Commit | Line | Data |
---|---|---|
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" | |
b80a981d | 65 | #include "buildsym.h" |
c906108c | 66 | #include "bfd.h" |
04ea0df1 | 67 | #include "gdb_obstack.h" |
c906108c | 68 | #include "symtab.h" |
72367fb4 | 69 | #include "symfile.h" |
c906108c SS |
70 | #include "objfiles.h" |
71 | #include "gdbtypes.h" | |
72 | #include "complaints.h" | |
4a64f543 | 73 | #include "expression.h" /* For "enum exp_opcode" used by... */ |
4a64f543 | 74 | #include "filenames.h" /* For DOSish file names. */ |
99d9066e | 75 | #include "macrotab.h" |
261397f8 | 76 | #include "demangle.h" /* Needed by SYMBOL_INIT_DEMANGLED_NAME. */ |
fe898f56 | 77 | #include "block.h" |
9219021c | 78 | #include "cp-support.h" |
de4f826b | 79 | #include "dictionary.h" |
801e3a5b | 80 | #include "addrmap.h" |
b05628f0 | 81 | #include <algorithm> |
9219021c | 82 | |
0a0edcd5 | 83 | /* For cleanup_undefined_stabs_types and finish_global_stabs (somewhat |
c906108c SS |
84 | questionable--see comment where we call them). */ |
85 | ||
86 | #include "stabsread.h" | |
87 | ||
ddb70602 | 88 | /* Buildsym's counterpart to struct compunit_symtab. */ |
4d663531 | 89 | |
43f3e411 DE |
90 | struct buildsym_compunit |
91 | { | |
b248663f TT |
92 | /* Start recording information about a primary source file (IOW, not an |
93 | included source file). | |
94 | COMP_DIR is the directory in which the compilation unit was compiled | |
95 | (or NULL if not known). */ | |
96 | ||
c0015d44 | 97 | buildsym_compunit (struct objfile *objfile_, const char *name, |
2c99ee5c TT |
98 | const char *comp_dir_, enum language language_, |
99 | CORE_ADDR last_addr) | |
b248663f | 100 | : objfile (objfile_), |
c0015d44 | 101 | m_last_source_file (name == nullptr ? nullptr : xstrdup (name)), |
b248663f | 102 | comp_dir (comp_dir_ == nullptr ? nullptr : xstrdup (comp_dir_)), |
2c99ee5c TT |
103 | language (language_), |
104 | m_last_source_start_addr (last_addr) | |
4a2125f5 TT |
105 | { |
106 | /* Allocate the compunit symtab now. The caller needs it to allocate | |
107 | non-primary symtabs. It is also needed by get_macro_table. */ | |
108 | compunit_symtab = allocate_compunit_symtab (objfile, name); | |
109 | ||
110 | /* Build the subfile for NAME (the main source file) so that we can record | |
111 | a pointer to it for later. | |
112 | IMPORTANT: Do not allocate a struct symtab for NAME here. | |
113 | It can happen that the debug info provides a different path to NAME than | |
114 | DIRNAME,NAME. We cope with this in watch_main_source_file_lossage but | |
115 | that only works if the main_subfile doesn't have a symtab yet. */ | |
116 | start_subfile (name); | |
117 | /* Save this so that we don't have to go looking for it at the end | |
118 | of the subfiles list. */ | |
119 | main_subfile = m_current_subfile; | |
120 | } | |
121 | ||
122 | /* Reopen an existing compunit_symtab so that additional symbols can | |
123 | be added to it. Arguments are as for the main constructor. CUST | |
124 | is the expandable compunit_symtab to be reopened. */ | |
125 | ||
126 | buildsym_compunit (struct objfile *objfile_, const char *name, | |
127 | const char *comp_dir_, enum language language_, | |
128 | CORE_ADDR last_addr, struct compunit_symtab *cust) | |
129 | : objfile (objfile_), | |
130 | m_last_source_file (name == nullptr ? nullptr : xstrdup (name)), | |
131 | comp_dir (comp_dir_ == nullptr ? nullptr : xstrdup (comp_dir_)), | |
132 | compunit_symtab (cust), | |
133 | language (language_), | |
134 | m_last_source_start_addr (last_addr) | |
b248663f TT |
135 | { |
136 | } | |
137 | ||
138 | ~buildsym_compunit () | |
139 | { | |
140 | struct subfile *subfile, *nextsub; | |
141 | ||
6a976300 TT |
142 | if (m_pending_macros != nullptr) |
143 | free_macro_table (m_pending_macros); | |
144 | ||
b248663f TT |
145 | for (subfile = subfiles; |
146 | subfile != NULL; | |
147 | subfile = nextsub) | |
148 | { | |
149 | nextsub = subfile->next; | |
150 | xfree (subfile->name); | |
151 | xfree (subfile->line_vector); | |
152 | xfree (subfile); | |
153 | } | |
e148f09d TT |
154 | |
155 | struct pending *next, *next1; | |
156 | ||
157 | for (next = m_file_symbols; next != NULL; next = next1) | |
158 | { | |
159 | next1 = next->next; | |
160 | xfree ((void *) next); | |
161 | } | |
162 | ||
163 | for (next = m_global_symbols; next != NULL; next = next1) | |
164 | { | |
165 | next1 = next->next; | |
166 | xfree ((void *) next); | |
167 | } | |
b248663f TT |
168 | } |
169 | ||
c0015d44 TT |
170 | void set_last_source_file (const char *name) |
171 | { | |
172 | char *new_name = name == NULL ? NULL : xstrdup (name); | |
173 | m_last_source_file.reset (new_name); | |
174 | } | |
175 | ||
4a2125f5 TT |
176 | const char *get_last_source_file () |
177 | { | |
178 | return m_last_source_file.get (); | |
179 | } | |
180 | ||
6a976300 TT |
181 | struct macro_table *get_macro_table () |
182 | { | |
183 | if (m_pending_macros == nullptr) | |
184 | m_pending_macros = new_macro_table (&objfile->per_bfd->storage_obstack, | |
185 | objfile->per_bfd->macro_cache, | |
186 | compunit_symtab); | |
187 | return m_pending_macros; | |
188 | } | |
189 | ||
190 | struct macro_table *release_macros () | |
191 | { | |
192 | struct macro_table *result = m_pending_macros; | |
193 | m_pending_macros = nullptr; | |
194 | return result; | |
195 | } | |
196 | ||
5ac04550 TT |
197 | /* This function is called to discard any pending blocks. */ |
198 | ||
199 | void free_pending_blocks () | |
200 | { | |
201 | m_pending_block_obstack.clear (); | |
202 | m_pending_blocks = nullptr; | |
203 | } | |
204 | ||
4a2125f5 TT |
205 | struct block *finish_block (struct symbol *symbol, |
206 | struct pending_block *old_blocks, | |
207 | const struct dynamic_prop *static_link, | |
208 | CORE_ADDR start, CORE_ADDR end); | |
209 | ||
210 | void record_block_range (struct block *block, | |
211 | CORE_ADDR start, CORE_ADDR end_inclusive); | |
212 | ||
213 | void start_subfile (const char *name); | |
214 | ||
215 | void patch_subfile_names (struct subfile *subfile, const char *name); | |
216 | ||
217 | void push_subfile (); | |
218 | ||
219 | const char *pop_subfile (); | |
220 | ||
221 | void record_line (struct subfile *subfile, int line, CORE_ADDR pc); | |
222 | ||
223 | struct compunit_symtab *get_compunit_symtab () | |
224 | { | |
225 | return compunit_symtab; | |
226 | } | |
227 | ||
228 | void set_last_source_start_addr (CORE_ADDR addr) | |
229 | { | |
230 | m_last_source_start_addr = addr; | |
231 | } | |
232 | ||
233 | CORE_ADDR get_last_source_start_addr () | |
234 | { | |
235 | return m_last_source_start_addr; | |
236 | } | |
237 | ||
238 | struct using_direct **get_local_using_directives () | |
239 | { | |
240 | return &m_local_using_directives; | |
241 | } | |
242 | ||
243 | void set_local_using_directives (struct using_direct *new_local) | |
244 | { | |
245 | m_local_using_directives = new_local; | |
246 | } | |
247 | ||
248 | struct using_direct **get_global_using_directives () | |
249 | { | |
250 | return &m_global_using_directives; | |
251 | } | |
252 | ||
253 | bool outermost_context_p () const | |
254 | { | |
255 | return m_context_stack.empty (); | |
256 | } | |
257 | ||
258 | struct context_stack *get_current_context_stack () | |
259 | { | |
260 | if (m_context_stack.empty ()) | |
261 | return nullptr; | |
262 | return &m_context_stack.back (); | |
263 | } | |
264 | ||
265 | int get_context_stack_depth () const | |
266 | { | |
267 | return m_context_stack.size (); | |
268 | } | |
269 | ||
270 | struct subfile *get_current_subfile () | |
271 | { | |
272 | return m_current_subfile; | |
273 | } | |
274 | ||
275 | struct pending **get_local_symbols () | |
276 | { | |
277 | return &m_local_symbols; | |
278 | } | |
279 | ||
280 | struct pending **get_file_symbols () | |
281 | { | |
282 | return &m_file_symbols; | |
283 | } | |
284 | ||
285 | struct pending **get_global_symbols () | |
286 | { | |
287 | return &m_global_symbols; | |
288 | } | |
289 | ||
290 | void record_debugformat (const char *format) | |
291 | { | |
292 | debugformat = format; | |
293 | } | |
294 | ||
295 | void record_producer (const char *producer) | |
296 | { | |
297 | this->producer = producer; | |
298 | } | |
299 | ||
300 | struct context_stack *push_context (int desc, CORE_ADDR valu); | |
301 | ||
302 | struct context_stack pop_context (); | |
303 | ||
304 | struct block *end_symtab_get_static_block (CORE_ADDR end_addr, | |
305 | int expandable, int required); | |
306 | ||
307 | struct compunit_symtab *end_symtab_from_static_block | |
308 | (struct block *static_block, int section, int expandable); | |
309 | ||
310 | struct compunit_symtab *end_symtab (CORE_ADDR end_addr, int section); | |
311 | ||
312 | struct compunit_symtab *end_expandable_symtab (CORE_ADDR end_addr, | |
313 | int section); | |
314 | ||
315 | void augment_type_symtab (); | |
316 | ||
317 | private: | |
318 | ||
319 | void record_pending_block (struct block *block, struct pending_block *opblock); | |
320 | ||
321 | struct block *finish_block_internal (struct symbol *symbol, | |
322 | struct pending **listhead, | |
323 | struct pending_block *old_blocks, | |
324 | const struct dynamic_prop *static_link, | |
325 | CORE_ADDR start, CORE_ADDR end, | |
326 | int is_global, int expandable); | |
327 | ||
328 | struct blockvector *make_blockvector (); | |
329 | ||
330 | void watch_main_source_file_lossage (); | |
331 | ||
332 | struct compunit_symtab *end_symtab_with_blockvector | |
333 | (struct block *static_block, int section, int expandable); | |
334 | ||
43f3e411 DE |
335 | /* The objfile we're reading debug info from. */ |
