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runtime: Use the clone system call on GNU/Linux. 

Without this we weren't supporting the standard Cloneflags
field of SysProcAttr.

From-SVN: r214972
This commit is contained in:
Ian Lance Taylor 2014-09-05 15:24:36 +00:00
parent 68a1a6c080
commit 01c2fa9d53
1 changed files with 2 additions and 2 deletions
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4
libgo/go/syscall/exec_linux.go
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@ -43,7 +43,7 @@ func forkAndExecInChild(argv0 *byte, argv, envv []*byte, chroot, dir *byte, attr
// Declare all variables at top in case any // Declare all variables at top in case any
// declarations require heap allocation (e.g., err1). // declarations require heap allocation (e.g., err1).
var ( var (
r1 Pid_t r1 uintptr
err1 Errno err1 Errno
nextfd int nextfd int
i int i int
@ -65,7 +65,7 @@ func forkAndExecInChild(argv0 *byte, argv, envv []*byte, chroot, dir *byte, attr
// About to call fork. // About to call fork.
// No more allocation or calls of non-assembly functions. // No more allocation or calls of non-assembly functions.
runtime_BeforeFork() runtime_BeforeFork()
r1, err1 = raw_fork() r1, _, err1 = RawSyscall6(SYS_CLONE, uintptr(SIGCHLD)|sys.Cloneflags, 0, 0, 0, 0, 0)
if err1 != 0 { if err1 != 0 {
runtime_AfterFork() runtime_AfterFork()
return 0, err1 return 0, err1