fixincludes/fixlib.h

   1
   2 /* Install modified versions of certain ANSI-incompatible system header
   3    files which are fixed to work correctly with ANSI C and placed in a
   4    directory that GCC will search.
   5
   6    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
   7    Free Software Foundation, Inc.
   8
   9 This file is part of GCC.
  10
  11 GCC is free software; you can redistribute it and/or modify
  12 it under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 2, or (at your option)
  14 any later version.
  15
  16 GCC is distributed in the hope that it will be useful,
  17 but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 GNU General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with GCC; see the file COPYING.  If not, write to
  23 the Free Software Foundation, 59 Temple Place - Suite 330,
  24 Boston, MA 02111-1307, USA.  */
  25
  26 #ifndef GCC_FIXLIB_H
  27 #define GCC_FIXLIB_H
  28
  29 #include "config.h"
  30 #include "system.h"
  31 #include <signal.h>
  32
  33 #include "xregex.h"
  34 #include "libiberty.h"
  35
  36 #ifndef STDIN_FILENO
  37 # define STDIN_FILENO   0
  38 #endif
  39 #ifndef STDOUT_FILENO
  40 # define STDOUT_FILENO  1
  41 #endif
  42
  43 typedef int t_success;
  44
  45 #define FAILURE         (-1)
  46 #define SUCCESS           0
  47 #define PROBLEM           1
  48
  49 #define SUCCEEDED(p)    ((p) == SUCCESS)
  50 #define SUCCESSFUL(p)   SUCCEEDED (p)
  51 #define FAILED(p)       ((p) < SUCCESS)
  52 #define HADGLITCH(p)    ((p) > SUCCESS)
  53
  54 #ifndef DEBUG
  55 # define STATIC static
  56 #else
  57 # define STATIC
  58 #endif
  59
  60 #define tSCC static const char
  61 #define tCC  const char
  62 #define tSC  static char
  63
  64 /* If this particular system's header files define the macro `MAXPATHLEN',
  65    we happily take advantage of it; otherwise we use a value which ought
  66    to be large enough.  */
  67 #ifndef MAXPATHLEN
  68 # define MAXPATHLEN     4096
  69 #endif
  70
  71 #ifndef EXIT_SUCCESS
  72 # define EXIT_SUCCESS 0
  73 #endif
  74 #ifndef EXIT_FAILURE
  75 # define EXIT_FAILURE 1
  76 #endif
  77
  78 #define EXIT_BROKEN  3
  79
  80 #define NUL             '\0'
  81
  82 #ifndef NOPROCESS
  83 #define NOPROCESS       ((pid_t) -1)
  84 #define NULLPROCESS     ((pid_t)0)
  85
  86 #define EXIT_PANIC      99
  87 #endif /* NOPROCESS */
  88
  89 #define IGNORE_ARG(a)   ((void)(a))
  90
  91 typedef enum t_bool
  92 {
  93   BOOL_FALSE, BOOL_TRUE
  94 } t_bool;
  95
  96 typedef int apply_fix_p_t;  /* Apply Fix Predicate Type */
  97
  98 #define APPLY_FIX 0
  99 #define SKIP_FIX  1
 100
 101 #define ENV_TABLE                                    \
 102   _ENV_( pz_machine,   BOOL_TRUE, "TARGET_MACHINE",  \
 103          "output from config.guess" )                \
 104                                                      \
 105   _ENV_( pz_orig_dir,  BOOL_TRUE, "ORIGDIR",         \
 106          "directory of fixincl and applyfix" )       \
 107                                                      \
 108   _ENV_( pz_src_dir,   BOOL_TRUE, "SRCDIR",          \
 109          "directory of original files" )             \
 110                                                      \
 111   _ENV_( pz_input_dir, BOOL_TRUE, "INPUT",           \
 112          "current directory for fixincl" )           \
 113                                                      \
 114   _ENV_( pz_dest_dir,  BOOL_TRUE, "DESTDIR",         \
 115          "output directory" )                        \
 116                                                      \
 117   _ENV_( pz_mn_name_pat, BOOL_FALSE, "MN_NAME_PAT",  \
 118          "regex matching forbidden identifiers" )    \
 119                                                      \
 120   _ENV_( pz_verbose,  BOOL_FALSE, "VERBOSE",         \
 121          "amount of user entertainment" )            \
 122                                                      \
 123   _ENV_( pz_find_base, BOOL_TRUE, "FIND_BASE",       \
 124          "leader to trim from file names" )
 125
 126 #define _ENV_(v,m,n,t)   extern tCC* v;
 127 ENV_TABLE
 128 #undef _ENV_
 129
 130 /*  Test Descriptor
 131
 132     Each fix may have associated tests that determine
 133     whether the fix needs to be applied or not.
