Commit | Line | Data |
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bd5635a1 | 1 | /* Symbol table definitions for GDB. |
ad3b8c4a JM |
2 | Copyright 1986, 89, 91, 92, 93, 94, 95, 96, 1998 |
3 | Free Software Foundation, Inc. | |
bd5635a1 RP |
4 | |
5 | This file is part of GDB. | |
6 | ||
4a35d6e9 | 7 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 8 | it under the terms of the GNU General Public License as published by |
4a35d6e9 FF |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
bd5635a1 | 11 | |
4a35d6e9 | 12 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
4a35d6e9 | 18 | along with this program; if not, write to the Free Software |
3f687c78 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
bd5635a1 RP |
20 | |
21 | #if !defined (SYMTAB_H) | |
22 | #define SYMTAB_H 1 | |
bd5635a1 RP |
23 | |
24 | /* Some definitions and declarations to go with use of obstacks. */ | |
2e4964ad FF |
25 | |
26 | #include "obstack.h" | |
bd5635a1 RP |
27 | #define obstack_chunk_alloc xmalloc |
28 | #define obstack_chunk_free free | |
2ad5709f | 29 | #include "bcache.h" |
bd5635a1 | 30 | |
2fe3b329 PS |
31 | /* Don't do this; it means that if some .o's are compiled with GNU C |
32 | and some are not (easy to do accidentally the way we configure | |
33 | things; also it is a pain to have to "make clean" every time you | |
34 | want to switch compilers), then GDB dies a horrible death. */ | |
35 | /* GNU C supports enums that are bitfields. Some compilers don't. */ | |
36 | #if 0 && defined(__GNUC__) && !defined(BYTE_BITFIELD) | |
21578747 JG |
37 | #define BYTE_BITFIELD :8; |
38 | #else | |
39 | #define BYTE_BITFIELD /*nothing*/ | |
40 | #endif | |
41 | ||
2e4964ad | 42 | /* Define a structure for the information that is common to all symbol types, |
d63aae7f JK |
43 | including minimal symbols, partial symbols, and full symbols. In a |
44 | multilanguage environment, some language specific information may need to | |
21578747 JG |
45 | be recorded along with each symbol. |
46 | ||
47 | These fields are ordered to encourage good packing, since we frequently | |
48 | have tens or hundreds of thousands of these. */ | |
2e4964ad FF |
49 | |
50 | struct general_symbol_info | |
51 | { | |
52 | /* Name of the symbol. This is a required field. Storage for the name is | |
53 | allocated on the psymbol_obstack or symbol_obstack for the associated | |
54 | objfile. */ | |
55 | ||
56 | char *name; | |
57 | ||
fce30fa1 JK |
58 | /* Value of the symbol. Which member of this union to use, and what |
59 | it means, depends on what kind of symbol this is and its | |
60 | SYMBOL_CLASS. See comments there for more details. All of these | |
61 | are in host byte order (though what they point to might be in | |
62 | target byte order, e.g. LOC_CONST_BYTES). */ | |
2e4964ad FF |
63 | |
64 | union | |
65 | { | |
2fe3b329 PS |
66 | /* The fact that this is a long not a LONGEST mainly limits the |
67 | range of a LOC_CONST. Since LOC_CONST_BYTES exists, I'm not | |
68 | sure that is a big deal. */ | |
fad466eb | 69 | long ivalue; |
2e4964ad | 70 | |
2e4964ad FF |
71 | struct block *block; |
72 | ||
2e4964ad FF |
73 | char *bytes; |
74 | ||
2e4964ad FF |
75 | CORE_ADDR address; |
76 | ||
77 | /* for opaque typedef struct chain */ | |
bd5635a1 | 78 | |
2e4964ad FF |
79 | struct symbol *chain; |
80 | } | |
81 | value; | |
82 | ||
d63aae7f JK |
83 | /* Since one and only one language can apply, wrap the language specific |
84 | information inside a union. */ | |
2e4964ad | 85 | |
d63aae7f JK |
86 | union |
87 | { | |
ad3b8c4a JM |
88 | struct cplus_specific /* For C++ */ |
89 | /* start-sanitize-java */ | |
90 | /* and Java */ | |
91 | /* end-sanitize-java */ | |
d63aae7f JK |
92 | { |
93 | char *demangled_name; | |
94 | } cplus_specific; | |
95 | struct chill_specific /* For Chill */ | |
2e4964ad | 96 | { |
d63aae7f JK |
97 | char *demangled_name; |
98 | } chill_specific; | |
99 | } language_specific; | |
ca6a826d | 100 | |
21578747 JG |
101 | /* Record the source code language that applies to this symbol. |
102 | This is used to select one of the fields from the language specific | |
103 | union above. */ | |
104 | ||
105 | enum language language BYTE_BITFIELD; | |
106 | ||
ca6a826d PS |
107 | /* Which section is this symbol in? This is an index into |
108 | section_offsets for this objfile. Negative means that the symbol | |
d63aae7f | 109 | does not get relocated relative to a section. |
b86a1b3b JK |
110 | Disclaimer: currently this is just used for xcoff, so don't |
111 | expect all symbol-reading code to set it correctly (the ELF code | |
112 | also tries to set it correctly). */ | |
d63aae7f | 113 | |
fb155ce3 | 114 | short section; |
56e327b3 FF |
115 | |
116 | /* The bfd section associated with this symbol. */ | |
117 | ||
118 | asection *bfd_section; | |
2e4964ad FF |
119 | }; |
120 | ||
56e327b3 FF |
121 | extern CORE_ADDR symbol_overlayed_address PARAMS((CORE_ADDR, asection *)); |
122 | ||
2e4964ad | 123 | #define SYMBOL_NAME(symbol) (symbol)->ginfo.name |
fad466eb | 124 | #define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.ivalue |
2e4964ad FF |
125 | #define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address |
126 | #define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes | |
127 | #define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block | |
128 | #define SYMBOL_VALUE_CHAIN(symbol) (symbol)->ginfo.value.chain | |
d63aae7f | 129 | #define SYMBOL_LANGUAGE(symbol) (symbol)->ginfo.language |
ca6a826d | 130 | #define SYMBOL_SECTION(symbol) (symbol)->ginfo.section |
56e327b3 | 131 | #define SYMBOL_BFD_SECTION(symbol) (symbol)->ginfo.bfd_section |
ece2e98a JG |
132 | |
133 | #define SYMBOL_CPLUS_DEMANGLED_NAME(symbol) \ | |
d63aae7f | 134 | (symbol)->ginfo.language_specific.cplus_specific.demangled_name |
2e4964ad | 135 | |
ece2e98a JG |
136 | /* Macro that initializes the language dependent portion of a symbol |
137 | depending upon the language for the symbol. */ | |
138 | ||
139 | #define SYMBOL_INIT_LANGUAGE_SPECIFIC(symbol,language) \ | |
140 | do { \ | |
141 | SYMBOL_LANGUAGE (symbol) = language; \ | |
d719efc6 | 142 | if (SYMBOL_LANGUAGE (symbol) == language_cplus \ |
ad3b8c4a JM |
143 | /* start-sanitize-java */ \ |
144 | || SYMBOL_LANGUAGE (symbol) == language_java \ | |
145 | /* end-sanitize-java */ \ | |
146 | ) \ | |
ece2e98a JG |
147 | { \ |
148 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \ | |
149 | } \ | |
ece2e98a JG |
150 | else if (SYMBOL_LANGUAGE (symbol) == language_chill) \ |
151 | { \ | |
152 | SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \ | |
153 | } \ | |
ece2e98a JG |
154 | else \ |
155 | { \ | |
d63aae7f JK |
156 | memset (&(symbol)->ginfo.language_specific, 0, \ |
157 | sizeof ((symbol)->ginfo.language_specific)); \ | |
ece2e98a JG |
158 | } \ |
159 | } while (0) | |
160 | ||
161 | /* Macro that attempts to initialize the demangled name for a symbol, | |
162 | based on the language of that symbol. If the language is set to | |
163 | language_auto, it will attempt to find any demangling algorithm | |
164 | that works and then set the language appropriately. If no demangling | |
165 | of any kind is found, the language is set back to language_unknown, | |
166 | so we can avoid doing this work again the next time we encounter | |
167 | the symbol. Any required space to store the name is obtained from the | |
168 | specified obstack. */ | |
169 | ||
170 | #define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \ | |
171 | do { \ | |
172 | char *demangled = NULL; \ | |
173 | if (SYMBOL_LANGUAGE (symbol) == language_cplus \ | |
174 | || SYMBOL_LANGUAGE (symbol) == language_auto) \ | |
175 | { \ | |
176 | demangled = \ | |
177 | cplus_demangle (SYMBOL_NAME (symbol), DMGL_PARAMS | DMGL_ANSI);\ | |
178 | if (demangled != NULL) \ | |
179 | { \ | |
180 | SYMBOL_LANGUAGE (symbol) = language_cplus; \ | |
181 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \ | |
182 | obsavestring (demangled, strlen (demangled), (obstack)); \ | |
