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 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 "coretypes.h"
  32 #include "tm.h"
  33 #include <signal.h>
  34
  35 #include "xregex.h"
  36 #include "machname.h"
  37 #include "libiberty.h"
  38
  39 #ifndef STDIN_FILENO
  40 # define STDIN_FILENO   0
  41 #endif
  42 #ifndef STDOUT_FILENO
  43 # define STDOUT_FILENO  1
  44 #endif
  45
  46 typedef int t_success;
  47
  48 #define FAILURE         (-1)
  49 #define SUCCESS           0
  50 #define PROBLEM           1
  51
  52 #define SUCCEEDED(p)    ((p) == SUCCESS)
  53 #define SUCCESSFUL(p)   SUCCEEDED (p)
  54 #define FAILED(p)       ((p) < SUCCESS)
  55 #define HADGLITCH(p)    ((p) > SUCCESS)
  56
  57 #ifndef DEBUG
  58 # define STATIC static
  59 #else
  60 # define STATIC
  61 #endif
  62
  63 #define tSCC static const char
  64 #define tCC  const char
  65 #define tSC  static char
  66
  67 /* If this particular system's header files define the macro `MAXPATHLEN',
  68    we happily take advantage of it; otherwise we use a value which ought
  69    to be large enough.  */
  70 #ifndef MAXPATHLEN
  71 # define MAXPATHLEN     4096
  72 #endif
  73
  74 #ifndef EXIT_SUCCESS
  75 # define EXIT_SUCCESS 0
  76 #endif
  77 #ifndef EXIT_FAILURE
  78 # define EXIT_FAILURE 1
  79 #endif
  80
  81 #define EXIT_BROKEN  3
  82
  83 #define NUL             '\0'
  84
  85 #ifndef NOPROCESS
  86 #define NOPROCESS       ((pid_t) -1)
  87 #define NULLPROCESS     ((pid_t)0)
  88
  89 #define EXIT_PANIC      99
  90 #endif /* NOPROCESS */
  91
  92 #define IGNORE_ARG(a)   ((void)(a))
  93
  94 typedef enum t_bool
  95 {
  96   BOOL_FALSE, BOOL_TRUE
  97 } t_bool;
  98
  99 typedef int apply_fix_p_t;  /* Apply Fix Predicate Type */
 100
 101 #define APPLY_FIX 0
 102 #define SKIP_FIX  1
 103
 104 #define ENV_TABLE                                    \
 105   _ENV_( pz_machine,   BOOL_TRUE, "TARGET_MACHINE",  \
 106          "output from config.guess" )                \
 107                                                      \
 108   _ENV_( pz_orig_dir,  BOOL_TRUE, "ORIGDIR",         \
 109          "directory of fixincl and applyfix" )       \
 110                                                      \
 111   _ENV_( pz_src_dir,   BOOL_TRUE, "SRCDIR",          \
 112          "directory of original files" )             \
 113                                                      \
 114   _ENV_( pz_input_dir, BOOL_TRUE, "INPUT",           \
 115          "current directory for fixincl" )           \
 116                                                      \
 117   _ENV_( pz_dest_dir,  BOOL_TRUE, "DESTDIR",         \
 118          "output directory" )                        \
 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 /*  Test Descriptor
 127
 128     Each fix may have associated tests that determine
 129     whether the fix needs to be applied or not.
 130     Each test has a type (from the te_test_type enumeration);
 131     associated test text; and, if the test is TT_EGREP or
 132     the negated form TT_NEGREP, a pointer to the compiled
 133     version of the text string.
 134
 135     */
 136 typedef enum
 137 {
 138   TT_TEST, TT_EGREP, TT_NEGREP, TT_FUNCTION
 139 } te_test_type;
 140
 141 typedef struct test_desc tTestDesc;
 142
 143 struct test_desc
 144 {
 145   te_test_type type;
 146   const char *pz_test_text;
 147   regex_t *p_test_regex;
 148 };
 149
 150 typedef struct patch_desc tPatchDesc;
 151
 152 /*  Fix Descriptor
 153
 154     Everything you ever wanted to know about how to apply
 155     a particular fix (which files, how to qualify them,
 156     how to actually make the fix, etc...)
 157
 158     NB:  the FD_ defines are BIT FLAGS, even though
 159          some are mutually exclusive
 160
 161     */
 162 #define FD_MACH_ONLY      0x0000
 163 #define FD_MACH_IFNOT     0x0001
 164 #define FD_SHELL_SCRIPT   0x0002
 165 #define FD_SUBROUTINE     0x0004
 166 #define FD_REPLACEMENT    0x0008
 167 #define FD_SKIP_TEST      0x8000
 168
 169 typedef struct fix_desc tFixDesc;
 170 struct fix_desc
 171 {
 172   tCC*        fix_name;       /* Name of the fix */
 173   tCC*        file_list;      /* List of files it applies to */
 174   tCC**       papz_machs;     /* List of machine/os-es it applies to */
 175   int         test_ct;
 176   int         fd_flags;
 177   tTestDesc*  p_test_desc;
 178   tCC**       patch_args;
 179   long        unused;
 180 };
 181
 182 typedef struct {
 183   int         type_name_len;
 184   tCC*        pz_type;
 185   tCC*        pz_TYPE;
 186   tCC*        pz_gtype;
 187 } t_gnu_type_map;
 188
 189 extern int gnu_type_map_ct;
 190
 191 #ifdef HAVE_MMAP_FILE
 192 #define UNLOAD_DATA() do { if (curr_data_mapped) { \
 193   munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \
 194   else free ((void*)pz_curr_data); } while(0)
 195 #else
 196 #define UNLOAD_DATA() free ((void*)pz_curr_data)
 197 #endif
 198
 199 /*
 200  *  Exported procedures
 201  */
 202 char * load_file_data ( FILE* fp );
 203
 204 #ifdef IS_CXX_HEADER_NEEDED
 205 t_bool is_cxx_header ( tCC* filename, tCC* filetext );
 206 #endif /* IS_CXX_HEADER_NEEDED */
 207
 208 #ifdef SKIP_QUOTE_NEEDED
 209 tCC*   skip_quote ( char  q, char* text );
 210 #endif
 211
 212 void   compile_re ( tCC* pat, regex_t* re, int match, tCC *e1, tCC *e2 );
 213
 214 void   apply_fix ( tFixDesc* p_fixd, tCC* filname );
 215 apply_fix_p_t
 216        run_test ( tCC* t_name, tCC* f_name, tCC* text );
 217
 218 #ifdef SEPARATE_FIX_PROC
 219 char*  make_raw_shell_str ( char* pz_d, tCC* pz_s, size_t smax );
 220 #endif
 221
 222 #ifdef MN_NAME_PAT
 223 void   mn_get_regexps ( regex_t** label_re, regex_t** name_re, tCC *who );
 224 #endif
 225 #endif /* ! GCC_FIXLIB_H */