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c906108c | 1 | /* Definitions for reading symbol files into GDB. |
3a6c3343 | 2 | |
618f726f | 3 | Copyright (C) 1990-2016 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #if !defined (SYMFILE_H) | |
21 | #define SYMFILE_H | |
22 | ||
23 | /* This file requires that you first include "bfd.h". */ | |
16708cba | 24 | #include "symtab.h" |
48faced0 | 25 | #include "probe.h" |
b15cc25c PA |
26 | #include "symfile-add-flags.h" |
27 | #include "objfile-flags.h" | |
c906108c | 28 | |
63ca651f | 29 | /* Opaque declarations. */ |
0542c86d | 30 | struct target_section; |
da3331ec | 31 | struct objfile; |
1c772458 | 32 | struct obj_section; |
63ca651f | 33 | struct obstack; |
fe898f56 | 34 | struct block; |
55aa24fb SDJ |
35 | struct probe; |
36 | struct value; | |
37 | struct frame_info; | |
38 | struct agent_expr; | |
39 | struct axs_value; | |
63ca651f | 40 | |
2edb89d3 JK |
41 | /* Comparison function for symbol look ups. */ |
42 | ||
43 | typedef int (symbol_compare_ftype) (const char *string1, | |
44 | const char *string2); | |
45 | ||
3a6c3343 AC |
46 | /* Partial symbols are stored in the psymbol_cache and pointers to |
47 | them are kept in a dynamically grown array that is obtained from | |
48 | malloc and grown as necessary via realloc. Each objfile typically | |
49 | has two of these, one for global symbols and one for static | |
50 | symbols. Although this adds a level of indirection for storing or | |
51 | accessing the partial symbols, it allows us to throw away duplicate | |
52 | psymbols and set all pointers to the single saved instance. */ | |
c906108c | 53 | |
c5aa993b | 54 | struct psymbol_allocation_list |
3a6c3343 | 55 | { |
c906108c | 56 | |
3a6c3343 AC |
57 | /* Pointer to beginning of dynamically allocated array of pointers |
58 | to partial symbols. The array is dynamically expanded as | |
59 | necessary to accommodate more pointers. */ | |
c906108c | 60 | |
3a6c3343 | 61 | struct partial_symbol **list; |
c906108c | 62 | |
3a6c3343 AC |
63 | /* Pointer to next available slot in which to store a pointer to a |
64 | partial symbol. */ | |
c906108c | 65 | |
3a6c3343 | 66 | struct partial_symbol **next; |
c906108c | 67 | |
3a6c3343 AC |
68 | /* Number of allocated pointer slots in current dynamic array (not |
69 | the number of bytes of storage). The "next" pointer will always | |
70 | point somewhere between list[0] and list[size], and when at | |
71 | list[size] the array will be expanded on the next attempt to | |
72 | store a pointer. */ | |
c906108c | 73 | |
3a6c3343 AC |
74 | int size; |
75 | }; | |
c906108c | 76 | |
52059ffd TT |
77 | struct other_sections |
78 | { | |
79 | CORE_ADDR addr; | |
80 | char *name; | |
81 | ||
82 | /* SECTINDEX must be valid for associated BFD or set to -1. */ | |
83 | int sectindex; | |
84 | }; | |
85 | ||
62557bbc KB |
86 | /* Define an array of addresses to accommodate non-contiguous dynamic |
87 | loading of modules. This is for use when entering commands, so we | |
3a6c3343 AC |
88 | can keep track of the section names until we read the file and can |
89 | map them to bfd sections. This structure is also used by solib.c | |
90 | to communicate the section addresses in shared objects to | |
91 | symbol_file_add (). */ | |
92 | ||
93 | struct section_addr_info | |
62557bbc | 94 | { |
a39a16c4 MM |
95 | /* The number of sections for which address information is |
96 | available. */ | |
97 | size_t num_sections; | |
c378eb4e | 98 | /* Sections whose names are file format dependent. */ |
52059ffd | 99 | struct other_sections other[1]; |
62557bbc KB |
100 | }; |
101 | ||
28c32713 JB |
102 | |
103 | /* A table listing the load segments in a symfile, and which segment | |
104 | each BFD section belongs to. */ | |
31d99776 DJ |
105 | struct symfile_segment_data |
106 | { | |