336 | struct objfile *objfile; | |
337 | ||
338 | /* List of subfiles (source files). | |
339 | Files are added to the front of the list. | |
340 | This is important mostly for the language determination hacks we use, | |
341 | which iterate over previously added files. */ | |
b248663f | 342 | struct subfile *subfiles = nullptr; |
43f3e411 DE |
343 | |
344 | /* The subfile of the main source file. */ | |
b248663f | 345 | struct subfile *main_subfile = nullptr; |
4d663531 | 346 | |
c0015d44 TT |
347 | /* Name of source file whose symbol data we are now processing. This |
348 | comes from a symbol of type N_SO for stabs. For DWARF it comes | |
349 | from the DW_AT_name attribute of a DW_TAG_compile_unit DIE. */ | |
350 | gdb::unique_xmalloc_ptr<char> m_last_source_file; | |
351 | ||
43f3e411 | 352 | /* E.g., DW_AT_comp_dir if DWARF. Space for this is malloc'd. */ |
905eb0e2 | 353 | gdb::unique_xmalloc_ptr<char> comp_dir; |
4d663531 | 354 | |
43f3e411 DE |
355 | /* Space for this is not malloc'd, and is assumed to have at least |
356 | the same lifetime as objfile. */ | |
b248663f | 357 | const char *producer = nullptr; |
4d663531 | 358 | |
43f3e411 DE |
359 | /* Space for this is not malloc'd, and is assumed to have at least |
360 | the same lifetime as objfile. */ | |
b248663f | 361 | const char *debugformat = nullptr; |
94d09e04 | 362 | |
43f3e411 | 363 | /* The compunit we are building. */ |
b248663f | 364 | struct compunit_symtab *compunit_symtab = nullptr; |
5ffa0793 PA |
365 | |
366 | /* Language of this compunit_symtab. */ | |
367 | enum language language; | |
6a976300 TT |
368 | |
369 | /* The macro table for the compilation unit whose symbols we're | |
370 | currently reading. */ | |
371 | struct macro_table *m_pending_macros = nullptr; | |
530fedbc TT |
372 | |
373 | /* True if symtab has line number info. This prevents an otherwise | |
374 | empty symtab from being tossed. */ | |
375 | bool m_have_line_numbers = false; | |
2c99ee5c TT |
376 | |
377 | /* Core address of start of text of current source file. This too | |
378 | comes from the N_SO symbol. For Dwarf it typically comes from the | |
379 | DW_AT_low_pc attribute of a DW_TAG_compile_unit DIE. */ | |
380 | CORE_ADDR m_last_source_start_addr; | |
8419ee53 TT |
381 | |
382 | /* Stack of subfile names. */ | |
383 | std::vector<const char *> m_subfile_stack; | |
6cccc9a8 TT |
384 | |
385 | /* The "using" directives local to lexical context. */ | |
386 | struct using_direct *m_local_using_directives = nullptr; | |
387 | ||
388 | /* Global "using" directives. */ | |
389 | struct using_direct *m_global_using_directives = nullptr; | |
a60f3166 TT |
390 | |
391 | /* The stack of contexts that are pushed by push_context and popped | |
392 | by pop_context. */ | |
393 | std::vector<struct context_stack> m_context_stack; | |
3c65e5b3 TT |
394 | |
395 | struct subfile *m_current_subfile = nullptr; | |
7ea05a7b TT |
396 | |
397 | /* The mutable address map for the compilation unit whose symbols | |
398 | we're currently reading. The symtabs' shared blockvector will | |
399 | point to a fixed copy of this. */ | |
400 | struct addrmap *m_pending_addrmap = nullptr; | |
401 | ||
402 | /* The obstack on which we allocate pending_addrmap. | |
403 | If pending_addrmap is NULL, this is uninitialized; otherwise, it is | |
404 | initialized (and holds pending_addrmap). */ | |
405 | auto_obstack m_pending_addrmap_obstack; | |
406 | ||
407 | /* True if we recorded any ranges in the addrmap that are different | |
408 | from those in the blockvector already. We set this to false when | |
409 | we start processing a symfile, and if it's still false at the | |
410 | end, then we just toss the addrmap. */ | |
411 | bool m_pending_addrmap_interesting = false; | |
5ac04550 TT |
412 | |
413 | /* An obstack used for allocating pending blocks. */ | |
414 | auto_obstack m_pending_block_obstack; | |
415 | ||
416 | /* Pointer to the head of a linked list of symbol blocks which have | |
417 | already been finalized (lexical contexts already closed) and which | |
418 | are just waiting to be built into a blockvector when finalizing the | |
419 | associated symtab. */ | |
420 | struct pending_block *m_pending_blocks = nullptr; | |
e148f09d TT |
421 | |
422 | /* Pending static symbols and types at the top level. */ | |
423 | struct pending *m_file_symbols = nullptr; | |
424 | ||
425 | /* Pending global functions and variables. */ | |
426 | struct pending *m_global_symbols = nullptr; | |
427 | ||
428 | /* Pending symbols that are local to the lexical context. */ | |
429 | struct pending *m_local_symbols = nullptr; | |
43f3e411 | 430 | }; |
94d09e04 | 431 | |
43f3e411 DE |
432 | /* The work-in-progress of the compunit we are building. |
433 | This is created first, before any subfiles by start_symtab. */ | |
7bab9b58 | 434 | |
43f3e411 | 435 | static struct buildsym_compunit *buildsym_compunit; |
7bab9b58 | 436 | |
93eed41f TT |
437 | /* List of blocks already made (lexical contexts already closed). |
438 | This is used at the end to make the blockvector. */ | |
439 | ||
440 | struct pending_block | |
441 | { | |
442 | struct pending_block *next; | |
443 | struct block *block; | |
444 | }; | |
445 | ||
0ab9ce85 DE |
446 | static void free_buildsym_compunit (void); |
447 | ||
c906108c | 448 | static int compare_line_numbers (const void *ln1p, const void *ln2p); |
0b49e518 | 449 | |
c906108c SS |
450 | /* Initial sizes of data structures. These are realloc'd larger if |
451 | needed, and realloc'd down to the size actually used, when | |
452 | completed. */ | |
453 | ||
c906108c SS |
454 | #define INITIAL_LINE_VECTOR_LENGTH 1000 |
455 | \f | |
456 | ||
4a64f543 | 457 | /* Maintain the lists of symbols and blocks. */ |
c906108c | 458 | |
93bf33fd | 459 | /* Add a symbol to one of the lists of symbols. */ |
c906108c SS |
460 | |
461 | void | |
462 | add_symbol_to_list (struct symbol *symbol, struct pending **listhead) | |
463 | { | |
52f0bd74 | 464 | struct pending *link; |
c906108c SS |
465 | |
466 | /* If this is an alias for another symbol, don't add it. */ | |
467 | if (symbol->ginfo.name && symbol->ginfo.name[0] == '#') | |
468 | return; | |
469 | ||
4a64f543 | 470 | /* We keep PENDINGSIZE symbols in each link of the list. If we |
c906108c SS |
471 | don't have a link with room in it, add a new link. */ |
472 | if (*listhead == NULL || (*listhead)->nsyms == PENDINGSIZE) | |
473 | { | |
1d376700 | 474 | link = XNEW (struct pending); |
c906108c SS |
475 | link->next = *listhead; |
476 | *listhead = link; | |
477 | link->nsyms = 0; | |
478 | } | |
479 | ||
480 | (*listhead)->symbol[(*listhead)->nsyms++] = symbol; | |
481 | } | |
482 | ||
483 | /* Find a symbol named NAME on a LIST. NAME need not be | |
484 | '\0'-terminated; LENGTH is the length of the name. */ | |
485 | ||
486 | struct symbol * | |
487 | find_symbol_in_list (struct pending *list, char *name, int length) | |
488 | { | |
489 | int j; | |
0d5cff50 | 490 | const char *pp; |
c906108c SS |
491 | |
492 | while (list != NULL) | |
493 | { | |
494 | for (j = list->nsyms; --j >= 0;) | |
495 | { | |
3567439c | 496 | pp = SYMBOL_LINKAGE_NAME (list->symbol[j]); |
5aafa1cc PM |
497 | if (*pp == *name && strncmp (pp, name, length) == 0 |
498 | && pp[length] == '\0') | |
c906108c SS |
499 | { |
500 | return (list->symbol[j]); | |
501 | } | |
502 | } | |
503 | list = list->next; | |
504 | } | |
505 | return (NULL); | |
506 | } | |
507 | ||
33c7c59d TT |
508 | /* At end of reading syms, or in case of quit, ensure everything |
509 | associated with building symtabs is freed. | |
0ab9ce85 DE |
510 | |
511 | N.B. This is *not* intended to be used when building psymtabs. Some debug | |
512 | info readers call this anyway, which is harmless if confusing. */ | |
c906108c | 513 | |
33c7c59d | 514 | scoped_free_pendings::~scoped_free_pendings () |
c906108c | 515 | { |
0ab9ce85 | 516 | free_buildsym_compunit (); |
c906108c SS |
517 | } |
518 | ||
6b213a47 TT |
519 | /* Record BLOCK on the list of all blocks in the file. Put it after |
520 | OPBLOCK, or at the beginning if opblock is NULL. This puts the | |
521 | block in the list after all its subblocks. */ | |
522 | ||
4a2125f5 TT |
523 | void |
524 | buildsym_compunit::record_pending_block (struct block *block, | |
525 | struct pending_block *opblock) | |
6b213a47 TT |
526 | { |
527 | struct pending_block *pblock; | |
528 | ||
4a2125f5 | 529 | pblock = XOBNEW (&m_pending_block_obstack, struct pending_block); |
6b213a47 TT |
530 | pblock->block = block; |
531 | if (opblock) | |
532 | { | |
533 | pblock->next = opblock->next; | |
534 | opblock->next = pblock; | |
535 | } | |
536 | else | |
537 | { | |
4a2125f5 TT |
538 | pblock->next = m_pending_blocks; |
539 | m_pending_blocks = pblock; | |
6b213a47 TT |
540 | } |
541 | } | |
542 | ||
c906108c SS |
543 | /* Take one of the lists of symbols and make a block from it. Keep |
544 | the order the symbols have in the list (reversed from the input | |
545 | file). Put the block on the list of pending blocks. */ | |
546 | ||
4a2125f5 TT |
547 | struct block * |
548 | buildsym_compunit::finish_block_internal | |
549 | (struct symbol *symbol, | |
550 | struct pending **listhead, | |
551 | struct pending_block *old_blocks, | |
552 | const struct dynamic_prop *static_link, | |
553 | CORE_ADDR start, CORE_ADDR end, | |
554 | int is_global, int expandable) | |
c906108c | 555 | { |
5af949e3 | 556 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
52f0bd74 AC |
557 | struct pending *next, *next1; |
558 | struct block *block; | |
559 | struct pending_block *pblock; | |
