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Don't create the WINEPREFIX directory if it doesn't exist.
[wine/multimedia.git] / debugger / msc.c
blob4bf736310a3b6ef124749afb7fce04eeae1326d0
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
28 #define MAX_PATHNAME_LEN 1024
29
30 typedef struct
31 {
32 DWORD from;
33 DWORD to;
34
35 } OMAP_DATA;
36
37 typedef struct tagMSC_DBG_INFO
38 {
39 int nsect;
40 PIMAGE_SECTION_HEADER sectp;
41
42 int nomap;
43 OMAP_DATA * omapp;
44
45 } MSC_DBG_INFO;
46
47 /*========================================================================
48 * Debug file access helper routines
49 */
50
51
52 /***********************************************************************
53 * DEBUG_LocateDebugInfoFile
54 *
55 * NOTE: dbg_filename must be at least MAX_PATHNAME_LEN bytes in size
56 */
57 static void DEBUG_LocateDebugInfoFile(const char *filename, char *dbg_filename)
58 {
59 char *str1 = DBG_alloc(MAX_PATHNAME_LEN);
60 char *str2 = DBG_alloc(MAX_PATHNAME_LEN*10);
61 const char *file;
62 char *name_part;
63
64 file = strrchr(filename, '\\');
65 if( file == NULL ) file = filename; else file++;
66
67 if ((GetEnvironmentVariable("_NT_SYMBOL_PATH", str1, MAX_PATHNAME_LEN) &&
68 (SearchPath(str1, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part))) ||
69 (GetEnvironmentVariable("_NT_ALT_SYMBOL_PATH", str1, MAX_PATHNAME_LEN) &&
70 (SearchPath(str1, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part))) ||
71 (SearchPath(NULL, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part)))
72 lstrcpyn(dbg_filename, str2, MAX_PATHNAME_LEN);
73 else
74 lstrcpyn(dbg_filename, filename, MAX_PATHNAME_LEN);
75 DBG_free(str1);
76 DBG_free(str2);
77 }
78
79 /***********************************************************************
80 * DEBUG_MapDebugInfoFile
81 */
82 static void* DEBUG_MapDebugInfoFile(const char* name, DWORD offset, DWORD size,
83 HANDLE* hFile, HANDLE* hMap)
84 {
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 = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE)
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!=INVALID_HANDLE_VALUE) 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 unsigned int i;
218 int j;
219 int k;
220 int l;
221 int linetab_indx;
222 const char * nampnt;
223 int naux;
224 DBG_VALUE new_value;
225 enum DbgInfoLoad dil = DIL_ERROR;
226
227 DEBUG_Printf(DBG_CHN_TRACE, "Processing COFF symbols...\n");
228
229 assert(sizeof(IMAGE_SYMBOL) == IMAGE_SIZEOF_SYMBOL);
230 assert(sizeof(IMAGE_LINENUMBER) == IMAGE_SIZEOF_LINENUMBER);
231
232 coff_files.files = NULL;
233 coff_files.nfiles = coff_files.nfiles_alloc = 0;
234
235 coff = (PIMAGE_COFF_SYMBOLS_HEADER) root;
236
237 coff_symbols = (PIMAGE_SYMBOL) ((unsigned int) coff + coff->LvaToFirstSymbol);
238 coff_linetab = (PIMAGE_LINENUMBER) ((unsigned int) coff + coff->LvaToFirstLinenumber);
239 coff_strtab = (char *) (coff_symbols + coff->NumberOfSymbols);
240
241 linetab_indx = 0;
242
243 new_value.cookie = DV_TARGET;
244 new_value.type = NULL;
245
246 for(i=0; i < coff->NumberOfSymbols; i++ )
247 {
248 coff_sym = coff_symbols + i;
249 naux = coff_sym->NumberOfAuxSymbols;
250
251 if( coff_sym->StorageClass == IMAGE_SYM_CLASS_FILE )
252 {
253 curr_file_idx = DEBUG_AddCoffFile( &coff_files, (char *) (coff_sym + 1) );
254 DEBUG_Printf(DBG_CHN_TRACE,"New file %s\n", coff_files.files[curr_file_idx].filename);
255 i += naux;
256 continue;
257 }
258
259 if (curr_file_idx < 0) {
260 assert(coff_files.nfiles == 0 && coff_files.nfiles_alloc == 0);
261 curr_file_idx = DEBUG_AddCoffFile( &coff_files, "<none>" );
262 DEBUG_Printf(DBG_CHN_TRACE,"New file %s\n", coff_files.files[curr_file_idx].filename);
263 }
264
265 /*
266 * This guy marks the size and location of the text section
267 * for the current file. We need to keep track of this so
268 * we can figure out what file the different global functions
269 * go with.
270 */
271 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC)
272 && (naux != 0)
273 && (coff_sym->Type == 0)
274 && (coff_sym->SectionNumber == 1) )
275 {
276 aux = (PIMAGE_AUX_SYMBOL) (coff_sym + 1);
277
278 if( coff_files.files[curr_file_idx].linetab_offset != -1 )
279 {
280 /*
281 * Save this so we can still get the old name.
282 */
283 const char* fn = coff_files.files[curr_file_idx].filename;
284
285 #ifdef MORE_DBG
286 DEBUG_Printf(DBG_CHN_TRACE, "Duplicating sect from %s: %lx %x %x %d %d\n",
287 coff_files.files[curr_file_idx].filename,
288 aux->Section.Length,
289 aux->Section.NumberOfRelocations,
290 aux->Section.NumberOfLinenumbers,
291 aux->Section.Number,
292 aux->Section.Selection);
293 DEBUG_Printf(DBG_CHN_TRACE, "More sect %d %s %08lx %d %d %d\n",
294 coff_sym->SectionNumber,
295 DEBUG_GetCoffName( coff_sym, coff_strtab ),
296 coff_sym->Value,
297 coff_sym->Type,
298 coff_sym->StorageClass,
299 coff_sym->NumberOfAuxSymbols);
300 #endif
301
302 /*
303 * Duplicate the file entry. We have no way to describe
304 * multiple text sections in our current way of handling things.
305 */
306 DEBUG_AddCoffFile( &coff_files, fn );
307 }
308 #ifdef MORE_DBG
309 else
310 {
311 DEBUG_Printf(DBG_CHN_TRACE, "New text sect from %s: %lx %x %x %d %d\n",
312 coff_files.files[curr_file_idx].filename,
313 aux->Section.Length,
314 aux->Section.NumberOfRelocations,
315 aux->Section.NumberOfLinenumbers,
316 aux->Section.Number,
317 aux->Section.Selection);
318 }
319 #endif
320
321 if( coff_files.files[curr_file_idx].startaddr > coff_sym->Value )
322 {
323 coff_files.files[curr_file_idx].startaddr = coff_sym->Value;
324 }
325
326 if( coff_files.files[curr_file_idx].endaddr < coff_sym->Value + aux->Section.Length )
327 {
328 coff_files.files[curr_file_idx].endaddr = coff_sym->Value + aux->Section.Length;
329 }
330
331 coff_files.files[curr_file_idx].linetab_offset = linetab_indx;
332 coff_files.files[curr_file_idx].linecnt = aux->Section.NumberOfLinenumbers;
333 linetab_indx += aux->Section.NumberOfLinenumbers;
334 i += naux;
335 continue;
336 }
337
338 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC)
339 && (naux == 0)
340 && (coff_sym->SectionNumber == 1) )
341 {
342 DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
343 /*
344 * This is a normal static function when naux == 0.
345 * Just register it. The current file is the correct
346 * one in this instance.
347 */
348 nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab );
349
350 new_value.addr.seg = 0;
351 new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value);
352
353 #ifdef MORE_DBG
354 DEBUG_Printf(DBG_CHN_TRACE,"\tAdding static symbol %s\n", nampnt);
355 #endif
356
357 /* FIXME: was adding symbol to this_file ??? */
358 DEBUG_AddCoffSymbol( &coff_files.files[curr_file_idx],
359 DEBUG_AddSymbol( nampnt, &new_value,
360 coff_files.files[curr_file_idx].filename,
361 SYM_WIN32 | SYM_FUNC ) );
362 i += naux;
363 continue;
364 }
365
366 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL)
367 && ISFCN(coff_sym->Type)
368 && (coff_sym->SectionNumber > 0) )
369 {
370 const char* this_file = NULL;
371 DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
372 nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab );
373
374 new_value.addr.seg = 0;
375 new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value);
376
377 #ifdef MORE_DBG
378 DEBUG_Printf(DBG_CHN_TRACE, "%d: %lx %s\n", i, new_value.addr.off, nampnt);
379
380 DEBUG_Printf(DBG_CHN_TRACE,"\tAdding global symbol %s (sect=%s)\n",
381 nampnt, MSC_INFO(module)->sectp[coff_sym->SectionNumber - 1].Name);
382 #endif
383
384 /*
385 * Now we need to figure out which file this guy belongs to.
