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
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
36 static int _cpp_save_pushed_macros (cpp_reader *, FILE *); |
|
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
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
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
383 /* Write saved macros. */ |
|
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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384 if (! _cpp_save_pushed_macros (r, f)) |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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385 { |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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386 cpp_errno (r, CPP_DL_ERROR, "while writing precompiled header"); |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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387 return -1; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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388 } |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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389 |
| 0 | 390 return 0; |
| 391 } | |
| 392 | |
|
47
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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393 static int |
|
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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394 _cpp_restore_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
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395 { |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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396 size_t count_saved = 0; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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397 size_t i; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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398 struct def_pragma_macro *p; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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399 size_t nlen; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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400 cpp_hashnode *h = NULL; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
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401 cpp_macro *m; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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402 uchar *defn; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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403 size_t defnlen; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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404 |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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405 if (fread (&count_saved, sizeof (count_saved), 1, f) != 1) |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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406 return 0; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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407 if (! count_saved) |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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408 return 1; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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409 for (i = 0; i < count_saved; i++) |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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410 { |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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411 if (fread (&nlen, sizeof (nlen), 1, f) != 1) |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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412 return 0; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
413 p = XNEW (struct def_pragma_macro); |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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414 p->name = XNEWVAR (char, nlen + 1); |
|
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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415 p->name[nlen] = 0; |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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416 if (fread (p->name, nlen, 1, f) != 1) |
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3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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417 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
|
418 /* 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
|
419 m = 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
|
420 if (fread (&defnlen, sizeof (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
|
421 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
|
422 defn = XNEWVAR (uchar, defnlen + 2); |
|
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
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:
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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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update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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diff
changeset
|
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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update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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diff
changeset
|
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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update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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diff
changeset
|
638 cpp_warning_syshdr (r, CPP_W_INVALID_PCH, |
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update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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diff
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|
639 "%s: not used because `%.*s' not defined", |
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diff
changeset
|
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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update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
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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update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
691 cpp_warning_syshdr (r, CPP_W_INVALID_PCH, |
|
b7f97abdc517
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parents:
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diff
changeset
|
692 "%s: not used because `%s' is defined", |
|
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update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
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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parents:
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diff
changeset
|
711 cpp_warning_syshdr (r, CPP_W_INVALID_PCH, |
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parents:
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diff
changeset
|
712 "%s: not used because `__COUNTER__' is invalid", |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
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 | |
|
47
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
888 /* Read 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
|
889 if (! _cpp_restore_pushed_macros (r, f)) |
|
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
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 } |