Commit | Line | Data |
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c906108c | 1 | /* Symbol table definitions for GDB. |
b6ba6518 | 2 | Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
17c5ed2c | 3 | 1997, 1998, 1999, 2000, 2001, 2002 |
c5aa993b | 4 | Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | #if !defined (SYMTAB_H) | |
24 | #define SYMTAB_H 1 | |
25 | ||
5f8a3188 AC |
26 | /* Opaque declarations. */ |
27 | struct obstack; | |
c906108c SS |
28 | |
29 | /* Don't do this; it means that if some .o's are compiled with GNU C | |
30 | and some are not (easy to do accidentally the way we configure | |
31 | things; also it is a pain to have to "make clean" every time you | |
32 | want to switch compilers), then GDB dies a horrible death. */ | |
33 | /* GNU C supports enums that are bitfields. Some compilers don't. */ | |
34 | #if 0 && defined(__GNUC__) && !defined(BYTE_BITFIELD) | |
35 | #define BYTE_BITFIELD :8; | |
36 | #else | |
c5aa993b | 37 | #define BYTE_BITFIELD /*nothing */ |
c906108c SS |
38 | #endif |
39 | ||
40 | /* Define a structure for the information that is common to all symbol types, | |
41 | including minimal symbols, partial symbols, and full symbols. In a | |
42 | multilanguage environment, some language specific information may need to | |
43 | be recorded along with each symbol. | |
44 | ||
45 | These fields are ordered to encourage good packing, since we frequently | |
46 | have tens or hundreds of thousands of these. */ | |
47 | ||
48 | struct general_symbol_info | |
17c5ed2c DC |
49 | { |
50 | /* Name of the symbol. This is a required field. Storage for the name is | |
51 | allocated on the psymbol_obstack or symbol_obstack for the associated | |
52 | objfile. */ | |
c906108c | 53 | |
17c5ed2c | 54 | char *name; |
c906108c | 55 | |
17c5ed2c DC |
56 | /* Value of the symbol. Which member of this union to use, and what |
57 | it means, depends on what kind of symbol this is and its | |
58 | SYMBOL_CLASS. See comments there for more details. All of these | |
59 | are in host byte order (though what they point to might be in | |
60 | target byte order, e.g. LOC_CONST_BYTES). */ | |
c906108c | 61 | |
17c5ed2c DC |
62 | union |
63 | { | |
64 | /* The fact that this is a long not a LONGEST mainly limits the | |
65 | range of a LOC_CONST. Since LOC_CONST_BYTES exists, I'm not | |
66 | sure that is a big deal. */ | |
67 | long ivalue; | |
c906108c | 68 | |
17c5ed2c | 69 | struct block *block; |
c906108c | 70 | |
17c5ed2c | 71 | char *bytes; |
c906108c | 72 | |
17c5ed2c | 73 | CORE_ADDR address; |
c906108c | 74 | |
17c5ed2c | 75 | /* for opaque typedef struct chain */ |
c906108c | 76 | |
17c5ed2c DC |
77 | struct symbol *chain; |
78 | } | |
79 | value; | |
c906108c | 80 | |
17c5ed2c DC |
81 | /* Since one and only one language can apply, wrap the language specific |
82 | information inside a union. */ | |
c906108c | 83 | |
17c5ed2c DC |
84 | union |
85 | { | |
86 | struct cplus_specific /* For C++ */ | |
87 | /* and Java */ | |
88 | { | |
89 | char *demangled_name; | |
90 | } | |
91 | cplus_specific; | |
ff4cb3e8 AF |
92 | struct objc_specific |
93 | { | |
94 | char *demangled_name; | |
95 | } | |
96 | objc_specific; | |
db034ac5 | 97 | #if 0 |
17c5ed2c DC |
98 | /* OBSOLETE struct chill_specific *//* For Chill */ |
99 | /* OBSOLETE { */ | |
100 | /* OBSOLETE char *demangled_name; */ | |
101 | /* OBSOLETE } */ | |
102 | /* OBSOLETE chill_specific; */ | |
db034ac5 | 103 | #endif |
17c5ed2c DC |
104 | } |
105 | language_specific; | |
c5aa993b | 106 | |
17c5ed2c DC |
107 | /* Record the source code language that applies to this symbol. |
108 | This is used to select one of the fields from the language specific | |
109 | union above. */ | |
c5aa993b | 110 | |
17c5ed2c | 111 | enum language language BYTE_BITFIELD; |
c5aa993b | 112 | |
17c5ed2c DC |
113 | /* Which section is this symbol in? This is an index into |
114 | section_offsets for this objfile. Negative means that the symbol | |
115 | does not get relocated relative to a section. | |
116 | Disclaimer: currently this is just used for xcoff, so don't | |
117 | expect all symbol-reading code to set it correctly (the ELF code | |
118 | also tries to set it correctly). */ | |
c5aa993b | 119 | |
17c5ed2c | 120 | short section; |
c5aa993b | 121 | |
17c5ed2c | 122 | /* The bfd section associated with this symbol. */ |
c5aa993b | 123 | |
17c5ed2c DC |
124 | asection *bfd_section; |
125 | }; | |
c906108c | 126 | |
a14ed312 | 127 | extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, asection *); |
c906108c SS |
128 | |
129 | #define SYMBOL_NAME(symbol) (symbol)->ginfo.name | |
130 | #define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.ivalue | |
131 | #define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address | |
132 | #define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes | |
133 | #define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block | |
134 | #define SYMBOL_VALUE_CHAIN(symbol) (symbol)->ginfo.value.chain | |
135 | #define SYMBOL_LANGUAGE(symbol) (symbol)->ginfo.language | |
136 | #define SYMBOL_SECTION(symbol) (symbol)->ginfo.section | |
137 | #define SYMBOL_BFD_SECTION(symbol) (symbol)->ginfo.bfd_section | |
138 | ||
139 | #define SYMBOL_CPLUS_DEMANGLED_NAME(symbol) \ | |
140 | (symbol)->ginfo.language_specific.cplus_specific.demangled_name | |
141 | ||
142 | /* Macro that initializes the language dependent portion of a symbol | |
143 | depending upon the language for the symbol. */ | |
144 | ||
145 | #define SYMBOL_INIT_LANGUAGE_SPECIFIC(symbol,language) \ | |
146 | do { \ | |
147 | SYMBOL_LANGUAGE (symbol) = language; \ | |
148 | if (SYMBOL_LANGUAGE (symbol) == language_cplus \ | |
149 | || SYMBOL_LANGUAGE (symbol) == language_java \ | |
150 | ) \ | |
151 | { \ | |
152 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \ | |
153 | } \ | |
ff4cb3e8 AF |
154 | else if (SYMBOL_LANGUAGE (symbol) == language_objc) \ |
155 | { \ | |
156 | SYMBOL_OBJC_DEMANGLED_NAME (symbol) = NULL; \ | |
157 | } \ | |
db034ac5 AC |
158 | /* OBSOLETE else if (SYMBOL_LANGUAGE (symbol) == language_chill) */ \ |
159 | /* OBSOLETE { */ \ | |
160 | /* OBSOLETE SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; */ \ | |
161 | /* OBSOLETE } */ \ | |
c906108c SS |
162 | else \ |
163 | { \ | |
164 | memset (&(symbol)->ginfo.language_specific, 0, \ | |
165 | sizeof ((symbol)->ginfo.language_specific)); \ | |
166 | } \ | |
167 | } while (0) | |
168 | ||
12af6855 JB |
169 | #define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \ |
170 | (symbol_init_demangled_name (&symbol->ginfo, (obstack))) | |
171 | extern void symbol_init_demangled_name (struct general_symbol_info *symbol, | |
17c5ed2c DC |
172 | struct obstack *obstack); |
173 | ||
c906108c SS |
174 | |
175 | /* Macro that returns the demangled name for a symbol based on the language | |
176 | for that symbol. If no demangled name exists, returns NULL. */ | |
177 | ||
178 | #define SYMBOL_DEMANGLED_NAME(symbol) \ | |
179 | (SYMBOL_LANGUAGE (symbol) == language_cplus \ | |
180 | || SYMBOL_LANGUAGE (symbol) == language_java \ | |
181 | ? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \ | |
ff4cb3e8 AF |
182 | : (SYMBOL_LANGUAGE (symbol) == language_objc \ |
183 | ? SYMBOL_OBJC_DEMANGLED_NAME (symbol) \ | |
db034ac5 AC |
184 | : /* OBSOLETE (SYMBOL_LANGUAGE (symbol) == language_chill */ \ |
185 | /* OBSOLETE ? SYMBOL_CHILL_DEMANGLED_NAME (symbol) */ \ | |
ff4cb3e8 | 186 | NULL)) |
c906108c | 187 | |
db034ac5 AC |
188 | /* OBSOLETE #define SYMBOL_CHILL_DEMANGLED_NAME(symbol) */ |
189 | /* OBSOLETE (symbol)->ginfo.language_specific.chill_specific.demangled_name */ | |
c906108c | 190 | |
ff4cb3e8 AF |
191 | #define SYMBOL_OBJC_DEMANGLED_NAME(symbol) \ |
192 | (symbol)->ginfo.language_specific.objc_specific.demangled_name | |
193 | ||
c906108c SS |
194 | /* Macro that returns the "natural source name" of a symbol. In C++ this is |
195 | the "demangled" form of the name if demangle is on and the "mangled" form | |
196 | of the name if demangle is off. In other languages this is just the | |