386 */
387 for(j=0; j < coff_files.nfiles; j++)
388 {
389 if( coff_files.files[j].startaddr <= base + coff_sym->Value
390 && coff_files.files[j].endaddr > base + coff_sym->Value )
391 {
392 this_file = coff_files.files[j].filename;
393 break;
394 }
395 }
396 if (j < coff_files.nfiles) {
397 DEBUG_AddCoffSymbol( &coff_files.files[j],
398 DEBUG_AddSymbol( nampnt, &new_value, this_file, SYM_WIN32 | SYM_FUNC ) );
399 } else {
400 DEBUG_AddSymbol( nampnt, &new_value, NULL, SYM_WIN32 | SYM_FUNC );
401 }
402 i += naux;
403 continue;
404 }
405
406 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL)
407 && (coff_sym->SectionNumber > 0) )
408 {
409 DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
410 /*
411 * Similar to above, but for the case of data symbols.
412 * These aren't treated as entrypoints.
413 */
414 nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab );
415
416 new_value.addr.seg = 0;
417 new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value);
418
419 #ifdef MORE_DBG
420 DEBUG_Printf(DBG_CHN_TRACE, "%d: %lx %s\n", i, new_value.addr.off, nampnt);
421
422 DEBUG_Printf(DBG_CHN_TRACE,"\tAdding global data symbol %s\n", nampnt);
423 #endif
424
425 /*
426 * Now we need to figure out which file this guy belongs to.
427 */
428 DEBUG_AddSymbol( nampnt, &new_value, NULL, SYM_WIN32 | SYM_DATA );
429 i += naux;
430 continue;
431 }
432
433 if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC)
434 && (naux == 0) )
435 {
436 /*
437 * Ignore these. They don't have anything to do with
438 * reality.
439 */
440 i += naux;
441 continue;
442 }
443
444 #ifdef MORE_DBG
445 DEBUG_Printf(DBG_CHN_TRACE,"Skipping unknown entry '%s' %d %d %d\n",
446 DEBUG_GetCoffName( coff_sym, coff_strtab ),
447 coff_sym->StorageClass, coff_sym->SectionNumber, naux);
448 #endif
449
450 /*
451 * For now, skip past the aux entries.
452 */
453 i += naux;
454
455 }
456
457 /*
458 * OK, we now should have a list of files, and we should have a list
459 * of entrypoints. We need to sort the entrypoints so that we are
460 * able to tie the line numbers with the given functions within the
461 * file.
462 */
463 if( coff_files.files != NULL )
464 {
465 for(j=0; j < coff_files.nfiles; j++)
466 {
467 if( coff_files.files[j].entries != NULL )
468 {
469 qsort(coff_files.files[j].entries, coff_files.files[j].neps,
470 sizeof(struct name_hash *), DEBUG_cmp_sym);
471 }
472 }
473
474 /*
475 * Now pick apart the line number tables, and attach the entries
476 * to the given functions.
477 */
478 for(j=0; j < coff_files.nfiles; j++)
479 {
480 l = 0;
481 if( coff_files.files[j].neps != 0 )
482 for(k=0; k < coff_files.files[j].linecnt; k++)
483 {
484 linepnt = coff_linetab + coff_files.files[j].linetab_offset + k;
485 /*
486 * If we have spilled onto the next entrypoint, then
487 * bump the counter..
488 */
489 while(TRUE)
490 {
491 if (l+1 >= coff_files.files[j].neps) break;
492 DEBUG_GetSymbolAddr(coff_files.files[j].entries[l+1], &new_value.addr);
493 if( (((unsigned int)module->load_addr +
494 linepnt->Type.VirtualAddress) >= new_value.addr.off) )
495 {
496 l++;
497 } else break;
498 }
499
500 /*
501 * Add the line number. This is always relative to the
502 * start of the function, so we need to subtract that offset
503 * first.
504 */
505 DEBUG_GetSymbolAddr(coff_files.files[j].entries[l], &new_value.addr);
506 DEBUG_AddLineNumber(coff_files.files[j].entries[l],
507 linepnt->Linenumber,
508 (unsigned int) module->load_addr
509 + linepnt->Type.VirtualAddress
510 - new_value.addr.off);
511 }
512 }
513 }
514
515 dil = DIL_LOADED;
516
517 if( coff_files.files != NULL )
518 {
519 for(j=0; j < coff_files.nfiles; j++)
520 {
521 if( coff_files.files[j].entries != NULL )
522 {
523 DBG_free(coff_files.files[j].entries);
524 }
525 }
526 DBG_free(coff_files.files);
527 }
528
529 return dil;
530
531 }
532
533
534
535 /*========================================================================
536 * Process CodeView type information.
537 */
538
539 union codeview_type
540 {
541 struct
542 {
543 short int len;
544 short int id;
545 } generic;
546
547 struct
548 {
549 short int len;
550 short int id;
551 short int attribute;
552 short int datatype;
553 unsigned char variant[1];
554 } pointer;
555
556 struct
557 {
558 short int len;
559 short int id;
560 unsigned int datatype;
561 unsigned int attribute;
562 unsigned char variant[1];
563 } pointer32;
564
565 struct
566 {
567 short int len;
568 short int id;
569 unsigned char nbits;
570 unsigned char bitoff;
571 unsigned short type;
572 } bitfield;
573
574 struct
575 {
576 short int len;
577 short int id;
578 unsigned int type;
579 unsigned char nbits;
580 unsigned char bitoff;
581 } bitfield32;
582
583 struct
584 {
585 short int len;
586 short int id;
587 short int elemtype;
588 short int idxtype;
589 unsigned short int arrlen; /* numeric leaf */
590 #if 0
591 unsigned char name[1];
592 #endif
593 } array;
594
595 struct
596 {
597 short int len;
598 short int id;
599 unsigned int elemtype;
600 unsigned int idxtype;
601 unsigned short int arrlen; /* numeric leaf */
602 #if 0
603 unsigned char name[1];
604 #endif
605 } array32;
606
607 struct
608 {
609 short int len;
610 short int id;
611 short int n_element;
612 short int fieldlist;
613 short int property;
614 short int derived;
615 short int vshape;
616 unsigned short int structlen; /* numeric leaf */
617 #if 0
618 unsigned char name[1];
619 #endif
620 } structure;
621
622 struct
623 {
624 short int len;
625 short int id;
626 short int n_element;
627 short int property;
628 unsigned int fieldlist;
629 unsigned int derived;
630 unsigned int vshape;
631 unsigned short int structlen; /* numeric leaf */
632 #if 0
633 unsigned char name[1];
634 #endif
635 } structure32;
636
637 struct
638 {
639 short int len;
640 short int id;
641 short int count;
642 short int fieldlist;
643 short int property;
644 unsigned short int un_len; /* numeric leaf */
645 #if 0
646 unsigned char name[1];
647 #endif
648 } t_union;
649
650 struct
651 {
652 short int len;
653 short int id;
654 short int count;
655 short int property;
656 unsigned int fieldlist;
657 unsigned short int un_len; /* numeric leaf */
658 #if 0
659 unsigned char name[1];
660 #endif
661 } t_union32;
662
663 struct
664 {
665 short int len;
666 short int id;
667 short int count;
668 short int type;
669 short int field;
670 short int property;
671 unsigned char name[1];
672 } enumeration;
673
674 struct
675 {
676 short int len;
677 short int id;
678 short int count;
679 short int property;
680 unsigned int type;
681 unsigned int field;
682 unsigned char name[1];
683 } enumeration32;
684
685 struct
686 {
687 short int len;
688 short int id;
689 unsigned char list[1];
690 } fieldlist;
691 };
692
693 union codeview_fieldtype
694 {
695 struct
696 {
697 short int id;
698 } generic;
699
700 struct
701 {
702 short int id;
703 short int type;
704 short int attribute;
705 unsigned short int offset; /* numeric leaf */
706 } bclass;
707
708 struct
709 {
710 short int id;
711 short int attribute;
712 unsigned int type;
713 unsigned short int offset; /* numeric leaf */
714 } bclass32;
715
716 struct
717 {
718 short int id;
719 short int btype;
720 short int vbtype;
721 short int attribute;
722 unsigned short int vbpoff; /* numeric leaf */
723 #if 0
724 unsigned short int vboff; /* numeric leaf */
725 #endif
726 } vbclass;
727
728 struct
729 {
730 short int id;
731 short int attribute;
732 unsigned int btype;
733 unsigned int vbtype;
734 unsigned short int vbpoff; /* numeric leaf */
735 #if 0
736 unsigned short int vboff; /* numeric leaf */
737 #endif
738 } vbclass32;
739
740 struct
741 {
742 short int id;
743 short int attribute;
744 unsigned short int value; /* numeric leaf */
745 #if 0
746 unsigned char name[1];
747 #endif
748 } enumerate;
749
750 struct
751 {
752 short int id;
753 short int type;
754 unsigned char name[1];
755 } friendfcn;
756
757 struct
758 {
759 short int id;
760 short int _pad0;
761 unsigned int type;
762 unsigned char name[1];
763 } friendfcn32;
764
765 struct
766 {
767 short int id;
768 short int type;
769 short int attribute;
770 unsigned short int offset; /* numeric leaf */
771 #if 0
772 unsigned char name[1];
773 #endif
774 } member;
775
776 struct
777 {
778 short int id;
779 short int attribute;
780 unsigned int type;
781 unsigned short int offset; /* numeric leaf */
782 #if 0
783 unsigned char name[1];
784 #endif
785 } member32;
786
787 struct
788 {
789 short int id;
790 short int type;
791 short int attribute;
792 unsigned char name[1];
793 } stmember;
794
795 struct
796 {
797 short int id;
798 short int attribute;
799 unsigned int type;
800 unsigned char name[1];
801 } stmember32;
802
803 struct
804 {
805 short int id;
806 short int count;
807 short int mlist;
808 unsigned char name[1];
809 } method;
810
811 struct
812 {
813 short int id;
814 short int count;
815 unsigned int mlist;
816 unsigned char name[1];
817 } method32;
818
819 struct
820 {
821 short int id;
822 short int index;
823 unsigned char name[1];
824 } nesttype;
825
826 struct
827 {
828 short int id;
829 short int _pad0;
830 unsigned int index;
831 unsigned char name[1];
832 } nesttype32;
833
834 struct
835 {
836 short int id;
837 short int type;
838 } vfunctab;
839
840 struct
841 {
842 short int id;
843 short int _pad0;
844 unsigned int type;
845 } vfunctab32;
846
847 struct
848 {
849 short int id;
850 short int type;
851 } friendcls;
852
853 struct
854 {
855 short int id;
856 short int _pad0;
857 unsigned int type;
858 } friendcls32;
859
860
861 struct
862 {
863 short int id;
864 short int attribute;
865 short int type;
866 unsigned char name[1];
867 } onemethod;
868 struct
869 {
870 short int id;
871 short int attribute;
872 short int type;
873 unsigned int vtab_offset;
874 unsigned char name[1];
875 } onemethod_virt;
876
877 struct
878 {
879 short int id;
880 short int attribute;
881 unsigned int type;
882 unsigned char name[1];
883 } onemethod32;
884 struct
885 {
886 short int id;
887 short int attribute;
888 unsigned int type;
889 unsigned int vtab_offset;
890 unsigned char name[1];
891 } onemethod32_virt;
892
893 struct
894 {
895 short int id;
896 short int type;
897 unsigned int offset;
898 } vfuncoff;
899
900 struct
901 {
902 short int id;
903 short int _pad0;
904 unsigned int type;
905 unsigned int offset;
906 } vfuncoff32;
907
908 struct
909 {
910 short int id;
911 short int attribute;
912 short int index;
913 unsigned char name[1];
914 } nesttypeex;
915
916 struct
917 {
918 short int id;
919 short int attribute;
920 unsigned int index;
921 unsigned char name[1];
922 } nesttypeex32;
923
924 struct
925 {
926 short int id;
927 short int attribute;
928 unsigned int type;
929 unsigned char name[1];
930 } membermodify;
931 };
932
933
934 /*
935 * This covers the basic datatypes that VC++ seems to be using these days.
