Commit | Line | Data |
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bd5635a1 | 1 | /* Symbol table definitions for GDB. |
b0246b3b | 2 | Copyright (C) 1986, 1989, 1991, 1992 Free Software Foundation, Inc. |
bd5635a1 RP |
3 | |
4 | This file is part of GDB. | |
5 | ||
4a35d6e9 | 6 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 7 | it under the terms of the GNU General Public License as published by |
4a35d6e9 FF |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
bd5635a1 | 10 | |
4a35d6e9 | 11 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
4a35d6e9 FF |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
bd5635a1 RP |
19 | |
20 | #if !defined (SYMTAB_H) | |
21 | #define SYMTAB_H 1 | |
bd5635a1 RP |
22 | |
23 | /* Some definitions and declarations to go with use of obstacks. */ | |
2e4964ad FF |
24 | |
25 | #include "obstack.h" | |
bd5635a1 RP |
26 | #define obstack_chunk_alloc xmalloc |
27 | #define obstack_chunk_free free | |
bd5635a1 | 28 | |
2e4964ad | 29 | /* Define a structure for the information that is common to all symbol types, |
d63aae7f JK |
30 | including minimal symbols, partial symbols, and full symbols. In a |
31 | multilanguage environment, some language specific information may need to | |
32 | be recorded along with each symbol. */ | |
2e4964ad FF |
33 | |
34 | struct general_symbol_info | |
35 | { | |
36 | /* Name of the symbol. This is a required field. Storage for the name is | |
37 | allocated on the psymbol_obstack or symbol_obstack for the associated | |
38 | objfile. */ | |
39 | ||
40 | char *name; | |
41 | ||
fce30fa1 JK |
42 | /* Value of the symbol. Which member of this union to use, and what |
43 | it means, depends on what kind of symbol this is and its | |
44 | SYMBOL_CLASS. See comments there for more details. All of these | |
45 | are in host byte order (though what they point to might be in | |
46 | target byte order, e.g. LOC_CONST_BYTES). */ | |
2e4964ad FF |
47 | |
48 | union | |
49 | { | |
2e4964ad FF |
50 | long value; |
51 | ||
2e4964ad FF |
52 | struct block *block; |
53 | ||
2e4964ad FF |
54 | char *bytes; |
55 | ||
2e4964ad FF |
56 | CORE_ADDR address; |
57 | ||
58 | /* for opaque typedef struct chain */ | |
bd5635a1 | 59 | |
2e4964ad FF |
60 | struct symbol *chain; |
61 | } | |
62 | value; | |
63 | ||
d63aae7f JK |
64 | /* Record the source code language that applies to this symbol. |
65 | This is used to select one of the fields from the language specific | |
66 | union below. */ | |
2e4964ad | 67 | |
d63aae7f | 68 | enum language language; |
2e4964ad | 69 | |
d63aae7f JK |
70 | /* Since one and only one language can apply, wrap the language specific |
71 | information inside a union. */ | |
2e4964ad | 72 | |
d63aae7f JK |
73 | union |
74 | { | |
75 | struct cplus_specific /* For C++ */ | |
76 | { | |
77 | char *demangled_name; | |
78 | } cplus_specific; | |
79 | struct chill_specific /* For Chill */ | |
2e4964ad | 80 | { |
d63aae7f JK |
81 | char *demangled_name; |
82 | } chill_specific; | |
83 | } language_specific; | |
ca6a826d PS |
84 | |
85 | /* Which section is this symbol in? This is an index into | |
86 | section_offsets for this objfile. Negative means that the symbol | |
d63aae7f | 87 | does not get relocated relative to a section. |
b86a1b3b JK |
88 | Disclaimer: currently this is just used for xcoff, so don't |
89 | expect all symbol-reading code to set it correctly (the ELF code | |
90 | also tries to set it correctly). */ | |
d63aae7f | 91 | |
ca6a826d | 92 | int section; |
2e4964ad FF |
93 | }; |
94 | ||
95 | #define SYMBOL_NAME(symbol) (symbol)->ginfo.name | |
96 | #define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.value | |
97 | #define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address | |
98 | #define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes | |
99 | #define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block | |
100 | #define SYMBOL_VALUE_CHAIN(symbol) (symbol)->ginfo.value.chain | |
d63aae7f | 101 | #define SYMBOL_LANGUAGE(symbol) (symbol)->ginfo.language |
ca6a826d | 102 | #define SYMBOL_SECTION(symbol) (symbol)->ginfo.section |
ece2e98a JG |
103 | |
104 | #define SYMBOL_CPLUS_DEMANGLED_NAME(symbol) \ | |
d63aae7f | 105 | (symbol)->ginfo.language_specific.cplus_specific.demangled_name |
2e4964ad | 106 | |
ece2e98a | 107 | |
2e4964ad FF |
108 | extern int demangle; /* We reference it, so go ahead and declare it. */ |
109 | ||
ece2e98a JG |
110 | /* Macro that initializes the language dependent portion of a symbol |
111 | depending upon the language for the symbol. */ | |
112 | ||
113 | #define SYMBOL_INIT_LANGUAGE_SPECIFIC(symbol,language) \ | |
114 | do { \ | |
115 | SYMBOL_LANGUAGE (symbol) = language; \ | |
116 | if (SYMBOL_LANGUAGE (symbol) == language_cplus) \ | |
117 | { \ | |
118 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \ | |
119 | } \ | |
ece2e98a JG |
120 | else if (SYMBOL_LANGUAGE (symbol) == language_chill) \ |
121 | { \ | |
122 | SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \ | |
123 | } \ | |
ece2e98a JG |
124 | else \ |
125 | { \ | |
d63aae7f JK |
126 | memset (&(symbol)->ginfo.language_specific, 0, \ |
127 | sizeof ((symbol)->ginfo.language_specific)); \ | |
ece2e98a JG |
128 | } \ |
129 | } while (0) | |
130 | ||
131 | /* Macro that attempts to initialize the demangled name for a symbol, | |
132 | based on the language of that symbol. If the language is set to | |
133 | language_auto, it will attempt to find any demangling algorithm | |
134 | that works and then set the language appropriately. If no demangling | |
135 | of any kind is found, the language is set back to language_unknown, | |
136 | so we can avoid doing this work again the next time we encounter | |
137 | the symbol. Any required space to store the name is obtained from the | |
138 | specified obstack. */ | |
139 | ||
140 | #define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \ | |
141 | do { \ | |
142 | char *demangled = NULL; \ | |
143 | if (SYMBOL_LANGUAGE (symbol) == language_cplus \ | |
