Commit | Line | Data |
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5489fcc3 KR |
1 | #include "libiberty.h" |
2 | #include "gprof.h" | |
3 | #include "core.h" | |
4 | #include "symtab.h" | |
5 | ||
0f579087 ILT |
6 | #ifndef MIN_INSN_SIZE |
7 | /* If not defined in MACHINE_H, assume smallest instruction is 1 byte | |
8 | long. THis is safe but may be needlessly slow on machines where | |
9 | all instructions are longer. */ | |
10 | #define MIN_INSN_SIZE 1 | |
11 | #endif | |
12 | ||
5489fcc3 KR |
13 | bfd *core_bfd; |
14 | int core_num_syms; | |
15 | asymbol **core_syms; | |
16 | asection *core_text_sect; | |
17 | PTR core_text_space; | |
18 | ||
64c50fc5 JL |
19 | /* For mapping symbols to specific .o files during file ordering. */ |
20 | struct function_map { | |
21 | char *function_name; | |
22 | char *file_name; | |
23 | }; | |
24 | ||
25 | struct function_map *symbol_map; | |
26 | int symbol_map_count; | |
27 | ||
28 | static void | |
29 | DEFUN (read_function_mappings, (filename), const char *filename) | |
30 | { | |
31 | FILE *file = fopen (filename, "r"); | |
32 | char dummy[1024]; | |
33 | int count = 0; | |
34 | ||
35 | if (!file) | |
36 | { | |
37 | fprintf (stderr, "%s: could not open %s.\n", whoami, filename); | |
38 | done (1); | |
39 | } | |
40 | ||
41 | /* First parse the mapping file so we know how big we need to | |
42 | make our tables. We also do some sanity checks at this | |
43 | time. */ | |
44 | while (!feof (file)) | |
45 | { | |
46 | int matches; | |
47 | ||
48 | matches = fscanf (file, "%[^\n:]", dummy); | |
49 | if (!matches) | |
50 | { | |
51 | fprintf (stderr, "%s: unable to parse mapping file %s.\n", | |
52 | whoami, filename); | |
53 | done (1); | |
54 | } | |
55 | ||
56 | /* Just skip messages about files with no symbols. */ | |
57 | if (!strncmp (dummy, "No symbols in ", 14)) | |
58 | { | |
59 | fscanf (file, "\n"); | |
60 | continue; | |
61 | } | |
62 | ||
63 | /* Don't care what else is on this line at this point. */ | |
64 | fscanf (file, "%[^\n]\n", dummy); | |
65 | count++; | |
66 | } | |
67 | ||
68 | /* Now we know how big we need to make our table. */ | |
69 | symbol_map = xmalloc (count * sizeof (struct function_map)); | |
70 | ||
71 | /* Rewind the input file so we can read it again. */ | |
72 | rewind (file); | |
73 | ||
74 | /* Read each entry and put it into the table. */ | |
75 | count = 0; | |
76 | while (!feof (file)) | |
77 | { | |
78 | int matches; | |
79 | char *tmp; | |
80 | ||
81 | matches = fscanf (file, "%[^\n:]", dummy); | |
82 | if (!matches) | |
83 | { | |
84 | fprintf (stderr, "%s: unable to parse mapping file %s.\n", | |
85 | whoami, filename); | |
86 | done (1); | |
87 | } | |
88 | ||
89 | /* Just skip messages about files with no symbols. */ | |
90 | if (!strncmp (dummy, "No symbols in ", 14)) | |
91 | { | |
92 | fscanf (file, "\n"); | |
93 | continue; | |
94 | } | |
95 | ||
96 | /* dummy has the filename, go ahead and copy it. */ | |
97 | symbol_map[count].file_name = xmalloc (strlen (dummy) + 1); | |
98 | strcpy (symbol_map[count].file_name, dummy); | |
99 | ||
100 | /* Now we need the function name. */ | |
101 | fscanf (file, "%[^\n]\n", dummy); | |
102 | tmp = strrchr (dummy, ' ') + 1; | |
103 | symbol_map[count].function_name = xmalloc (strlen (tmp) + 1); | |
104 | strcpy (symbol_map[count].function_name, tmp); | |
