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 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 2, 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 COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22
  23 #ifndef GCC_SYSTEM_H
  24 #define GCC_SYSTEM_H
  25
  26 /* We must include stdarg.h/varargs.h before stdio.h.  */
  27 #ifdef ANSI_PROTOTYPES
  28 #include <stdarg.h>
  29 #else
  30 #include <varargs.h>
  31 #endif
  32
  33 #ifndef va_copy
  34 # ifdef __va_copy
  35 #   define va_copy(d,s)  __va_copy((d),(s))
  36 # else
  37 #   define va_copy(d,s)  ((d) = (s))
  38 # endif
  39 #endif
  40
  41 #ifdef HAVE_STDDEF_H
  42 # include <stddef.h>
  43 #endif
  44
  45 #include <stdio.h>
  46
  47 /* Define a generic NULL if one hasn't already been defined.  */
  48 #ifndef NULL
  49 #define NULL 0
  50 #endif
  51
  52 /* The compiler is not a multi-threaded application and therefore we
  53    do not have to use the locking functions.  In fact, using the locking
  54    functions can cause the compiler to be significantly slower under
  55    I/O bound conditions (such as -g -O0 on very large source files).
  56
  57    HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
  58    code is multi-thread safe by default.  If it is set to 0, then do
  59    not worry about using the _unlocked functions.
  60
  61    fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
  62    extensions and need to be prototyped by hand (since we do not
  63    define _GNU_SOURCE).  */
  64
  65 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
  66
  67 # ifdef HAVE_PUTC_UNLOCKED
  68 #  undef putc
  69 #  define putc(C, Stream) putc_unlocked (C, Stream)
  70 # endif
  71 # ifdef HAVE_FPUTC_UNLOCKED
  72 #  undef fputc
  73 #  define fputc(C, Stream) fputc_unlocked (C, Stream)
  74 # endif
  75
  76 # ifdef HAVE_FPUTS_UNLOCKED
  77 #  undef fputs
  78 #  define fputs(String, Stream) fputs_unlocked (String, Stream)
  79 #  if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
  80 extern int fputs_unlocked PARAMS ((const char *, FILE *));
  81 #  endif
  82 # endif
  83 # ifdef HAVE_FWRITE_UNLOCKED
  84 #  undef fwrite
  85 #  define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
  86 #  if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
  87 extern int fwrite_unlocked PARAMS ((const PTR, size_t, size_t, FILE *));
  88 #  endif
  89 # endif
  90 # ifdef HAVE_FPRINTF_UNLOCKED
  91 #  undef fprintf
  92 /* We can't use a function-like macro here because we don't know if
  93    we have varargs macros.  */
  94 #  define fprintf fprintf_unlocked
  95 #  if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
  96 extern int fprintf_unlocked PARAMS ((FILE *, const char *, ...));
  97 #  endif
  98 # endif
  99
 100 #endif
 101
 102 /* ??? Glibc's fwrite/fread_unlocked macros cause
 103    "warning: signed and unsigned type in conditional expression".  */
 104 #undef fread_unlocked
 105 #undef fwrite_unlocked
 106
 107 /* There are an extraordinary number of issues with <ctype.h>.
