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c906108c | 1 | /* Symbol table definitions for GDB. |
1bac305b | 2 | |
28e7fd62 | 3 | Copyright (C) 1986-2013 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 (SYMTAB_H) | |
21 | #define SYMTAB_H 1 | |
22 | ||
f8eba3c6 | 23 | #include "vec.h" |
49c4e619 | 24 | #include "gdb_vecs.h" |
2f68a895 | 25 | #include "gdbtypes.h" |
f8eba3c6 | 26 | |
5f8a3188 | 27 | /* Opaque declarations. */ |
da3331ec AC |
28 | struct ui_file; |
29 | struct frame_info; | |
30 | struct symbol; | |
5f8a3188 | 31 | struct obstack; |
6a2f5abf | 32 | struct objfile; |
fe898f56 DC |
33 | struct block; |
34 | struct blockvector; | |
4c2df51b DJ |
35 | struct axs_value; |
36 | struct agent_expr; | |
6c95b8df | 37 | struct program_space; |
66a17cb6 | 38 | struct language_defn; |
55aa24fb | 39 | struct probe; |
4357ac6c | 40 | struct common_block; |
c906108c | 41 | |
a7f19c79 MC |
42 | /* Some of the structures in this file are space critical. |
43 | The space-critical structures are: | |
44 | ||
45 | struct general_symbol_info | |
46 | struct symbol | |
47 | struct partial_symbol | |
48 | ||
5bccb4d1 | 49 | These structures are laid out to encourage good packing. |
a7f19c79 MC |
50 | They use ENUM_BITFIELD and short int fields, and they order the |
51 | structure members so that fields less than a word are next | |
c378eb4e | 52 | to each other so they can be packed together. */ |
a7f19c79 MC |
53 | |
54 | /* Rearranged: used ENUM_BITFIELD and rearranged field order in | |
55 | all the space critical structures (plus struct minimal_symbol). | |
56 | Memory usage dropped from 99360768 bytes to 90001408 bytes. | |
57 | I measured this with before-and-after tests of | |
58 | "HEAD-old-gdb -readnow HEAD-old-gdb" and | |
59 | "HEAD-new-gdb -readnow HEAD-old-gdb" on native i686-pc-linux-gnu, | |
60 | red hat linux 8, with LD_LIBRARY_PATH=/usr/lib/debug, | |
61 | typing "maint space 1" at the first command prompt. | |
62 | ||
63 | Here is another measurement (from andrew c): | |
64 | # no /usr/lib/debug, just plain glibc, like a normal user | |
65 | gdb HEAD-old-gdb | |
66 | (gdb) break internal_error | |
67 | (gdb) run | |
68 | (gdb) maint internal-error | |
69 | (gdb) backtrace | |
70 | (gdb) maint space 1 | |
71 | ||
72 | gdb gdb_6_0_branch 2003-08-19 space used: 8896512 | |
73 | gdb HEAD 2003-08-19 space used: 8904704 | |
74 | gdb HEAD 2003-08-21 space used: 8396800 (+symtab.h) | |
75 | gdb HEAD 2003-08-21 space used: 8265728 (+gdbtypes.h) | |
76 | ||
77 | The third line shows the savings from the optimizations in symtab.h. | |
78 | The fourth line shows the savings from the optimizations in | |
79 | gdbtypes.h. Both optimizations are in gdb HEAD now. | |
80 | ||
81 | --chastain 2003-08-21 */ | |
82 | ||
29df156d | 83 | /* Struct for storing C++ specific information. Allocated when needed. */ |
a7f19c79 | 84 | |
29df156d SW |
85 | struct cplus_specific |
86 | { | |
0d5cff50 | 87 | const char *demangled_name; |
29df156d | 88 | }; |
a7f19c79 | 89 | |
c906108c SS |
90 | /* Define a structure for the information that is common to all symbol types, |
91 | including minimal symbols, partial symbols, and full symbols. In a | |
92 | multilanguage environment, some language specific information may need to | |
c378eb4e | 93 | be recorded along with each symbol. */ |
c906108c | 94 | |
c378eb4e | 95 | /* This structure is space critical. See space comments at the top. */ |
c906108c SS |
96 | |
97 | struct general_symbol_info | |
17c5ed2c | 98 | { |
22abf04a | 99 | /* Name of the symbol. This is a required field. Storage for the |
4a146b47 EZ |
100 | name is allocated on the objfile_obstack for the associated |
101 | objfile. For languages like C++ that make a distinction between | |
102 | the mangled name and demangled name, this is the mangled | |
103 | name. */ | |
c906108c | 104 | |
0d5cff50 | 105 | const char *name; |
c906108c | 106 | |
17c5ed2c DC |
107 | /* Value of the symbol. Which member of this union to use, and what |
108 | it means, depends on what kind of symbol this is and its | |
109 | SYMBOL_CLASS. See comments there for more details. All of these | |
110 | are in host byte order (though what they point to might be in | |
111 | target byte order, e.g. LOC_CONST_BYTES). */ | |
c906108c | 112 | |
17c5ed2c DC |
113 | union |
114 | { | |
12df843f | 115 | LONGEST ivalue; |
c906108c | 116 | |
17c5ed2c | 117 | struct block *block; |
c906108c | 118 | |
d47a1bc1 | 119 | const gdb_byte *bytes; |
c906108c | 120 | |
17c5ed2c | 121 | CORE_ADDR address; |
c906108c | 122 | |
5a352474 | 123 | /* A common block. Used with LOC_COMMON_BLOCK. */ |
4357ac6c TT |
124 | |
125 | struct common_block *common_block; | |
126 | ||
c378eb4e | 127 | /* For opaque typedef struct chain. */ |
c906108c | 128 | |
17c5ed2c DC |
129 | struct symbol *chain; |
130 | } | |
131 | value; | |
c906108c | 132 | |
17c5ed2c | 133 | /* Since one and only one language can apply, wrap the language specific |
29df156d | 134 | information inside a union. */ |
c906108c | 135 | |
17c5ed2c DC |
136 | union |
137 | { | |
f85f34ed TT |
138 | /* A pointer to an obstack that can be used for storage associated |
139 | with this symbol. This is only used by Ada, and only when the | |
140 | 'ada_mangled' field is zero. */ | |
141 | struct obstack *obstack; | |
142 | ||
afa16725 | 143 | /* This is used by languages which wish to store a demangled name. |
c378eb4e | 144 | currently used by Ada, Java, and Objective C. */ |
afa16725 | 145 | struct mangled_lang |
17c5ed2c | 146 | { |
0d5cff50 | 147 | const char *demangled_name; |
17c5ed2c | 148 | } |
afa16725 | 149 | mangled_lang; |
29df156d SW |
150 | |
151 | struct cplus_specific *cplus_specific; | |
17c5ed2c DC |
152 | } |
153 | language_specific; | |
c5aa993b | 154 | |
17c5ed2c DC |
155 | /* Record the source code language that applies to this symbol. |
156 | This is used to select one of the fields from the language specific | |
c378eb4e | 157 | union above. */ |
c5aa993b | 158 | |
87193939 | 159 | ENUM_BITFIELD(language) language : 8; |
c5aa993b | 160 | |
f85f34ed TT |
161 | /* This is only used by Ada. If set, then the 'mangled_lang' field |
162 | of language_specific is valid. Otherwise, the 'obstack' field is | |
163 | valid. */ | |
164 | unsigned int ada_mangled : 1; | |
165 | ||
17c5ed2c DC |
166 | /* Which section is this symbol in? This is an index into |
167 | section_offsets for this objfile. Negative means that the symbol | |
e27d198c | 168 | does not get relocated relative to a section. */ |
c5aa993b | 169 | |
17c5ed2c | 170 | short section; |
17c5ed2c | 171 | }; |
c906108c | 172 | |
cfc594ee TT |
173 | extern void symbol_set_demangled_name (struct general_symbol_info *, |
174 | const char *, | |
ccde22c0 | 175 | struct obstack *); |
b250c185 | 176 | |
0d5cff50 DE |
177 | extern const char *symbol_get_demangled_name |
178 | (const struct general_symbol_info *); | |
b250c185 | 179 | |
714835d5 | 180 | extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, struct obj_section *); |
c906108c | 181 | |
88cda038 EZ |
182 | /* Note that all the following SYMBOL_* macros are used with the |
183 | SYMBOL argument being either a partial symbol, a minimal symbol or | |
184 | a full symbol. All three types have a ginfo field. In particular | |
33e5013e | 185 | the SYMBOL_SET_LANGUAGE, SYMBOL_DEMANGLED_NAME, etc. |
d6350901 | 186 | macros cannot be entirely substituted by |
88cda038 EZ |
187 | functions, unless the callers are changed to pass in the ginfo |
188 | field only, instead of the SYMBOL parameter. */ | |
189 | ||
c906108c SS |
190 | #define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.ivalue |
191 | #define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address | |
192 | #define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes | |
4357ac6c | 193 | #define SYMBOL_VALUE_COMMON_BLOCK(symbol) (symbol)->ginfo.value.common_block |
c906108c SS |
194 | #define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block |
195 | #define SYMBOL_VALUE_CHAIN(symbol) (symbol)->ginfo.value.chain | |
