mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-31 22:10:34 +03:00
55 lines
1.8 KiB
ArmAsm
55 lines
1.8 KiB
ArmAsm
/* Copyright (C) 2000, 2002, 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 _SIGNAL_H
|
|
#include <bits/signum.h>
|
|
|
|
/* The following are defined in linux/sched.h, which unfortunately */
|
|
/* is not safe for inclusion in an assembly file. */
|
|
#define CLONE_VM 0x00000100 /* set if VM shared between processes */
|
|
#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
|
|
|
|
/* pid_t vfork(void); */
|
|
/* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */
|
|
|
|
ENTRY(__vfork)
|
|
#ifdef SHARED
|
|
addl r14 = @gprel(__libc_pthread_functions#), gp;;
|
|
#else
|
|
.weak pthread_create
|
|
addl r14 = @ltoff(@fptr(pthread_create#)), gp;;
|
|
#endif
|
|
ld8 r14 = [r14];;
|
|
cmp.ne p6, p7 = 0, r14
|
|
(p6) br.cond.spnt.few HIDDEN_JUMPTARGET (__fork);;
|
|
alloc r2=ar.pfs,0,0,2,0
|
|
mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD
|
|
mov out1=0 /* Standard sp value. */
|
|
;;
|
|
DO_CALL (SYS_ify (clone))
|
|
cmp.eq p6,p0=-1,r10
|
|
;;
|
|
(p6) br.cond.spnt.few __syscall_error
|
|
ret
|
|
PSEUDO_END(__vfork)
|
|
libc_hidden_def (__vfork)
|
|
|
|
weak_alias (__vfork, vfork)
|