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, 2009
   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 3, 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 COPYING3.  If not see
  23 <http://www.gnu.org/licenses/>.  */
  24
  25 #ifndef GCC_FIXLIB_H
  26 #define GCC_FIXLIB_H
  27
  28 #include "config.h"
  29 #include "system.h"
  30 #include <signal.h>
  31
  32 #include "xregex.h"
  33 #include "libiberty.h"
  34
  35 #ifndef STDIN_FILENO
  36 # define STDIN_FILENO   0
  37 #endif
  38 #ifndef STDOUT_FILENO
  39 # define STDOUT_FILENO  1
  40 #endif
  41
  42 #if ! defined( SIGCHLD ) && defined( SIGCLD )
  43 #  define SIGCHLD SIGCLD
  44 #endif
  45
  46 #ifndef SIGQUIT
  47 #define SIGQUIT SIGTERM
  48 #endif
  49 #ifndef SIGIOT
  50 #define SIGIOT SIGTERM
  51 #endif
  52 #ifndef SIGPIPE
  53 #define SIGPIPE SIGTERM
  54 #endif
  55 #ifndef SIGALRM
  56 #define SIGALRM SIGTERM
  57 #endif
  58 #ifndef SIGKILL
  59 #define SIGKILL SIGTERM
  60 #endif
  61
  62 typedef int t_success;
  63
  64 #define FAILURE         (-1)
  65 #define SUCCESS           0
  66 #define PROBLEM           1
  67
  68 #define SUCCEEDED(p)    ((p) == SUCCESS)
  69 #define SUCCESSFUL(p)   SUCCEEDED (p)
  70 #define FAILED(p)       ((p) < SUCCESS)
  71 #define HADGLITCH(p)    ((p) > SUCCESS)
  72
  73 #ifndef DEBUG
  74 # define STATIC static
  75 #else
  76 # define STATIC
  77 #endif
  78
  79 #define tSCC static const char
  80 #define tCC  const char
  81 #define tSC  static char
  82
  83 /* If this particular system's header files define the macro `MAXPATHLEN',
  84    we happily take advantage of it; otherwise we use a value which ought
  85    to be large enough.  */
  86 #ifndef MAXPATHLEN
  87 # define MAXPATHLEN     4096
  88 #endif
  89
  90 #ifndef EXIT_SUCCESS
  91 # define EXIT_SUCCESS 0
  92 #endif
  93 #ifndef EXIT_FAILURE
  94 # define EXIT_FAILURE 1
  95 #endif
  96
  97 #define EXIT_BROKEN  3
  98
  99 #define NUL             '\0'
 100
 101 #ifndef NOPROCESS
 102 #define NOPROCESS       ((pid_t) -1)
 103 #define NULLPROCESS     ((pid_t)0)
 104
 105 #define EXIT_PANIC      99
 106 #endif /* NOPROCESS */
 107
 108 #define IGNORE_ARG(a)   ((void)(a))
 109
 110 typedef enum t_bool
 111 {
 112   BOOL_FALSE, BOOL_TRUE
 113 } t_bool;
 114
 115 typedef int apply_fix_p_t;  /* Apply Fix Predicate Type */
 116
 117 #define APPLY_FIX 0
 118 #define SKIP_FIX  1
 119
 120 #define ENV_TABLE                                    \
 121   _ENV_( pz_machine,   BOOL_TRUE, "TARGET_MACHINE",  \
 122          "output from config.guess" )                \
 123                                                      \
 124   _ENV_( pz_orig_dir,  BOOL_TRUE, "ORIGDIR",         \
 125          "directory of fixincl and applyfix" )       \
 126                                                      \
 127   _ENV_( pz_src_dir,   BOOL_TRUE, "SRCDIR",          \
 128          "directory of original files" )             \
 129                                                      \
 130   _ENV_( pz_input_dir, BOOL_TRUE, "INPUT",           \
 131          "current directory for fixincl" )           \
 132                                                      \
 133   _ENV_( pz_dest_dir,  BOOL_TRUE, "DESTDIR",         \
 134          "output directory" )                        \
 135                                                      \
 136   _ENV_( pz_mn_name_pat, BOOL_FALSE, "MN_NAME_PAT",  \
 137          "regex matching forbidden identifiers" )    \
 138                                                      \
 139   _ENV_( pz_verbose,  BOOL_FALSE, "VERBOSE",         \
 140          "amount of user entertainment" )            \
 141                                                      \
 142   _ENV_( pz_find_base, BOOL_TRUE, "FIND_BASE",       \
 143          "leader to trim from file names" )
 144
 145 #define _ENV_(v,m,n,t)   extern tCC* v;
 146 ENV_TABLE
 147 #undef _ENV_
 148
 149 /*  Test Descriptor
 150
 151     Each fix may have associated tests that determine
 152     whether the fix needs to be applied or not.
