sdcc/support/cpp/gcc/system.h

   1 /* Get common system includes and various definitions and declarations based
   2    on autoconf macros.
   3    Copyright (C) 1998-2022 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 /* A little hack for sdcpp when compiling for Windows */
  26 #if defined(_WIN32) || defined(_WIN64)
  27 #define HOST_LACKS_INODE_NUMBERS 1
  28 #endif
  29
  30
  31 /* Define this so that inttypes.h defines the PRI?64 macros even
  32    when compiling with a C++ compiler.  Define it here so in the
  33    event inttypes.h gets pulled in by another header it is already
  34    defined.  */
  35 #define __STDC_FORMAT_MACROS
  36
  37 /* We must include stdarg.h before stdio.h.  */
  38 #include <stdarg.h>
  39
  40 #ifndef va_copy
  41 # ifdef __va_copy
  42 #   define va_copy(d,s)  __va_copy (d, s)
  43 # else
  44 #   define va_copy(d,s)  ((d) = (s))
  45 # endif
  46 #endif
  47
  48 #ifdef HAVE_STDDEF_H
  49 # include <stddef.h>
  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 <string> before "safe-ctype.h" to avoid GCC poisoning
 204    the ctype macros through safe-ctype.h */
 205
 206 #ifdef __cplusplus
 207 #ifdef INCLUDE_STRING
 208 # include <string>
 209 #endif
 210 #endif
 211
 212 /* There are an extraordinary number of issues with <ctype.h>.
 213    The last straw is that it varies with the locale.  Use libiberty's
 214    replacement instead.  */
 215 #include "safe-ctype.h"
 216
 217 #include <sys/types.h>
 218
 219 #include <errno.h>
 220
 221 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
 222 extern int errno;
 223 #endif
 224
 225 #ifdef __cplusplus
 226 #if defined (INCLUDE_ALGORITHM) || !defined (HAVE_SWAP_IN_UTILITY)
 227 # include <algorithm>
 228 #endif
 229 #ifdef INCLUDE_LIST
 230 # include <list>
 231 #endif
 232 #ifdef INCLUDE_MAP
 233 # include <map>
 234 #endif
 235 #ifdef INCLUDE_SET
 236 # include <set>
 237 #endif
 238 #ifdef INCLUDE_VECTOR
 239 # include <vector>
 240 #endif
 241 #ifdef INCLUDE_ARRAY
 242 # include <array>
 243 #endif
 244 #ifdef INCLUDE_FUNCTIONAL
 245 # include <functional>
 246 #endif
 247 # include <cstring>
 248 # include <initializer_list>
 249 # include <new>
 250 # include <utility>
 251 # include <type_traits>
 252 #endif
 253
 254 /* Some of glibc's string inlines cause warnings.  Plus we'd rather
 255    rely on (and therefore test) GCC's string builtins.  */
 256 #define __NO_STRING_INLINES
 257
 258 #ifdef STRING_WITH_STRINGS
 259 # include <string.h>
 260 # include <strings.h>
 261 #else
 262 # ifdef HAVE_STRING_H
 263 #  include <string.h>
 264 # else
 265 #  ifdef HAVE_STRINGS_H
 266 #   include <strings.h>
 267 #  endif
 268 # endif
 269 #endif
 270
 271 #ifdef HAVE_STDLIB_H
 272 # include <stdlib.h>
 273 #endif
 274
 275 /* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so
 276    that it is processed before we poison "malloc"; otherwise, if a source
 277    file uses a standard library header that includes <cstdlib>, we will get
 278    an error about 'using std::malloc'.  */
 279 #ifdef __cplusplus
 280 #include <cstdlib>
 281 #endif
 282
 283 /* Undef vec_free from AIX stdlib.h header which conflicts with vec.h.  */
 284 #undef vec_free
 285
 286 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
 287    FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
 288    or 0 and 1 if those macros are not defined.  */
 289 #ifndef SUCCESS_EXIT_CODE
 290 # ifdef EXIT_SUCCESS
 291 #  define SUCCESS_EXIT_CODE EXIT_SUCCESS
 292 # else
 293 #  define SUCCESS_EXIT_CODE 0
 294 # endif
 295 #endif
 296
 297 #ifndef FATAL_EXIT_CODE
 298 # ifdef EXIT_FAILURE
 299 #  define FATAL_EXIT_CODE EXIT_FAILURE
 300 # else
 301 #  define FATAL_EXIT_CODE 1
 302 # endif
 303 #endif
 304
 305 #define ICE_EXIT_CODE 4
 306
 307 #ifdef HAVE_UNISTD_H
 308 # include <unistd.h>
 309 #endif
 310
 311 #ifdef HAVE_SYS_PARAM_H
 312 # include <sys/param.h>
 313 /* We use these identifiers later and they appear in some vendor param.h's.  */
 314 # undef PREFETCH
 315 # undef m_slot
 316 #endif
 317
 318 #if HAVE_LIMITS_H
 319 # include <limits.h>
 320 #endif
 321
 322 /* A macro to determine whether a VALUE lies inclusively within a
 323    certain range without evaluating the VALUE more than once.  This
 324    macro won't warn if the VALUE is unsigned and the LOWER bound is
 325    zero, as it would e.g. with "VALUE >= 0 && ...".  Note the LOWER
 326    bound *is* evaluated twice, and LOWER must not be greater than
 327    UPPER.  However the bounds themselves can be either positive or
 328    negative.  */
 329 #define IN_RANGE(VALUE, LOWER, UPPER) \
 330   ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
 331    <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
 332
 333 /* Infrastructure for defining missing _MAX and _MIN macros.  Note that
 334    macros defined with these cannot be used in #if.  */
 335
 336 /* The extra casts work around common compiler bugs.  */
 337 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
 338 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
 339    It is necessary at least when t == time_t.  */
 340 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
 341                             ? (t) 1 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
 342 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
 343
 344 /* Use that infrastructure to provide a few constants.  */
 345 #ifndef UCHAR_MAX
 346 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
 347 #endif
 348
 349 #ifdef TIME_WITH_SYS_TIME
