diff options
Diffstat (limited to 'linuxthreads')
| -rw-r--r-- | linuxthreads/ChangeLog | 4 | ||||
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S | 59 |
2 files changed, 63 insertions, 0 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog index de0204dc80..880b05092b 100644 --- a/linuxthreads/ChangeLog +++ b/linuxthreads/ChangeLog @@ -1,3 +1,7 @@ +2002-01-12 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> + + * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: New file. + 2002-01-09 Richard Henderson <rth@redhat.com> * sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Assume only diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S new file mode 100644 index 0000000000..f62d3f44c3 --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S @@ -0,0 +1,59 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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. */ + +#include <sysdep-cancel.h> +#define _ERRNO_H 1 +#include <bits/errno.h> +#include <kernel-features.h> + +/* Clone the calling process, but without copying the whole address space. + The calling process is suspended until the new process exits or is + replaced by a call to `execve'. Return -1 for errors, 0 to the new process, + and the process ID of the new process to the old process. */ + +ENTRY (__vfork) + +#ifdef __NR_vfork + + SINGLE_THREAD_P + bne- HIDDEN_JUMPTARGET(__fork) + + DO_CALL (SYS_ify (vfork)); + +# ifdef __ASSUME_VFORK_SYSCALL + PSEUDO_RET +# else + bnslr+ + /* Check if vfork syscall is known at all. */ + cmpwi r3,ENOSYS + bne JUMPTARGET(__syscall_error) + +# endif +#endif + +#ifndef __ASSUME_VFORK_SYSCALL + /* If we don't have vfork, fork is close enough. */ + + DO_CALL (SYS_ify (fork)); + PSEUDO_RET +#endif + +PSEUDO_END (__vfork) +libc_hidden_def (__vfork) + +weak_alias (__vfork, vfork) |