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unix: always use fstatat(AT_SYMLINK_NOFOLLOW) over lstat on AMD64

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ARM64 does this exact same thing, and in fact this is required on
Android 9, where Bionic now only allows lstat on 32-bit platforms
Folks are running into this when using Android on Chromebooks,
which are keeping AMD64 Android alive. So, we change the AMD64
behavior to model that of ARM64.

Change-Id: Id933cc22b42ab365c12980915557bdbf88661a4d
Reviewed-on: https://go-review.googlesource.com/c/153319
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Jason A. Donenfeld
2018-12-10 03:00:07 +00:00
committed by Brad Fitzpatrick
parent b0bfa5dc15
commit 2a47403f2a
2 changed files with 5 additions and 16 deletions
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unix/syscall_linux_amd64.go
+5 -1
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@@ -35,7 +35,11 @@ func InotifyInit() (fd int, err error) {
//sys Iopl(level int) (err error)
//sys Lchown(path string, uid int, gid int) (err error)
//sys Listen(s int, n int) (err error)
//sys Lstat(path string, stat *Stat_t) (err error)
func Lstat(path string, stat *Stat_t) (err error) {
return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
}
//sys Pause() (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64