1/* Get common system includes and various definitions and declarations based 2 on autoconf macros. 3 Copyright (C) 1998-2013 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 3, or (at your option) any later 10version. 11 12GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17You should have received a copy of the GNU General Public License 18along 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/* We must include stdarg.h before stdio.h. */ 26#include <stdarg.h> 27 28#ifndef va_copy 29# ifdef __va_copy 30# define va_copy(d,s) __va_copy((d),(s)) 31# else 32# define va_copy(d,s) ((d) = (s)) 33# endif 34#endif 35 36#ifdef HAVE_STDDEF_H 37# include <stddef.h> 38#endif 39 40#include <stdio.h> 41 42/* Define a generic NULL if one hasn't already been defined. */ 43#ifndef NULL 44#define NULL 0 45#endif 46 47/* Use the unlocked open routines from libiberty. */ 48 49/* Some of these are #define on some systems, e.g. on AIX to redirect 50 the names to 64bit capable functions for LARGE_FILES support. These 51 redefs are pointless here so we can override them. */ 52 53#undef fopen 54#undef freopen 55 56#define fopen(PATH,MODE) fopen_unlocked(PATH,MODE) 57#define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE) 58#define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM) 59 60/* The compiler is not a multi-threaded application and therefore we 61 do not have to use the locking functions. In fact, using the locking 62 functions can cause the compiler to be significantly slower under 63 I/O bound conditions (such as -g -O0 on very large source files). 64 65 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio 66 code is multi-thread safe by default. If it is set to 0, then do 67 not worry about using the _unlocked functions. 68 69 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are 70 extensions and need to be prototyped by hand (since we do not 71 define _GNU_SOURCE). */ 72 73#if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED 74 75# ifdef HAVE_PUTC_UNLOCKED 76# undef putc 77# define putc(C, Stream) putc_unlocked (C, Stream) 78# endif 79# ifdef HAVE_PUTCHAR_UNLOCKED 80# undef putchar 81# define putchar(C) putchar_unlocked (C) 82# endif 83# ifdef HAVE_GETC_UNLOCKED 84# undef getc 85# define getc(Stream) getc_unlocked (Stream) 86# endif 87# ifdef HAVE_GETCHAR_UNLOCKED 88# undef getchar 89# define getchar() getchar_unlocked () 90# endif 91# ifdef HAVE_FPUTC_UNLOCKED 92# undef fputc 93# define fputc(C, Stream) fputc_unlocked (C, Stream) 94# endif 95 96#ifdef __cplusplus 97extern "C" { 98#endif 99 100# ifdef HAVE_CLEARERR_UNLOCKED 101# undef clearerr 102# define clearerr(Stream) clearerr_unlocked (Stream) 103# if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED 104extern void clearerr_unlocked (FILE *); 105# endif 106# endif 107# ifdef HAVE_FEOF_UNLOCKED 108# undef feof 109# define feof(Stream) feof_unlocked (Stream) 110# if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED 111extern int feof_unlocked (FILE *); 112# endif 113# endif 114# ifdef HAVE_FILENO_UNLOCKED 115# undef fileno 116# define fileno(Stream) fileno_unlocked (Stream) 117# if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED 118extern int fileno_unlocked (FILE *); 119# endif 120# endif 121# ifdef HAVE_FFLUSH_UNLOCKED 122# undef fflush 123# define fflush(Stream) fflush_unlocked (Stream) 124# if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED 125extern int fflush_unlocked (FILE *); 126# endif 127# endif 128# ifdef HAVE_FGETC_UNLOCKED 129# undef fgetc 130# define fgetc(Stream) fgetc_unlocked (Stream) 131# if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED 132extern int fgetc_unlocked (FILE *); 133# endif 134# endif 135# ifdef HAVE_FGETS_UNLOCKED 136# undef fgets 137# define fgets(S, n, Stream) fgets_unlocked (S, n, Stream) 138# if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED 139extern char *fgets_unlocked (char *, int, FILE *); 140# endif 141# endif 142# ifdef HAVE_FPUTS_UNLOCKED 143# undef fputs 144# define fputs(String, Stream) fputs_unlocked (String, Stream) 145# if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED 146extern int fputs_unlocked (const char *, FILE *); 147# endif 148# endif 149# ifdef HAVE_FERROR_UNLOCKED 150# undef ferror 151# define ferror(Stream) ferror_unlocked (Stream) 152# if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED 153extern int ferror_unlocked (FILE *); 154# endif 155# endif 156# ifdef HAVE_FREAD_UNLOCKED 157# undef fread 158# define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream) 159# if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED 160extern size_t fread_unlocked (void *, size_t, size_t, FILE *); 161# endif 162# endif 163# ifdef HAVE_FWRITE_UNLOCKED 164# undef fwrite 165# define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) 166# if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED 167extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *); 168# endif 169# endif 170# ifdef HAVE_FPRINTF_UNLOCKED 171# undef fprintf 172/* We can't use a function-like macro here because we don't know if 173 we have varargs macros. */ 174# define fprintf fprintf_unlocked 175# if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED 176extern int fprintf_unlocked (FILE *, const char *, ...); 177# endif 178# endif 179 180#ifdef __cplusplus 181} 182#endif 183 184#endif 185 186/* ??? Glibc's fwrite/fread_unlocked macros cause 187 "warning: signed and unsigned type in conditional expression". */ 188#undef fread_unlocked 189#undef fwrite_unlocked 190 191/* There are an extraordinary number of issues with <ctype.h>. 