936 * 32 bit mode only. There are additional numbers for the pointers in 16
937 * bit mode. There are many other types listed in the documents, but these
938 * are apparently not used by the compiler, or represent pointer types
939 * that are not used.
940 */
941 #define T_NOTYPE 0x0000 /* Notype */
942 #define T_ABS 0x0001 /* Abs */
943 #define T_VOID 0x0003 /* Void */
944 #define T_CHAR 0x0010 /* signed char */
945 #define T_SHORT 0x0011 /* short */
946 #define T_LONG 0x0012 /* long */
947 #define T_QUAD 0x0013 /* long long */
948 #define T_UCHAR 0x0020 /* unsigned char */
949 #define T_USHORT 0x0021 /* unsigned short */
950 #define T_ULONG 0x0022 /* unsigned long */
951 #define T_UQUAD 0x0023 /* unsigned long long */
952 #define T_REAL32 0x0040 /* float */
953 #define T_REAL64 0x0041 /* double */
954 #define T_RCHAR 0x0070 /* real char */
955 #define T_WCHAR 0x0071 /* wide char */
956 #define T_INT4 0x0074 /* int */
957 #define T_UINT4 0x0075 /* unsigned int */
958
959 #define T_32PVOID 0x0403 /* 32 bit near pointer to void */
960 #define T_32PCHAR 0x0410 /* 16:32 near pointer to signed char */
961 #define T_32PSHORT 0x0411 /* 16:32 near pointer to short */
962 #define T_32PLONG 0x0412 /* 16:32 near pointer to int */
963 #define T_32PQUAD 0x0413 /* 16:32 near pointer to long long */
964 #define T_32PUCHAR 0x0420 /* 16:32 near pointer to unsigned char */
965 #define T_32PUSHORT 0x0421 /* 16:32 near pointer to unsigned short */
966 #define T_32PULONG 0x0422 /* 16:32 near pointer to unsigned int */
967 #define T_32PUQUAD 0x0423 /* 16:32 near pointer to long long */
968 #define T_32PREAL32 0x0440 /* 16:32 near pointer to float */
969 #define T_32PREAL64 0x0441 /* 16:32 near pointer to float */
970 #define T_32PRCHAR 0x0470 /* 16:32 near pointer to real char */
971 #define T_32PWCHAR 0x0471 /* 16:32 near pointer to real char */
972 #define T_32PINT4 0x0474 /* 16:32 near pointer to int */
973 #define T_32PUINT4 0x0475 /* 16:32 near pointer to unsigned int */
974
975
976 #define LF_MODIFIER 0x0001
977 #define LF_POINTER 0x0002
978 #define LF_ARRAY 0x0003
979 #define LF_CLASS 0x0004
980 #define LF_STRUCTURE 0x0005
981 #define LF_UNION 0x0006
982 #define LF_ENUM 0x0007
983 #define LF_PROCEDURE 0x0008
984 #define LF_MFUNCTION 0x0009
985 #define LF_VTSHAPE 0x000a
986 #define LF_COBOL0 0x000b
987 #define LF_COBOL1 0x000c
988 #define LF_BARRAY 0x000d
989 #define LF_LABEL 0x000e
990 #define LF_NULL 0x000f
991 #define LF_NOTTRAN 0x0010
992 #define LF_DIMARRAY 0x0011
993 #define LF_VFTPATH 0x0012
994 #define LF_PRECOMP 0x0013
995 #define LF_ENDPRECOMP 0x0014
996 #define LF_OEM 0x0015
997 #define LF_TYPESERVER 0x0016
998
999 #define LF_MODIFIER_32 0x1001 /* variants with new 32-bit type indices */
1000 #define LF_POINTER_32 0x1002
1001 #define LF_ARRAY_32 0x1003
1002 #define LF_CLASS_32 0x1004
1003 #define LF_STRUCTURE_32 0x1005
1004 #define LF_UNION_32 0x1006
1005 #define LF_ENUM_32 0x1007
1006 #define LF_PROCEDURE_32 0x1008
1007 #define LF_MFUNCTION_32 0x1009
1008 #define LF_COBOL0_32 0x100a
1009 #define LF_BARRAY_32 0x100b
1010 #define LF_DIMARRAY_32 0x100c
1011 #define LF_VFTPATH_32 0x100d
1012 #define LF_PRECOMP_32 0x100e
1013 #define LF_OEM_32 0x100f
1014
1015 #define LF_SKIP 0x0200
1016 #define LF_ARGLIST 0x0201
1017 #define LF_DEFARG 0x0202
1018 #define LF_LIST 0x0203
1019 #define LF_FIELDLIST 0x0204
1020 #define LF_DERIVED 0x0205
1021 #define LF_BITFIELD 0x0206
1022 #define LF_METHODLIST 0x0207
1023 #define LF_DIMCONU 0x0208
1024 #define LF_DIMCONLU 0x0209
1025 #define LF_DIMVARU 0x020a
1026 #define LF_DIMVARLU 0x020b
1027 #define LF_REFSYM 0x020c
1028
1029 #define LF_SKIP_32 0x1200 /* variants with new 32-bit type indices */
1030 #define LF_ARGLIST_32 0x1201
1031 #define LF_DEFARG_32 0x1202
1032 #define LF_FIELDLIST_32 0x1203
1033 #define LF_DERIVED_32 0x1204
1034 #define LF_BITFIELD_32 0x1205
1035 #define LF_METHODLIST_32 0x1206
1036 #define LF_DIMCONU_32 0x1207
1037 #define LF_DIMCONLU_32 0x1208
1038 #define LF_DIMVARU_32 0x1209
1039 #define LF_DIMVARLU_32 0x120a
1040
1041 #define LF_BCLASS 0x0400
1042 #define LF_VBCLASS 0x0401
1043 #define LF_IVBCLASS 0x0402
1044 #define LF_ENUMERATE 0x0403
1045 #define LF_FRIENDFCN 0x0404
1046 #define LF_INDEX 0x0405
1047 #define LF_MEMBER 0x0406
1048 #define LF_STMEMBER 0x0407
1049 #define LF_METHOD 0x0408
1050 #define LF_NESTTYPE 0x0409
1051 #define LF_VFUNCTAB 0x040a
1052 #define LF_FRIENDCLS 0x040b
1053 #define LF_ONEMETHOD 0x040c
1054 #define LF_VFUNCOFF 0x040d
1055 #define LF_NESTTYPEEX 0x040e
1056 #define LF_MEMBERMODIFY 0x040f
1057
1058 #define LF_BCLASS_32 0x1400 /* variants with new 32-bit type indices */
1059 #define LF_VBCLASS_32 0x1401
1060 #define LF_IVBCLASS_32 0x1402
1061 #define LF_FRIENDFCN_32 0x1403
1062 #define LF_INDEX_32 0x1404
1063 #define LF_MEMBER_32 0x1405
1064 #define LF_STMEMBER_32 0x1406
1065 #define LF_METHOD_32 0x1407
1066 #define LF_NESTTYPE_32 0x1408
1067 #define LF_VFUNCTAB_32 0x1409
1068 #define LF_FRIENDCLS_32 0x140a
1069 #define LF_ONEMETHOD_32 0x140b
1070 #define LF_VFUNCOFF_32 0x140c
1071 #define LF_NESTTYPEEX_32 0x140d
1072
1073 #define LF_NUMERIC 0x8000 /* numeric leaf types */
1074 #define LF_CHAR 0x8000
1075 #define LF_SHORT 0x8001
1076 #define LF_USHORT 0x8002
1077 #define LF_LONG 0x8003
1078 #define LF_ULONG 0x8004
1079 #define LF_REAL32 0x8005
1080 #define LF_REAL64 0x8006
1081 #define LF_REAL80 0x8007
1082 #define LF_REAL128 0x8008
1083 #define LF_QUADWORD 0x8009
1084 #define LF_UQUADWORD 0x800a
1085 #define LF_REAL48 0x800b
1086 #define LF_COMPLEX32 0x800c
1087 #define LF_COMPLEX64 0x800d
1088 #define LF_COMPLEX80 0x800e
1089 #define LF_COMPLEX128 0x800f
1090 #define LF_VARSTRING 0x8010
1091
1092
1093
1094 #define MAX_BUILTIN_TYPES 0x480
1095 static struct datatype * cv_basic_types[MAX_BUILTIN_TYPES];
1096 static unsigned int num_cv_defined_types = 0;
1097 static struct datatype **cv_defined_types = NULL;
1098
1099 void
1100 DEBUG_InitCVDataTypes(void)
1101 {
1102 /*
1103 * These are the common builtin types that are used by VC++.
