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Replaced calls to KERNEL.Yield16 by calls to KERNEL32.K32WOWYield from
[wine.git] / debugger / msc.c
blob97719a6591adc0d86d17b8aa4f54fedf0ca26f0f
1 /*
2 * File msc.c - read VC++ debug information from COFF and eventually
3 * from PDB files.
4 *
5 * Copyright (C) 1996, Eric Youngdale.
6 * Copyright (C) 1999, 2000, Ulrich Weigand.
7 *
8 * Note - this handles reading debug information for 32 bit applications
9 * that run under Windows-NT for example. I doubt that this would work well
10 * for 16 bit applications, but I don't think it really matters since the
11 * file format is different, and we should never get in here in such cases.
12 *
13 * TODO:
14 * Get 16 bit CV stuff working.
15 * Add symbol size to internal symbol table.
16 */
17
18 #include "config.h"
19 #include <stdlib.h>
20
21 #include <string.h>
22 #include <unistd.h>
23 #ifndef PATH_MAX
24 #define PATH_MAX _MAX_PATH
25 #endif
26 #include "debugger.h"
27 #include "file.h"
28
29 typedef struct
30 {
31 DWORD from;
32 DWORD to;
33
34 } OMAP_DATA;
35
36 typedef struct tagMSC_DBG_INFO
37 {
38 int nsect;
39 PIMAGE_SECTION_HEADER sectp;
40
41 int nomap;
42 OMAP_DATA * omapp;
43
44 } MSC_DBG_INFO;
45
46 /*========================================================================
47 * Debug file access helper routines
48 */
49
50
51 /***********************************************************************
52 * DEBUG_LocateDebugInfoFile
53 *
54 * NOTE: dbg_filename must be at least MAX_PATHNAME_LEN bytes in size
55 */
56 static void DEBUG_LocateDebugInfoFile(const char *filename, char *dbg_filename)
57 {
58 char *str1 = DBG_alloc(MAX_PATHNAME_LEN);
59 char *str2 = DBG_alloc(MAX_PATHNAME_LEN*10);
60 const char *file;
61 char *name_part;
62
63 file = strrchr(filename, '\\');
64 if( file == NULL ) file = filename; else file++;
65
66 if ((GetEnvironmentVariable("_NT_SYMBOL_PATH", str1, MAX_PATHNAME_LEN) &&
67 (SearchPath(str1, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part))) ||
68 (GetEnvironmentVariable("_NT_ALT_SYMBOL_PATH", str1, MAX_PATHNAME_LEN) &&
69 (SearchPath(str1, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part))) ||
70 (SearchPath(NULL, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part)))
71 lstrcpyn(dbg_filename, str2, MAX_PATHNAME_LEN);
72 else
73 lstrcpyn(dbg_filename, filename, MAX_PATHNAME_LEN);
74 DBG_free(str1);
75 DBG_free(str2);
76 }
77
78 /***********************************************************************
79 * DEBUG_MapDebugInfoFile
80 */
81 static void* DEBUG_MapDebugInfoFile(const char* name, DWORD offset, DWORD size,
82 HANDLE* hFile, HANDLE* hMap)
83 {
84 OFSTRUCT ofs;
85 DWORD g_offset; /* offset aligned on map granuality */
86 DWORD g_size; /* size to map, with offset aligned */
87 char* ret;
88
89 *hMap = 0;
90
91 if (name != NULL) {
92 char filename[MAX_PATHNAME_LEN];
93
94 DEBUG_LocateDebugInfoFile(name, filename);
95 if ((*hFile = OpenFile(filename, &ofs, OF_READ)) == HFILE_ERROR)
96 return NULL;
97 }
98
99 if (!size) {
100 DWORD file_size = GetFileSize(*hFile, NULL);
101 if (file_size == (DWORD)-1) return NULL;
102 size = file_size - offset;
103 }
104
105 g_offset = offset & ~0xFFFF; /* FIXME: is granularity portable ? */
106 g_size = offset + size - g_offset;
107
108 if ((*hMap = CreateFileMapping(*hFile, NULL, PAGE_READONLY, 0, 0, NULL)) == 0)
109 return NULL;
110
111 if ((ret = MapViewOfFile(*hMap, FILE_MAP_READ, 0, g_offset, g_size)) != NULL)
112 ret += offset - g_offset;
113 return ret;
114 }
115
116 /***********************************************************************
117 * DEBUG_UnmapDebugInfoFile
118 */
119 static void DEBUG_UnmapDebugInfoFile(HANDLE hFile, HANDLE hMap, void* addr)
120 {
121 if (addr) UnmapViewOfFile(addr);
122 if (hMap) CloseHandle(hMap);
123 if (hFile) CloseHandle(hFile);
124 }
125
126
127
128 /*========================================================================
129 * Process COFF debug information.
130 */
131
132 struct CoffFile
133 {
134 unsigned int startaddr;
135 unsigned int endaddr;
136 const char *filename;
137 int linetab_offset;
138 int linecnt;
139 struct name_hash **entries;
140 int neps;
141 int neps_alloc;
142 };
143
144 struct CoffFileSet
145 {
146 struct CoffFile *files;
147 int nfiles;
148 int nfiles_alloc;
149 };
150
151 static const char* DEBUG_GetCoffName( PIMAGE_SYMBOL coff_sym, const char* coff_strtab )
152 {
153 static char namebuff[9];
154 const char* nampnt;
155
156 if( coff_sym->N.Name.Short )
157 {
158 memcpy(namebuff, coff_sym->N.ShortName, 8);
159 namebuff[8] = '\0';
160 nampnt = &namebuff[0];
161 }
162 else
163 {
164 nampnt = coff_strtab + coff_sym->N.Name.Long;
165 }
166
167 if( nampnt[0] == '_' )
168 nampnt++;
169 return nampnt;
170 }
171
172 static int DEBUG_AddCoffFile( struct CoffFileSet* coff_files, const char* filename )
173 {
174 struct CoffFile* file;
175
176 if( coff_files->nfiles + 1 >= coff_files->nfiles_alloc )
177 {
178 coff_files->nfiles_alloc += 10;
179 coff_files->files = (struct CoffFile *) DBG_realloc(coff_files->files,
180 coff_files->nfiles_alloc * sizeof(struct CoffFile));
181 }
182 file = coff_files->files + coff_files->nfiles;
183 file->startaddr = 0xffffffff;
184 file->endaddr = 0;
185 file->filename = filename;
186 file->linetab_offset = -1;
187 file->linecnt = 0;
188 file->entries = NULL;
189 file->neps = file->neps_alloc = 0;
190
191 return coff_files->nfiles++;
192 }
193
194 static void DEBUG_AddCoffSymbol( struct CoffFile* coff_file, struct name_hash* sym )
195 {
196 if( coff_file->neps + 1 >= coff_file->neps_alloc )
197 {
198 coff_file->neps_alloc += 10;
199 coff_file->entries = (struct name_hash **)
200 DBG_realloc(coff_file->entries,
201 coff_file->neps_alloc * sizeof(struct name_hash *));
202 }
203 coff_file->entries[coff_file->neps++] = sym;
204 }
205
206 static enum DbgInfoLoad DEBUG_ProcessCoff( DBG_MODULE *module, LPBYTE root )
207 {
208 PIMAGE_AUX_SYMBOL aux;
209 PIMAGE_COFF_SYMBOLS_HEADER coff;
210 PIMAGE_LINENUMBER coff_linetab;
211 PIMAGE_LINENUMBER linepnt;
212 char * coff_strtab;
213 PIMAGE_SYMBOL coff_sym;
214 PIMAGE_SYMBOL coff_symbols;
215 struct CoffFileSet coff_files;
216 int curr_file_idx = -1;
217 int i;
218 int j;
219 int k;
220 int linetab_indx;
221 const char * nampnt;
222 int naux;
223 DBG_VALUE new_value;
224 enum DbgInfoLoad dil = DIL_ERROR;
225
226 DEBUG_Printf(DBG_CHN_TRACE, "Processing COFF symbols...\n");
227
228 assert(sizeof(IMAGE_SYMBOL) == IMAGE_SIZEOF_SYMBOL);
229 assert(sizeof(IMAGE_LINENUMBER) == IMAGE_SIZEOF_LINENUMBER);
230
231 coff_files.files = NULL;
232 coff_files.nfiles = coff_files.nfiles_alloc = 0;
233
234 coff = (PIMAGE_COFF_SYMBOLS_HEADER) root;
235
236 coff_symbols = (PIMAGE_SYMBOL) ((unsigned int) coff + coff->LvaToFirstSymbol);
237 coff_linetab = (PIMAGE_LINENUMBER) ((unsigned int) coff + coff->LvaToFirstLinenumber);
238 coff_strtab = (char *) (coff_symbols + coff->NumberOfSymbols);
239
240 linetab_indx = 0;
241
242 new_value.cookie = DV_TARGET;
243 new_value.type = NULL;
244
245 for(i=0; i < coff->NumberOfSymbols; i++ )
246 {
247 coff_sym = coff_symbols + i;
248 naux = coff_sym->NumberOfAuxSymbols;
249
250 if( coff_sym->StorageClass == IMAGE_SYM_CLASS_FILE )
251 {
252 curr_file_idx = DEBUG_AddCoffFile( &coff_files, (char *) (coff_sym + 1) );
253 DEBUG_Printf(DBG_CHN_TRACE,"New file %s\n", coff_files.files[curr_file_idx].filename);
254 i += naux;
255 continue;
256 }
257
258 if (curr_file_idx < 0) {
259 assert(coff_files.nfiles == 0 && coff_files.nfiles_alloc == 0);
260 curr_file_idx = DEBUG_AddCoffFile( &coff_files, "<none>" );
261 DEBUG_Printf(DBG_CHN_TRACE,"New file %s\n", coff_files.files[curr_file_idx].filename);
262 }
263
264 /*
265 * This guy marks the size and location of the text section
266 * for the current file. We need to keep track of this so
267 * we can figure out what file the different global functions
268 * go with.
269 */
270 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC)
271 && (naux != 0)
272 && (coff_sym->Type == 0)
273 && (coff_sym->SectionNumber == 1) )
274 {
275 aux = (PIMAGE_AUX_SYMBOL) (coff_sym + 1);
276
277 if( coff_files.files[curr_file_idx].linetab_offset != -1 )
278 {
279 /*
280 * Save this so we can still get the old name.
281 */
282 const char* fn = coff_files.files[curr_file_idx].filename;
283
284 #ifdef MORE_DBG
285 DEBUG_Printf(DBG_CHN_TRACE, "Duplicating sect from %s: %lx %x %x %d %d\n",
286 coff_files.files[curr_file_idx].filename,
287 aux->Section.Length,
288 aux->Section.NumberOfRelocations,
289 aux->Section.NumberOfLinenumbers,
290 aux->Section.Number,
291 aux->Section.Selection);
292 DEBUG_Printf(DBG_CHN_TRACE, "More sect %d %s %08lx %d %d %d\n",
293 coff_sym->SectionNumber,
294 DEBUG_GetCoffName( coff_sym, coff_strtab ),
295 coff_sym->Value,
296 coff_sym->Type,
297 coff_sym->StorageClass,
298 coff_sym->NumberOfAuxSymbols);
299 #endif
300
301 /*
302 * Duplicate the file entry. We have no way to describe
303 * multiple text sections in our current way of handling things.
304 */
305 DEBUG_AddCoffFile( &coff_files, fn );
306 }
307 #ifdef MORE_DBG
308 else
309 {
310 DEBUG_Printf(DBG_CHN_TRACE, "New text sect from %s: %lx %x %x %d %d\n",
311 coff_files.files[curr_file_idx].filename,
312 aux->Section.Length,
313 aux->Section.NumberOfRelocations,
314 aux->Section.NumberOfLinenumbers,
315 aux->Section.Number,
316 aux->Section.Selection);
317 }
318 #endif
319
320 if( coff_files.files[curr_file_idx].startaddr > coff_sym->Value )
321 {
322 coff_files.files[curr_file_idx].startaddr = coff_sym->Value;
323 }
324
325 if( coff_files.files[curr_file_idx].endaddr < coff_sym->Value + aux->Section.Length )
326 {
327 coff_files.files[curr_file_idx].endaddr = coff_sym->Value + aux->Section.Length;
328 }
329
330 coff_files.files[curr_file_idx].linetab_offset = linetab_indx;
331 coff_files.files[curr_file_idx].linecnt = aux->Section.NumberOfLinenumbers;
332 linetab_indx += aux->Section.NumberOfLinenumbers;
333 i += naux;
334 continue;
335 }
336
337 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC)
338 && (naux == 0)
339 && (coff_sym->SectionNumber == 1) )
340 {
341 DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
342 /*
343 * This is a normal static function when naux == 0.
344 * Just register it. The current file is the correct
345 * one in this instance.
