freebsd-nq/sys/vm/uma_dbg.h
Jeff Roberson 8f70816cf2 Hide a pointer to the malloc_type bucket at the end of the freed memory. If
this memory is modified after it has been freed we can now report it's
previous owner.
2002-05-02 09:07:04 +00:00

57 lines
2.1 KiB
C

/*
* Copyright (c) 2002, Jeffrey Roberson <jroberson@chesapeake.net>
* 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 unmodified, 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*
*/
/*
*
* Jeff Roberson <jroberson@chesapeake.net>
*
* This file includes definitions, structures, prototypes, and inlines used
* when debugging users of the UMA interface.
*
*/
#ifndef VM_UMA_DBG_H
#define VM_UMA_DBG_H
void trash_ctor(void *mem, int size, void *arg);
void trash_dtor(void *mem, int size, void *arg);
void trash_init(void *mem, int size);
void trash_fini(void *mem, int size);
/* For use only by malloc */
void mtrash_ctor(void *mem, int size, void *arg);
void mtrash_dtor(void *mem, int size, void *arg);
void mtrash_init(void *mem, int size);
void mtrash_fini(void *mem, int size);
void uma_dbg_free(uma_zone_t zone, uma_slab_t slab, void *item);
void uma_dbg_alloc(uma_zone_t zone, uma_slab_t slab, void *item);
#endif /* VM_UMA_DBG_H */