1 #ifndef foopulsegccmacrohfoo 2 #define foopulsegccmacrohfoo 3 4 /*** 5 This file is part of PulseAudio. 6 7 Copyright 2004-2006 Lennart Poettering 8 9 PulseAudio is free software; you can redistribute it and/or modify 10 it under the terms of the GNU Lesser General Public License as published 11 by the Free Software Foundation; either version 2.1 of the License, 12 or (at your option) any later version. 13 14 PulseAudio is distributed in the hope that it will be useful, but 15 WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 General Public License for more details. 18 19 You should have received a copy of the GNU Lesser General Public License 20 along with PulseAudio; if not, write to the Free Software 21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 22 USA. 23 ***/ 24 25 /** \file 26 * GCC attribute macros */ 27 28 #ifdef __GNUC__ 29 #define PA_GCC_PRINTF_ATTR(a,b) __attribute__ ((format (printf, a, b))) 30 #else 31 /** If we're in GNU C, use some magic for detecting invalid format strings */ 32 #define PA_GCC_PRINTF_ATTR(a,b) 33 #endif 34 35 #if defined(__GNUC__) && (__GNUC__ >= 4) 36 #define PA_GCC_SENTINEL __attribute__ ((sentinel)) 37 #else 38 /** Macro for usage of GCC's sentinel compilation warnings */ 39 #define PA_GCC_SENTINEL 40 #endif 41 42 #ifdef __GNUC__ 43 #define PA_GCC_NORETURN __attribute__((noreturn)) 44 #else 45 /** Macro for no-return functions */ 46 #define PA_GCC_NORETURN 47 #endif 48 49 #ifdef __GNUC__ 50 #define PA_GCC_UNUSED __attribute__ ((unused)) 51 #else 52 /** Macro for not used function, variable or parameter */ 53 #define PA_GCC_UNUSED 54 #endif 55 56 #ifdef __GNUC__ 57 #define PA_GCC_DESTRUCTOR __attribute__ ((destructor)) 58 #else 59 /** Call this function when process terminates */ 60 #define PA_GCC_DESTRUCTOR 61 #endif 62 63 #ifndef PA_GCC_PURE 64 #ifdef __GNUC__ 65 #define PA_GCC_PURE __attribute__ ((pure)) 66 #else 67 /** This function's return value depends only the arguments list and global state **/ 68 #define PA_GCC_PURE 69 #endif 70 #endif 71 72 #ifndef PA_GCC_CONST 73 #ifdef __GNUC__ 74 #define PA_GCC_CONST __attribute__ ((const)) 75 #else 76 /** This function's return value depends only the arguments list (stricter version of PA_GCC_PURE) **/ 77 #define PA_GCC_CONST 78 #endif 79 #endif 80 81 #ifndef PA_GCC_DEPRECATED 82 #ifdef __GNUC__ 83 #define PA_GCC_DEPRECATED __attribute__ ((deprecated)) 84 #else 85 /** This function is deprecated **/ 86 #define PA_GCC_DEPRECATED 87 #endif 88 #endif 89 90 #ifndef PA_GCC_PACKED 91 #ifdef __GNUC__ 92 #define PA_GCC_PACKED __attribute__ ((packed)) 93 #else 94 /** Structure shall be packed in memory **/ 95 #define PA_GCC_PACKED 96 #endif 97 #endif 98 99 #ifndef PA_GCC_ALLOC_SIZE 100 #if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3) 101 #define PA_GCC_ALLOC_SIZE(x) __attribute__ ((__alloc_size__(x))) 102 #define PA_GCC_ALLOC_SIZE2(x,y) __attribute__ ((__alloc_size__(x,y))) 103 #else 104 /** Macro for usage of GCC's alloc_size attribute */ 105 #define PA_GCC_ALLOC_SIZE(x) 106 /** Macro for usage of GCC's alloc_size attribute */ 107 #define PA_GCC_ALLOC_SIZE2(x,y) 108 #endif 109 #endif 110 111 #ifndef PA_GCC_MALLOC 112 #ifdef __GNUC__ 113 #define PA_GCC_MALLOC __attribute__ ((malloc)) 114 #else 115 /** Macro for usage of GCC's malloc attribute */ 116 #define PA_GCC_MALLOC 117 #endif 118 #endif 119 120 #ifndef PA_GCC_WEAKREF 121 #if defined(__GNUC__) && defined(__ELF__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ > 1)) || (__GNUC__ > 4)) 122 /** Macro for usage of GCC's weakref attribute */ 123 #define PA_GCC_WEAKREF(x) __attribute__((weakref(#x))) 124 #endif 125 #endif 126 127 #endif 128