346 */
347 nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab );
348
349 new_value.addr.seg = 0;
350 new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value);
351
352 #ifdef MORE_DBG
353 DEBUG_Printf(DBG_CHN_TRACE,"\tAdding static symbol %s\n", nampnt);
354 #endif
355
356 /* FIXME: was adding symbol to this_file ??? */
357 DEBUG_AddCoffSymbol( &coff_files.files[curr_file_idx],
358 DEBUG_AddSymbol( nampnt, &new_value,
359 coff_files.files[curr_file_idx].filename,
360 SYM_WIN32 | SYM_FUNC ) );
361 i += naux;
362 continue;
363 }
364
365 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL)
366 && ISFCN(coff_sym->Type)
367 && (coff_sym->SectionNumber > 0) )
368 {
369 const char* this_file = NULL;
370 DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
371 nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab );
372
373 new_value.addr.seg = 0;
374 new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value);
375
376 #ifdef MORE_DBG
377 DEBUG_Printf(DBG_CHN_TRACE, "%d: %lx %s\n", i, new_value.addr.off, nampnt);
378
379 DEBUG_Printf(DBG_CHN_TRACE,"\tAdding global symbol %s (sect=%s)\n",
380 nampnt, MSC_INFO(module)->sectp[coff_sym->SectionNumber - 1].Name);
381 #endif
382
383 /*
384 * Now we need to figure out which file this guy belongs to.
385 */
386 for(j=0; j < coff_files.nfiles; j++)
387 {
388 if( coff_files.files[j].startaddr <= base + coff_sym->Value
389 && coff_files.files[j].endaddr > base + coff_sym->Value )
390 {
391 this_file = coff_files.files[j].filename;
392 break;
393 }
394 }
395 if (j < coff_files.nfiles) {
396 DEBUG_AddCoffSymbol( &coff_files.files[j],
397 DEBUG_AddSymbol( nampnt, &new_value, this_file, SYM_WIN32 | SYM_FUNC ) );
398 } else {
399 DEBUG_AddSymbol( nampnt, &new_value, NULL, SYM_WIN32 | SYM_FUNC );
400 }
401 i += naux;
402 continue;
403 }
404
405 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL)
406 && (coff_sym->SectionNumber > 0) )
407 {
408 DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
409 /*
410 * Similar to above, but for the case of data symbols.
411 * These aren't treated as entrypoints.
412 */
413 nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab );
414
415 new_value.addr.seg = 0;
416 new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value);
417
418 #ifdef MORE_DBG
419 DEBUG_Printf(DBG_CHN_TRACE, "%d: %lx %s\n", i, new_value.addr.off, nampnt);
420
421 DEBUG_Printf(DBG_CHN_TRACE,"\tAdding global data symbol %s\n", nampnt);
422 #endif
423
424 /*
425 * Now we need to figure out which file this guy belongs to.
426 */
427 DEBUG_AddSymbol( nampnt, &new_value, NULL, SYM_WIN32 | SYM_DATA );
428 i += naux;
429 continue;
430 }
431
432 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC)
433 && (naux == 0) )
434 {
435 /*
436 * Ignore these. They don't have anything to do with
437 * reality.
438 */
439 i += naux;
440 continue;
441 }
442
443 #ifdef MORE_DBG
444 DEBUG_Printf(DBG_CHN_TRACE,"Skipping unknown entry '%s' %d %d %d\n",
445 DEBUG_GetCoffName( coff_sym, coff_strtab ),
446 coff_sym->StorageClass, coff_sym->SectionNumber, naux);
447 #endif
448
449 /*
450 * For now, skip past the aux entries.
451 */
452 i += naux;
453
454 }
455
456 /*
457 * OK, we now should have a list of files, and we should have a list
458 * of entrypoints. We need to sort the entrypoints so that we are
459 * able to tie the line numbers with the given functions within the
460 * file.
461 */
462 if( coff_files.files != NULL )
463 {
464 for(j=0; j < coff_files.nfiles; j++)
465 {
466 if( coff_files.files[j].entries != NULL )
467 {
468 qsort(coff_files.files[j].entries, coff_files.files[j].neps,
469 sizeof(struct name_hash *), DEBUG_cmp_sym);
470 }
471 }
472
473 /*
474 * Now pick apart the line number tables, and attach the entries
475 * to the given functions.
476 */
477 for(j=0; j < coff_files.nfiles; j++)
478 {
479 i = 0;
480 if( coff_files.files[j].neps != 0 )
481 for(k=0; k < coff_files.files[j].linecnt; k++)
482 {
483 linepnt = coff_linetab + coff_files.files[j].linetab_offset + k;
484 /*
485 * If we have spilled onto the next entrypoint, then
486 * bump the counter..
487 */
488 while(TRUE)
489 {
490 if (i+1 >= coff_files.files[j].neps) break;
491 DEBUG_GetSymbolAddr(coff_files.files[j].entries[i+1], &new_value.addr);
492 if( (((unsigned int)module->load_addr +
493 linepnt->Type.VirtualAddress) >= new_value.addr.off) )
494 {
495 i++;
496 } else break;
497 }
498
499 /*
500 * Add the line number. This is always relative to the
501 * start of the function, so we need to subtract that offset
502 * first.
503 */
504 DEBUG_GetSymbolAddr(coff_files.files[j].entries[i], &new_value.addr);
505 DEBUG_AddLineNumber(coff_files.files[j].entries[i],
506 linepnt->Linenumber,
507 (unsigned int) module->load_addr
508 + linepnt->Type.VirtualAddress
509 - new_value.addr.off);
510 }
511 }
512 }
513
514 dil = DIL_LOADED;
515
516 if( coff_files.files != NULL )
517 {
518 for(j=0; j < coff_files.nfiles; j++)
519 {
520 if( coff_files.files[j].entries != NULL )
521 {
522 DBG_free(coff_files.files[j].entries);
523 }
524 }
525 DBG_free(coff_files.files);
526 }
527
528 return dil;
529
530 }
531
532
533
534 /*========================================================================
535 * Process CodeView type information.
536 */
537
538 union codeview_type
539 {
540 struct
541 {
542 short int len;
543 short int id;
544 } generic;
545
546 struct
547 {
548 short int len;
549 short int id;
550 short int attribute;
551 short int datatype;
552 unsigned char variant[1];
553 } pointer;
554
555 struct
556 {
557 short int len;
558 short int id;
559 unsigned int datatype;
560 unsigned int attribute;
561 unsigned char variant[1];
562 } pointer32;
563
564 struct
565 {
566 short int len;
567 short int id;
568 unsigned char nbits;
569 unsigned char bitoff;
570 unsigned short type;
571 } bitfield;
572
573 struct
574 {
575 short int len;
576 short int id;
577 unsigned int type;
578 unsigned char nbits;
579 unsigned char bitoff;
580 } bitfield32;
581
582 struct
583 {
584 short int len;
585 short int id;
586 short int elemtype;
587 short int idxtype;
588 unsigned short int arrlen; /* numeric leaf */
589 #if 0
590 unsigned char name[1];
591 #endif
592 } array;
593
594 struct
595 {
596 short int len;
597 short int id;
598 unsigned int elemtype;
599 unsigned int idxtype;
600 unsigned short int arrlen; /* numeric leaf */
601 #if 0
602 unsigned char name[1];
603 #endif
604 } array32;
605
606 struct
607 {
608 short int len;
609 short int id;
610 short int n_element;
611 short int fieldlist;
612 short int property;
613 short int derived;
614 short int vshape;
615 unsigned short int structlen; /* numeric leaf */
616 #if 0
617 unsigned char name[1];
618 #endif
619 } structure;
620
621 struct
622 {
623 short int len;
624 short int id;
625 short int n_element;
626 short int property;
627 unsigned int fieldlist;
628 unsigned int derived;
629 unsigned int vshape;
630 unsigned short int structlen; /* numeric leaf */
631 #if 0
632 unsigned char name[1];
633 #endif
634 } structure32;
635
636 struct
637 {
638 short int len;
639 short int id;
640 short int count;
641 short int fieldlist;
642 short int property;
643 unsigned short int un_len; /* numeric leaf */
644 #if 0
645 unsigned char name[1];
646 #endif
647 } t_union;
648
649 struct
650 {
651 short int len;
652 short int id;
653 short int count;
654 short int property;
655 unsigned int fieldlist;
656 unsigned short int un_len; /* numeric leaf */
657 #if 0
658 unsigned char name[1];
659 #endif
660 } t_union32;
661
662 struct
663 {
664 short int len;
665 short int id;
666 short int count;
667 short int type;
668 short int field;
669 short int property;
670 unsigned char name[1];
671 } enumeration;
672
673 struct
674 {
675 short int len;
676 short int id;
677 short int count;
678 short int property;
679 unsigned int type;
680 unsigned int field;
681 unsigned char name[1];
682 } enumeration32;
683
684 struct
685 {
686 short int len;
687 short int id;
688 unsigned char list[1];
689 } fieldlist;
690 };
691
692 union codeview_fieldtype
693 {
694 struct
695 {
696 short int id;
697 } generic;
698
699 struct
700 {
701 short int id;
702 short int type;
703 short int attribute;
704 unsigned short int offset; /* numeric leaf */
705 } bclass;
706
707 struct
708 {
709 short int id;
710 short int attribute;
711 unsigned int type;
712 unsigned short int offset; /* numeric leaf */
713 } bclass32;
714
715 struct
716 {
717 short int id;
718 short int btype;
719 short int vbtype;
720 short int attribute;
721 unsigned short int vbpoff; /* numeric leaf */
722 #if 0
723 unsigned short int vboff; /* numeric leaf */
724 #endif
725 } vbclass;
726
727 struct
728 {
729 short int id;
730 short int attribute;
731 unsigned int btype;
732 unsigned int vbtype;
733 unsigned short int vbpoff; /* numeric leaf */
734 #if 0
735 unsigned short int vboff; /* numeric leaf */
736 #endif
737 } vbclass32;
738
739 struct
740 {
741 short int id;
742 short int attribute;
743 unsigned short int value; /* numeric leaf */
744 #if 0
745 unsigned char name[1];
746 #endif
747 } enumerate;
748
749 struct
750 {
751 short int id;
752 short int type;
753 unsigned char name[1];
754 } friendfcn;
755
756 struct
757 {
758 short int id;
759 short int _pad0;
760 unsigned int type;
761 unsigned char name[1];
762 } friendfcn32;
763
764 struct
765 {
766 short int id;
767 short int type;
768 short int attribute;
769 unsigned short int offset; /* numeric leaf */
770 #if 0
771 unsigned char name[1];
772 #endif
773 } member;
774
775 struct
776 {
777 short int id;
778 short int attribute;
779 unsigned int type;
780 unsigned short int offset; /* numeric leaf */
781 #if 0
782 unsigned char name[1];
783 #endif
784 } member32;
785
786 struct
787 {
788 short int id;
789 short int type;
790 short int attribute;
791 unsigned char name[1];
792 } stmember;
793
794 struct
795 {
796 short int id;
797 short int attribute;
798 unsigned int type;
799 unsigned char name[1];
800 } stmember32;
801
802 struct
803 {
804 short int id;
805 short int count;
806 short int mlist;
807 unsigned char name[1];
808 } method;
809
810 struct
811 {
812 short int id;
813 short int count;
814 unsigned int mlist;
815 unsigned char name[1];
816 } method32;
817
818 struct
819 {
820 short int id;
821 short int index;
822 unsigned char name[1];
823 } nesttype;
824
825 struct
826 {
827 short int id;
828 short int _pad0;
829 unsigned int index;
830 unsigned char name[1];
831 } nesttype32;
832
833 struct
834 {
835 short int id;
836 short int type;
837 } vfunctab;
838
839 struct
840 {
841 short int id;
842 short int _pad0;
843 unsigned int type;
844 } vfunctab32;
845
846 struct
847 {
848 short int id;
849 short int type;
850 } friendcls;
851
852 struct
853 {
854 short int id;
855 short int _pad0;
856 unsigned int type;
857 } friendcls32;
858
859
860 struct
861 {
862 short int id;
863 short int attribute;
864 short int type;
865 unsigned char name[1];
866 } onemethod;
867 struct
868 {
869 short int id;
870 short int attribute;
871 short int type;
872 unsigned int vtab_offset;
873 unsigned char name[1];
874 } onemethod_virt;
875
876 struct
877 {
878 short int id;
879 short int attribute;
880 unsigned int type;
881 unsigned char name[1];
882 } onemethod32;
883 struct
884 {
885 short int id;
886 short int attribute;
887 unsigned int type;
888 unsigned int vtab_offset;
889 unsigned char name[1];
890 } onemethod32_virt;
891
892 struct
893 {
894 short int id;
895 short int type;
896 unsigned int offset;
897 } vfuncoff;
898
899 struct
900 {
901 short int id;
902 short int _pad0;
903 unsigned int type;
904 unsigned int offset;
905 } vfuncoff32;
906
907 struct
908 {
909 short int id;
910 short int attribute;
911 short int index;
912 unsigned char name[1];
913 } nesttypeex;
914
915 struct
916 {
917 short int id;
918 short int attribute;
919 unsigned int index;
920 unsigned char name[1];
921 } nesttypeex32;
922
923 struct
924 {
925 short int id;
926 short int attribute;
927 unsigned int type;
928 unsigned char name[1];
929 } membermodify;
930 };
931
932
933 /*
934 * This covers the basic datatypes that VC++ seems to be using these days.
935 * 32 bit mode only. There are additional numbers for the pointers in 16
936 * bit mode. There are many other types listed in the documents, but these
937 * are apparently not used by the compiler, or represent pointer types
938 * that are not used.
