Getdirentries is implemented with the __getdirentries64 function
in libSystem.dylib on darwin/{386,amd64}. That function can't be used in
an app store application.
Implement Getdirentries using the underlying
fdopendir/readdir_r/closedir for Go 1.13. The simulation isn't faithful,
and could be slow, but it should handle common cases.
For Go 1.12, fall back to raw syscalls since syscall.syscallPtr needed
to use fdopendir from libSystem.dylib is not available.
Follow CL 168479 and CL 170892 which did the same for syscall in the
stdlib.
Tested on darwin/amd64 with Go 1.11, Go 1.12 and Go 1.13
Fixesgolang/go#34400
Change-Id: I631382aaea9ee7e0c4ed09e06ad5427efc620769
Reviewed-on: https://go-review.googlesource.com/c/sys/+/196478
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Call into libSystem (Darwin's libc equivalent) to do system calls.
Raw syscalls are not a supported ABI on Darwin, they want us to use
libSystem calls instead.
The stdlib has already been converted to this new regime. This
package is vendored into the stdlib, so we need to fix it also, then
vendor it in again.
Because this package isn't tied to a Go release, we need to keep the
old code around and use the new code only for 1.12 and up.
Update golang/go#17490
Change-Id: Idbcacff096b5bfeac871aa75dfd971570ac93322
Reviewed-on: https://go-review.googlesource.com/c/154179
Reviewed-by: Ian Lance Taylor <iant@golang.org>
