fixincludes/system.h

   1 /* Get common system includes and various definitions and declarations based
   2    on autoconf macros.
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009
   4    Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22
  23 #ifndef FIXINC_SYSTEM_H
  24 #define FIXINC_SYSTEM_H
  25
  26 /* We must include stdarg.h before stdio.h.  */
  27 #include <stdarg.h>
  28
  29 #ifdef HAVE_STDDEF_H
  30 # include <stddef.h>
  31 #endif
  32
  33 #include <stdio.h>
  34
  35 /* Define a generic NULL if one hasn't already been defined.  */
  36 #ifndef NULL
  37 #define NULL 0
  38 #endif
  39
  40 /* Use the unlocked open routines from libiberty.  */
  41 #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
  42 #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
  43 #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
  44
  45 /* fixincludes is not a multi-threaded application and therefore we
  46    do not have to use the locking functions.  In fact, using the locking
  47    functions can cause the compiler to be significantly slower under
  48    I/O bound conditions (such as -g -O0 on very large source files).
  49
  50    HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
  51    code is multi-thread safe by default.  If it is set to 0, then do
  52    not worry about using the _unlocked functions.
  53
  54    fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
  55    extensions and need to be prototyped by hand (since we do not
  56    define _GNU_SOURCE).  */
  57
  58 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
  59
  60 # ifdef HAVE_PUTC_UNLOCKED
  61 #  undef putc
  62 #  define putc(C, Stream) putc_unlocked (C, Stream)
  63 # endif
  64 # ifdef HAVE_PUTCHAR_UNLOCKED
  65 #  undef putchar
  66 #  define putchar(C) putchar_unlocked (C)
  67 # endif
  68 # ifdef HAVE_GETC_UNLOCKED
  69 #  undef getc
  70 #  define getc(Stream) getc_unlocked (Stream)
  71 # endif
  72 # ifdef HAVE_GETCHAR_UNLOCKED
  73 #  undef getchar
  74 #  define getchar() getchar_unlocked ()
  75 # endif
  76 # ifdef HAVE_FPUTC_UNLOCKED
  77 #  undef fputc
  78 #  define fputc(C, Stream) fputc_unlocked (C, Stream)
  79 # endif
  80
  81 # ifdef HAVE_CLEARERR_UNLOCKED
  82 #  undef clearerr
  83 #  define clearerr(Stream) clearerr_unlocked (Stream)
  84 #  if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
  85 extern void clearerr_unlocked (FILE *);
  86 #  endif
  87 # endif
  88 # ifdef HAVE_FEOF_UNLOCKED
  89 #  undef feof
  90 #  define feof(Stream) feof_unlocked (Stream)
  91 #  if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
  92 extern int feof_unlocked (FILE *);
  93 #  endif
  94 # endif
  95 # ifdef HAVE_FILENO_UNLOCKED
  96 #  undef fileno
  97 #  define fileno(Stream) fileno_unlocked (Stream)
  98 #  if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
  99 extern int fileno_unlocked (FILE *);
 100 #  endif
 101 # endif
 102 # ifdef HAVE_FFLUSH_UNLOCKED
 103 #  undef fflush
 104 #  define fflush(Stream) fflush_unlocked (Stream)
 105 #  if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
 106 extern int fflush_unlocked (FILE *);
 107 #  endif
 108 # endif
 109 # ifdef HAVE_FGETC_UNLOCKED
 110 #  undef fgetc
 111 #  define fgetc(Stream) fgetc_unlocked (Stream)
 112 #  if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
 113 extern int fgetc_unlocked (FILE *);
 114 #  endif
 115 # endif
 116 # ifdef HAVE_FGETS_UNLOCKED
 117 #  undef fgets
 118 #  define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
 119 #  if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
 120 extern char *fgets_unlocked (char *, int, FILE *);
 121 #  endif
 122 # endif
 123 # ifdef HAVE_FPUTS_UNLOCKED
 124 #  undef fputs
 125 #  define fputs(String, Stream) fputs_unlocked (String, Stream)
 126 #  if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
 127 extern int fputs_unlocked (const char *, FILE *);
 128 #  endif
 129 # endif
 130 # ifdef HAVE_FERROR_UNLOCKED
 131 #  undef ferror
 132 #  define ferror(Stream) ferror_unlocked (Stream)
 133 #  if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
 134 extern int ferror_unlocked (FILE *);
 135 #  endif
 136 # endif
 137 # ifdef HAVE_FREAD_UNLOCKED
 138 #  undef fread
 139 #  define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
 140 #  if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
 141 extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
 142 #  endif
 143 # endif
 144 # ifdef HAVE_FWRITE_UNLOCKED
 145 #  undef fwrite
 146 #  define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
 147 #  if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
 148 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
 149 #  endif
 150 # endif
 151 # ifdef HAVE_FPRINTF_UNLOCKED
 152 #  undef fprintf
 153 /* We can't use a function-like macro here because we don't know if
 154    we have varargs macros.  */
 155 #  define fprintf fprintf_unlocked
 156 #  if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
 157 extern int fprintf_unlocked (FILE *, const char *, ...);
 158 #  endif
 159 # endif
 160
 161 #endif
 162
 163 /* ??? Glibc's fwrite/fread_unlocked macros cause
 164    "warning: signed and unsigned type in conditional expression".  */
 165 #undef fread_unlocked
 166 #undef fwrite_unlocked
 167
 168 #include <sys/types.h>
 169 #include <errno.h>
 170
 171 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
 172 extern int errno;
 173 #endif
 174
 175 /* Some of glibc's string inlines cause warnings.  Plus we'd rather
 176    rely on (and therefore test) GCC's string builtins.  */
 177 #define __NO_STRING_INLINES
 178
 179 #ifdef HAVE_STRING_H
 180 # include <string.h>
 181 #else
 182 # ifdef HAVE_STRINGS_H
 183 #  include <strings.h>
 184 # endif
 185 #endif
 186
 187 #ifdef HAVE_STDLIB_H
 188 # include <stdlib.h>
 189 #endif
 190
 191 #ifdef HAVE_UNISTD_H
 192 # include <unistd.h>
 193 #endif
 194
 195 #ifdef HAVE_FCNTL_H
 196 # include <fcntl.h>
 197 #else
 198 # ifdef HAVE_SYS_FILE_H
 199 #  include <sys/file.h>
 200 # endif
 201 #endif
 202
 203 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1.  If they
 204    are defined to 0 then we must provide the relevant declaration
 205    here.  These checks will be in the undefined state while configure
 206    is running so be careful to test "defined (HAVE_DECL_*)".  */
 207
 208 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
 209 extern void abort (void);
 210 #endif
 211
 212 #if defined (HAVE_DECL_MEMMEM) && !HAVE_DECL_MEMMEM
 213 extern void *memmem (const void *, size_t, const void *, size_t);
 214 #endif
 215
 216 #if HAVE_SYS_STAT_H
 217 # include <sys/stat.h>
 218 #endif
 219
 220 /* Test if something is a normal file.  */
 221 #ifndef S_ISREG
 222 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 223 #endif
 224
 225 /* Filename handling macros.  */
 226 #include "filenames.h"
 227
 228 /* Get libiberty declarations.  */
 229 #include "libiberty.h"
 230 #include "safe-ctype.h"
 231
 232 #endif /* ! FIXINC_SYSTEM_H */