Mercurial > hg > CbC > CbC_gcc
annotate libcpp/pch.c @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
---|---|
date | Mon, 24 May 2010 12:47:05 +0900 |
parents | 3bfb6c00c1e0 |
children | f6334be47118 |
rev | line source |
---|---|
0 | 1 /* Part of CPP library. (Precompiled header reading/writing.) |
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009 | |
3 Free Software Foundation, Inc. | |
4 | |
5 This program is free software; you can redistribute it and/or modify it | |
6 under the terms of the GNU General Public License as published by the | |
7 Free Software Foundation; either version 3, or (at your option) any | |
8 later version. | |
9 | |
10 This program is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 GNU General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU General Public License | |
16 along with this program; see the file COPYING3. If not see | |
17 <http://www.gnu.org/licenses/>. */ | |
18 | |
19 #include "config.h" | |
20 #include "system.h" | |
21 #include "cpplib.h" | |
22 #include "internal.h" | |
23 #include "hashtab.h" | |
24 #include "mkdeps.h" | |
25 | |
26 static int write_macdef (cpp_reader *, cpp_hashnode *, void *); | |
27 static int save_idents (cpp_reader *, cpp_hashnode *, void *); | |
28 static hashval_t hashmem (const void *, size_t); | |
29 static hashval_t cpp_string_hash (const void *); | |
30 static int cpp_string_eq (const void *, const void *); | |
31 static int count_defs (cpp_reader *, cpp_hashnode *, void *); | |
32 static int comp_hashnodes (const void *, const void *); | |
33 static int collect_ht_nodes (cpp_reader *, cpp_hashnode *, void *); | |
34 static int write_defs (cpp_reader *, cpp_hashnode *, void *); | |
35 static int save_macros (cpp_reader *, cpp_hashnode *, void *); | |
47
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update it from 4.4.2 to 4.4.3.
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36 static int _cpp_save_pushed_macros (cpp_reader *, FILE *); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
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37 static int _cpp_restore_pushed_macros (cpp_reader *, FILE *); |
0 | 38 |
39 /* This structure represents a macro definition on disk. */ | |
40 struct macrodef_struct | |
41 { | |
42 unsigned int definition_length; | |
43 unsigned short name_length; | |
44 unsigned short flags; | |
45 }; | |
46 | |
47 /* This is how we write out a macro definition. | |
48 Suitable for being called by cpp_forall_identifiers. */ | |
49 | |
50 static int | |
51 write_macdef (cpp_reader *pfile, cpp_hashnode *hn, void *file_p) | |
52 { | |
53 FILE *f = (FILE *) file_p; | |
54 switch (hn->type) | |
55 { | |
56 case NT_VOID: | |
57 if (! (hn->flags & NODE_POISONED)) | |
58 return 1; | |
59 | |
60 case NT_MACRO: | |
61 if ((hn->flags & NODE_BUILTIN)) | |
62 return 1; | |
63 | |
64 { | |
65 struct macrodef_struct s; | |
66 const unsigned char *defn; | |
67 | |
68 s.name_length = NODE_LEN (hn); | |
69 s.flags = hn->flags & NODE_POISONED; | |
70 | |
71 if (hn->type == NT_MACRO) | |
72 { | |
73 defn = cpp_macro_definition (pfile, hn); | |
74 s.definition_length = ustrlen (defn); | |
75 } | |
76 else | |
77 { | |
78 defn = NODE_NAME (hn); | |
79 s.definition_length = s.name_length; | |
80 } | |
81 | |
82 if (fwrite (&s, sizeof (s), 1, f) != 1 | |
83 || fwrite (defn, 1, s.definition_length, f) != s.definition_length) | |
84 { | |
85 cpp_errno (pfile, CPP_DL_ERROR, | |
86 "while writing precompiled header"); | |
87 return 0; | |
88 } | |
89 } | |
90 return 1; | |
91 | |
92 case NT_ASSERTION: | |
93 /* Not currently implemented. */ | |
94 return 1; | |
95 | |
96 default: | |
97 abort (); | |
98 } | |
99 } | |
100 | |
101 /* This structure records the names of the defined macros. | |
102 It's also used as a callback structure for size_initial_idents | |
103 and save_idents. */ | |
104 | |
105 struct cpp_savedstate | |
106 { | |
107 /* A hash table of the defined identifiers. */ | |
108 htab_t definedhash; | |
109 /* The size of the definitions of those identifiers (the size of | |
110 'definedstrs'). */ | |
111 size_t hashsize; | |
112 /* Number of definitions */ | |
113 size_t n_defs; | |
114 /* Array of definitions. In cpp_write_pch_deps it is used for sorting. */ | |
115 cpp_hashnode **defs; | |
116 /* Space for the next definition. Definitions are null-terminated | |
117 strings. */ | |
118 unsigned char *definedstrs; | |
119 }; | |
120 | |
121 /* Save this identifier into the state: put it in the hash table, | |
