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