192 The last straw is that it varies with the locale. Use libiberty's 193 replacement instead. */ 194#include "safe-ctype.h" 195 196#include <sys/types.h> 197 198#include <errno.h> 199 200#if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO 201extern int errno; 202#endif 203 204#ifdef __cplusplus 205# include <cstring> 206#endif 207 208/* Some of glibc's string inlines cause warnings. Plus we'd rather 209 rely on (and therefore test) GCC's string builtins. */ 210#define __NO_STRING_INLINES 211 212#ifdef STRING_WITH_STRINGS 213# include <string.h> 214# include <strings.h> 215#else 216# ifdef HAVE_STRING_H 217# include <string.h> 218# else 219# ifdef HAVE_STRINGS_H 220# include <strings.h> 221# endif 222# endif 223#endif 224 225#ifdef HAVE_STDLIB_H 226# include <stdlib.h> 227#endif 228 229/* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */ 230#undef vec_free 231 232/* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and 233 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively, 234 or 0 and 1 if those macros are not defined. */ 235#ifndef SUCCESS_EXIT_CODE 236# ifdef EXIT_SUCCESS 237# define SUCCESS_EXIT_CODE EXIT_SUCCESS 238# else 239# define SUCCESS_EXIT_CODE 0 240# endif 241#endif 242 243#ifndef FATAL_EXIT_CODE 244# ifdef EXIT_FAILURE 245# define FATAL_EXIT_CODE EXIT_FAILURE 246# else 247# define FATAL_EXIT_CODE 1 248# endif 249#endif 250 251#define ICE_EXIT_CODE 4 252 253#ifdef HAVE_UNISTD_H 254# include <unistd.h> 255#endif 256 257#ifdef HAVE_SYS_PARAM_H 258# include <sys/param.h> 259/* We use this identifier later and it appears in some vendor param.h's. */ 260# undef PREFETCH 261#endif 262 263#if HAVE_LIMITS_H 264# include <limits.h> 265#endif 266 267/* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */ 268#include "hwint.h" 269 270/* A macro to determine whether a VALUE lies inclusively within a 271 certain range without evaluating the VALUE more than once. This 272 macro won't warn if the VALUE is unsigned and the LOWER bound is 273 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER 274 bound *is* evaluated twice, and LOWER must not be greater than 275 UPPER. However the bounds themselves can be either positive or 276 negative. */ 277#define IN_RANGE(VALUE, LOWER, UPPER) \ 278 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \ 279 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER)) 280 281/* Infrastructure for defining missing _MAX and _MIN macros. Note that 282 macros defined with these cannot be used in #if. */ 283 284/* The extra casts work around common compiler bugs. */ 285#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) 286/* The outer cast is needed to work around a bug in Cray C 5.0.3.0. 287 It is necessary at least when t == time_t. */ 288#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ 289 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0)) 290#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) 291 292/* Use that infrastructure to provide a few constants. */ 293#ifndef UCHAR_MAX 294# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) 295#endif 296 297#ifdef TIME_WITH_SYS_TIME 298# include <sys/time.h> 299# include <time.h> 300#else 301# if HAVE_SYS_TIME_H 302# include <sys/time.h> 303# else 304# ifdef HAVE_TIME_H 305# include <time.h> 306# endif 307# endif 308#endif 309 310#ifdef HAVE_FCNTL_H 311# include <fcntl.h> 312#else 313# ifdef HAVE_SYS_FILE_H 314# include <sys/file.h> 315# endif 316#endif 317 318#ifndef SEEK_SET 319# define SEEK_SET 0 320# define SEEK_CUR 1 321# define SEEK_END 2 322#endif 323#ifndef F_OK 324# define F_OK 0 325# define X_OK 1 326# define W_OK 2 327# define R_OK 4 328#endif 329#ifndef O_RDONLY 330# define O_RDONLY 0 331#endif 332#ifndef O_WRONLY 333# define O_WRONLY 1 334#endif 335#ifndef O_BINARY 336# define O_BINARY 0 337#endif 338 339/* Some systems define these in, e.g., param.h. We undefine these names 340 here to avoid the warnings. We prefer to use our definitions since we 341 know they are correct. */ 342 343#undef MIN 344#undef MAX 345#define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) 346#define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) 347 348/* Returns the least number N such that N * Y >= X. */ 349#define CEIL(x,y) (((x) + (y) - 1) / (y)) 350 351#ifdef HAVE_SYS_WAIT_H 352#include <sys/wait.h> 353#endif 354 355#ifndef