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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 | |
3943e756 | 43 | # define INO_T_EQ(a, b) (!memcmp (&(a), &(b), sizeof (a))) |
88ae23e7 | 44 | #else |
3943e756 MS |
45 | # if (defined _WIN32 && ! defined (_UWIN)) || defined __MSDOS__ |
46 | # define INO_T_EQ(a, b) 0 | |
47 | # else | |
48 | # define INO_T_EQ(a, b) ((a) == (b)) | |
49 | # endif | |
88ae23e7 ZW |
50 | #endif |
51 | ||
4a58aab6 | 52 | /* Internal structures and prototypes. */ |
6de1e2a9 | 53 | |
4a58aab6 NB |
54 | /* A `struct pending_option' remembers one -D, -A, -U, -include, or |
55 | -imacros switch. */ | |
40eac643 | 56 | |
8be1ddca | 57 | typedef void (* cl_directive_handler) PARAMS ((cpp_reader *, const char *)); |
0b22d65c | 58 | struct pending_option |
6de1e2a9 | 59 | { |
0b22d65c | 60 | struct pending_option *next; |
7ceb3598 | 61 | const char *arg; |
40eac643 | 62 | cl_directive_handler handler; |
6de1e2a9 | 63 | }; |
0b22d65c | 64 | |
88ae23e7 ZW |
65 | /* The `pending' structure accumulates all the options that are not |
66 | actually processed until we hit cpp_start_read. It consists of | |
67 | several lists, one for each type of option. We keep both head and | |
4a58aab6 | 68 | tail pointers for quick insertion. */ |
88ae23e7 ZW |
69 | struct cpp_pending |
70 | { | |
40eac643 | 71 | struct pending_option *directive_head, *directive_tail; |
88ae23e7 ZW |
72 | |
73 | struct file_name_list *quote_head, *quote_tail; | |
74 | struct file_name_list *brack_head, *brack_tail; | |
75 | struct file_name_list *systm_head, *systm_tail; | |
76 | struct file_name_list *after_head, *after_tail; | |
77 | ||
78 | struct pending_option *imacros_head, *imacros_tail; | |
79 | struct pending_option *include_head, *include_tail; | |
80 | }; | |
81 | ||
0b22d65c ZW |
82 | #ifdef __STDC__ |
83 | #define APPEND(pend, list, elt) \ | |
84 | do { if (!(pend)->list##_head) (pend)->list##_head = (elt); \ | |
85 | else (pend)->list##_tail->next = (elt); \ | |
86 | (pend)->list##_tail = (elt); \ | |
87 | } while (0) | |
88 | #else | |
89 | #define APPEND(pend, list, elt) \ | |
90 | do { if (!(pend)->list/**/_head) (pend)->list/**/_head = (elt); \ | |
91 | else (pend)->list/**/_tail->next = (elt); \ | |
92 | (pend)->list/**/_tail = (elt); \ | |
93 | } while (0) | |
94 | #endif | |
6de1e2a9 | 95 | |
6de1e2a9 | 96 | static void print_help PARAMS ((void)); |
0b22d65c | 97 | static void path_include PARAMS ((cpp_reader *, |
0b22d65c | 98 | char *, int)); |
674c3b40 | 99 | static void init_library PARAMS ((void)); |
7ca3d2b1 | 100 | static void init_builtins PARAMS ((cpp_reader *)); |
0b22d65c | 101 | static void append_include_chain PARAMS ((cpp_reader *, |
c45da1ca | 102 | char *, int, int)); |
dd69c71b NB |
103 | struct file_name_list * remove_dup_dir PARAMS ((cpp_reader *, |
104 | struct file_name_list *)); | |
105 | struct file_name_list * remove_dup_dirs PARAMS ((cpp_reader *, | |
106 | struct file_name_list *)); | |
ae79697b | 107 | static void merge_include_chains PARAMS ((cpp_reader *)); |
4a58aab6 NB |
108 | static void do_includes PARAMS ((cpp_reader *, |
109 | struct pending_option *, | |
110 | int)); | |
dd07b884 | 111 | static void set_lang PARAMS ((cpp_reader *, enum c_lang)); |
7ca3d2b1 NB |
112 | static void init_dependency_output PARAMS ((cpp_reader *)); |
113 | static void init_standard_includes PARAMS ((cpp_reader *)); | |
2c0accc9 | 114 | static void new_pending_directive PARAMS ((struct cpp_pending *, |
40eac643 NB |
115 | const char *, |
116 | cl_directive_handler)); | |
7ca3d2b1 | 117 | static void output_deps PARAMS ((cpp_reader *)); |
e23c0ba3 | 118 | static int parse_option PARAMS ((const char *)); |
6de1e2a9 | 119 | |
4a58aab6 | 120 | /* Fourth argument to append_include_chain: chain to use. */ |
0b22d65c | 121 | enum { QUOTE = 0, BRACKET, SYSTEM, AFTER }; |
6de1e2a9 | 122 | |
61d0346d NB |
123 | /* If we have designated initializers (GCC >2.7) these tables can be |
124 | initialized, constant data. Otherwise, they have to be filled in at | |
12cf91fe | 125 | runtime. */ |
61d0346d | 126 | #if HAVE_DESIGNATED_INITIALIZERS |
a9ae4483 | 127 | |
4a58aab6 | 128 | #define init_trigraph_map() /* Nothing. */ |
61d0346d NB |
129 | #define TRIGRAPH_MAP \ |
130 | __extension__ const U_CHAR _cpp_trigraph_map[UCHAR_MAX + 1] = { | |
131 | ||
a9ae4483 | 132 | #define END }; |
455d2586 | 133 | #define s(p, v) [p] = v, |
61d0346d | 134 | |
a9ae4483 | 135 | #else |
61d0346d | 136 | |
61d0346d NB |
137 | #define TRIGRAPH_MAP U_CHAR _cpp_trigraph_map[UCHAR_MAX + 1] = { 0 }; \ |
138 | static void init_trigraph_map PARAMS ((void)) { \ | |
139 | unsigned char *x = _cpp_trigraph_map; | |
140 | ||
ae79697b | 141 | #define END } |
455d2586 | 142 | #define s(p, v) x[p] = v; |
61d0346d | 143 | |
a9ae4483 | 144 | #endif |
6de1e2a9 | 145 | |
61d0346d NB |
146 | TRIGRAPH_MAP |
147 | s('=', '#') s(')', ']') s('!', '|') | |
148 | s('(', '[') s('\'', '^') s('>', '}') | |
149 | s('/', '\\') s('<', '{') s('-', '~') | |
150 | END | |
151 | ||
a9ae4483 | 152 | #undef s |
455d2586 | 153 | #undef END |
61d0346d | 154 | #undef TRIGRAPH_MAP |
6de1e2a9 ZW |
155 | |
156 | /* Given a colon-separated list of file names PATH, | |
157 | add all the names to the search path for include files. */ | |
158 | ||
159 | static void | |
e33f6253 | 160 | path_include (pfile, list, path) |
6de1e2a9 | 161 | cpp_reader *pfile; |
0b22d65c ZW |
162 | char *list; |
163 | int path; | |
6de1e2a9 | 164 | { |
0b22d65c | 165 | char *p, *q, *name; |
6de1e2a9 | 166 | |
0b22d65c | 167 | p = list; |
6de1e2a9 | 168 | |
0b22d65c ZW |
169 | do |
170 | { | |
6de1e2a9 | 171 | /* Find the end of this name. */ |
0b22d65c | 172 | q = p; |
6de1e2a9 | 173 | while (*q != 0 && *q != PATH_SEPARATOR) q++; |
0b22d65c ZW |
174 | if (q == p) |
175 | { | |
176 | /* An empty name in the path stands for the current directory. */ | |
177 | name = (char *) xmalloc (2); | |
178 | name[0] = '.'; | |
179 | name[1] = 0; | |
180 | } | |
181 | else | |
182 | { | |
183 | /* Otherwise use the directory that is named. */ | |
184 | name = (char *) xmalloc (q - p + 1); | |
185 | memcpy (name, p, q - p); | |
186 | name[q - p] = 0; | |
187 | } | |
6de1e2a9 | 188 | |
e33f6253 | 189 | append_include_chain (pfile, name, path, 0); |
6de1e2a9 ZW |
190 | |
191 | /* Advance past this name. */ | |
0b22d65c | 192 | if (*q == 0) |
6de1e2a9 | 193 | break; |
0b22d65c ZW |
194 | p = q + 1; |
195 | } | |
196 | while (1); | |
197 | } | |
198 | ||
0b22d65c ZW |
199 | /* Append DIR to include path PATH. DIR must be permanently allocated |
200 | and writable. */ | |
201 | static void | |
e33f6253 | 202 | append_include_chain (pfile, dir, path, cxx_aware) |
0b22d65c | 203 | cpp_reader *pfile; |
0b22d65c ZW |
204 | char *dir; |
205 | int path; | |
7d4918a2 | 206 | int cxx_aware ATTRIBUTE_UNUSED; |
0b22d65c | 207 | { |
e33f6253 | 208 | struct cpp_pending *pend = CPP_OPTION (pfile, pending); |
0b22d65c ZW |
209 | struct file_name_list *new; |
210 | struct stat st; | |
211 | unsigned int len; | |
212 | ||
b0699dad | 213 | _cpp_simplify_pathname (dir); |
0b22d65c ZW |
214 | if (stat (dir, &st)) |
215 | { | |
216 | /* Dirs that don't exist are silently ignored. */ | |
217 | if (errno != ENOENT) | |
c1212d2f | 218 | cpp_notice_from_errno (pfile, dir); |
ae79697b | 219 | else if (CPP_OPTION (pfile, verbose)) |
041c3194 | 220 | fprintf (stderr, _("ignoring nonexistent directory \"%s\"\n"), dir); |
0b22d65c ZW |
221 | return; |
222 | } | |
223 | ||
224 | if (!S_ISDIR (st.st_mode)) | |
225 | { | |
c1212d2f | 226 | cpp_notice (pfile, "%s: Not a directory", dir); |
0b22d65c ZW |
227 | return; |
228 | } | |
229 | ||
230 | len = strlen (dir); | |
231 | if (len > pfile->max_include_len) | |
232 | pfile->max_include_len = len; | |
ae79697b | 233 | |
7ceb3598 | 234 | new = (struct file_name_list *) xmalloc (sizeof (struct file_name_list)); |
0b22d65c ZW |
235 | new->name = dir; |
236 | new->nlen = len; | |
237 | new->ino = st.st_ino; | |
238 | new->dev = st.st_dev; | |
c45da1ca | 239 | if (path == SYSTEM) |
52b357ea JJ |
240 | #ifdef NO_IMPLICIT_EXTERN_C |
241 | new->sysp = 1; | |
242 | #else | |
c45da1ca | 243 | new->sysp = cxx_aware ? 1 : 2; |
52b357ea | 244 | #endif |
c45da1ca ZW |
245 | else |
246 | new->sysp = 0; | |
0b22d65c | 247 | new->name_map = NULL; |
503cb436 DB |
248 | new->next = NULL; |
249 | new->alloc = NULL; | |
0b22d65c ZW |
250 | |
251 | switch (path) | |
252 | { | |
253 | case QUOTE: APPEND (pend, quote, new); break; | |
254 | case BRACKET: APPEND (pend, brack, new); break; | |
255 | case SYSTEM: APPEND (pend, systm, new); break; | |
256 | case AFTER: APPEND (pend, after, new); break; | |
6de1e2a9 ZW |
257 | } |
258 | } | |
259 | ||
dd69c71b NB |
260 | /* Handle a duplicated include path. PREV is the link in the chain |
261 | before the duplicate. The duplicate is removed from the chain and | |
262 | freed. Returns PREV. */ | |
263 | struct file_name_list * | |
264 | remove_dup_dir (pfile, prev) | |
265 | cpp_reader *pfile; | |
266 | struct file_name_list *prev; | |
267 | { | |
268 | struct file_name_list *cur = prev->next; | |
269 | ||
270 | if (CPP_OPTION (pfile, verbose)) | |
271 | fprintf (stderr, _("ignoring duplicate directory \"%s\"\n"), cur->name); | |
272 | ||
273 | prev->next = cur->next; | |
274 | free (cur->name); | |
275 | free (cur); | |
276 | ||
277 | return prev; | |
278 | } | |
279 | ||
280 | /* Remove duplicate directories from a chain. Returns the tail of the | |
