190075Sobrien/* Get common system includes and various definitions and declarations based 290075Sobrien on autoconf macros. 3169689Skan Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 4132718Skan Free Software Foundation, Inc. 550397Sobrien 690075SobrienThis file is part of GCC. 750397Sobrien 890075SobrienGCC is free software; you can redistribute it and/or modify it under 990075Sobrienthe terms of the GNU General Public License as published by the Free 1090075SobrienSoftware Foundation; either version 2, or (at your option) any later 1190075Sobrienversion. 1252284Sobrien 1390075SobrienGCC is distributed in the hope that it will be useful, but WITHOUT ANY 1490075SobrienWARRANTY; without even the implied warranty of MERCHANTABILITY or 1590075SobrienFITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1690075Sobrienfor more details. 1752284Sobrien 1852284SobrienYou should have received a copy of the GNU General Public License 1990075Sobrienalong with GCC; see the file COPYING. If not, write to the Free 20169689SkanSoftware Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 21169689Skan02110-1301, USA. */ 2252284Sobrien 2350397Sobrien 2490075Sobrien#ifndef GCC_SYSTEM_H 2590075Sobrien#define GCC_SYSTEM_H 2690075Sobrien 27132718Skan/* We must include stdarg.h before stdio.h. */ 2852284Sobrien#include <stdarg.h> 2952284Sobrien 3090075Sobrien#ifndef va_copy 3190075Sobrien# ifdef __va_copy 3290075Sobrien# define va_copy(d,s) __va_copy((d),(s)) 3390075Sobrien# else 3490075Sobrien# define va_copy(d,s) ((d) = (s)) 3590075Sobrien# endif 3690075Sobrien#endif 3790075Sobrien 3890075Sobrien#ifdef HAVE_STDDEF_H 3990075Sobrien# include <stddef.h> 4090075Sobrien#endif 4190075Sobrien 4250397Sobrien#include <stdio.h> 4350397Sobrien 4450397Sobrien/* Define a generic NULL if one hasn't already been defined. */ 4550397Sobrien#ifndef NULL 4650397Sobrien#define NULL 0 4750397Sobrien#endif 4850397Sobrien 49169689Skan/* Use the unlocked open routines from libiberty. */ 50169689Skan#define fopen(PATH,MODE) fopen_unlocked(PATH,MODE) 51169689Skan#define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE) 52169689Skan#define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM) 53169689Skan 5452284Sobrien/* The compiler is not a multi-threaded application and therefore we 5590075Sobrien do not have to use the locking functions. In fact, using the locking 5690075Sobrien functions can cause the compiler to be significantly slower under 5790075Sobrien I/O bound conditions (such as -g -O0 on very large source files). 5852284Sobrien 5990075Sobrien HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio 6090075Sobrien code is multi-thread safe by default. If it is set to 0, then do 6190075Sobrien not worry about using the _unlocked functions. 62132718Skan 6390075Sobrien fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are 6490075Sobrien extensions and need to be prototyped by hand (since we do not 6590075Sobrien define _GNU_SOURCE). */ 6652284Sobrien 6790075Sobrien#if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED 6890075Sobrien 6990075Sobrien# ifdef HAVE_PUTC_UNLOCKED 7090075Sobrien# undef putc 7190075Sobrien# define putc(C, Stream) putc_unlocked (C, Stream) 7252284Sobrien# endif 73169689Skan# ifdef HAVE_PUTCHAR_UNLOCKED 74169689Skan# undef putchar 75169689Skan# define putchar(C) putchar_unlocked (C) 76169689Skan# endif 77169689Skan# ifdef HAVE_GETC_UNLOCKED 78169689Skan# undef getc 79169689Skan# define getc(Stream) getc_unlocked (Stream) 80169689Skan# endif 81169689Skan# ifdef HAVE_GETCHAR_UNLOCKED 82169689Skan# undef getchar 83169689Skan# define getchar() getchar_unlocked () 84169689Skan# endif 8590075Sobrien# ifdef HAVE_FPUTC_UNLOCKED 8690075Sobrien# undef fputc 8790075Sobrien# define fputc(C, Stream) fputc_unlocked (C, Stream) 8890075Sobrien# endif 8952284Sobrien 90169689Skan# ifdef HAVE_CLEARERR_UNLOCKED 91169689Skan# undef clearerr 92169689Skan# define clearerr(Stream) clearerr_unlocked (Stream) 93169689Skan# if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED 94169689Skanextern void clearerr_unlocked (FILE *); 95169689Skan# endif 96169689Skan# endif 97169689Skan# ifdef HAVE_FEOF_UNLOCKED 98169689Skan# undef feof 99169689Skan# define feof(Stream) feof_unlocked (Stream) 