196 | #define SYMBOL_LANGUAGE(symbol) (symbol)->ginfo.language | |
197 | #define SYMBOL_SECTION(symbol) (symbol)->ginfo.section | |
e27d198c TT |
198 | #define SYMBOL_OBJ_SECTION(objfile, symbol) \ |
199 | (((symbol)->ginfo.section >= 0) \ | |
200 | ? (&(((objfile)->sections)[(symbol)->ginfo.section])) \ | |
201 | : NULL) | |
c906108c | 202 | |
89aad1f9 | 203 | /* Initializes the language dependent portion of a symbol |
c378eb4e | 204 | depending upon the language for the symbol. */ |
f85f34ed TT |
205 | #define SYMBOL_SET_LANGUAGE(symbol,language,obstack) \ |
206 | (symbol_set_language (&(symbol)->ginfo, (language), (obstack))) | |
33e5013e | 207 | extern void symbol_set_language (struct general_symbol_info *symbol, |
f85f34ed TT |
208 | enum language language, |
209 | struct obstack *obstack); | |
c906108c | 210 | |
3567439c DJ |
211 | /* Set just the linkage name of a symbol; do not try to demangle |
212 | it. Used for constructs which do not have a mangled name, | |
213 | e.g. struct tags. Unlike SYMBOL_SET_NAMES, linkage_name must | |
1c9e8358 TT |
214 | be terminated and either already on the objfile's obstack or |
215 | permanently allocated. */ | |
3567439c DJ |
216 | #define SYMBOL_SET_LINKAGE_NAME(symbol,linkage_name) \ |
217 | (symbol)->ginfo.name = (linkage_name) | |
218 | ||
219 | /* Set the linkage and natural names of a symbol, by demangling | |
220 | the linkage name. */ | |
04a679b8 TT |
221 | #define SYMBOL_SET_NAMES(symbol,linkage_name,len,copy_name,objfile) \ |
222 | symbol_set_names (&(symbol)->ginfo, linkage_name, len, copy_name, objfile) | |
2de7ced7 | 223 | extern void symbol_set_names (struct general_symbol_info *symbol, |
04a679b8 | 224 | const char *linkage_name, int len, int copy_name, |
2de7ced7 DJ |
225 | struct objfile *objfile); |
226 | ||
22abf04a DC |
227 | /* Now come lots of name accessor macros. Short version as to when to |
228 | use which: Use SYMBOL_NATURAL_NAME to refer to the name of the | |
229 | symbol in the original source code. Use SYMBOL_LINKAGE_NAME if you | |
230 | want to know what the linker thinks the symbol's name is. Use | |
231 | SYMBOL_PRINT_NAME for output. Use SYMBOL_DEMANGLED_NAME if you | |
232 | specifically need to know whether SYMBOL_NATURAL_NAME and | |
3567439c | 233 | SYMBOL_LINKAGE_NAME are different. */ |
22abf04a DC |
234 | |
235 | /* Return SYMBOL's "natural" name, i.e. the name that it was called in | |
236 | the original source code. In languages like C++ where symbols may | |
237 | be mangled for ease of manipulation by the linker, this is the | |
238 | demangled name. */ | |
239 | ||
240 | #define SYMBOL_NATURAL_NAME(symbol) \ | |
241 | (symbol_natural_name (&(symbol)->ginfo)) | |
0d5cff50 DE |
242 | extern const char *symbol_natural_name |
243 | (const struct general_symbol_info *symbol); | |
22abf04a DC |
244 | |
245 | /* Return SYMBOL's name from the point of view of the linker. In | |
246 | languages like C++ where symbols may be mangled for ease of | |
247 | manipulation by the linker, this is the mangled name; otherwise, | |
3567439c | 248 | it's the same as SYMBOL_NATURAL_NAME. */ |
22abf04a DC |
249 | |
250 | #define SYMBOL_LINKAGE_NAME(symbol) (symbol)->ginfo.name | |
251 | ||
9cc0d196 | 252 | /* Return the demangled name for a symbol based on the language for |
c378eb4e | 253 | that symbol. If no demangled name exists, return NULL. */ |
9cc0d196 EZ |
254 | #define SYMBOL_DEMANGLED_NAME(symbol) \ |
255 | (symbol_demangled_name (&(symbol)->ginfo)) | |
0d5cff50 DE |
256 | extern const char *symbol_demangled_name |
257 | (const struct general_symbol_info *symbol); | |
c906108c | 258 | |
de5ad195 DC |
259 | /* Macro that returns a version of the name of a symbol that is |
260 | suitable for output. In C++ this is the "demangled" form of the | |
261 | name if demangle is on and the "mangled" form of the name if | |
262 | demangle is off. In other languages this is just the symbol name. | |
263 | The result should never be NULL. Don't use this for internal | |
50f182aa DE |
264 | purposes (e.g. storing in a hashtable): it's only suitable for output. |
265 | ||
266 | N.B. symbol may be anything with a ginfo member, | |
267 | e.g., struct symbol or struct minimal_symbol. */ | |
de5ad195 DC |
268 | |
269 | #define SYMBOL_PRINT_NAME(symbol) \ | |
22abf04a | 270 | (demangle ? SYMBOL_NATURAL_NAME (symbol) : SYMBOL_LINKAGE_NAME (symbol)) |
50f182aa | 271 | extern int demangle; |
c906108c | 272 | |
c378eb4e | 273 | /* Macro that returns the name to be used when sorting and searching symbols. |
4725b721 PH |
274 | In C++, Chill, and Java, we search for the demangled form of a name, |
275 | and so sort symbols accordingly. In Ada, however, we search by mangled | |
276 | name. If there is no distinct demangled name, then SYMBOL_SEARCH_NAME | |
c378eb4e | 277 | returns the same value (same pointer) as SYMBOL_LINKAGE_NAME. */ |
4725b721 PH |
278 | #define SYMBOL_SEARCH_NAME(symbol) \ |
279 | (symbol_search_name (&(symbol)->ginfo)) | |
0d5cff50 | 280 | extern const char *symbol_search_name (const struct general_symbol_info *); |
4725b721 | 281 | |
e9111bf7 DE |
282 | /* Return non-zero if NAME matches the "search" name of SYMBOL. |
283 | Whitespace and trailing parentheses are ignored. | |
284 | See strcmp_iw for details about its behavior. */ | |
4725b721 PH |
285 | #define SYMBOL_MATCHES_SEARCH_NAME(symbol, name) \ |
286 | (strcmp_iw (SYMBOL_SEARCH_NAME (symbol), (name)) == 0) | |
287 | ||
87193939 MC |
288 | /* Classification types for a minimal symbol. These should be taken as |
289 | "advisory only", since if gdb can't easily figure out a | |
290 | classification it simply selects mst_unknown. It may also have to | |
291 | guess when it can't figure out which is a better match between two | |
292 | types (mst_data versus mst_bss) for example. Since the minimal | |
293 | symbol info is sometimes derived from the BFD library's view of a | |
c378eb4e | 294 | file, we need to live with what information bfd supplies. */ |
87193939 MC |
295 | |
296 | enum minimal_symbol_type | |
297 | { | |
298 | mst_unknown = 0, /* Unknown type, the default */ | |
299 | mst_text, /* Generally executable instructions */ | |
0875794a JK |
300 | mst_text_gnu_ifunc, /* Executable code returning address |
301 | of executable code */ | |
302 | mst_slot_got_plt, /* GOT entries for .plt sections */ | |
87193939 MC |
303 | mst_data, /* Generally initialized data */ |
304 | mst_bss, /* Generally uninitialized data */ | |
305 | mst_abs, /* Generally absolute (nonrelocatable) */ | |
306 | /* GDB uses mst_solib_trampoline for the start address of a shared | |
307 | library trampoline entry. Breakpoints for shared library functions | |
308 | are put there if the shared library is not yet loaded. | |
309 | After the shared library is loaded, lookup_minimal_symbol will | |
310 | prefer the minimal symbol from the shared library (usually | |
311 | a mst_text symbol) over the mst_solib_trampoline symbol, and the | |
312 | breakpoints will be moved to their true address in the shared | |
313 | library via breakpoint_re_set. */ | |
314 | mst_solib_trampoline, /* Shared library trampoline code */ | |
315 | /* For the mst_file* types, the names are only guaranteed to be unique | |
316 | within a given .o file. */ | |
317 | mst_file_text, /* Static version of mst_text */ | |
318 | mst_file_data, /* Static version of mst_data */ | |
319 | mst_file_bss /* Static version of mst_bss */ | |
320 | }; | |
321 | ||
c906108c SS |
322 | /* Define a simple structure used to hold some very basic information about |
323 | all defined global symbols (text, data, bss, abs, etc). The only required | |
324 | information is the general_symbol_info. | |
325 | ||
326 | In many cases, even if a file was compiled with no special options for | |
327 | debugging at all, as long as was not stripped it will contain sufficient | |
328 | information to build a useful minimal symbol table using this structure. | |
329 | Even when a file contains enough debugging information to build a full | |
330 | symbol table, these minimal symbols are still useful for quickly mapping | |