c906108c | 560 | struct pending_block *opblock; |
c906108c | 561 | |
84a146c9 TT |
562 | block = (is_global |
563 | ? allocate_global_block (&objfile->objfile_obstack) | |
564 | : allocate_block (&objfile->objfile_obstack)); | |
c906108c | 565 | |
261397f8 DJ |
566 | if (symbol) |
567 | { | |
5ffa0793 PA |
568 | BLOCK_DICT (block) |
569 | = dict_create_linear (&objfile->objfile_obstack, | |
4a2125f5 | 570 | language, *listhead); |
261397f8 DJ |
571 | } |
572 | else | |
c906108c | 573 | { |
6d30eef8 DE |
574 | if (expandable) |
575 | { | |
4a2125f5 | 576 | BLOCK_DICT (block) = dict_create_hashed_expandable (language); |
6d30eef8 DE |
577 | dict_add_pending (BLOCK_DICT (block), *listhead); |
578 | } | |
579 | else | |
580 | { | |
581 | BLOCK_DICT (block) = | |
5ffa0793 | 582 | dict_create_hashed (&objfile->objfile_obstack, |
4a2125f5 | 583 | language, *listhead); |
6d30eef8 | 584 | } |
c906108c SS |
585 | } |
586 | ||
587 | BLOCK_START (block) = start; | |
588 | BLOCK_END (block) = end; | |
c906108c | 589 | |
c906108c SS |
590 | /* Put the block in as the value of the symbol that names it. */ |
591 | ||
592 | if (symbol) | |
593 | { | |
594 | struct type *ftype = SYMBOL_TYPE (symbol); | |
de4f826b | 595 | struct dict_iterator iter; |
c906108c SS |
596 | SYMBOL_BLOCK_VALUE (symbol) = block; |
597 | BLOCK_FUNCTION (block) = symbol; | |
598 | ||
599 | if (TYPE_NFIELDS (ftype) <= 0) | |
600 | { | |
601 | /* No parameter type information is recorded with the | |
602 | function's type. Set that from the type of the | |
4a64f543 | 603 | parameter symbols. */ |
c906108c SS |
604 | int nparams = 0, iparams; |
605 | struct symbol *sym; | |
8157b174 TT |
606 | |
607 | /* Here we want to directly access the dictionary, because | |
608 | we haven't fully initialized the block yet. */ | |
609 | ALL_DICT_SYMBOLS (BLOCK_DICT (block), iter, sym) | |
c906108c | 610 | { |
2a2d4dc3 AS |
611 | if (SYMBOL_IS_ARGUMENT (sym)) |
612 | nparams++; | |
c906108c SS |
613 | } |
614 | if (nparams > 0) | |
615 | { | |
616 | TYPE_NFIELDS (ftype) = nparams; | |
617 | TYPE_FIELDS (ftype) = (struct field *) | |
618 | TYPE_ALLOC (ftype, nparams * sizeof (struct field)); | |
619 | ||
de4f826b | 620 | iparams = 0; |
8157b174 TT |
621 | /* Here we want to directly access the dictionary, because |
622 | we haven't fully initialized the block yet. */ | |
623 | ALL_DICT_SYMBOLS (BLOCK_DICT (block), iter, sym) | |
c906108c | 624 | { |
de4f826b DC |
625 | if (iparams == nparams) |
626 | break; | |
627 | ||
2a2d4dc3 | 628 | if (SYMBOL_IS_ARGUMENT (sym)) |
c906108c | 629 | { |
c906108c | 630 | TYPE_FIELD_TYPE (ftype, iparams) = SYMBOL_TYPE (sym); |
8176bb6d | 631 | TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0; |
c906108c | 632 | iparams++; |
c906108c SS |
633 | } |
634 | } | |
635 | } | |
636 | } | |
637 | } | |
638 | else | |
639 | { | |
640 | BLOCK_FUNCTION (block) = NULL; | |
641 | } | |
642 | ||
63e43d3a PMR |
643 | if (static_link != NULL) |
644 | objfile_register_static_link (objfile, block, static_link); | |
645 | ||
1d376700 | 646 | /* Now free the links of the list, and empty the list. */ |
c906108c SS |
647 | |
648 | for (next = *listhead; next; next = next1) | |
649 | { | |
650 | next1 = next->next; | |
1d376700 | 651 | xfree (next); |
c906108c SS |
652 | } |
653 | *listhead = NULL; | |
654 | ||
c906108c | 655 | /* Check to be sure that the blocks have an end address that is |
4a64f543 | 656 | greater than starting address. */ |
c906108c SS |
657 | |
658 | if (BLOCK_END (block) < BLOCK_START (block)) | |
659 | { | |
660 | if (symbol) | |
661 | { | |
b98664d3 | 662 | complaint (_("block end address less than block " |
3e43a32a | 663 | "start address in %s (patched it)"), |
de5ad195 | 664 | SYMBOL_PRINT_NAME (symbol)); |
c906108c SS |
665 | } |
666 | else | |
667 | { | |
b98664d3 | 668 | complaint (_("block end address %s less than block " |
3e43a32a | 669 | "start address %s (patched it)"), |
5af949e3 UW |
670 | paddress (gdbarch, BLOCK_END (block)), |
671 | paddress (gdbarch, BLOCK_START (block))); | |
c906108c | 672 | } |
4a64f543 | 673 | /* Better than nothing. */ |
c906108c SS |
674 | BLOCK_END (block) = BLOCK_START (block); |
675 | } | |
c906108c SS |
676 | |
677 | /* Install this block as the superblock of all blocks made since the | |
678 | start of this scope that don't have superblocks yet. */ | |
679 | ||
680 | opblock = NULL; | |
4a2125f5 | 681 | for (pblock = m_pending_blocks; |
c0219d42 MS |
682 | pblock && pblock != old_blocks; |
683 | pblock = pblock->next) | |
c906108c SS |
684 | { |
685 | if (BLOCK_SUPERBLOCK (pblock->block) == NULL) | |
686 | { | |
c906108c | 687 | /* Check to be sure the blocks are nested as we receive |
4a64f543 | 688 | them. If the compiler/assembler/linker work, this just |
14711c82 DJ |
689 | burns a small amount of time. |
690 | ||
691 | Skip blocks which correspond to a function; they're not | |
692 | physically nested inside this other blocks, only | |
693 | lexically nested. */ | |
694 | if (BLOCK_FUNCTION (pblock->block) == NULL | |
695 | && (BLOCK_START (pblock->block) < BLOCK_START (block) | |
696 | || BLOCK_END (pblock->block) > BLOCK_END (block))) | |
c906108c SS |
697 | { |
698 | if (symbol) | |
699 | { | |
b98664d3 | 700 | complaint (_("inner block not inside outer block in %s"), |
de5ad195 | 701 | SYMBOL_PRINT_NAME (symbol)); |
c906108c SS |
702 | } |
703 | else | |
704 | { | |
b98664d3 | 705 | complaint (_("inner block (%s-%s) not " |
3e43a32a | 706 | "inside outer block (%s-%s)"), |
5af949e3 UW |
707 | paddress (gdbarch, BLOCK_START (pblock->block)), |
708 | paddress (gdbarch, BLOCK_END (pblock->block)), | |
709 | paddress (gdbarch, BLOCK_START (block)), | |
710 | paddress (gdbarch, BLOCK_END (block))); | |
c906108c SS |
711 | } |
712 | if (BLOCK_START (pblock->block) < BLOCK_START (block)) | |
713 | BLOCK_START (pblock->block) = BLOCK_START (block); | |
714 | if (BLOCK_END (pblock->block) > BLOCK_END (block)) | |
715 | BLOCK_END (pblock->block) = BLOCK_END (block); | |
716 | } | |
c906108c SS |
717 | BLOCK_SUPERBLOCK (pblock->block) = block; |
718 | } | |
719 | opblock = pblock; | |
720 | } | |
721 | ||
22cee43f PMR |
722 | block_set_using (block, |
723 | (is_global | |
4a2125f5 TT |
724 | ? m_global_using_directives |
725 | : m_local_using_directives), | |
22cee43f PMR |
726 | &objfile->objfile_obstack); |
727 | if (is_global) | |
4a2125f5 | 728 | m_global_using_directives = NULL; |
22cee43f | 729 | else |
4a2125f5 | 730 | m_local_using_directives = NULL; |
27aa8d6a | 731 | |
6b213a47 | 732 | record_pending_block (block, opblock); |
801e3a5b JB |
733 | |
734 | return block; | |
c906108c SS |
735 | } |
736 | ||
84a146c9 | 737 | struct block * |
4a2125f5 TT |
738 | buildsym_compunit::finish_block (struct symbol *symbol, |
739 | struct pending_block *old_blocks, | |
740 | const struct dynamic_prop *static_link, | |
741 | CORE_ADDR start, CORE_ADDR end) | |
84a146c9 | 742 | { |
4a2125f5 TT |
743 | return finish_block_internal (symbol, &m_local_symbols, |
744 | old_blocks, static_link, start, end, 0, 0); | |
84a146c9 | 745 | } |
de4f826b | 746 | |
801e3a5b JB |
747 | /* Record that the range of addresses from START to END_INCLUSIVE |
748 | (inclusive, like it says) belongs to BLOCK. BLOCK's start and end | |
749 | addresses must be set already. You must apply this function to all | |
750 | BLOCK's children before applying it to BLOCK. | |
751 | ||
752 | If a call to this function complicates the picture beyond that | |
753 | already provided by BLOCK_START and BLOCK_END, then we create an | |
754 | address map for the block. */ | |
755 | void | |
4a2125f5 TT |
756 | buildsym_compunit::record_block_range (struct block *block, |
757 | CORE_ADDR start, | |
758 | CORE_ADDR end_inclusive) | |
801e3a5b JB |
759 | { |
760 | /* If this is any different from the range recorded in the block's | |
761 | own BLOCK_START and BLOCK_END, then note that the address map has | |
762 | become interesting. Note that even if this block doesn't have | |
763 | any "interesting" ranges, some later block might, so we still | |
764 | need to record this block in the addrmap. */ | |
765 | if (start != BLOCK_START (block) | |
766 | || end_inclusive + 1 != BLOCK_END (block)) | |
4a2125f5 | 767 | m_pending_addrmap_interesting = true; |
801e3a5b | 768 | |
4a2125f5 TT |
769 | if (m_pending_addrmap == nullptr) |
770 | m_pending_addrmap = addrmap_create_mutable (&m_pending_addrmap_obstack); | |
801e3a5b | 771 | |
4a2125f5 | 772 | addrmap_set_empty (m_pending_addrmap, start, end_inclusive, block); |
801e3a5b JB |
773 | } |
774 | ||
4a2125f5 TT |
775 | struct blockvector * |
776 | buildsym_compunit::make_blockvector () | |
c906108c | 777 | { |
52f0bd74 AC |
778 | struct pending_block *next; |
779 | struct blockvector *blockvector; | |
780 | int i; | |
c906108c SS |
781 | |
782 | /* Count the length of the list of blocks. */ | |
783 | ||
4a2125f5 | 784 | for (next = m_pending_blocks, i = 0; next; next = next->next, i++) |
5ac04550 | 785 | { |
c906108c SS |
786 | } |
787 | ||
788 | blockvector = (struct blockvector *) | |
4a146b47 | 789 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
790 | (sizeof (struct blockvector) |
791 | + (i - 1) * sizeof (struct block *))); | |
792 | ||
4a64f543 | 793 | /* Copy the blocks into the blockvector. This is done in reverse |
c906108c | 794 | order, which happens to put the blocks into the proper order |
4a64f543 | 795 | (ascending starting address). finish_block has hair to insert |
c906108c SS |
796 | each block into the list after its subblocks in order to make |
797 | sure this is true. */ | |
798 | ||
799 | BLOCKVECTOR_NBLOCKS (blockvector) = i; | |