 350 # include <sys/time.h>
 351 # include <time.h>
 352 #else
 353 # if HAVE_SYS_TIME_H
 354 #  include <sys/time.h>
 355 # else
 356 #  ifdef HAVE_TIME_H
 357 #   include <time.h>
 358 #  endif
 359 # endif
 360 #endif
 361
 362 #ifdef HAVE_FCNTL_H
 363 # include <fcntl.h>
 364 #else
 365 # ifdef HAVE_SYS_FILE_H
 366 #  include <sys/file.h>
 367 # endif
 368 #endif
 369
 370 #ifdef HAVE_SYS_LOCKING_H
 371 # include <sys/locking.h>
 372 #endif
 373
 374 #ifndef SEEK_SET
 375 # define SEEK_SET 0
 376 # define SEEK_CUR 1
 377 # define SEEK_END 2
 378 #endif
 379 #ifndef F_OK
 380 # define F_OK 0
 381 # define X_OK 1
 382 # define W_OK 2
 383 # define R_OK 4
 384 #endif
 385 #ifndef O_RDONLY
 386 # define O_RDONLY 0
 387 #endif
 388 #ifndef O_WRONLY
 389 # define O_WRONLY 1
 390 #endif
 391 #ifndef O_BINARY
 392 # define O_BINARY 0
 393 #endif
 394
 395 /* Some systems define these in, e.g., param.h.  We undefine these names
 396    here to avoid the warnings.  We prefer to use our definitions since we
 397    know they are correct.  */
 398
 399 #undef MIN
 400 #undef MAX
 401 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
 402 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
 403
 404 /* Returns the least number N such that N * Y >= X.  */
 405 #define CEIL(x,y) (((x) + (y) - 1) / (y))
 406
 407 /* This macro rounds x up to the y boundary.  */
 408 #define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1))
 409
 410 /* This macro rounds x down to the y boundary.  */
 411 #define ROUND_DOWN(x,y) ((x) & ~((y) - 1))
 412
 413 #ifdef HAVE_SYS_WAIT_H
 414 #include <sys/wait.h>
 415 #endif
 416
 417 #ifndef WIFSIGNALED
 418 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
 419 #endif
 420 #ifndef WTERMSIG
 421 #define WTERMSIG(S) ((S) & 0x7f)
 422 #endif
 423 #ifndef WIFEXITED
 424 #define WIFEXITED(S) (((S) & 0xff) == 0)
 425 #endif
 426 #ifndef WEXITSTATUS
 427 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
 428 #endif
 429 #ifndef WSTOPSIG
 430 #define WSTOPSIG WEXITSTATUS
 431 #endif
 432 #ifndef WCOREDUMP
 433 #define WCOREDUMP(S) ((S) & WCOREFLG)
 434 #endif
 435 #ifndef WCOREFLG
 436 #define WCOREFLG 0200
 437 #endif
 438
 439 #include <signal.h>
 440 #if !defined (SIGCHLD) && defined (SIGCLD)
 441 # define SIGCHLD SIGCLD
 442 #endif
 443
 444 #ifdef HAVE_SYS_MMAN_H
 445 # include <sys/mman.h>
 446 #endif
 447
 448 #ifndef MAP_FAILED
 449 # define MAP_FAILED ((void *)-1)
 450 #endif
 451
 452 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
 453 # define MAP_ANONYMOUS MAP_ANON
 454 #endif
 455
 456 #ifdef HAVE_SYS_RESOURCE_H
 457 # include <sys/resource.h>
 458 #endif
 459
 460 #ifdef HAVE_SYS_TIMES_H
 461 # include <sys/times.h>
 462 #endif
 463
 464 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1.  If they
 465    are defined to 0 then we must provide the relevant declaration
 466    here.  These checks will be in the undefined state while configure
 467    is running so be careful to test "defined (HAVE_DECL_*)".  */
 468
 469 #ifdef __cplusplus
 470 extern "C" {
 471 #endif
 472
 473 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
 474 extern double atof (const char *);
 475 #endif
 476
 477 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
 478 extern long atol (const char *);
 479 #endif
 480
 481 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
 482 extern void free (void *);
 483 #endif
 484
 485 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
 486 extern char *getcwd (char *, size_t);
 487 #endif
 488
 489 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
 490 extern char *getenv (const char *);
 491 #endif
 492
 493 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
 494 extern int getopt (int, char * const *, const char *);
 495 #endif
 496
 497 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
 498 extern int getpagesize (void);
 499 #endif
 500
 501 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
 502 extern char *getwd (char *);
 503 #endif
 504
 505 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
 506 extern void *sbrk (int);
 507 #endif
 508
 509 #if defined (HAVE_DECL_SETENV) && !HAVE_DECL_SETENV
 510 int setenv(const char *, const char *, int);
 511 #endif
 512
 513 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
 514 extern char *strstr (const char *, const char *);
 515 #endif
 516
 517 #if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
 518 extern char *stpcpy (char *, const char *);
 519 #endif
 520
 521 #if defined (HAVE_DECL_UNSETENV) && !HAVE_DECL_UNSETENV
 522 int unsetenv(const char *);
 523 #endif
 524
 525 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
 526 extern void *malloc (size_t);
 527 #endif
 528
 529 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
 530 extern void *calloc (size_t, size_t);
 531 #endif
 532
 533 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
 534 extern void *realloc (void *, size_t);
 535 #endif
 536
 537 #ifdef __cplusplus
 538 }
 539 #endif
 540
 541 #ifdef HAVE_STDINT_H
 542 #include <stdint.h>
 543 #endif
 544
 545 #ifdef HAVE_INTTYPES_H
 546 #include <inttypes.h>
 547 #endif
 548
 549 #ifndef SIZE_MAX
 550 # define SIZE_MAX INTTYPE_MAXIMUM (size_t)
 551 #endif
 552
 553 #ifdef __cplusplus
 554 extern "C" {
 555 #endif
 556
 557 /* If the system doesn't provide strsignal, we get it defined in
 558    libiberty but no declaration is supplied.  */
 559 #if !defined (HAVE_STRSIGNAL) \
 560     || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