107 | /* How many segments are present in this file. If there are | |
108 | two, the text segment is the first one and the data segment | |
109 | is the second one. */ | |
110 | int num_segments; | |
111 | ||
112 | /* If NUM_SEGMENTS is greater than zero, the original base address | |
113 | of each segment. */ | |
114 | CORE_ADDR *segment_bases; | |
115 | ||
116 | /* If NUM_SEGMENTS is greater than zero, the memory size of each | |
117 | segment. */ | |
118 | CORE_ADDR *segment_sizes; | |
119 | ||
120 | /* If NUM_SEGMENTS is greater than zero, this is an array of entries | |
28c32713 JB |
121 | recording which segment contains each BFD section. |
122 | SEGMENT_INFO[I] is S+1 if the I'th BFD section belongs to segment | |
123 | S, or zero if it is not in any segment. */ | |
31d99776 DJ |
124 | int *segment_info; |
125 | }; | |
126 | ||
44b13c5a JK |
127 | /* Callback for quick_symbol_functions->map_symbol_filenames. */ |
128 | ||
129 | typedef void (symbol_filename_ftype) (const char *filename, | |
130 | const char *fullname, void *data); | |
131 | ||
206f2a57 DE |
132 | /* Callback for quick_symbol_functions->expand_symtabs_matching |
133 | to match a file name. */ | |
134 | ||
135 | typedef int (expand_symtabs_file_matcher_ftype) (const char *filename, | |
136 | void *data, int basenames); | |
137 | ||
138 | /* Callback for quick_symbol_functions->expand_symtabs_matching | |
139 | to match a symbol name. */ | |
140 | ||
141 | typedef int (expand_symtabs_symbol_matcher_ftype) (const char *name, | |
142 | void *data); | |
143 | ||
276d885b GB |
144 | /* Callback for quick_symbol_functions->expand_symtabs_matching |
145 | to be called after a symtab has been expanded. */ | |
146 | ||
147 | typedef void (expand_symtabs_exp_notify_ftype) \ | |
148 | (struct compunit_symtab *symtab, void *data); | |
149 | ||
ccefe4c4 TT |
150 | /* The "quick" symbol functions exist so that symbol readers can |
151 | avoiding an initial read of all the symbols. For example, symbol | |
152 | readers might choose to use the "partial symbol table" utilities, | |
153 | which is one implementation of the quick symbol functions. | |
154 | ||
155 | The quick symbol functions are generally opaque: the underlying | |
156 | representation is hidden from the caller. | |
157 | ||
158 | In general, these functions should only look at whatever special | |
159 | index the symbol reader creates -- looking through the symbol | |
160 | tables themselves is handled by generic code. If a function is | |
161 | defined as returning a "symbol table", this means that the function | |
162 | should only return a newly-created symbol table; it should not | |
163 | examine pre-existing ones. | |
164 | ||
165 | The exact list of functions here was determined in an ad hoc way | |
166 | based on gdb's history. */ | |
167 | ||
168 | struct quick_symbol_functions | |
169 | { | |
170 | /* Return true if this objfile has any "partial" symbols | |
171 | available. */ | |
172 | int (*has_symbols) (struct objfile *objfile); | |
173 | ||
174 | /* Return the symbol table for the "last" file appearing in | |
175 | OBJFILE. */ | |
176 | struct symtab *(*find_last_source_symtab) (struct objfile *objfile); | |
177 | ||
178 | /* Forget all cached full file names for OBJFILE. */ | |
179 | void (*forget_cached_source_info) (struct objfile *objfile); | |
180 | ||
f8eba3c6 TT |
181 | /* Expand and iterate over each "partial" symbol table in OBJFILE |
182 | where the source file is named NAME. | |
183 | ||
af529f8f JK |
184 | If NAME is not absolute, a match after a '/' in the symbol table's |
185 | file name will also work, REAL_PATH is NULL then. If NAME is | |
186 | absolute then REAL_PATH is non-NULL absolute file name as resolved | |
187 | via gdb_realpath from NAME. | |
f8eba3c6 TT |
188 | |
189 | If a match is found, the "partial" symbol table is expanded. | |
190 | Then, this calls iterate_over_some_symtabs (or equivalent) over | |
