1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _MDB_UMEM_H 28 #define _MDB_UMEM_H 29 30 #include <sys/types.h> 31 #include <limits.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #ifdef _MDB 38 39 #define UMEM_FREE_PATTERN 0xdefacedd 40 #define UMEM_UNINITIALIZED_PATTERN 0xbeefbabe 41 42 typedef struct mdb_mblk mdb_mblk_t; 43 44 /* Aligned allocation/frees are not available through the module API */ 45 extern void *mdb_alloc_align(size_t, size_t, uint_t); 46 extern void mdb_free_align(void *, size_t); 47 48 extern void mdb_recycle(mdb_mblk_t **); 49 50 /* 51 * These values represent an attempt to help constrain dmods that have bugs and 52 * have accidentally underflowed their size arguments. They represent 53 * allocations that are impossible. 54 */ 55 #if defined(_ILP32) 56 #define MDB_ALLOC_MAX INT32_MAX 57 #elif defined(_LP64) 58 #define MDB_ALLOC_MAX INT64_MAX 59 #else 60 #error "Unknown data model" 61 #endif 62 63 64 #endif /* _MDB */ 65 66 #ifdef __cplusplus 67 } 68 #endif 69 70 #endif /* _MDB_UMEM_H */ 71