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-rw-r--r--libc/sysdeps/linux/common/vfork.c20
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