144 | || SYMBOL_LANGUAGE (symbol) == language_auto) \ | |
145 | { \ | |
146 | demangled = \ | |
147 | cplus_demangle (SYMBOL_NAME (symbol), DMGL_PARAMS | DMGL_ANSI);\ | |
148 | if (demangled != NULL) \ | |
149 | { \ | |
150 | SYMBOL_LANGUAGE (symbol) = language_cplus; \ | |
151 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \ | |
152 | obsavestring (demangled, strlen (demangled), (obstack)); \ | |
153 | free (demangled); \ | |
154 | } \ | |
155 | else \ | |
156 | { \ | |
157 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \ | |
158 | } \ | |
159 | } \ | |
ece2e98a JG |
160 | if (demangled == NULL \ |
161 | && (SYMBOL_LANGUAGE (symbol) == language_chill \ | |
162 | || SYMBOL_LANGUAGE (symbol) == language_auto)) \ | |
163 | { \ | |
164 | demangled = \ | |
165 | chill_demangle (SYMBOL_NAME (symbol)); \ | |
166 | if (demangled != NULL) \ | |
167 | { \ | |
168 | SYMBOL_LANGUAGE (symbol) = language_chill; \ | |
169 | SYMBOL_CHILL_DEMANGLED_NAME (symbol) = \ | |
170 | obsavestring (demangled, strlen (demangled), (obstack)); \ | |
171 | free (demangled); \ | |
172 | } \ | |
173 | else \ | |
174 | { \ | |
175 | SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \ | |
176 | } \ | |
177 | } \ | |
ece2e98a JG |
178 | if (SYMBOL_LANGUAGE (symbol) == language_auto) \ |
179 | { \ | |
180 | SYMBOL_LANGUAGE (symbol) = language_unknown; \ | |
181 | } \ | |
182 | } while (0) | |
183 | ||
184 | /* Macro that returns the demangled name for a symbol based on the language | |
185 | for that symbol. If no demangled name exists, returns NULL. */ | |
186 | ||
ece2e98a JG |
187 | #define SYMBOL_DEMANGLED_NAME(symbol) \ |
188 | (SYMBOL_LANGUAGE (symbol) == language_cplus \ | |
189 | ? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \ | |
190 | : (SYMBOL_LANGUAGE (symbol) == language_chill \ | |
191 | ? SYMBOL_CHILL_DEMANGLED_NAME (symbol) \ | |
192 | : NULL)) | |
193 | ||
5aefc1ca | 194 | #define SYMBOL_CHILL_DEMANGLED_NAME(symbol) \ |
d63aae7f | 195 | (symbol)->ginfo.language_specific.chill_specific.demangled_name |
ece2e98a | 196 | |
2e4964ad FF |
197 | /* Macro that returns the "natural source name" of a symbol. In C++ this is |
198 | the "demangled" form of the name if demangle is on and the "mangled" form | |
199 | of the name if demangle is off. In other languages this is just the | |
ece2e98a | 200 | symbol name. The result should never be NULL. */ |
2e4964ad | 201 | |
ece2e98a JG |
202 | #define SYMBOL_SOURCE_NAME(symbol) \ |
203 | (demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
204 | ? SYMBOL_DEMANGLED_NAME (symbol) \ | |
205 | : SYMBOL_NAME (symbol)) | |
2e4964ad FF |
206 | |
207 | /* Macro that returns the "natural assembly name" of a symbol. In C++ this is | |
208 | the "mangled" form of the name if demangle is off, or if demangle is on and | |
209 | asm_demangle is off. Otherwise if asm_demangle is on it is the "demangled" | |
ece2e98a JG |
210 | form. In other languages this is just the symbol name. The result should |
211 | never be NULL. */ | |
2e4964ad | 212 | |
ece2e98a JG |
213 | #define SYMBOL_LINKAGE_NAME(symbol) \ |
214 | (demangle && asm_demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
215 | ? SYMBOL_DEMANGLED_NAME (symbol) \ | |
216 | : SYMBOL_NAME (symbol)) | |
2e4964ad | 217 | |
54023465 JK |
218 | /* From utils.c. */ |
219 | extern int demangle; | |
220 | extern int asm_demangle; | |
221 | ||
2e4964ad FF |
222 | /* Macro that tests a symbol for a match against a specified name string. |
223 | First test the unencoded name, then looks for and test a C++ encoded | |
224 | name if it exists. Note that whitespace is ignored while attempting to | |
225 | match a C++ encoded name, so that "foo::bar(int,long)" is the same as | |
226 | "foo :: bar (int, long)". | |
227 | Evaluates to zero if the match fails, or nonzero if it succeeds. */ | |
228 | ||
ece2e98a JG |
229 | #define SYMBOL_MATCHES_NAME(symbol, name) \ |
230 | (STREQ (SYMBOL_NAME (symbol), (name)) \ | |
231 | || (SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
232 | && strcmp_iw (SYMBOL_DEMANGLED_NAME (symbol), (name)) == 0)) | |
2e4964ad FF |
233 | |
234 | /* Macro that tests a symbol for an re-match against the last compiled regular | |
235 | expression. First test the unencoded name, then look for and test a C++ | |
236 | encoded name if it exists. | |
237 | Evaluates to zero if the match fails, or nonzero if it succeeds. */ | |
238 | ||
ece2e98a JG |
239 | #define SYMBOL_MATCHES_REGEXP(symbol) \ |
240 | (re_exec (SYMBOL_NAME (symbol)) != 0 \ | |
241 | || (SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
242 | && re_exec (SYMBOL_DEMANGLED_NAME (symbol)) != 0)) | |
2e4964ad | 243 | |
b0246b3b | 244 | /* Define a simple structure used to hold some very basic information about |
2e4964ad FF |
245 | all defined global symbols (text, data, bss, abs, etc). The only required |
246 | information is the general_symbol_info. | |
247 | ||
248 | In many cases, even if a file was compiled with no special options for | |
249 | debugging at all, as long as was not stripped it will contain sufficient | |
250 | information to build a useful minimal symbol table using this structure. | |
251 | Even when a file contains enough debugging information to build a full | |
252 | symbol table, these minimal symbols are still useful for quickly mapping | |
253 | between names and addresses, and vice versa. They are also sometimes | |
254 | used to figure out what full symbol table entries need to be read in. */ | |
bd5635a1 | 255 | |
b0246b3b FF |
256 | struct minimal_symbol |
257 | { | |
bd5635a1 | 258 | |
fce30fa1 JK |
259 | /* The general symbol info required for all types of symbols. |
260 | ||
261 | The SYMBOL_VALUE_ADDRESS contains the address that this symbol | |
262 | corresponds to. */ | |
bd5635a1 | 263 | |
2e4964ad | 264 | struct general_symbol_info ginfo; |
bd5635a1 | 265 | |
b0246b3b FF |
266 | /* The info field is available for caching machine-specific information that |