4a2125f5 | 800 | for (next = m_pending_blocks; next; next = next->next) |
c906108c SS |
801 | { |
802 | BLOCKVECTOR_BLOCK (blockvector, --i) = next->block; | |
803 | } | |
804 | ||
4a2125f5 | 805 | free_pending_blocks (); |
c906108c | 806 | |
801e3a5b JB |
807 | /* If we needed an address map for this symtab, record it in the |
808 | blockvector. */ | |
4a2125f5 | 809 | if (m_pending_addrmap != nullptr && m_pending_addrmap_interesting) |
801e3a5b | 810 | BLOCKVECTOR_MAP (blockvector) |
4a2125f5 | 811 | = addrmap_create_fixed (m_pending_addrmap, &objfile->objfile_obstack); |
801e3a5b JB |
812 | else |
813 | BLOCKVECTOR_MAP (blockvector) = 0; | |
4aad0dfc | 814 | |
c906108c | 815 | /* Some compilers output blocks in the wrong order, but we depend on |
4a64f543 | 816 | their being in the right order so we can binary search. Check the |
4aad0dfc DE |
817 | order and moan about it. |
818 | Note: Remember that the first two blocks are the global and static | |
819 | blocks. We could special case that fact and begin checking at block 2. | |
820 | To avoid making that assumption we do not. */ | |
c906108c SS |
821 | if (BLOCKVECTOR_NBLOCKS (blockvector) > 1) |
822 | { | |
823 | for (i = 1; i < BLOCKVECTOR_NBLOCKS (blockvector); i++) | |
824 | { | |
825 | if (BLOCK_START (BLOCKVECTOR_BLOCK (blockvector, i - 1)) | |
826 | > BLOCK_START (BLOCKVECTOR_BLOCK (blockvector, i))) | |
827 | { | |
59527da0 JB |
828 | CORE_ADDR start |
829 | = BLOCK_START (BLOCKVECTOR_BLOCK (blockvector, i)); | |
c906108c | 830 | |
b98664d3 | 831 | complaint (_("block at %s out of order"), |
bb599908 | 832 | hex_string ((LONGEST) start)); |
c906108c SS |
833 | } |
834 | } | |
835 | } | |
c906108c SS |
836 | |
837 | return (blockvector); | |
838 | } | |
839 | \f | |
840 | /* Start recording information about source code that came from an | |
841 | included (or otherwise merged-in) source file with a different | |
4d663531 | 842 | name. NAME is the name of the file (cannot be NULL). */ |
c906108c SS |
843 | |
844 | void | |
4a2125f5 | 845 | buildsym_compunit::start_subfile (const char *name) |
c906108c | 846 | { |
43f3e411 | 847 | const char *subfile_dirname; |
52f0bd74 | 848 | struct subfile *subfile; |
c906108c | 849 | |
4a2125f5 | 850 | subfile_dirname = comp_dir.get (); |
c906108c | 851 | |
43f3e411 DE |
852 | /* See if this subfile is already registered. */ |
853 | ||
4a2125f5 | 854 | for (subfile = subfiles; subfile; subfile = subfile->next) |
c906108c | 855 | { |
84ba0adf DJ |
856 | char *subfile_name; |
857 | ||
858 | /* If NAME is an absolute path, and this subfile is not, then | |
859 | attempt to create an absolute path to compare. */ | |
860 | if (IS_ABSOLUTE_PATH (name) | |
861 | && !IS_ABSOLUTE_PATH (subfile->name) | |
43f3e411 DE |
862 | && subfile_dirname != NULL) |
863 | subfile_name = concat (subfile_dirname, SLASH_STRING, | |
6eb7ee03 | 864 | subfile->name, (char *) NULL); |
84ba0adf DJ |
865 | else |
866 | subfile_name = subfile->name; | |
867 | ||
868 | if (FILENAME_CMP (subfile_name, name) == 0) | |
c906108c | 869 | { |
4a2125f5 | 870 | m_current_subfile = subfile; |
84ba0adf DJ |
871 | if (subfile_name != subfile->name) |
872 | xfree (subfile_name); | |
c906108c SS |
873 | return; |
874 | } | |
84ba0adf DJ |
875 | if (subfile_name != subfile->name) |
876 | xfree (subfile_name); | |
c906108c SS |
877 | } |
878 | ||
43f3e411 | 879 | /* This subfile is not known. Add an entry for it. */ |
c906108c | 880 | |
8d749320 | 881 | subfile = XNEW (struct subfile); |
43f3e411 | 882 | memset (subfile, 0, sizeof (struct subfile)); |
4a2125f5 | 883 | subfile->buildsym_compunit = this; |
43f3e411 | 884 | |
4a2125f5 TT |
885 | subfile->next = subfiles; |
886 | subfiles = subfile; | |
43f3e411 | 887 | |
4a2125f5 | 888 | m_current_subfile = subfile; |
c906108c | 889 | |
b74db436 | 890 | subfile->name = xstrdup (name); |
c906108c SS |
891 | |
892 | /* Initialize line-number recording for this subfile. */ | |
893 | subfile->line_vector = NULL; | |
894 | ||
895 | /* Default the source language to whatever can be deduced from the | |
896 | filename. If nothing can be deduced (such as for a C/C++ include | |
897 | file with a ".h" extension), then inherit whatever language the | |
898 | previous subfile had. This kludgery is necessary because there | |
899 | is no standard way in some object formats to record the source | |
900 | language. Also, when symtabs are allocated we try to deduce a | |
901 | language then as well, but it is too late for us to use that | |
902 | information while reading symbols, since symtabs aren't allocated | |
903 | until after all the symbols have been processed for a given | |
4a64f543 | 904 | source file. */ |
c906108c SS |
905 | |
906 | subfile->language = deduce_language_from_filename (subfile->name); | |
5aafa1cc PM |
907 | if (subfile->language == language_unknown |
908 | && subfile->next != NULL) | |
c906108c SS |
909 | { |
910 | subfile->language = subfile->next->language; | |
911 | } | |
912 | ||
25caa7a8 | 913 | /* If the filename of this subfile ends in .C, then change the |
c906108c | 914 | language of any pending subfiles from C to C++. We also accept |
25caa7a8 | 915 | any other C++ suffixes accepted by deduce_language_from_filename. */ |
c906108c SS |
916 | /* Likewise for f2c. */ |
917 | ||
918 | if (subfile->name) | |
919 | { | |
920 | struct subfile *s; | |
921 | enum language sublang = deduce_language_from_filename (subfile->name); | |
922 | ||
923 | if (sublang == language_cplus || sublang == language_fortran) | |
4a2125f5 | 924 | for (s = subfiles; s != NULL; s = s->next) |
c906108c SS |
925 | if (s->language == language_c) |
926 | s->language = sublang; | |
927 | } | |
928 | ||
929 | /* And patch up this file if necessary. */ | |
930 | if (subfile->language == language_c | |
931 | && subfile->next != NULL | |
932 | && (subfile->next->language == language_cplus | |
933 | || subfile->next->language == language_fortran)) | |
934 | { | |
935 | subfile->language = subfile->next->language; | |
936 | } | |
937 | } | |
938 | ||
43f3e411 | 939 | /* Delete the buildsym compunit. */ |
7bab9b58 DE |
940 | |
941 | static void | |
43f3e411 | 942 | free_buildsym_compunit (void) |
7bab9b58 | 943 | { |
43f3e411 DE |
944 | if (buildsym_compunit == NULL) |
945 | return; | |
b248663f | 946 | delete buildsym_compunit; |
43f3e411 | 947 | buildsym_compunit = NULL; |
7bab9b58 DE |
948 | } |
949 | ||
c906108c SS |
950 | /* For stabs readers, the first N_SO symbol is assumed to be the |
951 | source file name, and the subfile struct is initialized using that | |
952 | assumption. If another N_SO symbol is later seen, immediately | |
953 | following the first one, then the first one is assumed to be the | |
954 | directory name and the second one is really the source file name. | |
955 | ||
956 | So we have to patch up the subfile struct by moving the old name | |
957 | value to dirname and remembering the new name. Some sanity | |
958 | checking is performed to ensure that the state of the subfile | |
959 | struct is reasonable and that the old name we are assuming to be a | |
4a64f543 | 960 | directory name actually is (by checking for a trailing '/'). */ |
c906108c SS |
961 | |
962 | void | |
4a2125f5 TT |
963 | buildsym_compunit::patch_subfile_names (struct subfile *subfile, |
964 | const char *name) | |
c906108c | 965 | { |
43f3e411 | 966 | if (subfile != NULL |
4a2125f5 | 967 | && comp_dir == NULL |
43f3e411 | 968 | && subfile->name != NULL |
0ba1096a | 969 | && IS_DIR_SEPARATOR (subfile->name[strlen (subfile->name) - 1])) |
c906108c | 970 | { |
4a2125f5 | 971 | comp_dir.reset (subfile->name); |
1b36a34b | 972 | subfile->name = xstrdup (name); |
46212e0b | 973 | set_last_source_file (name); |
c906108c SS |
974 | |
975 | /* Default the source language to whatever can be deduced from | |
976 | the filename. If nothing can be deduced (such as for a C/C++ | |
977 | include file with a ".h" extension), then inherit whatever | |
978 | language the previous subfile had. This kludgery is | |
979 | necessary because there is no standard way in some object | |
980 | formats to record the source language. Also, when symtabs | |
981 | are allocated we try to deduce a language then as well, but | |
982 | it is too late for us to use that information while reading | |
983 | symbols, since symtabs aren't allocated until after all the | |
4a64f543 | 984 | symbols have been processed for a given source file. */ |
c906108c SS |
985 | |
986 | subfile->language = deduce_language_from_filename (subfile->name); | |
5aafa1cc PM |
987 | if (subfile->language == language_unknown |
988 | && subfile->next != NULL) | |
c906108c SS |
989 | { |
990 | subfile->language = subfile->next->language; | |
991 | } | |
992 | } | |
993 | } | |
994 | \f | |
995 | /* Handle the N_BINCL and N_EINCL symbol types that act like N_SOL for | |
996 | switching source files (different subfiles, as we call them) within | |
997 | one object file, but using a stack rather than in an arbitrary | |
998 | order. */ | |
999 | ||
1000 | void | |
4a2125f5 | 1001 | buildsym_compunit::push_subfile () |
c906108c | 1002 | { |
4a2125f5 TT |
1003 | gdb_assert (m_current_subfile != NULL); |
1004 | gdb_assert (m_current_subfile->name != NULL); | |
1005 | m_subfile_stack.push_back (m_current_subfile->name); | |
c906108c SS |
1006 | } |
1007 | ||
8419ee53 | 1008 | const char * |
4a2125f5 | 1009 | buildsym_compunit::pop_subfile () |
c906108c | 1010 | { |
4a2125f5 TT |
1011 | gdb_assert (!m_subfile_stack.empty ()); |
1012 | const char *name = m_subfile_stack.back (); | |
1013 | m_subfile_stack.pop_back (); | |
8419ee53 | 1014 | return name; |