122 put the definition in 'definedstrs'. */ | |
123 | |
124 static int | |
125 save_idents (cpp_reader *pfile ATTRIBUTE_UNUSED, cpp_hashnode *hn, void *ss_p) | |
126 { | |
127 struct cpp_savedstate *const ss = (struct cpp_savedstate *)ss_p; | |
128 | |
129 if (hn->type != NT_VOID) | |
130 { | |
131 struct cpp_string news; | |
132 void **slot; | |
133 | |
134 news.len = NODE_LEN (hn); | |
135 news.text= NODE_NAME (hn); | |
136 slot = htab_find_slot (ss->definedhash, &news, INSERT); | |
137 if (*slot == NULL) | |
138 { | |
139 struct cpp_string *sp; | |
140 unsigned char *text; | |
141 | |
142 sp = XNEW (struct cpp_string); | |
143 *slot = sp; | |
144 | |
145 sp->len = NODE_LEN (hn); | |
146 sp->text = text = XNEWVEC (unsigned char, NODE_LEN (hn)); | |
147 memcpy (text, NODE_NAME (hn), NODE_LEN (hn)); | |
148 } | |
149 } | |
150 | |
151 return 1; | |
152 } | |
153 | |
154 /* Hash some memory in a generic way. */ | |
155 | |
156 static hashval_t | |
157 hashmem (const void *p_p, size_t sz) | |
158 { | |
159 const unsigned char *p = (const unsigned char *)p_p; | |
160 size_t i; | |
161 hashval_t h; | |
162 | |
163 h = 0; | |
164 for (i = 0; i < sz; i++) | |
165 h = h * 67 - (*p++ - 113); | |
166 return h; | |
167 } | |
168 | |
169 /* Hash a cpp string for the hashtable machinery. */ | |
170 | |
171 static hashval_t | |
172 cpp_string_hash (const void *a_p) | |
173 { | |
174 const struct cpp_string *a = (const struct cpp_string *) a_p; | |
175 return hashmem (a->text, a->len); | |
176 } | |
177 | |
178 /* Compare two cpp strings for the hashtable machinery. */ | |
179 | |
180 static int | |
181 cpp_string_eq (const void *a_p, const void *b_p) | |
182 { | |
183 const struct cpp_string *a = (const struct cpp_string *) a_p; | |
184 const struct cpp_string *b = (const struct cpp_string *) b_p; | |
185 return (a->len == b->len | |
186 && memcmp (a->text, b->text, a->len) == 0); | |
187 } | |
188 | |
189 /* Save the current definitions of the cpp_reader for dependency | |
190 checking purposes. When writing a precompiled header, this should | |
191 be called at the same point in the compilation as cpp_valid_state | |
192 would be called when reading the precompiled header back in. */ | |
193 | |
194 int | |
195 cpp_save_state (cpp_reader *r, FILE *f) | |
196 { | |
197 /* Save the list of non-void identifiers for the dependency checking. */ | |
198 r->savedstate = XNEW (struct cpp_savedstate); | |
199 r->savedstate->definedhash = htab_create (100, cpp_string_hash, | |
200 cpp_string_eq, NULL); | |
201 cpp_forall_identifiers (r, save_idents, r->savedstate); | |
202 | |
203 /* Write out the list of defined identifiers. */ | |
204 cpp_forall_identifiers (r, write_macdef, f); | |
205 | |
206 return 0; | |
207 } | |
208 | |
209 /* Calculate the 'hashsize' field of the saved state. */ | |
210 | |
211 static int | |
212 count_defs (cpp_reader *pfile ATTRIBUTE_UNUSED, cpp_hashnode *hn, void *ss_p) | |
213 { | |
214 struct cpp_savedstate *const ss = (struct cpp_savedstate *)ss_p; | |
215 | |
216 switch (hn->type) | |
217 { | |
218 case NT_MACRO: | |
219 if (hn->flags & NODE_BUILTIN) | |
220 return 1; | |
221 | |
222 /* else fall through. */ | |
223 | |
224 case NT_VOID: | |
225 { | |
226 struct cpp_string news; | |
227 void **slot; | |
228 | |
229 news.len = NODE_LEN (hn); | |
230 news.text = NODE_NAME (hn); | |
231 slot = (void **) htab_find (ss->definedhash, &news); | |
232 if (slot == NULL) | |
233 { | |
234 ss->hashsize += NODE_LEN (hn) + 1; | |
235 ss->n_defs += 1; | |
236 } | |
237 } | |
238 return 1; | |
239 | |
240 case NT_ASSERTION: | |
241 /* Not currently implemented. */ | |
242 return 1; | |
243 | |
244 default: | |
245 abort (); | |
246 } | |
247 } | |
248 | |
249 /* Collect the identifiers into the state's string table. */ | |
250 static int | |
251 write_defs (cpp_reader *pfile ATTRIBUTE_UNUSED, cpp_hashnode *hn, void *ss_p) | |
252 { | |
253 struct cpp_savedstate *const ss = (struct cpp_savedstate *)ss_p; | |
254 | |
255 switch (hn->type) | |
256 { | |
257 case NT_MACRO: | |
258 if (hn->flags & NODE_BUILTIN) | |
259 return 1; | |
260 | |
261 /* else fall through. */ | |
262 | |
263 case NT_VOID: | |
264 { | |
265 struct cpp_string news; | |
266 void **slot; | |
267 | |
268 news.len = NODE_LEN (hn); | |
269 news.text = NODE_NAME (hn); | |
270 slot = (void **) htab_find (ss->definedhash, &news); | |
271 if (slot == NULL) | |
272 { | |
273 ss->defs[ss->n_defs] = hn; | |