281 | chain, or NULL if the chain is empty. This algorithm is quadratic | |
282 | in the number of -I switches, which is acceptable since there | |
283 | aren't usually that many of them. */ | |
284 | struct file_name_list * | |
285 | remove_dup_dirs (pfile, head) | |
286 | cpp_reader *pfile; | |
287 | struct file_name_list *head; | |
288 | { | |
289 | struct file_name_list *prev = NULL, *cur, *other; | |
290 | ||
291 | for (cur = head; cur; cur = cur->next) | |
292 | { | |
293 | for (other = head; other != cur; other = other->next) | |
294 | if (INO_T_EQ (cur->ino, other->ino) && cur->dev == other->dev) | |
295 | { | |
296 | cur = remove_dup_dir (pfile, prev); | |
297 | break; | |
298 | } | |
299 | prev = cur; | |
300 | } | |
301 | ||
302 | return prev; | |
303 | } | |
304 | ||
88ae23e7 ZW |
305 | /* Merge the four include chains together in the order quote, bracket, |
306 | system, after. Remove duplicate dirs (as determined by | |
307 | INO_T_EQ()). The system_include and after_include chains are never | |
308 | referred to again after this function; all access is through the | |
309 | bracket_include path. | |
310 | ||
311 | For the future: Check if the directory is empty (but | |
4a58aab6 | 312 | how?) and possibly preload the include hash. */ |
88ae23e7 ZW |
313 | |
314 | static void | |
ae79697b ZW |
315 | merge_include_chains (pfile) |
316 | cpp_reader *pfile; | |
88ae23e7 | 317 | { |
dd69c71b | 318 | struct file_name_list *quote, *brack, *systm, *qtail; |
88ae23e7 | 319 | |
ae79697b | 320 | struct cpp_pending *pend = CPP_OPTION (pfile, pending); |
88ae23e7 | 321 | |
ae79697b ZW |
322 | quote = pend->quote_head; |
323 | brack = pend->brack_head; | |
324 | systm = pend->systm_head; | |
dd69c71b | 325 | qtail = pend->quote_tail; |
88ae23e7 | 326 | |
dd69c71b NB |
327 | /* Paste together bracket, system, and after include chains. */ |
328 | if (systm) | |
329 | pend->systm_tail->next = pend->after_head; | |
88ae23e7 | 330 | else |
dd69c71b NB |
331 | systm = pend->after_head; |
332 | ||
333 | if (brack) | |
334 | pend->brack_tail->next = systm; | |
88ae23e7 ZW |
335 | else |
336 | brack = systm; | |
337 | ||
dd69c71b NB |
338 | /* This is a bit tricky. First we drop dupes from the quote-include |
339 | list. Then we drop dupes from the bracket-include list. | |
340 | Finally, if qtail and brack are the same directory, we cut out | |
341 | brack. | |
88ae23e7 ZW |
342 | |
343 | We can't just merge the lists and then uniquify them because | |
344 | then we may lose directories from the <> search path that should | |
345 | be there; consider -Ifoo -Ibar -I- -Ifoo -Iquux. It is however | |
346 | safe to treat -Ibar -Ifoo -I- -Ifoo -Iquux as if written | |
dd69c71b | 347 | -Ibar -I- -Ifoo -Iquux. */ |
88ae23e7 | 348 | |
dd69c71b NB |
349 | remove_dup_dirs (pfile, brack); |
350 | qtail = remove_dup_dirs (pfile, quote); | |
88ae23e7 ZW |
351 | |
352 | if (quote) | |
353 | { | |
dd69c71b NB |
354 | qtail->next = brack; |
355 | ||
356 | /* If brack == qtail, remove brack as it's simpler. */ | |
88ae23e7 | 357 | if (INO_T_EQ (qtail->ino, brack->ino) && qtail->dev == brack->dev) |
dd69c71b | 358 | brack = remove_dup_dir (pfile, qtail); |
88ae23e7 ZW |
359 | } |
360 | else | |
361 | quote = brack; | |
362 | ||
ae79697b ZW |
363 | CPP_OPTION (pfile, quote_include) = quote; |
364 | CPP_OPTION (pfile, bracket_include) = brack; | |
88ae23e7 ZW |
365 | } |
366 | ||
dd07b884 NB |
367 | /* Sets internal flags correctly for a given language, and defines |
368 | macros if necessary. */ | |
369 | static void | |
370 | set_lang (pfile, lang) | |
371 | cpp_reader *pfile; | |
372 | enum c_lang lang; | |
373 | { | |
bdb05a7b NB |
374 | /* Defaults. */ |
375 | CPP_OPTION (pfile, lang) = lang; | |
dd07b884 NB |
376 | CPP_OPTION (pfile, objc) = 0; |
377 | CPP_OPTION (pfile, cplusplus) = 0; | |
bdb05a7b | 378 | CPP_OPTION (pfile, extended_numbers) = 1; /* Allowed in GNU C and C99. */ |
dd07b884 NB |
379 | |
380 | switch (lang) | |
381 | { | |
382 | /* GNU C. */ | |
383 | case CLK_GNUC99: | |
384 | CPP_OPTION (pfile, trigraphs) = 0; | |
385 | CPP_OPTION (pfile, dollars_in_ident) = 1; | |
386 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
387 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 | 388 | CPP_OPTION (pfile, c99) = 1; |
dd07b884 NB |
389 | break; |
390 | case CLK_GNUC89: | |
391 | CPP_OPTION (pfile, trigraphs) = 0; | |
392 | CPP_OPTION (pfile, dollars_in_ident) = 1; | |
393 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
394 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 NB |
395 | CPP_OPTION (pfile, c99) = 0; |
396 | break; | |
397 | ||
398 | /* ISO C. */ | |
399 | case CLK_STDC94: | |
dd07b884 NB |
400 | case CLK_STDC89: |
401 | CPP_OPTION (pfile, trigraphs) = 1; | |
402 | CPP_OPTION (pfile, dollars_in_ident) = 0; | |
403 | CPP_OPTION (pfile, cplusplus_comments) = 0; | |
404 | CPP_OPTION (pfile, digraphs) = lang == CLK_STDC94; | |
dd07b884 | 405 | CPP_OPTION (pfile, c99) = 0; |
bdb05a7b | 406 | CPP_OPTION (pfile, extended_numbers) = 0; |
dd07b884 NB |
407 | break; |
408 | case CLK_STDC99: | |
409 | CPP_OPTION (pfile, trigraphs) = 1; | |
410 | CPP_OPTION (pfile, dollars_in_ident) = 0; | |
411 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
412 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 | 413 | CPP_OPTION (pfile, c99) = 1; |
dd07b884 NB |
414 | break; |
415 | ||
416 | /* Objective C. */ | |
417 | case CLK_OBJCXX: | |
dd07b884 NB |
418 | CPP_OPTION (pfile, cplusplus) = 1; |
419 | case CLK_OBJC: | |
420 | CPP_OPTION (pfile, trigraphs) = 0; | |
421 | CPP_OPTION (pfile, dollars_in_ident) = 1; | |
422 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
423 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 NB |
424 | CPP_OPTION (pfile, c99) = 0; |
425 | CPP_OPTION (pfile, objc) = 1; | |
dd07b884 NB |
426 | break; |
427 | ||
428 | /* C++. */ | |
429 | case CLK_GNUCXX: | |
430 | case CLK_CXX98: | |
431 | CPP_OPTION (pfile, cplusplus) = 1; | |
432 | CPP_OPTION (pfile, trigraphs) = lang == CLK_CXX98; | |
433 | CPP_OPTION (pfile, dollars_in_ident) = lang == CLK_GNUCXX; | |
434 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
435 | CPP_OPTION (pfile, digraphs) = 1; | |
dd07b884 | 436 | CPP_OPTION (pfile, c99) = 0; |
dd07b884 NB |
437 | break; |
438 | ||
439 | /* Assembler. */ | |
440 | case CLK_ASM: | |
441 | CPP_OPTION (pfile, trigraphs) = 0; | |
442 | CPP_OPTION (pfile, dollars_in_ident) = 0; /* Maybe not? */ | |
443 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
444 | CPP_OPTION (pfile, digraphs) = 0; | |
dd07b884 | 445 | CPP_OPTION (pfile, c99) = 0; |
dd07b884 NB |
446 | break; |
447 | } | |
448 | } | |
449 | ||
7ca3d2b1 NB |
450 | #ifdef HOST_EBCDIC |
451 | static int opt_comp PARAMS ((const void *, const void *)); | |
452 | ||
453 | /* Run-time sorting of options array. */ | |
454 | static int | |
455 | opt_comp (p1, p2) | |
456 | const void *p1, *p2; | |
457 | { | |
458 | return strcmp (((struct cl_option *) p1)->opt_text, | |
459 | ((struct cl_option *) p2)->opt_text); | |
460 | } | |
461 | #endif | |
cf44ea52 | 462 | |
7ca3d2b1 NB |
463 | /* init initializes library global state. It might not need to |
464 | do anything depending on the platform and compiler. */ | |
cf44ea52 NB |
465 | |
466 | static void | |
674c3b40 | 467 | init_library () |
cf44ea52 | 468 | { |
7ca3d2b1 NB |
469 | static int initialized = 0; |
470 | ||
471 | if (! initialized) | |
472 | { | |
473 | initialized = 1; | |
474 | ||
cf44ea52 | 475 | #ifdef HOST_EBCDIC |
7ca3d2b1 NB |
476 | /* For non-ASCII hosts, the cl_options array needs to be sorted at |
477 | runtime. */ | |
478 | qsort (cl_options, N_OPTS, sizeof (struct cl_option), opt_comp); | |
cf44ea52 NB |
479 | #endif |
480 | ||
7ca3d2b1 NB |
481 | /* Set up the trigraph map. This doesn't need to do anything if |
482 | we were compiled with a compiler that supports C99 designated | |
483 | initializers. */ | |
484 | init_trigraph_map (); | |
485 | } | |
cf44ea52 NB |
486 | } |
487 | ||
6de1e2a9 | 488 | /* Initialize a cpp_reader structure. */ |
cf44ea52 NB |
489 | cpp_reader * |
490 | cpp_create_reader (lang) | |
dd07b884 | 491 | enum c_lang lang; |
6de1e2a9 | 492 | { |
93c80368 | 493 | struct spec_nodes *s; |
7ca3d2b1 | 494 | cpp_reader *pfile; |
93c80368 | 495 | |
cf44ea52 | 496 | /* Initialise this instance of the library if it hasn't been already. */ |
674c3b40 | 497 | init_library (); |
7ca3d2b1 NB |
498 | |
499 | pfile = (cpp_reader *) xcalloc (1, sizeof (cpp_reader)); | |
93c80368 | 500 | |
c740cee2 | 501 | set_lang (pfile, lang); |
ae79697b ZW |
502 | CPP_OPTION (pfile, warn_import) = 1; |
503 | CPP_OPTION (pfile, discard_comments) = 1; | |
504 | CPP_OPTION (pfile, show_column) = 1; | |
6ab3e7dd | 505 | CPP_OPTION (pfile, tabstop) = 8; |
be768055 | 506 | CPP_OPTION (pfile, operator_names) = 1; |
ae79697b ZW |
507 | |
508 | CPP_OPTION (pfile, pending) = | |
509 | (struct cpp_pending *) xcalloc (1, sizeof (struct cpp_pending)); | |
510 | ||
f7114e17 NB |
511 | /* It's simplest to just create this struct whether or not it will |
512 | be needed. */ | |
513 | pfile->deps = deps_init (); | |
514 | ||
4a58aab6 | 515 | /* Initialize lexer state. */ |
93c80368 NB |
516 | pfile->state.save_comments = ! CPP_OPTION (pfile, discard_comments); |
517 | ||
518 | /* Indicate date and time not yet calculated. */ | |
519 | pfile->date.type = CPP_EOF; | |
520 | ||
521 | /* Initialise the base context. */ | |
