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5538ada6 | 1 | /* CPP Library. |
5e7b4e25 | 2 | Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
03b9ab42 | 3 | 1999, 2000, 2001 Free Software Foundation, Inc. |
5538ada6 ZW |
4 | Contributed by Per Bothner, 1994-95. |
5 | Based on CCCP program by Paul Rubin, June 1986 | |
6 | Adapted to ANSI C, Richard Stallman, Jan 1987 | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU General Public License as published by the | |
10 | Free Software Foundation; either version 2, or (at your option) any | |
11 | later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
5538ada6 ZW |
22 | #include "config.h" |
23 | #include "system.h" | |
6de1e2a9 ZW |
24 | #include "cpplib.h" |
25 | #include "cpphash.h" | |
26 | #include "output.h" | |
27 | #include "prefix.h" | |
28 | #include "intl.h" | |
9f8f4efe | 29 | #include "version.h" |
49e6c08e | 30 | #include "mkdeps.h" |
60893f43 | 31 | #include "cppdefault.h" |
6de1e2a9 | 32 | |
4a58aab6 | 33 | /* Predefined symbols, built-in macros, and the default include path. */ |
6de1e2a9 ZW |
34 | |
35 | #ifndef GET_ENV_PATH_LIST | |
36 | #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0) | |
37 | #endif | |
38 | ||
88ae23e7 ZW |
39 | /* Windows does not natively support inodes, and neither does MSDOS. |
40 | Cygwin's emulation can generate non-unique inodes, so don't use it. | |
41 | VMS has non-numeric inodes. */ | |
42 | #ifdef VMS | |
43 | #define INO_T_EQ(a, b) (!memcmp (&(a), &(b), sizeof (a))) | |
44 | #elif (defined _WIN32 && ! defined (_UWIN)) || defined __MSDOS__ | |
45 | #define INO_T_EQ(a, b) 0 | |
46 | #else | |
47 | #define INO_T_EQ(a, b) ((a) == (b)) | |
48 | #endif | |
49 | ||
4a58aab6 | 50 | /* Internal structures and prototypes. */ |
6de1e2a9 | 51 | |
4a58aab6 NB |
52 | /* A `struct pending_option' remembers one -D, -A, -U, -include, or |
53 | -imacros switch. */ | |
40eac643 | 54 | |
8be1ddca | 55 | typedef void (* cl_directive_handler) PARAMS ((cpp_reader *, const char *)); |
0b22d65c | 56 | struct pending_option |
6de1e2a9 | 57 | { |
0b22d65c | 58 | struct pending_option *next; |
7ceb3598 | 59 | const char *arg; |
40eac643 | 60 | cl_directive_handler handler; |
6de1e2a9 | 61 | }; |
0b22d65c | 62 | |
88ae23e7 ZW |
63 | /* The `pending' structure accumulates all the options that are not |
64 | actually processed until we hit cpp_start_read. It consists of | |
65 | several lists, one for each type of option. We keep both head and | |
4a58aab6 | 66 | tail pointers for quick insertion. */ |
88ae23e7 ZW |
67 | struct cpp_pending |
68 | { | |
40eac643 | 69 | struct pending_option *directive_head, *directive_tail; |
88ae23e7 ZW |
70 | |
71 | struct file_name_list *quote_head, *quote_tail; | |
72 | struct file_name_list *brack_head, *brack_tail; | |
73 | struct file_name_list *systm_head, *systm_tail; | |
74 | struct file_name_list *after_head, *after_tail; | |
75 | ||
76 | struct pending_option *imacros_head, *imacros_tail; | |
77 | struct pending_option *include_head, *include_tail; | |
78 | }; | |
79 | ||
0b22d65c ZW |
80 | #ifdef __STDC__ |
81 | #define APPEND(pend, list, elt) \ | |
82 | do { if (!(pend)->list##_head) (pend)->list##_head = (elt); \ | |
83 | else (pend)->list##_tail->next = (elt); \ | |
84 | (pend)->list##_tail = (elt); \ | |
85 | } while (0) | |
86 | #else | |
87 | #define APPEND(pend, list, elt) \ | |
88 | do { if (!(pend)->list/**/_head) (pend)->list/**/_head = (elt); \ | |
89 | else (pend)->list/**/_tail->next = (elt); \ | |
90 | (pend)->list/**/_tail = (elt); \ | |
91 | } while (0) | |
92 | #endif | |
6de1e2a9 | 93 | |
6de1e2a9 | 94 | static void print_help PARAMS ((void)); |
0b22d65c | 95 | static void path_include PARAMS ((cpp_reader *, |
0b22d65c | 96 | char *, int)); |
674c3b40 | 97 | static void init_library PARAMS ((void)); |
7ca3d2b1 | 98 | static void init_builtins PARAMS ((cpp_reader *)); |
0b22d65c | 99 | static void append_include_chain PARAMS ((cpp_reader *, |
c45da1ca | 100 | char *, int, int)); |
dd69c71b NB |
101 | struct file_name_list * remove_dup_dir PARAMS ((cpp_reader *, |
102 | struct file_name_list *)); | |
103 | struct file_name_list * remove_dup_dirs PARAMS ((cpp_reader *, | |
104 | struct file_name_list *)); | |
ae79697b | 105 | static void merge_include_chains PARAMS ((cpp_reader *)); |
4a58aab6 NB |
106 | static void do_includes PARAMS ((cpp_reader *, |
107 | struct pending_option *, | |
108 | int)); | |
dd07b884 | 109 | static void set_lang PARAMS ((cpp_reader *, enum c_lang)); |
7ca3d2b1 NB |
110 | static void init_dependency_output PARAMS ((cpp_reader *)); |
111 | static void init_standard_includes PARAMS ((cpp_reader *)); | |
2c0accc9 | 112 | static void new_pending_directive PARAMS ((struct cpp_pending *, |
40eac643 NB |
113 | const char *, |
114 | cl_directive_handler)); | |
7ca3d2b1 | 115 | static void output_deps PARAMS ((cpp_reader *)); |
e23c0ba3 | 116 | static int parse_option PARAMS ((const char *)); |
6de1e2a9 | 117 | |
4a58aab6 | 118 | /* Fourth argument to append_include_chain: chain to use. */ |
0b22d65c | 119 | enum { QUOTE = 0, BRACKET, SYSTEM, AFTER }; |
6de1e2a9 | 120 | |
61d0346d NB |
121 | /* If we have designated initializers (GCC >2.7) these tables can be |
122 | initialized, constant data. Otherwise, they have to be filled in at | |
12cf91fe | 123 | runtime. */ |
61d0346d | 124 | #if HAVE_DESIGNATED_INITIALIZERS |
a9ae4483 | 125 | |
4a58aab6 | 126 | #define init_trigraph_map() /* Nothing. */ |
61d0346d NB |
127 | #define TRIGRAPH_MAP \ |
128 | __extension__ const U_CHAR _cpp_trigraph_map[UCHAR_MAX + 1] = { | |
129 | ||
a9ae4483 | 130 | #define END }; |
455d2586 | 131 | #define s(p, v) [p] = v, |
61d0346d | 132 | |
a9ae4483 | 133 | #else |
61d0346d | 134 | |
61d0346d NB |
135 | #define TRIGRAPH_MAP U_CHAR _cpp_trigraph_map[UCHAR_MAX + 1] = { 0 }; \ |
136 | static void init_trigraph_map PARAMS ((void)) { \ | |
137 | unsigned char *x = _cpp_trigraph_map; | |
138 | ||
ae79697b | 139 | #define END } |
455d2586 | 140 | #define s(p, v) x[p] = v; |
61d0346d | 141 | |
a9ae4483 | 142 | #endif |
6de1e2a9 | 143 | |
61d0346d NB |
144 | TRIGRAPH_MAP |
145 | s('=', '#') s(')', ']') s('!', '|') | |
146 | s('(', '[') s('\'', '^') s('>', '}') | |
147 | s('/', '\\') s('<', '{') s('-', '~') | |
148 | END | |
149 | ||
a9ae4483 | 150 | #undef s |
455d2586 | 151 | #undef END |
61d0346d | 152 | #undef TRIGRAPH_MAP |
6de1e2a9 ZW |
153 | |
154 | /* Given a colon-separated list of file names PATH, | |
155 | add all the names to the search path for include files. */ | |
156 | ||
157 | static void | |
e33f6253 | 158 | path_include (pfile, list, path) |
6de1e2a9 | 159 | cpp_reader *pfile; |
0b22d65c ZW |
160 | char *list; |
161 | int path; | |
6de1e2a9 | 162 | { |
0b22d65c | 163 | char *p, *q, *name; |
6de1e2a9 | 164 | |
0b22d65c | 165 | p = list; |
6de1e2a9 | 166 | |
0b22d65c ZW |
167 | do |
168 | { | |
6de1e2a9 | 169 | /* Find the end of this name. */ |
0b22d65c | 170 | q = p; |
6de1e2a9 | 171 | while (*q != 0 && *q != PATH_SEPARATOR) q++; |
0b22d65c ZW |
172 | if (q == p) |
173 | { | |
174 | /* An empty name in the path stands for the current directory. */ | |
175 | name = (char *) xmalloc (2); | |
176 | name[0] = '.'; | |
177 | name[1] = 0; | |
178 | } | |
179 | else | |
180 | { | |
181 | /* Otherwise use the directory that is named. */ | |
182 | name = (char *) xmalloc (q - p + 1); | |
183 | memcpy (name, p, q - p); | |
184 | name[q - p] = 0; | |
185 | } | |
6de1e2a9 | 186 | |
e33f6253 | 187 | append_include_chain (pfile, name, path, 0); |
6de1e2a9 ZW |
188 | |
189 | /* Advance past this name. */ | |
0b22d65c | 190 | if (*q == 0) |
6de1e2a9 | 191 | break; |
0b22d65c ZW |
192 | p = q + 1; |
193 | } | |
194 | while (1); | |
195 | } | |
196 | ||
0b22d65c ZW |
197 | /* Append DIR to include path PATH. DIR must be permanently allocated |
198 | and writable. */ | |
199 | static void | |
e33f6253 | 200 | append_include_chain (pfile, dir, path, cxx_aware) |
0b22d65c | 201 | cpp_reader *pfile; |
0b22d65c ZW |
202 | char *dir; |
203 | int path; | |
c45da1ca | 204 | int cxx_aware; |
0b22d65c | 205 | { |
e33f6253 | 206 | struct cpp_pending *pend = CPP_OPTION (pfile, pending); |
0b22d65c ZW |
207 | struct file_name_list *new; |
208 | struct stat st; | |
209 | unsigned int len; | |
210 | ||
b0699dad | 211 | _cpp_simplify_pathname (dir); |
0b22d65c ZW |
212 | if (stat (dir, &st)) |
213 | { | |
214 | /* Dirs that don't exist are silently ignored. */ | |
215 | if (errno != ENOENT) | |
c1212d2f | 216 | cpp_notice_from_errno (pfile, dir); |
ae79697b | 217 | else if (CPP_OPTION (pfile, verbose)) |
041c3194 | 218 | fprintf (stderr, _("ignoring nonexistent directory \"%s\"\n"), dir); |
0b22d65c ZW |
219 | return; |
220 | } | |
221 | ||
222 | if (!S_ISDIR (st.st_mode)) | |
223 | { | |
c1212d2f | 224 | cpp_notice (pfile, "%s: Not a directory", dir); |
0b22d65c ZW |
225 | return; |
226 | } | |
227 | ||
228 | len = strlen (dir); | |
229 | if (len > pfile->max_include_len) | |
230 | pfile->max_include_len = len; | |
ae79697b | 231 | |
7ceb3598 | 232 | new = (struct file_name_list *) xmalloc (sizeof (struct file_name_list)); |
0b22d65c ZW |
233 | new->name = dir; |
234 | new->nlen = len; | |
235 | new->ino = st.st_ino; | |
236 | new->dev = st.st_dev; | |
c45da1ca ZW |
237 | if (path == SYSTEM) |
238 | new->sysp = cxx_aware ? 1 : 2; | |
239 | else | |
240 | new->sysp = 0; | |
0b22d65c | 241 | new->name_map = NULL; |
503cb436 DB |
242 | new->next = NULL; |
243 | new->alloc = NULL; | |
0b22d65c ZW |