WIFSIGNALED 356#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) 357#endif 358#ifndef WTERMSIG 359#define WTERMSIG(S) ((S) & 0x7f) 360#endif 361#ifndef WIFEXITED 362#define WIFEXITED(S) (((S) & 0xff) == 0) 363#endif 364#ifndef WEXITSTATUS 365#define WEXITSTATUS(S) (((S) & 0xff00) >> 8) 366#endif 367#ifndef WSTOPSIG 368#define WSTOPSIG WEXITSTATUS 369#endif 370#ifndef WCOREDUMP 371#define WCOREDUMP(S) ((S) & WCOREFLG) 372#endif 373#ifndef WCOREFLG 374#define WCOREFLG 0200 375#endif 376 377#include <signal.h> 378#if !defined (SIGCHLD) && defined (SIGCLD) 379# define SIGCHLD SIGCLD 380#endif 381 382#ifdef HAVE_SYS_MMAN_H 383# include <sys/mman.h> 384#endif 385 386#ifndef MAP_FAILED 387# define MAP_FAILED ((void *)-1) 388#endif 389 390#if !defined (MAP_ANONYMOUS) && defined (MAP_ANON) 391# define MAP_ANONYMOUS MAP_ANON 392#endif 393 394#ifdef HAVE_SYS_RESOURCE_H 395# include <sys/resource.h> 396#endif 397 398#ifdef HAVE_SYS_TIMES_H 399# include <sys/times.h> 400#endif 401 402/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they 403 are defined to 0 then we must provide the relevant declaration 404 here. These checks will be in the undefined state while configure 405 is running so be careful to test "defined (HAVE_DECL_*)". */ 406 407#ifdef __cplusplus 408extern "C" { 409#endif 410 411#if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF 412extern double atof (const char *); 413#endif 414 415#if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL 416extern long atol (const char *); 417#endif 418 419#if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE 420extern void free (void *); 421#endif 422 423#if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD 424extern char *getcwd (char *, size_t); 425#endif 426 427#if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV 428extern char *getenv (const char *); 429#endif 430 431#if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT 432extern int getopt (int, char * const *, const char *); 433#endif 434 435#if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE 436extern int getpagesize (void); 437#endif 438 439#if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD 440extern char *getwd (char *); 441#endif 442 443#if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK 444extern void *sbrk (int); 445#endif 446 447#if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR 448extern char *strstr (const char *, const char *); 449#endif 450 451#if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY 452extern char *stpcpy (char *, const char *); 453#endif 454 455#ifdef __cplusplus 456} 457#endif 458 459#ifdef HAVE_MALLOC_H 460#include <malloc.h> 461#endif 462 463#ifdef __cplusplus 464extern "C" { 465#endif 466 467#if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC 468extern void *malloc (size_t); 469#endif 470 471#if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC 472extern void *calloc (size_t, size_t); 473#endif 474 475#if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC 476extern void *realloc (void *, size_t); 477#endif 478 479#ifdef __cplusplus 480} 481#endif 482 483#ifdef HAVE_STDINT_H 484#include <stdint.h> 485#endif 486 487#ifdef HAVE_INTTYPES_H 488#include <inttypes.h> 489#endif 490 491#ifdef __cplusplus 492extern "C" { 493#endif 494 495/* If the system doesn't provide strsignal, we get it defined in 496 libiberty but no declaration is supplied. */ 497#if !defined (HAVE_STRSIGNAL) \ 498 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL) 499# ifndef strsignal 500extern const char *strsignal (int); 501# endif 502#endif 503 504#ifdef HAVE_GETRLIMIT 505# if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT 506# ifndef getrlimit 507struct rlimit; 508extern int getrlimit (int, struct rlimit *); 509# endif 510# endif 511#endif 512 513#ifdef HAVE_SETRLIMIT 514# if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT 515# ifndef setrlimit 516struct rlimit; 517extern int setrlimit (int, const struct rlimit *); 518# endif 519# endif 520#endif 521 522#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT 523extern void abort (void); 524#endif 525 526#if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF 527extern int snprintf (char *, size_t, const char *, ...); 528#endif 529 530#if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF 531extern int vsnprintf(char *, size_t, const char *, va_list); 532#endif 533 534#ifdef __cplusplus 535} 536#endif 537 538/* 1 if we have C99 designated initializers. */ 539#if !defined(HAVE_DESIGNATED_INITIALIZERS) 540#define HAVE_DESIGNATED_INITIALIZERS \ 541 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \ 542 && !defined(__cplusplus)) 543#endif 544 545#if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS) 546#define HAVE_DESIGNATED_UNION_INITIALIZERS \ 547 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \ 548 && (!defined(__cplusplus) || (GCC_VERSION >= 4007))) 549#endif 550 551#if HAVE_SYS_STAT_H 552# include <sys/stat.h> 553#endif 554 