system.h revision 90075
128328Ssos/* Get common system includes and various definitions and declarations based 2229784Suqs on autoconf macros. 328328Ssos Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. 428328Ssos 528328SsosThis file is part of GCC. 628328Ssos 728328SsosGCC is free software; you can redistribute it and/or modify it under 828328Ssosthe terms of the GNU General Public License as published by the Free 928328SsosSoftware Foundation; either version 2, or (at your option) any later 1028328Ssosversion. 1128328Ssos 1228328SsosGCC is distributed in the hope that it will be useful, but WITHOUT ANY 1328328SsosWARRANTY; without even the implied warranty of MERCHANTABILITY or 1428328SsosFITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1597748Sschweikhfor more details. 1628328Ssos 1728328SsosYou should have received a copy of the GNU General Public License 1828328Ssosalong with GCC; see the file COPYING. If not, write to the Free 1928328SsosSoftware Foundation, 59 Temple Place - Suite 330, Boston, MA 2028328Ssos02111-1307, USA. */ 2128328Ssos 2228328Ssos 2328328Ssos#ifndef GCC_SYSTEM_H 2428328Ssos#define GCC_SYSTEM_H 2528328Ssos 2628328Ssos/* This is the location of the online document giving information how 2728328Ssos to report bugs. If you change this string, also check for strings 2828328Ssos not under control of the preprocessor. */ 2983551Sdillon#define GCCBUGURL "<URL:http://www.gnu.org/software/gcc/bugs.html>" 3083551Sdillon 3183551Sdillon/* We must include stdarg.h/varargs.h before stdio.h. */ 3228328Ssos#ifdef ANSI_PROTOTYPES 3328328Ssos#include <stdarg.h> 3428328Ssos#else 3528328Ssos#include <varargs.h> 3666834Sphk#endif 3766834Sphk 3828328Ssos#ifndef va_copy 3928328Ssos# ifdef __va_copy 4028328Ssos# define va_copy(d,s) __va_copy((d),(s)) 4128328Ssos# else 4228328Ssos# define va_copy(d,s) ((d) = (s)) 4328328Ssos# endif 4428328Ssos#endif 4528328Ssos 4628328Ssos#ifdef HAVE_STDDEF_H 4728328Ssos# include <stddef.h> 4828328Ssos#endif 4928328Ssos 5028328Ssos#include <stdio.h> 5128328Ssos 5228328Ssos/* Define a generic NULL if one hasn't already been defined. */ 5328328Ssos#ifndef NULL 5428328Ssos#define NULL 0 5528328Ssos#endif 5628328Ssos 5728328Ssos/* The compiler is not a multi-threaded application and therefore we 5828328Ssos do not have to use the locking functions. In fact, using the locking 5928328Ssos functions can cause the compiler to be significantly slower under 6028328Ssos I/O bound conditions (such as -g -O0 on very large source files). 6128328Ssos 6228328Ssos HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio 6328328Ssos code is multi-thread safe by default. If it is set to 0, then do 6428328Ssos not worry about using the _unlocked functions. 6528328Ssos 6628328Ssos fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are 6728328Ssos extensions and need to be prototyped by hand (since we do not 6828328Ssos define _GNU_SOURCE). */ 6928328Ssos 7028328Ssos#if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED 7128328Ssos 7228328Ssos# ifdef HAVE_PUTC_UNLOCKED 7328328Ssos# undef putc 7428328Ssos# define putc(C, Stream) putc_unlocked (C, Stream) 7528328Ssos# endif 7628328Ssos# ifdef HAVE_FPUTC_UNLOCKED 7728328Ssos# undef fputc 7828328Ssos# define fputc(C, Stream) fputc_unlocked (C, Stream) 7953013Syokota# endif 8028328Ssos 8153013Syokota# ifdef HAVE_FPUTS_UNLOCKED 8228328Ssos# undef fputs 8328328Ssos# define fputs(String, Stream) fputs_unlocked (String, Stream) 8453013Syokota# if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED 8553013Syokotaextern