 561 # ifndef strsignal
 562 extern const char *strsignal (int);
 563 # endif
 564 #endif
 565
 566 #ifdef HAVE_GETRLIMIT
 567 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
 568 #  ifndef getrlimit
 569 struct rlimit;
 570 extern int getrlimit (int, struct rlimit *);
 571 #  endif
 572 # endif
 573 #endif
 574
 575 #ifdef HAVE_SETRLIMIT
 576 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
 577 #  ifndef setrlimit
 578 struct rlimit;
 579 extern int setrlimit (int, const struct rlimit *);
 580 #  endif
 581 # endif
 582 #endif
 583
 584 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
 585 extern void abort (void);
 586 #endif
 587
 588 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
 589 extern int snprintf (char *, size_t, const char *, ...);
 590 #endif
 591
 592 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
 593 extern int vsnprintf (char *, size_t, const char *, va_list);
 594 #endif
 595
 596 #ifdef __cplusplus
 597 }
 598 #endif
 599
 600 /* 1 if we have C99 designated initializers.  */
 601 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
 602 #ifdef __cplusplus
 603 #define HAVE_DESIGNATED_INITIALIZERS 0
 604 #else
 605 #define HAVE_DESIGNATED_INITIALIZERS \
 606   ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
 607 #endif
 608 #endif
 609
 610 #if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
 611 #ifdef __cplusplus
 612 #define HAVE_DESIGNATED_UNION_INITIALIZERS (GCC_VERSION >= 4007)
 613 #else
 614 #define HAVE_DESIGNATED_UNION_INITIALIZERS \
 615   ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
 616 #endif
 617 #endif
 618
 619 #if HAVE_SYS_STAT_H
 620 # include <sys/stat.h>
 621 #endif
 622
 623 /* Test if something is a normal file.  */
 624 #ifndef S_ISREG
 625 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 626 #endif
 627
 628 /* Test if something is a directory.  */
 629 #ifndef S_ISDIR
 630 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 631 #endif
 632
 633 /* Test if something is a character special file.  */
 634 #ifndef S_ISCHR
 635 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
 636 #endif
 637
 638 /* Test if something is a block special file.  */
 639 #ifndef S_ISBLK
 640 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
 641 #endif
 642
 643 /* Test if something is a socket.  */
 644 #ifndef S_ISSOCK
 645 # ifdef S_IFSOCK
 646 #   define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
 647 # else
 648 #   define S_ISSOCK(m) 0
 649 # endif
 650 #endif
 651
 652 /* Test if something is a FIFO.  */
 653 #ifndef S_ISFIFO
 654 # ifdef S_IFIFO
 655 #  define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
 656 # else
 657 #  define S_ISFIFO(m) 0
 658 # endif
 659 #endif
 660
 661 /* Define well known filenos if the system does not define them.  */
 662 #ifndef STDIN_FILENO
 663 # define STDIN_FILENO   0
 664 #endif
 665 #ifndef STDOUT_FILENO
 666 # define STDOUT_FILENO  1
 667 #endif
 668 #ifndef STDERR_FILENO
 669 # define STDERR_FILENO  2
 670 #endif
 671
 672 /* Some systems have mkdir that takes a single argument.  */
 673 #ifdef MKDIR_TAKES_ONE_ARG
 674 # define mkdir(a,b) mkdir (a)
 675 #endif
 676
 677 #ifndef HAVE_KILL
 678 # define kill(p,s) raise (s)
 679 #endif
 680
 681 /* Provide a way to print an address via printf.  */
 682 #ifndef HOST_PTR_PRINTF
 683 #define HOST_PTR_PRINTF "%p"
 684 #endif /* ! HOST_PTR_PRINTF */
 685
 686 /* By default, colon separates directories in a path.  */
 687 #ifndef PATH_SEPARATOR
 688 #define PATH_SEPARATOR ':'
 689 #endif
 690
 691 /* Filename handling macros.  */
 692 #include "filenames.h"
 693
 694 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible.  */
 695 #ifndef DIR_SEPARATOR
 696 # define DIR_SEPARATOR '/'
 697 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
 698 #  define DIR_SEPARATOR_2 '\\'
 699 # endif
 700 #endif
 701
 702 #if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
 703 /* If plugin support is enabled, we could use libdl.  */
 704 #include <dlfcn.h>
 705 #endif
 706
 707 /* Do not introduce a gmp.h dependency on the build system.  */
 708 #ifndef GENERATOR_FILE
 709 // sdcpp #include <gmp.h>
 710 #endif
 711
 712 /* Get libiberty declarations.  */
 713 #include "libiberty.h"
 714
 715 #undef FFS  /* Some systems predefine this symbol; don't let it interfere.  */
 716 #undef FLOAT /* Likewise.  */
 717 #undef ABS /* Likewise.  */
 718 #undef PC /* Likewise.  */
 719
 720 /* Provide a default for the HOST_BIT_BUCKET.
 721    This suffices for POSIX-like hosts.  */
 722
 723 #ifndef HOST_BIT_BUCKET
 724 #define HOST_BIT_BUCKET "/dev/null"
 725 #endif
 726
 727 #ifndef offsetof
 728 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 729 #endif
 730
 731 /* Various error reporting routines want to use __FUNCTION__.  */
 732 #if (GCC_VERSION < 2007)
 733 #ifndef __FUNCTION__
 734 #define __FUNCTION__ "?"
 735 #endif /* ! __FUNCTION__ */
 736 #endif
 737
 738 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
 739    the most likely value of A is B.  This feature was added at some point
 740    between 2.95 and 3.0.  Let's use 3.0 as the lower bound for now.  */
 741 #if (GCC_VERSION < 3000)
 742 #define __builtin_expect(a, b) (a)
 743 #endif
 744
 745 /* Some of the headers included by <memory> can use "abort" within a
 746    namespace, e.g. "_VSTD::abort();", which fails after we use the
 747    preprocessor to redefine "abort" as "fancy_abort" below.  */
 748
 749 #ifdef INCLUDE_MEMORY
 750 # include <memory>