105 | count++; | |
106 | } | |
107 | ||
108 | /* Record the size of the map table for future reference. */ | |
109 | symbol_map_count = count; | |
110 | } | |
5489fcc3 KR |
111 | |
112 | void | |
12516a37 | 113 | DEFUN (core_init, (a_out_name), const char *a_out_name) |
5489fcc3 | 114 | { |
12516a37 KR |
115 | core_bfd = bfd_openr (a_out_name, 0); |
116 | ||
117 | if (!core_bfd) | |
118 | { | |
119 | perror (a_out_name); | |
120 | done (1); | |
03c35bcb | 121 | } |
12516a37 KR |
122 | |
123 | if (!bfd_check_format (core_bfd, bfd_object)) | |
124 | { | |
125 | fprintf (stderr, "%s: %s: not in a.out format\n", whoami, a_out_name); | |
126 | done (1); | |
03c35bcb | 127 | } |
12516a37 KR |
128 | |
129 | /* get core's text section: */ | |
130 | core_text_sect = bfd_get_section_by_name (core_bfd, ".text"); | |
131 | if (!core_text_sect) | |
132 | { | |
133 | core_text_sect = bfd_get_section_by_name (core_bfd, "$CODE$"); | |
134 | if (!core_text_sect) | |
135 | { | |
136 | fprintf (stderr, "%s: can't find .text section in %s\n", | |
137 | whoami, a_out_name); | |
138 | done (1); | |
03c35bcb KR |
139 | } |
140 | } | |
12516a37 KR |
141 | |
142 | /* read core's symbol table: */ | |
143 | ||
144 | /* this will probably give us more than we need, but that's ok: */ | |
145 | core_num_syms = bfd_get_symtab_upper_bound (core_bfd); | |
146 | if (core_num_syms < 0) | |
147 | { | |
148 | fprintf (stderr, "%s: %s: %s\n", whoami, a_out_name, | |
149 | bfd_errmsg (bfd_get_error ())); | |
150 | done (1); | |
03c35bcb | 151 | } |
12516a37 KR |
152 | |
153 | core_syms = (asymbol **) xmalloc (core_num_syms); | |
154 | core_num_syms = bfd_canonicalize_symtab (core_bfd, core_syms); | |
155 | if (core_num_syms < 0) | |
156 | { | |
157 | fprintf (stderr, "%s: %s: %s\n", whoami, a_out_name, | |
158 | bfd_errmsg (bfd_get_error ())); | |
159 | done (1); | |
03c35bcb | 160 | } |
64c50fc5 JL |
161 | |
162 | if (function_mapping_file) | |
163 | read_function_mappings (function_mapping_file); | |
03c35bcb | 164 | } |
5489fcc3 KR |
165 | |
166 | ||
167 | /* | |
168 | * Read in the text space of an a.out file | |
169 | */ | |
170 | void | |
12516a37 | 171 | DEFUN (core_get_text_space, (core_bfd), bfd * core_bfd) |
5489fcc3 | 172 | { |
12516a37 KR |
173 | core_text_space = (PTR) malloc (core_text_sect->_raw_size); |
174 | ||
175 | if (!core_text_space) | |
5489fcc3 | 176 | { |
12516a37 KR |
177 | fprintf (stderr, "%s: ran out room for %ld bytes of text space\n", |
178 | whoami, core_text_sect->_raw_size); | |
179 | done (1); | |
03c35bcb | 180 | } |
12516a37 KR |
181 | if (!bfd_get_section_contents (core_bfd, core_text_sect, core_text_space, |
182 | 0, core_text_sect->_raw_size)) | |
183 | { | |
184 | bfd_perror ("bfd_get_section_contents"); | |
185 | free (core_text_space); | |
186 | core_text_space = 0; | |
03c35bcb | 187 | } |
12516a37 KR |
188 | if (!core_text_space) |
189 | { | |
190 | fprintf (stderr, "%s: can't do -c\n", whoami); | |
03c35bcb KR |
191 | } |
192 | } | |
5489fcc3 KR |
193 | |
194 | ||
195 | /* | |
196 | * Return class of symbol SYM. The returned class can be any of: | |
12516a37 KR |
197 | * 0 -> symbol is not interesting to us |
198 | * 'T' -> symbol is a global name | |
199 | * 't' -> symbol is a local (static) name | |
5489fcc3 KR |
200 | */ |
201 | static int | |
