Mercurial > hg > CbC > CbC_gcc
annotate gcc/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 | b7f97abdc517 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Get common system includes and various definitions and declarations based |
| 2 on autoconf macros. | |
|
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3 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
|
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4 2009, 2010 |
| 0 | 5 Free Software Foundation, Inc. |
| 6 | |
| 7 This file is part of GCC. | |
| 8 | |
| 9 GCC is free software; you can redistribute it and/or modify it under | |
| 10 the terms of the GNU General Public License as published by the Free | |
| 11 Software Foundation; either version 3, or (at your option) any later | |
| 12 version. | |
| 13 | |
| 14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 15 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along with GCC; see the file COPYING3. If not see | |
| 21 <http://www.gnu.org/licenses/>. */ | |
| 22 | |
| 23 | |
| 24 #ifndef GCC_SYSTEM_H | |
| 25 #define GCC_SYSTEM_H | |
| 26 | |
| 27 /* We must include stdarg.h before stdio.h. */ | |
| 28 #include <stdarg.h> | |
| 29 | |
| 30 #ifndef va_copy | |
| 31 # ifdef __va_copy | |
| 32 # define va_copy(d,s) __va_copy((d),(s)) | |
| 33 # else | |
| 34 # define va_copy(d,s) ((d) = (s)) | |
| 35 # endif | |
| 36 #endif | |
| 37 | |
| 38 #ifdef HAVE_STDDEF_H | |
| 39 # include <stddef.h> | |
| 40 #endif | |
| 41 | |
| 42 #include <stdio.h> | |
| 43 | |
| 44 /* Define a generic NULL if one hasn't already been defined. */ | |
| 45 #ifndef NULL | |
| 46 #define NULL 0 | |
| 47 #endif | |
| 48 | |
| 49 /* Use the unlocked open routines from libiberty. */ | |
|
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50 #ifdef fopen /* fopen is a #define on VMS. */ |
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51 #undef fopen |
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52 #endif |
| 0 | 53 #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE) |
| 54 #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE) | |
| 55 #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM) | |
| 56 | |
| 57 /* The compiler is not a multi-threaded application and therefore we | |
| 58 do not have to use the locking functions. In fact, using the locking | |
| 59 functions can cause the compiler to be significantly slower under | |
| 60 I/O bound conditions (such as -g -O0 on very large source files). | |
| 61 | |
| 62 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio | |
| 63 code is multi-thread safe by default. If it is set to 0, then do | |
| 64 not worry about using the _unlocked functions. | |
| 65 | |
| 66 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are | |
| 67 extensions and need to be prototyped by hand (since we do not | |
| 68 define _GNU_SOURCE). */ | |
| 69 | |
| 70 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED | |
| 71 | |
| 72 # ifdef HAVE_PUTC_UNLOCKED | |
| 73 # undef putc | |
| 74 # define putc(C, Stream) putc_unlocked (C, Stream) | |
| 75 # endif | |
| 76 # ifdef HAVE_PUTCHAR_UNLOCKED | |
| 77 # undef putchar | |
| 78 # define putchar(C) putchar_unlocked (C) | |
| 79 # endif | |
| 80 # ifdef HAVE_GETC_UNLOCKED | |
| 81 # undef getc | |
| 82 # define getc(Stream) getc_unlocked (Stream) | |
| 83 # endif | |
| 84 # ifdef HAVE_GETCHAR_UNLOCKED | |
| 85 # undef getchar | |
| 86 # define getchar() getchar_unlocked () | |
| 87 # endif | |
| 88 # ifdef HAVE_FPUTC_UNLOCKED | |
| 89 # undef fputc | |
| 90 # define fputc(C, Stream) fputc_unlocked (C, Stream) | |
| 91 # endif | |
| 92 | |
| 93 # ifdef HAVE_CLEARERR_UNLOCKED | |
| 94 # undef clearerr | |
| 95 # define clearerr(Stream) clearerr_unlocked (Stream) | |
| 96 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED | |
| 97 extern void clearerr_unlocked (FILE *); | |
| 98 # endif | |
| 99 # endif | |
| 100 # ifdef HAVE_FEOF_UNLOCKED | |
| 101 # undef feof | |
| 102 # define feof(Stream) feof_unlocked (Stream) | |
| 103 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED | |
| 104 extern int feof_unlocked (FILE *); | |
| 105 # endif | |
| 106 # endif | |
| 107 # ifdef HAVE_FILENO_UNLOCKED | |
| 108 # undef fileno | |
| 109 # define fileno(Stream) fileno_unlocked (Stream) | |
| 110 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED | |
| 111 extern int fileno_unlocked (FILE *); | |
| 112 # endif | |
| 113 # endif | |
| 114 # ifdef HAVE_FFLUSH_UNLOCKED | |
| 115 # undef fflush | |
| 116 # define fflush(Stream) fflush_unlocked (Stream) | |
| 117 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED | |
| 118 extern int fflush_unlocked (FILE *); | |
| 119 # endif | |
| 120 # endif | |
| 121 # ifdef HAVE_FGETC_UNLOCKED | |
| 122 # undef fgetc | |
| 123 # define fgetc(Stream) fgetc_unlocked (Stream) | |
| 124 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED | |
| 125 extern int fgetc_unlocked (FILE *); | |
| 126 # endif | |
| 127 # endif | |
| 128 # ifdef HAVE_FGETS_UNLOCKED | |
| 129 # undef fgets | |
| 130 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream) | |
| 131 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED | |
| 132 extern char *fgets_unlocked (char *, int, FILE *); | |
| 133 # endif | |
| 134 # endif | |
| 135 # ifdef HAVE_FPUTS_UNLOCKED | |
| 136 # undef fputs | |
| 137 # define fputs(String, Stream) fputs_unlocked (String, Stream) | |
| 138 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED | |
| 139 extern int fputs_unlocked (const char *, FILE *); | |
| 140 # endif | |
| 141 # endif | |
| 142 # ifdef HAVE_FERROR_UNLOCKED | |
| 143 # undef ferror | |
| 144 # define ferror(Stream) ferror_unlocked (Stream) | |