331 | between names and addresses, and vice versa. They are also sometimes | |
c378eb4e | 332 | used to figure out what full symbol table entries need to be read in. */ |
c906108c SS |
333 | |
334 | struct minimal_symbol | |
17c5ed2c | 335 | { |
c906108c | 336 | |
17c5ed2c | 337 | /* The general symbol info required for all types of symbols. |
c906108c | 338 | |
17c5ed2c DC |
339 | The SYMBOL_VALUE_ADDRESS contains the address that this symbol |
340 | corresponds to. */ | |
c906108c | 341 | |
17c5ed2c | 342 | struct general_symbol_info ginfo; |
c906108c | 343 | |
f594e5e9 MC |
344 | /* Size of this symbol. end_psymtab in dbxread.c uses this |
345 | information to calculate the end of the partial symtab based on the | |
346 | address of the last symbol plus the size of the last symbol. */ | |
347 | ||
348 | unsigned long size; | |
349 | ||
17c5ed2c | 350 | /* Which source file is this symbol in? Only relevant for mst_file_*. */ |
04aba065 | 351 | const char *filename; |
c906108c | 352 | |
87193939 | 353 | /* Classification type for this minimal symbol. */ |
17c5ed2c | 354 | |
87193939 | 355 | ENUM_BITFIELD(minimal_symbol_type) type : 8; |
17c5ed2c | 356 | |
422d65e7 DE |
357 | /* Non-zero if this symbol was created by gdb. |
358 | Such symbols do not appear in the output of "info var|fun". */ | |
359 | unsigned int created_by_gdb : 1; | |
360 | ||
b887350f TT |
361 | /* Two flag bits provided for the use of the target. */ |
362 | unsigned int target_flag_1 : 1; | |
363 | unsigned int target_flag_2 : 1; | |
364 | ||
d9eaeb59 JB |
365 | /* Nonzero iff the size of the minimal symbol has been set. |
366 | Symbol size information can sometimes not be determined, because | |
367 | the object file format may not carry that piece of information. */ | |
368 | unsigned int has_size : 1; | |
369 | ||
17c5ed2c DC |
370 | /* Minimal symbols with the same hash key are kept on a linked |
371 | list. This is the link. */ | |
372 | ||
373 | struct minimal_symbol *hash_next; | |
374 | ||
375 | /* Minimal symbols are stored in two different hash tables. This is | |
376 | the `next' pointer for the demangled hash table. */ | |
377 | ||
378 | struct minimal_symbol *demangled_hash_next; | |
379 | }; | |
c906108c | 380 | |
b887350f TT |
381 | #define MSYMBOL_TARGET_FLAG_1(msymbol) (msymbol)->target_flag_1 |
382 | #define MSYMBOL_TARGET_FLAG_2(msymbol) (msymbol)->target_flag_2 | |
d9eaeb59 JB |
383 | #define MSYMBOL_SIZE(msymbol) ((msymbol)->size + 0) |
384 | #define SET_MSYMBOL_SIZE(msymbol, sz) \ | |
385 | do \ | |
386 | { \ | |
387 | (msymbol)->size = sz; \ | |
388 | (msymbol)->has_size = 1; \ | |
389 | } while (0) | |
390 | #define MSYMBOL_HAS_SIZE(msymbol) ((msymbol)->has_size + 0) | |
c906108c | 391 | #define MSYMBOL_TYPE(msymbol) (msymbol)->type |
c906108c | 392 | |
c35384fb TT |
393 | #include "minsyms.h" |
394 | ||
c906108c | 395 | \f |
c5aa993b | 396 | |
c906108c SS |
397 | /* Represent one symbol name; a variable, constant, function or typedef. */ |
398 | ||
176620f1 | 399 | /* Different name domains for symbols. Looking up a symbol specifies a |
c378eb4e | 400 | domain and ignores symbol definitions in other name domains. */ |
c906108c | 401 | |
87193939 | 402 | typedef enum domain_enum_tag |
17c5ed2c | 403 | { |
176620f1 | 404 | /* UNDEF_DOMAIN is used when a domain has not been discovered or |
17c5ed2c | 405 | none of the following apply. This usually indicates an error either |
c378eb4e | 406 | in the symbol information or in gdb's handling of symbols. */ |
c906108c | 407 | |
176620f1 | 408 | UNDEF_DOMAIN, |
c906108c | 409 | |
176620f1 | 410 | /* VAR_DOMAIN is the usual domain. In C, this contains variables, |
c378eb4e | 411 | function names, typedef names and enum type values. */ |
c906108c | 412 | |
176620f1 | 413 | VAR_DOMAIN, |
c906108c | 414 | |
176620f1 | 415 | /* STRUCT_DOMAIN is used in C to hold struct, union and enum type names. |
17c5ed2c | 416 | Thus, if `struct foo' is used in a C program, it produces a symbol named |
c378eb4e | 417 | `foo' in the STRUCT_DOMAIN. */ |
c906108c | 418 | |
176620f1 | 419 | STRUCT_DOMAIN, |
c906108c | 420 | |
0f5238ed | 421 | /* LABEL_DOMAIN may be used for names of labels (for gotos). */ |
c906108c | 422 | |
4357ac6c TT |
423 | LABEL_DOMAIN, |
424 | ||
5a352474 JK |
425 | /* Fortran common blocks. Their naming must be separate from VAR_DOMAIN. |
426 | They also always use LOC_COMMON_BLOCK. */ | |
4357ac6c | 427 | COMMON_BLOCK_DOMAIN |
8903c50d | 428 | } domain_enum; |
c906108c | 429 | |
20c681d1 DE |
430 | extern const char *domain_name (domain_enum); |
431 | ||
e8930875 JK |
432 | /* Searching domains, used for `search_symbols'. Element numbers are |
433 | hardcoded in GDB, check all enum uses before changing it. */ | |
c906108c | 434 | |
8903c50d TT |
435 | enum search_domain |
436 | { | |
bd2e94ce TT |
437 | /* Everything in VAR_DOMAIN minus FUNCTIONS_DOMAIN and |
438 | TYPES_DOMAIN. */ | |
e8930875 | 439 | VARIABLES_DOMAIN = 0, |
c906108c | 440 | |
c378eb4e | 441 | /* All functions -- for some reason not methods, though. */ |
e8930875 | 442 | FUNCTIONS_DOMAIN = 1, |
c906108c | 443 | |
17c5ed2c | 444 | /* All defined types */ |
e8930875 | 445 | TYPES_DOMAIN = 2, |
7b08b9eb JK |
446 | |
447 | /* Any type. */ | |
448 | ALL_DOMAIN = 3 | |
8903c50d | 449 | }; |
c906108c | 450 | |
20c681d1 DE |
451 | extern const char *search_domain_name (enum search_domain); |
452 | ||
c906108c SS |
453 | /* An address-class says where to find the value of a symbol. */ |
454 | ||
455 | enum address_class | |
17c5ed2c | 456 | { |
c378eb4e | 457 | /* Not used; catches errors. */ |
c5aa993b | 458 | |
17c5ed2c | 459 | LOC_UNDEF, |
c906108c | 460 | |
c378eb4e | 461 | /* Value is constant int SYMBOL_VALUE, host byteorder. */ |
c906108c | 462 | |
17c5ed2c | 463 | LOC_CONST, |
c906108c | 464 | |
c378eb4e | 465 | /* Value is at fixed address SYMBOL_VALUE_ADDRESS. */ |
c906108c | 466 | |
17c5ed2c | 467 | LOC_STATIC, |
c906108c | 468 | |
768a979c UW |
469 | /* Value is in register. SYMBOL_VALUE is the register number |
470 | in the original debug format. SYMBOL_REGISTER_OPS holds a | |
471 | function that can be called to transform this into the | |
472 | actual register number this represents in a specific target | |
473 | architecture (gdbarch). | |
2a2d4dc3 AS |
474 | |
475 | For some symbol formats (stabs, for some compilers at least), | |
476 | the compiler generates two symbols, an argument and a register. | |
477 | In some cases we combine them to a single LOC_REGISTER in symbol | |
478 | reading, but currently not for all cases (e.g. it's passed on the | |
479 | stack and then loaded into a register). */ | |
c906108c | 480 | |
17c5ed2c | 481 | LOC_REGISTER, |
c906108c | 482 | |
17c5ed2c | 483 | /* It's an argument; the value is at SYMBOL_VALUE offset in arglist. */ |
c906108c | 484 | |
17c5ed2c | 485 | LOC_ARG, |
c906108c | 486 | |
17c5ed2c | 487 | /* Value address is at SYMBOL_VALUE offset in arglist. */ |
c906108c | 488 | |
17c5ed2c | 489 | LOC_REF_ARG, |
c906108c | 490 | |
2a2d4dc3 | 491 | /* Value is in specified register. Just like LOC_REGISTER except the |
17c5ed2c | 492 | register holds the address of the argument instead of the argument |
c378eb4e | 493 | itself. This is currently used for the passing of structs and unions |
17c5ed2c DC |
494 | on sparc and hppa. It is also used for call by reference where the |
495 | address is in a register, at least by mipsread.c. */ | |
c906108c | 496 | |
17c5ed2c | 497 | LOC_REGPARM_ADDR, |
c906108c | 498 | |
17c5ed2c | 499 | /* Value is a local variable at SYMBOL_VALUE offset in stack frame. */ |
c906108c | 500 | |
17c5ed2c | 501 | LOC_LOCAL, |
c906108c | 502 | |
176620f1 EZ |
503 | /* Value not used; definition in SYMBOL_TYPE. Symbols in the domain |
504 | STRUCT_DOMAIN all have this class. */ | |
c906108c | 505 | |
17c5ed2c | 506 | LOC_TYPEDEF, |
c906108c | 507 | |
c378eb4e | 508 | /* Value is address SYMBOL_VALUE_ADDRESS in the code. */ |
c906108c | 509 | |
17c5ed2c | 510 | LOC_LABEL, |
c906108c | 511 | |
17c5ed2c DC |