12516a37 | 202 | DEFUN (core_sym_class, (sym), asymbol * sym) |
5489fcc3 | 203 | { |
12516a37 KR |
204 | symbol_info syminfo; |
205 | const char *name; | |
206 | char sym_prefix; | |
207 | int i; | |
208 | ||
0f579087 | 209 | if (sym->section == NULL || (sym->flags & BSF_DEBUGGING) != 0) |
12516a37 KR |
210 | { |
211 | return 0; | |
03c35bcb | 212 | } |
12516a37 | 213 | |
0f579087 ILT |
214 | /* |
215 | * Must be a text symbol, and static text symbols don't qualify if | |
216 | * ignore_static_funcs set. | |
217 | */ | |
12516a37 KR |
218 | if (ignore_static_funcs && (sym->flags & BSF_LOCAL)) |
219 | { | |
220 | DBG (AOUTDEBUG, printf ("[core_sym_class] %s: not a function\n", | |
5489fcc3 | 221 | sym->name)); |
12516a37 | 222 | return 0; |
03c35bcb | 223 | } |
5489fcc3 | 224 | |
12516a37 KR |
225 | bfd_get_symbol_info (core_bfd, sym, &syminfo); |
226 | i = syminfo.type; | |
5489fcc3 | 227 | |
12516a37 KR |
228 | if (i == 'T') |
229 | { | |
230 | return i; /* it's a global symbol */ | |
03c35bcb | 231 | } |
5489fcc3 | 232 | |
12516a37 KR |
233 | if (i != 't') |
234 | { | |
235 | /* not a static text symbol */ | |
236 | DBG (AOUTDEBUG, printf ("[core_sym_class] %s is of class %c\n", | |
5489fcc3 | 237 | sym->name, i)); |
12516a37 | 238 | return 0; |
03c35bcb | 239 | } |
12516a37 KR |
240 | |
241 | /* do some more filtering on static function-names: */ | |
242 | ||
243 | if (ignore_static_funcs) | |
244 | { | |
245 | return 0; | |
03c35bcb | 246 | } |
12516a37 KR |
247 | /* |
248 | * Can't zero-length name or funny characters in name, where | |
249 | * `funny' includes: `.' (.o file names) and `$' (Pascal labels). | |
250 | */ | |
251 | if (!sym->name || sym->name[0] == '\0') | |
5489fcc3 | 252 | { |
12516a37 | 253 | return 0; |
03c35bcb | 254 | } |
12516a37 KR |
255 | |
256 | for (name = sym->name; *name; ++name) | |
257 | { | |
258 | if (*name == '.' || *name == '$') | |
259 | { | |
260 | return 0; | |
03c35bcb KR |
261 | } |
262 | } | |
12516a37 KR |
263 | /* |
264 | * On systems where the C compiler adds an underscore to all | |
265 | * names, static names without underscores seem usually to be | |
266 | * labels in hand written assembler in the library. We don't want | |
267 | * these names. This is certainly necessary on a Sparc running | |
268 | * SunOS 4.1 (try profiling a program that does a lot of | |
269 | * division). I don't know whether it has harmful side effects on | |
270 | * other systems. Perhaps it should be made configurable. | |
271 | */ | |
272 | sym_prefix = bfd_get_symbol_leading_char (core_bfd); | |
273 | if (sym_prefix && sym_prefix != sym->name[0] | |
274 | /* | |
275 | * GCC may add special symbols to help gdb figure out the file | |
276 | * language. We want to ignore these, since sometimes they mask | |
277 | * the real function. (dj@ctron) | |
278 | */ | |
279 | || !strncmp (sym->name, "__gnu_compiled", 14) | |
280 | || !strncmp (sym->name, "___gnu_compiled", 15)) | |
281 | { | |
282 | return 0; | |
03c35bcb | 283 | } |
32843f94 JL |
284 | |
285 | /* If the object file supports marking of function symbols, then we can | |
286 | zap anything that doesn't have BSF_FUNCTION set. */ | |
287 | if (ignore_non_functions && (sym->flags & BSF_FUNCTION) == 0) | |
288 | return 0; | |
289 | ||
12516a37 | 290 | return 't'; /* it's a static text symbol */ |
03c35bcb | 291 | } |