int fputs_unlocked PARAMS ((const char *, FILE *)); 8628328Ssos# endif 8728328Ssos# endif 8828328Ssos# ifdef HAVE_FWRITE_UNLOCKED 8928328Ssos# undef fwrite 9028328Ssos# define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) 9128328Ssos# if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED 9228328Ssosextern int fwrite_unlocked PARAMS ((const PTR, size_t, size_t, FILE *)); 9328328Ssos# endif 9428328Ssos# endif 9528328Ssos# ifdef HAVE_FPRINTF_UNLOCKED 9628328Ssos# undef fprintf 9753013Syokota/* We can't use a function-like macro here because we don't know if 9853013Syokota we have varargs macros. */ 9928328Ssos# define fprintf fprintf_unlocked 10028328Ssos# if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED 10128328Ssosextern int fprintf_unlocked PARAMS ((FILE *, const char *, ...)); 10228328Ssos# endif 10328328Ssos# endif 10428328Ssos 10528328Ssos#endif 10628328Ssos 10728328Ssos/* There are an extraordinary number of issues with <ctype.h>. 10828328Ssos The last straw is that it varies with the locale. Use libiberty's 10928328Ssos replacement instead. */ 11028328Ssos#include <safe-ctype.h> 11128328Ssos 11228328Ssos#include <sys/types.h> 11328328Ssos 11428328Ssos#include <errno.h> 11528328Ssos 11628328Ssos#if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO 11728328Ssosextern int errno; 11828328Ssos#endif 11928328Ssos 12028328Ssos#ifdef STRING_WITH_STRINGS 12128328Ssos# include <string.h> 12228328Ssos# include <strings.h> 12328328Ssos#else 12428328Ssos# ifdef HAVE_STRING_H 12528328Ssos# include <string.h> 12628328Ssos# else 12728328Ssos# ifdef HAVE_STRINGS_H 12828328Ssos# include <strings.h> 12928328Ssos# endif 13028328Ssos# endif 13128328Ssos#endif 13228328Ssos 13328328Ssos#ifdef HAVE_STDLIB_H 13428328Ssos# include <stdlib.h> 13528328Ssos#endif 13628328Ssos 13728328Ssos/* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and 13828328Ssos FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively, 13928328Ssos or 0 and 1 if those macros are not defined. */ 14028328Ssos#ifndef SUCCESS_EXIT_CODE 14128328Ssos# ifdef EXIT_SUCCESS 14228328Ssos# define SUCCESS_EXIT_CODE EXIT_SUCCESS 14328328Ssos# else 14428328Ssos# define SUCCESS_EXIT_CODE 0 14528328Ssos# endif 14628328Ssos#endif 14728328Ssos 14828328Ssos#ifndef FATAL_EXIT_CODE 14928328Ssos# ifdef EXIT_FAILURE 15028328Ssos# define FATAL_EXIT_CODE EXIT_FAILURE 15128328Ssos# else 15228328Ssos# define FATAL_EXIT_CODE 1 15328328Ssos# endif 15428328Ssos#endif 15528328Ssos 15628328Ssos#ifdef HAVE_UNISTD_H 15728328Ssos# include <unistd.h> 15828328Ssos#endif 15928328Ssos 16028328Ssos#ifdef HAVE_SYS_PARAM_H 16128328Ssos# include <sys/param.h> 16228328Ssos/* We use this identifier later and it appears in some vendor param.h's. */ 16328328Ssos# undef PREFETCH 16428328Ssos#endif 16528328Ssos 16628328Ssos#if HAVE_LIMITS_H 16728328Ssos# include <limits.h> 16828328Ssos#endif 16928328Ssos 17028328Ssos/* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */ 17128328Ssos#include "hwint.h" 17228328Ssos 17328328Ssos/* A macro to determine whether a VALUE lies inclusively within a 17428328Ssos certain range without evaluating the VALUE more than once. This 17528328Ssos macro won't warn if the VALUE is unsigned and the LOWER bound is 17628328Ssos zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER 17728328Ssos bound *is* evaluated twice, and LOWER must not be greater than 17828328Ssos UPPER. However the bounds themselves can be either positive or 17928328Ssos negative. */ 18028328Ssos#define IN_RANGE(VALUE, LOWER, UPPER) \ 18128328Ssos ((unsigned HOST_WIDE_INT) ((VALUE) - (LOWER)) <= ((UPPER) - (LOWER))) 18228328Ssos 18328328Ssos/* Infrastructure for defining missing _MAX and _MIN macros. Note that 18428328Ssos macros defined with these cannot be used in #if. */ 18528328Ssos 18628328Ssos/* The extra casts work around common compiler bugs. */ 18728328Ssos#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) 18828328Ssos/* The outer cast is needed to work around a bug in Cray C 5.0.3.0. 