Commit | Line | Data |
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c906108c | 1 | /* Support routines for building symbol tables in GDB's internal format. |
e2882c85 | 2 | Copyright (C) 1986-2018 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 9 | (at your option) any later version. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b | 16 | You should have received a copy of the GNU General Public License |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
18 | |
19 | /* This module provides subroutines used for creating and adding to | |
20 | the symbol table. These routines are called from various symbol- | |
21 | file-reading routines. | |
22 | ||
23 | Routines to support specific debugging information formats (stabs, | |
0ab9ce85 DE |
24 | DWARF, etc) belong somewhere else. |
25 | ||
26 | The basic way this module is used is as follows: | |
27 | ||
33c7c59d | 28 | scoped_free_pendings free_pending; |
0ab9ce85 DE |
29 | cust = start_symtab (...); |
30 | ... read debug info ... | |
31 | cust = end_symtab (...); | |
0ab9ce85 DE |
32 | |
33 | The compunit symtab pointer ("cust") is returned from both start_symtab | |
34 | and end_symtab to simplify the debug info readers. | |
35 | ||
36 | There are minor variations on this, e.g., dwarf2read.c splits end_symtab | |
37 | into two calls: end_symtab_get_static_block, end_symtab_from_static_block, | |
38 | but all debug info readers follow this basic flow. | |
39 | ||
40 | Reading DWARF Type Units is another variation: | |
41 | ||
33c7c59d | 42 | scoped_free_pendings free_pending; |
0ab9ce85 DE |
43 | cust = start_symtab (...); |
44 | ... read debug info ... | |
45 | cust = end_expandable_symtab (...); | |
0ab9ce85 DE |
46 | |
47 | And then reading subsequent Type Units within the containing "Comp Unit" | |
48 | will use a second flow: | |
49 | ||
33c7c59d | 50 | scoped_free_pendings free_pending; |
0ab9ce85 DE |
51 | cust = restart_symtab (...); |
52 | ... read debug info ... | |
53 | cust = augment_type_symtab (...); | |
0ab9ce85 DE |
54 | |
55 | dbxread.c and xcoffread.c use another variation: | |
56 | ||
33c7c59d | 57 | scoped_free_pendings free_pending; |
0ab9ce85 DE |
58 | cust = start_symtab (...); |
59 | ... read debug info ... | |
60 | cust = end_symtab (...); | |
61 | ... start_symtab + read + end_symtab repeated ... | |
0ab9ce85 | 62 | */ |
c906108c SS |
63 | |
64 | #include "defs.h" | |
65 | #include "bfd.h" | |
04ea0df1 | 66 | #include "gdb_obstack.h" |
c906108c | 67 | #include "symtab.h" |
72367fb4 | 68 | #include "symfile.h" |
c906108c SS |
69 | #include "objfiles.h" |
70 | #include "gdbtypes.h" | |
71 | #include "complaints.h" | |
4a64f543 | 72 | #include "expression.h" /* For "enum exp_opcode" used by... */ |
4a64f543 | 73 | #include "filenames.h" /* For DOSish file names. */ |
99d9066e | 74 | #include "macrotab.h" |
261397f8 | 75 | #include "demangle.h" /* Needed by SYMBOL_INIT_DEMANGLED_NAME. */ |
fe898f56 | 76 | #include "block.h" |
9219021c | 77 | #include "cp-support.h" |
de4f826b | 78 | #include "dictionary.h" |
801e3a5b | 79 | #include "addrmap.h" |
b05628f0 | 80 | #include <algorithm> |
9219021c | 81 | |
c906108c | 82 | /* Ask buildsym.h to define the vars it normally declares `extern'. */ |
c5aa993b JM |
83 | #define EXTERN |
84 | /**/ | |
4a64f543 | 85 | #include "buildsym.h" /* Our own declarations. */ |
c906108c SS |
86 | #undef EXTERN |
87 | ||
0a0edcd5 | 88 | /* For cleanup_undefined_stabs_types and finish_global_stabs (somewhat |
c906108c SS |
89 | questionable--see comment where we call them). */ |
90 | ||
91 | #include "stabsread.h" | |
92 | ||
43f3e411 DE |
93 | /* Buildsym's counterpart to struct compunit_symtab. |
94 | TODO(dje): Move all related global state into here. */ | |
4d663531 | 95 | |
43f3e411 DE |
96 | struct buildsym_compunit |
97 | { | |
b248663f TT |
98 | /* Start recording information about a primary source file (IOW, not an |
99 | included source file). | |
100 | COMP_DIR is the directory in which the compilation unit was compiled | |
101 | (or NULL if not known). */ | |
102 | ||
c0015d44 | 103 | buildsym_compunit (struct objfile *objfile_, const char *name, |
2c99ee5c TT |
104 | const char *comp_dir_, enum language language_, |
105 | CORE_ADDR last_addr) | |
b248663f | 106 | : objfile (objfile_), |
c0015d44 | 107 | m_last_source_file (name == nullptr ? nullptr : xstrdup (name)), |
b248663f | 108 | comp_dir (comp_dir_ == nullptr ? nullptr : xstrdup (comp_dir_)), |
2c99ee5c TT |
109 | language (language_), |
110 | m_last_source_start_addr (last_addr) | |
b248663f TT |
111 | { |
112 | } | |
113 | ||
114 | ~buildsym_compunit () | |
115 | { | |
116 | struct subfile *subfile, *nextsub; | |
117 | ||
6a976300 TT |
118 | if (m_pending_macros != nullptr) |
119 | free_macro_table (m_pending_macros); | |
120 | ||
b248663f TT |
121 | for (subfile = subfiles; |
122 | subfile != NULL; | |
123 | subfile = nextsub) | |
124 | { | |
125 | nextsub = subfile->next; | |
126 | xfree (subfile->name); | |
127 | xfree (subfile->line_vector); | |
128 | xfree (subfile); | |
129 | } | |
e148f09d TT |
130 | |
131 | struct pending *next, *next1; | |
132 | ||
133 | for (next = m_file_symbols; next != NULL; next = next1) | |
134 | { | |
135 | next1 = next->next; | |
136 | xfree ((void *) next); | |
137 | } | |
138 | ||
139 | for (next = m_global_symbols; next != NULL; next = next1) | |
140 | { | |
141 | next1 = next->next; | |
142 | xfree ((void *) next); | |
143 | } | |
b248663f TT |
144 | } |
145 | ||
c0015d44 TT |
146 | void set_last_source_file (const char *name) |
147 | { | |
148 | char *new_name = name == NULL ? NULL : xstrdup (name); | |
149 | m_last_source_file.reset (new_name); | |
150 | } | |
151 | ||
6a976300 TT |
152 | struct macro_table *get_macro_table () |
153 | { | |
154 | if (m_pending_macros == nullptr) | |
155 | m_pending_macros = new_macro_table (&objfile->per_bfd->storage_obstack, | |
156 | objfile->per_bfd->macro_cache, | |
157 | compunit_symtab); | |
158 | return m_pending_macros; | |
159 | } | |
160 | ||
161 | struct macro_table *release_macros () | |
162 | { | |
163 | struct macro_table *result = m_pending_macros; | |
164 | m_pending_macros = nullptr; | |
165 | return result; | |
166 | } | |
167 | ||
5ac04550 TT |
168 | /* This function is called to discard any pending blocks. */ |
169 | ||
170 | void free_pending_blocks () | |
171 | { | |
172 | m_pending_block_obstack.clear (); | |
173 | m_pending_blocks = nullptr; | |
174 | } | |
175 | ||
43f3e411 DE |
176 | /* The objfile we're reading debug info from. */ |
177 | struct objfile *objfile; | |
178 | ||
179 | /* List of subfiles (source files). | |
180 | Files are added to the front of the list. | |
181 | This is important mostly for the language determination hacks we use, | |
182 | which iterate over previously added files. */ | |
b248663f | 183 | struct subfile *subfiles = nullptr; |
43f3e411 DE |
184 | |
185 | /* The subfile of the main source file. */ | |
b248663f | 186 | struct subfile *main_subfile = nullptr; |
4d663531 | 187 | |
c0015d44 TT |
188 | /* Name of source file whose symbol data we are now processing. This |
189 | comes from a symbol of type N_SO for stabs. For DWARF it comes | |
190 | from the DW_AT_name attribute of a DW_TAG_compile_unit DIE. */ | |
191 | gdb::unique_xmalloc_ptr<char> m_last_source_file; | |
192 | ||
43f3e411 | 193 | /* E.g., DW_AT_comp_dir if DWARF. Space for this is malloc'd. */ |
905eb0e2 | 194 | gdb::unique_xmalloc_ptr<char> comp_dir; |
4d663531 | 195 | |
43f3e411 DE |
196 | /* Space for this is not malloc'd, and is assumed to have at least |
197 | the same lifetime as objfile. */ | |
b248663f | 198 | const char *producer = nullptr; |
4d663531 | 199 | |
43f3e411 DE |
200 | /* Space for this is not malloc'd, and is assumed to have at least |
201 | the same lifetime as objfile. */ | |
b248663f | 202 | const char *debugformat = nullptr; |
94d09e04 | 203 | |
43f3e411 | 204 | /* The compunit we are building. */ |
b248663f | 205 | struct compunit_symtab *compunit_symtab = nullptr; |
5ffa0793 PA |
206 | |
207 | /* Language of this compunit_symtab. */ | |
208 | enum language language; | |
6a976300 TT |
209 | |
210 | /* The macro table for the compilation unit whose symbols we're | |
211 | currently reading. */ | |
212 | struct macro_table *m_pending_macros = nullptr; | |
530fedbc TT |
213 | |
214 | /* True if symtab has line number info. This prevents an otherwise | |
215 | empty symtab from being tossed. */ | |
216 | bool m_have_line_numbers = false; | |
2c99ee5c TT |
217 | |
218 | /* Core address of start of text of current source file. This too | |
219 | comes from the N_SO symbol. For Dwarf it typically comes from the | |
220 | DW_AT_low_pc attribute of a DW_TAG_compile_unit DIE. */ | |
221 | CORE_ADDR m_last_source_start_addr; | |
8419ee53 TT |
222 | |
223 | /* Stack of subfile names. */ | |
224 | std::vector<const char *> m_subfile_stack; | |
6cccc9a8 TT |
225 | |
226 | /* The "using" directives local to lexical context. */ | |
227 | struct using_direct *m_local_using_directives = nullptr; | |
228 | ||
229 | /* Global "using" directives. */ | |
230 | struct using_direct *m_global_using_directives = nullptr; | |
a60f3166 TT |
231 | |
