1 /* Get common system includes and various definitions and declarations based 2 on autoconf macros. 3 Copyright (C) 1998-2024 Free Software Foundation, Inc. 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 GCC_SYSTEM_H 23 #define GCC_SYSTEM_H 24 25 /* Define this so that inttypes.h defines the PRI?64 macros even 26 when compiling with a C++ compiler. Define it here so in the 27 event inttypes.h gets pulled in by another header it is already 28 defined. */ 29 #define __STDC_FORMAT_MACROS 30 31 /* We must include stdarg.h before stdio.h. */ 32 #include <stdarg.h> 33 34 #ifndef va_copy 35 # ifdef __va_copy 36 # define va_copy(d,s) __va_copy (d, s) 37 # else 38 # define va_copy(d,s) ((d) = (s)) 39 # endif 40 #endif 41 42 #ifdef HAVE_STDDEF_H 43 # include <stddef.h> 44 #endif 45 46 #ifndef GENERATOR_FILE 47 #ifdef __cplusplus 48 # include <cstdio> 49 #endif 50 #endif 51 52 #include <stdio.h> 53 54 /* Define a generic NULL if one hasn't already been defined. */ 55 #ifndef NULL 56 #define NULL 0 57 #endif 58 59 /* Use the unlocked open routines from libiberty. */ 60 61 /* Some of these are #define on some systems, e.g. on AIX to redirect 62 the names to 64bit capable functions for LARGE_FILES support. These 63 redefs are pointless here so we can override them. */ 64 65 #undef fopen 66 #undef freopen 67 68 #define fopen(PATH, MODE) fopen_unlocked (PATH, MODE) 69 #define fdopen(FILDES, MODE) fdopen_unlocked (FILDES, MODE) 70 #define freopen(PATH, MODE, STREAM) freopen_unlocked (PATH, MODE, STREAM) 71 72 /* The compiler is not a multi-threaded application and therefore we 73 do not have to use the locking functions. In fact, using the locking 74 functions can cause the compiler to be significantly slower under 75 I/O bound conditions (such as -g -O0 on very large source files). 76 77 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio 78 code is multi-thread safe by default. If it is set to 0, then do 79 not worry about using the _unlocked functions. 80 81 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are 82 extensions and need to be prototyped by hand (since we do not 83 define _GNU_SOURCE). */ 84 85 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED 86 87 # ifdef HAVE_PUTC_UNLOCKED 88 # undef putc 89 # define putc(C, Stream) putc_unlocked (C, Stream) 90 # endif 91 # ifdef HAVE_PUTCHAR_UNLOCKED 92 # undef putchar 93 # define putchar(C) putchar_unlocked (C) 94 # endif 95 # ifdef HAVE_GETC_UNLOCKED 96 # undef getc 97 # define getc(Stream) getc_unlocked (Stream) 98 # endif 99 # ifdef HAVE_GETCHAR_UNLOCKED 100 # undef getchar 101 # define getchar() getchar_unlocked () 102 # endif 103 # ifdef HAVE_FPUTC_UNLOCKED 104 # undef fputc 105 # define fputc(C, Stream) fputc_unlocked (C, Stream) 106 # endif 107 108 #ifdef __cplusplus 109 extern "C" { 110 #endif 111 112 # ifdef HAVE_CLEARERR_UNLOCKED 113 # undef clearerr 114 # define clearerr(Stream) clearerr_unlocked (Stream) 115 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED 116 extern void clearerr_unlocked (FILE *); 117 # endif 118 # endif 119 # ifdef HAVE_FEOF_UNLOCKED 120 # undef feof 121 # define feof(Stream) feof_unlocked (Stream) 122 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED 123 extern int feof_unlocked (FILE *); 124 # endif 125 # endif 126 # ifdef HAVE_FILENO_UNLOCKED 127 # undef fileno 128 # define fileno(Stream) fileno_unlocked (Stream) 129 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED 130 extern int fileno_unlocked (FILE *); 131 # endif 132 # endif 133 # ifdef HAVE_FFLUSH_UNLOCKED 134 # undef fflush 135 # define fflush(Stream) fflush_unlocked (Stream) 136 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED 137 extern int fflush_unlocked (FILE *); 138 # endif 139 # endif 140 # ifdef HAVE_FGETC_UNLOCKED 141 # undef fgetc 142 # define fgetc(Stream) fgetc_unlocked (Stream) 143 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED 144 extern int fgetc_unlocked (FILE *); 145 # endif 146 # endif 147 # ifdef HAVE_FGETS_UNLOCKED 148 # undef fgets 149 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream) 150 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED 151 extern char *fgets_unlocked (char *, int, FILE *); 152 # endif 153 # endif 154 # ifdef HAVE_FPUTS_UNLOCKED 155 # undef fputs 156 # define fputs(String, Stream) fputs_unlocked (String, Stream) 157 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED 158 extern int fputs_unlocked (const char *, FILE *); 159 # endif 160 # endif 161 # ifdef HAVE_FERROR_UNLOCKED 162 # undef ferror 163 # define ferror(Stream) ferror_unlocked (Stream) 164 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED 165 extern int ferror_unlocked (FILE *); 166 # endif 167 # endif 168 # ifdef HAVE_FREAD_UNLOCKED 169 # undef fread 170 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream) 171 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED 172 extern size_t fread_unlocked (void *, size_t, size_t, FILE *); 173 # endif 174 # endif 175 # ifdef HAVE_FWRITE_UNLOCKED 176 # undef fwrite 177 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) 178 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED 179 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *); 180 # endif 181 # endif 182 # ifdef HAVE_FPRINTF_UNLOCKED 183 # undef fprintf 184 /* We can't use a function-like macro here because we don't know if 185 we have varargs macros. */ 186 # define fprintf fprintf_unlocked 187 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED 188 extern int fprintf_unlocked (FILE *, const char *, ...); 189 # endif 190 # endif 191 192 #ifdef __cplusplus 193 } 