555/* Test if something is a normal file. */ 556#ifndef S_ISREG 557#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) 558#endif 559 560/* Test if something is a directory. */ 561#ifndef S_ISDIR 562#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) 563#endif 564 565/* Test if something is a character special file. */ 566#ifndef S_ISCHR 567#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) 568#endif 569 570/* Test if something is a block special file. */ 571#ifndef S_ISBLK 572#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) 573#endif 574 575/* Test if something is a socket. */ 576#ifndef S_ISSOCK 577# ifdef S_IFSOCK 578# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) 579# else 580# define S_ISSOCK(m) 0 581# endif 582#endif 583 584/* Test if something is a FIFO. */ 585#ifndef S_ISFIFO 586# ifdef S_IFIFO 587# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) 588# else 589# define S_ISFIFO(m) 0 590# endif 591#endif 592 593/* Define well known filenos if the system does not define them. */ 594#ifndef STDIN_FILENO 595# define STDIN_FILENO 0 596#endif 597#ifndef STDOUT_FILENO 598# define STDOUT_FILENO 1 599#endif 600#ifndef STDERR_FILENO 601# define STDERR_FILENO 2 602#endif 603 604/* Some systems have mkdir that takes a single argument. */ 605#ifdef MKDIR_TAKES_ONE_ARG 606# define mkdir(a,b) mkdir(a) 607#endif 608 609#ifndef HAVE_KILL 610# define kill(p,s) raise(s) 611#endif 612 613/* Provide a way to print an address via printf. */ 614#ifndef HOST_PTR_PRINTF 615#define HOST_PTR_PRINTF "%p" 616#endif /* ! HOST_PTR_PRINTF */ 617 618/* By default, colon separates directories in a path. */ 619#ifndef PATH_SEPARATOR 620#define PATH_SEPARATOR ':' 621#endif 622 623/* Filename handling macros. */ 624#include "filenames.h" 625 626/* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ 627#ifndef DIR_SEPARATOR 628# define DIR_SEPARATOR '/' 629# ifdef HAVE_DOS_BASED_FILE_SYSTEM 630# define DIR_SEPARATOR_2 '\\' 631# endif 632#endif 633 634#if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H) 635/* If plugin support is enabled, we could use libdl. */ 636#include <dlfcn.h> 637#endif 638 639/* Do not introduce a gmp.h dependency on the build system. */ 640#ifndef GENERATOR_FILE 641#include <gmp.h> 642#endif 643 644/* Get libiberty declarations. */ 645#include "libiberty.h" 646 647#undef FFS /* Some systems predefine this symbol; don't let it interfere. */ 648#undef FLOAT /* Likewise. */ 649#undef ABS /* Likewise. */ 650#undef PC /* Likewise. */ 651 652/* Provide a default for the HOST_BIT_BUCKET. 653 This suffices for POSIX-like hosts. */ 654 655#ifndef HOST_BIT_BUCKET 656#define HOST_BIT_BUCKET "/dev/null" 657#endif 658 659#ifndef offsetof 660#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) 661#endif 662 663/* Various error reporting routines want to use __FUNCTION__. */ 664#if (GCC_VERSION < 2007) 665#ifndef __FUNCTION__ 666#define __FUNCTION__ "?" 667#endif /* ! __FUNCTION__ */ 668#endif 669 670/* __builtin_expect(A, B) evaluates to A, but notifies the compiler that 671 the most likely value of A is B. This feature was added at some point 672 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ 673#if (GCC_VERSION < 3000) 674#define __builtin_expect(a, b) (a) 675#endif 676 677/* Redefine abort to report an internal error w/o coredump, and 678 reporting the location of the error in the source file. */ 679extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; 680#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) 681 682/* Use gcc_assert(EXPR) to test invariants. */ 683#if ENABLE_ASSERT_CHECKING 684#define gcc_assert(EXPR) \ 685 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) 686#elif (GCC_VERSION >= 4005) 687#define gcc_assert(EXPR) \ 688 ((void)(__builtin_expect(!(EXPR), 0) ? __builtin_unreachable(), 0 : 0)) 689#else 690/* Include EXPR, so that unused variable warnings do not occur. */ 691#define gcc_assert(EXPR) ((void)(0 && (EXPR))) 692#endif 693 694#ifdef ENABLE_CHECKING 695#define gcc_checking_assert(EXPR) gcc_assert (EXPR) 696#else 697#define gcc_checking_assert(EXPR) ((void)(0 && (EXPR))) 698#endif 699 700/* Use gcc_unreachable() to mark unreachable locations (like an 701 unreachable default case of a switch. Do not use gcc_assert(0). */ 702#if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING 703#define gcc_unreachable() __builtin_unreachable() 704#else 705#define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) 706#endif 707 708/* Provide a fake boolean type. We make no attempt to use the 709 C99 _Bool, as it may not be available in the bootstrap compiler, 710 and even if it is, it is liable to be buggy. 711 This must be after all inclusion of system headers, as some of 712 them will mess us up. */ 713 714#undef TRUE 715#undef FALSE 716 717#ifdef __cplusplus 718 /* Obsolete. */ 719# define TRUE true 720# define FALSE false 721#else /* !