183 | free (demangled); \ | |
184 | } \ | |
185 | else \ | |
186 | { \ | |
187 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \ | |
188 | } \ | |
189 | } \ | |
ad3b8c4a | 190 | /* start-sanitize-java */ \ |
d719efc6 DP |
191 | if (SYMBOL_LANGUAGE (symbol) == language_java) \ |
192 | { \ | |
193 | demangled = \ | |
194 | cplus_demangle (SYMBOL_NAME (symbol), \ | |
195 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); \ | |
196 | if (demangled != NULL) \ | |
197 | { \ | |
198 | SYMBOL_LANGUAGE (symbol) = language_java; \ | |
199 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \ | |
200 | obsavestring (demangled, strlen (demangled), (obstack)); \ | |
201 | free (demangled); \ | |
202 | } \ | |
203 | else \ | |
204 | { \ | |
205 | SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \ | |
206 | } \ | |
207 | } \ | |
ad3b8c4a | 208 | /* end-sanitize-java */ \ |
ece2e98a JG |
209 | if (demangled == NULL \ |
210 | && (SYMBOL_LANGUAGE (symbol) == language_chill \ | |
211 | || SYMBOL_LANGUAGE (symbol) == language_auto)) \ | |
212 | { \ | |
213 | demangled = \ | |
214 | chill_demangle (SYMBOL_NAME (symbol)); \ | |
215 | if (demangled != NULL) \ | |
216 | { \ | |
217 | SYMBOL_LANGUAGE (symbol) = language_chill; \ | |
218 | SYMBOL_CHILL_DEMANGLED_NAME (symbol) = \ | |
219 | obsavestring (demangled, strlen (demangled), (obstack)); \ | |
220 | free (demangled); \ | |
221 | } \ | |
222 | else \ | |
223 | { \ | |
224 | SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \ | |
225 | } \ | |
226 | } \ | |
ece2e98a JG |
227 | if (SYMBOL_LANGUAGE (symbol) == language_auto) \ |
228 | { \ | |
229 | SYMBOL_LANGUAGE (symbol) = language_unknown; \ | |
230 | } \ | |
231 | } while (0) | |
232 | ||
233 | /* Macro that returns the demangled name for a symbol based on the language | |
234 | for that symbol. If no demangled name exists, returns NULL. */ | |
235 | ||
ece2e98a JG |
236 | #define SYMBOL_DEMANGLED_NAME(symbol) \ |
237 | (SYMBOL_LANGUAGE (symbol) == language_cplus \ | |
ad3b8c4a | 238 | /* start-sanitize-java */ \ |
d719efc6 | 239 | || SYMBOL_LANGUAGE (symbol) == language_java \ |
ad3b8c4a | 240 | /* end-sanitize-java */ \ |
ece2e98a JG |
241 | ? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \ |
242 | : (SYMBOL_LANGUAGE (symbol) == language_chill \ | |
243 | ? SYMBOL_CHILL_DEMANGLED_NAME (symbol) \ | |
244 | : NULL)) | |
245 | ||
5aefc1ca | 246 | #define SYMBOL_CHILL_DEMANGLED_NAME(symbol) \ |
d63aae7f | 247 | (symbol)->ginfo.language_specific.chill_specific.demangled_name |
ece2e98a | 248 | |
2e4964ad FF |
249 | /* Macro that returns the "natural source name" of a symbol. In C++ this is |
250 | the "demangled" form of the name if demangle is on and the "mangled" form | |
251 | of the name if demangle is off. In other languages this is just the | |
ece2e98a | 252 | symbol name. The result should never be NULL. */ |
2e4964ad | 253 | |
ece2e98a JG |
254 | #define SYMBOL_SOURCE_NAME(symbol) \ |
255 | (demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
256 | ? SYMBOL_DEMANGLED_NAME (symbol) \ | |
257 | : SYMBOL_NAME (symbol)) | |
2e4964ad FF |
258 | |
259 | /* Macro that returns the "natural assembly name" of a symbol. In C++ this is | |
260 | the "mangled" form of the name if demangle is off, or if demangle is on and | |
261 | asm_demangle is off. Otherwise if asm_demangle is on it is the "demangled" | |
ece2e98a JG |
262 | form. In other languages this is just the symbol name. The result should |
263 | never be NULL. */ | |
2e4964ad | 264 | |
ece2e98a JG |
265 | #define SYMBOL_LINKAGE_NAME(symbol) \ |
266 | (demangle && asm_demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
267 | ? SYMBOL_DEMANGLED_NAME (symbol) \ | |
268 | : SYMBOL_NAME (symbol)) | |
2e4964ad FF |
269 | |
270 | /* Macro that tests a symbol for a match against a specified name string. | |
271 | First test the unencoded name, then looks for and test a C++ encoded | |
272 | name if it exists. Note that whitespace is ignored while attempting to | |
273 | match a C++ encoded name, so that "foo::bar(int,long)" is the same as | |
274 | "foo :: bar (int, long)". | |
275 | Evaluates to zero if the match fails, or nonzero if it succeeds. */ | |
276 | ||
ece2e98a JG |
277 | #define SYMBOL_MATCHES_NAME(symbol, name) \ |
278 | (STREQ (SYMBOL_NAME (symbol), (name)) \ | |
279 | || (SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
280 | && strcmp_iw (SYMBOL_DEMANGLED_NAME (symbol), (name)) == 0)) | |
2e4964ad FF |
281 | |
282 | /* Macro that tests a symbol for an re-match against the last compiled regular | |
283 | expression. First test the unencoded name, then look for and test a C++ | |
284 | encoded name if it exists. | |
285 | Evaluates to zero if the match fails, or nonzero if it succeeds. */ | |
286 | ||
ece2e98a JG |
287 | #define SYMBOL_MATCHES_REGEXP(symbol) \ |
288 | (re_exec (SYMBOL_NAME (symbol)) != 0 \ | |
289 | || (SYMBOL_DEMANGLED_NAME (symbol) != NULL \ | |
290 | && re_exec (SYMBOL_DEMANGLED_NAME (symbol)) != 0)) | |
2e4964ad | 291 | |
b0246b3b | 292 | /* Define a simple structure used to hold some very basic information about |
2e4964ad FF |
293 | all defined global symbols (text, data, bss, abs, etc). The only required |
294 | information is the general_symbol_info. | |
295 | ||
296 | In many cases, even if a file was compiled with no special options for | |
297 | debugging at all, as long as was not stripped it will contain sufficient | |
298 | information to build a useful minimal symbol table using this structure. | |
299 | Even when a file contains enough debugging information to build a full | |
300 | symbol table, these minimal symbols are still useful for quickly mapping | |
301 | between names and addresses, and vice versa. They are also sometimes | |
302 | used to figure out what full symbol table entries need to be read in. */ | |
bd5635a1 | 303 | |
b0246b3b FF |
304 | struct minimal_symbol |
305 | { | |
bd5635a1 | 306 | |
fce30fa1 JK |
307 | /* The general symbol info required for all types of symbols. |
308 | ||
309 | The SYMBOL_VALUE_ADDRESS contains the address that this symbol | |
310 | corresponds to. */ | |
bd5635a1 | 311 | |
2e4964ad | 312 | struct general_symbol_info ginfo; |
bd5635a1 | 313 | |
ad3b8c4a JM |
314 | /* The info field is available for caching machine-specific information |
315 | so it doesn't have to rederive the info constantly (over a serial line). | |
316 | It is initialized to zero and stays that way until target-dependent code | |
317 | sets it. Storage for any data pointed to by this field should be allo- | |
318 | cated on the symbol_obstack for the associated objfile. | |
319 | The type would be "void *" except for reasons of compatibility with older | |
320 | compilers. This field is optional. | |
321 | ||
322 | Currently, the AMD 29000 tdep.c uses it to remember things it has decoded | |
323 | from the instructions in the function header, and the MIPS-16 code uses | |
324 | it to identify 16-bit procedures. */ | |
b0246b3b FF |
325 | |
326 | char *info; | |
327 | ||
3f687c78 SG |
328 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING |
329 | /* Which source file is this symbol in? Only relevant for mst_file_*. */ | |
330 | char *filename; | |
331 | #endif | |
332 | ||
b0246b3b FF |
333 | /* Classification types for this symbol. These should be taken as "advisory |
334 | only", since if gdb can't easily figure out a classification it simply | |
335 | selects mst_unknown. It may also have to guess when it can't figure out | |
336 | which is a better match between two types (mst_data versus mst_bss) for | |
337 | example. Since the minimal symbol info is sometimes derived from the | |
338 | BFD library's view of a file, we need to live with what information bfd | |
339 | supplies. */ | |
340 | ||
341 | enum minimal_symbol_type | |
bd5635a1 | 342 | { |
b0246b3b FF |
343 | mst_unknown = 0, /* Unknown type, the default */ |
344 | mst_text, /* Generally executable instructions */ | |
345 | mst_data, /* Generally initialized data */ | |