232 | /* The stack of contexts that are pushed by push_context and popped | |
233 | by pop_context. */ | |
234 | std::vector<struct context_stack> m_context_stack; | |
3c65e5b3 TT |
235 | |
236 | struct subfile *m_current_subfile = nullptr; | |
7ea05a7b TT |
237 | |
238 | /* The mutable address map for the compilation unit whose symbols | |
239 | we're currently reading. The symtabs' shared blockvector will | |
240 | point to a fixed copy of this. */ | |
241 | struct addrmap *m_pending_addrmap = nullptr; | |
242 | ||
243 | /* The obstack on which we allocate pending_addrmap. | |
244 | If pending_addrmap is NULL, this is uninitialized; otherwise, it is | |
245 | initialized (and holds pending_addrmap). */ | |
246 | auto_obstack m_pending_addrmap_obstack; | |
247 | ||
248 | /* True if we recorded any ranges in the addrmap that are different | |
249 | from those in the blockvector already. We set this to false when | |
250 | we start processing a symfile, and if it's still false at the | |
251 | end, then we just toss the addrmap. */ | |
252 | bool m_pending_addrmap_interesting = false; | |
5ac04550 TT |
253 | |
254 | /* An obstack used for allocating pending blocks. */ | |
255 | auto_obstack m_pending_block_obstack; | |
256 | ||
257 | /* Pointer to the head of a linked list of symbol blocks which have | |
258 | already been finalized (lexical contexts already closed) and which | |
259 | are just waiting to be built into a blockvector when finalizing the | |
260 | associated symtab. */ | |
261 | struct pending_block *m_pending_blocks = nullptr; | |
e148f09d TT |
262 | |
263 | /* Pending static symbols and types at the top level. */ | |
264 | struct pending *m_file_symbols = nullptr; | |
265 | ||
266 | /* Pending global functions and variables. */ | |
267 | struct pending *m_global_symbols = nullptr; | |
268 | ||
269 | /* Pending symbols that are local to the lexical context. */ | |
270 | struct pending *m_local_symbols = nullptr; | |
43f3e411 | 271 | }; |
94d09e04 | 272 | |
43f3e411 DE |
273 | /* The work-in-progress of the compunit we are building. |
274 | This is created first, before any subfiles by start_symtab. */ | |
7bab9b58 | 275 | |
43f3e411 | 276 | static struct buildsym_compunit *buildsym_compunit; |
7bab9b58 | 277 | |
93eed41f TT |
278 | /* List of blocks already made (lexical contexts already closed). |
279 | This is used at the end to make the blockvector. */ | |
280 | ||
281 | struct pending_block | |
282 | { | |
283 | struct pending_block *next; | |
284 | struct block *block; | |
285 | }; | |
286 | ||
0ab9ce85 DE |
287 | static void free_buildsym_compunit (void); |
288 | ||
c906108c | 289 | static int compare_line_numbers (const void *ln1p, const void *ln2p); |
0b49e518 TT |
290 | |
291 | static void record_pending_block (struct objfile *objfile, | |
292 | struct block *block, | |
293 | struct pending_block *opblock); | |
c906108c SS |
294 | |
295 | /* Initial sizes of data structures. These are realloc'd larger if | |
296 | needed, and realloc'd down to the size actually used, when | |
297 | completed. */ | |
298 | ||
c906108c SS |
299 | #define INITIAL_LINE_VECTOR_LENGTH 1000 |
300 | \f | |
301 | ||
4a64f543 | 302 | /* Maintain the lists of symbols and blocks. */ |
c906108c | 303 | |
93bf33fd | 304 | /* Add a symbol to one of the lists of symbols. */ |
c906108c SS |
305 | |
306 | void | |
307 | add_symbol_to_list (struct symbol *symbol, struct pending **listhead) | |
308 | { | |
52f0bd74 | 309 | struct pending *link; |
c906108c SS |
310 | |
311 | /* If this is an alias for another symbol, don't add it. */ | |
312 | if (symbol->ginfo.name && symbol->ginfo.name[0] == '#') | |
313 | return; | |
314 | ||
4a64f543 | 315 | /* We keep PENDINGSIZE symbols in each link of the list. If we |
c906108c SS |
316 | don't have a link with room in it, add a new link. */ |
317 | if (*listhead == NULL || (*listhead)->nsyms == PENDINGSIZE) | |
318 | { | |
1d376700 | 319 | link = XNEW (struct pending); |
c906108c SS |
320 | link->next = *listhead; |
321 | *listhead = link; | |
322 | link->nsyms = 0; | |
323 | } | |
324 | ||
325 | (*listhead)->symbol[(*listhead)->nsyms++] = symbol; | |
326 | } | |
327 | ||
328 | /* Find a symbol named NAME on a LIST. NAME need not be | |
329 | '\0'-terminated; LENGTH is the length of the name. */ | |
330 | ||
331 | struct symbol * | |
332 | find_symbol_in_list (struct pending *list, char *name, int length) | |
333 | { | |
334 | int j; | |
0d5cff50 | 335 | const char *pp; |
c906108c SS |
336 | |
337 | while (list != NULL) | |
338 | { | |
339 | for (j = list->nsyms; --j >= 0;) | |
340 | { | |
3567439c | 341 | pp = SYMBOL_LINKAGE_NAME (list->symbol[j]); |
5aafa1cc PM |
342 | if (*pp == *name && strncmp (pp, name, length) == 0 |
343 | && pp[length] == '\0') | |
c906108c SS |
344 | { |
345 | return (list->symbol[j]); | |
346 | } | |
347 | } | |
348 | list = list->next; | |
349 | } | |
350 | return (NULL); | |
351 | } | |
352 | ||
33c7c59d TT |
353 | /* At end of reading syms, or in case of quit, ensure everything |
354 | associated with building symtabs is freed. | |
0ab9ce85 DE |
355 | |
356 | N.B. This is *not* intended to be used when building psymtabs. Some debug | |
357 | info readers call this anyway, which is harmless if confusing. */ | |
c906108c | 358 | |
33c7c59d | 359 | scoped_free_pendings::~scoped_free_pendings () |
c906108c | 360 | { |
0ab9ce85 | 361 | free_buildsym_compunit (); |
c906108c SS |
362 | } |
363 | ||
c906108c SS |
364 | /* Take one of the lists of symbols and make a block from it. Keep |
365 | the order the symbols have in the list (reversed from the input | |
366 | file). Put the block on the list of pending blocks. */ | |
367 | ||
84a146c9 | 368 | static struct block * |
63e43d3a PMR |
369 | finish_block_internal (struct symbol *symbol, |
370 | struct pending **listhead, | |
84a146c9 | 371 | struct pending_block *old_blocks, |
63e43d3a | 372 | const struct dynamic_prop *static_link, |
84a146c9 | 373 | CORE_ADDR start, CORE_ADDR end, |
6d30eef8 | 374 | int is_global, int expandable) |
c906108c | 375 | { |
43f3e411 | 376 | struct objfile *objfile = buildsym_compunit->objfile; |
5af949e3 | 377 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
52f0bd74 AC |
378 | struct pending *next, *next1; |
379 | struct block *block; | |
380 | struct pending_block *pblock; | |
c906108c | 381 | struct pending_block *opblock; |
c906108c | 382 | |
84a146c9 TT |
383 | block = (is_global |
384 | ? allocate_global_block (&objfile->objfile_obstack) | |
385 | : allocate_block (&objfile->objfile_obstack)); | |
c906108c | 386 | |
261397f8 DJ |
387 | if (symbol) |
388 | { | |
5ffa0793 PA |
389 | BLOCK_DICT (block) |
390 | = dict_create_linear (&objfile->objfile_obstack, | |
391 | buildsym_compunit->language, *listhead); | |
261397f8 DJ |
392 | } |
393 | else | |
c906108c | 394 | { |
6d30eef8 DE |
395 | if (expandable) |
396 | { | |
5ffa0793 PA |
397 | BLOCK_DICT (block) |
398 | = dict_create_hashed_expandable (buildsym_compunit->language); | |
6d30eef8 DE |
399 | dict_add_pending (BLOCK_DICT (block), *listhead); |
400 | } | |
401 | else | |
402 | { | |
403 | BLOCK_DICT (block) = | |
5ffa0793 PA |
404 | dict_create_hashed (&objfile->objfile_obstack, |
405 | buildsym_compunit->language, *listhead); | |
6d30eef8 | 406 | } |
c906108c SS |
407 | } |
408 | ||
409 | BLOCK_START (block) = start; | |
410 | BLOCK_END (block) = end; | |
c906108c | 411 | |
c906108c SS |
412 | /* Put the block in as the value of the symbol that names it. */ |
413 | ||
414 | if (symbol) | |
415 | { | |
416 | struct type *ftype = SYMBOL_TYPE (symbol); | |
de4f826b | 417 | struct dict_iterator iter; |
c906108c SS |
418 | SYMBOL_BLOCK_VALUE (symbol) = block; |
419 | BLOCK_FUNCTION (block) = symbol; | |
420 | ||
421 | if (TYPE_NFIELDS (ftype) <= 0) | |
422 | { | |
423 | /* No parameter type information is recorded with the | |
424 | function's type. Set that from the type of the | |
4a64f543 | 425 | parameter symbols. */ |
c906108c SS |
426 | int nparams = 0, iparams; |
427 | struct symbol *sym; | |
8157b174 TT |
428 | |
429 | /* Here we want to directly access the dictionary, because | |
430 | we haven't fully initialized the block yet. */ | |
431 | ALL_DICT_SYMBOLS (BLOCK_DICT (block), iter, sym) | |
c906108c | 432 | { |
2a2d4dc3 AS |
433 | if (SYMBOL_IS_ARGUMENT (sym)) |
434 | nparams++; | |
c906108c SS |
435 | } |
436 | if (nparams > 0) | |
437 | { | |
438 | TYPE_NFIELDS (ftype) = nparams; | |
439 | TYPE_FIELDS (ftype) = (struct field *) | |
440 | TYPE_ALLOC (ftype, nparams * sizeof (struct field)); | |
441 | ||
de4f826b | 442 | iparams = 0; |
8157b174 TT |
443 | /* Here we want to directly access the dictionary, because |
444 | we haven't fully initialized the block yet. */ | |
445 | ALL_DICT_SYMBOLS (BLOCK_DICT (block), iter, sym) | |
c906108c | 446 | { |
de4f826b DC |
447 | if (iparams == nparams) |
448 | break; | |
449 | ||
2a2d4dc3 | 450 | if (SYMBOL_IS_ARGUMENT (sym)) |
c906108c | 451 | { |
c906108c | 452 | TYPE_FIELD_TYPE (ftype, iparams) = SYMBOL_TYPE (sym); |
8176bb6d | 453 | TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0; |
c906108c | 454 | iparams++; |
c906108c SS |
455 | } |
456 | } | |
457 | } | |
458 | } | |
459 | } | |