194 #endif 195 196 #endif 197 198 /* ??? Glibc's fwrite/fread_unlocked macros cause 199 "warning: signed and unsigned type in conditional expression". */ 200 #undef fread_unlocked 201 #undef fwrite_unlocked 202 203 /* Include C++ standard headers before "safe-ctype.h" to avoid GCC 204 poisoning the ctype macros through safe-ctype.h */ 205 206 #ifdef __cplusplus 207 #if defined (INCLUDE_ALGORITHM) || !defined (HAVE_SWAP_IN_UTILITY) 208 # include <algorithm> 209 #endif 210 #ifdef INCLUDE_LIST 211 # include <list> 212 #endif 213 #ifdef INCLUDE_MAP 214 # include <map> 215 #endif 216 #ifdef INCLUDE_SET 217 # include <set> 218 #endif 219 #ifdef INCLUDE_STRING 220 # include <string> 221 #endif 222 #ifdef INCLUDE_VECTOR 223 # include <vector> 224 #endif 225 #ifdef INCLUDE_ARRAY 226 # include <array> 227 #endif 228 #ifdef INCLUDE_FUNCTIONAL 229 # include <functional> 230 #endif 231 # include <cstring> 232 # include <initializer_list> 233 # include <new> 234 # include <utility> 235 # include <type_traits> 236 #endif 237 238 /* There are an extraordinary number of issues with <ctype.h>. 239 The last straw is that it varies with the locale. Use libiberty's 240 replacement instead. */ 241 #include "safe-ctype.h" 242 243 #include <sys/types.h> 244 245 #include <errno.h> 246 247 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO 248 extern int errno; 249 #endif 250 251 /* Some of glibc's string inlines cause warnings. Plus we'd rather 252 rely on (and therefore test) GCC's string builtins. */ 253 #define __NO_STRING_INLINES 254 255 #ifdef STRING_WITH_STRINGS 256 # include <string.h> 257 # include <strings.h> 258 #else 259 # ifdef HAVE_STRING_H 260 # include <string.h> 261 # else 262 # ifdef HAVE_STRINGS_H 263 # include <strings.h> 264 # endif 265 # endif 266 #endif 267 268 #ifdef HAVE_STDLIB_H 269 # include <stdlib.h> 270 #endif 271 272 /* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so 273 that it is processed before we poison "malloc"; otherwise, if a source 274 file uses a standard library header that includes <cstdlib>, we will get 275 an error about 'using std::malloc'. */ 276 #ifdef __cplusplus 277 #include <cstdlib> 278 #endif 279 280 /* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */ 281 #undef vec_free 282 283 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and 284 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively, 285 or 0 and 1 if those macros are not defined. */ 286 #ifndef SUCCESS_EXIT_CODE 287 # ifdef EXIT_SUCCESS 288 # define SUCCESS_EXIT_CODE EXIT_SUCCESS 289 # else 290 # define SUCCESS_EXIT_CODE 0 291 # endif 292 #endif 293 294 #ifndef FATAL_EXIT_CODE 295 # ifdef EXIT_FAILURE 296 # define FATAL_EXIT_CODE EXIT_FAILURE 297 # else 298 # define FATAL_EXIT_CODE 1 299 # endif 300 #endif 301 302 #define ICE_EXIT_CODE 4 303 304 #ifdef HAVE_UNISTD_H 305 # include <unistd.h> 306 #endif 307 308 #ifdef HAVE_SYS_PARAM_H 309 # include <sys/param.h> 310 /* We use these identifiers later and they appear in some vendor param.h's. */ 311 # undef PREFETCH 312 # undef m_slot 313 #endif 314 315 #if HAVE_LIMITS_H 316 # include <limits.h> 317 #endif 318 319 /* A macro to determine whether a VALUE lies inclusively within a 320 certain range without evaluating the VALUE more than once. This 321 macro won't warn if the VALUE is unsigned and the LOWER bound is 322 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER 323 bound *is* evaluated twice, and LOWER must not be greater than 324 UPPER. However the bounds themselves can be either positive or 325 negative. */ 326 #define IN_RANGE(VALUE, LOWER, UPPER) \ 327 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \ 328 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER)) 329 330 /* Infrastructure for defining missing _MAX and _MIN macros. Note that 331 macros defined with these cannot be used in #if. */ 332 333 /* The extra casts work around common compiler bugs. */ 334 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) 335 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0. 336 It is necessary at least when t == time_t. */ 337 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ 338 ? (t) 1 << (sizeof (t) * CHAR_BIT - 1) : (t) 0)) 339 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) 340 341 /* Use that infrastructure to provide a few constants. */ 342 #ifndef UCHAR_MAX 343 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) 344 #endif 345 346 #ifdef TIME_WITH_SYS_TIME 347 # include <sys/time.h> 348 # include <time.h> 349 #else 350 # if HAVE_SYS_TIME_H 351 # include <sys/time.h> 352 # else 353 # ifdef HAVE_TIME_H 354 # include <time.h> 355 # endif 356 # endif 357 #endif 358 359 #ifdef HAVE_FCNTL_H 360 # include <fcntl.h> 361 #else 362 # ifdef HAVE_SYS_FILE_H 363 # include <sys/file.h> 364 # endif 365 #endif 366 367 #ifdef HAVE_SYS_LOCKING_H 368 # include <sys/locking.h> 369 #endif 370 371 #ifndef SEEK_SET 372 # define SEEK_SET 0 373 # define SEEK_CUR 1 374 # define SEEK_END 2 375 #endif 376 #ifndef F_OK 377 # define F_OK 0 378 # define X_OK 1 379 # define W_OK 2 380 # define R_OK 4 381 #endif 382 #ifndef O_RDONLY 383 # define O_RDONLY 0 384 #endif 385 #ifndef O_WRONLY 386 # define O_WRONLY 1 387 #endif 388 #ifndef O_BINARY 389 # define O_BINARY 0 390 #endif 391 392 /* Some systems define these in, e.g., param.h. We undefine these names 393 here to avoid the warnings. We prefer to use our definitions since we 394 know they are correct. */ 395 396 #undef MIN 397 #undef MAX 398 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) 399 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) 400 401 /* Returns