 751 #endif
 752
 753 #ifdef INCLUDE_MALLOC_H
 754 #if defined(HAVE_MALLINFO) || defined(HAVE_MALLINFO2)
 755 #include <malloc.h>
 756 #endif
 757 #endif
 758
 759 #ifdef INCLUDE_ISL
 760 #ifdef HAVE_isl
 761 #include <isl/options.h>
 762 #include <isl/ctx.h>
 763 #include <isl/val.h>
 764 #include <isl/set.h>
 765 #include <isl/union_set.h>
 766 #include <isl/map.h>
 767 #include <isl/union_map.h>
 768 #include <isl/aff.h>
 769 #include <isl/constraint.h>
 770 #include <isl/flow.h>
 771 #include <isl/ilp.h>
 772 #include <isl/schedule.h>
 773 #include <isl/ast_build.h>
 774 #include <isl/schedule_node.h>
 775 #include <isl/id.h>
 776 #include <isl/space.h>
 777 #endif
 778 #endif
 779
 780 /* Redefine abort to report an internal error w/o coredump, and
 781    reporting the location of the error in the source file.  */
 782 extern void fancy_abort (const char *, int, const char *)
 783                                          ATTRIBUTE_NORETURN ATTRIBUTE_COLD;
 784 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
 785
 786 /* Use gcc_assert(EXPR) to test invariants.  */
 787 #if ENABLE_ASSERT_CHECKING
 788 #define gcc_assert(EXPR)                                                \
 789    ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
 790 #elif (GCC_VERSION >= 4005)
 791 #define gcc_assert(EXPR)                                                \
 792   ((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0))
 793 #else
 794 /* Include EXPR, so that unused variable warnings do not occur.  */
 795 #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
 796 #endif
 797
 798 #if CHECKING_P
 799 #define gcc_checking_assert(EXPR) gcc_assert (EXPR)
 800 #else
 801 /* N.B.: in release build EXPR is not evaluated.  */
 802 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
 803 #endif
 804
 805 #if GCC_VERSION >= 4000
 806 #define ALWAYS_INLINE inline __attribute__ ((always_inline))
 807 #else
 808 #define ALWAYS_INLINE inline
 809 #endif
 810
 811 #if GCC_VERSION >= 3004
 812 #define WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
 813 #else
 814 #define WARN_UNUSED_RESULT
 815 #endif
 816
 817 /* Use gcc_unreachable() to mark unreachable locations (like an
 818    unreachable default case of a switch.  Do not use gcc_assert(0).  */
 819 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
 820 #define gcc_unreachable() __builtin_unreachable ()
 821 #else
 822 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
 823 #endif
 824
 825 #if GCC_VERSION >= 7000 && defined(__has_attribute)
 826 # if __has_attribute(fallthrough)
 827 #  define gcc_fallthrough() __attribute__((fallthrough))
 828 # else
 829 #  define gcc_fallthrough()
 830 # endif
 831 #else
 832 # define gcc_fallthrough()
 833 #endif
 834
 835 #if GCC_VERSION >= 3001
 836 #define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X))
 837 #else
 838 #define STATIC_CONSTANT_P(X) (false && (X))
 839 #endif
 840
 841 /* static_assert (COND, MESSAGE) is available in C++11 onwards.  */
 842 #if __cplusplus >= 201103L
 843 #define STATIC_ASSERT(X) \
 844   static_assert ((X), #X)
 845 #else
 846 #define STATIC_ASSERT(X) \
 847   typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED
 848 #endif
 849
 850 /* Provide a fake boolean type.  We make no attempt to use the
 851    C99 _Bool, as it may not be available in the bootstrap compiler,
 852    and even if it is, it is liable to be buggy.
 853    This must be after all inclusion of system headers, as some of
 854    them will mess us up.  */
 855
 856 #undef TRUE
 857 #undef FALSE
 858
 859 #ifdef __cplusplus
 860   /* Obsolete.  */
 861 # define TRUE true
 862 # define FALSE false
 863 #else /* !__cplusplus */
 864 # undef bool
 865 # undef true
 866 # undef false
 867
 868 # define bool unsigned char
 869 # define true 1
 870 # define false 0
 871
 872   /* Obsolete.  */
 873 # define TRUE true
 874 # define FALSE false
 875 #endif /* !__cplusplus */
 876
 877 /* Some compilers do not allow the use of unsigned char in bitfields.  */
 878 #define BOOL_BITFIELD unsigned int
 879
 880 /* GCC older than 4.4 have broken C++ value initialization handling, see
 881    PR11309, PR30111, PR33916, PR82939 and PR84405 for more details.  */
 882 #if GCC_VERSION > 0 && GCC_VERSION < 4004 && !defined(__clang__)
 883 # define BROKEN_VALUE_INITIALIZATION
 884 #endif
 885
 886 /* As the last action in this file, we poison the identifiers that
 887    shouldn't be used.  Note, luckily gcc-3.0's token-based integrated
 888    preprocessor won't trip on poisoned identifiers that arrive from
 889    the expansion of macros.  E.g. #define strrchr rindex, won't error
 890    if rindex is poisoned after this directive is issued and later on
 891    strrchr is called.
 892
 893    Note: We define bypass macros for the few cases where we really
 894    want to use the libc memory allocation routines.  Otherwise we
 895    insist you use the "x" versions from libiberty.  */
 896
 897 #define really_call_malloc malloc
 898 #define really_call_calloc calloc
 899 #define really_call_realloc realloc
 900
 901 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
 902 /* Flex and bison use malloc and realloc.  Yuk.  Note that this means
 903    really_call_* cannot be used in a .l or .y file.  */
 904 #define malloc xmalloc
 905 #define realloc xrealloc
 906 #endif
 907
 908 #if (GCC_VERSION >= 3000)
 909
 910 /* Note autoconf checks for prototype declarations and includes
 911    system.h while doing so.  Only poison these tokens if actually
