| | 1 | /* |
| | 2 | * Copyright (c) 1991, 1993 |
| | 3 | * The Regents of the University of California. All rights reserved. |
| | 4 | * |
| | 5 | * This code is derived from software contributed to Berkeley by |
| | 6 | * Berkeley Software Design, Inc. |
| | 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 | * 3. All advertising materials mentioning features or use of this software |
| | 17 | * must display the following acknowledgement: |
| | 18 | * This product includes software developed by the University of |
| | 19 | * California, Berkeley and its contributors. |
| | 20 | * 4. Neither the name of the University nor the names of its contributors |
| | 21 | * may be used to endorse or promote products derived from this software |
| | 22 | * without specific prior written permission. |
| | 23 | * |
| | 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| | 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| | 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 34 | * SUCH DAMAGE. |
| | 35 | * |
| | 36 | * @(#)cdefs.h 8.8 (Berkeley) 1/9/95 |
| | 37 | * $FreeBSD: /repoman/r/ncvs/src/sys/sys/cdefs.h,v 1.68 2002/10/21 20:50:30 mike Exp $ |
| | 38 | */ |
| | 39 | |
| | 40 | #ifndef _SYS_CDEFS_H_ |
| | 41 | |
| | 42 | /* |
| | 43 | * Compiler-dependent macros to help declare dead (non-returning) and |
| | 44 | * pure (no side effects) functions, and unused variables. They are |
| | 45 | * null except for versions of gcc that are known to support the features |
| | 46 | * properly (old versions of gcc-2 supported the dead and pure features |
| | 47 | * in a different (wrong) way). If we do not provide an implementation |
| | 48 | * for a given compiler, let the compile fail if it is told to use |
| | 49 | * a feature that we cannot live without. |
| | 50 | */ |
| | 51 | #ifdef lint |
| | 52 | #define __packed |
| | 53 | #define __aligned(x) |
| | 54 | #define __section(x) |
| | 55 | #else |
| | 56 | #define __packed __attribute__((__packed__)) |
| | 57 | #define __aligned(x) __attribute__((__aligned__(x))) |
| | 58 | #define __section(x) __attribute__((__section__(x))) |
| | 59 | #endif |
| | 60 | |
| | 61 | #if !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901 |
| | 62 | #define __LONG_LONG_SUPPORTED |
| | 63 | #endif |
| | 64 | |
| | 65 | /* |
| | 66 | * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h> |
| | 67 | * require it. |
| | 68 | */ |
| | 69 | #define __strong_reference(sym,aliassym) \ |
| | 70 | extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym))); |
| | 71 | #define __weak_reference(sym,alias) |
| | 72 | #define __warn_references(sym,msg) |
| | 73 | |
| | 74 | #ifndef __RCSID_SOURCE |
| | 75 | #ifndef NO__RCSID_SOURCE |
| | 76 | #define __RCSID_SOURCE(s) __IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s) |
| | 77 | #else |
| | 78 | #define __RCSID_SOURCE(s) |
| | 79 | #endif |
| | 80 | #endif |
| | 81 | |
| | 82 | #ifndef __DECONST |
| | 83 | #define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var)) |
| | 84 | #endif |
| | 85 | |
| | 86 | #ifndef __DEVOLATILE |
| | 87 | #define __DEVOLATILE(type, var) ((type)(uintptr_t)(volatile void *)(var)) |
| | 88 | #endif |
| | 89 | |
| | 90 | #ifndef __DEQUALIFY |
| | 91 | #define __DEQUALIFY(type, var) ((type)(uintptr_t)(const volatile void *)(var)) |
| | 92 | #endif |
| | 93 | |
| | 94 | /* |
| | 95 | * Now include the Apple version of sys/cdefs.h |
| | 96 | */ |
| | 97 | |
| | 98 | #include_next <sys/cdefs.h> |
| | 99 | |
| | 100 | /* |
| | 101 | * Use FreeBSD version of __CONCAT |
| | 102 | */ |
| | 103 | #if defined(__STDC__) || defined(__cplusplus) |
| | 104 | #undef __CONCAT1 |
| | 105 | #undef __CONCAT |
| | 106 | #define __CONCAT1(x,y) x ## y |
| | 107 | #define __CONCAT(x,y) __CONCAT1(x,y) |
| | 108 | #endif |
| | 109 | |
| | 110 | /* |
| | 111 | * Deal with all versions of POSIX. The ordering relative to the tests above is |
| | 112 | * important. |
| | 113 | */ |
| | 114 | #ifdef _POSIX_C_SOURCE |
| | 115 | #if _POSIX_C_SOURCE >= 200112 |
| | 116 | #define __POSIX_VISIBLE 200112 |
| | 117 | #define __ISO_C_VISIBLE 1999 |
| | 118 | #elif _POSIX_C_SOURCE >= 199506 |
| | 119 | #define __POSIX_VISIBLE 199506 |
| | 120 | #define __ISO_C_VISIBLE 1990 |
| | 121 | #elif _POSIX_C_SOURCE >= 199309 |
| | 122 | #define __POSIX_VISIBLE 199309 |
| | 123 | #define __ISO_C_VISIBLE 1990 |
| | 124 | #elif _POSIX_C_SOURCE >= 199209 |
| | 125 | #define __POSIX_VISIBLE 199209 |
| | 126 | #define __ISO_C_VISIBLE 1990 |
| | 127 | #elif _POSIX_C_SOURCE >= 199009 |
| | 128 | #define __POSIX_VISIBLE 199009 |
| | 129 | #define __ISO_C_VISIBLE 1990 |
| | 130 | #else |
| | 131 | #define __POSIX_VISIBLE 198808 |
| | 132 | #define __ISO_C_VISIBLE 0 |
| | 133 | #endif /* _POSIX_C_SOURCE */ |
| | 134 | #else |
| | 135 | /*- |
| | 136 | * Deal with _ANSI_SOURCE: |
| | 137 | * If it is defined, and no other compilation environment is explicitly |
| | 138 | * requested, then define our internal feature-test macros to zero. This |
| | 139 | * makes no difference to the preprocessor (undefined symbols in preprocessing |
| | 140 | * expressions are defined to have value zero), but makes it more convenient for |
| | 141 | * a test program to print out the values. |
| | 142 | * |
| | 143 | * If a program mistakenly defines _ANSI_SOURCE and some other macro such as |
| | 144 | * _POSIX_C_SOURCE, we will assume that it wants the broader compilation |
| | 145 | * environment (and in fact we will never get here). |
| | 146 | */ |
| | 147 | #if defined(_ANSI_SOURCE) /* Hide almost everything. */ |
| | 148 | #define __POSIX_VISIBLE 0 |
| | 149 | #define __XSI_VISIBLE 0 |
| | 150 | #define __BSD_VISIBLE 0 |
| | 151 | #define __ISO_C_VISIBLE 1990 |
| | 152 | #elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */ |
| | 153 | #define __POSIX_VISIBLE 0 |
| | 154 | #define __XSI_VISIBLE 0 |
| | 155 | #define __BSD_VISIBLE 0 |
| | 156 | #define __ISO_C_VISIBLE 1999 |
| | 157 | #else /* Default environment: show everything. */ |
| | 158 | #define __POSIX_VISIBLE 200112 |
| | 159 | #define __XSI_VISIBLE 600 |
| | 160 | #define __BSD_VISIBLE 1 |
| | 161 | #define __ISO_C_VISIBLE 1999 |
| | 162 | #endif |
| | 163 | #endif |
| | 164 | |
| | 165 | #endif /* !_SYS_CDEFS_H_ */ |
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