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cd2fbe58e6
2003-08-31 Ulrich Drepper <drepper@redhat.com> * sysdeps/x86_64/bsd-_setjmp.S: Use HIDDEN_JUMPTARGET. * include/setjmp.h: Add libc_hidden_proto for __sigsetjmp. (CFLAGS-clnt_perr.c): Likewise.
31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
/* pthread_spin_unlock -- unlock a spin lock. Generic version.
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Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include "pthreadP.h"
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#include <atomic.h>
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int
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pthread_spin_unlock (pthread_spinlock_t *lock)
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{
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__asm __volatile ("membar #StoreStore | #LoadStore");
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*lock = 0;
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return 0;
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}
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