 912    compiling gcc, so that the autoconf declaration tests for malloc
 913    etc don't spuriously fail.  */
 914 #ifdef IN_GCC
 915
 916 #undef calloc
 917 #undef strdup
 918 #undef strndup
 919  #pragma GCC poison calloc strdup strndup
 920
 921 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
 922 #undef malloc
 923 #undef realloc
 924  #pragma GCC poison malloc realloc
 925 #endif
 926
 927 /* The %m format should be used when GCC's main diagnostic functions
 928    supporting %m are available, and xstrerror from libiberty
 929    otherwise.  */
 930 #undef strerror
 931  #pragma GCC poison strerror
 932
 933 /* loc_t is defined on some systems and too inviting for some
 934    programmers to avoid.  */
 935 #undef loc_t
 936  #pragma GCC poison loc_t
 937
 938 /* Old target macros that have moved to the target hooks structure.  */
 939  #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN                      \
 940         FUNCTION_PROLOGUE FUNCTION_EPILOGUE                             \
 941         FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE                   \
 942         DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES  \
 943         VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE       \
 944         SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES         \
 945         MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES     \
 946         MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR       \
 947         ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE       \
 948         WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
 949         ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL     \
 950         ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS     \
 951         ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
 952         ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
 953         INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
 954         DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL   \
 955         MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
 956         PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM     \
 957         ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
 958         STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING                    \
 959         PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM  \
 960         SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS                  \
 961         DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS          \
 962         HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX      \
 963         MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE               \
 964         VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN                  \
 965         FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL              \
 966         ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
 967         CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE         \
 968         TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING    \
 969         RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS           \
 970         OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P                     \
 971         USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO                        \
 972         CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME        \
 973         HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
 974         OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
 975         ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE          \
 976         LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE     \
 977         CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P              \
 978         STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD                        \
 979         HARD_REGNO_CALL_PART_CLOBBERED HARD_REGNO_MODE_OK               \
 980         MODES_TIEABLE_P FUNCTION_ARG_PADDING SLOW_UNALIGNED_ACCESS      \
 981         HARD_REGNO_NREGS SECONDARY_MEMORY_NEEDED_MODE                   \
 982         SECONDARY_MEMORY_NEEDED CANNOT_CHANGE_MODE_CLASS                \
 983         TRULY_NOOP_TRUNCATION FUNCTION_ARG_OFFSET CONSTANT_ALIGNMENT    \
 984         STARTING_FRAME_OFFSET
 985
 986 /* Target macros only used for code built for the target, that have
 987    moved to libgcc-tm.h or have never been present elsewhere.  */
 988  #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX          \
 989         MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK   \
 990         REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
 991
 992 /* Other obsolete target macros, or macros that used to be in target
 993    headers and were not used, and may be obsolete or may never have
 994    been used.  */
 995  #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES     \
 996         ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK    \
 997         DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
 998         OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR                      \
 999         LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC      \
1000         STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE          \
1001         SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH   \
