Mercurial > hg > CbC > CbC_gcc
annotate libcpp/system.h @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | f6334be47118 |
| children | 84e7813d76e9 |
| rev | line source |
|---|---|
| 0 | 1 /* Get common system includes and various definitions and declarations based |
| 2 on autoconf macros. | |
| 111 | 3 Copyright (C) 1998-2017 Free Software Foundation, Inc. |
| 0 | 4 |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it under | |
| 8 the terms of the GNU General Public License as published by the Free | |
| 9 Software Foundation; either version 3, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
| 21 | |
| 22 #ifndef LIBCPP_SYSTEM_H | |
| 23 #define LIBCPP_SYSTEM_H | |
| 24 | |
| 25 /* We must include stdarg.h before stdio.h. */ | |
| 26 #include <stdarg.h> | |
| 27 | |
| 28 #ifdef HAVE_STDDEF_H | |
| 29 # include <stddef.h> | |
| 30 #endif | |
|
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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31 #ifdef HAVE_STDINT_H |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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32 # include <stdint.h> |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
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33 #endif |
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f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
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changeset
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34 #ifdef HAVE_INTTYPES_H |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
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35 # include <inttypes.h> |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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36 #endif |
| 0 | 37 |
| 38 #include <stdio.h> | |
| 39 | |
| 40 /* Define a generic NULL if one hasn't already been defined. */ | |
| 41 #ifndef NULL | |
| 42 #define NULL 0 | |
| 43 #endif | |
| 44 | |
| 45 /* Use the unlocked open routines from libiberty. */ | |
| 111 | 46 |
| 47 /* Some of these are #define on some systems, e.g. on AIX to redirect | |
| 48 the names to 64bit capable functions for LARGE_FILES support. These | |
| 49 redefs are pointless here so we can override them. */ | |
| 50 | |
| 51 #undef fopen | |
| 52 #undef freopen | |
| 53 | |
| 0 | 54 #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE) |
| 55 #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE) | |
| 56 #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM) | |
| 57 | |
| 58 /* The compiler is not a multi-threaded application and therefore we | |
| 59 do not have to use the locking functions. In fact, using the locking | |
| 60 functions can cause the compiler to be significantly slower under | |
| 61 I/O bound conditions (such as -g -O0 on very large source files). | |
| 62 | |
| 63 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio | |
| 64 code is multi-thread safe by default. If it is set to 0, then do | |
| 65 not worry about using the _unlocked functions. | |
| 66 | |
| 67 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are | |
| 68 extensions and need to be prototyped by hand (since we do not | |
| 69 define _GNU_SOURCE). */ | |
| 70 | |
| 71 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED | |
| 72 | |
| 73 # ifdef HAVE_PUTC_UNLOCKED | |
| 74 # undef putc | |
| 75 # define putc(C, Stream) putc_unlocked (C, Stream) | |
| 76 # endif | |
| 77 # ifdef HAVE_PUTCHAR_UNLOCKED | |
| 78 # undef putchar | |
| 79 # define putchar(C) putchar_unlocked (C) | |
| 80 # endif | |
| 81 # ifdef HAVE_GETC_UNLOCKED | |
| 82 # undef getc | |
| 83 # define getc(Stream) getc_unlocked (Stream) | |
| 84 # endif | |
| 85 # ifdef HAVE_GETCHAR_UNLOCKED | |
| 86 # undef getchar | |
| 87 # define getchar() getchar_unlocked () | |
| 88 # endif | |
| 89 # ifdef HAVE_FPUTC_UNLOCKED | |
| 90 # undef fputc | |
| 91 # define fputc(C, Stream) fputc_unlocked (C, Stream) | |
| 92 # endif | |
| 93 | |
| 111 | 94 #ifdef __cplusplus |
| 95 extern "C" { | |
| 96 #endif | |
| 97 | |
| 0 | 98 # ifdef HAVE_CLEARERR_UNLOCKED |
| 99 # undef clearerr | |
| 100 # define clearerr(Stream) clearerr_unlocked (Stream) | |
| 101 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED | |
| 102 extern void clearerr_unlocked (FILE *); | |
| 103 # endif | |
| 104 # endif | |
| 105 # ifdef HAVE_FEOF_UNLOCKED | |
| 106 # undef feof | |
| 107 # define feof(Stream) feof_unlocked (Stream) | |
| 108 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED | |
| 109 extern int feof_unlocked (FILE *); | |
| 110 # endif | |
| 111 # endif | |
| 112 # ifdef HAVE_FILENO_UNLOCKED | |
| 113 # undef fileno | |
| 114 # define fileno(Stream) fileno_unlocked (Stream) | |
| 115 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED | |
| 116 extern int fileno_unlocked (FILE *); | |
| 117 # endif | |
| 118 # endif | |
| 119 # ifdef HAVE_FFLUSH_UNLOCKED | |
| 120 # undef fflush | |
| 121 # define fflush(Stream) fflush_unlocked (Stream) | |
| 122 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED | |
| 123 extern int fflush_unlocked (FILE *); | |
| 124 # endif | |
| 125 # endif | |
| 126 # ifdef HAVE_FGETC_UNLOCKED | |
| 127 # undef fgetc | |
| 128 # define fgetc(Stream) fgetc_unlocked (Stream) | |
| 129 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED | |
| 130 extern int fgetc_unlocked (FILE *); | |
| 131 # endif | |
| 132 # endif | |
| 133 # ifdef HAVE_FGETS_UNLOCKED | |
| 134 # undef fgets | |
| 135 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream) | |
| 136 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED | |
| 137 extern char *fgets_unlocked (char *, int, FILE *); | |
| 138 # endif | |
| 139 # endif | |
| 140 # ifdef HAVE_FPUTS_UNLOCKED | |
| 141 # undef fputs | |
| 142 # define fputs(String, Stream) fputs_unlocked (String, Stream) | |
| 143 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED | |
| 144 extern int fputs_unlocked (const char *, FILE *); | |
| 145 # endif | |
| 146 # endif | |
| 147 # ifdef HAVE_FERROR_UNLOCKED | |
| 148 # undef ferror | |
| 149 # define ferror(Stream) ferror_unlocked (Stream) | |
| 150 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED | |
| 151 extern int ferror_unlocked (FILE *); | |
| 152 # endif | |
| 153 # endif | |
| 154 # ifdef HAVE_FREAD_UNLOCKED | |
| 155 # undef fread | |
| 156 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream) | |
| 157 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED | |
| 158 extern size_t fread_unlocked (void *, size_t, size_t, FILE *); | |
| 159 # endif | |
| 160 # endif | |
| 161 # ifdef HAVE_FWRITE_UNLOCKED | |
| 162 # undef fwrite | |
| 163 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) | |
| 164 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED | |
| 165 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *); | |
| 166 # endif | |
| 167 # endif | |
| 168 # ifdef HAVE_FPRINTF_UNLOCKED | |
| 169 # undef fprintf | |
| 170 /* We can't use a function-like macro here because we don't know if | |
| 171 we have varargs macros. */ | |
| 172 # define fprintf fprintf_unlocked | |
| 173 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED | |
| 174 extern int fprintf_unlocked (FILE *, const char *, ...); | |
| 175 # endif | |
| 176 # endif | |
| 177 | |
| 111 | 178 #ifdef __cplusplus |
| 179 } | |
| 180 #endif | |
| 181 | |
| 0 | 182 #endif |
| 183 | |
| 184 /* ??? Glibc's fwrite/fread_unlocked macros cause | |
| 185 "warning: signed and unsigned type in conditional expression". */ | |
| 186 #undef fread_unlocked | |
| 187 #undef fwrite_unlocked | |
| 188 | |
| 189 #include <sys/types.h> | |
| 190 #include <errno.h> | |
| 191 | |
| 192 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO | |
| 193 extern int errno; | |
| 194 #endif | |
| 195 | |
| 196 /* Some of glibc's string inlines cause warnings. Plus we'd rather | |
| 197 rely on (and therefore test) GCC's string builtins. */ | |
| 198 #define __NO_STRING_INLINES | |
| 199 | |
| 200 #ifdef STRING_WITH_STRINGS | |
| 201 # include <string.h> | |
| 202 # include <strings.h> | |
| 203 #else | |
| 204 # ifdef HAVE_STRING_H | |
| 205 # include <string.h> | |
| 206 # else | |
| 207 # ifdef HAVE_STRINGS_H | |
| 208 # include <strings.h> | |
| 209 # endif | |
| 210 # endif | |
| 211 #endif | |
| 212 | |
| 213 #ifdef HAVE_STDLIB_H | |
| 214 # include <stdlib.h> | |
| 215 #endif | |
| 216 | |
| 217 #ifdef HAVE_UNISTD_H | |
| 218 # include <unistd.h> | |
| 219 #endif | |
| 220 | |
| 221 #if HAVE_LIMITS_H | |
