Mercurial > hg > CbC > CbC_gcc
annotate libcpp/system.h @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | a06113de4d67 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Get common system includes and various definitions and declarations based |
| 2 on autoconf macros. | |
|
67
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
|
3 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009, 2010 |
| 0 | 4 Free Software Foundation, Inc. |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify it under | |
| 9 the terms of the GNU General Public License as published by the Free | |
| 10 Software Foundation; either version 3, or (at your option) any later | |
| 11 version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 | |
| 23 #ifndef LIBCPP_SYSTEM_H | |
| 24 #define LIBCPP_SYSTEM_H | |
| 25 | |
| 26 /* We must include stdarg.h before stdio.h. */ | |
| 27 #include <stdarg.h> | |
| 28 | |
| 29 #ifdef HAVE_STDDEF_H | |
| 30 # include <stddef.h> | |
| 31 #endif | |
|
67
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
|
32 #ifdef HAVE_STDINT_H |
|
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
|
33 # include <stdint.h> |
|
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
|
34 #endif |
|
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
|
35 #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:
0
diff
changeset
|
36 # include <inttypes.h> |
|
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
|
37 #endif |
| 0 | 38 |
| 39 #include <stdio.h> | |
| 40 | |
| 41 /* Define a generic NULL if one hasn't already been defined. */ | |
| 42 #ifndef NULL | |
| 43 #define NULL 0 | |
| 44 #endif | |
| 45 | |
| 46 /* Use the unlocked open routines from libiberty. */ | |
| 47 #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE) | |
| 48 #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE) | |
| 49 #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM) | |
| 50 | |
| 51 /* The compiler is not a multi-threaded application and therefore we | |
| 52 do not have to use the locking functions. In fact, using the locking | |
| 53 functions can cause the compiler to be significantly slower under | |
| 54 I/O bound conditions (such as -g -O0 on very large source files). | |
| 55 | |
| 56 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio | |
| 57 code is multi-thread safe by default. If it is set to 0, then do | |
| 58 not worry about using the _unlocked functions. | |
| 59 | |
| 60 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are | |
| 61 extensions and need to be prototyped by hand (since we do not | |
| 62 define _GNU_SOURCE). */ | |
| 63 | |
| 64 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED | |
| 65 | |
| 66 # ifdef HAVE_PUTC_UNLOCKED | |
| 67 # undef putc | |
| 68 # define putc(C, Stream) putc_unlocked (C, Stream) | |
| 69 # endif | |
| 70 # ifdef HAVE_PUTCHAR_UNLOCKED | |
| 71 # undef putchar | |
| 72 # define putchar(C) putchar_unlocked (C) | |
| 73 # endif | |
| 74 # ifdef HAVE_GETC_UNLOCKED | |
| 75 # undef getc | |
| 76 # define getc(Stream) getc_unlocked (Stream) | |
| 77 # endif | |
| 78 # ifdef HAVE_GETCHAR_UNLOCKED | |
| 79 # undef getchar | |
| 80 # define getchar() getchar_unlocked () | |
| 81 # endif | |
| 82 # ifdef HAVE_FPUTC_UNLOCKED | |
| 83 # undef fputc | |
| 84 # define fputc(C, Stream) fputc_unlocked (C, Stream) | |
| 85 # endif | |
| 86 | |
| 87 # ifdef HAVE_CLEARERR_UNLOCKED | |
| 88 # undef clearerr | |
| 89 # define clearerr(Stream) clearerr_unlocked (Stream) | |
| 90 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED | |
| 91 extern void clearerr_unlocked (FILE *); | |
| 92 # endif | |
| 93 # endif | |
| 94 # ifdef HAVE_FEOF_UNLOCKED | |
| 95 # undef feof | |
| 96 # define feof(Stream) feof_unlocked (Stream) | |
| 97 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED | |
