/usr/include/spice-1/spice/macros.h is in libspice-protocol-dev 0.12.7-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 | /* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
Copyright (C) 2010 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This program 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 Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/* This file is to a large extent based on gmacros.h from glib
* Which is LGPL and copyright:
*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef _H_SPICE_MACROS
#define _H_SPICE_MACROS
/* We include stddef.h to get the system's definition of NULL */
#include <stddef.h>
#include <spice/types.h>
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
#define SPICE_GNUC_PURE __attribute__((__pure__))
#define SPICE_GNUC_MALLOC __attribute__((__malloc__))
#else
#define SPICE_GNUC_PURE
#define SPICE_GNUC_MALLOC
#endif
#if __GNUC__ >= 4
#define SPICE_GNUC_NULL_TERMINATED __attribute__((__sentinel__))
#else
#define SPICE_GNUC_NULL_TERMINATED
#endif
#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
#define SPICE_GNUC_ALLOC_SIZE(x) __attribute__((__alloc_size__(x)))
#define SPICE_GNUC_ALLOC_SIZE2(x,y) __attribute__((__alloc_size__(x,y)))
#else
#define SPICE_GNUC_ALLOC_SIZE(x)
#define SPICE_GNUC_ALLOC_SIZE2(x,y)
#endif
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
#define SPICE_GNUC_PRINTF( format_idx, arg_idx ) __attribute__((__format__ (__printf__, format_idx, arg_idx)))
#define SPICE_GNUC_SCANF( format_idx, arg_idx ) __attribute__((__format__ (__scanf__, format_idx, arg_idx)))
#define SPICE_GNUC_FORMAT( arg_idx ) __attribute__((__format_arg__ (arg_idx)))
#define SPICE_GNUC_NORETURN __attribute__((__noreturn__))
#define SPICE_GNUC_CONST __attribute__((__const__))
#define SPICE_GNUC_UNUSED __attribute__((__unused__))
#define SPICE_GNUC_NO_INSTRUMENT __attribute__((__no_instrument_function__))
#else /* !__GNUC__ */
#define SPICE_GNUC_PRINTF( format_idx, arg_idx )
#define SPICE_GNUC_SCANF( format_idx, arg_idx )
#define SPICE_GNUC_FORMAT( arg_idx )
#define SPICE_GNUC_NORETURN
#define SPICE_GNUC_CONST
#define SPICE_GNUC_UNUSED
#define SPICE_GNUC_NO_INSTRUMENT
#endif /* !__GNUC__ */
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
#define SPICE_GNUC_DEPRECATED __attribute__((__deprecated__))
#else
#define SPICE_GNUC_DEPRECATED
#endif /* __GNUC__ */
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
# define SPICE_GNUC_MAY_ALIAS __attribute__((may_alias))
#else
# define SPICE_GNUC_MAY_ALIAS
#endif
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
#define SPICE_GNUC_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#else
#define SPICE_GNUC_WARN_UNUSED_RESULT
#endif /* __GNUC__ */
/* Guard C code in headers, while including them from C++ */
#ifdef __cplusplus
# define SPICE_BEGIN_DECLS extern "C" {
# define SPICE_END_DECLS }
#else
# define SPICE_BEGIN_DECLS
# define SPICE_END_DECLS
#endif
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef TRUE
#define TRUE (!FALSE)
#endif
#undef MAX
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#undef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#undef ABS
#define ABS(a) (((a) < 0) ? -(a) : (a))
/* Count the number of elements in an array. The array must be defined
* as such; using this with a dynamically allocated array will give
* incorrect results.
*/
#define SPICE_N_ELEMENTS(arr) (sizeof (arr) / sizeof ((arr)[0]))
#define SPICE_ALIGN(a, size) (((a) + ((size) - 1)) & ~((size) - 1))
/* Provide convenience macros for handling structure
* fields through their offsets.
*/
#if defined(__GNUC__) && __GNUC__ >= 4
# define SPICE_OFFSETOF(struct_type, member) \
((long) offsetof (struct_type, member))
#else
# define SPICE_OFFSETOF(struct_type, member) \
((long) ((uint8_t*) &((struct_type*) 0)->member))
#endif
#define SPICE_CONTAINEROF(ptr, struct_type, member) \
((struct_type *)((uint8_t *)(ptr) - SPICE_OFFSETOF(struct_type, member)))
#define SPICE_MEMBER_P(struct_p, struct_offset) \
((gpointer) ((guint8*) (struct_p) + (glong) (struct_offset)))
#define SPICE_MEMBER(member_type, struct_p, struct_offset) \
(*(member_type*) SPICE_STRUCT_MEMBER_P ((struct_p), (struct_offset)))
/* Provide simple macro statement wrappers:
* SPICE_STMT_START { statements; } SPICE_STMT_END;
* This can be used as a single statement, like:
* if (x) SPICE_STMT_START { ... } SPICE_STMT_END; else ...
* This intentionally does not use compiler extensions like GCC's '({...})' to
* avoid portability issue or side effects when compiled with different compilers.