| 145 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED | |
| 146 extern int ferror_unlocked (FILE *); | |
| 147 # endif | |
| 148 # endif | |
| 149 # ifdef HAVE_FREAD_UNLOCKED | |
| 150 # undef fread | |
| 151 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream) | |
| 152 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED | |
| 153 extern size_t fread_unlocked (void *, size_t, size_t, FILE *); | |
| 154 # endif | |
| 155 # endif | |
| 156 # ifdef HAVE_FWRITE_UNLOCKED | |
| 157 # undef fwrite | |
| 158 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) | |
| 159 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED | |
| 160 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *); | |
| 161 # endif | |
| 162 # endif | |
| 163 # ifdef HAVE_FPRINTF_UNLOCKED | |
| 164 # undef fprintf | |
| 165 /* We can't use a function-like macro here because we don't know if | |
| 166 we have varargs macros. */ | |
| 167 # define fprintf fprintf_unlocked | |
| 168 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED | |
| 169 extern int fprintf_unlocked (FILE *, const char *, ...); | |
| 170 # endif | |
| 171 # endif | |
| 172 | |
| 173 #endif | |
| 174 | |
| 175 /* ??? Glibc's fwrite/fread_unlocked macros cause | |
| 176 "warning: signed and unsigned type in conditional expression". */ | |
| 177 #undef fread_unlocked | |
| 178 #undef fwrite_unlocked | |
| 179 | |
| 180 /* There are an extraordinary number of issues with <ctype.h>. | |
| 181 The last straw is that it varies with the locale. Use libiberty's | |
| 182 replacement instead. */ | |
|
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183 #include "safe-ctype.h" |
| 0 | 184 |
| 185 #include <sys/types.h> | |
| 186 | |
| 187 #include <errno.h> | |
| 188 | |
| 189 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO | |
| 190 extern int errno; | |
| 191 #endif | |
| 192 | |
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193 #ifdef __cplusplus |
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194 # include <cstring> |
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195 #endif |
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196 |
| 0 | 197 /* Some of glibc's string inlines cause warnings. Plus we'd rather |
| 198 rely on (and therefore test) GCC's string builtins. */ | |
| 199 #define __NO_STRING_INLINES | |
| 200 | |
| 201 #ifdef STRING_WITH_STRINGS | |
| 202 # include <string.h> | |
| 203 # include <strings.h> | |
| 204 #else | |
| 205 # ifdef HAVE_STRING_H | |
| 206 # include <string.h> | |
| 207 # else | |
| 208 # ifdef HAVE_STRINGS_H | |
| 209 # include <strings.h> | |
| 210 # endif | |
| 211 # endif | |
| 212 #endif | |
| 213 | |
| 214 #ifdef HAVE_STDLIB_H | |
| 215 # include <stdlib.h> | |
| 216 #endif | |
| 217 | |
| 218 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and | |
| 219 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively, | |
| 220 or 0 and 1 if those macros are not defined. */ | |
| 221 #ifndef SUCCESS_EXIT_CODE | |
| 222 # ifdef EXIT_SUCCESS | |
| 223 # define SUCCESS_EXIT_CODE EXIT_SUCCESS | |
| 224 # else | |
| 225 # define SUCCESS_EXIT_CODE 0 | |
| 226 # endif | |
| 227 #endif | |
| 228 | |
| 229 #ifndef FATAL_EXIT_CODE | |
| 230 # ifdef EXIT_FAILURE | |
| 231 # define FATAL_EXIT_CODE EXIT_FAILURE | |
| 232 # else | |
| 233 # define FATAL_EXIT_CODE 1 | |
| 234 # endif | |
| 235 #endif | |
| 236 | |
| 237 #define ICE_EXIT_CODE 4 | |
| 238 | |
| 239 #ifdef HAVE_UNISTD_H | |
| 240 # include <unistd.h> | |
| 241 #endif | |
| 242 | |
| 243 #ifdef HAVE_SYS_PARAM_H | |
| 244 # include <sys/param.h> | |
| 245 /* We use this identifier later and it appears in some vendor param.h's. */ | |
| 246 # undef PREFETCH | |
| 247 #endif | |
| 248 | |
| 249 #if HAVE_LIMITS_H | |
| 250 # include <limits.h> | |
| 251 #endif | |
| 252 | |
| 253 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */ | |
| 254 #include "hwint.h" | |
| 255 | |
| 256 /* A macro to determine whether a VALUE lies inclusively within a | |
| 257 certain range without evaluating the VALUE more than once. This | |
| 258 macro won't warn if the VALUE is unsigned and the LOWER bound is | |
| 259 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER | |
| 260 bound *is* evaluated twice, and LOWER must not be greater than | |
| 261 UPPER. However the bounds themselves can be either positive or | |
| 262 negative. */ | |
| 263 #define IN_RANGE(VALUE, LOWER, UPPER) \ | |
| 264 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \ | |
| 265 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER)) | |
| 266 | |
| 267 /* Infrastructure for defining missing _MAX and _MIN macros. Note that | |
| 268 macros defined with these cannot be used in #if. */ | |
| 269 | |
| 270 /* The extra casts work around common compiler bugs. */ | |
| 271 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) | |
| 272 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0. | |
| 273 It is necessary at least when t == time_t. */ | |
| 274 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ | |
| 275 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0)) | |
| 276 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) | |
| 277 | |
| 278 /* Use that infrastructure to provide a few constants. */ | |
| 279 #ifndef UCHAR_MAX | |
| 280 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) | |
| 281 #endif | |
| 282 | |
| 283 #ifdef TIME_WITH_SYS_TIME | |
| 284 # include <sys/time.h> | |
| 285 # include <time.h> | |
| 286 #else | |
| 287 # if HAVE_SYS_TIME_H | |
| 288 # include <sys/time.h> | |
| 289 # else | |
| 290 # ifdef HAVE_TIME_H | |
| 291 # include <time.h> | |
| 292 # endif | |
| 293 # endif | |
| 294 #endif | |
| 295 | |
| 296 #ifdef HAVE_FCNTL_H | |
