sysdeps/unix/mips/wait.S

   1 /* Copyright (C) 1992, 1994, 1995, 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Brendan Kehoe (brendan@zen.org).
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <sysdep.h>
  21
  22 .set noreorder
  23
  24 ENTRY(__wait)
  25         /* Prep it for wait.  */
  26         move a1, zero
  27         move a2, zero
  28
  29         li v0, SYS_wait
  30         syscall
  31         beqz a3, noerror
  32         nop
  33         j __syscall_error
  34         nop
  35
  36 noerror:
  37         /* If the arg is not NULL, store v1 there.  */
  38         beqz a0, noarg
  39         nop
  40         sw v1, 0(a0)
  41         nop
  42 noarg:
  43         ret
  44         .end __wait
  45
  46 weak_alias (__wait, wait)