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lockdebug.h
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lockdebug.h
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/* $NetBSD: lockdebug.h,v 1.2.4.6 2008/01/21 09:47:52 yamt Exp $ */
/*-
* Copyright (c) 2006, 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef __SYS_LOCKDEBUG_H__
#define __SYS_LOCKDEBUG_H__
#ifdef _KERNEL_OPT
#include "opt_lockdebug.h"
#endif
#ifndef _KERNEL
#error "Sorry, nothing of interest to user level programs here."
#endif
typedef struct lockops {
const char *lo_name;
int lo_sleeplock;
void (*lo_dump)(volatile void *);
} lockops_t;
#define LOCKDEBUG_ABORT(l, o, f, m) lockdebug_abort(l, o, f, m)
void lockdebug_abort(volatile void *, lockops_t *,
const char *, const char *);
void lockdebug_lock_print(void *, void (*)(const char *, ...));
#ifdef LOCKDEBUG
bool lockdebug_alloc(volatile void *, lockops_t *, uintptr_t);
void lockdebug_free(volatile void *);
void lockdebug_wantlock(volatile void *, uintptr_t, int);
void lockdebug_locked(volatile void *, uintptr_t, int);
void lockdebug_unlocked(volatile void *, uintptr_t, int);
void lockdebug_barrier(volatile void *, int);
void lockdebug_mem_check(const char *, void *, size_t);
#define LOCKDEBUG_ALLOC(lock, ops, addr) lockdebug_alloc(lock, ops, addr)
#define LOCKDEBUG_FREE(dodebug, lock) \
if (dodebug) lockdebug_free(lock)
#define LOCKDEBUG_WANTLOCK(dodebug, lock, where, s) \
if (dodebug) lockdebug_wantlock(lock, where, s)
#define LOCKDEBUG_LOCKED(dodebug, lock, where, s) \
if (dodebug) lockdebug_locked(lock, where, s)
#define LOCKDEBUG_UNLOCKED(dodebug, lock, where, s) \
if (dodebug) lockdebug_unlocked(lock, where, s)
#define LOCKDEBUG_BARRIER(lock, slp) lockdebug_barrier(lock, slp)
#define LOCKDEBUG_MEM_CHECK(base, sz) \
lockdebug_mem_check(__func__, base, sz)
#else /* LOCKDEBUG */
#define LOCKDEBUG_ALLOC(lock, ops, addr) false
#define LOCKDEBUG_FREE(dodebug, lock) /* nothing */
#define LOCKDEBUG_WANTLOCK(dodebug, lock, where, s) /* nothing */
#define LOCKDEBUG_LOCKED(dodebug, lock, where, s) /* nothing */
#define LOCKDEBUG_UNLOCKED(dodebug, lock, where, s) /* nothing */
#define LOCKDEBUG_BARRIER(lock, slp) /* nothing */
#define LOCKDEBUG_MEM_CHECK(base, sz) /* nothing */
#endif /* LOCKDEBUG */
#endif /* __SYS_LOCKDEBUG_H__ */