191 | all newly-created symbol tables, passing CALLBACK and DATA to it. | |
192 | The result of this call is returned. */ | |
193 | int (*map_symtabs_matching_filename) (struct objfile *objfile, | |
194 | const char *name, | |
f8eba3c6 TT |
195 | const char *real_path, |
196 | int (*callback) (struct symtab *, | |
197 | void *), | |
198 | void *data); | |
ccefe4c4 TT |
199 | |
200 | /* Check to see if the symbol is defined in a "partial" symbol table | |
f88cb4b6 | 201 | of OBJFILE. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, |
ccefe4c4 TT |
202 | depending on whether we want to search global symbols or static |
203 | symbols. NAME is the name of the symbol to look for. DOMAIN | |
204 | indicates what sort of symbol to search for. | |
205 | ||
43f3e411 | 206 | Returns the newly-expanded compunit in which the symbol is |
bfb05775 | 207 | defined, or NULL if no such symbol table exists. If OBJFILE |
43f3e411 DE |
208 | contains !TYPE_OPAQUE symbol prefer its compunit. If it contains |
209 | only TYPE_OPAQUE symbol(s), return at least that compunit. */ | |
210 | struct compunit_symtab *(*lookup_symbol) (struct objfile *objfile, | |
211 | int block_index, const char *name, | |
212 | domain_enum domain); | |
ccefe4c4 TT |
213 | |
214 | /* Print statistics about any indices loaded for OBJFILE. The | |
215 | statistics should be printed to gdb_stdout. This is used for | |
216 | "maint print statistics". */ | |
217 | void (*print_stats) (struct objfile *objfile); | |
218 | ||
219 | /* Dump any indices loaded for OBJFILE. The dump should go to | |
220 | gdb_stdout. This is used for "maint print objfiles". */ | |
221 | void (*dump) (struct objfile *objfile); | |
222 | ||
223 | /* This is called by objfile_relocate to relocate any indices loaded | |
224 | for OBJFILE. */ | |
225 | void (*relocate) (struct objfile *objfile, | |
3189cb12 DE |
226 | const struct section_offsets *new_offsets, |
227 | const struct section_offsets *delta); | |
ccefe4c4 TT |
228 | |
229 | /* Find all the symbols in OBJFILE named FUNC_NAME, and ensure that | |
230 | the corresponding symbol tables are loaded. */ | |
231 | void (*expand_symtabs_for_function) (struct objfile *objfile, | |
232 | const char *func_name); | |
233 | ||
234 | /* Read all symbol tables associated with OBJFILE. */ | |
235 | void (*expand_all_symtabs) (struct objfile *objfile); | |
236 | ||
652a8996 JK |
237 | /* Read all symbol tables associated with OBJFILE which have |
238 | symtab_to_fullname equal to FULLNAME. | |
d4637a04 DE |
239 | This is for the purposes of examining code only, e.g., expand_line_sal. |
240 | The routine may ignore debug info that is known to not be useful with | |
241 | code, e.g., DW_TAG_type_unit for dwarf debug info. */ | |
652a8996 JK |
242 | void (*expand_symtabs_with_fullname) (struct objfile *objfile, |
243 | const char *fullname); | |
ccefe4c4 | 244 | |
fe978cb0 | 245 | /* Find global or static symbols in all tables that are in DOMAIN |
40658b94 | 246 | and for which MATCH (symbol name, NAME) == 0, passing each to |
265e52c3 | 247 | CALLBACK, reading in partial symbol tables as needed. Look |
c378eb4e | 248 | through global symbols if GLOBAL and otherwise static symbols. |
40658b94 PH |
249 | Passes NAME, NAMESPACE, and DATA to CALLBACK with each symbol |
250 | found. After each block is processed, passes NULL to CALLBACK. | |
1e3a8f45 JB |
251 | MATCH must be weaker than strcmp_iw_ordered in the sense that |
252 | strcmp_iw_ordered(x,y) == 0 --> MATCH(x,y) == 0. ORDERED_COMPARE, | |
253 | if non-null, must be an ordering relation compatible with | |
254 | strcmp_iw_ordered in the sense that | |
255 | strcmp_iw_ordered(x,y) == 0 --> ORDERED_COMPARE(x,y) == 0 | |
40658b94 | 256 | and |
1e3a8f45 JB |
257 | strcmp_iw_ordered(x,y) <= 0 --> ORDERED_COMPARE(x,y) <= 0 |
