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 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 31 #ifndef _SYS_DEBUG_H 32 #define _SYS_DEBUG_H 33 34 #pragma ident "%Z%%M% %I% %E% SMI" 35 36 #include <sys/isa_defs.h> 37 #include <sys/types.h> 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /* 44 * ASSERT(ex) causes a panic or debugger entry if expression ex is not 45 * true. ASSERT() is included only for debugging, and is a no-op in 46 * production kernels. VERIFY(ex), on the other hand, behaves like 47 * ASSERT and is evaluated on both debug and non-debug kernels. 48 */ 49 50 #if defined(__STDC__) 51 extern int assfail(const char *, const char *, int); 52 #define VERIFY(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__))) 53 #if DEBUG 54 #define ASSERT(EX) VERIFY(EX) 55 #else 56 #define ASSERT(x) ((void)0) 57 #endif 58 #else /* defined(__STDC__) */ 59 extern int assfail(); 60 #define VERIFY(EX) ((void)((EX) || assfail("EX", __FILE__, __LINE__))) 61 #if DEBUG 62 #define ASSERT(EX) VERIFY(EX) 63 #else 64 #define ASSERT(x) ((void)0) 65 #endif 66 #endif /* defined(__STDC__) */ 67 68 /* 69 * Assertion variants sensitive to the compilation data model 70 */ 71 #if defined(_LP64) 72 #define ASSERT64(x) ASSERT(x) 73 #define ASSERT32(x) 74 #else 75 #define ASSERT64(x) 76 #define ASSERT32(x) ASSERT(x) 77 #endif 78 79 /* 80 * ASSERT3() behaves like ASSERT() except that it is an explicit conditional, 81 * and prints out the values of the left and right hand expressions as part of 82 * the panic message to ease debugging. The three variants imply the type 83 * of their arguments. ASSERT3S() is for signed data types, ASSERT3U() is 84 * for unsigned, and ASSERT3P() is for pointers. The VERIFY3*() macros 85 * have the same relationship as above. 86 */ 87 extern void assfail3(const char *, uintmax_t, const char *, uintmax_t, 88 const char *, int); 89 #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ 90 const TYPE __left = (TYPE)(LEFT); \ 91 const TYPE __right = (TYPE)(RIGHT); \ 92 if (!(__left OP __right)) \ 93 assfail3(#LEFT " " #OP " " #RIGHT, \ 94 (uintmax_t)__left, #OP, (uintmax_t)__right, \ 95 __FILE__, __LINE__); \ 96 _NOTE(CONSTCOND) } while (0) 97 98 #define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) 99 #define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) 100 #define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) 101 #if DEBUG 102 #define ASSERT3S(x, y, z) VERIFY3S(x, y, z) 103 #define ASSERT3U(x, y, z) VERIFY3U(x, y, z) 104 #define ASSERT3P(x, y, z) VERIFY3P(x, y, z) 105 #else 106 #define ASSERT3S(x, y, z) ((void)0) 107 #define ASSERT3U(x, y, z) ((void)0) 108 #define ASSERT3P(x, y, z) ((void)0) 109 #endif 110 111 #ifdef _KERNEL 112 113 extern void abort_sequence_enter(char *); 114 extern void debug_enter(char *); 115 116 #endif /* _KERNEL */ 117 118 #if defined(DEBUG) && !defined(__sun) 119 /* CSTYLED */ 120 #define STATIC 121 #else 122 /* CSTYLED */ 123 #define STATIC static 124 #endif 125 126 #ifdef __cplusplus 127 } 128 #endif 129 130 #endif /* _SYS_DEBUG_H */ 131