346 | mst_bss, /* Generally uninitialized data */ | |
313dd520 | 347 | mst_abs, /* Generally absolute (nonrelocatable) */ |
2fe3b329 PS |
348 | /* GDB uses mst_solib_trampoline for the start address of a shared |
349 | library trampoline entry. Breakpoints for shared library functions | |
350 | are put there if the shared library is not yet loaded. | |
351 | After the shared library is loaded, lookup_minimal_symbol will | |
352 | prefer the minimal symbol from the shared library (usually | |
353 | a mst_text symbol) over the mst_solib_trampoline symbol, and the | |
354 | breakpoints will be moved to their true address in the shared | |
355 | library via breakpoint_re_set. */ | |
356 | mst_solib_trampoline, /* Shared library trampoline code */ | |
313dd520 JK |
357 | /* For the mst_file* types, the names are only guaranteed to be unique |
358 | within a given .o file. */ | |
359 | mst_file_text, /* Static version of mst_text */ | |
360 | mst_file_data, /* Static version of mst_data */ | |
361 | mst_file_bss /* Static version of mst_bss */ | |
21578747 | 362 | } type BYTE_BITFIELD; |
bd5635a1 | 363 | }; |
7e258d18 | 364 | |
2e4964ad FF |
365 | #define MSYMBOL_INFO(msymbol) (msymbol)->info |
366 | #define MSYMBOL_TYPE(msymbol) (msymbol)->type | |
367 | ||
bd5635a1 RP |
368 | \f |
369 | /* All of the name-scope contours of the program | |
370 | are represented by `struct block' objects. | |
371 | All of these objects are pointed to by the blockvector. | |
372 | ||
373 | Each block represents one name scope. | |
374 | Each lexical context has its own block. | |
375 | ||
0b28c260 JK |
376 | The blockvector begins with some special blocks. |
377 | The GLOBAL_BLOCK contains all the symbols defined in this compilation | |
bd5635a1 | 378 | whose scope is the entire program linked together. |
0b28c260 | 379 | The STATIC_BLOCK contains all the symbols whose scope is the |
bd5635a1 | 380 | entire compilation excluding other separate compilations. |
0b28c260 | 381 | Blocks starting with the FIRST_LOCAL_BLOCK are not special. |
bd5635a1 RP |
382 | |
383 | Each block records a range of core addresses for the code that | |
0b28c260 | 384 | is in the scope of the block. The STATIC_BLOCK and GLOBAL_BLOCK |
bd5635a1 RP |
385 | give, for the range of code, the entire range of code produced |
386 | by the compilation that the symbol segment belongs to. | |
387 | ||
388 | The blocks appear in the blockvector | |
389 | in order of increasing starting-address, | |
390 | and, within that, in order of decreasing ending-address. | |
391 | ||
392 | This implies that within the body of one function | |
393 | the blocks appear in the order of a depth-first tree walk. */ | |
394 | ||
395 | struct blockvector | |
396 | { | |
397 | /* Number of blocks in the list. */ | |
398 | int nblocks; | |
399 | /* The blocks themselves. */ | |
400 | struct block *block[1]; | |
401 | }; | |
402 | ||
2e4964ad FF |
403 | #define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks |
404 | #define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n] | |
405 | ||
92a29b47 | 406 | /* Special block numbers */ |
2e4964ad FF |
407 | |
408 | #define GLOBAL_BLOCK 0 | |
409 | #define STATIC_BLOCK 1 | |
92a29b47 JG |
410 | #define FIRST_LOCAL_BLOCK 2 |
411 | ||
bd5635a1 RP |
412 | struct block |
413 | { | |
2e4964ad | 414 | |
0b28c260 | 415 | /* Addresses in the executable code that are in this block. */ |
2e4964ad FF |
416 | |
417 | CORE_ADDR startaddr; | |
418 | CORE_ADDR endaddr; | |
419 | ||
0b28c260 JK |
420 | /* The symbol that names this block, if the block is the body of a |
421 | function; otherwise, zero. */ | |
2e4964ad | 422 | |
bd5635a1 | 423 | struct symbol *function; |
2e4964ad FF |
424 | |
425 | /* The `struct block' for the containing block, or 0 if none. | |
0b28c260 JK |
426 | |
427 | The superblock of a top-level local block (i.e. a function in the | |
428 | case of C) is the STATIC_BLOCK. The superblock of the | |
429 | STATIC_BLOCK is the GLOBAL_BLOCK. */ | |
2e4964ad | 430 | |
bd5635a1 | 431 | struct block *superblock; |
2e4964ad | 432 | |
0b28c260 JK |
433 | /* Version of GCC used to compile the function corresponding |
434 | to this block, or 0 if not compiled with GCC. When possible, | |
435 | GCC should be compatible with the native compiler, or if that | |
436 | is not feasible, the differences should be fixed during symbol | |
437 | reading. As of 16 Apr 93, this flag is never used to distinguish | |
438 | between gcc2 and the native compiler. | |
439 | ||
440 | If there is no function corresponding to this block, this meaning | |
441 | of this flag is undefined. */ | |
2e4964ad | 442 | |
bd5635a1 | 443 | unsigned char gcc_compile_flag; |
2e4964ad | 444 | |
bd5635a1 | 445 | /* Number of local symbols. */ |
2e4964ad | 446 | |
bd5635a1 | 447 | int nsyms; |
2e4964ad | 448 | |
54023465 JK |
449 | /* The symbols. If some of them are arguments, then they must be |
450 | in the order in which we would like to print them. */ | |
2e4964ad | 451 | |
bd5635a1 RP |
452 | struct symbol *sym[1]; |
453 | }; | |
bd5635a1 | 454 | |
2e4964ad FF |
455 | #define BLOCK_START(bl) (bl)->startaddr |
456 | #define BLOCK_END(bl) (bl)->endaddr | |
457 | #define BLOCK_NSYMS(bl) (bl)->nsyms | |
458 | #define BLOCK_SYM(bl, n) (bl)->sym[n] | |
459 | #define BLOCK_FUNCTION(bl) (bl)->function | |
460 | #define BLOCK_SUPERBLOCK(bl) (bl)->superblock | |
461 | #define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag | |
bd5635a1 | 462 | |
54023465 JK |
463 | /* Nonzero if symbols of block BL should be sorted alphabetically. |
464 | Don't sort a block which corresponds to a function. If we did the | |
465 | sorting would have to preserve the order of the symbols for the | |
466 | arguments. */ | |
bd5635a1 | 467 | |
54023465 | 468 | #define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40 && BLOCK_FUNCTION (bl) == NULL) |
bd5635a1 | 469 | |
2e4964ad FF |
470 | \f |
471 | /* Represent one symbol name; a variable, constant, function or typedef. */ | |
bd5635a1 | 472 | |
2e4964ad FF |
473 | /* Different name spaces for symbols. Looking up a symbol specifies a |
474 | namespace and ignores symbol definitions in other name spaces. */ | |
e02a2ad9 SC |
475 | |
476 | typedef enum | |
bd5635a1 | 477 | { |
2e4964ad FF |
478 | /* UNDEF_NAMESPACE is used when a namespace has not been discovered or |
479 | none of the following apply. This usually indicates an error either | |
480 | in the symbol information or in gdb's handling of symbols. */ | |
481 | ||
482 | UNDEF_NAMESPACE, | |
483 | ||
484 | /* VAR_NAMESPACE is the usual namespace. In C, this contains variables, | |
485 | function names, typedef names and enum type values. */ | |
486 | ||
487 | VAR_NAMESPACE, | |
488 | ||
489 | /* STRUCT_NAMESPACE is used in C to hold struct, union and enum type names. | |
490 | Thus, if `struct foo' is used in a C program, it produces a symbol named | |
491 | `foo' in the STRUCT_NAMESPACE. */ | |
492 | ||
493 | STRUCT_NAMESPACE, | |
494 | ||
495 | /* LABEL_NAMESPACE may be used for names of labels (for gotos); | |
496 | currently it is not used and labels are not recorded at all. */ | |
497 | ||
ad3b8c4a JM |
498 | LABEL_NAMESPACE, |
499 | ||
500 | /* Searching namespaces. These overlap with VAR_NAMESPACE, providing | |
501 | some granularity with the search_symbols function. */ | |
502 | ||
503 | /* Everything in VAR_NAMESPACE minus FUNCTIONS_-, TYPES_-, and | |
504 | METHODS_NAMESPACE */ | |
505 | VARIABLES_NAMESPACE, | |
506 | ||
507 | /* All functions -- for some reason not methods, though. */ | |
508 | FUNCTIONS_NAMESPACE, | |
509 | ||
510 | /* All defined types */ | |
511 | TYPES_NAMESPACE, | |
512 | ||
513 | /* All class methods -- why is this separated out? */ | |
514 | METHODS_NAMESPACE | |
515 | ||
e02a2ad9 | 516 | } namespace_enum; |
bd5635a1 RP |
517 | |
518 | /* An address-class says where to find the value of a symbol. */ | |
519 | ||
520 | enum address_class | |
521 | { | |
2e4964ad FF |
522 | /* Not used; catches errors */ |
523 | ||
524 | LOC_UNDEF, | |
525 | ||