274 ss->n_defs += 1; | |
275 } | |
276 } | |
277 return 1; | |
278 | |
279 case NT_ASSERTION: | |
280 /* Not currently implemented. */ | |
281 return 1; | |
282 | |
283 default: | |
284 abort (); | |
285 } | |
286 } | |
287 | |
288 /* Comparison function for qsort. The arguments point to pointers of | |
289 type ht_hashnode *. */ | |
290 static int | |
291 comp_hashnodes (const void *px, const void *py) | |
292 { | |
293 cpp_hashnode *x = *(cpp_hashnode **) px; | |
294 cpp_hashnode *y = *(cpp_hashnode **) py; | |
295 return ustrcmp (NODE_NAME (x), NODE_NAME (y)); | |
296 } | |
297 | |
298 /* Write out the remainder of the dependency information. This should be | |
299 called after the PCH is ready to be saved. */ | |
300 | |
301 int | |
302 cpp_write_pch_deps (cpp_reader *r, FILE *f) | |
303 { | |
304 struct macrodef_struct z; | |
305 struct cpp_savedstate *const ss = r->savedstate; | |
306 unsigned char *definedstrs; | |
307 size_t i; | |
308 | |
309 /* Collect the list of identifiers which have been seen and | |
310 weren't defined to anything previously. */ | |
311 ss->hashsize = 0; | |
312 ss->n_defs = 0; | |
313 cpp_forall_identifiers (r, count_defs, ss); | |
314 | |
315 ss->defs = XNEWVEC (cpp_hashnode *, ss->n_defs); | |
316 ss->n_defs = 0; | |
317 cpp_forall_identifiers (r, write_defs, ss); | |
318 | |
319 /* Sort the list, copy it into a buffer, and write it out. */ | |
320 qsort (ss->defs, ss->n_defs, sizeof (cpp_hashnode *), &comp_hashnodes); | |
321 definedstrs = ss->definedstrs = XNEWVEC (unsigned char, ss->hashsize); | |
322 for (i = 0; i < ss->n_defs; ++i) | |
323 { | |
324 size_t len = NODE_LEN (ss->defs[i]); | |
325 memcpy (definedstrs, NODE_NAME (ss->defs[i]), len + 1); | |
326 definedstrs += len + 1; | |
327 } | |
328 | |
329 memset (&z, 0, sizeof (z)); | |
330 z.definition_length = ss->hashsize; | |
331 if (fwrite (&z, sizeof (z), 1, f) != 1 | |
332 || fwrite (ss->definedstrs, ss->hashsize, 1, f) != 1) | |
333 { | |
334 cpp_errno (r, CPP_DL_ERROR, "while writing precompiled header"); | |
335 return -1; | |
336 } | |
337 free (ss->definedstrs); | |
338 | |
339 /* Free the saved state. */ | |
340 free (ss); | |
341 r->savedstate = NULL; | |
342 | |
343 /* Save the next value of __COUNTER__. */ | |
344 if (fwrite (&r->counter, sizeof (r->counter), 1, f) != 1) | |
345 { | |
346 cpp_errno (r, CPP_DL_ERROR, "while writing precompiled header"); | |
347 return -1; | |
348 } | |
349 | |
350 return 0; | |
351 } | |
352 | |
353 /* Write out the definitions of the preprocessor, in a form suitable for | |
354 cpp_read_state. */ | |
355 | |
356 int | |
357 cpp_write_pch_state (cpp_reader *r, FILE *f) | |
358 { | |
359 if (!r->deps) | |
360 r->deps = deps_init (); | |
361 | |
362 if (deps_save (r->deps, f) != 0) | |
363 { | |
364 cpp_errno (r, CPP_DL_ERROR, "while writing precompiled header"); | |
365 return -1; | |
366 } | |
367 | |
368 if (! _cpp_save_file_entries (r, f)) | |
369 { | |
370 cpp_errno (r, CPP_DL_ERROR, "while writing precompiled header"); | |
371 return -1; | |
372 } | |
373 | |
374 /* Save the next __COUNTER__ value. When we include a precompiled header, | |
375 we need to start at the offset we would have if the header had been | |
376 included normally. */ | |
377 if (fwrite (&r->counter, sizeof (r->counter), 1, f) != 1) | |
378 { | |
379 cpp_errno (r, CPP_DL_ERROR, "while writing precompiled header"); | |
380 return -1; | |
381 } | |
382 | |
47
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383 /* Write saved macros. */ |
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384 if (! _cpp_save_pushed_macros (r, f)) |
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385 { |
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386 cpp_errno (r, CPP_DL_ERROR, "while writing precompiled header"); |
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387 return -1; |
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388 } |
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389 |
0 | 390 return 0; |
391 } | |
392 | |
47
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393 static int |
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394 _cpp_restore_pushed_macros (cpp_reader *r, FILE *f) |
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395 { |
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396 size_t count_saved = 0; |
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397 size_t i; |
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398 struct def_pragma_macro *p; |