the least number N such that N * Y >= X. */ 402 #define CEIL(x,y) (((x) + (y) - 1) / (y)) 403 404 /* This macro rounds x up to the y boundary. */ 405 #define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1)) 406 407 /* This macro rounds x down to the y boundary. */ 408 #define ROUND_DOWN(x,y) ((x) & ~((y) - 1)) 409 410 #ifdef HAVE_SYS_WAIT_H 411 #include <sys/wait.h> 412 #endif 413 414 #ifndef WIFSIGNALED 415 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) 416 #endif 417 #ifndef WTERMSIG 418 #define WTERMSIG(S) ((S) & 0x7f) 419 #endif 420 #ifndef WIFEXITED 421 #define WIFEXITED(S) (((S) & 0xff) == 0) 422 #endif 423 #ifndef WEXITSTATUS 424 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) 425 #endif 426 #ifndef WSTOPSIG 427 #define WSTOPSIG WEXITSTATUS 428 #endif 429 #ifndef WCOREDUMP 430 #define WCOREDUMP(S) ((S) & WCOREFLG) 431 #endif 432 #ifndef WCOREFLG 433 #define WCOREFLG 0200 434 #endif 435 436 #include <signal.h> 437 #if !defined (SIGCHLD) && defined (SIGCLD) 438 # define SIGCHLD SIGCLD 439 #endif 440 441 #ifdef HAVE_SYS_MMAN_H 442 # include <sys/mman.h> 443 #endif 444 445 #ifndef MAP_FAILED 446 # define MAP_FAILED ((void *)-1) 447 #endif 448 449 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON) 450 # define MAP_ANONYMOUS MAP_ANON 451 #endif 452 453 #ifdef HAVE_SYS_RESOURCE_H 454 # include <sys/resource.h> 455 #endif 456 457 #ifdef HAVE_SYS_TIMES_H 458 # include <sys/times.h> 459 #endif 460 461 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they 462 are defined to 0 then we must provide the relevant declaration 463 here. These checks will be in the undefined state while configure 464 is running so be careful to test "defined (HAVE_DECL_*)". */ 465 466 #ifdef __cplusplus 467 extern "C" { 468 #endif 469 470 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF 471 extern double atof (const char *); 472 #endif 473 474 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL 475 extern long atol (const char *); 476 #endif 477 478 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE 479 extern void free (void *); 480 #endif 481 482 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD 483 extern char *getcwd (char *, size_t); 484 #endif 485 486 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV 487 extern char *getenv (const char *); 488 #endif 489 490 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT 491 extern int getopt (int, char * const *, const char *); 492 #endif 493 494 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE 495 extern int getpagesize (void); 496 #endif 497 498 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD 499 extern char *getwd (char *); 500 #endif 501 502 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK 503 extern void *sbrk (int); 504 #endif 505 506 #if defined (HAVE_DECL_SETENV) && !HAVE_DECL_SETENV 507 int setenv(const char *, const char *, int); 508 #endif 509 510 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR 511 extern char *strstr (const char *, const char *); 512 #endif 513 514 #if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY 515 extern char *stpcpy (char *, const char *); 516 #endif 517 518 #if defined (HAVE_DECL_UNSETENV) && !HAVE_DECL_UNSETENV 519 int unsetenv(const char *); 520 #endif 521 522 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC 523 extern void *malloc (size_t); 524 #endif 525 526 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC 527 extern void *calloc (size_t, size_t); 528 #endif 529 530 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC 531 extern void *realloc (void *, size_t); 532 #endif 533 534 #ifdef __cplusplus 535 } 536 #endif 537 538 #ifdef HAVE_STDINT_H 539 #include <stdint.h> 540 #endif 541 542 #ifdef HAVE_INTTYPES_H 543 #include <inttypes.h> 544 #endif 545 546 #ifndef SIZE_MAX 547 # define SIZE_MAX INTTYPE_MAXIMUM (size_t) 548 #endif 549 550 #ifdef __cplusplus 551 extern "C" { 552 #endif 553 554 /* If the system doesn't provide strsignal, we get it defined in 555 libiberty but no declaration is supplied. */ 556 #if !defined (HAVE_STRSIGNAL) \ 557 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL) 558 # ifndef strsignal 559 extern const char *strsignal (int); 560 # endif 561 #endif 562 563 #ifdef HAVE_GETRLIMIT 564 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT 565 # ifndef getrlimit 566 struct rlimit; 567 extern int getrlimit (int, struct rlimit *); 568 # endif 569 # endif 570 #endif 571 572 #ifdef HAVE_SETRLIMIT 573 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT 574 # ifndef setrlimit 575 struct rlimit; 576 extern int setrlimit (int, const struct rlimit *); 577 # endif 578 # endif 579 #endif 580 581 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT 582 extern void abort (void); 583 #endif 584 585 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF 586 extern int snprintf (char *, size_t, const char *, ...); 587 #endif 588 589 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF 590 extern int vsnprintf (char *, size_t, const char *, va_list); 591 #endif 592 593 #ifdef __cplusplus 594 } 595 #endif 596 597 /* 1 if we have C99 designated initializers. */ 598 #if !defined(HAVE_DESIGNATED_INITIALIZERS) 599 #ifdef __cplusplus 600 #define HAVE_DESIGNATED_INITIALIZERS 0 601 #else 602 #define HAVE_DESIGNATED_INITIALIZERS \ 603 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) 604 #endif 605 #endif 606 607 #if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS) 608 #ifdef __cplusplus 609 #define HAVE_DESIGNATED_UNION_INITIALIZERS (GCC_VERSION >= 4007) 610 #else 611 #define HAVE_DESIGNATED_UNION_INITIALIZERS \ 612 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) 613 #endif 614 #endif 615 616 #if HAVE_SYS_STAT_H 617 # include <sys/stat.h> 618 #endif 619 620 /* Test if something is a normal file. */ 621 #ifndef S_ISREG 622 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) 623 #endif 624 625 /* Test if something is a directory. */ 626 #ifndef S_ISDIR 627 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) 628 #endif 629 630 /* Test if something is a character special file. */ 631 #ifndef S_ISCHR 632 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) 633 #endif 634 635 /* Test if something is a block special file. */ 636 #ifndef S_ISBLK 637 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) 638 #endif 639 640 /* Test if something is a socket. */ 641 #ifndef S_ISSOCK 642 # ifdef S_IFSOCK 643 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) 644 # else 645 # define S_ISSOCK(m) 0 646 # endif 647 #endif 648 649 /* Test if something is a FIFO. */ 650 #ifndef S_ISFIFO 651 # ifdef S_IFIFO 652 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) 653 # else 654 # define S_ISFIFO(m) 0 655 # endif 656 #endif 657 658 /* Define well known filenos if the system does not define them. */ 659 #ifndef STDIN_FILENO 660 # define STDIN_FILENO 0 661 #endif 662 #ifndef STDOUT_FILENO 663 # define STDOUT_FILENO 1 664 #endif 665 #ifndef STDERR_FILENO 666 # define STDERR_FILENO 2 667 #endif 668 669 /* Some systems have mkdir that takes a single argument. */ 670 #ifdef MKDIR_TAKES_ONE_ARG 671 # define mkdir(a,b) mkdir (a) 672 #endif 673 674 #ifndef HAVE_KILL 675 # define kill(p,s) raise (s) 676 #endif 677 678 /* Provide a way to print an address via printf. */ 679 #ifndef HOST_PTR_PRINTF 680 #define HOST_PTR_PRINTF "%p" 681 #endif /* ! HOST_PTR_PRINTF */ 682 683 /* By default, colon separates directories in a path. */ 684 #ifndef PATH_SEPARATOR 685 #define PATH_SEPARATOR ':' 686 #endif 687 688 /* Filename handling macros. */ 689 #include "filenames.h" 690 691 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ 692 #ifndef DIR_SEPARATOR 693 # define DIR_SEPARATOR '/' 694 # ifdef HAVE_DOS_BASED_FILE_SYSTEM 695 # define DIR_SEPARATOR_2 '\\' 696 # endif 697 #endif 698 699 #if defined (INCLUDE_DLFCN_H) && defined (HAVE_DLFCN_H) 700 /* If plugin support is enabled, we could use libdl. */ 701 #include <dlfcn.h> 702 #endif 703 704 /* Do not introduce a gmp.h dependency on the build system. */ 705 #ifndef GENERATOR_FILE 706 #include <gmp.h> 707 708 class auto_mpz 709 { 710 public: 711 auto_mpz () { mpz_init (m_mpz); } 712 ~auto_mpz () { mpz_clear (m_mpz); } 713 714 operator mpz_t& () { return m_mpz; } 715 mpz_ptr operator-> () { return m_mpz; } 716 717 auto_mpz (const auto_mpz &) = delete; 718 auto_mpz &operator= (const auto_mpz &) = delete; 719 720 #if GCC_VERSION < 4008 || GCC_VERSION >= 5000 721 /* GCC 4.8 and 4.9 don't support this, only fixed in PR62101 for 5.0. */ 722 friend void mpz_clear (auto_mpz&) = delete; 723 friend void mpz_init (auto_mpz&) = delete; 724 #endif 725 726 private: 727 mpz_t m_mpz; 728 }; 729 #endif 730 731 /* Get libiberty declarations. */ 732 #include "libiberty.h" 733 734 #undef FFS /* Some systems predefine this symbol; don't let it interfere. */ 735 #undef FLOAT /* Likewise. */ 736 #undef ABS /* Likewise. */ 737 #undef PC /* Likewise. */ 738 739 /* Provide a default for the HOST_BIT_BUCKET. 740 This suffices for POSIX-like hosts. */ 741 742 #ifndef HOST_BIT_BUCKET 743 #define HOST_BIT_BUCKET "/dev/null" 744 #endif 745 746 #ifndef offsetof 747 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) 748 #endif 749 750 /* Various error reporting routines want to use __FUNCTION__. */ 751 #if (GCC_VERSION < 2007) 752 #ifndef __FUNCTION__ 753 #define __FUNCTION__ "?" 754 #endif /* ! __FUNCTION__ */ 755 #endif 756 757 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that 758 the most likely value of A is B. This feature was added at some point 759 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ 760 #if (GCC_VERSION < 3000) 761 #define __builtin_expect(a, b) (a) 762 #endif 763 764 #define LIKELY(x) (__builtin_expect ((x), 1)) 765 #define UNLIKELY(x) (__builtin_expect ((x), 0)) 766 767 /* Some of the headers included by <memory> can use "abort" within a 768 namespace, e.g. "_VSTD::abort();", which fails after we use the 769 preprocessor to redefine "abort" as "fancy_abort" below. */ 770 771 #ifdef INCLUDE_MEMORY 772 # include <memory> 773 #endif 774 775 #ifdef INCLUDE_MUTEX 776 # include <mutex> 777 #endif 778 779 #ifdef INCLUDE_SSTREAM 780 # include <sstream> 781 #endif 782 783 #ifdef INCLUDE_MALLOC_H 784 #if defined(HAVE_MALLINFO) || defined(HAVE_MALLINFO2) 785 #include <malloc.h> 786 #endif 787 #endif 788 789 #ifdef INCLUDE_ISL 790 #ifdef HAVE_isl 791 #include <isl/options.h> 792 #include <isl/ctx.h> 793 #include <isl/val.h> 794 #include <isl/set.h> 795 #include <isl/union_set.h> 796 #include <isl/map.h> 797 #include <isl/union_map.h> 798 #include <isl/aff.h> 799 #include <isl/constraint.h> 800 #include <isl/flow.h> 801 #include <isl/ilp.h> 802 #include <isl/schedule.h> 803 #include <isl/ast_build.h> 804 #include <isl/schedule_node.h> 805 #include <isl/id.h> 806 #include <isl/space.h> 807 #endif 808 #endif 809 810 /* Redefine 'abort' to report an internal error w/o coredump, and 811 reporting the location of the error in the source file. 812 Instead of directly calling 'abort' or 'fancy_abort', GCC code 813 should normally call 'internal_error' with a specific message. */ 814 extern void fancy_abort (const char *, int, const char *) 815 ATTRIBUTE_NORETURN ATTRIBUTE_COLD; 816 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) 817 818 /* Use gcc_assert(EXPR) to test invariants. */ 819 #if ENABLE_ASSERT_CHECKING 820 #define gcc_assert(EXPR) \ 821 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) 822 #elif (GCC_VERSION >= 4005) 823 #define gcc_assert(EXPR) \ 824 ((void)(UNLIKELY (!