1104 */
1105 cv_basic_types[T_NOTYPE] = NULL;
1106 cv_basic_types[T_ABS] = NULL;
1107 cv_basic_types[T_VOID] = DEBUG_NewDataType(DT_BASIC, "void");
1108 cv_basic_types[T_CHAR] = DEBUG_NewDataType(DT_BASIC, "char");
1109 cv_basic_types[T_SHORT] = DEBUG_NewDataType(DT_BASIC, "short int");
1110 cv_basic_types[T_LONG] = DEBUG_NewDataType(DT_BASIC, "long int");
1111 cv_basic_types[T_QUAD] = DEBUG_NewDataType(DT_BASIC, "long long int");
1112 cv_basic_types[T_UCHAR] = DEBUG_NewDataType(DT_BASIC, "unsigned char");
1113 cv_basic_types[T_USHORT] = DEBUG_NewDataType(DT_BASIC, "short unsigned int");
1114 cv_basic_types[T_ULONG] = DEBUG_NewDataType(DT_BASIC, "long unsigned int");
1115 cv_basic_types[T_UQUAD] = DEBUG_NewDataType(DT_BASIC, "long long unsigned int");
1116 cv_basic_types[T_REAL32] = DEBUG_NewDataType(DT_BASIC, "float");
1117 cv_basic_types[T_REAL64] = DEBUG_NewDataType(DT_BASIC, "double");
1118 cv_basic_types[T_RCHAR] = DEBUG_NewDataType(DT_BASIC, "char");
1119 cv_basic_types[T_WCHAR] = DEBUG_NewDataType(DT_BASIC, "short");
1120 cv_basic_types[T_INT4] = DEBUG_NewDataType(DT_BASIC, "int");
1121 cv_basic_types[T_UINT4] = DEBUG_NewDataType(DT_BASIC, "unsigned int");
1122
1123 cv_basic_types[T_32PVOID] = DEBUG_FindOrMakePointerType(cv_basic_types[T_VOID]);
1124 cv_basic_types[T_32PCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_CHAR]);
1125 cv_basic_types[T_32PSHORT] = DEBUG_FindOrMakePointerType(cv_basic_types[T_SHORT]);
1126 cv_basic_types[T_32PLONG] = DEBUG_FindOrMakePointerType(cv_basic_types[T_LONG]);
1127 cv_basic_types[T_32PQUAD] = DEBUG_FindOrMakePointerType(cv_basic_types[T_QUAD]);
1128 cv_basic_types[T_32PUCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UCHAR]);
1129 cv_basic_types[T_32PUSHORT] = DEBUG_FindOrMakePointerType(cv_basic_types[T_USHORT]);
1130 cv_basic_types[T_32PULONG] = DEBUG_FindOrMakePointerType(cv_basic_types[T_ULONG]);
1131 cv_basic_types[T_32PUQUAD] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UQUAD]);
1132 cv_basic_types[T_32PREAL32] = DEBUG_FindOrMakePointerType(cv_basic_types[T_REAL32]);
1133 cv_basic_types[T_32PREAL64] = DEBUG_FindOrMakePointerType(cv_basic_types[T_REAL64]);
1134 cv_basic_types[T_32PRCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_RCHAR]);
1135 cv_basic_types[T_32PWCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_WCHAR]);
1136 cv_basic_types[T_32PINT4] = DEBUG_FindOrMakePointerType(cv_basic_types[T_INT4]);
1137 cv_basic_types[T_32PUINT4] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UINT4]);
1138 }
1139
1140
1141 static int
1142 numeric_leaf( int *value, unsigned short int *leaf )
1143 {
1144 unsigned short int type = *leaf++;
1145 int length = 2;
1146
1147 if ( type < LF_NUMERIC )
1148 {
1149 *value = type;
1150 }
1151 else
1152 {
1153 switch ( type )
1154 {
1155 case LF_CHAR:
1156 length += 1;
1157 *value = *(char *)leaf;
1158 break;
1159
1160 case LF_SHORT:
1161 length += 2;
1162 *value = *(short *)leaf;
1163 break;
1164
1165 case LF_USHORT:
1166 length += 2;
1167 *value = *(unsigned short *)leaf;
1168 break;
1169
1170 case LF_LONG:
1171 length += 4;
1172 *value = *(int *)leaf;
1173 break;
1174
1175 case LF_ULONG:
1176 length += 4;
1177 *value = *(unsigned int *)leaf;
1178 break;
1179
1180 case LF_QUADWORD:
1181 case LF_UQUADWORD:
1182 length += 8;
1183 *value = 0; /* FIXME */
1184 break;
1185
1186 case LF_REAL32:
1187 length += 4;
1188 *value = 0; /* FIXME */
1189 break;
1190
1191 case LF_REAL48:
1192 length += 6;
1193 *value = 0; /* FIXME */
1194 break;
1195
1196 case LF_REAL64:
1197 length += 8;
1198 *value = 0; /* FIXME */
1199 break;
1200
1201 case LF_REAL80:
1202 length += 10;
1203 *value = 0; /* FIXME */
1204 break;
1205
1206 case LF_REAL128:
1207 length += 16;
1208 *value = 0; /* FIXME */
1209 break;
1210
1211 case LF_COMPLEX32:
1212 length += 4;
1213 *value = 0; /* FIXME */
1214 break;
1215
1216 case LF_COMPLEX64:
1217 length += 8;
1218 *value = 0; /* FIXME */
1219 break;
1220
1221 case LF_COMPLEX80:
1222 length += 10;
1223 *value = 0; /* FIXME */
1224 break;
1225
1226 case LF_COMPLEX128:
1227 length += 16;
1228 *value = 0; /* FIXME */
1229 break;
1230
1231 case LF_VARSTRING:
1232 length += 2 + *leaf;
1233 *value = 0; /* FIXME */
1234 break;
1235
1236 default:
1237 DEBUG_Printf( DBG_CHN_MESG, "Unknown numeric leaf type %04x\n", type );
1238 *value = 0;
1239 break;
1240 }
1241 }
1242
1243 return length;
1244 }
1245
1246 static char *
1247 terminate_string( unsigned char *name )
1248 {
1249 static char symname[256];
1250
1251 int namelen = name[0];
1252 assert( namelen >= 0 && namelen < 256 );
1253
1254 memcpy( symname, name+1, namelen );
1255 symname[namelen] = '\0';
1256
1257 if ( !*symname || strcmp( symname, "__unnamed" ) == 0 )
1258 return NULL;
1259 else
1260 return symname;
1261 }
1262
1263 static
1264 struct datatype * DEBUG_GetCVType(unsigned int typeno)
1265 {
1266 struct datatype * dt = NULL;
1267
1268 /*
1269 * Convert Codeview type numbers into something we can grok internally.
1270 * Numbers < 0x1000 are all fixed builtin types. Numbers from 0x1000 and
1271 * up are all user defined (structs, etc).