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399 size_t nlen; |
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400 cpp_hashnode *h = NULL; |
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401 cpp_macro *m; |
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402 uchar *defn; |
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403 size_t defnlen; |
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404 |
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405 if (fread (&count_saved, sizeof (count_saved), 1, f) != 1) |
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406 return 0; |
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407 if (! count_saved) |
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408 return 1; |
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409 for (i = 0; i < count_saved; i++) |
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410 { |
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411 if (fread (&nlen, sizeof (nlen), 1, f) != 1) |
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412 return 0; |
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413 p = XNEW (struct def_pragma_macro); |
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414 p->name = XNEWVAR (char, nlen + 1); |
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415 p->name[nlen] = 0; |
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416 if (fread (p->name, nlen, 1, f) != 1) |
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417 return 0; |
3bfb6c00c1e0
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418 /* Save old state. */ |
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419 m = cpp_push_definition (r, p->name); |
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420 if (fread (&defnlen, sizeof (defnlen), 1, f) != 1) |
3bfb6c00c1e0
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421 return 0; |
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422 defn = XNEWVAR (uchar, defnlen + 2); |
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|
423 defn[defnlen] = '\n'; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
424 defn[defnlen + 1] = 0; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
425 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
426 if (fread (defn, defnlen, 1, f) != 1) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
427 return 0; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
428 cpp_pop_definition (r, p->name, NULL); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
429 { |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
430 size_t namelen; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
431 uchar *dn; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
432 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
433 namelen = ustrcspn (defn, "( \n"); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
434 h = cpp_lookup (r, defn, namelen); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
435 dn = defn + namelen; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
436 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
437 h->type = NT_VOID; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
438 h->flags &= ~(NODE_POISONED|NODE_BUILTIN|NODE_DISABLED|NODE_USED); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
439 if (cpp_push_buffer (r, dn, ustrchr (dn, '\n') - dn, true) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
440 != NULL) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
441 { |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
442 _cpp_clean_line (r); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
443 if (!_cpp_create_definition (r, h)) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
444 abort (); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
445 _cpp_pop_buffer (r); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
446 } |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
447 else |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
448 abort (); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
449 } |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
450 p->value = cpp_push_definition (r, p->name); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
451 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
452 free (defn); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
453 p->next = r->pushed_macros; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