(EXPR)) ? __builtin_unreachable (), 0 : 0)) 825 #else 826 /* Include EXPR, so that unused variable warnings do not occur. */ 827 #define gcc_assert(EXPR) ((void)(0 && (EXPR))) 828 #endif 829 830 #if CHECKING_P 831 #define gcc_checking_assert(EXPR) gcc_assert (EXPR) 832 #else 833 /* N.B.: in release build EXPR is not evaluated. */ 834 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR))) 835 #endif 836 837 #if GCC_VERSION >= 4000 838 #define ALWAYS_INLINE inline __attribute__ ((always_inline)) 839 #else 840 #define ALWAYS_INLINE inline 841 #endif 842 843 #if GCC_VERSION >= 3004 844 #define WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__)) 845 #else 846 #define WARN_UNUSED_RESULT 847 #endif 848 849 /* Use gcc_unreachable() to mark unreachable locations (like an 850 unreachable default case of a switch. Do not use gcc_assert(0). */ 851 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING 852 #define gcc_unreachable() __builtin_unreachable () 853 #else 854 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) 855 #endif 856 857 #if GCC_VERSION >= 7000 && defined(__has_attribute) 858 # if __has_attribute(fallthrough) 859 # define gcc_fallthrough() __attribute__((fallthrough)) 860 # else 861 # define gcc_fallthrough() 862 # endif 863 #else 864 # define gcc_fallthrough() 865 #endif 866 867 #if GCC_VERSION >= 3001 868 #define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X)) 869 #else 870 #define STATIC_CONSTANT_P(X) (false && (X)) 871 #endif 872 873 #ifdef __cplusplus 874 #define STATIC_ASSERT(X) \ 875 static_assert ((X), #X) 876 #else 877 #define STATIC_ASSERT(X) \ 878 typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED 879 #endif 880 881 /* Provide a fake boolean type. We make no attempt to use the 882 C99 _Bool, as it may not be available in the bootstrap compiler, 883 and even if it is, it is liable to be buggy. 884 This must be after all inclusion of system headers, as some of 885 them will mess us up. */ 886 887 #undef TRUE 888 #undef FALSE 889 890 #ifdef __cplusplus 891 /* Obsolete. */ 892 # define TRUE true 893 # define FALSE false 894 #else /* !__cplusplus */ 895 # undef bool 896 # undef true 897 # undef false 898 899 # define bool unsigned char 900 # define true 1 901 # define false 0 902 903 /* Obsolete. */ 904 # define TRUE true 905 # define FALSE false 906 #endif /* !__cplusplus */ 907 908 /* Some compilers do not allow the use of unsigned char in bitfields. */ 909 #define BOOL_BITFIELD unsigned int 910 911 /* As the last action in this file, we poison the identifiers that 912 shouldn't be used. Note, luckily gcc-3.0's token-based integrated 913 preprocessor won't trip on poisoned identifiers that arrive from 914 the expansion of macros. E.g. #define strrchr rindex, won't error 915 if rindex is poisoned after this directive is issued and later on 916 strrchr is called. 917 918 Note: We define bypass macros for the few cases where we really 919 want to use the libc memory allocation routines. Otherwise we 920 insist you use the "x" versions from libiberty. */ 921 922 #define really_call_malloc malloc 923 #define really_call_calloc calloc 924 #define really_call_realloc realloc 925 926 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC) 927 /* Flex and bison use malloc and realloc. Yuk. Note that this means 928 really_call_* cannot be used in a .l or .y file. */ 929 #define malloc xmalloc 930 #define realloc xrealloc 931 #endif 932 933 #if (GCC_VERSION >= 3000) 934 935 /* Note autoconf checks for prototype declarations and includes 936 system.h while doing so. Only poison these tokens if actually 937 compiling gcc, so that the autoconf declaration tests for malloc 938 etc don't spuriously fail. */ 939 #ifdef IN_GCC 940 941 #undef calloc 942 #undef strdup 943 #undef strndup 944 #pragma GCC poison calloc strdup strndup 945 946 #if !defined(FLEX_SCANNER) && !defined(YYBISON) 947 #undef malloc 948 #undef realloc 949 #pragma GCC poison malloc realloc 950 #endif 951 952 /* The %m format should be used when GCC's main diagnostic functions 953 supporting %m are available, and xstrerror from libiberty 954 otherwise. */ 955 #undef strerror 956 #pragma GCC poison strerror 957 958 /* loc_t is defined on some systems and too inviting for some 959 programmers to avoid. */ 960 #undef loc_t 961 #pragma GCC poison loc_t 962 963 /* Old target macros that have moved to the target hooks structure. */ 964 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ 965 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ 966 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \ 967 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \ 968 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \ 969 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \ 970 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \ 971 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \ 972 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \ 973 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \ 974 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \ 975 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \ 976 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \ 977 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \ 978 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \ 979 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \ 980 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \ 981 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \ 982 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \ 983 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ 984 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ 985 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ 986 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \ 987 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \ 988 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \ 989 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \ 990 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \ 991 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \ 992 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \ 993 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \ 994 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \ 995 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \ 996 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \ 997 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \ 998 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \ 999 OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \ 1000 ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \ 1001 LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE \ 1002 CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P \ 1003 STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD \ 1004 HARD_REGNO_CALL_PART_CLOBBERED HARD_REGNO_MODE_OK \ 1005 MODES_TIEABLE_P FUNCTION_ARG_PADDING SLOW_UNALIGNED_ACCESS \ 1006 HARD_REGNO_NREGS SECONDARY_MEMORY_NEEDED_MODE \ 1007 SECONDARY_MEMORY_NEEDED CANNOT_CHANGE_MODE_CLASS \ 1008 TRULY_NOOP_TRUNCATION FUNCTION_ARG_OFFSET CONSTANT_ALIGNMENT \ 1009 STARTING_FRAME_OFFSET 1010 1011 /* Target macros only used for code built for the target, that have 1012 moved to libgcc-tm.h or have never been present elsewhere. */ 1013 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \ 1014 MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \ 1015 REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT 1016 1017 /* Other obsolete target macros, or macros that used to be in target 1018 headers and were not used, and may be obsolete or may never have 1019 been used. */ 1020 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \ 1021 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \ 1022 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ 1023 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ 1024 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ 1025 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ 1026 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \ 1027 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \ 1028 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \ 1029 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \ 1030 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \ 1031 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \ 1032 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \ 1033 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \ 1034 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \ 1035 INSN_CACHE_DEPTH INSN_CACHE_SIZE \ 1036 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \ 1037 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \ 1038 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \ 1039 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \ 1040 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \ 1041 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \ 1042 PROMOTED_MODE EXPAND_BUILTIN_VA_END \ 1043 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \ 1044 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \ 1045 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \ 1046 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \ 1047 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \ 1048 BUILTIN_SETJMP_FRAME_VALUE \ 1049 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \ 1050 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \ 1051 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \ 1052 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \ 1053 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \ 1054 GDB_INV_REF_REGPARM_STABS_LETTER \ 1055 PUT_SDB_SRC_FILE STABS_GCC_MARKER SDB_GENERATE_FAKE \ 1056 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \ 1057 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \ 1058 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \ 1059 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \ 1060 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \ 1061 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \ 1062 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \ 1063 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \ 1064 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \ 1065 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \ 1066 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \ 1067 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \ 1068 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \ 1069 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \ 1070 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \ 1071 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \ 1072 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \ 1073 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \ 1074 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \ 1075 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \ 1076 SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \ 1077 PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \ 1078 STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \ 1079 LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \ 1080 IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES \ 1081 RANGE_TEST_NON_SHORT_CIRCUIT \ 1082 REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \ 1083 TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \ 1084 IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \ 1085 UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \ 1086 USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \ 1087 CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \ 1088 GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \ 1089 ELIGIBLE_FOR_EPILOGUE_DELAY TARGET_C99_FUNCTIONS TARGET_HAS_SINCOS \ 1090 REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \ 1091 CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT \ 1092 REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT \ 1093 EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT \ 1094 EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \ 1095 CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL \ 1096 ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \ 1097 LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE \ 1098 EH_FRAME_IN_DATA_SECTION TARGET_FLT_EVAL_METHOD_NON_DEFAULT \ 1099 JCR_SECTION_NAME TARGET_USE_JCR_SECTION SDB_DEBUGGING_INFO \ 1100 SDB_DEBUG NO_IMPLICIT_EXTERN_C NOTICE_UPDATE_CC \ 1101 CC_STATUS_MDEP_INIT CC_STATUS_MDEP CC_STATUS SLOW_SHORT_ACCESS 1102 1103 /* Hooks that are no longer used. */ 1104 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ 1105 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \ 1106 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \ 1107 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \ 1108 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \ 1109 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \ 1110 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \ 1111 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \ 1112 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \ 1113 TARGET_IRA_COVER_CLASSES TARGET_HELP \ 1114 TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \ 1115 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \ 1116 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \ 1117 TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING \ 1118 EXTENDED_SDB_BASIC_TYPES TARGET_INVALID_PARAMETER_TYPE \ 1119 TARGET_INVALID_RETURN_TYPE 1120 1121 /* Arrays that were deleted in favor of a functional interface. */ 1122 #pragma GCC poison built_in_decls implicit_built_in_decls 1123 1124 /* Hooks into libgcc2. */ 1125 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \ 1126 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN 1127 1128 /* Miscellaneous macros that are no longer used. */ 1129 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT 1130 1131 /* Libiberty macros that are no longer used in GCC. */ 1132 #undef ANSI_PROTOTYPES 1133 #undef PTR_CONST 1134 #undef LONG_DOUBLE 1135 #undef VPARAMS 1136 #undef VA_OPEN 1137 #undef VA_FIXEDARG 1138 #undef VA_CLOSE 1139 #undef VA_START 1140 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ 1141 VA_FIXEDARG VA_CLOSE VA_START 1142 #endif /* IN_GCC */ 1143 1144 /* Front ends should never have to include middle-end headers. Enforce 1145 this by poisoning the header double-include protection defines. */ 1146 #ifdef IN_GCC_FRONTEND 1147 #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H 1148 #endif 1149 1150 /* Note: not all uses of the `index' token (e.g. variable names and 1151 structure members) have been eliminated. */ 1152 #undef bcopy 1153 #undef bzero 1154 #undef bcmp 1155 #undef rindex 1156 #pragma GCC poison bcopy bzero bcmp rindex 1157 1158 /* Poison ENABLE_CHECKING macro that should be replaced with 1159 'if (flag_checking)', or with CHECKING_P macro. */ 1160 #pragma GCC poison ENABLE_CHECKING 1161 1162 #endif /* GCC >= 3.0 */ 1163 1164 /* This macro allows casting away const-ness to pass -Wcast-qual 1165 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should 1166 only be used in certain specific cases. One valid case is where 1167 the C standard definitions or prototypes force you to. E.g. if you 1168 need to free a const object, or if you pass a const string to 1169 execv, et al. Another valid use would be in an allocation function 1170 that creates const objects that need to be initialized. In some 1171 cases we have non-const functions that return the argument 1172 (e.g. next_nonnote_insn). Rather than create const shadow 1173 functions, we can cast away const-ness in calling these interfaces 1174 if we're careful to verify that the called function does indeed not 1175 modify its argument and the return value is only used in a const 1176 context. (This can be somewhat dangerous as these assumptions can 1177 change after the fact). Beyond these uses, most other cases of 1178 using this macro should be viewed with extreme caution. */ 1179 1180 #ifdef __cplusplus 1181 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X)) 1182 #else 1183 #if defined(__GNUC__) && GCC_VERSION > 4000 1184 /* GCC 4.0.x has a bug where it may ICE on this expression, 1185 so does GCC 3.4.x (PR17436). */ 1186 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq) 1187 #elif defined(__GNUC__) 1188 inline char * 1189 helper_const_non_const_cast (const char *p) 1190 { 1191 union { 1192 const char *const_c; 1193 char *c; 1194 } val; 