5489fcc3 KR |
292 | |
293 | ||
294 | /* | |
295 | * Get whatever source info we can get regarding address ADDR: | |
296 | */ | |
297 | static bool | |
12516a37 KR |
298 | DEFUN (get_src_info, (addr, filename, name, line_num), |
299 | bfd_vma addr AND const char **filename AND const char **name | |
300 | AND int *line_num) | |
5489fcc3 | 301 | { |
12516a37 KR |
302 | const char *fname = 0, *func_name = 0; |
303 | int l = 0; | |
5489fcc3 | 304 | |
12516a37 KR |
305 | if (bfd_find_nearest_line (core_bfd, core_text_sect, core_syms, |
306 | addr - core_text_sect->vma, | |
643f17d2 | 307 | &fname, &func_name, (unsigned int *) &l) |
12516a37 | 308 | && fname && func_name && l) |
5489fcc3 | 309 | { |
12516a37 | 310 | DBG (AOUTDEBUG, printf ("[get_src_info] 0x%lx -> %s:%d (%s)\n", |
5489fcc3 | 311 | addr, fname, l, func_name)); |
12516a37 KR |
312 | *filename = fname; |
313 | *name = func_name; | |
314 | *line_num = l; | |
315 | return TRUE; | |
316 | } | |
317 | else | |
318 | { | |
319 | DBG (AOUTDEBUG, printf ("[get_src_info] no info for 0x%lx (%s:%d,%s)\n", | |
5489fcc3 KR |
320 | (long) addr, fname ? fname : "<unknown>", l, |
321 | func_name ? func_name : "<unknown>")); | |
12516a37 | 322 | return FALSE; |
03c35bcb KR |
323 | } |
324 | } | |
5489fcc3 KR |
325 | |
326 | ||
327 | /* | |
328 | * Read in symbol table from core. One symbol per function is | |
329 | * entered. | |
330 | */ | |
331 | void | |
12516a37 | 332 | DEFUN (core_create_function_syms, (core_bfd), bfd * core_bfd) |
5489fcc3 | 333 | { |
12516a37 KR |
334 | bfd_vma min_vma = ~0, max_vma = 0; |
335 | const char *filename, *func_name; | |
336 | int class; | |
64c50fc5 | 337 | long i, j, found, skip; |
12516a37 KR |
338 | |
339 | /* pass 1 - determine upper bound on number of function names: */ | |
340 | symtab.len = 0; | |
341 | for (i = 0; i < core_num_syms; ++i) | |
342 | { | |
343 | if (!core_sym_class (core_syms[i])) | |
344 | { | |
345 | continue; | |
03c35bcb | 346 | } |
64c50fc5 JL |
347 | |
348 | /* This should be replaced with a binary search or hashed | |
349 | search. Gross. | |
350 | ||
351 | Don't create a symtab entry for a function that has | |
352 | a mapping to a file, unless it's the first function | |
353 | in the file. */ | |
354 | skip = 0; | |
355 | for (j = 0; j < symbol_map_count; j++) | |
356 | if (!strcmp (core_syms[i]->name, symbol_map[j].function_name)) | |
357 | { | |
358 | if (j > 0 && ! strcmp (symbol_map [j].file_name, | |
359 | symbol_map [j - 1].file_name)) | |
360 | skip = 1; | |
361 | break; | |
362 | } | |
363 | if (!skip) | |
364 | ++symtab.len; | |
03c35bcb | 365 | } |
12516a37 KR |
366 | |
367 | if (symtab.len == 0) | |
368 | { | |
369 | fprintf (stderr, "%s: file `%s' has no symbols\n", whoami, a_out_name); | |
370 | done (1); | |
03c35bcb | 371 | } |
12516a37 KR |
372 | |
373 | /* the "+ 2" is for the sentinels: */ | |
374 | symtab.base = (Sym *) xmalloc ((symtab.len + 2) * sizeof (Sym)); | |
375 | ||
376 | /* pass 2 - create symbols: */ | |
377 | ||
378 | symtab.limit = symtab.base; | |
379 | for (i = 0; i < core_num_syms; ++i) | |
380 | { | |
381 | class = core_sym_class (core_syms[i]); | |
382 | if (!class) | |
383 | { | |
384 | DBG (AOUTDEBUG, | |
385 | printf ("[core_create_function_syms] rejecting: 0x%lx %s\n", | |
5489fcc3 | 386 | core_syms[i]->value, core_syms[i]->name)); |
