Commit | Line | Data |
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e38e0312 JG |
1 | /* Read AIXcoff symbol tables and convert to internal format, for GDB. |
2 | Copyright (C) 1986-1991 Free Software Foundation, Inc. | |
3 | Derived from coffread.c, dbxread.c, and a lot of hacking. | |
4 | Contributed by IBM Corporation. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
21 | ||
3ae444f8 | 22 | #include <stdio.h> |
e38e0312 JG |
23 | #include "defs.h" |
24 | #include "bfd.h" | |
e38e0312 | 25 | |
818de002 PB |
26 | #ifdef IBM6000 |
27 | /* Native only: Need struct tbtable in <sys/debug.h>. */ | |
28 | ||
e38e0312 JG |
29 | /* AIX COFF names have a preceeding dot `.' */ |
30 | #define NAMES_HAVE_DOT 1 | |
31 | ||
32 | #include <sys/types.h> | |
33 | #include <fcntl.h> | |
34 | #include <ctype.h> | |
35 | ||
36 | #include "obstack.h" | |
37 | #include <sys/param.h> | |
5e4d4b0f | 38 | #ifndef NO_SYS_FILE |
e38e0312 | 39 | #include <sys/file.h> |
5e4d4b0f | 40 | #endif |
e38e0312 | 41 | #include <sys/stat.h> |
818de002 PB |
42 | /*#include <linenum.h>*/ |
43 | #include <sys/debug.h> | |
e38e0312 JG |
44 | |
45 | #include "symtab.h" | |
1ab3bf1b | 46 | #include "gdbtypes.h" |
e38e0312 JG |
47 | #include "symfile.h" |
48 | #include "buildsym.h" | |
49 | ||
f5f0679a | 50 | #include "coff/internal.h" /* FIXME, internal data from BFD */ |
e38e0312 | 51 | #include "libcoff.h" /* FIXME, internal data from BFD */ |
f5f0679a | 52 | #include "coff/rs6000.h" /* FIXME, raw file-format guts of xcoff */ |
e38e0312 | 53 | |
e38e0312 JG |
54 | /* Simplified internal version of coff symbol table information */ |
55 | ||
56 | struct coff_symbol { | |
57 | char *c_name; | |
58 | int c_symnum; /* symbol number of this entry */ | |
59 | int c_nsyms; /* 0 if syment only, 1 if syment + auxent */ | |
60 | long c_value; | |
61 | int c_sclass; | |
62 | int c_secnum; | |
63 | unsigned int c_type; | |
64 | }; | |
65 | ||
66 | /* The COFF line table, in raw form. */ | |
67 | static char *linetab = NULL; /* Its actual contents */ | |
68 | static long linetab_offset; /* Its offset in the file */ | |
69 | static unsigned long linetab_size; /* Its size */ | |
70 | ||
71 | /* last function's saved coff symbol `cs' */ | |
72 | ||
73 | static struct coff_symbol fcn_cs_saved; | |
74 | ||
75 | static bfd *symfile_bfd; | |
76 | ||
77 | /* Core address of start and end of text of current source file. | |
78 | This is calculated from the first function seen after a C_FILE | |
79 | symbol. */ | |
80 | ||
818de002 | 81 | |
e38e0312 JG |
82 | static CORE_ADDR cur_src_end_addr; |
83 | ||
84 | /* Core address of the end of the first object file. */ | |
85 | ||
86 | static CORE_ADDR first_object_file_end; | |
87 | ||
88 | /* pointer to the string table */ | |
89 | static char *strtbl; | |
90 | ||
91 | /* length of the string table */ | |
92 | static int strtbl_len; | |
93 | ||
94 | /* pointer to debug section */ | |
95 | static char *debugsec; | |
96 | ||
97 | /* pointer to the a.out symbol table */ | |
98 | static char *symtbl; | |
99 | ||
100 | /* initial symbol-table-debug-string vector length */ | |
101 | ||
102 | #define INITIAL_STABVECTOR_LENGTH 40 | |
103 | ||
104 | struct pending_stabs *global_stabs; | |
818de002 | 105 | |
e38e0312 JG |
106 | |
107 | /* Nonzero if within a function (so symbols should be local, | |
108 | if nothing says specifically). */ | |
109 | ||
110 | int within_function; | |
111 | ||
112 | /* Local variables that hold the shift and mask values for the | |
113 | COFF file that we are currently reading. These come back to us | |
114 | from BFD, and are referenced by their macro names, as well as | |
115 | internally to the BTYPE, ISPTR, ISFCN, ISARY, ISTAG, and DECREF | |
116 | macros from ../internalcoff.h . */ | |
117 | ||
118 | static unsigned local_n_btshft; | |
119 | static unsigned local_n_tmask; | |
120 | ||
121 | #undef N_BTSHFT | |
122 | #define N_BTSHFT local_n_btshft | |
123 | #undef N_TMASK | |
124 | #define N_TMASK local_n_tmask | |
125 | ||
126 | /* Local variables that hold the sizes in the file of various COFF structures. | |
127 | (We only need to know this to read them from the file -- BFD will then | |
128 | translate the data in them, into `internal_xxx' structs in the right | |
129 | byte order, alignment, etc.) */ | |
130 | ||
131 | static unsigned local_symesz; | |
132 | ||
818de002 | 133 | |
e38e0312 JG |
134 | /* coff_symfile_init() |
135 | is the coff-specific initialization routine for reading symbols. | |
136 | It is passed a struct sym_fns which contains, among other things, | |
137 | the BFD for the file whose symbols are being read, and a slot for | |
138 | a pointer to "private data" which we fill with cookies and other | |
139 | treats for coff_symfile_read(). | |
140 | ||
141 | We will only be called if this is a COFF or COFF-like file. | |
142 | BFD handles figuring out the format of the file, and code in symtab.c | |
143 | uses BFD's determination to vector to us. | |
144 | ||
145 | The ultimate result is a new symtab (or, FIXME, eventually a psymtab). */ | |
146 | ||
147 | struct coff_symfile_info { | |
148 | file_ptr min_lineno_offset; /* Where in file lowest line#s are */ | |
149 | file_ptr max_lineno_offset; /* 1+last byte of line#s in file */ | |
150 | }; | |
151 | ||
152 | ||
1ab3bf1b | 153 | static void |
818de002 PB |
154 | enter_line_range PARAMS ((struct subfile *, unsigned, unsigned, |
155 | CORE_ADDR, CORE_ADDR, unsigned *)); | |
1ab3bf1b JG |
156 | |
157 | static void | |
158 | aixcoff_symfile_read PARAMS ((struct sym_fns *, CORE_ADDR, int)); | |
159 | ||
160 | static void | |
161 | free_debugsection PARAMS ((void)); | |
162 | ||
163 | static int | |
164 | init_debugsection PARAMS ((bfd *)); | |
165 | ||
166 | static int | |
167 | init_stringtab PARAMS ((bfd *, long, struct objfile *)); | |
168 | ||
169 | static void | |
170 | aixcoff_symfile_init PARAMS ((struct sym_fns *)); | |
171 | ||
172 | static void | |
173 | aixcoff_new_init PARAMS ((void)); | |
174 | ||
1ab3bf1b JG |
175 | static int |
176 | init_lineno PARAMS ((bfd *, long, int)); | |
177 | ||
178 | static void | |
179 | find_linenos PARAMS ((bfd *, sec_ptr, PTR)); | |
180 | ||
181 | static int | |
182 | read_symbol_lineno PARAMS ((char *, int)); | |
183 | ||
184 | static int | |
185 | read_symbol_nvalue PARAMS ((char *, int)); | |
186 | ||
187 | static struct symbol * | |
188 | process_xcoff_symbol PARAMS ((struct coff_symbol *, struct objfile *)); | |
189 | ||
190 | static void | |
191 | read_xcoff_symtab PARAMS ((struct objfile *, int)); | |
192 | ||
1ab3bf1b JG |
193 | static void |
194 | add_stab_to_list PARAMS ((char *, struct pending_stabs **)); | |
195 | ||
196 | static void | |
197 | sort_syms PARAMS ((void)); | |
198 | ||
199 | static int | |
200 | compare_symbols PARAMS ((const void *, const void *)); | |
201 | ||
e38e0312 JG |
202 | /* Call sort_syms to sort alphabetically |
203 | the symbols of each block of each symtab. */ | |
204 | ||
205 | static int | |
1ab3bf1b JG |
206 | compare_symbols (s1p, s2p) |
207 | const PTR s1p; | |
208 | const PTR s2p; | |
e38e0312 JG |
209 | { |
210 | /* Names that are less should come first. */ | |
1ab3bf1b JG |
211 | register struct symbol **s1 = (struct symbol **) s1p; |
212 | register struct symbol **s2 = (struct symbol **) s2p; | |
e38e0312 JG |
213 | register int namediff = strcmp (SYMBOL_NAME (*s1), SYMBOL_NAME (*s2)); |
214 | if (namediff != 0) | |
215 | return namediff; | |
216 | ||
217 | /* For symbols of the same name, registers should come first. */ | |
218 | return ((SYMBOL_CLASS (*s2) == LOC_REGISTER) | |
219 | - (SYMBOL_CLASS (*s1) == LOC_REGISTER)); | |
220 | } | |
221 | ||
222 | ||
223 | /* Sort a vector of symbols by their value. */ | |
224 | ||
225 | static void | |
226 | sort_syms () | |
227 | { | |
228 | register struct symtab *s; | |
1ab3bf1b | 229 | register struct objfile *objfile; |
e38e0312 JG |
230 | register int i, nbl; |
231 | register struct blockvector *bv; | |
232 | register struct block *b; | |
233 | ||
1ab3bf1b | 234 | for (objfile = object_files; objfile != NULL; objfile = objfile -> next) |
e38e0312 | 235 | { |
1ab3bf1b JG |
236 | for (s = objfile -> symtabs; s != NULL; s = s -> next) |
237 | { | |
238 | bv = BLOCKVECTOR (s); | |
239 | nbl = BLOCKVECTOR_NBLOCKS (bv); | |
240 | for (i = 0; i < nbl; i++) | |
241 | { | |
242 | b = BLOCKVECTOR_BLOCK (bv, i); | |
243 | if (BLOCK_SHOULD_SORT (b)) | |
244 | { | |
245 | qsort (&BLOCK_SYM (b, 0), BLOCK_NSYMS (b), | |
246 | sizeof (struct symbol *), compare_symbols); | |
247 | } | |
248 | } | |
249 | } | |
e38e0312 | 250 | } |
e38e0312 JG |
251 | } |
252 | ||
253 | ||
254 | /* add a given stab string into given stab vector. */ | |
255 | ||
256 | static void | |
257 | add_stab_to_list (stabname, stabvector) | |
258 | char *stabname; | |
259 | struct pending_stabs **stabvector; | |
260 | { | |
261 | if ( *stabvector == NULL) { | |
262 | *stabvector = (struct pending_stabs *) | |
263 | xmalloc (sizeof (struct pending_stabs) + | |
264 | INITIAL_STABVECTOR_LENGTH * sizeof (char*)); | |
265 | (*stabvector)->count = 0; | |
266 | (*stabvector)->length = INITIAL_STABVECTOR_LENGTH; | |
267 | } | |
268 | else if ((*stabvector)->count >= (*stabvector)->length) { | |
269 | (*stabvector)->length += INITIAL_STABVECTOR_LENGTH; | |
270 | *stabvector = (struct pending_stabs *) | |
1ab3bf1b | 271 | xrealloc ((char *) *stabvector, sizeof (struct pending_stabs) + |
e38e0312 JG |
272 | (*stabvector)->length * sizeof (char*)); |
273 | } | |
274 | (*stabvector)->stab [(*stabvector)->count++] = stabname; | |
275 | } | |
276 | ||
277 | ||
818de002 PB |
278 | #if 0 |
279 | /* for all the stabs in a given stab vector, build appropriate types | |
280 | and fix their symbols in given symbol vector. */ | |
281 | ||
282 | void | |
283 | patch_block_stabs (symbols, stabs) | |
284 | struct pending *symbols; | |
285 | struct pending_stabs *stabs; | |
286 | { | |
287 | int ii; | |
288 | ||
289 | if (!stabs) | |
290 | return; | |
291 | ||
292 | /* for all the stab entries, find their corresponding symbols and | |
293 | patch their types! */ | |
294 | ||
295 | for (ii=0; ii < stabs->count; ++ii) { | |
296 | char *name = stabs->stab[ii]; | |