454 r->pushed_macros = p; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
455 /* Restore current state. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
456 cpp_pop_definition (r, p->name, m); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
457 } |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
458 return 1; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
459 } |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
460 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
461 static int |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
462 _cpp_save_pushed_macros (cpp_reader *r, FILE *f) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
463 { |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
464 size_t count_saved = 0; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
465 size_t i; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
466 struct def_pragma_macro *p,**pp; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
467 cpp_hashnode *node; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
468 cpp_macro *m; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
469 size_t defnlen; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
470 const uchar *defn; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
471 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
472 /* Get count. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
473 p = r->pushed_macros; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
474 while (p != NULL) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
475 { |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
476 count_saved++; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
477 p = p->next; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
478 } |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
479 if (fwrite (&count_saved, sizeof (count_saved), 1, f) != 1) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
480 return 0; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
481 if (!count_saved) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
482 return 1; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
483 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
484 pp = (struct def_pragma_macro **) alloca (sizeof (struct def_pragma_macro *) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
485 * count_saved); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
486 /* Store them in reverse order. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
487 p = r->pushed_macros; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
488 i = count_saved; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
489 while (p != NULL) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
490 { |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
491 --i; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
492 pp[i] = p; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
493 p = p->next; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
494 } |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
495 for (i = 0; i < count_saved; i++) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
496 { |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
497 /* Save old state. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
498 m = cpp_push_definition (r, pp[i]->name); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
499 /* Set temporary macro name to saved state. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
500 cpp_pop_definition (r, pp[i]->name, pp[i]->value); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
501 node = _cpp_lex_identifier (r, pp[i]->name); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
502 defnlen = strlen (pp[i]->name); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
503 if (fwrite (&defnlen, sizeof (size_t), 1, f) != 1 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
504 || fwrite (pp[i]->name, defnlen, 1, f) != 1) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
505 return 0; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
506 defn = cpp_macro_definition (r, node); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
507 defnlen = ustrlen (defn); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
508 if (fwrite (&defnlen, sizeof (size_t), 1, f) != 1 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
509 || fwrite (defn, defnlen, 1, f) != 1) |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
510 return 0; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