197 | symbol name. The result should never be NULL. */ | |
198 | ||
199 | #define SYMBOL_SOURCE_NAME(symbol) \ | |
200 | (demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
201 | ? SYMBOL_DEMANGLED_NAME (symbol) \ | |
202 | : SYMBOL_NAME (symbol)) | |
203 | ||
204 | /* Macro that returns the "natural assembly name" of a symbol. In C++ this is | |
205 | the "mangled" form of the name if demangle is off, or if demangle is on and | |
206 | asm_demangle is off. Otherwise if asm_demangle is on it is the "demangled" | |
207 | form. In other languages this is just the symbol name. The result should | |
208 | never be NULL. */ | |
209 | ||
210 | #define SYMBOL_LINKAGE_NAME(symbol) \ | |
211 | (demangle && asm_demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
212 | ? SYMBOL_DEMANGLED_NAME (symbol) \ | |
213 | : SYMBOL_NAME (symbol)) | |
214 | ||
215 | /* Macro that tests a symbol for a match against a specified name string. | |
216 | First test the unencoded name, then looks for and test a C++ encoded | |
217 | name if it exists. Note that whitespace is ignored while attempting to | |
218 | match a C++ encoded name, so that "foo::bar(int,long)" is the same as | |
219 | "foo :: bar (int, long)". | |
220 | Evaluates to zero if the match fails, or nonzero if it succeeds. */ | |
221 | ||
222 | #define SYMBOL_MATCHES_NAME(symbol, name) \ | |
223 | (STREQ (SYMBOL_NAME (symbol), (name)) \ | |
224 | || (SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
225 | && strcmp_iw (SYMBOL_DEMANGLED_NAME (symbol), (name)) == 0)) | |
c5aa993b | 226 | |
c906108c SS |
227 | /* Macro that tests a symbol for an re-match against the last compiled regular |
228 | expression. First test the unencoded name, then look for and test a C++ | |
229 | encoded name if it exists. | |
230 | Evaluates to zero if the match fails, or nonzero if it succeeds. */ | |
231 | ||
232 | #define SYMBOL_MATCHES_REGEXP(symbol) \ | |
233 | (re_exec (SYMBOL_NAME (symbol)) != 0 \ | |
234 | || (SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
235 | && re_exec (SYMBOL_DEMANGLED_NAME (symbol)) != 0)) | |
c5aa993b | 236 | |
c906108c SS |
237 | /* Define a simple structure used to hold some very basic information about |
238 | all defined global symbols (text, data, bss, abs, etc). The only required | |
239 | information is the general_symbol_info. | |
240 | ||
241 | In many cases, even if a file was compiled with no special options for | |
242 | debugging at all, as long as was not stripped it will contain sufficient | |
243 | information to build a useful minimal symbol table using this structure. | |
244 | Even when a file contains enough debugging information to build a full | |
245 | symbol table, these minimal symbols are still useful for quickly mapping | |
246 | between names and addresses, and vice versa. They are also sometimes | |
247 | used to figure out what full symbol table entries need to be read in. */ | |
248 | ||
249 | struct minimal_symbol | |
17c5ed2c | 250 | { |
c906108c | 251 | |
17c5ed2c | 252 | /* The general symbol info required for all types of symbols. |
c906108c | 253 | |
17c5ed2c DC |
254 | The SYMBOL_VALUE_ADDRESS contains the address that this symbol |
255 | corresponds to. */ | |
c906108c | 256 | |
17c5ed2c | 257 | struct general_symbol_info ginfo; |
c906108c | 258 | |
17c5ed2c DC |
259 | /* The info field is available for caching machine-specific information |
260 | so it doesn't have to rederive the info constantly (over a serial line). | |
261 | It is initialized to zero and stays that way until target-dependent code | |
262 | sets it. Storage for any data pointed to by this field should be allo- | |
263 | cated on the symbol_obstack for the associated objfile. | |
264 | The type would be "void *" except for reasons of compatibility with older | |
265 | compilers. This field is optional. | |
c906108c | 266 | |
17c5ed2c DC |
267 | Currently, the AMD 29000 tdep.c uses it to remember things it has decoded |
268 | from the instructions in the function header, and the MIPS-16 code uses | |
269 | it to identify 16-bit procedures. */ | |
c906108c | 270 | |
17c5ed2c | 271 | char *info; |
c906108c SS |
272 | |
273 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING | |
17c5ed2c DC |
274 | /* Which source file is this symbol in? Only relevant for mst_file_*. */ |
275 | char *filename; | |
c906108c SS |
276 | #endif |
277 | ||
17c5ed2c DC |
278 | /* Classification types for this symbol. These should be taken as "advisory |
279 | only", since if gdb can't easily figure out a classification it simply | |
280 | selects mst_unknown. It may also have to guess when it can't figure out | |
281 | which is a better match between two types (mst_data versus mst_bss) for | |
282 | example. Since the minimal symbol info is sometimes derived from the | |
283 | BFD library's view of a file, we need to live with what information bfd | |
284 | supplies. */ | |
285 | ||
286 | enum minimal_symbol_type | |
287 | { | |
288 | mst_unknown = 0, /* Unknown type, the default */ | |
289 | mst_text, /* Generally executable instructions */ | |
290 | mst_data, /* Generally initialized data */ | |
291 | mst_bss, /* Generally uninitialized data */ | |
292 | mst_abs, /* Generally absolute (nonrelocatable) */ | |
293 | /* GDB uses mst_solib_trampoline for the start address of a shared | |
294 | library trampoline entry. Breakpoints for shared library functions | |
295 | are put there if the shared library is not yet loaded. | |
296 | After the shared library is loaded, lookup_minimal_symbol will | |
297 | prefer the minimal symbol from the shared library (usually | |
298 | a mst_text symbol) over the mst_solib_trampoline symbol, and the | |
299 | breakpoints will be moved to their true address in the shared | |
300 | library via breakpoint_re_set. */ | |
301 | mst_solib_trampoline, /* Shared library trampoline code */ | |
302 | /* For the mst_file* types, the names are only guaranteed to be unique | |
303 | within a given .o file. */ | |
304 | mst_file_text, /* Static version of mst_text */ | |
305 | mst_file_data, /* Static version of mst_data */ | |
306 | mst_file_bss /* Static version of mst_bss */ | |
307 | } | |
308 | type BYTE_BITFIELD; | |
309 | ||
310 | /* Minimal symbols with the same hash key are kept on a linked | |
311 | list. This is the link. */ | |
312 | ||
313 | struct minimal_symbol *hash_next; | |
314 | ||
315 | /* Minimal symbols are stored in two different hash tables. This is | |
316 | the `next' pointer for the demangled hash table. */ | |
317 | ||
318 | struct minimal_symbol *demangled_hash_next; | |
319 | }; | |
c906108c SS |
320 | |
321 | #define MSYMBOL_INFO(msymbol) (msymbol)->info | |
322 | #define MSYMBOL_TYPE(msymbol) (msymbol)->type | |
c906108c | 323 | \f |
c5aa993b | 324 | |
17c5ed2c | 325 | |
c906108c SS |
326 | /* All of the name-scope contours of the program |
327 | are represented by `struct block' objects. | |
328 | All of these objects are pointed to by the blockvector. | |
329 | ||
330 | Each block represents one name scope. | |
331 | Each lexical context has its own block. | |
332 | ||
333 | The blockvector begins with some special blocks. | |
334 | The GLOBAL_BLOCK contains all the symbols defined in this compilation | |
335 | whose scope is the entire program linked together. | |
336 | The STATIC_BLOCK contains all the symbols whose scope is the | |
337 | entire compilation excluding other separate compilations. | |
338 | Blocks starting with the FIRST_LOCAL_BLOCK are not special. | |
339 | ||
340 | Each block records a range of core addresses for the code that | |
341 | is in the scope of the block. The STATIC_BLOCK and GLOBAL_BLOCK | |
342 | give, for the range of code, the entire range of code produced | |
343 | by the compilation that the symbol segment belongs to. | |
344 | ||
345 | The blocks appear in the blockvector | |
346 | in order of increasing starting-address, | |
347 | and, within that, in order of decreasing ending-address. | |
348 | ||