460 | else | |
461 | { | |
462 | BLOCK_FUNCTION (block) = NULL; | |
463 | } | |
464 | ||
63e43d3a PMR |
465 | if (static_link != NULL) |
466 | objfile_register_static_link (objfile, block, static_link); | |
467 | ||
1d376700 | 468 | /* Now free the links of the list, and empty the list. */ |
c906108c SS |
469 | |
470 | for (next = *listhead; next; next = next1) | |
471 | { | |
472 | next1 = next->next; | |
1d376700 | 473 | xfree (next); |
c906108c SS |
474 | } |
475 | *listhead = NULL; | |
476 | ||
c906108c | 477 | /* Check to be sure that the blocks have an end address that is |
4a64f543 | 478 | greater than starting address. */ |
c906108c SS |
479 | |
480 | if (BLOCK_END (block) < BLOCK_START (block)) | |
481 | { | |
482 | if (symbol) | |
483 | { | |
b98664d3 | 484 | complaint (_("block end address less than block " |
3e43a32a | 485 | "start address in %s (patched it)"), |
de5ad195 | 486 | SYMBOL_PRINT_NAME (symbol)); |
c906108c SS |
487 | } |
488 | else | |
489 | { | |
b98664d3 | 490 | complaint (_("block end address %s less than block " |
3e43a32a | 491 | "start address %s (patched it)"), |
5af949e3 UW |
492 | paddress (gdbarch, BLOCK_END (block)), |
493 | paddress (gdbarch, BLOCK_START (block))); | |
c906108c | 494 | } |
4a64f543 | 495 | /* Better than nothing. */ |
c906108c SS |
496 | BLOCK_END (block) = BLOCK_START (block); |
497 | } | |
c906108c SS |
498 | |
499 | /* Install this block as the superblock of all blocks made since the | |
500 | start of this scope that don't have superblocks yet. */ | |
501 | ||
502 | opblock = NULL; | |
5ac04550 | 503 | for (pblock = buildsym_compunit->m_pending_blocks; |
c0219d42 MS |
504 | pblock && pblock != old_blocks; |
505 | pblock = pblock->next) | |
c906108c SS |
506 | { |
507 | if (BLOCK_SUPERBLOCK (pblock->block) == NULL) | |
508 | { | |
c906108c | 509 | /* Check to be sure the blocks are nested as we receive |
4a64f543 | 510 | them. If the compiler/assembler/linker work, this just |
14711c82 DJ |
511 | burns a small amount of time. |
512 | ||
513 | Skip blocks which correspond to a function; they're not | |
514 | physically nested inside this other blocks, only | |
515 | lexically nested. */ | |
516 | if (BLOCK_FUNCTION (pblock->block) == NULL | |
517 | && (BLOCK_START (pblock->block) < BLOCK_START (block) | |
518 | || BLOCK_END (pblock->block) > BLOCK_END (block))) | |
c906108c SS |
519 | { |
520 | if (symbol) | |
521 | { | |
b98664d3 | 522 | complaint (_("inner block not inside outer block in %s"), |
de5ad195 | 523 | SYMBOL_PRINT_NAME (symbol)); |
c906108c SS |
524 | } |
525 | else | |
526 | { | |
b98664d3 | 527 | complaint (_("inner block (%s-%s) not " |
3e43a32a | 528 | "inside outer block (%s-%s)"), |
5af949e3 UW |
529 | paddress (gdbarch, BLOCK_START (pblock->block)), |
530 | paddress (gdbarch, BLOCK_END (pblock->block)), | |
531 | paddress (gdbarch, BLOCK_START (block)), | |
532 | paddress (gdbarch, BLOCK_END (block))); | |
c906108c SS |
533 | } |
534 | if (BLOCK_START (pblock->block) < BLOCK_START (block)) | |
535 | BLOCK_START (pblock->block) = BLOCK_START (block); | |
536 | if (BLOCK_END (pblock->block) > BLOCK_END (block)) | |
537 | BLOCK_END (pblock->block) = BLOCK_END (block); | |
538 | } | |
c906108c SS |
539 | BLOCK_SUPERBLOCK (pblock->block) = block; |
540 | } | |
541 | opblock = pblock; | |
542 | } | |
543 | ||
22cee43f PMR |
544 | block_set_using (block, |
545 | (is_global | |
6cccc9a8 TT |
546 | ? buildsym_compunit->m_global_using_directives |
547 | : buildsym_compunit->m_local_using_directives), | |
22cee43f PMR |
548 | &objfile->objfile_obstack); |
549 | if (is_global) | |
6cccc9a8 | 550 | buildsym_compunit->m_global_using_directives = NULL; |
22cee43f | 551 | else |
6cccc9a8 | 552 | buildsym_compunit->m_local_using_directives = NULL; |
27aa8d6a | 553 | |
c906108c | 554 | record_pending_block (objfile, block, opblock); |
801e3a5b JB |
555 | |
556 | return block; | |
c906108c SS |
557 | } |
558 | ||
84a146c9 | 559 | struct block * |
63e43d3a | 560 | finish_block (struct symbol *symbol, |
84a146c9 | 561 | struct pending_block *old_blocks, |
63e43d3a | 562 | const struct dynamic_prop *static_link, |
4d663531 | 563 | CORE_ADDR start, CORE_ADDR end) |
84a146c9 | 564 | { |
e148f09d TT |
565 | return finish_block_internal (symbol, &buildsym_compunit->m_local_symbols, |
566 | old_blocks, static_link, | |
4d663531 | 567 | start, end, 0, 0); |
84a146c9 | 568 | } |
de4f826b | 569 | |
c906108c SS |
570 | /* Record BLOCK on the list of all blocks in the file. Put it after |
571 | OPBLOCK, or at the beginning if opblock is NULL. This puts the | |
572 | block in the list after all its subblocks. | |
573 | ||
4a146b47 | 574 | Allocate the pending block struct in the objfile_obstack to save |
c906108c SS |
575 | time. This wastes a little space. FIXME: Is it worth it? */ |
576 | ||
0b49e518 | 577 | static void |
c906108c SS |
578 | record_pending_block (struct objfile *objfile, struct block *block, |
579 | struct pending_block *opblock) | |
580 | { | |
52f0bd74 | 581 | struct pending_block *pblock; |
c906108c | 582 | |
5ac04550 TT |
583 | pblock = XOBNEW (&buildsym_compunit->m_pending_block_obstack, |
584 | struct pending_block); | |
c906108c SS |
585 | pblock->block = block; |
586 | if (opblock) | |
587 | { | |
588 | pblock->next = opblock->next; | |
589 | opblock->next = pblock; | |
590 | } | |
591 | else | |
592 | { | |
5ac04550 TT |
593 | pblock->next = buildsym_compunit->m_pending_blocks; |
594 | buildsym_compunit->m_pending_blocks = pblock; | |
c906108c SS |
595 | } |
596 | } | |
597 | ||
801e3a5b JB |
598 | |
599 | /* Record that the range of addresses from START to END_INCLUSIVE | |
600 | (inclusive, like it says) belongs to BLOCK. BLOCK's start and end | |
601 | addresses must be set already. You must apply this function to all | |
602 | BLOCK's children before applying it to BLOCK. | |
603 | ||
604 | If a call to this function complicates the picture beyond that | |
605 | already provided by BLOCK_START and BLOCK_END, then we create an | |
606 | address map for the block. */ | |
607 | void | |
608 | record_block_range (struct block *block, | |
609 | CORE_ADDR start, CORE_ADDR end_inclusive) | |
610 | { | |
611 | /* If this is any different from the range recorded in the block's | |
612 | own BLOCK_START and BLOCK_END, then note that the address map has | |
613 | become interesting. Note that even if this block doesn't have | |
614 | any "interesting" ranges, some later block might, so we still | |
615 | need to record this block in the addrmap. */ | |
616 | if (start != BLOCK_START (block) | |
617 | || end_inclusive + 1 != BLOCK_END (block)) | |
7ea05a7b | 618 | buildsym_compunit->m_pending_addrmap_interesting = true; |
801e3a5b | 619 | |
7ea05a7b TT |
620 | if (buildsym_compunit->m_pending_addrmap == nullptr) |
621 | buildsym_compunit->m_pending_addrmap | |
622 | = addrmap_create_mutable (&buildsym_compunit->m_pending_addrmap_obstack); | |
801e3a5b | 623 | |
7ea05a7b TT |
624 | addrmap_set_empty (buildsym_compunit->m_pending_addrmap, |
625 | start, end_inclusive, block); | |
801e3a5b JB |
626 | } |
627 | ||
822e978b | 628 | static struct blockvector * |
43f3e411 | 629 | make_blockvector (void) |
c906108c | 630 | { |
43f3e411 | 631 | struct objfile *objfile = buildsym_compunit->objfile; |
52f0bd74 AC |
632 | struct pending_block *next; |
633 | struct blockvector *blockvector; | |
634 | int i; | |
c906108c SS |
635 | |
636 | /* Count the length of the list of blocks. */ | |
637 | ||
5ac04550 TT |
638 | for (next = buildsym_compunit->m_pending_blocks, i = 0; |
639 | next; | |
640 | next = next->next, i++) | |
641 | { | |
c906108c SS |
642 | } |
643 | ||
644 | blockvector = (struct blockvector *) | |
4a146b47 | 645 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
646 | (sizeof (struct blockvector) |
647 | + (i - 1) * sizeof (struct block *))); | |
648 | ||
4a64f543 | 649 | /* Copy the blocks into the blockvector. This is done in reverse |
c906108c | 650 | order, which happens to put the blocks into the proper order |
4a64f543 | 651 | (ascending starting address). finish_block has hair to insert |
c906108c SS |
652 | each block into the list after its subblocks in order to make |
653 | sure this is true. */ | |
654 | ||
655 | BLOCKVECTOR_NBLOCKS (blockvector) = i; | |
5ac04550 | 656 | for (next = buildsym_compunit->m_pending_blocks; next; next = next->next) |
c906108c SS |
657 | { |
658 | BLOCKVECTOR_BLOCK (blockvector, --i) = next->block; | |
659 | } | |
660 | ||
5ac04550 | 661 | buildsym_compunit->free_pending_blocks (); |
c906108c | 662 | |
801e3a5b JB |
663 | /* If we needed an address map for this symtab, record it in the |
664 | blockvector. */ | |
7ea05a7b TT |
665 | if (buildsym_compunit->m_pending_addrmap != nullptr |
666 | && buildsym_compunit->m_pending_addrmap_interesting) | |
801e3a5b | 667 | BLOCKVECTOR_MAP (blockvector) |
7ea05a7b TT |
668 | = addrmap_create_fixed (buildsym_compunit->m_pending_addrmap, |
669 | &objfile->objfile_obstack); | |
801e3a5b JB |
670 | else |
671 | BLOCKVECTOR_MAP (blockvector) = 0; | |
4aad0dfc | 672 | |
c906108c | 673 | /* Some compilers output blocks in the wrong order, but we depend on |
4a64f543 | 674 | their being in the right order so we can binary search. Check the |