522 | pfile->context = &pfile->base_context; | |
523 | pfile->base_context.macro = 0; | |
524 | pfile->base_context.prev = pfile->base_context.next = 0; | |
525 | ||
526 | /* Identifier pool initially 8K. Unaligned, permanent pool. */ | |
527 | _cpp_init_pool (&pfile->ident_pool, 8 * 1024, 1, 0); | |
528 | ||
93c80368 NB |
529 | /* Argument pool initially 8K. Aligned, temporary pool. */ |
530 | _cpp_init_pool (&pfile->argument_pool, 8 * 1024, 0, 1); | |
531 | ||
532 | /* Macro pool initially 8K. Aligned, permanent pool. */ | |
533 | _cpp_init_pool (&pfile->macro_pool, 8 * 1024, 0, 0); | |
3cb553b4 | 534 | |
93c80368 | 535 | _cpp_init_hashtable (pfile); |
bfb9dc7f | 536 | _cpp_init_stacks (pfile); |
c71f835b | 537 | _cpp_init_includes (pfile); |
58fea6af | 538 | _cpp_init_internal_pragmas (pfile); |
6de1e2a9 | 539 | |
93c80368 NB |
540 | /* Initialize the special nodes. */ |
541 | s = &pfile->spec_nodes; | |
542 | s->n_L = cpp_lookup (pfile, DSC("L")); | |
543 | s->n_defined = cpp_lookup (pfile, DSC("defined")); | |
7d4918a2 ZW |
544 | s->n_true = cpp_lookup (pfile, DSC("true")); |
545 | s->n_false = cpp_lookup (pfile, DSC("false")); | |
a5c3cccd | 546 | s->n__Pragma = cpp_lookup (pfile, DSC("_Pragma")); |
93c80368 NB |
547 | s->n__STRICT_ANSI__ = cpp_lookup (pfile, DSC("__STRICT_ANSI__")); |
548 | s->n__CHAR_UNSIGNED__ = cpp_lookup (pfile, DSC("__CHAR_UNSIGNED__")); | |
549 | s->n__VA_ARGS__ = cpp_lookup (pfile, DSC("__VA_ARGS__")); | |
550 | s->n__VA_ARGS__->flags |= NODE_DIAGNOSTIC; | |
cf44ea52 NB |
551 | |
552 | return pfile; | |
f2d5f0cc ZW |
553 | } |
554 | ||
400023a3 NB |
555 | /* Free resources used by PFILE. Accessing PFILE after this function |
556 | returns leads to undefined behaviour. */ | |
557 | int | |
558 | cpp_destroy (pfile) | |
6de1e2a9 ZW |
559 | cpp_reader *pfile; |
560 | { | |
400023a3 | 561 | int result; |
93c80368 NB |
562 | struct file_name_list *dir, *dirn; |
563 | cpp_context *context, *contextn; | |
709e9e50 | 564 | |
38b24ee2 | 565 | while (CPP_BUFFER (pfile) != NULL) |
6de1e2a9 ZW |
566 | cpp_pop_buffer (pfile); |
567 | ||
93c80368 | 568 | if (pfile->macro_buffer) |
4b49c365 AO |
569 | { |
570 | free ((PTR) pfile->macro_buffer); | |
571 | pfile->macro_buffer = NULL; | |
572 | pfile->macro_buffer_len = 0; | |
573 | } | |
93c80368 | 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 | } | |
400023a3 NB |
599 | |
600 | result = pfile->errors; | |
601 | free (pfile); | |
602 | ||
603 | return result; | |
6de1e2a9 ZW |
604 | } |
605 | ||
606 | ||
93c80368 NB |
607 | /* This structure defines one built-in identifier. A node will be |
608 | entered in the hash table under the name NAME, with value VALUE (if | |
609 | any). If flags has OPERATOR, the node's operator field is used; if | |
610 | flags has BUILTIN the node's builtin field is used. | |
92936ecf ZW |
611 | |
612 | Two values are not compile time constants, so we tag | |
041c3194 | 613 | them in the FLAGS field instead: |
8c389f84 ZW |
614 | VERS value is the global version_string, quoted |
615 | ULP value is the global user_label_prefix | |
92936ecf | 616 | |
93c80368 | 617 | Also, macros with CPLUS set in the flags field are entered only for C++. */ |
a9ae4483 ZW |
618 | |
619 | struct builtin | |
620 | { | |
12cf91fe | 621 | const U_CHAR *name; |
041c3194 | 622 | const char *value; |
93c80368 NB |
623 | unsigned char builtin; |
624 | unsigned char operator; | |
a9ae4483 | 625 | unsigned short flags; |
93c80368 | 626 | unsigned short len; |
a9ae4483 | 627 | }; |
93c80368 NB |
628 | #define VERS 0x01 |
629 | #define ULP 0x02 | |
630 | #define CPLUS 0x04 | |
631 | #define BUILTIN 0x08 | |
632 | #define OPERATOR 0x10 | |
633 | ||
634 | #define B(n, t) { U n, 0, t, 0, BUILTIN, sizeof n - 1 } | |
1ca894a0 | 635 | #define BC(n, t) { U n, 0, t, 0, BUILTIN | CPLUS, sizeof n - 1 } |
93c80368 NB |
636 | #define C(n, v) { U n, v, 0, 0, 0, sizeof n - 1 } |
637 | #define X(n, f) { U n, 0, 0, 0, f, sizeof n - 1 } | |
638 | #define O(n, c, f) { U n, 0, 0, c, OPERATOR | f, sizeof n - 1 } | |
a9ae4483 | 639 | static const struct builtin builtin_array[] = |
6de1e2a9 | 640 | { |
93c80368 NB |
641 | B("__TIME__", BT_TIME), |
642 | B("__DATE__", BT_DATE), | |
643 | B("__FILE__", BT_FILE), | |
644 | B("__BASE_FILE__", BT_BASE_FILE), | |
645 | B("__LINE__", BT_SPECLINE), | |
646 | B("__INCLUDE_LEVEL__", BT_INCLUDE_LEVEL), | |
647 | B("__STDC__", BT_STDC), | |
1ca894a0 | 648 | BC("__GXX_WEAK__", BT_WEAK), |
12cf91fe | 649 | |
041c3194 ZW |
650 | X("__VERSION__", VERS), |
651 | X("__USER_LABEL_PREFIX__", ULP), | |
12cf91fe ZW |
652 | C("__REGISTER_PREFIX__", REGISTER_PREFIX), |
653 | C("__HAVE_BUILTIN_SETJMP__", "1"), | |
6de1e2a9 | 654 | #ifndef NO_BUILTIN_SIZE_TYPE |
12cf91fe | 655 | C("__SIZE_TYPE__", SIZE_TYPE), |
6de1e2a9 ZW |
656 | #endif |
657 | #ifndef NO_BUILTIN_PTRDIFF_TYPE | |
12cf91fe | 658 | C("__PTRDIFF_TYPE__", PTRDIFF_TYPE), |
6de1e2a9 | 659 | #endif |
0209c340 | 660 | #ifndef NO_BUILTIN_WCHAR_TYPE |
12cf91fe | 661 | C("__WCHAR_TYPE__", WCHAR_TYPE), |
0209c340 | 662 | #endif |
d6777972 JM |
663 | #ifndef NO_BUILTIN_WINT_TYPE |
664 | C("__WINT_TYPE__", WINT_TYPE), | |
665 | #endif | |
92936ecf ZW |
666 | |
667 | /* Named operators known to the preprocessor. These cannot be #defined | |
668 | and always have their stated meaning. They are treated like normal | |
93c80368 | 669 | identifiers except for the type code and the meaning. Most of them |
92936ecf | 670 | are only for C++ (but see iso646.h). */ |
92936ecf ZW |
671 | O("and", CPP_AND_AND, CPLUS), |
672 | O("and_eq", CPP_AND_EQ, CPLUS), | |
673 | O("bitand", CPP_AND, CPLUS), | |
674 | O("bitor", CPP_OR, CPLUS), | |
675 | O("compl", CPP_COMPL, CPLUS), | |
676 | O("not", CPP_NOT, CPLUS), | |
677 | O("not_eq", CPP_NOT_EQ, CPLUS), | |
678 | O("or", CPP_OR_OR, CPLUS), | |
679 | O("or_eq", CPP_OR_EQ, CPLUS), | |
680 | O("xor", CPP_XOR, CPLUS), | |
93c80368 | 681 | O("xor_eq", CPP_XOR_EQ, CPLUS) |
a9ae4483 | 682 | }; |
12cf91fe ZW |
683 | #undef B |
684 | #undef C | |
685 | #undef X | |
be768055 | 686 | #undef O |
8c389f84 ZW |
687 | #define builtin_array_end \ |
688 | builtin_array + sizeof(builtin_array)/sizeof(struct builtin) | |
a9ae4483 ZW |
689 | |
690 | /* Subroutine of cpp_start_read; reads the builtins table above and | |
691 | enters the macros into the hash table. */ | |
a9ae4483 | 692 | static void |
7ca3d2b1 | 693 | init_builtins (pfile) |
a9ae4483 ZW |
694 | cpp_reader *pfile; |
695 | { | |
a9ae4483 | 696 | const struct builtin *b; |
771c4df3 | 697 | |
8c389f84 | 698 | for(b = builtin_array; b < builtin_array_end; b++) |
6de1e2a9 | 699 | { |
93c80368 | 700 | if ((b->flags & CPLUS) && ! CPP_OPTION (pfile, cplusplus)) |
92936ecf ZW |
701 | continue; |
702 | ||
be768055 JJ |
703 | if ((b->flags & OPERATOR) && ! CPP_OPTION (pfile, operator_names)) |
704 | continue; | |
705 | ||
93c80368 NB |
706 | if (b->flags & (OPERATOR | BUILTIN)) |
707 | { | |
708 | cpp_hashnode *hp = cpp_lookup (pfile, b->name, b->len); | |
709 | if (b->flags & OPERATOR) | |
710 | { | |
711 | hp->flags |= NODE_OPERATOR; | |
712 | hp->value.operator = b->operator; | |
713 | } | |
714 | else | |
715 | { | |
716 | hp->type = NT_MACRO; | |
717 | hp->flags |= NODE_BUILTIN; | |
718 | hp->value.builtin = b->builtin; | |
719 | } | |
720 | } | |
721 | else /* A standard macro of some kind. */ | |
8c389f84 | 722 | { |
041c3194 ZW |
723 | const char *val; |
724 | char *str; | |
725 | ||
726 | if (b->flags & VERS) | |
727 | { | |
2c8f0515 ZW |
728 | /* Allocate enough space for 'name "value"\n\0'. */ |
729 | str = alloca (b->len + strlen (version_string) + 5); | |
730 | sprintf (str, "%s \"%s\"\n", b->name, version_string); | |
041c3194 ZW |
731 | } |
732 | else | |
733 | { | |
734 | if (b->flags & ULP) | |
771c4df3 | 735 | val = CPP_OPTION (pfile, user_label_prefix); |
041c3194 ZW |
736 | else |
737 | val = b->value; | |
738 | ||
2c8f0515 ZW |
739 | /* Allocate enough space for "name value\n\0". */ |
740 | str = alloca (b->len + strlen (val) + 3); | |
741 | sprintf(str, "%s %s\n", b->name, val); | |
041c3194 | 742 | } |
c154ba66 | 743 | |
2c8f0515 | 744 | _cpp_define_builtin (pfile, str); |
8c389f84 | 745 | } |
6de1e2a9 | 746 | } |
c740cee2 NB |
747 | |
748 | if (CPP_OPTION (pfile, cplusplus)) | |
749 | _cpp_define_builtin (pfile, "__cplusplus 1"); | |
750 | if (CPP_OPTION (pfile, objc)) | |
751 | _cpp_define_builtin (pfile, "__OBJC__ 1"); | |
752 | ||
753 | if (CPP_OPTION (pfile, lang) == CLK_STDC94) | |
754 | _cpp_define_builtin (pfile, "__STDC_VERSION__ 199409L"); | |
755 | else if (CPP_OPTION (pfile, c99)) | |
756 | _cpp_define_builtin (pfile, "__STDC_VERSION__ 199901L"); | |
757 | ||
758 | if (CPP_OPTION (pfile, lang) == CLK_STDC89 | |
759 | || CPP_OPTION (pfile, lang) == CLK_STDC94 | |
760 | || CPP_OPTION (pfile, lang) == CLK_STDC99) | |
761 | _cpp_define_builtin (pfile, "__STRICT_ANSI__ 1"); | |
762 | else if (CPP_OPTION (pfile, lang) == CLK_ASM) | |
763 | _cpp_define_builtin (pfile, "__ASSEMBLER__ 1"); | |
6de1e2a9 | 764 | } |
93c80368 NB |
765 | #undef BUILTIN |
766 | #undef OPERATOR | |
6feb7728 | 767 | #undef VERS |
a9ae4483 | 768 | #undef ULP |
93c80368 | 769 | #undef CPLUS |
041c3194 | 770 | #undef builtin_array_end |
6de1e2a9 | 771 | |
c45da1ca ZW |
772 | /* And another subroutine. This one sets up the standard include path. */ |
773 | static void | |
7ca3d2b1 | 774 | init_standard_includes (pfile) |
c45da1ca ZW |
775 | cpp_reader *pfile; |
776 | { | |
c45da1ca | 777 | char *path; |