 108    The last straw is that it varies with the locale.  Use libiberty's
 109    replacement instead.  */
 110 #include <safe-ctype.h>
 111
 112 #include <sys/types.h>
 113
 114 #include <errno.h>
 115
 116 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
 117 extern int errno;
 118 #endif
 119
 120 /* Some of glibc's string inlines cause warnings.  Plus we'd rather
 121    rely on (and therefore test) GCC's string builtins.  */
 122 #define __NO_STRING_INLINES
 123
 124 #ifdef STRING_WITH_STRINGS
 125 # include <string.h>
 126 # include <strings.h>
 127 #else
 128 # ifdef HAVE_STRING_H
 129 #  include <string.h>
 130 # else
 131 #  ifdef HAVE_STRINGS_H
 132 #   include <strings.h>
 133 #  endif
 134 # endif
 135 #endif
 136
 137 #ifdef HAVE_STDLIB_H
 138 # include <stdlib.h>
 139 #endif
 140
 141 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
 142    FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
 143    or 0 and 1 if those macros are not defined.  */
 144 #ifndef SUCCESS_EXIT_CODE
 145 # ifdef EXIT_SUCCESS
 146 #  define SUCCESS_EXIT_CODE EXIT_SUCCESS
 147 # else
 148 #  define SUCCESS_EXIT_CODE 0
 149 # endif
 150 #endif
 151
 152 #ifndef FATAL_EXIT_CODE
 153 # ifdef EXIT_FAILURE
 154 #  define FATAL_EXIT_CODE EXIT_FAILURE
 155 # else
 156 #  define FATAL_EXIT_CODE 1
 157 # endif
 158 #endif
 159
 160 #ifdef HAVE_UNISTD_H
 161 # include <unistd.h>
 162 #endif
 163
 164 #ifdef HAVE_SYS_PARAM_H
 165 # include <sys/param.h>
 166 /* We use this identifier later and it appears in some vendor param.h's.  */
 167 # undef PREFETCH
 168 #endif
 169
 170 #if HAVE_LIMITS_H
 171 # include <limits.h>
 172 #endif
 173
 174 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT.  */
 175 #include "hwint.h"
 176
 177 /* A macro to determine whether a VALUE lies inclusively within a
 178    certain range without evaluating the VALUE more than once.  This
 179    macro won't warn if the VALUE is unsigned and the LOWER bound is
 180    zero, as it would e.g. with "VALUE >= 0 && ...".  Note the LOWER
 181    bound *is* evaluated twice, and LOWER must not be greater than
 182    UPPER.  However the bounds themselves can be either positive or
 183    negative.  */
 184 #define IN_RANGE(VALUE, LOWER, UPPER) \
 185   ((unsigned HOST_WIDE_INT) ((VALUE) - (LOWER)) <= ((UPPER) - (LOWER)))
 186
 187 /* Infrastructure for defining missing _MAX and _MIN macros.  Note that
 188    macros defined with these cannot be used in #if.  */
 189
 190 /* The extra casts work around common compiler bugs.  */
 191 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
 192 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
 193    It is necessary at least when t == time_t.  */
 194 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
 195                              ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
 196 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
 197
 198 /* Use that infrastructure to provide a few constants.  */
 199 #ifndef UCHAR_MAX
 200 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
 201 #endif
 202
 203 #ifdef TIME_WITH_SYS_TIME
 204 # include <sys/time.h>
 205 # include <time.h>
 206 #else
 207 # if HAVE_SYS_TIME_H
 208 #  include <sys/time.h>
 209 # else
 210 #  ifdef HAVE_TIME_H
 211 #   include <time.h>
 212 #  endif
 213 # endif
 214 #endif
 215
 216 #ifdef HAVE_FCNTL_H
 217 # include <fcntl.h>
 218 #else
 219 # ifdef HAVE_SYS_FILE_H
 220 #  include <sys/file.h>
 221 # endif
 222 #endif
 223
 224 #ifndef SEEK_SET
 225 # define SEEK_SET 0
 226 # define SEEK_CUR 1
 227 # define SEEK_END 2
 228 #endif
 229 #ifndef F_OK
 230 # define F_OK 0
 231 # define X_OK 1
 232 # define W_OK 2
 233 # define R_OK 4
 234 #endif
 235 #ifndef O_RDONLY
 236 # define O_RDONLY 0
 237 #endif
 238 #ifndef O_WRONLY
 239 # define O_WRONLY 1
 240 #endif
 241
 242 /* Some systems define these in, e.g., param.h.  We undefine these names
 243    here to avoid the warnings.  We prefer to use our definitions since we
 244    know they are correct.  */
 245
 246 #undef MIN
 247 #undef MAX
 248 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
 249 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
 250
 251 /* Returns the least number N such that N * Y >= X.  */
 252 #define CEIL(x,y) (((x) + (y) - 1) / (y))
 253