258 | (allowing strcmp_iw_ordered(x,y) < 0 while ORDERED_COMPARE(x, y) == 0). | |
40658b94 PH |
259 | CALLBACK returns 0 to indicate that the scan should continue, or |
260 | non-zero to indicate that the scan should be terminated. */ | |
261 | ||
ade7ed9e | 262 | void (*map_matching_symbols) (struct objfile *, |
fe978cb0 | 263 | const char *name, domain_enum domain, |
ade7ed9e | 264 | int global, |
40658b94 PH |
265 | int (*callback) (struct block *, |
266 | struct symbol *, void *), | |
267 | void *data, | |
2edb89d3 JK |
268 | symbol_compare_ftype *match, |
269 | symbol_compare_ftype *ordered_compare); | |
ccefe4c4 TT |
270 | |
271 | /* Expand all symbol tables in OBJFILE matching some criteria. | |
272 | ||
273 | FILE_MATCHER is called for each file in OBJFILE. The file name | |
274 | and the DATA argument are passed to it. If it returns zero, this | |
7b08b9eb | 275 | file is skipped. If FILE_MATCHER is NULL such file is not skipped. |
fbd9ab74 JK |
276 | If BASENAMES is non-zero the function should consider only base name of |
277 | DATA (passed file name is already only the lbasename part). | |
ccefe4c4 | 278 | |
7b08b9eb | 279 | Otherwise, if KIND does not match this symbol is skipped. |
74ccd7f5 | 280 | |
206f2a57 | 281 | If even KIND matches, then SYMBOL_MATCHER is called for each symbol |
e078317b | 282 | defined in the file. The symbol "search" name and DATA are passed |
206f2a57 | 283 | to SYMBOL_MATCHER. |
ccefe4c4 | 284 | |
206f2a57 | 285 | If SYMBOL_MATCHER returns zero, then this symbol is skipped. |
ccefe4c4 | 286 | |
7b08b9eb JK |
287 | Otherwise, this symbol's symbol table is expanded. |
288 | ||
ccefe4c4 TT |
289 | DATA is user data that is passed unmodified to the callback |
290 | functions. */ | |
f8eba3c6 TT |
291 | void (*expand_symtabs_matching) |
292 | (struct objfile *objfile, | |
206f2a57 DE |
293 | expand_symtabs_file_matcher_ftype *file_matcher, |
294 | expand_symtabs_symbol_matcher_ftype *symbol_matcher, | |
276d885b | 295 | expand_symtabs_exp_notify_ftype *expansion_notify, |
f8eba3c6 TT |
296 | enum search_domain kind, |
297 | void *data); | |
ccefe4c4 | 298 | |
43f3e411 DE |
299 | /* Return the comp unit from OBJFILE that contains PC and |
300 | SECTION. Return NULL if there is no such compunit. This | |
301 | should return the compunit that contains a symbol whose | |
ccefe4c4 | 302 | address exactly matches PC, or, if there is no exact match, the |
43f3e411 | 303 | compunit that contains a symbol whose address is closest to |
ccefe4c4 | 304 | PC. */ |
43f3e411 DE |
305 | struct compunit_symtab *(*find_pc_sect_compunit_symtab) |
306 | (struct objfile *objfile, struct bound_minimal_symbol msymbol, | |
307 | CORE_ADDR pc, struct obj_section *section, int warn_if_readin); | |
ccefe4c4 | 308 | |
ad727bb2 | 309 | /* Call a callback for every file defined in OBJFILE whose symtab is |
44b13c5a | 310 | not already read in. FUN is the callback. It is passed the file's |
74e2f255 DE |
311 | FILENAME, the file's FULLNAME (if need_fullname is non-zero), and |
312 | the DATA passed to this function. */ | |
ccefe4c4 | 313 | void (*map_symbol_filenames) (struct objfile *objfile, |
74e2f255 DE |
314 | symbol_filename_ftype *fun, void *data, |
315 | int need_fullname); | |
ccefe4c4 TT |
316 | }; |
317 | ||
55aa24fb SDJ |
318 | /* Structure of functions used for probe support. If one of these functions |
319 | is provided, all must be. */ | |
320 | ||
321 | struct sym_probe_fns | |
322 | { | |
323 | /* If non-NULL, return an array of probe objects. | |
324 | ||
325 | The returned value does not have to be freed and it has lifetime of the | |
326 | OBJFILE. */ | |
327 | VEC (probe_p) *(*sym_get_probes) (struct objfile *); | |
55aa24fb SDJ |
328 | }; |
329 | ||
c906108c SS |
330 | /* Structure to keep track of symbol reading functions for various |
331 | object file types. */ | |
332 | ||
c5aa993b | 333 | struct sym_fns |
