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- /* 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, see
- <http://www.gnu.org/licenses/>. */
- #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)
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