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, 2004
   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, 51 Franklin Street, Fifth Floor,
  24 Boston, MA 02110-1301, 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 #if ! defined( SIGCHLD ) && defined( SIGCLD )
  44 #  define SIGCHLD SIGCLD
  45 #endif
  46
  47 #ifndef SIGQUIT
  48 #define SIGQUIT SIGTERM
  49 #endif
  50 #ifndef SIGIOT
  51 #define SIGIOT SIGTERM
  52 #endif
  53 #ifndef SIGPIPE
  54 #define SIGPIPE SIGTERM
  55 #endif
  56 #ifndef SIGALRM
  57 #define SIGALRM SIGTERM
  58 #endif
  59 #ifndef SIGKILL
  60 #define SIGKILL SIGTERM
  61 #endif
  62
  63 typedef int t_success;
  64
  65 #define FAILURE         (-1)
  66 #define SUCCESS           0
  67 #define PROBLEM           1
  68
  69 #define SUCCEEDED(p)    ((p) == SUCCESS)
  70 #define SUCCESSFUL(p)   SUCCEEDED (p)
  71 #define FAILED(p)       ((p) < SUCCESS)
  72 #define HADGLITCH(p)    ((p) > SUCCESS)
  73
  74 #ifndef DEBUG
  75 # define STATIC static
  76 #else
  77 # define STATIC
  78 #endif
  79
  80 #define tSCC static const char
  81 #define tCC  const char
  82 #define tSC  static char
  83
  84 /* If this particular system's header files define the macro `MAXPATHLEN',
  85    we happily take advantage of it; otherwise we use a value which ought
  86    to be large enough.  */
  87 #ifndef MAXPATHLEN
  88 # define MAXPATHLEN     4096
  89 #endif
  90
  91 #ifndef EXIT_SUCCESS
  92 # define EXIT_SUCCESS 0
  93 #endif
  94 #ifndef EXIT_FAILURE
  95 # define EXIT_FAILURE 1
  96 #endif
  97
  98 #define EXIT_BROKEN  3
  99
 100 #define NUL             '\0'
 101
 102 #ifndef NOPROCESS
 103 #define NOPROCESS       ((pid_t) -1)
 104 #define NULLPROCESS     ((pid_t)0)
 105
 106 #define EXIT_PANIC      99
 107 #endif /* NOPROCESS */
 108
 109 #define IGNORE_ARG(a)   ((void)(a))
 110
 111 typedef enum t_bool
 112 {
 113   BOOL_FALSE, BOOL_TRUE
 114 } t_bool;
 115
 116 typedef int apply_fix_p_t;  /* Apply Fix Predicate Type */
 117
 118 #define APPLY_FIX 0
 119 #define SKIP_FIX  1
 120
 121 #define ENV_TABLE                                    \
 122   _ENV_( pz_machine,   BOOL_TRUE, "TARGET_MACHINE",  \
 123          "output from config.guess" )                \
 124                                                      \
 125   _ENV_( pz_orig_dir,  BOOL_TRUE, "ORIGDIR",         \
 126          "directory of fixincl and applyfix" )       \
 127                                                      \
 128   _ENV_( pz_src_dir,   BOOL_TRUE, "SRCDIR",          \
 129          "directory of original files" )             \
 130                                                      \
 131   _ENV_( pz_input_dir, BOOL_TRUE, "INPUT",           \
 132          "current directory for fixincl" )           \
 133                                                      \
 134   _ENV_( pz_dest_dir,  BOOL_TRUE, "DESTDIR",         \
 135          "output directory" )                        \
 136                                                      \
 137   _ENV_( pz_mn_name_pat, BOOL_FALSE, "MN_NAME_PAT",  \
 138          "regex matching forbidden identifiers" )    \
 139                                                      \
 140   _ENV_( pz_verbose,  BOOL_FALSE, "VERBOSE",         \
 141          "amount of user entertainment" )            \
 142                                                      \
 143   _ENV_( pz_find_base, BOOL_TRUE, "FIND_BASE",       \
 144          "leader to trim from file names" )
 145
 146 #define _ENV_(v,m,n,t)   extern tCC* v;
 147 ENV_TABLE
 148 #undef _ENV_
 149
 150 /*  Test Descriptor
 151
 152     Each fix may have associated tests that determine
 153     whether the fix needs to be applied or not.