| 297 # include <fcntl.h> | |
| 298 #else | |
| 299 # ifdef HAVE_SYS_FILE_H | |
| 300 # include <sys/file.h> | |
| 301 # endif | |
| 302 #endif | |
| 303 | |
| 304 #ifndef SEEK_SET | |
| 305 # define SEEK_SET 0 | |
| 306 # define SEEK_CUR 1 | |
| 307 # define SEEK_END 2 | |
| 308 #endif | |
| 309 #ifndef F_OK | |
| 310 # define F_OK 0 | |
| 311 # define X_OK 1 | |
| 312 # define W_OK 2 | |
| 313 # define R_OK 4 | |
| 314 #endif | |
| 315 #ifndef O_RDONLY | |
| 316 # define O_RDONLY 0 | |
| 317 #endif | |
| 318 #ifndef O_WRONLY | |
| 319 # define O_WRONLY 1 | |
| 320 #endif | |
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321 #ifndef O_BINARY |
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322 # define O_BINARY 0 |
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323 #endif |
| 0 | 324 |
| 325 /* Some systems define these in, e.g., param.h. We undefine these names | |
| 326 here to avoid the warnings. We prefer to use our definitions since we | |
| 327 know they are correct. */ | |
| 328 | |
| 329 #undef MIN | |
| 330 #undef MAX | |
| 331 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) | |
| 332 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) | |
| 333 | |
| 334 /* Returns the least number N such that N * Y >= X. */ | |
| 335 #define CEIL(x,y) (((x) + (y) - 1) / (y)) | |
| 336 | |
| 337 #ifdef HAVE_SYS_WAIT_H | |
| 338 #include <sys/wait.h> | |
| 339 #endif | |
| 340 | |
| 341 #ifndef WIFSIGNALED | |
| 342 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) | |
| 343 #endif | |
| 344 #ifndef WTERMSIG | |
| 345 #define WTERMSIG(S) ((S) & 0x7f) | |
| 346 #endif | |
| 347 #ifndef WIFEXITED | |
| 348 #define WIFEXITED(S) (((S) & 0xff) == 0) | |
| 349 #endif | |
| 350 #ifndef WEXITSTATUS | |
| 351 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) | |
| 352 #endif | |
| 353 #ifndef WSTOPSIG | |
| 354 #define WSTOPSIG WEXITSTATUS | |
| 355 #endif | |
| 356 #ifndef WCOREDUMP | |
| 357 #define WCOREDUMP(S) ((S) & WCOREFLG) | |
| 358 #endif | |
| 359 #ifndef WCOREFLG | |
| 360 #define WCOREFLG 0200 | |
| 361 #endif | |
| 362 | |
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363 #include <signal.h> |
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364 #if !defined (SIGCHLD) && defined (SIGCLD) |
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365 # define SIGCHLD SIGCLD |
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366 #endif |
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367 |
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368 #ifdef HAVE_SYS_MMAN_H |
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369 # include <sys/mman.h> |
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370 #endif |
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371 |
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372 #ifndef MAP_FAILED |
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373 # define MAP_FAILED ((void *)-1) |
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374 #endif |
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375 |
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376 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON) |
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377 # define MAP_ANONYMOUS MAP_ANON |
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378 #endif |
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379 |
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380 #ifdef HAVE_SYS_RESOURCE_H |
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381 # include <sys/resource.h> |
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382 #endif |
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383 |
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384 #ifdef HAVE_SYS_TIMES_H |
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385 # include <sys/times.h> |
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386 #endif |
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387 |
| 0 | 388 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they |
| 389 are defined to 0 then we must provide the relevant declaration | |
| 390 here. These checks will be in the undefined state while configure | |
| 391 is running so be careful to test "defined (HAVE_DECL_*)". */ | |
| 392 | |
| 393 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF | |
| 394 extern double atof (const char *); | |
| 395 #endif | |
| 396 | |
| 397 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL | |
| 398 extern long atol (const char *); | |
| 399 #endif | |
| 400 | |
| 401 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE | |
| 402 extern void free (void *); | |
| 403 #endif | |
| 404 | |
| 405 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD | |
| 406 extern char *getcwd (char *, size_t); | |
| 407 #endif | |
| 408 | |
| 409 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV | |
| 410 extern char *getenv (const char *); | |
| 411 #endif | |
| 412 | |
| 413 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT | |
| 414 extern int getopt (int, char * const *, const char *); | |
| 415 #endif | |
| 416 | |
| 417 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE | |
| 418 extern int getpagesize (void); | |
| 419 #endif | |
| 420 | |
| 421 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD | |
| 422 extern char *getwd (char *); | |
| 423 #endif | |
| 424 | |
| 425 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK | |
| 426 extern void *sbrk (int); | |
| 427 #endif | |
| 428 | |
| 429 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR | |
| 430 extern char *strstr (const char *, const char *); | |
| 431 #endif | |
| 432 | |
| 433 #ifdef HAVE_MALLOC_H | |