455d2586 | 778 | const struct default_include *p; |
ae79697b | 779 | const char *specd_prefix = CPP_OPTION (pfile, include_prefix); |
c45da1ca ZW |
780 | |
781 | /* Several environment variables may add to the include search path. | |
782 | CPATH specifies an additional list of directories to be searched | |
783 | as if specified with -I, while C_INCLUDE_PATH, CPLUS_INCLUDE_PATH, | |
784 | etc. specify an additional list of directories to be searched as | |
785 | if specified with -isystem, for the language indicated. */ | |
786 | ||
787 | GET_ENV_PATH_LIST (path, "CPATH"); | |
788 | if (path != 0 && *path != 0) | |
e33f6253 | 789 | path_include (pfile, path, BRACKET); |
c45da1ca | 790 | |
ae79697b | 791 | switch ((CPP_OPTION (pfile, objc) << 1) + CPP_OPTION (pfile, cplusplus)) |
c45da1ca ZW |
792 | { |
793 | case 0: | |
794 | GET_ENV_PATH_LIST (path, "C_INCLUDE_PATH"); | |
795 | break; | |
796 | case 1: | |
797 | GET_ENV_PATH_LIST (path, "CPLUS_INCLUDE_PATH"); | |
798 | break; | |
799 | case 2: | |
800 | GET_ENV_PATH_LIST (path, "OBJC_INCLUDE_PATH"); | |
801 | break; | |
802 | case 3: | |
803 | GET_ENV_PATH_LIST (path, "OBJCPLUS_INCLUDE_PATH"); | |
804 | break; | |
805 | } | |
806 | if (path != 0 && *path != 0) | |
e33f6253 | 807 | path_include (pfile, path, SYSTEM); |
c45da1ca ZW |
808 | |
809 | /* Search "translated" versions of GNU directories. | |
810 | These have /usr/local/lib/gcc... replaced by specd_prefix. */ | |
60893f43 | 811 | if (specd_prefix != 0 && cpp_GCC_INCLUDE_DIR_len) |
c45da1ca | 812 | { |
c45da1ca ZW |
813 | /* Remove the `include' from /usr/local/lib/gcc.../include. |
814 | GCC_INCLUDE_DIR will always end in /include. */ | |
60893f43 ZW |
815 | int default_len = cpp_GCC_INCLUDE_DIR_len; |
816 | char *default_prefix = (char *) alloca (default_len + 1); | |
c45da1ca ZW |
817 | int specd_len = strlen (specd_prefix); |
818 | ||
60893f43 | 819 | memcpy (default_prefix, cpp_GCC_INCLUDE_DIR, default_len); |
c45da1ca ZW |
820 | default_prefix[default_len] = '\0'; |
821 | ||
60893f43 | 822 | for (p = cpp_include_defaults; p->fname; p++) |
c45da1ca ZW |
823 | { |
824 | /* Some standard dirs are only for C++. */ | |
825 | if (!p->cplusplus | |
ae79697b ZW |
826 | || (CPP_OPTION (pfile, cplusplus) |
827 | && !CPP_OPTION (pfile, no_standard_cplusplus_includes))) | |
c45da1ca ZW |
828 | { |
829 | /* Does this dir start with the prefix? */ | |
61d0346d | 830 | if (!memcmp (p->fname, default_prefix, default_len)) |
c45da1ca ZW |
831 | { |
832 | /* Yes; change prefix and add to search list. */ | |
833 | int flen = strlen (p->fname); | |
834 | int this_len = specd_len + flen - default_len; | |
835 | char *str = (char *) xmalloc (this_len + 1); | |
836 | memcpy (str, specd_prefix, specd_len); | |
837 | memcpy (str + specd_len, | |
838 | p->fname + default_len, | |
839 | flen - default_len + 1); | |
840 | ||
e33f6253 | 841 | append_include_chain (pfile, str, SYSTEM, p->cxx_aware); |
c45da1ca ZW |
842 | } |
843 | } | |
844 | } | |
845 | } | |
846 | ||
847 | /* Search ordinary names for GNU include directories. */ | |
60893f43 | 848 | for (p = cpp_include_defaults; p->fname; p++) |
c45da1ca ZW |
849 | { |
850 | /* Some standard dirs are only for C++. */ | |
851 | if (!p->cplusplus | |
ae79697b ZW |
852 | || (CPP_OPTION (pfile, cplusplus) |
853 | && !CPP_OPTION (pfile, no_standard_cplusplus_includes))) | |
c45da1ca | 854 | { |
c45da1ca | 855 | char *str = xstrdup (update_path (p->fname, p->component)); |
e33f6253 | 856 | append_include_chain (pfile, str, SYSTEM, p->cxx_aware); |
c45da1ca ZW |
857 | } |
858 | } | |
859 | } | |
860 | ||
4a58aab6 NB |
861 | /* Handles -imacro and -include from the command line. */ |
862 | static void | |
863 | do_includes (pfile, p, scan) | |
864 | cpp_reader *pfile; | |
865 | struct pending_option *p; | |
866 | int scan; | |
867 | { | |
868 | while (p) | |
869 | { | |
4a58aab6 NB |
870 | struct pending_option *q; |
871 | ||
05e81724 NB |
872 | /* Don't handle if -fpreprocessed. Later: maybe update this to |
873 | use the #include "" search path if cpp_read_file fails. */ | |
a4299d07 | 874 | if (CPP_OPTION (pfile, preprocessed)) |
05e81724 NB |
875 | cpp_error (pfile, "-include and -imacros cannot be used with -fpreprocessed"); |
876 | else if (_cpp_read_file (pfile, p->arg) && scan) | |
8dc4676d | 877 | cpp_scan_buffer_nooutput (pfile, 0); |
4a58aab6 NB |
878 | q = p->next; |
879 | free (p); | |
880 | p = q; | |
881 | } | |
882 | } | |
883 | ||
05e81724 NB |
884 | /* This is called after options have been processed. Setup for |
885 | processing input from the file named FNAME. (Use standard input if | |
886 | FNAME == NULL.) Return 1 on success, 0 on failure. */ | |
6de1e2a9 ZW |
887 | |
888 | int | |
93c80368 | 889 | cpp_start_read (pfile, fname) |
6de1e2a9 | 890 | cpp_reader *pfile; |
7ceb3598 | 891 | const char *fname; |
6de1e2a9 | 892 | { |
0b22d65c | 893 | struct pending_option *p, *q; |
6de1e2a9 | 894 | |
c45da1ca | 895 | /* Set up the include search path now. */ |
ae79697b | 896 | if (! CPP_OPTION (pfile, no_standard_includes)) |
7ca3d2b1 | 897 | init_standard_includes (pfile); |
c45da1ca | 898 | |
ae79697b | 899 | merge_include_chains (pfile); |
c45da1ca ZW |
900 | |
901 | /* With -v, print the list of dirs to search. */ | |
ae79697b | 902 | if (CPP_OPTION (pfile, verbose)) |
c45da1ca ZW |
903 | { |
904 | struct file_name_list *l; | |
905 | fprintf (stderr, _("#include \"...\" search starts here:\n")); | |
ae79697b | 906 | for (l = CPP_OPTION (pfile, quote_include); l; l = l->next) |
c45da1ca | 907 | { |
ae79697b | 908 | if (l == CPP_OPTION (pfile, bracket_include)) |
c45da1ca ZW |
909 | fprintf (stderr, _("#include <...> search starts here:\n")); |
910 | fprintf (stderr, " %s\n", l->name); | |
911 | } | |
912 | fprintf (stderr, _("End of search list.\n")); | |
913 | } | |
914 | ||
ae79697b ZW |
915 | if (CPP_OPTION (pfile, in_fname) == NULL |
916 | || *CPP_OPTION (pfile, in_fname) == 0) | |
6de1e2a9 | 917 | { |
ae79697b ZW |
918 | CPP_OPTION (pfile, in_fname) = fname; |
919 | if (CPP_OPTION (pfile, in_fname) == NULL) | |
920 | CPP_OPTION (pfile, in_fname) = ""; | |
6de1e2a9 | 921 | } |
ae79697b ZW |
922 | if (CPP_OPTION (pfile, out_fname) == NULL) |
923 | CPP_OPTION (pfile, out_fname) = ""; | |
6de1e2a9 | 924 | |
96302433 | 925 | if (CPP_OPTION (pfile, print_deps)) |
7855db7c JJ |
926 | /* Set the default target (if there is none already). */ |
927 | deps_add_default_target (pfile->deps, CPP_OPTION (pfile, in_fname)); | |
96302433 NB |
928 | |
929 | /* Open the main input file. This must be done early, so we have a | |
930 | buffer to stand on. */ | |
614c7d37 | 931 | if (!_cpp_read_file (pfile, fname)) |
c45da1ca ZW |
932 | return 0; |
933 | ||
05e81724 NB |
934 | /* If already preprocessed, don't install __LINE__, etc., and ignore |
935 | command line definitions and assertions. Handle -U's, -D's and | |
936 | -A's in the order they were seen. */ | |
937 | if (! CPP_OPTION (pfile, preprocessed)) | |
938 | init_builtins (pfile); | |
6de1e2a9 | 939 | |
ae79697b | 940 | p = CPP_OPTION (pfile, pending)->directive_head; |
0b22d65c | 941 | while (p) |
6de1e2a9 | 942 | { |
05e81724 NB |
943 | if (! CPP_OPTION (pfile, preprocessed)) |
944 | (*p->handler) (pfile, p->arg); | |
0b22d65c ZW |
945 | q = p->next; |
946 | free (p); | |
947 | p = q; | |
6de1e2a9 | 948 | } |
05e81724 | 949 | |
ae79697b | 950 | pfile->done_initializing = 1; |
041c3194 | 951 | |
6de1e2a9 | 952 | /* The -imacros files can be scanned now, but the -include files |
4a58aab6 NB |
953 | have to be pushed onto the buffer stack and processed later, |
954 | otherwise cppmain.c won't see the tokens. include_head was built | |
955 | up as a stack, and popping this stack onto the buffer stack means | |
956 | we preserve the order of the command line. */ | |
957 | do_includes (pfile, CPP_OPTION (pfile, pending)->imacros_head, 1); | |
958 | do_includes (pfile, CPP_OPTION (pfile, pending)->include_head, 0); | |
6de1e2a9 | 959 | |
ae79697b ZW |
960 | free (CPP_OPTION (pfile, pending)); |
961 | CPP_OPTION (pfile, pending) = NULL; | |
6de1e2a9 ZW |
962 | |
963 | return 1; | |
964 | } | |
965 | ||
2f638f96 | 966 | /* Use mkdeps.c to output dependency information. */ |
7ca3d2b1 NB |
967 | static void |
968 | output_deps (pfile) | |
969 | cpp_reader *pfile; | |
970 | { | |
971 | /* Stream on which to print the dependency information. */ | |
972 | FILE *deps_stream = 0; | |
973 | const char *deps_mode = CPP_OPTION (pfile, print_deps_append) ? "a" : "w"; | |
974 | ||
975 | if (CPP_OPTION (pfile, deps_file) == 0) | |
976 | deps_stream = stdout; | |
977 | else | |
978 | { | |
979 | deps_stream = fopen (CPP_OPTION (pfile, deps_file), deps_mode); | |
980 | if (deps_stream == 0) | |
981 | { | |
982 | cpp_notice_from_errno (pfile, CPP_OPTION (pfile, deps_file)); | |
983 | return; | |
984 | } | |
985 | } | |
986 | ||
987 | deps_write (pfile->deps, deps_stream, 72); | |
988 | ||
989 | if (CPP_OPTION (pfile, deps_phony_targets)) | |
990 | deps_phony_targets (pfile->deps, deps_stream); | |
991 | ||
992 | /* Don't close stdout. */ | |
993 | if (CPP_OPTION (pfile, deps_file)) | |
994 | { | |
995 | if (ferror (deps_stream) || fclose (deps_stream) != 0) | |
996 | cpp_fatal (pfile, "I/O error on output"); | |
997 | } | |
998 | } | |
999 | ||
6de1e2a9 ZW |
1000 | /* This is called at the end of preprocessing. It pops the |
1001 | last buffer and writes dependency output. It should also | |