__cplusplus */ 722# undef bool 723# undef true 724# undef false 725 726# define bool unsigned char 727# define true 1 728# define false 0 729 730 /* Obsolete. */ 731# define TRUE true 732# define FALSE false 733#endif /* !__cplusplus */ 734 735/* Some compilers do not allow the use of unsigned char in bitfields. */ 736#define BOOL_BITFIELD unsigned int 737 738/* As the last action in this file, we poison the identifiers that 739 shouldn't be used. Note, luckily gcc-3.0's token-based integrated 740 preprocessor won't trip on poisoned identifiers that arrive from 741 the expansion of macros. E.g. #define strrchr rindex, won't error 742 if rindex is poisoned after this directive is issued and later on 743 strrchr is called. 744 745 Note: We define bypass macros for the few cases where we really 746 want to use the libc memory allocation routines. Otherwise we 747 insist you use the "x" versions from libiberty. */ 748 749#define really_call_malloc malloc 750#define really_call_calloc calloc 751#define really_call_realloc realloc 752 753#if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC) 754/* Flex and bison use malloc and realloc. Yuk. Note that this means 755 really_call_* cannot be used in a .l or .y file. */ 756#define malloc xmalloc 757#define realloc xrealloc 758#endif 759 760#if (GCC_VERSION >= 3000) 761 762/* Note autoconf checks for prototype declarations and includes 763 system.h while doing so. Only poison these tokens if actually 764 compiling gcc, so that the autoconf declaration tests for malloc 765 etc don't spuriously fail. */ 766#ifdef IN_GCC 767#undef calloc 768#undef strdup 769 #pragma GCC poison calloc strdup 770 771#if !defined(FLEX_SCANNER) && !defined(YYBISON) 772#undef malloc 773#undef realloc 774 #pragma GCC poison malloc realloc 775#endif 776 777/* The %m format should be used when GCC's main diagnostic functions 778 supporting %m are available, and xstrerror from libiberty 779 otherwise. */ 780#undef strerror 781 #pragma GCC poison strerror 782 783/* loc_t is defined on some systems and too inviting for some 784 programmers to avoid. */ 785#undef loc_t 786 #pragma GCC poison loc_t 787 788/* Old target macros that have moved to the target hooks structure. */ 789 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ 790 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ 791 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \ 792 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \ 793 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \ 794 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \ 795 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \ 796 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \ 797 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \ 798 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \ 799 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \ 800 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \ 801 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \ 802 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \ 803 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \ 804 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \ 805 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \ 806 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \ 807 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \ 808 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ 809 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ 810 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ 811 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \ 812 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \ 813 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \ 814 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \ 815 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \ 816 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \ 817 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \ 818 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \ 819 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \ 820 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \ 821 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \ 822 LABEL_ALIGN_MAX_SKIP LOOP_ALIGN_MAX_SKIP \ 823 LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP JUMP_ALIGN_MAX_SKIP \ 824 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \ 825 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \ 826 OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \ 827 ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK 828 829/* Target macros only used for code built for the target, that have 830 moved to libgcc-tm.h or have never been present elsewhere. */ 831 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \ 832 MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \ 833 REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT 834 835/* Other obsolete target macros, or macros that used to be in target 836 headers and were not used, and may be obsolete or may never have 837 been used. */ 838 