c906108c SS |
1015 | } |
1016 | \f | |
1017 | /* Add a linetable entry for line number LINE and address PC to the | |
1018 | line vector for SUBFILE. */ | |
1019 | ||
1020 | void | |
4a2125f5 TT |
1021 | buildsym_compunit::record_line (struct subfile *subfile, int line, |
1022 | CORE_ADDR pc) | |
c906108c SS |
1023 | { |
1024 | struct linetable_entry *e; | |
c906108c | 1025 | |
cc59ec59 | 1026 | /* Ignore the dummy line number in libg.o */ |
c906108c SS |
1027 | if (line == 0xffff) |
1028 | { | |
1029 | return; | |
1030 | } | |
1031 | ||
1032 | /* Make sure line vector exists and is big enough. */ | |
1033 | if (!subfile->line_vector) | |
1034 | { | |
1035 | subfile->line_vector_length = INITIAL_LINE_VECTOR_LENGTH; | |
1036 | subfile->line_vector = (struct linetable *) | |
1037 | xmalloc (sizeof (struct linetable) | |
c5aa993b | 1038 | + subfile->line_vector_length * sizeof (struct linetable_entry)); |
c906108c | 1039 | subfile->line_vector->nitems = 0; |
4a2125f5 | 1040 | m_have_line_numbers = true; |
c906108c SS |
1041 | } |
1042 | ||
1043 | if (subfile->line_vector->nitems + 1 >= subfile->line_vector_length) | |
1044 | { | |
1045 | subfile->line_vector_length *= 2; | |
1046 | subfile->line_vector = (struct linetable *) | |
1047 | xrealloc ((char *) subfile->line_vector, | |
1048 | (sizeof (struct linetable) | |
1049 | + (subfile->line_vector_length | |
1050 | * sizeof (struct linetable_entry)))); | |
1051 | } | |
1052 | ||
607ae575 DJ |
1053 | /* Normally, we treat lines as unsorted. But the end of sequence |
1054 | marker is special. We sort line markers at the same PC by line | |
1055 | number, so end of sequence markers (which have line == 0) appear | |
1056 | first. This is right if the marker ends the previous function, | |
1057 | and there is no padding before the next function. But it is | |
1058 | wrong if the previous line was empty and we are now marking a | |
1059 | switch to a different subfile. We must leave the end of sequence | |
1060 | marker at the end of this group of lines, not sort the empty line | |
1061 | to after the marker. The easiest way to accomplish this is to | |
1062 | delete any empty lines from our table, if they are followed by | |
1063 | end of sequence markers. All we lose is the ability to set | |
1064 | breakpoints at some lines which contain no instructions | |
1065 | anyway. */ | |
1066 | if (line == 0 && subfile->line_vector->nitems > 0) | |
1067 | { | |
1068 | e = subfile->line_vector->item + subfile->line_vector->nitems - 1; | |
1069 | while (subfile->line_vector->nitems > 0 && e->pc == pc) | |
1070 | { | |
1071 | e--; | |
1072 | subfile->line_vector->nitems--; | |
1073 | } | |
1074 | } | |
1075 | ||
c906108c SS |
1076 | e = subfile->line_vector->item + subfile->line_vector->nitems++; |
1077 | e->line = line; | |
607ae575 | 1078 | e->pc = pc; |
c906108c SS |
1079 | } |
1080 | ||
1081 | /* Needed in order to sort line tables from IBM xcoff files. Sigh! */ | |
1082 | ||
1083 | static int | |
1084 | compare_line_numbers (const void *ln1p, const void *ln2p) | |
1085 | { | |
1086 | struct linetable_entry *ln1 = (struct linetable_entry *) ln1p; | |
1087 | struct linetable_entry *ln2 = (struct linetable_entry *) ln2p; | |
1088 | ||
1089 | /* Note: this code does not assume that CORE_ADDRs can fit in ints. | |
1090 | Please keep it that way. */ | |
1091 | if (ln1->pc < ln2->pc) | |
1092 | return -1; | |
1093 | ||
1094 | if (ln1->pc > ln2->pc) | |
1095 | return 1; | |
1096 | ||
1097 | /* If pc equal, sort by line. I'm not sure whether this is optimum | |
1098 | behavior (see comment at struct linetable in symtab.h). */ | |
1099 | return ln1->line - ln2->line; | |
1100 | } | |
1101 | \f | |
43f3e411 DE |
1102 | /* See buildsym.h. */ |
1103 | ||
1104 | struct compunit_symtab * | |
1105 | buildsym_compunit_symtab (void) | |
1106 | { | |
1107 | gdb_assert (buildsym_compunit != NULL); | |
1108 | ||
4a2125f5 | 1109 | return buildsym_compunit->get_compunit_symtab (); |
43f3e411 DE |
1110 | } |
1111 | ||
1112 | /* See buildsym.h. */ | |
fc474241 DE |
1113 | |
1114 | struct macro_table * | |
43f3e411 | 1115 | get_macro_table (void) |
fc474241 | 1116 | { |
43f3e411 DE |
1117 | struct objfile *objfile; |
1118 | ||
1119 | gdb_assert (buildsym_compunit != NULL); | |
6a976300 | 1120 | return buildsym_compunit->get_macro_table (); |
fc474241 DE |
1121 | } |
1122 | \f | |
4d663531 | 1123 | /* Start a new symtab for a new source file in OBJFILE. Called, for example, |
c906108c SS |
1124 | when a stabs symbol of type N_SO is seen, or when a DWARF |
1125 | TAG_compile_unit DIE is seen. It indicates the start of data for | |
0b0287a1 DE |
1126 | one original source file. |
1127 | ||
5ffa0793 PA |
1128 | NAME is the name of the file (cannot be NULL). COMP_DIR is the |
1129 | directory in which the file was compiled (or NULL if not known). | |
1130 | START_ADDR is the lowest address of objects in the file (or 0 if | |
1131 | not known). LANGUAGE is the language of the source file, or | |
1132 | language_unknown if not known, in which case it'll be deduced from | |
1133 | the filename. */ | |
c906108c | 1134 | |
43f3e411 | 1135 | struct compunit_symtab * |
4d663531 | 1136 | start_symtab (struct objfile *objfile, const char *name, const char *comp_dir, |
5ffa0793 | 1137 | CORE_ADDR start_addr, enum language language) |
c906108c | 1138 | { |
b37dd3bc TT |
1139 | /* These should have been reset either by successful completion of building |
1140 | a symtab, or by the scoped_free_pendings destructor. */ | |
1141 | gdb_assert (buildsym_compunit == nullptr); | |
43f3e411 | 1142 | |
c0015d44 | 1143 | buildsym_compunit = new struct buildsym_compunit (objfile, name, comp_dir, |
2c99ee5c | 1144 | language, start_addr); |
43f3e411 | 1145 | |
4a2125f5 | 1146 | return buildsym_compunit->get_compunit_symtab (); |
6d30eef8 DE |
1147 | } |
1148 | ||
1149 | /* Restart compilation for a symtab. | |
0ab9ce85 DE |
1150 | CUST is the result of end_expandable_symtab. |
1151 | NAME, START_ADDR are the source file we are resuming with. | |
1152 | ||
6d30eef8 | 1153 | This is used when a symtab is built from multiple sources. |
0ab9ce85 DE |
1154 | The symtab is first built with start_symtab/end_expandable_symtab |
1155 | and then for each additional piece call restart_symtab/augment_*_symtab. | |
1156 | Note: At the moment there is only augment_type_symtab. */ | |
6d30eef8 DE |
1157 | |
1158 | void | |
0ab9ce85 DE |
1159 | restart_symtab (struct compunit_symtab *cust, |
1160 | const char *name, CORE_ADDR start_addr) | |
6d30eef8 | 1161 | { |
b37dd3bc TT |
1162 | /* These should have been reset either by successful completion of building |
1163 | a symtab, or by the scoped_free_pendings destructor. */ | |
1164 | gdb_assert (buildsym_compunit == nullptr); | |
c906108c | 1165 | |
b248663f TT |
1166 | buildsym_compunit |
1167 | = new struct buildsym_compunit (COMPUNIT_OBJFILE (cust), | |
c0015d44 | 1168 | name, |
b248663f | 1169 | COMPUNIT_DIRNAME (cust), |
2c99ee5c | 1170 | compunit_language (cust), |
4a2125f5 TT |
1171 | start_addr, |
1172 | cust); | |
c906108c SS |
1173 | } |
1174 | ||
4a64f543 MS |
1175 | /* Subroutine of end_symtab to simplify it. Look for a subfile that |
1176 | matches the main source file's basename. If there is only one, and | |
1177 | if the main source file doesn't have any symbol or line number | |
1178 | information, then copy this file's symtab and line_vector to the | |
1179 | main source file's subfile and discard the other subfile. This can | |
1180 | happen because of a compiler bug or from the user playing games | |
1181 | with #line or from things like a distributed build system that | |
43f3e411 DE |
1182 | manipulates the debug info. This can also happen from an innocent |
1183 | symlink in the paths, we don't canonicalize paths here. */ | |
4584e32e | 1184 | |
4a2125f5 TT |
1185 | void |
1186 | buildsym_compunit::watch_main_source_file_lossage () | |
4584e32e | 1187 | { |
43f3e411 | 1188 | struct subfile *mainsub, *subfile; |
4584e32e | 1189 | |
43f3e411 | 1190 | /* Get the main source file. */ |
4a2125f5 | 1191 | mainsub = main_subfile; |
43f3e411 | 1192 | |
4a64f543 | 1193 | /* If the main source file doesn't have any line number or symbol |
7bab9b58 | 1194 | info, look for an alias in another subfile. */ |
4584e32e | 1195 | |
43f3e411 DE |
1196 | if (mainsub->line_vector == NULL |
1197 | && mainsub->symtab == NULL) | |
4584e32e | 1198 | { |
43f3e411 | 1199 | const char *mainbase = lbasename (mainsub->name); |
4584e32e DE |
1200 | int nr_matches = 0; |
1201 | struct subfile *prevsub; | |
1202 | struct subfile *mainsub_alias = NULL; | |
1203 | struct subfile *prev_mainsub_alias = NULL; | |
1204 | ||
1205 | prevsub = NULL; | |
4a2125f5 | 1206 | for (subfile = subfiles; |
43f3e411 | 1207 | subfile != NULL; |
4584e32e DE |
1208 | subfile = subfile->next) |
1209 | { | |
43f3e411 DE |
1210 | if (subfile == mainsub) |
1211 | continue; | |
0ba1096a | 1212 | if (filename_cmp (lbasename (subfile->name), mainbase) == 0) |
4584e32e DE |
1213 | { |
1214 | ++nr_matches; | |
1215 | mainsub_alias = subfile; | |
1216 | prev_mainsub_alias = prevsub; | |
1217 | } | |
1218 | prevsub = subfile; | |
1219 | } | |
1220 | ||
1221 | if (nr_matches == 1) | |
1222 | { | |
43f3e411 | 1223 | gdb_assert (mainsub_alias != NULL && mainsub_alias != mainsub); |
4584e32e DE |
1224 | |
1225 | /* Found a match for the main source file. | |
1226 | Copy its line_vector and symtab to the main subfile | |
1227 | and then discard it. */ | |
1228 | ||
43f3e411 DE |
1229 | mainsub->line_vector = mainsub_alias->line_vector; |
1230 | mainsub->line_vector_length = mainsub_alias->line_vector_length; | |
