1 /* Copyright (C) 2005-2016 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>
32 FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
33 GPOFF= FRAMESZ-(1*SZREG)
34 NESTED(__libc_vfork,FRAMESZ,sp)
39 cfi_adjust_cfa_offset (FRAMESZ)
40 SETUP_GP64_REG (a5, __libc_vfork)
45 # if (_MIPS_SIM != _ABIO32)
50 # if (_MIPS_SIM == _ABIO32)
55 # if (_MIPS_SIM != _ABIO32)
61 cfi_adjust_cfa_offset (-FRAMESZ)
63 li a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */
66 /* Do the system call */
73 /* Successful return from the parent or child. */
77 /* Something bad happened -- no child created. */
81 PTR_LA t9, __syscall_error
91 weak_alias (__libc_vfork, vfork)
92 strong_alias (__libc_vfork, __vfork)
93 libc_hidden_def (__vfork)