267 | The AMD 29000 tdep.c uses it to remember things it has decoded from the | |
268 | instructions in the function header, so it doesn't have to rederive the | |
269 | info constantly (over a serial line). It is initialized to zero and | |
270 | stays that way until target-dependent code sets it. Storage for any data | |
271 | pointed to by this field should be allocated on the symbol_obstack for | |
272 | the associated objfile. The type would be "void *" except for reasons | |
273 | of compatibility with older compilers. This field is optional. */ | |
274 | ||
275 | char *info; | |
276 | ||
277 | /* Classification types for this symbol. These should be taken as "advisory | |
278 | only", since if gdb can't easily figure out a classification it simply | |
279 | selects mst_unknown. It may also have to guess when it can't figure out | |
280 | which is a better match between two types (mst_data versus mst_bss) for | |
281 | example. Since the minimal symbol info is sometimes derived from the | |
282 | BFD library's view of a file, we need to live with what information bfd | |
283 | supplies. */ | |
284 | ||
285 | enum minimal_symbol_type | |
bd5635a1 | 286 | { |
b0246b3b FF |
287 | mst_unknown = 0, /* Unknown type, the default */ |
288 | mst_text, /* Generally executable instructions */ | |
289 | mst_data, /* Generally initialized data */ | |
290 | mst_bss, /* Generally uninitialized data */ | |
313dd520 JK |
291 | mst_abs, /* Generally absolute (nonrelocatable) */ |
292 | /* For the mst_file* types, the names are only guaranteed to be unique | |
293 | within a given .o file. */ | |
294 | mst_file_text, /* Static version of mst_text */ | |
295 | mst_file_data, /* Static version of mst_data */ | |
296 | mst_file_bss /* Static version of mst_bss */ | |
b0246b3b | 297 | } type; |
d018c8a6 | 298 | |
bd5635a1 | 299 | }; |
7e258d18 | 300 | |
2e4964ad FF |
301 | #define MSYMBOL_INFO(msymbol) (msymbol)->info |
302 | #define MSYMBOL_TYPE(msymbol) (msymbol)->type | |
303 | ||
bd5635a1 RP |
304 | \f |
305 | /* All of the name-scope contours of the program | |
306 | are represented by `struct block' objects. | |
307 | All of these objects are pointed to by the blockvector. | |
308 | ||
309 | Each block represents one name scope. | |
310 | Each lexical context has its own block. | |
311 | ||
0b28c260 JK |
312 | The blockvector begins with some special blocks. |
313 | The GLOBAL_BLOCK contains all the symbols defined in this compilation | |
bd5635a1 | 314 | whose scope is the entire program linked together. |
0b28c260 | 315 | The STATIC_BLOCK contains all the symbols whose scope is the |
bd5635a1 | 316 | entire compilation excluding other separate compilations. |
0b28c260 | 317 | Blocks starting with the FIRST_LOCAL_BLOCK are not special. |
bd5635a1 RP |
318 | |
319 | Each block records a range of core addresses for the code that | |
0b28c260 | 320 | is in the scope of the block. The STATIC_BLOCK and GLOBAL_BLOCK |
bd5635a1 RP |
321 | give, for the range of code, the entire range of code produced |
322 | by the compilation that the symbol segment belongs to. | |
323 | ||
324 | The blocks appear in the blockvector | |
325 | in order of increasing starting-address, | |
326 | and, within that, in order of decreasing ending-address. | |
327 | ||
328 | This implies that within the body of one function | |
329 | the blocks appear in the order of a depth-first tree walk. */ | |
330 | ||
331 | struct blockvector | |
332 | { | |
333 | /* Number of blocks in the list. */ | |
334 | int nblocks; | |
335 | /* The blocks themselves. */ | |
336 | struct block *block[1]; | |
337 | }; | |
338 | ||
2e4964ad FF |
339 | #define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks |
340 | #define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n] | |
341 | ||
92a29b47 | 342 | /* Special block numbers */ |
2e4964ad FF |
343 | |
344 | #define GLOBAL_BLOCK 0 | |
345 | #define STATIC_BLOCK 1 | |
92a29b47 JG |
346 | #define FIRST_LOCAL_BLOCK 2 |
347 | ||
bd5635a1 RP |
348 | struct block |
349 | { | |
2e4964ad | 350 | |
0b28c260 | 351 | /* Addresses in the executable code that are in this block. */ |
2e4964ad FF |
352 | |
353 | CORE_ADDR startaddr; | |
354 | CORE_ADDR endaddr; | |
355 | ||
0b28c260 JK |
356 | /* The symbol that names this block, if the block is the body of a |
357 | function; otherwise, zero. */ | |
2e4964ad | 358 | |
bd5635a1 | 359 | struct symbol *function; |
2e4964ad FF |
360 | |
361 | /* The `struct block' for the containing block, or 0 if none. | |
0b28c260 JK |
362 | |
363 | The superblock of a top-level local block (i.e. a function in the | |
364 | case of C) is the STATIC_BLOCK. The superblock of the | |
365 | STATIC_BLOCK is the GLOBAL_BLOCK. */ | |
2e4964ad | 366 | |
bd5635a1 | 367 | struct block *superblock; |
2e4964ad | 368 | |
0b28c260 JK |
369 | /* Version of GCC used to compile the function corresponding |
370 | to this block, or 0 if not compiled with GCC. When possible, | |
371 | GCC should be compatible with the native compiler, or if that | |
372 | is not feasible, the differences should be fixed during symbol | |
373 | reading. As of 16 Apr 93, this flag is never used to distinguish | |
374 | between gcc2 and the native compiler. | |
375 | ||
376 | If there is no function corresponding to this block, this meaning | |
377 | of this flag is undefined. */ | |
2e4964ad | 378 | |
bd5635a1 | 379 | unsigned char gcc_compile_flag; |
2e4964ad | 380 | |
bd5635a1 | 381 | /* Number of local symbols. */ |
2e4964ad | 382 | |
bd5635a1 | 383 | int nsyms; |
2e4964ad | 384 | |
54023465 JK |
385 | /* The symbols. If some of them are arguments, then they must be |
386 | in the order in which we would like to print them. */ | |
2e4964ad | 387 | |
bd5635a1 RP |
388 | struct symbol *sym[1]; |
389 | }; | |
bd5635a1 | 390 | |
2e4964ad FF |
391 | #define BLOCK_START(bl) (bl)->startaddr |
392 | #define BLOCK_END(bl) (bl)->endaddr | |
393 | #define BLOCK_NSYMS(bl) (bl)->nsyms | |
394 | #define BLOCK_SYM(bl, n) (bl)->sym[n] | |
395 | #define BLOCK_FUNCTION(bl) (bl)->function | |