100169689Skan# if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED 101169689Skanextern int feof_unlocked (FILE *); 102169689Skan# endif 103169689Skan# endif 104169689Skan# ifdef HAVE_FILENO_UNLOCKED 105169689Skan# undef fileno 106169689Skan# define fileno(Stream) fileno_unlocked (Stream) 107169689Skan# if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED 108169689Skanextern int fileno_unlocked (FILE *); 109169689Skan# endif 110169689Skan# endif 111169689Skan# ifdef HAVE_FFLUSH_UNLOCKED 112169689Skan# undef fflush 113169689Skan# define fflush(Stream) fflush_unlocked (Stream) 114169689Skan# if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED 115169689Skanextern int fflush_unlocked (FILE *); 116169689Skan# endif 117169689Skan# endif 118169689Skan# ifdef HAVE_FGETC_UNLOCKED 119169689Skan# undef fgetc 120169689Skan# define fgetc(Stream) fgetc_unlocked (Stream) 121169689Skan# if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED 122169689Skanextern int fgetc_unlocked (FILE *); 123169689Skan# endif 124169689Skan# endif 125169689Skan# ifdef HAVE_FGETS_UNLOCKED 126169689Skan# undef fgets 127169689Skan# define fgets(S, n, Stream) fgets_unlocked (S, n, Stream) 128169689Skan# if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED 129169689Skanextern char *fgets_unlocked (char *, int, FILE *); 130169689Skan# endif 131169689Skan# endif 13290075Sobrien# ifdef HAVE_FPUTS_UNLOCKED 13390075Sobrien# undef fputs 13490075Sobrien# define fputs(String, Stream) fputs_unlocked (String, Stream) 13590075Sobrien# if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED 136132718Skanextern int fputs_unlocked (const char *, FILE *); 13790075Sobrien# endif 13890075Sobrien# endif 139169689Skan# ifdef HAVE_FERROR_UNLOCKED 140169689Skan# undef ferror 141169689Skan# define ferror(Stream) ferror_unlocked (Stream) 142169689Skan# if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED 143169689Skanextern int ferror_unlocked (FILE *); 144169689Skan# endif 145169689Skan# endif 146169689Skan# ifdef HAVE_FREAD_UNLOCKED 147169689Skan# undef fread 148169689Skan# define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream) 149169689Skan# if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED 150169689Skanextern size_t fread_unlocked (void *, size_t, size_t, FILE *); 151169689Skan# endif 152169689Skan# endif 15390075Sobrien# ifdef HAVE_FWRITE_UNLOCKED 15490075Sobrien# undef fwrite 15590075Sobrien# define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) 15690075Sobrien# if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED 157169689Skanextern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *); 15890075Sobrien# endif 15990075Sobrien# endif 16090075Sobrien# ifdef HAVE_FPRINTF_UNLOCKED 16190075Sobrien# undef fprintf 16290075Sobrien/* We can't use a function-like macro here because we don't know if 16390075Sobrien we have varargs macros. */ 16490075Sobrien# define fprintf fprintf_unlocked 16590075Sobrien# if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED 166132718Skanextern int fprintf_unlocked (FILE *, const char *, ...); 16790075Sobrien# endif 16890075Sobrien# endif 16950397Sobrien 17050397Sobrien#endif 17150397Sobrien 172132718Skan/* ??? Glibc's fwrite/fread_unlocked macros cause 173132718Skan "warning: signed and unsigned type in conditional expression". */ 174132718Skan#undef fread_unlocked 175132718Skan#undef fwrite_unlocked 176132718Skan 17790075Sobrien/* There are an extraordinary number of issues with <ctype.h>. 17890075Sobrien The last straw is that it varies with the locale. Use libiberty's 17990075Sobrien replacement instead. */ 18090075Sobrien#include <safe-ctype.h> 18150397Sobrien 18290075Sobrien#include <sys/types.h> 18350397Sobrien 18450397Sobrien#include <errno.h> 18550397Sobrien 18690075Sobrien#if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO 18750397Sobrienextern int errno; 18850397Sobrien#endif 18950397Sobrien 190132718Skan/* Some of glibc's string inlines cause warnings. Plus we'd rather 191132718Skan rely on (and therefore test) GCC's string builtins. */ 192132718Skan#define __NO_STRING_INLINES 193132718Skan 19452284Sobrien#ifdef STRING_WITH_STRINGS 19550397Sobrien# include <string.h> 19652284Sobrien# include <strings.h> 19750397Sobrien#else 