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c906108c | 1 | /* Definitions for reading symbol files into GDB. |
3a6c3343 | 2 | |
6aba47ca | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
4c38e0a4 | 4 | 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009, 2010 |
0fb0cc75 | 5 | Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #if !defined (SYMFILE_H) | |
23 | #define SYMFILE_H | |
24 | ||
25 | /* This file requires that you first include "bfd.h". */ | |
16708cba | 26 | #include "symtab.h" |
c906108c | 27 | |
63ca651f | 28 | /* Opaque declarations. */ |
0542c86d | 29 | struct target_section; |
da3331ec | 30 | struct objfile; |
1c772458 | 31 | struct obj_section; |
63ca651f | 32 | struct obstack; |
fe898f56 | 33 | struct block; |
63ca651f | 34 | |
3a6c3343 AC |
35 | /* Partial symbols are stored in the psymbol_cache and pointers to |
36 | them are kept in a dynamically grown array that is obtained from | |
37 | malloc and grown as necessary via realloc. Each objfile typically | |
38 | has two of these, one for global symbols and one for static | |
39 | symbols. Although this adds a level of indirection for storing or | |
40 | accessing the partial symbols, it allows us to throw away duplicate | |
41 | psymbols and set all pointers to the single saved instance. */ | |
c906108c | 42 | |
c5aa993b | 43 | struct psymbol_allocation_list |
3a6c3343 | 44 | { |
c906108c | 45 | |
3a6c3343 AC |
46 | /* Pointer to beginning of dynamically allocated array of pointers |
47 | to partial symbols. The array is dynamically expanded as | |
48 | necessary to accommodate more pointers. */ | |
c906108c | 49 | |
3a6c3343 | 50 | struct partial_symbol **list; |
c906108c | 51 | |
3a6c3343 AC |
52 | /* Pointer to next available slot in which to store a pointer to a |
53 | partial symbol. */ | |
c906108c | 54 | |
3a6c3343 | 55 | struct partial_symbol **next; |
c906108c | 56 | |
3a6c3343 AC |
57 | /* Number of allocated pointer slots in current dynamic array (not |
58 | the number of bytes of storage). The "next" pointer will always | |
59 | point somewhere between list[0] and list[size], and when at | |
60 | list[size] the array will be expanded on the next attempt to | |
61 | store a pointer. */ | |
c906108c | 62 | |
3a6c3343 AC |
63 | int size; |
64 | }; | |
c906108c | 65 | |
62557bbc KB |
66 | /* Define an array of addresses to accommodate non-contiguous dynamic |
67 | loading of modules. This is for use when entering commands, so we | |
3a6c3343 AC |
68 | can keep track of the section names until we read the file and can |
69 | map them to bfd sections. This structure is also used by solib.c | |
70 | to communicate the section addresses in shared objects to | |
71 | symbol_file_add (). */ | |
72 | ||
73 | struct section_addr_info | |
62557bbc | 74 | { |
a39a16c4 MM |
75 | /* The number of sections for which address information is |
76 | available. */ | |
77 | size_t num_sections; | |
9d8a64cb | 78 | /* Sections whose names are file format dependent. */ |
62557bbc KB |
79 | struct other_sections |
80 | { | |
81 | CORE_ADDR addr; | |
82 | char *name; | |
672d9c23 JK |
83 | |
84 | /* SECTINDEX must be valid for associated BFD if ADDR is not zero. */ | |
62557bbc | 85 | int sectindex; |
a39a16c4 | 86 | } other[1]; |
62557bbc KB |
87 | }; |
88 | ||
28c32713 JB |
89 | |
90 | /* A table listing the load segments in a symfile, and which segment | |
91 | each BFD section belongs to. */ | |
31d99776 DJ |
92 | struct symfile_segment_data |
93 | { | |
94 | /* How many segments are present in this file. If there are | |
95 | two, the text segment is the first one and the data segment | |
96 | is the second one. */ | |
97 | int num_segments; | |
98 | ||
99 | /* If NUM_SEGMENTS is greater than zero, the original base address | |
100 | of each segment. */ | |
101 | CORE_ADDR *segment_bases; | |
102 | ||