526 | /* Value is constant int SYMBOL_VALUE, host byteorder */ | |
527 | ||
528 | LOC_CONST, | |
529 | ||
530 | /* Value is at fixed address SYMBOL_VALUE_ADDRESS */ | |
531 | ||
532 | LOC_STATIC, | |
533 | ||
fce30fa1 | 534 | /* Value is in register. SYMBOL_VALUE is the register number. */ |
2e4964ad FF |
535 | |
536 | LOC_REGISTER, | |
537 | ||
fce30fa1 | 538 | /* It's an argument; the value is at SYMBOL_VALUE offset in arglist. */ |
2e4964ad FF |
539 | |
540 | LOC_ARG, | |
541 | ||
5afa2040 | 542 | /* Value address is at SYMBOL_VALUE offset in arglist. */ |
2e4964ad FF |
543 | |
544 | LOC_REF_ARG, | |
545 | ||
fce30fa1 JK |
546 | /* Value is in register number SYMBOL_VALUE. Just like LOC_REGISTER |
547 | except this is an argument. Probably the cleaner way to handle | |
548 | this would be to separate address_class (which would include | |
549 | separate ARG and LOCAL to deal with FRAME_ARGS_ADDRESS versus | |
550 | FRAME_LOCALS_ADDRESS), and an is_argument flag. | |
0b28c260 JK |
551 | |
552 | For some symbol formats (stabs, for some compilers at least), | |
5afa2040 JK |
553 | the compiler generates two symbols, an argument and a register. |
554 | In some cases we combine them to a single LOC_REGPARM in symbol | |
9c5c2722 JK |
555 | reading, but currently not for all cases (e.g. it's passed on the |
556 | stack and then loaded into a register). */ | |
2e4964ad FF |
557 | |
558 | LOC_REGPARM, | |
559 | ||
5afa2040 JK |
560 | /* Value is in specified register. Just like LOC_REGPARM except the |
561 | register holds the address of the argument instead of the argument | |
562 | itself. This is currently used for the passing of structs and unions | |
b9298844 JK |
563 | on sparc and hppa. It is also used for call by reference where the |
564 | address is in a register, at least by mipsread.c. */ | |
5afa2040 JK |
565 | |
566 | LOC_REGPARM_ADDR, | |
567 | ||
fce30fa1 | 568 | /* Value is a local variable at SYMBOL_VALUE offset in stack frame. */ |
2e4964ad FF |
569 | |
570 | LOC_LOCAL, | |
571 | ||
572 | /* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace | |
573 | STRUCT_NAMESPACE all have this class. */ | |
574 | ||
575 | LOC_TYPEDEF, | |
576 | ||
577 | /* Value is address SYMBOL_VALUE_ADDRESS in the code */ | |
578 | ||
579 | LOC_LABEL, | |
580 | ||
fce30fa1 JK |
581 | /* In a symbol table, value is SYMBOL_BLOCK_VALUE of a `struct block'. |
582 | In a partial symbol table, SYMBOL_VALUE_ADDRESS is the start address | |
583 | of the block. Function names have this class. */ | |
2e4964ad FF |
584 | |
585 | LOC_BLOCK, | |
586 | ||
ca6a826d | 587 | /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_BYTES, in |
2e4964ad FF |
588 | target byte order. */ |
589 | ||
590 | LOC_CONST_BYTES, | |
591 | ||
fce30fa1 JK |
592 | /* Value is arg at SYMBOL_VALUE offset in stack frame. Differs from |
593 | LOC_LOCAL in that symbol is an argument; differs from LOC_ARG in | |
594 | that we find it in the frame (FRAME_LOCALS_ADDRESS), not in the | |
595 | arglist (FRAME_ARGS_ADDRESS). Added for i960, which passes args | |
596 | in regs then copies to frame. */ | |
2e4964ad | 597 | |
ca6a826d PS |
598 | LOC_LOCAL_ARG, |
599 | ||
a1c8d76e JK |
600 | /* Value is at SYMBOL_VALUE offset from the current value of |
601 | register number SYMBOL_BASEREG. This exists mainly for the same | |
602 | things that LOC_LOCAL and LOC_ARG do; but we need to do this | |
603 | instead because on 88k DWARF gives us the offset from the | |
604 | frame/stack pointer, rather than the offset from the "canonical | |
605 | frame address" used by COFF, stabs, etc., and we don't know how | |
606 | to convert between these until we start examining prologues. | |
607 | ||
c438b3af JK |
608 | Note that LOC_BASEREG is much less general than a DWARF expression. |
609 | We don't need the generality (at least not yet), and storing a general | |
610 | DWARF expression would presumably take up more space than the existing | |
611 | scheme. */ | |
a1c8d76e JK |
612 | |
613 | LOC_BASEREG, | |
614 | ||
615 | /* Same as LOC_BASEREG but it is an argument. */ | |
616 | ||
617 | LOC_BASEREG_ARG, | |
618 | ||
e02a2ad9 SC |
619 | /* Value is at fixed address, but the address of the variable has |
620 | to be determined from the minimal symbol table whenever the | |
621 | variable is referenced. | |
622 | This happens if debugging information for a global symbol is | |
623 | emitted and the corresponding minimal symbol is defined | |
624 | in another object file or runtime common storage. | |
625 | The linker might even remove the minimal symbol if the global | |
626 | symbol is never referenced, in which case the symbol remains | |
627 | unresolved. */ | |
628 | ||
629 | LOC_UNRESOLVED, | |
630 | ||
4ef1f467 DT |
631 | /* Value is at a thread-specific location calculated by a |
632 | target-specific method. */ | |
633 | ||
634 | LOC_THREAD_LOCAL_STATIC, | |
635 | ||
ca6a826d | 636 | /* The variable does not actually exist in the program. |
fce30fa1 | 637 | The value is ignored. */ |
2e4964ad | 638 | |
4ef1f467 DT |
639 | LOC_OPTIMIZED_OUT, |
640 | ||
641 | /* The variable is static, but actually lives at * (address). | |
642 | * I.e. do an extra indirection to get to it. | |
643 | * This is used on HP-UX to get at globals that are allocated | |
644 | * in shared libraries, where references from images other | |
645 | * than the one where the global was allocated are done | |
646 | * with a level of indirection. | |
647 | */ | |
648 | ||
649 | LOC_INDIRECT | |
650 | ||
bd5635a1 RP |
651 | }; |
652 | ||
d719efc6 DP |
653 | /* Linked list of symbol's live ranges. */ |
654 | ||
ad3b8c4a | 655 | struct range_list |
d719efc6 DP |
656 | { |
657 | CORE_ADDR start; | |
658 | CORE_ADDR end; | |
ad3b8c4a | 659 | struct range_list *next; |
d719efc6 DP |
660 | }; |
661 | ||
ad3b8c4a JM |
662 | /* Linked list of aliases for a particular main/primary symbol. */ |
663 | struct alias_list | |
664 | { | |
665 | struct symbol *sym; | |
666 | struct alias_list *next; | |
667 | }; | |
668 | ||
bd5635a1 RP |
669 | struct symbol |
670 | { | |
2e4964ad FF |
671 | |
672 | /* The general symbol info required for all types of symbols. */ | |
673 | ||
674 | struct general_symbol_info ginfo; | |
675 | ||
21578747 | 676 | /* Data type of value */ |
2e4964ad | 677 | |
21578747 | 678 | struct type *type; |
2e4964ad | 679 | |
21578747 | 680 | /* Name space code. */ |
2e4964ad | 681 | |
56e327b3 FF |
682 | #ifdef __MFC4__ |
683 | /* FIXME: don't conflict with C++'s namespace */ | |
684 | /* would be safer to do a global change for all namespace identifiers. */ | |
685 | #define namespace _namespace | |
686 | #endif | |
e02a2ad9 | 687 | namespace_enum namespace BYTE_BITFIELD; |
2e4964ad | 688 | |
21578747 | 689 | /* Address class */ |
2e4964ad | 690 | |
3f687c78 | 691 | enum address_class aclass BYTE_BITFIELD; |
bd5635a1 | 692 | |
2e4964ad FF |
693 | /* Line number of definition. FIXME: Should we really make the assumption |
694 | that nobody will try to debug files longer than 64K lines? What about | |
695 | machine generated programs? */ | |
696 | ||
bd5635a1 RP |
697 | unsigned short line; |
698 | ||
252f6c65 FF |
699 | /* Some symbols require an additional value to be recorded on a per- |
700 | symbol basis. Stash those values here. */ | |
2e4964ad | 701 | |
252f6c65 FF |
702 | union |
703 | { | |
a1c8d76e JK |
704 | /* Used by LOC_BASEREG and LOC_BASEREG_ARG. */ |
705 | short basereg; | |
252f6c65 FF |
706 | } |
707 | aux_value; | |
d719efc6 | 708 | |
ad3b8c4a JM |
709 | |
710 | /* Link to a list of aliases for this symbol. | |
711 | Only a "primary/main symbol may have aliases. */ | |
712 | struct alias_list *aliases; | |
713 | ||
714 | /* List of ranges where this symbol is active. This is only | |
715 | used by alias symbols at the current time. */ | |
716 | struct range_list *ranges; | |
bd5635a1 RP |
717 | }; |
718 | ||
ad3b8c4a | 719 | |
2e4964ad | 720 | #define SYMBOL_NAMESPACE(symbol) (symbol)->namespace |
3f687c78 | 721 | #define SYMBOL_CLASS(symbol) (symbol)->aclass |
2e4964ad FF |