4aad0dfc DE |
675 | order and moan about it. |
676 | Note: Remember that the first two blocks are the global and static | |
677 | blocks. We could special case that fact and begin checking at block 2. | |
678 | To avoid making that assumption we do not. */ | |
c906108c SS |
679 | if (BLOCKVECTOR_NBLOCKS (blockvector) > 1) |
680 | { | |
681 | for (i = 1; i < BLOCKVECTOR_NBLOCKS (blockvector); i++) | |
682 | { | |
683 | if (BLOCK_START (BLOCKVECTOR_BLOCK (blockvector, i - 1)) | |
684 | > BLOCK_START (BLOCKVECTOR_BLOCK (blockvector, i))) | |
685 | { | |
59527da0 JB |
686 | CORE_ADDR start |
687 | = BLOCK_START (BLOCKVECTOR_BLOCK (blockvector, i)); | |
c906108c | 688 | |
b98664d3 | 689 | complaint (_("block at %s out of order"), |
bb599908 | 690 | hex_string ((LONGEST) start)); |
c906108c SS |
691 | } |
692 | } | |
693 | } | |
c906108c SS |
694 | |
695 | return (blockvector); | |
696 | } | |
697 | \f | |
698 | /* Start recording information about source code that came from an | |
699 | included (or otherwise merged-in) source file with a different | |
4d663531 | 700 | name. NAME is the name of the file (cannot be NULL). */ |
c906108c SS |
701 | |
702 | void | |
4d663531 | 703 | start_subfile (const char *name) |
c906108c | 704 | { |
43f3e411 | 705 | const char *subfile_dirname; |
52f0bd74 | 706 | struct subfile *subfile; |
c906108c | 707 | |
43f3e411 DE |
708 | gdb_assert (buildsym_compunit != NULL); |
709 | ||
905eb0e2 | 710 | subfile_dirname = buildsym_compunit->comp_dir.get (); |
c906108c | 711 | |
43f3e411 DE |
712 | /* See if this subfile is already registered. */ |
713 | ||
714 | for (subfile = buildsym_compunit->subfiles; subfile; subfile = subfile->next) | |
c906108c | 715 | { |
84ba0adf DJ |
716 | char *subfile_name; |
717 | ||
718 | /* If NAME is an absolute path, and this subfile is not, then | |
719 | attempt to create an absolute path to compare. */ | |
720 | if (IS_ABSOLUTE_PATH (name) | |
721 | && !IS_ABSOLUTE_PATH (subfile->name) | |
43f3e411 DE |
722 | && subfile_dirname != NULL) |
723 | subfile_name = concat (subfile_dirname, SLASH_STRING, | |
6eb7ee03 | 724 | subfile->name, (char *) NULL); |
84ba0adf DJ |
725 | else |
726 | subfile_name = subfile->name; | |
727 | ||
728 | if (FILENAME_CMP (subfile_name, name) == 0) | |
c906108c | 729 | { |
3c65e5b3 | 730 | buildsym_compunit->m_current_subfile = subfile; |
84ba0adf DJ |
731 | if (subfile_name != subfile->name) |
732 | xfree (subfile_name); | |
c906108c SS |
733 | return; |
734 | } | |
84ba0adf DJ |
735 | if (subfile_name != subfile->name) |
736 | xfree (subfile_name); | |
c906108c SS |
737 | } |
738 | ||
43f3e411 | 739 | /* This subfile is not known. Add an entry for it. */ |
c906108c | 740 | |
8d749320 | 741 | subfile = XNEW (struct subfile); |
43f3e411 DE |
742 | memset (subfile, 0, sizeof (struct subfile)); |
743 | subfile->buildsym_compunit = buildsym_compunit; | |
744 | ||
745 | subfile->next = buildsym_compunit->subfiles; | |
746 | buildsym_compunit->subfiles = subfile; | |
747 | ||
3c65e5b3 | 748 | buildsym_compunit->m_current_subfile = subfile; |
c906108c | 749 | |
b74db436 | 750 | subfile->name = xstrdup (name); |
c906108c SS |
751 | |
752 | /* Initialize line-number recording for this subfile. */ | |
753 | subfile->line_vector = NULL; | |
754 | ||
755 | /* Default the source language to whatever can be deduced from the | |
756 | filename. If nothing can be deduced (such as for a C/C++ include | |
757 | file with a ".h" extension), then inherit whatever language the | |
758 | previous subfile had. This kludgery is necessary because there | |
759 | is no standard way in some object formats to record the source | |
760 | language. Also, when symtabs are allocated we try to deduce a | |
761 | language then as well, but it is too late for us to use that | |
762 | information while reading symbols, since symtabs aren't allocated | |
763 | until after all the symbols have been processed for a given | |
4a64f543 | 764 | source file. */ |
c906108c SS |
765 | |
766 | subfile->language = deduce_language_from_filename (subfile->name); | |
5aafa1cc PM |
767 | if (subfile->language == language_unknown |
768 | && subfile->next != NULL) | |
c906108c SS |
769 | { |
770 | subfile->language = subfile->next->language; | |
771 | } | |
772 | ||
25caa7a8 | 773 | /* If the filename of this subfile ends in .C, then change the |
c906108c | 774 | language of any pending subfiles from C to C++. We also accept |
25caa7a8 | 775 | any other C++ suffixes accepted by deduce_language_from_filename. */ |
c906108c SS |
776 | /* Likewise for f2c. */ |
777 | ||
778 | if (subfile->name) | |
779 | { | |
780 | struct subfile *s; | |
781 | enum language sublang = deduce_language_from_filename (subfile->name); | |
782 | ||
783 | if (sublang == language_cplus || sublang == language_fortran) | |
43f3e411 | 784 | for (s = buildsym_compunit->subfiles; s != NULL; s = s->next) |
c906108c SS |
785 | if (s->language == language_c) |
786 | s->language = sublang; | |
787 | } | |
788 | ||
789 | /* And patch up this file if necessary. */ | |
790 | if (subfile->language == language_c | |
791 | && subfile->next != NULL | |
792 | && (subfile->next->language == language_cplus | |
793 | || subfile->next->language == language_fortran)) | |
794 | { | |
795 | subfile->language = subfile->next->language; | |
796 | } | |
797 | } | |
798 | ||
43f3e411 | 799 | /* Delete the buildsym compunit. */ |
7bab9b58 DE |
800 | |
801 | static void | |
43f3e411 | 802 | free_buildsym_compunit (void) |
7bab9b58 | 803 | { |
43f3e411 DE |
804 | if (buildsym_compunit == NULL) |
805 | return; | |
b248663f | 806 | delete buildsym_compunit; |
43f3e411 | 807 | buildsym_compunit = NULL; |
7bab9b58 DE |
808 | } |
809 | ||
c906108c SS |
810 | /* For stabs readers, the first N_SO symbol is assumed to be the |
811 | source file name, and the subfile struct is initialized using that | |
812 | assumption. If another N_SO symbol is later seen, immediately | |
813 | following the first one, then the first one is assumed to be the | |
814 | directory name and the second one is really the source file name. | |
815 | ||
816 | So we have to patch up the subfile struct by moving the old name | |
817 | value to dirname and remembering the new name. Some sanity | |
818 | checking is performed to ensure that the state of the subfile | |
819 | struct is reasonable and that the old name we are assuming to be a | |
4a64f543 | 820 | directory name actually is (by checking for a trailing '/'). */ |
c906108c SS |
821 | |
822 | void | |
a121b7c1 | 823 | patch_subfile_names (struct subfile *subfile, const char *name) |
c906108c | 824 | { |
43f3e411 DE |
825 | if (subfile != NULL |
826 | && buildsym_compunit->comp_dir == NULL | |
827 | && subfile->name != NULL | |
0ba1096a | 828 | && IS_DIR_SEPARATOR (subfile->name[strlen (subfile->name) - 1])) |
c906108c | 829 | { |
905eb0e2 | 830 | buildsym_compunit->comp_dir.reset (subfile->name); |
1b36a34b | 831 | subfile->name = xstrdup (name); |
46212e0b | 832 | set_last_source_file (name); |
c906108c SS |
833 | |
834 | /* Default the source language to whatever can be deduced from | |
835 | the filename. If nothing can be deduced (such as for a C/C++ | |
836 | include file with a ".h" extension), then inherit whatever | |
837 | language the previous subfile had. This kludgery is | |
838 | necessary because there is no standard way in some object | |
839 | formats to record the source language. Also, when symtabs | |
840 | are allocated we try to deduce a language then as well, but | |
841 | it is too late for us to use that information while reading | |
842 | symbols, since symtabs aren't allocated until after all the | |
4a64f543 | 843 | symbols have been processed for a given source file. */ |
c906108c SS |
844 | |
845 | subfile->language = deduce_language_from_filename (subfile->name); | |
5aafa1cc PM |
846 | if (subfile->language == language_unknown |
847 | && subfile->next != NULL) | |
c906108c SS |
848 | { |
849 | subfile->language = subfile->next->language; | |
850 | } | |
851 | } | |
852 | } | |
853 | \f | |
854 | /* Handle the N_BINCL and N_EINCL symbol types that act like N_SOL for | |
855 | switching source files (different subfiles, as we call them) within | |
856 | one object file, but using a stack rather than in an arbitrary | |
857 | order. */ | |
858 | ||
859 | void | |
8419ee53 | 860 | push_subfile () |
c906108c | 861 | { |
8419ee53 | 862 | gdb_assert (buildsym_compunit != nullptr); |
3c65e5b3 TT |
863 | gdb_assert (buildsym_compunit->m_current_subfile != NULL); |
864 | gdb_assert (buildsym_compunit->m_current_subfile->name != NULL); | |
865 | buildsym_compunit->m_subfile_stack.push_back | |
866 | (buildsym_compunit->m_current_subfile->name); | |
c906108c SS |
867 | } |
868 | ||
8419ee53 TT |
869 | const char * |
870 | pop_subfile () | |
c906108c | 871 | { |
8419ee53 TT |
872 | gdb_assert (buildsym_compunit != nullptr); |
873 | gdb_assert (!buildsym_compunit->m_subfile_stack.empty ()); | |
874 | const char *name = buildsym_compunit->m_subfile_stack.back (); | |
875 | buildsym_compunit->m_subfile_stack.pop_back (); | |
876 | return name; | |
c906108c SS |
877 | } |
878 | \f | |