3a6c3343 | 334 | { |
3a6c3343 AC |
335 | /* Initializes anything that is global to the entire symbol table. |
336 | It is called during symbol_file_add, when we begin debugging an | |
337 | entirely new program. */ | |
c906108c | 338 | |
3a6c3343 | 339 | void (*sym_new_init) (struct objfile *); |
c906108c | 340 | |
3a6c3343 AC |
341 | /* Reads any initial information from a symbol file, and initializes |
342 | the struct sym_fns SF in preparation for sym_read(). It is | |
343 | called every time we read a symbol file for any reason. */ | |
c906108c | 344 | |
3a6c3343 | 345 | void (*sym_init) (struct objfile *); |
c906108c | 346 | |
f4352531 | 347 | /* sym_read (objfile, symfile_flags) Reads a symbol file into a psymtab |
3a6c3343 | 348 | (or possibly a symtab). OBJFILE is the objfile struct for the |
f4352531 TG |
349 | file we are reading. SYMFILE_FLAGS are the flags passed to |
350 | symbol_file_add & co. */ | |
c906108c | 351 | |
b15cc25c | 352 | void (*sym_read) (struct objfile *, symfile_add_flags); |
c906108c | 353 | |
3e03848b JK |
354 | /* Read the partial symbols for an objfile. This may be NULL, in which case |
355 | gdb has to check other ways if this objfile has any symbols. This may | |
356 | only be non-NULL if the objfile actually does have debuginfo available. | |
357 | */ | |
b11896a5 TT |
358 | |
359 | void (*sym_read_psymbols) (struct objfile *); | |
360 | ||
3a6c3343 AC |
361 | /* Called when we are finished with an objfile. Should do all |
362 | cleanup that is specific to the object file format for the | |
363 | particular objfile. */ | |
c906108c | 364 | |
3a6c3343 | 365 | void (*sym_finish) (struct objfile *); |
c906108c | 366 | |
db7a9bcd | 367 | |
3a6c3343 | 368 | /* This function produces a file-dependent section_offsets |
db7a9bcd SM |
369 | structure, allocated in the objfile's storage. |
370 | ||
371 | The section_addr_info structure contains the offset of loadable and | |
372 | allocated sections, relative to the absolute offsets found in the BFD. */ | |
c906108c | 373 | |
3189cb12 | 374 | void (*sym_offsets) (struct objfile *, const struct section_addr_info *); |
c906108c | 375 | |
31d99776 DJ |
376 | /* This function produces a format-independent description of |
377 | the segments of ABFD. Each segment is a unit of the file | |
378 | which may be relocated independently. */ | |
379 | ||
380 | struct symfile_segment_data *(*sym_segments) (bfd *abfd); | |
381 | ||
c295b2e5 JB |
382 | /* This function should read the linetable from the objfile when |
383 | the line table cannot be read while processing the debugging | |
384 | information. */ | |
ac8035ab | 385 | |
f56ce883 | 386 | void (*sym_read_linetable) (struct objfile *); |
c295b2e5 | 387 | |
ac8035ab TG |
388 | /* Relocate the contents of a debug section SECTP. The |
389 | contents are stored in BUF if it is non-NULL, or returned in a | |
390 | malloc'd buffer otherwise. */ | |
391 | ||
392 | bfd_byte *(*sym_relocate) (struct objfile *, asection *sectp, bfd_byte *buf); | |
393 | ||
55aa24fb SDJ |
394 | /* If non-NULL, this objfile has probe support, and all the probe |
395 | functions referred to here will be non-NULL. */ | |
396 | const struct sym_probe_fns *sym_probe_fns; | |
397 | ||
ccefe4c4 TT |
398 | /* The "quick" (aka partial) symbol functions for this symbol |
399 | reader. */ | |
400 | const struct quick_symbol_functions *qf; | |
3a6c3343 | 401 | }; |
c906108c | 402 | |
567995e1 | 403 | extern struct section_addr_info * |
3e43a32a | 404 | build_section_addr_info_from_objfile (const struct objfile *objfile); |
567995e1 | 405 | |
75242ef4 JK |
406 | extern void relative_addr_info_to_section_offsets |
407 | (struct section_offsets *section_offsets, int num_sections, | |
3189cb12 | 408 | const struct section_addr_info *addrs); |
75242ef4 JK |
409 | |
410 | extern void addr_info_make_relative (struct section_addr_info *addrs, | |