396 | #define BLOCK_SUPERBLOCK(bl) (bl)->superblock | |
397 | #define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag | |
bd5635a1 | 398 | |
54023465 JK |
399 | /* Nonzero if symbols of block BL should be sorted alphabetically. |
400 | Don't sort a block which corresponds to a function. If we did the | |
401 | sorting would have to preserve the order of the symbols for the | |
402 | arguments. */ | |
bd5635a1 | 403 | |
54023465 | 404 | #define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40 && BLOCK_FUNCTION (bl) == NULL) |
bd5635a1 | 405 | |
2e4964ad FF |
406 | \f |
407 | /* Represent one symbol name; a variable, constant, function or typedef. */ | |
bd5635a1 | 408 | |
2e4964ad FF |
409 | /* Different name spaces for symbols. Looking up a symbol specifies a |
410 | namespace and ignores symbol definitions in other name spaces. */ | |
411 | ||
bd5635a1 RP |
412 | enum namespace |
413 | { | |
2e4964ad FF |
414 | /* UNDEF_NAMESPACE is used when a namespace has not been discovered or |
415 | none of the following apply. This usually indicates an error either | |
416 | in the symbol information or in gdb's handling of symbols. */ | |
417 | ||
418 | UNDEF_NAMESPACE, | |
419 | ||
420 | /* VAR_NAMESPACE is the usual namespace. In C, this contains variables, | |
421 | function names, typedef names and enum type values. */ | |
422 | ||
423 | VAR_NAMESPACE, | |
424 | ||
425 | /* STRUCT_NAMESPACE is used in C to hold struct, union and enum type names. | |
426 | Thus, if `struct foo' is used in a C program, it produces a symbol named | |
427 | `foo' in the STRUCT_NAMESPACE. */ | |
428 | ||
429 | STRUCT_NAMESPACE, | |
430 | ||
431 | /* LABEL_NAMESPACE may be used for names of labels (for gotos); | |
432 | currently it is not used and labels are not recorded at all. */ | |
433 | ||
434 | LABEL_NAMESPACE | |
bd5635a1 RP |
435 | }; |
436 | ||
437 | /* An address-class says where to find the value of a symbol. */ | |
438 | ||
439 | enum address_class | |
440 | { | |
2e4964ad FF |
441 | /* Not used; catches errors */ |
442 | ||
443 | LOC_UNDEF, | |
444 | ||
445 | /* Value is constant int SYMBOL_VALUE, host byteorder */ | |
446 | ||
447 | LOC_CONST, | |
448 | ||
449 | /* Value is at fixed address SYMBOL_VALUE_ADDRESS */ | |
450 | ||
451 | LOC_STATIC, | |
452 | ||
fce30fa1 | 453 | /* Value is in register. SYMBOL_VALUE is the register number. */ |
2e4964ad FF |
454 | |
455 | LOC_REGISTER, | |
456 | ||
fce30fa1 | 457 | /* It's an argument; the value is at SYMBOL_VALUE offset in arglist. */ |
2e4964ad FF |
458 | |
459 | LOC_ARG, | |
460 | ||
5afa2040 | 461 | /* Value address is at SYMBOL_VALUE offset in arglist. */ |
2e4964ad FF |
462 | |
463 | LOC_REF_ARG, | |
464 | ||
fce30fa1 JK |
465 | /* Value is in register number SYMBOL_VALUE. Just like LOC_REGISTER |
466 | except this is an argument. Probably the cleaner way to handle | |
467 | this would be to separate address_class (which would include | |
468 | separate ARG and LOCAL to deal with FRAME_ARGS_ADDRESS versus | |
469 | FRAME_LOCALS_ADDRESS), and an is_argument flag. | |
0b28c260 JK |
470 | |
471 | For some symbol formats (stabs, for some compilers at least), | |
5afa2040 JK |
472 | the compiler generates two symbols, an argument and a register. |
473 | In some cases we combine them to a single LOC_REGPARM in symbol | |
9c5c2722 JK |
474 | reading, but currently not for all cases (e.g. it's passed on the |
475 | stack and then loaded into a register). */ | |
2e4964ad FF |
476 | |
477 | LOC_REGPARM, | |
478 | ||
5afa2040 JK |
479 | /* Value is in specified register. Just like LOC_REGPARM except the |
480 | register holds the address of the argument instead of the argument | |
481 | itself. This is currently used for the passing of structs and unions | |
b9298844 JK |
482 | on sparc and hppa. It is also used for call by reference where the |
483 | address is in a register, at least by mipsread.c. */ | |
5afa2040 JK |
484 | |
485 | LOC_REGPARM_ADDR, | |
486 | ||
fce30fa1 | 487 | /* Value is a local variable at SYMBOL_VALUE offset in stack frame. */ |
2e4964ad FF |
488 | |
489 | LOC_LOCAL, | |
490 | ||
491 | /* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace | |
492 | STRUCT_NAMESPACE all have this class. */ | |
493 | ||
494 | LOC_TYPEDEF, | |
495 | ||
496 | /* Value is address SYMBOL_VALUE_ADDRESS in the code */ | |
497 | ||
498 | LOC_LABEL, | |
499 | ||
fce30fa1 JK |
500 | /* In a symbol table, value is SYMBOL_BLOCK_VALUE of a `struct block'. |
501 | In a partial symbol table, SYMBOL_VALUE_ADDRESS is the start address | |
502 | of the block. Function names have this class. */ | |
2e4964ad FF |
503 | |
504 | LOC_BLOCK, | |
505 | ||
ca6a826d | 506 | /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_BYTES, in |
2e4964ad FF |
507 | target byte order. */ |
508 | ||
509 | LOC_CONST_BYTES, | |
510 | ||
fce30fa1 JK |
511 | /* Value is arg at SYMBOL_VALUE offset in stack frame. Differs from |
512 | LOC_LOCAL in that symbol is an argument; differs from LOC_ARG in | |
513 | that we find it in the frame (FRAME_LOCALS_ADDRESS), not in the | |
514 | arglist (FRAME_ARGS_ADDRESS). Added for i960, which passes args | |
515 | in regs then copies to frame. */ | |
2e4964ad | 516 | |
ca6a826d PS |
517 | LOC_LOCAL_ARG, |
518 | ||
a1c8d76e JK |
519 | /* Value is at SYMBOL_VALUE offset from the current value of |
520 | register number SYMBOL_BASEREG. This exists mainly for the same | |
521 | things that LOC_LOCAL and LOC_ARG do; but we need to do this | |
522 | instead because on 88k DWARF gives us the offset from the | |
523 | frame/stack pointer, rather than the offset from the "canonical | |
524 | frame address" used by COFF, stabs, etc., and we don't know how | |
525 | to convert between these until we start examining prologues. | |
526 | ||
c438b3af JK |
527 | Note that LOC_BASEREG is much less general than a DWARF expression. |
528 | We don't need the generality (at least not yet), and storing a general | |
529 | DWARF expression would presumably take up more space than the existing | |
