1 | /* |
2 | * Copyright (c) 2000-2016 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * @OSF_COPYRIGHT@ |
30 | */ |
31 | /* |
32 | * Mach Operating System |
33 | * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University |
34 | * All Rights Reserved. |
35 | * |
36 | * Permission to use, copy, modify and distribute this software and its |
37 | * documentation is hereby granted, provided that both the copyright |
38 | * notice and this permission notice appear in all copies of the |
39 | * software, derivative works or modified versions, and any portions |
40 | * thereof, and that both notices appear in supporting documentation. |
41 | * |
42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
45 | * |
46 | * Carnegie Mellon requests users of this software to return to |
47 | * |
48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
49 | * School of Computer Science |
50 | * Carnegie Mellon University |
51 | * Pittsburgh PA 15213-3890 |
52 | * |
53 | * any improvements or extensions that they make and grant Carnegie Mellon |
54 | * the rights to redistribute these changes. |
55 | */ |
56 | /* |
57 | */ |
58 | |
59 | #ifndef _KERN_ASSERT_H_ |
60 | #define _KERN_ASSERT_H_ |
61 | |
62 | /* assert.h 4.2 85/01/21 */ |
63 | |
64 | #include <kern/macro_help.h> |
65 | #include <sys/cdefs.h> |
66 | |
67 | #ifdef MACH_KERNEL_PRIVATE |
68 | #include <mach_assert.h> |
69 | #endif |
70 | |
71 | __BEGIN_DECLS |
72 | /* Assert error */ |
73 | extern void Assert( |
74 | const char *file, |
75 | int line, |
76 | const char *expression) __attribute__((noinline)); |
77 | |
78 | extern int kext_assertions_enable; |
79 | |
80 | #define __Panic(fmt, args...) panic(fmt, ##args) |
81 | |
82 | __END_DECLS |
83 | |
84 | #ifndef APPLE_KEXT_ASSERTIONS |
85 | #define APPLE_KEXT_ASSERTIONS 0 |
86 | #endif |
87 | |
88 | #if MACH_ASSERT |
89 | |
90 | #define assert(ex) \ |
91 | (__builtin_expect(!!((ex)), 1L) ? (void)0 : Assert(__FILE__, __LINE__, # ex)) |
92 | #define assertf(ex, fmt, args...) \ |
93 | (__builtin_expect(!!((ex)), 1L) ? (void)0 : __Panic("%s:%d Assertion failed: %s : " fmt, __FILE__, __LINE__, # ex, ##args)) |
94 | #define __assert_only |
95 | |
96 | #elif APPLE_KEXT_ASSERTIONS && !XNU_KERNEL_PRIVATE /* MACH_ASSERT */ |
97 | |
98 | #define assert(ex) \ |
99 | (__builtin_expect(!!(((!kext_assertions_enable) || (ex))), 1L) ? (void)0 : Assert(__FILE__, __LINE__, # ex)) |
100 | #define assertf(ex, fmt, args...) \ |
101 | (__builtin_expect(!!(((!kext_assertions_enable) || (ex))), 1L) ? (void)0 : __Panic("%s:%d Assertion failed: %s : " fmt, __FILE__, __LINE__, # ex, ##args)) |
102 | #define __assert_only |
103 | |
104 | #else /* APPLE_KEXT_ASSERTIONS && !XNU_KERNEL_PRIVATE */ |
105 | |
106 | #define assert(ex) ((void)0) |
107 | #define assertf(ex, fmt, args...) ((void)0) |
108 | #define __assert_only __unused |
109 | |
110 | #endif /* MACH_ASSERT */ |
111 | |
112 | /* |
113 | * static_assert is a C11 / C++0x / C++1z feature. |
114 | * |
115 | * Beginning with C++0x, it is a keyword and should not be #defined |
116 | * |
117 | * static_assert is not disabled by MACH_ASSERT or NDEBUG |
118 | */ |
119 | |
120 | #ifndef __cplusplus |
121 | #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L |
122 | #define _STATIC_ASSERT_OVERLOADED_MACRO(_1, _2, NAME, ...) NAME |
123 | #define static_assert(...) _STATIC_ASSERT_OVERLOADED_MACRO(__VA_ARGS__, _static_assert_2_args, _static_assert_1_arg)(__VA_ARGS__) |
124 | |
125 | #define _static_assert_2_args(ex, str) _Static_assert((ex), str) |
126 | #define _static_assert_1_arg(ex) _Static_assert((ex), #ex) |
127 | #endif |
128 | #else |
129 | #if !defined(__cpp_static_assert) |
130 | /* pre C++11 support */ |
131 | #define _STATIC_ASSERT_OVERLOADED_MACRO(_1, _2, NAME, ...) NAME |
132 | #define static_assert(...) _STATIC_ASSERT_OVERLOADED_MACRO(__VA_ARGS__, _static_assert_2_args, _static_assert_1_arg)(__VA_ARGS__) |
133 | |
134 | #define _static_assert_2_args(ex, str) _Static_assert((ex), str) |
135 | #define _static_assert_1_arg(ex) _Static_assert((ex), #ex) |
136 | #else |
137 | /* |
138 | * C++11 only supports the 2 argument version of static_assert. |
139 | * C++1z has added support for the 1 argument version. |
140 | */ |
141 | #define _static_assert_1_arg(ex) static_assert((ex), #ex) |
142 | #endif |
143 | #endif |
144 | |
145 | #endif /* _KERN_ASSERT_H_ */ |
146 | |