1002         TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE                      \
1003         NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
1004         BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER         \
1005         FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE                    \
1006         MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER      \
1007         ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN    \
1008         OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE    \
1009         ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT        \
1010         DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME         \
1011         DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE             \
1012         INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT    \
1013         EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER         \
1014         LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES       \
1015         LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE                    \
1016         CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME     \
1017         FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP          \
1018         PROMOTED_MODE EXPAND_BUILTIN_VA_END                                \
1019         LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE    \
1020         GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE    \
1021         MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD      \
1022         FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE              \
1023         TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE              \
1024         DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE               \
1025         SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY                      \
1026         SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE                     \
1027         DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG     \
1028         COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB  \
1029         ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER        \
1030         GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER          \
1031         PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END          \
1032         DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE          \
1033         NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE                \
1034         CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0   \
1035         TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT           \
1036         LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE                \
1037         TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC         \
1038         PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP      \
1039         EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION       \
1040         TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION           \
1041         SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON       \
1042         ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE                    \
1043         STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD                  \
1044         ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE                 \
1045         ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES  \
1046         SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
1047         TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP          \
1048         HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE   \
1049         FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST  \
1050         USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE       \
1051         FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION             \
1052         MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS                    \
1053         SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES                     \
1054         PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR                   \
1055         STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT                    \
1056         LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO          \
1057         IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES DBX_OUTPUT_LBRAC    \
1058         DBX_OUTPUT_NFUN DBX_OUTPUT_RBRAC RANGE_TEST_NON_SHORT_CIRCUIT      \
1059         REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P                  \
1060         TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS       \
1061         IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP           \
1062         UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP                  \
1063         USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \
1064         CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC                     \
1065         GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE              \
1066         ELIGIBLE_FOR_EPILOGUE_DELAY TARGET_C99_FUNCTIONS TARGET_HAS_SINCOS \
1067         REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P                        \
1068         CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT                      \
1069         REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT                 \