512 | /* In a symbol table, value is SYMBOL_BLOCK_VALUE of a `struct block'. |
513 | In a partial symbol table, SYMBOL_VALUE_ADDRESS is the start address | |
c378eb4e | 514 | of the block. Function names have this class. */ |
c906108c | 515 | |
17c5ed2c | 516 | LOC_BLOCK, |
c906108c | 517 | |
17c5ed2c DC |
518 | /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_BYTES, in |
519 | target byte order. */ | |
c906108c | 520 | |
17c5ed2c | 521 | LOC_CONST_BYTES, |
c906108c | 522 | |
17c5ed2c DC |
523 | /* Value is at fixed address, but the address of the variable has |
524 | to be determined from the minimal symbol table whenever the | |
525 | variable is referenced. | |
526 | This happens if debugging information for a global symbol is | |
527 | emitted and the corresponding minimal symbol is defined | |
528 | in another object file or runtime common storage. | |
529 | The linker might even remove the minimal symbol if the global | |
530 | symbol is never referenced, in which case the symbol remains | |
de40b933 JK |
531 | unresolved. |
532 | ||
533 | GDB would normally find the symbol in the minimal symbol table if it will | |
534 | not find it in the full symbol table. But a reference to an external | |
535 | symbol in a local block shadowing other definition requires full symbol | |
536 | without possibly having its address available for LOC_STATIC. Testcase | |
537 | is provided as `gdb.dwarf2/dw2-unresolved.exp'. */ | |
c906108c | 538 | |
17c5ed2c | 539 | LOC_UNRESOLVED, |
c906108c | 540 | |
17c5ed2c DC |
541 | /* The variable does not actually exist in the program. |
542 | The value is ignored. */ | |
c906108c | 543 | |
17c5ed2c | 544 | LOC_OPTIMIZED_OUT, |
c906108c | 545 | |
4c2df51b | 546 | /* The variable's address is computed by a set of location |
768a979c | 547 | functions (see "struct symbol_computed_ops" below). */ |
4c2df51b | 548 | LOC_COMPUTED, |
5a352474 JK |
549 | |
550 | /* The variable uses general_symbol_info->value->common_block field. | |
551 | It also always uses COMMON_BLOCK_DOMAIN. */ | |
552 | LOC_COMMON_BLOCK, | |
f1e6e072 TT |
553 | |
554 | /* Not used, just notes the boundary of the enum. */ | |
555 | LOC_FINAL_VALUE | |
4c2df51b DJ |
556 | }; |
557 | ||
768a979c | 558 | /* The methods needed to implement LOC_COMPUTED. These methods can |
a67af2b9 AC |
559 | use the symbol's .aux_value for additional per-symbol information. |
560 | ||
561 | At present this is only used to implement location expressions. */ | |
562 | ||
768a979c | 563 | struct symbol_computed_ops |
4c2df51b DJ |
564 | { |
565 | ||
566 | /* Return the value of the variable SYMBOL, relative to the stack | |
567 | frame FRAME. If the variable has been optimized out, return | |
568 | zero. | |
569 | ||
570 | Iff `read_needs_frame (SYMBOL)' is zero, then FRAME may be zero. */ | |
571 | ||
572 | struct value *(*read_variable) (struct symbol * symbol, | |
573 | struct frame_info * frame); | |
574 | ||
e18b2753 JK |
575 | /* Read variable SYMBOL like read_variable at (callee) FRAME's function |
576 | entry. SYMBOL should be a function parameter, otherwise | |
577 | NO_ENTRY_VALUE_ERROR will be thrown. */ | |
578 | struct value *(*read_variable_at_entry) (struct symbol *symbol, | |
579 | struct frame_info *frame); | |
580 | ||
4c2df51b DJ |
581 | /* Return non-zero if we need a frame to find the value of the SYMBOL. */ |
582 | int (*read_needs_frame) (struct symbol * symbol); | |
583 | ||
584 | /* Write to STREAM a natural-language description of the location of | |
08922a10 SS |
585 | SYMBOL, in the context of ADDR. */ |
586 | void (*describe_location) (struct symbol * symbol, CORE_ADDR addr, | |
587 | struct ui_file * stream); | |
4c2df51b | 588 | |
f1e6e072 TT |
589 | /* Non-zero if this symbol's address computation is dependent on PC. */ |
590 | unsigned char location_has_loclist; | |
591 | ||
4c2df51b DJ |
592 | /* Tracepoint support. Append bytecodes to the tracepoint agent |
593 | expression AX that push the address of the object SYMBOL. Set | |
594 | VALUE appropriately. Note --- for objects in registers, this | |
595 | needn't emit any code; as long as it sets VALUE properly, then | |
596 | the caller will generate the right code in the process of | |
597 | treating this as an lvalue or rvalue. */ | |
598 | ||
505e835d UW |
599 | void (*tracepoint_var_ref) (struct symbol *symbol, struct gdbarch *gdbarch, |
600 | struct agent_expr *ax, struct axs_value *value); | |
17c5ed2c | 601 | }; |
c906108c | 602 | |
f1e6e072 TT |
603 | /* The methods needed to implement LOC_BLOCK for inferior functions. |
604 | These methods can use the symbol's .aux_value for additional | |
605 | per-symbol information. */ | |
606 | ||
607 | struct symbol_block_ops | |
608 | { | |
609 | /* Fill in *START and *LENGTH with DWARF block data of function | |
610 | FRAMEFUNC valid for inferior context address PC. Set *LENGTH to | |
611 | zero if such location is not valid for PC; *START is left | |
612 | uninitialized in such case. */ | |
613 | void (*find_frame_base_location) (struct symbol *framefunc, CORE_ADDR pc, | |
614 | const gdb_byte **start, size_t *length); | |
615 | }; | |
616 | ||
768a979c UW |
617 | /* Functions used with LOC_REGISTER and LOC_REGPARM_ADDR. */ |
618 | ||
619 | struct symbol_register_ops | |
620 | { | |
621 | int (*register_number) (struct symbol *symbol, struct gdbarch *gdbarch); | |
622 | }; | |
623 | ||
f1e6e072 TT |
624 | /* Objects of this type are used to find the address class and the |
625 | various computed ops vectors of a symbol. */ | |
626 | ||
627 | struct symbol_impl | |
628 | { | |
629 | enum address_class aclass; | |
630 | ||
631 | /* Used with LOC_COMPUTED. */ | |
632 | const struct symbol_computed_ops *ops_computed; | |
633 | ||
634 | /* Used with LOC_BLOCK. */ | |
635 | const struct symbol_block_ops *ops_block; | |
636 | ||
637 | /* Used with LOC_REGISTER and LOC_REGPARM_ADDR. */ | |
638 | const struct symbol_register_ops *ops_register; | |
639 | }; | |
640 | ||
641 | /* The number of bits we reserve in a symbol for the aclass index. | |
642 | This is a #define so that we can have a assertion elsewhere to | |
643 | verify that we have reserved enough space for synthetic address | |
644 | classes. */ | |
645 | ||
646 | #define SYMBOL_ACLASS_BITS 6 | |
647 | ||
c378eb4e | 648 | /* This structure is space critical. See space comments at the top. */ |
a7f19c79 | 649 | |
c906108c | 650 | struct symbol |
17c5ed2c | 651 | { |
c906108c | 652 | |
c378eb4e | 653 | /* The general symbol info required for all types of symbols. */ |
c906108c | 654 | |
17c5ed2c | 655 | struct general_symbol_info ginfo; |
c906108c | 656 | |
17c5ed2c | 657 | /* Data type of value */ |
c906108c | 658 | |
17c5ed2c | 659 | struct type *type; |
c906108c | 660 | |
cb1df416 | 661 | /* The symbol table containing this symbol. This is the file |
cd55e50f JK |
662 | associated with LINE. It can be NULL during symbols read-in but it is |
663 | never NULL during normal operation. */ | |
cb1df416 DJ |
664 | struct symtab *symtab; |
665 | ||
176620f1 | 666 | /* Domain code. */ |
c906108c | 667 | |
87193939 | 668 | ENUM_BITFIELD(domain_enum_tag) domain : 6; |
c906108c | 669 | |
f1e6e072 TT |
670 | /* Address class. This holds an index into the 'symbol_impls' |
671 | table. The actual enum address_class value is stored there, | |
672 | alongside any per-class ops vectors. */ | |
c906108c | 673 | |
f1e6e072 | 674 | unsigned int aclass_index : SYMBOL_ACLASS_BITS; |
c906108c | 675 | |
2a2d4dc3 AS |
676 | /* Whether this is an argument. */ |
677 | ||
678 | unsigned is_argument : 1; | |
679 | ||
edb3359d DJ |
680 | /* Whether this is an inlined function (class LOC_BLOCK only). */ |
681 | unsigned is_inlined : 1; | |
682 | ||
34eaf542 TT |
683 | /* True if this is a C++ function symbol with template arguments. |
684 | In this case the symbol is really a "struct template_symbol". */ | |
685 | unsigned is_cplus_template_function : 1; | |
686 | ||
edb3359d DJ |
687 | /* Line number of this symbol's definition, except for inlined |
688 | functions. For an inlined function (class LOC_BLOCK and | |