19852284Sobrien# ifdef HAVE_STRING_H 19952284Sobrien# include <string.h> 20052284Sobrien# else 20152284Sobrien# ifdef HAVE_STRINGS_H 20252284Sobrien# include <strings.h> 20352284Sobrien# endif 20450397Sobrien# endif 20550397Sobrien#endif 20650397Sobrien 20750397Sobrien#ifdef HAVE_STDLIB_H 20850397Sobrien# include <stdlib.h> 20950397Sobrien#endif 21050397Sobrien 21190075Sobrien/* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and 21290075Sobrien FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively, 21390075Sobrien or 0 and 1 if those macros are not defined. */ 21490075Sobrien#ifndef SUCCESS_EXIT_CODE 21590075Sobrien# ifdef EXIT_SUCCESS 21690075Sobrien# define SUCCESS_EXIT_CODE EXIT_SUCCESS 21790075Sobrien# else 21890075Sobrien# define SUCCESS_EXIT_CODE 0 21990075Sobrien# endif 22090075Sobrien#endif 22190075Sobrien 22290075Sobrien#ifndef FATAL_EXIT_CODE 22390075Sobrien# ifdef EXIT_FAILURE 22490075Sobrien# define FATAL_EXIT_CODE EXIT_FAILURE 22590075Sobrien# else 22690075Sobrien# define FATAL_EXIT_CODE 1 22790075Sobrien# endif 22890075Sobrien#endif 22990075Sobrien 230169689Skan#define ICE_EXIT_CODE 4 231169689Skan 23250397Sobrien#ifdef HAVE_UNISTD_H 23350397Sobrien# include <unistd.h> 23450397Sobrien#endif 23550397Sobrien 23650397Sobrien#ifdef HAVE_SYS_PARAM_H 23750397Sobrien# include <sys/param.h> 23890075Sobrien/* We use this identifier later and it appears in some vendor param.h's. */ 23990075Sobrien# undef PREFETCH 24050397Sobrien#endif 24150397Sobrien 24250397Sobrien#if HAVE_LIMITS_H 24350397Sobrien# include <limits.h> 24450397Sobrien#endif 24550397Sobrien 24690075Sobrien/* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */ 24790075Sobrien#include "hwint.h" 24852284Sobrien 24990075Sobrien/* A macro to determine whether a VALUE lies inclusively within a 25090075Sobrien certain range without evaluating the VALUE more than once. This 25190075Sobrien macro won't warn if the VALUE is unsigned and the LOWER bound is 25290075Sobrien zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER 25390075Sobrien bound *is* evaluated twice, and LOWER must not be greater than 25490075Sobrien UPPER. However the bounds themselves can be either positive or 25590075Sobrien negative. */ 25690075Sobrien#define IN_RANGE(VALUE, LOWER, UPPER) \ 257169689Skan ((unsigned HOST_WIDE_INT)((VALUE) - (LOWER)) <= ((UPPER) - (LOWER))) 25852284Sobrien 25990075Sobrien/* Infrastructure for defining missing _MAX and _MIN macros. Note that 26090075Sobrien macros defined with these cannot be used in #if. */ 26190075Sobrien 26290075Sobrien/* The extra casts work around common compiler bugs. */ 26390075Sobrien#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) 26490075Sobrien/* The outer cast is needed to work around a bug in Cray C 5.0.3.0. 26590075Sobrien It is necessary at least when t == time_t. */ 26690075Sobrien#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ 26790075Sobrien ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0)) 26890075Sobrien#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) 26990075Sobrien 27090075Sobrien/* Use that infrastructure to provide a few constants. */ 27190075Sobrien#ifndef UCHAR_MAX 27290075Sobrien# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) 27390075Sobrien#endif 27490075Sobrien 27550397Sobrien#ifdef TIME_WITH_SYS_TIME 27650397Sobrien# include <sys/time.h> 27750397Sobrien# include <time.h> 27850397Sobrien#else 27950397Sobrien# if HAVE_SYS_TIME_H 28050397Sobrien# include <sys/time.h> 28150397Sobrien# else 28250397Sobrien# ifdef HAVE_TIME_H 28350397Sobrien# include <time.h> 28450397Sobrien# endif 28550397Sobrien# endif 28650397Sobrien#endif 28750397Sobrien 28850397Sobrien#ifdef HAVE_FCNTL_H 28950397Sobrien# include <fcntl.h> 29050397Sobrien#else 29150397Sobrien# ifdef HAVE_SYS_FILE_H 29250397Sobrien# include <sys/file.h> 29350397Sobrien# endif 29450397Sobrien#endif 29550397Sobrien 29650397Sobrien#ifndef SEEK_SET 29750397Sobrien# define SEEK_SET 0 29850397Sobrien# define SEEK_CUR 1 29950397Sobrien# define SEEK_END 2 30050397Sobrien#endif 30150397Sobrien#ifndef F_OK 30250397Sobrien# define F_OK 0 30350397Sobrien# define X_OK 1 30450397Sobrien# define W_OK 2 30550397Sobrien# define R_OK 4 30650397Sobrien#endif 30750397Sobrien#ifndef