unix: add SyscallNoError and RawSyscallNoError on Linux

Add the SyscallNoError and RawSyscallNoError wrapper functions which are
used for syscalls that don't return an error. Also convert all applicable
syscalls to use these wrappers.

Updates golang/go#22924

Change-Id: Ie143abc99de8d12d36b67ac278e08d7565f73ce0
Reviewed-on: https://go-review.googlesource.com/85756
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser authored and Brad Fitzpatrick committed 2018-01-03 16:03:02 +00:00
1 parent 83801418e1
commit 28a7276518
21 files changed
+370 -130

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+10 -10
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@@ -538,7 +538,7 @@ func Eventfd(initval uint, flags int) (fd int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Exit(code int) {
Syscall(SYS_EXIT_GROUP, uintptr(code), 0, 0)
SyscallNoError(SYS_EXIT_GROUP, uintptr(code), 0, 0)
return
}
@@ -674,7 +674,7 @@ 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
}
@@ -682,7 +682,7 @@ 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
}
@@ -739,7 +739,7 @@ func Getsid(pid int) (sid int, 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
}
@@ -1239,7 +1239,7 @@ func Setxattr(path string, attr string, data []byte, flags int) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Sync() {
Syscall(SYS_SYNC, 0, 0, 0)
SyscallNoError(SYS_SYNC, 0, 0, 0)
return
}
@@ -1298,7 +1298,7 @@ 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
}
@@ -1540,7 +1540,7 @@ 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
}
@@ -1548,7 +1548,7 @@ 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
}
@@ -1556,7 +1556,7 @@ 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
}
@@ -1564,7 +1564,7 @@ func Getgid() (gid int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
r0, _ := RawSyscallNoError(SYS_GETUID, 0, 0, 0)
uid = int(r0)
return
}