1272 */
1273 if ( typeno < 0x1000 )
1274 {
1275 if ( typeno < MAX_BUILTIN_TYPES )
1276 dt = cv_basic_types[typeno];
1277 }
1278 else
1279 {
1280 if ( typeno - 0x1000 < num_cv_defined_types )
1281 dt = cv_defined_types[typeno - 0x1000];
1282 }
1283
1284 return dt;
1285 }
1286
1287 static int
1288 DEBUG_AddCVType( unsigned int typeno, struct datatype *dt )
1289 {
1290 while ( typeno - 0x1000 >= num_cv_defined_types )
1291 {
1292 num_cv_defined_types += 0x100;
1293 cv_defined_types = (struct datatype **)
1294 DBG_realloc( cv_defined_types,
1295 num_cv_defined_types * sizeof(struct datatype *) );
1296
1297 memset( cv_defined_types + num_cv_defined_types - 0x100,
1298 0,
1299 0x100 * sizeof(struct datatype *) );
1300
1301 if ( cv_defined_types == NULL )
1302 return FALSE;
1303 }
1304
1305 cv_defined_types[ typeno - 0x1000 ] = dt;
1306 return TRUE;
1307 }
1308
1309 static void
1310 DEBUG_ClearTypeTable( void )
1311 {
1312 if ( cv_defined_types )
1313 DBG_free( cv_defined_types );
1314
1315 cv_defined_types = NULL;
1316 num_cv_defined_types = 0;
1317 }
1318
1319 static int
1320 DEBUG_AddCVType_Pointer( unsigned int typeno, unsigned int datatype )
1321 {
1322 struct datatype *dt =
1323 DEBUG_FindOrMakePointerType( DEBUG_GetCVType( datatype ) );
1324
1325 return DEBUG_AddCVType( typeno, dt );
1326 }
1327
1328 static int
1329 DEBUG_AddCVType_Array( unsigned int typeno, char *name,
1330 unsigned int elemtype, unsigned int arr_len )
1331 {
1332 struct datatype *dt = DEBUG_NewDataType( DT_ARRAY, name );
1333 struct datatype *elem = DEBUG_GetCVType( elemtype );
1334 unsigned int elem_size = elem? DEBUG_GetObjectSize( elem ) : 0;
1335 unsigned int arr_max = elem_size? arr_len / elem_size : 0;
1336
1337 DEBUG_SetArrayParams( dt, 0, arr_max, elem );
1338 return DEBUG_AddCVType( typeno, dt );
1339 }
1340
1341 static int
1342 DEBUG_AddCVType_Bitfield( unsigned int typeno,
1343 unsigned int bitoff, unsigned int nbits,
1344 unsigned int basetype )
1345 {
1346 struct datatype *dt = DEBUG_NewDataType( DT_BITFIELD, NULL );
1347 struct datatype *base = DEBUG_GetCVType( basetype );
1348
1349 DEBUG_SetBitfieldParams( dt, bitoff, nbits, base );
1350 return DEBUG_AddCVType( typeno, dt );
1351 }
1352
1353 static int
1354 DEBUG_AddCVType_EnumFieldList( unsigned int typeno, unsigned char *list, int len )
1355 {
1356 struct datatype *dt = DEBUG_NewDataType( DT_ENUM, NULL );
1357 unsigned char *ptr = list;
1358
1359 while ( ptr - list < len )
1360 {
1361 union codeview_fieldtype *type = (union codeview_fieldtype *)ptr;
1362
1363 if ( *ptr >= 0xf0 ) /* LF_PAD... */
1364 {
1365 ptr += *ptr & 0x0f;
1366 continue;
1367 }
1368
1369 switch ( type->generic.id )
1370 {
1371 case LF_ENUMERATE:
1372 {
1373 int value, vlen = numeric_leaf( &value, &type->enumerate.value );
1374 unsigned char *name = (unsigned char *)&type->enumerate.value + vlen;
1375
1376 DEBUG_AddStructElement( dt, terminate_string( name ),
1377 NULL, value, 0 );
1378
1379 ptr += 2 + 2 + vlen + (1 + name[0]);
1380 break;
1381 }
1382
1383 default:
1384 DEBUG_Printf( DBG_CHN_MESG, "Unhandled type %04x in ENUM field list\n",
1385 type->generic.id );
1386 return FALSE;
1387 }
1388 }
1389
1390 return DEBUG_AddCVType( typeno, dt );
1391 }
1392
1393 static int
1394 DEBUG_AddCVType_StructFieldList( unsigned int typeno, unsigned char *list, int len )
1395 {
1396 struct datatype *dt = DEBUG_NewDataType( DT_STRUCT, NULL );
1397 unsigned char *ptr = list;
1398
1399 while ( ptr - list < len )
1400 {
1401 union codeview_fieldtype *type = (union codeview_fieldtype *)ptr;
1402
1403 if ( *ptr >= 0xf0 ) /* LF_PAD... */
1404 {
1405 ptr += *ptr & 0x0f;
1406 continue;
1407 }
1408
1409 switch ( type->generic.id )
1410 {
1411 case LF_BCLASS:
1412 {
1413 int offset, olen = numeric_leaf( &offset, &type->bclass.offset );
1414
1415 /* FIXME: ignored for now */
1416
1417 ptr += 2 + 2 + 2 + olen;
1418 break;
1419 }
1420
1421 case LF_BCLASS_32:
1422 {
1423 int offset, olen = numeric_leaf( &offset, &type->bclass32.offset );
1424
1425 /* FIXME: ignored for now */
1426
1427 ptr += 2 + 2 + 4 + olen;
1428 break;
1429 }
1430
1431 case LF_VBCLASS:
1432 case LF_IVBCLASS:
1433 {
1434 int vbpoff, vbplen = numeric_leaf( &vbpoff, &type->vbclass.vbpoff );
1435 unsigned short int *p_vboff = (unsigned short int *)((char *)&type->vbclass.vbpoff + vbpoff);
1436 int vpoff, vplen = numeric_leaf( &vpoff, p_vboff );
1437
1438 /* FIXME: ignored for now */
1439
1440 ptr += 2 + 2 + 2 + 2 + vbplen + vplen;
1441 break;
1442 }
1443
1444 case LF_VBCLASS_32:
1445 case LF_IVBCLASS_32:
1446 {
1447 int vbpoff, vbplen = numeric_leaf( &vbpoff, &type->vbclass32.vbpoff );
1448 unsigned short int *p_vboff = (unsigned short int *)((char *)&type->vbclass32.vbpoff + vbpoff);
1449 int vpoff, vplen = numeric_leaf( &vpoff, p_vboff );
1450
1451 /* FIXME: ignored for now */
1452
1453 ptr += 2 + 2 + 4 + 4 + vbplen + vplen;
1454 break;
1455 }
1456
1457 case LF_MEMBER:
1458 {
1459 int offset, olen = numeric_leaf( &offset, &type->member.offset );
1460 unsigned char *name = (unsigned char *)&type->member.offset + olen;
1461
1462 struct datatype *subtype = DEBUG_GetCVType( type->member.type );
1463 int elem_size = subtype? DEBUG_GetObjectSize( subtype ) : 0;
1464
1465 DEBUG_AddStructElement( dt, terminate_string( name ),
1466 subtype, offset << 3, elem_size << 3 );
1467
1468 ptr += 2 + 2 + 2 + olen + (1 + name[0]);
1469 break;
1470 }
1471
1472 case LF_MEMBER_32:
1473 {
1474 int offset, olen = numeric_leaf( &offset, &type->member32.offset );
1475 unsigned char *name = (unsigned char *)&type->member32.offset + olen;
1476
1477 struct datatype *subtype = DEBUG_GetCVType( type->member32.type );
1478 int elem_size = subtype? DEBUG_GetObjectSize( subtype ) : 0;
1479
1480 DEBUG_AddStructElement( dt, terminate_string( name ),
1481 subtype, offset << 3, elem_size << 3 );
1482
1483 ptr += 2 + 2 + 4 + olen + (1 + name[0]);
1484 break;
1485 }
1486
1487 case LF_STMEMBER:
1488 /* FIXME: ignored for now */
1489 ptr += 2 + 2 + 2 + (1 + type->stmember.name[0]);
1490 break;
1491
1492 case LF_STMEMBER_32:
1493 /* FIXME: ignored for now */
1494 ptr += 2 + 4 + 2 + (1 + type->stmember32.name[0]);
1495 break;
1496
1497 case LF_METHOD:
1498 /* FIXME: ignored for now */
1499 ptr += 2 + 2 + 2 + (1 + type->method.name[0]);
1500 break;
1501
1502 case LF_METHOD_32:
1503 /* FIXME: ignored for now */
1504 ptr += 2 + 2 + 4 + (1 + type->method32.name[0]);
1505 break;
1506
1507 case LF_NESTTYPE:
1508 /* FIXME: ignored for now */
1509 ptr += 2 + 2 + (1 + type->nesttype.name[0]);
1510 break;
1511
1512 case LF_NESTTYPE_32:
1513 /* FIXME: ignored for now */
1514 ptr += 2 + 2 + 4 + (1 + type->nesttype32.name[0]);
1515 break;
1516
1517 case LF_VFUNCTAB:
1518 /* FIXME: ignored for now */
1519 ptr += 2 + 2;
1520 break;
1521
1522 case LF_VFUNCTAB_32:
1523 /* FIXME: ignored for now */
1524 ptr += 2 + 2 + 4;
1525 break;
1526
1527 case LF_ONEMETHOD:
1528 /* FIXME: ignored for now */
1529 switch ( (type->onemethod.attribute >> 2) & 7 )
1530 {
1531 case 4: case 6: /* (pure) introducing virtual method */
1532 ptr += 2 + 2 + 2 + 4 + (1 + type->onemethod_virt.name[0]);
1533 break;
1534
1535 default:
1536 ptr += 2 + 2 + 2 + (1 + type->onemethod.name[0]);
1537 break;
1538 }
1539 break;
1540
1541 case LF_ONEMETHOD_32:
1542 /* FIXME: ignored for now */
1543 switch ( (type->onemethod32.attribute >> 2) & 7 )
1544 {
1545 case 4: case 6: /* (pure) introducing virtual method */
1546 ptr += 2 + 2 + 4 + 4 + (1 + type->onemethod32_virt.name[0]);
1547 break;
1548
1549 default:
1550 ptr += 2 + 2 + 4 + (1 + type->onemethod32.name[0]);
1551 break;
1552 }
1553 break;
1554
1555 default:
1556 DEBUG_Printf( DBG_CHN_MESG, "Unhandled type %04x in STRUCT field list\n",
1557 type->generic.id );
1558 return FALSE;
1559 }
1560 }
1561
1562 return DEBUG_AddCVType( typeno, dt );
1563 }
1564
1565 static int
1566 DEBUG_AddCVType_Enum( unsigned int typeno, char *name, unsigned int fieldlist )
1567 {
1568 struct datatype *dt = DEBUG_NewDataType( DT_ENUM, name );
1569 struct datatype *list = DEBUG_GetCVType( fieldlist );
1570
1571 if ( list )
1572 DEBUG_CopyFieldlist( dt, list );
1573
1574 return DEBUG_AddCVType( typeno, dt );
1575 }
1576
1577 static int
1578 DEBUG_AddCVType_Struct( unsigned int typeno, char *name, int structlen, unsigned int fieldlist )
1579 {
1580 struct datatype *dt = DEBUG_NewDataType( DT_STRUCT, name );
1581 struct datatype *list = DEBUG_GetCVType( fieldlist );
1582
1583 if ( list )
1584 {
1585 DEBUG_SetStructSize( dt, structlen );
1586 DEBUG_CopyFieldlist( dt, list );
1587 }
1588
1589 return DEBUG_AddCVType( typeno, dt );
1590 }
1591
1592 static int
1593 DEBUG_ParseTypeTable( char *table, int len )
1594 {
1595 unsigned int curr_type = 0x1000;
1596 char *ptr = table;
1597
1598 while ( ptr - table < len )
1599 {
1600 union codeview_type *type = (union codeview_type *) ptr;
1601 int retv = TRUE;
1602
1603 switch ( type->generic.id )
1604 {
1605 case LF_POINTER:
1606 retv = DEBUG_AddCVType_Pointer( curr_type, type->pointer.datatype );
1607 break;
1608 case LF_POINTER_32:
1609 retv = DEBUG_AddCVType_Pointer( curr_type, type->pointer32.datatype );
1610 break;
1611
1612 case LF_ARRAY:
1613 {
1614 int arrlen, alen = numeric_leaf( &arrlen, &type->array.arrlen );
1615 unsigned char *name = (unsigned char *)&type->array.arrlen + alen;
1616
1617 retv = DEBUG_AddCVType_Array( curr_type, terminate_string( name ),
1618 type->array.elemtype, arrlen );
1619 break;
1620 }
1621 case LF_ARRAY_32:
1622 {
1623 int arrlen, alen = numeric_leaf( &arrlen, &type->array32.arrlen );
1624 unsigned char *name = (unsigned char *)&type->array32.arrlen + alen;
1625
1626 retv = DEBUG_AddCVType_Array( curr_type, terminate_string( name ),
1627 type->array32.elemtype, type->array32.arrlen );
1628 break;
1629 }
1630
1631 case LF_BITFIELD:
1632 retv = DEBUG_AddCVType_Bitfield( curr_type, type->bitfield.bitoff,
1633 type->bitfield.nbits,
1634 type->bitfield.type );
1635 break;
1636 case LF_BITFIELD_32:
1637 retv = DEBUG_AddCVType_Bitfield( curr_type, type->bitfield32.bitoff,
1638 type->bitfield32.nbits,
1639 type->bitfield32.type );
1640 break;
1641
1642 case LF_FIELDLIST:
1643 case LF_FIELDLIST_32:
1644 {
1645 /*
1646 * A 'field list' is a CodeView-specific data type which doesn't
1647 * directly correspond to any high-level data type. It is used
1648 * to hold the collection of members of a struct, class, union
1649 * or enum type. The actual definition of that type will follow
1650 * later, and refer to the field list definition record.
1651 *
1652 * As we don't have a field list type ourselves, we look ahead
1653 * in the field list to try to find out whether this field list
1654 * will be used for an enum or struct type, and create a dummy
1655 * type of the corresponding sort. Later on, the definition of
1656 * the 'real' type will copy the member / enumeration data.
1657 */
1658
1659 char *list = type->fieldlist.list;
1660 int len = (ptr + type->generic.len + 2) - list;
1661
1662 if ( ((union codeview_fieldtype *)list)->generic.id == LF_ENUMERATE )
1663 retv = DEBUG_AddCVType_EnumFieldList( curr_type, list, len );
1664 else
1665 retv = DEBUG_AddCVType_StructFieldList( curr_type, list, len );
1666 break;
1667 }
1668
1669 case LF_STRUCTURE:
1670 case LF_CLASS:
1671 {
1672 int structlen, slen = numeric_leaf( &structlen, &type->structure.structlen );
1673 unsigned char *name = (unsigned char *)&type->structure.structlen + slen;
1674
1675 retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ),
1676 structlen, type->structure.fieldlist );
1677 break;
1678 }
1679 case LF_STRUCTURE_32:
1680 case LF_CLASS_32:
1681 {
1682 int structlen, slen = numeric_leaf( &structlen, &type->structure32.structlen );
1683 unsigned char *name = (unsigned char *)&type->structure32.structlen + slen;
1684
1685 retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ),
1686 structlen, type->structure32.fieldlist );
1687 break;
1688 }
1689
1690 case LF_UNION:
1691 {
1692 int un_len, ulen = numeric_leaf( &un_len, &type->t_union.un_len );
1693 unsigned char *name = (unsigned char *)&type->t_union.un_len + ulen;
1694
1695 retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ),
1696 un_len, type->t_union.fieldlist );
1697 break;
1698 }
1699 case LF_UNION_32:
1700 {
1701 int un_len, ulen = numeric_leaf( &un_len, &type->t_union32.un_len );
1702 unsigned char *name = (unsigned char *)&type->t_union32.un_len + ulen;
1703
1704 retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ),
1705 un_len, type->t_union32.fieldlist );
1706 break;
1707 }
1708
1709 case LF_ENUM:
1710 retv = DEBUG_AddCVType_Enum( curr_type, terminate_string( type->enumeration.name ),
1711 type->enumeration.field );
1712 break;
1713 case LF_ENUM_32:
1714 retv = DEBUG_AddCVType_Enum( curr_type, terminate_string( type->enumeration32.name ),
1715 type->enumeration32.field );
1716 break;
1717
1718 default:
1719 break;
1720 }
1721
1722 if ( !retv )
1723 return FALSE;
1724
1725 curr_type++;
1726 ptr += type->generic.len + 2;
1727 }
1728
1729 return TRUE;
1730 }
1731
1732
1733 /*========================================================================
1734 * Process CodeView line number information.
1735 */
1736
1737 union any_size
1738 {
1739 char * c;
1740 short * s;
1741 int * i;
1742 unsigned int * ui;
1743 };
1744
1745 struct startend
1746 {
1747 unsigned int start;
1748 unsigned int end;
1749 };
1750
1751 struct codeview_linetab_hdr
1752 {
1753 unsigned int nline;
1754 unsigned int segno;
1755 unsigned int start;
1756 unsigned int end;
1757 char * sourcefile;
1758 unsigned short * linetab;
1759 unsigned int * offtab;
1760 };
1761
1762 static struct codeview_linetab_hdr *
1763 DEBUG_SnarfLinetab(char * linetab,
1764 int size)
1765 {
1766 int file_segcount;
1767 char filename[PATH_MAX];
1768 unsigned int * filetab;
1769 char * fn;
1770 int i;
1771 int k;
1772 struct codeview_linetab_hdr * lt_hdr;
1773 unsigned int * lt_ptr;
1774 int nfile;
1775 int nseg;
1776 union any_size pnt;
1777 union any_size pnt2;
1778 struct startend * start;
1779 int this_seg;
1780
1781 /*
1782 * Now get the important bits.
1783 */
1784 pnt.c = linetab;
1785 nfile = *pnt.s++;
1786 nseg = *pnt.s++;
1787
1788 filetab = (unsigned int *) pnt.c;
1789
1790 /*
1791 * Now count up the number of segments in the file.
1792 */
1793 nseg = 0;
1794 for(i=0; i<nfile; i++)
1795 {
1796 pnt2.c = linetab + filetab[i];
1797 nseg += *pnt2.s;
1798 }
1799
1800 /*
1801 * Next allocate the header we will be returning.
1802 * There is one header for each segment, so that we can reach in
1803 * and pull bits as required.
1804 */
1805 lt_hdr = (struct codeview_linetab_hdr *)
1806 DBG_alloc((nseg + 1) * sizeof(*lt_hdr));
1807 if( lt_hdr == NULL )
1808 {
1809 goto leave;
1810 }
1811
1812 memset(lt_hdr, 0, sizeof(*lt_hdr) * (nseg+1));
1813
1814 /*
1815 * Now fill the header we will be returning, one for each segment.
1816 * Note that this will basically just contain pointers into the existing
1817 * line table, and we do not actually copy any additional information
1818 * or allocate any additional memory.