O_RDONLY 30850397Sobrien# define O_RDONLY 0 30950397Sobrien#endif 31050397Sobrien#ifndef O_WRONLY 31150397Sobrien# define O_WRONLY 1 31250397Sobrien#endif 31350397Sobrien 31452284Sobrien/* Some systems define these in, e.g., param.h. We undefine these names 31552284Sobrien here to avoid the warnings. We prefer to use our definitions since we 31652284Sobrien know they are correct. */ 31750397Sobrien 31852284Sobrien#undef MIN 31952284Sobrien#undef MAX 32052284Sobrien#define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) 32152284Sobrien#define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) 32250397Sobrien 32390075Sobrien/* Returns the least number N such that N * Y >= X. */ 32490075Sobrien#define CEIL(x,y) (((x) + (y) - 1) / (y)) 32590075Sobrien 32652284Sobrien#ifdef HAVE_SYS_WAIT_H 32752284Sobrien#include <sys/wait.h> 32852284Sobrien#endif 32952284Sobrien 33052284Sobrien#ifndef WIFSIGNALED 33152284Sobrien#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) 33252284Sobrien#endif 33352284Sobrien#ifndef WTERMSIG 33452284Sobrien#define WTERMSIG(S) ((S) & 0x7f) 33552284Sobrien#endif 33652284Sobrien#ifndef WIFEXITED 33752284Sobrien#define WIFEXITED(S) (((S) & 0xff) == 0) 33852284Sobrien#endif 33952284Sobrien#ifndef WEXITSTATUS 34052284Sobrien#define WEXITSTATUS(S) (((S) & 0xff00) >> 8) 34152284Sobrien#endif 34252284Sobrien#ifndef WSTOPSIG 34352284Sobrien#define WSTOPSIG WEXITSTATUS 34452284Sobrien#endif 345117395Skan#ifndef WCOREDUMP 346117395Skan#define WCOREDUMP(S) ((S) & WCOREFLG) 347117395Skan#endif 348117395Skan#ifndef WCOREFLG 349117395Skan#define WCOREFLG 0200 350117395Skan#endif 35152284Sobrien 35290075Sobrien/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they 35390075Sobrien are defined to 0 then we must provide the relevant declaration 35490075Sobrien here. These checks will be in the undefined state while configure 35590075Sobrien is running so be careful to test "defined (HAVE_DECL_*)". */ 35652284Sobrien 35790075Sobrien#if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF 358132718Skanextern double atof (const char *); 35950397Sobrien#endif 36050397Sobrien 36190075Sobrien#if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL 362132718Skanextern long atol (const char *); 36350397Sobrien#endif 36450397Sobrien 36590075Sobrien#if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE 366132718Skanextern void free (void *); 36750397Sobrien#endif 36850397Sobrien 36990075Sobrien#if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD 370132718Skanextern char *getcwd (char *, size_t); 37150397Sobrien#endif 37250397Sobrien 37390075Sobrien#if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV 374132718Skanextern char *getenv (const char *); 37550397Sobrien#endif 37650397Sobrien 37790075Sobrien#if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT 378132718Skanextern int getopt (int, char * const *, const char *); 37950397Sobrien#endif 38050397Sobrien 381169689Skan#if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE 382169689Skanextern int getpagesize (void); 383169689Skan#endif 384169689Skan 38590075Sobrien#if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD 386132718Skanextern char *getwd (char *); 38750397Sobrien#endif 38850397Sobrien 38990075Sobrien#if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK 390132718Skanextern void *sbrk (int); 39150397Sobrien#endif 39250397Sobrien 39390075Sobrien#if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR 394132718Skanextern char *strstr (const char *, const char *); 39550397Sobrien#endif 39650397Sobrien 39790075Sobrien#ifdef HAVE_MALLOC_H 39890075Sobrien#include <malloc.h> 39950397Sobrien#endif 40050397Sobrien 40190075Sobrien#if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC 402132718Skanextern void *malloc (size_t); 40350397Sobrien#endif 40450397Sobrien 40590075Sobrien#if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC 406132718Skanextern void *calloc (size_t, size_t); 40750397Sobrien#endif 40850397Sobrien 40990075Sobrien#if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC 410132718Skanextern void *realloc (void *, size_t); 41152284Sobrien#endif 41252284Sobrien 41390075Sobrien/* If the system doesn't provide strsignal, we get it defined in 41490075Sobrien