1070         EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT                       \
1071         EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P          \
1072         CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL                  \
1073         ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \
1074         LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE                         \
1075         EH_FRAME_IN_DATA_SECTION TARGET_FLT_EVAL_METHOD_NON_DEFAULT        \
1076         JCR_SECTION_NAME TARGET_USE_JCR_SECTION SDB_DEBUGGING_INFO         \
1077         SDB_DEBUG NO_IMPLICIT_EXTERN_C NOTICE_UPDATE_CC                    \
1078         CC_STATUS_MDEP_INIT CC_STATUS_MDEP CC_STATUS
1079
1080 /* Hooks that are no longer used.  */
1081  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE   \
1082         LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
1083         LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
1084         LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
1085         LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
1086         LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
1087         TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
1088         LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
1089         TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
1090         TARGET_IRA_COVER_CLASSES TARGET_HELP \
1091         TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \
1092         TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \
1093         TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \
1094         TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING \
1095         EXTENDED_SDB_BASIC_TYPES TARGET_INVALID_PARAMETER_TYPE \
1096         TARGET_INVALID_RETURN_TYPE
1097
1098 /* Arrays that were deleted in favor of a functional interface.  */
1099  #pragma GCC poison built_in_decls implicit_built_in_decls
1100
1101 /* Hooks into libgcc2.  */
1102  #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
1103    LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
1104
1105 /* Miscellaneous macros that are no longer used.  */
1106  #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
1107
1108 /* Libiberty macros that are no longer used in GCC.  */
1109 #undef ANSI_PROTOTYPES
1110 #undef PTR_CONST
1111 #undef LONG_DOUBLE
1112 #undef VPARAMS
1113 #undef VA_OPEN
1114 #undef VA_FIXEDARG
1115 #undef VA_CLOSE
1116 #undef VA_START
1117  #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
1118   VA_FIXEDARG VA_CLOSE VA_START
1119 #endif /* IN_GCC */
1120
1121 /* Front ends should never have to include middle-end headers.  Enforce
1122    this by poisoning the header double-include protection defines.  */
1123 #ifdef IN_GCC_FRONTEND
1124 #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
1125 #endif
1126
1127 /* Note: not all uses of the `index' token (e.g. variable names and
1128    structure members) have been eliminated.  */
1129 #undef bcopy
1130 #undef bzero
1131 #undef bcmp
1132 #undef rindex
1133  #pragma GCC poison bcopy bzero bcmp rindex
1134
1135 /* Poison ENABLE_CHECKING macro that should be replaced with
1136    'if (flag_checking)', or with CHECKING_P macro.  */
1137 #pragma GCC poison ENABLE_CHECKING
1138
1139 #endif /* GCC >= 3.0 */
1140
1141 /* This macro allows casting away const-ness to pass -Wcast-qual
1142    warnings.  DO NOT USE THIS UNLESS YOU REALLY HAVE TO!  It should
1143    only be used in certain specific cases.  One valid case is where
1144    the C standard definitions or prototypes force you to.  E.g. if you
1145    need to free a const object, or if you pass a const string to
1146    execv, et al.  Another valid use would be in an allocation function
1147    that creates const objects that need to be initialized.  In some
1148    cases we have non-const functions that return the argument
1149    (e.g. next_nonnote_insn).  Rather than create const shadow
1150    functions, we can cast away const-ness in calling these interfaces
1151    if we're careful to verify that the called function does indeed not
1152    modify its argument and the return value is only used in a const
1153    context.  (This can be somewhat dangerous as these assumptions can
1154    change after the fact).  Beyond these uses, most other cases of
1155    using this macro should be viewed with extreme caution.  */
1156
1157 #ifdef __cplusplus
1158 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
1159 #else
1160 #if defined(__GNUC__) && GCC_VERSION > 4000
1161 /* GCC 4.0.x has a bug where it may ICE on this expression,
1162    so does GCC 3.4.x (PR17436).  */
1163 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
1164 #elif defined(__GNUC__)
1165 static inline char *
1166 helper_const_non_const_cast (const char *p)
1167 {
1168   union {
1169     const char *const_c;
1170     char *c;
1171   } val;
1172   val.const_c = p;
1173   return val.c;
1174 }
1175
1176 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \
1177         ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
1178 #else
1179 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
1180 #endif
1181 #endif
1182 #define CONST_CAST(TYPE,X) CONST_CAST2 (TYPE, const TYPE, (X))
1183 #define CONST_CAST_TREE(X) CONST_CAST (union tree_node *, (X))
1184 #define CONST_CAST_RTX(X) CONST_CAST (struct rtx_def *, (X))
1185 #define CONST_CAST_RTX_INSN(X) CONST_CAST (struct rtx_insn *, (X))
1186 #define CONST_CAST_BB(X) CONST_CAST (struct basic_block_def *, (X))
