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 30 /* 31 * DEFS.H 32 */ 33 34 #ifndef _ZALLOC_DEFS_H 35 #define _ZALLOC_DEFS_H 36 37 #define USEGUARD /* use stard/end guard bytes */ 38 #define USEENDGUARD 39 #define DMALLOCDEBUG /* add debugging code to gather stats */ 40 #define ZALLOCDEBUG 41 42 #include <sys/stdint.h> 43 #include "stand.h" 44 #include "zalloc_mem.h" 45 46 #define Library extern 47 48 /* 49 * block extension for sbrk() 50 */ 51 52 #define BLKEXTEND (4 * 1024) 53 #define BLKEXTENDMASK (BLKEXTEND - 1) 54 55 /* 56 * Required malloc alignment. 57 * 58 * Embedded platforms using the u-boot API drivers require that all I/O buffers 59 * be on a cache line sized boundary. The worst case size for that is 64 bytes. 60 * For other platforms, 16 bytes works fine. The alignment also must be at 61 * least sizeof(struct MemNode); this is asserted in zalloc.c. 62 */ 63 64 #if defined(__arm__) || defined(__powerpc__) 65 #define MALLOCALIGN 64 66 #else 67 #define MALLOCALIGN 16 68 #endif 69 #define MALLOCALIGN_MASK (MALLOCALIGN - 1) 70 71 typedef struct Guard { 72 size_t ga_Bytes; 73 size_t ga_Magic; /* must be at least 32 bits */ 74 } Guard; 75 76 #define GAMAGIC 0x55FF44FD 77 #define GAFREE 0x5F54F4DF 78 79 #include "zalloc_protos.h" 80 81 #endif /* _ZALLOC_DEFS_H */ 82