722 | #define SYMBOL_TYPE(symbol) (symbol)->type |
723 | #define SYMBOL_LINE(symbol) (symbol)->line | |
a1c8d76e | 724 | #define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg |
ad3b8c4a JM |
725 | #define SYMBOL_ALIASES(symbol) (symbol)->aliases |
726 | #define SYMBOL_RANGES(symbol) (symbol)->ranges | |
2e4964ad | 727 | \f |
bd5635a1 RP |
728 | /* A partial_symbol records the name, namespace, and address class of |
729 | symbols whose types we have not parsed yet. For functions, it also | |
730 | contains their memory address, so we can find them from a PC value. | |
731 | Each partial_symbol sits in a partial_symtab, all of which are chained | |
b0246b3b | 732 | on a partial symtab list and which points to the corresponding |
bd5635a1 RP |
733 | normal symtab once the partial_symtab has been referenced. */ |
734 | ||
735 | struct partial_symbol | |
736 | { | |
2e4964ad FF |
737 | |
738 | /* The general symbol info required for all types of symbols. */ | |
739 | ||
740 | struct general_symbol_info ginfo; | |
741 | ||
bd5635a1 | 742 | /* Name space code. */ |
2e4964ad | 743 | |
e02a2ad9 | 744 | namespace_enum namespace BYTE_BITFIELD; |
2e4964ad | 745 | |
bd5635a1 | 746 | /* Address class (for info_symbols) */ |
2e4964ad | 747 | |
3f687c78 | 748 | enum address_class aclass BYTE_BITFIELD; |
2e4964ad | 749 | |
bd5635a1 | 750 | }; |
2e4964ad FF |
751 | |
752 | #define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace | |
3f687c78 | 753 | #define PSYMBOL_CLASS(psymbol) (psymbol)->aclass |
2e4964ad | 754 | |
bd5635a1 | 755 | \f |
2e4964ad FF |
756 | /* Source-file information. This describes the relation between source files, |
757 | ine numbers and addresses in the program text. */ | |
bd5635a1 RP |
758 | |
759 | struct sourcevector | |
760 | { | |
761 | int length; /* Number of source files described */ | |
762 | struct source *source[1]; /* Descriptions of the files */ | |
763 | }; | |
764 | ||
765 | /* Each item represents a line-->pc (or the reverse) mapping. This is | |
766 | somewhat more wasteful of space than one might wish, but since only | |
767 | the files which are actually debugged are read in to core, we don't | |
ece2e98a | 768 | waste much space. */ |
bd5635a1 RP |
769 | |
770 | struct linetable_entry | |
771 | { | |
772 | int line; | |
773 | CORE_ADDR pc; | |
774 | }; | |
775 | ||
c438b3af JK |
776 | /* The order of entries in the linetable is significant. They should |
777 | be sorted by increasing values of the pc field. If there is more than | |
778 | one entry for a given pc, then I'm not sure what should happen (and | |
779 | I not sure whether we currently handle it the best way). | |
b9298844 | 780 | |
c438b3af | 781 | Example: a C for statement generally looks like this |
b9298844 JK |
782 | |
783 | 10 0x100 - for the init/test part of a for stmt. | |
784 | 20 0x200 | |
785 | 30 0x300 | |
786 | 10 0x400 - for the increment part of a for stmt. | |
787 | ||
c438b3af | 788 | */ |
b9298844 | 789 | |
bd5635a1 RP |
790 | struct linetable |
791 | { | |
792 | int nitems; | |
c438b3af JK |
793 | |
794 | /* Actually NITEMS elements. If you don't like this use of the | |
795 | `struct hack', you can shove it up your ANSI (seriously, if the | |
796 | committee tells us how to do it, we can probably go along). */ | |
bd5635a1 RP |
797 | struct linetable_entry item[1]; |
798 | }; | |
799 | ||
800 | /* All the information on one source file. */ | |
801 | ||
802 | struct source | |
803 | { | |
804 | char *name; /* Name of file */ | |
805 | struct linetable contents; | |
806 | }; | |
807 | ||
2670f34d JG |
808 | /* How to relocate the symbols from each section in a symbol file. |
809 | Each struct contains an array of offsets. | |
810 | The ordering and meaning of the offsets is file-type-dependent; | |
811 | typically it is indexed by section numbers or symbol types or | |
812 | something like that. | |
813 | ||
814 | To give us flexibility in changing the internal representation | |
815 | of these offsets, the ANOFFSET macro must be used to insert and | |
816 | extract offset values in the struct. */ | |
817 | ||
818 | struct section_offsets | |
819 | { | |
820 | CORE_ADDR offsets[1]; /* As many as needed. */ | |
821 | }; | |
822 | ||
823 | #define ANOFFSET(secoff, whichone) (secoff->offsets[whichone]) | |
824 | ||
e74acce4 MA |
825 | /* The maximum possible size of a section_offsets table. */ |
826 | ||
827 | #define SIZEOF_SECTION_OFFSETS \ | |
828 | (sizeof (struct section_offsets) \ | |
829 | + sizeof (((struct section_offsets *) 0)->offsets) * (SECT_OFF_MAX-1)) | |
830 | ||
831 | ||
b86a1b3b | 832 | /* Each source file or header is represented by a struct symtab. |
bd5635a1 RP |
833 | These objects are chained through the `next' field. */ |
834 | ||
835 | struct symtab | |
836 | { | |
2e4964ad | 837 | |
bd5635a1 | 838 | /* Chain of all existing symtabs. */ |
2e4964ad | 839 | |
bd5635a1 | 840 | struct symtab *next; |
2e4964ad | 841 | |
b86a1b3b JK |
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). */ | |
2e4964ad | 845 | |
bd5635a1 | 846 | struct blockvector *blockvector; |
2e4964ad | 847 | |
4137c5fc | 848 | /* Table mapping core addresses to line numbers for this file. |
b86a1b3b | 849 | Can be NULL if none. Never shared between different symtabs. */ |
2e4964ad | 850 | |
bd5635a1 | 851 | struct linetable *linetable; |
2e4964ad | 852 | |
ca6a826d | 853 | /* Section in objfile->section_offsets for the blockvector and |
3f687c78 | 854 | the linetable. Probably always SECT_OFF_TEXT. */ |
ca6a826d PS |
855 | |
856 | int block_line_section; | |
857 | ||
858 | /* If several symtabs share a blockvector, exactly one of them | |
859 | should be designed the primary, so that the blockvector | |
860 | is relocated exactly once by objfile_relocate. */ | |
861 | ||
862 | int primary; | |
863 | ||
bd5635a1 | 864 | /* Name of this source file. */ |
2e4964ad | 865 | |
bd5635a1 | 866 | char *filename; |
2e4964ad | 867 | |
bd5635a1 | 868 | /* Directory in which it was compiled, or NULL if we don't know. */ |
2e4964ad | 869 | |
bd5635a1 | 870 | char *dirname; |
2e4964ad | 871 | |
bd5635a1 RP |
872 | /* This component says how to free the data we point to: |
873 | free_contents => do a tree walk and free each object. | |
874 | free_nothing => do nothing; some other symtab will free | |
875 | the data this one uses. | |
b86a1b3b JK |
876 | free_linetable => free just the linetable. FIXME: Is this redundant |
877 | with the primary field? */ | |
2e4964ad FF |
878 | |
879 | enum free_code | |
880 | { | |
881 | free_nothing, free_contents, free_linetable | |
882 | } | |
883 | free_code; | |
884 | ||
bd5635a1 RP |
885 | /* Pointer to one block of storage to be freed, if nonzero. */ |
886 | /* This is IN ADDITION to the action indicated by free_code. */ | |
2e4964ad | 887 | |
bd5635a1 | 888 | char *free_ptr; |
2e4964ad | 889 | |
bd5635a1 | 890 | /* Total number of lines found in source file. */ |
2e4964ad | 891 | |
bd5635a1 | 892 | int nlines; |
2e4964ad | 893 | |
025abdfb JK |
894 | /* line_charpos[N] is the position of the (N-1)th line of the |
895 | source file. "position" means something we can lseek() to; it | |
896 | is not guaranteed to be useful any other way. */ | |
2e4964ad | 897 | |
bd5635a1 | 898 | int *line_charpos; |
2e4964ad | 899 | |
bd5635a1 | 900 | /* Language of this source file. */ |
2e4964ad | 901 | |
bd5635a1 | 902 | enum language language; |
2e4964ad | 903 | |
609fd033 FF |
904 | /* String that identifies the format of the debugging information, such |
905 | as "stabs", "dwarf 1", "dwarf 2", "coff", etc. This is mostly useful | |
906 | for automated testing of gdb but may also be information that is | |
907 | useful to the user. */ | |
908 | ||
909 | char *debugformat; | |
910 | ||
bd5635a1 | 911 | /* String of version information. May be zero. */ |
2e4964ad | 912 | |
bd5635a1 | 913 | char *version; |
2e4964ad | 914 | |
bd5635a1 | 915 | /* Full name of file as found by searching the source path. |
2e4964ad FF |
916 | NULL if not yet known. */ |
917 | ||