879 | /* Add a linetable entry for line number LINE and address PC to the | |
880 | line vector for SUBFILE. */ | |
881 | ||
882 | void | |
aa1ee363 | 883 | record_line (struct subfile *subfile, int line, CORE_ADDR pc) |
c906108c SS |
884 | { |
885 | struct linetable_entry *e; | |
c906108c | 886 | |
cc59ec59 | 887 | /* Ignore the dummy line number in libg.o */ |
c906108c SS |
888 | if (line == 0xffff) |
889 | { | |
890 | return; | |
891 | } | |
892 | ||
893 | /* Make sure line vector exists and is big enough. */ | |
894 | if (!subfile->line_vector) | |
895 | { | |
896 | subfile->line_vector_length = INITIAL_LINE_VECTOR_LENGTH; | |
897 | subfile->line_vector = (struct linetable *) | |
898 | xmalloc (sizeof (struct linetable) | |
c5aa993b | 899 | + subfile->line_vector_length * sizeof (struct linetable_entry)); |
c906108c | 900 | subfile->line_vector->nitems = 0; |
530fedbc | 901 | buildsym_compunit->m_have_line_numbers = true; |
c906108c SS |
902 | } |
903 | ||
904 | if (subfile->line_vector->nitems + 1 >= subfile->line_vector_length) | |
905 | { | |
906 | subfile->line_vector_length *= 2; | |
907 | subfile->line_vector = (struct linetable *) | |
908 | xrealloc ((char *) subfile->line_vector, | |
909 | (sizeof (struct linetable) | |
910 | + (subfile->line_vector_length | |
911 | * sizeof (struct linetable_entry)))); | |
912 | } | |
913 | ||
607ae575 DJ |
914 | /* Normally, we treat lines as unsorted. But the end of sequence |
915 | marker is special. We sort line markers at the same PC by line | |
916 | number, so end of sequence markers (which have line == 0) appear | |
917 | first. This is right if the marker ends the previous function, | |
918 | and there is no padding before the next function. But it is | |
919 | wrong if the previous line was empty and we are now marking a | |
920 | switch to a different subfile. We must leave the end of sequence | |
921 | marker at the end of this group of lines, not sort the empty line | |
922 | to after the marker. The easiest way to accomplish this is to | |
923 | delete any empty lines from our table, if they are followed by | |
924 | end of sequence markers. All we lose is the ability to set | |
925 | breakpoints at some lines which contain no instructions | |
926 | anyway. */ | |
927 | if (line == 0 && subfile->line_vector->nitems > 0) | |
928 | { | |
929 | e = subfile->line_vector->item + subfile->line_vector->nitems - 1; | |
930 | while (subfile->line_vector->nitems > 0 && e->pc == pc) | |
931 | { | |
932 | e--; | |
933 | subfile->line_vector->nitems--; | |
934 | } | |
935 | } | |
936 | ||
c906108c SS |
937 | e = subfile->line_vector->item + subfile->line_vector->nitems++; |
938 | e->line = line; | |
607ae575 | 939 | e->pc = pc; |
c906108c SS |
940 | } |
941 | ||
942 | /* Needed in order to sort line tables from IBM xcoff files. Sigh! */ | |
943 | ||
944 | static int | |
945 | compare_line_numbers (const void *ln1p, const void *ln2p) | |
946 | { | |
947 | struct linetable_entry *ln1 = (struct linetable_entry *) ln1p; | |
948 | struct linetable_entry *ln2 = (struct linetable_entry *) ln2p; | |
949 | ||
950 | /* Note: this code does not assume that CORE_ADDRs can fit in ints. | |
951 | Please keep it that way. */ | |
952 | if (ln1->pc < ln2->pc) | |
953 | return -1; | |
954 | ||
955 | if (ln1->pc > ln2->pc) | |
956 | return 1; | |
957 | ||
958 | /* If pc equal, sort by line. I'm not sure whether this is optimum | |
959 | behavior (see comment at struct linetable in symtab.h). */ | |
960 | return ln1->line - ln2->line; | |
961 | } | |
962 | \f | |
43f3e411 DE |
963 | /* See buildsym.h. */ |
964 | ||
965 | struct compunit_symtab * | |
966 | buildsym_compunit_symtab (void) | |
967 | { | |
968 | gdb_assert (buildsym_compunit != NULL); | |
969 | ||
970 | return buildsym_compunit->compunit_symtab; | |
971 | } | |
972 | ||
973 | /* See buildsym.h. */ | |
fc474241 DE |
974 | |
975 | struct macro_table * | |
43f3e411 | 976 | get_macro_table (void) |
fc474241 | 977 | { |
43f3e411 DE |
978 | struct objfile *objfile; |
979 | ||
980 | gdb_assert (buildsym_compunit != NULL); | |
6a976300 | 981 | return buildsym_compunit->get_macro_table (); |
fc474241 DE |
982 | } |
983 | \f | |
4d663531 | 984 | /* Start a new symtab for a new source file in OBJFILE. Called, for example, |
c906108c SS |
985 | when a stabs symbol of type N_SO is seen, or when a DWARF |
986 | TAG_compile_unit DIE is seen. It indicates the start of data for | |
0b0287a1 DE |
987 | one original source file. |
988 | ||
5ffa0793 PA |
989 | NAME is the name of the file (cannot be NULL). COMP_DIR is the |
990 | directory in which the file was compiled (or NULL if not known). | |
991 | START_ADDR is the lowest address of objects in the file (or 0 if | |
992 | not known). LANGUAGE is the language of the source file, or | |
993 | language_unknown if not known, in which case it'll be deduced from | |
994 | the filename. */ | |
c906108c | 995 | |
43f3e411 | 996 | struct compunit_symtab * |
4d663531 | 997 | start_symtab (struct objfile *objfile, const char *name, const char *comp_dir, |
5ffa0793 | 998 | CORE_ADDR start_addr, enum language language) |
c906108c | 999 | { |
b37dd3bc TT |
1000 | /* These should have been reset either by successful completion of building |
1001 | a symtab, or by the scoped_free_pendings destructor. */ | |
1002 | gdb_assert (buildsym_compunit == nullptr); | |
43f3e411 | 1003 | |
c0015d44 | 1004 | buildsym_compunit = new struct buildsym_compunit (objfile, name, comp_dir, |
2c99ee5c | 1005 | language, start_addr); |
43f3e411 | 1006 | |
0ab9ce85 | 1007 | /* Allocate the compunit symtab now. The caller needs it to allocate |
43f3e411 DE |
1008 | non-primary symtabs. It is also needed by get_macro_table. */ |
1009 | buildsym_compunit->compunit_symtab = allocate_compunit_symtab (objfile, | |
1010 | name); | |
1011 | ||
1012 | /* Build the subfile for NAME (the main source file) so that we can record | |
1013 | a pointer to it for later. | |
1014 | IMPORTANT: Do not allocate a struct symtab for NAME here. | |
1015 | It can happen that the debug info provides a different path to NAME than | |
1016 | DIRNAME,NAME. We cope with this in watch_main_source_file_lossage but | |
1017 | that only works if the main_subfile doesn't have a symtab yet. */ | |
4d663531 | 1018 | start_subfile (name); |
7bab9b58 DE |
1019 | /* Save this so that we don't have to go looking for it at the end |
1020 | of the subfiles list. */ | |
3c65e5b3 | 1021 | buildsym_compunit->main_subfile = buildsym_compunit->m_current_subfile; |
43f3e411 | 1022 | |
43f3e411 | 1023 | return buildsym_compunit->compunit_symtab; |
6d30eef8 DE |
1024 | } |
1025 | ||
1026 | /* Restart compilation for a symtab. | |
0ab9ce85 DE |
1027 | CUST is the result of end_expandable_symtab. |
1028 | NAME, START_ADDR are the source file we are resuming with. | |
1029 | ||
6d30eef8 | 1030 | This is used when a symtab is built from multiple sources. |
0ab9ce85 DE |
1031 | The symtab is first built with start_symtab/end_expandable_symtab |
1032 | and then for each additional piece call restart_symtab/augment_*_symtab. | |
1033 | Note: At the moment there is only augment_type_symtab. */ | |
6d30eef8 DE |
1034 | |
1035 | void | |
0ab9ce85 DE |
1036 | restart_symtab (struct compunit_symtab *cust, |
1037 | const char *name, CORE_ADDR start_addr) | |
6d30eef8 | 1038 | { |
b37dd3bc TT |
1039 | /* These should have been reset either by successful completion of building |
1040 | a symtab, or by the scoped_free_pendings destructor. */ | |
1041 | gdb_assert (buildsym_compunit == nullptr); | |
c906108c | 1042 | |
b248663f TT |
1043 | buildsym_compunit |
1044 | = new struct buildsym_compunit (COMPUNIT_OBJFILE (cust), | |
c0015d44 | 1045 | name, |
b248663f | 1046 | COMPUNIT_DIRNAME (cust), |
2c99ee5c TT |
1047 | compunit_language (cust), |
1048 | start_addr); | |
0ab9ce85 | 1049 | buildsym_compunit->compunit_symtab = cust; |
c906108c SS |
1050 | } |
1051 | ||
4a64f543 MS |
1052 | /* Subroutine of end_symtab to simplify it. Look for a subfile that |
1053 | matches the main source file's basename. If there is only one, and | |
1054 | if the main source file doesn't have any symbol or line number | |
1055 | information, then copy this file's symtab and line_vector to the | |
1056 | main source file's subfile and discard the other subfile. This can | |
1057 | happen because of a compiler bug or from the user playing games | |
1058 | with #line or from things like a distributed build system that | |
43f3e411 DE |
1059 | manipulates the debug info. This can also happen from an innocent |
1060 | symlink in the paths, we don't canonicalize paths here. */ | |
4584e32e DE |
1061 | |
1062 | static void | |
1063 | watch_main_source_file_lossage (void) | |
1064 | { | |
43f3e411 | 1065 | struct subfile *mainsub, *subfile; |
4584e32e | 1066 | |
43f3e411 | 1067 | /* We have to watch for buildsym_compunit == NULL here. It's a quirk of |
7bab9b58 | 1068 | end_symtab, it can return NULL so there may not be a main subfile. */ |
43f3e411 | 1069 | if (buildsym_compunit == NULL) |
7bab9b58 | 1070 | return; |
4584e32e | 1071 | |
43f3e411 DE |
1072 | /* Get the main source file. */ |
1073 | mainsub = buildsym_compunit->main_subfile; | |