530 | scheme. */ | |
a1c8d76e JK |
531 | |
532 | LOC_BASEREG, | |
533 | ||
534 | /* Same as LOC_BASEREG but it is an argument. */ | |
535 | ||
536 | LOC_BASEREG_ARG, | |
537 | ||
ca6a826d | 538 | /* The variable does not actually exist in the program. |
fce30fa1 | 539 | The value is ignored. */ |
2e4964ad | 540 | |
ca6a826d | 541 | LOC_OPTIMIZED_OUT |
bd5635a1 RP |
542 | }; |
543 | ||
544 | struct symbol | |
545 | { | |
2e4964ad FF |
546 | |
547 | /* The general symbol info required for all types of symbols. */ | |
548 | ||
549 | struct general_symbol_info ginfo; | |
550 | ||
bd5635a1 | 551 | /* Name space code. */ |
2e4964ad | 552 | |
bd5635a1 | 553 | enum namespace namespace; |
2e4964ad | 554 | |
bd5635a1 | 555 | /* Address class */ |
2e4964ad | 556 | |
bd5635a1 | 557 | enum address_class class; |
2e4964ad | 558 | |
bd5635a1 | 559 | /* Data type of value */ |
2e4964ad | 560 | |
bd5635a1 RP |
561 | struct type *type; |
562 | ||
2e4964ad FF |
563 | /* Line number of definition. FIXME: Should we really make the assumption |
564 | that nobody will try to debug files longer than 64K lines? What about | |
565 | machine generated programs? */ | |
566 | ||
bd5635a1 RP |
567 | unsigned short line; |
568 | ||
252f6c65 FF |
569 | /* Some symbols require an additional value to be recorded on a per- |
570 | symbol basis. Stash those values here. */ | |
2e4964ad | 571 | |
252f6c65 FF |
572 | union |
573 | { | |
a1c8d76e JK |
574 | /* Used by LOC_BASEREG and LOC_BASEREG_ARG. */ |
575 | short basereg; | |
252f6c65 FF |
576 | } |
577 | aux_value; | |
2e4964ad | 578 | |
bd5635a1 RP |
579 | }; |
580 | ||
2e4964ad FF |
581 | #define SYMBOL_NAMESPACE(symbol) (symbol)->namespace |
582 | #define SYMBOL_CLASS(symbol) (symbol)->class | |
583 | #define SYMBOL_TYPE(symbol) (symbol)->type | |
584 | #define SYMBOL_LINE(symbol) (symbol)->line | |
a1c8d76e | 585 | #define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg |
2e4964ad | 586 | \f |
bd5635a1 RP |
587 | /* A partial_symbol records the name, namespace, and address class of |
588 | symbols whose types we have not parsed yet. For functions, it also | |
589 | contains their memory address, so we can find them from a PC value. | |
590 | Each partial_symbol sits in a partial_symtab, all of which are chained | |
b0246b3b | 591 | on a partial symtab list and which points to the corresponding |
bd5635a1 RP |
592 | normal symtab once the partial_symtab has been referenced. */ |
593 | ||
594 | struct partial_symbol | |
595 | { | |
2e4964ad FF |
596 | |
597 | /* The general symbol info required for all types of symbols. */ | |
598 | ||
599 | struct general_symbol_info ginfo; | |
600 | ||
bd5635a1 | 601 | /* Name space code. */ |
2e4964ad | 602 | |
bd5635a1 | 603 | enum namespace namespace; |
2e4964ad | 604 | |
bd5635a1 | 605 | /* Address class (for info_symbols) */ |
2e4964ad | 606 | |
bd5635a1 | 607 | enum address_class class; |
2e4964ad | 608 | |
bd5635a1 | 609 | }; |
2e4964ad FF |
610 | |
611 | #define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace | |
612 | #define PSYMBOL_CLASS(psymbol) (psymbol)->class | |
613 | ||
bd5635a1 | 614 | \f |
2e4964ad FF |
615 | /* Source-file information. This describes the relation between source files, |
616 | ine numbers and addresses in the program text. */ | |
bd5635a1 RP |
617 | |
618 | struct sourcevector | |
619 | { | |
620 | int length; /* Number of source files described */ | |
621 | struct source *source[1]; /* Descriptions of the files */ | |
622 | }; | |
623 | ||
624 | /* Each item represents a line-->pc (or the reverse) mapping. This is | |
625 | somewhat more wasteful of space than one might wish, but since only | |
626 | the files which are actually debugged are read in to core, we don't | |
ece2e98a | 627 | waste much space. */ |
bd5635a1 RP |
628 | |
629 | struct linetable_entry | |
630 | { | |
631 | int line; | |
632 | CORE_ADDR pc; | |
633 | }; | |
634 | ||
c438b3af JK |
635 | /* The order of entries in the linetable is significant. They should |
636 | be sorted by increasing values of the pc field. If there is more than | |
637 | one entry for a given pc, then I'm not sure what should happen (and | |
638 | I not sure whether we currently handle it the best way). | |
b9298844 | 639 | |
c438b3af | 640 | Example: a C for statement generally looks like this |
b9298844 JK |
641 | |
642 | 10 0x100 - for the init/test part of a for stmt. | |
643 | 20 0x200 | |
644 | 30 0x300 | |
645 | 10 0x400 - for the increment part of a for stmt. | |
646 | ||
c438b3af | 647 | */ |
b9298844 | 648 | |
bd5635a1 RP |
649 | struct linetable |
650 | { | |
651 | int nitems; | |
c438b3af JK |
652 | |
653 | /* Actually NITEMS elements. If you don't like this use of the | |
654 | `struct hack', you can shove it up your ANSI (seriously, if the | |
655 | committee tells us how to do it, we can probably go along). */ | |
bd5635a1 RP |
656 | struct linetable_entry item[1]; |
657 | }; | |
658 | ||
659 | /* All the information on one source file. */ | |
660 | ||
661 | struct source | |
662 | { | |
663 | char *name; /* Name of file */ | |
664 | struct linetable contents; | |
665 | }; | |
666 | ||
2670f34d JG |
667 | /* How to relocate the symbols from each section in a symbol file. |
668 | Each struct contains an array of offsets. | |
669 | The ordering and meaning of the offsets is file-type-dependent; | |
670 | typically it is indexed by section numbers or symbol types or | |
671 | something like that. | |
672 | ||
673 | To give us flexibility in changing the internal representation | |
674 | of these offsets, the ANOFFSET macro must be used to insert and | |
675 | extract offset values in the struct. */ | |
676 | ||
677 | struct section_offsets | |
678 | { | |
679 | CORE_ADDR offsets[1]; /* As many as needed. */ | |
680 | }; | |
681 | ||
682 | #define ANOFFSET(secoff, whichone) (secoff->offsets[whichone]) | |
683 | ||
b86a1b3b | 684 | /* Each source file or header is represented by a struct symtab. |
bd5635a1 RP |
