/usr/include/gdnsd/compiler.h is in gdnsd-dev 1.11.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | /* Copyright © 2012 Brandon L Black <blblack@gmail.com>
*
* This file is part of gdnsd.
*
* gdnsd is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* gdnsd is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gdnsd. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef GDNSD_COMPILER_H
#define GDNSD_COMPILER_H
// GCC features we can take advantage of
#ifdef __GNUC__
# if __GNUC__ < 3
# error Your GCC is way too old (< 3.x)...
# endif
# define likely(x) __builtin_expect(!!(x), 1)
# define unlikely(x) __builtin_expect(!!(x), 0)
# define V_UNUSED __attribute__((__unused__))
# define F_UNUSED __attribute__((__unused__))
# define F_CONST __attribute__((__const__))
# define F_PURE __attribute__((__pure__))
# define F_MALLOC __attribute__((__malloc__))
# define F_NORETURN __attribute__((__noreturn__))
# if __GNUC__ > 3 || __GNUC_MINOR__ > 0 // gcc 3.1+
# define F_NOINLINE __attribute__((__noinline__))
# else
# define F_NOINLINE
# endif
# if __GNUC__ > 3 || __GNUC_MINOR__ > 2 // gcc 3.3+
# define F_NONNULLX(...) __attribute__((__nonnull__(__VA_ARGS__)))
# define F_NONNULL __attribute__((__nonnull__))
# else
# define F_NONNULLX(...)
# define F_NONNULL
# endif
# if __GNUC__ > 3 || __GNUC_MINOR__ > 3 // gcc 3.4+
# define F_WUNUSED __attribute__((__warn_unused_result__))
# define HAVE_BUILTIN_CLZ 1
# else
# define F_WUNUSED
# endif
#else // Other C99+ compilers...
# define likely(x) (!!(x))
# define unlikely(x) (!!(x))
# define V_UNUSED
# define F_UNUSED
# define F_CONST
# define F_PURE
# define F_MALLOC
# if __STDC_VERSION__ >= 201112L // C11
# define F_NORETURN _Noreturn
# else
# define F_NORETURN
# endif
# define F_NOINLINE
# define F_NONNULLX(...)
# define F_NONNULL
# define F_WUNUSED
#endif
// This is a GCC-ism which also seems to be supported
// by other common compilers on our platforms. If it
// breaks for you, please file a bug report and we'll
// find a way to fix it.
#define S_PACKED __attribute__((__packed__))
// Unaligned memory access stuff
#include <inttypes.h>
struct _gdnsd_una16 { uint16_t x; } S_PACKED;
struct _gdnsd_una32 { uint32_t x; } S_PACKED;
#define gdnsd_get_una16(_p) (((const struct _gdnsd_una16*)(_p))->x)
#define gdnsd_get_una32(_p) (((const struct _gdnsd_una32*)(_p))->x)
#define gdnsd_put_una16(_v,_p) (((struct _gdnsd_una16*)(_p))->x) = (_v)
#define gdnsd_put_una32(_v,_p) (((struct _gdnsd_una32*)(_p))->x) = (_v)
// Valgrind hooks for debug builds
#if !defined(NDEBUG) && defined(HAVE_VALGRIND_MEMCHECK_H)
# include <valgrind/memcheck.h>
#define NOWARN_VALGRIND_MAKE_MEM_NOACCESS(x,y) \
do { int _x V_UNUSED; _x = VALGRIND_MAKE_MEM_NOACCESS(x,y); } while(0)
#else
# define RUNNING_ON_VALGRIND 0
# define NOWARN_VALGRIND_MAKE_MEM_NOACCESS(x,y) ((void)(0))
# define VALGRIND_CREATE_MEMPOOL(x,y,z) ((void)(0))
# define VALGRIND_DESTROY_MEMPOOL(x) ((void)(0))
# define VALGRIND_MEMPOOL_ALLOC(x,y,z) ((void)(0))
#endif
// And silence some related warnings on gcc 4.6 + valgrind 3.6
#if !defined(NDEBUG) && defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5))
# define NOWARN_VALGRIND_CREATE_MEMPOOL(x,y,z) { \
_Pragma("GCC diagnostic push"); \
_Pragma("GCC diagnostic ignored \"-Wunused-but-set-variable\""); \
VALGRIND_CREATE_MEMPOOL(x,y,z); \
_Pragma("GCC diagnostic pop"); \
}
# define NOWARN_VALGRIND_DESTROY_MEMPOOL(x) { \
_Pragma("GCC diagnostic push"); \
_Pragma("GCC diagnostic ignored \"-Wunused-but-set-variable\""); \
VALGRIND_DESTROY_MEMPOOL(x); \
_Pragma("GCC diagnostic pop"); \
}
# define NOWARN_VALGRIND_MEMPOOL_ALLOC(x,y,z) { \
_Pragma("GCC diagnostic push"); \
_Pragma("GCC diagnostic ignored \"-Wunused-but-set-variable\""); \
VALGRIND_MEMPOOL_ALLOC(x,y,z); \
_Pragma("GCC diagnostic pop"); \
}
#else
# define NOWARN_VALGRIND_CREATE_MEMPOOL(x,y,z) \
VALGRIND_CREATE_MEMPOOL(x,y,z)
# define NOWARN_VALGRIND_DESTROY_MEMPOOL(x) \
VALGRIND_DESTROY_MEMPOOL(x)
# define NOWARN_VALGRIND_MEMPOOL_ALLOC(x,y,z) \
VALGRIND_MEMPOOL_ALLOC(x,y,z);
#endif
#endif // GDNSD_COMPILER_H
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