syscalls, both returning previous gid or uid set.

Fixes golang/go#36649

Change-Id: I95176f4442258ca68db79cf967fbf0bbf0a57acf
Reviewed-on: https://go-review.googlesource.com/c/sys/+/215579
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
 2020-01-22 13:43:26 +00:00
Brad Fitzpatrick
c1edf53553 Revert "unix: fix Setfsuid and Setfsgid return values" 
This reverts commit 94506bca4f.

Reason for revert: breaking API change; I want more discussion before we do this.
 
e.g. it breaks https://github.com/search?utf8=%E2%9C%93&q=unix.Setfsuid+filename%3A*.go&type=Code&ref=advsearch&l=&l= ... like 351481c720/src/LinuxBoot/github.com/u-root/u-root/cmds/core/fusermount/fusermount_linux.go

Change-Id: I474195047f080d0b2c2178578c5f45520af96c53
Reviewed-on: https://go-review.googlesource.com/c/sys/+/215518
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2020-01-20 15:04:07 +00:00
Sergey Ivanov
94506bca4f unix: fix Setfsuid and Setfsgid return values 
setfsuid(2) and setfsgid(2) both return an int value that indicates the
previous fsuid or fsgid set. This change makes unix.Setfsgid() and
unix.Setfsuid() return these values too instead of returning only an
error.

Fixes golang/go#36649

Change-Id: I56cbb49d7485023b6b04f7b95e8f675473241d8c
Reviewed-on: https://go-review.googlesource.com/c/sys/+/215240
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
 2020-01-20 14:57:06 +00:00
andig
f460065e89 unix: add Msghdr.SetIovlen 
Fixes golang/go#34164

Change-Id: I77e634fafe8e573d5d2c65ddae9b0771c9f3e88f
GitHub-Last-Rev: dd25f06f86
GitHub-Pull-Request: golang/sys#42
Reviewed-on: https://go-review.googlesource.com/c/sys/+/194077
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
 2019-09-09 08:27:30 +00:00
Tobias Klauser
e844e0132e unix: update Dockerfile to Go 1.12 and Linux 5.0 
Also enable KexecFileLoad on linux/{arm64,riscv64} now that they have
SYS_KEXEC_FILE_LOAD.

Change-Id: I1c52d09a1a617794f2df697e4966c4c24a166611
Reviewed-on: https://go-review.googlesource.com/c/sys/+/164997
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2019-03-04 15:46:30 +00:00
Tobias Klauser
e5ecc2a674 unix: use Renameat2 to implement Renameat on linux/riscv64 
On linux/riscv64, the renameat syscall no longer exists and has been
superseded by renameat2. Use Renameat2 to implement Renameat on
linux/riscv64.

Based on a patch by Ryan O'Leary.

Updates golang/go#27532

Change-Id: I7c60c7f824750408265f67397b8ac1fa7226f425
Reviewed-on: https://go-review.googlesource.com/c/157899
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
 2019-01-16 15:12:25 +00:00
Tobias Klauser
5cd93ef61a unix: use ppoll to implement Pause on linux/{arm64,riscv64} 
Use ppoll instead of re-implementing it using Syscall6(SYS_PPOLL, ...)

Change-Id: I7b3baa00df32dc1fe7ee80755843a492a884938c
Reviewed-on: https://go-review.googlesource.com/c/144171
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
 2018-10-24 14:56:15 +00:00
Tobias Klauser
8cf3aee429 unix: add support for linux/riscv64 
Add syscall wrappers, error constants and types for linux/riscv64

Switch docker image to Ubuntu 18.10 in order to get qemu supporting
riscv64. Also set the uname release string for qemu to 4.15 (the first
Linux kernel version with riscv64 support), because otherwise running
the generating C program in mkerrors.sh on a host with an older kernel
would fail with a "FATAL: kernel too old".

Note that linux/riscv64 is currently only usable using gccgo.

Updates golang/go#27532

Change-Id: Ic420f842342418443474cac72d38adff14d1b938
Reviewed-on: https://go-review.googlesource.com/133735
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2018-09-06 13:30:57 +00:00