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, 2012
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 _ENV_( pz_test_mode, BOOL_FALSE, "TEST_MODE", \
146 "run fixincludes in test mode" )
147
148 #define _ENV_(v,m,n,t) extern tCC* v;
149 ENV_TABLE
150 #undef _ENV_
151
152 /* Test Descriptor
153
154 Each fix may have associated tests that determine
155 whether the fix needs to be applied or not.
156 Each test has a type (from the te_test_type enumeration);
157 associated test text; and, if the test is TT_EGREP or
158 the negated form TT_NEGREP, a pointer to the compiled
159 version of the text string.
160
161 */
162 typedef enum
163 {
164 TT_TEST, TT_EGREP, TT_NEGREP, TT_FUNCTION, TT_CKSUM
165 } te_test_type;
166
167 typedef struct test_desc tTestDesc;
168
169 struct test_desc
170 {
171 te_test_type type;
172 const char *pz_test_text;
173 regex_t *p_test_regex;
174 };
175
176 typedef struct patch_desc tPatchDesc;
177
178 /* Fix Descriptor
179
180 Everything you ever wanted to know about how to apply
181 a particular fix (which files, how to qualify them,
182 how to actually make the fix, etc...)
183
184 NB: the FD_ defines are BIT FLAGS, even though
185 some are mutually exclusive
186
187 */
188 #define FD_MACH_ONLY 0x0000
189 #define FD_MACH_IFNOT 0x0001
190 #define FD_SHELL_SCRIPT 0x0002
191 #define FD_SUBROUTINE 0x0004
192 #define FD_REPLACEMENT 0x0008
193 #define FD_SKIP_TEST 0x8000
194
195 typedef struct fix_desc tFixDesc;
196 struct fix_desc
197 {
198 tCC* fix_name; /* Name of the fix */
199 tCC* file_list; /* List of files it applies to */
200 tCC** papz_machs; /* List of machine/os-es it applies to */
201 int test_ct;
202 int fd_flags;
203 tTestDesc* p_test_desc;
204 tCC** patch_args;
205 long unused;
206 };
207
208 typedef struct {
209 int type_name_len;
210 tCC* pz_type;
211 tCC* pz_TYPE;
212 tCC* pz_gtype;
213 } t_gnu_type_map;
214
215 extern int gnu_type_map_ct;
216
217 typedef enum {
218 VERB_SILENT = 0,
219 VERB_FIXES,
220 VERB_APPLIES,
221 VERB_PROGRESS,
222 VERB_TESTS,
223 VERB_EVERYTHING
224 } te_verbose;
225
226 extern te_verbose verbose_level;
227
228 #define VLEVEL(l) ((unsigned int) verbose_level >= (unsigned int) l)
229 #define NOT_SILENT VLEVEL(VERB_FIXES)
230
231 typedef enum {
232 TESTING_OFF = 0,
233 TESTING_ON = 1
234 } fixinc_mode_t;
235
236 extern fixinc_mode_t fixinc_mode;
237
238 #ifdef HAVE_MMAP_FILE
239 #define UNLOAD_DATA() do { if (curr_data_mapped) { \
240 munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \
241 else free ((void*)pz_curr_data); } while(0)
242 #else
243 #define UNLOAD_DATA() free ((void*)pz_curr_data)
244 #endif
245
246 /*
247 * Exported procedures
248 */
249 char * load_file_data ( FILE* fp );
250
251 #ifdef IS_CXX_HEADER_NEEDED
252 t_bool is_cxx_header ( tCC* filename, tCC* filetext );
253 #endif /* IS_CXX_HEADER_NEEDED */
254
255 #ifdef SKIP_QUOTE_NEEDED
256 tCC* skip_quote ( char q, char* text );
257 #endif
258
259 void compile_re ( tCC* pat, regex_t* re, int match, tCC *e1, tCC *e2 );
260
261 void apply_fix ( tFixDesc* p_fixd, tCC* filname );
262 apply_fix_p_t
263 run_test ( tCC* t_name, tCC* f_name, tCC* text );
264
265 #ifdef SEPARATE_FIX_PROC
266 char* make_raw_shell_str ( char* pz_d, tCC* pz_s, size_t smax );
267 #endif
268
269 t_bool mn_get_regexps ( regex_t** label_re, regex_t** name_re, tCC *who );
270
271 void initialize_opts ( void );
272
273 #if defined(__MINGW32__)
274
275 void fix_path_separators ( char* p );
276
277 /* prepend shell name to command passed to system call */
278 int system_with_shell ( char* s );
279
280 #else
281
282 /* normal call */
283 #define system_with_shell system
284
285 #endif /* defined(__MINGW32__) */
286
287 #endif /* ! GCC_FIXLIB_H */