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syscall: support syscalls without error return on Linux

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Add the rawSyscallNoError wrapper function which is used for Linux
syscalls that don't return an error and convert all applicable
occurences of RawSyscall to use it instead.

Fixes #22924

Change-Id: Iff1eddb54573d459faa01471f10398b3d38528dd
Reviewed-on: https://go-review.googlesource.com/84485
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser 2017-12-18 11:59:26 +01:00 • committed by Tobias Klauser
parent acd17e9b2b
commit 36951a9f63
22 changed files with 316 additions and 114 deletions
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18
src/syscall/asm_linux_386.s
View file

@ -9,13 +9,12 @@
// System calls for 386, Linux
//
// func Syscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
// Trap # in AX, args in BX CX DX SI DI, return in AX
// See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
// instead of the glibc-specific "CALL 0x10(GS)".
#define INVOKE_SYSCALL INT $0x80
// func Syscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
// Trap # in AX, args in BX CX DX SI DI, return in AX
TEXT ·Syscall(SB),NOSPLIT,$0-28
CALL runtime·entersyscall(SB)
MOVL trap+0(FP), AX // syscall entry
@ -111,6 +110,19 @@ ok2:
MOVL $0, err+36(FP)
RET
// func rawSyscallNoError(trap uintptr, a1, a2, a3 uintptr) (r1, r2 uintptr);
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-24
MOVL trap+0(FP), AX // syscall entry
MOVL a1+4(FP), BX
MOVL a2+8(FP), CX
MOVL a3+12(FP), DX
MOVL $0, SI
MOVL $0, DI
INVOKE_SYSCALL
MOVL AX, r1+16(FP)
MOVL DX, r2+20(FP)
RET
#define SYS_SOCKETCALL 102 /* from zsysnum_linux_386.go */
// func socketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (n int, err int)

16
src/syscall/asm_linux_amd64.s
View file

@ -9,7 +9,7 @@
// System calls for AMD64, Linux
//
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
// func Syscall(trap int64, a1, a2, a3 uintptr) (r1, r2, err uintptr);
// Trap # in AX, args in DI SI DX R10 R8 R9, return in AX DX
// Note that this differs from "standard" ABI convention, which
// would pass 4th arg in CX, not R10.
@ -134,6 +134,20 @@ ok2:
MOVQ $0, err+24(FP)
RET
// func rawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr)
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
MOVQ a1+8(FP), DI
MOVQ a2+16(FP), SI
MOVQ a3+24(FP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ trap+0(FP), AX // syscall entry
SYSCALL
MOVQ AX, r1+32(FP)
MOVQ DX, r2+40(FP)
RET
// func gettimeofday(tv *Timeval) (err uintptr)
TEXT ·gettimeofday(SB),NOSPLIT,$0-16
MOVQ tv+0(FP), DI

12
src/syscall/asm_linux_arm.s
View file

@ -12,7 +12,6 @@
// TODO(kaib): handle error returns
// func Syscall(syscall uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
TEXT ·Syscall(SB),NOSPLIT,$0-28
BL runtime·entersyscall(SB)
MOVW trap+0(FP), R7
@ -157,3 +156,14 @@ ok1:
MOVW R0, err+24(FP)
RET
// func rawSyscallNoError(trap uintptr, a1, a2, a3 uintptr) (r1, r2 uintptr);
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-24
MOVW trap+0(FP), R7 // syscall entry
MOVW a1+4(FP), R0
MOVW a2+8(FP), R1
MOVW a3+12(FP), R2
SWI $0
MOVW R0, r1+16(FP)
MOVW $0, R0
MOVW R0, r2+20(FP)
RET

15
src/syscall/asm_linux_arm64.s
View file

@ -5,7 +5,6 @@
#include "textflag.h"
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
TEXT ·Syscall(SB),NOSPLIT,$0-56
BL runtime·entersyscall(SB)
MOVD a1+8(FP), R0
@ -103,3 +102,17 @@ ok:
MOVD R1, r2+64(FP) // r2
MOVD ZR, err+72(FP) // errno
RET
// func rawSyscallNoError(trap uintptr, a1, a2, a3 uintptr) (r1, r2 uintptr);
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD $0, R3
MOVD $0, R4
MOVD $0, R5
MOVD trap+0(FP), R8 // syscall entry
SVC
MOVD R0, r1+32(FP)
MOVD R1, r2+40(FP)
RET