939 */
940 #define T_NOTYPE 0x0000 /* Notype */
941 #define T_ABS 0x0001 /* Abs */
942 #define T_VOID 0x0003 /* Void */
943 #define T_CHAR 0x0010 /* signed char */
944 #define T_SHORT 0x0011 /* short */
945 #define T_LONG 0x0012 /* long */
946 #define T_QUAD 0x0013 /* long long */
947 #define T_UCHAR 0x0020 /* unsigned char */
948 #define T_USHORT 0x0021 /* unsigned short */
949 #define T_ULONG 0x0022 /* unsigned long */
950 #define T_UQUAD 0x0023 /* unsigned long long */
951 #define T_REAL32 0x0040 /* float */
952 #define T_REAL64 0x0041 /* double */
953 #define T_RCHAR 0x0070 /* real char */
954 #define T_WCHAR 0x0071 /* wide char */
955 #define T_INT4 0x0074 /* int */
956 #define T_UINT4 0x0075 /* unsigned int */
957
958 #define T_32PVOID 0x0403 /* 32 bit near pointer to void */
959 #define T_32PCHAR 0x0410 /* 16:32 near pointer to signed char */
960 #define T_32PSHORT 0x0411 /* 16:32 near pointer to short */
961 #define T_32PLONG 0x0412 /* 16:32 near pointer to int */
962 #define T_32PQUAD 0x0413 /* 16:32 near pointer to long long */
963 #define T_32PUCHAR 0x0420 /* 16:32 near pointer to unsigned char */
964 #define T_32PUSHORT 0x0421 /* 16:32 near pointer to unsigned short */
965 #define T_32PULONG 0x0422 /* 16:32 near pointer to unsigned int */
966 #define T_32PUQUAD 0x0423 /* 16:32 near pointer to long long */
967 #define T_32PREAL32 0x0440 /* 16:32 near pointer to float */
968 #define T_32PREAL64 0x0441 /* 16:32 near pointer to float */
969 #define T_32PRCHAR 0x0470 /* 16:32 near pointer to real char */
970 #define T_32PWCHAR 0x0471 /* 16:32 near pointer to real char */
971 #define T_32PINT4 0x0474 /* 16:32 near pointer to int */
972 #define T_32PUINT4 0x0475 /* 16:32 near pointer to unsigned int */
973
974
975 #define LF_MODIFIER 0x0001
976 #define LF_POINTER 0x0002
977 #define LF_ARRAY 0x0003
978 #define LF_CLASS 0x0004
979 #define LF_STRUCTURE 0x0005
980 #define LF_UNION 0x0006
981 #define LF_ENUM 0x0007
982 #define LF_PROCEDURE 0x0008
983 #define LF_MFUNCTION 0x0009
984 #define LF_VTSHAPE 0x000a
985 #define LF_COBOL0 0x000b
986 #define LF_COBOL1 0x000c
987 #define LF_BARRAY 0x000d
988 #define LF_LABEL 0x000e
989 #define LF_NULL 0x000f
990 #define LF_NOTTRAN 0x0010
991 #define LF_DIMARRAY 0x0011
992 #define LF_VFTPATH 0x0012
993 #define LF_PRECOMP 0x0013
994 #define LF_ENDPRECOMP 0x0014
995 #define LF_OEM 0x0015
996 #define LF_TYPESERVER 0x0016
997
998 #define LF_MODIFIER_32 0x1001 /* variants with new 32-bit type indices */
999 #define LF_POINTER_32 0x1002
1000 #define LF_ARRAY_32 0x1003
1001 #define LF_CLASS_32 0x1004
1002 #define LF_STRUCTURE_32 0x1005
1003 #define LF_UNION_32 0x1006
1004 #define LF_ENUM_32 0x1007
1005 #define LF_PROCEDURE_32 0x1008
1006 #define LF_MFUNCTION_32 0x1009
1007 #define LF_COBOL0_32 0x100a
1008 #define LF_BARRAY_32 0x100b
1009 #define LF_DIMARRAY_32 0x100c
1010 #define LF_VFTPATH_32 0x100d
1011 #define LF_PRECOMP_32 0x100e
1012 #define LF_OEM_32 0x100f
1013
1014 #define LF_SKIP 0x0200
1015 #define LF_ARGLIST 0x0201
1016 #define LF_DEFARG 0x0202
1017 #define LF_LIST 0x0203
1018 #define LF_FIELDLIST 0x0204
1019 #define LF_DERIVED 0x0205
1020 #define LF_BITFIELD 0x0206
1021 #define LF_METHODLIST 0x0207
1022 #define LF_DIMCONU 0x0208
1023 #define LF_DIMCONLU 0x0209
1024 #define LF_DIMVARU 0x020a
1025 #define LF_DIMVARLU 0x020b
1026 #define LF_REFSYM 0x020c
1027
1028 #define LF_SKIP_32 0x1200 /* variants with new 32-bit type indices */
1029 #define LF_ARGLIST_32 0x1201
1030 #define LF_DEFARG_32 0x1202
1031 #define LF_FIELDLIST_32 0x1203
1032 #define LF_DERIVED_32 0x1204
1033 #define LF_BITFIELD_32 0x1205
1034 #define LF_METHODLIST_32 0x1206
1035 #define LF_DIMCONU_32 0x1207
1036 #define LF_DIMCONLU_32 0x1208
1037 #define LF_DIMVARU_32 0x1209
1038 #define LF_DIMVARLU_32 0x120a
1039
1040 #define LF_BCLASS 0x0400
1041 #define LF_VBCLASS 0x0401
1042 #define LF_IVBCLASS 0x0402
1043 #define LF_ENUMERATE 0x0403
1044 #define LF_FRIENDFCN 0x0404
1045 #define LF_INDEX 0x0405
1046 #define LF_MEMBER 0x0406
1047 #define LF_STMEMBER 0x0407
1048 #define LF_METHOD 0x0408
1049 #define LF_NESTTYPE 0x0409
1050 #define LF_VFUNCTAB 0x040a
1051 #define LF_FRIENDCLS 0x040b
1052 #define LF_ONEMETHOD 0x040c
1053 #define LF_VFUNCOFF 0x040d
1054 #define LF_NESTTYPEEX 0x040e
1055 #define LF_MEMBERMODIFY 0x040f
1056
1057 #define LF_BCLASS_32 0x1400 /* variants with new 32-bit type indices */
1058 #define LF_VBCLASS_32 0x1401
1059 #define LF_IVBCLASS_32 0x1402
1060 #define LF_FRIENDFCN_32 0x1403
1061 #define LF_INDEX_32 0x1404
1062 #define LF_MEMBER_32 0x1405
1063 #define LF_STMEMBER_32 0x1406
1064 #define LF_METHOD_32 0x1407
1065 #define LF_NESTTYPE_32 0x1408
1066 #define LF_VFUNCTAB_32 0x1409
1067 #define LF_FRIENDCLS_32 0x140a
1068 #define LF_ONEMETHOD_32 0x140b
1069 #define LF_VFUNCOFF_32 0x140c
1070 #define LF_NESTTYPEEX_32 0x140d
1071
1072 #define LF_NUMERIC 0x8000 /* numeric leaf types */
1073 #define LF_CHAR 0x8000
1074 #define LF_SHORT 0x8001
1075 #define LF_USHORT 0x8002
1076 #define LF_LONG 0x8003
1077 #define LF_ULONG 0x8004
1078 #define LF_REAL32 0x8005
1079 #define LF_REAL64 0x8006
1080 #define LF_REAL80 0x8007
1081 #define LF_REAL128 0x8008
1082 #define LF_QUADWORD 0x8009
1083 #define LF_UQUADWORD 0x800a
1084 #define LF_REAL48 0x800b
1085 #define LF_COMPLEX32 0x800c
1086 #define LF_COMPLEX64 0x800d
1087 #define LF_COMPLEX80 0x800e
1088 #define LF_COMPLEX128 0x800f
1089 #define LF_VARSTRING 0x8010
1090
1091
1092
1093 #define MAX_BUILTIN_TYPES 0x480
1094 static struct datatype * cv_basic_types[MAX_BUILTIN_TYPES];
1095 static int num_cv_defined_types = 0;
1096 static struct datatype **cv_defined_types = NULL;
1097
1098 void
1099 DEBUG_InitCVDataTypes(void)
1100 {
1101 /*
1102 * These are the common builtin types that are used by VC++.
1103 */
1104 cv_basic_types[T_NOTYPE] = NULL;
1105 cv_basic_types[T_ABS] = NULL;
1106 cv_basic_types[T_VOID] = DEBUG_NewDataType(DT_BASIC, "void");
1107 cv_basic_types[T_CHAR] = DEBUG_NewDataType(DT_BASIC, "char");
1108 cv_basic_types[T_SHORT] = DEBUG_NewDataType(DT_BASIC, "short int");
1109 cv_basic_types[T_LONG] = DEBUG_NewDataType(DT_BASIC, "long int");
1110 cv_basic_types[T_QUAD] = DEBUG_NewDataType(DT_BASIC, "long long int");
1111 cv_basic_types[T_UCHAR] = DEBUG_NewDataType(DT_BASIC, "unsigned char");
1112 cv_basic_types[T_USHORT] = DEBUG_NewDataType(DT_BASIC, "short unsigned int");
1113 cv_basic_types[T_ULONG] = DEBUG_NewDataType(DT_BASIC, "long unsigned int");
1114 cv_basic_types[T_UQUAD] = DEBUG_NewDataType(DT_BASIC, "long long unsigned int");
1115 cv_basic_types[T_REAL32] = DEBUG_NewDataType(DT_BASIC, "float");
1116 cv_basic_types[T_REAL64] = DEBUG_NewDataType(DT_BASIC, "double");
1117 cv_basic_types[T_RCHAR] = DEBUG_NewDataType(DT_BASIC, "char");
1118 cv_basic_types[T_WCHAR] = DEBUG_NewDataType(DT_BASIC, "short");
1119 cv_basic_types[T_INT4] = DEBUG_NewDataType(DT_BASIC, "int");
1120 cv_basic_types[T_UINT4] = DEBUG_NewDataType(DT_BASIC, "unsigned int");
1121
1122 cv_basic_types[T_32PVOID] = DEBUG_FindOrMakePointerType(cv_basic_types[T_VOID]);
1123 cv_basic_types[T_32PCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_CHAR]);
1124 cv_basic_types[T_32PSHORT] = DEBUG_FindOrMakePointerType(cv_basic_types[T_SHORT]);
1125 cv_basic_types[T_32PLONG] = DEBUG_FindOrMakePointerType(cv_basic_types[T_LONG]);
1126 cv_basic_types[T_32PQUAD] = DEBUG_FindOrMakePointerType(cv_basic_types[T_QUAD]);
1127 cv_basic_types[T_32PUCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UCHAR]);
1128 cv_basic_types[T_32PUSHORT] = DEBUG_FindOrMakePointerType(cv_basic_types[T_USHORT]);
1129 cv_basic_types[T_32PULONG] = DEBUG_FindOrMakePointerType(cv_basic_types[T_ULONG]);
1130 cv_basic_types[T_32PUQUAD] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UQUAD]);
1131 cv_basic_types[T_32PREAL32] = DEBUG_FindOrMakePointerType(cv_basic_types[T_REAL32]);
1132 cv_basic_types[T_32PREAL64] = DEBUG_FindOrMakePointerType(cv_basic_types[T_REAL64]);
1133 cv_basic_types[T_32PRCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_RCHAR]);
1134 cv_basic_types[T_32PWCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_WCHAR]);
1135 cv_basic_types[T_32PINT4] = DEBUG_FindOrMakePointerType(cv_basic_types[T_INT4]);
1136 cv_basic_types[T_32PUINT4] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UINT4]);
1137 }
1138
1139
1140 static int
1141 numeric_leaf( int *value, unsigned short int *leaf )
1142 {
1143 unsigned short int type = *leaf++;
1144 int length = 2;
1145
1146 if ( type < LF_NUMERIC )
1147 {
1148 *value = type;
1149 }
1150 else
1151 {
1152 switch ( type )
1153 {
1154 case LF_CHAR:
1155 length += 1;
1156 *value = *(char *)leaf;
1157 break;
1158
1159 case LF_SHORT:
1160 length += 2;
1161 *value = *(short *)leaf;
1162 break;
1163
1164 case LF_USHORT:
1165 length += 2;
1166 *value = *(unsigned short *)leaf;
1167 break;
1168
1169 case LF_LONG:
1170 length += 4;
1171 *value = *(int *)leaf;
1172 break;
1173
1174 case LF_ULONG:
1175 length += 4;
1176 *value = *(unsigned int *)leaf;
1177 break;
1178
1179 case LF_QUADWORD:
1180 case LF_UQUADWORD:
1181 length += 8;
1182 *value = 0; /* FIXME */
1183 break;
1184
1185 case LF_REAL32:
1186 length += 4;
1187 *value = 0; /* FIXME */
1188 break;
1189
1190 case LF_REAL48:
1191 length += 6;
1192 *value = 0; /* FIXME */
1193 break;
1194
1195 case LF_REAL64:
1196 length += 8;
1197 *value = 0; /* FIXME */
1198 break;
1199
1200 case LF_REAL80:
1201 length += 10;
1202 *value = 0; /* FIXME */
1203 break;
1204
1205 case LF_REAL128:
1206 length += 16;
1207 *value = 0; /* FIXME */
1208 break;
1209
1210 case LF_COMPLEX32:
1211 length += 4;
1212 *value = 0; /* FIXME */
1213 break;
1214
1215 case LF_COMPLEX64:
1216 length += 8;
1217 *value = 0; /* FIXME */
1218 break;
1219
1220 case LF_COMPLEX80:
1221 length += 10;
1222 *value = 0; /* FIXME */
1223 break;
1224
1225 case LF_COMPLEX128:
1226 length += 16;
1227 *value = 0; /* FIXME */
1228 break;
1229
1230 case LF_VARSTRING:
1231 length += 2 + *leaf;
1232 *value = 0; /* FIXME */
1233 break;
1234
1235 default:
1236 DEBUG_Printf( DBG_CHN_MESG, "Unknown numeric leaf type %04x\n", type );
1237 *value = 0;
1238 break;
1239 }
1240 }
1241
1242 return length;
1243 }
1244
1245 static char *
1246 terminate_string( unsigned char *name )
1247 {
1248 static char symname[256];
1249
1250 int namelen = name[0];
1251 assert( namelen >= 0 && namelen < 256 );
1252
1253 memcpy( symname, name+1, namelen );
1254 symname[namelen] = '\0';
1255
1256 if ( !*symname || strcmp( symname, "__unnamed" ) == 0 )
1257 return NULL;
1258 else
1259 return symname;
1260 }
1261
1262 static
1263 struct datatype * DEBUG_GetCVType(unsigned int typeno)
1264 {
1265 struct datatype * dt = NULL;
1266
1267 /*
1268 * Convert Codeview type numbers into something we can grok internally.