*/
#if !(defined (SPICE_STMT_START) && defined (SPICE_STMT_END))
# define SPICE_STMT_START do
# define SPICE_STMT_END while (0)
#endif
/*
* The SPICE_LIKELY and SPICE_UNLIKELY macros let the programmer give hints to
* the compiler about the expected result of an expression. Some compilers
* can use this information for optimizations.
*
* The _SPICE_BOOLEAN_EXPR macro is intended to trigger a gcc warning when
* putting assignments in g_return_if_fail ().
*/
#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
#define _SPICE_BOOLEAN_EXPR(expr) \
__extension__ ({ \
int _g_boolean_var_; \
if (expr) \
_g_boolean_var_ = 1; \
else \
_g_boolean_var_ = 0; \
_g_boolean_var_; \
})
#define SPICE_LIKELY(expr) (__builtin_expect (_SPICE_BOOLEAN_EXPR(expr), 1))
#define SPICE_UNLIKELY(expr) (__builtin_expect (_SPICE_BOOLEAN_EXPR(expr), 0))
#else
#define SPICE_LIKELY(expr) (expr)
#define SPICE_UNLIKELY(expr) (expr)
#endif
#ifdef _MSC_VER
#define SPICE_UINT64_CONSTANT(x) (x ## UI64)
#define SPICE_INT64_CONSTANT(x) (x ## I64)
#else
#if LONG_MAX == 2147483647L
#define SPICE_UINT64_CONSTANT(x) (x ## ULL)
#define SPICE_INT64_CONSTANT(x) (x ## LL)
#else
#define SPICE_UINT64_CONSTANT(x) (x ## UL)
#define SPICE_INT64_CONSTANT(x) (x ## L)
#endif
#endif
/* Little/Bit endian byte swapping */
#define SPICE_BYTESWAP16_CONSTANT(val) ((uint16_t) ( \
(uint16_t) ((uint16_t) (val) >> 8) | \
(uint16_t) ((uint16_t) (val) << 8)))
#define SPICE_BYTESWAP32_CONSTANT(val) ((uint32_t) ( \
(((uint32_t) (val) & (uint32_t) 0x000000ffU) << 24) | \
(((uint32_t) (val) & (uint32_t) 0x0000ff00U) << 8) | \
(((uint32_t) (val) & (uint32_t) 0x00ff0000U) >> 8) | \
(((uint32_t) (val) & (uint32_t) 0xff000000U) >> 24)))
#define SPICE_BYTESWAP64_CONSTANT(val) ((uint64_t) ( \
(((uint64_t) (val) & \
(uint64_t) SPICE_UINT64_CONSTANT(0x00000000000000ff)) << 56) | \
(((uint64_t) (val) & \
(uint64_t) SPICE_UINT64_CONSTANT(0x000000000000ff00)) << 40) | \
(((uint64_t) (val) & \
(uint64_t) SPICE_UINT64_CONSTANT(0x0000000000ff0000)) << 24) | \
(((uint64_t) (val) & \
(uint64_t) SPICE_UINT64_CONSTANT(0x00000000ff000000)) << 8) | \
(((uint64_t) (val) & \
(uint64_t) SPICE_UINT64_CONSTANT(0x000000ff00000000)) >> 8) | \
(((uint64_t) (val) & \
(uint64_t) SPICE_UINT64_CONSTANT(0x0000ff0000000000)) >> 24) | \
(((uint64_t) (val) & \
(uint64_t) SPICE_UINT64_CONSTANT(0x00ff000000000000)) >> 40) | \
(((uint64_t) (val) & \
(uint64_t) SPICE_UINT64_CONSTANT(0xff00000000000000)) >> 56)))
/* Arch specific stuff for speed
*/
#if defined (__GNUC__) && (__GNUC__ >= 2) && defined (__OPTIMIZE__)
# if defined (__i386__)
# define SPICE_BYTESWAP16_IA32(val) \
(__extension__ \
({ register uint16_t __v, __x = ((uint16_t) (val)); \
if (__builtin_constant_p (__x)) \
__v = SPICE_BYTESWAP16_CONSTANT (__x); \
else \
__asm__ ("rorw $8, %w0" \
: "=r" (__v) \
: "0" (__x) \
: "cc"); \
__v; }))
# if !defined (__i486__) && !defined (__i586__) \
&& !defined (__pentium__) && !defined (__i686__) \
&& !defined (__pentiumpro__) && !defined (__pentium4__)
# define SPICE_BYTESWAP32_IA32(val) \
(__extension__ \
({ register uint32_t __v, __x = ((uint32_t) (val)); \
if (__builtin_constant_p (__x)) \
__v = SPICE_BYTESWAP32_CONSTANT (__x); \
else \
__asm__ ("rorw $8, %w0\n\t" \
"rorl $16, %0\n\t" \
"rorw $8, %w0" \
: "=r" (__v) \
: "0" (__x) \
: "cc"); \