244 | |
245 | switch (path) | |
246 | { | |
247 | case QUOTE: APPEND (pend, quote, new); break; | |
248 | case BRACKET: APPEND (pend, brack, new); break; | |
249 | case SYSTEM: APPEND (pend, systm, new); break; | |
250 | case AFTER: APPEND (pend, after, new); break; | |
6de1e2a9 ZW |
251 | } |
252 | } | |
253 | ||
dd69c71b NB |
254 | /* Handle a duplicated include path. PREV is the link in the chain |
255 | before the duplicate. The duplicate is removed from the chain and | |
256 | freed. Returns PREV. */ | |
257 | struct file_name_list * | |
258 | remove_dup_dir (pfile, prev) | |
259 | cpp_reader *pfile; | |
260 | struct file_name_list *prev; | |
261 | { | |
262 | struct file_name_list *cur = prev->next; | |
263 | ||
264 | if (CPP_OPTION (pfile, verbose)) | |
265 | fprintf (stderr, _("ignoring duplicate directory \"%s\"\n"), cur->name); | |
266 | ||
267 | prev->next = cur->next; | |
268 | free (cur->name); | |
269 | free (cur); | |
270 | ||
271 | return prev; | |
272 | } | |
273 | ||
274 | /* Remove duplicate directories from a chain. Returns the tail of the | |
275 | chain, or NULL if the chain is empty. This algorithm is quadratic | |
276 | in the number of -I switches, which is acceptable since there | |
277 | aren't usually that many of them. */ | |
278 | struct file_name_list * | |
279 | remove_dup_dirs (pfile, head) | |
280 | cpp_reader *pfile; | |
281 | struct file_name_list *head; | |
282 | { | |
283 | struct file_name_list *prev = NULL, *cur, *other; | |
284 | ||
285 | for (cur = head; cur; cur = cur->next) | |
286 | { | |
287 | for (other = head; other != cur; other = other->next) | |
288 | if (INO_T_EQ (cur->ino, other->ino) && cur->dev == other->dev) | |
289 | { | |
290 | cur = remove_dup_dir (pfile, prev); | |
291 | break; | |
292 | } | |
293 | prev = cur; | |
294 | } | |
295 | ||
296 | return prev; | |
297 | } | |
298 | ||
88ae23e7 ZW |
299 | /* Merge the four include chains together in the order quote, bracket, |
300 | system, after. Remove duplicate dirs (as determined by | |
301 | INO_T_EQ()). The system_include and after_include chains are never | |
302 | referred to again after this function; all access is through the | |
303 | bracket_include path. | |
304 | ||
305 | For the future: Check if the directory is empty (but | |
4a58aab6 | 306 | how?) and possibly preload the include hash. */ |
88ae23e7 ZW |
307 | |
308 | static void | |
ae79697b ZW |
309 | merge_include_chains (pfile) |
310 | cpp_reader *pfile; | |
88ae23e7 | 311 | { |
dd69c71b | 312 | struct file_name_list *quote, *brack, *systm, *qtail; |
88ae23e7 | 313 | |
ae79697b | 314 | struct cpp_pending *pend = CPP_OPTION (pfile, pending); |
88ae23e7 | 315 | |
ae79697b ZW |
316 | quote = pend->quote_head; |
317 | brack = pend->brack_head; | |
318 | systm = pend->systm_head; | |
dd69c71b | 319 | qtail = pend->quote_tail; |
88ae23e7 | 320 | |
dd69c71b NB |
321 | /* Paste together bracket, system, and after include chains. */ |
322 | if (systm) | |
323 | pend->systm_tail->next = pend->after_head; | |
88ae23e7 | 324 | else |
dd69c71b NB |
325 | systm = pend->after_head; |
326 | ||
327 | if (brack) | |
328 | pend->brack_tail->next = systm; | |
88ae23e7 ZW |
329 | else |
330 | brack = systm; | |
331 | ||
dd69c71b NB |
332 | /* This is a bit tricky. First we drop dupes from the quote-include |
333 | list. Then we drop dupes from the bracket-include list. | |
334 | Finally, if qtail and brack are the same directory, we cut out | |
335 | brack. | |
88ae23e7 ZW |
336 | |
337 | We can't just merge the lists and then uniquify them because | |
338 | then we may lose directories from the <> search path that should | |
339 | be there; consider -Ifoo -Ibar -I- -Ifoo -Iquux. It is however | |
340 | safe to treat -Ibar -Ifoo -I- -Ifoo -Iquux as if written | |
dd69c71b | 341 | -Ibar -I- -Ifoo -Iquux. */ |
88ae23e7 | 342 | |
dd69c71b NB |
343 | remove_dup_dirs (pfile, brack); |
344 | qtail = remove_dup_dirs (pfile, quote); | |
88ae23e7 ZW |
345 | |
346 | if (quote) | |
347 | { | |
dd69c71b NB |
348 | qtail->next = brack; |
349 | ||
350 | /* If brack == qtail, remove brack as it's simpler. */ | |
88ae23e7 | 351 | if (INO_T_EQ (qtail->ino, brack->ino) && qtail->dev == brack->dev) |
dd69c71b | 352 | brack = remove_dup_dir (pfile, qtail); |
88ae23e7 ZW |
353 | } |
354 | else | |
355 | quote = brack; | |
356 | ||
ae79697b ZW |
357 | CPP_OPTION (pfile, quote_include) = quote; |
358 | CPP_OPTION (pfile, bracket_include) = brack; | |
88ae23e7 ZW |
359 | } |
360 | ||
dd07b884 NB |
361 | /* Sets internal flags correctly for a given language, and defines |
362 | macros if necessary. */ | |
363 | static void | |
364 | set_lang (pfile, lang) | |
365 | cpp_reader *pfile; | |
366 | enum c_lang lang; | |
367 | { | |
368 | struct cpp_pending *pend = CPP_OPTION (pfile, pending); | |
369 | ||
bdb05a7b NB |
370 | /* Defaults. */ |
371 | CPP_OPTION (pfile, lang) = lang; | |
dd07b884 NB |
372 | CPP_OPTION (pfile, objc) = 0; |
373 | CPP_OPTION (pfile, cplusplus) = 0; | |
bdb05a7b | 374 | CPP_OPTION (pfile, extended_numbers) = 1; /* Allowed in GNU C and C99. */ |
dd07b884 NB |
375 | |
376 | switch (lang) | |
377 | { | |
378 | /* GNU C. */ | |
379 | case CLK_GNUC99: | |
380 | CPP_OPTION (pfile, trigraphs) = 0; | |
381 | CPP_OPTION (pfile, dollars_in_ident) = 1; | |
382 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
383 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 NB |
384 | CPP_OPTION (pfile, c99) = 1; |
385 | new_pending_directive (pend, "__STDC_VERSION__=199901L", cpp_define); | |
386 | break; | |
387 | case CLK_GNUC89: | |
388 | CPP_OPTION (pfile, trigraphs) = 0; | |
389 | CPP_OPTION (pfile, dollars_in_ident) = 1; | |
390 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
391 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 NB |
392 | CPP_OPTION (pfile, c99) = 0; |
393 | break; | |
394 | ||
395 | /* ISO C. */ | |
396 | case CLK_STDC94: | |
397 | new_pending_directive (pend, "__STDC_VERSION__=199409L", cpp_define); | |
398 | case CLK_STDC89: | |
399 | CPP_OPTION (pfile, trigraphs) = 1; | |
400 | CPP_OPTION (pfile, dollars_in_ident) = 0; | |
401 | CPP_OPTION (pfile, cplusplus_comments) = 0; | |
402 | CPP_OPTION (pfile, digraphs) = lang == CLK_STDC94; | |
dd07b884 | 403 | CPP_OPTION (pfile, c99) = 0; |
bdb05a7b | 404 | CPP_OPTION (pfile, extended_numbers) = 0; |
dd07b884 NB |
405 | new_pending_directive (pend, "__STRICT_ANSI__", cpp_define); |
406 | break; | |
407 | case CLK_STDC99: | |
408 | CPP_OPTION (pfile, trigraphs) = 1; | |
409 | CPP_OPTION (pfile, dollars_in_ident) = 0; | |
410 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
411 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 NB |
412 | CPP_OPTION (pfile, c99) = 1; |
413 | new_pending_directive (pend, "__STRICT_ANSI__", cpp_define); | |
414 | new_pending_directive (pend, "__STDC_VERSION__=199901L", cpp_define); | |
415 | break; | |
416 | ||
417 | /* Objective C. */ | |
418 | case CLK_OBJCXX: | |
419 | new_pending_directive (pend, "__cplusplus", cpp_define); | |
420 | CPP_OPTION (pfile, cplusplus) = 1; | |
421 | case CLK_OBJC: | |
422 | CPP_OPTION (pfile, trigraphs) = 0; | |
423 | CPP_OPTION (pfile, dollars_in_ident) = 1; | |
424 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
425 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 NB |
426 | CPP_OPTION (pfile, c99) = 0; |
427 | CPP_OPTION (pfile, objc) = 1; | |
428 | new_pending_directive (pend, "__OBJC__", cpp_define); | |
429 | break; | |
430 | ||
431 | /* C++. */ | |
432 | case CLK_GNUCXX: | |
433 | case CLK_CXX98: | |
434 | CPP_OPTION (pfile, cplusplus) = 1; | |
435 | CPP_OPTION (pfile, trigraphs) = lang == CLK_CXX98; | |
436 | CPP_OPTION (pfile, dollars_in_ident) = lang == CLK_GNUCXX; | |
437 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
438 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 NB |
439 | CPP_OPTION (pfile, c99) = 0; |
440 | new_pending_directive (pend, "__cplusplus", cpp_define); | |
441 | break; | |
442 | ||
443 | /* Assembler. */ | |
444 | case CLK_ASM: | |
445 | CPP_OPTION (pfile, trigraphs) = 0; | |
446 | CPP_OPTION (pfile, dollars_in_ident) = 0; /* Maybe not? */ | |
447 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
448 | CPP_OPTION (pfile, digraphs) = 0; | |
dd07b884 | 449 | CPP_OPTION (pfile, c99) = 0; |
dd07b884 NB |
450 | new_pending_directive (pend, "__ASSEMBLER__", cpp_define); |
451 | break; | |
452 | } | |
453 | } | |
454 | ||
7ca3d2b1 NB |
455 | #ifdef HOST_EBCDIC |
456 | static int opt_comp PARAMS ((const void *, const void *)); | |
457 | ||
458 | /* Run-time sorting of options array. */ | |
459 | static int | |
460 | opt_comp (p1, p2) | |
461 | const void *p1, *p2; | |
462 | { | |
463 | return strcmp (((struct cl_option *) p1)->opt_text, | |
464 | ((struct cl_option *) p2)->opt_text); | |
465 | } | |
466 | #endif | |
cf44ea52 | 467 | |
7ca3d2b1 NB |
468 | /* init initializes library global state. It might not need to |
469 | do anything depending on the platform and compiler. */ | |
cf44ea52 NB |
470 | |
471 | static void | |
674c3b40 | 472 | init_library () |
cf44ea52 | 473 | { |
7ca3d2b1 NB |
474 | static int initialized = 0; |
475 | ||
476 | if (! initialized) | |
477 | { | |
478 | initialized = 1; | |
479 | ||
cf44ea52 | 480 | #ifdef HOST_EBCDIC |
7ca3d2b1 NB |
481 | /* For non-ASCII hosts, the cl_options array needs to be sorted at |
482 | runtime. */ | |
483 | qsort (cl_options, N_OPTS, sizeof (struct cl_option), opt_comp); | |
cf44ea52 NB |
484 | #endif |
485 | ||
7ca3d2b1 NB |