511 /* Restore current state. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
512 cpp_pop_definition (r, pp[i]->name, m); |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
513 } |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
514 return 1; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
515 } |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
516 |
0 | 517 |
518 /* Data structure to transform hash table nodes into a sorted list */ | |
519 | |
520 struct ht_node_list | |
521 { | |
522 /* Array of nodes */ | |
523 cpp_hashnode **defs; | |
524 /* Number of nodes in the array */ | |
525 size_t n_defs; | |
526 /* Size of the allocated array */ | |
527 size_t asize; | |
528 }; | |
529 | |
530 /* Callback for collecting identifiers from hash table */ | |
531 | |
532 static int | |
533 collect_ht_nodes (cpp_reader *pfile ATTRIBUTE_UNUSED, cpp_hashnode *hn, | |
534 void *nl_p) | |
535 { | |
536 struct ht_node_list *const nl = (struct ht_node_list *)nl_p; | |
537 | |
538 if (hn->type != NT_VOID || hn->flags & NODE_POISONED) | |
539 { | |
540 if (nl->n_defs == nl->asize) | |
541 { | |
542 nl->asize *= 2; | |
543 nl->defs = XRESIZEVEC (cpp_hashnode *, nl->defs, nl->asize); | |
544 } | |
545 | |
546 nl->defs[nl->n_defs] = hn; | |
547 ++nl->n_defs; | |
548 } | |
549 return 1; | |
550 } | |
551 | |
552 | |
553 /* Return nonzero if FD is a precompiled header which is consistent | |
554 with the preprocessor's current definitions. It will be consistent | |
555 when: | |
556 | |
557 - anything that was defined just before the PCH was generated | |
558 is defined the same way now; and | |
559 - anything that was not defined then, but is defined now, was not | |
560 used by the PCH. | |
561 | |
562 NAME is used to print warnings if `warn_invalid_pch' is set in the | |
563 reader's flags. | |
564 */ | |
565 | |
566 int | |
567 cpp_valid_state (cpp_reader *r, const char *name, int fd) | |
568 { | |
569 struct macrodef_struct m; | |
570 size_t namebufsz = 256; | |
571 unsigned char *namebuf = XNEWVEC (unsigned char, namebufsz); | |
572 unsigned char *undeftab = NULL; | |
573 struct ht_node_list nl = { 0, 0, 0 }; | |
574 unsigned char *first, *last; | |
575 unsigned int i; | |
576 unsigned int counter; | |
577 | |
578 /* Read in the list of identifiers that must be defined | |
579 Check that they are defined in the same way. */ | |
580 for (;;) | |
581 { | |
582 cpp_hashnode *h; | |
583 const unsigned char *newdefn; | |
584 | |
585 if (read (fd, &m, sizeof (m)) != sizeof (m)) | |
586 goto error; | |
587 | |
588 if (m.name_length == 0) | |
589 break; | |
590 | |
591 /* If this file is already preprocessed, there won't be any | |
592 macros defined, and that's OK. */ | |
593 if (CPP_OPTION (r, preprocessed)) | |
594 { | |
595 if (lseek (fd, m.definition_length, SEEK_CUR) == -1) | |
596 goto error; | |
597 continue; | |
598 } | |
599 | |
600 if (m.definition_length > namebufsz) | |
601 { | |
602 free (namebuf); | |
603 namebufsz = m.definition_length + 256; | |
604 namebuf = XNEWVEC (unsigned char, namebufsz); | |
605 } | |
606 | |
607 if ((size_t)read (fd, namebuf, m.definition_length) | |
608 != m.definition_length) | |
609 goto error; | |
610 | |
611 h = cpp_lookup (r, namebuf, m.name_length); | |
612 if (m.flags & NODE_POISONED | |
613 || h->flags & NODE_POISONED) | |
614 { | |
615 if (CPP_OPTION (r, warn_invalid_pch)) | |
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616 cpp_warning_syshdr (r, CPP_W_INVALID_PCH, |
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617 "%s: not used because `%.*s' is poisoned", |
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618 name, m.name_length, namebuf); |
0 | 619 goto fail; |
620 } | |
621 | |
622 if (h->type != NT_MACRO) | |
623 { | |
624 /* It's ok if __GCC_HAVE_DWARF2_CFI_ASM becomes undefined, | |
625 as in, when the PCH file is created with -g and we're | |
626 attempting to use it without -g. Restoring the PCH file | |
627 is supposed to bring in this definition *and* enable the | |
628 generation of call frame information, so that precompiled | |
629 definitions that take this macro into accout, to decide | |
630 what asm to emit, won't issue .cfi directives when the | |
631 compiler doesn't. */ | |
632 if (!(h->flags & NODE_USED) | |
633 && m.name_length == sizeof ("__GCC_HAVE_DWARF2_CFI_ASM") - 1 | |
634 && !memcmp (namebuf, "__GCC_HAVE_DWARF2_CFI_ASM", m.name_length)) | |
635 continue; | |
636 | |
637 if (CPP_OPTION (r, warn_invalid_pch)) | |