1819 */
1820
1821 this_seg = 0;
1822 for(i=0; i<nfile; i++)
1823 {
1824 /*
1825 * Get the pointer into the segment information.
1826 */
1827 pnt2.c = linetab + filetab[i];
1828 file_segcount = *pnt2.s;
1829
1830 pnt2.ui++;
1831 lt_ptr = (unsigned int *) pnt2.c;
1832 start = (struct startend *) (lt_ptr + file_segcount);
1833
1834 /*
1835 * Now snarf the filename for all of the segments for this file.
1836 */
1837 fn = (unsigned char *) (start + file_segcount);
1838 memset(filename, 0, sizeof(filename));
1839 memcpy(filename, fn + 1, *fn);
1840 fn = DBG_strdup(filename);
1841
1842 for(k = 0; k < file_segcount; k++, this_seg++)
1843 {
1844 pnt2.c = linetab + lt_ptr[k];
1845 lt_hdr[this_seg].start = start[k].start;
1846 lt_hdr[this_seg].end = start[k].end;
1847 lt_hdr[this_seg].sourcefile = fn;
1848 lt_hdr[this_seg].segno = *pnt2.s++;
1849 lt_hdr[this_seg].nline = *pnt2.s++;
1850 lt_hdr[this_seg].offtab = pnt2.ui;
1851 lt_hdr[this_seg].linetab = (unsigned short *)
1852 (pnt2.ui + lt_hdr[this_seg].nline);
1853 }
1854 }
1855
1856 leave:
1857
1858 return lt_hdr;
1859
1860 }
1861
1862
1863 /*========================================================================
1864 * Process CodeView symbol information.
1865 */
1866
1867 union codeview_symbol
1868 {
1869 struct
1870 {
1871 short int len;
1872 short int id;
1873 } generic;
1874
1875 struct
1876 {
1877 short int len;
1878 short int id;
1879 unsigned int offset;
1880 unsigned short seg;
1881 unsigned short symtype;
1882 unsigned char namelen;
1883 unsigned char name[1];
1884 } data;
1885
1886 struct
1887 {
1888 short int len;
1889 short int id;
1890 unsigned int symtype;
1891 unsigned int offset;
1892 unsigned short seg;
1893 unsigned char namelen;
1894 unsigned char name[1];
1895 } data32;
1896
1897 struct
1898 {
1899 short int len;
1900 short int id;
1901 unsigned int pparent;
1902 unsigned int pend;
1903 unsigned int next;
1904 unsigned int offset;
1905 unsigned short segment;
1906 unsigned short thunk_len;
1907 unsigned char thtype;
1908 unsigned char namelen;
1909 unsigned char name[1];
1910 } thunk;
1911
1912 struct
1913 {
1914 short int len;
1915 short int id;
1916 unsigned int pparent;
1917 unsigned int pend;
1918 unsigned int next;
1919 unsigned int proc_len;
1920 unsigned int debug_start;
1921 unsigned int debug_end;
1922 unsigned int offset;
1923 unsigned short segment;
1924 unsigned short proctype;
1925 unsigned char flags;
1926 unsigned char namelen;
1927 unsigned char name[1];
1928 } proc;
1929
1930 struct
1931 {
1932 short int len;
1933 short int id;
1934 unsigned int pparent;
1935 unsigned int pend;
1936 unsigned int next;
1937 unsigned int proc_len;
1938 unsigned int debug_start;
1939 unsigned int debug_end;
1940 unsigned int proctype;
1941 unsigned int offset;
1942 unsigned short segment;
1943 unsigned char flags;
1944 unsigned char namelen;
1945 unsigned char name[1];
1946 } proc32;
1947
1948 struct
1949 {
1950 short int len; /* Total length of this entry */
1951 short int id; /* Always S_BPREL32 */
1952 unsigned int offset; /* Stack offset relative to BP */
1953 unsigned short symtype;
1954 unsigned char namelen;
1955 unsigned char name[1];
1956 } stack;
1957
1958 struct
1959 {
1960 short int len; /* Total length of this entry */
1961 short int id; /* Always S_BPREL32 */
1962 unsigned int offset; /* Stack offset relative to BP */
1963 unsigned int symtype;
1964 unsigned char namelen;
1965 unsigned char name[1];
1966 } stack32;
1967
1968 };
1969
1970 #define S_COMPILE 0x0001
1971 #define S_REGISTER 0x0002
1972 #define S_CONSTANT 0x0003
1973 #define S_UDT 0x0004
1974 #define S_SSEARCH 0x0005
1975 #define S_END 0x0006
1976 #define S_SKIP 0x0007
1977 #define S_CVRESERVE 0x0008
1978 #define S_OBJNAME 0x0009
1979 #define S_ENDARG 0x000a
1980 #define S_COBOLUDT 0x000b
1981 #define S_MANYREG 0x000c
1982 #define S_RETURN 0x000d
1983 #define S_ENTRYTHIS 0x000e
1984
1985 #define S_BPREL 0x0200
1986 #define S_LDATA 0x0201
1987 #define S_GDATA 0x0202
1988 #define S_PUB 0x0203
1989 #define S_LPROC 0x0204
1990 #define S_GPROC 0x0205
1991 #define S_THUNK 0x0206
1992 #define S_BLOCK 0x0207
1993 #define S_WITH 0x0208
1994 #define S_LABEL 0x0209
1995 #define S_CEXMODEL 0x020a
1996 #define S_VFTPATH 0x020b
1997 #define S_REGREL 0x020c
1998 #define S_LTHREAD 0x020d
1999 #define S_GTHREAD 0x020e
2000
2001 #define S_PROCREF 0x0400
2002 #define S_DATAREF 0x0401
2003 #define S_ALIGN 0x0402
2004 #define S_LPROCREF 0x0403
2005
2006 #define S_REGISTER_32 0x1001 /* Variants with new 32-bit type indices */
2007 #define S_CONSTANT_32 0x1002
2008 #define S_UDT_32 0x1003
2009 #define S_COBOLUDT_32 0x1004
2010 #define S_MANYREG_32 0x1005
2011
2012 #define S_BPREL_32 0x1006
2013 #define S_LDATA_32 0x1007
2014 #define S_GDATA_32 0x1008
2015 #define S_PUB_32 0x1009
2016 #define S_LPROC_32 0x100a
2017 #define S_GPROC_32 0x100b
2018 #define S_VFTTABLE_32 0x100c
2019 #define S_REGREL_32 0x100d
2020 #define S_LTHREAD_32 0x100e
2021 #define S_GTHREAD_32 0x100f
2022
2023
2024
2025 static unsigned int
2026 DEBUG_MapCVOffset( DBG_MODULE *module, unsigned int offset )
2027 {
2028 int nomap = module->msc_info->nomap;
2029 OMAP_DATA *omapp = module->msc_info->omapp;
2030 int i;
2031
2032 if ( !nomap || !omapp )
2033 return offset;
2034
2035 /* FIXME: use binary search */
2036 for ( i = 0; i < nomap-1; i++ )
2037 if ( omapp[i].from <= offset && omapp[i+1].from > offset )
2038 return !omapp[i].to? 0 : omapp[i].to + (offset - omapp[i].from);
2039
2040 return 0;
2041 }
2042
2043 static struct name_hash *
2044 DEBUG_AddCVSymbol( DBG_MODULE *module, char *name, int namelen,
2045 int type, unsigned int seg, unsigned int offset,
2046 int size, int cookie, int flags,
2047 struct codeview_linetab_hdr *linetab )
2048 {
2049 int nsect = module->msc_info->nsect;
2050 PIMAGE_SECTION_HEADER sectp = module->msc_info->sectp;
2051
2052 struct name_hash *symbol;
2053 char symname[PATH_MAX];
2054 DBG_VALUE value;
2055
2056 /*
2057 * Some sanity checks
2058 */
2059
2060 if ( !name || !namelen )
2061 return NULL;
2062
2063 if ( !seg || seg > nsect )
2064 return NULL;
2065
2066 /*
2067 * Convert type, address, and symbol name
2068 */
2069 value.type = type? DEBUG_GetCVType( type ) : NULL;
2070 value.cookie = cookie;
2071
2072 value.addr.seg = 0;
2073 value.addr.off = (unsigned int) module->load_addr +
2074 DEBUG_MapCVOffset( module, sectp[seg-1].VirtualAddress + offset );
2075
2076 memcpy( symname, name, namelen );
2077 symname[namelen] = '\0';
2078
2079
2080 /*
2081 * Check whether we have line number information
2082 */
2083 if ( linetab )
2084 {
2085 for ( ; linetab->linetab; linetab++ )
2086 if ( linetab->segno == seg
2087 && linetab->start <= offset
2088 && linetab->end > offset )
2089 break;
2090
2091 if ( !linetab->linetab )
2092 linetab = NULL;
2093 }
2094
2095
2096 /*
2097 * Create Wine symbol record
2098 */
2099 symbol = DEBUG_AddSymbol( symname, &value,
2100 linetab? linetab->sourcefile : NULL, flags );
2101
2102 if ( size )
2103 DEBUG_SetSymbolSize( symbol, size );
2104
2105
2106 /*
2107 * Add line numbers if found
2108 */
2109 if ( linetab )
2110 {
2111 unsigned int i;
2112 for ( i = 0; i < linetab->nline; i++ )
2113 if ( linetab->offtab[i] >= offset
2114 && linetab->offtab[i] < offset + size )
2115 {
2116 DEBUG_AddLineNumber( symbol, linetab->linetab[i],
2117 linetab->offtab[i] - offset );
2118 }
2119 }
2120
2121 return symbol;
2122 }
2123
2124 static struct wine_locals *
2125 DEBUG_AddCVLocal( struct name_hash *func, char *name, int namelen,
2126 int type, int offset )
2127 {
2128 struct wine_locals *local;
2129 char symname[PATH_MAX];
2130
2131 memcpy( symname, name, namelen );
2132 symname[namelen] = '\0';
2133
2134 local = DEBUG_AddLocal( func, 0, offset, 0, 0, symname );
2135 DEBUG_SetLocalSymbolType( local, DEBUG_GetCVType( type ) );
2136
2137 return local;
2138 }
2139
2140 static int
2141 DEBUG_SnarfCodeView( DBG_MODULE *module, LPBYTE root, int offset, int size,
2142 struct codeview_linetab_hdr *linetab )
2143 {
2144 struct name_hash *curr_func = NULL;
2145 int i, length;
2146
2147
2148 /*
2149 * Loop over the different types of records and whenever we
2150 * find something we are interested in, record it and move on.