1269 * Numbers < 0x1000 are all fixed builtin types. Numbers from 0x1000 and
1270 * up are all user defined (structs, etc).
1271 */
1272 if ( typeno < 0x1000 )
1273 {
1274 if ( typeno < MAX_BUILTIN_TYPES )
1275 dt = cv_basic_types[typeno];
1276 }
1277 else
1278 {
1279 if ( typeno - 0x1000 < num_cv_defined_types )
1280 dt = cv_defined_types[typeno - 0x1000];
1281 }
1282
1283 return dt;
1284 }
1285
1286 static int
1287 DEBUG_AddCVType( unsigned int typeno, struct datatype *dt )
1288 {
1289 while ( typeno - 0x1000 >= num_cv_defined_types )
1290 {
1291 num_cv_defined_types += 0x100;
1292 cv_defined_types = (struct datatype **)
1293 DBG_realloc( cv_defined_types,
1294 num_cv_defined_types * sizeof(struct datatype *) );
1295
1296 memset( cv_defined_types + num_cv_defined_types - 0x100,
1297 0,
1298 0x100 * sizeof(struct datatype *) );
1299
1300 if ( cv_defined_types == NULL )
1301 return FALSE;
1302 }
1303
1304 cv_defined_types[ typeno - 0x1000 ] = dt;
1305 return TRUE;
1306 }
1307
1308 static void
1309 DEBUG_ClearTypeTable( void )
1310 {
1311 if ( cv_defined_types )
1312 DBG_free( cv_defined_types );
1313
1314 cv_defined_types = NULL;
1315 num_cv_defined_types = 0;
1316 }
1317
1318 static int
1319 DEBUG_AddCVType_Pointer( unsigned int typeno, unsigned int datatype )
1320 {
1321 struct datatype *dt =
1322 DEBUG_FindOrMakePointerType( DEBUG_GetCVType( datatype ) );
1323
1324 return DEBUG_AddCVType( typeno, dt );
1325 }
1326
1327 static int
1328 DEBUG_AddCVType_Array( unsigned int typeno, char *name,
1329 unsigned int elemtype, unsigned int arr_len )
1330 {
1331 struct datatype *dt = DEBUG_NewDataType( DT_ARRAY, name );
1332 struct datatype *elem = DEBUG_GetCVType( elemtype );
1333 unsigned int elem_size = elem? DEBUG_GetObjectSize( elem ) : 0;
1334 unsigned int arr_max = elem_size? arr_len / elem_size : 0;
1335
1336 DEBUG_SetArrayParams( dt, 0, arr_max, elem );
1337 return DEBUG_AddCVType( typeno, dt );
1338 }
1339
1340 static int
1341 DEBUG_AddCVType_Bitfield( unsigned int typeno,
1342 unsigned int bitoff, unsigned int nbits,
1343 unsigned int basetype )
1344 {
1345 struct datatype *dt = DEBUG_NewDataType( DT_BITFIELD, NULL );
1346 struct datatype *base = DEBUG_GetCVType( basetype );
1347
1348 DEBUG_SetBitfieldParams( dt, bitoff, nbits, base );
1349 return DEBUG_AddCVType( typeno, dt );
1350 }
1351
1352 static int
1353 DEBUG_AddCVType_EnumFieldList( unsigned int typeno, unsigned char *list, int len )
1354 {
1355 struct datatype *dt = DEBUG_NewDataType( DT_ENUM, NULL );
1356 unsigned char *ptr = list;
1357
1358 while ( ptr - list < len )
1359 {
1360 union codeview_fieldtype *type = (union codeview_fieldtype *)ptr;
1361
1362 if ( *ptr >= 0xf0 ) /* LF_PAD... */
1363 {
1364 ptr += *ptr & 0x0f;
1365 continue;
1366 }
1367
1368 switch ( type->generic.id )
1369 {
1370 case LF_ENUMERATE:
1371 {
1372 int value, vlen = numeric_leaf( &value, &type->enumerate.value );
1373 unsigned char *name = (unsigned char *)&type->enumerate.value + vlen;
1374
1375 DEBUG_AddStructElement( dt, terminate_string( name ),
1376 NULL, value, 0 );
1377
1378 ptr += 2 + 2 + vlen + (1 + name[0]);
1379 break;
1380 }
1381
1382 default:
1383 DEBUG_Printf( DBG_CHN_MESG, "Unhandled type %04x in ENUM field list\n",
1384 type->generic.id );
1385 return FALSE;
1386 }
1387 }
1388
1389 return DEBUG_AddCVType( typeno, dt );
1390 }
1391
1392 static int
1393 DEBUG_AddCVType_StructFieldList( unsigned int typeno, unsigned char *list, int len )
1394 {
1395 struct datatype *dt = DEBUG_NewDataType( DT_STRUCT, NULL );
1396 unsigned char *ptr = list;
1397
1398 while ( ptr - list < len )
1399 {
1400 union codeview_fieldtype *type = (union codeview_fieldtype *)ptr;
1401
1402 if ( *ptr >= 0xf0 ) /* LF_PAD... */
1403 {
1404 ptr += *ptr & 0x0f;
1405 continue;
1406 }
1407
1408 switch ( type->generic.id )
1409 {
1410 case LF_BCLASS:
1411 {
1412 int offset, olen = numeric_leaf( &offset, &type->bclass.offset );
1413
1414 /* FIXME: ignored for now */
1415
1416 ptr += 2 + 2 + 2 + olen;
1417 break;
1418 }
1419
1420 case LF_BCLASS_32:
1421 {
1422 int offset, olen = numeric_leaf( &offset, &type->bclass32.offset );
1423
1424 /* FIXME: ignored for now */
1425
1426 ptr += 2 + 2 + 4 + olen;
1427 break;
1428 }
1429
1430 case LF_VBCLASS:
1431 case LF_IVBCLASS:
1432 {
1433 int vbpoff, vbplen = numeric_leaf( &vbpoff, &type->vbclass.vbpoff );
1434 unsigned short int *p_vboff = (unsigned short int *)((char *)&type->vbclass.vbpoff + vbpoff);
1435 int vpoff, vplen = numeric_leaf( &vpoff, p_vboff );
1436
1437 /* FIXME: ignored for now */
1438
1439 ptr += 2 + 2 + 2 + 2 + vbplen + vplen;
1440 break;
1441 }
1442
1443 case LF_VBCLASS_32:
1444 case LF_IVBCLASS_32:
1445 {
1446 int vbpoff, vbplen = numeric_leaf( &vbpoff, &type->vbclass32.vbpoff );
1447 unsigned short int *p_vboff = (unsigned short int *)((char *)&type->vbclass32.vbpoff + vbpoff);
1448 int vpoff, vplen = numeric_leaf( &vpoff, p_vboff );
1449
1450 /* FIXME: ignored for now */
1451
1452 ptr += 2 + 2 + 4 + 4 + vbplen + vplen;
1453 break;
1454 }
1455
1456 case LF_MEMBER:
1457 {
1458 int offset, olen = numeric_leaf( &offset, &type->member.offset );
1459 unsigned char *name = (unsigned char *)&type->member.offset + olen;
1460
1461 struct datatype *subtype = DEBUG_GetCVType( type->member.type );
1462 int elem_size = subtype? DEBUG_GetObjectSize( subtype ) : 0;
1463
1464 DEBUG_AddStructElement( dt, terminate_string( name ),
1465 subtype, offset << 3, elem_size << 3 );
1466
1467 ptr += 2 + 2 + 2 + olen + (1 + name[0]);
1468 break;
1469 }
1470
1471 case LF_MEMBER_32:
1472 {
1473 int offset, olen = numeric_leaf( &offset, &type->member32.offset );
1474 unsigned char *name = (unsigned char *)&type->member32.offset + olen;
1475
1476 struct datatype *subtype = DEBUG_GetCVType( type->member32.type );
1477 int elem_size = subtype? DEBUG_GetObjectSize( subtype ) : 0;
1478
1479 DEBUG_AddStructElement( dt, terminate_string( name ),
1480 subtype, offset << 3, elem_size << 3 );
1481
1482 ptr += 2 + 2 + 4 + olen + (1 + name[0]);
1483 break;
1484 }
1485
1486 case LF_STMEMBER:
1487 /* FIXME: ignored for now */
1488 ptr += 2 + 2 + 2 + (1 + type->stmember.name[0]);
1489 break;
1490
1491 case LF_STMEMBER_32:
1492 /* FIXME: ignored for now */
1493 ptr += 2 + 4 + 2 + (1 + type->stmember32.name[0]);
1494 break;
1495
1496 case LF_METHOD:
1497 /* FIXME: ignored for now */
1498 ptr += 2 + 2 + 2 + (1 + type->method.name[0]);
1499 break;
1500
1501 case LF_METHOD_32:
1502 /* FIXME: ignored for now */
1503 ptr += 2 + 2 + 4 + (1 + type->method32.name[0]);
1504 break;
1505
1506 case LF_NESTTYPE:
1507 /* FIXME: ignored for now */
1508 ptr += 2 + 2 + (1 + type->nesttype.name[0]);
1509 break;
1510
1511 case LF_NESTTYPE_32:
1512 /* FIXME: ignored for now */
1513 ptr += 2 + 2 + 4 + (1 + type->nesttype32.name[0]);
1514 break;
1515
1516 case LF_VFUNCTAB:
1517 /* FIXME: ignored for now */
1518 ptr += 2 + 2;
1519 break;
1520
1521 case LF_VFUNCTAB_32:
1522 /* FIXME: ignored for now */
1523 ptr += 2 + 2 + 4;
1524 break;
1525
1526 case LF_ONEMETHOD:
1527 /* FIXME: ignored for now */
1528 switch ( (type->onemethod.attribute >> 2) & 7 )
1529 {
1530 case 4: case 6: /* (pure) introducing virtual method */
1531 ptr += 2 + 2 + 2 + 4 + (1 + type->onemethod_virt.name[0]);
1532 break;
1533
1534 default:
1535 ptr += 2 + 2 + 2 + (1 + type->onemethod.name[0]);
1536 break;
1537 }
1538 break;
1539
1540 case LF_ONEMETHOD_32:
1541 /* FIXME: ignored for now */
1542 switch ( (type->onemethod32.attribute >> 2) & 7 )
1543 {
1544 case 4: case 6: /* (pure) introducing virtual method */
1545 ptr += 2 + 2 + 4 + 4 + (1 + type->onemethod32_virt.name[0]);
1546 break;
1547
1548 default:
1549 ptr += 2 + 2 + 4 + (1 + type->onemethod32.name[0]);
1550 break;
1551 }
1552 break;
1553
1554 default:
1555 DEBUG_Printf( DBG_CHN_MESG, "Unhandled type %04x in STRUCT field list\n",
1556 type->generic.id );
1557 return FALSE;
1558 }
1559 }
1560
1561 return DEBUG_AddCVType( typeno, dt );
1562 }
1563
1564 static int
1565 DEBUG_AddCVType_Enum( unsigned int typeno, char *name, unsigned int fieldlist )
1566 {
1567 struct datatype *dt = DEBUG_NewDataType( DT_ENUM, name );
1568 struct datatype *list = DEBUG_GetCVType( fieldlist );
1569
1570 if ( list )
1571 DEBUG_CopyFieldlist( dt, list );
1572
1573 return DEBUG_AddCVType( typeno, dt );
1574 }
1575
1576 static int
1577 DEBUG_AddCVType_Struct( unsigned int typeno, char *name, int structlen, unsigned int fieldlist )
1578 {
1579 struct datatype *dt = DEBUG_NewDataType( DT_STRUCT, name );
1580 struct datatype *list = DEBUG_GetCVType( fieldlist );
1581
1582 if ( list )
1583 {
1584 DEBUG_SetStructSize( dt, structlen );
1585 DEBUG_CopyFieldlist( dt, list );
1586 }
1587
1588 return DEBUG_AddCVType( typeno, dt );
1589 }
1590
1591 static int
1592 DEBUG_ParseTypeTable( char *table, int len )
1593 {
1594 unsigned int curr_type = 0x1000;
1595 char *ptr = table;
1596
1597 while ( ptr - table < len )
1598 {
1599 union codeview_type *type = (union codeview_type *) ptr;
1600 int retv = TRUE;
1601
1602 switch ( type->generic.id )
1603 {
1604 case LF_POINTER:
1605 retv = DEBUG_AddCVType_Pointer( curr_type, type->pointer.datatype );
1606 break;
1607 case LF_POINTER_32:
1608 retv = DEBUG_AddCVType_Pointer( curr_type, type->pointer32.datatype );
1609 break;
1610
1611 case LF_ARRAY:
1612 {
1613 int arrlen, alen = numeric_leaf( &arrlen, &type->array.arrlen );
1614 unsigned char *name = (unsigned char *)&type->array.arrlen + alen;
1615
1616 retv = DEBUG_AddCVType_Array( curr_type, terminate_string( name ),
1617 type->array.elemtype, arrlen );
1618 break;
1619 }
1620 case LF_ARRAY_32:
1621 {
1622 int arrlen, alen = numeric_leaf( &arrlen, &type->array32.arrlen );
1623 unsigned char *name = (unsigned char *)&type->array32.arrlen + alen;
1624
1625 retv = DEBUG_AddCVType_Array( curr_type, terminate_string( name ),
1626 type->array32.elemtype, type->array32.arrlen );
1627 break;
1628 }
1629
1630 case LF_BITFIELD:
1631 retv = DEBUG_AddCVType_Bitfield( curr_type, type->bitfield.bitoff,
1632 type->bitfield.nbits,
1633 type->bitfield.type );
1634 break;
1635 case LF_BITFIELD_32:
1636 retv = DEBUG_AddCVType_Bitfield( curr_type, type->bitfield32.bitoff,
1637 type->bitfield32.nbits,
1638 type->bitfield32.type );
1639 break;
1640
1641 case LF_FIELDLIST:
1642 case LF_FIELDLIST_32:
1643 {
1644 /*
1645 * A 'field list' is a CodeView-specific data type which doesn't
1646 * directly correspond to any high-level data type. It is used
1647 * to hold the collection of members of a struct, class, union
1648 * or enum type. The actual definition of that type will follow
1649 * later, and refer to the field list definition record.
