_spinlock_stub.c revision 278751
1146773Ssam/* 2146773Ssam * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>. 3146773Ssam * All rights reserved. 4146773Ssam * 5146773Ssam * Redistribution and use in source and binary forms, with or without 6146773Ssam * modification, are permitted provided that the following conditions 7146773Ssam * are met: 8146773Ssam * 1. Redistributions of source code must retain the above copyright 9146773Ssam * notice, this list of conditions and the following disclaimer. 10146773Ssam * 2. Redistributions in binary form must reproduce the above copyright 11146773Ssam * notice, this list of conditions and the following disclaimer in the 12146773Ssam * documentation and/or other materials provided with the distribution. 13146773Ssam * 3. Neither the name of the author nor the names of any co-contributors 14146773Ssam * may be used to endorse or promote products derived from this software 15146773Ssam * without specific prior written permission. 16146773Ssam * 17146773Ssam * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 18146773Ssam * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19146773Ssam * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20146773Ssam * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21146773Ssam * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22146773Ssam * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23146773Ssam * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24146773Ssam * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25146773Ssam * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26146773Ssam * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27146773Ssam * SUCH DAMAGE. 28146773Ssam */ 29146773Ssam 30146773Ssam#include <sys/cdefs.h> 31146773Ssam__FBSDID("$FreeBSD: head/lib/libc/gen/_spinlock_stub.c 278751 2015-02-14 11:47:40Z kib $"); 32146773Ssam 33146773Ssam#include <stdio.h> 34146773Ssam 35146773Ssam#include "spinlock.h" 36146773Ssam#include "libc_private.h" 37146773Ssam 38146773Ssamlong _atomic_lock_stub(volatile long *); 39146773Ssamvoid _spinlock_stub(spinlock_t *); 40146773Ssamvoid _spinunlock_stub(spinlock_t *); 41235530Sdelphijvoid _spinlock_debug_stub(spinlock_t *, char *, int); 42146773Ssam 43146773Ssam__weak_reference(_atomic_lock_stub, _atomic_lock); 44146773Ssam 45146773Ssamlong 46146773Ssam_atomic_lock_stub(volatile long *lck __unused) 47146773Ssam{ 48146773Ssam return (0L); 49146773Ssam} 50146773Ssam 51146773Ssam__weak_reference(_spinlock, _spinlock_debug); 52146773Ssam#pragma weak _spinlock 53146773Ssamvoid 54146773Ssam_spinlock(spinlock_t *lck) 55146773Ssam{ 56235530Sdelphij 57146773Ssam ((void (*)(spinlock_t *lck))__libc_interposing[INTERPOS_spinlock]) 58146773Ssam (lck); 59146773Ssam 60146773Ssam} 61146773Ssam 62146773Ssam#pragma weak _spinlock 63146773Ssamvoid 64146773Ssam_spinunlock(spinlock_t *lck) 65146773Ssam{ 66146773Ssam 67146773Ssam ((void (*)(spinlock_t *lck))__libc_interposing[INTERPOS_spinunlock]) 68146773Ssam (lck); 69146773Ssam 70146773Ssam} 71146773Ssam 72146773Ssamvoid 73146773Ssam__libc_spinlock_stub(spinlock_t *lck __unused) 74146773Ssam{ 75146773Ssam} 76146773Ssam 77146773Ssamvoid 78146773Ssam__libc_spinunlock_stub(spinlock_t *lck __unused) 79146773Ssam{ 80146773Ssam} 81146773Ssam