486 | /* Set up the trigraph map. This doesn't need to do anything if |
487 | we were compiled with a compiler that supports C99 designated | |
488 | initializers. */ | |
489 | init_trigraph_map (); | |
490 | } | |
cf44ea52 NB |
491 | } |
492 | ||
6de1e2a9 | 493 | /* Initialize a cpp_reader structure. */ |
cf44ea52 NB |
494 | cpp_reader * |
495 | cpp_create_reader (lang) | |
dd07b884 | 496 | enum c_lang lang; |
6de1e2a9 | 497 | { |
93c80368 | 498 | struct spec_nodes *s; |
7ca3d2b1 | 499 | cpp_reader *pfile; |
93c80368 | 500 | |
cf44ea52 | 501 | /* Initialise this instance of the library if it hasn't been already. */ |
674c3b40 | 502 | init_library (); |
7ca3d2b1 NB |
503 | |
504 | pfile = (cpp_reader *) xcalloc (1, sizeof (cpp_reader)); | |
93c80368 | 505 | |
ae79697b ZW |
506 | CPP_OPTION (pfile, warn_import) = 1; |
507 | CPP_OPTION (pfile, discard_comments) = 1; | |
508 | CPP_OPTION (pfile, show_column) = 1; | |
6ab3e7dd | 509 | CPP_OPTION (pfile, tabstop) = 8; |
be768055 | 510 | CPP_OPTION (pfile, operator_names) = 1; |
ae79697b ZW |
511 | |
512 | CPP_OPTION (pfile, pending) = | |
513 | (struct cpp_pending *) xcalloc (1, sizeof (struct cpp_pending)); | |
514 | ||
056487e7 NB |
515 | /* After creating pfile->pending. */ |
516 | set_lang (pfile, lang); | |
517 | ||
f7114e17 NB |
518 | /* It's simplest to just create this struct whether or not it will |
519 | be needed. */ | |
520 | pfile->deps = deps_init (); | |
521 | ||
4a58aab6 | 522 | /* Initialize lexer state. */ |
93c80368 NB |
523 | pfile->state.save_comments = ! CPP_OPTION (pfile, discard_comments); |
524 | ||
525 | /* Indicate date and time not yet calculated. */ | |
526 | pfile->date.type = CPP_EOF; | |
527 | ||
528 | /* Initialise the base context. */ | |
529 | pfile->context = &pfile->base_context; | |
530 | pfile->base_context.macro = 0; | |
531 | pfile->base_context.prev = pfile->base_context.next = 0; | |
532 | ||
533 | /* Identifier pool initially 8K. Unaligned, permanent pool. */ | |
534 | _cpp_init_pool (&pfile->ident_pool, 8 * 1024, 1, 0); | |
535 | ||
93c80368 NB |
536 | /* Argument pool initially 8K. Aligned, temporary pool. */ |
537 | _cpp_init_pool (&pfile->argument_pool, 8 * 1024, 0, 1); | |
538 | ||
539 | /* Macro pool initially 8K. Aligned, permanent pool. */ | |
540 | _cpp_init_pool (&pfile->macro_pool, 8 * 1024, 0, 0); | |
3cb553b4 | 541 | |
93c80368 | 542 | _cpp_init_hashtable (pfile); |
bfb9dc7f | 543 | _cpp_init_stacks (pfile); |
c71f835b | 544 | _cpp_init_includes (pfile); |
58fea6af | 545 | _cpp_init_internal_pragmas (pfile); |
6de1e2a9 | 546 | |
93c80368 NB |
547 | /* Initialize the special nodes. */ |
548 | s = &pfile->spec_nodes; | |
549 | s->n_L = cpp_lookup (pfile, DSC("L")); | |
550 | s->n_defined = cpp_lookup (pfile, DSC("defined")); | |
a5c3cccd | 551 | s->n__Pragma = cpp_lookup (pfile, DSC("_Pragma")); |
93c80368 NB |
552 | s->n__STRICT_ANSI__ = cpp_lookup (pfile, DSC("__STRICT_ANSI__")); |
553 | s->n__CHAR_UNSIGNED__ = cpp_lookup (pfile, DSC("__CHAR_UNSIGNED__")); | |
554 | s->n__VA_ARGS__ = cpp_lookup (pfile, DSC("__VA_ARGS__")); | |
555 | s->n__VA_ARGS__->flags |= NODE_DIAGNOSTIC; | |
cf44ea52 NB |
556 | |
557 | return pfile; | |
f2d5f0cc ZW |
558 | } |
559 | ||
6de1e2a9 ZW |
560 | /* Free resources used by PFILE. |
561 | This is the cpp_reader 'finalizer' or 'destructor' (in C++ terminology). */ | |
562 | void | |
563 | cpp_cleanup (pfile) | |
564 | cpp_reader *pfile; | |
565 | { | |
93c80368 NB |
566 | struct file_name_list *dir, *dirn; |
567 | cpp_context *context, *contextn; | |
709e9e50 | 568 | |
38b24ee2 | 569 | while (CPP_BUFFER (pfile) != NULL) |
6de1e2a9 ZW |
570 | cpp_pop_buffer (pfile); |
571 | ||
93c80368 NB |
572 | if (pfile->macro_buffer) |
573 | free ((PTR) pfile->macro_buffer); | |
574 | ||
f7114e17 | 575 | deps_free (pfile->deps); |
49e6c08e | 576 | |
bfb9dc7f | 577 | _cpp_cleanup_includes (pfile); |
c71f835b | 578 | _cpp_cleanup_stacks (pfile); |
93c80368 NB |
579 | _cpp_cleanup_hashtable (pfile); |
580 | ||
581 | _cpp_free_lookaheads (pfile); | |
709e9e50 | 582 | |
93c80368 | 583 | _cpp_free_pool (&pfile->ident_pool); |
93c80368 NB |
584 | _cpp_free_pool (&pfile->macro_pool); |
585 | _cpp_free_pool (&pfile->argument_pool); | |
586 | ||
587 | for (dir = CPP_OPTION (pfile, quote_include); dir; dir = dirn) | |
709e9e50 | 588 | { |
93c80368 | 589 | dirn = dir->next; |
709e9e50 NB |
590 | free (dir->name); |
591 | free (dir); | |
592 | } | |
93c80368 NB |
593 | |
594 | for (context = pfile->base_context.next; context; context = contextn) | |
595 | { | |
596 | contextn = context->next; | |
597 | free (context); | |
598 | } | |
6de1e2a9 ZW |
599 | } |
600 | ||
601 | ||
93c80368 NB |
602 | /* This structure defines one built-in identifier. A node will be |
603 | entered in the hash table under the name NAME, with value VALUE (if | |
604 | any). If flags has OPERATOR, the node's operator field is used; if | |
605 | flags has BUILTIN the node's builtin field is used. | |
92936ecf ZW |
606 | |
607 | Two values are not compile time constants, so we tag | |
041c3194 | 608 | them in the FLAGS field instead: |
8c389f84 ZW |
609 | VERS value is the global version_string, quoted |
610 | ULP value is the global user_label_prefix | |
92936ecf | 611 | |
93c80368 | 612 | Also, macros with CPLUS set in the flags field are entered only for C++. */ |
a9ae4483 ZW |
613 | |
614 | struct builtin | |
615 | { | |
12cf91fe | 616 | const U_CHAR *name; |
041c3194 | 617 | const char *value; |
93c80368 NB |
618 | unsigned char builtin; |
619 | unsigned char operator; | |
a9ae4483 | 620 | unsigned short flags; |
93c80368 | 621 | unsigned short len; |
a9ae4483 | 622 | }; |
93c80368 NB |
623 | #define VERS 0x01 |
624 | #define ULP 0x02 | |
625 | #define CPLUS 0x04 | |
626 | #define BUILTIN 0x08 | |
627 | #define OPERATOR 0x10 | |
628 | ||
629 | #define B(n, t) { U n, 0, t, 0, BUILTIN, sizeof n - 1 } | |
630 | #define C(n, v) { U n, v, 0, 0, 0, sizeof n - 1 } | |
631 | #define X(n, f) { U n, 0, 0, 0, f, sizeof n - 1 } | |
632 | #define O(n, c, f) { U n, 0, 0, c, OPERATOR | f, sizeof n - 1 } | |
a9ae4483 | 633 | static const struct builtin builtin_array[] = |
6de1e2a9 | 634 | { |
93c80368 NB |
635 | B("__TIME__", BT_TIME), |
636 | B("__DATE__", BT_DATE), | |
637 | B("__FILE__", BT_FILE), | |
638 | B("__BASE_FILE__", BT_BASE_FILE), | |
639 | B("__LINE__", BT_SPECLINE), | |
640 | B("__INCLUDE_LEVEL__", BT_INCLUDE_LEVEL), | |
641 | B("__STDC__", BT_STDC), | |
12cf91fe | 642 | |
041c3194 ZW |
643 | X("__VERSION__", VERS), |
644 | X("__USER_LABEL_PREFIX__", ULP), | |
12cf91fe ZW |
645 | C("__REGISTER_PREFIX__", REGISTER_PREFIX), |
646 | C("__HAVE_BUILTIN_SETJMP__", "1"), | |
6de1e2a9 | 647 | #ifndef NO_BUILTIN_SIZE_TYPE |
12cf91fe | 648 | C("__SIZE_TYPE__", SIZE_TYPE), |
6de1e2a9 ZW |
649 | #endif |
650 | #ifndef NO_BUILTIN_PTRDIFF_TYPE | |
12cf91fe | 651 | C("__PTRDIFF_TYPE__", PTRDIFF_TYPE), |
6de1e2a9 | 652 | #endif |
0209c340 | 653 | #ifndef NO_BUILTIN_WCHAR_TYPE |
12cf91fe | 654 | C("__WCHAR_TYPE__", WCHAR_TYPE), |
0209c340 | 655 | #endif |
d6777972 JM |
656 | #ifndef NO_BUILTIN_WINT_TYPE |
657 | C("__WINT_TYPE__", WINT_TYPE), | |
658 | #endif | |
92936ecf ZW |
659 | |
660 | /* Named operators known to the preprocessor. These cannot be #defined | |
661 | and always have their stated meaning. They are treated like normal | |
93c80368 | 662 | identifiers except for the type code and the meaning. Most of them |
92936ecf | 663 | are only for C++ (but see iso646.h). */ |
92936ecf ZW |
664 | O("and", CPP_AND_AND, CPLUS), |
665 | O("and_eq", CPP_AND_EQ, CPLUS), | |
666 | O("bitand", CPP_AND, CPLUS), | |
667 | O("bitor", CPP_OR, CPLUS), | |
668 | O("compl", CPP_COMPL, CPLUS), | |
669 | O("not", CPP_NOT, CPLUS), | |
670 | O("not_eq", CPP_NOT_EQ, CPLUS), | |
671 | O("or", CPP_OR_OR, CPLUS), | |
672 | O("or_eq", CPP_OR_EQ, CPLUS), | |
673 | O("xor", CPP_XOR, CPLUS), | |
93c80368 | 674 | O("xor_eq", CPP_XOR_EQ, CPLUS) |
a9ae4483 | 675 | }; |
12cf91fe ZW |
676 | #undef B |
677 | #undef C | |
678 | #undef X | |
be768055 | 679 | #undef O |
8c389f84 ZW |
680 | #define builtin_array_end \ |
681 | builtin_array + sizeof(builtin_array)/sizeof(struct builtin) | |
a9ae4483 ZW |
682 | |
683 | /* Subroutine of cpp_start_read; reads the builtins table above and | |
684 | enters the macros into the hash table. */ | |
a9ae4483 | 685 | static void |
7ca3d2b1 | 686 | init_builtins (pfile) |
a9ae4483 ZW |
687 | cpp_reader *pfile; |
688 | { | |
a9ae4483 | 689 | const struct builtin *b; |
771c4df3 | 690 | |
8c389f84 | 691 | for(b = builtin_array; b < builtin_array_end; b++) |
6de1e2a9 | 692 | { |
93c80368 | 693 | if ((b->flags & CPLUS) && ! CPP_OPTION (pfile, cplusplus)) |
92936ecf ZW |
694 | continue; |
695 | ||
be768055 JJ |
696 | if ((b->flags & OPERATOR) && ! CPP_OPTION (pfile, operator_names)) |
697 | continue; | |
698 | ||
93c80368 NB |
699 | if (b->flags & (OPERATOR | BUILTIN)) |
700 | { | |
701 | cpp_hashnode *hp = cpp_lookup (pfile, b->name, b->len); | |
702 | if (b->flags & OPERATOR) | |
703 | { | |
704 | hp->flags |= NODE_OPERATOR; | |
705 | hp->value.operator = b->operator; | |
706 | } | |
707 | else | |
708 | { | |
709 | hp->type = NT_MACRO; | |
710 | hp->flags |= NODE_BUILTIN; | |
711 | hp->value.builtin = b->builtin; | |
712 | } | |
713 | } | |
714 | else /* A standard macro of some kind. */ | |
8c389f84 | 715 | { |
041c3194 ZW |
716 | const char *val; |
717 | char *str; | |
718 | ||
719 | if (b->flags & VERS) | |
720 | { | |
2c8f0515 ZW |