1074 | ||
4a64f543 | 1075 | /* If the main source file doesn't have any line number or symbol |
7bab9b58 | 1076 | info, look for an alias in another subfile. */ |
4584e32e | 1077 | |
43f3e411 DE |
1078 | if (mainsub->line_vector == NULL |
1079 | && mainsub->symtab == NULL) | |
4584e32e | 1080 | { |
43f3e411 | 1081 | const char *mainbase = lbasename (mainsub->name); |
4584e32e DE |
1082 | int nr_matches = 0; |
1083 | struct subfile *prevsub; | |
1084 | struct subfile *mainsub_alias = NULL; | |
1085 | struct subfile *prev_mainsub_alias = NULL; | |
1086 | ||
1087 | prevsub = NULL; | |
43f3e411 DE |
1088 | for (subfile = buildsym_compunit->subfiles; |
1089 | subfile != NULL; | |
4584e32e DE |
1090 | subfile = subfile->next) |
1091 | { | |
43f3e411 DE |
1092 | if (subfile == mainsub) |
1093 | continue; | |
0ba1096a | 1094 | if (filename_cmp (lbasename (subfile->name), mainbase) == 0) |
4584e32e DE |
1095 | { |
1096 | ++nr_matches; | |
1097 | mainsub_alias = subfile; | |
1098 | prev_mainsub_alias = prevsub; | |
1099 | } | |
1100 | prevsub = subfile; | |
1101 | } | |
1102 | ||
1103 | if (nr_matches == 1) | |
1104 | { | |
43f3e411 | 1105 | gdb_assert (mainsub_alias != NULL && mainsub_alias != mainsub); |
4584e32e DE |
1106 | |
1107 | /* Found a match for the main source file. | |
1108 | Copy its line_vector and symtab to the main subfile | |
1109 | and then discard it. */ | |
1110 | ||
43f3e411 DE |
1111 | mainsub->line_vector = mainsub_alias->line_vector; |
1112 | mainsub->line_vector_length = mainsub_alias->line_vector_length; | |
1113 | mainsub->symtab = mainsub_alias->symtab; | |
4584e32e DE |
1114 | |
1115 | if (prev_mainsub_alias == NULL) | |
43f3e411 | 1116 | buildsym_compunit->subfiles = mainsub_alias->next; |
4584e32e DE |
1117 | else |
1118 | prev_mainsub_alias->next = mainsub_alias->next; | |
98387a29 | 1119 | xfree (mainsub_alias->name); |
4584e32e DE |
1120 | xfree (mainsub_alias); |
1121 | } | |
1122 | } | |
1123 | } | |
1124 | ||
b37dd3bc | 1125 | /* Reset state after a successful building of a symtab. */ |
6d30eef8 DE |
1126 | |
1127 | static void | |
1128 | reset_symtab_globals (void) | |
1129 | { | |
0ab9ce85 | 1130 | free_buildsym_compunit (); |
6d30eef8 DE |
1131 | } |
1132 | ||
4359dff1 JK |
1133 | /* Implementation of the first part of end_symtab. It allows modifying |
1134 | STATIC_BLOCK before it gets finalized by end_symtab_from_static_block. | |
1135 | If the returned value is NULL there is no blockvector created for | |
1136 | this symtab (you still must call end_symtab_from_static_block). | |
c906108c | 1137 | |
4359dff1 JK |
1138 | END_ADDR is the same as for end_symtab: the address of the end of the |
1139 | file's text. | |
c906108c | 1140 | |
4359dff1 | 1141 | If EXPANDABLE is non-zero the STATIC_BLOCK dictionary is made |
36586728 TT |
1142 | expandable. |
1143 | ||
1144 | If REQUIRED is non-zero, then a symtab is created even if it does | |
1145 | not contain any symbols. */ | |
6d30eef8 | 1146 | |
4359dff1 | 1147 | struct block * |
4d663531 | 1148 | end_symtab_get_static_block (CORE_ADDR end_addr, int expandable, int required) |
c906108c | 1149 | { |
43f3e411 | 1150 | struct objfile *objfile = buildsym_compunit->objfile; |
4d663531 | 1151 | |
c906108c SS |
1152 | /* Finish the lexical context of the last function in the file; pop |
1153 | the context stack. */ | |
1154 | ||
a60f3166 | 1155 | if (!buildsym_compunit->m_context_stack.empty ()) |
c906108c | 1156 | { |
a60f3166 | 1157 | struct context_stack cstk = pop_context (); |
4359dff1 | 1158 | |
c906108c | 1159 | /* Make a block for the local symbols within. */ |
c233e9c6 | 1160 | finish_block (cstk.name, cstk.old_blocks, NULL, |
a60f3166 | 1161 | cstk.start_addr, end_addr); |
c906108c | 1162 | |
a60f3166 | 1163 | if (!buildsym_compunit->m_context_stack.empty ()) |
c906108c SS |
1164 | { |
1165 | /* This is said to happen with SCO. The old coffread.c | |
1166 | code simply emptied the context stack, so we do the | |
1167 | same. FIXME: Find out why it is happening. This is not | |
1168 | believed to happen in most cases (even for coffread.c); | |
1169 | it used to be an abort(). */ | |
b98664d3 | 1170 | complaint (_("Context stack not empty in end_symtab")); |
a60f3166 | 1171 | buildsym_compunit->m_context_stack.clear (); |
c906108c SS |
1172 | } |
1173 | } | |
1174 | ||
1175 | /* Reordered executables may have out of order pending blocks; if | |
1176 | OBJF_REORDERED is true, then sort the pending blocks. */ | |
6d30eef8 | 1177 | |
5ac04550 | 1178 | if ((objfile->flags & OBJF_REORDERED) && buildsym_compunit->m_pending_blocks) |
c906108c | 1179 | { |
07e7f39f | 1180 | struct pending_block *pb; |
c906108c | 1181 | |
b05628f0 | 1182 | std::vector<block *> barray; |
c906108c | 1183 | |
5ac04550 | 1184 | for (pb = buildsym_compunit->m_pending_blocks; pb != NULL; pb = pb->next) |
b05628f0 | 1185 | barray.push_back (pb->block); |
07e7f39f | 1186 | |
5033013f UW |
1187 | /* Sort blocks by start address in descending order. Blocks with the |
1188 | same start address must remain in the original order to preserve | |
1189 | inline function caller/callee relationships. */ | |
1190 | std::stable_sort (barray.begin (), barray.end (), | |
1191 | [] (const block *a, const block *b) | |
1192 | { | |
1193 | return BLOCK_START (a) > BLOCK_START (b); | |
1194 | }); | |
07e7f39f | 1195 | |
b05628f0 | 1196 | int i = 0; |
5ac04550 | 1197 | for (pb = buildsym_compunit->m_pending_blocks; pb != NULL; pb = pb->next) |
b05628f0 | 1198 | pb->block = barray[i++]; |
c906108c SS |
1199 | } |
1200 | ||
1201 | /* Cleanup any undefined types that have been left hanging around | |
1202 | (this needs to be done before the finish_blocks so that | |
1203 | file_symbols is still good). | |
c5aa993b | 1204 | |
0a0edcd5 | 1205 | Both cleanup_undefined_stabs_types and finish_global_stabs are stabs |
c906108c SS |
1206 | specific, but harmless for other symbol readers, since on gdb |
1207 | startup or when finished reading stabs, the state is set so these | |
1208 | are no-ops. FIXME: Is this handled right in case of QUIT? Can | |
1209 | we make this cleaner? */ | |
1210 | ||
0a0edcd5 | 1211 | cleanup_undefined_stabs_types (objfile); |
c906108c SS |
1212 | finish_global_stabs (objfile); |
1213 | ||
36586728 | 1214 | if (!required |
5ac04550 | 1215 | && buildsym_compunit->m_pending_blocks == NULL |
e148f09d TT |
1216 | && buildsym_compunit->m_file_symbols == NULL |
1217 | && buildsym_compunit->m_global_symbols == NULL | |
530fedbc | 1218 | && !buildsym_compunit->m_have_line_numbers |
6a976300 | 1219 | && buildsym_compunit->m_pending_macros == NULL |
6cccc9a8 | 1220 | && buildsym_compunit->m_global_using_directives == NULL) |
c906108c | 1221 | { |
4359dff1 JK |
1222 | /* Ignore symtabs that have no functions with real debugging info. */ |
1223 | return NULL; | |
1224 | } | |
1225 | else | |
1226 | { | |
1227 | /* Define the STATIC_BLOCK. */ | |
e148f09d | 1228 | return finish_block_internal (NULL, get_file_symbols (), NULL, NULL, |
2c99ee5c TT |
1229 | buildsym_compunit->m_last_source_start_addr, |
1230 | end_addr, 0, expandable); | |
4359dff1 JK |
1231 | } |
1232 | } | |
1233 | ||
7bab9b58 DE |
1234 | /* Subroutine of end_symtab_from_static_block to simplify it. |
1235 | Handle the "have blockvector" case. | |
1236 | See end_symtab_from_static_block for a description of the arguments. */ | |
1237 | ||
43f3e411 | 1238 | static struct compunit_symtab * |
7bab9b58 | 1239 | end_symtab_with_blockvector (struct block *static_block, |
4d663531 | 1240 | int section, int expandable) |
4359dff1 | 1241 | { |
43f3e411 DE |
1242 | struct objfile *objfile = buildsym_compunit->objfile; |
1243 | struct compunit_symtab *cu = buildsym_compunit->compunit_symtab; | |
7bab9b58 | 1244 | struct symtab *symtab; |
4359dff1 JK |
1245 | struct blockvector *blockvector; |
1246 | struct subfile *subfile; | |
7bab9b58 | 1247 | CORE_ADDR end_addr; |
4359dff1 | 1248 | |
7bab9b58 | 1249 | gdb_assert (static_block != NULL); |
43f3e411 DE |
1250 | gdb_assert (buildsym_compunit != NULL); |
1251 | gdb_assert (buildsym_compunit->subfiles != NULL); | |
7bab9b58 DE |
1252 | |
1253 | end_addr = BLOCK_END (static_block); | |
1254 | ||
1255 | /* Create the GLOBAL_BLOCK and build the blockvector. */ | |
e148f09d | 1256 | finish_block_internal (NULL, get_global_symbols (), NULL, NULL, |
2c99ee5c | 1257 | buildsym_compunit->m_last_source_start_addr, end_addr, |
7bab9b58 | 1258 | 1, expandable); |
43f3e411 | 1259 | blockvector = make_blockvector (); |
c906108c | 1260 | |
f56ce883 DE |
1261 | /* Read the line table if it has to be read separately. |
1262 | This is only used by xcoffread.c. */ | |
c295b2e5 | 1263 | if (objfile->sf->sym_read_linetable != NULL) |
f56ce883 | 1264 | objfile->sf->sym_read_linetable (objfile); |
c906108c | 1265 | |
4584e32e DE |
1266 | /* Handle the case where the debug info specifies a different path |
1267 | for the main source file. It can cause us to lose track of its | |
1268 | line number information. */ | |
1269 | watch_main_source_file_lossage (); | |
1270 | ||
43f3e411 DE |
1271 | /* Now create the symtab objects proper, if not already done, |
1272 | one for each subfile. */ | |
c906108c | 1273 | |
43f3e411 DE |