297 | char *pp = (char*) index (name, ':'); | |
298 | struct symbol *sym = find_symbol_in_list (symbols, name, pp-name); | |
299 | if (!sym) { | |
300 | ; | |
301 | /* printf ("ERROR! stab symbol not found!\n"); /* FIXME */ | |
302 | /* The above is a false alarm. There are cases the we can have | |
303 | a stab, without its symbol. xlc generates this for the extern | |
304 | definitions in inner blocks. */ | |
305 | } | |
306 | else { | |
307 | pp += 2; | |
308 | ||
309 | if (*(pp-1) == 'F' || *(pp-1) == 'f') | |
310 | SYMBOL_TYPE (sym) = lookup_function_type (read_type (&pp)); | |
311 | else | |
312 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); | |
313 | } | |
314 | } | |
315 | } | |
316 | #endif | |
317 | ||
318 | ||
319 | /* compare line table entry addresses. */ | |
320 | ||
321 | static int | |
322 | compare_lte (lte1, lte2) | |
323 | struct linetable_entry *lte1, *lte2; | |
324 | { | |
325 | return lte1->pc - lte2->pc; | |
326 | } | |
327 | ||
328 | /* Give a line table with function entries are marked, arrange its functions | |
329 | in assending order and strip off function entry markers and return it in | |
330 | a newly created table. If the old one is good enough, return the old one. */ | |
331 | ||
332 | static struct linetable * | |
333 | arrange_linetable (oldLineTb) | |
334 | struct linetable *oldLineTb; /* old linetable */ | |
335 | { | |
336 | int ii, jj, | |
337 | newline, /* new line count */ | |
338 | function_count; /* # of functions */ | |
339 | ||
340 | struct linetable_entry *fentry; /* function entry vector */ | |
341 | int fentry_size; /* # of function entries */ | |
342 | struct linetable *newLineTb; /* new line table */ | |
343 | ||
344 | #define NUM_OF_FUNCTIONS 20 | |
345 | ||
346 | fentry_size = NUM_OF_FUNCTIONS; | |
347 | fentry = (struct linetable_entry*) | |
348 | malloc (fentry_size * sizeof (struct linetable_entry)); | |
349 | ||
350 | for (function_count=0, ii=0; ii <oldLineTb->nitems; ++ii) { | |
351 | ||
352 | if (oldLineTb->item[ii].line == 0) { /* function entry found. */ | |
353 | ||
354 | if (function_count >= fentry_size) { /* make sure you have room. */ | |
355 | fentry_size *= 2; | |
356 | fentry = (struct linetable_entry*) | |
357 | realloc (fentry, fentry_size * sizeof (struct linetable_entry)); | |
358 | } | |
359 | fentry[function_count].line = ii; | |
360 | fentry[function_count].pc = oldLineTb->item[ii].pc; | |
361 | ++function_count; | |
362 | } | |
363 | } | |
364 | ||
365 | if (function_count == 0) { | |
366 | free (fentry); | |
367 | return oldLineTb; | |
368 | } | |
369 | else if (function_count > 1) | |
370 | qsort (fentry, function_count, sizeof(struct linetable_entry), compare_lte); | |
371 | ||
372 | /* allocate a new line table. */ | |
373 | newLineTb = (struct linetable*) malloc (sizeof (struct linetable) + | |
374 | (oldLineTb->nitems - function_count) * sizeof (struct linetable_entry)); | |
375 | ||
376 | /* if line table does not start with a function beginning, copy up until | |
377 | a function begin. */ | |
378 | ||
379 | newline = 0; | |
380 | if (oldLineTb->item[0].line != 0) | |
381 | for (newline=0; | |
382 | newline < oldLineTb->nitems && oldLineTb->item[newline].line; ++newline) | |
383 | newLineTb->item[newline] = oldLineTb->item[newline]; | |
384 | ||
385 | /* Now copy function lines one by one. */ | |
386 | ||
387 | for (ii=0; ii < function_count; ++ii) { | |
388 | for (jj = fentry[ii].line + 1; | |
389 | jj < oldLineTb->nitems && oldLineTb->item[jj].line != 0; | |
390 | ++jj, ++newline) | |
391 | newLineTb->item[newline] = oldLineTb->item[jj]; | |
392 | } | |
393 | free (fentry); | |
394 | newLineTb->nitems = oldLineTb->nitems - function_count; | |
395 | return newLineTb; | |
396 | } | |
397 | ||
398 | ||
399 | ||
400 | /* We try to detect the beginning of a compilation unit. That info will | |
401 | be used as an entry in line number recording routines (enter_line_range) */ | |
402 | ||
403 | static unsigned first_fun_line_offset; | |
404 | static unsigned first_fun_bf; | |
405 | ||
406 | #define mark_first_line(OFFSET, SYMNUM) \ | |
407 | if (!first_fun_line_offset) { \ | |
408 | first_fun_line_offset = OFFSET; \ | |
409 | first_fun_bf = SYMNUM; \ | |
410 | } | |
411 | ||
412 | ||
413 | /* include file support: C_BINCL/C_EINCL pairs will be kept in the | |
414 | following `IncludeChain'. At the end of each symtab (end_symtab), | |
415 | we will determine if we should create additional symtab's to | |
416 | represent if (the include files. */ | |
417 | ||
418 | ||
419 | typedef struct _inclTable { | |
420 | char *name; /* include filename */ | |
421 | int begin, end; /* offsets to the line table */ | |
422 | struct subfile *subfile; | |
423 | unsigned funStartLine; /* start line # of its function */ | |
424 | } InclTable; | |
425 | ||
426 | #define INITIAL_INCLUDE_TABLE_LENGTH 20 | |
427 | static InclTable *inclTable; /* global include table */ | |
428 | static int inclIndx; /* last entry to table */ | |
429 | static int inclLength; /* table length */ | |
430 | static int inclDepth; /* nested include depth */ | |
431 | ||
432 | ||
433 | static void | |
434 | record_include_begin (cs) | |
435 | struct coff_symbol *cs; | |
436 | { | |
437 | /* In aixcoff, we assume include files cannot be nested (not in .c file | |
438 | of course, but in corresponding .s files.) */ | |
439 | ||
440 | if (inclDepth) | |
441 | fatal ("aix internal: pending include file exists."); | |
442 | ||
443 | ++inclDepth; | |
444 | ||
445 | /* allocate an include file, or make room for the new entry */ | |
446 | if (inclLength == 0) { | |
447 | inclTable = (InclTable*) | |
448 | xmalloc (sizeof (InclTable) * INITIAL_INCLUDE_TABLE_LENGTH); | |
449 | bzero (inclTable, sizeof (InclTable) * INITIAL_INCLUDE_TABLE_LENGTH); | |
450 | inclLength = INITIAL_INCLUDE_TABLE_LENGTH; | |
451 | inclIndx = 0; | |
452 | } | |
453 | else if (inclIndx >= inclLength) { | |
454 | inclLength += INITIAL_INCLUDE_TABLE_LENGTH; | |
455 | inclTable = (InclTable*) | |
456 | xrealloc (inclTable, sizeof (InclTable) * inclLength); | |
457 | bzero (inclTable+inclLength-INITIAL_INCLUDE_TABLE_LENGTH, | |
458 | sizeof (InclTable)*INITIAL_INCLUDE_TABLE_LENGTH); | |
459 | } | |
460 | ||
461 | inclTable [inclIndx].name = cs->c_name; | |
462 | inclTable [inclIndx].begin = cs->c_value; | |
463 | } | |
464 | ||
465 | ||
466 | static void | |
467 | record_include_end (cs) | |
468 | struct coff_symbol *cs; | |
469 | { | |
470 | InclTable *pTbl; | |
471 | ||
472 | if (inclDepth == 0) | |
473 | fatal ("aix internal: Mismatch C_BINCL/C_EINCL pair found."); | |
474 | ||
475 | pTbl = &inclTable [inclIndx]; | |
476 | pTbl->end = cs->c_value; | |
477 | ||
478 | --inclDepth; | |
479 | ++inclIndx; | |
480 | } | |
481 | ||
482 | ||
483 | static void | |
484 | dumpIncludeChain () | |
485 | { | |
486 | int ii; | |
487 | if (inclTable && inclLength) | |
488 | for (ii=0; ii < inclIndx; ++ii) | |
489 | printf ("name: %s, begin: 0x%x, end: 0x%x\n", | |
490 | inclTable[ii].name, inclTable[ii].begin, inclTable[ii].end); | |
491 | } | |
492 | ||
493 | ||
494 | /* given the start and end addresses of a compilation unit (or a csect, at times) | |
495 | process its lines and create appropriate line vectors. */ | |
496 | ||
497 | static void | |
498 | process_linenos (start, end) | |
499 | CORE_ADDR start, end; | |
500 | { | |
501 | char *pp; | |
502 | int offset, ii; | |
503 | ||
504 | struct subfile main_subfile; /* subfile structure for the main | |
505 | compilation unit. */ | |
506 | ||
507 | /* in the main source file, any time we see a function entry, we reset | |
508 | this variable to function's absolute starting line number. All the | |
509 | following line numbers in the function are relative to this, and | |
510 | we record absolute line numbers in record_line(). */ | |
511 | ||
512 | int main_source_baseline = 0; | |
513 | ||
514 | ||
515 | unsigned *firstLine; | |
516 | CORE_ADDR addr; | |
517 | ||
518 | if (!(offset = first_fun_line_offset)) | |
519 | goto return_after_cleanup; | |
520 | ||
521 | bzero (&main_subfile, sizeof (main_subfile)); | |
522 | first_fun_line_offset = 0; | |
523 | ||
524 | if (inclIndx == 0) | |
525 | enter_line_range (&main_subfile, offset, 0, start, end, | |
526 | &main_source_baseline); | |
527 | ||
528 | /* else, there was source with line numbers in include files */ | |
529 | else { | |
530 | ||
531 | main_source_baseline = 0; | |
532 | for (ii=0; ii < inclIndx; ++ii) { | |
533 | ||
534 | struct subfile *tmpSubfile; | |
535 | ||
536 | /* if there is main file source before include file, enter it. */ | |
537 | if (offset < inclTable[ii].begin) { | |
538 | enter_line_range | |
539 | (&main_subfile, offset, inclTable[ii].begin - LINESZ, start, 0, | |
540 | &main_source_baseline); | |
541 | } | |
542 | ||
543 | /* Have a new subfile for the include file */ | |
544 | ||
545 | tmpSubfile = inclTable[ii].subfile = (struct subfile*) | |
546 | xmalloc (sizeof (struct subfile)); | |
547 | ||
548 | bzero (tmpSubfile, sizeof (struct subfile)); | |
549 | firstLine = &(inclTable[ii].funStartLine); | |
550 | ||
551 | /* enter include file's lines now. */ | |
552 | enter_line_range (tmpSubfile, inclTable[ii].begin, | |
553 | inclTable[ii].end, start, 0, firstLine); | |
554 | ||
555 | offset = inclTable[ii].end + LINESZ; | |
556 | } | |
557 | ||
558 | /* all the include files' line have been processed at this point. Now, | |
559 | enter remaining lines of the main file, if any left. */ | |
560 | if (offset < (linetab_offset + linetab_size + 1 - LINESZ)) { | |
561 | enter_line_range (&main_subfile, offset, 0, start, end, | |
562 | &main_source_baseline); | |
563 | } | |
564 | } | |
565 | ||
566 | /* Process main file's line numbers. */ | |
567 | if (main_subfile.line_vector) { | |
568 | struct linetable *lineTb, *lv; | |
569 | ||
570 | lv = main_subfile.line_vector; | |
571 | ||
572 | /* Line numbers are not necessarily ordered. xlc compilation will | |
573 | put static function to the end. */ | |
574 | ||
575 | lineTb = arrange_linetable (lv); | |
576 | if (lv == lineTb) { | |
577 | current_subfile->line_vector = (struct linetable *) | |
578 | xrealloc (lv, (sizeof (struct linetable) | |