349 | This implies that within the body of one function | |
350 | the blocks appear in the order of a depth-first tree walk. */ | |
351 | ||
352 | struct blockvector | |
17c5ed2c DC |
353 | { |
354 | /* Number of blocks in the list. */ | |
355 | int nblocks; | |
356 | /* The blocks themselves. */ | |
357 | struct block *block[1]; | |
358 | }; | |
c906108c SS |
359 | |
360 | #define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks | |
361 | #define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n] | |
362 | ||
363 | /* Special block numbers */ | |
364 | ||
365 | #define GLOBAL_BLOCK 0 | |
366 | #define STATIC_BLOCK 1 | |
367 | #define FIRST_LOCAL_BLOCK 2 | |
368 | ||
369 | struct block | |
17c5ed2c | 370 | { |
c906108c | 371 | |
17c5ed2c | 372 | /* Addresses in the executable code that are in this block. */ |
c906108c | 373 | |
17c5ed2c DC |
374 | CORE_ADDR startaddr; |
375 | CORE_ADDR endaddr; | |
c906108c | 376 | |
17c5ed2c DC |
377 | /* The symbol that names this block, if the block is the body of a |
378 | function; otherwise, zero. */ | |
c906108c | 379 | |
17c5ed2c | 380 | struct symbol *function; |
c906108c | 381 | |
17c5ed2c | 382 | /* The `struct block' for the containing block, or 0 if none. |
c906108c | 383 | |
17c5ed2c DC |
384 | The superblock of a top-level local block (i.e. a function in the |
385 | case of C) is the STATIC_BLOCK. The superblock of the | |
386 | STATIC_BLOCK is the GLOBAL_BLOCK. */ | |
c906108c | 387 | |
17c5ed2c | 388 | struct block *superblock; |
c906108c | 389 | |
17c5ed2c DC |
390 | /* Version of GCC used to compile the function corresponding |
391 | to this block, or 0 if not compiled with GCC. When possible, | |
392 | GCC should be compatible with the native compiler, or if that | |
393 | is not feasible, the differences should be fixed during symbol | |
394 | reading. As of 16 Apr 93, this flag is never used to distinguish | |
395 | between gcc2 and the native compiler. | |
c906108c | 396 | |
17c5ed2c DC |
397 | If there is no function corresponding to this block, this meaning |
398 | of this flag is undefined. */ | |
c906108c | 399 | |
17c5ed2c | 400 | unsigned char gcc_compile_flag; |
c906108c | 401 | |
17c5ed2c DC |
402 | /* The symbols for this block are either in a simple linear list or |
403 | in a simple hashtable. Blocks which correspond to a function | |
404 | (which have a list of symbols corresponding to arguments) use | |
405 | a linear list, as do some older symbol readers (currently only | |
406 | mdebugread and dstread). Other blocks are hashed. | |
261397f8 | 407 | |
17c5ed2c DC |
408 | The hashtable uses the same hash function as the minsym hashtables, |
409 | found in minsyms.c:minsym_hash_iw. Symbols are hashed based on | |
410 | their demangled name if appropriate, and on their name otherwise. | |
411 | The hash function ignores space, and stops at the beginning of the | |
412 | argument list if any. | |
261397f8 | 413 | |
17c5ed2c DC |
414 | The table is laid out in NSYMS/5 buckets and symbols are chained via |
415 | their hash_next field. */ | |
261397f8 | 416 | |
17c5ed2c | 417 | /* If this is really a hashtable of the symbols, this flag is 1. */ |
261397f8 | 418 | |
17c5ed2c | 419 | unsigned char hashtable; |
261397f8 | 420 | |
17c5ed2c | 421 | /* Number of local symbols. */ |
c906108c | 422 | |
17c5ed2c | 423 | int nsyms; |
c906108c | 424 | |
17c5ed2c DC |
425 | /* The symbols. If some of them are arguments, then they must be |
426 | in the order in which we would like to print them. */ | |
c906108c | 427 | |
17c5ed2c DC |
428 | struct symbol *sym[1]; |
429 | }; | |
c906108c SS |
430 | |
431 | #define BLOCK_START(bl) (bl)->startaddr | |
432 | #define BLOCK_END(bl) (bl)->endaddr | |
c906108c SS |
433 | #define BLOCK_FUNCTION(bl) (bl)->function |
434 | #define BLOCK_SUPERBLOCK(bl) (bl)->superblock | |
435 | #define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag | |
261397f8 | 436 | #define BLOCK_HASHTABLE(bl) (bl)->hashtable |
c906108c | 437 | |
261397f8 DJ |
438 | /* For blocks without a hashtable (BLOCK_HASHTABLE (bl) == 0) only. */ |
439 | #define BLOCK_NSYMS(bl) (bl)->nsyms | |
440 | #define BLOCK_SYM(bl, n) (bl)->sym[n] | |
441 | ||
442 | /* For blocks with a hashtable, but these are valid for non-hashed blocks as | |
443 | well - each symbol will appear to be one bucket by itself. */ | |
444 | #define BLOCK_BUCKETS(bl) (bl)->nsyms | |
445 | #define BLOCK_BUCKET(bl, n) (bl)->sym[n] | |
446 | ||
447 | /* Macro used to set the size of a hashtable for N symbols. */ | |
448 | #define BLOCK_HASHTABLE_SIZE(n) ((n)/5 + 1) | |
449 | ||
450 | /* Macro to loop through all symbols in a block BL, in no particular order. | |
451 | i counts which bucket we are in, and sym points to the current symbol. */ | |
452 | ||
453 | #define ALL_BLOCK_SYMBOLS(bl, i, sym) \ | |
454 | for ((i) = 0; (i) < BLOCK_BUCKETS ((bl)); (i)++) \ | |
455 | for ((sym) = BLOCK_BUCKET ((bl), (i)); (sym); \ | |
456 | (sym) = (sym)->hash_next) | |
e88c90f2 | 457 | |
c906108c SS |
458 | /* Nonzero if symbols of block BL should be sorted alphabetically. |
459 | Don't sort a block which corresponds to a function. If we did the | |
460 | sorting would have to preserve the order of the symbols for the | |
261397f8 | 461 | arguments. Also don't sort any block that we chose to hash. */ |
c906108c | 462 | |
261397f8 DJ |
463 | #define BLOCK_SHOULD_SORT(bl) (! BLOCK_HASHTABLE (bl) \ |
464 | && BLOCK_FUNCTION (bl) == NULL) | |
c906108c | 465 | \f |
c5aa993b | 466 | |
c906108c SS |
467 | /* Represent one symbol name; a variable, constant, function or typedef. */ |
468 | ||
469 | /* Different name spaces for symbols. Looking up a symbol specifies a | |
470 | namespace and ignores symbol definitions in other name spaces. */ | |
c906108c | 471 | |
c5aa993b | 472 | typedef enum |
17c5ed2c DC |
473 | { |
474 | /* UNDEF_NAMESPACE is used when a namespace has not been discovered or | |
475 | none of the following apply. This usually indicates an error either | |
476 | in the symbol information or in gdb's handling of symbols. */ | |
c906108c | 477 | |
17c5ed2c | 478 | UNDEF_NAMESPACE, |
c906108c | 479 | |
17c5ed2c DC |
480 | /* VAR_NAMESPACE is the usual namespace. In C, this contains variables, |
481 | function names, typedef names and enum type values. */ | |
c906108c | 482 | |
17c5ed2c | 483 | VAR_NAMESPACE, |
c906108c | 484 | |
17c5ed2c DC |
485 | /* STRUCT_NAMESPACE is used in C to hold struct, union and enum type names. |
486 | Thus, if `struct foo' is used in a C program, it produces a symbol named | |
487 | `foo' in the STRUCT_NAMESPACE. */ | |
c906108c | 488 | |
17c5ed2c | 489 | STRUCT_NAMESPACE, |
c906108c | 490 | |
17c5ed2c DC |
491 | /* LABEL_NAMESPACE may be used for names of labels (for gotos); |
492 | currently it is not used and labels are not recorded at all. */ | |
c906108c | 493 | |
17c5ed2c | 494 | LABEL_NAMESPACE, |
c906108c | 495 | |
17c5ed2c DC |
496 | /* Searching namespaces. These overlap with VAR_NAMESPACE, providing |
497 | some granularity with the search_symbols function. */ | |
c906108c | 498 | |
17c5ed2c DC |
499 | /* Everything in VAR_NAMESPACE minus FUNCTIONS_-, TYPES_-, and |
500 | METHODS_NAMESPACE */ | |
501 | VARIABLES_NAMESPACE, | |
c906108c | 502 | |
17c5ed2c DC |
503 | /* All functions -- for some reason not methods, though. */ |
504 | FUNCTIONS_NAMESPACE, | |
c906108c | 505 | |
17c5ed2c DC |
506 | /* All defined types */ |
507 | TYPES_NAMESPACE, | |
c906108c | 508 | |
17c5ed2c DC |
509 | /* All class methods -- why is this separated out? */ |
510 | METHODS_NAMESPACE | |
511 | } | |
c5aa993b | 512 | namespace_enum; |
c906108c SS |
513 | |
514 | /* An address-class says where to find the value of a symbol. */ | |
515 | ||
516 | enum address_class | |
17c5ed2c DC |
517 | { |
518 | /* Not used; catches errors */ | |
c5aa993b | 519 | |
17c5ed2c | 520 | LOC_UNDEF, |
c906108c | 521 | |
17c5ed2c | 522 | /* Value is constant int SYMBOL_VALUE, host byteorder */ |
c906108c | 523 | |
17c5ed2c | 524 | LOC_CONST, |
c906108c | 525 | |
17c5ed2c | 526 | /* Value is at fixed address SYMBOL_VALUE_ADDRESS */ |