| 98 extern int feof_unlocked (FILE *); | |
| 99 # endif | |
| 100 # endif | |
| 101 # ifdef HAVE_FILENO_UNLOCKED | |
| 102 # undef fileno | |
| 103 # define fileno(Stream) fileno_unlocked (Stream) | |
| 104 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED | |
| 105 extern int fileno_unlocked (FILE *); | |
| 106 # endif | |
| 107 # endif | |
| 108 # ifdef HAVE_FFLUSH_UNLOCKED | |
| 109 # undef fflush | |
| 110 # define fflush(Stream) fflush_unlocked (Stream) | |
| 111 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED | |
| 112 extern int fflush_unlocked (FILE *); | |
| 113 # endif | |
| 114 # endif | |
| 115 # ifdef HAVE_FGETC_UNLOCKED | |
| 116 # undef fgetc | |
| 117 # define fgetc(Stream) fgetc_unlocked (Stream) | |
| 118 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED | |
| 119 extern int fgetc_unlocked (FILE *); | |
| 120 # endif | |
| 121 # endif | |
| 122 # ifdef HAVE_FGETS_UNLOCKED | |
| 123 # undef fgets | |
| 124 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream) | |
| 125 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED | |
| 126 extern char *fgets_unlocked (char *, int, FILE *); | |
| 127 # endif | |
| 128 # endif | |
| 129 # ifdef HAVE_FPUTS_UNLOCKED | |
| 130 # undef fputs | |
| 131 # define fputs(String, Stream) fputs_unlocked (String, Stream) | |
| 132 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED | |
| 133 extern int fputs_unlocked (const char *, FILE *); | |
| 134 # endif | |
| 135 # endif | |
| 136 # ifdef HAVE_FERROR_UNLOCKED | |
| 137 # undef ferror | |
| 138 # define ferror(Stream) ferror_unlocked (Stream) | |
| 139 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED | |
| 140 extern int ferror_unlocked (FILE *); | |
| 141 # endif | |
| 142 # endif | |
| 143 # ifdef HAVE_FREAD_UNLOCKED | |
| 144 # undef fread | |
| 145 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream) | |
| 146 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED | |
| 147 extern size_t fread_unlocked (void *, size_t, size_t, FILE *); | |
| 148 # endif | |
| 149 # endif | |
| 150 # ifdef HAVE_FWRITE_UNLOCKED | |
| 151 # undef fwrite | |
| 152 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) | |
| 153 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED | |
| 154 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *); | |
| 155 # endif | |
| 156 # endif | |
| 157 # ifdef HAVE_FPRINTF_UNLOCKED | |
| 158 # undef fprintf | |
| 159 /* We can't use a function-like macro here because we don't know if | |
| 160 we have varargs macros. */ | |
| 161 # define fprintf fprintf_unlocked | |
| 162 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED | |
| 163 extern int fprintf_unlocked (FILE *, const char *, ...); | |
| 164 # endif | |
| 165 # endif | |
| 166 | |
| 167 #endif | |
| 168 | |
| 169 /* ??? Glibc's fwrite/fread_unlocked macros cause | |
| 170 "warning: signed and unsigned type in conditional expression". */ | |
| 171 #undef fread_unlocked | |
| 172 #undef fwrite_unlocked | |
| 173 | |
| 174 #include <sys/types.h> | |
| 175 #include <errno.h> | |
| 176 | |
| 177 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO | |
| 178 extern int errno; | |
| 179 #endif | |
| 180 | |
| 181 /* Some of glibc's string inlines cause warnings. Plus we'd rather | |
| 182 rely on (and therefore test) GCC's string builtins. */ | |
| 183 #define __NO_STRING_INLINES | |
| 184 | |
| 185 #ifdef STRING_WITH_STRINGS | |
| 186 # include <string.h> | |
| 187 # include <strings.h> | |
| 188 #else | |
| 189 # ifdef HAVE_STRING_H | |
| 190 # include <string.h> | |
| 191 # else | |
| 192 # ifdef HAVE_STRINGS_H | |
| 193 # include <strings.h> | |
| 194 # endif | |
| 195 # endif | |
| 196 #endif | |
| 197 | |
| 198 #ifdef HAVE_STDLIB_H | |
| 199 # include <stdlib.h> | |
| 200 #endif | |
| 201 | |
| 202 #ifdef HAVE_UNISTD_H | |
