gcc/system.h

   1 /* Get common system includes and various definitions and declarations based
   2    on autoconf macros.
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
   4    Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 2, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to the Free
  20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21 02111-1307, USA.  */
  22
  23
  24 #ifndef GCC_SYSTEM_H
  25 #define GCC_SYSTEM_H
  26
  27 /* We must include stdarg.h before stdio.h.  */
  28 #include <stdarg.h>
  29
  30 #ifndef va_copy
  31 # ifdef __va_copy
  32 #   define va_copy(d,s)  __va_copy((d),(s))
  33 # else
  34 #   define va_copy(d,s)  ((d) = (s))
  35 # endif
  36 #endif
  37
  38 #ifdef HAVE_STDDEF_H
  39 # include <stddef.h>
  40 #endif
  41
  42 #include <stdio.h>
  43
  44 /* Define a generic NULL if one hasn't already been defined.  */
  45 #ifndef NULL
  46 #define NULL 0
  47 #endif
  48
  49 /* The compiler is not a multi-threaded application and therefore we
  50    do not have to use the locking functions.  In fact, using the locking
  51    functions can cause the compiler to be significantly slower under
  52    I/O bound conditions (such as -g -O0 on very large source files).
  53
  54    HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
  55    code is multi-thread safe by default.  If it is set to 0, then do
  56    not worry about using the _unlocked functions.
  57
  58    fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
  59    extensions and need to be prototyped by hand (since we do not
  60    define _GNU_SOURCE).  */
  61
  62 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
  63
  64 # ifdef HAVE_PUTC_UNLOCKED
  65 #  undef putc
  66 #  define putc(C, Stream) putc_unlocked (C, Stream)
  67 # endif
  68 # ifdef HAVE_FPUTC_UNLOCKED
  69 #  undef fputc
  70 #  define fputc(C, Stream) fputc_unlocked (C, Stream)
  71 # endif
  72
  73 # ifdef HAVE_FPUTS_UNLOCKED
  74 #  undef fputs
  75 #  define fputs(String, Stream) fputs_unlocked (String, Stream)
  76 #  if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
  77 extern int fputs_unlocked (const char *, FILE *);
  78 #  endif
  79 # endif
  80 # ifdef HAVE_FWRITE_UNLOCKED
  81 #  undef fwrite
  82 #  define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
  83 #  if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
  84 extern int fwrite_unlocked (const void *, size_t, size_t, FILE *);
  85 #  endif
  86 # endif
  87 # ifdef HAVE_FPRINTF_UNLOCKED
  88 #  undef fprintf
  89 /* We can't use a function-like macro here because we don't know if
  90    we have varargs macros.  */
  91 #  define fprintf fprintf_unlocked
  92 #  if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
  93 extern int fprintf_unlocked (FILE *, const char *, ...);
  94 #  endif
  95 # endif
  96
  97 #endif
  98
  99 /* ??? Glibc's fwrite/fread_unlocked macros cause
 100    "warning: signed and unsigned type in conditional expression".  */
 101 #undef fread_unlocked
 102 #undef fwrite_unlocked
 103
 104 /* There are an extraordinary number of issues with <ctype.h>.