c906108c | 527 | |
17c5ed2c | 528 | LOC_STATIC, |
c906108c | 529 | |
17c5ed2c | 530 | /* Value is in register. SYMBOL_VALUE is the register number. */ |
c906108c | 531 | |
17c5ed2c | 532 | LOC_REGISTER, |
c906108c | 533 | |
17c5ed2c | 534 | /* It's an argument; the value is at SYMBOL_VALUE offset in arglist. */ |
c906108c | 535 | |
17c5ed2c | 536 | LOC_ARG, |
c906108c | 537 | |
17c5ed2c | 538 | /* Value address is at SYMBOL_VALUE offset in arglist. */ |
c906108c | 539 | |
17c5ed2c | 540 | LOC_REF_ARG, |
c906108c | 541 | |
17c5ed2c DC |
542 | /* Value is in register number SYMBOL_VALUE. Just like LOC_REGISTER |
543 | except this is an argument. Probably the cleaner way to handle | |
544 | this would be to separate address_class (which would include | |
545 | separate ARG and LOCAL to deal with FRAME_ARGS_ADDRESS versus | |
546 | FRAME_LOCALS_ADDRESS), and an is_argument flag. | |
c906108c | 547 | |
17c5ed2c DC |
548 | For some symbol formats (stabs, for some compilers at least), |
549 | the compiler generates two symbols, an argument and a register. | |
550 | In some cases we combine them to a single LOC_REGPARM in symbol | |
551 | reading, but currently not for all cases (e.g. it's passed on the | |
552 | stack and then loaded into a register). */ | |
c906108c | 553 | |
17c5ed2c | 554 | LOC_REGPARM, |
c906108c | 555 | |
17c5ed2c DC |
556 | /* Value is in specified register. Just like LOC_REGPARM except the |
557 | register holds the address of the argument instead of the argument | |
558 | itself. This is currently used for the passing of structs and unions | |
559 | on sparc and hppa. It is also used for call by reference where the | |
560 | address is in a register, at least by mipsread.c. */ | |
c906108c | 561 | |
17c5ed2c | 562 | LOC_REGPARM_ADDR, |
c906108c | 563 | |
17c5ed2c | 564 | /* Value is a local variable at SYMBOL_VALUE offset in stack frame. */ |
c906108c | 565 | |
17c5ed2c | 566 | LOC_LOCAL, |
c906108c | 567 | |
17c5ed2c DC |
568 | /* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace |
569 | STRUCT_NAMESPACE all have this class. */ | |
c906108c | 570 | |
17c5ed2c | 571 | LOC_TYPEDEF, |
c906108c | 572 | |
17c5ed2c | 573 | /* Value is address SYMBOL_VALUE_ADDRESS in the code */ |
c906108c | 574 | |
17c5ed2c | 575 | LOC_LABEL, |
c906108c | 576 | |
17c5ed2c DC |
577 | /* In a symbol table, value is SYMBOL_BLOCK_VALUE of a `struct block'. |
578 | In a partial symbol table, SYMBOL_VALUE_ADDRESS is the start address | |
579 | of the block. Function names have this class. */ | |
c906108c | 580 | |
17c5ed2c | 581 | LOC_BLOCK, |
c906108c | 582 | |
17c5ed2c DC |
583 | /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_BYTES, in |
584 | target byte order. */ | |
c906108c | 585 | |
17c5ed2c | 586 | LOC_CONST_BYTES, |
c906108c | 587 | |
17c5ed2c DC |
588 | /* Value is arg at SYMBOL_VALUE offset in stack frame. Differs from |
589 | LOC_LOCAL in that symbol is an argument; differs from LOC_ARG in | |
590 | that we find it in the frame (FRAME_LOCALS_ADDRESS), not in the | |
591 | arglist (FRAME_ARGS_ADDRESS). Added for i960, which passes args | |
592 | in regs then copies to frame. */ | |
c906108c | 593 | |
17c5ed2c | 594 | LOC_LOCAL_ARG, |
c906108c | 595 | |
17c5ed2c DC |
596 | /* Value is at SYMBOL_VALUE offset from the current value of |
597 | register number SYMBOL_BASEREG. This exists mainly for the same | |
598 | things that LOC_LOCAL and LOC_ARG do; but we need to do this | |
599 | instead because on 88k DWARF gives us the offset from the | |
600 | frame/stack pointer, rather than the offset from the "canonical | |
601 | frame address" used by COFF, stabs, etc., and we don't know how | |
602 | to convert between these until we start examining prologues. | |
c906108c | 603 | |
17c5ed2c DC |
604 | Note that LOC_BASEREG is much less general than a DWARF expression. |
605 | We don't need the generality (at least not yet), and storing a general | |
606 | DWARF expression would presumably take up more space than the existing | |
607 | scheme. */ | |
c906108c | 608 | |
17c5ed2c | 609 | LOC_BASEREG, |
c906108c | 610 | |
17c5ed2c | 611 | /* Same as LOC_BASEREG but it is an argument. */ |
c906108c | 612 | |
17c5ed2c | 613 | LOC_BASEREG_ARG, |
c906108c | 614 | |
17c5ed2c DC |
615 | /* Value is at fixed address, but the address of the variable has |
616 | to be determined from the minimal symbol table whenever the | |
617 | variable is referenced. | |
618 | This happens if debugging information for a global symbol is | |
619 | emitted and the corresponding minimal symbol is defined | |
620 | in another object file or runtime common storage. | |
621 | The linker might even remove the minimal symbol if the global | |
622 | symbol is never referenced, in which case the symbol remains | |
623 | unresolved. */ | |
c906108c | 624 | |
17c5ed2c | 625 | LOC_UNRESOLVED, |
c906108c | 626 | |
17c5ed2c | 627 | /* Value is at a thread-specific location calculated by a |
407caf07 | 628 | target-specific method. This is used only by hppa. */ |
c906108c | 629 | |
407caf07 | 630 | LOC_HP_THREAD_LOCAL_STATIC, |
c906108c | 631 | |
9d774e44 EZ |
632 | /* Value is at a thread-specific location calculated by a |
633 | target-specific method. SYMBOL_OBJFILE gives the object file | |
634 | in which the symbol is defined; the symbol's value is the | |
635 | offset into that objfile's thread-local storage for the current | |
636 | thread. */ | |
637 | ||
638 | LOC_THREAD_LOCAL_STATIC, | |
639 | ||
17c5ed2c DC |
640 | /* The variable does not actually exist in the program. |
641 | The value is ignored. */ | |
c906108c | 642 | |
17c5ed2c | 643 | LOC_OPTIMIZED_OUT, |
c906108c | 644 | |
17c5ed2c DC |
645 | /* The variable is static, but actually lives at * (address). |
646 | * I.e. do an extra indirection to get to it. | |
647 | * This is used on HP-UX to get at globals that are allocated | |
648 | * in shared libraries, where references from images other | |
649 | * than the one where the global was allocated are done | |
650 | * with a level of indirection. | |
651 | */ | |
c906108c | 652 | |
17c5ed2c DC |
653 | LOC_INDIRECT |
654 | }; | |
c906108c SS |
655 | |
656 | /* Linked list of symbol's live ranges. */ | |
657 | ||
c5aa993b | 658 | struct range_list |
17c5ed2c DC |
659 | { |
660 | CORE_ADDR start; | |
661 | CORE_ADDR end; | |
662 | struct range_list *next; | |
663 | }; | |
c906108c SS |
664 | |
665 | /* Linked list of aliases for a particular main/primary symbol. */ | |
666 | struct alias_list | |
17c5ed2c DC |
667 | { |
668 | struct symbol *sym; | |
669 | struct alias_list *next; | |
670 | }; | |
c906108c SS |
671 | |
672 | struct symbol | |
17c5ed2c | 673 | { |
c906108c | 674 | |
17c5ed2c | 675 | /* The general symbol info required for all types of symbols. */ |
c906108c | 676 | |
17c5ed2c | 677 | struct general_symbol_info ginfo; |
c906108c | 678 | |
17c5ed2c | 679 | /* Data type of value */ |
c906108c | 680 | |
17c5ed2c | 681 | struct type *type; |
c906108c | 682 | |
17c5ed2c | 683 | /* Name space code. */ |
c906108c SS |
684 | |
685 | #ifdef __MFC4__ | |
17c5ed2c DC |
686 | /* FIXME: don't conflict with C++'s namespace */ |
687 | /* would be safer to do a global change for all namespace identifiers. */ | |
c5aa993b | 688 | #define namespace _namespace |
c906108c | 689 | #endif |
17c5ed2c | 690 | namespace_enum namespace BYTE_BITFIELD; |
c906108c | 691 | |
17c5ed2c | 692 | /* Address class */ |
c906108c | 693 | |
17c5ed2c | 694 | enum address_class aclass BYTE_BITFIELD; |
c906108c | 695 | |
17c5ed2c DC |
696 | /* Line number of definition. FIXME: Should we really make the assumption |
697 | that nobody will try to debug files longer than 64K lines? What about | |
698 | machine generated programs? */ | |
c906108c | 699 | |
17c5ed2c | 700 | unsigned short line; |
c906108c | 701 | |
17c5ed2c DC |
702 | /* Some symbols require an additional value to be recorded on a per- |
703 | symbol basis. Stash those values here. */ | |
c5aa993b | 704 | |
17c5ed2c DC |
705 | union |
706 | { | |
707 | /* Used by LOC_BASEREG and LOC_BASEREG_ARG. */ | |