libiberty but no declaration is supplied. */ 415132718Skan#if !defined (HAVE_STRSIGNAL) \ 416132718Skan || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL) 41790075Sobrien# ifndef strsignal 418132718Skanextern const char *strsignal (int); 41950397Sobrien# endif 42090075Sobrien#endif 42150397Sobrien 42250397Sobrien#ifdef HAVE_GETRLIMIT 42390075Sobrien# if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT 42450397Sobrien# ifndef getrlimit 42590075Sobrienstruct rlimit; 426132718Skanextern int getrlimit (int, struct rlimit *); 42750397Sobrien# endif 42850397Sobrien# endif 42950397Sobrien#endif 43050397Sobrien 43150397Sobrien#ifdef HAVE_SETRLIMIT 43290075Sobrien# if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT 43350397Sobrien# ifndef setrlimit 43490075Sobrienstruct rlimit; 435132718Skanextern int setrlimit (int, const struct rlimit *); 43650397Sobrien# endif 43750397Sobrien# endif 43850397Sobrien#endif 43950397Sobrien 440132718Skan#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT 441132718Skanextern void abort (void); 44250397Sobrien#endif 44350397Sobrien 444132718Skan#if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF 445132718Skanextern int snprintf (char *, size_t, const char *, ...); 44652284Sobrien#endif 44750397Sobrien 448169689Skan#if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF 449169689Skanextern int vsnprintf(char *, size_t, const char *, va_list); 450169689Skan#endif 451169689Skan 45290075Sobrien/* 1 if we have C99 designated initializers. */ 45390075Sobrien#if !defined(HAVE_DESIGNATED_INITIALIZERS) 45490075Sobrien#define HAVE_DESIGNATED_INITIALIZERS \ 45590075Sobrien ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) 45690075Sobrien#endif 45750397Sobrien 45852284Sobrien#if HAVE_SYS_STAT_H 45952284Sobrien# include <sys/stat.h> 46052284Sobrien#endif 46150397Sobrien 46252284Sobrien/* Test if something is a normal file. */ 46352284Sobrien#ifndef S_ISREG 46452284Sobrien#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) 46552284Sobrien#endif 46650397Sobrien 46752284Sobrien/* Test if something is a directory. */ 46852284Sobrien#ifndef S_ISDIR 46952284Sobrien#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) 47052284Sobrien#endif 47152284Sobrien 47252284Sobrien/* Test if something is a character special file. */ 47352284Sobrien#ifndef S_ISCHR 47452284Sobrien#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) 47552284Sobrien#endif 47652284Sobrien 47790075Sobrien/* Test if something is a block special file. */ 47890075Sobrien#ifndef S_ISBLK 47990075Sobrien#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) 48090075Sobrien#endif 48190075Sobrien 48252284Sobrien/* Test if something is a socket. */ 48352284Sobrien#ifndef S_ISSOCK 48452284Sobrien# ifdef S_IFSOCK 48552284Sobrien# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) 48652284Sobrien# else 48752284Sobrien# define S_ISSOCK(m) 0 48852284Sobrien# endif 48952284Sobrien#endif 49052284Sobrien 49152284Sobrien/* Test if something is a FIFO. */ 49252284Sobrien#ifndef S_ISFIFO 49352284Sobrien# ifdef S_IFIFO 49452284Sobrien# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) 49552284Sobrien# else 49652284Sobrien# define S_ISFIFO(m) 0 49752284Sobrien# endif 49852284Sobrien#endif 49952284Sobrien 50052284Sobrien/* Define well known filenos if the system does not define them. */ 50152284Sobrien#ifndef STDIN_FILENO 50252284Sobrien# define STDIN_FILENO 0 50352284Sobrien#endif 50452284Sobrien#ifndef STDOUT_FILENO 50552284Sobrien# define STDOUT_FILENO 1 50652284Sobrien#endif 50752284Sobrien#ifndef STDERR_FILENO 50852284Sobrien# define STDERR_FILENO 2 50952284Sobrien#endif 51052284Sobrien 51190075Sobrien/* Some systems have mkdir that takes a single argument. */ 51252284Sobrien#ifdef MKDIR_TAKES_ONE_ARG 51352284Sobrien# define mkdir(a,b) mkdir(a) 51452284Sobrien#endif 51552284Sobrien 51690075Sobrien/* By default, colon separates directories in a path. */ 51790075Sobrien#ifndef PATH_SEPARATOR 51890075Sobrien#define PATH_SEPARATOR ':' 51990075Sobrien#endif 52090075Sobrien 521132718Skan/* Filename handling macros. */ 522132718Skan#include "filenames.h" 523132718Skan 524132718Skan/* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ 52590075Sobrien#ifndef DIR_SEPARATOR 526132718Skan# define DIR_SEPARATOR '/' 527132718Skan# ifdef HAVE_DOS_BASED_FILE_SYSTEM 528132718Skan# define DIR_SEPARATOR_2 '\\' 529132718Skan# endif 53090075Sobrien#endif 53190075Sobrien 53290075Sobrien/* Get libiberty declarations. */ 53352284Sobrien#include "libiberty.h" 53452284Sobrien 53590075Sobrien/* Provide a default for the HOST_BIT_BUCKET. 