689 | SYMBOL_INLINED set) this is the line number of the function's call | |
690 | site. Inlined function symbols are not definitions, and they are | |
691 | never found by symbol table lookup. | |
692 | ||
693 | FIXME: Should we really make the assumption that nobody will try | |
694 | to debug files longer than 64K lines? What about machine | |
695 | generated programs? */ | |
c906108c | 696 | |
17c5ed2c | 697 | unsigned short line; |
c906108c | 698 | |
10f4ecb8 UW |
699 | /* An arbitrary data pointer, allowing symbol readers to record |
700 | additional information on a per-symbol basis. Note that this data | |
701 | must be allocated using the same obstack as the symbol itself. */ | |
2a2d4dc3 | 702 | /* So far it is only used by LOC_COMPUTED to |
10f4ecb8 UW |
703 | find the location information. For a LOC_BLOCK symbol |
704 | for a function in a compilation unit compiled with DWARF 2 | |
705 | information, this is information used internally by the DWARF 2 | |
706 | code --- specifically, the location expression for the frame | |
707 | base for this function. */ | |
708 | /* FIXME drow/2003-02-21: For the LOC_BLOCK case, it might be better | |
709 | to add a magic symbol to the block containing this information, | |
710 | or to have a generic debug info annotation slot for symbols. */ | |
711 | ||
712 | void *aux_value; | |
c906108c | 713 | |
17c5ed2c DC |
714 | struct symbol *hash_next; |
715 | }; | |
c906108c | 716 | |
f1e6e072 | 717 | extern const struct symbol_impl *symbol_impls; |
c906108c | 718 | |
176620f1 | 719 | #define SYMBOL_DOMAIN(symbol) (symbol)->domain |
f1e6e072 TT |
720 | #define SYMBOL_IMPL(symbol) (symbol_impls[(symbol)->aclass_index]) |
721 | #define SYMBOL_ACLASS_INDEX(symbol) (symbol)->aclass_index | |
722 | #define SYMBOL_CLASS(symbol) (SYMBOL_IMPL (symbol).aclass) | |
2a2d4dc3 | 723 | #define SYMBOL_IS_ARGUMENT(symbol) (symbol)->is_argument |
edb3359d | 724 | #define SYMBOL_INLINED(symbol) (symbol)->is_inlined |
34eaf542 TT |
725 | #define SYMBOL_IS_CPLUS_TEMPLATE_FUNCTION(symbol) \ |
726 | (symbol)->is_cplus_template_function | |
c906108c SS |
727 | #define SYMBOL_TYPE(symbol) (symbol)->type |
728 | #define SYMBOL_LINE(symbol) (symbol)->line | |
cb1df416 | 729 | #define SYMBOL_SYMTAB(symbol) (symbol)->symtab |
f1e6e072 TT |
730 | #define SYMBOL_COMPUTED_OPS(symbol) (SYMBOL_IMPL (symbol).ops_computed) |
731 | #define SYMBOL_BLOCK_OPS(symbol) (SYMBOL_IMPL (symbol).ops_block) | |
732 | #define SYMBOL_REGISTER_OPS(symbol) (SYMBOL_IMPL (symbol).ops_register) | |
10f4ecb8 | 733 | #define SYMBOL_LOCATION_BATON(symbol) (symbol)->aux_value |
e27d198c | 734 | #define SYMBOL_OBJFILE(symbol) (SYMBOL_SYMTAB (symbol)->objfile) |
34eaf542 | 735 | |
f1e6e072 TT |
736 | extern int register_symbol_computed_impl (enum address_class, |
737 | const struct symbol_computed_ops *); | |
738 | ||
739 | extern int register_symbol_block_impl (enum address_class aclass, | |
740 | const struct symbol_block_ops *ops); | |
741 | ||
742 | extern int register_symbol_register_impl (enum address_class, | |
743 | const struct symbol_register_ops *); | |
744 | ||
34eaf542 TT |
745 | /* An instance of this type is used to represent a C++ template |
746 | function. It includes a "struct symbol" as a kind of base class; | |
747 | users downcast to "struct template_symbol *" when needed. A symbol | |
748 | is really of this type iff SYMBOL_IS_CPLUS_TEMPLATE_FUNCTION is | |
749 | true. */ | |
750 | ||
751 | struct template_symbol | |
752 | { | |
753 | /* The base class. */ | |
754 | struct symbol base; | |
755 | ||
756 | /* The number of template arguments. */ | |
757 | int n_template_arguments; | |
758 | ||
759 | /* The template arguments. This is an array with | |
760 | N_TEMPLATE_ARGUMENTS elements. */ | |
761 | struct symbol **template_arguments; | |
762 | }; | |
763 | ||
c906108c | 764 | \f |
c906108c SS |
765 | /* Each item represents a line-->pc (or the reverse) mapping. This is |
766 | somewhat more wasteful of space than one might wish, but since only | |
767 | the files which are actually debugged are read in to core, we don't | |
768 | waste much space. */ | |
769 | ||
770 | struct linetable_entry | |
17c5ed2c DC |
771 | { |
772 | int line; | |
773 | CORE_ADDR pc; | |
774 | }; | |
c906108c SS |
775 | |
776 | /* The order of entries in the linetable is significant. They should | |
777 | be sorted by increasing values of the pc field. If there is more than | |
778 | one entry for a given pc, then I'm not sure what should happen (and | |
779 | I not sure whether we currently handle it the best way). | |
780 | ||
781 | Example: a C for statement generally looks like this | |
782 | ||
c5aa993b JM |
783 | 10 0x100 - for the init/test part of a for stmt. |
784 | 20 0x200 | |
785 | 30 0x300 | |
786 | 10 0x400 - for the increment part of a for stmt. | |
c906108c | 787 | |
e8717518 FF |
788 | If an entry has a line number of zero, it marks the start of a PC |
789 | range for which no line number information is available. It is | |
790 | acceptable, though wasteful of table space, for such a range to be | |
791 | zero length. */ | |
c906108c SS |
792 | |
793 | struct linetable | |
17c5ed2c DC |
794 | { |
795 | int nitems; | |
c906108c | 796 | |
17c5ed2c DC |
797 | /* Actually NITEMS elements. If you don't like this use of the |
798 | `struct hack', you can shove it up your ANSI (seriously, if the | |
799 | committee tells us how to do it, we can probably go along). */ | |
800 | struct linetable_entry item[1]; | |
801 | }; | |
c906108c | 802 | |
c906108c SS |
803 | /* How to relocate the symbols from each section in a symbol file. |
804 | Each struct contains an array of offsets. | |
805 | The ordering and meaning of the offsets is file-type-dependent; | |
806 | typically it is indexed by section numbers or symbol types or | |
807 | something like that. | |
808 | ||
809 | To give us flexibility in changing the internal representation | |
810 | of these offsets, the ANOFFSET macro must be used to insert and | |
811 | extract offset values in the struct. */ | |
812 | ||
813 | struct section_offsets | |
17c5ed2c | 814 | { |
c378eb4e | 815 | CORE_ADDR offsets[1]; /* As many as needed. */ |
17c5ed2c | 816 | }; |
c906108c | 817 | |
a4c8257b | 818 | #define ANOFFSET(secoff, whichone) \ |
3e43a32a MS |
819 | ((whichone == -1) \ |
820 | ? (internal_error (__FILE__, __LINE__, \ | |
821 | _("Section index is uninitialized")), -1) \ | |
822 | : secoff->offsets[whichone]) | |
c906108c | 823 | |
b29c9944 JB |
824 | /* The size of a section_offsets table for N sections. */ |
825 | #define SIZEOF_N_SECTION_OFFSETS(n) \ | |
c906108c | 826 | (sizeof (struct section_offsets) \ |
b29c9944 JB |
827 | + sizeof (((struct section_offsets *) 0)->offsets) * ((n)-1)) |
828 | ||
c378eb4e | 829 | /* Each source file or header is represented by a struct symtab. |
c906108c SS |
830 | These objects are chained through the `next' field. */ |
831 | ||
832 | struct symtab | |
17c5ed2c | 833 | { |
93b55aa1 | 834 | /* Unordered chain of all existing symtabs of this objfile. */ |
c906108c | 835 | |
17c5ed2c | 836 | struct symtab *next; |
c906108c | 837 | |
17c5ed2c DC |
838 | /* List of all symbol scope blocks for this symtab. May be shared |
839 | between different symtabs (and normally is for all the symtabs | |
840 | in a given compilation unit). */ | |
c906108c | 841 | |
17c5ed2c | 842 | struct blockvector *blockvector; |
c906108c | 843 | |
17c5ed2c DC |
844 | /* Table mapping core addresses to line numbers for this file. |
845 | Can be NULL if none. Never shared between different symtabs. */ | |
c906108c | 846 | |
17c5ed2c | 847 | struct linetable *linetable; |
c906108c | 848 | |
17c5ed2c DC |
849 | /* Section in objfile->section_offsets for the blockvector and |
850 | the linetable. Probably always SECT_OFF_TEXT. */ | |
c906108c | 851 | |
17c5ed2c | 852 | int block_line_section; |
c906108c | 853 | |
17c5ed2c DC |
854 | /* If several symtabs share a blockvector, exactly one of them |
855 | should be designated the primary, so that the blockvector | |
856 | is relocated exactly once by objfile_relocate. */ | |