bd5635a1 | 918 | char *fullname; |
8aa13b87 | 919 | |
a048c8f5 | 920 | /* Object file from which this symbol information was read. */ |
2e4964ad | 921 | |
a048c8f5 | 922 | struct objfile *objfile; |
a048c8f5 | 923 | |
bd5635a1 RP |
924 | }; |
925 | ||
2e4964ad FF |
926 | #define BLOCKVECTOR(symtab) (symtab)->blockvector |
927 | #define LINETABLE(symtab) (symtab)->linetable | |
928 | ||
929 | \f | |
bd5635a1 RP |
930 | /* Each source file that has not been fully read in is represented by |
931 | a partial_symtab. This contains the information on where in the | |
932 | executable the debugging symbols for a specific file are, and a | |
933 | list of names of global symbols which are located in this file. | |
b0246b3b | 934 | They are all chained on partial symtab lists. |
bd5635a1 RP |
935 | |
936 | Even after the source file has been read into a symtab, the | |
937 | partial_symtab remains around. They are allocated on an obstack, | |
938 | psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks- | |
939 | style execution of a bunch of .o's. */ | |
b0246b3b | 940 | |
bd5635a1 RP |
941 | struct partial_symtab |
942 | { | |
2e4964ad | 943 | |
bd5635a1 | 944 | /* Chain of all existing partial symtabs. */ |
2e4964ad | 945 | |
bd5635a1 | 946 | struct partial_symtab *next; |
2e4964ad | 947 | |
bd5635a1 | 948 | /* Name of the source file which this partial_symtab defines */ |
2e4964ad | 949 | |
bd5635a1 RP |
950 | char *filename; |
951 | ||
a048c8f5 | 952 | /* Information about the object file from which symbols should be read. */ |
2e4964ad | 953 | |
a048c8f5 | 954 | struct objfile *objfile; |
a048c8f5 | 955 | |
2670f34d | 956 | /* Set of relocation offsets to apply to each section. */ |
2e4964ad | 957 | |
2670f34d JG |
958 | struct section_offsets *section_offsets; |
959 | ||
bd5635a1 RP |
960 | /* Range of text addresses covered by this file; texthigh is the |
961 | beginning of the next section. */ | |
2e4964ad FF |
962 | |
963 | CORE_ADDR textlow; | |
964 | CORE_ADDR texthigh; | |
965 | ||
bd5635a1 RP |
966 | /* Array of pointers to all of the partial_symtab's which this one |
967 | depends on. Since this array can only be set to previous or | |
968 | the current (?) psymtab, this dependency tree is guaranteed not | |
d63aae7f JK |
969 | to have any loops. "depends on" means that symbols must be read |
970 | for the dependencies before being read for this psymtab; this is | |
971 | for type references in stabs, where if foo.c includes foo.h, declarations | |
972 | in foo.h may use type numbers defined in foo.c. For other debugging | |
973 | formats there may be no need to use dependencies. */ | |
2e4964ad | 974 | |
bd5635a1 | 975 | struct partial_symtab **dependencies; |
2e4964ad | 976 | |
bd5635a1 | 977 | int number_of_dependencies; |
2e4964ad | 978 | |
bd5635a1 RP |
979 | /* Global symbol list. This list will be sorted after readin to |
980 | improve access. Binary search will be the usual method of | |
981 | finding a symbol within it. globals_offset is an integer offset | |
4a35d6e9 | 982 | within global_psymbols[]. */ |
2e4964ad FF |
983 | |
984 | int globals_offset; | |
985 | int n_global_syms; | |
986 | ||
bd5635a1 RP |
987 | /* Static symbol list. This list will *not* be sorted after readin; |
988 | to find a symbol in it, exhaustive search must be used. This is | |
989 | reasonable because searches through this list will eventually | |
990 | lead to either the read in of a files symbols for real (assumed | |
991 | to take a *lot* of time; check) or an error (and we don't care | |
4a35d6e9 FF |
992 | how long errors take). This is an offset and size within |
993 | static_psymbols[]. */ | |
2e4964ad FF |
994 | |
995 | int statics_offset; | |
996 | int n_static_syms; | |
997 | ||
bd5635a1 RP |
998 | /* Pointer to symtab eventually allocated for this source file, 0 if |
999 | !readin or if we haven't looked for the symtab after it was readin. */ | |
2e4964ad | 1000 | |
bd5635a1 | 1001 | struct symtab *symtab; |
2e4964ad | 1002 | |
bd5635a1 RP |
1003 | /* Pointer to function which will read in the symtab corresponding to |
1004 | this psymtab. */ | |
2e4964ad | 1005 | |
b0246b3b | 1006 | void (*read_symtab) PARAMS ((struct partial_symtab *)); |
2e4964ad | 1007 | |
4a35d6e9 FF |
1008 | /* Information that lets read_symtab() locate the part of the symbol table |
1009 | that this psymtab corresponds to. This information is private to the | |
1010 | format-dependent symbol reading routines. For further detail examine | |
1011 | the various symbol reading modules. Should really be (void *) but is | |
1012 | (char *) as with other such gdb variables. (FIXME) */ | |
2e4964ad | 1013 | |
4a35d6e9 | 1014 | char *read_symtab_private; |
2e4964ad FF |
1015 | |
1016 | /* Non-zero if the symtab corresponding to this psymtab has been readin */ | |
1017 | ||
bd5635a1 RP |
1018 | unsigned char readin; |
1019 | }; | |
1020 | ||
1021 | /* A fast way to get from a psymtab to its symtab (after the first time). */ | |
2e4964ad FF |
1022 | #define PSYMTAB_TO_SYMTAB(pst) \ |
1023 | ((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst)) | |
bd5635a1 | 1024 | |
bd5635a1 | 1025 | \f |
2e4964ad FF |
1026 | /* The virtual function table is now an array of structures which have the |
1027 | form { int16 offset, delta; void *pfn; }. | |
aec4cb91 | 1028 | |
ea9cdf62 JK |
1029 | In normal virtual function tables, OFFSET is unused. |
1030 | DELTA is the amount which is added to the apparent object's base | |
1031 | address in order to point to the actual object to which the | |
1032 | virtual function should be applied. | |
0b28c260 JK |
1033 | PFN is a pointer to the virtual function. |
1034 | ||
1035 | Note that this macro is g++ specific (FIXME). */ | |
bd5635a1 RP |
1036 | |
1037 | #define VTBL_FNADDR_OFFSET 2 | |
ea9cdf62 | 1038 | |
2e4964ad FF |
1039 | /* Macro that yields non-zero value iff NAME is the prefix for C++ operator |
1040 | names. If you leave out the parenthesis here you will lose! | |
ea9cdf62 | 1041 | Currently 'o' 'p' CPLUS_MARKER is used for both the symbol in the |
0b28c260 JK |
1042 | symbol-file and the names in gdb's symbol table. |
1043 | Note that this macro is g++ specific (FIXME). */ | |
ea9cdf62 | 1044 | |
2e4964ad | 1045 | #define OPNAME_PREFIX_P(NAME) \ |
81afee37 | 1046 | ((NAME)[0] == 'o' && (NAME)[1] == 'p' && is_cplus_marker ((NAME)[2])) |
2e4964ad | 1047 | |
ca6a826d | 1048 | /* Macro that yields non-zero value iff NAME is the prefix for C++ vtbl |
3f687c78 SG |
1049 | names. Note that this macro is g++ specific (FIXME). |
1050 | '_vt$' is the old cfront-style vtables; '_VT$' is the new | |
1051 | style, using thunks (where '$' is really CPLUS_MARKER). */ | |
ca6a826d | 1052 | |
2e4964ad | 1053 | #define VTBL_PREFIX_P(NAME) \ |
81afee37 | 1054 | ((NAME)[0] == '_' \ |
3f687c78 | 1055 | && (((NAME)[1] == 'V' && (NAME)[2] == 'T') \ |
81afee37 FF |
1056 | || ((NAME)[1] == 'v' && (NAME)[2] == 't')) \ |
1057 | && is_cplus_marker ((NAME)[3])) | |
2e4964ad | 1058 | |
ca6a826d | 1059 | /* Macro that yields non-zero value iff NAME is the prefix for C++ destructor |
0b28c260 | 1060 | names. Note that this macro is g++ specific (FIXME). */ |
ca6a826d PS |
1061 | |
1062 | #define DESTRUCTOR_PREFIX_P(NAME) \ | |
81afee37 | 1063 | ((NAME)[0] == '_' && is_cplus_marker ((NAME)[1]) && (NAME)[2] == '_') |
ca6a826d | 1064 | |
bd5635a1 | 1065 | \f |
2e4964ad FF |
1066 | /* External variables and functions for the objects described above. */ |
1067 | ||
1068 | /* This symtab variable specifies the current file for printing source lines */ | |
1069 | ||
1070 | extern struct symtab *current_source_symtab; | |
1071 | ||
1072 | /* This is the next line to print for listing source lines. */ | |
1073 | ||
1074 | extern int current_source_line; | |
1075 | ||
1076 | /* See the comment in symfile.c about how current_objfile is used. */ | |
1077 | ||
1078 | extern struct objfile *current_objfile; | |
bd5635a1 | 1079 | |
81afee37 FF |
1080 | /* True if we are nested inside psymtab_to_symtab. */ |
1081 | ||
1082 | extern int currently_reading_symtab; | |