 153     Each test has a type (from the te_test_type enumeration);
 154     associated test text; and, if the test is TT_EGREP or
 155     the negated form TT_NEGREP, a pointer to the compiled
 156     version of the text string.
 157
 158     */
 159 typedef enum
 160 {
 161   TT_TEST, TT_EGREP, TT_NEGREP, TT_FUNCTION
 162 } te_test_type;
 163
 164 typedef struct test_desc tTestDesc;
 165
 166 struct test_desc
 167 {
 168   te_test_type type;
 169   const char *pz_test_text;
 170   regex_t *p_test_regex;
 171 };
 172
 173 typedef struct patch_desc tPatchDesc;
 174
 175 /*  Fix Descriptor
 176
 177     Everything you ever wanted to know about how to apply
 178     a particular fix (which files, how to qualify them,
 179     how to actually make the fix, etc...)
 180
 181     NB:  the FD_ defines are BIT FLAGS, even though
 182          some are mutually exclusive
 183
 184     */
 185 #define FD_MACH_ONLY      0x0000
 186 #define FD_MACH_IFNOT     0x0001
 187 #define FD_SHELL_SCRIPT   0x0002
 188 #define FD_SUBROUTINE     0x0004
 189 #define FD_REPLACEMENT    0x0008
 190 #define FD_SKIP_TEST      0x8000
 191
 192 typedef struct fix_desc tFixDesc;
 193 struct fix_desc
 194 {
 195   tCC*        fix_name;       /* Name of the fix */
 196   tCC*        file_list;      /* List of files it applies to */
 197   tCC**       papz_machs;     /* List of machine/os-es it applies to */
 198   int         test_ct;
 199   int         fd_flags;
 200   tTestDesc*  p_test_desc;
 201   tCC**       patch_args;
 202   long        unused;
 203 };
 204
 205 typedef struct {
 206   int         type_name_len;
 207   tCC*        pz_type;
 208   tCC*        pz_TYPE;
 209   tCC*        pz_gtype;
 210 } t_gnu_type_map;
 211
 212 extern int gnu_type_map_ct;
 213
 214 #ifdef HAVE_MMAP_FILE
 215 #define UNLOAD_DATA() do { if (curr_data_mapped) { \
 216   munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \
 217   else free ((void*)pz_curr_data); } while(0)
 218 #else
 219 #define UNLOAD_DATA() free ((void*)pz_curr_data)
 220 #endif
 221
 222 /*
 223  *  Exported procedures
 224  */
 225 char * load_file_data ( FILE* fp );
 226
 227 #ifdef IS_CXX_HEADER_NEEDED
 228 t_bool is_cxx_header ( tCC* filename, tCC* filetext );
 229 #endif /* IS_CXX_HEADER_NEEDED */
 230
 231 #ifdef SKIP_QUOTE_NEEDED
 232 tCC*   skip_quote ( char  q, char* text );
 233 #endif
 234
 235 void   compile_re ( tCC* pat, regex_t* re, int match, tCC *e1, tCC *e2 );
 236
 237 void   apply_fix ( tFixDesc* p_fixd, tCC* filname );
 238 apply_fix_p_t
 239        run_test ( tCC* t_name, tCC* f_name, tCC* text );
 240
 241 #ifdef SEPARATE_FIX_PROC
 242 char*  make_raw_shell_str ( char* pz_d, tCC* pz_s, size_t smax );
 243 #endif
 244
 245 t_bool mn_get_regexps ( regex_t** label_re, regex_t** name_re, tCC *who );
 246
 247 void   initialize_opts ( void );
 248 #endif /* ! GCC_FIXLIB_H */