721 | /* Allocate enough space for 'name "value"\n\0'. */ |
722 | str = alloca (b->len + strlen (version_string) + 5); | |
723 | sprintf (str, "%s \"%s\"\n", b->name, version_string); | |
041c3194 ZW |
724 | } |
725 | else | |
726 | { | |
727 | if (b->flags & ULP) | |
771c4df3 | 728 | val = CPP_OPTION (pfile, user_label_prefix); |
041c3194 ZW |
729 | else |
730 | val = b->value; | |
731 | ||
2c8f0515 ZW |
732 | /* Allocate enough space for "name value\n\0". */ |
733 | str = alloca (b->len + strlen (val) + 3); | |
734 | sprintf(str, "%s %s\n", b->name, val); | |
041c3194 | 735 | } |
c154ba66 | 736 | |
2c8f0515 | 737 | _cpp_define_builtin (pfile, str); |
8c389f84 | 738 | } |
6de1e2a9 ZW |
739 | } |
740 | } | |
93c80368 NB |
741 | #undef BUILTIN |
742 | #undef OPERATOR | |
6feb7728 | 743 | #undef VERS |
a9ae4483 | 744 | #undef ULP |
93c80368 | 745 | #undef CPLUS |
041c3194 | 746 | #undef builtin_array_end |
6de1e2a9 | 747 | |
c45da1ca ZW |
748 | /* And another subroutine. This one sets up the standard include path. */ |
749 | static void | |
7ca3d2b1 | 750 | init_standard_includes (pfile) |
c45da1ca ZW |
751 | cpp_reader *pfile; |
752 | { | |
c45da1ca | 753 | char *path; |
455d2586 | 754 | const struct default_include *p; |
ae79697b | 755 | const char *specd_prefix = CPP_OPTION (pfile, include_prefix); |
c45da1ca ZW |
756 | |
757 | /* Several environment variables may add to the include search path. | |
758 | CPATH specifies an additional list of directories to be searched | |
759 | as if specified with -I, while C_INCLUDE_PATH, CPLUS_INCLUDE_PATH, | |
760 | etc. specify an additional list of directories to be searched as | |
761 | if specified with -isystem, for the language indicated. */ | |
762 | ||
763 | GET_ENV_PATH_LIST (path, "CPATH"); | |
764 | if (path != 0 && *path != 0) | |
e33f6253 | 765 | path_include (pfile, path, BRACKET); |
c45da1ca | 766 | |
ae79697b | 767 | switch ((CPP_OPTION (pfile, objc) << 1) + CPP_OPTION (pfile, cplusplus)) |
c45da1ca ZW |
768 | { |
769 | case 0: | |
770 | GET_ENV_PATH_LIST (path, "C_INCLUDE_PATH"); | |
771 | break; | |
772 | case 1: | |
773 | GET_ENV_PATH_LIST (path, "CPLUS_INCLUDE_PATH"); | |
774 | break; | |
775 | case 2: | |
776 | GET_ENV_PATH_LIST (path, "OBJC_INCLUDE_PATH"); | |
777 | break; | |
778 | case 3: | |
779 | GET_ENV_PATH_LIST (path, "OBJCPLUS_INCLUDE_PATH"); | |
780 | break; | |
781 | } | |
782 | if (path != 0 && *path != 0) | |
e33f6253 | 783 | path_include (pfile, path, SYSTEM); |
c45da1ca ZW |
784 | |
785 | /* Search "translated" versions of GNU directories. | |
786 | These have /usr/local/lib/gcc... replaced by specd_prefix. */ | |
60893f43 | 787 | if (specd_prefix != 0 && cpp_GCC_INCLUDE_DIR_len) |
c45da1ca | 788 | { |
c45da1ca ZW |
789 | /* Remove the `include' from /usr/local/lib/gcc.../include. |
790 | GCC_INCLUDE_DIR will always end in /include. */ | |
60893f43 ZW |
791 | int default_len = cpp_GCC_INCLUDE_DIR_len; |
792 | char *default_prefix = (char *) alloca (default_len + 1); | |
c45da1ca ZW |
793 | int specd_len = strlen (specd_prefix); |
794 | ||
60893f43 | 795 | memcpy (default_prefix, cpp_GCC_INCLUDE_DIR, default_len); |
c45da1ca ZW |
796 | default_prefix[default_len] = '\0'; |
797 | ||
60893f43 | 798 | for (p = cpp_include_defaults; p->fname; p++) |
c45da1ca ZW |
799 | { |
800 | /* Some standard dirs are only for C++. */ | |
801 | if (!p->cplusplus | |
ae79697b ZW |
802 | || (CPP_OPTION (pfile, cplusplus) |
803 | && !CPP_OPTION (pfile, no_standard_cplusplus_includes))) | |
c45da1ca ZW |
804 | { |
805 | /* Does this dir start with the prefix? */ | |
61d0346d | 806 | if (!memcmp (p->fname, default_prefix, default_len)) |
c45da1ca ZW |
807 | { |
808 | /* Yes; change prefix and add to search list. */ | |
809 | int flen = strlen (p->fname); | |
810 | int this_len = specd_len + flen - default_len; | |
811 | char *str = (char *) xmalloc (this_len + 1); | |
812 | memcpy (str, specd_prefix, specd_len); | |
813 | memcpy (str + specd_len, | |
814 | p->fname + default_len, | |
815 | flen - default_len + 1); | |
816 | ||
e33f6253 | 817 | append_include_chain (pfile, str, SYSTEM, p->cxx_aware); |
c45da1ca ZW |
818 | } |
819 | } | |
820 | } | |
821 | } | |
822 | ||
823 | /* Search ordinary names for GNU include directories. */ | |
60893f43 | 824 | for (p = cpp_include_defaults; p->fname; p++) |
c45da1ca ZW |
825 | { |
826 | /* Some standard dirs are only for C++. */ | |
827 | if (!p->cplusplus | |
ae79697b ZW |
828 | || (CPP_OPTION (pfile, cplusplus) |
829 | && !CPP_OPTION (pfile, no_standard_cplusplus_includes))) | |
c45da1ca | 830 | { |
c45da1ca | 831 | char *str = xstrdup (update_path (p->fname, p->component)); |
e33f6253 | 832 | append_include_chain (pfile, str, SYSTEM, p->cxx_aware); |
c45da1ca ZW |
833 | } |
834 | } | |
835 | } | |
836 | ||
4a58aab6 NB |
837 | /* Handles -imacro and -include from the command line. */ |
838 | static void | |
839 | do_includes (pfile, p, scan) | |
840 | cpp_reader *pfile; | |
841 | struct pending_option *p; | |
842 | int scan; | |
843 | { | |
844 | while (p) | |
845 | { | |
4a58aab6 NB |
846 | struct pending_option *q; |
847 | ||
3fc786a4 NB |
848 | /* Later: maybe update this to use the #include "" search path |
849 | if cpp_read_file fails. */ | |
614c7d37 | 850 | if (_cpp_read_file (pfile, p->arg) && scan) |
8dc4676d | 851 | cpp_scan_buffer_nooutput (pfile, 0); |
4a58aab6 NB |
852 | q = p->next; |
853 | free (p); | |
854 | p = q; | |
855 | } | |
856 | } | |
857 | ||
858 | /* This is called after options have been processed. Check options | |
859 | for consistency, and setup for processing input from the file named | |
860 | FNAME. (Use standard input if FNAME == NULL.) Return 1 on success, | |
861 | 0 on failure. */ | |
6de1e2a9 ZW |
862 | |
863 | int | |
93c80368 | 864 | cpp_start_read (pfile, fname) |
6de1e2a9 | 865 | cpp_reader *pfile; |
7ceb3598 | 866 | const char *fname; |
6de1e2a9 | 867 | { |
0b22d65c | 868 | struct pending_option *p, *q; |
6de1e2a9 | 869 | |
c45da1ca | 870 | /* Set up the include search path now. */ |
ae79697b | 871 | if (! CPP_OPTION (pfile, no_standard_includes)) |
7ca3d2b1 | 872 | init_standard_includes (pfile); |
c45da1ca | 873 | |
ae79697b | 874 | merge_include_chains (pfile); |
c45da1ca ZW |
875 | |
876 | /* With -v, print the list of dirs to search. */ | |
ae79697b | 877 | if (CPP_OPTION (pfile, verbose)) |
c45da1ca ZW |
878 | { |
879 | struct file_name_list *l; | |
880 | fprintf (stderr, _("#include \"...\" search starts here:\n")); | |
ae79697b | 881 | for (l = CPP_OPTION (pfile, quote_include); l; l = l->next) |
c45da1ca | 882 | { |
ae79697b | 883 | if (l == CPP_OPTION (pfile, bracket_include)) |
c45da1ca ZW |
884 | fprintf (stderr, _("#include <...> search starts here:\n")); |
885 | fprintf (stderr, " %s\n", l->name); | |
886 | } | |
887 | fprintf (stderr, _("End of search list.\n")); | |
888 | } | |
889 | ||
ae79697b ZW |
890 | if (CPP_OPTION (pfile, in_fname) == NULL |
891 | || *CPP_OPTION (pfile, in_fname) == 0) | |
6de1e2a9 | 892 | { |
ae79697b ZW |
893 | CPP_OPTION (pfile, in_fname) = fname; |
894 | if (CPP_OPTION (pfile, in_fname) == NULL) | |
895 | CPP_OPTION (pfile, in_fname) = ""; | |
6de1e2a9 | 896 | } |
ae79697b ZW |
897 | if (CPP_OPTION (pfile, out_fname) == NULL) |
898 | CPP_OPTION (pfile, out_fname) = ""; | |
6de1e2a9 | 899 | |
96302433 NB |
900 | if (CPP_OPTION (pfile, print_deps)) |
901 | { | |
902 | /* Set the default target (if there is none already). */ | |
903 | deps_add_default_target (pfile->deps, CPP_OPTION (pfile, in_fname)); | |
904 | ||
905 | if (CPP_OPTION (pfile, in_fname)) | |
906 | deps_add_dep (pfile->deps, CPP_OPTION (pfile, in_fname)); | |
907 | } | |
908 | ||
909 | /* Open the main input file. This must be done early, so we have a | |
910 | buffer to stand on. */ | |
614c7d37 | 911 | if (!_cpp_read_file (pfile, fname)) |
c45da1ca ZW |
912 | return 0; |
913 | ||
c45da1ca | 914 | /* Install __LINE__, etc. */ |
7ca3d2b1 | 915 | init_builtins (pfile); |
6de1e2a9 | 916 | |
6de1e2a9 | 917 | /* Do -U's, -D's and -A's in the order they were seen. */ |
ae79697b | 918 | p = CPP_OPTION (pfile, pending)->directive_head; |
0b22d65c | 919 | while (p) |
6de1e2a9 | 920 | { |
b1b74f93 | 921 | (*p->handler) (pfile, p->arg); |
0b22d65c ZW |
922 | q = p->next; |
923 | free (p); | |
924 | p = q; | |
6de1e2a9 | 925 | } |
ae79697b | 926 | pfile->done_initializing = 1; |
041c3194 | 927 | |
6de1e2a9 | 928 | /* The -imacros files can be scanned now, but the -include files |
4a58aab6 NB |
929 | have to be pushed onto the buffer stack and processed later, |
930 | otherwise cppmain.c won't see the tokens. include_head was built | |
931 | up as a stack, and popping this stack onto the buffer stack means | |
932 | we preserve the order of the command line. */ | |
933 | do_includes (pfile, CPP_OPTION (pfile, pending)->imacros_head, 1); | |
934 | do_includes (pfile, CPP_OPTION (pfile, pending)->include_head, 0); | |
6de1e2a9 | 935 | |
ae79697b ZW |
936 | free (CPP_OPTION (pfile, pending)); |
937 | CPP_OPTION (pfile, pending) = NULL; | |
6de1e2a9 ZW |
938 | |
939 | return 1; | |
940 | } | |
941 | ||
7ca3d2b1 NB |
942 | static void |
943 | output_deps (pfile) | |
944 | cpp_reader *pfile; | |
945 | { | |
946 | /* Stream on which to print the dependency information. */ | |
947 | FILE *deps_stream = 0; | |
948 | const char *deps_mode = CPP_OPTION (pfile, print_deps_append) ? "a" : "w"; | |
949 | ||
950 | if (CPP_OPTION (pfile, deps_file) == 0) | |
951 | deps_stream = stdout; | |
952 | else | |
953 | { | |
