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-rw-r--r--libc/sysdeps/linux/sparc/vfork.S48
1 files changed, 35 insertions, 13 deletions
diff --git a/libc/sysdeps/linux/sparc/vfork.S b/libc/sysdeps/linux/sparc/vfork.S
index 2aef09ab1..0df960d65 100644
--- a/libc/sysdeps/linux/sparc/vfork.S
+++ b/libc/sysdeps/linux/sparc/vfork.S
@@ -3,28 +3,50 @@
Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 1999.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
/* Code taken from glibc2.2.2/sysdeps/unix/sysv/linux/sparc/vfork.S */
-#include "sysdep.h"
+#include <sys/syscall.h>
-PSEUDO (__vfork, vfork, 0)
+#ifndef __NR_vfork
+/* uClinux-2.0 only has fork which is really vfork */
+#define __NR_vfork __NR_fork
+#endif
+
+.text;
+.global vfork;
+.align 4;
+.type vfork,@function;
+
+vfork:
+ mov __NR_vfork, %g1
+ ta 0x10
+ bcc,a 9000f
+ nop
+ save %sp,-96,%sp
+ call __errno_location
+ nop
+ st %i0,[%o0]
+ jmpl %i7+8,%g0
+ restore %g0,-1,%o0
+
+9000:
sub %o1, 1, %o1
retl
- and %o0, %o1, %o0
+ and %o0, %o1, %o0
+
+.size vfork,.-vfork;
-.size __vfork,.-__vfork
-.weak vfork; vfork = __vfork;