685 | These objects are chained through the `next' field. */ |
686 | ||
687 | struct symtab | |
688 | { | |
2e4964ad | 689 | |
bd5635a1 | 690 | /* Chain of all existing symtabs. */ |
2e4964ad | 691 | |
bd5635a1 | 692 | struct symtab *next; |
2e4964ad | 693 | |
b86a1b3b JK |
694 | /* List of all symbol scope blocks for this symtab. May be shared |
695 | between different symtabs (and normally is for all the symtabs | |
696 | in a given compilation unit). */ | |
2e4964ad | 697 | |
bd5635a1 | 698 | struct blockvector *blockvector; |
2e4964ad | 699 | |
4137c5fc | 700 | /* Table mapping core addresses to line numbers for this file. |
b86a1b3b | 701 | Can be NULL if none. Never shared between different symtabs. */ |
2e4964ad | 702 | |
bd5635a1 | 703 | struct linetable *linetable; |
2e4964ad | 704 | |
ca6a826d PS |
705 | /* Section in objfile->section_offsets for the blockvector and |
706 | the linetable. */ | |
707 | ||
708 | int block_line_section; | |
709 | ||
710 | /* If several symtabs share a blockvector, exactly one of them | |
711 | should be designed the primary, so that the blockvector | |
712 | is relocated exactly once by objfile_relocate. */ | |
713 | ||
714 | int primary; | |
715 | ||
bd5635a1 | 716 | /* Name of this source file. */ |
2e4964ad | 717 | |
bd5635a1 | 718 | char *filename; |
2e4964ad | 719 | |
bd5635a1 | 720 | /* Directory in which it was compiled, or NULL if we don't know. */ |
2e4964ad | 721 | |
bd5635a1 | 722 | char *dirname; |
2e4964ad | 723 | |
bd5635a1 RP |
724 | /* This component says how to free the data we point to: |
725 | free_contents => do a tree walk and free each object. | |
726 | free_nothing => do nothing; some other symtab will free | |
727 | the data this one uses. | |
b86a1b3b JK |
728 | free_linetable => free just the linetable. FIXME: Is this redundant |
729 | with the primary field? */ | |
2e4964ad FF |
730 | |
731 | enum free_code | |
732 | { | |
733 | free_nothing, free_contents, free_linetable | |
734 | } | |
735 | free_code; | |
736 | ||
bd5635a1 RP |
737 | /* Pointer to one block of storage to be freed, if nonzero. */ |
738 | /* This is IN ADDITION to the action indicated by free_code. */ | |
2e4964ad | 739 | |
bd5635a1 | 740 | char *free_ptr; |
2e4964ad | 741 | |
bd5635a1 | 742 | /* Total number of lines found in source file. */ |
2e4964ad | 743 | |
bd5635a1 | 744 | int nlines; |
2e4964ad | 745 | |
025abdfb JK |
746 | /* line_charpos[N] is the position of the (N-1)th line of the |
747 | source file. "position" means something we can lseek() to; it | |
748 | is not guaranteed to be useful any other way. */ | |
2e4964ad | 749 | |
bd5635a1 | 750 | int *line_charpos; |
2e4964ad | 751 | |
bd5635a1 | 752 | /* Language of this source file. */ |
2e4964ad | 753 | |
bd5635a1 | 754 | enum language language; |
2e4964ad | 755 | |
bd5635a1 | 756 | /* String of version information. May be zero. */ |
2e4964ad | 757 | |
bd5635a1 | 758 | char *version; |
2e4964ad | 759 | |
bd5635a1 | 760 | /* Full name of file as found by searching the source path. |
2e4964ad FF |
761 | NULL if not yet known. */ |
762 | ||
bd5635a1 | 763 | char *fullname; |
8aa13b87 | 764 | |
a048c8f5 | 765 | /* Object file from which this symbol information was read. */ |
2e4964ad | 766 | |
a048c8f5 | 767 | struct objfile *objfile; |
a048c8f5 | 768 | |
8aa13b87 JK |
769 | /* Anything extra for this symtab. This is for target machines |
770 | with special debugging info of some sort (which cannot just | |
771 | be represented in a normal symtab). */ | |
2e4964ad | 772 | |
8aa13b87 JK |
773 | #if defined (EXTRA_SYMTAB_INFO) |
774 | EXTRA_SYMTAB_INFO | |
775 | #endif | |
2e4964ad | 776 | |
bd5635a1 RP |
777 | }; |
778 | ||
2e4964ad FF |
779 | #define BLOCKVECTOR(symtab) (symtab)->blockvector |
780 | #define LINETABLE(symtab) (symtab)->linetable | |
781 | ||
782 | \f | |
bd5635a1 RP |
783 | /* Each source file that has not been fully read in is represented by |
784 | a partial_symtab. This contains the information on where in the | |
785 | executable the debugging symbols for a specific file are, and a | |
786 | list of names of global symbols which are located in this file. | |
b0246b3b | 787 | They are all chained on partial symtab lists. |
bd5635a1 RP |
788 | |
789 | Even after the source file has been read into a symtab, the | |
790 | partial_symtab remains around. They are allocated on an obstack, | |
791 | psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks- | |
792 | style execution of a bunch of .o's. */ | |
b0246b3b | 793 | |
bd5635a1 RP |
794 | struct partial_symtab |
795 | { | |
2e4964ad | 796 | |
bd5635a1 | 797 | /* Chain of all existing partial symtabs. */ |
2e4964ad | 798 | |
bd5635a1 | 799 | struct partial_symtab *next; |
2e4964ad | 800 | |
bd5635a1 | 801 | /* Name of the source file which this partial_symtab defines */ |
2e4964ad | 802 | |
bd5635a1 RP |
803 | char *filename; |
804 | ||
a048c8f5 | 805 | /* Information about the object file from which symbols should be read. */ |
2e4964ad | 806 | |
a048c8f5 | 807 | struct objfile *objfile; |
a048c8f5 | 808 | |
2670f34d | 809 | /* Set of relocation offsets to apply to each section. */ |
2e4964ad | 810 | |
2670f34d JG |
811 | struct section_offsets *section_offsets; |
812 | ||
bd5635a1 RP |
813 | /* Range of text addresses covered by this file; texthigh is the |
814 | beginning of the next section. */ | |
2e4964ad FF |
815 | |
816 | CORE_ADDR textlow; | |
817 | CORE_ADDR texthigh; | |
818 | ||
bd5635a1 RP |
819 | /* Array of pointers to all of the partial_symtab's which this one |
820 | depends on. Since this array can only be set to previous or | |
821 | the current (?) psymtab, this dependency tree is guaranteed not | |
d63aae7f JK |
822 | to have any loops. "depends on" means that symbols must be read |
823 | for the dependencies before being read for this psymtab; this is | |
824 | for type references in stabs, where if foo.c includes foo.h, declarations | |
825 | in foo.h may use type numbers defined in foo.c. For other debugging | |