12516a37 | 387 | continue; |
03c35bcb | 388 | } |
64c50fc5 JL |
389 | /* This should be replaced with a binary search or hashed |
390 | search. Gross. */ | |
391 | ||
392 | skip = 0; | |
393 | found = 0; | |
394 | for (j = 0; j < symbol_map_count; j++) | |
395 | if (!strcmp (core_syms[i]->name, symbol_map[j].function_name)) | |
396 | { | |
397 | if (j > 0 && ! strcmp (symbol_map [j].file_name, | |
398 | symbol_map [j - 1].file_name)) | |
399 | skip = 1; | |
400 | else | |
401 | found = j; | |
402 | break; | |
403 | } | |
404 | ||
405 | if (skip) | |
406 | continue; | |
5489fcc3 | 407 | |
12516a37 | 408 | sym_init (symtab.limit); |
5489fcc3 | 409 | |
12516a37 | 410 | /* symbol offsets are always section-relative: */ |
5489fcc3 | 411 | |
12516a37 | 412 | symtab.limit->addr = core_syms[i]->value + core_syms[i]->section->vma; |
64c50fc5 JL |
413 | if (symbol_map_count |
414 | && !strcmp (core_syms[i]->name, symbol_map[found].function_name)) | |
415 | { | |
416 | symtab.limit->name = symbol_map[found].file_name; | |
417 | symtab.limit->mapped = 1; | |
418 | } | |
419 | else | |
420 | { | |
421 | symtab.limit->name = core_syms[i]->name; | |
422 | symtab.limit->mapped = 0; | |
423 | } | |
5489fcc3 KR |
424 | |
425 | #ifdef __osf__ | |
12516a37 KR |
426 | /* |
427 | * Suppress symbols that are not function names. This is | |
428 | * useful to suppress code-labels and aliases. | |
429 | * | |
430 | * This is known to be useful under DEC's OSF/1. Under SunOS 4.x, | |
431 | * labels do not appear in the symbol table info, so this isn't | |
432 | * necessary. | |
433 | */ | |
434 | if (get_src_info (symtab.limit->addr, &filename, &func_name, | |
435 | &symtab.limit->line_num)) | |
5489fcc3 | 436 | { |
12516a37 KR |
437 | symtab.limit->file = source_file_lookup_path (filename); |
438 | ||
439 | if (strcmp (symtab.limit->name, func_name) != 0) | |
440 | { | |
441 | /* | |
442 | * The symbol's address maps to a different name, so | |
443 | * it can't be a function-entry point. This happens | |
444 | * for labels, for example. | |
445 | */ | |
446 | DBG (AOUTDEBUG, | |
447 | printf ("[core_create_function_syms: rej %s (maps to %s)\n", | |
448 | symtab.limit->name, func_name)); | |
449 | continue; | |
03c35bcb KR |
450 | } |
451 | } | |
5489fcc3 KR |
452 | #endif |
453 | ||
12516a37 KR |
454 | symtab.limit->is_func = TRUE; |
455 | symtab.limit->is_bb_head = TRUE; | |
456 | if (class == 't') | |
457 | { | |
458 | symtab.limit->is_static = TRUE; | |
03c35bcb | 459 | } |
12516a37 KR |
460 | |
461 | min_vma = MIN (symtab.limit->addr, min_vma); | |
462 | max_vma = MAX (symtab.limit->addr, max_vma); | |
463 | ||
464 | /* | |
465 | * If we see "main" without an initial '_', we assume names | |
466 | * are *not* prefixed by '_'. | |
467 | */ | |
468 | if (symtab.limit->name[0] == 'm' && discard_underscores | |
469 | && strcmp (symtab.limit->name, "main") == 0) | |
5489fcc3 | 470 | { |
12516a37 | 471 | discard_underscores = 0; |
03c35bcb | 472 | } |
5489fcc3 | 473 | |
12516a37 KR |
474 | DBG (AOUTDEBUG, printf ("[core_create_function_syms] %ld %s 0x%lx\n", |
475 | (long) (symtab.limit - symtab.base), | |
5489fcc3 | 476 | symtab.limit->name, symtab.limit->addr)); |
12516a37 | 477 | ++symtab.limit; |
03c35bcb | 478 | } |
5489fcc3 | 479 | |
12516a37 | 480 | /* create sentinels: */ |
5489fcc3 | 481 | |
12516a37 KR |