14
src/syscall/asm_linux_mips64x.s
View file

@ -12,7 +12,6 @@
//
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
TEXT ·Syscall(SB),NOSPLIT,$0-56
JAL runtime·entersyscall(SB)
MOVV a1+8(FP), R4
@ -102,3 +101,16 @@ ok2:
MOVV R3, r2+64(FP) // r2
MOVV R0, err+72(FP) // errno
RET
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
MOVV a1+8(FP), R4
MOVV a2+16(FP), R5
MOVV a3+24(FP), R6
MOVV R0, R7
MOVV R0, R8
MOVV R0, R9
MOVV trap+0(FP), R2 // syscall entry
SYSCALL
MOVV R2, r1+32(FP)
MOVV R3, r2+40(FP)
RET

12
src/syscall/asm_linux_mipsx.s
View file

@ -13,7 +13,6 @@
//
// func Syscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
TEXT ·Syscall(SB),NOSPLIT,$0-28
JAL runtime·entersyscall(SB)
MOVW a1+4(FP), R4
@ -36,7 +35,6 @@ ok:
JAL runtime·exitsyscall(SB)
RET
// func Syscall6(trap trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
// 5th and 6th arg go at sp+16, sp+20.
// Note that frame size of 20 means that 24 bytes gets reserved on stack.
@ -140,3 +138,13 @@ ok2:
MOVW R3, r2+32(FP) // r2
MOVW R0, err+36(FP) // errno
RET
TEXT ·rawSyscallNoError(SB),NOSPLIT,$20-24
MOVW a1+4(FP), R4
MOVW a2+8(FP), R5
MOVW a3+12(FP), R6
MOVW trap+0(FP), R2 // syscall entry
SYSCALL
MOVW R2, r1+16(FP) // r1
MOVW R3, r2+20(FP) // r2
RET

14
src/syscall/asm_linux_ppc64x.s
View file

@ -12,7 +12,6 @@
//
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
TEXT ·Syscall(SB),NOSPLIT,$0-56
BL runtime·entersyscall(SB)
MOVD a1+8(FP), R3
@ -102,3 +101,16 @@ ok2:
MOVD R4, r2+64(FP) // r2
MOVD R0, err+72(FP) // errno
RET
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
MOVD a1+8(FP), R3
MOVD a2+16(FP), R4
MOVD a3+24(FP), R5
MOVD R0, R6
MOVD R0, R7
MOVD R0, R8
MOVD trap+0(FP), R9 // syscall entry
SYSCALL R9
MOVD R3, r1+32(FP)
MOVD R4, r2+40(FP)
RET

14
src/syscall/asm_linux_s390x.s
View file

@ -106,6 +106,20 @@ ok2:
MOVD $0, err+72(FP) // errno
RET
// func rawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr)
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
MOVD a1+8(FP), R2
MOVD a2+16(FP), R3
MOVD a3+24(FP), R4
MOVD $0, R5
MOVD $0, R6
MOVD $0, R7
MOVD trap+0(FP), R1 // syscall entry
SYSCALL
MOVD R2, r1+32(FP)
MOVD R3, r2+40(FP)
RET
#define SYS_SOCKETCALL 102 /* from zsysnum_linux_s390x.go */
// func socketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (n int, err int)

11
src/syscall/exec_linux.go
View file

@ -122,7 +122,7 @@ func forkAndExecInChild1(argv0 *byte, argv, envv []*byte, chroot, dir *byte, att
)
// Record parent PID so child can test if it has died.
ppid, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
ppid, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
// Guard against side effects of shuffling fds below.
// Make sure that nextfd is beyond any currently open files so
@ -219,10 +219,7 @@ func forkAndExecInChild1(argv0 *byte, argv, envv []*byte, chroot, dir *byte, att
if sys.Foreground {
pgrp := int32(sys.Pgid)
if pgrp == 0 {
r1, _, err1 = RawSyscall(SYS_GETPID, 0, 0, 0)
if err1 != 0 {
goto childerror
}
r1, _ = rawSyscallNoError(SYS_GETPID, 0, 0, 0)
pgrp = int32(r1)
}
@ -311,9 +308,9 @@ func forkAndExecInChild1(argv0 *byte, argv, envv []*byte, chroot, dir *byte, att
// Signal self if parent is already dead. This might cause a
// duplicate signal in rare cases, but it won't matter when
// using SIGKILL.
r1, _, _ = RawSyscall(SYS_GETPPID, 0, 0, 0)
r1, _ = rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
if r1 != ppid {
pid, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
pid, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
_, _, err1 := RawSyscall(SYS_KILL, pid, uintptr(sys.Pdeathsig), 0)
if err1 != 0 {
goto childerror