| 222 # include <limits.h> | |
| 223 #endif | |
| 224 | |
| 225 /* Infrastructure for defining missing _MAX and _MIN macros. Note that | |
| 226 macros defined with these cannot be used in #if. */ | |
| 227 | |
| 228 /* The extra casts work around common compiler bugs. */ | |
| 229 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) | |
| 230 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0. | |
| 231 It is necessary at least when t == time_t. */ | |
| 232 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ | |
| 111 | 233 ? (t) 1 << (sizeof (t) * CHAR_BIT - 1) : (t) 0)) |
| 0 | 234 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) |
| 235 | |
| 236 /* Use that infrastructure to provide a few constants. */ | |
| 237 #ifndef UCHAR_MAX | |
| 238 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) | |
| 239 #endif | |
| 240 | |
| 241 #ifdef TIME_WITH_SYS_TIME | |
| 242 # include <sys/time.h> | |
| 243 # include <time.h> | |
| 244 #else | |
| 245 # if HAVE_SYS_TIME_H | |
| 246 # include <sys/time.h> | |
| 247 # else | |
| 248 # ifdef HAVE_TIME_H | |
| 249 # include <time.h> | |
| 250 # endif | |
| 251 # endif | |
| 252 #endif | |
| 253 | |
| 254 #ifdef HAVE_FCNTL_H | |
| 255 # include <fcntl.h> | |
| 256 #else | |
| 257 # ifdef HAVE_SYS_FILE_H | |
| 258 # include <sys/file.h> | |
| 259 # endif | |
| 260 #endif | |
| 261 | |
| 262 #ifdef HAVE_LOCALE_H | |
| 263 # include <locale.h> | |
| 264 #endif | |
| 265 | |
| 266 #ifdef HAVE_LANGINFO_CODESET | |
| 267 # include <langinfo.h> | |
| 268 #endif | |
| 269 | |
| 270 #ifndef HAVE_SETLOCALE | |
| 271 # define setlocale(category, locale) (locale) | |
| 272 #endif | |
| 273 | |
| 274 #ifdef ENABLE_NLS | |
| 275 #include <libintl.h> | |
| 276 #else | |
| 277 /* Stubs. */ | |
| 278 # undef dgettext | |
| 279 # define dgettext(package, msgid) (msgid) | |
| 280 #endif | |
| 281 | |
| 282 #ifndef _ | |
| 283 # define _(msgid) dgettext (PACKAGE, msgid) | |
| 284 #endif | |
| 285 | |
| 286 #ifndef N_ | |
| 287 # define N_(msgid) msgid | |
| 288 #endif | |
| 289 | |
| 290 /* Some systems define these in, e.g., param.h. We undefine these names | |
| 291 here to avoid the warnings. We prefer to use our definitions since we | |
| 292 know they are correct. */ | |
| 293 | |
| 294 #undef MIN | |
| 295 #undef MAX | |
| 296 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) | |
| 297 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) | |
| 298 | |
| 299 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they | |
| 300 are defined to 0 then we must provide the relevant declaration | |
| 301 here. These checks will be in the undefined state while configure | |
| 302 is running so be careful to test "defined (HAVE_DECL_*)". */ | |
| 303 | |
| 111 | 304 #ifdef __cplusplus |
| 305 extern "C" { | |
| 306 #endif | |
| 307 | |
| 0 | 308 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT |
| 309 extern void abort (void); | |
| 310 #endif | |
| 311 | |
| 111 | 312 #ifdef __cplusplus |
| 313 } | |
| 314 #endif | |
| 315 | |
| 0 | 316 #if HAVE_SYS_STAT_H |
| 317 # include <sys/stat.h> | |
| 318 #endif | |
| 319 | |
| 320 /* Test if something is a normal file. */ | |
| 321 #ifndef S_ISREG | |
| 322 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
| 323 #endif | |
| 324 | |
| 325 /* Test if something is a directory. */ | |
| 326 #ifndef S_ISDIR | |
| 327 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
| 328 #endif | |
| 329 | |
| 330 /* Test if something is a character special file. */ | |
| 331 #ifndef S_ISCHR | |
| 332 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) | |
| 333 #endif | |
| 334 | |
| 335 /* Test if something is a block special file. */ | |
| 336 #ifndef S_ISBLK | |
| 337 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) | |
| 338 #endif | |
| 339 | |
| 340 /* Test if something is a socket. */ | |
| 341 #ifndef S_ISSOCK | |
| 342 # ifdef S_IFSOCK | |
| 343 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) | |
| 344 # else | |
| 345 # define S_ISSOCK(m) 0 | |
| 346 # endif | |
| 347 #endif | |
| 348 | |
| 349 /* Test if something is a FIFO. */ | |
| 350 #ifndef S_ISFIFO | |
| 351 # ifdef S_IFIFO | |
| 352 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) | |
| 353 # else | |
| 354 # define S_ISFIFO(m) 0 | |