482 | sym_init (symtab.limit); |
483 | symtab.limit->name = "<locore>"; | |
484 | symtab.limit->addr = 0; | |
485 | symtab.limit->end_addr = min_vma - 1; | |
486 | ++symtab.limit; | |
5489fcc3 | 487 | |
12516a37 KR |
488 | sym_init (symtab.limit); |
489 | symtab.limit->name = "<hicore>"; | |
490 | symtab.limit->addr = max_vma + 1; | |
491 | symtab.limit->end_addr = ~0; | |
492 | ++symtab.limit; | |
5489fcc3 | 493 | |
12516a37 KR |
494 | symtab.len = symtab.limit - symtab.base; |
495 | symtab_finalize (&symtab); | |
03c35bcb | 496 | } |
5489fcc3 KR |
497 | |
498 | ||
499 | /* | |
500 | * Read in symbol table from core. One symbol per line of source code | |
501 | * is entered. | |
502 | */ | |
503 | void | |
12516a37 | 504 | DEFUN (core_create_line_syms, (core_bfd), bfd * core_bfd) |
5489fcc3 | 505 | { |
12516a37 KR |
506 | char prev_name[PATH_MAX], prev_filename[PATH_MAX]; |
507 | bfd_vma vma, min_vma = ~0, max_vma = 0; | |
508 | bfd_vma offset, prev_offset, min_dist; | |
509 | Sym *prev, dummy, *sentinel, *sym; | |
510 | const char *filename; | |
511 | int prev_line_num, i; | |
512 | Sym_Table ltab; | |
513 | /* | |
514 | * Create symbols for functions as usual. This is necessary in | |
515 | * cases where parts of a program were not compiled with -g. For | |
516 | * those parts we still want to get info at the function level: | |
517 | */ | |
518 | core_create_function_syms (core_bfd); | |
519 | ||
520 | /* pass 1 - counter number of symbols: */ | |
521 | ||
522 | /* | |
523 | * To find all line information, walk through all possible | |
524 | * text-space addresses (one by one!) and get the debugging | |
525 | * info for each address. When the debugging info changes, | |
526 | * it is time to create a new symbol. | |
527 | * | |
528 | * Of course, this is rather slow and it would be better if | |
529 | * bfd would provide an iterator for enumerating all line | |
530 | * infos, but for now, we try to speed up the second pass | |
531 | * by determining what the minimum code distance between two | |
532 | * lines is. | |
533 | */ | |
534 | prev_name[0] = '\0'; | |
535 | ltab.len = 0; | |
536 | min_dist = core_text_sect->_raw_size; | |
537 | prev_offset = -min_dist; | |
538 | prev_filename[0] = '\0'; | |
539 | prev_line_num = 0; | |
0f579087 | 540 | for (offset = 0; offset < core_text_sect->_raw_size; offset += MIN_INSN_SIZE) |
12516a37 KR |
541 | { |
542 | vma = core_text_sect->vma + offset; | |
543 | if (!get_src_info (vma, &filename, &dummy.name, &dummy.line_num) | |
544 | || (prev_line_num == dummy.line_num && | |
545 | strcmp (prev_name, dummy.name) == 0 | |
546 | && strcmp (prev_filename, filename) == 0)) | |
5489fcc3 | 547 | { |
12516a37 | 548 | continue; |
03c35bcb | 549 | } |
12516a37 KR |
550 | |
551 | ++ltab.len; | |
552 | prev_line_num = dummy.line_num; | |
553 | strcpy (prev_name, dummy.name); | |
554 | strcpy (prev_filename, filename); | |
555 | ||
556 | if (offset - prev_offset < min_dist) | |
5489fcc3 | 557 | { |
12516a37 | 558 | min_dist = offset - prev_offset; |
03c35bcb | 559 | } |
12516a37 KR |
560 | prev_offset = offset; |
561 | ||
562 | min_vma = MIN (vma, min_vma); | |
563 | max_vma = MAX (vma, max_vma); | |
03c35bcb | 564 | } |
12516a37 KR |
565 | |
566 | DBG (AOUTDEBUG, printf ("[core_create_line_syms] min_dist=%lx\n", min_dist)); | |
567 | ||