53690075Sobrien This suffices for POSIX-like hosts. */ 53790075Sobrien 53890075Sobrien#ifndef HOST_BIT_BUCKET 53990075Sobrien#define HOST_BIT_BUCKET "/dev/null" 54090075Sobrien#endif 54190075Sobrien 54290075Sobrien/* Be conservative and only use enum bitfields with GCC. 54390075Sobrien FIXME: provide a complete autoconf test for buggy enum bitfields. */ 54490075Sobrien 54590075Sobrien#if (GCC_VERSION > 2000) 546132718Skan#define ENUM_BITFIELD(TYPE) __extension__ enum TYPE 54790075Sobrien#else 54890075Sobrien#define ENUM_BITFIELD(TYPE) unsigned int 54990075Sobrien#endif 55090075Sobrien 55190075Sobrien#ifndef offsetof 55290075Sobrien#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) 55390075Sobrien#endif 55490075Sobrien 55590075Sobrien/* Various error reporting routines want to use __FUNCTION__. */ 55690075Sobrien#if (GCC_VERSION < 2007) 55790075Sobrien#ifndef __FUNCTION__ 55890075Sobrien#define __FUNCTION__ "?" 55990075Sobrien#endif /* ! __FUNCTION__ */ 56090075Sobrien#endif 56190075Sobrien 56290075Sobrien/* __builtin_expect(A, B) evaluates to A, but notifies the compiler that 56390075Sobrien the most likely value of A is B. This feature was added at some point 56490075Sobrien between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ 56590075Sobrien#if (GCC_VERSION < 3000) 56690075Sobrien#define __builtin_expect(a, b) (a) 56790075Sobrien#endif 56890075Sobrien 569169689Skan/* Redefine abort to report an internal error w/o coredump, and 570169689Skan reporting the location of the error in the source file. */ 571169689Skanextern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; 572169689Skan#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) 573169689Skan 574169689Skan/* Use gcc_assert(EXPR) to test invariants. */ 575169689Skan#if ENABLE_ASSERT_CHECKING 576169689Skan#define gcc_assert(EXPR) \ 577169689Skan ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) 578169689Skan#else 579169689Skan/* Include EXPR, so that unused variable warnings do not occur. */ 580169689Skan#define gcc_assert(EXPR) ((void)(0 && (EXPR))) 581169689Skan#endif 582169689Skan 583169689Skan/* Use gcc_unreachable() to mark unreachable locations (like an 584169689Skan unreachable default case of a switch. Do not use gcc_assert(0). */ 585169689Skan#define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) 586169689Skan 587169689Skan/* Provide a fake boolean type. We make no attempt to use the 588169689Skan C99 _Bool, as it may not be available in the bootstrap compiler, 589169689Skan and even if it is, it is liable to be buggy. 590169689Skan This must be after all inclusion of system headers, as some of 591169689Skan them will mess us up. */ 592169689Skan 59390075Sobrien#undef TRUE 59490075Sobrien#undef FALSE 59590075Sobrien 596169689Skan#ifdef __cplusplus 597169689Skan /* Obsolete. */ 598169689Skan# define TRUE true 599169689Skan# define FALSE false 600169689Skan#else /* !__cplusplus */ 601169689Skan# undef bool 602169689Skan# undef true 603169689Skan# undef false 604169689Skan 605169689Skan# define bool unsigned char 60690075Sobrien# define true 1 60790075Sobrien# define false 0 60890075Sobrien 609169689Skan /* Obsolete. */ 610169689Skan# define TRUE true 611169689Skan# define FALSE false 612169689Skan#endif /* !__cplusplus */ 61390075Sobrien 614169689Skan/* Get definition of double_int. */ 615169689Skan#include "double-int.h" 616169689Skan 617169689Skan/* Some compilers do not allow the use of unsigned char in bitfields. */ 618169689Skan#define BOOL_BITFIELD unsigned int 619169689Skan 62090075Sobrien/* As the last action in this file, we poison the identifiers that 62190075Sobrien shouldn't be used. Note, luckily gcc-3.0's token-based integrated 62290075Sobrien preprocessor won't trip on poisoned identifiers that arrive from 62390075Sobrien the expansion of macros. E.g. #define strrchr rindex, won't error 62490075Sobrien if rindex is poisoned after this directive is issued and later on 62590075Sobrien strrchr is called. 