579 | + lv->nitems * sizeof (struct linetable_entry))); | |
580 | ||
581 | } | |
582 | else { | |
583 | free (lv); | |
584 | current_subfile->line_vector = lineTb; | |
585 | } | |
586 | ||
587 | current_subfile->line_vector_length = | |
588 | current_subfile->line_vector->nitems; | |
589 | ||
590 | ||
591 | /* Now, process included files' line numbers. */ | |
592 | ||
593 | for (ii=0; ii < inclIndx; ++ii) { | |
594 | ||
595 | if ( (inclTable[ii].subfile)->line_vector) { /* Useless if!!! FIXMEmgo */ | |
596 | struct linetable *lineTb, *lv; | |
597 | ||
598 | lv = (inclTable[ii].subfile)->line_vector; | |
599 | ||
600 | /* Line numbers are not necessarily ordered. xlc compilation will | |
601 | put static function to the end. */ | |
602 | ||
603 | lineTb = arrange_linetable (lv); | |
604 | ||
605 | push_subfile (); | |
606 | ||
607 | /* For the same include file, we might want to have more than one subfile. | |
608 | This happens if we have something like: | |
609 | ||
610 | ...... | |
611 | #include "foo.h" | |
612 | ...... | |
613 | #include "foo.h" | |
614 | ...... | |
615 | ||
616 | while foo.h including code in it. (stupid but possible) | |
617 | Since start_subfile() looks at the name and uses an existing one if finds, | |
618 | we need to provide a fake name and fool it. */ | |
619 | ||
620 | /* start_subfile (inclTable[ii].name, (char*)0); */ | |
621 | start_subfile (" ?", (char*)0); | |
622 | current_subfile->name = | |
623 | obsavestring (inclTable[ii].name, strlen (inclTable[ii].name), | |
624 | ¤t_objfile->symbol_obstack); | |
625 | ||
626 | if (lv == lineTb) { | |
627 | current_subfile->line_vector = (struct linetable *) | |
628 | xrealloc (lv, (sizeof (struct linetable) | |
629 | + lv->nitems * sizeof (struct linetable_entry))); | |
630 | ||
631 | } | |
632 | else { | |
633 | free (lv); | |
634 | current_subfile->line_vector = lineTb; | |
635 | } | |
636 | ||
637 | current_subfile->line_vector_length = | |
638 | current_subfile->line_vector->nitems; | |
639 | start_subfile (pop_subfile (), (char*)0); | |
640 | } | |
641 | } | |
642 | } | |
643 | else | |
644 | /* I am not sure this logic is correct. There might be no lines in the | |
645 | main file, whereas there are some in included ones. FIXMEibm */ | |
646 | current_subfile->line_vector = NULL; | |
647 | ||
648 | return_after_cleanup: | |
649 | ||
650 | /* We don't want to keep alloc/free'ing the global include file table. */ | |
651 | inclIndx = 0; | |
652 | ||
653 | /* start with a fresh subfile structure for the next file. */ | |
654 | bzero (&main_subfile, sizeof (struct subfile)); | |
655 | } | |
656 | ||
657 | void | |
658 | aix_process_linenos () | |
659 | { | |
660 | /* process line numbers and enter them into line vector */ | |
661 | process_linenos (last_source_start_addr, cur_src_end_addr); | |
662 | } | |
663 | ||
664 | ||
e38e0312 JG |
665 | /* Enter a given range of lines into the line vector. |
666 | can be called in the following two ways: | |
818de002 PB |
667 | enter_line_range (subfile, beginoffset, endoffset, startaddr, 0, firstLine) or |
668 | enter_line_range (subfile, beginoffset, 0, startaddr, endaddr, firstLine) */ | |
e38e0312 JG |
669 | |
670 | static void | |
818de002 PB |
671 | enter_line_range (subfile, beginoffset, endoffset, startaddr, endaddr, firstLine) |
672 | struct subfile *subfile; | |
e38e0312 | 673 | unsigned beginoffset, endoffset; /* offsets to line table */ |
818de002 | 674 | CORE_ADDR startaddr, endaddr; |
e38e0312 JG |
675 | unsigned *firstLine; |
676 | { | |
677 | char *pp, *limit; | |
678 | CORE_ADDR addr; | |
818de002 PB |
679 | |
680 | /* Do Byte swapping, if needed. FIXME! */ | |
681 | #define P_LINENO(PP) (*(unsigned short*)((struct external_lineno*)(PP))->l_lnno) | |
682 | #define P_LINEADDR(PP) (*(long*)((struct external_lineno*)(PP))->l_addr.l_paddr) | |
683 | #define P_LINESYM(PP) (*(long*)((struct external_lineno*)(PP))->l_addr.l_symndx) | |
e38e0312 JG |
684 | |
685 | pp = &linetab [beginoffset - linetab_offset]; | |
686 | limit = endoffset ? &linetab [endoffset - linetab_offset] | |
687 | : &linetab [linetab_size -1]; | |
688 | ||
689 | while (pp <= limit) { | |
690 | ||
e38e0312 | 691 | /* find the address this line represents */ |
818de002 PB |
692 | addr = P_LINENO(pp) ? |
693 | P_LINEADDR(pp) : read_symbol_nvalue (symtbl, P_LINESYM(pp)); | |
e38e0312 | 694 | |
818de002 | 695 | if (addr < startaddr || (endaddr && addr > endaddr)) |
e38e0312 JG |
696 | return; |
697 | ||
818de002 PB |
698 | if (P_LINENO(pp) == 0) { |
699 | *firstLine = read_symbol_lineno (symtbl, P_LINESYM(pp)); | |
700 | record_line (subfile, 0, addr); | |
e38e0312 JG |
701 | --(*firstLine); |
702 | } | |
703 | else | |
818de002 PB |
704 | record_line (subfile, *firstLine + P_LINENO(pp), addr); |
705 | ||
706 | pp += LINESZ; | |
707 | } | |
708 | } | |
709 | ||
710 | typedef struct { | |
711 | int fsize; /* file size */ | |
712 | int fixedparms; /* number of fixed parms */ | |
713 | int floatparms; /* number of float parms */ | |
714 | unsigned int parminfo; /* parameter info. | |
715 | See /usr/include/sys/debug.h | |
716 | tbtable_ext.parminfo */ | |
717 | int framesize; /* function frame size */ | |
718 | } TracebackInfo; | |
719 | ||
720 | ||
721 | /* Given a function symbol, return its traceback information. */ | |
722 | ||
723 | TracebackInfo * | |
724 | retrieve_tracebackinfo (abfd, textsec, cs) | |
725 | bfd *abfd; | |
726 | sec_ptr textsec; | |
727 | struct coff_symbol *cs; | |
728 | { | |
729 | #define TBTABLE_BUFSIZ 2000 | |
730 | #define MIN_TBTABSIZ 50 /* minimum buffer size to hold a | |
731 | traceback table. */ | |
732 | ||
733 | static TracebackInfo tbInfo; | |
734 | struct tbtable *ptb; | |
735 | ||
736 | static char buffer [TBTABLE_BUFSIZ]; | |
737 | ||
738 | int *pinsn; | |
739 | int bytesread=0; /* total # of bytes read so far */ | |
740 | int bufferbytes; /* number of bytes in the buffer */ | |
741 | ||
742 | int functionstart = cs->c_value - textsec->vma; | |
743 | ||
744 | bzero (&tbInfo, sizeof (tbInfo)); | |
745 | ||
746 | /* keep reading blocks of data from the text section, until finding a zero | |
747 | word and a traceback table. */ | |
748 | ||
749 | while (bfd_get_section_contents (abfd, textsec, buffer, | |
750 | (file_ptr)(functionstart + bytesread), | |
751 | bufferbytes = ( | |
752 | (TBTABLE_BUFSIZ < (textsec->_raw_size - functionstart - bytesread)) ? | |
753 | TBTABLE_BUFSIZ : (textsec->_raw_size - functionstart - bytesread)))) | |
754 | { | |
755 | bytesread += bufferbytes; | |
756 | pinsn = (int*) buffer; | |
757 | ||
758 | /* if this is the first time we filled the buffer, retrieve function | |
759 | framesize info. */ | |
760 | ||
761 | if (bytesread == bufferbytes) { | |
762 | ||
763 | /* skip over unrelated instructions */ | |
764 | ||
765 | if (*pinsn == 0x7c0802a6) /* mflr r0 */ | |
766 | ++pinsn; | |
767 | if ((*pinsn & 0xfc00003e) == 0x7c000026) /* mfcr Rx */ | |
768 | ++pinsn; | |
769 | if ((*pinsn & 0xfc000000) == 0x48000000) /* bl foo, save fprs */ | |
770 | ++pinsn; | |
771 | if ((*pinsn & 0xfc1f0000) == 0xbc010000) /* stm Rx, NUM(r1) */ | |
772 | ++pinsn; | |
773 | ||
774 | do { | |
775 | int tmp = (*pinsn >> 16) & 0xffff; | |
776 | ||
777 | if (tmp == 0x9421) { /* stu r1, NUM(r1) */ | |
778 | tbInfo.framesize = 0x10000 - (*pinsn & 0xffff); | |
779 | break; | |
780 | } | |
781 | else if ((*pinsn == 0x93e1fffc) || /* st r31,-4(r1) */ | |
782 | (tmp == 0x9001)) /* st r0, NUM(r1) */ | |
783 | ; | |
784 | /* else, could not find a frame size. */ | |
785 | else | |
786 | return NULL; | |
787 | ||
788 | } while (++pinsn && *pinsn); | |
789 | ||
790 | if (!tbInfo.framesize) | |
791 | return NULL; | |
792 | } | |
793 | ||
794 | /* look for a zero word. */ | |
795 | ||
796 | while (*pinsn && (pinsn < (int*)(buffer + bufferbytes - sizeof(int)))) | |
797 | ++pinsn; | |
798 | ||
799 | if (pinsn >= (int*)(buffer + bufferbytes)) | |
800 | continue; | |
e38e0312 | 801 | |
818de002 PB |
802 | if (*pinsn == 0) { |
803 | ||
804 | /* function size is the amount of bytes we have skipped so far. */ | |
805 | tbInfo.fsize = bytesread - (buffer + bufferbytes - (char*)pinsn); | |
806 | ||
807 | ++pinsn; | |
808 | ||
809 | /* if we don't have the whole traceback table in the buffer, re-read | |
810 | the whole thing. */ | |
811 | ||
812 | if ((char*)pinsn > (buffer + bufferbytes - MIN_TBTABSIZ)) { | |
813 | ||
814 | /* In case if we are *very* close to the end of the text section | |
815 | and cannot read properly from that point on, abort by returning | |
816 | NULL. | |
817 | Handle this case more graciously -- FIXME */ | |
818 | ||
819 | if (!bfd_get_section_contents ( | |
820 | abfd, textsec, buffer, | |
821 | (file_ptr)(functionstart + | |
822 | bytesread - (buffer + bufferbytes - (char*)pinsn)),MIN_TBTABSIZ)) | |
823 | { printf ("Abnormal return!..\n"); return NULL; } | |
824 | ||
825 | ptb = (struct tbtable *)buffer; | |
826 | } | |
827 | else | |
828 | ptb = (struct tbtable *)pinsn; | |
829 | ||
830 | tbInfo.fixedparms = ptb->tb.fixedparms; | |
831 | tbInfo.floatparms = ptb->tb.floatparms; | |
832 | tbInfo.parminfo = ptb->tb_ext.parminfo; | |
833 | return &tbInfo; | |
834 | } | |
835 | } | |
836 | return NULL; | |
837 | } | |
838 | ||
839 | #if 0 | |
840 | /* Given a function symbol, return a pointer to its traceback table. */ | |
841 | ||
842 | struct tbtable * | |
843 | retrieve_traceback (abfd, textsec, cs, size) | |
844 | bfd *abfd; | |
845 | sec_ptr textsec; | |
846 | struct coff_symbol *cs; | |
847 | int *size; /* return function size */ | |
848 | { | |
849 | #define TBTABLE_BUFSIZ 2000 | |
850 | #define MIN_TBTABSIZ 50 /* minimum buffer size to hold a | |
851 | traceback table. */ | |
852 | ||
853 | static char buffer [TBTABLE_BUFSIZ]; | |
854 | ||
855 | int *pinsn; | |
856 | int bytesread=0; /* total # of bytes read so far */ | |
857 | int bufferbytes; /* number of bytes in the buffer */ | |
858 | ||
859 | int functionstart = cs->c_value - textsec->filepos + textsec->vma; | |
860 | *size = 0; | |
861 | ||
862 | /* keep reading blocks of data from the text section, until finding a zero | |
863 | word and a traceback table. */ | |
864 | ||
865 | while (bfd_get_section_contents (abfd, textsec, buffer, | |