9
src/syscall/export_linux_test.go Normal file
View file

@ -0,0 +1,9 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package syscall
var RawSyscallNoError = rawSyscallNoError
const Sys_GETEUID = sys_GETEUID

9
src/syscall/mksyscall.pl
View file

@ -205,8 +205,12 @@ while(<>) {
# Determine which form to use; pad args with zeros.
my $asm = "Syscall";
if ($nonblock) {
if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
$asm = "rawSyscallNoError";
} else {
$asm = "RawSyscall";
}
}
if(@args <= 3) {
while(@args < 3) {
push @args, "0";
@ -281,9 +285,14 @@ while(<>) {
}
if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
$text .= "\t$call\n";
} else {
if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
# raw syscall without error on Linux, see golang.org/issue/22924
$text .= "\t$ret[0], $ret[1] := $call\n";
} else {
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
}
}
$text .= $body;
if ($plan9 && $ret[2] eq "e1") {

2
src/syscall/setuidgid_32_linux.go
View file

@ -8,6 +8,8 @@
package syscall
const (
sys_GETEUID = SYS_GETEUID32
sys_SETGID = SYS_SETGID32
sys_SETUID = SYS_SETUID32
)

2
src/syscall/setuidgid_linux.go
View file

@ -8,6 +8,8 @@
package syscall
const (
sys_GETEUID = SYS_GETEUID
sys_SETGID = SYS_SETGID
sys_SETUID = SYS_SETUID
)

2
src/syscall/syscall_linux.go
View file

@ -13,6 +13,8 @@ package syscall
import "unsafe"
func rawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr)
/*
* Wrapped
*/

86
src/syscall/syscall_linux_test.go
View file

@ -13,6 +13,9 @@ import (
"os/exec"
"os/signal"
"path/filepath"
"runtime"
"strconv"
"strings"
"syscall"
"testing"
"time"
@ -23,6 +26,8 @@ func TestMain(m *testing.M) {
deathSignalParent()
} else if os.Getenv("GO_DEATHSIG_CHILD") == "1" {
deathSignalChild()
} else if os.Getenv("GO_SYSCALL_NOERROR") == "1" {
syscallNoError()
}
os.Exit(m.Run())
@ -166,3 +171,84 @@ func TestParseNetlinkMessage(t *testing.T) {
}
}
}
func TestSyscallNoError(t *testing.T) {
// On Linux there are currently no syscalls which don't fail and return
// a value larger than 0xfffffffffffff001 so we could test RawSyscall
// vs. RawSyscallNoError on 64bit architectures.
if runtime.GOARCH != "386" && runtime.GOARCH != "arm" {
t.Skip("skipping on non-32bit architecture")
}
// TODO(tklauser) is this check enough? Otherwise test for being in a non-k8s
// Linux VM via testenv.Builder().
if os.Getuid() != 0 {
t.Skip("skipping root only test")
}
// Copy the test binary to a location that a non-root user can read/execute
// after we drop privileges
tempDir, err := ioutil.TempDir("", "TestSyscallNoError")
if err != nil {
t.Fatalf("cannot create temporary directory: %v", err)
}
defer os.RemoveAll(tempDir)
os.Chmod(tempDir, 0755)
tmpBinary := filepath.Join(tempDir, filepath.Base(os.Args[0]))
src, err := os.Open(os.Args[0])
if err != nil {
t.Fatalf("cannot open binary %q, %v", os.Args[0], err)
}
defer src.Close()
dst, err := os.OpenFile(tmpBinary, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0755)
if err != nil {
t.Fatalf("cannot create temporary binary %q, %v", tmpBinary, err)
}
if _, err := io.Copy(dst, src); err != nil {
t.Fatalf("failed to copy test binary to %q, %v", tmpBinary, err)
}
err = dst.Close()
if err != nil {
t.Fatalf("failed to close test binary %q, %v", tmpBinary, err)
}
uid := uint32(0xfffffffe)
err = os.Chown(tmpBinary, int(uid), -1)
if err != nil {
t.Fatalf("failed to chown test binary %q, %v", tmpBinary, err)
}
err = os.Chmod(tmpBinary, 0755|os.ModeSetuid)
if err != nil {
t.Fatalf("failed to set setuid bit on test binary %q, %v", tmpBinary, err)
}
cmd := exec.Command(tmpBinary)
cmd.Env = []string{"GO_SYSCALL_NOERROR=1"}
out, err := cmd.CombinedOutput()
if err != nil {
t.Fatalf("failed to start first child process: %v", err)
}
got := strings.TrimSpace(string(out))
want := strconv.FormatUint(uint64(uid)+1, 10) + " / " +
strconv.FormatUint(uint64(-uid), 10) + " / " +
strconv.FormatUint(uint64(uid), 10)
if got != want {
t.Errorf("expected %s, got %s", want, got)
}
}
func syscallNoError() {
// Test that the return value from SYS_GETEUID32 (which cannot fail)
// doesn't get treated as an error (see https://golang.org/issue/22924)
euid1, _, e := syscall.RawSyscall(syscall.Sys_GETEUID, 0, 0, 0)
euid2, _ := syscall.RawSyscallNoError(syscall.Sys_GETEUID, 0, 0, 0)
fmt.Println(uintptr(euid1), "/", int(e), "/", uintptr(euid2))
os.Exit(0)
}