 134     Each test has a type (from the te_test_type enumeration);
 135     associated test text; and, if the test is TT_EGREP or
 136     the negated form TT_NEGREP, a pointer to the compiled
 137     version of the text string.
 138
 139     */
 140 typedef enum
 141 {
 142   TT_TEST, TT_EGREP, TT_NEGREP, TT_FUNCTION
 143 } te_test_type;
 144
 145 typedef struct test_desc tTestDesc;
 146
 147 struct test_desc
 148 {
 149   te_test_type type;
 150   const char *pz_test_text;
 151   regex_t *p_test_regex;
 152 };
 153
 154 typedef struct patch_desc tPatchDesc;
 155
 156 /*  Fix Descriptor
 157
 158     Everything you ever wanted to know about how to apply
 159     a particular fix (which files, how to qualify them,
 160     how to actually make the fix, etc...)
 161
 162     NB:  the FD_ defines are BIT FLAGS, even though
 163          some are mutually exclusive
 164
 165     */
 166 #define FD_MACH_ONLY      0x0000
 167 #define FD_MACH_IFNOT     0x0001
 168 #define FD_SHELL_SCRIPT   0x0002
 169 #define FD_SUBROUTINE     0x0004
 170 #define FD_REPLACEMENT    0x0008
 171 #define FD_SKIP_TEST      0x8000
 172
 173 typedef struct fix_desc tFixDesc;
 174 struct fix_desc
 175 {
 176   tCC*        fix_name;       /* Name of the fix */
 177   tCC*        file_list;      /* List of files it applies to */
 178   tCC**       papz_machs;     /* List of machine/os-es it applies to */
 179   int         test_ct;
 180   int         fd_flags;
 181   tTestDesc*  p_test_desc;
 182   tCC**       patch_args;
 183   long        unused;
 184 };
 185
 186 typedef struct {
 187   int         type_name_len;
 188   tCC*        pz_type;
 189   tCC*        pz_TYPE;
 190   tCC*        pz_gtype;
 191 } t_gnu_type_map;
 192
 193 extern int gnu_type_map_ct;
 194
 195 #ifdef HAVE_MMAP_FILE
 196 #define UNLOAD_DATA() do { if (curr_data_mapped) { \
 197   munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \
 198   else free ((void*)pz_curr_data); } while(0)
 199 #else
 200 #define UNLOAD_DATA() free ((void*)pz_curr_data)
 201 #endif
 202
 203 /*
 204  *  Exported procedures
 205  */
 206 char * load_file_data ( FILE* fp );
 207
 208 #ifdef IS_CXX_HEADER_NEEDED
 209 t_bool is_cxx_header ( tCC* filename, tCC* filetext );
 210 #endif /* IS_CXX_HEADER_NEEDED */
 211
 212 #ifdef SKIP_QUOTE_NEEDED
 213 tCC*   skip_quote ( char  q, char* text );
 214 #endif
 215
 216 void   compile_re ( tCC* pat, regex_t* re, int match, tCC *e1, tCC *e2 );
 217
 218 void   apply_fix ( tFixDesc* p_fixd, tCC* filname );
 219 apply_fix_p_t
 220        run_test ( tCC* t_name, tCC* f_name, tCC* text );
 221
 222 #ifdef SEPARATE_FIX_PROC
 223 char*  make_raw_shell_str ( char* pz_d, tCC* pz_s, size_t smax );
 224 #endif
 225
 226 t_bool mn_get_regexps ( regex_t** label_re, regex_t** name_re, tCC *who );
 227 #endif /* ! GCC_FIXLIB_H */