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638 cpp_warning_syshdr (r, CPP_W_INVALID_PCH, |
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639 "%s: not used because `%.*s' not defined", |
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640 name, m.name_length, namebuf); |
0 | 641 goto fail; |
642 } | |
643 | |
644 newdefn = cpp_macro_definition (r, h); | |
645 | |
646 if (m.definition_length != ustrlen (newdefn) | |
647 || memcmp (namebuf, newdefn, m.definition_length) != 0) | |
648 { | |
649 if (CPP_OPTION (r, warn_invalid_pch)) | |
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650 cpp_warning_syshdr (r, CPP_W_INVALID_PCH, |
0 | 651 "%s: not used because `%.*s' defined as `%s' not `%.*s'", |
652 name, m.name_length, namebuf, newdefn + m.name_length, | |
653 m.definition_length - m.name_length, | |
654 namebuf + m.name_length); | |
655 goto fail; | |
656 } | |
657 } | |
658 free (namebuf); | |
659 namebuf = NULL; | |
660 | |
661 /* Read in the list of identifiers that must not be defined. | |
662 Check that they really aren't. */ | |
663 undeftab = XNEWVEC (unsigned char, m.definition_length); | |
664 if ((size_t) read (fd, undeftab, m.definition_length) != m.definition_length) | |
665 goto error; | |
666 | |
667 /* Collect identifiers from the current hash table. */ | |
668 nl.n_defs = 0; | |
669 nl.asize = 10; | |
670 nl.defs = XNEWVEC (cpp_hashnode *, nl.asize); | |
671 cpp_forall_identifiers (r, &collect_ht_nodes, &nl); | |
672 qsort (nl.defs, nl.n_defs, sizeof (cpp_hashnode *), &comp_hashnodes); | |
673 | |
674 /* Loop through nl.defs and undeftab, both of which are sorted lists. | |
675 There should be no matches. */ | |
676 first = undeftab; | |
677 last = undeftab + m.definition_length; | |
678 i = 0; | |
679 | |
680 while (first < last && i < nl.n_defs) | |
681 { | |
682 int cmp = ustrcmp (first, NODE_NAME (nl.defs[i])); | |
683 | |
684 if (cmp < 0) | |
685 first += ustrlen (first) + 1; | |
686 else if (cmp > 0) | |
687 ++i; | |
688 else | |
689 { | |
690 if (CPP_OPTION (r, warn_invalid_pch)) | |
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691 cpp_warning_syshdr (r, CPP_W_INVALID_PCH, |
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692 "%s: not used because `%s' is defined", |
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693 name, first); |
0 | 694 goto fail; |
695 } | |
696 } | |
697 | |
698 free(nl.defs); | |
699 nl.defs = NULL; | |
700 free (undeftab); | |
701 undeftab = NULL; | |
702 | |
703 /* Read in the next value of __COUNTER__. | |
704 Check that (a) __COUNTER__ was not used in the pch or (b) __COUNTER__ | |
705 has not been used in this translation unit. */ | |
706 if (read (fd, &counter, sizeof (counter)) != sizeof (counter)) | |
707 goto error; | |
708 if (counter && r->counter) | |
709 { | |
710 if (CPP_OPTION (r, warn_invalid_pch)) | |
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711 cpp_warning_syshdr (r, CPP_W_INVALID_PCH, |
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712 "%s: not used because `__COUNTER__' is invalid", |
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713 name); |
0 | 714 goto fail; |
715 } | |
716 | |
717 /* We win! */ | |
718 return 0; | |
719 | |
720 error: | |
721 cpp_errno (r, CPP_DL_ERROR, "while reading precompiled header"); | |
722 return -1; | |
723 | |
724 fail: | |
725 if (namebuf != NULL) | |
726 free (namebuf); | |
727 if (undeftab != NULL) | |
728 free (undeftab); | |
729 if (nl.defs != NULL) | |
730 free (nl.defs); | |
731 return 1; | |
732 } | |
733 | |
734 /* Save all the existing macros. */ | |
735 | |
736 struct save_macro_data | |
737 { | |
738 uchar **defns; | |
739 size_t count; | |
740 size_t array_size; | |
741 char **saved_pragmas; | |
742 }; | |
743 | |
744 /* Save the definition of a single macro, so that it will persist | |
745 across a PCH restore. Because macro data is in GCed memory, which | |
746 will be blown away by PCH, it must be temporarily copied to | |
747 malloced memory. (The macros will refer to identifier nodes which | |
748 are also GCed and so on, so the copying is done by turning them | |
749 into self-contained strings.) The assumption is that most macro | |
750 definitions will come from the PCH file, not from the compilation | |
751 before the PCH file is loaded, so it doesn't matter that this is | |
752 a little expensive. | |
753 | |
754 It would reduce the cost even further if macros defined in the PCH | |
