1 /* Copyright (C) 2005 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, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 /* vfork() is just a special case of clone(). */
23 #include <asm/unistd.h>
29 FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
30 GPOFF= FRAMESZ-(1*SZREG)
31 NESTED(__vfork,FRAMESZ,sp)
36 SETUP_GP64 (a5, __vfork)
41 # if (_MIPS_SIM != _ABIO32)
46 # if (_MIPS_SIM == _ABIO32)
51 # if (_MIPS_SIM != _ABIO32)
56 /* If libpthread is loaded, we need to call fork instead. */
58 PTR_L a0, __libc_pthread_functions
61 PTR_LA a0, pthread_create
68 li a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */
71 /* Do the system call */
77 /* Successful return from the parent or child. */
81 /* Something bad happened -- no child created. */
84 PTR_LA t9, __syscall_error
103 libc_hidden_def(__vfork)
104 weak_alias(__vfork, vfork)