954 | deps_stream = fopen (CPP_OPTION (pfile, deps_file), deps_mode); | |
955 | if (deps_stream == 0) | |
956 | { | |
957 | cpp_notice_from_errno (pfile, CPP_OPTION (pfile, deps_file)); | |
958 | return; | |
959 | } | |
960 | } | |
961 | ||
962 | deps_write (pfile->deps, deps_stream, 72); | |
963 | ||
964 | if (CPP_OPTION (pfile, deps_phony_targets)) | |
965 | deps_phony_targets (pfile->deps, deps_stream); | |
966 | ||
967 | /* Don't close stdout. */ | |
968 | if (CPP_OPTION (pfile, deps_file)) | |
969 | { | |
970 | if (ferror (deps_stream) || fclose (deps_stream) != 0) | |
971 | cpp_fatal (pfile, "I/O error on output"); | |
972 | } | |
973 | } | |
974 | ||
6de1e2a9 ZW |
975 | /* This is called at the end of preprocessing. It pops the |
976 | last buffer and writes dependency output. It should also | |
977 | clear macro definitions, such that you could call cpp_start_read | |
4a58aab6 | 978 | with a new filename to restart processing. */ |
6de1e2a9 | 979 | void |
93c80368 | 980 | cpp_finish (pfile) |
6de1e2a9 ZW |
981 | cpp_reader *pfile; |
982 | { | |
f2d5f0cc ZW |
983 | if (CPP_BUFFER (pfile)) |
984 | { | |
985 | cpp_ice (pfile, "buffers still stacked in cpp_finish"); | |
986 | while (CPP_BUFFER (pfile)) | |
987 | cpp_pop_buffer (pfile); | |
988 | } | |
c1212d2f | 989 | |
49e6c08e | 990 | /* Don't write the deps file if preprocessing has failed. */ |
ae79697b | 991 | if (CPP_OPTION (pfile, print_deps) && pfile->errors == 0) |
7ca3d2b1 | 992 | output_deps (pfile); |
3caee4a8 | 993 | |
d4506961 ZW |
994 | /* Report on headers that could use multiple include guards. */ |
995 | if (CPP_OPTION (pfile, print_include_names)) | |
c71f835b | 996 | _cpp_report_missing_guards (pfile); |
6de1e2a9 ZW |
997 | } |
998 | ||
223dca6a | 999 | static void |
ae79697b ZW |
1000 | new_pending_directive (pend, text, handler) |
1001 | struct cpp_pending *pend; | |
223dca6a | 1002 | const char *text; |
40eac643 | 1003 | cl_directive_handler handler; |
223dca6a RH |
1004 | { |
1005 | struct pending_option *o = (struct pending_option *) | |
1006 | xmalloc (sizeof (struct pending_option)); | |
1007 | ||
7ceb3598 | 1008 | o->arg = text; |
223dca6a | 1009 | o->next = NULL; |
40eac643 | 1010 | o->handler = handler; |
ae79697b | 1011 | APPEND (pend, directive, o); |
223dca6a RH |
1012 | } |
1013 | ||
ae79697b ZW |
1014 | /* Irix6 "cc -n32" and OSF4 cc have problems with char foo[] = ("string"); |
1015 | I.e. a const string initializer with parens around it. That is | |
1016 | what N_("string") resolves to, so we make no_* be macros instead. */ | |
1017 | #define no_arg N_("Argument missing after %s") | |
1018 | #define no_ass N_("Assertion missing after %s") | |
1019 | #define no_dir N_("Directory name missing after %s") | |
1020 | #define no_fil N_("File name missing after %s") | |
1021 | #define no_mac N_("Macro name missing after %s") | |
1022 | #define no_pth N_("Path name missing after %s") | |
6ab3e7dd | 1023 | #define no_num N_("Number missing after %s") |
03b9ab42 | 1024 | #define no_tgt N_("Target missing after %s") |
ae79697b ZW |
1025 | |
1026 | /* This is the list of all command line options, with the leading | |
1027 | "-" removed. It must be sorted in ASCII collating order. */ | |
1028 | #define COMMAND_LINE_OPTIONS \ | |
1029 | DEF_OPT("", 0, OPT_stdin_stdout) \ | |
1030 | DEF_OPT("$", 0, OPT_dollar) \ | |
1031 | DEF_OPT("+", 0, OPT_plus) \ | |
1032 | DEF_OPT("-help", 0, OPT__help) \ | |
91606ce2 | 1033 | DEF_OPT("-target-help", 0, OPT_target__help) \ |
ae79697b ZW |
1034 | DEF_OPT("-version", 0, OPT__version) \ |
1035 | DEF_OPT("A", no_ass, OPT_A) \ | |
1036 | DEF_OPT("C", 0, OPT_C) \ | |
1037 | DEF_OPT("D", no_mac, OPT_D) \ | |
1038 | DEF_OPT("H", 0, OPT_H) \ | |
1039 | DEF_OPT("I", no_dir, OPT_I) \ | |
1040 | DEF_OPT("M", 0, OPT_M) \ | |
96302433 | 1041 | DEF_OPT("MF", no_fil, OPT_MF) \ |
ae79697b ZW |
1042 | DEF_OPT("MG", 0, OPT_MG) \ |
1043 | DEF_OPT("MM", 0, OPT_MM) \ | |
a5a4ce3c | 1044 | DEF_OPT("MP", 0, OPT_MP) \ |
f7114e17 | 1045 | DEF_OPT("MQ", no_tgt, OPT_MQ) \ |
03b9ab42 | 1046 | DEF_OPT("MT", no_tgt, OPT_MT) \ |
ae79697b ZW |
1047 | DEF_OPT("P", 0, OPT_P) \ |
1048 | DEF_OPT("U", no_mac, OPT_U) \ | |
1049 | DEF_OPT("W", no_arg, OPT_W) /* arg optional */ \ | |
1050 | DEF_OPT("d", no_arg, OPT_d) \ | |
1051 | DEF_OPT("fleading-underscore", 0, OPT_fleading_underscore) \ | |
1052 | DEF_OPT("fno-leading-underscore", 0, OPT_fno_leading_underscore) \ | |
be768055 | 1053 | DEF_OPT("fno-operator-names", 0, OPT_fno_operator_names) \ |
ae79697b ZW |
1054 | DEF_OPT("fno-preprocessed", 0, OPT_fno_preprocessed) \ |
1055 | DEF_OPT("fno-show-column", 0, OPT_fno_show_column) \ | |
1056 | DEF_OPT("fpreprocessed", 0, OPT_fpreprocessed) \ | |
1057 | DEF_OPT("fshow-column", 0, OPT_fshow_column) \ | |
6ab3e7dd | 1058 | DEF_OPT("ftabstop=", no_num, OPT_ftabstop) \ |
ae79697b ZW |
1059 | DEF_OPT("g", no_arg, OPT_g) /* arg optional */ \ |
1060 | DEF_OPT("h", 0, OPT_h) \ | |
1061 | DEF_OPT("idirafter", no_dir, OPT_idirafter) \ | |
1062 | DEF_OPT("imacros", no_fil, OPT_imacros) \ | |
1063 | DEF_OPT("include", no_fil, OPT_include) \ | |
1064 | DEF_OPT("iprefix", no_pth, OPT_iprefix) \ | |
1065 | DEF_OPT("isystem", no_dir, OPT_isystem) \ | |
1066 | DEF_OPT("iwithprefix", no_dir, OPT_iwithprefix) \ | |
1067 | DEF_OPT("iwithprefixbefore", no_dir, OPT_iwithprefixbefore) \ | |
1068 | DEF_OPT("lang-asm", 0, OPT_lang_asm) \ | |
1069 | DEF_OPT("lang-c", 0, OPT_lang_c) \ | |
1070 | DEF_OPT("lang-c++", 0, OPT_lang_cplusplus) \ | |
1071 | DEF_OPT("lang-c89", 0, OPT_lang_c89) \ | |
ae79697b ZW |
1072 | DEF_OPT("lang-objc", 0, OPT_lang_objc) \ |
1073 | DEF_OPT("lang-objc++", 0, OPT_lang_objcplusplus) \ | |
1074 | DEF_OPT("nostdinc", 0, OPT_nostdinc) \ | |
1075 | DEF_OPT("nostdinc++", 0, OPT_nostdincplusplus) \ | |
1076 | DEF_OPT("o", no_fil, OPT_o) \ | |
1077 | DEF_OPT("pedantic", 0, OPT_pedantic) \ | |
1078 | DEF_OPT("pedantic-errors", 0, OPT_pedantic_errors) \ | |
1079 | DEF_OPT("remap", 0, OPT_remap) \ | |
dd07b884 | 1080 | DEF_OPT("std=c++98", 0, OPT_std_cplusplus98) \ |
ae79697b ZW |
1081 | DEF_OPT("std=c89", 0, OPT_std_c89) \ |
1082 | DEF_OPT("std=c99", 0, OPT_std_c99) \ | |
1083 | DEF_OPT("std=c9x", 0, OPT_std_c9x) \ | |
1084 | DEF_OPT("std=gnu89", 0, OPT_std_gnu89) \ | |
1085 | DEF_OPT("std=gnu99", 0, OPT_std_gnu99) \ | |
1086 | DEF_OPT("std=gnu9x", 0, OPT_std_gnu9x) \ | |
1087 | DEF_OPT("std=iso9899:1990", 0, OPT_std_iso9899_1990) \ | |
1088 | DEF_OPT("std=iso9899:199409", 0, OPT_std_iso9899_199409) \ | |
1089 | DEF_OPT("std=iso9899:1999", 0, OPT_std_iso9899_1999) \ | |
1090 | DEF_OPT("std=iso9899:199x", 0, OPT_std_iso9899_199x) \ | |
ae79697b ZW |
1091 | DEF_OPT("trigraphs", 0, OPT_trigraphs) \ |
1092 | DEF_OPT("v", 0, OPT_v) \ | |
f4cdc368 | 1093 | DEF_OPT("version", 0, OPT_version) \ |
ae79697b ZW |
1094 | DEF_OPT("w", 0, OPT_w) |
1095 | ||
1096 | #define DEF_OPT(text, msg, code) code, | |
e23c0ba3 ZW |
1097 | enum opt_code |
1098 | { | |
ae79697b | 1099 | COMMAND_LINE_OPTIONS |
e23c0ba3 ZW |
1100 | N_OPTS |
1101 | }; | |
ae79697b | 1102 | #undef DEF_OPT |
e23c0ba3 ZW |
1103 | |
1104 | struct cl_option | |
1105 | { | |
1106 | const char *opt_text; | |
1107 | const char *msg; | |
1108 | size_t opt_len; | |
1109 | enum opt_code opt_code; | |
1110 | }; | |
1111 | ||
ae79697b | 1112 | #define DEF_OPT(text, msg, code) { text, msg, sizeof(text) - 1, code }, |
e23c0ba3 ZW |
1113 | #ifdef HOST_EBCDIC |
1114 | static struct cl_option cl_options[] = | |
1115 | #else | |
1116 | static const struct cl_option cl_options[] = | |
1117 | #endif | |
1118 | { | |
ae79697b | 1119 | COMMAND_LINE_OPTIONS |
e23c0ba3 ZW |
1120 | }; |
1121 | #undef DEF_OPT | |
ae79697b | 1122 | #undef COMMAND_LINE_OPTIONS |
e23c0ba3 ZW |
1123 | |
1124 | /* Perform a binary search to find which, if any, option the given | |
1125 | command-line matches. Returns its index in the option array, | |
1126 | negative on failure. Complications arise since some options can be | |
1127 | suffixed with an argument, and multiple complete matches can occur, | |
1128 | e.g. -iwithprefix and -iwithprefixbefore. Moreover, we want to | |
1129 | accept options beginning with -g and -W that we do not recognise, | |
1130 | but not to swallow any subsequent command line argument; these are | |
4a58aab6 | 1131 | handled as special cases in cpp_handle_option. */ |
e23c0ba3 ZW |
1132 | static int |
1133 | parse_option (input) | |
1134 | const char *input; | |
1135 | { | |
1136 | unsigned int md, mn, mx; | |
1137 | size_t opt_len; | |
1138 | int comp; | |
1139 | ||
1140 | mn = 0; | |
1141 | mx = N_OPTS; | |
1142 | ||
1143 | while (mx > mn) | |
1144 | { | |
1145 | md = (mn + mx) / 2; | |
ae79697b | 1146 | |
e23c0ba3 | 1147 | opt_len = cl_options[md].opt_len; |
61d0346d | 1148 | comp = memcmp (input, cl_options[md].opt_text, opt_len); |
ae79697b | 1149 | |
e23c0ba3 ZW |
1150 | if (comp > 0) |
1151 | mn = md + 1; | |
1152 | else if (comp < 0) | |
1153 | mx = md; | |
1154 | else | |
1155 | { | |
1156 | if (input[opt_len] == '\0') | |
1157 | return md; | |
1158 | /* We were passed more text. If the option takes an argument, | |
1159 | we may match a later option or we may have been passed the | |
1160 | argument. The longest possible option match succeeds. | |
1161 | If the option takes no arguments we have not matched and | |
4a58aab6 | 1162 | continue the search (e.g. input="stdc++" match was "stdc"). */ |
e23c0ba3 ZW |
1163 | mn = md + 1; |
1164 | if (cl_options[md].msg) | |
1165 | { | |
1166 | /* Scan forwards. If we get an exact match, return it. | |