755 file were not saved in this way, but this is not done (yet), except | |
756 for builtins, and for #assert by default. */ | |
757 | |
758 static int | |
759 save_macros (cpp_reader *r, cpp_hashnode *h, void *data_p) | |
760 { | |
761 struct save_macro_data *data = (struct save_macro_data *)data_p; | |
762 if (h->type != NT_VOID | |
763 && (h->flags & NODE_BUILTIN) == 0) | |
764 { | |
765 if (data->count == data->array_size) | |
766 { | |
767 data->array_size *= 2; | |
768 data->defns = XRESIZEVEC (uchar *, data->defns, (data->array_size)); | |
769 } | |
770 | |
771 switch (h->type) | |
772 { | |
773 case NT_ASSERTION: | |
774 /* Not currently implemented. */ | |
775 return 1; | |
776 | |
777 case NT_MACRO: | |
778 { | |
779 const uchar * defn = cpp_macro_definition (r, h); | |
780 size_t defnlen = ustrlen (defn); | |
781 | |
782 data->defns[data->count] = (uchar *) xmemdup (defn, defnlen, | |
783 defnlen + 2); | |
784 data->defns[data->count][defnlen] = '\n'; | |
785 } | |
786 break; | |
787 | |
788 default: | |
789 abort (); | |
790 } | |
791 data->count++; | |
792 } | |
793 return 1; | |
794 } | |
795 | |
796 /* Prepare to restore the state, by saving the currently-defined | |
797 macros in 'data'. */ | |
798 | |
799 void | |
800 cpp_prepare_state (cpp_reader *r, struct save_macro_data **data) | |
801 { | |
802 struct save_macro_data *d = XNEW (struct save_macro_data); | |
803 | |
804 d->array_size = 512; | |
805 d->defns = XNEWVEC (uchar *, d->array_size); | |
806 d->count = 0; | |
807 cpp_forall_identifiers (r, save_macros, d); | |
808 d->saved_pragmas = _cpp_save_pragma_names (r); | |
809 *data = d; | |
810 } | |
811 | |
812 /* Given a precompiled header that was previously determined to be valid, | |
813 apply all its definitions (and undefinitions) to the current state. | |
814 DEPNAME is passed to deps_restore. */ | |
815 | |
816 int | |
817 cpp_read_state (cpp_reader *r, const char *name, FILE *f, | |
818 struct save_macro_data *data) | |
819 { | |
820 size_t i; | |
821 struct lexer_state old_state; | |
822 unsigned int counter; | |
823 | |
824 /* Restore spec_nodes, which will be full of references to the old | |
825 hashtable entries and so will now be invalid. */ | |
826 { | |
827 struct spec_nodes *s = &r->spec_nodes; | |
828 s->n_defined = cpp_lookup (r, DSC("defined")); | |
829 s->n_true = cpp_lookup (r, DSC("true")); | |
830 s->n_false = cpp_lookup (r, DSC("false")); | |
831 s->n__VA_ARGS__ = cpp_lookup (r, DSC("__VA_ARGS__")); | |
832 } | |
833 | |
834 old_state = r->state; | |
835 r->state.in_directive = 1; | |
836 r->state.prevent_expansion = 1; | |
837 r->state.angled_headers = 0; | |
838 | |
839 /* Run through the carefully-saved macros, insert them. */ | |
840 for (i = 0; i < data->count; i++) | |
841 { | |
842 cpp_hashnode *h; | |
843 size_t namelen; | |
844 uchar *defn; | |
845 | |
846 namelen = ustrcspn (data->defns[i], "( \n"); | |
847 h = cpp_lookup (r, data->defns[i], namelen); | |
848 defn = data->defns[i] + namelen; | |
849 | |
850 /* The PCH file is valid, so we know that if there is a definition | |
851 from the PCH file it must be the same as the one we had | |
852 originally, and so do not need to restore it. */ | |
853 if (h->type == NT_VOID) | |
854 { | |
855 if (cpp_push_buffer (r, defn, ustrchr (defn, '\n') - defn, true) | |
856 != NULL) | |
857 { | |
858 _cpp_clean_line (r); | |
859 if (!_cpp_create_definition (r, h)) | |
860 abort (); | |
861 _cpp_pop_buffer (r); | |
862 } | |
863 else | |
864 abort (); | |
865 } | |
866 | |
867 free (data->defns[i]); | |
868 } | |
869 r->state = old_state; | |
870 | |
871 _cpp_restore_pragma_names (r, data->saved_pragmas); | |
872 | |
873 free (data); | |
874 | |
875 if (deps_restore (r->deps, f, CPP_OPTION (r, restore_pch_deps) ? name : NULL) | |
876 != 0) | |
877 goto error; | |
878 | |
879 if (! _cpp_read_file_entries (r, f)) | |
880 goto error; | |
881 | |
882 if (fread (&counter, sizeof (counter), 1, f) != 1) | |
883 goto error; | |
884 | |
885 if (!r->counter) | |
886 r->counter = counter; | |
887 | |
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diff
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888 /* Read pushed macros. */ |
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889 if (! _cpp_restore_pushed_macros (r, f)) |
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890 goto error; |
0 | 891 return 0; |
892 | |
893 error: | |
894 cpp_errno (r, CPP_DL_ERROR, "while reading precompiled header"); | |
895 return -1; | |
896 } |