16
src/syscall/zsyscall_linux_386.go
View file

@ -501,7 +501,7 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
pid = int(r0)
return
}
@ -509,7 +509,7 @@ func Getpid() (pid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getppid() (ppid int) {
r0, _, _ := RawSyscall(SYS_GETPPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
ppid = int(r0)
return
}
@ -538,7 +538,7 @@ func Getrusage(who int, rusage *Rusage) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettid() (tid int) {
r0, _, _ := RawSyscall(SYS_GETTID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETTID, 0, 0, 0)
tid = int(r0)
return
}
@ -945,7 +945,7 @@ func Times(tms *Tms) (ticks uintptr, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := RawSyscall(SYS_UMASK, uintptr(mask), 0, 0)
r0, _ := rawSyscallNoError(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
return
}
@ -1216,7 +1216,7 @@ func Ftruncate(fd int, length int64) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := RawSyscall(SYS_GETEGID32, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEGID32, 0, 0, 0)
egid = int(r0)
return
}
@ -1224,7 +1224,7 @@ func Getegid() (egid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Geteuid() (euid int) {
r0, _, _ := RawSyscall(SYS_GETEUID32, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEUID32, 0, 0, 0)
euid = int(r0)
return
}
@ -1232,7 +1232,7 @@ func Geteuid() (euid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getgid() (gid int) {
r0, _, _ := RawSyscall(SYS_GETGID32, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETGID32, 0, 0, 0)
gid = int(r0)
return
}
@ -1240,7 +1240,7 @@ func Getgid() (gid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID32, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETUID32, 0, 0, 0)
uid = int(r0)
return
}

16
src/syscall/zsyscall_linux_amd64.go
View file

@ -501,7 +501,7 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
pid = int(r0)
return
}
@ -509,7 +509,7 @@ func Getpid() (pid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getppid() (ppid int) {
r0, _, _ := RawSyscall(SYS_GETPPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
ppid = int(r0)
return
}
@ -538,7 +538,7 @@ func Getrusage(who int, rusage *Rusage) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettid() (tid int) {
r0, _, _ := RawSyscall(SYS_GETTID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETTID, 0, 0, 0)
tid = int(r0)
return
}
@ -945,7 +945,7 @@ func Times(tms *Tms) (ticks uintptr, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := RawSyscall(SYS_UMASK, uintptr(mask), 0, 0)
r0, _ := rawSyscallNoError(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
return
}
@ -1206,7 +1206,7 @@ func Ftruncate(fd int, length int64) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := RawSyscall(SYS_GETEGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEGID, 0, 0, 0)
egid = int(r0)
return
}
@ -1214,7 +1214,7 @@ func Getegid() (egid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Geteuid() (euid int) {
r0, _, _ := RawSyscall(SYS_GETEUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEUID, 0, 0, 0)
euid = int(r0)
return
}
@ -1222,7 +1222,7 @@ func Geteuid() (euid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getgid() (gid int) {
r0, _, _ := RawSyscall(SYS_GETGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETGID, 0, 0, 0)
gid = int(r0)
return
}
@ -1240,7 +1240,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETUID, 0, 0, 0)
uid = int(r0)
return
}