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \ 839 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \ 840 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ 841 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ 842 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ 843 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ 844 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \ 845 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \ 846 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \ 847 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \ 848 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \ 849 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \ 850 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \ 851 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \ 852 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \ 853 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \ 854 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \ 855 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \ 856 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \ 857 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \ 858 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \ 859 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \ 860 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \ 861 PROMOTED_MODE EXPAND_BUILTIN_VA_END \ 862 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \ 863 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \ 864 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \ 865 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \ 866 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \ 867 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \ 868 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \ 869 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \ 870 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \ 871 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \ 872 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \ 873 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \ 874 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \ 875 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \ 876 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \ 877 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \ 878 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \ 879 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \ 880 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \ 881 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \ 882 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \ 883 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \ 884 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \ 885 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \ 886 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \ 887 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \ 888 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \ 889 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \ 890 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \ 891 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \ 892 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \ 893 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \ 894 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \ 895 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \ 896 SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \ 897 PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \ 898 STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \ 899 LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \ 900 IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES DBX_OUTPUT_LBRAC \ 901 DBX_OUTPUT_NFUN DBX_OUTPUT_RBRAC RANGE_TEST_NON_SHORT_CIRCUIT \ 902 REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \ 903 TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \ 904 IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \ 905 UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \ 906 USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \ 907 CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \ 908 GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \ 909 ELIGIBLE_FOR_EPILOGUE_DELAY 910 911/* Hooks that are no longer used. */ 912 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ 913 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \ 914 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \ 915 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \ 916 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \ 917 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \ 918 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \ 919 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \ 920 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \ 921 TARGET_IRA_COVER_CLASSES TARGET_HELP \ 922 TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \ 923 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \ 924 