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b01fe5f792
* sysdeps/sparc/sparc32/dl-machine.h (LD_SO_PRELOAD): Remove unused
define.
* sysdeps/sparc/sparc32/bits/atomic.h: Include stdint.h, add
{,u}atomic*_t typedefs.
(__sparc32_atomic_do_lock): Add __volatile and memory clobber.
(__sparc32_atomic_do_unlock): Add memory barrier.
(__sparc32_atomic_do_lock24, __sparc32_atomic_do_unlock24): Define.
[!SHARED] (__v9_compare_and_exchange_val_32_acq): Define.
(__v7_compare_and_exchange_val_acq, __v7_compare_and_exchange_bool_acq,
__v7_exchange_acq, __v7_exchange_and_add, __v7_exchange_24_rel,
__v7_compare_and_exchange_val_24_acq, __atomic_is_v9,
atomic_exchange_acq, atomic_compare_and_exchange_val_24_acq,
atomic_exchange_24_rel): Define.
[SHARED] (atomic_exchange_and_add): Define.
[!SHARED] (__ATOMIC_HWCAP_SPARC_V9): Define.
[!SHARED] (_dl_hwcap): New weak decl.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h (atomic_exchange_24_rel,
atomic_compare_and_exchange_val_24_acq): Define.
* sysdeps/sparc/sparc64/bits/atomic.h (atomic_exchange_24_rel,
atomic_compare_and_exchange_val_24_acq): Define.
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Copyright (C) 2002, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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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 <errno.h>
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#include <semaphore.h>
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#include <lowlevellock.h>
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#include <shlib-compat.h>
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#include "semaphoreP.h"
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struct sparc_sem
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{
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struct sem s;
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unsigned char lock;
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};
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int
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__new_sem_init (sem, pshared, value)
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sem_t *sem;
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int pshared;
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unsigned int value;
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{
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/* Parameter sanity check. */
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if (__builtin_expect (value > SEM_VALUE_MAX, 0))
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{
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__set_errno (EINVAL);
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return -1;
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}
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/* Map to the internal type. */
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struct sparc_sem *isem = (struct sparc_sem *) sem;
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/* Use the value the user provided. */
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isem->s.count = value;
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isem->lock = 0;
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/* We can completely ignore the PSHARED parameter since inter-process
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use needs no special preparation. */
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return 0;
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}
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versioned_symbol (libpthread, __new_sem_init, sem_init, GLIBC_2_1);
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#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
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strong_alias (__new_sem_init, __old_sem_init)
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compat_symbol (libpthread, __old_sem_init, sem_init, GLIBC_2_0);
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#endif
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