| 434 #include <malloc.h> | |
| 435 #endif | |
| 436 | |
| 437 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC | |
| 438 extern void *malloc (size_t); | |
| 439 #endif | |
| 440 | |
| 441 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC | |
| 442 extern void *calloc (size_t, size_t); | |
| 443 #endif | |
| 444 | |
| 445 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC | |
| 446 extern void *realloc (void *, size_t); | |
| 447 #endif | |
| 448 | |
|
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449 #ifdef HAVE_STDINT_H |
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450 #include <stdint.h> |
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451 #endif |
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452 |
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453 #ifdef HAVE_INTTYPES_H |
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454 #include <inttypes.h> |
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455 #endif |
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456 |
| 0 | 457 /* If the system doesn't provide strsignal, we get it defined in |
| 458 libiberty but no declaration is supplied. */ | |
| 459 #if !defined (HAVE_STRSIGNAL) \ | |
| 460 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL) | |
| 461 # ifndef strsignal | |
| 462 extern const char *strsignal (int); | |
| 463 # endif | |
| 464 #endif | |
| 465 | |
| 466 #ifdef HAVE_GETRLIMIT | |
| 467 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT | |
| 468 # ifndef getrlimit | |
| 469 struct rlimit; | |
| 470 extern int getrlimit (int, struct rlimit *); | |
| 471 # endif | |
| 472 # endif | |
| 473 #endif | |
| 474 | |
| 475 #ifdef HAVE_SETRLIMIT | |
| 476 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT | |
| 477 # ifndef setrlimit | |
| 478 struct rlimit; | |
| 479 extern int setrlimit (int, const struct rlimit *); | |
| 480 # endif | |
| 481 # endif | |
| 482 #endif | |
| 483 | |
| 484 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT | |
| 485 extern void abort (void); | |
| 486 #endif | |
| 487 | |
| 488 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF | |
| 489 extern int snprintf (char *, size_t, const char *, ...); | |
| 490 #endif | |
| 491 | |
| 492 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF | |
| 493 extern int vsnprintf(char *, size_t, const char *, va_list); | |
| 494 #endif | |
| 495 | |
| 496 /* 1 if we have C99 designated initializers. */ | |
| 497 #if !defined(HAVE_DESIGNATED_INITIALIZERS) | |
| 498 #define HAVE_DESIGNATED_INITIALIZERS \ | |
|
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499 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \ |
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500 && !defined(__cplusplus)) |
| 0 | 501 #endif |
| 502 | |
| 503 #if HAVE_SYS_STAT_H | |
| 504 # include <sys/stat.h> | |
| 505 #endif | |
| 506 | |
| 507 /* Test if something is a normal file. */ | |
| 508 #ifndef S_ISREG | |
| 509 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
| 510 #endif | |
| 511 | |
| 512 /* Test if something is a directory. */ | |
| 513 #ifndef S_ISDIR | |
| 514 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
| 515 #endif | |
| 516 | |
| 517 /* Test if something is a character special file. */ | |
| 518 #ifndef S_ISCHR | |
| 519 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) | |
| 520 #endif | |
| 521 | |
| 522 /* Test if something is a block special file. */ | |
| 523 #ifndef S_ISBLK | |
| 524 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) | |
| 525 #endif | |
| 526 | |
| 527 /* Test if something is a socket. */ | |
| 528 #ifndef S_ISSOCK | |
| 529 # ifdef S_IFSOCK | |
| 530 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) | |
| 531 # else | |
| 532 # define S_ISSOCK(m) 0 | |
| 533 # endif | |
| 534 #endif | |
| 535 | |
| 536 /* Test if something is a FIFO. */ | |
| 537 #ifndef S_ISFIFO | |
| 538 # ifdef S_IFIFO | |
| 539 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) | |
| 540 # else | |
| 541 # define S_ISFIFO(m) 0 | |
| 542 # endif | |
| 543 #endif | |
| 544 | |
| 545 /* Define well known filenos if the system does not define them. */ | |
| 546 #ifndef STDIN_FILENO | |
| 547 # define STDIN_FILENO 0 | |
| 548 #endif | |
| 549 #ifndef STDOUT_FILENO | |
| 550 # define STDOUT_FILENO 1 | |
| 551 #endif | |
| 552 #ifndef STDERR_FILENO | |
| 553 # define STDERR_FILENO 2 | |
| 554 #endif | |
| 555 | |
| 556 /* Some systems have mkdir that takes a single argument. */ | |
| 557 #ifdef MKDIR_TAKES_ONE_ARG | |
| 558 # define mkdir(a,b) mkdir(a) | |
| 559 #endif | |
| 560 | |
|
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561 #ifndef HAVE_KILL |
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562 # define kill(p,s) raise(s) |
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563 #endif |
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564 |
|
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565 /* Provide a way to print an address via printf. */ |
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566 #ifndef HOST_PTR_PRINTF |
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567 #define HOST_PTR_PRINTF "%p" |
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568 #endif /* ! HOST_PTR_PRINTF */ |
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569 |
| 0 | 570 /* By default, colon separates directories in a path. */ |
| 571 #ifndef PATH_SEPARATOR | |
| 572 #define PATH_SEPARATOR ':' | |
| 573 #endif | |
| 574 | |
| 575 /* Filename handling macros. */ | |
| 576 #include "filenames.h" | |
| 577 | |
| 578 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ | |
| 579 #ifndef DIR_SEPARATOR | |
| 580 # define DIR_SEPARATOR '/' | |