c906108c | 857 | |
8be455d7 JK |
858 | unsigned int primary : 1; |
859 | ||
860 | /* Symtab has been compiled with both optimizations and debug info so that | |
861 | GDB may stop skipping prologues as variables locations are valid already | |
862 | at function entry points. */ | |
863 | ||
864 | unsigned int locations_valid : 1; | |
c906108c | 865 | |
e0d00bc7 JK |
866 | /* DWARF unwinder for this CU is valid even for epilogues (PC at the return |
867 | instruction). This is supported by GCC since 4.5.0. */ | |
868 | ||
869 | unsigned int epilogue_unwind_valid : 1; | |
870 | ||
17c5ed2c DC |
871 | /* The macro table for this symtab. Like the blockvector, this |
872 | may be shared between different symtabs --- and normally is for | |
873 | all the symtabs in a given compilation unit. */ | |
874 | struct macro_table *macro_table; | |
99d9066e | 875 | |
4e04028d | 876 | /* Name of this source file. This pointer is never NULL. */ |
c906108c | 877 | |
17c5ed2c | 878 | char *filename; |
c906108c | 879 | |
17c5ed2c | 880 | /* Directory in which it was compiled, or NULL if we don't know. */ |
c906108c | 881 | |
17c5ed2c | 882 | char *dirname; |
c906108c | 883 | |
17c5ed2c | 884 | /* Total number of lines found in source file. */ |
c906108c | 885 | |
17c5ed2c | 886 | int nlines; |
c906108c | 887 | |
17c5ed2c DC |
888 | /* line_charpos[N] is the position of the (N-1)th line of the |
889 | source file. "position" means something we can lseek() to; it | |
890 | is not guaranteed to be useful any other way. */ | |
c906108c | 891 | |
17c5ed2c | 892 | int *line_charpos; |
c906108c | 893 | |
17c5ed2c | 894 | /* Language of this source file. */ |
c906108c | 895 | |
17c5ed2c | 896 | enum language language; |
c906108c | 897 | |
17c5ed2c DC |
898 | /* String that identifies the format of the debugging information, such |
899 | as "stabs", "dwarf 1", "dwarf 2", "coff", etc. This is mostly useful | |
900 | for automated testing of gdb but may also be information that is | |
c378eb4e | 901 | useful to the user. */ |
c906108c | 902 | |
554d387d | 903 | const char *debugformat; |
c906108c | 904 | |
303b6f5d | 905 | /* String of producer version information. May be zero. */ |
c906108c | 906 | |
554d387d | 907 | const char *producer; |
c906108c | 908 | |
17c5ed2c DC |
909 | /* Full name of file as found by searching the source path. |
910 | NULL if not yet known. */ | |
c906108c | 911 | |
17c5ed2c | 912 | char *fullname; |
c906108c | 913 | |
17c5ed2c | 914 | /* Object file from which this symbol information was read. */ |
c906108c | 915 | |
17c5ed2c | 916 | struct objfile *objfile; |
c906108c | 917 | |
8e3b41a9 JK |
918 | /* struct call_site entries for this compilation unit or NULL. */ |
919 | ||
920 | htab_t call_site_htab; | |
b5b04b5b TT |
921 | |
922 | /* If non-NULL, then this points to a NULL-terminated vector of | |
923 | included symbol tables. When searching the static or global | |
924 | block of this symbol table, the corresponding block of all | |
925 | included symbol tables will also be searched. Note that this | |
926 | list must be flattened -- the symbol reader is responsible for | |
927 | ensuring that this vector contains the transitive closure of all | |
928 | included symbol tables. */ | |
929 | ||
930 | struct symtab **includes; | |
931 | ||
932 | /* If this is an included symbol table, this points to one includer | |
933 | of the table. This user is considered the canonical symbol table | |
934 | containing this one. An included symbol table may itself be | |
935 | included by another. */ | |
936 | ||
937 | struct symtab *user; | |
17c5ed2c | 938 | }; |
c906108c SS |
939 | |
940 | #define BLOCKVECTOR(symtab) (symtab)->blockvector | |
941 | #define LINETABLE(symtab) (symtab)->linetable | |
6c95b8df | 942 | #define SYMTAB_PSPACE(symtab) (symtab)->objfile->pspace |
ec94af83 DE |
943 | |
944 | typedef struct symtab *symtab_ptr; | |
945 | DEF_VEC_P (symtab_ptr); | |
946 | ||
c906108c | 947 | \f |
c5aa993b | 948 | |
c906108c | 949 | /* The virtual function table is now an array of structures which have the |
a960f249 | 950 | form { int16 offset, delta; void *pfn; }. |
c906108c SS |
951 | |
952 | In normal virtual function tables, OFFSET is unused. | |
953 | DELTA is the amount which is added to the apparent object's base | |
954 | address in order to point to the actual object to which the | |
955 | virtual function should be applied. | |
956 | PFN is a pointer to the virtual function. | |
957 | ||
c378eb4e | 958 | Note that this macro is g++ specific (FIXME). */ |
c5aa993b | 959 | |
c906108c SS |
960 | #define VTBL_FNADDR_OFFSET 2 |
961 | ||
c378eb4e | 962 | /* External variables and functions for the objects described above. */ |
c906108c | 963 | |
c378eb4e | 964 | /* True if we are nested inside psymtab_to_symtab. */ |
c906108c SS |
965 | |
966 | extern int currently_reading_symtab; | |
967 | ||
c906108c SS |
968 | /* symtab.c lookup functions */ |
969 | ||
7fc830e2 MK |
970 | extern const char multiple_symbols_ask[]; |
971 | extern const char multiple_symbols_all[]; | |
972 | extern const char multiple_symbols_cancel[]; | |
717d2f5a JB |
973 | |
974 | const char *multiple_symbols_select_mode (void); | |
975 | ||
5eeb2539 AR |
976 | int symbol_matches_domain (enum language symbol_language, |
977 | domain_enum symbol_domain, | |
978 | domain_enum domain); | |
979 | ||
c378eb4e | 980 | /* lookup a symbol table by source file name. */ |
c906108c | 981 | |
1f8cc6db | 982 | extern struct symtab *lookup_symtab (const char *); |
c906108c | 983 | |
1993b719 TT |
984 | /* An object of this type is passed as the 'is_a_field_of_this' |
985 | argument to lookup_symbol and lookup_symbol_in_language. */ | |
986 | ||
987 | struct field_of_this_result | |
988 | { | |
989 | /* The type in which the field was found. If this is NULL then the | |
990 | symbol was not found in 'this'. If non-NULL, then one of the | |
991 | other fields will be non-NULL as well. */ | |
992 | ||
993 | struct type *type; | |
994 | ||
995 | /* If the symbol was found as an ordinary field of 'this', then this | |
996 | is non-NULL and points to the particular field. */ | |
997 | ||
998 | struct field *field; | |
999 | ||
1000 | /* If the symbol was found as an function field of 'this', then this | |
1001 | is non-NULL and points to the particular field. */ | |
1002 | ||
1003 | struct fn_fieldlist *fn_field; | |
1004 | }; | |
1005 | ||
6c9353d3 | 1006 | /* lookup a symbol by name (optional block) in language. */ |
53c5240f PA |
1007 | |
1008 | extern struct symbol *lookup_symbol_in_language (const char *, | |
1009 | const struct block *, | |
1010 | const domain_enum, | |
1011 | enum language, | |
1993b719 | 1012 | struct field_of_this_result *); |
53c5240f PA |
1013 | |
1014 | /* lookup a symbol by name (optional block, optional symtab) | |
c378eb4e | 1015 | in the current language. */ |
c906108c | 1016 | |
a14ed312 | 1017 | extern struct symbol *lookup_symbol (const char *, const struct block *, |
1993b719 TT |
1018 | const domain_enum, |
1019 | struct field_of_this_result *); | |
c906108c | 1020 | |
5f9a71c3 DC |
1021 | /* A default version of lookup_symbol_nonlocal for use by languages |
1022 | that can't think of anything better to do. */ | |
1023 | ||
1024 | extern struct symbol *basic_lookup_symbol_nonlocal (const char *, | |
5f9a71c3 | 1025 | const struct block *, |
21b556f4 | 1026 | const domain_enum); |
5f9a71c3 DC |
1027 | |
1028 | /* Some helper functions for languages that need to write their own | |
1029 | lookup_symbol_nonlocal functions. */ | |
1030 | ||
1031 | /* Lookup a symbol in the static block associated to BLOCK, if there | |
1032 | is one; do nothing if BLOCK is NULL or a global block. */ | |
1033 | ||
1034 | extern struct symbol *lookup_symbol_static (const char *name, | |
5f9a71c3 | 1035 | const struct block *block, |
21b556f4 | 1036 | const domain_enum domain); |
5f9a71c3 DC |
1037 | |
1038 | /* Lookup a symbol in all files' global blocks (searching psymtabs if | |
1039 | necessary). */ | |
1040 | ||
1041 | extern struct symbol *lookup_symbol_global (const char *name, | |