1187 #define CONST_CAST_GIMPLE(X) CONST_CAST (gimple *, (X))
1188
1189 /* Activate certain diagnostics as warnings (not errors via the
1190    -Werror flag).  */
1191 #if GCC_VERSION >= 4003
1192 /* If asserts are disabled, activate -Wuninitialized as a warning (not
1193    an error/-Werror).  */
1194 #ifndef ENABLE_ASSERT_CHECKING
1195 #pragma GCC diagnostic warning "-Wuninitialized"
1196 #endif
1197 #endif
1198
1199 #ifdef ENABLE_VALGRIND_ANNOTATIONS
1200 # ifdef HAVE_VALGRIND_MEMCHECK_H
1201 #  include <valgrind/memcheck.h>
1202 # elif defined HAVE_MEMCHECK_H
1203 #  include <memcheck.h>
1204 # else
1205 #  include <valgrind.h>
1206 # endif
1207 /* Compatibility macros to let valgrind 3.1 work.  */
1208 # ifndef VALGRIND_MAKE_MEM_NOACCESS
1209 #  define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
1210 # endif
1211 # ifndef VALGRIND_MAKE_MEM_DEFINED
1212 #  define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
1213 # endif
1214 # ifndef VALGRIND_MAKE_MEM_UNDEFINED
1215 #  define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
1216 # endif
1217 #else
1218 /* Avoid #ifdef:s when we can help it.  */
1219 #define VALGRIND_DISCARD(x)
1220 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
1221 #define VALGRIND_FREELIKE_BLOCK(x,y)
1222 #endif
1223
1224 /* Macros to temporarily ignore some warnings.  */
1225 #if GCC_VERSION >= 6000
1226 #define GCC_DIAGNOSTIC_STRINGIFY(x) #x
1227 #define GCC_DIAGNOSTIC_PUSH_IGNORED(x) \
1228   _Pragma ("GCC diagnostic push") \
1229   _Pragma (GCC_DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored #x))
1230 #define GCC_DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
1231 #else
1232 #define GCC_DIAGNOSTIC_PUSH_IGNORED(x)
1233 #define GCC_DIAGNOSTIC_POP
1234 #endif
1235
1236 /* In LTO -fwhole-program build we still want to keep the debug functions available
1237    for debugger.  Mark them as used to prevent removal.  */
1238 #if (GCC_VERSION > 4000)
1239 #define DEBUG_FUNCTION __attribute__ ((__used__))
1240 #define DEBUG_VARIABLE __attribute__ ((__used__))
1241 #else
1242 #define DEBUG_FUNCTION
1243 #define DEBUG_VARIABLE
1244 #endif
1245
1246 /* General macro to extract bit Y of X.  */
1247 #define TEST_BIT(X, Y) (((X) >> (Y)) & 1)
1248
1249 /* Get definitions of HOST_WIDE_INT.  */
1250 #include "hwint.h"
1251
1252 typedef int sort_r_cmp_fn (const void *, const void *, void *);
1253 void qsort_chk (void *, size_t, size_t, sort_r_cmp_fn *, void *);
1254 void gcc_sort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *);
1255 void gcc_qsort (void *, size_t, size_t, int (*)(const void *, const void *));
1256 void gcc_stablesort (void *, size_t, size_t,
1257                      int (*)(const void *, const void *));
1258 void gcc_stablesort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *data);
1259 /* Redirect four-argument qsort calls to gcc_qsort; one-argument invocations
1260    correspond to vec::qsort, and use C qsort internally.  */
1261 #define PP_5th(a1, a2, a3, a4, a5, ...) a5
1262 #undef qsort
1263 #define qsort(...) PP_5th (__VA_ARGS__, gcc_qsort, 3, 2, qsort, 0) (__VA_ARGS__)
1264
1265 #define ONE_K 1024
1266 #define ONE_M (ONE_K * ONE_K)
1267 #define ONE_G (ONE_K * ONE_M)
1268
1269 /* Display a number as an integer multiple of either:
1270    - 1024, if said integer is >= to 10 K (in base 2)
1271    - 1024 * 1024, if said integer is >= 10 M in (base 2)
1272  */
1273 #define SIZE_SCALE(x) (((x) < 10 * ONE_K \
1274                         ? (x) \
1275                         : ((x) < 10 * ONE_M \
1276                            ? (x) / ONE_K \
1277                            : (x) / ONE_M)))
1278
1279 /* For a given integer, display either:
1280    - the character 'k', if the number is higher than 10 K (in base 2)
1281      but strictly lower than 10 M (in base 2)
1282    - the character 'M' if the number is higher than 10 M (in base2)
1283    - the charcter ' ' if the number is strictly lower  than 10 K  */
1284 #define SIZE_LABEL(x) ((x) < 10 * ONE_K ? ' ' : ((x) < 10 * ONE_M ? 'k' : 'M'))
1285
1286 /* Display an integer amount as multiple of 1K or 1M (in base 2).
1287    Display the correct unit (either k, M, or ' ') after the amount, as
1288    well.  */
1289 #define SIZE_AMOUNT(size) (uint64_t)SIZE_SCALE (size), SIZE_LABEL (size)
1290
1291 /* Format string particle for printing a SIZE_AMOUNT with N being the width
1292    of the number.  */
1293 #define PRsa(n) "%" #n PRIu64 "%c"
1294
1295 /* System headers may define NULL to be an integer (e.g. 0L), which cannot be
1296    used safely in certain contexts (e.g. as sentinels).  Redefine NULL to
1297    nullptr in order to make it safer.  Note that this might confuse system
1298    headers, however, by convention they must not be included after this point.
1299 */
1300 #ifdef __cplusplus
1301 #undef NULL
1302 #define NULL nullptr
1303 #endif
1304
1305 /* Return true if STR string starts with PREFIX.  */
1306
1307 static inline bool
1308 startswith (const char *str, const char *prefix)
1309 {
1310   return strncmp (str, prefix, strlen (prefix)) == 0;
1311 }
1312
1313 /* Return true if STR string ends with SUFFIX.  */
1314
1315 static inline bool
1316 endswith (const char *str, const char *suffix)
1317 {
1318   size_t str_len = strlen (str);
1319   size_t suffix_len = strlen (suffix);
1320   if (str_len < suffix_len)
1321     return false;
1322
1323   return memcmp (str + str_len - suffix_len, suffix, suffix_len) == 0;
1324 }
1325
1326 #endif /* ! GCC_SYSTEM_H */