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x/sys/unix: fix time/utime/utimes on arm64

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In commit "7e44b69 x/sys/unix: fix invalid syscall on linux/arm"
a test was added for time/utime syscall. This test exposed that
neither time/utime work on arm64, because they call the legacy
syscall "utimes". As a new architecture, arm64 doesn't implement
any legacy syscalls.

Implement by first calling utimensat, using UtimesNano as exampple.

Change-Id: Iffed410730c06ac4c8184241d16eebf08c367524
Reviewed-on: https://go-review.googlesource.com/20174
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Riku Voipio
2016-03-03 15:45:59 +00:00
committed by Brad Fitzpatrick
parent 54535356f1
commit 7a56174f00
3 changed files with 32 additions and 31 deletions
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unix/syscall_linux.go
+12 -1
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@@ -92,13 +92,24 @@ func Unlinkat(dirfd int, path string, flags int) error {
//sys utimes(path string, times *[2]Timeval) (err error)
func Utimes(path string, tv []Timeval) (err error) {
func Utimes(path string, tv []Timeval) error {
if tv == nil {
err := utimensat(AT_FDCWD, path, nil, 0)
if err != ENOSYS {
return err
}
return utimes(path, nil)
}
if len(tv) != 2 {
return EINVAL
}
var ts [2]Timespec
ts[0] = NsecToTimespec(TimevalToNsec(tv[0]))
ts[1] = NsecToTimespec(TimevalToNsec(tv[1]))
err := utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
if err != ENOSYS {
return err
}
return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}