1195 val.const_c = p; 1196 return val.c; 1197 } 1198 1199 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \ 1200 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X))) 1201 #else 1202 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X)) 1203 #endif 1204 #endif 1205 #define CONST_CAST(TYPE,X) CONST_CAST2 (TYPE, const TYPE, (X)) 1206 #define CONST_CAST_TREE(X) CONST_CAST (union tree_node *, (X)) 1207 #define CONST_CAST_RTX(X) CONST_CAST (struct rtx_def *, (X)) 1208 #define CONST_CAST_RTX_INSN(X) CONST_CAST (struct rtx_insn *, (X)) 1209 #define CONST_CAST_BB(X) CONST_CAST (struct basic_block_def *, (X)) 1210 #define CONST_CAST_GIMPLE(X) CONST_CAST (gimple *, (X)) 1211 1212 /* Activate certain diagnostics as warnings (not errors via the 1213 -Werror flag). */ 1214 #if GCC_VERSION >= 4003 1215 /* If asserts are disabled, activate -Wuninitialized as a warning (not 1216 an error/-Werror). */ 1217 #ifndef ENABLE_ASSERT_CHECKING 1218 #pragma GCC diagnostic warning "-Wuninitialized" 1219 #endif 1220 #endif 1221 1222 #ifdef ENABLE_VALGRIND_ANNOTATIONS 1223 #include <valgrind/memcheck.h> 1224 #else 1225 /* VALGRIND_DISCARD unregisters the given block handle, 1226 but our code misuses it for discarding annotations. */ 1227 #define VALGRIND_DISCARD(x) 1228 #endif 1229 1230 /* Macros to temporarily ignore some warnings. */ 1231 #if GCC_VERSION >= 6000 1232 #define GCC_DIAGNOSTIC_STRINGIFY(x) #x 1233 #define GCC_DIAGNOSTIC_PUSH_IGNORED(x) \ 1234 _Pragma ("GCC diagnostic push") \ 1235 _Pragma (GCC_DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored #x)) 1236 #define GCC_DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop") 1237 #else 1238 #define GCC_DIAGNOSTIC_PUSH_IGNORED(x) 1239 #define GCC_DIAGNOSTIC_POP 1240 #endif 1241 1242 /* In LTO -fwhole-program build we still want to keep the debug functions available 1243 for debugger. Mark them as used to prevent removal. */ 1244 #if (GCC_VERSION > 4000) 1245 #define DEBUG_FUNCTION __attribute__ ((__used__)) 1246 #define DEBUG_VARIABLE __attribute__ ((__used__)) 1247 #else 1248 #define DEBUG_FUNCTION 1249 #define DEBUG_VARIABLE 1250 #endif 1251 1252 /* General macro to extract bit Y of X. */ 1253 #define TEST_BIT(X, Y) (((X) >> (Y)) & 1) 1254 1255 /* Get definitions of HOST_WIDE_INT. */ 1256 #include "hwint.h" 1257 1258 typedef int sort_r_cmp_fn (const void *, const void *, void *); 1259 void qsort_chk (void *, size_t, size_t, sort_r_cmp_fn *, void *); 1260 void gcc_sort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *); 1261 void gcc_qsort (void *, size_t, size_t, int (*)(const void *, const void *)); 1262 void gcc_stablesort (void *, size_t, size_t, 1263 int (*)(const void *, const void *)); 1264 void gcc_stablesort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *data); 1265 /* Redirect four-argument qsort calls to gcc_qsort; one-argument invocations 1266 correspond to vec::qsort, and use C qsort internally. */ 1267 #define PP_5th(a1, a2, a3, a4, a5, ...) a5 1268 #undef qsort 1269 #define qsort(...) PP_5th (__VA_ARGS__, gcc_qsort, 3, 2, qsort, 0) (__VA_ARGS__) 1270 1271 #define ONE_K 1024 1272 #define ONE_M (ONE_K * ONE_K) 1273 #define ONE_G (ONE_K * ONE_M) 1274 1275 /* Display a number as an integer multiple of either: 1276 - 1024, if said integer is >= to 10 K (in base 2) 1277 - 1024 * 1024, if said integer is >= 10 M in (base 2) 1278 */ 1279 #define SIZE_SCALE(x) (((x) < 10 * ONE_K \ 1280 ? (x) \ 1281 : ((x) < 10 * ONE_M \ 1282 ? (x) / ONE_K \ 1283 : (x) / ONE_M))) 1284 1285 /* For a given integer, display either: 1286 - the character 'k', if the number is higher than 10 K (in base 2) 1287 but strictly lower than 10 M (in base 2) 1288 - the character 'M' if the number is higher than 10 M (in base2) 1289 - the charcter ' ' if the number is strictly lower than 10 K */ 1290 #define SIZE_LABEL(x) ((x) < 10 * ONE_K ? ' ' : ((x) < 10 * ONE_M ? 'k' : 'M')) 1291 1292 /* Display an integer amount as multiple of 1K or 1M (in base 2). 1293 Display the correct unit (either k, M, or ' ') after the amount, as 1294 well. */ 1295 #define SIZE_AMOUNT(size) (uint64_t)SIZE_SCALE (size), SIZE_LABEL (size) 1296 1297 /* Format string particle for printing a SIZE_AMOUNT with N being the width 1298 of the number. */ 1299 #define PRsa(n) "%" #n PRIu64 "%c" 1300 1301 /* System headers may define NULL to be an integer (e.g. 0L), which cannot be 1302 used safely in certain contexts (e.g. as sentinels). Redefine NULL to 1303 nullptr in order to make it safer. Note that this might confuse system 1304 headers, however, by convention they must not be included after this point. 1305 */ 1306 #ifdef __cplusplus 1307 #undef NULL 1308 #define NULL nullptr 1309 #endif 1310 1311 /* Workaround clang on PowerPC which has vec_step as reserved keyword 1312 rather than function-like macro defined in <altivec.h>. See PR114369. */ 1313 #if defined(__clang__) && defined(__powerpc__) 1314 #define vec_step vec_step_ 1315 #endif 1316 1317 /* Return true if STR string starts with PREFIX. */ 1318 1319 inline bool 1320 startswith (const char *str, const char *prefix) 1321 { 1322 return strncmp (str, prefix, strlen (prefix)) == 0; 1323 } 1324 1325 /* Return true if STR string ends with SUFFIX. */ 1326 1327 inline bool 1328 endswith (const char *str, const char *suffix) 1329 { 1330 size_t str_len = strlen (str); 1331 size_t suffix_len = strlen (suffix); 1332 if (str_len < suffix_len) 1333 return false; 1334 1335 return memcmp (str + str_len - suffix_len, suffix, suffix_len) == 0; 1336 } 1337 1338 #endif /* ! GCC_SYSTEM_H */ 1339
Indexes created Sat Jul 18 00:24:37 UTC 2026