866 | (file_ptr)(functionstart + bytesread), | |
867 | bufferbytes = ( | |
868 | (TBTABLE_BUFSIZ < (textsec->size - functionstart - bytesread)) ? | |
869 | TBTABLE_BUFSIZ : (textsec->size - functionstart - bytesread)))) | |
870 | { | |
871 | bytesread += bufferbytes; | |
872 | pinsn = (int*) buffer; | |
873 | ||
874 | /* look for a zero word. */ | |
875 | ||
876 | while (*pinsn && (pinsn < (int*)(buffer + bufferbytes - sizeof(int)))) | |
877 | ++pinsn; | |
878 | ||
879 | if (pinsn >= (int*)(buffer + bufferbytes)) | |
880 | continue; | |
881 | ||
882 | if (*pinsn == 0) { | |
883 | ||
884 | /* function size is the amount of bytes we have skipped so far. */ | |
885 | *size = bytesread - (buffer + bufferbytes - pinsn); | |
886 | ||
887 | ++pinsn; | |
888 | ||
889 | /* if we don't have the whole traceback table in the buffer, re-read | |
890 | the whole thing. */ | |
891 | ||
892 | if ((char*)pinsn > (buffer + bufferbytes - MIN_TBTABSIZ)) { | |
893 | ||
894 | /* In case if we are *very* close to the end of the text section | |
895 | and cannot read properly from that point on, abort for now. | |
896 | Handle this case more graciously -- FIXME */ | |
897 | ||
898 | if (!bfd_get_section_contents ( | |
899 | abfd, textsec, buffer, | |
900 | (file_ptr)(functionstart + | |
901 | bytesread - (buffer + bufferbytes - pinsn)),MIN_TBTABSIZ)) | |
902 | /* abort (); */ { printf ("abort!!!\n"); return NULL; } | |
903 | ||
904 | return (struct tbtable *)buffer; | |
905 | } | |
906 | else | |
907 | return (struct tbtable *)pinsn; | |
908 | } | |
e38e0312 | 909 | } |
818de002 | 910 | return NULL; |
e38e0312 | 911 | } |
818de002 PB |
912 | #endif /* 0 */ |
913 | ||
914 | ||
e38e0312 JG |
915 | |
916 | ||
917 | /* Save the vital information for use when closing off the current file. | |
918 | NAME is the file name the symbols came from, START_ADDR is the first | |
919 | text address for the file, and SIZE is the number of bytes of text. */ | |
920 | ||
921 | #define complete_symtab(name, start_addr) { \ | |
922 | last_source_file = savestring (name, strlen (name)); \ | |
818de002 | 923 | last_source_start_addr = start_addr; \ |
e38e0312 JG |
924 | } |
925 | ||
926 | ||
927 | /* Refill the symbol table input buffer | |
928 | and set the variables that control fetching entries from it. | |
929 | Reports an error if no data available. | |
930 | This function can read past the end of the symbol table | |
931 | (into the string table) but this does no harm. */ | |
932 | ||
933 | /* Reading symbol table has to be fast! Keep the followings as macros, rather | |
934 | than functions. */ | |
935 | ||
1ab3bf1b | 936 | #define RECORD_MINIMAL_SYMBOL(NAME, ADDR, TYPE, ALLOCED) \ |
e38e0312 JG |
937 | { \ |
938 | char *namestr; \ | |
939 | if (ALLOCED) \ | |
940 | namestr = (NAME) + 1; \ | |
941 | else { \ | |
1ab3bf1b | 942 | namestr = obstack_copy0 (&objfile->symbol_obstack, (NAME) + 1, strlen ((NAME)+1)); \ |
e38e0312 JG |
943 | (ALLOCED) = 1; \ |
944 | } \ | |
1ab3bf1b | 945 | prim_record_minimal_symbol (namestr, (ADDR), (TYPE)); \ |
818de002 | 946 | misc_func_recorded = 1; \ |
e38e0312 JG |
947 | } |
948 | ||
949 | ||
818de002 PB |
950 | /* A parameter template, used by ADD_PARM_TO_PENDING. */ |
951 | ||
952 | static struct symbol parmsym = { /* default parameter symbol */ | |
953 | "", /* name */ | |
954 | VAR_NAMESPACE, /* namespace */ | |
955 | LOC_ARG, /* class */ | |
956 | NULL, /* type */ | |
957 | 0, /* line number */ | |
958 | 0, /* value */ | |
959 | }; | |
960 | ||
961 | /* Add a parameter to a given pending symbol list. */ | |
962 | ||
963 | #define ADD_PARM_TO_PENDING(PARM, VALUE, PTYPE, PENDING_SYMBOLS) \ | |
964 | { \ | |
965 | PARM = (struct symbol *) \ | |
966 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol)); \ | |
967 | *(PARM) = parmsym; \ | |
968 | SYMBOL_TYPE (PARM) = PTYPE; \ | |
969 | SYMBOL_VALUE (PARM) = VALUE; \ | |
970 | add_symbol_to_list (PARM, &PENDING_SYMBOLS); \ | |
971 | } | |
972 | ||
e38e0312 JG |
973 | |
974 | /* aixcoff has static blocks marked in `.bs', `.es' pairs. They cannot be | |
975 | nested. At any given time, a symbol can only be in one static block. | |
976 | This is the base address of current static block, zero if non exists. */ | |
977 | ||
978 | static int static_block_base = 0; | |
979 | ||
980 | /* true if space for symbol name has been allocated. */ | |
981 | ||
982 | static int symname_alloced = 0; | |
983 | ||
984 | /* read the whole symbol table of a given bfd. */ | |
985 | ||
1ab3bf1b | 986 | static void |
e38e0312 JG |
987 | read_xcoff_symtab (objfile, nsyms) |
988 | struct objfile *objfile; /* Object file we're reading from */ | |
989 | int nsyms; /* # of symbols */ | |
990 | { | |
991 | bfd *abfd = objfile->obfd; | |
e38e0312 JG |
992 | char *raw_symbol; /* Pointer into raw seething symbol table */ |
993 | char *raw_auxptr; /* Pointer to first raw aux entry for sym */ | |
818de002 PB |
994 | sec_ptr textsec; /* Pointer to text section */ |
995 | TracebackInfo *ptb; /* Pointer to traceback table */ | |
996 | ||
e38e0312 JG |
997 | struct internal_syment symbol[1]; |
998 | union internal_auxent main_aux[1]; | |
999 | struct coff_symbol cs[1]; | |
1000 | CORE_ADDR file_start_addr = 0; | |
1001 | CORE_ADDR file_end_addr = 0; | |
1002 | ||
1003 | int next_file_symnum = -1; | |
1004 | int just_started = 1; | |
1005 | int depth = 0; | |
1006 | int val; | |
e38e0312 JG |
1007 | int fcn_last_line; |
1008 | int fcn_start_addr; | |
1009 | long fcn_line_offset; | |
1010 | size_t size; | |
1011 | ||
1012 | /* fcn_cs_saved is global because process_xcoff_symbol needs it. */ | |
1013 | union internal_auxent fcn_aux_saved; | |
818de002 | 1014 | struct type *fcn_type_saved = NULL; |
e38e0312 JG |
1015 | struct context_stack *new; |
1016 | ||
1017 | char *filestring = " _start_ "; /* Name of the current file. */ | |
818de002 PB |
1018 | |
1019 | char *last_csect_name; /* last seen csect's name and value */ | |
1020 | CORE_ADDR last_csect_val; | |
1021 | int misc_func_recorded; /* true if any misc. function */ | |
e38e0312 | 1022 | |
1ab3bf1b JG |
1023 | current_objfile = objfile; |
1024 | ||
e38e0312 JG |
1025 | /* Get the appropriate COFF "constants" related to the file we're handling. */ |
1026 | N_TMASK = coff_data (abfd)->local_n_tmask; | |
1027 | N_BTSHFT = coff_data (abfd)->local_n_btshft; | |
1028 | local_symesz = coff_data (abfd)->local_symesz; | |
1029 | ||
1030 | last_source_file = 0; | |
818de002 PB |
1031 | last_csect_name = 0; |
1032 | last_csect_val = 0; | |
1033 | misc_func_recorded = 0; | |
e38e0312 JG |
1034 | |
1035 | start_symtab (filestring, (char *)NULL, file_start_addr); | |
1036 | symnum = 0; | |
1037 | first_object_file_end = 0; | |
1038 | ||
1039 | /* Allocate space for the entire symbol table at once, and read it | |
1040 | all in. The bfd is already positioned at the beginning of | |
1041 | the symbol table. */ | |
1042 | ||
1043 | size = coff_data (abfd)->local_symesz * nsyms; | |
1044 | symtbl = xmalloc (size); | |
1045 | ||
1046 | val = bfd_read (symtbl, size, 1, abfd); | |
1047 | if (val != size) | |
1048 | perror_with_name ("reading symbol table"); | |
1049 | ||
1050 | raw_symbol = symtbl; | |
1051 | ||
818de002 PB |
1052 | textsec = bfd_get_section_by_name (abfd, ".text"); |
1053 | if (!textsec) { | |
1054 | printf ("Unable to locate text section!\n"); | |
1055 | } | |
1056 | ||
e38e0312 JG |
1057 | while (symnum < nsyms) { |
1058 | ||
1059 | QUIT; /* make this command interruptable. */ | |
1060 | ||
1061 | /* READ_ONE_SYMBOL (symbol, cs, symname_alloced); */ | |
1062 | /* read one symbol into `cs' structure. After processing the whole symbol | |
1063 | table, only string table will be kept in memory, symbol table and debug | |
1064 | section of aixcoff will be freed. Thus we can mark symbols with names | |
1065 | in string table as `alloced'. */ | |
1066 | { | |
1067 | int ii; | |
1068 | ||
1069 | /* Swap and align the symbol into a reasonable C structure. */ | |
1070 | bfd_coff_swap_sym_in (abfd, raw_symbol, symbol); | |
1071 | ||
1072 | cs->c_symnum = symnum; | |
1073 | cs->c_nsyms = symbol->n_numaux; | |
1074 | if (symbol->n_zeroes) { | |
1075 | symname_alloced = 0; | |
1076 | /* We must use the original, unswapped, name here so the name field | |
1077 | pointed to by cs->c_name will persist throughout xcoffread. If | |
1078 | we use the new field, it gets overwritten for each symbol. */ | |
1079 | cs->c_name = ((struct external_syment *)raw_symbol)->e.e_name; | |
1080 | } else if (symbol->n_sclass & 0x80) { | |
1081 | cs->c_name = debugsec + symbol->n_offset; | |
1082 | symname_alloced = 0; | |
1083 | } else { /* in string table */ | |
1084 | cs->c_name = strtbl + (int)symbol->n_offset; | |
1085 | symname_alloced = 1; | |
1086 | } | |
1087 | cs->c_value = symbol->n_value; | |
1088 | cs->c_sclass = symbol->n_sclass & 0xff; | |
1089 | cs->c_secnum = symbol->n_scnum; | |
1090 | cs->c_type = (unsigned)symbol->n_type; | |
1091 | ||
1092 | raw_symbol += coff_data (abfd)->local_symesz; | |
1093 | ++symnum; | |
1094 | ||
1095 | raw_auxptr = raw_symbol; /* Save addr of first aux entry */ | |
1096 | ||
1097 | /* Skip all the auxents associated with this symbol. */ | |
1098 | for (ii = symbol->n_numaux; ii; --ii ) { | |
1099 | raw_symbol += coff_data (abfd)->local_auxesz; | |
1100 | ++symnum; | |
1101 | } | |
1102 | } | |
1103 | ||
1104 | /* if symbol name starts with ".$" or "$", ignore it. */ | |
1105 | if (cs->c_name[0] == '$' || (cs->c_name[1] == '$' && cs->c_name[0] == '.')) | |
1106 | continue; | |
1107 | ||
1108 | if (cs->c_symnum == next_file_symnum && cs->c_sclass != C_FILE) { | |
1109 | if (last_source_file) | |
818de002 | 1110 | end_symtab (cur_src_end_addr, 1, 0, objfile); |
e38e0312 JG |
1111 | |
1112 | start_symtab ("_globals_", (char *)NULL, (CORE_ADDR)0); | |
1113 | cur_src_end_addr = first_object_file_end; | |
1114 | /* done with all files, everything from here on is globals */ | |
1115 | } | |
1116 | ||
1117 | /* if explicitly specified as a function, treat is as one. */ | |
1118 | if (ISFCN(cs->c_type) && cs->c_sclass != C_TPDEF) { | |
1119 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1120 | main_aux); | |