 105    The last straw is that it varies with the locale.  Use libiberty's
 106    replacement instead.  */
 107 #include <safe-ctype.h>
 108
 109 #include <sys/types.h>
 110
 111 #include <errno.h>
 112
 113 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
 114 extern int errno;
 115 #endif
 116
 117 /* Some of glibc's string inlines cause warnings.  Plus we'd rather
 118    rely on (and therefore test) GCC's string builtins.  */
 119 #define __NO_STRING_INLINES
 120
 121 #ifdef STRING_WITH_STRINGS
 122 # include <string.h>
 123 # include <strings.h>
 124 #else
 125 # ifdef HAVE_STRING_H
 126 #  include <string.h>
 127 # else
 128 #  ifdef HAVE_STRINGS_H
 129 #   include <strings.h>
 130 #  endif
 131 # endif
 132 #endif
 133
 134 #ifdef HAVE_STDLIB_H
 135 # include <stdlib.h>
 136 #endif
 137
 138 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
 139    FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
 140    or 0 and 1 if those macros are not defined.  */
 141 #ifndef SUCCESS_EXIT_CODE
 142 # ifdef EXIT_SUCCESS
 143 #  define SUCCESS_EXIT_CODE EXIT_SUCCESS
 144 # else
 145 #  define SUCCESS_EXIT_CODE 0
 146 # endif
 147 #endif
 148
 149 #ifndef FATAL_EXIT_CODE
 150 # ifdef EXIT_FAILURE
 151 #  define FATAL_EXIT_CODE EXIT_FAILURE
 152 # else
 153 #  define FATAL_EXIT_CODE 1
 154 # endif
 155 #endif
 156
 157 #ifdef HAVE_UNISTD_H
 158 # include <unistd.h>
 159 #endif
 160
 161 #ifdef HAVE_SYS_PARAM_H
 162 # include <sys/param.h>
 163 /* We use this identifier later and it appears in some vendor param.h's.  */
 164 # undef PREFETCH
 165 #endif
 166
 167 #if HAVE_LIMITS_H
 168 # include <limits.h>
 169 #endif
 170
 171 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT.  */
 172 #include "hwint.h"
 173
 174 /* A macro to determine whether a VALUE lies inclusively within a
 175    certain range without evaluating the VALUE more than once.  This
 176    macro won't warn if the VALUE is unsigned and the LOWER bound is
 177    zero, as it would e.g. with "VALUE >= 0 && ...".  Note the LOWER
 178    bound *is* evaluated twice, and LOWER must not be greater than
 179    UPPER.  However the bounds themselves can be either positive or
 180    negative.  */
 181 #define IN_RANGE(VALUE, LOWER, UPPER) \
 182   ((unsigned HOST_WIDE_INT) ((VALUE) - (LOWER)) <= ((UPPER) - (LOWER)))
 183
 184 /* Infrastructure for defining missing _MAX and _MIN macros.  Note that
 185    macros defined with these cannot be used in #if.  */
 186
 187 /* The extra casts work around common compiler bugs.  */
 188 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
 189 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
 190    It is necessary at least when t == time_t.  */
 191 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
 192                              ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
 193 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
 194
 195 /* Use that infrastructure to provide a few constants.  */
 196 #ifndef UCHAR_MAX
 197 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
 198 #endif
 199
 200 #ifdef TIME_WITH_SYS_TIME
 201 # include <sys/time.h>
 202 # include <time.h>
 203 #else
 204 # if HAVE_SYS_TIME_H
 205 #  include <sys/time.h>
 206 # else
 207 #  ifdef HAVE_TIME_H
 208 #   include <time.h>
 209 #  endif
 210 # endif
 211 #endif
 212
 213 #ifdef HAVE_FCNTL_H
 214 # include <fcntl.h>
 215 #else
 216 # ifdef HAVE_SYS_FILE_H
 217 #  include <sys/file.h>
 218 # endif
 219 #endif
 220
 221 #ifndef SEEK_SET
 222 # define SEEK_SET 0
 223 # define SEEK_CUR 1
 224 # define SEEK_END 2
 225 #endif
 226 #ifndef F_OK
 227 # define F_OK 0
 228 # define X_OK 1
 229 # define W_OK 2
 230 # define R_OK 4
 231 #endif
 232 #ifndef O_RDONLY
 233 # define O_RDONLY 0
 234 #endif
 235 #ifndef O_WRONLY
 236 # define O_WRONLY 1
 237 #endif
 238
 239 /* Some systems define these in, e.g., param.h.  We undefine these names
 240    here to avoid the warnings.  We prefer to use our definitions since we
 241    know they are correct.  */
 242
 243 #undef MIN
 244 #undef MAX
 245 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
 246 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
 247
 248 /* Returns the least number N such that N * Y >= X.  */
 249 #define CEIL(x,y) (((x) + (y) - 1) / (y))
 250