| 355 # endif | |
| 356 #endif | |
| 357 | |
| 358 /* Approximate O_NOCTTY and O_BINARY. */ | |
| 359 #ifndef O_NOCTTY | |
| 360 #define O_NOCTTY 0 | |
| 361 #endif | |
| 362 #ifndef O_BINARY | |
| 363 # define O_BINARY 0 | |
| 364 #endif | |
| 365 | |
| 366 /* Filename handling macros. */ | |
| 367 #include "filenames.h" | |
| 368 | |
| 369 /* Get libiberty declarations. */ | |
| 370 #include "libiberty.h" | |
| 371 #include "safe-ctype.h" | |
| 372 | |
| 373 /* 1 if we have C99 designated initializers. | |
| 374 | |
| 375 ??? C99 designated initializers are not supported by most C++ | |
| 376 compilers, including G++. -- gdr, 2005-05-18 */ | |
| 377 #if !defined(HAVE_DESIGNATED_INITIALIZERS) | |
| 111 | 378 #ifdef __cplusplus |
| 379 #define HAVE_DESIGNATED_INITIALIZERS 0 | |
| 380 #else | |
| 0 | 381 #define HAVE_DESIGNATED_INITIALIZERS \ |
| 111 | 382 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) |
| 0 | 383 #endif |
| 384 #endif | |
| 385 | |
| 386 #ifndef offsetof | |
| 387 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) | |
| 388 #endif | |
| 389 | |
| 390 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that | |
| 391 the most likely value of A is B. This feature was added at some point | |
| 392 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ | |
| 393 #if (GCC_VERSION < 3000) | |
| 394 #define __builtin_expect(a, b) (a) | |
| 395 #endif | |
| 396 | |
| 111 | 397 /* Redefine abort to report an internal error w/o coredump, and |
| 398 reporting the location of the error in the source file. */ | |
| 399 extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; | |
| 400 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) | |
| 401 | |
| 402 /* Use gcc_assert(EXPR) to test invariants. */ | |
| 403 #if ENABLE_ASSERT_CHECKING | |
| 404 #define gcc_assert(EXPR) \ | |
| 405 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) | |
| 406 #elif (GCC_VERSION >= 4005) | |
| 407 #define gcc_assert(EXPR) \ | |
| 408 ((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0)) | |
| 409 #else | |
| 410 /* Include EXPR, so that unused variable warnings do not occur. */ | |
| 411 #define gcc_assert(EXPR) ((void)(0 && (EXPR))) | |
| 412 #endif | |
| 413 | |
| 414 #if CHECKING_P | |
| 415 #define gcc_checking_assert(EXPR) gcc_assert (EXPR) | |
| 416 #else | |
| 417 /* N.B.: in release build EXPR is not evaluated. */ | |
| 418 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR))) | |
| 419 #endif | |
| 420 | |
| 0 | 421 /* Provide a fake boolean type. We make no attempt to use the |
| 422 C99 _Bool, as it may not be available in the bootstrap compiler, | |
| 423 and even if it is, it is liable to be buggy. | |
| 424 This must be after all inclusion of system headers, as some of | |
| 425 them will mess us up. */ | |
| 426 #undef bool | |
| 427 #undef true | |
| 428 #undef false | |
| 429 #undef TRUE | |
| 430 #undef FALSE | |
| 431 | |
| 432 #ifndef __cplusplus | |
| 433 #define bool unsigned char | |
| 434 #endif | |
| 435 #define true 1 | |
| 436 #define false 0 | |
| 437 | |
| 438 /* Some compilers do not allow the use of unsigned char in bitfields. */ | |
| 439 #define BOOL_BITFIELD unsigned int | |
| 440 | |
| 441 /* Poison identifiers we do not want to use. */ | |
| 442 #if (GCC_VERSION >= 3000) | |
| 443 #undef calloc | |
| 444 #undef strdup | |
| 445 #undef malloc | |
| 446 #undef realloc | |
| 447 #pragma GCC poison calloc strdup | |
| 448 #pragma GCC poison malloc realloc | |
| 449 | |
| 450 /* Libiberty macros that are no longer used in GCC. */ | |
| 451 #undef ANSI_PROTOTYPES | |
| 452 #undef PTR_CONST | |
| 453 #undef LONG_DOUBLE | |
| 454 #undef VPARAMS | |
| 455 #undef VA_OPEN | |
| 456 #undef VA_FIXEDARG | |
| 457 #undef VA_CLOSE | |
| 458 #undef VA_START | |
| 459 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ | |
| 460 VA_FIXEDARG VA_CLOSE VA_START | |
| 461 | |
| 462 /* Note: not all uses of the `index' token (e.g. variable names and | |
| 463 structure members) have been eliminated. */ | |
| 464 #undef bcopy | |
| 465 #undef bzero | |
| 466 #undef bcmp | |
| 467 #undef rindex | |
| 468 #pragma GCC poison bcopy bzero bcmp rindex | |
| 469 | |
| 470 #endif /* GCC >= 3.0 */ | |
| 471 #endif /* ! LIBCPP_SYSTEM_H */ |