103 | /* If NUM_SEGMENTS is greater than zero, the memory size of each | |
104 | segment. */ | |
105 | CORE_ADDR *segment_sizes; | |
106 | ||
107 | /* If NUM_SEGMENTS is greater than zero, this is an array of entries | |
28c32713 JB |
108 | recording which segment contains each BFD section. |
109 | SEGMENT_INFO[I] is S+1 if the I'th BFD section belongs to segment | |
110 | S, or zero if it is not in any segment. */ | |
31d99776 DJ |
111 | int *segment_info; |
112 | }; | |
113 | ||
ccefe4c4 TT |
114 | /* The "quick" symbol functions exist so that symbol readers can |
115 | avoiding an initial read of all the symbols. For example, symbol | |
116 | readers might choose to use the "partial symbol table" utilities, | |
117 | which is one implementation of the quick symbol functions. | |
118 | ||
119 | The quick symbol functions are generally opaque: the underlying | |
120 | representation is hidden from the caller. | |
121 | ||
122 | In general, these functions should only look at whatever special | |
123 | index the symbol reader creates -- looking through the symbol | |
124 | tables themselves is handled by generic code. If a function is | |
125 | defined as returning a "symbol table", this means that the function | |
126 | should only return a newly-created symbol table; it should not | |
127 | examine pre-existing ones. | |
128 | ||
129 | The exact list of functions here was determined in an ad hoc way | |
130 | based on gdb's history. */ | |
131 | ||
132 | struct quick_symbol_functions | |
133 | { | |
134 | /* Return true if this objfile has any "partial" symbols | |
135 | available. */ | |
136 | int (*has_symbols) (struct objfile *objfile); | |
137 | ||
138 | /* Return the symbol table for the "last" file appearing in | |
139 | OBJFILE. */ | |
140 | struct symtab *(*find_last_source_symtab) (struct objfile *objfile); | |
141 | ||
142 | /* Forget all cached full file names for OBJFILE. */ | |
143 | void (*forget_cached_source_info) (struct objfile *objfile); | |
144 | ||
145 | /* Look up the symbol table, in OBJFILE, of a source file named | |
146 | NAME. If there is no '/' in the name, a match after a '/' in the | |
147 | symbol table's file name will also work. FULL_PATH is the | |
148 | absolute file name, and REAL_PATH is the same, run through | |
149 | gdb_realpath. | |
150 | ||
151 | If no such symbol table can be found, returns 0. | |
152 | ||
153 | Otherwise, sets *RESULT to the symbol table and returns 1. This | |
154 | might return 1 and set *RESULT to NULL if the requested file is | |
155 | an include file that does not have a symtab of its own. */ | |
156 | int (*lookup_symtab) (struct objfile *objfile, | |
157 | const char *name, | |
158 | const char *full_path, | |
159 | const char *real_path, | |
160 | struct symtab **result); | |
161 | ||
162 | /* Check to see if the symbol is defined in a "partial" symbol table | |
163 | of OBJFILE. KIND should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
164 | depending on whether we want to search global symbols or static | |
165 | symbols. NAME is the name of the symbol to look for. DOMAIN | |
166 | indicates what sort of symbol to search for. | |
167 | ||
168 | Returns the newly-expanded symbol table in which the symbol is | |
169 | defined, or NULL if no such symbol table exists. */ | |
170 | struct symtab *(*lookup_symbol) (struct objfile *objfile, | |
171 | int kind, const char *name, | |
172 | domain_enum domain); | |
173 | ||
174 | /* Print statistics about any indices loaded for OBJFILE. The | |
175 | statistics should be printed to gdb_stdout. This is used for | |
176 | "maint print statistics". */ | |
177 | void (*print_stats) (struct objfile *objfile); | |
178 | ||
179 | /* Dump any indices loaded for OBJFILE. The dump should go to | |
180 | gdb_stdout. This is used for "maint print objfiles". */ | |