1231 | mainsub->symtab = mainsub_alias->symtab; | |
4584e32e DE |
1232 | |
1233 | if (prev_mainsub_alias == NULL) | |
4a2125f5 | 1234 | subfiles = mainsub_alias->next; |
4584e32e DE |
1235 | else |
1236 | prev_mainsub_alias->next = mainsub_alias->next; | |
98387a29 | 1237 | xfree (mainsub_alias->name); |
4584e32e DE |
1238 | xfree (mainsub_alias); |
1239 | } | |
1240 | } | |
1241 | } | |
1242 | ||
4359dff1 JK |
1243 | /* Implementation of the first part of end_symtab. It allows modifying |
1244 | STATIC_BLOCK before it gets finalized by end_symtab_from_static_block. | |
1245 | If the returned value is NULL there is no blockvector created for | |
1246 | this symtab (you still must call end_symtab_from_static_block). | |
c906108c | 1247 | |
4359dff1 JK |
1248 | END_ADDR is the same as for end_symtab: the address of the end of the |
1249 | file's text. | |
c906108c | 1250 | |
4359dff1 | 1251 | If EXPANDABLE is non-zero the STATIC_BLOCK dictionary is made |
36586728 TT |
1252 | expandable. |
1253 | ||
1254 | If REQUIRED is non-zero, then a symtab is created even if it does | |
1255 | not contain any symbols. */ | |
6d30eef8 | 1256 | |
4359dff1 | 1257 | struct block * |
4a2125f5 TT |
1258 | buildsym_compunit::end_symtab_get_static_block (CORE_ADDR end_addr, |
1259 | int expandable, int required) | |
c906108c | 1260 | { |
c906108c SS |
1261 | /* Finish the lexical context of the last function in the file; pop |
1262 | the context stack. */ | |
1263 | ||
4a2125f5 | 1264 | if (!m_context_stack.empty ()) |
c906108c | 1265 | { |
a60f3166 | 1266 | struct context_stack cstk = pop_context (); |
4359dff1 | 1267 | |
c906108c | 1268 | /* Make a block for the local symbols within. */ |
c233e9c6 | 1269 | finish_block (cstk.name, cstk.old_blocks, NULL, |
a60f3166 | 1270 | cstk.start_addr, end_addr); |
c906108c | 1271 | |
4a2125f5 | 1272 | if (!m_context_stack.empty ()) |
c906108c SS |
1273 | { |
1274 | /* This is said to happen with SCO. The old coffread.c | |
1275 | code simply emptied the context stack, so we do the | |
1276 | same. FIXME: Find out why it is happening. This is not | |
1277 | believed to happen in most cases (even for coffread.c); | |
1278 | it used to be an abort(). */ | |
b98664d3 | 1279 | complaint (_("Context stack not empty in end_symtab")); |
4a2125f5 | 1280 | m_context_stack.clear (); |
c906108c SS |
1281 | } |
1282 | } | |
1283 | ||
1284 | /* Reordered executables may have out of order pending blocks; if | |
1285 | OBJF_REORDERED is true, then sort the pending blocks. */ | |
6d30eef8 | 1286 | |
4a2125f5 | 1287 | if ((objfile->flags & OBJF_REORDERED) && m_pending_blocks) |
c906108c | 1288 | { |
07e7f39f | 1289 | struct pending_block *pb; |
c906108c | 1290 | |
b05628f0 | 1291 | std::vector<block *> barray; |
c906108c | 1292 | |
4a2125f5 | 1293 | for (pb = m_pending_blocks; pb != NULL; pb = pb->next) |
b05628f0 | 1294 | barray.push_back (pb->block); |
07e7f39f | 1295 | |
5033013f UW |
1296 | /* Sort blocks by start address in descending order. Blocks with the |
1297 | same start address must remain in the original order to preserve | |
1298 | inline function caller/callee relationships. */ | |
1299 | std::stable_sort (barray.begin (), barray.end (), | |
1300 | [] (const block *a, const block *b) | |
1301 | { | |
1302 | return BLOCK_START (a) > BLOCK_START (b); | |
1303 | }); | |
07e7f39f | 1304 | |
b05628f0 | 1305 | int i = 0; |
4a2125f5 | 1306 | for (pb = m_pending_blocks; pb != NULL; pb = pb->next) |
b05628f0 | 1307 | pb->block = barray[i++]; |
c906108c SS |
1308 | } |
1309 | ||
1310 | /* Cleanup any undefined types that have been left hanging around | |
1311 | (this needs to be done before the finish_blocks so that | |
1312 | file_symbols is still good). | |
c5aa993b | 1313 | |
0a0edcd5 | 1314 | Both cleanup_undefined_stabs_types and finish_global_stabs are stabs |
c906108c SS |
1315 | specific, but harmless for other symbol readers, since on gdb |
1316 | startup or when finished reading stabs, the state is set so these | |
1317 | are no-ops. FIXME: Is this handled right in case of QUIT? Can | |
1318 | we make this cleaner? */ | |
1319 | ||
0a0edcd5 | 1320 | cleanup_undefined_stabs_types (objfile); |
c906108c SS |
1321 | finish_global_stabs (objfile); |
1322 | ||
36586728 | 1323 | if (!required |
4a2125f5 TT |
1324 | && m_pending_blocks == NULL |
1325 | && m_file_symbols == NULL | |
1326 | && m_global_symbols == NULL | |
1327 | && !m_have_line_numbers | |
1328 | && m_pending_macros == NULL | |
1329 | && m_global_using_directives == NULL) | |
c906108c | 1330 | { |
4359dff1 JK |
1331 | /* Ignore symtabs that have no functions with real debugging info. */ |
1332 | return NULL; | |
1333 | } | |
1334 | else | |
1335 | { | |
1336 | /* Define the STATIC_BLOCK. */ | |
e148f09d | 1337 | return finish_block_internal (NULL, get_file_symbols (), NULL, NULL, |
4a2125f5 | 1338 | m_last_source_start_addr, |
2c99ee5c | 1339 | end_addr, 0, expandable); |
4359dff1 JK |
1340 | } |
1341 | } | |
1342 | ||
7bab9b58 DE |
1343 | /* Subroutine of end_symtab_from_static_block to simplify it. |
1344 | Handle the "have blockvector" case. | |
1345 | See end_symtab_from_static_block for a description of the arguments. */ | |
1346 | ||
4a2125f5 TT |
1347 | struct compunit_symtab * |
1348 | buildsym_compunit::end_symtab_with_blockvector (struct block *static_block, | |
1349 | int section, int expandable) | |
4359dff1 | 1350 | { |
4a2125f5 | 1351 | struct compunit_symtab *cu = compunit_symtab; |
7bab9b58 | 1352 | struct symtab *symtab; |
4359dff1 JK |
1353 | struct blockvector *blockvector; |
1354 | struct subfile *subfile; | |
7bab9b58 | 1355 | CORE_ADDR end_addr; |
4359dff1 | 1356 | |
7bab9b58 | 1357 | gdb_assert (static_block != NULL); |
4a2125f5 | 1358 | gdb_assert (subfiles != NULL); |
7bab9b58 DE |
1359 | |
1360 | end_addr = BLOCK_END (static_block); | |
1361 | ||
1362 | /* Create the GLOBAL_BLOCK and build the blockvector. */ | |
e148f09d | 1363 | finish_block_internal (NULL, get_global_symbols (), NULL, NULL, |
4a2125f5 | 1364 | m_last_source_start_addr, end_addr, |
7bab9b58 | 1365 | 1, expandable); |
43f3e411 | 1366 | blockvector = make_blockvector (); |
c906108c | 1367 | |
f56ce883 DE |
1368 | /* Read the line table if it has to be read separately. |
1369 | This is only used by xcoffread.c. */ | |
c295b2e5 | 1370 | if (objfile->sf->sym_read_linetable != NULL) |
f56ce883 | 1371 | objfile->sf->sym_read_linetable (objfile); |
c906108c | 1372 | |
4584e32e DE |
1373 | /* Handle the case where the debug info specifies a different path |
1374 | for the main source file. It can cause us to lose track of its | |
1375 | line number information. */ | |
1376 | watch_main_source_file_lossage (); | |
1377 | ||
43f3e411 DE |
1378 | /* Now create the symtab objects proper, if not already done, |
1379 | one for each subfile. */ | |
c906108c | 1380 | |
4a2125f5 | 1381 | for (subfile = subfiles; |
43f3e411 DE |
1382 | subfile != NULL; |
1383 | subfile = subfile->next) | |
c906108c SS |
1384 | { |
1385 | int linetablesize = 0; | |
c906108c | 1386 | |
7bab9b58 | 1387 | if (subfile->line_vector) |
c906108c | 1388 | { |
7bab9b58 DE |
1389 | linetablesize = sizeof (struct linetable) + |
1390 | subfile->line_vector->nitems * sizeof (struct linetable_entry); | |
1391 | ||
1392 | /* Like the pending blocks, the line table may be | |
1393 | scrambled in reordered executables. Sort it if | |
1394 | OBJF_REORDERED is true. */ | |
1395 | if (objfile->flags & OBJF_REORDERED) | |
1396 | qsort (subfile->line_vector->item, | |
1397 | subfile->line_vector->nitems, | |
1398 | sizeof (struct linetable_entry), compare_line_numbers); | |
1399 | } | |
9182c5bc | 1400 | |
7bab9b58 DE |
1401 | /* Allocate a symbol table if necessary. */ |
1402 | if (subfile->symtab == NULL) | |
43f3e411 | 1403 | subfile->symtab = allocate_symtab (cu, subfile->name); |
7bab9b58 | 1404 | symtab = subfile->symtab; |
9182c5bc | 1405 | |
7bab9b58 | 1406 | /* Fill in its components. */ |
43f3e411 | 1407 | |
7bab9b58 DE |
1408 | if (subfile->line_vector) |
1409 | { | |
1410 | /* Reallocate the line table on the symbol obstack. */ | |
8435453b | 1411 | SYMTAB_LINETABLE (symtab) = (struct linetable *) |
7bab9b58 | 1412 | obstack_alloc (&objfile->objfile_obstack, linetablesize); |
8435453b DE |
1413 | memcpy (SYMTAB_LINETABLE (symtab), subfile->line_vector, |
1414 | linetablesize); | |
c906108c | 1415 | } |
24be086d | 1416 | else |
c906108c | 1417 | { |
8435453b | 1418 | SYMTAB_LINETABLE (symtab) = NULL; |
c906108c | 1419 | } |
c906108c | 1420 | |
7bab9b58 DE |
1421 | /* Use whatever language we have been using for this |
1422 | subfile, not the one that was deduced in allocate_symtab | |
1423 | from the filename. We already did our own deducing when | |
1424 | we created the subfile, and we may have altered our | |
1425 | opinion of what language it is from things we found in | |
1426 | the symbols. */ | |
1427 | symtab->language = subfile->language; | |
43f3e411 | 1428 | } |
c906108c | 1429 | |
43f3e411 DE |
1430 | /* Make sure the symtab of main_subfile is the first in its list. */ |
1431 | { | |
1432 | struct symtab *main_symtab, *prev_symtab; | |
1433 | ||
4a2125f5 | 1434 | main_symtab = main_subfile->symtab; |
43f3e411 DE |
1435 | prev_symtab = NULL; |
1436 | ALL_COMPUNIT_FILETABS (cu, symtab) | |
1437 | { | |
1438 | if (symtab == main_symtab) | |
1439 | { | |
1440 | if (prev_symtab != NULL) | |
1441 | { | |
1442 | prev_symtab->next = main_symtab->next; | |
1443 | main_symtab->next = COMPUNIT_FILETABS (cu); | |
1444 | COMPUNIT_FILETABS (cu) = main_symtab; | |
1445 | } | |
1446 | break; | |
1447 | } | |