1650 *
1651 * As we don't have a field list type ourselves, we look ahead
1652 * in the field list to try to find out whether this field list
1653 * will be used for an enum or struct type, and create a dummy
1654 * type of the corresponding sort. Later on, the definition of
1655 * the 'real' type will copy the member / enumeration data.
1656 */
1657
1658 char *list = type->fieldlist.list;
1659 int len = (ptr + type->generic.len + 2) - list;
1660
1661 if ( ((union codeview_fieldtype *)list)->generic.id == LF_ENUMERATE )
1662 retv = DEBUG_AddCVType_EnumFieldList( curr_type, list, len );
1663 else
1664 retv = DEBUG_AddCVType_StructFieldList( curr_type, list, len );
1665 break;
1666 }
1667
1668 case LF_STRUCTURE:
1669 case LF_CLASS:
1670 {
1671 int structlen, slen = numeric_leaf( &structlen, &type->structure.structlen );
1672 unsigned char *name = (unsigned char *)&type->structure.structlen + slen;
1673
1674 retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ),
1675 structlen, type->structure.fieldlist );
1676 break;
1677 }
1678 case LF_STRUCTURE_32:
1679 case LF_CLASS_32:
1680 {
1681 int structlen, slen = numeric_leaf( &structlen, &type->structure32.structlen );
1682 unsigned char *name = (unsigned char *)&type->structure32.structlen + slen;
1683
1684 retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ),
1685 structlen, type->structure32.fieldlist );
1686 break;
1687 }
1688
1689 case LF_UNION:
1690 {
1691 int un_len, ulen = numeric_leaf( &un_len, &type->t_union.un_len );
1692 unsigned char *name = (unsigned char *)&type->t_union.un_len + ulen;
1693
1694 retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ),
1695 un_len, type->t_union.fieldlist );
1696 break;
1697 }
1698 case LF_UNION_32:
1699 {
1700 int un_len, ulen = numeric_leaf( &un_len, &type->t_union32.un_len );
1701 unsigned char *name = (unsigned char *)&type->t_union32.un_len + ulen;
1702
1703 retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ),
1704 un_len, type->t_union32.fieldlist );
1705 break;
1706 }
1707
1708 case LF_ENUM:
1709 retv = DEBUG_AddCVType_Enum( curr_type, terminate_string( type->enumeration.name ),
1710 type->enumeration.field );
1711 break;
1712 case LF_ENUM_32:
1713 retv = DEBUG_AddCVType_Enum( curr_type, terminate_string( type->enumeration32.name ),
1714 type->enumeration32.field );
1715 break;
1716
1717 default:
1718 break;
1719 }
1720
1721 if ( !retv )
1722 return FALSE;
1723
1724 curr_type++;
1725 ptr += type->generic.len + 2;
1726 }
1727
1728 return TRUE;
1729 }
1730
1731
1732 /*========================================================================
1733 * Process CodeView line number information.
1734 */
1735
1736 union any_size
1737 {
1738 char * c;
1739 short * s;
1740 int * i;
1741 unsigned int * ui;
1742 };
1743
1744 struct startend
1745 {
1746 unsigned int start;
1747 unsigned int end;
1748 };
1749
1750 struct codeview_linetab_hdr
1751 {
1752 unsigned int nline;
1753 unsigned int segno;
1754 unsigned int start;
1755 unsigned int end;
1756 char * sourcefile;
1757 unsigned short * linetab;
1758 unsigned int * offtab;
1759 };
1760
1761 static struct codeview_linetab_hdr *
1762 DEBUG_SnarfLinetab(char * linetab,
1763 int size)
1764 {
1765 int file_segcount;
1766 char filename[PATH_MAX];
1767 unsigned int * filetab;
1768 char * fn;
1769 int i;
1770 int k;
1771 struct codeview_linetab_hdr * lt_hdr;
1772 unsigned int * lt_ptr;
1773 int nfile;
1774 int nseg;
1775 union any_size pnt;
1776 union any_size pnt2;
1777 struct startend * start;
1778 int this_seg;
1779
1780 /*
1781 * Now get the important bits.
1782 */
1783 pnt.c = linetab;
1784 nfile = *pnt.s++;
1785 nseg = *pnt.s++;
1786
1787 filetab = (unsigned int *) pnt.c;
1788
1789 /*
1790 * Now count up the number of segments in the file.
1791 */
1792 nseg = 0;
1793 for(i=0; i<nfile; i++)
1794 {
1795 pnt2.c = linetab + filetab[i];
1796 nseg += *pnt2.s;
1797 }
1798
1799 /*
1800 * Next allocate the header we will be returning.
1801 * There is one header for each segment, so that we can reach in
1802 * and pull bits as required.
1803 */
1804 lt_hdr = (struct codeview_linetab_hdr *)
1805 DBG_alloc((nseg + 1) * sizeof(*lt_hdr));
1806 if( lt_hdr == NULL )
1807 {
1808 goto leave;
1809 }
1810
1811 memset(lt_hdr, 0, sizeof(*lt_hdr) * (nseg+1));
1812
1813 /*
1814 * Now fill the header we will be returning, one for each segment.
1815 * Note that this will basically just contain pointers into the existing
1816 * line table, and we do not actually copy any additional information
1817 * or allocate any additional memory.
1818 */
1819
1820 this_seg = 0;
1821 for(i=0; i<nfile; i++)
1822 {
1823 /*
1824 * Get the pointer into the segment information.
1825 */
1826 pnt2.c = linetab + filetab[i];
1827 file_segcount = *pnt2.s;
1828
1829 pnt2.ui++;
1830 lt_ptr = (unsigned int *) pnt2.c;
1831 start = (struct startend *) (lt_ptr + file_segcount);
1832
1833 /*
1834 * Now snarf the filename for all of the segments for this file.
1835 */
1836 fn = (unsigned char *) (start + file_segcount);
1837 memset(filename, 0, sizeof(filename));
1838 memcpy(filename, fn + 1, *fn);
1839 fn = DBG_strdup(filename);
1840
1841 for(k = 0; k < file_segcount; k++, this_seg++)
1842 {
1843 pnt2.c = linetab + lt_ptr[k];
1844 lt_hdr[this_seg].start = start[k].start;
1845 lt_hdr[this_seg].end = start[k].end;
1846 lt_hdr[this_seg].sourcefile = fn;
1847 lt_hdr[this_seg].segno = *pnt2.s++;
1848 lt_hdr[this_seg].nline = *pnt2.s++;
1849 lt_hdr[this_seg].offtab = pnt2.ui;
1850 lt_hdr[this_seg].linetab = (unsigned short *)
1851 (pnt2.ui + lt_hdr[this_seg].nline);
1852 }
1853 }
1854
1855 leave:
1856
1857 return lt_hdr;
1858
1859 }
1860
1861
1862 /*========================================================================
1863 * Process CodeView symbol information.
1864 */
1865
1866 union codeview_symbol
1867 {
1868 struct
1869 {
1870 short int len;
1871 short int id;
1872 } generic;
1873
1874 struct
1875 {
1876 short int len;
1877 short int id;
1878 unsigned int offset;
1879 unsigned short seg;
1880 unsigned short symtype;
1881 unsigned char namelen;
1882 unsigned char name[1];
1883 } data;
1884
1885 struct
1886 {
1887 short int len;
1888 short int id;
1889 unsigned int symtype;
1890 unsigned int offset;
1891 unsigned short seg;
1892 unsigned char namelen;
1893 unsigned char name[1];
1894 } data32;
1895
1896 struct
1897 {
1898 short int len;
1899 short int id;
1900 unsigned int pparent;
1901 unsigned int pend;
1902 unsigned int next;
1903 unsigned int offset;
1904 unsigned short segment;
1905 unsigned short thunk_len;
1906 unsigned char thtype;
1907 unsigned char namelen;
1908 unsigned char name[1];
1909 } thunk;
1910
1911 struct
1912 {
1913 short int len;
1914 short int id;
1915 unsigned int pparent;
1916 unsigned int pend;
1917 unsigned int next;
1918 unsigned int proc_len;
1919 unsigned int debug_start;
1920 unsigned int debug_end;
1921 unsigned int offset;
1922 unsigned short segment;
1923 unsigned short proctype;
1924 unsigned char flags;
1925 unsigned char namelen;
1926 unsigned char name[1];
1927 } proc;
1928
1929 struct
1930 {
1931 short int len;
1932 short int id;
1933 unsigned int pparent;
1934 unsigned int pend;
1935 unsigned int next;
1936 unsigned int proc_len;
1937 unsigned int debug_start;
1938 unsigned int debug_end;
1939 unsigned int proctype;
1940 unsigned int offset;
1941 unsigned short segment;
1942 unsigned char flags;
1943 unsigned char namelen;
1944 unsigned char name[1];
1945 } proc32;
1946
1947 struct
1948 {
1949 short int len; /* Total length of this entry */
1950 short int id; /* Always S_BPREL32 */
1951 unsigned int offset; /* Stack offset relative to BP */
1952 unsigned short symtype;
1953 unsigned char namelen;
1954 unsigned char name[1];
1955 } stack;
1956
1957 struct
1958 {
1959 short int len; /* Total length of this entry */
1960 short int id; /* Always S_BPREL32 */
1961 unsigned int offset; /* Stack offset relative to BP */
1962 unsigned int symtype;
1963 unsigned char namelen;
1964 unsigned char name[1];
1965 } stack32;
1966
1967 };
1968
1969 #define S_COMPILE 0x0001
1970 #define S_REGISTER 0x0002
1971 #define S_CONSTANT 0x0003
1972 #define S_UDT 0x0004
1973 #define S_SSEARCH 0x0005
1974 #define S_END 0x0006
1975 #define S_SKIP 0x0007
1976 #define S_CVRESERVE 0x0008
1977 #define S_OBJNAME 0x0009
1978 #define S_ENDARG 0x000a
1979 #define S_COBOLUDT 0x000b
1980 #define S_MANYREG 0x000c
1981 #define S_RETURN 0x000d
1982 #define S_ENTRYTHIS 0x000e
1983
1984 #define S_BPREL 0x0200
1985 #define S_LDATA 0x0201
1986 #define S_GDATA 0x0202
1987 #define S_PUB 0x0203
1988 #define S_LPROC 0x0204
1989 #define S_GPROC 0x0205
1990 #define S_THUNK 0x0206
1991 #define S_BLOCK 0x0207
1992 #define S_WITH 0x0208
1993 #define S_LABEL 0x0209
1994 #define S_CEXMODEL 0x020a
1995 #define S_VFTPATH 0x020b
1996 #define S_REGREL 0x020c
1997 #define S_LTHREAD 0x020d
1998 #define S_GTHREAD 0x020e
1999
2000 #define S_PROCREF 0x0400
2001 #define S_DATAREF 0x0401
2002 #define S_ALIGN 0x0402
2003 #define S_LPROCREF 0x0403
2004
2005 #define S_REGISTER_32 0x1001 /* Variants with new 32-bit type indices */
2006 #define S_CONSTANT_32 0x1002
2007 #define S_UDT_32 0x1003
2008 #define S_COBOLUDT_32 0x1004
2009 #define S_MANYREG_32 0x1005
2010
2011 #define S_BPREL_32 0x1006
2012 #define S_LDATA_32 0x1007
2013 #define S_GDATA_32 0x1008
2014 #define S_PUB_32 0x1009
2015 #define S_LPROC_32 0x100a
2016 #define S_GPROC_32 0x100b
2017 #define S_VFTTABLE_32 0x100c
2018 #define S_REGREL_32 0x100d
2019 #define S_LTHREAD_32 0x100e
2020 #define S_GTHREAD_32 0x100f
2021
2022
2023
2024 static unsigned int
2025 DEBUG_MapCVOffset( DBG_MODULE *module, unsigned int offset )