1083 | ||
3f687c78 SG |
1084 | /* From utils.c. */ |
1085 | extern int demangle; | |
1086 | extern int asm_demangle; | |
1087 | ||
56e327b3 FF |
1088 | /* symtab.c lookup functions */ |
1089 | ||
1090 | /* lookup a symbol table by source file name */ | |
1091 | ||
b0246b3b FF |
1092 | extern struct symtab * |
1093 | lookup_symtab PARAMS ((char *)); | |
1094 | ||
56e327b3 FF |
1095 | /* lookup a symbol by name (optional block, optional symtab) */ |
1096 | ||
b0246b3b FF |
1097 | extern struct symbol * |
1098 | lookup_symbol PARAMS ((const char *, const struct block *, | |
e02a2ad9 | 1099 | const namespace_enum, int *, struct symtab **)); |
b0246b3b | 1100 | |
56e327b3 FF |
1101 | /* lookup a symbol by name, within a specified block */ |
1102 | ||
b0246b3b FF |
1103 | extern struct symbol * |
1104 | lookup_block_symbol PARAMS ((const struct block *, const char *, | |
e02a2ad9 | 1105 | const namespace_enum)); |
b0246b3b | 1106 | |
56e327b3 FF |
1107 | /* lookup a [struct, union, enum] by name, within a specified block */ |
1108 | ||
b0246b3b FF |
1109 | extern struct type * |
1110 | lookup_struct PARAMS ((char *, struct block *)); | |
1111 | ||
1112 | extern struct type * | |
1113 | lookup_union PARAMS ((char *, struct block *)); | |
1114 | ||
1115 | extern struct type * | |
1116 | lookup_enum PARAMS ((char *, struct block *)); | |
1117 | ||
56e327b3 FF |
1118 | /* lookup the function corresponding to the block */ |
1119 | ||
b0246b3b FF |
1120 | extern struct symbol * |
1121 | block_function PARAMS ((struct block *)); | |
1122 | ||
56e327b3 FF |
1123 | /* from blockframe.c: */ |
1124 | ||
1125 | /* lookup the function symbol corresponding to the address */ | |
1126 | ||
b0246b3b FF |
1127 | extern struct symbol * |
1128 | find_pc_function PARAMS ((CORE_ADDR)); | |
1129 | ||
56e327b3 FF |
1130 | /* lookup the function corresponding to the address and section */ |
1131 | ||
1132 | extern struct symbol * | |
1133 | find_pc_sect_function PARAMS ((CORE_ADDR, asection *)); | |
1134 | ||
1135 | /* lookup function from address, return name, start addr and end addr */ | |
1136 | ||
ad3b8c4a JM |
1137 | extern int |
1138 | find_pc_partial_function PARAMS ((CORE_ADDR, char **, | |
56e327b3 | 1139 | CORE_ADDR *, CORE_ADDR *)); |
b0246b3b FF |
1140 | |
1141 | extern void | |
1142 | clear_pc_function_cache PARAMS ((void)); | |
1143 | ||
ad3b8c4a JM |
1144 | extern int |
1145 | find_pc_sect_partial_function PARAMS ((CORE_ADDR, asection *, | |
1146 | char **, CORE_ADDR *, CORE_ADDR *)); | |
1147 | ||
56e327b3 FF |
1148 | /* from symtab.c: */ |
1149 | ||
1150 | /* lookup partial symbol table by filename */ | |
1151 | ||
b0246b3b FF |
1152 | extern struct partial_symtab * |
1153 | lookup_partial_symtab PARAMS ((char *)); | |
1154 | ||
56e327b3 FF |
1155 | /* lookup partial symbol table by address */ |
1156 | ||
b0246b3b FF |
1157 | extern struct partial_symtab * |
1158 | find_pc_psymtab PARAMS ((CORE_ADDR)); | |
1159 | ||
56e327b3 FF |
1160 | /* lookup partial symbol table by address and section */ |
1161 | ||
1162 | extern struct partial_symtab * | |
1163 | find_pc_sect_psymtab PARAMS ((CORE_ADDR, asection *)); | |
1164 | ||
1165 | /* lookup full symbol table by address */ | |
1166 | ||
b0246b3b FF |
1167 | extern struct symtab * |
1168 | find_pc_symtab PARAMS ((CORE_ADDR)); | |
1169 | ||
56e327b3 FF |
1170 | /* lookup full symbol table by address and section */ |
1171 | ||
1172 | extern struct symtab * | |
1173 | find_pc_sect_symtab PARAMS ((CORE_ADDR, asection *)); | |
1174 | ||
1175 | /* lookup partial symbol by address */ | |
1176 | ||
b0246b3b FF |
1177 | extern struct partial_symbol * |
1178 | find_pc_psymbol PARAMS ((struct partial_symtab *, CORE_ADDR)); | |
1179 | ||
56e327b3 FF |
1180 | /* lookup partial symbol by address and section */ |
1181 | ||
1182 | extern struct partial_symbol * | |
1183 | find_pc_sect_psymbol PARAMS ((struct partial_symtab *, CORE_ADDR, asection *)); | |
1184 | ||
b0246b3b FF |
1185 | extern int |
1186 | find_pc_line_pc_range PARAMS ((CORE_ADDR, CORE_ADDR *, CORE_ADDR *)); | |
1187 | ||
1188 | extern int | |
1189 | contained_in PARAMS ((struct block *, struct block *)); | |
1190 | ||
1191 | extern void | |
1192 | reread_symbols PARAMS ((void)); | |
1193 | ||
4ef1f467 DT |
1194 | extern struct type * |
1195 | lookup_transparent_type PARAMS ((const char *)); | |
1196 | ||
1197 | ||
404f69a8 JK |
1198 | /* Macro for name of symbol to indicate a file compiled with gcc. */ |
1199 | #ifndef GCC_COMPILED_FLAG_SYMBOL | |
1200 | #define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled." | |
1201 | #endif | |
1202 | ||
1203 | /* Macro for name of symbol to indicate a file compiled with gcc2. */ | |
1204 | #ifndef GCC2_COMPILED_FLAG_SYMBOL | |
1205 | #define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled." | |
1206 | #endif | |
1207 | ||
b0246b3b FF |
1208 | /* Functions for dealing with the minimal symbol table, really a misc |
1209 | address<->symbol mapping for things we don't have debug symbols for. */ | |
1210 | ||
21578747 JG |
1211 | extern void prim_record_minimal_symbol PARAMS ((const char *, CORE_ADDR, |
1212 | enum minimal_symbol_type, | |
1213 | struct objfile *)); | |
b0246b3b | 1214 | |
3f687c78 | 1215 | extern struct minimal_symbol *prim_record_minimal_symbol_and_info |
21578747 JG |
1216 | PARAMS ((const char *, CORE_ADDR, |
1217 | enum minimal_symbol_type, | |
1218 | char *info, int section, | |
56e327b3 | 1219 | asection *bfd_section, |
21578747 | 1220 | struct objfile *)); |
51b57ded | 1221 | |
3f687c78 SG |
1222 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING |
1223 | extern CORE_ADDR find_stab_function_addr PARAMS ((char *, | |
1224 | struct partial_symtab *, | |
1225 | struct objfile *)); | |
1226 | #endif | |
1227 | ||
b0246b3b | 1228 | extern struct minimal_symbol * |
3f687c78 SG |
1229 | lookup_minimal_symbol PARAMS ((const char *, const char *, struct objfile *)); |
1230 | ||
1231 | extern struct minimal_symbol * | |
1232 | lookup_minimal_symbol_text PARAMS ((const char *, const char *, struct objfile *)); | |
b0246b3b | 1233 | |
e74acce4 MA |
1234 | struct minimal_symbol * |
1235 | lookup_minimal_symbol_solib_trampoline PARAMS ((const char *, | |
1236 | const char *, | |
1237 | struct objfile *)); | |
1238 | ||
b0246b3b FF |
1239 | extern struct minimal_symbol * |
1240 | lookup_minimal_symbol_by_pc PARAMS ((CORE_ADDR)); | |
1241 | ||
56e327b3 FF |
1242 | extern struct minimal_symbol * |
1243 | lookup_minimal_symbol_by_pc_section PARAMS ((CORE_ADDR, asection *)); | |
1244 | ||
2fe3b329 PS |
1245 | extern struct minimal_symbol * |
1246 | lookup_solib_trampoline_symbol_by_pc PARAMS ((CORE_ADDR)); | |
1247 | ||
1248 | extern CORE_ADDR | |
1249 | find_solib_trampoline_target PARAMS ((CORE_ADDR)); | |
1250 | ||
b0246b3b FF |
1251 | extern void |
1252 | init_minimal_symbol_collection PARAMS ((void)); | |
1253 | ||
1254 | extern void | |
1255 | discard_minimal_symbols PARAMS ((int)); | |
1256 | ||
1257 | extern void | |
1258 | install_minimal_symbols PARAMS ((struct objfile *)); | |
bd5635a1 | 1259 | |
3f687c78 SG |
1260 | /* Sort all the minimal symbols in OBJFILE. */ |
1261 | ||
1262 | extern void msymbols_sort PARAMS ((struct objfile *objfile)); | |
1263 | ||
bd5635a1 RP |
1264 | struct symtab_and_line |
1265 | { | |
1266 | struct symtab *symtab; | |
56e327b3 | 1267 | asection *section; |
025abdfb JK |
1268 | /* Line number. Line numbers start at 1 and proceed through symtab->nlines. |
1269 | 0 is never a valid line number; it is used to indicate that line number | |
1270 | information is not available. */ | |
bd5635a1 | 1271 | int line; |
025abdfb | 1272 | |
bd5635a1 RP |
1273 | CORE_ADDR pc; |
1274 | CORE_ADDR end; | |
1275 | }; | |
1276 | ||
56e327b3 FF |
1277 | #define INIT_SAL(sal) { \ |
1278 | (sal)->symtab = 0; \ | |
1279 | (sal)->section = 0; \ | |
1280 | (sal)->line = 0; \ | |
1281 | (sal)->pc = 0; \ | |
1282 | (sal)->end = 0; \ | |
1283 | } | |
1284 | ||
bd5635a1 RP |
1285 | struct symtabs_and_lines |
1286 | { | |
