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Diffstat (limited to 'lib/libc/gen/_spinlock_stub.c')
-rw-r--r-- | lib/libc/gen/_spinlock_stub.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/lib/libc/gen/_spinlock_stub.c b/lib/libc/gen/_spinlock_stub.c new file mode 100644 index 0000000..fddfc1b --- /dev/null +++ b/lib/libc/gen/_spinlock_stub.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <stdio.h> + +#include "spinlock.h" +#include "libc_private.h" + +long _atomic_lock_stub(volatile long *); +void _spinlock_stub(spinlock_t *); +void _spinunlock_stub(spinlock_t *); +void _spinlock_debug_stub(spinlock_t *, char *, int); + +__weak_reference(_atomic_lock_stub, _atomic_lock); + +long +_atomic_lock_stub(volatile long *lck __unused) +{ + return (0L); +} + +__weak_reference(_spinlock, _spinlock_debug); +#pragma weak _spinlock +void +_spinlock(spinlock_t *lck) +{ + + ((void (*)(spinlock_t *lck))__libc_interposing[INTERPOS_spinlock]) + (lck); + +} + +#pragma weak _spinlock +void +_spinunlock(spinlock_t *lck) +{ + + ((void (*)(spinlock_t *lck))__libc_interposing[INTERPOS_spinunlock]) + (lck); + +} + +void +__libc_spinlock_stub(spinlock_t *lck __unused) +{ +} + +void +__libc_spinunlock_stub(spinlock_t *lck __unused) +{ +} |