1 /* 2 * This module derived from code donated to the FreeBSD Project by 3 * Matthew Dillon <dillon@backplane.com> 4 * 5 * Copyright (c) 1998 The FreeBSD Project 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: stable/9/lib/libstand/zalloc_defs.h 223905 2011-07-10 07:25:34Z avatar $ 30 */ 31 32 /* 33 * DEFS.H 34 */ 35 36 #define USEGUARD /* use stard/end guard bytes */ 37 #define USEENDGUARD 38 #define DMALLOCDEBUG /* add debugging code to gather stats */ 39 #define ZALLOCDEBUG 40 41 #include <sys/stdint.h> 42 #include "stand.h" 43 #include "zalloc_mem.h" 44 45 #define Library extern 46 47 /* 48 * block extension for sbrk() 49 */ 50 51 #define BLKEXTEND (4 * 1024) 52 #define BLKEXTENDMASK (BLKEXTEND - 1) 53 54 /* 55 * required malloc alignment. Just hardwire to 16. 56 * 57 * Note: if we implement a more sophisticated realloc, we should ensure that 58 * MALLOCALIGN is at least as large as MemNode. 59 */ 60 61 typedef struct Guard { 62 size_t ga_Bytes; 63 size_t ga_Magic; /* must be at least 32 bits */ 64 } Guard; 65 66 #define MALLOCALIGN 16 67 #define GAMAGIC 0x55FF44FD 68 #define GAFREE 0x5F54F4DF 69 70 #include "zalloc_protos.h" 71