wait.s

Glibc 2.3.2源代码(解压后有100多M)

/* Copyright (C) 1992, 1994, 1995, 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Brendan Kehoe ([e-mail]).

   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>

.set noreorder

ENTRY(__wait)
	/* Prep it for wait.  */
	move a1, zero
	move a2, zero

	li v0, SYS_wait
	syscall
	beqz a3, noerror
	nop
	j __syscall_error
	nop

noerror:
	/* If the arg is not NULL, store v1 there.  */
	beqz a0, noarg
	nop
	sw v1, 0(a0)
	nop
noarg:
	ret
	.end __wait

weak_alias (__wait, wait)