1167 | Otherwise, return the longest option-accepting match. | |
4a58aab6 | 1168 | This loops no more than twice with current options. */ |
e23c0ba3 ZW |
1169 | mx = md; |
1170 | for (; mn < N_OPTS; mn++) | |
1171 | { | |
1172 | opt_len = cl_options[mn].opt_len; | |
61d0346d | 1173 | if (memcmp (input, cl_options[mn].opt_text, opt_len)) |
e23c0ba3 ZW |
1174 | break; |
1175 | if (input[opt_len] == '\0') | |
1176 | return mn; | |
1177 | if (cl_options[mn].msg) | |
1178 | mx = mn; | |
1179 | } | |
1180 | return mx; | |
1181 | } | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | return -1; | |
1186 | } | |
1187 | ||
6de1e2a9 ZW |
1188 | /* Handle one command-line option in (argc, argv). |
1189 | Can be called multiple times, to handle multiple sets of options. | |
1190 | Returns number of strings consumed. */ | |
c8d8ed65 | 1191 | |
2c0accc9 ZW |
1192 | int |
1193 | cpp_handle_option (pfile, argc, argv) | |
6de1e2a9 ZW |
1194 | cpp_reader *pfile; |
1195 | int argc; | |
1196 | char **argv; | |
1197 | { | |
6de1e2a9 | 1198 | int i = 0; |
f8f769ea | 1199 | struct cpp_pending *pend = CPP_OPTION (pfile, pending); |
6de1e2a9 | 1200 | |
0b22d65c ZW |
1201 | if (argv[i][0] != '-') |
1202 | { | |
ae79697b ZW |
1203 | if (CPP_OPTION (pfile, out_fname) != NULL) |
1204 | cpp_fatal (pfile, "Too many arguments. Type %s --help for usage info", | |
1205 | progname); | |
1206 | else if (CPP_OPTION (pfile, in_fname) != NULL) | |
1207 | CPP_OPTION (pfile, out_fname) = argv[i]; | |
0b22d65c | 1208 | else |
ae79697b | 1209 | CPP_OPTION (pfile, in_fname) = argv[i]; |
0b22d65c ZW |
1210 | } |
1211 | else | |
e23c0ba3 ZW |
1212 | { |
1213 | enum opt_code opt_code; | |
1214 | int opt_index; | |
7ceb3598 | 1215 | const char *arg = 0; |
e23c0ba3 | 1216 | |
4a58aab6 | 1217 | /* Skip over '-'. */ |
e23c0ba3 ZW |
1218 | opt_index = parse_option (&argv[i][1]); |
1219 | if (opt_index < 0) | |
1220 | return i; | |
1221 | ||
1222 | opt_code = cl_options[opt_index].opt_code; | |
1223 | if (cl_options[opt_index].msg) | |
1224 | { | |
1225 | arg = &argv[i][cl_options[opt_index].opt_len + 1]; | |
1226 | ||
1227 | /* Yuk. Special case for -g and -W as they must not swallow | |
1228 | up any following argument. If this becomes common, add | |
4a58aab6 | 1229 | another field to the cl_options table. */ |
e23c0ba3 ZW |
1230 | if (arg[0] == '\0' && !(opt_code == OPT_g || opt_code == OPT_W)) |
1231 | { | |
1232 | arg = argv[++i]; | |
1233 | if (!arg) | |
1234 | { | |
d88b89e5 | 1235 | cpp_fatal (pfile, cl_options[opt_index].msg, argv[i - 1]); |
e23c0ba3 ZW |
1236 | return argc; |
1237 | } | |
1238 | } | |
1239 | } | |
ae79697b | 1240 | |
e23c0ba3 ZW |
1241 | switch (opt_code) |
1242 | { | |
4a58aab6 | 1243 | case N_OPTS: /* Shut GCC up. */ |
e23c0ba3 ZW |
1244 | break; |
1245 | case OPT_fleading_underscore: | |
771c4df3 | 1246 | CPP_OPTION (pfile, user_label_prefix) = "_"; |
e23c0ba3 ZW |
1247 | break; |
1248 | case OPT_fno_leading_underscore: | |
771c4df3 | 1249 | CPP_OPTION (pfile, user_label_prefix) = ""; |
e23c0ba3 | 1250 | break; |
be768055 JJ |
1251 | case OPT_fno_operator_names: |
1252 | CPP_OPTION (pfile, operator_names) = 0; | |
1253 | break; | |
e23c0ba3 | 1254 | case OPT_fpreprocessed: |
ae79697b | 1255 | CPP_OPTION (pfile, preprocessed) = 1; |
e23c0ba3 ZW |
1256 | break; |
1257 | case OPT_fno_preprocessed: | |
ae79697b ZW |
1258 | CPP_OPTION (pfile, preprocessed) = 0; |
1259 | break; | |
1260 | case OPT_fshow_column: | |
1261 | CPP_OPTION (pfile, show_column) = 1; | |
1262 | break; | |
1263 | case OPT_fno_show_column: | |
1264 | CPP_OPTION (pfile, show_column) = 0; | |
e23c0ba3 | 1265 | break; |
6ab3e7dd NB |
1266 | case OPT_ftabstop: |
1267 | /* Silently ignore empty string, non-longs and silly values. */ | |
1268 | if (arg[0] != '\0') | |
1269 | { | |
1270 | char *endptr; | |
1271 | long tabstop = strtol (arg, &endptr, 10); | |
1272 | if (*endptr == '\0' && tabstop >= 1 && tabstop <= 100) | |
1273 | CPP_OPTION (pfile, tabstop) = tabstop; | |
1274 | } | |
1275 | break; | |
e23c0ba3 | 1276 | case OPT_w: |
ae79697b | 1277 | CPP_OPTION (pfile, inhibit_warnings) = 1; |
e23c0ba3 | 1278 | break; |
4a58aab6 | 1279 | case OPT_g: /* Silently ignore anything but -g3. */ |
e23c0ba3 | 1280 | if (!strcmp(&argv[i][2], "3")) |
ae79697b | 1281 | CPP_OPTION (pfile, debug_output) = 1; |
e23c0ba3 ZW |
1282 | break; |
1283 | case OPT_h: | |
1284 | case OPT__help: | |
1285 | print_help (); | |
f4cdc368 | 1286 | pfile->help_only = 1; |
e23c0ba3 | 1287 | break; |
91606ce2 | 1288 | case OPT_target__help: |
f4cdc368 ZW |
1289 | /* Print if any target specific options. cpplib has none, but |
1290 | make sure help_only gets set. */ | |
1291 | pfile->help_only = 1; | |
91606ce2 | 1292 | break; |
f4cdc368 ZW |
1293 | |
1294 | /* --version inhibits compilation, -version doesn't. -v means | |
1295 | verbose and -version. Historical reasons, don't ask. */ | |
e23c0ba3 | 1296 | case OPT__version: |
f4cdc368 ZW |
1297 | pfile->help_only = 1; |
1298 | goto version; | |
1299 | case OPT_v: | |
1300 | CPP_OPTION (pfile, verbose) = 1; | |
1301 | goto version; | |
1302 | ||
1303 | case OPT_version: | |
1304 | version: | |
1305 | fprintf (stderr, _("GNU CPP version %s (cpplib)"), version_string); | |
1306 | #ifdef TARGET_VERSION | |
1307 | TARGET_VERSION; | |
1308 | #endif | |
1309 | fputc ('\n', stderr); | |
e23c0ba3 | 1310 | break; |
f4cdc368 | 1311 | |
e23c0ba3 | 1312 | case OPT_C: |
ae79697b | 1313 | CPP_OPTION (pfile, discard_comments) = 0; |
e23c0ba3 ZW |
1314 | break; |
1315 | case OPT_P: | |
ae79697b | 1316 | CPP_OPTION (pfile, no_line_commands) = 1; |
e23c0ba3 | 1317 | break; |
4a58aab6 | 1318 | case OPT_dollar: /* Don't include $ in identifiers. */ |
ae79697b | 1319 | CPP_OPTION (pfile, dollars_in_ident) = 0; |
e23c0ba3 ZW |
1320 | break; |
1321 | case OPT_H: | |
ae79697b | 1322 | CPP_OPTION (pfile, print_include_names) = 1; |
e23c0ba3 ZW |
1323 | break; |
1324 | case OPT_D: | |
f8f769ea | 1325 | new_pending_directive (pend, arg, cpp_define); |
e23c0ba3 ZW |
1326 | break; |
1327 | case OPT_pedantic_errors: | |
ae79697b | 1328 | CPP_OPTION (pfile, pedantic_errors) = 1; |
e23c0ba3 ZW |
1329 | /* fall through */ |
1330 | case OPT_pedantic: | |
ae79697b | 1331 | CPP_OPTION (pfile, pedantic) = 1; |
e23c0ba3 | 1332 | break; |
e23c0ba3 | 1333 | case OPT_trigraphs: |
ae79697b | 1334 | CPP_OPTION (pfile, trigraphs) = 1; |
e23c0ba3 ZW |
1335 | break; |
1336 | case OPT_plus: | |
ae79697b ZW |
1337 | CPP_OPTION (pfile, cplusplus) = 1; |
1338 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
e23c0ba3 ZW |
1339 | break; |
1340 | case OPT_remap: | |
ae79697b | 1341 | CPP_OPTION (pfile, remap) = 1; |
e23c0ba3 ZW |
1342 | break; |
1343 | case OPT_iprefix: | |
ae79697b ZW |
1344 | CPP_OPTION (pfile, include_prefix) = arg; |
1345 | CPP_OPTION (pfile, include_prefix_len) = strlen (arg); | |
e23c0ba3 ZW |
1346 | break; |
1347 | case OPT_lang_c: | |
dd07b884 | 1348 | set_lang (pfile, CLK_GNUC89); |
e23c0ba3 | 1349 | break; |
e23c0ba3 | 1350 | case OPT_lang_cplusplus: |
dd07b884 | 1351 | set_lang (pfile, CLK_GNUCXX); |
e23c0ba3 | 1352 | break; |
f8f769ea | 1353 | case OPT_lang_objc: |
dd07b884 | 1354 | set_lang (pfile, CLK_OBJC); |
e23c0ba3 | 1355 | break; |
dd07b884 NB |
1356 | case OPT_lang_objcplusplus: |
1357 | set_lang (pfile, CLK_OBJCXX); | |
e23c0ba3 | 1358 | break; |
dd07b884 NB |
1359 | case OPT_lang_asm: |
1360 | set_lang (pfile, CLK_ASM); | |
e23c0ba3 | 1361 | break; |
dd07b884 NB |
1362 | case OPT_std_cplusplus98: |
1363 | set_lang (pfile, CLK_CXX98); | |
e23c0ba3 ZW |
1364 | break; |
1365 | case OPT_std_gnu89: | |
dd07b884 | 1366 | set_lang (pfile, CLK_GNUC89); |
e23c0ba3 ZW |
1367 | break; |
1368 | case OPT_std_gnu9x: | |
1369 | case OPT_std_gnu99: | |
dd07b884 | 1370 | set_lang (pfile, CLK_GNUC99); |
e23c0ba3 ZW |
1371 | break; |
1372 | case OPT_std_iso9899_199409: | |
dd07b884 NB |
1373 | set_lang (pfile, CLK_STDC94); |
1374 | break; | |
e23c0ba3 ZW |
1375 | case OPT_std_iso9899_1990: |
1376 | case OPT_std_c89: | |
9b55f29a | 1377 | case OPT_lang_c89: |
dd07b884 | 1378 | set_lang (pfile, CLK_STDC89); |
e23c0ba3 ZW |
1379 | break; |
1380 | case OPT_std_iso9899_199x: | |
1381 | case OPT_std_iso9899_1999: | |
1382 | case OPT_std_c9x: | |
1383 | case OPT_std_c99: | |
dd07b884 NB |
1384 | set_lang (pfile, CLK_STDC99); |
1385 | break; | |
1386 | case OPT_nostdinc: | |
1387 | /* -nostdinc causes no default include directories. | |
1388 | You must specify all include-file directories with -I. */ | |
1389 | CPP_OPTION (pfile, no_standard_includes) = 1; | |
1390 | break; | |
1391 | case OPT_nostdincplusplus: | |
1392 | /* -nostdinc++ causes no default C++-specific include directories. */ | |
1393 | CPP_OPTION (pfile, no_standard_cplusplus_includes) = 1; | |
e23c0ba3 ZW |
1394 | break; |
1395 | case OPT_o: | |
ae79697b | 1396 | if (CPP_OPTION (pfile, out_fname) != NULL) |
0b22d65c | 1397 | { |
e23c0ba3 ZW |
1398 | cpp_fatal (pfile, "Output filename specified twice"); |
1399 | return argc; | |
1400 | } | |
ae79697b ZW |
1401 | CPP_OPTION (pfile, out_fname) = arg; |
1402 | if (!strcmp (CPP_OPTION (pfile, out_fname), "-")) | |
1403 | CPP_OPTION (pfile, out_fname) = ""; | |
e23c0ba3 | 1404 | break; |
e23c0ba3 | 1405 | case OPT_stdin_stdout: |
4a58aab6 | 1406 | /* JF handle '-' as file name meaning stdin or stdout. */ |
ae79697b ZW |
1407 | if (CPP_OPTION (pfile, in_fname) == NULL) |
1408 | CPP_OPTION (pfile, in_fname) = ""; | |
1409 | else if (CPP_OPTION (pfile, out_fname) == NULL) | |