| 203 # include <unistd.h> | |
| 204 #endif | |
| 205 | |
| 206 #if HAVE_LIMITS_H | |
| 207 # include <limits.h> | |
| 208 #endif | |
| 209 | |
| 210 /* Infrastructure for defining missing _MAX and _MIN macros. Note that | |
| 211 macros defined with these cannot be used in #if. */ | |
| 212 | |
| 213 /* The extra casts work around common compiler bugs. */ | |
| 214 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) | |
| 215 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0. | |
| 216 It is necessary at least when t == time_t. */ | |
| 217 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ | |
| 218 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0)) | |
| 219 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) | |
| 220 | |
| 221 /* Use that infrastructure to provide a few constants. */ | |
| 222 #ifndef UCHAR_MAX | |
| 223 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) | |
| 224 #endif | |
| 225 | |
| 226 #ifdef TIME_WITH_SYS_TIME | |
| 227 # include <sys/time.h> | |
| 228 # include <time.h> | |
| 229 #else | |
| 230 # if HAVE_SYS_TIME_H | |
| 231 # include <sys/time.h> | |
| 232 # else | |
| 233 # ifdef HAVE_TIME_H | |
| 234 # include <time.h> | |
| 235 # endif | |
| 236 # endif | |
| 237 #endif | |
| 238 | |
| 239 #ifdef HAVE_FCNTL_H | |
| 240 # include <fcntl.h> | |
| 241 #else | |
| 242 # ifdef HAVE_SYS_FILE_H | |
| 243 # include <sys/file.h> | |
| 244 # endif | |
| 245 #endif | |
| 246 | |
| 247 #ifdef HAVE_LOCALE_H | |
| 248 # include <locale.h> | |
| 249 #endif | |
| 250 | |
| 251 #ifdef HAVE_LANGINFO_CODESET | |
| 252 # include <langinfo.h> | |
| 253 #endif | |
| 254 | |
| 255 #ifndef HAVE_SETLOCALE | |
| 256 # define setlocale(category, locale) (locale) | |
| 257 #endif | |
| 258 | |
| 259 #ifdef ENABLE_NLS | |
| 260 #include <libintl.h> | |
| 261 #else | |
| 262 /* Stubs. */ | |
| 263 # undef dgettext | |
| 264 # define dgettext(package, msgid) (msgid) | |
| 265 #endif | |
| 266 | |
| 267 #ifndef _ | |
| 268 # define _(msgid) dgettext (PACKAGE, msgid) | |
| 269 #endif | |
| 270 | |
| 271 #ifndef N_ | |
| 272 # define N_(msgid) msgid | |
| 273 #endif | |
| 274 | |
| 275 /* Some systems define these in, e.g., param.h. We undefine these names | |
| 276 here to avoid the warnings. We prefer to use our definitions since we | |
| 277 know they are correct. */ | |
| 278 | |
| 279 #undef MIN | |
| 280 #undef MAX | |
| 281 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) | |
| 282 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) | |
| 283 | |
| 284 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they | |
| 285 are defined to 0 then we must provide the relevant declaration | |
| 286 here. These checks will be in the undefined state while configure | |
| 287 is running so be careful to test "defined (HAVE_DECL_*)". */ | |
| 288 | |
| 289 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT | |
| 290 extern void abort (void); | |
| 291 #endif | |
| 292 | |
| 293 #if HAVE_SYS_STAT_H | |
| 294 # include <sys/stat.h> | |
| 295 #endif | |
| 296 | |
| 297 /* Test if something is a normal file. */ | |
| 298 #ifndef S_ISREG | |
| 299 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
| 300 #endif | |
| 301 | |
| 302 /* Test if something is a directory. */ | |
| 303 #ifndef S_ISDIR | |
| 304 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
| 305 #endif | |
| 306 | |
| 307 /* Test if something is a character special file. */ | |
| 308 #ifndef S_ISCHR | |
| 309 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) | |
| 310 #endif | |
| 311 | |
| 312 /* Test if something is a block special file. */ | |
| 313 #ifndef S_ISBLK | |
| 314 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) | |
| 315 #endif | |
| 316 | |
| 317 /* Test if something is a socket. */ | |
| 318 #ifndef S_ISSOCK | |
| 319 # ifdef S_IFSOCK | |