826 | formats there may be no need to use dependencies. */ | |
2e4964ad | 827 | |
bd5635a1 | 828 | struct partial_symtab **dependencies; |
2e4964ad | 829 | |
bd5635a1 | 830 | int number_of_dependencies; |
2e4964ad | 831 | |
bd5635a1 RP |
832 | /* Global symbol list. This list will be sorted after readin to |
833 | improve access. Binary search will be the usual method of | |
834 | finding a symbol within it. globals_offset is an integer offset | |
4a35d6e9 | 835 | within global_psymbols[]. */ |
2e4964ad FF |
836 | |
837 | int globals_offset; | |
838 | int n_global_syms; | |
839 | ||
bd5635a1 RP |
840 | /* Static symbol list. This list will *not* be sorted after readin; |
841 | to find a symbol in it, exhaustive search must be used. This is | |
842 | reasonable because searches through this list will eventually | |
843 | lead to either the read in of a files symbols for real (assumed | |
844 | to take a *lot* of time; check) or an error (and we don't care | |
4a35d6e9 FF |
845 | how long errors take). This is an offset and size within |
846 | static_psymbols[]. */ | |
2e4964ad FF |
847 | |
848 | int statics_offset; | |
849 | int n_static_syms; | |
850 | ||
bd5635a1 RP |
851 | /* Pointer to symtab eventually allocated for this source file, 0 if |
852 | !readin or if we haven't looked for the symtab after it was readin. */ | |
2e4964ad | 853 | |
bd5635a1 | 854 | struct symtab *symtab; |
2e4964ad | 855 | |
bd5635a1 RP |
856 | /* Pointer to function which will read in the symtab corresponding to |
857 | this psymtab. */ | |
2e4964ad | 858 | |
b0246b3b | 859 | void (*read_symtab) PARAMS ((struct partial_symtab *)); |
2e4964ad | 860 | |
4a35d6e9 FF |
861 | /* Information that lets read_symtab() locate the part of the symbol table |
862 | that this psymtab corresponds to. This information is private to the | |
863 | format-dependent symbol reading routines. For further detail examine | |
864 | the various symbol reading modules. Should really be (void *) but is | |
865 | (char *) as with other such gdb variables. (FIXME) */ | |
2e4964ad | 866 | |
4a35d6e9 | 867 | char *read_symtab_private; |
2e4964ad FF |
868 | |
869 | /* Non-zero if the symtab corresponding to this psymtab has been readin */ | |
870 | ||
bd5635a1 RP |
871 | unsigned char readin; |
872 | }; | |
873 | ||
874 | /* A fast way to get from a psymtab to its symtab (after the first time). */ | |
2e4964ad FF |
875 | #define PSYMTAB_TO_SYMTAB(pst) \ |
876 | ((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst)) | |
bd5635a1 | 877 | |
bd5635a1 | 878 | \f |
2e4964ad FF |
879 | /* The virtual function table is now an array of structures which have the |
880 | form { int16 offset, delta; void *pfn; }. | |
aec4cb91 | 881 | |
ea9cdf62 JK |
882 | In normal virtual function tables, OFFSET is unused. |
883 | DELTA is the amount which is added to the apparent object's base | |
884 | address in order to point to the actual object to which the | |
885 | virtual function should be applied. | |
0b28c260 JK |
886 | PFN is a pointer to the virtual function. |
887 | ||
888 | Note that this macro is g++ specific (FIXME). */ | |
bd5635a1 RP |
889 | |
890 | #define VTBL_FNADDR_OFFSET 2 | |
ea9cdf62 | 891 | |
2e4964ad FF |
892 | /* Macro that yields non-zero value iff NAME is the prefix for C++ operator |
893 | names. If you leave out the parenthesis here you will lose! | |
ea9cdf62 | 894 | Currently 'o' 'p' CPLUS_MARKER is used for both the symbol in the |
0b28c260 JK |
895 | symbol-file and the names in gdb's symbol table. |
896 | Note that this macro is g++ specific (FIXME). */ | |
ea9cdf62 | 897 | |
2e4964ad FF |
898 | #define OPNAME_PREFIX_P(NAME) \ |
899 | ((NAME)[0] == 'o' && (NAME)[1] == 'p' && (NAME)[2] == CPLUS_MARKER) | |
900 | ||
ca6a826d | 901 | /* Macro that yields non-zero value iff NAME is the prefix for C++ vtbl |
0b28c260 | 902 | names. Note that this macro is g++ specific (FIXME). */ |
ca6a826d | 903 | |
2e4964ad FF |
904 | #define VTBL_PREFIX_P(NAME) \ |
905 | ((NAME)[3] == CPLUS_MARKER && !strncmp ((NAME), "_vt", 3)) | |
906 | ||
ca6a826d | 907 | /* Macro that yields non-zero value iff NAME is the prefix for C++ destructor |
0b28c260 | 908 | names. Note that this macro is g++ specific (FIXME). */ |
ca6a826d PS |
909 | |
910 | #define DESTRUCTOR_PREFIX_P(NAME) \ | |
911 | ((NAME)[0] == '_' && (NAME)[1] == CPLUS_MARKER && (NAME)[2] == '_') | |
912 | ||
bd5635a1 | 913 | \f |
2e4964ad FF |
914 | /* External variables and functions for the objects described above. */ |
915 | ||
916 | /* This symtab variable specifies the current file for printing source lines */ | |
917 | ||
918 | extern struct symtab *current_source_symtab; | |
919 | ||
920 | /* This is the next line to print for listing source lines. */ | |
921 | ||
922 | extern int current_source_line; | |
923 | ||
924 | /* See the comment in symfile.c about how current_objfile is used. */ | |
925 | ||
926 | extern struct objfile *current_objfile; | |
bd5635a1 | 927 | |
b0246b3b FF |
928 | extern struct symtab * |
929 | lookup_symtab PARAMS ((char *)); | |
930 | ||
931 | extern struct symbol * | |
932 | lookup_symbol PARAMS ((const char *, const struct block *, | |
933 | const enum namespace, int *, struct symtab **)); | |
934 | ||
935 | extern struct symbol * | |
936 | lookup_block_symbol PARAMS ((const struct block *, const char *, | |
937 | const enum namespace)); | |
938 | ||
939 | extern struct type * | |
940 | lookup_struct PARAMS ((char *, struct block *)); | |
941 | ||
942 | extern struct type * | |
943 | lookup_union PARAMS ((char *, struct block *)); | |
944 | ||
945 | extern struct type * | |
946 | lookup_enum PARAMS ((char *, struct block *)); | |
947 | ||
948 | extern struct symbol * | |
949 | block_function PARAMS ((struct block *)); | |
950 | ||
951 | extern struct symbol * | |
952 | find_pc_function PARAMS ((CORE_ADDR)); | |
953 | ||
f1ed4330 JK |
954 | extern int find_pc_partial_function |
955 | PARAMS ((CORE_ADDR, char **, CORE_ADDR *, CORE_ADDR *)); | |
b0246b3b FF |
956 | |
957 | extern void | |
