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 _SYS_CCOMPILE_H 28 #define _SYS_CCOMPILE_H 29 30 /* 31 * This file contains definitions designed to enable different compilers 32 * to be used harmoniously on Solaris systems. 33 */ 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 /* 40 * Allow for version tests for compiler bugs and features. 41 */ 42 #if defined(__GNUC__) 43 #define __GNUC_VERSION \ 44 (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) 45 #else 46 #define __GNUC_VERSION 0 47 #endif 48 49 #if defined(__ATTRIBUTE_IMPLEMENTED) || defined(__GNUC__) 50 51 /* 52 * analogous to lint's PRINTFLIKEn 53 */ 54 #define __sun_attr___PRINTFLIKE__(__n) \ 55 __attribute__((__format__(printf, __n, (__n)+1))) 56 #define __sun_attr___VPRINTFLIKE__(__n) \ 57 __attribute__((__format__(printf, __n, 0))) 58 59 /* 60 * Handle the kernel printf routines that can take '%b' too 61 */ 62 #if __GNUC_VERSION < 30402 63 /* 64 * XX64 at least this doesn't work correctly yet with 3.4.1 anyway! 65 */ 66 #define __sun_attr___KPRINTFLIKE__ __sun_attr___PRINTFLIKE__ 67 #define __sun_attr___KVPRINTFLIKE__ __sun_attr___VPRINTFLIKE__ 68 #else 69 #define __sun_attr___KPRINTFLIKE__(__n) \ 70 __attribute__((__format__(cmn_err, __n, (__n)+1))) 71 #define __sun_attr___KVPRINTFLIKE__(__n) \ 72 __attribute__((__format__(cmn_err, __n, 0))) 73 #endif 74 75 /* 76 * This one's pretty obvious -- the function never returns 77 */ 78 #define __sun_attr___noreturn__ __attribute__((__noreturn__)) 79 80 /* 81 * The function is 'extern inline' and expects GNU C89 behaviour, not C99 82 * behaviour. 83 * 84 * Should only be used on 'extern inline' definitions for GCC. 85 */ 86 #if __GNUC_VERSION >= 40200 87 #define __sun_attr___gnu_inline__ __attribute__((__gnu_inline__)) 88 #else 89 #define __sun_attr___gnu_inline__ 90 #endif 91 92 /* 93 * The function has control flow such that it may return multiple times (in 94 * the manner of setjmp or vfork) 95 */ 96 #if __GNUC_VERSION >= 40100 97 #define __sun_attr___returns_twice__ __attribute__((__returns_twice__)) 98 #else 99 #define __sun_attr___returns_twice__ 100 #endif 101 102 /* 103 * This is an appropriate label for functions that do not 104 * modify their arguments, e.g. strlen() 105 */ 106 #define __sun_attr___pure__ __attribute__((__pure__)) 107 108 /* 109 * This is a stronger form of __pure__. Can be used for functions 110 * that do not modify their arguments and don't depend on global 111 * memory. 112 */ 113 #define __sun_attr___const__ __attribute__((__const__)) 114 115 /* 116 * structure packing like #pragma pack(1) 117 */ 118 #define __sun_attr___packed__ __attribute__((__packed__)) 119 120 #define ___sun_attr_inner(__a) __sun_attr_##__a 121 #define __sun_attr__(__a) ___sun_attr_inner __a 122 123 #else /* __ATTRIBUTE_IMPLEMENTED || __GNUC__ */ 124 125 #define __sun_attr__(__a) 126 127 #endif /* __ATTRIBUTE_IMPLEMENTED || __GNUC__ */ 128 129 /* 130 * Shorthand versions for readability 131 */ 132 133 #define __PRINTFLIKE(__n) __sun_attr__((__PRINTFLIKE__(__n))) 134 #define __VPRINTFLIKE(__n) __sun_attr__((__VPRINTFLIKE__(__n))) 135 #define __KPRINTFLIKE(__n) __sun_attr__((__KPRINTFLIKE__(__n))) 136 #define __KVPRINTFLIKE(__n) __sun_attr__((__KVPRINTFLIKE__(__n))) 137 #define __NORETURN __sun_attr__((__noreturn__)) 138 #define __GNU_INLINE __inline__ __sun_attr__((__gnu_inline__)) 139 #define __RETURNS_TWICE __sun_attr__((__returns_twice__)) 140 #define __CONST __sun_attr__((__const__)) 141 #define __PURE __sun_attr__((__pure__)) 142 #define __GNU_UNUSED __attribute__((__unused__)) 143 144 #ifdef __cplusplus 145 } 146 #endif 147 148 #endif /* _SYS_CCOMPILE_H */ 149