1274 | for (subfile = buildsym_compunit->subfiles; |
1275 | subfile != NULL; | |
1276 | subfile = subfile->next) | |
c906108c SS |
1277 | { |
1278 | int linetablesize = 0; | |
c906108c | 1279 | |
7bab9b58 | 1280 | if (subfile->line_vector) |
c906108c | 1281 | { |
7bab9b58 DE |
1282 | linetablesize = sizeof (struct linetable) + |
1283 | subfile->line_vector->nitems * sizeof (struct linetable_entry); | |
1284 | ||
1285 | /* Like the pending blocks, the line table may be | |
1286 | scrambled in reordered executables. Sort it if | |
1287 | OBJF_REORDERED is true. */ | |
1288 | if (objfile->flags & OBJF_REORDERED) | |
1289 | qsort (subfile->line_vector->item, | |
1290 | subfile->line_vector->nitems, | |
1291 | sizeof (struct linetable_entry), compare_line_numbers); | |
1292 | } | |
9182c5bc | 1293 | |
7bab9b58 DE |
1294 | /* Allocate a symbol table if necessary. */ |
1295 | if (subfile->symtab == NULL) | |
43f3e411 | 1296 | subfile->symtab = allocate_symtab (cu, subfile->name); |
7bab9b58 | 1297 | symtab = subfile->symtab; |
9182c5bc | 1298 | |
7bab9b58 | 1299 | /* Fill in its components. */ |
43f3e411 | 1300 | |
7bab9b58 DE |
1301 | if (subfile->line_vector) |
1302 | { | |
1303 | /* Reallocate the line table on the symbol obstack. */ | |
8435453b | 1304 | SYMTAB_LINETABLE (symtab) = (struct linetable *) |
7bab9b58 | 1305 | obstack_alloc (&objfile->objfile_obstack, linetablesize); |
8435453b DE |
1306 | memcpy (SYMTAB_LINETABLE (symtab), subfile->line_vector, |
1307 | linetablesize); | |
c906108c | 1308 | } |
24be086d | 1309 | else |
c906108c | 1310 | { |
8435453b | 1311 | SYMTAB_LINETABLE (symtab) = NULL; |
c906108c | 1312 | } |
c906108c | 1313 | |
7bab9b58 DE |
1314 | /* Use whatever language we have been using for this |
1315 | subfile, not the one that was deduced in allocate_symtab | |
1316 | from the filename. We already did our own deducing when | |
1317 | we created the subfile, and we may have altered our | |
1318 | opinion of what language it is from things we found in | |
1319 | the symbols. */ | |
1320 | symtab->language = subfile->language; | |
43f3e411 | 1321 | } |
c906108c | 1322 | |
43f3e411 DE |
1323 | /* Make sure the symtab of main_subfile is the first in its list. */ |
1324 | { | |
1325 | struct symtab *main_symtab, *prev_symtab; | |
1326 | ||
1327 | main_symtab = buildsym_compunit->main_subfile->symtab; | |
1328 | prev_symtab = NULL; | |
1329 | ALL_COMPUNIT_FILETABS (cu, symtab) | |
1330 | { | |
1331 | if (symtab == main_symtab) | |
1332 | { | |
1333 | if (prev_symtab != NULL) | |
1334 | { | |
1335 | prev_symtab->next = main_symtab->next; | |
1336 | main_symtab->next = COMPUNIT_FILETABS (cu); | |
1337 | COMPUNIT_FILETABS (cu) = main_symtab; | |
1338 | } | |
1339 | break; | |
1340 | } | |
1341 | prev_symtab = symtab; | |
1342 | } | |
1343 | gdb_assert (main_symtab == COMPUNIT_FILETABS (cu)); | |
1344 | } | |
84a146c9 | 1345 | |
0ab9ce85 | 1346 | /* Fill out the compunit symtab. */ |
84a146c9 | 1347 | |
43f3e411 DE |
1348 | if (buildsym_compunit->comp_dir != NULL) |
1349 | { | |
1350 | /* Reallocate the dirname on the symbol obstack. */ | |
905eb0e2 | 1351 | const char *comp_dir = buildsym_compunit->comp_dir.get (); |
43f3e411 | 1352 | COMPUNIT_DIRNAME (cu) |
224c3ddb | 1353 | = (const char *) obstack_copy0 (&objfile->objfile_obstack, |
905eb0e2 | 1354 | comp_dir, strlen (comp_dir)); |
c906108c SS |
1355 | } |
1356 | ||
43f3e411 DE |
1357 | /* Save the debug format string (if any) in the symtab. */ |
1358 | COMPUNIT_DEBUGFORMAT (cu) = buildsym_compunit->debugformat; | |
1359 | ||
1360 | /* Similarly for the producer. */ | |
1361 | COMPUNIT_PRODUCER (cu) = buildsym_compunit->producer; | |
1362 | ||
1363 | COMPUNIT_BLOCKVECTOR (cu) = blockvector; | |
7bab9b58 | 1364 | { |
43f3e411 | 1365 | struct block *b = BLOCKVECTOR_BLOCK (blockvector, GLOBAL_BLOCK); |
cb1df416 | 1366 | |
43f3e411 | 1367 | set_block_compunit_symtab (b, cu); |
7bab9b58 | 1368 | } |
cb1df416 | 1369 | |
43f3e411 DE |
1370 | COMPUNIT_BLOCK_LINE_SECTION (cu) = section; |
1371 | ||
6a976300 | 1372 | COMPUNIT_MACRO_TABLE (cu) = buildsym_compunit->release_macros (); |
43f3e411 | 1373 | |
7bab9b58 DE |
1374 | /* Default any symbols without a specified symtab to the primary symtab. */ |
1375 | { | |
1376 | int block_i; | |
1377 | ||
43f3e411 DE |
1378 | /* The main source file's symtab. */ |
1379 | symtab = COMPUNIT_FILETABS (cu); | |
1380 | ||
7bab9b58 DE |
1381 | for (block_i = 0; block_i < BLOCKVECTOR_NBLOCKS (blockvector); block_i++) |
1382 | { | |
1383 | struct block *block = BLOCKVECTOR_BLOCK (blockvector, block_i); | |
1384 | struct symbol *sym; | |
1385 | struct dict_iterator iter; | |
1386 | ||
1387 | /* Inlined functions may have symbols not in the global or | |
1388 | static symbol lists. */ | |
1389 | if (BLOCK_FUNCTION (block) != NULL) | |
08be3fe3 DE |
1390 | if (symbol_symtab (BLOCK_FUNCTION (block)) == NULL) |
1391 | symbol_set_symtab (BLOCK_FUNCTION (block), symtab); | |
7bab9b58 DE |
1392 | |
1393 | /* Note that we only want to fix up symbols from the local | |
1394 | blocks, not blocks coming from included symtabs. That is why | |
1395 | we use ALL_DICT_SYMBOLS here and not ALL_BLOCK_SYMBOLS. */ | |
1396 | ALL_DICT_SYMBOLS (BLOCK_DICT (block), iter, sym) | |
08be3fe3 DE |
1397 | if (symbol_symtab (sym) == NULL) |
1398 | symbol_set_symtab (sym, symtab); | |
7bab9b58 DE |
1399 | } |
1400 | } | |
edb3359d | 1401 | |
43f3e411 | 1402 | add_compunit_symtab_to_objfile (cu); |
43f3e411 DE |
1403 | |
1404 | return cu; | |
7bab9b58 DE |
1405 | } |
1406 | ||
1407 | /* Implementation of the second part of end_symtab. Pass STATIC_BLOCK | |
1408 | as value returned by end_symtab_get_static_block. | |
1409 | ||
1410 | SECTION is the same as for end_symtab: the section number | |
1411 | (in objfile->section_offsets) of the blockvector and linetable. | |
1412 | ||
1413 | If EXPANDABLE is non-zero the GLOBAL_BLOCK dictionary is made | |
1414 | expandable. */ | |
1415 | ||
43f3e411 | 1416 | struct compunit_symtab * |
7bab9b58 | 1417 | end_symtab_from_static_block (struct block *static_block, |
4d663531 | 1418 | int section, int expandable) |
7bab9b58 | 1419 | { |
43f3e411 | 1420 | struct compunit_symtab *cu; |
7bab9b58 DE |
1421 | |
1422 | if (static_block == NULL) | |
1423 | { | |
0ab9ce85 DE |
1424 | /* Handle the "no blockvector" case. |
1425 | When this happens there is nothing to record, so there's nothing | |
1426 | to do: memory will be freed up later. | |
1427 | ||
1428 | Note: We won't be adding a compunit to the objfile's list of | |
1429 | compunits, so there's nothing to unchain. However, since each symtab | |
1430 | is added to the objfile's obstack we can't free that space. | |
1431 | We could do better, but this is believed to be a sufficiently rare | |
1432 | event. */ | |
43f3e411 | 1433 | cu = NULL; |
7bab9b58 DE |
1434 | } |
1435 | else | |
43f3e411 | 1436 | cu = end_symtab_with_blockvector (static_block, section, expandable); |
cb1df416 | 1437 | |
6d30eef8 DE |
1438 | reset_symtab_globals (); |
1439 | ||
43f3e411 | 1440 | return cu; |
6d30eef8 DE |
1441 | } |
1442 | ||
4359dff1 JK |
1443 | /* Finish the symbol definitions for one main source file, close off |
1444 | all the lexical contexts for that file (creating struct block's for | |
1445 | them), then make the struct symtab for that file and put it in the | |
1446 | list of all such. | |
1447 | ||
1448 | END_ADDR is the address of the end of the file's text. SECTION is | |
1449 | the section number (in objfile->section_offsets) of the blockvector | |
1450 | and linetable. | |
1451 | ||
1452 | Note that it is possible for end_symtab() to return NULL. In | |
1453 | particular, for the DWARF case at least, it will return NULL when | |
1454 | it finds a compilation unit that has exactly one DIE, a | |
1455 | TAG_compile_unit DIE. This can happen when we link in an object | |
1456 | file that was compiled from an empty source file. Returning NULL | |
1457 | is probably not the correct thing to do, because then gdb will | |
1458 | never know about this empty file (FIXME). | |
1459 | ||
1460 | If you need to modify STATIC_BLOCK before it is finalized you should | |
1461 | call end_symtab_get_static_block and end_symtab_from_static_block | |
1462 | yourself. */ | |
6d30eef8 | 1463 | |
43f3e411 | 1464 | struct compunit_symtab * |
4d663531 | 1465 | end_symtab (CORE_ADDR end_addr, int section) |
6d30eef8 | 1466 | { |
4359dff1 JK |
1467 | struct block *static_block; |
1468 | ||
4d663531 DE |
1469 | static_block = end_symtab_get_static_block (end_addr, 0, 0); |
1470 | return end_symtab_from_static_block (static_block, section, 0); | |
6d30eef8 DE |
1471 | } |
1472 | ||
4359dff1 | 1473 | /* Same as end_symtab except create a symtab that can be later added to. */ |
6d30eef8 | 1474 | |
43f3e411 | 1475 | struct compunit_symtab * |
4d663531 | 1476 | end_expandable_symtab (CORE_ADDR end_addr, int section) |
6d30eef8 | 1477 | { |
4359dff1 JK |
1478 | struct block *static_block; |
1479 | ||
4d663531 DE |
1480 | static_block = end_symtab_get_static_block (end_addr, 1, 0); |
1481 | return end_symtab_from_static_block (static_block, section, 1); | |
6d30eef8 DE |
1482 | } |
1483 | ||
