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- /* Copyright (C) 1999 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- 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 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
- Lesser General Public License for more details.
- 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 <sys/syscall.h>
- #ifndef __NR_vfork
- /* No vfork so use fork instead */
- .weak vfork
- vfork = __libc_fork
- #else
- .text
- .global vfork
- .type vfork,%function
- .align 4
- __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
- .size __vfork,.-__vfork
- .weak vfork
- vfork = __vfork
- #endif /* __NR_vfork */
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