1448 | prev_symtab = symtab; | |
1449 | } | |
1450 | gdb_assert (main_symtab == COMPUNIT_FILETABS (cu)); | |
1451 | } | |
84a146c9 | 1452 | |
0ab9ce85 | 1453 | /* Fill out the compunit symtab. */ |
84a146c9 | 1454 | |
4a2125f5 | 1455 | if (comp_dir != NULL) |
43f3e411 DE |
1456 | { |
1457 | /* Reallocate the dirname on the symbol obstack. */ | |
4a2125f5 | 1458 | const char *comp_dir = this->comp_dir.get (); |
43f3e411 | 1459 | COMPUNIT_DIRNAME (cu) |
224c3ddb | 1460 | = (const char *) obstack_copy0 (&objfile->objfile_obstack, |
905eb0e2 | 1461 | comp_dir, strlen (comp_dir)); |
c906108c SS |
1462 | } |
1463 | ||
43f3e411 | 1464 | /* Save the debug format string (if any) in the symtab. */ |
4a2125f5 | 1465 | COMPUNIT_DEBUGFORMAT (cu) = debugformat; |
43f3e411 DE |
1466 | |
1467 | /* Similarly for the producer. */ | |
4a2125f5 | 1468 | COMPUNIT_PRODUCER (cu) = producer; |
43f3e411 DE |
1469 | |
1470 | COMPUNIT_BLOCKVECTOR (cu) = blockvector; | |
7bab9b58 | 1471 | { |
43f3e411 | 1472 | struct block *b = BLOCKVECTOR_BLOCK (blockvector, GLOBAL_BLOCK); |
cb1df416 | 1473 | |
43f3e411 | 1474 | set_block_compunit_symtab (b, cu); |
7bab9b58 | 1475 | } |
cb1df416 | 1476 | |
43f3e411 DE |
1477 | COMPUNIT_BLOCK_LINE_SECTION (cu) = section; |
1478 | ||
4a2125f5 | 1479 | COMPUNIT_MACRO_TABLE (cu) = release_macros (); |
43f3e411 | 1480 | |
7bab9b58 DE |
1481 | /* Default any symbols without a specified symtab to the primary symtab. */ |
1482 | { | |
1483 | int block_i; | |
1484 | ||
43f3e411 DE |
1485 | /* The main source file's symtab. */ |
1486 | symtab = COMPUNIT_FILETABS (cu); | |
1487 | ||
7bab9b58 DE |
1488 | for (block_i = 0; block_i < BLOCKVECTOR_NBLOCKS (blockvector); block_i++) |
1489 | { | |
1490 | struct block *block = BLOCKVECTOR_BLOCK (blockvector, block_i); | |
1491 | struct symbol *sym; | |
1492 | struct dict_iterator iter; | |
1493 | ||
1494 | /* Inlined functions may have symbols not in the global or | |
1495 | static symbol lists. */ | |
1496 | if (BLOCK_FUNCTION (block) != NULL) | |
08be3fe3 DE |
1497 | if (symbol_symtab (BLOCK_FUNCTION (block)) == NULL) |
1498 | symbol_set_symtab (BLOCK_FUNCTION (block), symtab); | |
7bab9b58 DE |
1499 | |
1500 | /* Note that we only want to fix up symbols from the local | |
1501 | blocks, not blocks coming from included symtabs. That is why | |
1502 | we use ALL_DICT_SYMBOLS here and not ALL_BLOCK_SYMBOLS. */ | |
1503 | ALL_DICT_SYMBOLS (BLOCK_DICT (block), iter, sym) | |
08be3fe3 DE |
1504 | if (symbol_symtab (sym) == NULL) |
1505 | symbol_set_symtab (sym, symtab); | |
7bab9b58 DE |
1506 | } |
1507 | } | |
edb3359d | 1508 | |
43f3e411 | 1509 | add_compunit_symtab_to_objfile (cu); |
43f3e411 DE |
1510 | |
1511 | return cu; | |
7bab9b58 DE |
1512 | } |
1513 | ||
1514 | /* Implementation of the second part of end_symtab. Pass STATIC_BLOCK | |
1515 | as value returned by end_symtab_get_static_block. | |
1516 | ||
1517 | SECTION is the same as for end_symtab: the section number | |
1518 | (in objfile->section_offsets) of the blockvector and linetable. | |
1519 | ||
1520 | If EXPANDABLE is non-zero the GLOBAL_BLOCK dictionary is made | |
1521 | expandable. */ | |
1522 | ||
43f3e411 | 1523 | struct compunit_symtab * |
4a2125f5 TT |
1524 | buildsym_compunit::end_symtab_from_static_block (struct block *static_block, |
1525 | int section, int expandable) | |
7bab9b58 | 1526 | { |
43f3e411 | 1527 | struct compunit_symtab *cu; |
7bab9b58 DE |
1528 | |
1529 | if (static_block == NULL) | |
1530 | { | |
0ab9ce85 DE |
1531 | /* Handle the "no blockvector" case. |
1532 | When this happens there is nothing to record, so there's nothing | |
1533 | to do: memory will be freed up later. | |
1534 | ||
1535 | Note: We won't be adding a compunit to the objfile's list of | |
1536 | compunits, so there's nothing to unchain. However, since each symtab | |
1537 | is added to the objfile's obstack we can't free that space. | |
1538 | We could do better, but this is believed to be a sufficiently rare | |
1539 | event. */ | |
43f3e411 | 1540 | cu = NULL; |
7bab9b58 DE |
1541 | } |
1542 | else | |
43f3e411 | 1543 | cu = end_symtab_with_blockvector (static_block, section, expandable); |
cb1df416 | 1544 | |
43f3e411 | 1545 | return cu; |
6d30eef8 DE |
1546 | } |
1547 | ||
4359dff1 JK |
1548 | /* Finish the symbol definitions for one main source file, close off |
1549 | all the lexical contexts for that file (creating struct block's for | |
1550 | them), then make the struct symtab for that file and put it in the | |
1551 | list of all such. | |
1552 | ||
1553 | END_ADDR is the address of the end of the file's text. SECTION is | |
1554 | the section number (in objfile->section_offsets) of the blockvector | |
1555 | and linetable. | |
1556 | ||
1557 | Note that it is possible for end_symtab() to return NULL. In | |
1558 | particular, for the DWARF case at least, it will return NULL when | |
1559 | it finds a compilation unit that has exactly one DIE, a | |
1560 | TAG_compile_unit DIE. This can happen when we link in an object | |
1561 | file that was compiled from an empty source file. Returning NULL | |
1562 | is probably not the correct thing to do, because then gdb will | |
1563 | never know about this empty file (FIXME). | |
1564 | ||
1565 | If you need to modify STATIC_BLOCK before it is finalized you should | |
1566 | call end_symtab_get_static_block and end_symtab_from_static_block | |
1567 | yourself. */ | |
6d30eef8 | 1568 | |
43f3e411 | 1569 | struct compunit_symtab * |
4a2125f5 | 1570 | buildsym_compunit::end_symtab (CORE_ADDR end_addr, int section) |
6d30eef8 | 1571 | { |
4359dff1 JK |
1572 | struct block *static_block; |
1573 | ||
4d663531 DE |
1574 | static_block = end_symtab_get_static_block (end_addr, 0, 0); |
1575 | return end_symtab_from_static_block (static_block, section, 0); | |
6d30eef8 DE |
1576 | } |
1577 | ||
4359dff1 | 1578 | /* Same as end_symtab except create a symtab that can be later added to. */ |
6d30eef8 | 1579 | |
43f3e411 | 1580 | struct compunit_symtab * |
4a2125f5 | 1581 | buildsym_compunit::end_expandable_symtab (CORE_ADDR end_addr, int section) |
6d30eef8 | 1582 | { |
4359dff1 JK |
1583 | struct block *static_block; |
1584 | ||
4d663531 DE |
1585 | static_block = end_symtab_get_static_block (end_addr, 1, 0); |
1586 | return end_symtab_from_static_block (static_block, section, 1); | |
6d30eef8 DE |
1587 | } |
1588 | ||
1589 | /* Subroutine of augment_type_symtab to simplify it. | |
43f3e411 DE |
1590 | Attach the main source file's symtab to all symbols in PENDING_LIST that |
1591 | don't have one. */ | |
6d30eef8 DE |
1592 | |
1593 | static void | |
43f3e411 DE |
1594 | set_missing_symtab (struct pending *pending_list, |
1595 | struct compunit_symtab *cu) | |
6d30eef8 DE |
1596 | { |
1597 | struct pending *pending; | |
1598 | int i; | |
1599 | ||
1600 | for (pending = pending_list; pending != NULL; pending = pending->next) | |
801e3a5b | 1601 | { |
6d30eef8 DE |
1602 | for (i = 0; i < pending->nsyms; ++i) |
1603 | { | |
08be3fe3 DE |
1604 | if (symbol_symtab (pending->symbol[i]) == NULL) |
1605 | symbol_set_symtab (pending->symbol[i], COMPUNIT_FILETABS (cu)); | |
6d30eef8 | 1606 | } |
801e3a5b | 1607 | } |
6d30eef8 | 1608 | } |
c906108c | 1609 | |
6d30eef8 DE |
1610 | /* Same as end_symtab, but for the case where we're adding more symbols |
1611 | to an existing symtab that is known to contain only type information. | |
1612 | This is the case for DWARF4 Type Units. */ | |
1613 | ||
1614 | void | |
4a2125f5 | 1615 | buildsym_compunit::augment_type_symtab () |
6d30eef8 | 1616 | { |
4a2125f5 | 1617 | struct compunit_symtab *cust = compunit_symtab; |
43f3e411 | 1618 | const struct blockvector *blockvector = COMPUNIT_BLOCKVECTOR (cust); |
6d30eef8 | 1619 | |
4a2125f5 | 1620 | if (!m_context_stack.empty ()) |
a60f3166 | 1621 | complaint (_("Context stack not empty in augment_type_symtab")); |
4a2125f5 | 1622 | if (m_pending_blocks != NULL) |
b98664d3 | 1623 | complaint (_("Blocks in a type symtab")); |
4a2125f5 | 1624 | if (m_pending_macros != NULL) |
b98664d3 | 1625 | complaint (_("Macro in a type symtab")); |
4a2125f5 | 1626 | if (m_have_line_numbers) |
b98664d3 | 1627 | complaint (_("Line numbers recorded in a type symtab")); |
6d30eef8 | 1628 | |
4a2125f5 | 1629 | if (m_file_symbols != NULL) |
6d30eef8 DE |
1630 | { |
1631 | struct block *block = BLOCKVECTOR_BLOCK (blockvector, STATIC_BLOCK); | |
1632 | ||
1633 | /* First mark any symbols without a specified symtab as belonging | |
1634 | to the primary symtab. */ | |
4a2125f5 | 1635 | set_missing_symtab (m_file_symbols, cust); |
6d30eef8 | 1636 | |
4a2125f5 | 1637 | dict_add_pending (BLOCK_DICT (block), m_file_symbols); |
6d30eef8 DE |
1638 | } |
1639 | ||
4a2125f5 | 1640 | if (m_global_symbols != NULL) |
6d30eef8 DE |
1641 | { |
1642 | struct block *block = BLOCKVECTOR_BLOCK (blockvector, GLOBAL_BLOCK); | |
1643 | ||
1644 | /* First mark any symbols without a specified symtab as belonging | |
1645 | to the primary symtab. */ | |
4a2125f5 | 1646 | set_missing_symtab (m_global_symbols, cust); |
6d30eef8 | 1647 | |
e148f09d | 1648 | dict_add_pending (BLOCK_DICT (block), |
4a2125f5 | 1649 | m_global_symbols); |
6d30eef8 | 1650 | } |
c906108c SS |
1651 | } |
1652 | ||
1653 | /* Push a context block. Args are an identifying nesting level | |
1654 | (checkable when you pop it), and the starting PC address of this | |
1655 | context. */ | |
1656 | ||
1657 | struct context_stack * | |
4a2125f5 | 1658 | buildsym_compunit::push_context (int desc, CORE_ADDR valu) |
c906108c | 1659 | { |
4a2125f5 TT |
1660 | m_context_stack.emplace_back (); |