 254 #ifdef HAVE_SYS_WAIT_H
 255 #include <sys/wait.h>
 256 #endif
 257
 258 #ifndef WIFSIGNALED
 259 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
 260 #endif
 261 #ifndef WTERMSIG
 262 #define WTERMSIG(S) ((S) & 0x7f)
 263 #endif
 264 #ifndef WIFEXITED
 265 #define WIFEXITED(S) (((S) & 0xff) == 0)
 266 #endif
 267 #ifndef WEXITSTATUS
 268 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
 269 #endif
 270 #ifndef WSTOPSIG
 271 #define WSTOPSIG WEXITSTATUS
 272 #endif
 273
 274 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1.  If they
 275    are defined to 0 then we must provide the relevant declaration
 276    here.  These checks will be in the undefined state while configure
 277    is running so be careful to test "defined (HAVE_DECL_*)".  */
 278
 279 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
 280 extern double atof PARAMS ((const char *));
 281 #endif
 282
 283 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
 284 extern long atol PARAMS ((const char *));
 285 #endif
 286
 287 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
 288 extern void free PARAMS ((PTR));
 289 #endif
 290
 291 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
 292 extern char *getcwd PARAMS ((char *, size_t));
 293 #endif
 294
 295 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
 296 extern char *getenv PARAMS ((const char *));
 297 #endif
 298
 299 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
 300 extern int getopt PARAMS ((int, char * const *, const char *));
 301 #endif
 302
 303 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
 304 extern char *getwd PARAMS ((char *));
 305 #endif
 306
 307 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
 308 extern PTR sbrk PARAMS ((int));
 309 #endif
 310
 311 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
 312 extern char *strstr PARAMS ((const char *, const char *));
 313 #endif
 314
 315 #ifdef HAVE_MALLOC_H
 316 #include <malloc.h>
 317 #endif
 318
 319 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
 320 extern PTR malloc PARAMS ((size_t));
 321 #endif
 322
 323 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
 324 extern PTR calloc PARAMS ((size_t, size_t));
 325 #endif
 326
 327 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
 328 extern PTR realloc PARAMS ((PTR, size_t));
 329 #endif
 330
 331 /* If the system doesn't provide strsignal, we get it defined in
 332    libiberty but no declaration is supplied.  */
 333 #if !defined (HAVE_STRSIGNAL) \
 334     || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
 335 # ifndef strsignal
 336 extern const char *strsignal PARAMS ((int));
 337 # endif
 338 #endif
 339
 340 #ifdef HAVE_GETRLIMIT
 341 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
 342 #  ifndef getrlimit
 343 #   ifdef ANSI_PROTOTYPES
 344 struct rlimit;
 345 #   endif
 346 extern int getrlimit PARAMS ((int, struct rlimit *));
 347 #  endif
 348 # endif
 349 #endif
 350
 351 #ifdef HAVE_SETRLIMIT
 352 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
 353 #  ifndef setrlimit
 354 #   ifdef ANSI_PROTOTYPES
 355 struct rlimit;
 356 #   endif
 357 extern int setrlimit PARAMS ((int, const struct rlimit *));
 358 #  endif
 359 # endif
 360 #endif
 361
 362 /* HAVE_VOLATILE only refers to the stage1 compiler.  We also check
 363    __STDC__ and assume gcc sets it and has volatile in stage >=2.  */
 364 #if !defined(HAVE_VOLATILE) && !defined(__STDC__) && !defined(volatile)
 365 #define volatile
 366 #endif
 367
 368 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
 369 extern void abort PARAMS ((void));
 370 #endif
 371
 372 /* 1 if we have C99 designated initializers.  */
 373 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
 374 #define HAVE_DESIGNATED_INITIALIZERS \
 375   ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
 376 #endif
 377
 378 /* 1 if we have _Bool.  */
 379 #ifndef HAVE__BOOL
 380 # define HAVE__BOOL \
 381    ((GCC_VERSION >= 3000) || (__STDC_VERSION__ >= 199901L))
 382 #endif
 383
 384
 385 #if HAVE_SYS_STAT_H
 386 # include <sys/stat.h>
 387 #endif
 388
 389 /* Test if something is a normal file.  */
 390 #ifndef S_ISREG
 391 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 392 #endif
 393
 394 /* Test if something is a directory.  */