708 | short basereg; | |
9d774e44 EZ |
709 | |
710 | /* Used by LOC_THREAD_LOCAL_STATIC. The objfile in which this | |
711 | symbol is defined. To find a thread-local variable (e.g., a | |
712 | variable declared with the `__thread' storage class), we may | |
713 | need to know which object file it's in. */ | |
714 | struct objfile *objfile; | |
17c5ed2c DC |
715 | } |
716 | aux_value; | |
c906108c SS |
717 | |
718 | ||
17c5ed2c DC |
719 | /* Link to a list of aliases for this symbol. |
720 | Only a "primary/main symbol may have aliases. */ | |
721 | struct alias_list *aliases; | |
c906108c | 722 | |
17c5ed2c DC |
723 | /* List of ranges where this symbol is active. This is only |
724 | used by alias symbols at the current time. */ | |
725 | struct range_list *ranges; | |
261397f8 | 726 | |
17c5ed2c DC |
727 | struct symbol *hash_next; |
728 | }; | |
c906108c SS |
729 | |
730 | ||
731 | #define SYMBOL_NAMESPACE(symbol) (symbol)->namespace | |
732 | #define SYMBOL_CLASS(symbol) (symbol)->aclass | |
733 | #define SYMBOL_TYPE(symbol) (symbol)->type | |
734 | #define SYMBOL_LINE(symbol) (symbol)->line | |
735 | #define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg | |
9d774e44 | 736 | #define SYMBOL_OBJFILE(symbol) (symbol)->aux_value.objfile |
c906108c SS |
737 | #define SYMBOL_ALIASES(symbol) (symbol)->aliases |
738 | #define SYMBOL_RANGES(symbol) (symbol)->ranges | |
739 | \f | |
740 | /* A partial_symbol records the name, namespace, and address class of | |
741 | symbols whose types we have not parsed yet. For functions, it also | |
742 | contains their memory address, so we can find them from a PC value. | |
743 | Each partial_symbol sits in a partial_symtab, all of which are chained | |
a960f249 | 744 | on a partial symtab list and which points to the corresponding |
c906108c SS |
745 | normal symtab once the partial_symtab has been referenced. */ |
746 | ||
747 | struct partial_symbol | |
17c5ed2c | 748 | { |
c906108c | 749 | |
17c5ed2c | 750 | /* The general symbol info required for all types of symbols. */ |
c906108c | 751 | |
17c5ed2c | 752 | struct general_symbol_info ginfo; |
c906108c | 753 | |
17c5ed2c | 754 | /* Name space code. */ |
c906108c | 755 | |
17c5ed2c | 756 | namespace_enum namespace BYTE_BITFIELD; |
c906108c | 757 | |
17c5ed2c | 758 | /* Address class (for info_symbols) */ |
c906108c | 759 | |
17c5ed2c | 760 | enum address_class aclass BYTE_BITFIELD; |
c906108c | 761 | |
17c5ed2c | 762 | }; |
c906108c SS |
763 | |
764 | #define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace | |
765 | #define PSYMBOL_CLASS(psymbol) (psymbol)->aclass | |
c906108c | 766 | \f |
c5aa993b | 767 | |
c906108c SS |
768 | /* Each item represents a line-->pc (or the reverse) mapping. This is |
769 | somewhat more wasteful of space than one might wish, but since only | |
770 | the files which are actually debugged are read in to core, we don't | |
771 | waste much space. */ | |
772 | ||
773 | struct linetable_entry | |
17c5ed2c DC |
774 | { |
775 | int line; | |
776 | CORE_ADDR pc; | |
777 | }; | |
c906108c SS |
778 | |
779 | /* The order of entries in the linetable is significant. They should | |
780 | be sorted by increasing values of the pc field. If there is more than | |
781 | one entry for a given pc, then I'm not sure what should happen (and | |
782 | I not sure whether we currently handle it the best way). | |
783 | ||
784 | Example: a C for statement generally looks like this | |
785 | ||
c5aa993b JM |
786 | 10 0x100 - for the init/test part of a for stmt. |
787 | 20 0x200 | |
788 | 30 0x300 | |
789 | 10 0x400 - for the increment part of a for stmt. | |
c906108c | 790 | |
e8717518 FF |
791 | If an entry has a line number of zero, it marks the start of a PC |
792 | range for which no line number information is available. It is | |
793 | acceptable, though wasteful of table space, for such a range to be | |
794 | zero length. */ | |
c906108c SS |
795 | |
796 | struct linetable | |
17c5ed2c DC |
797 | { |
798 | int nitems; | |
c906108c | 799 | |
17c5ed2c DC |
800 | /* Actually NITEMS elements. If you don't like this use of the |
801 | `struct hack', you can shove it up your ANSI (seriously, if the | |
802 | committee tells us how to do it, we can probably go along). */ | |
803 | struct linetable_entry item[1]; | |
804 | }; | |
c906108c | 805 | |
c906108c SS |
806 | /* How to relocate the symbols from each section in a symbol file. |
807 | Each struct contains an array of offsets. | |
808 | The ordering and meaning of the offsets is file-type-dependent; | |
809 | typically it is indexed by section numbers or symbol types or | |
810 | something like that. | |
811 | ||
812 | To give us flexibility in changing the internal representation | |
813 | of these offsets, the ANOFFSET macro must be used to insert and | |
814 | extract offset values in the struct. */ | |
815 | ||
816 | struct section_offsets | |
17c5ed2c DC |
817 | { |
818 | CORE_ADDR offsets[1]; /* As many as needed. */ | |
819 | }; | |
c906108c | 820 | |
a4c8257b | 821 | #define ANOFFSET(secoff, whichone) \ |
8e65ff28 AC |
822 | ((whichone == -1) \ |
823 | ? (internal_error (__FILE__, __LINE__, "Section index is uninitialized"), -1) \ | |
824 | : secoff->offsets[whichone]) | |
c906108c SS |
825 | |
826 | /* The maximum possible size of a section_offsets table. */ | |
c5aa993b | 827 | |
c906108c SS |
828 | #define SIZEOF_SECTION_OFFSETS \ |
829 | (sizeof (struct section_offsets) \ | |
830 | + sizeof (((struct section_offsets *) 0)->offsets) * (SECT_OFF_MAX-1)) | |
831 | ||
a960f249 | 832 | /* Each source file or header is represented by a struct symtab. |
c906108c SS |
833 | These objects are chained through the `next' field. */ |
834 | ||
835 | struct symtab | |
17c5ed2c | 836 | { |
c906108c | 837 | |
17c5ed2c | 838 | /* Chain of all existing symtabs. */ |
c906108c | 839 | |
17c5ed2c | 840 | struct symtab *next; |
c906108c | 841 | |
17c5ed2c DC |
842 | /* List of all symbol scope blocks for this symtab. May be shared |
843 | between different symtabs (and normally is for all the symtabs | |
844 | in a given compilation unit). */ | |
c906108c | 845 | |
17c5ed2c | 846 | struct blockvector *blockvector; |
c906108c | 847 | |
17c5ed2c DC |
848 | /* Table mapping core addresses to line numbers for this file. |
849 | Can be NULL if none. Never shared between different symtabs. */ | |
c906108c | 850 | |
17c5ed2c | 851 | struct linetable *linetable; |
c906108c | 852 | |
17c5ed2c DC |
853 | /* Section in objfile->section_offsets for the blockvector and |
854 | the linetable. Probably always SECT_OFF_TEXT. */ | |
c906108c | 855 | |
17c5ed2c | 856 | int block_line_section; |
c906108c | 857 | |
17c5ed2c DC |
858 | /* If several symtabs share a blockvector, exactly one of them |
859 | should be designated the primary, so that the blockvector | |
860 | is relocated exactly once by objfile_relocate. */ | |
c906108c | 861 | |
17c5ed2c | 862 | int primary; |
c906108c | 863 | |
17c5ed2c DC |
864 | /* The macro table for this symtab. Like the blockvector, this |
865 | may be shared between different symtabs --- and normally is for | |
866 | all the symtabs in a given compilation unit. */ | |
867 | struct macro_table *macro_table; | |
99d9066e | 868 | |
17c5ed2c | 869 | /* Name of this source file. */ |
c906108c | 870 | |
17c5ed2c | 871 | char *filename; |
c906108c | 872 | |
17c5ed2c | 873 | /* Directory in which it was compiled, or NULL if we don't know. */ |
c906108c | 874 | |
17c5ed2c | 875 | char *dirname; |
c906108c | 876 | |
17c5ed2c DC |
877 | /* This component says how to free the data we point to: |
878 | free_contents => do a tree walk and free each object. | |
879 | free_nothing => do nothing; some other symtab will free | |
880 | the data this one uses. | |
881 | free_linetable => free just the linetable. FIXME: Is this redundant | |
882 | with the primary field? */ | |
c906108c | 883 | |
17c5ed2c DC |
884 | enum free_code |
885 | { | |
886 | free_nothing, free_contents, free_linetable | |
887 | } | |
888 | free_code; | |