 154     Each test has a type (from the te_test_type enumeration);
 155     associated test text; and, if the test is TT_EGREP or
 156     the negated form TT_NEGREP, a pointer to the compiled
 157     version of the text string.
 158
 159     */
 160 typedef enum
 161 {
 162   TT_TEST, TT_EGREP, TT_NEGREP, TT_FUNCTION
 163 } te_test_type;
 164
 165 typedef struct test_desc tTestDesc;
 166
 167 struct test_desc
 168 {
 169   te_test_type type;
 170   const char *pz_test_text;
 171   regex_t *p_test_regex;
 172 };
 173
 174 typedef struct patch_desc tPatchDesc;
 175
 176 /*  Fix Descriptor
 177
 178     Everything you ever wanted to know about how to apply
 179     a particular fix (which files, how to qualify them,
 180     how to actually make the fix, etc...)
 181
 182     NB:  the FD_ defines are BIT FLAGS, even though
 183          some are mutually exclusive
 184
 185     */
 186 #define FD_MACH_ONLY      0x0000
 187 #define FD_MACH_IFNOT     0x0001
 188 #define FD_SHELL_SCRIPT   0x0002
 189 #define FD_SUBROUTINE     0x0004
 190 #define FD_REPLACEMENT    0x0008
 191 #define FD_SKIP_TEST      0x8000
 192
 193 typedef struct fix_desc tFixDesc;
 194 struct fix_desc
 195 {
 196   tCC*        fix_name;       /* Name of the fix */
 197   tCC*        file_list;      /* List of files it applies to */
 198   tCC**       papz_machs;     /* List of machine/os-es it applies to */
 199   int         test_ct;
 200   int         fd_flags;
 201   tTestDesc*  p_test_desc;
 202   tCC**       patch_args;
 203   long        unused;
 204 };
 205
 206 typedef struct {
 207   int         type_name_len;
 208   tCC*        pz_type;
 209   tCC*        pz_TYPE;
 210   tCC*        pz_gtype;
 211 } t_gnu_type_map;
 212
 213 extern int gnu_type_map_ct;
 214
 215 #ifdef HAVE_MMAP_FILE
 216 #define UNLOAD_DATA() do { if (curr_data_mapped) { \
 217   munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \
 218   else free ((void*)pz_curr_data); } while(0)
 219 #else
 220 #define UNLOAD_DATA() free ((void*)pz_curr_data)
 221 #endif
 222
 223 /*
 224  *  Exported procedures
 225  */
 226 char * load_file_data ( FILE* fp );
 227
 228 #ifdef IS_CXX_HEADER_NEEDED
 229 t_bool is_cxx_header ( tCC* filename, tCC* filetext );
 230 #endif /* IS_CXX_HEADER_NEEDED */
 231
 232 #ifdef SKIP_QUOTE_NEEDED
 233 tCC*   skip_quote ( char  q, char* text );
 234 #endif
 235
 236 void   compile_re ( tCC* pat, regex_t* re, int match, tCC *e1, tCC *e2 );
 237
 238 void   apply_fix ( tFixDesc* p_fixd, tCC* filname );
 239 apply_fix_p_t
 240        run_test ( tCC* t_name, tCC* f_name, tCC* text );
 241
 242 #ifdef SEPARATE_FIX_PROC
 243 char*  make_raw_shell_str ( char* pz_d, tCC* pz_s, size_t smax );
 244 #endif
 245
 246 t_bool mn_get_regexps ( regex_t** label_re, regex_t** name_re, tCC *who );
 247
 248 void   initialize_opts ( void );
 249 #endif /* ! GCC_FIXLIB_H */