 395 #ifndef S_ISDIR
 396 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 397 #endif
 398
 399 /* Test if something is a character special file.  */
 400 #ifndef S_ISCHR
 401 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
 402 #endif
 403
 404 /* Test if something is a block special file.  */
 405 #ifndef S_ISBLK
 406 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
 407 #endif
 408
 409 /* Test if something is a socket.  */
 410 #ifndef S_ISSOCK
 411 # ifdef S_IFSOCK
 412 #   define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
 413 # else
 414 #   define S_ISSOCK(m) 0
 415 # endif
 416 #endif
 417
 418 /* Test if something is a FIFO.  */
 419 #ifndef S_ISFIFO
 420 # ifdef S_IFIFO
 421 #  define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
 422 # else
 423 #  define S_ISFIFO(m) 0
 424 # endif
 425 #endif
 426
 427 /* Approximate O_NONBLOCK.  */
 428 #ifndef O_NONBLOCK
 429 #define O_NONBLOCK O_NDELAY
 430 #endif
 431
 432 /* Approximate O_NOCTTY.  */
 433 #ifndef O_NOCTTY
 434 #define O_NOCTTY 0
 435 #endif
 436
 437 /* Define well known filenos if the system does not define them.  */
 438 #ifndef STDIN_FILENO
 439 # define STDIN_FILENO   0
 440 #endif
 441 #ifndef STDOUT_FILENO
 442 # define STDOUT_FILENO  1
 443 #endif
 444 #ifndef STDERR_FILENO
 445 # define STDERR_FILENO  2
 446 #endif
 447
 448 /* Some systems have mkdir that takes a single argument.  */
 449 #ifdef MKDIR_TAKES_ONE_ARG
 450 # define mkdir(a,b) mkdir(a)
 451 #endif
 452
 453 /* Provide a way to print an address via printf.  */
 454 #ifndef HOST_PTR_PRINTF
 455 # ifdef HAVE_PRINTF_PTR
 456 #  define HOST_PTR_PRINTF "%p"
 457 # else
 458 #  define HOST_PTR_PRINTF \
 459     (sizeof (int) == sizeof (char *) ? "%x" \
 460      : sizeof (long) == sizeof (char *) ? "%lx" : "%llx")
 461 # endif
 462 #endif /* ! HOST_PTR_PRINTF */
 463
 464 /* By default, colon separates directories in a path.  */
 465 #ifndef PATH_SEPARATOR
 466 #define PATH_SEPARATOR ':'
 467 #endif
 468
 469 #ifndef DIR_SEPARATOR
 470 #define DIR_SEPARATOR '/'
 471 #endif
 472
 473 /* Define IS_DIR_SEPARATOR.  */
 474 #ifndef DIR_SEPARATOR_2
 475 # define IS_DIR_SEPARATOR(CH) ((CH) == DIR_SEPARATOR)
 476 #else /* DIR_SEPARATOR_2 */
 477 # define IS_DIR_SEPARATOR(CH) \
 478         (((CH) == DIR_SEPARATOR) || ((CH) == DIR_SEPARATOR_2))
 479 #endif /* DIR_SEPARATOR_2 */
 480
 481 /* Say how to test for an absolute pathname.  On Unix systems, this is if
 482    it starts with a leading slash or a '$', the latter meaning the value of
 483    an environment variable is to be used.  On machine with DOS-based
 484    file systems, it is also absolute if it starts with a drive identifier.  */
 485 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
 486 #define IS_ABSOLUTE_PATHNAME(STR) \
 487   (IS_DIR_SEPARATOR ((STR)[0]) || (STR)[0] == '$' \
 488    || ((STR)[0] != '\0' && (STR)[1] == ':' && IS_DIR_SEPARATOR ((STR)[2])))
 489 #else
 490 #define IS_ABSOLUTE_PATHNAME(STR) \
 491   (IS_DIR_SEPARATOR ((STR)[0]) || (STR)[0] == '$')
 492 #endif
 493
 494 /* Get libiberty declarations.  */
 495 #include "libiberty.h"
 496 #include "symcat.h"
 497
 498 /* Provide a default for the HOST_BIT_BUCKET.
 499    This suffices for POSIX-like hosts.  */
 500
 501 #ifndef HOST_BIT_BUCKET
 502 #define HOST_BIT_BUCKET "/dev/null"
 503 #endif
 504
 505 /* Be conservative and only use enum bitfields with GCC.
 506    FIXME: provide a complete autoconf test for buggy enum bitfields.  */
 507
 508 #if (GCC_VERSION > 2000)
 509 #define ENUM_BITFIELD(TYPE) enum TYPE
 510 #else
 511 #define ENUM_BITFIELD(TYPE) unsigned int
 512 #endif
 513
 514 #ifndef offsetof
 515 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 516 #endif
 517
 518 /* Traditional C cannot initialize union members of structs.  Provide
 519    a macro which expands appropriately to handle it.  This only works
 520    if you intend to initialize the union member to zero since it relies
 521    on default initialization to zero in the traditional C case.  */
 522 #ifdef __STDC__
 523 #define UNION_INIT_ZERO , {0}
 524 #else
 525 #define UNION_INIT_ZERO
 526 #endif
 527
 528 /* Various error reporting routines want to use __FUNCTION__.  */
 529 #if (GCC_VERSION < 2007)
 530 #ifndef __FUNCTION__
 531 #define __FUNCTION__ "?"