c906108c | 889 | |
17c5ed2c DC |
890 | /* Pointer to one block of storage to be freed, if nonzero. */ |
891 | /* This is IN ADDITION to the action indicated by free_code. */ | |
c5aa993b | 892 | |
17c5ed2c | 893 | char *free_ptr; |
c906108c | 894 | |
17c5ed2c | 895 | /* Total number of lines found in source file. */ |
c906108c | 896 | |
17c5ed2c | 897 | int nlines; |
c906108c | 898 | |
17c5ed2c DC |
899 | /* line_charpos[N] is the position of the (N-1)th line of the |
900 | source file. "position" means something we can lseek() to; it | |
901 | is not guaranteed to be useful any other way. */ | |
c906108c | 902 | |
17c5ed2c | 903 | int *line_charpos; |
c906108c | 904 | |
17c5ed2c | 905 | /* Language of this source file. */ |
c906108c | 906 | |
17c5ed2c | 907 | enum language language; |
c906108c | 908 | |
17c5ed2c DC |
909 | /* String that identifies the format of the debugging information, such |
910 | as "stabs", "dwarf 1", "dwarf 2", "coff", etc. This is mostly useful | |
911 | for automated testing of gdb but may also be information that is | |
912 | useful to the user. */ | |
c906108c | 913 | |
17c5ed2c | 914 | char *debugformat; |
c906108c | 915 | |
17c5ed2c | 916 | /* String of version information. May be zero. */ |
c906108c | 917 | |
17c5ed2c | 918 | char *version; |
c906108c | 919 | |
17c5ed2c DC |
920 | /* Full name of file as found by searching the source path. |
921 | NULL if not yet known. */ | |
c906108c | 922 | |
17c5ed2c | 923 | char *fullname; |
c906108c | 924 | |
17c5ed2c | 925 | /* Object file from which this symbol information was read. */ |
c906108c | 926 | |
17c5ed2c | 927 | struct objfile *objfile; |
c906108c | 928 | |
17c5ed2c | 929 | }; |
c906108c SS |
930 | |
931 | #define BLOCKVECTOR(symtab) (symtab)->blockvector | |
932 | #define LINETABLE(symtab) (symtab)->linetable | |
c906108c | 933 | \f |
c5aa993b | 934 | |
c906108c SS |
935 | /* Each source file that has not been fully read in is represented by |
936 | a partial_symtab. This contains the information on where in the | |
937 | executable the debugging symbols for a specific file are, and a | |
938 | list of names of global symbols which are located in this file. | |
939 | They are all chained on partial symtab lists. | |
940 | ||
941 | Even after the source file has been read into a symtab, the | |
942 | partial_symtab remains around. They are allocated on an obstack, | |
943 | psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks- | |
944 | style execution of a bunch of .o's. */ | |
945 | ||
946 | struct partial_symtab | |
17c5ed2c | 947 | { |
c906108c | 948 | |
17c5ed2c | 949 | /* Chain of all existing partial symtabs. */ |
c906108c | 950 | |
17c5ed2c | 951 | struct partial_symtab *next; |
c906108c | 952 | |
17c5ed2c | 953 | /* Name of the source file which this partial_symtab defines */ |
c906108c | 954 | |
17c5ed2c | 955 | char *filename; |
c906108c | 956 | |
17c5ed2c | 957 | /* Full path of the source file. NULL if not known. */ |
58d370e0 | 958 | |
17c5ed2c | 959 | char *fullname; |
58d370e0 | 960 | |
17c5ed2c | 961 | /* Information about the object file from which symbols should be read. */ |
c906108c | 962 | |
17c5ed2c | 963 | struct objfile *objfile; |
c906108c | 964 | |
17c5ed2c | 965 | /* Set of relocation offsets to apply to each section. */ |
c906108c | 966 | |
17c5ed2c | 967 | struct section_offsets *section_offsets; |
c906108c | 968 | |
17c5ed2c DC |
969 | /* Range of text addresses covered by this file; texthigh is the |
970 | beginning of the next section. */ | |
c906108c | 971 | |
17c5ed2c DC |
972 | CORE_ADDR textlow; |
973 | CORE_ADDR texthigh; | |
c906108c | 974 | |
17c5ed2c DC |
975 | /* Array of pointers to all of the partial_symtab's which this one |
976 | depends on. Since this array can only be set to previous or | |
977 | the current (?) psymtab, this dependency tree is guaranteed not | |
978 | to have any loops. "depends on" means that symbols must be read | |
979 | for the dependencies before being read for this psymtab; this is | |
980 | for type references in stabs, where if foo.c includes foo.h, declarations | |
981 | in foo.h may use type numbers defined in foo.c. For other debugging | |
982 | formats there may be no need to use dependencies. */ | |
c906108c | 983 | |
17c5ed2c | 984 | struct partial_symtab **dependencies; |
c906108c | 985 | |
17c5ed2c | 986 | int number_of_dependencies; |
c906108c | 987 | |
17c5ed2c DC |
988 | /* Global symbol list. This list will be sorted after readin to |
989 | improve access. Binary search will be the usual method of | |
990 | finding a symbol within it. globals_offset is an integer offset | |
991 | within global_psymbols[]. */ | |
c906108c | 992 | |
17c5ed2c DC |
993 | int globals_offset; |
994 | int n_global_syms; | |
c906108c | 995 | |
17c5ed2c DC |
996 | /* Static symbol list. This list will *not* be sorted after readin; |
997 | to find a symbol in it, exhaustive search must be used. This is | |
998 | reasonable because searches through this list will eventually | |
999 | lead to either the read in of a files symbols for real (assumed | |
1000 | to take a *lot* of time; check) or an error (and we don't care | |
1001 | how long errors take). This is an offset and size within | |
1002 | static_psymbols[]. */ | |
c906108c | 1003 | |
17c5ed2c DC |
1004 | int statics_offset; |
1005 | int n_static_syms; | |
c906108c | 1006 | |
17c5ed2c DC |
1007 | /* Pointer to symtab eventually allocated for this source file, 0 if |
1008 | !readin or if we haven't looked for the symtab after it was readin. */ | |
c906108c | 1009 | |
17c5ed2c | 1010 | struct symtab *symtab; |
c906108c | 1011 | |
17c5ed2c DC |
1012 | /* Pointer to function which will read in the symtab corresponding to |
1013 | this psymtab. */ | |
c906108c | 1014 | |
17c5ed2c | 1015 | void (*read_symtab) (struct partial_symtab *); |
c906108c | 1016 | |
17c5ed2c DC |
1017 | /* Information that lets read_symtab() locate the part of the symbol table |
1018 | that this psymtab corresponds to. This information is private to the | |
1019 | format-dependent symbol reading routines. For further detail examine | |
1020 | the various symbol reading modules. Should really be (void *) but is | |
1021 | (char *) as with other such gdb variables. (FIXME) */ | |
c906108c | 1022 | |
17c5ed2c | 1023 | char *read_symtab_private; |
c906108c | 1024 | |
17c5ed2c | 1025 | /* Non-zero if the symtab corresponding to this psymtab has been readin */ |
c906108c | 1026 | |
17c5ed2c DC |
1027 | unsigned char readin; |
1028 | }; | |
c906108c SS |
1029 | |
1030 | /* A fast way to get from a psymtab to its symtab (after the first time). */ | |
1031 | #define PSYMTAB_TO_SYMTAB(pst) \ | |
1032 | ((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst)) | |
c906108c | 1033 | \f |
c5aa993b | 1034 | |
c906108c | 1035 | /* The virtual function table is now an array of structures which have the |
a960f249 | 1036 | form { int16 offset, delta; void *pfn; }. |
c906108c SS |
1037 | |
1038 | In normal virtual function tables, OFFSET is unused. | |
1039 | DELTA is the amount which is added to the apparent object's base | |
1040 | address in order to point to the actual object to which the | |
1041 | virtual function should be applied. | |
1042 | PFN is a pointer to the virtual function. | |
1043 | ||
1044 | Note that this macro is g++ specific (FIXME). */ | |
c5aa993b | 1045 | |
c906108c SS |
1046 | #define VTBL_FNADDR_OFFSET 2 |
1047 | ||
c906108c SS |
1048 | /* External variables and functions for the objects described above. */ |
1049 | ||
c906108c SS |
1050 | /* See the comment in symfile.c about how current_objfile is used. */ |
1051 | ||
1052 | extern struct objfile *current_objfile; | |
1053 | ||
1054 | /* True if we are nested inside psymtab_to_symtab. */ | |
1055 | ||
1056 | extern int currently_reading_symtab; | |
1057 | ||
1058 | /* From utils.c. */ | |
1059 | extern int demangle; | |
1060 | extern int asm_demangle; | |
1061 | ||
1062 | /* symtab.c lookup functions */ | |
1063 | ||
1064 | /* lookup a symbol table by source file name */ | |