1121 | goto function_entry_point; | |
1122 | } | |
1123 | ||
1124 | if ((cs->c_sclass == C_EXT || cs->c_sclass == C_HIDEXT) && cs->c_nsyms == 1) | |
1125 | { | |
1126 | /* dealing with a symbol with a csect entry. */ | |
1127 | ||
1128 | # define CSECT(PP) ((PP)->x_csect) | |
1129 | # define CSECT_LEN(PP) (CSECT(PP).x_scnlen) | |
1130 | # define CSECT_ALIGN(PP) (SMTYP_ALIGN(CSECT(PP).x_smtyp)) | |
1131 | # define CSECT_SMTYP(PP) (SMTYP_SMTYP(CSECT(PP).x_smtyp)) | |
1132 | # define CSECT_SCLAS(PP) (CSECT(PP).x_smclas) | |
1133 | ||
1134 | /* Convert the auxent to something we can access. */ | |
1135 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1136 | main_aux); | |
1137 | ||
1138 | switch (CSECT_SMTYP (main_aux)) { | |
1139 | ||
1140 | case XTY_ER : | |
1141 | continue; /* ignore all external references. */ | |
1142 | ||
1143 | case XTY_SD : /* a section description. */ | |
1144 | { | |
1145 | switch (CSECT_SCLAS (main_aux)) { | |
1146 | ||
1147 | case XMC_PR : /* a `.text' csect. */ | |
1148 | { | |
1149 | ||
1150 | /* A program csect is seen. | |
1151 | ||
1152 | We have to allocate one symbol table for each program csect. Normally | |
1153 | gdb prefers one symtab for each compilation unit (CU). In case of AIX, one | |
1154 | CU might include more than one prog csect, and they don't have to be | |
1155 | adjacent in terms of the space they occupy in memory. Thus, one single | |
1156 | CU might get fragmented in the memory and gdb's file start and end address | |
1157 | approach does not work! */ | |
1158 | ||
818de002 PB |
1159 | if (last_csect_name) { |
1160 | ||
1161 | /* if no misc. function recorded in the last seen csect, enter | |
1162 | it as a function. This will take care of functions like | |
1163 | strcmp() compiled by xlc. */ | |
1164 | ||
1165 | if (!misc_func_recorded) { | |
1166 | int alloced = 0; | |
1167 | RECORD_MINIMAL_SYMBOL (last_csect_name, last_csect_val, | |
1168 | mst_text, alloced); | |
1169 | } | |
1170 | ||
1171 | ||
e38e0312 JG |
1172 | complete_symtab (filestring, file_start_addr); |
1173 | cur_src_end_addr = file_end_addr; | |
818de002 | 1174 | end_symtab (file_end_addr, 1, 0, objfile); |
e38e0312 JG |
1175 | start_symtab ((char *)NULL, (char *)NULL, (CORE_ADDR)0); |
1176 | } | |
1177 | ||
1178 | /* If this is the very first csect seen, basically `__start'. */ | |
1179 | if (just_started) { | |
1180 | first_object_file_end = cs->c_value + CSECT_LEN (main_aux); | |
1181 | just_started = 0; | |
1182 | } | |
1183 | ||
1184 | file_start_addr = cs->c_value; | |
1185 | file_end_addr = cs->c_value + CSECT_LEN (main_aux); | |
1186 | ||
1187 | if (cs->c_name && cs->c_name[0] == '.') { | |
818de002 PB |
1188 | last_csect_name = cs->c_name; |
1189 | last_csect_val = cs->c_value; | |
e38e0312 JG |
1190 | } |
1191 | } | |
818de002 | 1192 | misc_func_recorded = 0; |
e38e0312 JG |
1193 | continue; |
1194 | ||
1195 | case XMC_RW : | |
1196 | break; | |
1197 | ||
1198 | /* If the section is not a data description, ignore it. Note that | |
1199 | uninitialized data will show up as XTY_CM/XMC_RW pair. */ | |
1200 | ||
1201 | case XMC_TC0: | |
1202 | #ifdef XCOFF_ADD_TOC_TO_LOADINFO | |
1203 | XCOFF_ADD_TOC_TO_LOADINFO (cs->c_value); | |
1204 | #endif | |
1205 | /* fall down to default case. */ | |
1206 | ||
1207 | case XMC_TC : /* ignore toc entries */ | |
1208 | default : /* any other XMC_XXX */ | |
1209 | continue; | |
1210 | } | |
1211 | } | |
1212 | break; /* switch CSECT_SCLAS() */ | |
1213 | ||
1214 | case XTY_LD : | |
1215 | ||
1216 | /* a function entry point. */ | |
1217 | if (CSECT_SCLAS (main_aux) == XMC_PR) { | |
1218 | ||
1219 | function_entry_point: | |
818de002 PB |
1220 | RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_text, |
1221 | symname_alloced); | |
e38e0312 JG |
1222 | |
1223 | fcn_line_offset = main_aux->x_sym.x_fcnary.x_fcn.x_lnnoptr; | |
1224 | fcn_start_addr = cs->c_value; | |
1225 | ||
1226 | /* save the function header info, which will be used | |
1227 | when `.bf' is seen. */ | |
1228 | fcn_cs_saved = *cs; | |
1229 | fcn_aux_saved = *main_aux; | |
818de002 PB |
1230 | |
1231 | ||
1232 | ptb = NULL; | |
1233 | ||
1234 | /* If function has two auxent, then debugging information is | |
1235 | already available for it. Process traceback table for | |
1236 | functions with only one auxent. */ | |
1237 | ||
1238 | if (cs->c_nsyms == 1) | |
1239 | ptb = retrieve_tracebackinfo (abfd, textsec, cs); | |
1240 | ||
1241 | else if (cs->c_nsyms != 2) | |
1242 | abort (); | |
1243 | ||
1244 | /* If there is traceback info, create and add parameters for it. */ | |
1245 | ||
1246 | if (ptb && (ptb->fixedparms || ptb->floatparms)) { | |
1247 | ||
1248 | int parmcnt = ptb->fixedparms + ptb->floatparms; | |
1249 | char *parmcode = (char*) &ptb->parminfo; | |
1250 | int parmvalue = ptb->framesize + 0x18; /* sizeof(LINK AREA) == 0x18 */ | |
1251 | unsigned int ii, mask; | |
1252 | ||
1253 | for (ii=0, mask = 0x80000000; ii <parmcnt; ++ii) { | |
1254 | struct symbol *parm; | |
1255 | ||
1256 | if (ptb->parminfo & mask) { /* float or double */ | |
1257 | mask = mask >> 1; | |
1258 | if (ptb->parminfo & mask) { /* double parm */ | |
1259 | ADD_PARM_TO_PENDING | |
1260 | (parm, parmvalue, builtin_type_double, local_symbols); | |
1261 | parmvalue += sizeof (double); | |
1262 | } | |
1263 | else { /* float parm */ | |
1264 | ADD_PARM_TO_PENDING | |
1265 | (parm, parmvalue, builtin_type_float, local_symbols); | |
1266 | parmvalue += sizeof (float); | |
1267 | } | |
1268 | } | |
1269 | else { /* fixed parm */ | |
1270 | ADD_PARM_TO_PENDING | |
1271 | (parm, parmvalue, builtin_type_int, local_symbols); | |
1272 | parmvalue += sizeof (int); | |
1273 | } | |
1274 | mask = mask >> 1; | |
1275 | } | |
1276 | ||
1277 | /* Fake this as a function. Needed in process_xcoff_symbol() */ | |
1278 | cs->c_type = 32; | |
1279 | ||
1280 | finish_block(process_xcoff_symbol (cs, objfile), &local_symbols, | |
1281 | pending_blocks, cs->c_value, | |
1282 | cs->c_value + ptb->fsize, objfile); | |
1283 | } | |
e38e0312 JG |
1284 | continue; |
1285 | } | |
818de002 | 1286 | /* shared library function trampoline code entry point. */ |
e38e0312 | 1287 | else if (CSECT_SCLAS (main_aux) == XMC_GL) { |
818de002 PB |
1288 | RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_text, |
1289 | symname_alloced); | |
e38e0312 JG |
1290 | continue; |
1291 | } | |
1292 | break; | |
1293 | ||
1294 | default : /* all other XTY_XXXs */ | |
1295 | break; | |
818de002 | 1296 | } /* switch CSECT_SMTYP() */ } |
e38e0312 JG |
1297 | |
1298 | switch (cs->c_sclass) { | |
1299 | ||
1300 | case C_FILE: | |
1301 | ||
818de002 PB |
1302 | /* see if the last csect needs to be recorded. */ |
1303 | ||
1304 | if (last_csect_name && !misc_func_recorded) { | |
1305 | ||
1306 | /* if no misc. function recorded in the last seen csect, enter | |
1307 | it as a function. This will take care of functions like | |
1308 | strcmp() compiled by xlc. */ | |
1309 | ||
1310 | int alloced = 0; | |
1311 | RECORD_MINIMAL_SYMBOL (last_csect_name, last_csect_val, | |
1312 | mst_text, alloced); | |
1313 | } | |
1314 | ||
e38e0312 JG |
1315 | /* c_value field contains symnum of next .file entry in table |
1316 | or symnum of first global after last .file. */ | |
1317 | ||
1318 | next_file_symnum = cs->c_value; | |
1319 | ||
1320 | /* complete symbol table for last object file containing | |
1321 | debugging information. */ | |
1322 | ||
1323 | /* Whether or not there was a csect in the previous file, we have | |
1324 | to call `end_symtab' and `start_symtab' to reset type_vector, | |
1325 | line_vector, etc. structures. */ | |
818de002 | 1326 | |
e38e0312 JG |
1327 | complete_symtab (filestring, file_start_addr); |
1328 | cur_src_end_addr = file_end_addr; | |
818de002 | 1329 | end_symtab (file_end_addr, 1, 0, objfile); |
e38e0312 | 1330 | start_symtab (cs->c_name, (char *)NULL, (CORE_ADDR)0); |
818de002 | 1331 | last_csect_name = 0; |
e38e0312 JG |
1332 | |
1333 | /* reset file start and end addresses. A compilation unit with no text | |
1334 | (only data) should have zero file boundaries. */ | |
1335 | file_start_addr = file_end_addr = 0; | |
1336 | ||
1337 | filestring = cs->c_name; | |
1338 | break; | |
1339 | ||
1340 | ||
818de002 PB |
1341 | case C_FUN: |
1342 | ||
1343 | /* For a function stab, just save its type in `fcn_type_saved', and leave | |
1344 | it for the `.bf' processing. */ | |
1345 | { | |
1346 | char *pp = (char*) index (cs->c_name, ':'); | |
1347 | ||
1348 | if (!pp || ( *(pp+1) != 'F' && *(pp+1) != 'f')) | |
1349 | fatal ("Unrecognized stab"); | |
1350 | pp += 2; | |
1351 | ||
1352 | if (fcn_type_saved) | |
1353 | fatal ("Unprocessed function type"); | |
1354 | ||
1355 | fcn_type_saved = lookup_function_type (read_type (&pp, objfile)); | |
1356 | } | |
1357 | break; | |
1358 | ||
1359 | ||
e38e0312 JG |
1360 | case C_FCN: |
1361 | if (strcmp (cs->c_name, ".bf") == 0) { | |
1362 | ||
1363 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1364 | main_aux); | |
1365 | ||
1366 | within_function = 1; | |
1367 | ||
e38e0312 JG |
1368 | /* Linenos are now processed on a file-by-file, not fn-by-fn, basis. |
1369 | Metin did it, I'm not sure why. FIXME. -- gnu@cygnus.com */ | |
818de002 PB |
1370 | |
1371 | /* Two reasons: | |
1372 | ||
1373 | 1) xlc (IBM's native c compiler) postpones static function code | |
1374 | emission to the end of a compilation unit. This way it can | |
1375 | determine if those functions (statics) are needed or not, and | |
1376 | can do some garbage collection (I think). This makes line | |
1377 | numbers and corresponding addresses unordered, and we end up | |
1378 | with a line table like: | |
1379 | ||
1380 | ||
1381 | lineno addr | |
1382 | foo() 10 0x100 | |
1383 | 20 0x200 | |
1384 | 30 0x300 | |
1385 | ||
1386 | foo3() 70 0x400 | |
1387 | 80 0x500 | |
1388 | 90 0x600 | |
1389 | ||
1390 | static foo2() | |
1391 | 40 0x700 | |
1392 | 50 0x800 | |
1393 | 60 0x900 | |
1394 | ||
1395 | and that breaks gdb's binary search on line numbers, if the | |
1396 | above table is not sorted on line numbers. And that sort | |
1397 | should be on function based, since gcc can emit line numbers | |
1398 | like: | |
1399 | ||