 532 #endif /* ! __FUNCTION__ */
 533 #endif
 534
 535 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
 536    the most likely value of A is B.  This feature was added at some point
 537    between 2.95 and 3.0.  Let's use 3.0 as the lower bound for now.  */
 538 #if (GCC_VERSION < 3000)
 539 #define __builtin_expect(a, b) (a)
 540 #endif
 541
 542 /* Provide some sort of boolean type.  We use stdbool.h if it's
 543   available.  This must be after all inclusion of system headers,
 544   as some of them will mess us up.  */
 545 #undef bool
 546 #undef true
 547 #undef false
 548 #undef TRUE
 549 #undef FALSE
 550
 551 #ifdef HAVE_STDBOOL_H
 552 # include <stdbool.h>
 553 #else
 554 # if !HAVE__BOOL
 555 typedef char _Bool;
 556 # endif
 557 # define bool _Bool
 558 # define true 1
 559 # define false 0
 560 #endif
 561
 562 #define TRUE true
 563 #define FALSE false
 564
 565 /* As the last action in this file, we poison the identifiers that
 566    shouldn't be used.  Note, luckily gcc-3.0's token-based integrated
 567    preprocessor won't trip on poisoned identifiers that arrive from
 568    the expansion of macros.  E.g. #define strrchr rindex, won't error
 569    if rindex is poisoned after this directive is issued and later on
 570    strrchr is called.
 571
 572    Note: We define bypass macros for the few cases where we really
 573    want to use the libc memory allocation routines.  Otherwise we
 574    insist you use the "x" versions from libiberty.  */
 575
 576 #define really_call_malloc malloc
 577 #define really_call_calloc calloc
 578 #define really_call_realloc realloc
 579
 580 #if defined(FLEX_SCANNER) || defined(YYBISON)
 581 /* Flex and bison use malloc and realloc.  Yuk.  Note that this means
 582    really_call_* cannot be used in a .l or .y file.  */
 583 #define malloc xmalloc
 584 #define realloc xrealloc
 585 #endif
 586
 587 #if (GCC_VERSION >= 3000)
 588
 589 /* Note autoconf checks for prototype declarations and includes
 590    system.h while doing so.  Only poison these tokens if actually
 591    compiling gcc, so that the autoconf declaration tests for malloc
 592    etc don't spuriously fail.  */
 593 #ifdef IN_GCC
 594 #undef calloc
 595 #undef strdup
 596  #pragma GCC poison calloc strdup
 597
 598 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
 599 #undef malloc
 600 #undef realloc
 601  #pragma GCC poison malloc realloc
 602 #endif
 603
 604 /* Old target macros that have moved to the target hooks structure.  */
 605  #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN                      \
 606         FUNCTION_PROLOGUE FUNCTION_EPILOGUE                             \
 607         FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE                   \
 608         DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES  \
 609         VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE       \
 610         SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES         \
 611         MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES     \
 612         MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR       \
 613         ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE       \
 614         WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
 615         ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL     \
 616         ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS
 617
 618 /* Other obsolete target macros, or macros that used to be in target
 619    headers and were not used, and may be obsolete or may never have
 620    been used.  */
 621  #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG                    \
 622         ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT                \
 623         DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
 624         OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR                      \
 625         LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC      \
 626         STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE          \
 627         SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH   \
 628         TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE                      \
 629         NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
 630         BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER         \
 631         FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE                    \
 632         MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP                \
 633         ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL ASM_OUTPUT_INTERNAL_LABEL
 634
 635 /* Hooks that are no longer used.  */
 636  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE   \
 637         LANG_HOOKS_MARK_TREE
 638
 639 #endif /* IN_GCC */
 640
 641 /* Note: not all uses of the `index' token (e.g. variable names and
 642    structure members) have been eliminated.  */
 643 #undef bcopy
 644 #undef bzero
 645 #undef bcmp
 646 #undef rindex
 647  #pragma GCC poison bcopy bzero bcmp rindex
 648
 649 #endif /* GCC >= 3.0 */
 650
 651 #endif /* ! GCC_SYSTEM_H */