 251 #ifdef HAVE_SYS_WAIT_H
 252 #include <sys/wait.h>
 253 #endif
 254
 255 #ifndef WIFSIGNALED
 256 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
 257 #endif
 258 #ifndef WTERMSIG
 259 #define WTERMSIG(S) ((S) & 0x7f)
 260 #endif
 261 #ifndef WIFEXITED
 262 #define WIFEXITED(S) (((S) & 0xff) == 0)
 263 #endif
 264 #ifndef WEXITSTATUS
 265 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
 266 #endif
 267 #ifndef WSTOPSIG
 268 #define WSTOPSIG WEXITSTATUS
 269 #endif
 270 #ifndef WCOREDUMP
 271 #define WCOREDUMP(S) ((S) & WCOREFLG)
 272 #endif
 273 #ifndef WCOREFLG
 274 #define WCOREFLG 0200
 275 #endif
 276
 277 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1.  If they
 278    are defined to 0 then we must provide the relevant declaration
 279    here.  These checks will be in the undefined state while configure
 280    is running so be careful to test "defined (HAVE_DECL_*)".  */
 281
 282 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
 283 extern double atof (const char *);
 284 #endif
 285
 286 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
 287 extern long atol (const char *);
 288 #endif
 289
 290 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
 291 extern void free (void *);
 292 #endif
 293
 294 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
 295 extern char *getcwd (char *, size_t);
 296 #endif
 297
 298 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
 299 extern char *getenv (const char *);
 300 #endif
 301
 302 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
 303 extern int getopt (int, char * const *, const char *);
 304 #endif
 305
 306 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
 307 extern char *getwd (char *);
 308 #endif
 309
 310 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
 311 extern void *sbrk (int);
 312 #endif
 313
 314 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
 315 extern char *strstr (const char *, const char *);
 316 #endif
 317
 318 #ifdef HAVE_MALLOC_H
 319 #include <malloc.h>
 320 #endif
 321
 322 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
 323 extern void *malloc (size_t);
 324 #endif
 325
 326 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
 327 extern void *calloc (size_t, size_t);
 328 #endif
 329
 330 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
 331 extern void *realloc (void *, size_t);
 332 #endif
 333
 334 /* If the system doesn't provide strsignal, we get it defined in
 335    libiberty but no declaration is supplied.  */
 336 #if !defined (HAVE_STRSIGNAL) \
 337     || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
 338 # ifndef strsignal
 339 extern const char *strsignal (int);
 340 # endif
 341 #endif
 342
 343 #ifdef HAVE_GETRLIMIT
 344 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
 345 #  ifndef getrlimit
 346 struct rlimit;
 347 extern int getrlimit (int, struct rlimit *);
 348 #  endif
 349 # endif
 350 #endif
 351
 352 #ifdef HAVE_SETRLIMIT
 353 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
 354 #  ifndef setrlimit
 355 struct rlimit;
 356 extern int setrlimit (int, const struct rlimit *);
 357 #  endif
 358 # endif
 359 #endif
 360
 361 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
 362 extern void abort (void);
 363 #endif
 364
 365 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
 366 extern int snprintf (char *, size_t, const char *, ...);
 367 #endif
 368
 369 /* 1 if we have C99 designated initializers.  */
 370 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
 371 #define HAVE_DESIGNATED_INITIALIZERS \
 372   ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
 373 #endif
 374
 375 /* 1 if we have _Bool.  */
 376 #ifndef HAVE__BOOL
 377 # define HAVE__BOOL \
 378    ((GCC_VERSION >= 3000) || (__STDC_VERSION__ >= 199901L))
 379 #endif
 380
 381
 382 #if HAVE_SYS_STAT_H
 383 # include <sys/stat.h>
 384 #endif
 385
 386 /* Test if something is a normal file.  */
 387 #ifndef S_ISREG
 388 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 389 #endif
 390
 391 /* Test if something is a directory.  */
 392 #ifndef S_ISDIR
 393 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 394 #endif
 395
 396 /* Test if something is a character special file.  */
 397 #ifndef S_ISCHR
 398 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
