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
   4    Free Software Foundation, Inc.
   5
   6 This file is part of libcpp (aka cpplib).
   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 2, 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 COPYING.  If not, write to the Free
  20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21 02111-1307, USA.  */
  22
  23
  24 #ifndef FIXINC_SYSTEM_H
  25 #define FIXINC_SYSTEM_H
  26
  27 /* We must include stdarg.h before stdio.h.  */
  28 #include <stdarg.h>
  29
  30 #ifdef HAVE_STDDEF_H
  31 # include <stddef.h>
  32 #endif
  33
  34 #include <stdio.h>
  35
  36 /* Define a generic NULL if one hasn't already been defined.  */
  37 #ifndef NULL
  38 #define NULL 0
  39 #endif
  40
  41 /* Use the unlocked open routines from libiberty.  */
  42 #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
  43 #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
  44 #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
  45
  46 /* fixincludes is not a multi-threaded application and therefore we
  47    do not have to use the locking functions.  In fact, using the locking
  48    functions can cause the compiler to be significantly slower under
  49    I/O bound conditions (such as -g -O0 on very large source files).
  50
  51    HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
  52    code is multi-thread safe by default.  If it is set to 0, then do
  53    not worry about using the _unlocked functions.
  54
  55    fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
  56    extensions and need to be prototyped by hand (since we do not
  57    define _GNU_SOURCE).  */
  58
  59 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
  60
  61 # ifdef HAVE_PUTC_UNLOCKED
  62 #  undef putc
  63 #  define putc(C, Stream) putc_unlocked (C, Stream)
  64 # endif
  65 # ifdef HAVE_PUTCHAR_UNLOCKED
  66 #  undef putchar
  67 #  define putchar(C) putchar_unlocked (C)
  68 # endif
  69 # ifdef HAVE_GETC_UNLOCKED
  70 #  undef getc
  71 #  define getc(Stream) getc_unlocked (Stream)
  72 # endif
  73 # ifdef HAVE_GETCHAR_UNLOCKED
  74 #  undef getchar
  75 #  define getchar() getchar_unlocked ()
  76 # endif
  77 # ifdef HAVE_FPUTC_UNLOCKED
  78 #  undef fputc
  79 #  define fputc(C, Stream) fputc_unlocked (C, Stream)
  80 # endif
  81
  82 # ifdef HAVE_CLEARERR_UNLOCKED
  83 #  undef clearerr
  84 #  define clearerr(Stream) clearerr_unlocked (Stream)
  85 #  if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
  86 extern void clearerr_unlocked (FILE *);
  87 #  endif
  88 # endif
  89 # ifdef HAVE_FEOF_UNLOCKED
  90 #  undef feof
  91 #  define feof(Stream) feof_unlocked (Stream)
  92 #  if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
  93 extern int feof_unlocked (FILE *);
  94 #  endif
  95 # endif
  96 # ifdef HAVE_FILENO_UNLOCKED
  97 #  undef fileno
  98 #  define fileno(Stream) fileno_unlocked (Stream)
  99 #  if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
 100 extern int fileno_unlocked (FILE *);
 101 #  endif
 102 # endif
 103 # ifdef HAVE_FFLUSH_UNLOCKED
 104 #  undef fflush
 105 #  define fflush(Stream) fflush_unlocked (Stream)
 106 #  if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
 107 extern int fflush_unlocked (FILE *);
 108 #  endif
 109 # endif
 110 # ifdef HAVE_FGETC_UNLOCKED
 111 #  undef fgetc
 112 #  define fgetc(Stream) fgetc_unlocked (Stream)
 113 #  if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
 114 extern int fgetc_unlocked (FILE *);
 115 #  endif
 116 # endif
 117 # ifdef HAVE_FGETS_UNLOCKED
 118 #  undef fgets
 119 #  define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
 120 #  if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
 121 extern char *fgets_unlocked (char *, int, FILE *);
 122 #  endif
 123 # endif
 124 # ifdef HAVE_FPUTS_UNLOCKED
 125 #  undef fputs
 126 #  define fputs(String, Stream) fputs_unlocked (String, Stream)
 127 #  if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
 128 extern int fputs_unlocked (const char *, FILE *);
 129 #  endif
 130 # endif
 131 # ifdef HAVE_FERROR_UNLOCKED
 132 #  undef ferror
 133 #  define ferror(Stream) ferror_unlocked (Stream)
 134 #  if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
 135 extern int ferror_unlocked (FILE *);
 136 #  endif
 137 # endif
 138 # ifdef HAVE_FREAD_UNLOCKED
 139 #  undef fread
 140 #  define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
 141 #  if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
 142 extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
 143 #  endif
 144 # endif
 145 # ifdef HAVE_FWRITE_UNLOCKED
 146 #  undef fwrite
 147 #  define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
 148 #  if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
 149 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
 150 #  endif
 151 # endif
 152 # ifdef HAVE_FPRINTF_UNLOCKED
 153 #  undef fprintf
 154 /* We can't use a function-like macro here because we don't know if
 155    we have varargs macros.  */
 156 #  define fprintf fprintf_unlocked
 157 #  if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
 158 extern int fprintf_unlocked (FILE *, const char *, ...);
 159 #  endif
 160 # endif
 161
 162 #endif
 163
 164 /* ??? Glibc's fwrite/fread_unlocked macros cause
 165    "warning: signed and unsigned type in conditional expression".  */
 166 #undef fread_unlocked
 167 #undef fwrite_unlocked
 168
 169 #include <sys/types.h>
 170 #include <errno.h>
 171
 172 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
 173 extern int errno;
 174 #endif
 175
 176 /* Some of glibc's string inlines cause warnings.  Plus we'd rather
 177    rely on (and therefore test) GCC's string builtins.  */
 178 #define __NO_STRING_INLINES
 179
 180 #ifdef HAVE_STRING_H
 181 # include <string.h>
 182 #else
 183 # ifdef HAVE_STRINGS_H
 184 #  include <strings.h>
 185 # endif
 186 #endif
 187
 188 #ifdef HAVE_STDLIB_H
 189 # include <stdlib.h>
 190 #endif
 191
 192 #ifdef HAVE_UNISTD_H
 193 # include <unistd.h>
 194 #endif
 195
 196 #ifdef HAVE_FCNTL_H
 197 # include <fcntl.h>
 198 #else
 199 # ifdef HAVE_SYS_FILE_H
 200 #  include <sys/file.h>
 201 # endif
 202 #endif
 203
 204 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1.  If they
 205    are defined to 0 then we must provide the relevant declaration
 206    here.  These checks will be in the undefined state while configure
 207    is running so be careful to test "defined (HAVE_DECL_*)".  */
 208
 209 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
 210 extern void abort (void);
 211 #endif
 212
 213 #if HAVE_SYS_STAT_H
 214 # include <sys/stat.h>
 215 #endif
 216
 217 /* Test if something is a normal file.  */
 218 #ifndef S_ISREG
 219 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 220 #endif
 221
 222 /* Filename handling macros.  */
 223 #include "filenames.h"
 224
 225 /* Get libiberty declarations.  */
 226 #include "libiberty.h"
 227 #include "safe-ctype.h"
 228
 229 #endif /* ! FIXINC_SYSTEM_H */