diff options
| author | Peter S. Mazinger <ps.m@gmx.net> | 2011-04-16 15:40:50 +0200 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2012-06-15 14:00:40 +0200 |
| commit | 0a043c30ee71245dfe7c9d82d654312c5e1f6127 (patch) | |
| tree | 5596b98af169f71b9ce8d3ba0f0088b271bee2c2 /libc/sysdeps/linux/common/vfork.c | |
| parent | 917176e71ef901297e420bbb0db99be5e8100fc3 (diff) | |
vfork: make all archs consistent
__vfork is hidden.
__GI_vfork is strong (not weak as it was).
vfork is weak.
e1 can use the generic version.
Note: libc_hidden_def(x) has different meaning in .c and .S files.
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/common/vfork.c')
| -rw-r--r-- | libc/sysdeps/linux/common/vfork.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/libc/sysdeps/linux/common/vfork.c b/libc/sysdeps/linux/common/vfork.c index e7c920892..a70ed4a63 100644 --- a/libc/sysdeps/linux/common/vfork.c +++ b/libc/sysdeps/linux/common/vfork.c @@ -4,30 +4,22 @@ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ -#include <unistd.h> -#include <sys/types.h> #include <sys/syscall.h> +#if (defined __NR_vfork || (defined __ARCH_USE_MMU__ && defined __NR_fork)) && (defined __USE_BSD || defined __USE_XOPEN_EXTENDED) +# include <unistd.h> extern __typeof(vfork) __vfork attribute_hidden; -#ifdef __NR_vfork - -# define __NR___vfork __NR_vfork +# 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 - +# else /* Trivial implementation for arches that lack vfork */ - pid_t __vfork(void) { return fork(); } - -weak_alias(__vfork,vfork) +# endif +strong_alias(__vfork,vfork) libc_hidden_weak(vfork) - #endif |