18928328Ssos It is necessary at least when t == time_t. */ 19028328Ssos#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ 19128328Ssos ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0)) 19228328Ssos#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) 19328328Ssos 19428328Ssos/* Use that infrastructure to provide a few constants. */ 19528328Ssos#ifndef UCHAR_MAX 19628328Ssos# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) 19728328Ssos#endif 19828328Ssos 19928328Ssos#ifdef TIME_WITH_SYS_TIME 20028328Ssos# include <sys/time.h> 20128328Ssos# include <time.h> 20228328Ssos#else 20328328Ssos# if HAVE_SYS_TIME_H 20428328Ssos# include <sys/time.h> 20528328Ssos# else 20628328Ssos# ifdef HAVE_TIME_H 20728328Ssos# include <time.h> 20828328Ssos# endif 20928328Ssos# endif 21028328Ssos#endif 21128328Ssos 21228328Ssos#ifdef HAVE_FCNTL_H 21328328Ssos# include <fcntl.h> 21428328Ssos#else 21528328Ssos# ifdef HAVE_SYS_FILE_H 21628328Ssos# include <sys/file.h> 21728328Ssos# endif 21828328Ssos#endif 21928328Ssos 22028328Ssos#ifndef SEEK_SET 22128328Ssos# define SEEK_SET 0 22228328Ssos# define SEEK_CUR 1 22328328Ssos# define SEEK_END 2 22428328Ssos#endif 22528328Ssos#ifndef F_OK 22628328Ssos# define F_OK 0 22728328Ssos# define X_OK 1 22828328Ssos# define W_OK 2 22928328Ssos# define R_OK 4 23028328Ssos#endif 23128328Ssos#ifndef O_RDONLY 23228328Ssos# define O_RDONLY 0 23328328Ssos#endif 23428328Ssos#ifndef O_WRONLY 23528328Ssos# define O_WRONLY 1 23628328Ssos#endif 23728328Ssos 23828328Ssos/* Some systems define these in, e.g., param.h. We undefine these names 23928328Ssos here to avoid the warnings. We prefer to use our definitions since we 24028328Ssos know they are correct. */ 24128328Ssos 24228328Ssos#undef MIN 24328328Ssos#undef MAX 24428328Ssos#define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) 24528328Ssos#define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) 24628328Ssos 24728328Ssos/* Returns the least number N such that N * Y >= X. */ 24828328Ssos#define CEIL(x,y) (((x) + (y) - 1) / (y)) 24928328Ssos 25028328Ssos#ifdef HAVE_SYS_WAIT_H 25128328Ssos#include <sys/wait.h> 25228328Ssos#endif 25328328Ssos 25428328Ssos#ifndef WIFSIGNALED 25528328Ssos#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) 25628328Ssos#endif 25728328Ssos#ifndef WTERMSIG 25828328Ssos#define WTERMSIG(S) ((S) & 0x7f) 25928328Ssos#endif 26028328Ssos#ifndef WIFEXITED 26128328Ssos#define WIFEXITED(S) (((S) & 0xff) == 0) 26228328Ssos#endif 26328328Ssos#ifndef WEXITSTATUS 26428328Ssos#define WEXITSTATUS(S) (((S) & 0xff00) >> 8) 26528328Ssos#endif 26628328Ssos#ifndef WSTOPSIG 26728328Ssos#define WSTOPSIG WEXITSTATUS 26828328Ssos#endif 26928328Ssos 27028328Ssos/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they 27128328Ssos are defined to 0 then we must provide the relevant declaration 27228328Ssos here. These checks will be in the undefined state while configure 27328328Ssos is running so be careful to test "defined (HAVE_DECL_*)". */ 27428328Ssos 27528328Ssos#if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF 27628328Ssosextern double atof PARAMS ((const char *)); 27728328Ssos#endif 27828328Ssos 27928328Ssos#if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL 28028328Ssosextern long atol PARAMS ((const char *)); 28128328Ssos#endif 28228328Ssos 28328328Ssos#if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE 28428328Ssosextern void free PARAMS ((PTR)); 28528328Ssos#endif 286 287#if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD 288extern char *getcwd PARAMS ((char *, size_t)); 289#endif 290 291#if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV 292extern char *getenv PARAMS ((const char *)); 293#endif 294 295#if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT 296extern int getopt PARAMS ((int, char * const *, const char *)); 297#endif 298 299#if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD 300extern char *getwd PARAMS ((char *)); 301#endif 302 303#if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK 304extern PTR sbrk PARAMS ((int)); 305#endif 306 307#if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR 308extern char *strstr PARAMS ((const char *, const char *)); 309#endif 310 311#ifdef HAVE_MALLOC_H 312#include <malloc.h> 313#endif 314 315#if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC 316extern PTR malloc PARAMS ((size_t)); 317#endif 318 319#if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC 320extern PTR calloc PARAMS ((size_t, size_t)); 321#endif 322 323#if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC 324extern PTR realloc PARAMS ((PTR, size_t)); 325#endif 326 327/* If the system doesn't provide strsignal, we get it defined in 328 libiberty but no declaration is supplied. */ 329#ifndef HAVE_STRSIGNAL 330# ifndef strsignal 331extern const char *strsignal PARAMS ((int)); 332# endif 333#endif 334 335#ifdef HAVE_GETRLIMIT 336# if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT 337# ifndef getrlimit 338# ifdef ANSI_PROTOTYPES 339struct rlimit; 340# endif 341extern int getrlimit PARAMS ((int, struct rlimit *)); 342# endif 343# endif 344#endif 345 346#ifdef HAVE_SETRLIMIT 347# if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT 348# ifndef setrlimit 349# ifdef ANSI_PROTOTYPES 350struct rlimit; 351# endif 352extern int setrlimit PARAMS ((int, const struct rlimit *)); 353# endif 354# endif 355#endif 356 357/* HAVE_VOLATILE only refers to the stage1 compiler. We also check 358 __STDC__ and assume gcc sets it and has volatile in stage >=2. */ 359#if !defined(HAVE_VOLATILE) && !defined(__STDC__) && !defined(volatile) 360#define volatile 361#endif 362 363#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT 364extern void abort PARAMS ((void)); 365#endif 366 367/* 1 if we have C99 designated initializers. */ 368#if !defined(HAVE_DESIGNATED_INITIALIZERS) 369#define HAVE_DESIGNATED_INITIALIZERS \ 370 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) 371#endif 372 373/* 1 if we have _Bool. */ 374#ifndef HAVE__BOOL 375# define HAVE__BOOL \ 376 ((GCC_VERSION >= 3000) || (__STDC_VERSION__ >= 199901L)) 377#endif 378 379 380#if HAVE_SYS_STAT_H 381# include <sys/stat.h> 382#endif 383 384/* Test if something is a normal file. */ 385#ifndef S_ISREG 386#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) 387#endif 388 389/* Test if something is a directory. */ 390#ifndef S_ISDIR 391#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) 392#endif 393 394/* Test if something is a character special file. */ 395#ifndef S_ISCHR 396#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) 397#endif 398 399/* Test if something is a block