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21a7fd75c3
info. This turned out to be rather useful on ia64 for tracking down malloc/free problems. Detect duplicate free()'s - otherwise these show up as a guard1 failure and it looks like corruption instead of something simple like a second free() where there shouldn't be. Deal with libz using libc headers and not seeing the malloc/free stuff that we provide in libstand. Do similar nastiness to what is done for bzlib. Tested on: i386, ia64 (compile, run)
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/*
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* This module derived from code donated to the FreeBSD Project by
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* Matthew Dillon <dillon@backplane.com>
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*
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* Copyright (c) 1998 The FreeBSD Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* DEFS.H
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*/
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#define USEGUARD /* use stard/end guard bytes */
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#if !defined(__powerpc__)
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#define USEENDGUARD
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#endif
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#define DMALLOCDEBUG /* add debugging code to gather stats */
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#define ZALLOCDEBUG
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#include <string.h>
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#include "stand.h"
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#ifdef __i386__
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typedef unsigned int iaddr_t; /* unsigned int same size as pointer */
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typedef int saddr_t; /* signed int same size as pointer */
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#endif
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#ifdef __alpha__
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typedef unsigned long iaddr_t; /* unsigned int same size as pointer */
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typedef long saddr_t; /* signed int same size as pointer */
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#endif
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#ifdef __powerpc__
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typedef unsigned int iaddr_t; /* unsigned int same size as pointer */
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typedef int saddr_t; /* signed int same size as pointer */
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#endif
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#ifdef __ia64__
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typedef unsigned long iaddr_t; /* unsigned int same size as pointer */
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typedef long saddr_t; /* signed int same size as pointer */
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#endif
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#ifdef __sparc64__
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typedef unsigned long iaddr_t; /* unsigned long same size as pointer */
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typedef long saddr_t; /* signed long same size as pointer */
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#endif
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#include "zalloc_mem.h"
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#define Prototype extern
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#define Library extern
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#ifndef NULL
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#define NULL ((void *)0)
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#endif
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/*
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* block extension for sbrk()
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*/
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#define BLKEXTEND (4 * 1024)
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#define BLKEXTENDMASK (BLKEXTEND - 1)
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/*
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* required malloc alignment. Use sizeof(long double) for architecture
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* independance.
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*
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* Note: if we implement a more sophisticated realloc, we should ensure that
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* MALLOCALIGN is at least as large as MemNode.
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*/
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typedef struct Guard {
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size_t ga_Bytes;
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size_t ga_Magic; /* must be at least 32 bits */
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} Guard;
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#define MATYPE long double
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#define MALLOCALIGN ((sizeof(MATYPE) > sizeof(Guard)) ? sizeof(MATYPE) : sizeof(Guard))
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#define GAMAGIC 0x55FF44FD
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#define GAFREE 0x5F54F4DF
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#include "zalloc_protos.h"
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