568 | /* make room for function symbols, too: */ | |
569 | ltab.len += symtab.len; | |
570 | ltab.base = (Sym *) xmalloc (ltab.len * sizeof (Sym)); | |
571 | ltab.limit = ltab.base; | |
572 | ||
573 | /* pass 2 - create symbols: */ | |
574 | ||
575 | prev = 0; | |
576 | for (offset = 0; offset < core_text_sect->_raw_size; offset += min_dist) | |
577 | { | |
578 | sym_init (ltab.limit); | |
579 | if (!get_src_info (core_text_sect->vma + offset, &filename, | |
580 | <ab.limit->name, <ab.limit->line_num) | |
581 | || (prev && prev->line_num == ltab.limit->line_num | |
582 | && strcmp (prev->name, ltab.limit->name) == 0 | |
583 | && strcmp (prev->file->name, filename) == 0)) | |
5489fcc3 | 584 | { |
12516a37 | 585 | continue; |
03c35bcb | 586 | } |
12516a37 KR |
587 | |
588 | /* make name pointer a malloc'ed string: */ | |
589 | ltab.limit->name = strdup (ltab.limit->name); | |
590 | ltab.limit->file = source_file_lookup_path (filename); | |
591 | ||
592 | ltab.limit->addr = core_text_sect->vma + offset; | |
593 | prev = ltab.limit; | |
594 | ||
595 | /* | |
596 | * If we see "main" without an initial '_', we assume names | |
597 | * are *not* prefixed by '_'. | |
598 | */ | |
599 | if (ltab.limit->name[0] == 'm' && discard_underscores | |
600 | && strcmp (ltab.limit->name, "main") == 0) | |
601 | { | |
602 | discard_underscores = 0; | |
03c35bcb | 603 | } |
5489fcc3 | 604 | |
12516a37 | 605 | DBG (AOUTDEBUG, printf ("[core_create_line_syms] %d %s 0x%lx\n", |
5489fcc3 KR |
606 | ltab.len, ltab.limit->name, |
607 | ltab.limit->addr)); | |
12516a37 | 608 | ++ltab.limit; |
03c35bcb | 609 | } |
12516a37 KR |
610 | |
611 | /* update sentinels: */ | |
612 | ||
613 | sentinel = sym_lookup (&symtab, 0); | |
614 | if (strcmp (sentinel->name, "<locore>") == 0 | |
615 | && min_vma <= sentinel->end_addr) | |
616 | { | |
617 | sentinel->end_addr = min_vma - 1; | |
03c35bcb | 618 | } |
12516a37 KR |
619 | |
620 | sentinel = sym_lookup (&symtab, ~0); | |
621 | if (strcmp (sentinel->name, "<hicore>") == 0 && max_vma >= sentinel->addr) | |
622 | { | |
623 | sentinel->addr = max_vma + 1; | |
03c35bcb | 624 | } |
5489fcc3 | 625 | |
12516a37 KR |
626 | /* copy in function symbols: */ |
627 | memcpy (ltab.limit, symtab.base, symtab.len * sizeof (Sym)); | |
628 | ltab.limit += symtab.len; | |
5489fcc3 | 629 | |
12516a37 | 630 | if (ltab.limit - ltab.base != ltab.len) |
5489fcc3 | 631 | { |
12516a37 KR |
632 | fprintf (stderr, |
633 | "%s: somebody miscounted: ltab.len=%ld instead of %d\n", | |
634 | whoami, (long) (ltab.limit - ltab.base), ltab.len); | |
635 | done (1); | |
03c35bcb | 636 | } |
12516a37 KR |
637 | |
638 | /* finalize ltab and make it symbol table: */ | |
639 | ||
640 | symtab_finalize (<ab); | |
641 | free (symtab.base); | |
642 | symtab = ltab; | |
643 | ||
644 | /* now go through all core symbols and set is_static accordingly: */ | |
645 | ||
646 | for (i = 0; i < core_num_syms; ++i) | |
647 | { | |
648 | if (core_sym_class (core_syms[i]) == 't') | |
649 | { | |
650 | sym = sym_lookup (&symtab, core_syms[i]->value | |
651 | + core_syms[i]->section->vma); | |
652 | do | |
653 | { | |
654 | sym++->is_static = TRUE; | |
655 | } | |
656 | while (sym->file == sym[-1].file && | |
657 | strcmp (sym->name, sym[-1].name) == 0); | |
03c35bcb KR |
658 | } |
659 | } | |
12516a37 | 660 | |
03c35bcb | 661 | } |