1002 | clear macro definitions, such that you could call cpp_start_read | |
4a58aab6 | 1003 | with a new filename to restart processing. */ |
6de1e2a9 | 1004 | void |
93c80368 | 1005 | cpp_finish (pfile) |
6de1e2a9 ZW |
1006 | cpp_reader *pfile; |
1007 | { | |
f2d5f0cc ZW |
1008 | if (CPP_BUFFER (pfile)) |
1009 | { | |
1010 | cpp_ice (pfile, "buffers still stacked in cpp_finish"); | |
1011 | while (CPP_BUFFER (pfile)) | |
1012 | cpp_pop_buffer (pfile); | |
1013 | } | |
c1212d2f | 1014 | |
49e6c08e | 1015 | /* Don't write the deps file if preprocessing has failed. */ |
ae79697b | 1016 | if (CPP_OPTION (pfile, print_deps) && pfile->errors == 0) |
7ca3d2b1 | 1017 | output_deps (pfile); |
3caee4a8 | 1018 | |
d4506961 ZW |
1019 | /* Report on headers that could use multiple include guards. */ |
1020 | if (CPP_OPTION (pfile, print_include_names)) | |
c71f835b | 1021 | _cpp_report_missing_guards (pfile); |
6de1e2a9 ZW |
1022 | } |
1023 | ||
223dca6a | 1024 | static void |
ae79697b ZW |
1025 | new_pending_directive (pend, text, handler) |
1026 | struct cpp_pending *pend; | |
223dca6a | 1027 | const char *text; |
40eac643 | 1028 | cl_directive_handler handler; |
223dca6a RH |
1029 | { |
1030 | struct pending_option *o = (struct pending_option *) | |
1031 | xmalloc (sizeof (struct pending_option)); | |
1032 | ||
7ceb3598 | 1033 | o->arg = text; |
223dca6a | 1034 | o->next = NULL; |
40eac643 | 1035 | o->handler = handler; |
ae79697b | 1036 | APPEND (pend, directive, o); |
223dca6a RH |
1037 | } |
1038 | ||
ae79697b ZW |
1039 | /* Irix6 "cc -n32" and OSF4 cc have problems with char foo[] = ("string"); |
1040 | I.e. a const string initializer with parens around it. That is | |
1041 | what N_("string") resolves to, so we make no_* be macros instead. */ | |
1042 | #define no_arg N_("Argument missing after %s") | |
1043 | #define no_ass N_("Assertion missing after %s") | |
1044 | #define no_dir N_("Directory name missing after %s") | |
1045 | #define no_fil N_("File name missing after %s") | |
1046 | #define no_mac N_("Macro name missing after %s") | |
1047 | #define no_pth N_("Path name missing after %s") | |
6ab3e7dd | 1048 | #define no_num N_("Number missing after %s") |
03b9ab42 | 1049 | #define no_tgt N_("Target missing after %s") |
ae79697b ZW |
1050 | |
1051 | /* This is the list of all command line options, with the leading | |
1052 | "-" removed. It must be sorted in ASCII collating order. */ | |
1053 | #define COMMAND_LINE_OPTIONS \ | |
1054 | DEF_OPT("", 0, OPT_stdin_stdout) \ | |
1055 | DEF_OPT("$", 0, OPT_dollar) \ | |
1056 | DEF_OPT("+", 0, OPT_plus) \ | |
1057 | DEF_OPT("-help", 0, OPT__help) \ | |
91606ce2 | 1058 | DEF_OPT("-target-help", 0, OPT_target__help) \ |
ae79697b ZW |
1059 | DEF_OPT("-version", 0, OPT__version) \ |
1060 | DEF_OPT("A", no_ass, OPT_A) \ | |
1061 | DEF_OPT("C", 0, OPT_C) \ | |
1062 | DEF_OPT("D", no_mac, OPT_D) \ | |
1063 | DEF_OPT("H", 0, OPT_H) \ | |
1064 | DEF_OPT("I", no_dir, OPT_I) \ | |
1065 | DEF_OPT("M", 0, OPT_M) \ | |
e582248c | 1066 | DEF_OPT("MD", no_fil, OPT_MD) \ |
96302433 | 1067 | DEF_OPT("MF", no_fil, OPT_MF) \ |
ae79697b ZW |
1068 | DEF_OPT("MG", 0, OPT_MG) \ |
1069 | DEF_OPT("MM", 0, OPT_MM) \ | |
e582248c | 1070 | DEF_OPT("MMD", no_fil, OPT_MMD) \ |
a5a4ce3c | 1071 | DEF_OPT("MP", 0, OPT_MP) \ |
f7114e17 | 1072 | DEF_OPT("MQ", no_tgt, OPT_MQ) \ |
03b9ab42 | 1073 | DEF_OPT("MT", no_tgt, OPT_MT) \ |
ae79697b ZW |
1074 | DEF_OPT("P", 0, OPT_P) \ |
1075 | DEF_OPT("U", no_mac, OPT_U) \ | |
1076 | DEF_OPT("W", no_arg, OPT_W) /* arg optional */ \ | |
1077 | DEF_OPT("d", no_arg, OPT_d) \ | |
1078 | DEF_OPT("fleading-underscore", 0, OPT_fleading_underscore) \ | |
1079 | DEF_OPT("fno-leading-underscore", 0, OPT_fno_leading_underscore) \ | |
be768055 | 1080 | DEF_OPT("fno-operator-names", 0, OPT_fno_operator_names) \ |
ae79697b ZW |
1081 | DEF_OPT("fno-preprocessed", 0, OPT_fno_preprocessed) \ |
1082 | DEF_OPT("fno-show-column", 0, OPT_fno_show_column) \ | |
1083 | DEF_OPT("fpreprocessed", 0, OPT_fpreprocessed) \ | |
1084 | DEF_OPT("fshow-column", 0, OPT_fshow_column) \ | |
6ab3e7dd | 1085 | DEF_OPT("ftabstop=", no_num, OPT_ftabstop) \ |
ae79697b ZW |
1086 | DEF_OPT("h", 0, OPT_h) \ |
1087 | DEF_OPT("idirafter", no_dir, OPT_idirafter) \ | |
1088 | DEF_OPT("imacros", no_fil, OPT_imacros) \ | |
1089 | DEF_OPT("include", no_fil, OPT_include) \ | |
1090 | DEF_OPT("iprefix", no_pth, OPT_iprefix) \ | |
1091 | DEF_OPT("isystem", no_dir, OPT_isystem) \ | |
1092 | DEF_OPT("iwithprefix", no_dir, OPT_iwithprefix) \ | |
1093 | DEF_OPT("iwithprefixbefore", no_dir, OPT_iwithprefixbefore) \ | |
1094 | DEF_OPT("lang-asm", 0, OPT_lang_asm) \ | |
1095 | DEF_OPT("lang-c", 0, OPT_lang_c) \ | |
1096 | DEF_OPT("lang-c++", 0, OPT_lang_cplusplus) \ | |
1097 | DEF_OPT("lang-c89", 0, OPT_lang_c89) \ | |
ae79697b ZW |
1098 | DEF_OPT("lang-objc", 0, OPT_lang_objc) \ |
1099 | DEF_OPT("lang-objc++", 0, OPT_lang_objcplusplus) \ | |
1100 | DEF_OPT("nostdinc", 0, OPT_nostdinc) \ | |
1101 | DEF_OPT("nostdinc++", 0, OPT_nostdincplusplus) \ | |
1102 | DEF_OPT("o", no_fil, OPT_o) \ | |
1103 | DEF_OPT("pedantic", 0, OPT_pedantic) \ | |
1104 | DEF_OPT("pedantic-errors", 0, OPT_pedantic_errors) \ | |
1105 | DEF_OPT("remap", 0, OPT_remap) \ | |
dd07b884 | 1106 | DEF_OPT("std=c++98", 0, OPT_std_cplusplus98) \ |
ae79697b ZW |
1107 | DEF_OPT("std=c89", 0, OPT_std_c89) \ |
1108 | DEF_OPT("std=c99", 0, OPT_std_c99) \ | |
1109 | DEF_OPT("std=c9x", 0, OPT_std_c9x) \ | |
1110 | DEF_OPT("std=gnu89", 0, OPT_std_gnu89) \ | |
1111 | DEF_OPT("std=gnu99", 0, OPT_std_gnu99) \ | |
1112 | DEF_OPT("std=gnu9x", 0, OPT_std_gnu9x) \ | |
1113 | DEF_OPT("std=iso9899:1990", 0, OPT_std_iso9899_1990) \ | |
1114 | DEF_OPT("std=iso9899:199409", 0, OPT_std_iso9899_199409) \ | |
1115 | DEF_OPT("std=iso9899:1999", 0, OPT_std_iso9899_1999) \ | |
1116 | DEF_OPT("std=iso9899:199x", 0, OPT_std_iso9899_199x) \ | |
ae79697b ZW |
1117 | DEF_OPT("trigraphs", 0, OPT_trigraphs) \ |
1118 | DEF_OPT("v", 0, OPT_v) \ | |
f4cdc368 | 1119 | DEF_OPT("version", 0, OPT_version) \ |
ae79697b ZW |
1120 | DEF_OPT("w", 0, OPT_w) |
1121 | ||
1122 | #define DEF_OPT(text, msg, code) code, | |
e23c0ba3 ZW |
1123 | enum opt_code |
1124 | { | |
ae79697b | 1125 | COMMAND_LINE_OPTIONS |
e23c0ba3 ZW |
1126 | N_OPTS |
1127 | }; | |
ae79697b | 1128 | #undef DEF_OPT |
e23c0ba3 ZW |
1129 | |
1130 | struct cl_option | |
1131 | { | |
1132 | const char *opt_text; | |
1133 | const char *msg; | |
1134 | size_t opt_len; | |
1135 | enum opt_code opt_code; | |
1136 | }; | |
1137 | ||
ae79697b | 1138 | #define DEF_OPT(text, msg, code) { text, msg, sizeof(text) - 1, code }, |
e23c0ba3 ZW |
1139 | #ifdef HOST_EBCDIC |
1140 | static struct cl_option cl_options[] = | |
1141 | #else | |
1142 | static const struct cl_option cl_options[] = | |
1143 | #endif | |
1144 | { | |
ae79697b | 1145 | COMMAND_LINE_OPTIONS |
e23c0ba3 ZW |
1146 | }; |
1147 | #undef DEF_OPT | |
ae79697b | 1148 | #undef COMMAND_LINE_OPTIONS |
e23c0ba3 ZW |
1149 | |
1150 | /* Perform a binary search to find which, if any, option the given | |
1151 | command-line matches. Returns its index in the option array, | |
1152 | negative on failure. Complications arise since some options can be | |
1153 | suffixed with an argument, and multiple complete matches can occur, | |
05e81724 NB |
1154 | e.g. -iwithprefix and -iwithprefixbefore. Moreover, we need to |
1155 | accept options beginning with -W that we do not recognise, but not | |
1156 | to swallow any subsequent command line argument; this is handled as | |
1157 | special cases in cpp_handle_option. */ | |
e23c0ba3 ZW |
1158 | static int |
1159 | parse_option (input) | |
1160 | const char *input; | |
1161 | { | |
1162 | unsigned int md, mn, mx; | |
1163 | size_t opt_len; | |
1164 | int comp; | |
1165 | ||
1166 | mn = 0; | |
1167 | mx = N_OPTS; | |
1168 | ||
1169 | while (mx > mn) | |
1170 | { | |
1171 | md = (mn + mx) / 2; | |
ae79697b | 1172 | |
e23c0ba3 | 1173 | opt_len = cl_options[md].opt_len; |
61d0346d | 1174 | comp = memcmp (input, cl_options[md].opt_text, opt_len); |
ae79697b | 1175 | |
e23c0ba3 ZW |
1176 | if (comp > 0) |
1177 | mn = md + 1; | |
1178 | else if (comp < 0) | |
1179 | mx = md; | |
1180 | else | |
1181 | { | |
1182 | if (input[opt_len] == '\0') | |
1183 | return md; | |
1184 | /* We were passed more text. If the option takes an argument, | |
1185 | we may match a later option or we may have been passed the | |
1186 | argument. The longest possible option match succeeds. | |
1187 | If the option takes no arguments we have not matched and | |
4a58aab6 | 1188 | continue the search (e.g. input="stdc++" match was "stdc"). */ |
e23c0ba3 ZW |
1189 | mn = md + 1; |
1190 | if (cl_options[md].msg) | |
1191 | { | |
1192 | /* Scan forwards. If we get an exact match, return it. | |
1193 | Otherwise, return the longest option-accepting match. | |
4a58aab6 | 1194 | This loops no more than twice with current options. */ |
e23c0ba3 ZW |
1195 | mx = md; |
1196 | for (; mn < N_OPTS; mn++) | |
1197 | { | |
1198 | opt_len = cl_options[mn].opt_len; | |
61d0346d | 1199 | if (memcmp (input, cl_options[mn].opt_text, opt_len)) |
e23c0ba3 ZW |
1200 | break; |
1201 | if (input[opt_len] == '\0') | |
1202 | return mn; | |
1203 | if (cl_options[mn].msg) | |
1204 | mx = mn; | |
1205 | } | |
1206 | return mx; | |
1207 | } | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | return -1; | |
1212 | } | |
1213 | ||
6de1e2a9 ZW |
1214 | /* Handle one command-line option in (argc, argv). |