1287 | struct symtab_and_line *sals; | |
1288 | int nelts; | |
1289 | }; | |
1290 | ||
4ef1f467 DT |
1291 | |
1292 | \f | |
1293 | /* Some types and macros needed for exception catchpoints. | |
1294 | Can't put these in target.h because symtab_and_line isn't | |
1295 | known there. This file will be included by breakpoint.c, | |
1296 | hppa-tdep.c, etc. */ | |
1297 | ||
1298 | /* Enums for exception-handling support */ | |
1299 | enum exception_event_kind { | |
1300 | EX_EVENT_THROW, | |
1301 | EX_EVENT_CATCH | |
1302 | }; | |
1303 | ||
1304 | /* Type for returning info about an exception */ | |
1305 | struct exception_event_record { | |
1306 | enum exception_event_kind kind; | |
1307 | struct symtab_and_line throw_sal; | |
1308 | struct symtab_and_line catch_sal; | |
1309 | /* This may need to be extended in the future, if | |
1310 | some platforms allow reporting more information, | |
1311 | such as point of rethrow, type of exception object, | |
1312 | type expected by catch clause, etc. */ | |
1313 | }; | |
1314 | ||
1315 | #define CURRENT_EXCEPTION_KIND (current_exception_event->kind) | |
1316 | #define CURRENT_EXCEPTION_CATCH_SAL (current_exception_event->catch_sal) | |
1317 | #define CURRENT_EXCEPTION_CATCH_LINE (current_exception_event->catch_sal.line) | |
1318 | #define CURRENT_EXCEPTION_CATCH_FILE (current_exception_event->catch_sal.symtab->filename) | |
1319 | #define CURRENT_EXCEPTION_CATCH_PC (current_exception_event->catch_sal.pc) | |
1320 | #define CURRENT_EXCEPTION_THROW_SAL (current_exception_event->throw_sal) | |
1321 | #define CURRENT_EXCEPTION_THROW_LINE (current_exception_event->throw_sal.line) | |
1322 | #define CURRENT_EXCEPTION_THROW_FILE (current_exception_event->throw_sal.symtab->filename) | |
1323 | #define CURRENT_EXCEPTION_THROW_PC (current_exception_event->throw_sal.pc) | |
1324 | \f | |
1325 | ||
2e4964ad FF |
1326 | /* Given a pc value, return line number it is in. Second arg nonzero means |
1327 | if pc is on the boundary use the previous statement's line number. */ | |
bd5635a1 | 1328 | |
b0246b3b FF |
1329 | extern struct symtab_and_line |
1330 | find_pc_line PARAMS ((CORE_ADDR, int)); | |
bd5635a1 | 1331 | |
56e327b3 FF |
1332 | /* Same function, but specify a section as well as an address */ |
1333 | ||
1334 | extern struct symtab_and_line | |
1335 | find_pc_sect_line PARAMS ((CORE_ADDR, asection *, int)); | |
1336 | ||
fb155ce3 JK |
1337 | /* Given an address, return the nearest symbol at or below it in memory. |
1338 | Optionally return the symtab it's from through 2nd arg, and the | |
1339 | address in inferior memory of the symbol through 3rd arg. */ | |
1340 | ||
1341 | extern struct symbol * | |
1342 | find_addr_symbol PARAMS ((CORE_ADDR, struct symtab **, CORE_ADDR *)); | |
1343 | ||
bd5635a1 | 1344 | /* Given a symtab and line number, return the pc there. */ |
b0246b3b | 1345 | |
ad3b8c4a JM |
1346 | extern int |
1347 | find_line_pc PARAMS ((struct symtab *, int, CORE_ADDR *)); | |
b0246b3b FF |
1348 | |
1349 | extern int | |
404f69a8 | 1350 | find_line_pc_range PARAMS ((struct symtab_and_line, |
b86a1b3b | 1351 | CORE_ADDR *, CORE_ADDR *)); |
b0246b3b FF |
1352 | |
1353 | extern void | |
1354 | resolve_sal_pc PARAMS ((struct symtab_and_line *)); | |
bd5635a1 | 1355 | |
2e4964ad FF |
1356 | /* Given a string, return the line specified by it. For commands like "list" |
1357 | and "breakpoint". */ | |
bd5635a1 | 1358 | |
b0246b3b FF |
1359 | extern struct symtabs_and_lines |
1360 | decode_line_spec PARAMS ((char *, int)); | |
1361 | ||
1362 | extern struct symtabs_and_lines | |
1363 | decode_line_spec_1 PARAMS ((char *, int)); | |
1364 | ||
1365 | extern struct symtabs_and_lines | |
6f87ec4a | 1366 | decode_line_1 PARAMS ((char **, int, struct symtab *, int, char ***)); |
bd5635a1 | 1367 | |
35fcebce PB |
1368 | #if MAINTENANCE_CMDS |
1369 | ||
56e327b3 FF |
1370 | /* Symmisc.c */ |
1371 | ||
35fcebce PB |
1372 | void |
1373 | maintenance_print_symbols PARAMS ((char *, int)); | |
1374 | ||
1375 | void | |
1376 | maintenance_print_psymbols PARAMS ((char *, int)); | |
1377 | ||
1378 | void | |
1379 | maintenance_print_msymbols PARAMS ((char *, int)); | |
1380 | ||
1381 | void | |
1382 | maintenance_print_objfiles PARAMS ((char *, int)); | |
1383 | ||
2fe3b329 PS |
1384 | void |
1385 | maintenance_check_symtabs PARAMS ((char *, int)); | |
1386 | ||
56e327b3 FF |
1387 | /* maint.c */ |
1388 | ||
1389 | void | |
1390 | maintenance_print_statistics PARAMS ((char *, int)); | |
1391 | ||
35fcebce PB |
1392 | #endif |
1393 | ||
b0246b3b FF |
1394 | extern void |
1395 | free_symtab PARAMS ((struct symtab *)); | |
5c43db6b | 1396 | |
bd5635a1 | 1397 | /* Symbol-reading stuff in symfile.c and solib.c. */ |
b0246b3b FF |
1398 | |
1399 | extern struct symtab * | |
1400 | psymtab_to_symtab PARAMS ((struct partial_symtab *)); | |
1401 | ||
1402 | extern void | |
1403 | clear_solib PARAMS ((void)); | |
1404 | ||
1405 | extern struct objfile * | |
1406 | symbol_file_add PARAMS ((char *, int, CORE_ADDR, int, int, int)); | |
bd5635a1 RP |
1407 | |
1408 | /* source.c */ | |
bd5635a1 | 1409 | |
b0246b3b | 1410 | extern int |
b9298844 | 1411 | identify_source_line PARAMS ((struct symtab *, int, int, CORE_ADDR)); |
b0246b3b FF |
1412 | |
1413 | extern void | |
1414 | print_source_lines PARAMS ((struct symtab *, int, int, int)); | |
1415 | ||
1416 | extern void | |
1417 | forget_cached_source_info PARAMS ((void)); | |
1418 | ||
1419 | extern void | |
1420 | select_source_symtab PARAMS ((struct symtab *)); | |
1421 | ||
d63aae7f | 1422 | extern char **make_symbol_completion_list PARAMS ((char *, char *)); |
b0246b3b | 1423 | |
4ef1f467 DT |
1424 | extern struct symbol ** |
1425 | make_symbol_overload_list PARAMS ((struct symbol *)); | |
ad3b8c4a | 1426 | |
b0246b3b FF |
1427 | /* symtab.c */ |
1428 | ||
1429 | extern struct partial_symtab * | |
1430 | find_main_psymtab PARAMS ((void)); | |
1431 | ||
1432 | /* blockframe.c */ | |
1433 | ||
1434 | extern struct blockvector * | |
1435 | blockvector_for_pc PARAMS ((CORE_ADDR, int *)); | |
bd5635a1 | 1436 | |
56e327b3 FF |
1437 | extern struct blockvector * |
1438 | blockvector_for_pc_sect PARAMS ((CORE_ADDR, asection *, int *, | |
1439 | struct symtab *)); | |
ad3b8c4a | 1440 | |
b0246b3b | 1441 | /* symfile.c */ |
4a35d6e9 | 1442 | |
313dd520 JK |
1443 | extern void |
1444 | clear_symtab_users PARAMS ((void)); | |
1445 | ||
b0246b3b FF |
1446 | extern enum language |
1447 | deduce_language_from_filename PARAMS ((char *)); | |
4a35d6e9 | 1448 | |
3f687c78 SG |
1449 | /* symtab.c */ |
1450 | ||
1451 | extern int | |
1452 | in_prologue PARAMS ((CORE_ADDR pc, CORE_ADDR func_start)); | |
1453 | ||
56e327b3 FF |
1454 | extern struct symbol * |
1455 | fixup_symbol_section PARAMS ((struct symbol *, struct objfile *)); | |
1456 | ||
ad3b8c4a JM |
1457 | /* Symbol searching */ |
1458 | ||
1459 | /* When using search_symbols, a list of the following structs is returned. | |
1460 | Callers must free the search list using free_symbol_search! */ | |
1461 | struct symbol_search | |
1462 | { | |
1463 | /* The block in which the match was found. Could be, for example, | |
1464 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
1465 | int block; | |
1466 | ||
1467 | /* Information describing what was found. | |
1468 | ||
1469 | If symtab abd symbol are NOT NULL, then information was found | |
1470 | for this match. */ | |
1471 | struct symtab *symtab; | |
1472 | struct symbol *symbol; | |
1473 | ||
1474 | /* If msymbol is non-null, then a match was made on something for | |
1475 | which only minimal_symbols exist. */ | |
1476 | struct minimal_symbol *msymbol; | |
1477 | ||
1478 | /* A link to the next match, or NULL for the end. */ | |
1479 | struct symbol_search *next; | |
1480 | }; | |
1481 | ||
1482 | extern void search_symbols PARAMS ((char *, namespace_enum, int, char **, struct symbol_search **)); | |
1483 | extern void free_search_symbols PARAMS ((struct symbol_search *)); | |
1484 | ||
b0246b3b | 1485 | #endif /* !defined(SYMTAB_H) */ |