16
src/syscall/zsyscall_linux_arm.go
View file

@ -501,7 +501,7 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
pid = int(r0)
return
}
@ -509,7 +509,7 @@ func Getpid() (pid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getppid() (ppid int) {
r0, _, _ := RawSyscall(SYS_GETPPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
ppid = int(r0)
return
}
@ -538,7 +538,7 @@ func Getrusage(who int, rusage *Rusage) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettid() (tid int) {
r0, _, _ := RawSyscall(SYS_GETTID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETTID, 0, 0, 0)
tid = int(r0)
return
}
@ -945,7 +945,7 @@ func Times(tms *Tms) (ticks uintptr, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := RawSyscall(SYS_UMASK, uintptr(mask), 0, 0)
r0, _ := rawSyscallNoError(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
return
}
@ -1375,7 +1375,7 @@ func Fstat(fd int, stat *Stat_t) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := RawSyscall(SYS_GETEGID32, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEGID32, 0, 0, 0)
egid = int(r0)
return
}
@ -1383,7 +1383,7 @@ func Getegid() (egid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Geteuid() (euid int) {
r0, _, _ := RawSyscall(SYS_GETEUID32, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEUID32, 0, 0, 0)
euid = int(r0)
return
}
@ -1391,7 +1391,7 @@ func Geteuid() (euid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getgid() (gid int) {
r0, _, _ := RawSyscall(SYS_GETGID32, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETGID32, 0, 0, 0)
gid = int(r0)
return
}
@ -1399,7 +1399,7 @@ func Getgid() (gid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID32, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETUID32, 0, 0, 0)
uid = int(r0)
return
}

16
src/syscall/zsyscall_linux_arm64.go
View file

@ -501,7 +501,7 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
pid = int(r0)
return
}
@ -509,7 +509,7 @@ func Getpid() (pid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getppid() (ppid int) {
r0, _, _ := RawSyscall(SYS_GETPPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
ppid = int(r0)
return
}
@ -538,7 +538,7 @@ func Getrusage(who int, rusage *Rusage) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettid() (tid int) {
r0, _, _ := RawSyscall(SYS_GETTID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETTID, 0, 0, 0)
tid = int(r0)
return
}
@ -945,7 +945,7 @@ func Times(tms *Tms) (ticks uintptr, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := RawSyscall(SYS_UMASK, uintptr(mask), 0, 0)
r0, _ := rawSyscallNoError(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
return
}
@ -1211,7 +1211,7 @@ func Ftruncate(fd int, length int64) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := RawSyscall(SYS_GETEGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEGID, 0, 0, 0)
egid = int(r0)
return
}
@ -1219,7 +1219,7 @@ func Getegid() (egid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Geteuid() (euid int) {
r0, _, _ := RawSyscall(SYS_GETEUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEUID, 0, 0, 0)
euid = int(r0)
return
}
@ -1227,7 +1227,7 @@ func Geteuid() (euid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getgid() (gid int) {
r0, _, _ := RawSyscall(SYS_GETGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETGID, 0, 0, 0)
gid = int(r0)
return
}
@ -1245,7 +1245,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETUID, 0, 0, 0)
uid = int(r0)
return
}