181 | void (*dump) (struct objfile *objfile); | |
182 | ||
183 | /* This is called by objfile_relocate to relocate any indices loaded | |
184 | for OBJFILE. */ | |
185 | void (*relocate) (struct objfile *objfile, | |
186 | struct section_offsets *new_offsets, | |
187 | struct section_offsets *delta); | |
188 | ||
189 | /* Find all the symbols in OBJFILE named FUNC_NAME, and ensure that | |
190 | the corresponding symbol tables are loaded. */ | |
191 | void (*expand_symtabs_for_function) (struct objfile *objfile, | |
192 | const char *func_name); | |
193 | ||
194 | /* Read all symbol tables associated with OBJFILE. */ | |
195 | void (*expand_all_symtabs) (struct objfile *objfile); | |
196 | ||
197 | /* Read all symbol tables associated with OBJFILE which have the | |
198 | file name FILENAME. */ | |
199 | void (*expand_symtabs_with_filename) (struct objfile *objfile, | |
200 | const char *filename); | |
201 | ||
202 | /* Return the file name of the file holding the symbol in OBJFILE | |
203 | named NAME. If no such symbol exists in OBJFILE, return NULL. */ | |
204 | char *(*find_symbol_file) (struct objfile *objfile, const char *name); | |
205 | ||
206 | /* This method is specific to Ada. It walks the partial symbol | |
207 | tables of OBJFILE looking for a name match. WILD_MATCH and | |
208 | IS_NAME_SUFFIX are predicate functions that the implementation | |
209 | may call to check for a match. | |
210 | ||
211 | This function is completely ad hoc and new implementations should | |
212 | refer to the psymtab implementation to see what to do. */ | |
213 | void (*map_ada_symtabs) (struct objfile *objfile, | |
214 | int (*wild_match) (const char *, int, const char *), | |
215 | int (*is_name_suffix) (const char *), | |
216 | void (*callback) (struct objfile *, | |
217 | struct symtab *, void *), | |
218 | const char *name, int global, | |
219 | domain_enum namespace, int wild, | |
220 | void *data); | |
221 | ||
222 | /* Expand all symbol tables in OBJFILE matching some criteria. | |
223 | ||
224 | FILE_MATCHER is called for each file in OBJFILE. The file name | |
225 | and the DATA argument are passed to it. If it returns zero, this | |
226 | file is skipped. | |
227 | ||
228 | Otherwise, if the file is not skipped, then NAME_MATCHER is | |
229 | called for each symbol defined in the file. The symbol's | |
230 | "natural" name and DATA are passed to NAME_MATCHER. | |
231 | ||
232 | If NAME_MATCHER returns zero, then this symbol is skipped. | |
233 | ||
234 | Otherwise, if this symbol is not skipped, and it matches KIND, | |
235 | then this symbol's symbol table is expanded. | |
236 | ||
237 | DATA is user data that is passed unmodified to the callback | |
238 | functions. */ | |
239 | void (*expand_symtabs_matching) (struct objfile *objfile, | |
240 | int (*file_matcher) (const char *, void *), | |
241 | int (*name_matcher) (const char *, void *), | |
242 | domain_enum kind, | |
243 | void *data); | |
244 | ||
245 | /* Return the symbol table from OBJFILE that contains PC and | |
246 | SECTION. Return NULL if there is no such symbol table. This | |
247 | should return the symbol table that contains a symbol whose | |
248 | address exactly matches PC, or, if there is no exact match, the | |
249 | symbol table that contains a symbol whose address is closest to | |
250 | PC. */ | |
251 | struct symtab *(*find_pc_sect_symtab) (struct objfile *objfile, | |
252 | struct minimal_symbol *msymbol, | |
253 | CORE_ADDR pc, | |
254 | struct obj_section *section, | |
255 | int warn_if_readin); | |
256 | ||
257 | /* Call a callback for every symbol defined in OBJFILE. FUN is the | |
258 | callback. It is passed the symbol's natural name, and the DATA | |
259 | passed to this function. */ | |
260 | void (*map_symbol_names) (struct objfile *objfile, | |
261 | void (*fun) (const char *, void *), | |