| 581 # ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
| 582 # define DIR_SEPARATOR_2 '\\' | |
| 583 # endif | |
| 584 #endif | |
| 585 | |
|
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586 #if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H) |
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587 /* If plugin support is enabled, we could use libdl. */ |
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588 #include <dlfcn.h> |
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589 #endif |
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590 |
| 0 | 591 /* Get libiberty declarations. */ |
| 592 #include "libiberty.h" | |
| 593 | |
| 594 /* Provide a default for the HOST_BIT_BUCKET. | |
| 595 This suffices for POSIX-like hosts. */ | |
| 596 | |
| 597 #ifndef HOST_BIT_BUCKET | |
| 598 #define HOST_BIT_BUCKET "/dev/null" | |
| 599 #endif | |
| 600 | |
| 601 /* Be conservative and only use enum bitfields with GCC. | |
| 602 FIXME: provide a complete autoconf test for buggy enum bitfields. */ | |
| 603 | |
| 604 #if (GCC_VERSION > 2000) | |
| 605 #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE | |
| 606 #else | |
| 607 #define ENUM_BITFIELD(TYPE) unsigned int | |
| 608 #endif | |
| 609 | |
| 610 #ifndef offsetof | |
| 611 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) | |
| 612 #endif | |
| 613 | |
| 614 /* Various error reporting routines want to use __FUNCTION__. */ | |
| 615 #if (GCC_VERSION < 2007) | |
| 616 #ifndef __FUNCTION__ | |
| 617 #define __FUNCTION__ "?" | |
| 618 #endif /* ! __FUNCTION__ */ | |
| 619 #endif | |
| 620 | |
| 621 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that | |
| 622 the most likely value of A is B. This feature was added at some point | |
| 623 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ | |
| 624 #if (GCC_VERSION < 3000) | |
| 625 #define __builtin_expect(a, b) (a) | |
| 626 #endif | |
| 627 | |
| 628 /* Redefine abort to report an internal error w/o coredump, and | |
| 629 reporting the location of the error in the source file. */ | |
| 630 extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; | |
| 631 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) | |
| 632 | |
| 633 /* Use gcc_assert(EXPR) to test invariants. */ | |
| 634 #if ENABLE_ASSERT_CHECKING | |
| 635 #define gcc_assert(EXPR) \ | |
| 636 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) | |
|
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637 #elif (GCC_VERSION >= 4005) |
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638 #define gcc_assert(EXPR) \ |
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639 ((void)(__builtin_expect(!(EXPR), 0) ? __builtin_unreachable(), 0 : 0)) |
| 0 | 640 #else |
| 641 /* Include EXPR, so that unused variable warnings do not occur. */ | |
| 642 #define gcc_assert(EXPR) ((void)(0 && (EXPR))) | |
| 643 #endif | |
| 644 | |
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645 #ifdef ENABLE_CHECKING |
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646 #define gcc_checking_assert(EXPR) gcc_assert (EXPR) |
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647 #else |
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648 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR))) |
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649 #endif |
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650 |
| 0 | 651 /* Use gcc_unreachable() to mark unreachable locations (like an |
| 652 unreachable default case of a switch. Do not use gcc_assert(0). */ | |
|
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653 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING |
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654 #define gcc_unreachable() __builtin_unreachable() |
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655 #else |
| 0 | 656 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) |
|
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657 #endif |
| 0 | 658 |
| 659 /* Provide a fake boolean type. We make no attempt to use the | |
| 660 C99 _Bool, as it may not be available in the bootstrap compiler, | |
| 661 and even if it is, it is liable to be buggy. | |
| 662 This must be after all inclusion of system headers, as some of | |
| 663 them will mess us up. */ | |
| 664 | |
| 665 #undef TRUE | |
| 666 #undef FALSE | |
| 667 | |
| 668 #ifdef __cplusplus | |
| 669 /* Obsolete. */ | |
| 670 # define TRUE true | |
| 671 # define FALSE false | |
| 672 #else /* !__cplusplus */ | |
| 673 # undef bool | |
| 674 # undef true | |
| 675 # undef false | |
| 676 | |
| 677 # define bool unsigned char | |
| 678 # define true 1 | |
| 679 # define false 0 | |
| 680 | |
| 681 /* Obsolete. */ | |
| 682 # define TRUE true | |
| 683 # define FALSE false | |
| 684 #endif /* !__cplusplus */ | |
| 685 | |
| 686 /* Some compilers do not allow the use of unsigned char in bitfields. */ | |
| 687 #define BOOL_BITFIELD unsigned int | |
| 688 | |
| 689 /* As the last action in this file, we poison the identifiers that | |
| 690 shouldn't be used. Note, luckily gcc-3.0's token-based integrated | |
| 691 preprocessor won't trip on poisoned identifiers that arrive from | |
| 692 the expansion of macros. E.g. #define strrchr rindex, won't error | |
| 693 if rindex is poisoned after this directive is issued and later on | |
| 694 strrchr is called. | |
| 695 | |
| 696 Note: We define bypass macros for the few cases where we really | |
| 697 want to use the libc memory allocation routines. Otherwise we | |
| 698 insist you use the "x" versions from libiberty. */ | |
| 699 | |
| 700 #define really_call_malloc malloc | |
| 701 #define really_call_calloc calloc | |
| 702 #define really_call_realloc realloc | |