special file. */ 400#ifndef S_ISBLK 401#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) 402#endif 403 404/* Test if something is a socket. */ 405#ifndef S_ISSOCK 406# ifdef S_IFSOCK 407# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) 408# else 409# define S_ISSOCK(m) 0 410# endif 411#endif 412 413/* Test if something is a FIFO. */ 414#ifndef S_ISFIFO 415# ifdef S_IFIFO 416# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) 417# else 418# define S_ISFIFO(m) 0 419# endif 420#endif 421 422/* Approximate O_NONBLOCK. */ 423#ifndef O_NONBLOCK 424#define O_NONBLOCK O_NDELAY 425#endif 426 427/* Approximate O_NOCTTY. */ 428#ifndef O_NOCTTY 429#define O_NOCTTY 0 430#endif 431 432/* Define well known filenos if the system does not define them. */ 433#ifndef STDIN_FILENO 434# define STDIN_FILENO 0 435#endif 436#ifndef STDOUT_FILENO 437# define STDOUT_FILENO 1 438#endif 439#ifndef STDERR_FILENO 440# define STDERR_FILENO 2 441#endif 442 443/* Some systems have mkdir that takes a single argument. */ 444#ifdef MKDIR_TAKES_ONE_ARG 445# define mkdir(a,b) mkdir(a) 446#endif 447 448/* Provide a way to print an address via printf. */ 449#ifndef HOST_PTR_PRINTF 450# ifdef HAVE_PRINTF_PTR 451# define HOST_PTR_PRINTF "%p" 452# else 453# define HOST_PTR_PRINTF \ 454 (sizeof (int) == sizeof (char *) ? "%x" \ 455 : sizeof (long) == sizeof (char *) ? "%lx" : "%llx") 456# endif 457#endif /* ! HOST_PTR_PRINTF */ 458 459/* By default, colon separates directories in a path. */ 460#ifndef PATH_SEPARATOR 461#define PATH_SEPARATOR ':' 462#endif 463 464#ifndef DIR_SEPARATOR 465#define DIR_SEPARATOR '/' 466#endif 467 468/* Define IS_DIR_SEPARATOR. */ 469#ifndef DIR_SEPARATOR_2 470# define IS_DIR_SEPARATOR(CH) ((CH) == DIR_SEPARATOR) 471#else /* DIR_SEPARATOR_2 */ 472# define IS_DIR_SEPARATOR(CH) \ 473 (((CH) == DIR_SEPARATOR) || ((CH) == DIR_SEPARATOR_2)) 474#endif /* DIR_SEPARATOR_2 */ 475 476/* Say how to test for an absolute pathname. On Unix systems, this is if 477 it starts with a leading slash or a '$', the latter meaning the value of 478 an environment variable is to be used. On machien with DOS-based 479 file systems, it is also absolute if it starts with a drive identifier. */ 480#ifdef HAVE_DOS_BASED_FILE_SYSTEM 481#define IS_ABSOLUTE_PATHNAME(STR) \ 482 (IS_DIR_SEPARATOR ((STR)[0]) || (STR)[0] == '$' \ 483 || ((STR)[0] != '\0' && (STR)[1] == ':' && IS_DIR_SEPARATOR ((STR)[2]))) 484#else 485#define IS_ABSOLUTE_PATHNAME(STR) \ 486 (IS_DIR_SEPARATOR ((STR)[0]) || (STR)[0] == '$') 487#endif 488 489/* Get libiberty declarations. */ 490#include "libiberty.h" 491#include "symcat.h" 492 493/* Provide a default for the HOST_BIT_BUCKET. 494 This suffices for POSIX-like hosts. */ 495 496#ifndef HOST_BIT_BUCKET 497#define HOST_BIT_BUCKET "/dev/null" 498#endif 499 500/* Be conservative and only use enum bitfields with GCC. 501 FIXME: provide a complete autoconf test for buggy enum bitfields. */ 502 503#if (GCC_VERSION > 2000) 504#define ENUM_BITFIELD(TYPE) enum TYPE 505#else 506#define ENUM_BITFIELD(TYPE) unsigned int 507#endif 508 509#ifndef offsetof 510#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) 511#endif 512 513/* Traditional C cannot initialize union members of structs. Provide 514 a macro which expands appropriately to handle it. This only works 515 if you intend to initialize the union member to zero since it relies 516 on default initialization to zero in the traditional C case. */ 517#ifdef __STDC__ 518#define UNION_INIT_ZERO , {0} 519#else 520#define UNION_INIT_ZERO 521#endif 522 523/* Various error reporting routines want to use __FUNCTION__. */ 524#if (GCC_VERSION < 2007) 525#ifndef __FUNCTION__ 526#define __FUNCTION__ "?" 