262 | void *data); | |
263 | ||
264 | /* Call a callback for every file defined in OBJFILE. FUN is the | |
265 | callback. It is passed the file's name, the file's full name, | |
266 | and the DATA passed to this function. */ | |
267 | void (*map_symbol_filenames) (struct objfile *objfile, | |
268 | void (*fun) (const char *, const char *, | |
269 | void *), | |
270 | void *data); | |
271 | }; | |
272 | ||
c906108c SS |
273 | /* Structure to keep track of symbol reading functions for various |
274 | object file types. */ | |
275 | ||
c5aa993b | 276 | struct sym_fns |
3a6c3343 | 277 | { |
c906108c | 278 | |
3a6c3343 AC |
279 | /* BFD flavour that we handle, or (as a special kludge, see |
280 | xcoffread.c, (enum bfd_flavour)-1 for xcoff). */ | |
c906108c | 281 | |
3a6c3343 | 282 | enum bfd_flavour sym_flavour; |
c906108c | 283 | |
3a6c3343 AC |
284 | /* Initializes anything that is global to the entire symbol table. |
285 | It is called during symbol_file_add, when we begin debugging an | |
286 | entirely new program. */ | |
c906108c | 287 | |
3a6c3343 | 288 | void (*sym_new_init) (struct objfile *); |
c906108c | 289 | |
3a6c3343 AC |
290 | /* Reads any initial information from a symbol file, and initializes |
291 | the struct sym_fns SF in preparation for sym_read(). It is | |
292 | called every time we read a symbol file for any reason. */ | |
c906108c | 293 | |
3a6c3343 | 294 | void (*sym_init) (struct objfile *); |
c906108c | 295 | |
f4352531 | 296 | /* sym_read (objfile, symfile_flags) Reads a symbol file into a psymtab |
3a6c3343 | 297 | (or possibly a symtab). OBJFILE is the objfile struct for the |
f4352531 TG |
298 | file we are reading. SYMFILE_FLAGS are the flags passed to |
299 | symbol_file_add & co. */ | |
c906108c | 300 | |
3a6c3343 | 301 | void (*sym_read) (struct objfile *, int); |
c906108c | 302 | |
3a6c3343 AC |
303 | /* Called when we are finished with an objfile. Should do all |
304 | cleanup that is specific to the object file format for the | |
305 | particular objfile. */ | |
c906108c | 306 | |
3a6c3343 | 307 | void (*sym_finish) (struct objfile *); |
c906108c | 308 | |
3a6c3343 AC |
309 | /* This function produces a file-dependent section_offsets |
310 | structure, allocated in the objfile's storage, and based on the | |
311 | parameter. The parameter is currently a CORE_ADDR (FIXME!) for | |
312 | backward compatibility with the higher levels of GDB. It should | |
313 | probably be changed to a string, where NULL means the default, | |
314 | and others are parsed in a file dependent way. */ | |
c906108c | 315 | |
3a6c3343 | 316 | void (*sym_offsets) (struct objfile *, struct section_addr_info *); |
c906108c | 317 | |
31d99776 DJ |
318 | /* This function produces a format-independent description of |
319 | the segments of ABFD. Each segment is a unit of the file | |
320 | which may be relocated independently. */ | |
321 | ||
322 | struct symfile_segment_data *(*sym_segments) (bfd *abfd); | |
323 | ||
c295b2e5 JB |
324 | /* This function should read the linetable from the objfile when |
325 | the line table cannot be read while processing the debugging | |
326 | information. */ | |
ac8035ab | 327 | |
c295b2e5 JB |
328 | void (*sym_read_linetable) (void); |
329 | ||
ac8035ab TG |
330 | /* Relocate the contents of a debug section SECTP. The |
331 | contents are stored in BUF if it is non-NULL, or returned in a | |
332 | malloc'd buffer otherwise. */ | |
333 | ||
334 | bfd_byte *(*sym_relocate) (struct objfile *, asection *sectp, bfd_byte *buf); | |
335 | ||
ccefe4c4 TT |
336 | /* The "quick" (aka partial) symbol functions for this symbol |
337 | reader. */ | |
338 | const struct quick_symbol_functions *qf; | |
339 | ||
3a6c3343 AC |
340 | /* Finds the next struct sym_fns. They are allocated and |
341 | initialized in whatever module implements the functions pointed | |