3a40aaa0 | 1042 | const struct block *block, |
21b556f4 | 1043 | const domain_enum domain); |
5f9a71c3 DC |
1044 | |
1045 | /* Lookup a symbol within the block BLOCK. This, unlike | |
1046 | lookup_symbol_block, will set SYMTAB and BLOCK_FOUND correctly, and | |
1047 | will fix up the symbol if necessary. */ | |
1048 | ||
1049 | extern struct symbol *lookup_symbol_aux_block (const char *name, | |
5f9a71c3 | 1050 | const struct block *block, |
21b556f4 | 1051 | const domain_enum domain); |
5f9a71c3 | 1052 | |
66a17cb6 TT |
1053 | extern struct symbol *lookup_language_this (const struct language_defn *lang, |
1054 | const struct block *block); | |
1055 | ||
41f62f39 JK |
1056 | /* Lookup a symbol only in the file static scope of all the objfiles. */ |
1057 | ||
1058 | struct symbol *lookup_static_symbol_aux (const char *name, | |
1059 | const domain_enum domain); | |
1060 | ||
1061 | ||
c378eb4e | 1062 | /* lookup a symbol by name, within a specified block. */ |
c5aa993b | 1063 | |
a14ed312 | 1064 | extern struct symbol *lookup_block_symbol (const struct block *, const char *, |
176620f1 | 1065 | const domain_enum); |
c906108c | 1066 | |
c378eb4e | 1067 | /* lookup a [struct, union, enum] by name, within a specified block. */ |
c906108c | 1068 | |
270140bd | 1069 | extern struct type *lookup_struct (const char *, const struct block *); |
c906108c | 1070 | |
270140bd | 1071 | extern struct type *lookup_union (const char *, const struct block *); |
c906108c | 1072 | |
270140bd | 1073 | extern struct type *lookup_enum (const char *, const struct block *); |
c906108c | 1074 | |
c906108c SS |
1075 | /* from blockframe.c: */ |
1076 | ||
c378eb4e | 1077 | /* lookup the function symbol corresponding to the address. */ |
c906108c | 1078 | |
a14ed312 | 1079 | extern struct symbol *find_pc_function (CORE_ADDR); |
c906108c | 1080 | |
c378eb4e | 1081 | /* lookup the function corresponding to the address and section. */ |
c906108c | 1082 | |
714835d5 | 1083 | extern struct symbol *find_pc_sect_function (CORE_ADDR, struct obj_section *); |
c5aa993b | 1084 | |
2c02bd72 | 1085 | extern int find_pc_partial_function_gnu_ifunc (CORE_ADDR pc, const char **name, |
11c81455 JK |
1086 | CORE_ADDR *address, |
1087 | CORE_ADDR *endaddr, | |
1088 | int *is_gnu_ifunc_p); | |
1089 | ||
c378eb4e | 1090 | /* lookup function from address, return name, start addr and end addr. */ |
c906108c | 1091 | |
2c02bd72 | 1092 | extern int find_pc_partial_function (CORE_ADDR, const char **, CORE_ADDR *, |
570b8f7c | 1093 | CORE_ADDR *); |
c906108c | 1094 | |
a14ed312 | 1095 | extern void clear_pc_function_cache (void); |
c906108c | 1096 | |
c378eb4e | 1097 | /* lookup partial symbol table by address and section. */ |
c906108c | 1098 | |
ccefe4c4 TT |
1099 | extern struct symtab *find_pc_sect_symtab_via_partial (CORE_ADDR, |
1100 | struct obj_section *); | |
c906108c | 1101 | |
c378eb4e | 1102 | /* lookup full symbol table by address. */ |
c906108c | 1103 | |
a14ed312 | 1104 | extern struct symtab *find_pc_symtab (CORE_ADDR); |
c906108c | 1105 | |
c378eb4e | 1106 | /* lookup full symbol table by address and section. */ |
c906108c | 1107 | |
714835d5 | 1108 | extern struct symtab *find_pc_sect_symtab (CORE_ADDR, struct obj_section *); |
c906108c | 1109 | |
a14ed312 | 1110 | extern int find_pc_line_pc_range (CORE_ADDR, CORE_ADDR *, CORE_ADDR *); |
c906108c | 1111 | |
a14ed312 | 1112 | extern void reread_symbols (void); |
c906108c | 1113 | |
a14ed312 | 1114 | extern struct type *lookup_transparent_type (const char *); |
b368761e | 1115 | extern struct type *basic_lookup_transparent_type (const char *); |
c906108c SS |
1116 | |
1117 | ||
c378eb4e | 1118 | /* Macro for name of symbol to indicate a file compiled with gcc. */ |
c906108c SS |
1119 | #ifndef GCC_COMPILED_FLAG_SYMBOL |
1120 | #define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled." | |
1121 | #endif | |
1122 | ||
c378eb4e | 1123 | /* Macro for name of symbol to indicate a file compiled with gcc2. */ |
c906108c SS |
1124 | #ifndef GCC2_COMPILED_FLAG_SYMBOL |
1125 | #define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled." | |
1126 | #endif | |
1127 | ||
0875794a JK |
1128 | extern int in_gnu_ifunc_stub (CORE_ADDR pc); |
1129 | ||
07be84bf JK |
1130 | /* Functions for resolving STT_GNU_IFUNC symbols which are implemented only |
1131 | for ELF symbol files. */ | |
1132 | ||
1133 | struct gnu_ifunc_fns | |
1134 | { | |
1135 | /* See elf_gnu_ifunc_resolve_addr for its real implementation. */ | |
1136 | CORE_ADDR (*gnu_ifunc_resolve_addr) (struct gdbarch *gdbarch, CORE_ADDR pc); | |
1137 | ||
1138 | /* See elf_gnu_ifunc_resolve_name for its real implementation. */ | |
1139 | int (*gnu_ifunc_resolve_name) (const char *function_name, | |
1140 | CORE_ADDR *function_address_p); | |
0e30163f JK |
1141 | |
1142 | /* See elf_gnu_ifunc_resolver_stop for its real implementation. */ | |
1143 | void (*gnu_ifunc_resolver_stop) (struct breakpoint *b); | |
1144 | ||
1145 | /* See elf_gnu_ifunc_resolver_return_stop for its real implementation. */ | |
1146 | void (*gnu_ifunc_resolver_return_stop) (struct breakpoint *b); | |
07be84bf JK |
1147 | }; |
1148 | ||
1149 | #define gnu_ifunc_resolve_addr gnu_ifunc_fns_p->gnu_ifunc_resolve_addr | |
1150 | #define gnu_ifunc_resolve_name gnu_ifunc_fns_p->gnu_ifunc_resolve_name | |
0e30163f JK |
1151 | #define gnu_ifunc_resolver_stop gnu_ifunc_fns_p->gnu_ifunc_resolver_stop |
1152 | #define gnu_ifunc_resolver_return_stop \ | |
1153 | gnu_ifunc_fns_p->gnu_ifunc_resolver_return_stop | |
07be84bf JK |
1154 | |
1155 | extern const struct gnu_ifunc_fns *gnu_ifunc_fns_p; | |
1156 | ||
52f729a7 | 1157 | extern CORE_ADDR find_solib_trampoline_target (struct frame_info *, CORE_ADDR); |
c906108c | 1158 | |
c906108c | 1159 | struct symtab_and_line |
17c5ed2c | 1160 | { |
6c95b8df PA |
1161 | /* The program space of this sal. */ |
1162 | struct program_space *pspace; | |
1163 | ||
17c5ed2c | 1164 | struct symtab *symtab; |
714835d5 | 1165 | struct obj_section *section; |
17c5ed2c DC |
1166 | /* Line number. Line numbers start at 1 and proceed through symtab->nlines. |
1167 | 0 is never a valid line number; it is used to indicate that line number | |
1168 | information is not available. */ | |
1169 | int line; | |
1170 | ||
1171 | CORE_ADDR pc; | |
1172 | CORE_ADDR end; | |
ed0616c6 VP |
1173 | int explicit_pc; |
1174 | int explicit_line; | |
55aa24fb SDJ |
1175 | |
1176 | /* The probe associated with this symtab_and_line. */ | |
1177 | struct probe *probe; | |
17c5ed2c | 1178 | }; |
c906108c | 1179 | |
fe39c653 | 1180 | extern void init_sal (struct symtab_and_line *sal); |
c906108c SS |
1181 | |
1182 | struct symtabs_and_lines | |
17c5ed2c DC |
1183 | { |
1184 | struct symtab_and_line *sals; | |
1185 | int nelts; | |
1186 | }; | |
c5aa993b | 1187 | \f |
c906108c | 1188 | |
c906108c SS |
1189 | /* Given a pc value, return line number it is in. Second arg nonzero means |
1190 | if pc is on the boundary use the previous statement's line number. */ | |
1191 | ||
a14ed312 | 1192 | extern struct symtab_and_line find_pc_line (CORE_ADDR, int); |
c906108c | 1193 | |
c378eb4e | 1194 | /* Same function, but specify a section as well as an address. */ |
c906108c | 1195 | |
714835d5 UW |
1196 | extern struct symtab_and_line find_pc_sect_line (CORE_ADDR, |
1197 | struct obj_section *, int); | |
c906108c | 1198 | |
c906108c SS |
1199 | /* Given a symtab and line number, return the pc there. */ |
1200 | ||
a14ed312 | 1201 | extern int find_line_pc (struct symtab *, int, CORE_ADDR *); |
c906108c | 1202 | |
570b8f7c AC |
1203 | extern int find_line_pc_range (struct symtab_and_line, CORE_ADDR *, |
1204 | CORE_ADDR *); | |
c906108c | 1205 | |
a14ed312 | 1206 | extern void resolve_sal_pc (struct symtab_and_line *); |
c906108c | 1207 | |
c906108c SS |
1208 | /* Symbol-reading stuff in symfile.c and solib.c. */ |
1209 | ||
a14ed312 | 1210 | extern void clear_solib (void); |
c906108c | 1211 | |
c906108c SS |
1212 | /* source.c */ |
1213 | ||
a14ed312 | 1214 | extern int identify_source_line (struct symtab *, int, int, CORE_ADDR); |