| 703 | |
| 704 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC) | |
| 705 /* Flex and bison use malloc and realloc. Yuk. Note that this means | |
| 706 really_call_* cannot be used in a .l or .y file. */ | |
| 707 #define malloc xmalloc | |
| 708 #define realloc xrealloc | |
| 709 #endif | |
| 710 | |
| 711 #if (GCC_VERSION >= 3000) | |
| 712 | |
| 713 /* Note autoconf checks for prototype declarations and includes | |
| 714 system.h while doing so. Only poison these tokens if actually | |
| 715 compiling gcc, so that the autoconf declaration tests for malloc | |
| 716 etc don't spuriously fail. */ | |
| 717 #ifdef IN_GCC | |
| 718 #undef calloc | |
| 719 #undef strdup | |
| 720 #pragma GCC poison calloc strdup | |
| 721 | |
| 722 #if !defined(FLEX_SCANNER) && !defined(YYBISON) | |
| 723 #undef malloc | |
| 724 #undef realloc | |
| 725 #pragma GCC poison malloc realloc | |
| 726 #endif | |
| 727 | |
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728 /* The %m format should be used when GCC's main diagnostic functions |
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729 supporting %m are available, and xstrerror from libiberty |
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730 otherwise. */ |
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731 #undef strerror |
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732 #pragma GCC poison strerror |
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733 |
| 0 | 734 /* Old target macros that have moved to the target hooks structure. */ |
| 735 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ | |
| 736 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ | |
| 737 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \ | |
| 738 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \ | |
| 739 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \ | |
| 740 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \ | |
| 741 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \ | |
| 742 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \ | |
| 743 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \ | |
| 744 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \ | |
| 745 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \ | |
| 746 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \ | |
| 747 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \ | |
| 748 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \ | |
| 749 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \ | |
| 750 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \ | |
| 751 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \ | |
| 752 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \ | |
|
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753 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \ |
| 0 | 754 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ |
| 755 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ | |
| 756 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ | |
| 757 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \ | |
| 758 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \ | |
| 759 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \ | |
| 760 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \ | |
| 761 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \ | |
|
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762 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \ |
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763 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \ |
|
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764 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \ |
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765 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \ |
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766 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \ |
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767 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \ |
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768 LABEL_ALIGN_MAX_SKIP LOOP_ALIGN_MAX_SKIP \ |
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769 LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP JUMP_ALIGN_MAX_SKIP \ |
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770 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \ |
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771 HOT_TEXT_SECTION_NAME |
| 0 | 772 |
| 773 /* Other obsolete target macros, or macros that used to be in target | |
| 774 headers and were not used, and may be obsolete or may never have | |
| 775 been used. */ | |
| 776 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \ | |
| 777 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \ | |
| 778 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ | |
| 779 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ | |
| 780 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ | |
| 781 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ | |
| 782 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \ | |
| 783 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \ | |
| 784 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \ | |
| 785 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \ | |
| 786 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \ | |
| 787 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \ | |
| 788 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \ | |
| 789 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \ | |
| 790 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \ | |
| 791 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \ | |
