/* Copyright (C) 2003, 2004 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.h>#define _ERRNO_H	1#include <bits/errno.h>#include <tcb-offsets.h>/* Clone the calling process, but without copying the whole address space.   The calling process is suspended until the new process exits or is   replaced by a call to `execve'.  Return -1 for errors, 0 to the new process,   and the process ID of the new process to the old process.  */ENTRY (__vfork)	/* Save the PID value.  */	stc	gbr, r2	mov.w	.L2, r0	mov.l	@(r0,r2), r4	neg	r4, r1	mov.l	r1, @(r0,r2)	mov.w	.L1, r3	trapa	#0x10	mov     r0, r1	/* Restore the old PID value in the parent.  */	tst	r0, r0	bt/s	2f	 stc	gbr, r2	mov.w	.L2, r0	mov.l	r4, @(r0,r2)	mov	r1, r02:	mov	#-12, r2	shad	r2, r1	not	r1, r1			// r1=0 means r0 = -1 to -4095	tst	r1, r1			// i.e. error in linux	bf	.Lpseudo_end	SYSCALL_ERROR_HANDLER.Lpseudo_end:	rts	 nop.L1:	.word	__NR_vfork.L2:	.word	PID - TLS_PRE_TCB_SIZEPSEUDO_END (__vfork)libc_hidden_def (__vfork)weak_alias (__vfork, vfork)