62690075Sobrien 62790075Sobrien Note: We define bypass macros for the few cases where we really 62890075Sobrien want to use the libc memory allocation routines. Otherwise we 62990075Sobrien insist you use the "x" versions from libiberty. */ 63090075Sobrien 63190075Sobrien#define really_call_malloc malloc 63290075Sobrien#define really_call_calloc calloc 63390075Sobrien#define really_call_realloc realloc 63490075Sobrien 635132718Skan#if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC) 636132718Skan/* Flex and bison use malloc and realloc. Yuk. Note that this means 637132718Skan really_call_* cannot be used in a .l or .y file. */ 638132718Skan#define malloc xmalloc 639132718Skan#define realloc xrealloc 640132718Skan#endif 641132718Skan 64290075Sobrien#if (GCC_VERSION >= 3000) 64390075Sobrien 64490075Sobrien/* Note autoconf checks for prototype declarations and includes 64590075Sobrien system.h while doing so. Only poison these tokens if actually 64690075Sobrien compiling gcc, so that the autoconf declaration tests for malloc 64790075Sobrien etc don't spuriously fail. */ 64890075Sobrien#ifdef IN_GCC 64990075Sobrien#undef calloc 65090075Sobrien#undef strdup 651117395Skan #pragma GCC poison calloc strdup 65290075Sobrien 653132718Skan#if !defined(FLEX_SCANNER) && !defined(YYBISON) 654117395Skan#undef malloc 655117395Skan#undef realloc 656117395Skan #pragma GCC poison malloc realloc 657117395Skan#endif 658117395Skan 65990075Sobrien/* Old target macros that have moved to the target hooks structure. */ 66090075Sobrien #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ 66190075Sobrien FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ 66290075Sobrien FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \ 66390075Sobrien DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \ 66490075Sobrien VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \ 66590075Sobrien SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \ 66690075Sobrien MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \ 66790075Sobrien MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \ 668117395Skan ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \ 669117395Skan WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \ 670117395Skan ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \ 671132718Skan ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \ 672132718Skan ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \ 673132718Skan ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \ 674132718Skan INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \ 675132718Skan DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \ 676132718Skan MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \ 677132718Skan PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \ 678169689Skan ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS \ 679169689Skan STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ 680169689Skan PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ 681169689Skan SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ 682169689Skan DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \ 683169689Skan HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \ 684169689Skan MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \ 685169689Skan VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \ 686169689Skan FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \ 687169689Skan ALLOCATE_INITIAL_VALUE 68890075Sobrien 689117395Skan/* Other obsolete target macros, or macros that used to be in target 69090075Sobrien headers and were not used, and may be obsolete or may never have 69190075Sobrien been used. */ 692132718Skan #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \ 693132718Skan ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \ 69490075Sobrien DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ 69590075Sobrien OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ 69690075Sobrien LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ 69790075Sobrien STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ 698102780Skan SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \ 699117395Skan TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \ 700117395Skan NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \ 701117395Skan BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \ 702117395Skan FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \ 703169689Skan MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \ 704169689Skan ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \ 705132718Skan OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \ 706132718Skan ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \ 707132718Skan DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \ 708132718Skan DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \ 709132718Skan INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \ 710132718Skan EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \ 711132718Skan LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \ 712132718Skan LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \ 713132718Skan CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \ 714132718Skan FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \ 715132718Skan PROMOTED_MODE EXPAND_BUILTIN_VA_END \ 716169689Skan LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \ 717169689Skan GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \ 718169689Skan MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \ 719169689Skan FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \ 720169689Skan TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \ 721169689Skan DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \ 722169689Skan SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \ 723169689Skan SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \ 724169689Skan DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \ 725169689Skan COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \ 726169689Skan ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \ 727169689Skan GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \ 728169689Skan PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \ 729169689Skan DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \ 730169689Skan NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \ 731169689Skan CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \ 732169689Skan TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \ 733169689Skan LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \ 734169689Skan TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \ 735169689Skan PREDICATE_CODES SPECIAL_MODE_PREDICATES HOST_PTR_PRINTF \ 736169689Skan EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \ 737169689Skan TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \ 738169689Skan SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \ 739169689Skan ASM_OUTPUT_SHARED_LOCAL UNALIGNED_WORD_ASM_OP 74090075Sobrien 741117395Skan/* Hooks that are no longer used. */ 742117395Skan #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ 743169689Skan LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \ 744169689Skan LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \ 745169689Skan LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \ 746169689Skan LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \ 747169689Skan LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION 748117395Skan 749132718Skan/* Libiberty macros that are no longer used in GCC. */ 750132718Skan#undef ANSI_PROTOTYPES 751132718Skan#undef PTR_CONST 752132718Skan#undef LONG_DOUBLE 753132718Skan#undef VPARAMS 754132718Skan#undef VA_OPEN 755132718Skan#undef VA_FIXEDARG 756132718Skan#undef VA_CLOSE 757132718Skan#undef VA_START 758132718Skan #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ 759132718Skan VA_FIXEDARG VA_CLOSE VA_START 76090075Sobrien#endif /* IN_GCC */ 76190075Sobrien 76290075Sobrien/* Note: not all uses of the `index' token (e.g. variable names and 76390075Sobrien structure members) have been eliminated. */ 76490075Sobrien#undef bcopy 76590075Sobrien#undef bzero 76690075Sobrien#undef bcmp 76790075Sobrien#undef rindex 76890075Sobrien #pragma GCC poison bcopy bzero bcmp rindex 76990075Sobrien 77090075Sobrien#endif /* GCC >= 3.0 */ 77190075Sobrien 77290075Sobrien#endif /* ! GCC_SYSTEM_H */ 773