1484 | /* Subroutine of augment_type_symtab to simplify it. | |
43f3e411 DE |
1485 | Attach the main source file's symtab to all symbols in PENDING_LIST that |
1486 | don't have one. */ | |
6d30eef8 DE |
1487 | |
1488 | static void | |
43f3e411 DE |
1489 | set_missing_symtab (struct pending *pending_list, |
1490 | struct compunit_symtab *cu) | |
6d30eef8 DE |
1491 | { |
1492 | struct pending *pending; | |
1493 | int i; | |
1494 | ||
1495 | for (pending = pending_list; pending != NULL; pending = pending->next) | |
801e3a5b | 1496 | { |
6d30eef8 DE |
1497 | for (i = 0; i < pending->nsyms; ++i) |
1498 | { | |
08be3fe3 DE |
1499 | if (symbol_symtab (pending->symbol[i]) == NULL) |
1500 | symbol_set_symtab (pending->symbol[i], COMPUNIT_FILETABS (cu)); | |
6d30eef8 | 1501 | } |
801e3a5b | 1502 | } |
6d30eef8 | 1503 | } |
c906108c | 1504 | |
6d30eef8 DE |
1505 | /* Same as end_symtab, but for the case where we're adding more symbols |
1506 | to an existing symtab that is known to contain only type information. | |
1507 | This is the case for DWARF4 Type Units. */ | |
1508 | ||
1509 | void | |
0ab9ce85 | 1510 | augment_type_symtab (void) |
6d30eef8 | 1511 | { |
0ab9ce85 | 1512 | struct compunit_symtab *cust = buildsym_compunit->compunit_symtab; |
43f3e411 | 1513 | const struct blockvector *blockvector = COMPUNIT_BLOCKVECTOR (cust); |
6d30eef8 | 1514 | |
a60f3166 TT |
1515 | if (!buildsym_compunit->m_context_stack.empty ()) |
1516 | complaint (_("Context stack not empty in augment_type_symtab")); | |
5ac04550 | 1517 | if (buildsym_compunit->m_pending_blocks != NULL) |
b98664d3 | 1518 | complaint (_("Blocks in a type symtab")); |
6a976300 | 1519 | if (buildsym_compunit->m_pending_macros != NULL) |
b98664d3 | 1520 | complaint (_("Macro in a type symtab")); |
530fedbc | 1521 | if (buildsym_compunit->m_have_line_numbers) |
b98664d3 | 1522 | complaint (_("Line numbers recorded in a type symtab")); |
6d30eef8 | 1523 | |
e148f09d | 1524 | if (buildsym_compunit->m_file_symbols != NULL) |
6d30eef8 DE |
1525 | { |
1526 | struct block *block = BLOCKVECTOR_BLOCK (blockvector, STATIC_BLOCK); | |
1527 | ||
1528 | /* First mark any symbols without a specified symtab as belonging | |
1529 | to the primary symtab. */ | |
e148f09d | 1530 | set_missing_symtab (buildsym_compunit->m_file_symbols, cust); |
6d30eef8 | 1531 | |
e148f09d | 1532 | dict_add_pending (BLOCK_DICT (block), buildsym_compunit->m_file_symbols); |
6d30eef8 DE |
1533 | } |
1534 | ||
e148f09d | 1535 | if (buildsym_compunit->m_global_symbols != NULL) |
6d30eef8 DE |
1536 | { |
1537 | struct block *block = BLOCKVECTOR_BLOCK (blockvector, GLOBAL_BLOCK); | |
1538 | ||
1539 | /* First mark any symbols without a specified symtab as belonging | |
1540 | to the primary symtab. */ | |
e148f09d | 1541 | set_missing_symtab (buildsym_compunit->m_global_symbols, cust); |
6d30eef8 | 1542 | |
e148f09d TT |
1543 | dict_add_pending (BLOCK_DICT (block), |
1544 | buildsym_compunit->m_global_symbols); | |
6d30eef8 DE |
1545 | } |
1546 | ||
1547 | reset_symtab_globals (); | |
c906108c SS |
1548 | } |
1549 | ||
1550 | /* Push a context block. Args are an identifying nesting level | |
1551 | (checkable when you pop it), and the starting PC address of this | |
1552 | context. */ | |
1553 | ||
1554 | struct context_stack * | |
1555 | push_context (int desc, CORE_ADDR valu) | |
1556 | { | |
a60f3166 | 1557 | gdb_assert (buildsym_compunit != nullptr); |
c906108c | 1558 | |
a60f3166 TT |
1559 | buildsym_compunit->m_context_stack.emplace_back (); |
1560 | struct context_stack *newobj = &buildsym_compunit->m_context_stack.back (); | |
c906108c | 1561 | |
fe978cb0 | 1562 | newobj->depth = desc; |
e148f09d | 1563 | newobj->locals = buildsym_compunit->m_local_symbols; |
5ac04550 | 1564 | newobj->old_blocks = buildsym_compunit->m_pending_blocks; |
fe978cb0 | 1565 | newobj->start_addr = valu; |
6cccc9a8 TT |
1566 | newobj->local_using_directives |
1567 | = buildsym_compunit->m_local_using_directives; | |
fe978cb0 | 1568 | newobj->name = NULL; |
c906108c | 1569 | |
e148f09d | 1570 | buildsym_compunit->m_local_symbols = NULL; |
6cccc9a8 | 1571 | buildsym_compunit->m_local_using_directives = NULL; |
c906108c | 1572 | |
fe978cb0 | 1573 | return newobj; |
c906108c | 1574 | } |
0c5e171a | 1575 | |
a672ef13 | 1576 | /* Pop a context block. Returns the address of the context block just |
4a64f543 | 1577 | popped. */ |
a672ef13 | 1578 | |
a60f3166 TT |
1579 | struct context_stack |
1580 | pop_context () | |
0c5e171a | 1581 | { |
a60f3166 TT |
1582 | gdb_assert (buildsym_compunit != nullptr); |
1583 | gdb_assert (!buildsym_compunit->m_context_stack.empty ()); | |
1584 | struct context_stack result = buildsym_compunit->m_context_stack.back (); | |
1585 | buildsym_compunit->m_context_stack.pop_back (); | |
1586 | return result; | |
0c5e171a KD |
1587 | } |
1588 | ||
c906108c | 1589 | \f |
357e46e7 | 1590 | |
c906108c | 1591 | void |
554d387d | 1592 | record_debugformat (const char *format) |
c906108c | 1593 | { |
43f3e411 | 1594 | buildsym_compunit->debugformat = format; |
c906108c SS |
1595 | } |
1596 | ||
303b6f5d DJ |
1597 | void |
1598 | record_producer (const char *producer) | |
1599 | { | |
43f3e411 | 1600 | buildsym_compunit->producer = producer; |
303b6f5d DJ |
1601 | } |
1602 | ||
c906108c | 1603 | \f |
46212e0b | 1604 | |
46212e0b TT |
1605 | /* See buildsym.h. */ |
1606 | ||
1607 | void | |
1608 | set_last_source_file (const char *name) | |
1609 | { | |
c0015d44 TT |
1610 | gdb_assert (buildsym_compunit != nullptr || name == nullptr); |
1611 | if (buildsym_compunit != nullptr) | |
1612 | buildsym_compunit->set_last_source_file (name); | |
46212e0b TT |
1613 | } |
1614 | ||
1615 | /* See buildsym.h. */ | |
1616 | ||
1617 | const char * | |
1618 | get_last_source_file (void) | |
1619 | { | |
c0015d44 TT |
1620 | if (buildsym_compunit == nullptr) |
1621 | return nullptr; | |
1622 | return buildsym_compunit->m_last_source_file.get (); | |
46212e0b TT |
1623 | } |
1624 | ||
2c99ee5c TT |
1625 | /* See buildsym.h. */ |
1626 | ||
1627 | void | |
1628 | set_last_source_start_addr (CORE_ADDR addr) | |
1629 | { | |
1630 | gdb_assert (buildsym_compunit != nullptr); | |
1631 | buildsym_compunit->m_last_source_start_addr = addr; | |
1632 | } | |
1633 | ||
1634 | /* See buildsym.h. */ | |
1635 | ||
1636 | CORE_ADDR | |
1637 | get_last_source_start_addr () | |
1638 | { | |
1639 | gdb_assert (buildsym_compunit != nullptr); | |
1640 | return buildsym_compunit->m_last_source_start_addr; | |
1641 | } | |
1642 | ||
6cccc9a8 TT |
1643 | /* See buildsym.h. */ |
1644 | ||
1645 | struct using_direct ** | |
1646 | get_local_using_directives () | |
1647 | { | |
1648 | gdb_assert (buildsym_compunit != nullptr); | |
1649 | return &buildsym_compunit->m_local_using_directives; | |
1650 | } | |
1651 | ||
1652 | /* See buildsym.h. */ | |
1653 | ||
1654 | void | |
1655 | set_local_using_directives (struct using_direct *new_local) | |
1656 | { | |
1657 | gdb_assert (buildsym_compunit != nullptr); | |
1658 | buildsym_compunit->m_local_using_directives = new_local; | |
1659 | } | |
1660 | ||
1661 | /* See buildsym.h. */ | |
1662 | ||
1663 | struct using_direct ** | |
1664 | get_global_using_directives () | |
1665 | { | |
1666 | gdb_assert (buildsym_compunit != nullptr); | |
1667 | return &buildsym_compunit->m_global_using_directives; | |
1668 | } | |
1669 | ||
a60f3166 TT |
1670 | /* See buildsym.h. */ |
1671 | ||
1672 | bool | |
1673 | outermost_context_p () | |
1674 | { | |
1675 | gdb_assert (buildsym_compunit != nullptr); | |
1676 | return buildsym_compunit->m_context_stack.empty (); | |
1677 | } | |
1678 | ||
1679 | /* See buildsym.h. */ | |
1680 | ||
1681 | struct context_stack * | |
1682 | get_current_context_stack () | |
1683 | { | |
1684 | gdb_assert (buildsym_compunit != nullptr); | |
1685 | if (buildsym_compunit->m_context_stack.empty ()) | |
1686 | return nullptr; | |
1687 | return &buildsym_compunit->m_context_stack.back (); | |
1688 | } | |
1689 | ||
1690 | /* See buildsym.h. */ | |
1691 | ||
1692 | int | |
1693 | get_context_stack_depth () | |
1694 | { | |
1695 | gdb_assert (buildsym_compunit != nullptr); | |
1696 | return buildsym_compunit->m_context_stack.size (); | |
1697 | } | |
1698 | ||
3c65e5b3 TT |
1699 | /* See buildsym.h. */ |
1700 | ||
1701 | struct subfile * | |
1702 | get_current_subfile () | |
1703 | { | |
1704 | gdb_assert (buildsym_compunit != nullptr); | |
1705 | return buildsym_compunit->m_current_subfile; | |
1706 | } | |
1707 | ||
e148f09d TT |
1708 | /* See buildsym.h. */ |
1709 | ||
1710 | struct pending ** | |
1711 | get_local_symbols () | |
1712 | { | |
1713 | gdb_assert (buildsym_compunit != nullptr); | |
1714 | return &buildsym_compunit->m_local_symbols; | |
1715 | } | |
1716 | ||
1717 | /* See buildsym.h. */ | |
1718 | ||
1719 | struct pending ** | |
1720 | get_file_symbols () | |
1721 | { | |
1722 | gdb_assert (buildsym_compunit != nullptr); | |
1723 | return &buildsym_compunit->m_file_symbols; | |
1724 | } | |
1725 | ||
1726 | /* See buildsym.h. */ | |
1727 | ||
1728 | struct pending ** | |
1729 | get_global_symbols () | |
1730 | { | |
1731 | gdb_assert (buildsym_compunit != nullptr); | |
1732 | return &buildsym_compunit->m_global_symbols; | |
1733 | } |