__v; }))
# else /* 486 and higher has bswap */
# define SPICE_BYTESWAP32_IA32(val) \
(__extension__ \
({ register uint32_t __v, __x = ((uint32_t) (val)); \
if (__builtin_constant_p (__x)) \
__v = SPICE_BYTESWAP32_CONSTANT (__x); \
else \
__asm__ ("bswap %0" \
: "=r" (__v) \
: "0" (__x)); \
__v; }))
# endif /* processor specific 32-bit stuff */
# define SPICE_BYTESWAP64_IA32(val) \
(__extension__ \
({ union { uint64_t __ll; \
uint32_t __l[2]; } __w, __r; \
__w.__ll = ((uint64_t) (val)); \
if (__builtin_constant_p (__w.__ll)) \
__r.__ll = SPICE_BYTESWAP64_CONSTANT (__w.__ll); \
else \
{ \
__r.__l[0] = SPICE_BYTESWAP32 (__w.__l[1]); \
__r.__l[1] = SPICE_BYTESWAP32 (__w.__l[0]); \
} \
__r.__ll; }))
/* Possibly just use the constant version and let gcc figure it out? */
# define SPICE_BYTESWAP16(val) (SPICE_BYTESWAP16_IA32 (val))
# define SPICE_BYTESWAP32(val) (SPICE_BYTESWAP32_IA32 (val))
# define SPICE_BYTESWAP64(val) (SPICE_BYTESWAP64_IA32 (val))
# elif defined (__ia64__)
# define SPICE_BYTESWAP16_IA64(val) \
(__extension__ \
({ register uint16_t __v, __x = ((uint16_t) (val)); \
if (__builtin_constant_p (__x)) \
__v = SPICE_BYTESWAP16_CONSTANT (__x); \
else \
__asm__ __volatile__ ("shl %0 = %1, 48 ;;" \
"mux1 %0 = %0, @rev ;;" \
: "=r" (__v) \
: "r" (__x)); \
__v; }))
# define SPICE_BYTESWAP32_IA64(val) \
(__extension__ \
({ register uint32_t __v, __x = ((uint32_t) (val)); \
if (__builtin_constant_p (__x)) \
__v = SPICE_BYTESWAP32_CONSTANT (__x); \
else \
__asm__ __volatile__ ("shl %0 = %1, 32 ;;" \
"mux1 %0 = %0, @rev ;;" \
: "=r" (__v) \
: "r" (__x)); \
__v; }))
# define SPICE_BYTESWAP64_IA64(val) \
(__extension__ \
({ register uint64_t __v, __x = ((uint64_t) (val)); \
if (__builtin_constant_p (__x)) \
__v = SPICE_BYTESWAP64_CONSTANT (__x); \
else \
__asm__ __volatile__ ("mux1 %0 = %1, @rev ;;" \
: "=r" (__v) \
: "r" (__x)); \
__v; }))
# define SPICE_BYTESWAP16(val) (SPICE_BYTESWAP16_IA64 (val))
# define SPICE_BYTESWAP32(val) (SPICE_BYTESWAP32_IA64 (val))
# define SPICE_BYTESWAP64(val) (SPICE_BYTESWAP64_IA64 (val))
# elif defined (__x86_64__)
# define SPICE_BYTESWAP32_X86_64(val) \
(__extension__ \
({ register uint32_t __v, __x = ((uint32_t) (val)); \
if (__builtin_constant_p (__x)) \
__v = SPICE_BYTESWAP32_CONSTANT (__x); \
else \
__asm__ ("bswapl %0" \
: "=r" (__v) \
: "0" (__x)); \
__v; }))
# define SPICE_BYTESWAP64_X86_64(val) \
(__extension__ \
({ register uint64_t __v, __x = ((uint64_t) (val)); \
if (__builtin_constant_p (__x)) \
__v = SPICE_BYTESWAP64_CONSTANT (__x); \
else \
__asm__ ("bswapq %0" \
: "=r" (__v) \
: "0" (__x)); \
__v; }))
/* gcc seems to figure out optimal code for this on its own */
# define SPICE_BYTESWAP16(val) (SPICE_BYTESWAP16_CONSTANT (val))
# define SPICE_BYTESWAP32(val) (SPICE_BYTESWAP32_X86_64 (val))
# define SPICE_BYTESWAP64(val) (SPICE_BYTESWAP64_X86_64 (val))
# else /* generic gcc */
# define SPICE_BYTESWAP16(val) (SPICE_BYTESWAP16_CONSTANT (val))
# define SPICE_BYTESWAP32(val) (SPICE_BYTESWAP32_CONSTANT (val))
# define SPICE_BYTESWAP64(val) (SPICE_BYTESWAP64_CONSTANT (val))
# endif
#else /* generic */
# define SPICE_BYTESWAP16(val) (SPICE_BYTESWAP16_CONSTANT (val))
# define SPICE_BYTESWAP32(val) (SPICE_BYTESWAP32_CONSTANT (val))
# define SPICE_BYTESWAP64(val) (SPICE_BYTESWAP64_CONSTANT (val))
#endif /* generic */
#endif /* _H_SPICE_MACROS */
|