c906108c | 1215 | |
dfaae886 MM |
1216 | /* Flags passed as 4th argument to print_source_lines. */ |
1217 | ||
1218 | enum print_source_lines_flags | |
1219 | { | |
1220 | /* Do not print an error message. */ | |
4cd29721 MM |
1221 | PRINT_SOURCE_LINES_NOERROR = (1 << 0), |
1222 | ||
1223 | /* Print the filename in front of the source lines. */ | |
1224 | PRINT_SOURCE_LINES_FILENAME = (1 << 1) | |
dfaae886 MM |
1225 | }; |
1226 | ||
1227 | extern void print_source_lines (struct symtab *, int, int, | |
1228 | enum print_source_lines_flags); | |
c906108c | 1229 | |
00174a86 | 1230 | extern void forget_cached_source_info_for_objfile (struct objfile *); |
a14ed312 | 1231 | extern void forget_cached_source_info (void); |
c906108c | 1232 | |
a14ed312 | 1233 | extern void select_source_symtab (struct symtab *); |
c906108c | 1234 | |
49c4e619 | 1235 | extern VEC (char_ptr) *default_make_symbol_completion_list_break_on |
6f937416 | 1236 | (const char *text, const char *word, const char *break_on, |
2f68a895 | 1237 | enum type_code code); |
6f937416 PA |
1238 | extern VEC (char_ptr) *default_make_symbol_completion_list (const char *, |
1239 | const char *, | |
2f68a895 | 1240 | enum type_code); |
6f937416 PA |
1241 | extern VEC (char_ptr) *make_symbol_completion_list (const char *, const char *); |
1242 | extern VEC (char_ptr) *make_symbol_completion_type (const char *, const char *, | |
2f68a895 | 1243 | enum type_code); |
49c4e619 | 1244 | extern VEC (char_ptr) *make_symbol_completion_list_fn (struct cmd_list_element *, |
6f937416 PA |
1245 | const char *, |
1246 | const char *); | |
c906108c | 1247 | |
6f937416 PA |
1248 | extern VEC (char_ptr) *make_file_symbol_completion_list (const char *, |
1249 | const char *, | |
1250 | const char *); | |
c94fdfd0 | 1251 | |
6f937416 PA |
1252 | extern VEC (char_ptr) *make_source_files_completion_list (const char *, |
1253 | const char *); | |
c94fdfd0 | 1254 | |
c906108c SS |
1255 | /* symtab.c */ |
1256 | ||
714835d5 | 1257 | int matching_obj_sections (struct obj_section *, struct obj_section *); |
94277a38 | 1258 | |
50641945 FN |
1259 | extern struct symtab *find_line_symtab (struct symtab *, int, int *, int *); |
1260 | ||
17c5ed2c DC |
1261 | extern struct symtab_and_line find_function_start_sal (struct symbol *sym, |
1262 | int); | |
50641945 | 1263 | |
059acae7 UW |
1264 | extern void skip_prologue_sal (struct symtab_and_line *); |
1265 | ||
c906108c SS |
1266 | /* symfile.c */ |
1267 | ||
c1e56572 | 1268 | extern void clear_symtab_users (int add_flags); |
c906108c | 1269 | |
dd786858 | 1270 | extern enum language deduce_language_from_filename (const char *); |
c906108c SS |
1271 | |
1272 | /* symtab.c */ | |
1273 | ||
d80b854b UW |
1274 | extern int in_prologue (struct gdbarch *gdbarch, |
1275 | CORE_ADDR pc, CORE_ADDR func_start); | |
c906108c | 1276 | |
d80b854b UW |
1277 | extern CORE_ADDR skip_prologue_using_sal (struct gdbarch *gdbarch, |
1278 | CORE_ADDR func_addr); | |
634aa483 | 1279 | |
a14ed312 KB |
1280 | extern struct symbol *fixup_symbol_section (struct symbol *, |
1281 | struct objfile *); | |
c906108c SS |
1282 | |
1283 | /* Symbol searching */ | |
5c04624b DE |
1284 | /* Note: struct symbol_search, search_symbols, et.al. are declared here, |
1285 | instead of making them local to symtab.c, for gdbtk's sake. */ | |
c906108c SS |
1286 | |
1287 | /* When using search_symbols, a list of the following structs is returned. | |
c378eb4e | 1288 | Callers must free the search list using free_search_symbols! */ |
c906108c | 1289 | struct symbol_search |
17c5ed2c | 1290 | { |
c378eb4e MS |
1291 | /* The block in which the match was found. Could be, for example, |
1292 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
17c5ed2c | 1293 | int block; |
c906108c | 1294 | |
17c5ed2c | 1295 | /* Information describing what was found. |
c906108c | 1296 | |
b52109bc | 1297 | If symtab and symbol are NOT NULL, then information was found |
c378eb4e | 1298 | for this match. */ |
17c5ed2c DC |
1299 | struct symtab *symtab; |
1300 | struct symbol *symbol; | |
c906108c | 1301 | |
17c5ed2c | 1302 | /* If msymbol is non-null, then a match was made on something for |
c378eb4e | 1303 | which only minimal_symbols exist. */ |
7c7b6655 | 1304 | struct bound_minimal_symbol msymbol; |
c906108c | 1305 | |
c378eb4e | 1306 | /* A link to the next match, or NULL for the end. */ |
17c5ed2c DC |
1307 | struct symbol_search *next; |
1308 | }; | |
c906108c | 1309 | |
8903c50d | 1310 | extern void search_symbols (char *, enum search_domain, int, char **, |
a14ed312 KB |
1311 | struct symbol_search **); |
1312 | extern void free_search_symbols (struct symbol_search *); | |
17c5ed2c | 1313 | extern struct cleanup *make_cleanup_free_search_symbols (struct symbol_search |
b52109bc | 1314 | **); |
c906108c | 1315 | |
51cc5b07 AC |
1316 | /* The name of the ``main'' function. |
1317 | FIXME: cagney/2001-03-20: Can't make main_name() const since some | |
1318 | of the calling code currently assumes that the string isn't | |
c378eb4e | 1319 | const. */ |
51cc5b07 | 1320 | extern void set_main_name (const char *name); |
17c5ed2c | 1321 | extern /*const */ char *main_name (void); |
01f8c46d | 1322 | extern enum language language_of_main; |
51cc5b07 | 1323 | |
3a40aaa0 | 1324 | /* Check global symbols in objfile. */ |
3e43a32a | 1325 | struct symbol *lookup_global_symbol_from_objfile (const struct objfile *, |
3a40aaa0 | 1326 | const char *name, |
21b556f4 | 1327 | const domain_enum domain); |
3a40aaa0 | 1328 | |
a6c727b2 DJ |
1329 | /* Return 1 if the supplied producer string matches the ARM RealView |
1330 | compiler (armcc). */ | |
1331 | int producer_is_realview (const char *producer); | |
3a40aaa0 | 1332 | |
ccefe4c4 TT |
1333 | void fixup_section (struct general_symbol_info *ginfo, |
1334 | CORE_ADDR addr, struct objfile *objfile); | |
1335 | ||
c0201579 JK |
1336 | struct objfile *lookup_objfile_from_block (const struct block *block); |
1337 | ||
45cfd468 DE |
1338 | extern int symtab_create_debug; |
1339 | ||
c011a4f4 DE |
1340 | extern int basenames_may_differ; |
1341 | ||
4aac40c8 | 1342 | int compare_filenames_for_search (const char *filename, |
b57a636e | 1343 | const char *search_name); |
4aac40c8 | 1344 | |
f8eba3c6 | 1345 | int iterate_over_some_symtabs (const char *name, |
f8eba3c6 TT |
1346 | const char *real_path, |
1347 | int (*callback) (struct symtab *symtab, | |
1348 | void *data), | |
1349 | void *data, | |
1350 | struct symtab *first, | |
1351 | struct symtab *after_last); | |
1352 | ||
1353 | void iterate_over_symtabs (const char *name, | |
1354 | int (*callback) (struct symtab *symtab, | |
1355 | void *data), | |
1356 | void *data); | |
1357 | ||
1358 | DEF_VEC_I (CORE_ADDR); | |
1359 | ||
1360 | VEC (CORE_ADDR) *find_pcs_for_symtab_line (struct symtab *symtab, int line, | |
1361 | struct linetable_entry **best_entry); | |
1362 | ||
8e704927 GB |
1363 | /* Callback for LA_ITERATE_OVER_SYMBOLS. The callback will be called |
1364 | once per matching symbol SYM, with DATA being the argument of the | |
1365 | same name that was passed to LA_ITERATE_OVER_SYMBOLS. The callback | |
1366 | should return nonzero to indicate that LA_ITERATE_OVER_SYMBOLS | |
1367 | should continue iterating, or zero to indicate that the iteration | |
1368 | should end. */ | |
1369 | ||
1370 | typedef int (symbol_found_callback_ftype) (struct symbol *sym, void *data); | |
1371 | ||
f8eba3c6 TT |
1372 | void iterate_over_symbols (const struct block *block, const char *name, |
1373 | const domain_enum domain, | |
8e704927 | 1374 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
1375 | void *data); |
1376 | ||
1377 | struct cleanup *demangle_for_lookup (const char *name, enum language lang, | |
1378 | const char **result_name); | |
1379 | ||
e623cf5d TT |
1380 | struct symbol *allocate_symbol (struct objfile *); |
1381 | ||
1382 | void initialize_symbol (struct symbol *); | |
1383 | ||
1384 | struct template_symbol *allocate_template_symbol (struct objfile *); | |
1385 | ||
c906108c | 1386 | #endif /* !defined(SYMTAB_H) */ |