1065 | ||
1f8cc6db | 1066 | extern struct symtab *lookup_symtab (const char *); |
c906108c SS |
1067 | |
1068 | /* lookup a symbol by name (optional block, optional symtab) */ | |
1069 | ||
a14ed312 KB |
1070 | extern struct symbol *lookup_symbol (const char *, const struct block *, |
1071 | const namespace_enum, int *, | |
1072 | struct symtab **); | |
c906108c SS |
1073 | |
1074 | /* lookup a symbol by name, within a specified block */ | |
c5aa993b | 1075 | |
a14ed312 | 1076 | extern struct symbol *lookup_block_symbol (const struct block *, const char *, |
3121eff0 | 1077 | const char *, |
a14ed312 | 1078 | const namespace_enum); |
c906108c SS |
1079 | |
1080 | /* lookup a [struct, union, enum] by name, within a specified block */ | |
1081 | ||
a14ed312 | 1082 | extern struct type *lookup_struct (char *, struct block *); |
c906108c | 1083 | |
a14ed312 | 1084 | extern struct type *lookup_union (char *, struct block *); |
c906108c | 1085 | |
a14ed312 | 1086 | extern struct type *lookup_enum (char *, struct block *); |
c906108c SS |
1087 | |
1088 | /* lookup the function corresponding to the block */ | |
1089 | ||
a14ed312 | 1090 | extern struct symbol *block_function (struct block *); |
c906108c SS |
1091 | |
1092 | /* from blockframe.c: */ | |
1093 | ||
1094 | /* lookup the function symbol corresponding to the address */ | |
1095 | ||
a14ed312 | 1096 | extern struct symbol *find_pc_function (CORE_ADDR); |
c906108c SS |
1097 | |
1098 | /* lookup the function corresponding to the address and section */ | |
1099 | ||
a14ed312 | 1100 | extern struct symbol *find_pc_sect_function (CORE_ADDR, asection *); |
c5aa993b | 1101 | |
c906108c SS |
1102 | /* lookup function from address, return name, start addr and end addr */ |
1103 | ||
c5aa993b | 1104 | extern int |
a14ed312 | 1105 | find_pc_partial_function (CORE_ADDR, char **, CORE_ADDR *, CORE_ADDR *); |
c906108c | 1106 | |
a14ed312 | 1107 | extern void clear_pc_function_cache (void); |
c906108c | 1108 | |
5ae5f592 AC |
1109 | extern int find_pc_sect_partial_function (CORE_ADDR, asection *, |
1110 | char **, CORE_ADDR *, CORE_ADDR *); | |
c906108c SS |
1111 | |
1112 | /* from symtab.c: */ | |
1113 | ||
1114 | /* lookup partial symbol table by filename */ | |
1115 | ||
1f8cc6db | 1116 | extern struct partial_symtab *lookup_partial_symtab (const char *); |
c906108c SS |
1117 | |
1118 | /* lookup partial symbol table by address */ | |
1119 | ||
a14ed312 | 1120 | extern struct partial_symtab *find_pc_psymtab (CORE_ADDR); |
c906108c SS |
1121 | |
1122 | /* lookup partial symbol table by address and section */ | |
1123 | ||
a14ed312 | 1124 | extern struct partial_symtab *find_pc_sect_psymtab (CORE_ADDR, asection *); |
c906108c SS |
1125 | |
1126 | /* lookup full symbol table by address */ | |
1127 | ||
a14ed312 | 1128 | extern struct symtab *find_pc_symtab (CORE_ADDR); |
c906108c SS |
1129 | |
1130 | /* lookup full symbol table by address and section */ | |
1131 | ||
a14ed312 | 1132 | extern struct symtab *find_pc_sect_symtab (CORE_ADDR, asection *); |
c906108c SS |
1133 | |
1134 | /* lookup partial symbol by address */ | |
1135 | ||
a14ed312 KB |
1136 | extern struct partial_symbol *find_pc_psymbol (struct partial_symtab *, |
1137 | CORE_ADDR); | |
c906108c SS |
1138 | |
1139 | /* lookup partial symbol by address and section */ | |
1140 | ||
a14ed312 KB |
1141 | extern struct partial_symbol *find_pc_sect_psymbol (struct partial_symtab *, |
1142 | CORE_ADDR, asection *); | |
c906108c | 1143 | |
a14ed312 | 1144 | extern int find_pc_line_pc_range (CORE_ADDR, CORE_ADDR *, CORE_ADDR *); |
c906108c | 1145 | |
a14ed312 | 1146 | extern int contained_in (struct block *, struct block *); |
c906108c | 1147 | |
a14ed312 | 1148 | extern void reread_symbols (void); |
c906108c | 1149 | |
a14ed312 | 1150 | extern struct type *lookup_transparent_type (const char *); |
c906108c SS |
1151 | |
1152 | ||
1153 | /* Macro for name of symbol to indicate a file compiled with gcc. */ | |
1154 | #ifndef GCC_COMPILED_FLAG_SYMBOL | |
1155 | #define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled." | |
1156 | #endif | |
1157 | ||
1158 | /* Macro for name of symbol to indicate a file compiled with gcc2. */ | |
1159 | #ifndef GCC2_COMPILED_FLAG_SYMBOL | |
1160 | #define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled." | |
1161 | #endif | |
1162 | ||
1163 | /* Functions for dealing with the minimal symbol table, really a misc | |
1164 | address<->symbol mapping for things we don't have debug symbols for. */ | |
1165 | ||
a14ed312 KB |
1166 | extern void prim_record_minimal_symbol (const char *, CORE_ADDR, |
1167 | enum minimal_symbol_type, | |
1168 | struct objfile *); | |
c906108c SS |
1169 | |
1170 | extern struct minimal_symbol *prim_record_minimal_symbol_and_info | |
a14ed312 KB |
1171 | (const char *, CORE_ADDR, |
1172 | enum minimal_symbol_type, | |
1173 | char *info, int section, asection * bfd_section, struct objfile *); | |
c906108c | 1174 | |
a14ed312 | 1175 | extern unsigned int msymbol_hash_iw (const char *); |
9227b5eb | 1176 | |
a14ed312 | 1177 | extern unsigned int msymbol_hash (const char *); |
9227b5eb JB |
1178 | |
1179 | extern void | |
1180 | add_minsym_to_hash_table (struct minimal_symbol *sym, | |
1181 | struct minimal_symbol **table); | |
1182 | ||
a14ed312 KB |
1183 | extern struct minimal_symbol *lookup_minimal_symbol (const char *, |
1184 | const char *, | |
1185 | struct objfile *); | |
c906108c | 1186 | |
a14ed312 KB |
1187 | extern struct minimal_symbol *lookup_minimal_symbol_text (const char *, |
1188 | const char *, | |
1189 | struct objfile *); | |
c906108c | 1190 | |
a14ed312 KB |
1191 | struct minimal_symbol *lookup_minimal_symbol_solib_trampoline (const char *, |
1192 | const char *, | |
1193 | struct objfile | |
1194 | *); | |
c906108c | 1195 | |
a14ed312 | 1196 | extern struct minimal_symbol *lookup_minimal_symbol_by_pc (CORE_ADDR); |
c906108c | 1197 | |
a14ed312 KB |
1198 | extern struct minimal_symbol *lookup_minimal_symbol_by_pc_section (CORE_ADDR, |
1199 | asection | |
1200 | *); | |
c906108c | 1201 | |
a14ed312 KB |
1202 | extern struct minimal_symbol |
1203 | *lookup_solib_trampoline_symbol_by_pc (CORE_ADDR); | |
c906108c | 1204 | |
a14ed312 | 1205 | extern CORE_ADDR find_solib_trampoline_target (CORE_ADDR); |
c906108c | 1206 | |
a14ed312 | 1207 | extern void init_minimal_symbol_collection (void); |
c906108c | 1208 | |
56e290f4 | 1209 | extern struct cleanup *make_cleanup_discard_minimal_symbols (void); |
c906108c | 1210 | |
a14ed312 | 1211 | extern void install_minimal_symbols (struct objfile *); |
c906108c SS |
1212 | |
1213 | /* Sort all the minimal symbols in OBJFILE. */ | |
1214 | ||
a14ed312 | 1215 | extern void msymbols_sort (struct objfile *objfile); |
c906108c SS |
1216 | |
1217 | struct symtab_and_line | |
17c5ed2c DC |
1218 | { |
1219 | struct symtab *symtab; | |
1220 | asection *section; | |
1221 | /* Line number. Line numbers start at 1 and proceed through symtab->nlines. | |
1222 | 0 is never a valid line number; it is used to indicate that line number | |
1223 | information is not available. */ | |
1224 | int line; | |
1225 | ||
1226 | CORE_ADDR pc; | |
1227 | CORE_ADDR end; | |
1228 | }; | |
c906108c SS |
1229 | |
1230 | #define INIT_SAL(sal) { \ | |
1231 | (sal)->symtab = 0; \ | |
1232 | (sal)->section = 0; \ | |
1233 | (sal)->line = 0; \ | |
1234 | (sal)->pc = 0; \ | |
1235 | (sal)->end = 0; \ | |
1236 | } | |
1237 | ||
1238 | struct symtabs_and_lines | |
17c5ed2c DC |
1239 | { |
1240 | struct symtab_and_line *sals; | |
1241 | int nelts; | |
1242 | }; | |
c5aa993b | 1243 | \f |
c906108c SS |
1244 | |
1245 | ||
c906108c SS |
1246 | /* Some types and macros needed for exception catchpoints. |
1247 | Can't put these in target.h because symtab_and_line isn't | |
1248 | known there. This file will be included by breakpoint.c, | |
1249 | hppa-tdep.c, etc. */ | |
1250 | ||
1251 | /* Enums for exception-handling support */ | |
c5aa993b | 1252 | enum exception_event_kind |
17c5ed2c DC |
1253 | { |
1254 | EX_EVENT_THROW, | |