| 792 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \ | |
| 793 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \ | |
| 794 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \ | |
| 795 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \ | |
| 796 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \ | |
| 797 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \ | |
| 798 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \ | |
| 799 PROMOTED_MODE EXPAND_BUILTIN_VA_END \ | |
| 800 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \ | |
| 801 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \ | |
| 802 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \ | |
| 803 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \ | |
| 804 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \ | |
| 805 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \ | |
| 806 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \ | |
| 807 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \ | |
| 808 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \ | |
| 809 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \ | |
| 810 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \ | |
| 811 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \ | |
| 812 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \ | |
| 813 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \ | |
| 814 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \ | |
| 815 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \ | |
| 816 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \ | |
| 817 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \ | |
| 818 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \ | |
|
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819 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \ |
| 0 | 820 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \ |
| 821 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \ | |
| 822 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \ | |
|
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823 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \ |
|
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824 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \ |
|
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825 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \ |
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826 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \ |
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827 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \ |
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828 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \ |
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829 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \ |
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830 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \ |
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831 USING_SVR4_H SVR4_ASM_SPEC |
| 0 | 832 |
| 833 /* Hooks that are no longer used. */ | |
| 834 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ | |
| 835 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \ | |
| 836 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \ | |
| 837 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \ | |
| 838 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \ | |
|
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839 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \ |
|
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840 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \ |
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841 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \ |
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842 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION |
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843 |
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844 /* Hooks into libgcc2. */ |
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845 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \ |
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846 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN |
| 0 | 847 |
| 848 /* Miscellaneous macros that are no longer used. */ | |
|
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849 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT |
| 0 | 850 |
| 851 /* Libiberty macros that are no longer used in GCC. */ | |
| 852 #undef ANSI_PROTOTYPES | |
| 853 #undef PTR_CONST | |
| 854 #undef LONG_DOUBLE | |
| 855 #undef VPARAMS | |
| 856 #undef VA_OPEN | |
| 857 #undef VA_FIXEDARG | |
| 858 #undef VA_CLOSE | |
| 859 #undef VA_START | |
| 860 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ | |
| 861 VA_FIXEDARG VA_CLOSE VA_START | |
| 862 #endif /* IN_GCC */ | |
| 863 | |
|
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864 /* Front ends should never have to include middle-end headers. Enforce |
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865 this by poisoning the header double-include protection defines. */ |
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866 #ifdef IN_GCC_FRONTEND |
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867 #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H |
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868 #endif |
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869 |
| 0 | 870 /* Note: not all uses of the `index' token (e.g. variable names and |
| 871 structure members) have been eliminated. */ | |
| 872 #undef bcopy | |
| 873 #undef bzero | |
| 874 #undef bcmp | |