411 | bfd *abfd); | |
412 | ||
c906108c SS |
413 | /* The default version of sym_fns.sym_offsets for readers that don't |
414 | do anything special. */ | |
415 | ||
570b8f7c | 416 | extern void default_symfile_offsets (struct objfile *objfile, |
3189cb12 | 417 | const struct section_addr_info *); |
c906108c | 418 | |
31d99776 DJ |
419 | /* The default version of sym_fns.sym_segments for readers that don't |
420 | do anything special. */ | |
421 | ||
422 | extern struct symfile_segment_data *default_symfile_segments (bfd *abfd); | |
c906108c | 423 | |
ac8035ab TG |
424 | /* The default version of sym_fns.sym_relocate for readers that don't |
425 | do anything special. */ | |
426 | ||
427 | extern bfd_byte *default_symfile_relocate (struct objfile *objfile, | |
428 | asection *sectp, bfd_byte *buf); | |
429 | ||
43f3e411 | 430 | extern struct symtab *allocate_symtab (struct compunit_symtab *, const char *) |
4e04028d | 431 | ATTRIBUTE_NONNULL (1); |
c906108c | 432 | |
43f3e411 DE |
433 | extern struct compunit_symtab *allocate_compunit_symtab (struct objfile *, |
434 | const char *) | |
435 | ATTRIBUTE_NONNULL (1); | |
436 | ||
437 | extern void add_compunit_symtab_to_objfile (struct compunit_symtab *cu); | |
438 | ||
c256e171 | 439 | extern void add_symtab_fns (enum bfd_flavour flavour, const struct sym_fns *); |
c906108c | 440 | |
b15cc25c | 441 | extern void clear_symtab_users (symfile_add_flags add_flags); |
f176c4b5 DE |
442 | |
443 | extern enum language deduce_language_from_filename (const char *); | |
444 | ||
56618e20 TT |
445 | /* Map the filename extension EXT to the language LANG. Any previous |
446 | association of EXT will be removed. EXT will be copied by this | |
447 | function. */ | |
448 | extern void add_filename_language (const char *ext, enum language lang); | |
449 | ||
b15cc25c PA |
450 | extern struct objfile *symbol_file_add (const char *, symfile_add_flags, |
451 | struct section_addr_info *, objfile_flags); | |
7eedccfa | 452 | |
b15cc25c | 453 | extern struct objfile *symbol_file_add_from_bfd (bfd *, const char *, symfile_add_flags, |
eb4556d7 | 454 | struct section_addr_info *, |
b15cc25c | 455 | objfile_flags, struct objfile *parent); |
eb4556d7 | 456 | |
b15cc25c | 457 | extern void symbol_file_add_separate (bfd *, const char *, symfile_add_flags, |
24ba069a | 458 | struct objfile *); |
9cce227f | 459 | |
15d123c9 | 460 | extern char *find_separate_debug_file_by_debuglink (struct objfile *); |
9cce227f | 461 | |
a39a16c4 MM |
462 | /* Create a new section_addr_info, with room for NUM_SECTIONS. */ |
463 | ||
3a6c3343 AC |
464 | extern struct section_addr_info *alloc_section_addr_info (size_t |
465 | num_sections); | |
a39a16c4 | 466 | |
3a6c3343 AC |
467 | /* Build (allocate and populate) a section_addr_info struct from an |
468 | existing section table. */ | |
62557bbc | 469 | |
3a6c3343 | 470 | extern struct section_addr_info |
0542c86d | 471 | *build_section_addr_info_from_section_table (const struct target_section |
3a6c3343 | 472 | *start, |
0542c86d | 473 | const struct target_section |
3a6c3343 | 474 | *end); |
62557bbc | 475 | |
3a6c3343 AC |
476 | /* Free all memory allocated by |
477 | build_section_addr_info_from_section_table. */ | |
62557bbc | 478 | |
570b8f7c | 479 | extern void free_section_addr_info (struct section_addr_info *); |
62557bbc KB |
480 | |
481 | ||
c906108c SS |
482 | /* Variables */ |
483 | ||
b7209cb4 FF |
484 | /* If non-zero, shared library symbols will be added automatically |
485 | when the inferior is created, new libraries are loaded, or when | |
486 | attaching to the inferior. This is almost always what users will | |
487 | want to have happen; but for very large programs, the startup time | |
488 | will be excessive, and so if this is a problem, the user can clear | |
489 | this flag and then add the shared library symbols as needed. Note | |