1410 | CPP_OPTION (pfile, out_fname) = ""; | |
e23c0ba3 ZW |
1411 | break; |
1412 | case OPT_d: | |
1413 | /* Args to -d specify what parts of macros to dump. | |
1414 | Silently ignore unrecognised options; they may | |
4a58aab6 | 1415 | be aimed at the compiler proper. */ |
e23c0ba3 ZW |
1416 | { |
1417 | char c; | |
ae79697b | 1418 | |
e23c0ba3 ZW |
1419 | while ((c = *arg++) != '\0') |
1420 | switch (c) | |
1421 | { | |
1422 | case 'M': | |
ae79697b ZW |
1423 | CPP_OPTION (pfile, dump_macros) = dump_only; |
1424 | CPP_OPTION (pfile, no_output) = 1; | |
0b22d65c ZW |
1425 | break; |
1426 | case 'N': | |
ae79697b | 1427 | CPP_OPTION (pfile, dump_macros) = dump_names; |
0b22d65c ZW |
1428 | break; |
1429 | case 'D': | |
ae79697b | 1430 | CPP_OPTION (pfile, dump_macros) = dump_definitions; |
0b22d65c ZW |
1431 | break; |
1432 | case 'I': | |
ae79697b | 1433 | CPP_OPTION (pfile, dump_includes) = 1; |
0b22d65c ZW |
1434 | break; |
1435 | } | |
e23c0ba3 ZW |
1436 | } |
1437 | break; | |
96302433 | 1438 | |
e23c0ba3 | 1439 | case OPT_MG: |
ae79697b | 1440 | CPP_OPTION (pfile, print_deps_missing_files) = 1; |
e23c0ba3 ZW |
1441 | break; |
1442 | case OPT_M: | |
96302433 NB |
1443 | CPP_OPTION (pfile, print_deps) = 2; |
1444 | break; | |
e23c0ba3 | 1445 | case OPT_MM: |
96302433 | 1446 | CPP_OPTION (pfile, print_deps) = 1; |
e23c0ba3 | 1447 | break; |
96302433 NB |
1448 | case OPT_MF: |
1449 | CPP_OPTION (pfile, deps_file) = arg; | |
1450 | break; | |
1451 | case OPT_MP: | |
a5a4ce3c NB |
1452 | CPP_OPTION (pfile, deps_phony_targets) = 1; |
1453 | break; | |
f7114e17 | 1454 | case OPT_MQ: |
03b9ab42 | 1455 | case OPT_MT: |
f7114e17 NB |
1456 | /* Add a target. -MQ quotes for Make. */ |
1457 | deps_add_target (pfile->deps, arg, opt_code == OPT_MQ); | |
03b9ab42 NB |
1458 | break; |
1459 | ||
e23c0ba3 | 1460 | case OPT_A: |
e1e97c4f | 1461 | if (arg[0] == '-') |
0b22d65c | 1462 | { |
e1e97c4f NB |
1463 | /* -A with an argument beginning with '-' acts as |
1464 | #unassert on whatever immediately follows the '-'. | |
1465 | If "-" is the whole argument, we eliminate all | |
1466 | predefined macros and assertions, including those | |
1467 | that were specified earlier on the command line. | |
1468 | That way we can get rid of any that were passed | |
1469 | automatically in from GCC. */ | |
1470 | ||
1471 | if (arg[1] == '\0') | |
0b22d65c | 1472 | { |
e1e97c4f NB |
1473 | struct pending_option *o1, *o2; |
1474 | ||
e33f6253 | 1475 | o1 = pend->directive_head; |
e1e97c4f NB |
1476 | while (o1) |
1477 | { | |
1478 | o2 = o1->next; | |
1479 | free (o1); | |
1480 | o1 = o2; | |
1481 | } | |
e33f6253 NB |
1482 | pend->directive_head = NULL; |
1483 | pend->directive_tail = NULL; | |
0b22d65c | 1484 | } |
e1e97c4f | 1485 | else |
e33f6253 | 1486 | new_pending_directive (pend, arg + 1, cpp_unassert); |
6de1e2a9 | 1487 | } |
e1e97c4f | 1488 | else |
e33f6253 | 1489 | new_pending_directive (pend, arg, cpp_assert); |
e23c0ba3 ZW |
1490 | break; |
1491 | case OPT_U: | |
e33f6253 | 1492 | new_pending_directive (pend, arg, cpp_undef); |
e23c0ba3 ZW |
1493 | break; |
1494 | case OPT_I: /* Add directory to path for includes. */ | |
1495 | if (!strcmp (arg, "-")) | |
1496 | { | |
1497 | /* -I- means: | |
1498 | Use the preceding -I directories for #include "..." | |
1499 | but not #include <...>. | |
1500 | Don't search the directory of the present file | |
1501 | for #include "...". (Note that -I. -I- is not the same as | |
1502 | the default setup; -I. uses the compiler's working dir.) */ | |
ae79697b | 1503 | if (! CPP_OPTION (pfile, ignore_srcdir)) |
e23c0ba3 | 1504 | { |
ae79697b ZW |
1505 | pend->quote_head = pend->brack_head; |
1506 | pend->quote_tail = pend->brack_tail; | |
1507 | pend->brack_head = 0; | |
1508 | pend->brack_tail = 0; | |
1509 | CPP_OPTION (pfile, ignore_srcdir) = 1; | |
e23c0ba3 ZW |
1510 | } |
1511 | else | |
1512 | { | |
1513 | cpp_fatal (pfile, "-I- specified twice"); | |
1514 | return argc; | |
1515 | } | |
1516 | } | |
1517 | else | |
e33f6253 | 1518 | append_include_chain (pfile, xstrdup (arg), BRACKET, 0); |
e23c0ba3 ZW |
1519 | break; |
1520 | case OPT_isystem: | |
1521 | /* Add directory to beginning of system include path, as a system | |
4a58aab6 | 1522 | include directory. */ |
e33f6253 | 1523 | append_include_chain (pfile, xstrdup (arg), SYSTEM, 0); |
e23c0ba3 ZW |
1524 | break; |
1525 | case OPT_include: | |
1526 | { | |
1527 | struct pending_option *o = (struct pending_option *) | |
1528 | xmalloc (sizeof (struct pending_option)); | |
1529 | o->arg = arg; | |
1530 | ||
1531 | /* This list has to be built in reverse order so that | |
1532 | when cpp_start_read pushes all the -include files onto | |
1533 | the buffer stack, they will be scanned in forward order. */ | |
e33f6253 NB |
1534 | o->next = pend->include_head; |
1535 | pend->include_head = o; | |
e23c0ba3 ZW |
1536 | } |
1537 | break; | |
1538 | case OPT_imacros: | |
1539 | { | |
1540 | struct pending_option *o = (struct pending_option *) | |
1541 | xmalloc (sizeof (struct pending_option)); | |
1542 | o->arg = arg; | |
1543 | o->next = NULL; | |
ae79697b | 1544 | |
e33f6253 | 1545 | APPEND (pend, imacros, o); |
e23c0ba3 ZW |
1546 | } |
1547 | break; | |
1548 | case OPT_iwithprefix: | |
1549 | /* Add directory to end of path for includes, | |
1550 | with the default prefix at the front of its name. */ | |
1551 | /* fall through */ | |
1552 | case OPT_iwithprefixbefore: | |
1553 | /* Add directory to main path for includes, | |
1554 | with the default prefix at the front of its name. */ | |
1555 | { | |
1556 | char *fname; | |
1557 | int len; | |
ae79697b | 1558 | |
e23c0ba3 | 1559 | len = strlen (arg); |
ae79697b ZW |
1560 | |
1561 | if (CPP_OPTION (pfile, include_prefix) != 0) | |
e23c0ba3 | 1562 | { |
ae79697b ZW |
1563 | size_t ipl = CPP_OPTION (pfile, include_prefix_len); |
1564 | fname = xmalloc (ipl + len + 1); | |
1565 | memcpy (fname, CPP_OPTION (pfile, include_prefix), ipl); | |
1566 | memcpy (fname + ipl, arg, len + 1); | |
e23c0ba3 | 1567 | } |
60893f43 | 1568 | else if (cpp_GCC_INCLUDE_DIR_len) |
e23c0ba3 | 1569 | { |
60893f43 ZW |
1570 | fname = xmalloc (cpp_GCC_INCLUDE_DIR_len + len + 1); |
1571 | memcpy (fname, cpp_GCC_INCLUDE_DIR, cpp_GCC_INCLUDE_DIR_len); | |
1572 | memcpy (fname + cpp_GCC_INCLUDE_DIR_len, arg, len + 1); | |
e23c0ba3 | 1573 | } |
60893f43 ZW |
1574 | else |
1575 | fname = xstrdup (arg); | |
ae79697b | 1576 | |
e33f6253 | 1577 | append_include_chain (pfile, fname, |
e23c0ba3 ZW |
1578 | opt_code == OPT_iwithprefix ? SYSTEM: BRACKET, 0); |
1579 | } | |
1580 | break; | |
1581 | case OPT_idirafter: | |
1582 | /* Add directory to end of path for includes. */ | |
e33f6253 | 1583 | append_include_chain (pfile, xstrdup (arg), AFTER, 0); |
e23c0ba3 ZW |
1584 | break; |
1585 | case OPT_W: | |
4a58aab6 | 1586 | /* Silently ignore unrecognised options. */ |
e23c0ba3 | 1587 | if (!strcmp (argv[i], "-Wall")) |
0b22d65c | 1588 | { |
ae79697b ZW |
1589 | CPP_OPTION (pfile, warn_trigraphs) = 1; |
1590 | CPP_OPTION (pfile, warn_comments) = 1; | |
0b22d65c | 1591 | } |
e23c0ba3 | 1592 | else if (!strcmp (argv[i], "-Wtraditional")) |
07aa0b04 | 1593 | CPP_OPTION (pfile, warn_traditional) = 1; |
e23c0ba3 | 1594 | else if (!strcmp (argv[i], "-Wtrigraphs")) |
ae79697b | 1595 | CPP_OPTION (pfile, warn_trigraphs) = 1; |
e23c0ba3 | 1596 | else if (!strcmp (argv[i], "-Wcomment")) |
ae79697b | 1597 | CPP_OPTION (pfile, warn_comments) = 1; |
e23c0ba3 | 1598 | else if (!strcmp (argv[i], "-Wcomments")) |
ae79697b | 1599 | CPP_OPTION (pfile, warn_comments) = 1; |
e23c0ba3 | 1600 | else if (!strcmp (argv[i], "-Wundef")) |
ae79697b | 1601 | CPP_OPTION (pfile, warn_undef) = 1; |
e23c0ba3 | 1602 | else if (!strcmp (argv[i], "-Wimport")) |
ae79697b | 1603 | CPP_OPTION (pfile, warn_import) = 1; |
e23c0ba3 | 1604 | else if (!strcmp (argv[i], "-Werror")) |
ae79697b | 1605 | CPP_OPTION (pfile, warnings_are_errors) = 1; |
317639a8 BC |
1606 | else if (!strcmp (argv[i], "-Wsystem-headers")) |
1607 | CPP_OPTION (pfile, warn_system_headers) = 1; | |
e23c0ba3 | 1608 | else if (!strcmp (argv[i], "-Wno-traditional")) |
07aa0b04 | 1609 | CPP_OPTION (pfile, warn_traditional) = 0; |
e23c0ba3 | 1610 | else if (!strcmp (argv[i], "-Wno-trigraphs")) |
ae79697b | 1611 | CPP_OPTION (pfile, warn_trigraphs) = 0; |
e23c0ba3 | 1612 | else if (!strcmp (argv[i], "-Wno-comment")) |
ae79697b | 1613 | CPP_OPTION (pfile, warn_comments) = 0; |
e23c0ba3 | 1614 | else if (!strcmp (argv[i], "-Wno-comments")) |
ae79697b | 1615 | CPP_OPTION (pfile, warn_comments) = 0; |
e23c0ba3 | 1616 | else if (!strcmp (argv[i], "-Wno-undef")) |
ae79697b | 1617 | CPP_OPTION (pfile, warn_undef) = 0; |
e23c0ba3 | 1618 | else if (!strcmp (argv[i], "-Wno-import")) |
ae79697b | 1619 | CPP_OPTION (pfile, warn_import) = 0; |
e23c0ba3 | 1620 | else if (!strcmp (argv[i], "-Wno-error")) |
ae79697b | 1621 | CPP_OPTION (pfile, warnings_are_errors) = 0; |
317639a8 BC |
1622 | else if (!strcmp (argv[i], "-Wno-system-headers")) |
1623 | CPP_OPTION (pfile, warn_system_headers) = 0; | |
e23c0ba3 ZW |
1624 | break; |
1625 | } | |
1626 | } | |
6de1e2a9 | 1627 | return i + 1; |
e23c0ba3 | 1628 | } |
0b22d65c | 1629 | |
6de1e2a9 ZW |
1630 | /* Handle command-line options in (argc, argv). |
1631 | Can be called multiple times, to handle multiple sets of options. | |
1632 | Returns if an unrecognized option is seen. | |
1633 | Returns number of strings consumed. */ | |
6de1e2a9 ZW |
1634 | int |