1215 | Can be called multiple times, to handle multiple sets of options. | |
1216 | Returns number of strings consumed. */ | |
c8d8ed65 | 1217 | |
2c0accc9 ZW |
1218 | int |
1219 | cpp_handle_option (pfile, argc, argv) | |
6de1e2a9 ZW |
1220 | cpp_reader *pfile; |
1221 | int argc; | |
1222 | char **argv; | |
1223 | { | |
6de1e2a9 | 1224 | int i = 0; |
f8f769ea | 1225 | struct cpp_pending *pend = CPP_OPTION (pfile, pending); |
6de1e2a9 | 1226 | |
0b22d65c ZW |
1227 | if (argv[i][0] != '-') |
1228 | { | |
ae79697b ZW |
1229 | if (CPP_OPTION (pfile, out_fname) != NULL) |
1230 | cpp_fatal (pfile, "Too many arguments. Type %s --help for usage info", | |
1231 | progname); | |
1232 | else if (CPP_OPTION (pfile, in_fname) != NULL) | |
1233 | CPP_OPTION (pfile, out_fname) = argv[i]; | |
0b22d65c | 1234 | else |
ae79697b | 1235 | CPP_OPTION (pfile, in_fname) = argv[i]; |
0b22d65c ZW |
1236 | } |
1237 | else | |
e23c0ba3 ZW |
1238 | { |
1239 | enum opt_code opt_code; | |
1240 | int opt_index; | |
7ceb3598 | 1241 | const char *arg = 0; |
e23c0ba3 | 1242 | |
4a58aab6 | 1243 | /* Skip over '-'. */ |
e23c0ba3 ZW |
1244 | opt_index = parse_option (&argv[i][1]); |
1245 | if (opt_index < 0) | |
1246 | return i; | |
1247 | ||
1248 | opt_code = cl_options[opt_index].opt_code; | |
1249 | if (cl_options[opt_index].msg) | |
1250 | { | |
1251 | arg = &argv[i][cl_options[opt_index].opt_len + 1]; | |
1252 | ||
5c5d1ea0 | 1253 | /* Yuk. Special case for -W as it must not swallow |
e23c0ba3 | 1254 | up any following argument. If this becomes common, add |
4a58aab6 | 1255 | another field to the cl_options table. */ |
5c5d1ea0 | 1256 | if (arg[0] == '\0' && opt_code != OPT_W) |
e23c0ba3 ZW |
1257 | { |
1258 | arg = argv[++i]; | |
1259 | if (!arg) | |
1260 | { | |
d88b89e5 | 1261 | cpp_fatal (pfile, cl_options[opt_index].msg, argv[i - 1]); |
e23c0ba3 ZW |
1262 | return argc; |
1263 | } | |
1264 | } | |
1265 | } | |
ae79697b | 1266 | |
e23c0ba3 ZW |
1267 | switch (opt_code) |
1268 | { | |
4a58aab6 | 1269 | case N_OPTS: /* Shut GCC up. */ |
e23c0ba3 ZW |
1270 | break; |
1271 | case OPT_fleading_underscore: | |
771c4df3 | 1272 | CPP_OPTION (pfile, user_label_prefix) = "_"; |
e23c0ba3 ZW |
1273 | break; |
1274 | case OPT_fno_leading_underscore: | |
771c4df3 | 1275 | CPP_OPTION (pfile, user_label_prefix) = ""; |
e23c0ba3 | 1276 | break; |
be768055 JJ |
1277 | case OPT_fno_operator_names: |
1278 | CPP_OPTION (pfile, operator_names) = 0; | |
1279 | break; | |
e23c0ba3 | 1280 | case OPT_fpreprocessed: |
ae79697b | 1281 | CPP_OPTION (pfile, preprocessed) = 1; |
e23c0ba3 ZW |
1282 | break; |
1283 | case OPT_fno_preprocessed: | |
ae79697b ZW |
1284 | CPP_OPTION (pfile, preprocessed) = 0; |
1285 | break; | |
1286 | case OPT_fshow_column: | |
1287 | CPP_OPTION (pfile, show_column) = 1; | |
1288 | break; | |
1289 | case OPT_fno_show_column: | |
1290 | CPP_OPTION (pfile, show_column) = 0; | |
e23c0ba3 | 1291 | break; |
6ab3e7dd NB |
1292 | case OPT_ftabstop: |
1293 | /* Silently ignore empty string, non-longs and silly values. */ | |
1294 | if (arg[0] != '\0') | |
1295 | { | |
1296 | char *endptr; | |
1297 | long tabstop = strtol (arg, &endptr, 10); | |
1298 | if (*endptr == '\0' && tabstop >= 1 && tabstop <= 100) | |
1299 | CPP_OPTION (pfile, tabstop) = tabstop; | |
1300 | } | |
1301 | break; | |
e23c0ba3 | 1302 | case OPT_w: |
ae79697b | 1303 | CPP_OPTION (pfile, inhibit_warnings) = 1; |
e23c0ba3 | 1304 | break; |
e23c0ba3 ZW |
1305 | case OPT_h: |
1306 | case OPT__help: | |
1307 | print_help (); | |
7e96d768 | 1308 | CPP_OPTION (pfile, help_only) = 1; |
e23c0ba3 | 1309 | break; |
91606ce2 | 1310 | case OPT_target__help: |
f4cdc368 ZW |
1311 | /* Print if any target specific options. cpplib has none, but |
1312 | make sure help_only gets set. */ | |
7e96d768 | 1313 | CPP_OPTION (pfile, help_only) = 1; |
91606ce2 | 1314 | break; |
f4cdc368 ZW |
1315 | |
1316 | /* --version inhibits compilation, -version doesn't. -v means | |
1317 | verbose and -version. Historical reasons, don't ask. */ | |
e23c0ba3 | 1318 | case OPT__version: |
7e96d768 | 1319 | CPP_OPTION (pfile, help_only) = 1; |
f4cdc368 ZW |
1320 | goto version; |
1321 | case OPT_v: | |
1322 | CPP_OPTION (pfile, verbose) = 1; | |
1323 | goto version; | |
1324 | ||
1325 | case OPT_version: | |
1326 | version: | |
1327 | fprintf (stderr, _("GNU CPP version %s (cpplib)"), version_string); | |
1328 | #ifdef TARGET_VERSION | |
1329 | TARGET_VERSION; | |
1330 | #endif | |
1331 | fputc ('\n', stderr); | |
e23c0ba3 | 1332 | break; |
f4cdc368 | 1333 | |
e23c0ba3 | 1334 | case OPT_C: |
ae79697b | 1335 | CPP_OPTION (pfile, discard_comments) = 0; |
e23c0ba3 ZW |
1336 | break; |
1337 | case OPT_P: | |
ae79697b | 1338 | CPP_OPTION (pfile, no_line_commands) = 1; |
e23c0ba3 | 1339 | break; |
4a58aab6 | 1340 | case OPT_dollar: /* Don't include $ in identifiers. */ |
ae79697b | 1341 | CPP_OPTION (pfile, dollars_in_ident) = 0; |
e23c0ba3 ZW |
1342 | break; |
1343 | case OPT_H: | |
ae79697b | 1344 | CPP_OPTION (pfile, print_include_names) = 1; |
e23c0ba3 ZW |
1345 | break; |
1346 | case OPT_D: | |
f8f769ea | 1347 | new_pending_directive (pend, arg, cpp_define); |
e23c0ba3 ZW |
1348 | break; |
1349 | case OPT_pedantic_errors: | |
ae79697b | 1350 | CPP_OPTION (pfile, pedantic_errors) = 1; |
e23c0ba3 ZW |
1351 | /* fall through */ |
1352 | case OPT_pedantic: | |
ae79697b | 1353 | CPP_OPTION (pfile, pedantic) = 1; |
e23c0ba3 | 1354 | break; |
e23c0ba3 | 1355 | case OPT_trigraphs: |
ae79697b | 1356 | CPP_OPTION (pfile, trigraphs) = 1; |
e23c0ba3 ZW |
1357 | break; |
1358 | case OPT_plus: | |
ae79697b ZW |
1359 | CPP_OPTION (pfile, cplusplus) = 1; |
1360 | CPP_OPTION (pfile, cplusplus_comments) = 1; | |
e23c0ba3 ZW |
1361 | break; |
1362 | case OPT_remap: | |
ae79697b | 1363 | CPP_OPTION (pfile, remap) = 1; |
e23c0ba3 ZW |
1364 | break; |
1365 | case OPT_iprefix: | |
ae79697b ZW |
1366 | CPP_OPTION (pfile, include_prefix) = arg; |
1367 | CPP_OPTION (pfile, include_prefix_len) = strlen (arg); | |
e23c0ba3 ZW |
1368 | break; |
1369 | case OPT_lang_c: | |
dd07b884 | 1370 | set_lang (pfile, CLK_GNUC89); |
e23c0ba3 | 1371 | break; |
e23c0ba3 | 1372 | case OPT_lang_cplusplus: |
dd07b884 | 1373 | set_lang (pfile, CLK_GNUCXX); |
e23c0ba3 | 1374 | break; |
f8f769ea | 1375 | case OPT_lang_objc: |
dd07b884 | 1376 | set_lang (pfile, CLK_OBJC); |
e23c0ba3 | 1377 | break; |
dd07b884 NB |
1378 | case OPT_lang_objcplusplus: |
1379 | set_lang (pfile, CLK_OBJCXX); | |
e23c0ba3 | 1380 | break; |
dd07b884 NB |
1381 | case OPT_lang_asm: |
1382 | set_lang (pfile, CLK_ASM); | |
e23c0ba3 | 1383 | break; |
dd07b884 NB |
1384 | case OPT_std_cplusplus98: |
1385 | set_lang (pfile, CLK_CXX98); | |
e23c0ba3 ZW |
1386 | break; |
1387 | case OPT_std_gnu89: | |
dd07b884 | 1388 | set_lang (pfile, CLK_GNUC89); |
e23c0ba3 ZW |
1389 | break; |
1390 | case OPT_std_gnu9x: | |
1391 | case OPT_std_gnu99: | |
dd07b884 | 1392 | set_lang (pfile, CLK_GNUC99); |
e23c0ba3 ZW |
1393 | break; |
1394 | case OPT_std_iso9899_199409: | |
dd07b884 NB |
1395 | set_lang (pfile, CLK_STDC94); |
1396 | break; | |
e23c0ba3 ZW |
1397 | case OPT_std_iso9899_1990: |
1398 | case OPT_std_c89: | |
9b55f29a | 1399 | case OPT_lang_c89: |
dd07b884 | 1400 | set_lang (pfile, CLK_STDC89); |
e23c0ba3 ZW |
1401 | break; |
1402 | case OPT_std_iso9899_199x: | |
1403 | case OPT_std_iso9899_1999: | |
1404 | case OPT_std_c9x: | |
1405 | case OPT_std_c99: | |
dd07b884 NB |
1406 | set_lang (pfile, CLK_STDC99); |
1407 | break; | |
1408 | case OPT_nostdinc: | |
1409 | /* -nostdinc causes no default include directories. | |
1410 | You must specify all include-file directories with -I. */ | |
1411 | CPP_OPTION (pfile, no_standard_includes) = 1; | |
1412 | break; | |
1413 | case OPT_nostdincplusplus: | |
1414 | /* -nostdinc++ causes no default C++-specific include directories. */ | |
1415 | CPP_OPTION (pfile, no_standard_cplusplus_includes) = 1; | |
e23c0ba3 ZW |
1416 | break; |
1417 | case OPT_o: | |
ae79697b | 1418 | if (CPP_OPTION (pfile, out_fname) != NULL) |
0b22d65c | 1419 | { |
e23c0ba3 ZW |
1420 | cpp_fatal (pfile, "Output filename specified twice"); |
1421 | return argc; | |
1422 | } | |
ae79697b ZW |
1423 | CPP_OPTION (pfile, out_fname) = arg; |
1424 | if (!strcmp (CPP_OPTION (pfile, out_fname), "-")) | |
1425 | CPP_OPTION (pfile, out_fname) = ""; | |
e23c0ba3 | 1426 | break; |
e23c0ba3 | 1427 | case OPT_stdin_stdout: |
4a58aab6 | 1428 | /* JF handle '-' as file name meaning stdin or stdout. */ |
ae79697b ZW |
1429 | if (CPP_OPTION (pfile, in_fname) == NULL) |
1430 | CPP_OPTION (pfile, in_fname) = ""; | |
1431 | else if (CPP_OPTION (pfile, out_fname) == NULL) | |
1432 | CPP_OPTION (pfile, out_fname) = ""; | |
e23c0ba3 ZW |
1433 | break; |
1434 | case OPT_d: | |
1435 | /* Args to -d specify what parts of macros to dump. | |
1436 | Silently ignore unrecognised options; they may | |
4a58aab6 | 1437 | be aimed at the compiler proper. */ |
e23c0ba3 ZW |
1438 | { |
1439 | char c; | |
ae79697b | 1440 | |
e23c0ba3 ZW |
1441 | while ((c = *arg++) != '\0') |
1442 | switch (c) | |
1443 | { | |
1444 | case 'M': | |
ae79697b ZW |
1445 | CPP_OPTION (pfile, dump_macros) = dump_only; |
1446 | CPP_OPTION (pfile, no_output) = 1; | |
0b22d65c ZW |
1447 | break; |
1448 | case 'N': | |
ae79697b | 1449 | CPP_OPTION (pfile, dump_macros) = dump_names; |
0b22d65c ZW |
1450 | break; |
1451 | case 'D': | |
ae79697b | 1452 | CPP_OPTION (pfile, dump_macros) = dump_definitions; |