490 | that there is a potential for confusion, since if the shared | |
491 | library symbols are not loaded, commands like "info fun" will *not* | |
3a6c3343 | 492 | report all the functions that are actually present. */ |
c906108c | 493 | |
b7209cb4 | 494 | extern int auto_solib_add; |
c906108c | 495 | |
c906108c SS |
496 | /* From symfile.c */ |
497 | ||
8b60591b JB |
498 | extern void set_initial_language (void); |
499 | ||
4efb68b1 | 500 | extern void find_lowest_section (bfd *, asection *, void *); |
c906108c | 501 | |
69150c3d | 502 | extern bfd *symfile_bfd_open (const char *); |
c906108c | 503 | |
e2f6d8e5 JB |
504 | extern int get_section_index (struct objfile *, char *); |
505 | ||
770e7fc7 DE |
506 | extern int print_symbol_loading_p (int from_tty, int mainline, int full); |
507 | ||
c906108c | 508 | /* Utility functions for overlay sections: */ |
3a6c3343 AC |
509 | extern enum overlay_debugging_state |
510 | { | |
511 | ovly_off, | |
512 | ovly_on, | |
d874f1e2 MS |
513 | ovly_auto |
514 | } overlay_debugging; | |
c906108c SS |
515 | extern int overlay_cache_invalid; |
516 | ||
3a6c3343 | 517 | /* Return the "mapped" overlay section containing the PC. */ |
714835d5 | 518 | extern struct obj_section *find_pc_mapped_section (CORE_ADDR); |
c906108c | 519 | |
3a6c3343 AC |
520 | /* Return any overlay section containing the PC (even in its LMA |
521 | region). */ | |
714835d5 | 522 | extern struct obj_section *find_pc_overlay (CORE_ADDR); |
c906108c | 523 | |
3a6c3343 | 524 | /* Return true if the section is an overlay. */ |
714835d5 | 525 | extern int section_is_overlay (struct obj_section *); |
c906108c | 526 | |
3a6c3343 | 527 | /* Return true if the overlay section is currently "mapped". */ |
714835d5 | 528 | extern int section_is_mapped (struct obj_section *); |
c906108c | 529 | |
3a6c3343 | 530 | /* Return true if pc belongs to section's VMA. */ |
714835d5 | 531 | extern CORE_ADDR pc_in_mapped_range (CORE_ADDR, struct obj_section *); |
c906108c | 532 | |
3a6c3343 | 533 | /* Return true if pc belongs to section's LMA. */ |
714835d5 | 534 | extern CORE_ADDR pc_in_unmapped_range (CORE_ADDR, struct obj_section *); |
c906108c | 535 | |
3a6c3343 | 536 | /* Map an address from a section's LMA to its VMA. */ |
714835d5 | 537 | extern CORE_ADDR overlay_mapped_address (CORE_ADDR, struct obj_section *); |
c906108c | 538 | |
3a6c3343 | 539 | /* Map an address from a section's VMA to its LMA. */ |
714835d5 | 540 | extern CORE_ADDR overlay_unmapped_address (CORE_ADDR, struct obj_section *); |
c906108c | 541 | |
3a6c3343 | 542 | /* Convert an address in an overlay section (force into VMA range). */ |
714835d5 | 543 | extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, struct obj_section *); |
c906108c | 544 | |
3a6c3343 | 545 | /* Load symbols from a file. */ |
ecf45d2c SL |
546 | extern void symbol_file_add_main (const char *args, |
547 | symfile_add_flags add_flags); | |
1adeb98a | 548 | |
3a6c3343 | 549 | /* Clear GDB symbol tables. */ |
1adeb98a FN |
550 | extern void symbol_file_clear (int from_tty); |
551 | ||
1c772458 UW |
552 | /* Default overlay update function. */ |
553 | extern void simple_overlay_update (struct obj_section *); | |
554 | ||
ac8035ab TG |
555 | extern bfd_byte *symfile_relocate_debug_section (struct objfile *, asection *, |
556 | bfd_byte *); | |
086df311 | 557 | |
31d99776 | 558 | extern int symfile_map_offsets_to_segments (bfd *, |
3189cb12 | 559 | const struct symfile_segment_data *, |
31d99776 DJ |
560 | struct section_offsets *, |
561 | int, const CORE_ADDR *); | |
562 | struct symfile_segment_data *get_symfile_segment_data (bfd *abfd); | |
563 | void free_symfile_segment_data (struct symfile_segment_data *data); | |
564 | ||
ccefe4c4 TT |
565 | extern struct cleanup *increment_reading_symtab (void); |
566 | ||
bb4142cf DE |
567 | void expand_symtabs_matching (expand_symtabs_file_matcher_ftype *, |