1635 | cpp_handle_options (pfile, argc, argv) | |
1636 | cpp_reader *pfile; | |
1637 | int argc; | |
1638 | char **argv; | |
1639 | { | |
1640 | int i; | |
1641 | int strings_processed; | |
e23c0ba3 | 1642 | |
6de1e2a9 ZW |
1643 | for (i = 0; i < argc; i += strings_processed) |
1644 | { | |
2c0accc9 | 1645 | strings_processed = cpp_handle_option (pfile, argc - i, argv + i); |
6de1e2a9 ZW |
1646 | if (strings_processed == 0) |
1647 | break; | |
1648 | } | |
96302433 | 1649 | |
6de1e2a9 ZW |
1650 | return i; |
1651 | } | |
1652 | ||
96302433 NB |
1653 | /* Extra processing when all options are parsed, after all calls to |
1654 | cpp_handle_option[s]. Consistency checks etc. */ | |
1655 | void | |
1656 | cpp_post_options (pfile) | |
1657 | cpp_reader *pfile; | |
1658 | { | |
1659 | /* -Wtraditional is not useful in C++ mode. */ | |
1660 | if (CPP_OPTION (pfile, cplusplus)) | |
1661 | CPP_OPTION (pfile, warn_traditional) = 0; | |
1662 | ||
1663 | /* Set this if it hasn't been set already. */ | |
1664 | if (CPP_OPTION (pfile, user_label_prefix) == NULL) | |
1665 | CPP_OPTION (pfile, user_label_prefix) = USER_LABEL_PREFIX; | |
1666 | ||
1667 | /* We need to do this after option processing and before | |
1668 | cpp_start_read, as cppmain.c relies on the options->no_output to | |
1669 | set its callbacks correctly before calling cpp_start_read. */ | |
1670 | init_dependency_output (pfile); | |
1671 | ||
1672 | /* -MG doesn't select the form of output and must be specified with | |
1673 | one of -M or -MM. -MG doesn't make sense unless preprocessed | |
1674 | output (and compilation) is inhibited. */ | |
1675 | if (CPP_OPTION (pfile, print_deps_missing_files) | |
1676 | && CPP_OPTION (pfile, print_deps) == 0) | |
1677 | cpp_fatal (pfile, "-MG must be specified with one of -M or -MM"); | |
1678 | } | |
1679 | ||
7ca3d2b1 NB |
1680 | /* Set up dependency-file output. */ |
1681 | static void | |
1682 | init_dependency_output (pfile) | |
1683 | cpp_reader *pfile; | |
1684 | { | |
1685 | char *spec, *s, *output_file; | |
1686 | ||
1687 | /* Either of two environment variables can specify output of deps. | |
1688 | Its value is either "OUTPUT_FILE" or "OUTPUT_FILE DEPS_TARGET", | |
1689 | where OUTPUT_FILE is the file to write deps info to | |
1690 | and DEPS_TARGET is the target to mention in the deps. */ | |
1691 | ||
1692 | if (CPP_OPTION (pfile, print_deps) == 0) | |
1693 | { | |
1694 | spec = getenv ("DEPENDENCIES_OUTPUT"); | |
1695 | if (spec) | |
1696 | CPP_OPTION (pfile, print_deps) = 1; | |
1697 | else | |
1698 | { | |
1699 | spec = getenv ("SUNPRO_DEPENDENCIES"); | |
1700 | if (spec) | |
1701 | CPP_OPTION (pfile, print_deps) = 2; | |
1702 | else | |
1703 | return; | |
1704 | } | |
1705 | ||
1706 | /* Find the space before the DEPS_TARGET, if there is one. */ | |
1707 | s = strchr (spec, ' '); | |
1708 | if (s) | |
1709 | { | |
1710 | /* Let the caller perform MAKE quoting. */ | |
1711 | deps_add_target (pfile->deps, s + 1, 0); | |
1712 | output_file = (char *) xmalloc (s - spec + 1); | |
1713 | memcpy (output_file, spec, s - spec); | |
1714 | output_file[s - spec] = 0; | |
1715 | } | |
1716 | else | |
1717 | output_file = spec; | |
1718 | ||
96302433 NB |
1719 | /* Command line overrides environment variables. */ |
1720 | if (CPP_OPTION (pfile, deps_file) == 0) | |
1721 | CPP_OPTION (pfile, deps_file) = output_file; | |
7ca3d2b1 NB |
1722 | CPP_OPTION (pfile, print_deps_append) = 1; |
1723 | } | |
1724 | ||
96302433 NB |
1725 | /* If dependencies go to standard output, we need to suppress |
1726 | output. The user may be requesting other stuff to stdout, with | |
1727 | -dM, -v etc. We let them shoot themselves in the foot. */ | |
1728 | if (CPP_OPTION (pfile, deps_file) == 0) | |
1729 | CPP_OPTION (pfile, no_output) = 1; | |
7ca3d2b1 NB |
1730 | } |
1731 | ||
6de1e2a9 ZW |
1732 | static void |
1733 | print_help () | |
1734 | { | |
c1212d2f | 1735 | fprintf (stderr, _("Usage: %s [switches] input output\n"), progname); |
aaaf7848 DT |
1736 | /* To keep the lines from getting too long for some compilers, limit |
1737 | to about 500 characters (6 lines) per chunk. */ | |
6de1e2a9 ZW |
1738 | fputs (_("\ |
1739 | Switches:\n\ | |
1740 | -include <file> Include the contents of <file> before other files\n\ | |
1741 | -imacros <file> Accept definition of macros in <file>\n\ | |
1742 | -iprefix <path> Specify <path> as a prefix for next two options\n\ | |
1743 | -iwithprefix <dir> Add <dir> to the end of the system include path\n\ | |
1744 | -iwithprefixbefore <dir> Add <dir> to the end of the main include path\n\ | |
1745 | -isystem <dir> Add <dir> to the start of the system include path\n\ | |
aaaf7848 DT |
1746 | "), stdout); |
1747 | fputs (_("\ | |
6de1e2a9 ZW |
1748 | -idirafter <dir> Add <dir> to the end of the system include path\n\ |
1749 | -I <dir> Add <dir> to the end of the main include path\n\ | |
e23c0ba3 | 1750 | -I- Fine-grained include path control; see info docs\n\ |
6de1e2a9 ZW |
1751 | -nostdinc Do not search system include directories\n\ |
1752 | (dirs specified with -isystem will still be used)\n\ | |
1753 | -nostdinc++ Do not search system include directories for C++\n\ | |
1754 | -o <file> Put output into <file>\n\ | |
aaaf7848 DT |
1755 | "), stdout); |
1756 | fputs (_("\ | |
041c3194 | 1757 | -pedantic Issue all warnings demanded by strict ISO C\n\ |
e23c0ba3 | 1758 | -pedantic-errors Issue -pedantic warnings as errors instead\n\ |
041c3194 | 1759 | -trigraphs Support ISO C trigraphs\n\ |
6de1e2a9 ZW |
1760 | -lang-c Assume that the input sources are in C\n\ |
1761 | -lang-c89 Assume that the input sources are in C89\n\ | |
aaaf7848 DT |
1762 | "), stdout); |
1763 | fputs (_("\ | |
f9a0e96c | 1764 | -lang-c++ Assume that the input sources are in C++\n\ |
6de1e2a9 ZW |
1765 | -lang-objc Assume that the input sources are in ObjectiveC\n\ |
1766 | -lang-objc++ Assume that the input sources are in ObjectiveC++\n\ | |
1767 | -lang-asm Assume that the input sources are in assembler\n\ | |
aaaf7848 DT |
1768 | "), stdout); |
1769 | fputs (_("\ | |
6de1e2a9 | 1770 | -std=<std name> Specify the conformance standard; one of:\n\ |
916269ab UD |
1771 | gnu89, gnu99, c89, c99, iso9899:1990,\n\ |
1772 | iso9899:199409, iso9899:1999\n\ | |
6de1e2a9 ZW |
1773 | -+ Allow parsing of C++ style features\n\ |
1774 | -w Inhibit warning messages\n\ | |
1775 | -Wtrigraphs Warn if trigraphs are encountered\n\ | |
1776 | -Wno-trigraphs Do not warn about trigraphs\n\ | |
1777 | -Wcomment{s} Warn if one comment starts inside another\n\ | |
aaaf7848 DT |
1778 | "), stdout); |
1779 | fputs (_("\ | |
6de1e2a9 | 1780 | -Wno-comment{s} Do not warn about comments\n\ |
f9a0e96c ZW |
1781 | -Wtraditional Warn about features not present in traditional C\n\ |
1782 | -Wno-traditional Do not warn about traditional C\n\ | |
6de1e2a9 ZW |
1783 | -Wundef Warn if an undefined macro is used by #if\n\ |
1784 | -Wno-undef Do not warn about testing undefined macros\n\ | |
1785 | -Wimport Warn about the use of the #import directive\n\ | |
aaaf7848 DT |
1786 | "), stdout); |
1787 | fputs (_("\ | |
6de1e2a9 ZW |
1788 | -Wno-import Do not warn about the use of #import\n\ |
1789 | -Werror Treat all warnings as errors\n\ | |
1790 | -Wno-error Do not treat warnings as errors\n\ | |
317639a8 BC |
1791 | -Wsystem-headers Do not suppress warnings from system headers\n\ |
1792 | -Wno-system-headers Suppress warnings from system headers\n\ | |
6de1e2a9 | 1793 | -Wall Enable all preprocessor warnings\n\ |
aaaf7848 DT |
1794 | "), stdout); |
1795 | fputs (_("\ | |
317639a8 BC |
1796 | -M Generate make dependencies\n\ |
1797 | -MM As -M, but ignore system header files\n\ | |
96302433 | 1798 | -MF <file> Write dependency output to the given file\n\ |
6de1e2a9 | 1799 | -MG Treat missing header file as generated files\n\ |
96302433 NB |
1800 | "), stdout); |
1801 | fputs (_("\ | |
1802 | -MP Generate phony targets for all headers\n\ | |
1803 | -MQ <target> Add a MAKE-quoted target\n\ | |
1804 | -MT <target> Add an unquoted target\n\ | |
e23c0ba3 | 1805 | -g3 Include #define and #undef directives in the output\n\ |
aaaf7848 DT |
1806 | "), stdout); |
1807 | fputs (_("\ | |
317639a8 BC |
1808 | -D<macro> Define a <macro> with string '1' as its value\n\ |
1809 | -D<macro>=<val> Define a <macro> with <val> as its value\n\ | |
6de1e2a9 | 1810 | -A<question> (<answer>) Assert the <answer> to <question>\n\ |
e1e97c4f | 1811 | -A-<question> (<answer>) Disable the <answer> to <question>\n\ |
6de1e2a9 | 1812 | -U<macro> Undefine <macro> \n\ |
6de1e2a9 | 1813 | -v Display the version number\n\ |
aaaf7848 DT |
1814 | "), stdout); |
1815 | fputs (_("\ | |
317639a8 BC |
1816 | -H Print the name of header files as they are used\n\ |
1817 | -C Do not discard comments\n\ | |
6de1e2a9 ZW |
1818 | -dM Display a list of macro definitions active at end\n\ |
1819 | -dD Preserve macro definitions in output\n\ | |
1820 | -dN As -dD except that only the names are preserved\n\ | |
1821 | -dI Include #include directives in the output\n\ | |
317639a8 BC |
1822 | "), stdout); |
1823 | fputs (_("\ | |
6ab3e7dd | 1824 | -ftabstop=<number> Distance between tab stops for column reporting\n\ |
6de1e2a9 ZW |
1825 | -P Do not generate #line directives\n\ |
1826 | -$ Do not allow '$' in identifiers\n\ | |
1827 | -remap Remap file names when including files.\n\ | |
e23c0ba3 | 1828 | --version Display version information\n\ |
6de1e2a9 ZW |
1829 | -h or --help Display this information\n\ |
1830 | "), stdout); | |
1831 | } |