527#endif /* ! __FUNCTION__ */ 528#endif 529 530/* __builtin_expect(A, B) evaluates to A, but notifies the compiler that 531 the most likely value of A is B. This feature was added at some point 532 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ 533#if (GCC_VERSION < 3000) 534#define __builtin_expect(a, b) (a) 535#endif 536 537/* Provide some sort of boolean type. We use stdbool.h if it's 538 available. This must be after all inclusion of system headers, 539 as some of them will mess us up. */ 540#undef bool 541#undef true 542#undef false 543#undef TRUE 544#undef FALSE 545 546#ifdef HAVE_STDBOOL_H 547# include <stdbool.h> 548#else 549# if !HAVE__BOOL 550typedef char _Bool; 551# endif 552# define bool _Bool 553# define true 1 554# define false 0 555#endif 556 557#define TRUE true 558#define FALSE false 559 560/* As the last action in this file, we poison the identifiers that 561 shouldn't be used. Note, luckily gcc-3.0's token-based integrated 562 preprocessor won't trip on poisoned identifiers that arrive from 563 the expansion of macros. E.g. #define strrchr rindex, won't error 564 if rindex is poisoned after this directive is issued and later on 565 strrchr is called. 566 567 Note: We define bypass macros for the few cases where we really 568 want to use the libc memory allocation routines. Otherwise we 569 insist you use the "x" versions from libiberty. */ 570 571#define really_call_malloc malloc 572#define really_call_calloc calloc 573#define really_call_realloc realloc 574 575#if (GCC_VERSION >= 3000) 576 577/* Note autoconf checks for prototype declarations and includes 578 system.h while doing so. Only poison these tokens if actually 579 compiling gcc, so that the autoconf declaration tests for malloc 580 etc don't spuriously fail. */ 581#ifdef IN_GCC 582#undef malloc 583#undef realloc 584#undef calloc 585#undef strdup 586 #pragma GCC poison malloc realloc calloc strdup 587 588/* Old target macros that have moved to the target hooks structure. */ 589 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ 590 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ 591 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \ 592 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \ 593 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \ 594 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \ 595 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \ 596 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \ 597 ASM_OUTPUT_DESTRUCTOR 598 599/* And other obsolete target macros, or macros that used to be in target 600 headers and were not used, and may be obsolete or may never have 601 been used. */ 602 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG \ 603 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT \ 604 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ 605 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ 606 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ 607 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ 608 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET 609 610#endif /* IN_GCC */ 611 612/* Note: not all uses of the `index' token (e.g. variable names and 613 structure members) have been eliminated. */ 614#undef bcopy 615#undef bzero 616#undef bcmp 617#undef rindex 618 #pragma GCC poison bcopy bzero bcmp rindex 619 620#endif /* GCC >= 3.0 */ 621 622#endif /* ! GCC_SYSTEM_H */ 623