1400 | 10 0x100 - for the init/test part of a for stmt. | |
1401 | 20 0x200 | |
1402 | 30 0x300 | |
1403 | 10 0x400 - for the increment part of a for stmt. | |
1404 | ||
1405 | arrange_linenos() will do this sorting. | |
1406 | ||
1407 | ||
1408 | 2) aix symbol table might look like: | |
1409 | ||
1410 | c_file // beginning of a new file | |
1411 | .bi // beginning of include file | |
1412 | .ei // end of include file | |
1413 | .bi | |
1414 | .ei | |
1415 | ||
1416 | basically, .bi/.ei pairs do not necessarily encapsulate | |
1417 | their scope. They need to be recorded, and processed later | |
1418 | on when we come the end of the compilation unit. | |
1419 | Include table (inclTable) and process_linenos() handle | |
1420 | that. | |
1421 | */ | |
1422 | mark_first_line (fcn_line_offset, cs->c_symnum); | |
e38e0312 JG |
1423 | |
1424 | new = push_context (0, fcn_start_addr); | |
1ab3bf1b | 1425 | new->name = process_xcoff_symbol (&fcn_cs_saved, objfile); |
818de002 PB |
1426 | |
1427 | /* Between a function symbol and `.bf', there always will be a function | |
1428 | stab. We save function type when processing that stab. */ | |
1429 | ||
2b5a8d9c PB |
1430 | if (fcn_type_saved == NULL) { |
1431 | printf ("Unknown function type: symbol 0x%x\n", cs->c_symnum); | |
1432 | SYMBOL_TYPE (new->name) = lookup_function_type (builtin_type_int); | |
1433 | } | |
1434 | else { | |
1435 | SYMBOL_TYPE (new->name) = fcn_type_saved; | |
1436 | fcn_type_saved = NULL; | |
1437 | } | |
e38e0312 JG |
1438 | } |
1439 | else if (strcmp (cs->c_name, ".ef") == 0) { | |
1440 | ||
1441 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1442 | main_aux); | |
1443 | ||
1444 | /* the value of .ef is the address of epilogue code; | |
1445 | not useful for gdb */ | |
1446 | /* { main_aux.x_sym.x_misc.x_lnsz.x_lnno | |
1447 | contains number of lines to '}' */ | |
1448 | ||
1449 | fcn_last_line = main_aux->x_sym.x_misc.x_lnsz.x_lnno; | |
e38e0312 JG |
1450 | new = pop_context (); |
1451 | if (context_stack_depth != 0) | |
1452 | error ("invalid symbol data; .bf/.ef/.bb/.eb symbol mismatch, at symbol %d.", | |
1453 | symnum); | |
1454 | ||
1455 | finish_block (new->name, &local_symbols, new->old_blocks, | |
1456 | new->start_addr, | |
1457 | fcn_cs_saved.c_value + | |
1ab3bf1b | 1458 | fcn_aux_saved.x_sym.x_misc.x_fsize, objfile); |
e38e0312 JG |
1459 | within_function = 0; |
1460 | } | |
1461 | break; | |
1462 | ||
1463 | case C_BSTAT : /* begin static block */ | |
1464 | static_block_base = read_symbol_nvalue (symtbl, cs->c_value); | |
1465 | break; | |
1466 | ||
1467 | case C_ESTAT : /* end of static block */ | |
1468 | static_block_base = 0; | |
1469 | break; | |
1470 | ||
1471 | case C_ARG : /* These are not implemented. */ | |
1472 | case C_REGPARM : | |
1473 | case C_TPDEF : | |
1474 | case C_STRTAG : | |
1475 | case C_UNTAG : | |
1476 | case C_ENTAG : | |
1477 | printf ("ERROR: Unimplemented storage class: %d.\n", cs->c_sclass); | |
1478 | break; | |
1479 | ||
1480 | case C_HIDEXT : /* ignore these.. */ | |
1481 | case C_LABEL : | |
1482 | case C_NULL : | |
1483 | break; | |
1484 | ||
1485 | case C_BINCL : /* beginning of include file */ | |
818de002 PB |
1486 | |
1487 | /* In xlc output, C_BINCL/C_EINCL pair doesn't show up in sorted | |
1488 | order. Thus, when wee see them, we might not know enough info | |
1489 | to process them. Thus, we'll be saving them into a table | |
1490 | (inclTable) and postpone their processing. */ | |
1491 | ||
1492 | record_include_begin (cs); | |
e38e0312 JG |
1493 | break; |
1494 | ||
1495 | case C_EINCL : /* end of include file */ | |
818de002 PB |
1496 | /* see the comment after case C_BINCL. */ |
1497 | record_include_end (cs); | |
e38e0312 JG |
1498 | break; |
1499 | ||
1500 | case C_BLOCK : | |
1501 | if (strcmp (cs->c_name, ".bb") == 0) { | |
1502 | depth++; | |
1503 | new = push_context (depth, cs->c_value); | |
1504 | } | |
1505 | else if (strcmp (cs->c_name, ".eb") == 0) { | |
1506 | new = pop_context (); | |
1507 | if (depth != new->depth) | |
1508 | error ("Invalid symbol data: .bb/.eb symbol mismatch at symbol %d.", | |
1509 | symnum); | |
1510 | ||
1511 | depth--; | |
1512 | if (local_symbols && context_stack_depth > 0) { | |
1513 | /* Make a block for the local symbols within. */ | |
1514 | finish_block (new->name, &local_symbols, new->old_blocks, | |
1ab3bf1b | 1515 | new->start_addr, cs->c_value, objfile); |
e38e0312 JG |
1516 | } |
1517 | local_symbols = new->locals; | |
1518 | } | |
1519 | break; | |
1520 | ||
1521 | default : | |
1ab3bf1b | 1522 | (void) process_xcoff_symbol (cs, objfile); |
e38e0312 JG |
1523 | break; |
1524 | } | |
1525 | ||
1526 | } /* while */ | |
1527 | ||
1528 | if (last_source_file) | |
818de002 | 1529 | end_symtab (cur_src_end_addr, 1, 0, objfile); |
e38e0312 JG |
1530 | |
1531 | free (symtbl); | |
1ab3bf1b | 1532 | current_objfile = NULL; |
e38e0312 JG |
1533 | } |
1534 | ||
1535 | #define SYMBOL_DUP(SYMBOL1, SYMBOL2) \ | |
1536 | (SYMBOL2) = (struct symbol *) \ | |
1ab3bf1b | 1537 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol)); \ |
e38e0312 JG |
1538 | *(SYMBOL2) = *(SYMBOL1); |
1539 | ||
1540 | ||
1541 | #define SYMNAME_ALLOC(NAME, ALLOCED) \ | |
1ab3bf1b | 1542 | (ALLOCED) ? (NAME) : obstack_copy0 (&objfile->symbol_obstack, (NAME), strlen (NAME)); |
e38e0312 JG |
1543 | |
1544 | ||
e38e0312 JG |
1545 | /* process one xcoff symbol. */ |
1546 | ||
1547 | static struct symbol * | |
1ab3bf1b | 1548 | process_xcoff_symbol (cs, objfile) |
e38e0312 | 1549 | register struct coff_symbol *cs; |
1ab3bf1b | 1550 | struct objfile *objfile; |
e38e0312 JG |
1551 | { |
1552 | struct symbol onesymbol; | |
1553 | register struct symbol *sym = &onesymbol; | |
1554 | struct symbol *sym2 = NULL; | |
1555 | struct type *ttype; | |
1556 | char *name, *pp, *qq; | |
818de002 | 1557 | int struct_and_type_combined; |
e38e0312 JG |
1558 | |
1559 | name = cs->c_name; | |
1560 | if (name[0] == '.') | |
1561 | ++name; | |
1562 | ||
1563 | bzero (sym, sizeof (struct symbol)); | |
1564 | ||
1565 | /* default assumptions */ | |
1566 | SYMBOL_VALUE (sym) = cs->c_value; | |
1567 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1568 | ||
1569 | if (ISFCN (cs->c_type)) { | |
1570 | ||
1571 | /* At this point, we don't know the type of the function and assume it | |
1572 | is int. This will be patched with the type from its stab entry later | |
1573 | on in patch_block_stabs () */ | |
1574 | ||
1575 | SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced); | |
818de002 | 1576 | SYMBOL_TYPE (sym) = lookup_function_type (lookup_fundamental_type (objfile, FT_INTEGER)); |
e38e0312 JG |
1577 | |
1578 | SYMBOL_CLASS (sym) = LOC_BLOCK; | |
1579 | SYMBOL_DUP (sym, sym2); | |
1580 | ||
1581 | if (cs->c_sclass == C_EXT) | |
1582 | add_symbol_to_list (sym2, &global_symbols); | |
1583 | else if (cs->c_sclass == C_HIDEXT || cs->c_sclass == C_STAT) | |
1584 | add_symbol_to_list (sym2, &file_symbols); | |
1585 | } | |
1586 | ||
1587 | else { | |
1588 | ||
1589 | /* in case we can't figure out the type, default is `int'. */ | |
818de002 | 1590 | SYMBOL_TYPE (sym) = lookup_fundamental_type (objfile, FT_INTEGER); |
e38e0312 JG |
1591 | |
1592 | switch (cs->c_sclass) | |
1593 | { | |
818de002 | 1594 | #if 0 |
e38e0312 JG |
1595 | case C_FUN: |
1596 | if (fcn_cs_saved.c_sclass == C_EXT) | |
1597 | add_stab_to_list (name, &global_stabs); | |
1598 | else | |
1599 | add_stab_to_list (name, &file_stabs); | |
1600 | break; | |
818de002 | 1601 | #endif |
e38e0312 JG |
1602 | |
1603 | case C_DECL: /* a type decleration?? */ | |
1ab3bf1b | 1604 | qq = (char*) strchr (name, ':'); |
2b5a8d9c | 1605 | /* skip if there is no ':' or a nameless construct */ |
e38e0312 JG |
1606 | if (!qq) /* skip if there is no ':' */ |
1607 | return NULL; | |
1608 | ||
818de002 PB |
1609 | struct_and_type_combined = (qq[1] == 'T' && qq[2] == 't'); |
1610 | pp = qq + (struct_and_type_combined ? 3 : 2); | |
2b5a8d9c PB |
1611 | |
1612 | ||
1613 | /* To handle GNU C++ typename abbreviation, we need to be able to fill | |
1614 | in a type's name as soon as space for that type is allocated. */ | |
1615 | ||
1616 | if (struct_and_type_combined && name != qq) { | |
1617 | ||
1618 | int typenums[2]; | |
1619 | struct type *tmp_type; | |
1620 | char *tmp_pp = pp; | |
1621 | ||
1622 | read_type_number (&tmp_pp, typenums); | |
1623 | tmp_type = dbx_alloc_type (typenums); | |
1624 | ||
1625 | if (tmp_type && !TYPE_NAME (tmp_type)) | |
1626 | TYPE_NAME (tmp_type) = SYMBOL_NAME (sym) = | |
1627 | obsavestring (name, qq-name); | |
1628 | } | |
1ab3bf1b | 1629 | ttype = SYMBOL_TYPE (sym) = read_type (&pp, objfile); |
e38e0312 JG |
1630 | |
1631 | /* read_type() will return null if type (or tag) definition was | |
1632 | unnnecessarily duplicated. Also, if the symbol doesn't have a name, | |
1633 | there is no need to keep it in symbol table. */ | |
2b5a8d9c | 1634 | /* The above argument no longer valid. read_type() never returns NULL. */ |
e38e0312 JG |
1635 | |
1636 | if (!ttype || name == qq) | |
1637 | return NULL; | |
1638 | ||
1639 | if (qq[1] == 'T') | |
1640 | SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE; | |
1641 | else if (qq[1] == 't') | |
1642 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1643 | else { | |
1644 | printf ("ERROR: Unrecognized stab string.\n"); | |
1645 | return NULL; | |
1646 | } | |
1647 | ||
1648 | SYMBOL_CLASS (sym) = LOC_TYPEDEF; | |
2b5a8d9c PB |
1649 | if (!SYMBOL_NAME (sym)) |
1650 | SYMBOL_NAME (sym) = | |
1651 | obsavestring (name, qq-name, &objfile->symbol_obstack); | |
e38e0312 | 1652 | |
818de002 | 1653 | if (struct_and_type_combined) |
2b5a8d9c | 1654 | ; |
818de002 | 1655 | else if (SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE) |
e38e0312 JG |
1656 | TYPE_NAME (ttype) = concat ( |
1657 | TYPE_CODE (ttype) == TYPE_CODE_UNION ? "union " : | |
1658 | TYPE_CODE (ttype) == TYPE_CODE_STRUCT? "struct " : "enum ", | |
58ae87f6 | 1659 | SYMBOL_NAME (sym), NULL); |
e38e0312 | 1660 | |
e38e0312 JG |
1661 | SYMBOL_DUP (sym, sym2); |
1662 | add_symbol_to_list | |
1663 | (sym2, within_function ? &local_symbols : &file_symbols); | |
818de002 PB |
1664 | |
