1 /* Copyright (C) 2005-2014 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library. If not, see
16 <http://www.gnu.org/licenses/>. */
18 /* vfork() is just a special case of clone(). */
22 #include <asm/unistd.h>
39 FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
40 GPOFF= FRAMESZ-(1*SZREG)
41 NESTED(__vfork,FRAMESZ,sp)
46 cfi_adjust_cfa_offset (FRAMESZ)
47 SETUP_GP64_REG (a5, __vfork)
52 # if (_MIPS_SIM != _ABIO32)
57 # if (_MIPS_SIM == _ABIO32)
62 # if (_MIPS_SIM != _ABIO32)
68 cfi_adjust_cfa_offset (-FRAMESZ)
72 li a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */
75 /* Do the system call */
84 /* Successful return from the parent or child. */
88 /* Something bad happened -- no child created. */
92 PTR_LA t9, __syscall_error
101 libc_hidden_def(__vfork)
102 weak_alias (__vfork, vfork)