342 | to; an initializer calls add_symtab_fns to add them to the global | |
343 | chain. */ | |
c906108c | 344 | |
3a6c3343 | 345 | struct sym_fns *next; |
c5aa993b | 346 | |
3a6c3343 | 347 | }; |
c906108c | 348 | |
567995e1 JK |
349 | extern struct section_addr_info * |
350 | build_section_addr_info_from_objfile (const struct objfile *objfile); | |
351 | ||
75242ef4 JK |
352 | extern void relative_addr_info_to_section_offsets |
353 | (struct section_offsets *section_offsets, int num_sections, | |
354 | struct section_addr_info *addrs); | |
355 | ||
356 | extern void addr_info_make_relative (struct section_addr_info *addrs, | |
357 | bfd *abfd); | |
358 | ||
c906108c SS |
359 | /* The default version of sym_fns.sym_offsets for readers that don't |
360 | do anything special. */ | |
361 | ||
570b8f7c AC |
362 | extern void default_symfile_offsets (struct objfile *objfile, |
363 | struct section_addr_info *); | |
c906108c | 364 | |
31d99776 DJ |
365 | /* The default version of sym_fns.sym_segments for readers that don't |
366 | do anything special. */ | |
367 | ||
368 | extern struct symfile_segment_data *default_symfile_segments (bfd *abfd); | |
c906108c | 369 | |
ac8035ab TG |
370 | /* The default version of sym_fns.sym_relocate for readers that don't |
371 | do anything special. */ | |
372 | ||
373 | extern bfd_byte *default_symfile_relocate (struct objfile *objfile, | |
374 | asection *sectp, bfd_byte *buf); | |
375 | ||
570b8f7c AC |
376 | extern void extend_psymbol_list (struct psymbol_allocation_list *, |
377 | struct objfile *); | |
c906108c | 378 | |
3a6c3343 | 379 | /* Add any kind of symbol to a psymbol_allocation_list. */ |
c906108c SS |
380 | |
381 | /* #include "demangle.h" */ | |
382 | ||
5c4e30ca | 383 | extern const |
04a679b8 | 384 | struct partial_symbol *add_psymbol_to_list (char *, int, int, domain_enum, |
5c4e30ca DC |
385 | enum address_class, |
386 | struct psymbol_allocation_list *, | |
387 | long, CORE_ADDR, | |
388 | enum language, struct objfile *); | |
c906108c | 389 | |
a14ed312 | 390 | extern void init_psymbol_list (struct objfile *, int); |
c906108c | 391 | |
a14ed312 | 392 | extern struct symtab *allocate_symtab (char *, struct objfile *); |
c906108c | 393 | |
a14ed312 | 394 | extern void add_symtab_fns (struct sym_fns *); |
c906108c | 395 | |
7eedccfa PP |
396 | /* This enum encodes bit-flags passed as ADD_FLAGS parameter to |
397 | syms_from_objfile, symbol_file_add, etc. */ | |
398 | ||
399 | enum symfile_add_flags | |
400 | { | |
401 | /* Be chatty about what you are doing. */ | |
402 | SYMFILE_VERBOSE = 1 << 1, | |
403 | ||
404 | /* This is the main symbol file (as opposed to symbol file for dynamically | |
405 | loaded code). */ | |
406 | SYMFILE_MAINLINE = 1 << 2, | |
407 | ||
408 | /* Do not call breakpoint_re_set when adding this symbol file. */ | |
409 | SYMFILE_DEFER_BP_RESET = 1 << 3 | |
410 | }; | |
411 | ||
7e8580c1 | 412 | extern void syms_from_objfile (struct objfile *, |
3a6c3343 | 413 | struct section_addr_info *, |
7eedccfa | 414 | struct section_offsets *, int, int); |
c906108c | 415 | |
7eedccfa | 416 | extern void new_symfile_objfile (struct objfile *, int); |
c906108c | 417 | |
a14ed312 | 418 | extern struct objfile *symbol_file_add (char *, int, |
7eedccfa | 419 | struct section_addr_info *, int); |
62557bbc | 420 | |
eb4556d7 JB |
421 | extern struct objfile *symbol_file_add_from_bfd (bfd *, int, |
422 | struct section_addr_info *, | |
7eedccfa | 423 | int); |
eb4556d7 | 424 | |
15d123c9 | 425 | extern void symbol_file_add_separate (bfd *, int, struct objfile *); |
9cce227f | 426 | |
15d123c9 | 427 | extern char *find_separate_debug_file_by_debuglink (struct objfile *); |
9cce227f | 428 | |
a39a16c4 MM |
429 | /* Create a new section_addr_info, with room for NUM_SECTIONS. */ |
430 | ||
3a6c3343 AC |