958 | clear_pc_function_cache PARAMS ((void)); | |
959 | ||
960 | extern struct partial_symtab * | |
961 | lookup_partial_symtab PARAMS ((char *)); | |
962 | ||
963 | extern struct partial_symtab * | |
964 | find_pc_psymtab PARAMS ((CORE_ADDR)); | |
965 | ||
966 | extern struct symtab * | |
967 | find_pc_symtab PARAMS ((CORE_ADDR)); | |
968 | ||
969 | extern struct partial_symbol * | |
970 | find_pc_psymbol PARAMS ((struct partial_symtab *, CORE_ADDR)); | |
971 | ||
972 | extern int | |
973 | find_pc_line_pc_range PARAMS ((CORE_ADDR, CORE_ADDR *, CORE_ADDR *)); | |
974 | ||
975 | extern int | |
976 | contained_in PARAMS ((struct block *, struct block *)); | |
977 | ||
978 | extern void | |
979 | reread_symbols PARAMS ((void)); | |
980 | ||
b0246b3b FF |
981 | /* Functions for dealing with the minimal symbol table, really a misc |
982 | address<->symbol mapping for things we don't have debug symbols for. */ | |
983 | ||
b0246b3b FF |
984 | extern void |
985 | prim_record_minimal_symbol PARAMS ((const char *, CORE_ADDR, | |
986 | enum minimal_symbol_type)); | |
987 | ||
51b57ded FF |
988 | extern void |
989 | prim_record_minimal_symbol_and_info PARAMS ((const char *, CORE_ADDR, | |
990 | enum minimal_symbol_type, | |
ca6a826d | 991 | char *info, int section)); |
51b57ded | 992 | |
b0246b3b FF |
993 | extern struct minimal_symbol * |
994 | lookup_minimal_symbol PARAMS ((const char *, struct objfile *)); | |
995 | ||
996 | extern struct minimal_symbol * | |
997 | lookup_minimal_symbol_by_pc PARAMS ((CORE_ADDR)); | |
998 | ||
b0246b3b FF |
999 | extern void |
1000 | init_minimal_symbol_collection PARAMS ((void)); | |
1001 | ||
1002 | extern void | |
1003 | discard_minimal_symbols PARAMS ((int)); | |
1004 | ||
1005 | extern void | |
1006 | install_minimal_symbols PARAMS ((struct objfile *)); | |
bd5635a1 RP |
1007 | |
1008 | struct symtab_and_line | |
1009 | { | |
1010 | struct symtab *symtab; | |
025abdfb JK |
1011 | |
1012 | /* Line number. Line numbers start at 1 and proceed through symtab->nlines. | |
1013 | 0 is never a valid line number; it is used to indicate that line number | |
1014 | information is not available. */ | |
bd5635a1 | 1015 | int line; |
025abdfb | 1016 | |
bd5635a1 RP |
1017 | CORE_ADDR pc; |
1018 | CORE_ADDR end; | |
1019 | }; | |
1020 | ||
1021 | struct symtabs_and_lines | |
1022 | { | |
1023 | struct symtab_and_line *sals; | |
1024 | int nelts; | |
1025 | }; | |
1026 | ||
2e4964ad FF |
1027 | /* Given a pc value, return line number it is in. Second arg nonzero means |
1028 | if pc is on the boundary use the previous statement's line number. */ | |
bd5635a1 | 1029 | |
b0246b3b FF |
1030 | extern struct symtab_and_line |
1031 | find_pc_line PARAMS ((CORE_ADDR, int)); | |
bd5635a1 RP |
1032 | |
1033 | /* Given a symtab and line number, return the pc there. */ | |
b0246b3b FF |
1034 | |
1035 | extern CORE_ADDR | |
1036 | find_line_pc PARAMS ((struct symtab *, int)); | |
1037 | ||
1038 | extern int | |
b86a1b3b JK |
1039 | find_line_pc_range PARAMS ((struct symtab_and_line, int, |
1040 | CORE_ADDR *, CORE_ADDR *)); | |
b0246b3b FF |
1041 | |
1042 | extern void | |
1043 | resolve_sal_pc PARAMS ((struct symtab_and_line *)); | |
bd5635a1 | 1044 | |
2e4964ad FF |
1045 | /* Given a string, return the line specified by it. For commands like "list" |
1046 | and "breakpoint". */ | |
bd5635a1 | 1047 | |
b0246b3b FF |
1048 | extern struct symtabs_and_lines |
1049 | decode_line_spec PARAMS ((char *, int)); | |
1050 | ||
1051 | extern struct symtabs_and_lines | |
1052 | decode_line_spec_1 PARAMS ((char *, int)); | |
1053 | ||
1054 | extern struct symtabs_and_lines | |
6f87ec4a | 1055 | decode_line_1 PARAMS ((char **, int, struct symtab *, int, char ***)); |
bd5635a1 | 1056 | |
5c43db6b | 1057 | /* Symmisc.c */ |
b0246b3b | 1058 | |
35fcebce PB |
1059 | #if MAINTENANCE_CMDS |
1060 | ||
1061 | void | |
1062 | maintenance_print_symbols PARAMS ((char *, int)); | |
1063 | ||
1064 | void | |
1065 | maintenance_print_psymbols PARAMS ((char *, int)); | |
1066 | ||
1067 | void | |
1068 | maintenance_print_msymbols PARAMS ((char *, int)); | |
1069 | ||
1070 | void | |
1071 | maintenance_print_objfiles PARAMS ((char *, int)); | |
1072 | ||
1073 | #endif | |
1074 | ||
b0246b3b FF |
1075 | extern void |
1076 | free_symtab PARAMS ((struct symtab *)); | |
5c43db6b | 1077 | |
bd5635a1 | 1078 | /* Symbol-reading stuff in symfile.c and solib.c. */ |
b0246b3b FF |
1079 | |
1080 | extern struct symtab * | |
1081 | psymtab_to_symtab PARAMS ((struct partial_symtab *)); | |
1082 | ||
1083 | extern void | |
1084 | clear_solib PARAMS ((void)); | |
1085 | ||
1086 | extern struct objfile * | |
1087 | symbol_file_add PARAMS ((char *, int, CORE_ADDR, int, int, int)); | |
bd5635a1 RP |
1088 | |
1089 | /* source.c */ | |
bd5635a1 | 1090 | |
b9298844 JK |
1091 | extern int frame_file_full_name; /* in stack.c */ |
1092 | ||
b0246b3b | 1093 | extern int |
b9298844 | 1094 | identify_source_line PARAMS ((struct symtab *, int, int, CORE_ADDR)); |
b0246b3b FF |
1095 | |
1096 | extern void | |
1097 | print_source_lines PARAMS ((struct symtab *, int, int, int)); | |
1098 | ||
1099 | extern void | |
1100 | forget_cached_source_info PARAMS ((void)); | |
1101 | ||
1102 | extern void | |
1103 | select_source_symtab PARAMS ((struct symtab *)); | |
1104 | ||
d63aae7f | 1105 | extern char **make_symbol_completion_list PARAMS ((char *, char *)); |
b0246b3b FF |
1106 | |
1107 | /* symtab.c */ | |
1108 | ||
1109 | extern struct partial_symtab * | |
1110 | find_main_psymtab PARAMS ((void)); | |
1111 | ||
1112 | /* blockframe.c */ | |
1113 | ||
1114 | extern struct blockvector * | |
1115 | blockvector_for_pc PARAMS ((CORE_ADDR, int *)); | |
bd5635a1 | 1116 | |
b0246b3b | 1117 | /* symfile.c */ |
4a35d6e9 | 1118 | |
313dd520 JK |
1119 | extern void |
1120 | clear_symtab_users PARAMS ((void)); | |
1121 | ||
b0246b3b FF |
1122 | extern enum language |
1123 | deduce_language_from_filename PARAMS ((char *)); | |
4a35d6e9 | 1124 | |
b0246b3b | 1125 | #endif /* !defined(SYMTAB_H) */ |