| 320 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) | |
| 321 # else | |
| 322 # define S_ISSOCK(m) 0 | |
| 323 # endif | |
| 324 #endif | |
| 325 | |
| 326 /* Test if something is a FIFO. */ | |
| 327 #ifndef S_ISFIFO | |
| 328 # ifdef S_IFIFO | |
| 329 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) | |
| 330 # else | |
| 331 # define S_ISFIFO(m) 0 | |
| 332 # endif | |
| 333 #endif | |
| 334 | |
| 335 /* Approximate O_NOCTTY and O_BINARY. */ | |
| 336 #ifndef O_NOCTTY | |
| 337 #define O_NOCTTY 0 | |
| 338 #endif | |
| 339 #ifndef O_BINARY | |
| 340 # define O_BINARY 0 | |
| 341 #endif | |
| 342 | |
| 343 /* Filename handling macros. */ | |
| 344 #include "filenames.h" | |
| 345 | |
| 346 /* Get libiberty declarations. */ | |
| 347 #include "libiberty.h" | |
| 348 #include "safe-ctype.h" | |
| 349 | |
| 350 /* 1 if we have C99 designated initializers. | |
| 351 | |
| 352 ??? C99 designated initializers are not supported by most C++ | |
| 353 compilers, including G++. -- gdr, 2005-05-18 */ | |
| 354 #if !defined(HAVE_DESIGNATED_INITIALIZERS) | |
| 355 #define HAVE_DESIGNATED_INITIALIZERS \ | |
| 356 ((!defined(__cplusplus) && (GCC_VERSION >= 2007)) \ | |
| 357 || (__STDC_VERSION__ >= 199901L)) | |
| 358 #endif | |
| 359 | |
| 360 /* Be conservative and only use enum bitfields with GCC. | |
| 361 FIXME: provide a complete autoconf test for buggy enum bitfields. */ | |
| 362 | |
| 363 #if (GCC_VERSION > 2000) | |
| 364 #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE | |
| 365 #else | |
| 366 #define ENUM_BITFIELD(TYPE) unsigned int | |
| 367 #endif | |
| 368 | |
| 369 #ifndef offsetof | |
| 370 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) | |
| 371 #endif | |
| 372 | |
| 373 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that | |
| 374 the most likely value of A is B. This feature was added at some point | |
| 375 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ | |
| 376 #if (GCC_VERSION < 3000) | |
| 377 #define __builtin_expect(a, b) (a) | |
| 378 #endif | |
| 379 | |
| 380 /* Provide a fake boolean type. We make no attempt to use the | |
| 381 C99 _Bool, as it may not be available in the bootstrap compiler, | |
| 382 and even if it is, it is liable to be buggy. | |
| 383 This must be after all inclusion of system headers, as some of | |
| 384 them will mess us up. */ | |
| 385 #undef bool | |
| 386 #undef true | |
| 387 #undef false | |
| 388 #undef TRUE | |
| 389 #undef FALSE | |
| 390 | |
| 391 #ifndef __cplusplus | |
| 392 #define bool unsigned char | |
| 393 #endif | |
| 394 #define true 1 | |
| 395 #define false 0 | |
| 396 | |
| 397 /* Some compilers do not allow the use of unsigned char in bitfields. */ | |
| 398 #define BOOL_BITFIELD unsigned int | |
| 399 | |
| 400 /* Poison identifiers we do not want to use. */ | |
| 401 #if (GCC_VERSION >= 3000) | |
| 402 #undef calloc | |
| 403 #undef strdup | |
| 404 #undef malloc | |
| 405 #undef realloc | |
| 406 #pragma GCC poison calloc strdup | |
| 407 #pragma GCC poison malloc realloc | |
| 408 | |
| 409 /* Libiberty macros that are no longer used in GCC. */ | |
| 410 #undef ANSI_PROTOTYPES | |
| 411 #undef PTR_CONST | |
| 412 #undef LONG_DOUBLE | |
| 413 #undef VPARAMS | |
| 414 #undef VA_OPEN | |
| 415 #undef VA_FIXEDARG | |
| 416 #undef VA_CLOSE | |
| 417 #undef VA_START | |
| 418 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ | |
| 419 VA_FIXEDARG VA_CLOSE VA_START | |
| 420 | |
| 421 /* Note: not all uses of the `index' token (e.g. variable names and | |
| 422 structure members) have been eliminated. */ | |
| 423 #undef bcopy | |
| 424 #undef bzero | |
| 425 #undef bcmp | |
| 426 #undef rindex | |
| 427 #pragma GCC poison bcopy bzero bcmp rindex | |
| 428 | |
| 429 #endif /* GCC >= 3.0 */ | |
| 430 #endif /* ! LIBCPP_SYSTEM_H */ |