1661 | struct context_stack *newobj = &m_context_stack.back (); | |
c906108c | 1662 | |
fe978cb0 | 1663 | newobj->depth = desc; |
4a2125f5 TT |
1664 | newobj->locals = m_local_symbols; |
1665 | newobj->old_blocks = m_pending_blocks; | |
fe978cb0 | 1666 | newobj->start_addr = valu; |
4a2125f5 | 1667 | newobj->local_using_directives = m_local_using_directives; |
fe978cb0 | 1668 | newobj->name = NULL; |
c906108c | 1669 | |
4a2125f5 TT |
1670 | m_local_symbols = NULL; |
1671 | m_local_using_directives = NULL; | |
c906108c | 1672 | |
fe978cb0 | 1673 | return newobj; |
c906108c | 1674 | } |
0c5e171a | 1675 | |
a672ef13 | 1676 | /* Pop a context block. Returns the address of the context block just |
4a64f543 | 1677 | popped. */ |
a672ef13 | 1678 | |
a60f3166 | 1679 | struct context_stack |
4a2125f5 | 1680 | buildsym_compunit::pop_context () |
0c5e171a | 1681 | { |
4a2125f5 TT |
1682 | gdb_assert (!m_context_stack.empty ()); |
1683 | struct context_stack result = m_context_stack.back (); | |
1684 | m_context_stack.pop_back (); | |
a60f3166 | 1685 | return result; |
0c5e171a KD |
1686 | } |
1687 | ||
c906108c | 1688 | \f |
357e46e7 | 1689 | |
c906108c | 1690 | void |
554d387d | 1691 | record_debugformat (const char *format) |
c906108c | 1692 | { |
4a2125f5 | 1693 | buildsym_compunit->record_debugformat (format); |
c906108c SS |
1694 | } |
1695 | ||
303b6f5d DJ |
1696 | void |
1697 | record_producer (const char *producer) | |
1698 | { | |
4a2125f5 | 1699 | buildsym_compunit->record_producer (producer); |
303b6f5d DJ |
1700 | } |
1701 | ||
c906108c | 1702 | \f |
46212e0b | 1703 | |
46212e0b TT |
1704 | /* See buildsym.h. */ |
1705 | ||
1706 | void | |
1707 | set_last_source_file (const char *name) | |
1708 | { | |
c0015d44 TT |
1709 | gdb_assert (buildsym_compunit != nullptr || name == nullptr); |
1710 | if (buildsym_compunit != nullptr) | |
1711 | buildsym_compunit->set_last_source_file (name); | |
46212e0b TT |
1712 | } |
1713 | ||
1714 | /* See buildsym.h. */ | |
1715 | ||
1716 | const char * | |
4a2125f5 | 1717 | get_last_source_file () |
46212e0b | 1718 | { |
c0015d44 TT |
1719 | if (buildsym_compunit == nullptr) |
1720 | return nullptr; | |
4a2125f5 | 1721 | return buildsym_compunit->get_last_source_file (); |
46212e0b TT |
1722 | } |
1723 | ||
2c99ee5c TT |
1724 | /* See buildsym.h. */ |
1725 | ||
1726 | void | |
1727 | set_last_source_start_addr (CORE_ADDR addr) | |
1728 | { | |
1729 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1730 | buildsym_compunit->set_last_source_start_addr (addr); |
2c99ee5c TT |
1731 | } |
1732 | ||
1733 | /* See buildsym.h. */ | |
1734 | ||
1735 | CORE_ADDR | |
1736 | get_last_source_start_addr () | |
1737 | { | |
1738 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1739 | return buildsym_compunit->get_last_source_start_addr (); |
2c99ee5c TT |
1740 | } |
1741 | ||
6cccc9a8 TT |
1742 | /* See buildsym.h. */ |
1743 | ||
1744 | struct using_direct ** | |
1745 | get_local_using_directives () | |
1746 | { | |
1747 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1748 | return buildsym_compunit->get_local_using_directives (); |
6cccc9a8 TT |
1749 | } |
1750 | ||
1751 | /* See buildsym.h. */ | |
1752 | ||
1753 | void | |
1754 | set_local_using_directives (struct using_direct *new_local) | |
1755 | { | |
1756 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1757 | buildsym_compunit->set_local_using_directives (new_local); |
6cccc9a8 TT |
1758 | } |
1759 | ||
1760 | /* See buildsym.h. */ | |
1761 | ||
1762 | struct using_direct ** | |
1763 | get_global_using_directives () | |
1764 | { | |
1765 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1766 | return buildsym_compunit->get_global_using_directives (); |
6cccc9a8 TT |
1767 | } |
1768 | ||
a60f3166 TT |
1769 | /* See buildsym.h. */ |
1770 | ||
1771 | bool | |
1772 | outermost_context_p () | |
1773 | { | |
1774 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1775 | return buildsym_compunit->outermost_context_p (); |
a60f3166 TT |
1776 | } |
1777 | ||
1778 | /* See buildsym.h. */ | |
1779 | ||
1780 | struct context_stack * | |
1781 | get_current_context_stack () | |
1782 | { | |
1783 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1784 | return buildsym_compunit->get_current_context_stack (); |
a60f3166 TT |
1785 | } |
1786 | ||
1787 | /* See buildsym.h. */ | |
1788 | ||
1789 | int | |
1790 | get_context_stack_depth () | |
1791 | { | |
1792 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1793 | return buildsym_compunit->get_context_stack_depth (); |
a60f3166 TT |
1794 | } |
1795 | ||
3c65e5b3 TT |
1796 | /* See buildsym.h. */ |
1797 | ||
1798 | struct subfile * | |
1799 | get_current_subfile () | |
1800 | { | |
1801 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1802 | return buildsym_compunit->get_current_subfile (); |
3c65e5b3 TT |
1803 | } |
1804 | ||
e148f09d TT |
1805 | /* See buildsym.h. */ |
1806 | ||
1807 | struct pending ** | |
1808 | get_local_symbols () | |
1809 | { | |
1810 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1811 | return buildsym_compunit->get_local_symbols (); |
e148f09d TT |
1812 | } |
1813 | ||
1814 | /* See buildsym.h. */ | |
1815 | ||
1816 | struct pending ** | |
1817 | get_file_symbols () | |
1818 | { | |
1819 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 | 1820 | return buildsym_compunit->get_file_symbols (); |
e148f09d TT |
1821 | } |
1822 | ||
1823 | /* See buildsym.h. */ | |
1824 | ||
1825 | struct pending ** | |
1826 | get_global_symbols () | |
1827 | { | |
1828 | gdb_assert (buildsym_compunit != nullptr); | |
4a2125f5 TT |
1829 | return buildsym_compunit->get_global_symbols (); |
1830 | } | |
1831 | ||
1832 | void | |
1833 | start_subfile (const char *name) | |
1834 | { | |
1835 | gdb_assert (buildsym_compunit != nullptr); | |
1836 | buildsym_compunit->start_subfile (name); | |
1837 | } | |
1838 | ||
1839 | void | |
1840 | patch_subfile_names (struct subfile *subfile, const char *name) | |
1841 | { | |
1842 | gdb_assert (buildsym_compunit != nullptr); | |
1843 | buildsym_compunit->patch_subfile_names (subfile, name); | |
1844 | } | |
1845 | ||
1846 | void | |
1847 | push_subfile () | |
1848 | { | |
1849 | gdb_assert (buildsym_compunit != nullptr); | |
1850 | buildsym_compunit->push_subfile (); | |
1851 | } | |
1852 | ||
1853 | const char * | |
1854 | pop_subfile () | |
1855 | { | |
1856 | gdb_assert (buildsym_compunit != nullptr); | |
1857 | return buildsym_compunit->pop_subfile (); | |
1858 | } | |
1859 | ||
1860 | struct block * | |
1861 | end_symtab_get_static_block (CORE_ADDR end_addr, int expandable, int required) | |
1862 | { | |
1863 | gdb_assert (buildsym_compunit != nullptr); | |
1864 | return buildsym_compunit->end_symtab_get_static_block (end_addr, expandable, | |
1865 | required); | |
1866 | } | |
1867 | ||
1868 | struct compunit_symtab * | |
1869 | end_symtab_from_static_block (struct block *static_block, | |
1870 | int section, int expandable) | |
1871 | { | |
1872 | gdb_assert (buildsym_compunit != nullptr); | |
1873 | struct compunit_symtab *result | |
1874 | = buildsym_compunit->end_symtab_from_static_block (static_block, | |
1875 | section, expandable); | |
74c72eac | 1876 | free_buildsym_compunit (); |
4a2125f5 TT |
1877 | return result; |
1878 | } | |
1879 | ||
1880 | struct compunit_symtab * | |
1881 | end_symtab (CORE_ADDR end_addr, int section) | |
1882 | { | |
1883 | gdb_assert (buildsym_compunit != nullptr); | |
1884 | struct compunit_symtab *result | |
1885 | = buildsym_compunit->end_symtab (end_addr, section); | |
74c72eac | 1886 | free_buildsym_compunit (); |
4a2125f5 TT |
1887 | return result; |
1888 | } | |
1889 | ||
1890 | struct compunit_symtab * | |
1891 | end_expandable_symtab (CORE_ADDR end_addr, int section) | |
1892 | { | |
1893 | gdb_assert (buildsym_compunit != nullptr); | |
1894 | struct compunit_symtab *result | |
1895 | = buildsym_compunit->end_expandable_symtab (end_addr, section); | |
74c72eac | 1896 | free_buildsym_compunit (); |
4a2125f5 TT |
1897 | return result; |
1898 | } | |
1899 | ||
1900 | void | |
1901 | augment_type_symtab () | |
1902 | { | |
1903 | gdb_assert (buildsym_compunit != nullptr); | |
1904 | buildsym_compunit->augment_type_symtab (); | |
74c72eac | 1905 | free_buildsym_compunit (); |
4a2125f5 TT |
1906 | } |
1907 | ||
1908 | struct context_stack * | |
1909 | push_context (int desc, CORE_ADDR valu) | |
1910 | { | |
1911 | gdb_assert (buildsym_compunit != nullptr); | |
1912 | return buildsym_compunit->push_context (desc, valu); | |
1913 | } | |
1914 | ||
1915 | struct context_stack | |
1916 | pop_context () | |
1917 | { | |
1918 | gdb_assert (buildsym_compunit != nullptr); | |
1919 | return buildsym_compunit->pop_context (); | |
1920 | } | |
1921 | ||
1922 | struct block * | |
1923 | finish_block (struct symbol *symbol, struct pending_block *old_blocks, | |
1924 | const struct dynamic_prop *static_link, | |
1925 | CORE_ADDR start, CORE_ADDR end) | |
1926 | { | |
1927 | gdb_assert (buildsym_compunit != nullptr); | |
1928 | return buildsym_compunit->finish_block (symbol, old_blocks, static_link, | |
1929 | start, end); | |
1930 | } | |
1931 | ||
1932 | void | |
1933 | record_block_range (struct block *block, CORE_ADDR start, | |
1934 | CORE_ADDR end_inclusive) | |
1935 | { | |
1936 | gdb_assert (buildsym_compunit != nullptr); | |
1937 | buildsym_compunit->record_block_range (block, start, end_inclusive); | |
1938 | } | |
1939 | ||
1940 | void | |
1941 | record_line (struct subfile *subfile, int line, CORE_ADDR pc) | |
1942 | { | |
1943 | gdb_assert (buildsym_compunit != nullptr); | |
1944 | buildsym_compunit->record_line (subfile, line, pc); | |
e148f09d | 1945 | } |