2026 {
2027 int nomap = module->msc_info->nomap;
2028 OMAP_DATA *omapp = module->msc_info->omapp;
2029 int i;
2030
2031 if ( !nomap || !omapp )
2032 return offset;
2033
2034 /* FIXME: use binary search */
2035 for ( i = 0; i < nomap-1; i++ )
2036 if ( omapp[i].from <= offset && omapp[i+1].from > offset )
2037 return !omapp[i].to? 0 : omapp[i].to + (offset - omapp[i].from);
2038
2039 return 0;
2040 }
2041
2042 static struct name_hash *
2043 DEBUG_AddCVSymbol( DBG_MODULE *module, char *name, int namelen,
2044 int type, int seg, int offset, int size, int cookie, int flags,
2045 struct codeview_linetab_hdr *linetab )
2046 {
2047 int nsect = module->msc_info->nsect;
2048 PIMAGE_SECTION_HEADER sectp = module->msc_info->sectp;
2049
2050 struct name_hash *symbol;
2051 char symname[PATH_MAX];
2052 DBG_VALUE value;
2053
2054 /*
2055 * Some sanity checks
2056 */
2057
2058 if ( !name || !namelen )
2059 return NULL;
2060
2061 if ( !seg || seg > nsect )
2062 return NULL;
2063
2064 /*
2065 * Convert type, address, and symbol name
2066 */
2067 value.type = type? DEBUG_GetCVType( type ) : NULL;
2068 value.cookie = cookie;
2069
2070 value.addr.seg = 0;
2071 value.addr.off = (unsigned int) module->load_addr +
2072 DEBUG_MapCVOffset( module, sectp[seg-1].VirtualAddress + offset );
2073
2074 memcpy( symname, name, namelen );
2075 symname[namelen] = '\0';
2076
2077
2078 /*
2079 * Check whether we have line number information
2080 */
2081 if ( linetab )
2082 {
2083 for ( ; linetab->linetab; linetab++ )
2084 if ( linetab->segno == seg
2085 && linetab->start <= offset
2086 && linetab->end > offset )
2087 break;
2088
2089 if ( !linetab->linetab )
2090 linetab = NULL;
2091 }
2092
2093
2094 /*
2095 * Create Wine symbol record
2096 */
2097 symbol = DEBUG_AddSymbol( symname, &value,
2098 linetab? linetab->sourcefile : NULL, flags );
2099
2100 if ( size )
2101 DEBUG_SetSymbolSize( symbol, size );
2102
2103
2104 /*
2105 * Add line numbers if found
2106 */
2107 if ( linetab )
2108 {
2109 int i;
2110 for ( i = 0; i < linetab->nline; i++ )
2111 if ( linetab->offtab[i] >= offset
2112 && linetab->offtab[i] < offset + size )
2113 {
2114 DEBUG_AddLineNumber( symbol, linetab->linetab[i],
2115 linetab->offtab[i] - offset );
2116 }
2117 }
2118
2119 return symbol;
2120 }
2121
2122 static struct wine_locals *
2123 DEBUG_AddCVLocal( struct name_hash *func, char *name, int namelen,
2124 int type, int offset )
2125 {
2126 struct wine_locals *local;
2127 char symname[PATH_MAX];
2128
2129 memcpy( symname, name, namelen );
2130 symname[namelen] = '\0';
2131
2132 local = DEBUG_AddLocal( func, 0, offset, 0, 0, symname );
2133 DEBUG_SetLocalSymbolType( local, DEBUG_GetCVType( type ) );
2134
2135 return local;
2136 }
2137
2138 static int
2139 DEBUG_SnarfCodeView( DBG_MODULE *module, LPBYTE root, int offset, int size,
2140 struct codeview_linetab_hdr *linetab )
2141 {
2142 struct name_hash *curr_func = NULL;
2143 int i, length;
2144
2145
2146 /*
2147 * Loop over the different types of records and whenever we
2148 * find something we are interested in, record it and move on.
2149 */
2150 for ( i = offset; i < size; i += length )
2151 {
2152 union codeview_symbol *sym = (union codeview_symbol *)(root + i);
2153 length = sym->generic.len + 2;
2154
2155 switch ( sym->generic.id )
2156 {
2157 /*
2158 * Global and local data symbols. We don't associate these
2159 * with any given source file.
2160 */
2161 case S_GDATA:
2162 case S_LDATA:
2163 case S_PUB:
2164 DEBUG_AddCVSymbol( module, sym->data.name, sym->data.namelen,
2165 sym->data.symtype, sym->data.seg,
2166 sym->data.offset, 0,
2167 DV_TARGET, SYM_WIN32 | SYM_DATA, NULL );
2168 break;
2169 case S_GDATA_32:
2170 case S_LDATA_32:
2171 case S_PUB_32:
2172 DEBUG_AddCVSymbol( module, sym->data32.name, sym->data32.namelen,
2173 sym->data32.symtype, sym->data32.seg,
2174 sym->data32.offset, 0,
2175 DV_TARGET, SYM_WIN32 | SYM_DATA, NULL );
2176 break;
2177
2178 /*
2179 * Sort of like a global function, but it just points
2180 * to a thunk, which is a stupid name for what amounts to
2181 * a PLT slot in the normal jargon that everyone else uses.
2182 */
2183 case S_THUNK:
2184 DEBUG_AddCVSymbol( module, sym->thunk.name, sym->thunk.namelen,
2185 0, sym->thunk.segment,
2186 sym->thunk.offset, sym->thunk.thunk_len,
2187 DV_TARGET, SYM_WIN32 | SYM_FUNC, NULL );
2188 break;
2189
2190 /*
2191 * Global and static functions.
2192 */
2193 case S_GPROC:
2194 case S_LPROC:
2195 DEBUG_Normalize( curr_func );
2196
2197 curr_func = DEBUG_AddCVSymbol( module, sym->proc.name, sym->proc.namelen,
2198 sym->proc.proctype, sym->proc.segment,
2199 sym->proc.offset, sym->proc.proc_len,
2200 DV_TARGET, SYM_WIN32 | SYM_FUNC, linetab );
2201
2202 DEBUG_SetSymbolBPOff( curr_func, sym->proc.debug_start );
2203 break;
2204 case S_GPROC_32:
2205 case S_LPROC_32:
2206 DEBUG_Normalize( curr_func );
2207
2208 curr_func = DEBUG_AddCVSymbol( module, sym->proc32.name, sym->proc32.namelen,
2209 sym->proc32.proctype, sym->proc32.segment,
2210 sym->proc32.offset, sym->proc32.proc_len,
2211 DV_TARGET, SYM_WIN32 | SYM_FUNC, linetab );
2212
2213 DEBUG_SetSymbolBPOff( curr_func, sym->proc32.debug_start );
2214 break;
2215
2216
2217 /*
2218 * Function parameters and stack variables.
2219 */
2220 case S_BPREL:
2221 DEBUG_AddCVLocal( curr_func, sym->stack.name, sym->stack.namelen,
2222 sym->stack.symtype, sym->stack.offset );
2223 break;
2224 case S_BPREL_32:
2225 DEBUG_AddCVLocal( curr_func, sym->stack32.name, sym->stack32.namelen,
2226 sym->stack32.symtype, sym->stack32.offset );
2227 break;
2228
2229
2230 /*
2231 * These are special, in that they are always followed by an
2232 * additional length-prefixed string which is *not* included
2233 * into the symbol length count. We need to skip it.
2234 */
2235 case S_PROCREF:
2236 case S_DATAREF:
2237 case S_LPROCREF:
2238 {
2239 LPBYTE name = (LPBYTE)sym + length;
2240 length += (*name + 1 + 3) & ~3;
2241 break;
2242 }
2243 }
2244 }
2245
2246 DEBUG_Normalize( curr_func );
2247
2248 if ( linetab ) DBG_free(linetab);
2249 return TRUE;
2250 }
2251
2252
2253
2254 /*========================================================================
2255 * Process PDB file.
2256 */
2257
2258 #pragma pack(1)
2259 typedef struct _PDB_FILE
2260 {
2261 DWORD size;
2262 DWORD unknown;
2263
2264 } PDB_FILE, *PPDB_FILE;
2265
2266 typedef struct _PDB_HEADER
2267 {
2268 CHAR ident[40];
2269 DWORD signature;
2270 DWORD blocksize;
2271 WORD freelist;
2272 WORD total_alloc;
2273 PDB_FILE toc;
2274 WORD toc_block[ 1 ];
2275
2276 } PDB_HEADER, *PPDB_HEADER;
2277
2278 typedef struct _PDB_TOC
2279 {
2280 DWORD nFiles;
2281 PDB_FILE file[ 1 ];
2282
2283 } PDB_TOC, *PPDB_TOC;
2284
2285 typedef struct _PDB_ROOT
2286 {
2287 DWORD version;
2288 DWORD TimeDateStamp;
2289 DWORD unknown;
2290 DWORD cbNames;
2291 CHAR names[ 1 ];
2292
2293 } PDB_ROOT, *PPDB_ROOT;
2294
2295 typedef struct _PDB_TYPES_OLD
2296 {
2297 DWORD version;
2298 WORD first_index;
2299 WORD last_index;
2300 DWORD type_size;
2301 WORD file;
2302 WORD pad;
2303
2304 } PDB_TYPES_OLD, *PPDB_TYPES_OLD;
2305
2306 typedef struct _PDB_TYPES
2307 {
2308 DWORD version;
2309 DWORD type_offset;
2310 DWORD first_index;
2311 DWORD last_index;
2312 DWORD type_size;
2313 WORD file;
2314 WORD pad;
2315 DWORD hash_size;
2316 DWORD hash_base;
2317 DWORD hash_offset;
2318 DWORD hash_len;
2319 DWORD search_offset;
2320 DWORD search_len;
2321 DWORD unknown_offset;
2322 DWORD unknown_len;
2323
2324 } PDB_TYPES, *PPDB_TYPES;
2325
2326 typedef struct _PDB_SYMBOL_RANGE
2327 {
2328 WORD segment;
2329 WORD pad1;
2330 DWORD offset;
2331 DWORD size;
2332 DWORD characteristics;
2333 WORD index;
2334 WORD pad2;
2335
2336 } PDB_SYMBOL_RANGE, *PPDB_SYMBOL_RANGE;
2337
2338 typedef struct _PDB_SYMBOL_RANGE_EX
2339 {
2340 WORD segment;
2341 WORD pad1;
2342 DWORD offset;
2343 DWORD size;
2344 DWORD characteristics;
2345 WORD index;
2346 WORD pad2;
2347 DWORD timestamp;
2348 DWORD unknown;
2349
2350 } PDB_SYMBOL_RANGE_EX, *PPDB_SYMBOL_RANGE_EX;
2351
2352 typedef struct _PDB_SYMBOL_FILE
2353 {
2354 DWORD unknown1;
2355 PDB_SYMBOL_RANGE range;
2356 WORD flag;
2357 WORD file;
2358 DWORD symbol_size;
2359 DWORD lineno_size;
2360 DWORD unknown2;
2361 DWORD nSrcFiles;
2362 DWORD attribute;
2363 CHAR filename[ 1 ];
2364
2365 } PDB_SYMBOL_FILE, *PPDB_SYMBOL_FILE;
2366
2367 typedef struct _PDB_SYMBOL_FILE_EX
2368 {
2369 DWORD unknown1;
2370 PDB_SYMBOL_RANGE_EX range;
2371 WORD flag;
2372 WORD file;
2373 DWORD symbol_size;
2374 DWORD lineno_size;
2375 DWORD unknown2;
2376 DWORD nSrcFiles;
2377 DWORD attribute;
2378 DWORD reserved[ 2 ];
2379 CHAR filename[ 1 ];
2380
2381 } PDB_SYMBOL_FILE_EX, *PPDB_SYMBOL_FILE_EX;
2382
2383 typedef struct _PDB_SYMBOL_SOURCE
2384 {
2385 WORD nModules;
2386 WORD nSrcFiles;
2387 WORD table[ 1 ];
2388
2389 } PDB_SYMBOL_SOURCE, *PPDB_SYMBOL_SOURCE;
2390
2391 typedef struct _PDB_SYMBOL_IMPORT
2392 {
2393 DWORD unknown1;
2394 DWORD unknown2;
2395 DWORD TimeDateStamp;
2396 DWORD nRequests;
2397 CHAR filename[ 1 ];
2398
2399 } PDB_SYMBOL_IMPORT, *PPDB_SYMBOL_IMPORT;
2400
2401 typedef struct _PDB_SYMBOLS_OLD
2402 {
2403 WORD hash1_file;
2404 WORD hash2_file;
2405 WORD gsym_file;
2406 WORD pad;
2407 DWORD module_size;
2408 DWORD offset_size;
2409 DWORD hash_size;
2410 DWORD srcmodule_size;
2411
2412 } PDB_SYMBOLS_OLD, *PPDB_SYMBOLS_OLD;
2413
2414 typedef struct _PDB_SYMBOLS
2415 {
2416 DWORD signature;
2417 DWORD version;
2418 DWORD unknown;
2419 DWORD hash1_file;
2420 DWORD hash2_file;
2421 DWORD gsym_file;
2422 DWORD module_size;
2423 DWORD offset_size;
2424 DWORD hash_size;
2425 DWORD srcmodule_size;
2426 DWORD pdbimport_size;
2427 DWORD resvd[ 5 ];
