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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 11:22:56 +02:00
committed by Tobias Klauser
parent bc7a7d42d5
commit 3aab700007
13 changed files with 101 additions and 160 deletions
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1
unix/syscall_darwin.go
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@@ -423,6 +423,7 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
//sysnb Getrlimit(which int, lim *Rlimit) (err error)
//sysnb Getrusage(who int, rusage *Rusage) (err error)
//sysnb Getsid(pid int) (sid int, err error)
//sysnb Gettimeofday(tp *Timeval) (err error)
//sysnb Getuid() (uid int)
//sysnb Issetugid() (tainted bool)
//sys Kqueue() (fd int, err error)

11
unix/syscall_darwin_386.go
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@@ -20,17 +20,6 @@ func setTimeval(sec, usec int64) Timeval {
return Timeval{Sec: int32(sec), Usec: int32(usec)}
}
//sysnb gettimeofday(tp *Timeval) (sec int32, usec int32, err error)
func Gettimeofday(tv *Timeval) (err error) {
// The tv passed to gettimeofday must be non-nil
// but is otherwise unused. The answers come back
// in the two registers.
sec, usec, err := gettimeofday(tv)
tv.Sec = int32(sec)
tv.Usec = int32(usec)
return err
}
func SetKevent(k *Kevent_t, fd, mode, flags int) {
k.Ident = uint32(fd)
k.Filter = int16(mode)

11
unix/syscall_darwin_amd64.go
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@@ -20,17 +20,6 @@ func setTimeval(sec, usec int64) Timeval {
return Timeval{Sec: sec, Usec: int32(usec)}
}
//sysnb gettimeofday(tp *Timeval) (sec int64, usec int32, err error)
func Gettimeofday(tv *Timeval) (err error) {
// The tv passed to gettimeofday must be non-nil
// but is otherwise unused. The answers come back
// in the two registers.
sec, usec, err := gettimeofday(tv)
tv.Sec = sec
tv.Usec = usec
return err
}
func SetKevent(k *Kevent_t, fd, mode, flags int) {
k.Ident = uint64(fd)
k.Filter = int16(mode)

11
unix/syscall_darwin_arm.go
View File

@@ -20,17 +20,6 @@ func setTimeval(sec, usec int64) Timeval {
return Timeval{Sec: int32(sec), Usec: int32(usec)}
}
//sysnb gettimeofday(tp *Timeval) (sec int32, usec int32, err error)
func Gettimeofday(tv *Timeval) (err error) {
// The tv passed to gettimeofday must be non-nil
// but is otherwise unused. The answers come back
// in the two registers.
sec, usec, err := gettimeofday(tv)
tv.Sec = int32(sec)
tv.Usec = int32(usec)
return err
}
func SetKevent(k *Kevent_t, fd, mode, flags int) {
k.Ident = uint32(fd)
k.Filter = int16(mode)

11
unix/syscall_darwin_arm64.go
View File

@@ -22,17 +22,6 @@ func setTimeval(sec, usec int64) Timeval {
return Timeval{Sec: sec, Usec: int32(usec)}
}
//sysnb gettimeofday(tp *Timeval) (sec int64, usec int32, err error)
func Gettimeofday(tv *Timeval) (err error) {
// The tv passed to gettimeofday must be non-nil
// but is otherwise unused. The answers come back
// in the two registers.
sec, usec, err := gettimeofday(tv)
tv.Sec = sec
tv.Usec = usec
return err
}
func SetKevent(k *Kevent_t, fd, mode, flags int) {
k.Ident = uint64(fd)
k.Filter = int16(mode)

22
unix/zsyscall_darwin_386.1_11.go
View File

@@ -966,6 +966,16 @@ func Getsid(pid int) (sid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettimeofday(tp *Timeval) (err error) {
_, _, e1 := RawSyscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tp)), 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
uid = int(r0)
@@ -1709,18 +1719,6 @@ func ptrace(request int, pid int, addr uintptr, data uintptr) (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 := RawSyscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tp)), 0, 0)
sec = int32(r0)
usec = int32(r1)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, stat *Stat_t) (err error) {
_, _, e1 := Syscall(SYS_FSTAT64, uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {

32
unix/zsyscall_darwin_386.go
View File

@@ -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)
@@ -2357,23 +2372,6 @@ func libc_ptrace_trampoline()
// 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_fstat64_trampoline), uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {

22
unix/zsyscall_darwin_amd64.1_11.go
View File

@@ -966,6 +966,16 @@ func Getsid(pid int) (sid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettimeofday(tp *Timeval) (err error) {
_, _, e1 := RawSyscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tp)), 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
uid = int(r0)
@@ -1709,18 +1719,6 @@ func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func gettimeofday(tp *Timeval) (sec int64, usec int32, err error) {
r0, r1, e1 := RawSyscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tp)), 0, 0)
sec = int64(r0)
usec = int32(r1)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, stat *Stat_t) (err error) {
_, _, e1 := Syscall(SYS_FSTAT64, uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {

32
unix/zsyscall_darwin_amd64.go
View File

@@ -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)
@@ -2357,23 +2372,6 @@ func libc_ptrace_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func gettimeofday(tp *Timeval) (sec int64, usec int32, err error) {
r0, r1, e1 := syscall_rawSyscall(funcPC(libc_gettimeofday_trampoline), uintptr(unsafe.Pointer(tp)), 0, 0)
sec = int64(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_fstat64_trampoline), uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {

22
unix/zsyscall_darwin_arm.1_11.go
View File

@@ -966,6 +966,16 @@ func Getsid(pid int) (sid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettimeofday(tp *Timeval) (err error) {
_, _, e1 := RawSyscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tp)), 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
uid = int(r0)
@@ -1682,18 +1692,6 @@ 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 := RawSyscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tp)), 0, 0)
sec = int32(r0)
usec = int32(r1)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, stat *Stat_t) (err error) {
_, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {

32
unix/zsyscall_darwin_arm.go
View File

@@ -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 {

22
unix/zsyscall_darwin_arm64.1_11.go
View File

@@ -966,6 +966,16 @@ func Getsid(pid int) (sid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettimeofday(tp *Timeval) (err error) {
_, _, e1 := RawSyscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tp)), 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
uid = int(r0)
@@ -1682,18 +1692,6 @@ 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 int64, usec int32, err error) {
r0, r1, e1 := RawSyscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tp)), 0, 0)
sec = int64(r0)
usec = int32(r1)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, stat *Stat_t) (err error) {
_, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {

32
unix/zsyscall_darwin_arm64.go
View File

@@ -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 int64, usec int32, err error) {
r0, r1, e1 := syscall_rawSyscall(funcPC(libc_gettimeofday_trampoline), uintptr(unsafe.Pointer(tp)), 0, 0)
sec = int64(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 {