/* Copyright (C) 2002,2003,2004 Free Software Foundation, Inc.   This file is part of the GNU C Library.   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.   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 "pthreadP.h"#ifndef LOCK_PREFIX# ifdef UP#  define LOCK_PREFIX	/* nothing */# else#  define LOCK_PREFIX	"lock;"# endif#endifintpthread_spin_lock (lock)     pthread_spinlock_t *lock;{  asm ("\n"       "1:\t" LOCK_PREFIX "decl %0\n\t"       "jne 2f\n\t"       ".subsection 1\n\t"       ".align 16\n"       "2:\trep; nop\n\t"       "cmpl $0, %0\n\t"       "jg 1b\n\t"       "jmp 2b\n\t"       ".previous"       : "=m" (*lock)       : "m" (*lock));  return 0;}