| 875 #undef rindex | |
| 876 #pragma GCC poison bcopy bzero bcmp rindex | |
| 877 | |
| 878 #endif /* GCC >= 3.0 */ | |
| 879 | |
| 880 /* This macro allows casting away const-ness to pass -Wcast-qual | |
| 881 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should | |
| 882 only be used in certain specific cases. One valid case is where | |
| 883 the C standard definitions or prototypes force you to. E.g. if you | |
| 884 need to free a const object, or if you pass a const string to | |
| 885 execv, et al. Another valid use would be in an allocation function | |
| 886 that creates const objects that need to be initialized. In some | |
| 887 cases we have non-const functions that return the argument | |
| 888 (e.g. next_nonnote_insn). Rather than create const shadow | |
| 889 functions, we can cast away const-ness in calling these interfaces | |
| 890 if we're careful to verify that the called function does indeed not | |
| 891 modify its argument and the return value is only used in a const | |
| 892 context. (This can be somewhat dangerous as these assumptions can | |
| 893 change after the fact). Beyond these uses, most other cases of | |
| 894 using this macro should be viewed with extreme caution. */ | |
| 895 | |
|
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896 #ifdef __cplusplus |
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897 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X)) |
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898 #else |
| 0 | 899 #if defined(__GNUC__) && GCC_VERSION > 4000 |
| 900 /* GCC 4.0.x has a bug where it may ICE on this expression, | |
| 901 so does GCC 3.4.x (PR17436). */ | |
| 902 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq) | |
|
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903 #elif defined(__GNUC__) |
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904 static inline char * |
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905 helper_const_non_const_cast (const char *p) |
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906 { |
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907 union { |
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908 const char *const_c; |
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909 char *c; |
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910 } val; |
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911 val.const_c = p; |
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912 return val.c; |
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913 } |
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914 |
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915 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \ |
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916 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X))) |
| 0 | 917 #else |
| 918 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X)) | |
| 919 #endif | |
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920 #endif |
| 0 | 921 #define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X)) |
| 922 #define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X)) | |
| 923 #define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X)) | |
| 924 #define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X)) | |
| 925 #define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X)) | |
| 926 | |
| 927 /* Activate certain diagnostics as warnings (not errors via the | |
| 928 -Werror flag). */ | |
| 929 #if GCC_VERSION >= 4003 | |
| 930 /* If asserts are disabled, activate -Wuninitialized as a warning (not | |
| 931 an error/-Werror). */ | |
| 932 #ifndef ENABLE_ASSERT_CHECKING | |
| 933 #pragma GCC diagnostic warning "-Wuninitialized" | |
| 934 #endif | |
| 935 #endif | |
| 936 | |
| 937 #ifdef ENABLE_VALGRIND_CHECKING | |
| 938 # ifdef HAVE_VALGRIND_MEMCHECK_H | |
| 939 # include <valgrind/memcheck.h> | |
| 940 # elif defined HAVE_MEMCHECK_H | |
| 941 # include <memcheck.h> | |
| 942 # else | |
| 943 # include <valgrind.h> | |
| 944 # endif | |
| 945 /* Compatibility macros to let valgrind 3.1 work. */ | |
| 946 # ifndef VALGRIND_MAKE_MEM_NOACCESS | |
| 947 # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS | |
| 948 # endif | |
| 949 # ifndef VALGRIND_MAKE_MEM_DEFINED | |
| 950 # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE | |
| 951 # endif | |
| 952 # ifndef VALGRIND_MAKE_MEM_UNDEFINED | |
| 953 # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE | |
| 954 # endif | |
| 955 #else | |
| 956 /* Avoid #ifdef:s when we can help it. */ | |
| 957 #define VALGRIND_DISCARD(x) | |
| 958 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z) | |
| 959 #define VALGRIND_FREELIKE_BLOCK(x,y) | |
| 960 #endif | |
| 961 | |
|
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962 /* In LTO -fwhole-program build we still want to keep the debug functions available |
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963 for debugger. Mark them as used to prevent removal. */ |
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964 #if (GCC_VERSION > 4000) |
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965 #define DEBUG_FUNCTION __attribute__ ((__used__)) |
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966 #define DEBUG_VARIABLE __attribute__ ((__used__)) |
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967 #else |
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968 #define DEBUG_FUNCTION |
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969 #define DEBUG_VARIABLE |
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970 #endif |
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971 |
| 0 | 972 #endif /* ! GCC_SYSTEM_H */ |