sysdeps/i386/nptl/pthread_spin_unlock.S

   1 /* Copyright (C) 2002-2020 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20
  21 ENTRY (pthread_spin_unlock)
  22         movl    4(%esp), %eax
  23         movl    $1, (%eax)
  24         xorl    %eax, %eax
  25         ret
  26 END (pthread_spin_unlock)
  27
  28         /* The implementation of pthread_spin_init is identical.  */
  29         .globl  pthread_spin_init
  30 pthread_spin_init = pthread_spin_unlock