diff options
Diffstat (limited to 'libc/sysdeps/linux/common')
| -rw-r--r-- | libc/sysdeps/linux/common/vfork.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/libc/sysdeps/linux/common/vfork.c b/libc/sysdeps/linux/common/vfork.c index eda76aeac..e7c920892 100644 --- a/libc/sysdeps/linux/common/vfork.c +++ b/libc/sysdeps/linux/common/vfork.c @@ -4,24 +4,30 @@ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ -/* Trivial implementation for arches that lack vfork */ #include <unistd.h> #include <sys/types.h> #include <sys/syscall.h> -#ifdef __ARCH_USE_MMU__ +extern __typeof(vfork) __vfork attribute_hidden; -#ifdef __NR_fork -/* libc_hidden_proto(fork) */ +#ifdef __NR_vfork + +# define __NR___vfork __NR_vfork +_syscall0(pid_t, __vfork) + +weak_alias(__vfork,vfork) +libc_hidden_weak(vfork) + +#elif defined __ARCH_USE_MMU__ && defined __NR_fork + +/* Trivial implementation for arches that lack vfork */ -extern __typeof(vfork) __vfork attribute_hidden; pid_t __vfork(void) { return fork(); } -/* libc_hidden_proto(vfork) */ + weak_alias(__vfork,vfork) libc_hidden_weak(vfork) -#endif #endif |