0b22d65c ZW |
1453 | break; |
1454 | case 'I': | |
ae79697b | 1455 | CPP_OPTION (pfile, dump_includes) = 1; |
0b22d65c ZW |
1456 | break; |
1457 | } | |
e23c0ba3 ZW |
1458 | } |
1459 | break; | |
96302433 | 1460 | |
e23c0ba3 | 1461 | case OPT_MG: |
ae79697b | 1462 | CPP_OPTION (pfile, print_deps_missing_files) = 1; |
e23c0ba3 ZW |
1463 | break; |
1464 | case OPT_M: | |
96302433 NB |
1465 | CPP_OPTION (pfile, print_deps) = 2; |
1466 | break; | |
e23c0ba3 | 1467 | case OPT_MM: |
96302433 | 1468 | CPP_OPTION (pfile, print_deps) = 1; |
e23c0ba3 | 1469 | break; |
96302433 NB |
1470 | case OPT_MF: |
1471 | CPP_OPTION (pfile, deps_file) = arg; | |
1472 | break; | |
1473 | case OPT_MP: | |
a5a4ce3c NB |
1474 | CPP_OPTION (pfile, deps_phony_targets) = 1; |
1475 | break; | |
f7114e17 | 1476 | case OPT_MQ: |
03b9ab42 | 1477 | case OPT_MT: |
f7114e17 NB |
1478 | /* Add a target. -MQ quotes for Make. */ |
1479 | deps_add_target (pfile->deps, arg, opt_code == OPT_MQ); | |
03b9ab42 NB |
1480 | break; |
1481 | ||
e582248c NB |
1482 | /* -MD and -MMD for cpp0 are deprecated and undocumented |
1483 | (use -M or -MM with -MF instead), and probably should be | |
1484 | removed with the next major GCC version. For the moment | |
1485 | we allow these for the benefit of Automake 1.4, which | |
1486 | uses these when dependency tracking is enabled. Automake | |
1487 | 1.5 will fix this. */ | |
1488 | case OPT_MD: | |
1489 | CPP_OPTION (pfile, print_deps) = 2; | |
1490 | CPP_OPTION (pfile, deps_file) = arg; | |
1491 | break; | |
1492 | case OPT_MMD: | |
1493 | CPP_OPTION (pfile, print_deps) = 1; | |
1494 | CPP_OPTION (pfile, deps_file) = arg; | |
1495 | break; | |
1496 | ||
e23c0ba3 | 1497 | case OPT_A: |
e1e97c4f | 1498 | if (arg[0] == '-') |
0b22d65c | 1499 | { |
e1e97c4f NB |
1500 | /* -A with an argument beginning with '-' acts as |
1501 | #unassert on whatever immediately follows the '-'. | |
1502 | If "-" is the whole argument, we eliminate all | |
1503 | predefined macros and assertions, including those | |
1504 | that were specified earlier on the command line. | |
1505 | That way we can get rid of any that were passed | |
1506 | automatically in from GCC. */ | |
1507 | ||
1508 | if (arg[1] == '\0') | |
0b22d65c | 1509 | { |
e1e97c4f NB |
1510 | struct pending_option *o1, *o2; |
1511 | ||
e33f6253 | 1512 | o1 = pend->directive_head; |
e1e97c4f NB |
1513 | while (o1) |
1514 | { | |
1515 | o2 = o1->next; | |
1516 | free (o1); | |
1517 | o1 = o2; | |
1518 | } | |
e33f6253 NB |
1519 | pend->directive_head = NULL; |
1520 | pend->directive_tail = NULL; | |
0b22d65c | 1521 | } |
e1e97c4f | 1522 | else |
e33f6253 | 1523 | new_pending_directive (pend, arg + 1, cpp_unassert); |
6de1e2a9 | 1524 | } |
e1e97c4f | 1525 | else |
e33f6253 | 1526 | new_pending_directive (pend, arg, cpp_assert); |
e23c0ba3 ZW |
1527 | break; |
1528 | case OPT_U: | |
e33f6253 | 1529 | new_pending_directive (pend, arg, cpp_undef); |
e23c0ba3 ZW |
1530 | break; |
1531 | case OPT_I: /* Add directory to path for includes. */ | |
1532 | if (!strcmp (arg, "-")) | |
1533 | { | |
1534 | /* -I- means: | |
1535 | Use the preceding -I directories for #include "..." | |
1536 | but not #include <...>. | |
1537 | Don't search the directory of the present file | |
1538 | for #include "...". (Note that -I. -I- is not the same as | |
1539 | the default setup; -I. uses the compiler's working dir.) */ | |
ae79697b | 1540 | if (! CPP_OPTION (pfile, ignore_srcdir)) |
e23c0ba3 | 1541 | { |
ae79697b ZW |
1542 | pend->quote_head = pend->brack_head; |
1543 | pend->quote_tail = pend->brack_tail; | |
1544 | pend->brack_head = 0; | |
1545 | pend->brack_tail = 0; | |
1546 | CPP_OPTION (pfile, ignore_srcdir) = 1; | |
e23c0ba3 ZW |
1547 | } |
1548 | else | |
1549 | { | |
1550 | cpp_fatal (pfile, "-I- specified twice"); | |
1551 | return argc; | |
1552 | } | |
1553 | } | |
1554 | else | |
e33f6253 | 1555 | append_include_chain (pfile, xstrdup (arg), BRACKET, 0); |
e23c0ba3 ZW |
1556 | break; |
1557 | case OPT_isystem: | |
1558 | /* Add directory to beginning of system include path, as a system | |
4a58aab6 | 1559 | include directory. */ |
e33f6253 | 1560 | append_include_chain (pfile, xstrdup (arg), SYSTEM, 0); |
e23c0ba3 ZW |
1561 | break; |
1562 | case OPT_include: | |
1563 | { | |
1564 | struct pending_option *o = (struct pending_option *) | |
1565 | xmalloc (sizeof (struct pending_option)); | |
1566 | o->arg = arg; | |
1567 | ||
1568 | /* This list has to be built in reverse order so that | |
1569 | when cpp_start_read pushes all the -include files onto | |
1570 | the buffer stack, they will be scanned in forward order. */ | |
e33f6253 NB |
1571 | o->next = pend->include_head; |
1572 | pend->include_head = o; | |
e23c0ba3 ZW |
1573 | } |
1574 | break; | |
1575 | case OPT_imacros: | |
1576 | { | |
1577 | struct pending_option *o = (struct pending_option *) | |
1578 | xmalloc (sizeof (struct pending_option)); | |
1579 | o->arg = arg; | |
1580 | o->next = NULL; | |
ae79697b | 1581 | |
e33f6253 | 1582 | APPEND (pend, imacros, o); |
e23c0ba3 ZW |
1583 | } |
1584 | break; | |
1585 | case OPT_iwithprefix: | |
1586 | /* Add directory to end of path for includes, | |
1587 | with the default prefix at the front of its name. */ | |
1588 | /* fall through */ | |
1589 | case OPT_iwithprefixbefore: | |
1590 | /* Add directory to main path for includes, | |
1591 | with the default prefix at the front of its name. */ | |
1592 | { | |
1593 | char *fname; | |
1594 | int len; | |
ae79697b | 1595 | |
e23c0ba3 | 1596 | len = strlen (arg); |
ae79697b ZW |
1597 | |
1598 | if (CPP_OPTION (pfile, include_prefix) != 0) | |
e23c0ba3 | 1599 | { |
ae79697b ZW |
1600 | size_t ipl = CPP_OPTION (pfile, include_prefix_len); |
1601 | fname = xmalloc (ipl + len + 1); | |
1602 | memcpy (fname, CPP_OPTION (pfile, include_prefix), ipl); | |
1603 | memcpy (fname + ipl, arg, len + 1); | |
e23c0ba3 | 1604 | } |
60893f43 | 1605 | else if (cpp_GCC_INCLUDE_DIR_len) |
e23c0ba3 | 1606 | { |
60893f43 ZW |
1607 | fname = xmalloc (cpp_GCC_INCLUDE_DIR_len + len + 1); |
1608 | memcpy (fname, cpp_GCC_INCLUDE_DIR, cpp_GCC_INCLUDE_DIR_len); | |
1609 | memcpy (fname + cpp_GCC_INCLUDE_DIR_len, arg, len + 1); | |
e23c0ba3 | 1610 | } |
60893f43 ZW |
1611 | else |
1612 | fname = xstrdup (arg); | |
ae79697b | 1613 | |
e33f6253 | 1614 | append_include_chain (pfile, fname, |
e23c0ba3 ZW |
1615 | opt_code == OPT_iwithprefix ? SYSTEM: BRACKET, 0); |
1616 | } | |
1617 | break; | |
1618 | case OPT_idirafter: | |
1619 | /* Add directory to end of path for includes. */ | |
e33f6253 | 1620 | append_include_chain (pfile, xstrdup (arg), AFTER, 0); |
e23c0ba3 ZW |
1621 | break; |
1622 | case OPT_W: | |
4a58aab6 | 1623 | /* Silently ignore unrecognised options. */ |
e23c0ba3 | 1624 | if (!strcmp (argv[i], "-Wall")) |
0b22d65c | 1625 | { |
ae79697b ZW |
1626 | CPP_OPTION (pfile, warn_trigraphs) = 1; |
1627 | CPP_OPTION (pfile, warn_comments) = 1; | |
0b22d65c | 1628 | } |
e23c0ba3 | 1629 | else if (!strcmp (argv[i], "-Wtraditional")) |
07aa0b04 | 1630 | CPP_OPTION (pfile, warn_traditional) = 1; |
e23c0ba3 | 1631 | else if (!strcmp (argv[i], "-Wtrigraphs")) |
ae79697b | 1632 | CPP_OPTION (pfile, warn_trigraphs) = 1; |
e23c0ba3 | 1633 | else if (!strcmp (argv[i], "-Wcomment")) |
ae79697b | 1634 | CPP_OPTION (pfile, warn_comments) = 1; |
e23c0ba3 | 1635 | else if (!strcmp (argv[i], "-Wcomments")) |
ae79697b | 1636 | CPP_OPTION (pfile, warn_comments) = 1; |
e23c0ba3 | 1637 | else if (!strcmp (argv[i], "-Wundef")) |
ae79697b | 1638 | CPP_OPTION (pfile, warn_undef) = 1; |
e23c0ba3 | 1639 | else if (!strcmp (argv[i], "-Wimport")) |
ae79697b | 1640 | CPP_OPTION (pfile, warn_import) = 1; |
e23c0ba3 | 1641 | else if (!strcmp (argv[i], "-Werror")) |
ae79697b | 1642 | CPP_OPTION (pfile, warnings_are_errors) = 1; |
317639a8 BC |
1643 | else if (!strcmp (argv[i], "-Wsystem-headers")) |
1644 | CPP_OPTION (pfile, warn_system_headers) = 1; | |
e23c0ba3 | 1645 | else if (!strcmp (argv[i], "-Wno-traditional")) |
07aa0b04 | 1646 | CPP_OPTION (pfile, warn_traditional) = 0; |
e23c0ba3 | 1647 | else if (!strcmp (argv[i], "-Wno-trigraphs")) |
ae79697b | 1648 | CPP_OPTION (pfile, warn_trigraphs) = 0; |
e23c0ba3 | 1649 | else if (!strcmp (argv[i], "-Wno-comment")) |
ae79697b | 1650 | CPP_OPTION (pfile, warn_comments) = 0; |
e23c0ba3 | 1651 | else if (!strcmp (argv[i], "-Wno-comments")) |
ae79697b | 1652 | CPP_OPTION (pfile, warn_comments) = 0; |
e23c0ba3 | 1653 | else if (!strcmp (argv[i], "-Wno-undef")) |
ae79697b | 1654 | CPP_OPTION (pfile, warn_undef) = 0; |
e23c0ba3 | 1655 | else if (!strcmp (argv[i], "-Wno-import")) |
ae79697b | 1656 | CPP_OPTION (pfile, warn_import) = 0; |
e23c0ba3 | 1657 | else if (!strcmp (argv[i], "-Wno-error")) |
ae79697b | 1658 | CPP_OPTION (pfile, warnings_are_errors) = 0; |
317639a8 BC |
1659 | else if (!strcmp (argv[i], "-Wno-system-headers")) |
1660 | CPP_OPTION (pfile, warn_system_headers) = 0; | |
e23c0ba3 ZW |
1661 | break; |
1662 | } | |
1663 | } | |
6de1e2a9 | 1664 | return i + 1; |
e23c0ba3 | 1665 | } |
0b22d65c | 1666 | |
6de1e2a9 ZW |
1667 | /* Handle command-line options in (argc, argv). |
1668 | Can be called multiple times, to handle multiple sets of options. | |
1669 | Returns if an unrecognized option is seen. | |
1670 | Returns number of strings consumed. */ | |
6de1e2a9 ZW |
1671 | int |
1672 | cpp_handle_options (pfile, argc, argv) | |
1673 | cpp_reader *pfile; | |
1674 | int argc; | |
1675 | char **argv; | |