 399 #endif
 400
 401 /* Test if something is a block special file.  */
 402 #ifndef S_ISBLK
 403 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
 404 #endif
 405
 406 /* Test if something is a socket.  */
 407 #ifndef S_ISSOCK
 408 # ifdef S_IFSOCK
 409 #   define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
 410 # else
 411 #   define S_ISSOCK(m) 0
 412 # endif
 413 #endif
 414
 415 /* Test if something is a FIFO.  */
 416 #ifndef S_ISFIFO
 417 # ifdef S_IFIFO
 418 #  define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
 419 # else
 420 #  define S_ISFIFO(m) 0
 421 # endif
 422 #endif
 423
 424 /* Define well known filenos if the system does not define them.  */
 425 #ifndef STDIN_FILENO
 426 # define STDIN_FILENO   0
 427 #endif
 428 #ifndef STDOUT_FILENO
 429 # define STDOUT_FILENO  1
 430 #endif
 431 #ifndef STDERR_FILENO
 432 # define STDERR_FILENO  2
 433 #endif
 434
 435 /* Some systems have mkdir that takes a single argument.  */
 436 #ifdef MKDIR_TAKES_ONE_ARG
 437 # define mkdir(a,b) mkdir(a)
 438 #endif
 439
 440 /* Provide a way to print an address via printf.  */
 441 #ifndef HOST_PTR_PRINTF
 442 # ifdef HAVE_PRINTF_PTR
 443 #  define HOST_PTR_PRINTF "%p"
 444 # elif SIZEOF_INT == SIZEOF_VOID_P
 445 #  define HOST_PTR_PRINTF "%x"
 446 # elif SIZEOF_LONG == SIZEOF_VOID_P
 447 #  define HOST_PTR_PRINTF "%lx"
 448 # else
 449 #  define HOST_PTR_PRINTF "%llx"
 450 # endif
 451 #endif /* ! HOST_PTR_PRINTF */
 452
 453 /* By default, colon separates directories in a path.  */
 454 #ifndef PATH_SEPARATOR
 455 #define PATH_SEPARATOR ':'
 456 #endif
 457
 458 /* Filename handling macros.  */
 459 #include "filenames.h"
 460
 461 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible.  */
 462 #ifndef DIR_SEPARATOR
 463 # define DIR_SEPARATOR '/'
 464 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
 465 #  define DIR_SEPARATOR_2 '\\'
 466 # endif
 467 #endif
 468
 469 /* Get libiberty declarations.  */
 470 #include "libiberty.h"
 471
 472 /* Provide a default for the HOST_BIT_BUCKET.
 473    This suffices for POSIX-like hosts.  */
 474
 475 #ifndef HOST_BIT_BUCKET
 476 #define HOST_BIT_BUCKET "/dev/null"
 477 #endif
 478
 479 /* Be conservative and only use enum bitfields with GCC.
 480    FIXME: provide a complete autoconf test for buggy enum bitfields.  */
 481
 482 #if (GCC_VERSION > 2000)
 483 #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE
 484 #else
 485 #define ENUM_BITFIELD(TYPE) unsigned int
 486 #endif
 487
 488 /* We only use bool bitfields with gcc3.  Some supposedly C99
 489    compilers don't handle them correctly.  */
 490 #if (GCC_VERSION >= 3000)
 491 #define BOOL_BITFIELD _Bool
 492 #else
 493 #define BOOL_BITFIELD unsigned int
 494 #endif
 495
 496 #ifndef offsetof
 497 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 498 #endif
 499
 500 /* Various error reporting routines want to use __FUNCTION__.  */
 501 #if (GCC_VERSION < 2007)
 502 #ifndef __FUNCTION__
 503 #define __FUNCTION__ "?"
 504 #endif /* ! __FUNCTION__ */
 505 #endif
 506
 507 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
 508    the most likely value of A is B.  This feature was added at some point
 509    between 2.95 and 3.0.  Let's use 3.0 as the lower bound for now.  */
 510 #if (GCC_VERSION < 3000)
 511 #define __builtin_expect(a, b) (a)
 512 #endif
 513
 514 /* Provide some sort of boolean type.  We use stdbool.h if it's
 515   available.  This must be after all inclusion of system headers,
 516   as some of them will mess us up.  */
 517 #undef bool
 518 #undef true
 519 #undef false
 520 #undef TRUE
 521 #undef FALSE
 522
 523 #ifdef HAVE_STDBOOL_H
 524 # include <stdbool.h>
 525 #else
 526 # if !HAVE__BOOL
 527 typedef char _Bool;
 528 # endif
 529 # define bool _Bool
 530 # define true 1
 531 # define false 0
 532 #endif
 533
 534 #define TRUE true
 535 #define FALSE false
 536
 537 /* As the last action in this file, we poison the identifiers that
 538    shouldn't be used.  Note, luckily gcc-3.0's token-based integrated
 539    preprocessor won't trip on poisoned identifiers that arrive from
 540    the expansion of macros.  E.g. #define strrchr rindex, won't error
 541    if rindex is poisoned after this directive is issued and later on
 542    strrchr is called.