16
src/syscall/zsyscall_linux_ppc64.go
View file

@ -501,7 +501,7 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
pid = int(r0)
return
}
@ -509,7 +509,7 @@ func Getpid() (pid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getppid() (ppid int) {
r0, _, _ := RawSyscall(SYS_GETPPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
ppid = int(r0)
return
}
@ -538,7 +538,7 @@ func Getrusage(who int, rusage *Rusage) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettid() (tid int) {
r0, _, _ := RawSyscall(SYS_GETTID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETTID, 0, 0, 0)
tid = int(r0)
return
}
@ -945,7 +945,7 @@ func Times(tms *Tms) (ticks uintptr, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := RawSyscall(SYS_UMASK, uintptr(mask), 0, 0)
r0, _ := rawSyscallNoError(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
return
}
@ -1206,7 +1206,7 @@ func Ftruncate(fd int, length int64) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := RawSyscall(SYS_GETEGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEGID, 0, 0, 0)
egid = int(r0)
return
}
@ -1214,7 +1214,7 @@ func Getegid() (egid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Geteuid() (euid int) {
r0, _, _ := RawSyscall(SYS_GETEUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEUID, 0, 0, 0)
euid = int(r0)
return
}
@ -1222,7 +1222,7 @@ func Geteuid() (euid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getgid() (gid int) {
r0, _, _ := RawSyscall(SYS_GETGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETGID, 0, 0, 0)
gid = int(r0)
return
}
@ -1240,7 +1240,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETUID, 0, 0, 0)
uid = int(r0)
return
}

16
src/syscall/zsyscall_linux_ppc64le.go
View file

@ -501,7 +501,7 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
pid = int(r0)
return
}
@ -509,7 +509,7 @@ func Getpid() (pid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getppid() (ppid int) {
r0, _, _ := RawSyscall(SYS_GETPPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
ppid = int(r0)
return
}
@ -538,7 +538,7 @@ func Getrusage(who int, rusage *Rusage) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettid() (tid int) {
r0, _, _ := RawSyscall(SYS_GETTID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETTID, 0, 0, 0)
tid = int(r0)
return
}
@ -945,7 +945,7 @@ func Times(tms *Tms) (ticks uintptr, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := RawSyscall(SYS_UMASK, uintptr(mask), 0, 0)
r0, _ := rawSyscallNoError(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
return
}
@ -1206,7 +1206,7 @@ func Ftruncate(fd int, length int64) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := RawSyscall(SYS_GETEGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEGID, 0, 0, 0)
egid = int(r0)
return
}
@ -1214,7 +1214,7 @@ func Getegid() (egid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Geteuid() (euid int) {
r0, _, _ := RawSyscall(SYS_GETEUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEUID, 0, 0, 0)
euid = int(r0)
return
}
@ -1222,7 +1222,7 @@ func Geteuid() (euid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getgid() (gid int) {
r0, _, _ := RawSyscall(SYS_GETGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETGID, 0, 0, 0)
gid = int(r0)
return
}
@ -1240,7 +1240,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETUID, 0, 0, 0)
uid = int(r0)
return
}

16
src/syscall/zsyscall_linux_s390x.go
View file

@ -501,7 +501,7 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPID, 0, 0, 0)
pid = int(r0)
return
}
@ -509,7 +509,7 @@ func Getpid() (pid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getppid() (ppid int) {
r0, _, _ := RawSyscall(SYS_GETPPID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
ppid = int(r0)
return
}
@ -538,7 +538,7 @@ func Getrusage(who int, rusage *Rusage) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettid() (tid int) {
r0, _, _ := RawSyscall(SYS_GETTID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETTID, 0, 0, 0)
tid = int(r0)
return
}
@ -945,7 +945,7 @@ func Times(tms *Tms) (ticks uintptr, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := RawSyscall(SYS_UMASK, uintptr(mask), 0, 0)
r0, _ := rawSyscallNoError(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
return
}
@ -1206,7 +1206,7 @@ func Ftruncate(fd int, length int64) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := RawSyscall(SYS_GETEGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEGID, 0, 0, 0)
egid = int(r0)
return
}
@ -1214,7 +1214,7 @@ func Getegid() (egid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Geteuid() (euid int) {
r0, _, _ := RawSyscall(SYS_GETEUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETEUID, 0, 0, 0)
euid = int(r0)
return
}
@ -1222,7 +1222,7 @@ func Geteuid() (euid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getgid() (gid int) {
r0, _, _ := RawSyscall(SYS_GETGID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETGID, 0, 0, 0)
gid = int(r0)
return
}
@ -1240,7 +1240,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
r0, _ := rawSyscallNoError(SYS_GETUID, 0, 0, 0)
uid = int(r0)
return
}