diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/sh/vfork.S')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/sh/vfork.S | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/sh/vfork.S b/REORG.TODO/sysdeps/unix/sysv/linux/sh/vfork.S new file mode 100644 index 0000000000..0626bda2df --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/sh/vfork.S @@ -0,0 +1,52 @@ +/* Copyright (C) 2004-2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#define _ERRNO_H 1 +#include <bits/errno.h> +#include <tcb-offsets.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 (__libc_vfork) + + mov.w .L1, r3 + trapa #0x10 + mov r0, r1 + + mov #-12, r2 + shad r2, r1 + not r1, r1 // r1=0 means r0 = -1 to -4095 + tst r1, r1 // i.e. error in linux + bf .Lpseudo_end + SYSCALL_ERROR_HANDLER +.Lpseudo_end: + rts + nop +.L1: + .word __NR_vfork + .align 2 +PSEUDO_END (__libc_vfork) + +#if IS_IN (libc) +weak_alias (__libc_vfork, vfork) +strong_alias (__libc_vfork, __vfork) +libc_hidden_def (__vfork) +#endif |