1676 | { | |
1677 | int i; | |
1678 | int strings_processed; | |
e23c0ba3 | 1679 | |
6de1e2a9 ZW |
1680 | for (i = 0; i < argc; i += strings_processed) |
1681 | { | |
2c0accc9 | 1682 | strings_processed = cpp_handle_option (pfile, argc - i, argv + i); |
6de1e2a9 ZW |
1683 | if (strings_processed == 0) |
1684 | break; | |
1685 | } | |
96302433 | 1686 | |
6de1e2a9 ZW |
1687 | return i; |
1688 | } | |
1689 | ||
96302433 NB |
1690 | /* Extra processing when all options are parsed, after all calls to |
1691 | cpp_handle_option[s]. Consistency checks etc. */ | |
1692 | void | |
1693 | cpp_post_options (pfile) | |
1694 | cpp_reader *pfile; | |
1695 | { | |
1696 | /* -Wtraditional is not useful in C++ mode. */ | |
1697 | if (CPP_OPTION (pfile, cplusplus)) | |
1698 | CPP_OPTION (pfile, warn_traditional) = 0; | |
1699 | ||
1700 | /* Set this if it hasn't been set already. */ | |
1701 | if (CPP_OPTION (pfile, user_label_prefix) == NULL) | |
1702 | CPP_OPTION (pfile, user_label_prefix) = USER_LABEL_PREFIX; | |
1703 | ||
1704 | /* We need to do this after option processing and before | |
1705 | cpp_start_read, as cppmain.c relies on the options->no_output to | |
1706 | set its callbacks correctly before calling cpp_start_read. */ | |
1707 | init_dependency_output (pfile); | |
1708 | ||
e582248c NB |
1709 | /* After checking the environment variables, check if -M or -MM has |
1710 | not been specified, but other -M options have. */ | |
1711 | if (CPP_OPTION (pfile, print_deps) == 0 && | |
1712 | (CPP_OPTION (pfile, print_deps_missing_files) | |
1713 | || CPP_OPTION (pfile, deps_file) | |
1714 | || CPP_OPTION (pfile, deps_phony_targets))) | |
1715 | cpp_fatal (pfile, "you must additionally specify either -M or -MM"); | |
96302433 NB |
1716 | } |
1717 | ||
7ca3d2b1 NB |
1718 | /* Set up dependency-file output. */ |
1719 | static void | |
1720 | init_dependency_output (pfile) | |
1721 | cpp_reader *pfile; | |
1722 | { | |
1723 | char *spec, *s, *output_file; | |
1724 | ||
1725 | /* Either of two environment variables can specify output of deps. | |
1726 | Its value is either "OUTPUT_FILE" or "OUTPUT_FILE DEPS_TARGET", | |
1727 | where OUTPUT_FILE is the file to write deps info to | |
1728 | and DEPS_TARGET is the target to mention in the deps. */ | |
1729 | ||
1730 | if (CPP_OPTION (pfile, print_deps) == 0) | |
1731 | { | |
1732 | spec = getenv ("DEPENDENCIES_OUTPUT"); | |
1733 | if (spec) | |
1734 | CPP_OPTION (pfile, print_deps) = 1; | |
1735 | else | |
1736 | { | |
1737 | spec = getenv ("SUNPRO_DEPENDENCIES"); | |
1738 | if (spec) | |
1739 | CPP_OPTION (pfile, print_deps) = 2; | |
1740 | else | |
1741 | return; | |
1742 | } | |
1743 | ||
1744 | /* Find the space before the DEPS_TARGET, if there is one. */ | |
1745 | s = strchr (spec, ' '); | |
1746 | if (s) | |
1747 | { | |
1748 | /* Let the caller perform MAKE quoting. */ | |
1749 | deps_add_target (pfile->deps, s + 1, 0); | |
1750 | output_file = (char *) xmalloc (s - spec + 1); | |
1751 | memcpy (output_file, spec, s - spec); | |
1752 | output_file[s - spec] = 0; | |
1753 | } | |
1754 | else | |
1755 | output_file = spec; | |
1756 | ||
96302433 NB |
1757 | /* Command line overrides environment variables. */ |
1758 | if (CPP_OPTION (pfile, deps_file) == 0) | |
1759 | CPP_OPTION (pfile, deps_file) = output_file; | |
7ca3d2b1 NB |
1760 | CPP_OPTION (pfile, print_deps_append) = 1; |
1761 | } | |
1762 | ||
e582248c NB |
1763 | /* If dependencies go to standard output, or -MG is used, we should |
1764 | suppress output. The user may be requesting other stuff to | |
1765 | stdout, with -dM, -v etc. We let them shoot themselves in the | |
1766 | foot. */ | |
1767 | if (CPP_OPTION (pfile, deps_file) == 0 | |
1768 | || CPP_OPTION (pfile, print_deps_missing_files)) | |
96302433 | 1769 | CPP_OPTION (pfile, no_output) = 1; |
7ca3d2b1 NB |
1770 | } |
1771 | ||
6de1e2a9 ZW |
1772 | static void |
1773 | print_help () | |
1774 | { | |
c1212d2f | 1775 | fprintf (stderr, _("Usage: %s [switches] input output\n"), progname); |
aaaf7848 DT |
1776 | /* To keep the lines from getting too long for some compilers, limit |
1777 | to about 500 characters (6 lines) per chunk. */ | |
6de1e2a9 ZW |
1778 | fputs (_("\ |
1779 | Switches:\n\ | |
1780 | -include <file> Include the contents of <file> before other files\n\ | |
1781 | -imacros <file> Accept definition of macros in <file>\n\ | |
1782 | -iprefix <path> Specify <path> as a prefix for next two options\n\ | |
1783 | -iwithprefix <dir> Add <dir> to the end of the system include path\n\ | |
1784 | -iwithprefixbefore <dir> Add <dir> to the end of the main include path\n\ | |
1785 | -isystem <dir> Add <dir> to the start of the system include path\n\ | |
aaaf7848 DT |
1786 | "), stdout); |
1787 | fputs (_("\ | |
6de1e2a9 ZW |
1788 | -idirafter <dir> Add <dir> to the end of the system include path\n\ |
1789 | -I <dir> Add <dir> to the end of the main include path\n\ | |
e23c0ba3 | 1790 | -I- Fine-grained include path control; see info docs\n\ |
6de1e2a9 ZW |
1791 | -nostdinc Do not search system include directories\n\ |
1792 | (dirs specified with -isystem will still be used)\n\ | |
1793 | -nostdinc++ Do not search system include directories for C++\n\ | |
1794 | -o <file> Put output into <file>\n\ | |
aaaf7848 DT |
1795 | "), stdout); |
1796 | fputs (_("\ | |
041c3194 | 1797 | -pedantic Issue all warnings demanded by strict ISO C\n\ |
e23c0ba3 | 1798 | -pedantic-errors Issue -pedantic warnings as errors instead\n\ |
041c3194 | 1799 | -trigraphs Support ISO C trigraphs\n\ |
6de1e2a9 ZW |
1800 | -lang-c Assume that the input sources are in C\n\ |
1801 | -lang-c89 Assume that the input sources are in C89\n\ | |
aaaf7848 DT |
1802 | "), stdout); |
1803 | fputs (_("\ | |
f9a0e96c | 1804 | -lang-c++ Assume that the input sources are in C++\n\ |
6de1e2a9 ZW |
1805 | -lang-objc Assume that the input sources are in ObjectiveC\n\ |
1806 | -lang-objc++ Assume that the input sources are in ObjectiveC++\n\ | |
1807 | -lang-asm Assume that the input sources are in assembler\n\ | |
aaaf7848 DT |
1808 | "), stdout); |
1809 | fputs (_("\ | |
6de1e2a9 | 1810 | -std=<std name> Specify the conformance standard; one of:\n\ |
916269ab UD |
1811 | gnu89, gnu99, c89, c99, iso9899:1990,\n\ |
1812 | iso9899:199409, iso9899:1999\n\ | |
6de1e2a9 ZW |
1813 | -+ Allow parsing of C++ style features\n\ |
1814 | -w Inhibit warning messages\n\ | |
1815 | -Wtrigraphs Warn if trigraphs are encountered\n\ | |
1816 | -Wno-trigraphs Do not warn about trigraphs\n\ | |
1817 | -Wcomment{s} Warn if one comment starts inside another\n\ | |
aaaf7848 DT |
1818 | "), stdout); |
1819 | fputs (_("\ | |
6de1e2a9 | 1820 | -Wno-comment{s} Do not warn about comments\n\ |
f9a0e96c ZW |
1821 | -Wtraditional Warn about features not present in traditional C\n\ |
1822 | -Wno-traditional Do not warn about traditional C\n\ | |
6de1e2a9 ZW |
1823 | -Wundef Warn if an undefined macro is used by #if\n\ |
1824 | -Wno-undef Do not warn about testing undefined macros\n\ | |
1825 | -Wimport Warn about the use of the #import directive\n\ | |
aaaf7848 DT |
1826 | "), stdout); |
1827 | fputs (_("\ | |
6de1e2a9 ZW |
1828 | -Wno-import Do not warn about the use of #import\n\ |
1829 | -Werror Treat all warnings as errors\n\ | |
1830 | -Wno-error Do not treat warnings as errors\n\ | |
317639a8 BC |
1831 | -Wsystem-headers Do not suppress warnings from system headers\n\ |
1832 | -Wno-system-headers Suppress warnings from system headers\n\ | |
6de1e2a9 | 1833 | -Wall Enable all preprocessor warnings\n\ |
aaaf7848 DT |
1834 | "), stdout); |
1835 | fputs (_("\ | |
317639a8 BC |
1836 | -M Generate make dependencies\n\ |
1837 | -MM As -M, but ignore system header files\n\ | |
96302433 | 1838 | -MF <file> Write dependency output to the given file\n\ |
6de1e2a9 | 1839 | -MG Treat missing header file as generated files\n\ |
96302433 NB |
1840 | "), stdout); |
1841 | fputs (_("\ | |
1842 | -MP Generate phony targets for all headers\n\ | |
1843 | -MQ <target> Add a MAKE-quoted target\n\ | |
1844 | -MT <target> Add an unquoted target\n\ | |
aaaf7848 DT |
1845 | "), stdout); |
1846 | fputs (_("\ | |
317639a8 BC |
1847 | -D<macro> Define a <macro> with string '1' as its value\n\ |
1848 | -D<macro>=<val> Define a <macro> with <val> as its value\n\ | |
6de1e2a9 | 1849 | -A<question> (<answer>) Assert the <answer> to <question>\n\ |
e1e97c4f | 1850 | -A-<question> (<answer>) Disable the <answer> to <question>\n\ |
6de1e2a9 | 1851 | -U<macro> Undefine <macro> \n\ |
6de1e2a9 | 1852 | -v Display the version number\n\ |
aaaf7848 DT |
1853 | "), stdout); |
1854 | fputs (_("\ | |
317639a8 BC |
1855 | -H Print the name of header files as they are used\n\ |
1856 | -C Do not discard comments\n\ | |
6de1e2a9 ZW |
1857 | -dM Display a list of macro definitions active at end\n\ |
1858 | -dD Preserve macro definitions in output\n\ | |
1859 | -dN As -dD except that only the names are preserved\n\ | |
1860 | -dI Include #include directives in the output\n\ | |
317639a8 BC |
1861 | "), stdout); |
1862 | fputs (_("\ | |
6ab3e7dd | 1863 | -ftabstop=<number> Distance between tab stops for column reporting\n\ |
6de1e2a9 ZW |
1864 | -P Do not generate #line directives\n\ |
1865 | -$ Do not allow '$' in identifiers\n\ | |
1866 | -remap Remap file names when including files.\n\ | |
e23c0ba3 | 1867 | --version Display version information\n\ |
6de1e2a9 ZW |
1868 | -h or --help Display this information\n\ |
1869 | "), stdout); | |
1870 | } |