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \ 925 926/* Arrays that were deleted in favor of a functional interface. */ 927 #pragma GCC poison built_in_decls implicit_built_in_decls 928 929/* Hooks into libgcc2. */ 930 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \ 931 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN 932 933/* Miscellaneous macros that are no longer used. */ 934 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT 935 936/* Libiberty macros that are no longer used in GCC. */ 937#undef ANSI_PROTOTYPES 938#undef PTR_CONST 939#undef LONG_DOUBLE 940#undef VPARAMS 941#undef VA_OPEN 942#undef VA_FIXEDARG 943#undef VA_CLOSE 944#undef VA_START 945 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ 946 VA_FIXEDARG VA_CLOSE VA_START 947#endif /* IN_GCC */ 948 949/* Front ends should never have to include middle-end headers. Enforce 950 this by poisoning the header double-include protection defines. */ 951#ifdef IN_GCC_FRONTEND 952#pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H 953#endif 954 955/* Note: not all uses of the `index' token (e.g. variable names and 956 structure members) have been eliminated. */ 957#undef bcopy 958#undef bzero 959#undef bcmp 960#undef rindex 961 #pragma GCC poison bcopy bzero bcmp rindex 962 963#endif /* GCC >= 3.0 */ 964 965/* This macro allows casting away const-ness to pass -Wcast-qual 966 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should 967 only be used in certain specific cases. One valid case is where 968 the C standard definitions or prototypes force you to. E.g. if you 969 need to free a const object, or if you pass a const string to 970 execv, et al. Another valid use would be in an allocation function 971 that creates const objects that need to be initialized. In some 972 cases we have non-const functions that return the argument 973 (e.g. next_nonnote_insn). Rather than create const shadow 974 functions, we can cast away const-ness in calling these interfaces 975 if we're careful to verify that the called function does indeed not 976 modify its argument and the return value is only used in a const 977 context. (This can be somewhat dangerous as these assumptions can 978 change after the fact). Beyond these uses, most other cases of 979 using this macro should be viewed with extreme caution. */ 980 981#ifdef __cplusplus 982#define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X)) 983#else 984#if defined(__GNUC__) && GCC_VERSION > 4000 985/* GCC 4.0.x has a bug where it may ICE on this expression, 986 so does GCC 3.4.x (PR17436). */ 987#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq) 988#elif defined(__GNUC__) 989static inline char * 990helper_const_non_const_cast (const char *p) 991{ 992 union { 993 const char *const_c; 994 char *c; 995 } val; 996 val.const_c = p; 997 return val.c; 998} 999 1000#define CONST_CAST2(TOTYPE,FROMTYPE,X) \ 1001 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X))) 1002#else 1003#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X)) 1004#endif 1005#endif 1006#define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X)) 1007#define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X)) 1008#define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X)) 1009#define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X)) 1010#define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X)) 1011 1012/* Activate certain diagnostics as warnings (not errors via the 1013 -Werror flag). */ 1014#if GCC_VERSION >= 4003 1015/* If asserts are disabled, activate -Wuninitialized as a warning (not 1016 an error/-Werror). */ 1017#ifndef ENABLE_ASSERT_CHECKING 1018#pragma GCC diagnostic warning "-Wuninitialized" 1019#endif 1020#endif 1021 1022#ifdef ENABLE_VALGRIND_CHECKING 1023# ifdef HAVE_VALGRIND_MEMCHECK_H 1024# include <valgrind/memcheck.h> 1025# elif defined HAVE_MEMCHECK_H 1026# include <memcheck.h> 1027# else 1028# include <valgrind.h> 1029# endif 1030/* Compatibility macros to let valgrind 3.1 work. */ 1031# ifndef VALGRIND_MAKE_MEM_NOACCESS 1032# define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS 1033# endif 1034# ifndef VALGRIND_MAKE_MEM_DEFINED 1035# define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE 1036# endif 1037# ifndef VALGRIND_MAKE_MEM_UNDEFINED 1038# define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE 1039# endif 1040#else 1041/* Avoid #ifdef:s when we can help it. */ 1042#define VALGRIND_DISCARD(x) 1043#define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z) 1044#define VALGRIND_FREELIKE_BLOCK(x,y) 1045#endif 1046 1047/* In LTO -fwhole-program build we still want to keep the debug functions available 1048 for debugger. Mark them as used to prevent removal. */ 1049#if (GCC_VERSION > 4000) 1050#define DEBUG_FUNCTION __attribute__ ((__used__)) 1051#define DEBUG_VARIABLE __attribute__ ((__used__)) 1052#else 1053#define DEBUG_FUNCTION 1054#define DEBUG_VARIABLE 1055#endif 1056 1057#endif /* ! GCC_SYSTEM_H */ 1058