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unix: use Getpgid to emulate Getpgrp on linux

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Some Linux architectures (e.g. arm64) don't have the getpgrp syscall,
use getpgid(0) to emulate it.

Update golang/go#10150.

This brings CL 8022 that has been applied to the syscall package to
x/sys.

Change-Id: I24c6d7e8b5b2f075ca4e68b142b2e03ab8a43342
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/8023
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Shenghou Ma
2015-03-24 20:03:14 +00:00
committed by Minux Ma
parent bfff0ae28b
commit 2cb975bb60
4 changed files with 6 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/syscall_linux.go
+6 -1
View File
@@ -810,7 +810,12 @@ func Mount(source string, target string, fstype string, flags uintptr, data stri
//sys Fsync(fd int) (err error) //sys Fsync(fd int) (err error)
//sys Getdents(fd int, buf []byte) (n int, err error) = SYS_GETDENTS64 //sys Getdents(fd int, buf []byte) (n int, err error) = SYS_GETDENTS64
//sysnb Getpgid(pid int) (pgid int, err error) //sysnb Getpgid(pid int) (pgid int, err error)
//sysnb Getpgrp() (pid int)
func Getpgrp() (pid int) {
pid, _ = Getpgid(0)
return
}
//sysnb Getpid() (pid int) //sysnb Getpid() (pid int)
//sysnb Getppid() (ppid int) //sysnb Getppid() (ppid int)
//sys Getpriority(which int, who int) (prio int, err error) //sys Getpriority(which int, who int) (prio int, err error)
unix/zsyscall_linux_386.go
-8
View File
@@ -542,14 +542,6 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpgrp() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPGRP, 0, 0, 0)
pid = int(r0)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) { func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0) r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
pid = int(r0) pid = int(r0)
unix/zsyscall_linux_amd64.go
-8
View File
@@ -542,14 +542,6 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpgrp() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPGRP, 0, 0, 0)
pid = int(r0)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) { func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0) r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
pid = int(r0) pid = int(r0)
unix/zsyscall_linux_arm.go
-8
View File
@@ -542,14 +542,6 @@ func Getpgid(pid int) (pgid int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpgrp() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPGRP, 0, 0, 0)
pid = int(r0)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) { func Getpid() (pid int) {
r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0) r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
pid = int(r0) pid = int(r0)