2428
2429 } PDB_SYMBOLS, *PPDB_SYMBOLS;
2430 #pragma pack()
2431
2432
2433 static void *pdb_read( LPBYTE image, WORD *block_list, int size )
2434 {
2435 PPDB_HEADER pdb = (PPDB_HEADER)image;
2436 int i, nBlocks;
2437 LPBYTE buffer;
2438
2439 if ( !size ) return NULL;
2440
2441 nBlocks = (size + pdb->blocksize-1) / pdb->blocksize;
2442 buffer = DBG_alloc( nBlocks * pdb->blocksize );
2443
2444 for ( i = 0; i < nBlocks; i++ )
2445 memcpy( buffer + i*pdb->blocksize,
2446 image + block_list[i]*pdb->blocksize, pdb->blocksize );
2447
2448 return buffer;
2449 }
2450
2451 static void *pdb_read_file( LPBYTE image, PPDB_TOC toc, int fileNr )
2452 {
2453 PPDB_HEADER pdb = (PPDB_HEADER)image;
2454 WORD *block_list;
2455 int i;
2456
2457 if ( !toc || fileNr >= toc->nFiles )
2458 return NULL;
2459
2460 block_list = (WORD *) &toc->file[ toc->nFiles ];
2461 for ( i = 0; i < fileNr; i++ )
2462 block_list += (toc->file[i].size + pdb->blocksize-1) / pdb->blocksize;
2463
2464 return pdb_read( image, block_list, toc->file[fileNr].size );
2465 }
2466
2467 static void pdb_free( void *buffer )
2468 {
2469 DBG_free( buffer );
2470 }
2471
2472 static void pdb_convert_types_header( PDB_TYPES *types, char *image )
2473 {
2474 memset( types, 0, sizeof(PDB_TYPES) );
2475 if ( !image ) return;
2476
2477 if ( *(DWORD *)image < 19960000 ) /* FIXME: correct version? */
2478 {
2479 /* Old version of the types record header */
2480 PDB_TYPES_OLD *old = (PDB_TYPES_OLD *)image;
2481 types->version = old->version;
2482 types->type_offset = sizeof(PDB_TYPES_OLD);
2483 types->type_size = old->type_size;
2484 types->first_index = old->first_index;
2485 types->last_index = old->last_index;
2486 types->file = old->file;
2487 }
2488 else
2489 {
2490 /* New version of the types record header */
2491 *types = *(PDB_TYPES *)image;
2492 }
2493 }
2494
2495 static void pdb_convert_symbols_header( PDB_SYMBOLS *symbols,
2496 int *header_size, char *image )
2497 {
2498 memset( symbols, 0, sizeof(PDB_SYMBOLS) );
2499 if ( !image ) return;
2500
2501 if ( *(DWORD *)image != 0xffffffff )
2502 {
2503 /* Old version of the symbols record header */
2504 PDB_SYMBOLS_OLD *old = (PDB_SYMBOLS_OLD *)image;
2505 symbols->version = 0;
2506 symbols->module_size = old->module_size;
2507 symbols->offset_size = old->offset_size;
2508 symbols->hash_size = old->hash_size;
2509 symbols->srcmodule_size = old->srcmodule_size;
2510 symbols->pdbimport_size = 0;
2511 symbols->hash1_file = old->hash1_file;
2512 symbols->hash2_file = old->hash2_file;
2513 symbols->gsym_file = old->gsym_file;
2514
2515 *header_size = sizeof(PDB_SYMBOLS_OLD);
2516 }
2517 else
2518 {
2519 /* New version of the symbols record header */
2520 *symbols = *(PDB_SYMBOLS *)image;
2521
2522 *header_size = sizeof(PDB_SYMBOLS);
2523 }
2524 }
2525
2526 static enum DbgInfoLoad DEBUG_ProcessPDBFile( DBG_MODULE *module,
2527 const char *filename, DWORD timestamp )
2528 {
2529 enum DbgInfoLoad dil = DIL_ERROR;
2530 HANDLE hFile, hMap;
2531 char *image = NULL;
2532 PDB_HEADER *pdb = NULL;
2533 PDB_TOC *toc = NULL;
2534 PDB_ROOT *root = NULL;
2535 char *types_image = NULL;
2536 char *symbols_image = NULL;
2537 PDB_TYPES types;
2538 PDB_SYMBOLS symbols;
2539 int header_size = 0;
2540 char *modimage, *file;
2541
2542 DEBUG_Printf( DBG_CHN_TRACE, "Processing PDB file %s\n", filename );
2543
2544 /*
2545 * Open and map() .PDB file
2546 */
2547 image = DEBUG_MapDebugInfoFile( filename, 0, 0, &hFile, &hMap );
2548 if ( !image )
2549 {
2550 DEBUG_Printf( DBG_CHN_ERR, "-Unable to peruse .PDB file %s\n", filename );
2551 goto leave;
2552 }
2553
2554 /*
2555 * Read in TOC and well-known files
2556 */
2557
2558 pdb = (PPDB_HEADER)image;
2559 toc = pdb_read( image, pdb->toc_block, pdb->toc.size );
2560 root = pdb_read_file( image, toc, 1 );
2561 types_image = pdb_read_file( image, toc, 2 );
2562 symbols_image = pdb_read_file( image, toc, 3 );
2563
2564 pdb_convert_types_header( &types, types_image );
2565 pdb_convert_symbols_header( &symbols, &header_size, symbols_image );
2566
2567 /*
2568 * Check for unknown versions
2569 */
2570
2571 switch ( root->version )
2572 {
2573 case 19950623: /* VC 4.0 */
2574 case 19950814:
2575 case 19960307: /* VC 5.0 */
2576 case 19970604: /* VC 6.0 */
2577 break;
2578 default:
2579 DEBUG_Printf( DBG_CHN_ERR, "-Unknown root block version %ld\n", root->version );
2580 }
2581
2582 switch ( types.version )
2583 {
2584 case 19950410: /* VC 4.0 */
2585 case 19951122:
2586 case 19961031: /* VC 5.0 / 6.0 */
2587 break;
2588 default:
2589 DEBUG_Printf( DBG_CHN_ERR, "-Unknown type info version %ld\n", types.version );
2590 }
2591
2592 switch ( symbols.version )
2593 {
2594 case 0: /* VC 4.0 */
2595 case 19960307: /* VC 5.0 */
2596 case 19970606: /* VC 6.0 */
2597 break;
2598 default:
2599 DEBUG_Printf( DBG_CHN_ERR, "-Unknown symbol info version %ld\n", symbols.version );
2600 }
2601
2602
2603 /*
2604 * Check .PDB time stamp
2605 */
2606
2607 if ( root->TimeDateStamp != timestamp )
2608 {
2609 DEBUG_Printf( DBG_CHN_ERR, "-Wrong time stamp of .PDB file %s (0x%08lx, 0x%08lx)\n",
2610 filename, root->TimeDateStamp, timestamp );
2611 }
2612
2613 /*
2614 * Read type table
2615 */
2616
2617 DEBUG_ParseTypeTable( types_image + types.type_offset, types.type_size );
2618
2619 /*
2620 * Read type-server .PDB imports
2621 */
2622
2623 if ( symbols.pdbimport_size )
2624 {
2625 /* FIXME */
2626 DEBUG_Printf(DBG_CHN_ERR, "-Type server .PDB imports ignored!\n" );
2627 }
2628
2629 /*
2630 * Read global symbol table
2631 */
2632
2633 modimage = pdb_read_file( image, toc, symbols.gsym_file );
2634 if ( modimage )
2635 {
2636 DEBUG_SnarfCodeView( module, modimage, 0,
2637 toc->file[symbols.gsym_file].size, NULL );
2638 pdb_free( modimage );
2639 }
2640
2641 /*
2642 * Read per-module symbol / linenumber tables
2643 */
2644
2645 file = symbols_image + header_size;
2646 while ( file - symbols_image < header_size + symbols.module_size )
2647 {
2648 int file_nr, file_index, symbol_size, lineno_size;
2649 char *file_name;
2650
2651 if ( symbols.version < 19970000 )
2652 {
2653 PDB_SYMBOL_FILE *sym_file = (PDB_SYMBOL_FILE *) file;
2654 file_nr = sym_file->file;
2655 file_name = sym_file->filename;
2656 file_index = sym_file->range.index;
2657 symbol_size = sym_file->symbol_size;
2658 lineno_size = sym_file->lineno_size;
2659 }
2660 else
2661 {
2662 PDB_SYMBOL_FILE_EX *sym_file = (PDB_SYMBOL_FILE_EX *) file;
2663 file_nr = sym_file->file;
2664 file_name = sym_file->filename;
2665 file_index = sym_file->range.index;
2666 symbol_size = sym_file->symbol_size;
2667 lineno_size = sym_file->lineno_size;
2668 }
2669
2670 modimage = pdb_read_file( image, toc, file_nr );
2671 if ( modimage )
2672 {
2673 struct codeview_linetab_hdr *linetab = NULL;
2674
2675 if ( lineno_size )
2676 linetab = DEBUG_SnarfLinetab( modimage + symbol_size, lineno_size );
2677
2678 if ( symbol_size )
2679 DEBUG_SnarfCodeView( module, modimage, sizeof(DWORD),
2680 symbol_size, linetab );
2681
2682 pdb_free( modimage );
2683 }
2684
2685 file_name += strlen(file_name) + 1;
2686 file = (char *)( (DWORD)(file_name + strlen(file_name) + 1 + 3) & ~3 );
2687 }
2688
2689 dil = DIL_LOADED;
2690
2691 leave:
2692
2693 /*
2694 * Cleanup
2695 */
2696
2697 DEBUG_ClearTypeTable();
2698
2699 if ( symbols_image ) pdb_free( symbols_image );
2700 if ( types_image ) pdb_free( types_image );
2701 if ( root ) pdb_free( root );
2702 if ( toc ) pdb_free( toc );
2703
2704 DEBUG_UnmapDebugInfoFile(hFile, hMap, image);
2705
2706 return dil;
2707 }
2708
2709
2710
2711
2712 /*========================================================================
2713 * Process CodeView debug information.
2714 */
2715
2716 #define CODEVIEW_NB09_SIG ( 'N' | ('B' << 8) | ('0' << 16) | ('9' << 24) )
2717 #define CODEVIEW_NB10_SIG ( 'N' | ('B' << 8) | ('1' << 16) | ('0' << 24) )
2718 #define CODEVIEW_NB11_SIG ( 'N' | ('B' << 8) | ('1' << 16) | ('1' << 24) )
2719
2720 typedef struct _CODEVIEW_HEADER
2721 {
2722 DWORD dwSignature;
2723 DWORD lfoDirectory;
2724
2725 } CODEVIEW_HEADER, *PCODEVIEW_HEADER;
2726
2727 typedef struct _CODEVIEW_PDB_DATA
2728 {
2729 DWORD timestamp;
2730 DWORD unknown;
2731 CHAR name[ 1 ];
2732
2733 } CODEVIEW_PDB_DATA, *PCODEVIEW_PDB_DATA;
2734
2735 typedef struct _CV_DIRECTORY_HEADER
2736 {
2737 WORD cbDirHeader;
2738 WORD cbDirEntry;
2739 DWORD cDir;
2740 DWORD lfoNextDir;
2741 DWORD flags;
2742
2743 } CV_DIRECTORY_HEADER, *PCV_DIRECTORY_HEADER;
2744
2745 typedef struct _CV_DIRECTORY_ENTRY
2746 {
2747 WORD subsection;
2748 WORD iMod;
2749 DWORD lfo;
2750 DWORD cb;
2751
2752 } CV_DIRECTORY_ENTRY, *PCV_DIRECTORY_ENTRY;
2753
2754
2755 #define sstAlignSym 0x125
2756 #define sstSrcModule 0x127
2757
2758
2759 static enum DbgInfoLoad DEBUG_ProcessCodeView( DBG_MODULE *module, LPBYTE root )
2760 {
2761 PCODEVIEW_HEADER cv = (PCODEVIEW_HEADER)root;
2762 enum DbgInfoLoad dil = DIL_ERROR;
2763
2764 switch ( cv->dwSignature )
2765 {
2766 case CODEVIEW_NB09_SIG:
2767 case CODEVIEW_NB11_SIG:
2768 {
2769 PCV_DIRECTORY_HEADER hdr = (PCV_DIRECTORY_HEADER)(root + cv->lfoDirectory);
2770 PCV_DIRECTORY_ENTRY ent, prev, next;
2771 int i;
2772
2773 ent = (PCV_DIRECTORY_ENTRY)((LPBYTE)hdr + hdr->cbDirHeader);
2774 for ( i = 0; i < hdr->cDir; i++, ent = next )
2775 {
2776 next = (i == hdr->cDir-1)? NULL :
2777 (PCV_DIRECTORY_ENTRY)((LPBYTE)ent + hdr->cbDirEntry);
2778 prev = (i == 0)? NULL :
2779 (PCV_DIRECTORY_ENTRY)((LPBYTE)ent - hdr->cbDirEntry);
2780
2781 if ( ent->subsection == sstAlignSym )
2782 {
2783 /*
2784 * Check the next and previous entry. If either is a
2785 * sstSrcModule, it contains the line number info for
2786 * this file.