 543
 544    Note: We define bypass macros for the few cases where we really
 545    want to use the libc memory allocation routines.  Otherwise we
 546    insist you use the "x" versions from libiberty.  */
 547
 548 #define really_call_malloc malloc
 549 #define really_call_calloc calloc
 550 #define really_call_realloc realloc
 551
 552 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
 553 /* Flex and bison use malloc and realloc.  Yuk.  Note that this means
 554    really_call_* cannot be used in a .l or .y file.  */
 555 #define malloc xmalloc
 556 #define realloc xrealloc
 557 #endif
 558
 559 #if (GCC_VERSION >= 3000)
 560
 561 /* Note autoconf checks for prototype declarations and includes
 562    system.h while doing so.  Only poison these tokens if actually
 563    compiling gcc, so that the autoconf declaration tests for malloc
 564    etc don't spuriously fail.  */
 565 #ifdef IN_GCC
 566 #undef calloc
 567 #undef strdup
 568  #pragma GCC poison calloc strdup
 569
 570 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
 571 #undef malloc
 572 #undef realloc
 573  #pragma GCC poison malloc realloc
 574 #endif
 575
 576 /* Old target macros that have moved to the target hooks structure.  */
 577  #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN                      \
 578         FUNCTION_PROLOGUE FUNCTION_EPILOGUE                             \
 579         FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE                   \
 580         DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES  \
 581         VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE       \
 582         SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES         \
 583         MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES     \
 584         MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR       \
 585         ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE       \
 586         WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
 587         ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL     \
 588         ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS     \
 589         ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
 590         ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
 591         INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
 592         DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL   \
 593         MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
 594         PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM     \
 595         ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS                   \
 596         STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING                    \
 597         PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM  \
 598         SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS                  \
 599         DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS
 600
 601 /* Other obsolete target macros, or macros that used to be in target
 602    headers and were not used, and may be obsolete or may never have
 603    been used.  */
 604  #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES     \
 605         ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK    \
 606         DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
 607         OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR                      \
 608         LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC      \
 609         STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE          \
 610         SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH   \
 611         TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE                      \
 612         NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
 613         BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER         \
 614         FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE                    \
 615         MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP                \
 616         ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL ASM_OUTPUT_INTERNAL_LABEL \
 617         OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE    \
 618         ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT        \
 619         DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME         \
 620         DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE             \
 621         INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT    \
 622         EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER         \
 623         LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES       \
 624         LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE                    \
 625         CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME     \
 626         FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP          \
 627         PROMOTED_MODE EXPAND_BUILTIN_VA_END                                \
 628         LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE    \
 629         GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE    \
 630         MAX_WCHAR_TYPE_SIZE GCOV_TYPE_SIZE SHARED_SECTION_ASM_OP           \
 631         INTEGRATE_THRESHOLD                                                \
 632         FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE              \
 633         TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE              \
 634         DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE               \
 635         SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY                      \
 636         SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE
 637
 638 /* Hooks that are no longer used.  */
 639  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE   \
 640         LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES
 641
 642 /* Libiberty macros that are no longer used in GCC.  */
 643 #undef ANSI_PROTOTYPES
 644 #undef PTR_CONST
 645 #undef LONG_DOUBLE
 646 #undef VPARAMS
 647 #undef VA_OPEN
 648 #undef VA_FIXEDARG
 649 #undef VA_CLOSE
 650 #undef VA_START
 651  #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
 652   VA_FIXEDARG VA_CLOSE VA_START
 653 #endif /* IN_GCC */
 654
 655 /* Note: not all uses of the `index' token (e.g. variable names and
 656    structure members) have been eliminated.  */
 657 #undef bcopy
 658 #undef bzero
 659 #undef bcmp
 660 #undef rindex
 661  #pragma GCC poison bcopy bzero bcmp rindex
 662
 663 #endif /* GCC >= 3.0 */
 664
 665 #endif /* ! GCC_SYSTEM_H */