1665 | /* For a combination of struct and type, add one more symbol for the type. */ | |
1666 | if (struct_and_type_combined) { | |
1667 | SYMBOL_DUP (sym, sym2); | |
1668 | SYMBOL_NAMESPACE (sym2) = VAR_NAMESPACE; | |
1669 | add_symbol_to_list | |
1670 | (sym2, within_function ? &local_symbols : &file_symbols); | |
1671 | } | |
e38e0312 JG |
1672 | break; |
1673 | ||
1674 | case C_GSYM: | |
1675 | add_stab_to_list (name, &global_stabs); | |
1676 | break; | |
1677 | ||
1678 | case C_PSYM: | |
818de002 | 1679 | case C_RPSYM: |
1ab3bf1b | 1680 | if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL) |
e38e0312 | 1681 | return NULL; |
1ab3bf1b | 1682 | SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack); |
818de002 | 1683 | SYMBOL_CLASS (sym) = (cs->c_sclass == C_PSYM) ? LOC_ARG : LOC_REGPARM; |
e38e0312 | 1684 | pp += 2; |
1ab3bf1b | 1685 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); |
e38e0312 JG |
1686 | SYMBOL_DUP (sym, sym2); |
1687 | add_symbol_to_list (sym2, &local_symbols); | |
1688 | break; | |
1689 | ||
1690 | case C_STSYM: | |
1ab3bf1b | 1691 | if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL) |
e38e0312 | 1692 | return NULL; |
1ab3bf1b | 1693 | SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack); |
e38e0312 JG |
1694 | SYMBOL_CLASS (sym) = LOC_STATIC; |
1695 | SYMBOL_VALUE (sym) += static_block_base; | |
1696 | pp += 2; | |
1ab3bf1b | 1697 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); |
e38e0312 JG |
1698 | SYMBOL_DUP (sym, sym2); |
1699 | add_symbol_to_list | |
1700 | (sym2, within_function ? &local_symbols : &file_symbols); | |
1701 | break; | |
1702 | ||
1703 | case C_LSYM: | |
1ab3bf1b | 1704 | if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL) |
e38e0312 | 1705 | return NULL; |
1ab3bf1b | 1706 | SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack); |
e38e0312 JG |
1707 | SYMBOL_CLASS (sym) = LOC_LOCAL; |
1708 | pp += 1; | |
1ab3bf1b | 1709 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); |
e38e0312 JG |
1710 | SYMBOL_DUP (sym, sym2); |
1711 | add_symbol_to_list (sym2, &local_symbols); | |
1712 | break; | |
1713 | ||
1714 | case C_AUTO: | |
1715 | SYMBOL_CLASS (sym) = LOC_LOCAL; | |
1716 | SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced); | |
1717 | SYMBOL_DUP (sym, sym2); | |
1718 | add_symbol_to_list (sym2, &local_symbols); | |
1719 | break; | |
1720 | ||
1721 | case C_EXT: | |
1722 | SYMBOL_CLASS (sym) = LOC_STATIC; | |
1723 | SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced); | |
1724 | SYMBOL_DUP (sym, sym2); | |
1725 | add_symbol_to_list (sym2, &global_symbols); | |
1726 | break; | |
1727 | ||
1728 | case C_STAT: | |
1729 | SYMBOL_CLASS (sym) = LOC_STATIC; | |
1730 | SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced); | |
1731 | SYMBOL_DUP (sym, sym2); | |
1732 | add_symbol_to_list | |
1733 | (sym2, within_function ? &local_symbols : &file_symbols); | |
1734 | break; | |
1735 | ||
1736 | case C_REG: | |
1737 | printf ("ERROR! C_REG is not fully implemented!\n"); | |
1738 | SYMBOL_CLASS (sym) = LOC_REGISTER; | |
1739 | SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced); | |
1740 | SYMBOL_DUP (sym, sym2); | |
1741 | add_symbol_to_list (sym2, &local_symbols); | |
1742 | break; | |
1743 | ||
1744 | case C_RSYM: | |
1ab3bf1b | 1745 | pp = (char*) strchr (name, ':'); |
e38e0312 JG |
1746 | SYMBOL_CLASS (sym) = LOC_REGISTER; |
1747 | SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (cs->c_value); | |
1748 | if (pp) { | |
1ab3bf1b | 1749 | SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack); |
e38e0312 JG |
1750 | pp += 2; |
1751 | if (*pp) | |
1ab3bf1b | 1752 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); |
e38e0312 JG |
1753 | } |
1754 | else | |
1755 | /* else this is not a stab entry, suppose the type is either | |
1756 | `int' or `float', depending on the register class. */ | |
1757 | ||
1ab3bf1b | 1758 | SYMBOL_TYPE (sym) = (SYMBOL_VALUE (sym) < 32) |
818de002 PB |
1759 | ? lookup_fundamental_type (objfile, FT_INTEGER) |
1760 | : lookup_fundamental_type (objfile, FT_FLOAT); | |
e38e0312 JG |
1761 | |
1762 | SYMBOL_DUP (sym, sym2); | |
1763 | add_symbol_to_list (sym2, &local_symbols); | |
1764 | break; | |
1765 | ||
1766 | default : | |
1767 | printf ("ERROR: Unexpected storage class: %d.\n", cs->c_sclass); | |
1768 | return NULL; | |
1769 | } | |
1770 | } | |
1771 | return sym2; | |
1772 | } | |
1773 | ||
1774 | ||
1775 | static int | |
1776 | read_symbol_nvalue (symtable, symno) | |
1777 | char *symtable; | |
1778 | int symno; | |
1779 | { | |
1780 | struct internal_syment symbol[1]; | |
1781 | ||
1782 | bfd_coff_swap_sym_in (symfile_bfd, symtable + (symno*local_symesz), symbol); | |
1783 | return symbol->n_value; | |
1784 | } | |
1785 | ||
1786 | ||
1787 | static int | |
1788 | read_symbol_lineno (symtable, symno) | |
1789 | char *symtable; | |
1790 | int symno; | |
1791 | { | |
1792 | struct internal_syment symbol[1]; | |
1793 | union internal_auxent main_aux[1]; | |
1794 | ||
1795 | int ii; | |
1796 | ||
1797 | for (ii = 0; ii < 50; ii++) { | |
1798 | bfd_coff_swap_sym_in (symfile_bfd, | |
1799 | symtable + (symno*local_symesz), symbol); | |
1800 | if (symbol->n_sclass == C_FCN && 0 == strcmp (symbol->n_name, ".bf")) | |
1801 | goto gotit; | |
6b5b330b | 1802 | symno += symbol->n_numaux+1; |
e38e0312 JG |
1803 | } |
1804 | ||
1805 | printf ("GDB Error: `.bf' not found.\n"); | |
1806 | return 0; | |
1807 | ||
1808 | gotit: | |
1809 | /* take aux entry and return its lineno */ | |
1810 | symno++; | |
1811 | bfd_coff_swap_aux_in (symfile_bfd, symtable+(symno*local_symesz), | |
1812 | symbol->n_type, symbol->n_sclass, main_aux); | |
1813 | ||
1814 | return main_aux->x_sym.x_misc.x_lnsz.x_lnno; | |
1815 | } | |
1816 | ||
1817 | /* Support for line number handling */ | |
1818 | ||
1819 | /* This function is called for every section; it finds the outer limits | |
1820 | * of the line table (minimum and maximum file offset) so that the | |
1821 | * mainline code can read the whole thing for efficiency. | |
1822 | */ | |
1823 | static void | |
1824 | find_linenos(abfd, asect, vpinfo) | |
1825 | bfd *abfd; | |
1826 | sec_ptr asect; | |
1ab3bf1b | 1827 | PTR vpinfo; |
e38e0312 JG |
1828 | { |
1829 | struct coff_symfile_info *info; | |
1830 | int size, count; | |
1831 | file_ptr offset, maxoff; | |
1832 | ||
1833 | count = asect->lineno_count; | |
1834 | ||
818de002 | 1835 | if (strcmp (asect->name, ".text") || count == 0) |
e38e0312 JG |
1836 | return; |
1837 | ||
1838 | size = count * coff_data (symfile_bfd)->local_linesz; | |
1839 | info = (struct coff_symfile_info *)vpinfo; | |
1840 | offset = asect->line_filepos; | |
1841 | maxoff = offset + size; | |
1842 | ||
1843 | if (offset < info->min_lineno_offset || info->min_lineno_offset == 0) | |
1844 | info->min_lineno_offset = offset; | |
1845 | ||
1846 | if (maxoff > info->max_lineno_offset) | |
1847 | info->max_lineno_offset = maxoff; | |
1848 | } | |
1849 | ||
1850 | ||
1851 | /* Read in all the line numbers for fast lookups later. Leave them in | |
1852 | external (unswapped) format in memory; we'll swap them as we enter | |
1853 | them into GDB's data structures. */ | |
1854 | ||
1855 | static int | |
1856 | init_lineno (abfd, offset, size) | |
1857 | bfd *abfd; | |
1858 | long offset; | |
1859 | int size; | |
1860 | { | |
1861 | int val; | |
1862 | ||
1863 | if (bfd_seek(abfd, offset, 0) < 0) | |
1864 | return -1; | |
1865 | ||
1866 | linetab = (char *) xmalloc(size); | |
1867 | ||
1868 | val = bfd_read(linetab, 1, size, abfd); | |
1869 | if (val != size) | |
1870 | return -1; | |
1871 | ||
1872 | linetab_offset = offset; | |
1873 | linetab_size = size; | |
1ab3bf1b | 1874 | make_cleanup (free, linetab); /* Be sure it gets de-allocated. */ |
e38e0312 JG |
1875 | return 0; |
1876 | } | |
93fe4e33 | 1877 | \f |
e38e0312 JG |
1878 | /* dbx allows the text of a symbol name to be continued into the |
1879 | next symbol name! When such a continuation is encountered | |
1880 | (a \ at the end of the text of a name) | |
1881 | call this function to get the continuation. */ | |
1882 | /* So far, I haven't seen this happenning xlc output. I doubt we'll need this | |
1883 | for aixcoff. */ | |
1884 | ||
1d4c28c5 | 1885 | #undef next_symbol_text |
e38e0312 JG |
1886 | #define next_symbol_text() \ |
1887 | printf ("Gdb Error: symbol names on multiple lines not implemented.\n") | |
1888 | ||
1889 | ||
1890 | /* xlc/dbx combination uses a set of builtin types, starting from -1. return | |
1891 | the proper type node fora given builtin type #. */ | |
1892 | ||
1893 | struct type * | |
1894 | builtin_type (pp) | |
1895 | char **pp; | |
1896 | { | |
1897 | int typenums[2]; | |
1898 | ||
1899 | if (**pp != '-') { | |
1900 | printf ("ERROR!, unknown built-in type!\n"); | |
1901 | return NULL; | |
1902 | } | |
1903 | *pp += 1; | |
1904 | read_type_number (pp, typenums); | |
1905 | ||
1906 | /* default types are defined in dbxstclass.h. */ | |
1907 | switch ( typenums[1] ) { | |
1908 | case 1: | |
1ab3bf1b | 1909 | return lookup_fundamental_type (current_objfile, FT_INTEGER); |
e38e0312 | 1910 | case 2: |
1ab3bf1b | 1911 | return lookup_fundamental_type (current_objfile, FT_CHAR); |
e38e0312 | 1912 | case 3: |
1ab3bf1b | 1913 | return lookup_fundamental_type (current_objfile, FT_SHORT); |
e38e0312 | 1914 | case 4: |
1ab3bf1b | 1915 | return lookup_fundamental_type (current_objfile, FT_LONG); |
e38e0312 | 1916 | case 5: |
1ab3bf1b | 1917 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_CHAR); |
e38e0312 | 1918 | case 6: |
1ab3bf1b | 1919 | return lookup_fundamental_type (current_objfile, FT_SIGNED_CHAR); |
e38e0312 | 1920 | case 7: |
1ab3bf1b | 1921 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_SHORT); |
e38e0312 | 1922 | case 8: |
1ab3bf1b | 1923 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_INTEGER); |
e38e0312 | 1924 | case 9: |
1ab3bf1b | 1925 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_INTEGER); |
e38e0312 | 1926 | case 10: |
1ab3bf1b | 1927 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_LONG); |
e38e0312 | 1928 | case 11: |
1ab3bf1b | 1929 | return lookup_fundamental_type (current_objfile, FT_VOID); |
e38e0312 | 1930 | case 12: |