431 | extern struct section_addr_info *alloc_section_addr_info (size_t |
432 | num_sections); | |
a39a16c4 | 433 | |
3a6c3343 AC |
434 | /* Build (allocate and populate) a section_addr_info struct from an |
435 | existing section table. */ | |
62557bbc | 436 | |
3a6c3343 | 437 | extern struct section_addr_info |
0542c86d | 438 | *build_section_addr_info_from_section_table (const struct target_section |
3a6c3343 | 439 | *start, |
0542c86d | 440 | const struct target_section |
3a6c3343 | 441 | *end); |
62557bbc | 442 | |
3a6c3343 AC |
443 | /* Free all memory allocated by |
444 | build_section_addr_info_from_section_table. */ | |
62557bbc | 445 | |
570b8f7c | 446 | extern void free_section_addr_info (struct section_addr_info *); |
62557bbc KB |
447 | |
448 | ||
a14ed312 KB |
449 | extern struct partial_symtab *start_psymtab_common (struct objfile *, |
450 | struct section_offsets *, | |
d85a05f0 | 451 | const char *, CORE_ADDR, |
a14ed312 KB |
452 | struct partial_symbol **, |
453 | struct partial_symbol **); | |
c906108c | 454 | |
3a6c3343 AC |
455 | /* Make a copy of the string at PTR with SIZE characters in the symbol |
456 | obstack (and add a null character at the end in the copy). Returns | |
457 | the address of the copy. */ | |
c906108c | 458 | |
63ca651f | 459 | extern char *obsavestring (const char *, int, struct obstack *); |
c906108c | 460 | |
3a6c3343 | 461 | /* Concatenate strings S1, S2 and S3; return the new string. Space is |
4a146b47 | 462 | found in the OBSTACKP */ |
c906108c | 463 | |
a14ed312 KB |
464 | extern char *obconcat (struct obstack *obstackp, const char *, const char *, |
465 | const char *); | |
c906108c SS |
466 | |
467 | /* Variables */ | |
468 | ||
b7209cb4 FF |
469 | /* If non-zero, shared library symbols will be added automatically |
470 | when the inferior is created, new libraries are loaded, or when | |
471 | attaching to the inferior. This is almost always what users will | |
472 | want to have happen; but for very large programs, the startup time | |
473 | will be excessive, and so if this is a problem, the user can clear | |
474 | this flag and then add the shared library symbols as needed. Note | |
475 | that there is a potential for confusion, since if the shared | |
476 | library symbols are not loaded, commands like "info fun" will *not* | |
3a6c3343 | 477 | report all the functions that are actually present. */ |
c906108c | 478 | |
b7209cb4 | 479 | extern int auto_solib_add; |
c906108c | 480 | |
b7209cb4 FF |
481 | /* For systems that support it, a threshold size in megabytes. If |
482 | automatically adding a new library's symbol table to those already | |
483 | known to the debugger would cause the total shared library symbol | |
484 | size to exceed this threshhold, then the shlib's symbols are not | |
485 | added. The threshold is ignored if the user explicitly asks for a | |
3a6c3343 | 486 | shlib to be added, such as when using the "sharedlibrary" command. */ |
c906108c | 487 | |
b7209cb4 | 488 | extern int auto_solib_limit; |
c906108c SS |
489 | |
490 | /* From symfile.c */ | |
491 | ||
8b60591b JB |
492 | extern void set_initial_language (void); |
493 | ||
d85a05f0 DJ |
494 | extern struct partial_symtab *allocate_psymtab (const char *, |
495 | struct objfile *); | |
c906108c | 496 | |
a14ed312 | 497 | extern void discard_psymtab (struct partial_symtab *); |
c906108c | 498 | |
4efb68b1 | 499 | extern void find_lowest_section (bfd *, asection *, void *); |
c906108c | 500 | |
a14ed312 | 501 | extern bfd *symfile_bfd_open (char *); |
c906108c | 502 | |
874f5765 TG |
503 | extern bfd *bfd_open_maybe_remote (const char *); |
504 | ||
e2f6d8e5 JB |
505 | extern int get_section_index (struct objfile *, char *); |
506 | ||
c906108c | 507 | /* Utility functions for overlay sections: */ |
3a6c3343 AC |
508 | extern enum overlay_debugging_state |