2787 *
2788 * FIXME: This is not a general solution!
2789 */
2790 struct codeview_linetab_hdr *linetab = NULL;
2791
2792 if ( next && next->iMod == ent->iMod
2793 && next->subsection == sstSrcModule )
2794 linetab = DEBUG_SnarfLinetab( root + next->lfo, next->cb );
2795
2796 if ( prev && prev->iMod == ent->iMod
2797 && prev->subsection == sstSrcModule )
2798 linetab = DEBUG_SnarfLinetab( root + prev->lfo, prev->cb );
2799
2800
2801 DEBUG_SnarfCodeView( module, root + ent->lfo, sizeof(DWORD),
2802 ent->cb, linetab );
2803 }
2804 }
2805
2806 dil = DIL_LOADED;
2807 break;
2808 }
2809
2810 case CODEVIEW_NB10_SIG:
2811 {
2812 PCODEVIEW_PDB_DATA pdb = (PCODEVIEW_PDB_DATA)(cv + 1);
2813
2814 dil = DEBUG_ProcessPDBFile( module, pdb->name, pdb->timestamp );
2815 break;
2816 }
2817
2818 default:
2819 DEBUG_Printf( DBG_CHN_ERR, "Unknown CODEVIEW signature %08lX in module %s\n",
2820 cv->dwSignature, module->module_name );
2821 break;
2822 }
2823
2824 return dil;
2825 }
2826
2827
2828 /*========================================================================
2829 * Process debug directory.
2830 */
2831 static enum DbgInfoLoad DEBUG_ProcessDebugDirectory( DBG_MODULE *module,
2832 LPBYTE file_map,
2833 PIMAGE_DEBUG_DIRECTORY dbg,
2834 int nDbg )
2835 {
2836 enum DbgInfoLoad dil = DIL_ERROR;
2837 int i;
2838
2839 /* First, watch out for OMAP data */
2840 for ( i = 0; i < nDbg; i++ )
2841 if ( dbg[i].Type == IMAGE_DEBUG_TYPE_OMAP_FROM_SRC )
2842 {
2843 module->msc_info->nomap = dbg[i].SizeOfData / sizeof(OMAP_DATA);
2844 module->msc_info->omapp = (OMAP_DATA *)(file_map + dbg[i].PointerToRawData);
2845 break;
2846 }
2847
2848
2849 /* Now, try to parse CodeView debug info */
2850 for ( i = 0; dil != DIL_LOADED && i < nDbg; i++ )
2851 if ( dbg[i].Type == IMAGE_DEBUG_TYPE_CODEVIEW )
2852 dil = DEBUG_ProcessCodeView( module, file_map + dbg[i].PointerToRawData );
2853
2854
2855 /* If not found, try to parse COFF debug info */
2856 for ( i = 0; dil != DIL_LOADED && i < nDbg; i++ )
2857 if ( dbg[i].Type == IMAGE_DEBUG_TYPE_COFF )
2858 dil = DEBUG_ProcessCoff( module, file_map + dbg[i].PointerToRawData );
2859
2860 #if 0
2861 /* FIXME: this should be supported... this is the debug information for
2862 * functions compiled without a frame pointer (FPO = frame pointer omission)
2863 * the associated data helps finding out the relevant information
2864 */
2865 for ( i = 0; i < nDbg; i++ )
2866 if ( dbg[i].Type == IMAGE_DEBUG_TYPE_FPO )
2867 DEBUG_Printf(DBG_CHN_MESG, "This guy has FPO information\n");
2868
2869 #define FRAME_FPO 0
2870 #define FRAME_TRAP 1
2871 #define FRAME_TSS 2
2872
2873 typedef struct _FPO_DATA {
2874 DWORD ulOffStart; /* offset 1st byte of function code */
2875 DWORD cbProcSize; /* # bytes in function */
2876 DWORD cdwLocals; /* # bytes in locals/4 */
2877 WORD cdwParams; /* # bytes in params/4 */
2878
2879 WORD cbProlog : 8; /* # bytes in prolog */
2880 WORD cbRegs : 3; /* # regs saved */
2881 WORD fHasSEH : 1; /* TRUE if SEH in func */
2882 WORD fUseBP : 1; /* TRUE if EBP has been allocated */
2883 WORD reserved : 1; /* reserved for future use */
2884 WORD cbFrame : 2; /* frame type */
2885 } FPO_DATA;
2886 #endif
2887
2888 return dil;
2889 }
2890
2891
2892 /*========================================================================
2893 * Process DBG file.
2894 */
2895 static enum DbgInfoLoad DEBUG_ProcessDBGFile( DBG_MODULE *module,
2896 const char *filename, DWORD timestamp )
2897 {
2898 enum DbgInfoLoad dil = DIL_ERROR;
2899 HANDLE hFile = 0, hMap = 0;
2900 LPBYTE file_map = NULL;
2901 PIMAGE_SEPARATE_DEBUG_HEADER hdr;
2902 PIMAGE_DEBUG_DIRECTORY dbg;
2903 int nDbg;
2904
2905
2906 DEBUG_Printf( DBG_CHN_TRACE, "Processing DBG file %s\n", filename );
2907
2908 file_map = DEBUG_MapDebugInfoFile( filename, 0, 0, &hFile, &hMap );
2909 if ( !file_map )
2910 {
2911 DEBUG_Printf( DBG_CHN_ERR, "-Unable to peruse .DBG file %s\n", filename );
2912 goto leave;
2913 }
2914
2915 hdr = (PIMAGE_SEPARATE_DEBUG_HEADER) file_map;
2916
2917 if ( hdr->TimeDateStamp != timestamp )
2918 {
2919 DEBUG_Printf( DBG_CHN_ERR, "Warning - %s has incorrect internal timestamp\n",
2920 filename );
2921 /*
2922 * Well, sometimes this happens to DBG files which ARE REALLY the right .DBG
2923 * files but nonetheless this check fails. Anyway, WINDBG (debugger for
2924 * Windows by Microsoft) loads debug symbols which have incorrect timestamps.
2925 */
2926 }
2927
2928
2929 dbg = (PIMAGE_DEBUG_DIRECTORY) ( file_map + sizeof(*hdr)
2930 + hdr->NumberOfSections * sizeof(IMAGE_SECTION_HEADER)
2931 + hdr->ExportedNamesSize );
2932
2933 nDbg = hdr->DebugDirectorySize / sizeof(*dbg);
2934
2935 dil = DEBUG_ProcessDebugDirectory( module, file_map, dbg, nDbg );
2936
2937
2938 leave:
2939 DEBUG_UnmapDebugInfoFile( hFile, hMap, file_map );
2940 return dil;
2941 }
2942
2943
2944 /*========================================================================
2945 * Process MSC debug information in PE file.
2946 */
2947 enum DbgInfoLoad DEBUG_RegisterMSCDebugInfo( DBG_MODULE *module, HANDLE hFile,
2948 void *_nth, unsigned long nth_ofs )
2949 {
2950 enum DbgInfoLoad dil = DIL_ERROR;
2951 PIMAGE_NT_HEADERS nth = (PIMAGE_NT_HEADERS)_nth;
2952 PIMAGE_DATA_DIRECTORY dir = nth->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_DEBUG;
2953 PIMAGE_DEBUG_DIRECTORY dbg = NULL;
2954 int nDbg;
2955 MSC_DBG_INFO extra_info = { 0, NULL, 0, NULL };
2956 HANDLE hMap = 0;
2957 LPBYTE file_map = NULL;
2958
2959
2960 /* Read in section data */
2961
2962 module->msc_info = &extra_info;
2963 extra_info.nsect = nth->FileHeader.NumberOfSections;
2964 extra_info.sectp = DBG_alloc( extra_info.nsect * sizeof(IMAGE_SECTION_HEADER) );
2965 if ( !extra_info.sectp )
2966 goto leave;
2967
2968 if ( !DEBUG_READ_MEM_VERBOSE( (char *)module->load_addr +
2969 nth_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) +
2970 nth->FileHeader.SizeOfOptionalHeader,
2971 extra_info.sectp,
2972 extra_info.nsect * sizeof(IMAGE_SECTION_HEADER) ) )
2973 goto leave;
2974
2975 /* Read in debug directory */
2976
2977 nDbg = dir->Size / sizeof(IMAGE_DEBUG_DIRECTORY);
2978 if ( !nDbg )
2979 goto leave;
2980
2981 dbg = (PIMAGE_DEBUG_DIRECTORY) DBG_alloc( nDbg * sizeof(IMAGE_DEBUG_DIRECTORY) );
2982 if ( !dbg )
2983 goto leave;
2984
2985 if ( !DEBUG_READ_MEM_VERBOSE( (char *)module->load_addr + dir->VirtualAddress,
2986 dbg, nDbg * sizeof(IMAGE_DEBUG_DIRECTORY) ) )
2987 goto leave;
2988
2989
2990 /* Map in PE file */
2991 file_map = DEBUG_MapDebugInfoFile( NULL, 0, 0, &hFile, &hMap );
2992 if ( !file_map )
2993 goto leave;
2994
2995
2996 /* Parse debug directory */
2997
2998 if ( nth->FileHeader.Characteristics & IMAGE_FILE_DEBUG_STRIPPED )
2999 {
3000 /* Debug info is stripped to .DBG file */
3001
3002 PIMAGE_DEBUG_MISC misc = (PIMAGE_DEBUG_MISC)(file_map + dbg->PointerToRawData);
3003
3004 if ( nDbg != 1 || dbg->Type != IMAGE_DEBUG_TYPE_MISC
3005 || misc->DataType != IMAGE_DEBUG_MISC_EXENAME )
3006 {
3007 DEBUG_Printf( DBG_CHN_ERR, "-Debug info stripped, but no .DBG file in module %s\n",
3008 module->module_name );
3009 goto leave;
3010 }
3011
3012 dil = DEBUG_ProcessDBGFile( module, misc->Data, nth->FileHeader.TimeDateStamp );
3013 }
3014 else
3015 {
3016 /* Debug info is embedded into PE module */
3017
3018 dil = DEBUG_ProcessDebugDirectory( module, file_map, dbg, nDbg );
3019 }
3020
3021
3022 leave:
3023 module->msc_info = NULL;
3024
3025 DEBUG_UnmapDebugInfoFile( 0, hMap, file_map );
3026 if ( extra_info.sectp ) DBG_free( extra_info.sectp );
3027 if ( dbg ) DBG_free( dbg );
3028 return dil;
3029 }
3030
3031
3032 /*========================================================================
3033 * look for stabs information in PE header (it's how mingw compiler provides its
3034 * debugging information), and also wine PE <-> ELF linking thru .wsolnk sections
3035 */
3036 enum DbgInfoLoad DEBUG_RegisterStabsDebugInfo(DBG_MODULE* module, HANDLE hFile,
3037 void* _nth, unsigned long nth_ofs)
3038 {
3039 IMAGE_SECTION_HEADER pe_seg;
3040 unsigned long pe_seg_ofs;
3041 int i, stabsize = 0, stabstrsize = 0;
3042 unsigned int stabs = 0, stabstr = 0;
3043 PIMAGE_NT_HEADERS nth = (PIMAGE_NT_HEADERS)_nth;
3044 enum DbgInfoLoad dil = DIL_ERROR;
3045
3046 pe_seg_ofs = nth_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) +
3047 nth->FileHeader.SizeOfOptionalHeader;
3048
3049 for (i = 0; i < nth->FileHeader.NumberOfSections; i++, pe_seg_ofs += sizeof(pe_seg)) {
3050 if (!DEBUG_READ_MEM_VERBOSE((void*)((char *)module->load_addr + pe_seg_ofs),
3051 &pe_seg, sizeof(pe_seg)))
3052 continue;
3053
3054 if (!strcasecmp(pe_seg.Name, ".stab")) {
3055 stabs = pe_seg.VirtualAddress;
3056 stabsize = pe_seg.SizeOfRawData;
3057 } else if (!strncasecmp(pe_seg.Name, ".stabstr", 8)) {
3058 stabstr = pe_seg.VirtualAddress;
3059 stabstrsize = pe_seg.SizeOfRawData;
3060 }
3061 }
3062
3063 if (stabstrsize && stabsize) {
3064 char* s1 = DBG_alloc(stabsize+stabstrsize);
3065
3066 if (s1) {
3067 if (DEBUG_READ_MEM_VERBOSE((char*)module->load_addr + stabs, s1, stabsize) &&
3068 DEBUG_READ_MEM_VERBOSE((char*)module->load_addr + stabstr,
3069 s1 + stabsize, stabstrsize)) {
3070 dil = DEBUG_ParseStabs(s1, 0, 0, stabsize, stabsize, stabstrsize);
3071 } else {
3072 DEBUG_Printf(DBG_CHN_MESG, "couldn't read data block\n");
3073 }
3074 DBG_free(s1);
3075 } else {
3076 DEBUG_Printf(DBG_CHN_MESG, "couldn't alloc %d bytes\n",
3077 stabsize + stabstrsize);
3078 }
3079 } else {
3080 dil = DIL_NOINFO;
3081 }
3082 return dil;
3083 }
3084
Windows API implementation