1255 | EX_EVENT_CATCH | |
1256 | }; | |
c906108c SS |
1257 | |
1258 | /* Type for returning info about an exception */ | |
c5aa993b | 1259 | struct exception_event_record |
17c5ed2c DC |
1260 | { |
1261 | enum exception_event_kind kind; | |
1262 | struct symtab_and_line throw_sal; | |
1263 | struct symtab_and_line catch_sal; | |
1264 | /* This may need to be extended in the future, if | |
1265 | some platforms allow reporting more information, | |
1266 | such as point of rethrow, type of exception object, | |
1267 | type expected by catch clause, etc. */ | |
1268 | }; | |
c906108c SS |
1269 | |
1270 | #define CURRENT_EXCEPTION_KIND (current_exception_event->kind) | |
1271 | #define CURRENT_EXCEPTION_CATCH_SAL (current_exception_event->catch_sal) | |
1272 | #define CURRENT_EXCEPTION_CATCH_LINE (current_exception_event->catch_sal.line) | |
1273 | #define CURRENT_EXCEPTION_CATCH_FILE (current_exception_event->catch_sal.symtab->filename) | |
1274 | #define CURRENT_EXCEPTION_CATCH_PC (current_exception_event->catch_sal.pc) | |
1275 | #define CURRENT_EXCEPTION_THROW_SAL (current_exception_event->throw_sal) | |
1276 | #define CURRENT_EXCEPTION_THROW_LINE (current_exception_event->throw_sal.line) | |
1277 | #define CURRENT_EXCEPTION_THROW_FILE (current_exception_event->throw_sal.symtab->filename) | |
1278 | #define CURRENT_EXCEPTION_THROW_PC (current_exception_event->throw_sal.pc) | |
1279 | \f | |
1280 | ||
1281 | /* Given a pc value, return line number it is in. Second arg nonzero means | |
1282 | if pc is on the boundary use the previous statement's line number. */ | |
1283 | ||
a14ed312 | 1284 | extern struct symtab_and_line find_pc_line (CORE_ADDR, int); |
c906108c SS |
1285 | |
1286 | /* Same function, but specify a section as well as an address */ | |
1287 | ||
a14ed312 | 1288 | extern struct symtab_and_line find_pc_sect_line (CORE_ADDR, asection *, int); |
c906108c SS |
1289 | |
1290 | /* Given an address, return the nearest symbol at or below it in memory. | |
1291 | Optionally return the symtab it's from through 2nd arg, and the | |
1292 | address in inferior memory of the symbol through 3rd arg. */ | |
1293 | ||
a14ed312 KB |
1294 | extern struct symbol *find_addr_symbol (CORE_ADDR, struct symtab **, |
1295 | CORE_ADDR *); | |
c906108c SS |
1296 | |
1297 | /* Given a symtab and line number, return the pc there. */ | |
1298 | ||
a14ed312 | 1299 | extern int find_line_pc (struct symtab *, int, CORE_ADDR *); |
c906108c | 1300 | |
c5aa993b | 1301 | extern int |
a14ed312 | 1302 | find_line_pc_range (struct symtab_and_line, CORE_ADDR *, CORE_ADDR *); |
c906108c | 1303 | |
a14ed312 | 1304 | extern void resolve_sal_pc (struct symtab_and_line *); |
c906108c SS |
1305 | |
1306 | /* Given a string, return the line specified by it. For commands like "list" | |
1307 | and "breakpoint". */ | |
1308 | ||
a14ed312 | 1309 | extern struct symtabs_and_lines decode_line_spec (char *, int); |
c906108c | 1310 | |
a14ed312 | 1311 | extern struct symtabs_and_lines decode_line_spec_1 (char *, int); |
c906108c | 1312 | |
c906108c SS |
1313 | /* Symmisc.c */ |
1314 | ||
a14ed312 | 1315 | void maintenance_print_symbols (char *, int); |
c906108c | 1316 | |
a14ed312 | 1317 | void maintenance_print_psymbols (char *, int); |
c906108c | 1318 | |
a14ed312 | 1319 | void maintenance_print_msymbols (char *, int); |
c906108c | 1320 | |
a14ed312 | 1321 | void maintenance_print_objfiles (char *, int); |
c906108c | 1322 | |
a14ed312 | 1323 | void maintenance_check_symtabs (char *, int); |
c906108c SS |
1324 | |
1325 | /* maint.c */ | |
1326 | ||
a14ed312 | 1327 | void maintenance_print_statistics (char *, int); |
c906108c | 1328 | |
a14ed312 | 1329 | extern void free_symtab (struct symtab *); |
c906108c SS |
1330 | |
1331 | /* Symbol-reading stuff in symfile.c and solib.c. */ | |
1332 | ||
a14ed312 | 1333 | extern struct symtab *psymtab_to_symtab (struct partial_symtab *); |
c906108c | 1334 | |
a14ed312 | 1335 | extern void clear_solib (void); |
c906108c | 1336 | |
c906108c SS |
1337 | /* source.c */ |
1338 | ||
a14ed312 | 1339 | extern int identify_source_line (struct symtab *, int, int, CORE_ADDR); |
c906108c | 1340 | |
a14ed312 | 1341 | extern void print_source_lines (struct symtab *, int, int, int); |
c906108c | 1342 | |
a14ed312 | 1343 | extern void forget_cached_source_info (void); |
c906108c | 1344 | |
a14ed312 | 1345 | extern void select_source_symtab (struct symtab *); |
c906108c | 1346 | |
a14ed312 | 1347 | extern char **make_symbol_completion_list (char *, char *); |
c906108c | 1348 | |
c94fdfd0 EZ |
1349 | extern char **make_file_symbol_completion_list (char *, char *, char *); |
1350 | ||
a14ed312 | 1351 | extern struct symbol **make_symbol_overload_list (struct symbol *); |
c906108c | 1352 | |
c94fdfd0 EZ |
1353 | extern char **make_source_files_completion_list (char *, char *); |
1354 | ||
c906108c SS |
1355 | /* symtab.c */ |
1356 | ||
a14ed312 | 1357 | extern struct partial_symtab *find_main_psymtab (void); |
c906108c | 1358 | |
50641945 FN |
1359 | extern struct symtab *find_line_symtab (struct symtab *, int, int *, int *); |
1360 | ||
17c5ed2c DC |
1361 | extern struct symtab_and_line find_function_start_sal (struct symbol *sym, |
1362 | int); | |
50641945 | 1363 | |
c906108c SS |
1364 | /* blockframe.c */ |
1365 | ||
a14ed312 | 1366 | extern struct blockvector *blockvector_for_pc (CORE_ADDR, int *); |
c906108c | 1367 | |
a14ed312 KB |
1368 | extern struct blockvector *blockvector_for_pc_sect (CORE_ADDR, asection *, |
1369 | int *, struct symtab *); | |
c906108c SS |
1370 | |
1371 | /* symfile.c */ | |
1372 | ||
a14ed312 | 1373 | extern void clear_symtab_users (void); |
c906108c | 1374 | |
a14ed312 | 1375 | extern enum language deduce_language_from_filename (char *); |
c906108c SS |
1376 | |
1377 | /* symtab.c */ | |
1378 | ||
a14ed312 | 1379 | extern int in_prologue (CORE_ADDR pc, CORE_ADDR func_start); |
c906108c | 1380 | |
a14ed312 KB |
1381 | extern struct symbol *fixup_symbol_section (struct symbol *, |
1382 | struct objfile *); | |
c906108c | 1383 | |
7a78d0ee KB |
1384 | extern struct partial_symbol *fixup_psymbol_section (struct partial_symbol |
1385 | *psym, | |
1386 | struct objfile *objfile); | |
1387 | ||
c906108c SS |
1388 | /* Symbol searching */ |
1389 | ||
1390 | /* When using search_symbols, a list of the following structs is returned. | |
7e73cedf | 1391 | Callers must free the search list using free_search_symbols! */ |
c906108c | 1392 | struct symbol_search |
17c5ed2c DC |
1393 | { |
1394 | /* The block in which the match was found. Could be, for example, | |
1395 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
1396 | int block; | |
c906108c | 1397 | |
17c5ed2c | 1398 | /* Information describing what was found. |
c906108c | 1399 | |
17c5ed2c DC |
1400 | If symtab abd symbol are NOT NULL, then information was found |
1401 | for this match. */ | |
1402 | struct symtab *symtab; | |
1403 | struct symbol *symbol; | |
c906108c | 1404 | |
17c5ed2c DC |
1405 | /* If msymbol is non-null, then a match was made on something for |
1406 | which only minimal_symbols exist. */ | |
1407 | struct minimal_symbol *msymbol; | |
c906108c | 1408 | |
17c5ed2c DC |
1409 | /* A link to the next match, or NULL for the end. */ |
1410 | struct symbol_search *next; | |
1411 | }; | |
c906108c | 1412 | |
a14ed312 KB |
1413 | extern void search_symbols (char *, namespace_enum, int, char **, |
1414 | struct symbol_search **); | |
1415 | extern void free_search_symbols (struct symbol_search *); | |
17c5ed2c DC |
1416 | extern struct cleanup *make_cleanup_free_search_symbols (struct symbol_search |
1417 | *); | |
c906108c | 1418 | |
51cc5b07 AC |
1419 | /* The name of the ``main'' function. |
1420 | FIXME: cagney/2001-03-20: Can't make main_name() const since some | |
1421 | of the calling code currently assumes that the string isn't | |
1422 | const. */ | |
1423 | extern void set_main_name (const char *name); | |
17c5ed2c | 1424 | extern /*const */ char *main_name (void); |
51cc5b07 | 1425 | |
c906108c | 1426 | #endif /* !defined(SYMTAB_H) */ |