509 | { | |
510 | ovly_off, | |
511 | ovly_on, | |
d874f1e2 MS |
512 | ovly_auto |
513 | } overlay_debugging; | |
c906108c SS |
514 | extern int overlay_cache_invalid; |
515 | ||
3a6c3343 | 516 | /* Return the "mapped" overlay section containing the PC. */ |
714835d5 | 517 | extern struct obj_section *find_pc_mapped_section (CORE_ADDR); |
c906108c | 518 | |
3a6c3343 AC |
519 | /* Return any overlay section containing the PC (even in its LMA |
520 | region). */ | |
714835d5 | 521 | extern struct obj_section *find_pc_overlay (CORE_ADDR); |
c906108c | 522 | |
3a6c3343 | 523 | /* Return true if the section is an overlay. */ |
714835d5 | 524 | extern int section_is_overlay (struct obj_section *); |
c906108c | 525 | |
3a6c3343 | 526 | /* Return true if the overlay section is currently "mapped". */ |
714835d5 | 527 | extern int section_is_mapped (struct obj_section *); |
c906108c | 528 | |
3a6c3343 | 529 | /* Return true if pc belongs to section's VMA. */ |
714835d5 | 530 | extern CORE_ADDR pc_in_mapped_range (CORE_ADDR, struct obj_section *); |
c906108c | 531 | |
3a6c3343 | 532 | /* Return true if pc belongs to section's LMA. */ |
714835d5 | 533 | extern CORE_ADDR pc_in_unmapped_range (CORE_ADDR, struct obj_section *); |
c906108c | 534 | |
3a6c3343 | 535 | /* Map an address from a section's LMA to its VMA. */ |
714835d5 | 536 | extern CORE_ADDR overlay_mapped_address (CORE_ADDR, struct obj_section *); |
c906108c | 537 | |
3a6c3343 | 538 | /* Map an address from a section's VMA to its LMA. */ |
714835d5 | 539 | extern CORE_ADDR overlay_unmapped_address (CORE_ADDR, struct obj_section *); |
c906108c | 540 | |
3a6c3343 | 541 | /* Convert an address in an overlay section (force into VMA range). */ |
714835d5 | 542 | extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, struct obj_section *); |
c906108c | 543 | |
3a6c3343 | 544 | /* Load symbols from a file. */ |
1adeb98a FN |
545 | extern void symbol_file_add_main (char *args, int from_tty); |
546 | ||
3a6c3343 | 547 | /* Clear GDB symbol tables. */ |
1adeb98a FN |
548 | extern void symbol_file_clear (int from_tty); |
549 | ||
1c772458 UW |
550 | /* Default overlay update function. */ |
551 | extern void simple_overlay_update (struct obj_section *); | |
552 | ||
ac8035ab TG |
553 | extern bfd_byte *symfile_relocate_debug_section (struct objfile *, asection *, |
554 | bfd_byte *); | |
086df311 | 555 | |
31d99776 DJ |
556 | extern int symfile_map_offsets_to_segments (bfd *, |
557 | struct symfile_segment_data *, | |
558 | struct section_offsets *, | |
559 | int, const CORE_ADDR *); | |
560 | struct symfile_segment_data *get_symfile_segment_data (bfd *abfd); | |
561 | void free_symfile_segment_data (struct symfile_segment_data *data); | |
562 | ||
ccefe4c4 TT |
563 | extern struct cleanup *increment_reading_symtab (void); |
564 | ||
c906108c SS |
565 | /* From dwarf2read.c */ |
566 | ||
c5edf76a | 567 | extern int dwarf2_has_info (struct objfile *); |
c906108c | 568 | |
f29dff0a | 569 | extern void dwarf2_build_psymtabs (struct objfile *); |
b6af0555 | 570 | extern void dwarf2_build_frame_info (struct objfile *); |
d4f3574e | 571 | |
fe3e1990 DJ |
572 | void dwarf2_free_objfile (struct objfile *); |
573 | ||
c906108c SS |
574 | /* From mdebugread.c */ |
575 | ||
576 | /* Hack to force structures to exist before use in parameter list. */ | |
577 | struct ecoff_debug_hack | |
3a6c3343 AC |
578 | { |
579 | struct ecoff_debug_swap *a; | |
580 | struct ecoff_debug_info *b; | |
581 | }; | |
582 | ||
583 | extern void mdebug_build_psymtabs (struct objfile *, | |
584 | const struct ecoff_debug_swap *, | |
585 | struct ecoff_debug_info *); | |
586 | ||
587 | extern void elfmdebug_build_psymtabs (struct objfile *, | |
588 | const struct ecoff_debug_swap *, | |
589 | asection *); | |
c906108c | 590 | |
c5aa993b | 591 | #endif /* !defined(SYMFILE_H) */ |