1ab3bf1b | 1931 | return lookup_fundamental_type (current_objfile, FT_FLOAT); |
e38e0312 | 1932 | case 13: |
1ab3bf1b | 1933 | return lookup_fundamental_type (current_objfile, FT_DBL_PREC_FLOAT); |
e38e0312 | 1934 | case 14: |
1ab3bf1b | 1935 | return lookup_fundamental_type (current_objfile, FT_EXT_PREC_FLOAT); |
e38e0312 | 1936 | case 15: |
1ab3bf1b JG |
1937 | /* requires a builtin `integer' */ |
1938 | return lookup_fundamental_type (current_objfile, FT_INTEGER); | |
e38e0312 | 1939 | case 16: |
1ab3bf1b | 1940 | return lookup_fundamental_type (current_objfile, FT_BOOLEAN); |
e38e0312 | 1941 | case 17: |
1ab3bf1b JG |
1942 | /* requires builtin `short real' */ |
1943 | return lookup_fundamental_type (current_objfile, FT_FLOAT); | |
e38e0312 | 1944 | case 18: |
1ab3bf1b JG |
1945 | /* requires builtin `real' */ |
1946 | return lookup_fundamental_type (current_objfile, FT_FLOAT); | |
e38e0312 JG |
1947 | default : |
1948 | printf ("ERROR! Unknown builtin type -%d\n", typenums[1]); | |
1949 | return NULL; | |
1950 | } | |
1951 | } | |
1952 | ||
1ab3bf1b JG |
1953 | #if 0 /* Seems to be unused, don't bother converting from old misc function |
1954 | vector usage to new minimal symbol tables. FIXME: Delete this? */ | |
1955 | ||
e38e0312 JG |
1956 | /* if we now nothing about a function but its address, make a function symbol |
1957 | out of it with the limited knowladge you have. This will be used when | |
1958 | somebody refers to a function, which doesn't exist in the symbol table, | |
1ab3bf1b | 1959 | but is in the minimal symbol table. */ |
e38e0312 JG |
1960 | |
1961 | struct symbol * | |
1ab3bf1b | 1962 | build_function_symbol (ind, objfile) |
e38e0312 | 1963 | int ind; |
1ab3bf1b | 1964 | struct objfile *objfile; |
e38e0312 JG |
1965 | { |
1966 | struct symbol *sym = | |
1ab3bf1b | 1967 | (struct symbol *) obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol)); |
e38e0312 JG |
1968 | SYMBOL_NAME (sym) = misc_function_vector[ind].name; |
1969 | /* SYMBOL_VALUE (sym) = misc_function_vector[ind].address; */ | |
1970 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1971 | SYMBOL_CLASS (sym) = LOC_BLOCK; | |
1ab3bf1b | 1972 | SYMBOL_TYPE (sym) = lookup_function_type (lookup_fundamental_type (current_objfile, FT_INTEGER)); |
e38e0312 | 1973 | SYMBOL_BLOCK_VALUE (sym) = (struct block *) |
1ab3bf1b | 1974 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct block)); |
e38e0312 JG |
1975 | BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) = misc_function_vector[ind].address; |
1976 | return sym; | |
1977 | } | |
1978 | ||
1ab3bf1b | 1979 | #endif |
e38e0312 | 1980 | |
1ab3bf1b | 1981 | static void |
e38e0312 JG |
1982 | aixcoff_new_init () |
1983 | { | |
818de002 PB |
1984 | /* This routine is executed once per executable. We should start with a |
1985 | fresh include table per executable. */ | |
1986 | ||
1987 | if (inclTable) { | |
1988 | free (inclTable); | |
1989 | inclTable = NULL; | |
1990 | } | |
1991 | inclIndx = inclLength = inclDepth = NULL; | |
e38e0312 JG |
1992 | } |
1993 | ||
1ab3bf1b | 1994 | static void |
e38e0312 JG |
1995 | aixcoff_symfile_init (sf) |
1996 | struct sym_fns *sf; | |
1997 | { | |
1998 | bfd *abfd = sf->sym_bfd; | |
1999 | ||
2000 | /* Allocate struct to keep track of the symfile */ | |
2001 | /* FIXME memory leak */ | |
2002 | sf->sym_private = xmalloc(sizeof (struct coff_symfile_info)); | |
2003 | ||
2004 | /* | |
2005 | * Save startup file's range of PC addresses to help | |
2006 | * blockframe.c decide where the bottom of the stack is. | |
2007 | */ | |
2008 | if (bfd_get_file_flags(abfd) & EXEC_P) { | |
2009 | entry_point = bfd_get_start_address(abfd); | |
2010 | } else { | |
2011 | entry_point = ~0; | |
2012 | /* set the startup file to be an empty range. */ | |
2013 | startup_file_start = 0; | |
2014 | startup_file_end = 0; | |
2015 | } | |
2016 | } | |
2017 | ||
2018 | ||
2019 | static int | |
1ab3bf1b | 2020 | init_stringtab(abfd, offset, objfile) |
e38e0312 JG |
2021 | bfd *abfd; |
2022 | long offset; | |
1ab3bf1b | 2023 | struct objfile *objfile; |
e38e0312 JG |
2024 | { |
2025 | long length; | |
2026 | int val; | |
2027 | unsigned char lengthbuf[4]; | |
2028 | ||
2029 | if (bfd_seek(abfd, offset, 0) < 0) | |
2030 | return -1; | |
2031 | ||
2032 | val = bfd_read((char *)lengthbuf, 1, sizeof lengthbuf, abfd); | |
2033 | length = bfd_h_get_32(abfd, lengthbuf); | |
2034 | ||
2035 | /* If no string table is needed, then the file may end immediately | |
2036 | after the symbols. Just return with `strtbl' set to null. */ | |
2037 | ||
2038 | if (val != sizeof length || length < sizeof length) | |
2039 | return 0; | |
2040 | ||
2041 | /* Allocate string table from symbol_obstack. We will need this table | |
2042 | as long as we have its symbol table around. */ | |
2043 | ||
1ab3bf1b | 2044 | strtbl = (char*) obstack_alloc (&objfile->symbol_obstack, length); |
e38e0312 JG |
2045 | if (strtbl == NULL) |
2046 | return -1; | |
2047 | ||
2048 | bcopy(&length, strtbl, sizeof length); | |
2049 | if (length == sizeof length) | |
2050 | return 0; | |
2051 | ||
2052 | val = bfd_read(strtbl + sizeof length, 1, length - sizeof length, abfd); | |
2053 | ||
2054 | if (val != length - sizeof length || strtbl[length - 1] != '\0') | |
2055 | return -1; | |
2056 | ||
2057 | return 0; | |
2058 | } | |
2059 | ||
2060 | static int | |
2061 | init_debugsection(abfd) | |
2062 | bfd *abfd; | |
2063 | { | |
2064 | register sec_ptr secp; | |
2065 | bfd_size_type length; | |
2066 | ||
2067 | if (debugsec) { | |
2068 | free(debugsec); | |
2069 | debugsec = NULL; | |
2070 | } | |
2071 | ||
2072 | secp = bfd_get_section_by_name(abfd, ".debug"); | |
2073 | if (!secp) | |
2074 | return 0; | |
2075 | ||
2076 | if (!(length = bfd_section_size(abfd, secp))) | |
2077 | return 0; | |
2078 | ||
1ab3bf1b | 2079 | debugsec = (char *) xmalloc ((unsigned)length); |
e38e0312 JG |
2080 | if (debugsec == NULL) |
2081 | return -1; | |
2082 | ||
2083 | if (!bfd_get_section_contents(abfd, secp, debugsec, (file_ptr) 0, length)) { | |
2084 | printf ("Can't read .debug section from symbol file\n"); | |
2085 | return -1; | |
2086 | } | |
2087 | return 0; | |
2088 | } | |
2089 | ||
2090 | static void | |
2091 | free_debugsection() | |
2092 | { | |
2093 | if (debugsec) | |
2094 | free(debugsec); | |
2095 | debugsec = NULL; | |
2096 | } | |
2097 | ||
2098 | ||
2099 | /* aixcoff version of symbol file read. */ | |
2100 | ||
1ab3bf1b | 2101 | static void |
e38e0312 JG |
2102 | aixcoff_symfile_read (sf, addr, mainline) |
2103 | struct sym_fns *sf; | |
2104 | CORE_ADDR addr; | |
2105 | int mainline; | |
2106 | { | |
2107 | int num_symbols; /* # of symbols */ | |
2108 | int symtab_offset; /* symbol table and */ | |
2109 | int stringtab_offset; /* string table file offsets */ | |
2110 | int val; | |
2111 | bfd *abfd; | |
2112 | struct coff_symfile_info *info = (void*) sf->sym_private; | |
2113 | char *name; | |
2114 | ||
2115 | symfile_bfd = abfd = sf->objfile->obfd; | |
2116 | name = sf->objfile->name; | |
2117 | ||
2118 | num_symbols = bfd_get_symcount (abfd); /* # of symbols */ | |
2119 | symtab_offset = obj_sym_filepos (abfd); /* symbol table file offset */ | |
2120 | stringtab_offset = symtab_offset + | |
2121 | num_symbols * coff_data(abfd)->local_symesz; | |
2122 | ||
2123 | info->min_lineno_offset = 0; | |
2124 | info->max_lineno_offset = 0; | |
2125 | bfd_map_over_sections (abfd, find_linenos, info); | |
2126 | ||
2127 | /* FIXME! This stuff should move into symfile_init */ | |
2128 | if (info->min_lineno_offset != 0 | |
2129 | && info->max_lineno_offset > info->min_lineno_offset) { | |
2130 | ||
2131 | /* only read in the line # table if one exists */ | |
2132 | val = init_lineno(abfd, info->min_lineno_offset, | |
2133 | info->max_lineno_offset - info->min_lineno_offset); | |
2134 | ||
2135 | if (val < 0) | |
2136 | error("\"%s\": error reading line numbers\n", name); | |
2137 | } | |
2138 | ||
1ab3bf1b | 2139 | val = init_stringtab(abfd, stringtab_offset, sf->objfile); |
e38e0312 JG |
2140 | if (val < 0) { |
2141 | error ("\"%s\": can't get string table", name); | |
2142 | } | |
2143 | ||
2144 | if (init_debugsection(abfd) < 0) { | |
2145 | error ("Error reading .debug section of `%s'\n", name); | |
2146 | } | |
2147 | ||
2148 | /* Position to read the symbol table. Do not read it all at once. */ | |
2149 | val = bfd_seek(abfd, (long)symtab_offset, 0); | |
2150 | if (val < 0) | |
2151 | perror_with_name(name); | |
2152 | ||
2153 | if (bfd_tell(abfd) != symtab_offset) | |
2154 | fatal("bfd? BFD!"); | |
2155 | ||
1ab3bf1b JG |
2156 | init_minimal_symbol_collection (); |
2157 | make_cleanup (discard_minimal_symbols, 0); | |
e38e0312 JG |
2158 | |
2159 | #ifdef XCOFF_INIT_LOADINFO | |
2160 | if (mainline) | |
2161 | XCOFF_INIT_LOADINFO (); | |
2162 | #endif | |
2163 | ||
2164 | /* Now that the executable file is positioned at symbol table, | |
2165 | process it and define symbols accordingly. */ | |
2166 | ||
2167 | read_xcoff_symtab(sf->objfile, num_symbols); | |
2168 | ||
1ab3bf1b | 2169 | make_cleanup (free_debugsection, 0); |
e38e0312 JG |
2170 | |
2171 | /* Sort symbols alphabetically within each block. */ | |
2172 | sort_syms (); | |
2173 | ||
1ab3bf1b JG |
2174 | /* Install any minimal symbols that have been collected as the current |
2175 | minimal symbols for this objfile. */ | |
2176 | ||
021959e2 | 2177 | install_minimal_symbols (sf -> objfile); |
e38e0312 JG |
2178 | |
2179 | /* Make a default for file to list. */ | |
2180 | select_source_symtab (0); | |
2181 | } | |
2182 | ||
2183 | /* Register our ability to parse symbols for aixcoff BFD files. */ | |
2184 | ||
2185 | static struct sym_fns aixcoff_sym_fns = | |
2186 | { | |
2187 | "aixcoff-rs6000", 15, | |
2188 | aixcoff_new_init, aixcoff_symfile_init, | |
2189 | aixcoff_symfile_read, | |
2190 | }; | |
2191 | ||
2192 | void | |
2193 | _initialize_xcoffread () | |
2194 | { | |
2195 | add_symtab_fns(&aixcoff_sym_fns); | |
2196 | } | |
818de002 PB |
2197 | #else /* IBM6000 */ |
2198 | struct type * | |
2199 | builtin_type (pp) | |
2200 | char **pp; | |
2201 | { | |
2202 | fatal ("internals eror: builtin_type called!"); | |
2203 | } | |
2204 | #endif /* IBM6000 */ |