568 | expand_symtabs_symbol_matcher_ftype *, | |
276d885b | 569 | expand_symtabs_exp_notify_ftype *, |
bb4142cf | 570 | enum search_domain kind, void *data); |
540c2971 | 571 | |
bb4142cf DE |
572 | void map_symbol_filenames (symbol_filename_ftype *fun, void *data, |
573 | int need_fullname); | |
540c2971 | 574 | |
c906108c SS |
575 | /* From dwarf2read.c */ |
576 | ||
251d32d9 TG |
577 | /* Names for a dwarf2 debugging section. The field NORMAL is the normal |
578 | section name (usually from the DWARF standard), while the field COMPRESSED | |
579 | is the name of compressed sections. If your object file format doesn't | |
580 | support compressed sections, the field COMPRESSED can be NULL. Likewise, | |
581 | the debugging section is not supported, the field NORMAL can be NULL too. | |
582 | It doesn't make sense to have a NULL NORMAL field but a non-NULL COMPRESSED | |
583 | field. */ | |
584 | ||
585 | struct dwarf2_section_names { | |
586 | const char *normal; | |
587 | const char *compressed; | |
588 | }; | |
589 | ||
590 | /* List of names for dward2 debugging sections. Also most object file formats | |
591 | use the standardized (ie ELF) names, some (eg XCOFF) have customized names | |
592 | due to restrictions. | |
593 | The table for the standard names is defined in dwarf2read.c. Please | |
594 | update all instances of dwarf2_debug_sections if you add a field to this | |
595 | structure. It is always safe to use { NULL, NULL } in this case. */ | |
596 | ||
597 | struct dwarf2_debug_sections { | |
598 | struct dwarf2_section_names info; | |
599 | struct dwarf2_section_names abbrev; | |
600 | struct dwarf2_section_names line; | |
601 | struct dwarf2_section_names loc; | |
602 | struct dwarf2_section_names macinfo; | |
cf2c3c16 | 603 | struct dwarf2_section_names macro; |
251d32d9 TG |
604 | struct dwarf2_section_names str; |
605 | struct dwarf2_section_names ranges; | |
606 | struct dwarf2_section_names types; | |
3019eac3 | 607 | struct dwarf2_section_names addr; |
251d32d9 TG |
608 | struct dwarf2_section_names frame; |
609 | struct dwarf2_section_names eh_frame; | |
610 | struct dwarf2_section_names gdb_index; | |
24d3216f TT |
611 | /* This field has no meaning, but exists solely to catch changes to |
612 | this structure which are not reflected in some instance. */ | |
613 | int sentinel; | |
251d32d9 TG |
614 | }; |
615 | ||
616 | extern int dwarf2_has_info (struct objfile *, | |
617 | const struct dwarf2_debug_sections *); | |
c906108c | 618 | |
3017a003 TG |
619 | /* Dwarf2 sections that can be accessed by dwarf2_get_section_info. */ |
620 | enum dwarf2_section_enum { | |
621 | DWARF2_DEBUG_FRAME, | |
622 | DWARF2_EH_FRAME | |
623 | }; | |
624 | ||
625 | extern void dwarf2_get_section_info (struct objfile *, | |
626 | enum dwarf2_section_enum, | |
d521ce57 | 627 | asection **, const gdb_byte **, |
3017a003 TG |
628 | bfd_size_type *); |
629 | ||
9291a0cd | 630 | extern int dwarf2_initialize_objfile (struct objfile *); |
f29dff0a | 631 | extern void dwarf2_build_psymtabs (struct objfile *); |
b6af0555 | 632 | extern void dwarf2_build_frame_info (struct objfile *); |
d4f3574e | 633 | |
fe3e1990 DJ |
634 | void dwarf2_free_objfile (struct objfile *); |
635 | ||
c906108c SS |
636 | /* From mdebugread.c */ |
637 | ||
8dddcb8f TT |
638 | extern void mdebug_build_psymtabs (minimal_symbol_reader &, |
639 | struct objfile *, | |
3a6c3343 AC |
640 | const struct ecoff_debug_swap *, |
641 | struct ecoff_debug_info *); | |
642 | ||
643 | extern void elfmdebug_build_psymtabs (struct objfile *, | |
644 | const struct ecoff_debug_swap *, | |
645 | asection *); | |
c906108c | 646 | |
608e2dbb TT |
647 | /* From minidebug.c. */ |
648 | ||
649 | extern bfd *find_separate_debug_file_in_section (struct objfile *); | |
650 | ||
c5aa993b | 651 | #endif /* !defined(SYMFILE_H) */ |