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unix: call gettimeofday libc function directly

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This also works when invoking the raw syscall on Go ≤ 1.11

Fixes golang/go#38925

Change-Id: I137532da92b457a6853ed1be87c0aa72d2b2c886
Reviewed-on: https://go-review.googlesource.com/c/sys/+/232803
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matt Layher <mdlayher@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser
2020-05-08 21:44:44 +00:00
committed by Tobias Klauser
parent bc7a7d42d5
commit 3aab700007
13 changed files with 101 additions and 160 deletions
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unix/zsyscall_darwin_arm.go
+15 -17
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@@ -1376,6 +1376,21 @@ func libc_getsid_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettimeofday(tp *Timeval) (err error) {
_, _, e1 := syscall_rawSyscall(funcPC(libc_gettimeofday_trampoline), uintptr(unsafe.Pointer(tp)), 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
func libc_gettimeofday_trampoline()
//go:linkname libc_gettimeofday libc_gettimeofday
//go:cgo_import_dynamic libc_gettimeofday gettimeofday "/usr/lib/libSystem.B.dylib"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := syscall_rawSyscall(funcPC(libc_getuid_trampoline), 0, 0, 0)
uid = int(r0)
@@ -2342,23 +2357,6 @@ func writelen(fd int, buf *byte, nbuf int) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func gettimeofday(tp *Timeval) (sec int32, usec int32, err error) {
r0, r1, e1 := syscall_rawSyscall(funcPC(libc_gettimeofday_trampoline), uintptr(unsafe.Pointer(tp)), 0, 0)
sec = int32(r0)
usec = int32(r1)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
func libc_gettimeofday_trampoline()
//go:linkname libc_gettimeofday libc_gettimeofday
//go:cgo_import_dynamic libc_gettimeofday gettimeofday "/usr/lib/libSystem.B.dylib"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, stat *Stat_t) (err error) {
_, _, e1 := syscall_syscall(funcPC(libc_fstat_trampoline), uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {