musl/src/process/vfork.c

#define _GNU_SOURCE
#include <unistd.h>
#include <signal.h>
#include "syscall.h"
#include "libc.h"

pid_t __vfork(void)
{
	/* vfork syscall cannot be made from C code */
#ifdef SYS_fork
	return syscall(SYS_fork);
#else
	return syscall(SYS_clone, SIGCHLD, 0);
#endif
}

weak_alias(__vfork, vfork);
include cleanups: remove unused headers and add feature test macros 2013-12-12 05:09:18 +00:00			`#define _GNU_SOURCE`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#include <unistd.h>`
additional fixes for linux kernel apis with old syscalls removed 2014-05-30 01:51:23 -04:00			`#include <signal.h>`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#include "syscall.h"`
make available a namespace-safe vfork, if supported this may be useful to posix_spawn..? 2011-10-14 23:34:12 -04:00			`#include "libc.h"`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00
make available a namespace-safe vfork, if supported this may be useful to posix_spawn..? 2011-10-14 23:34:12 -04:00			`pid_t __vfork(void)`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`{`
			`/* vfork syscall cannot be made from C code */`
additional fixes for linux kernel apis with old syscalls removed 2014-05-30 01:51:23 -04:00			`#ifdef SYS_fork`
global cleanup to use the new syscall interface 2011-03-20 00:16:43 -04:00			`return syscall(SYS_fork);`
additional fixes for linux kernel apis with old syscalls removed 2014-05-30 01:51:23 -04:00			`#else`
			`return syscall(SYS_clone, SIGCHLD, 0);`
			`#endif`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`}`
make available a namespace-safe vfork, if supported this may be useful to posix_spawn..? 2011-10-14 23:34:12 -04:00
			`weak_alias(__vfork, vfork);`