2151 */
2152 for ( i = offset; i < size; i += length )
2153 {
2154 union codeview_symbol *sym = (union codeview_symbol *)(root + i);
2155 length = sym->generic.len + 2;
2156
2157 switch ( sym->generic.id )
2158 {
2159 /*
2160 * Global and local data symbols. We don't associate these
2161 * with any given source file.
2162 */
2163 case S_GDATA:
2164 case S_LDATA:
2165 case S_PUB:
2166 DEBUG_AddCVSymbol( module, sym->data.name, sym->data.namelen,
2167 sym->data.symtype, sym->data.seg,
2168 sym->data.offset, 0,
2169 DV_TARGET, SYM_WIN32 | SYM_DATA, NULL );
2170 break;
2171 case S_GDATA_32:
2172 case S_LDATA_32:
2173 case S_PUB_32:
2174 DEBUG_AddCVSymbol( module, sym->data32.name, sym->data32.namelen,
2175 sym->data32.symtype, sym->data32.seg,
2176 sym->data32.offset, 0,
2177 DV_TARGET, SYM_WIN32 | SYM_DATA, NULL );
2178 break;
2179
2180 /*
2181 * Sort of like a global function, but it just points
2182 * to a thunk, which is a stupid name for what amounts to
2183 * a PLT slot in the normal jargon that everyone else uses.
2184 */
2185 case S_THUNK:
2186 DEBUG_AddCVSymbol( module, sym->thunk.name, sym->thunk.namelen,
2187 0, sym->thunk.segment,
2188 sym->thunk.offset, sym->thunk.thunk_len,
2189 DV_TARGET, SYM_WIN32 | SYM_FUNC, NULL );
2190 break;
2191
2192 /*
2193 * Global and static functions.
2194 */
2195 case S_GPROC:
2196 case S_LPROC:
2197 DEBUG_Normalize( curr_func );
2198
2199 curr_func = DEBUG_AddCVSymbol( module, sym->proc.name, sym->proc.namelen,
2200 sym->proc.proctype, sym->proc.segment,
2201 sym->proc.offset, sym->proc.proc_len,
2202 DV_TARGET, SYM_WIN32 | SYM_FUNC, linetab );
2203
2204 DEBUG_SetSymbolBPOff( curr_func, sym->proc.debug_start );
2205 break;
2206 case S_GPROC_32:
2207 case S_LPROC_32:
2208 DEBUG_Normalize( curr_func );
2209
2210 curr_func = DEBUG_AddCVSymbol( module, sym->proc32.name, sym->proc32.namelen,
2211 sym->proc32.proctype, sym->proc32.segment,
2212 sym->proc32.offset, sym->proc32.proc_len,
2213 DV_TARGET, SYM_WIN32 | SYM_FUNC, linetab );
2214
2215 DEBUG_SetSymbolBPOff( curr_func, sym->proc32.debug_start );
2216 break;
2217
2218
2219 /*
2220 * Function parameters and stack variables.
2221 */
2222 case S_BPREL:
2223 DEBUG_AddCVLocal( curr_func, sym->stack.name, sym->stack.namelen,
2224 sym->stack.symtype, sym->stack.offset );
2225 break;
2226 case S_BPREL_32:
2227 DEBUG_AddCVLocal( curr_func, sym->stack32.name, sym->stack32.namelen,
2228 sym->stack32.symtype, sym->stack32.offset );
2229 break;
2230
2231
2232 /*
2233 * These are special, in that they are always followed by an
2234 * additional length-prefixed string which is *not* included
2235 * into the symbol length count. We need to skip it.
2236 */
2237 case S_PROCREF:
2238 case S_DATAREF:
2239 case S_LPROCREF:
2240 {
2241 LPBYTE name = (LPBYTE)sym + length;
2242 length += (*name + 1 + 3) & ~3;
2243 break;
2244 }
2245 }
2246 }
2247
2248 DEBUG_Normalize( curr_func );
2249
2250 if ( linetab ) DBG_free(linetab);
2251 return TRUE;
2252 }
2253
2254
2255
2256 /*========================================================================
2257 * Process PDB file.
2258 */
2259
2260 #pragma pack(1)
2261 typedef struct _PDB_FILE
2262 {
2263 DWORD size;
2264 DWORD unknown;
2265
2266 } PDB_FILE, *PPDB_FILE;
2267
2268 typedef struct _PDB_HEADER
2269 {
2270 CHAR ident[40];
2271 DWORD signature;
2272 DWORD blocksize;
2273 WORD freelist;
2274 WORD total_alloc;
2275 PDB_FILE toc;
2276 WORD toc_block[ 1 ];
2277
2278 } PDB_HEADER, *PPDB_HEADER;
2279
2280 typedef struct _PDB_TOC
2281 {
2282 DWORD nFiles;
2283 PDB_FILE file[ 1 ];
2284
2285 } PDB_TOC, *PPDB_TOC;
2286
2287 typedef struct _PDB_ROOT
2288 {
2289 DWORD version;
2290 DWORD TimeDateStamp;
2291 DWORD unknown;
2292 DWORD cbNames;
2293 CHAR names[ 1 ];
2294
2295 } PDB_ROOT, *PPDB_ROOT;
2296
2297 typedef struct _PDB_TYPES_OLD
2298 {
2299 DWORD version;
2300 WORD first_index;
2301 WORD last_index;
2302 DWORD type_size;
2303 WORD file;
2304 WORD pad;
2305
2306 } PDB_TYPES_OLD, *PPDB_TYPES_OLD;
2307
2308 typedef struct _PDB_TYPES
2309 {
2310 DWORD version;
2311 DWORD type_offset;
2312 DWORD first_index;
2313 DWORD last_index;
2314 DWORD type_size;
2315 WORD file;
2316 WORD pad;
2317 DWORD hash_size;
2318 DWORD hash_base;
2319 DWORD hash_offset;
2320 DWORD hash_len;
2321 DWORD search_offset;
2322 DWORD search_len;
2323 DWORD unknown_offset;
2324 DWORD unknown_len;
2325
2326 } PDB_TYPES, *PPDB_TYPES;
2327
2328 typedef struct _PDB_SYMBOL_RANGE
2329 {
2330 WORD segment;
2331 WORD pad1;
2332 DWORD offset;
2333 DWORD size;
2334 DWORD characteristics;
2335 WORD index;
2336 WORD pad2;
2337
2338 } PDB_SYMBOL_RANGE, *PPDB_SYMBOL_RANGE;
2339
2340 typedef struct _PDB_SYMBOL_RANGE_EX
2341 {
2342 WORD segment;
2343 WORD pad1;
2344 DWORD offset;
2345 DWORD size;
2346 DWORD characteristics;
2347 WORD index;
2348 WORD pad2;
2349 DWORD timestamp;
2350 DWORD unknown;
2351
2352 } PDB_SYMBOL_RANGE_EX, *PPDB_SYMBOL_RANGE_EX;
2353
2354 typedef struct _PDB_SYMBOL_FILE
2355 {
2356 DWORD unknown1;
2357 PDB_SYMBOL_RANGE range;
2358 WORD flag;
2359 WORD file;
2360 DWORD symbol_size;
2361 DWORD lineno_size;
2362 DWORD unknown2;
2363 DWORD nSrcFiles;
2364 DWORD attribute;
2365 CHAR filename[ 1 ];
2366
2367 } PDB_SYMBOL_FILE, *PPDB_SYMBOL_FILE;
2368
2369 typedef struct _PDB_SYMBOL_FILE_EX
2370 {
2371 DWORD unknown1;
2372 PDB_SYMBOL_RANGE_EX range;
2373 WORD flag;
2374 WORD file;
2375 DWORD symbol_size;
2376 DWORD lineno_size;
2377 DWORD unknown2;
2378 DWORD nSrcFiles;
2379 DWORD attribute;
2380 DWORD reserved[ 2 ];
2381 CHAR filename[ 1 ];
2382
2383 } PDB_SYMBOL_FILE_EX, *PPDB_SYMBOL_FILE_EX;
2384
2385 typedef struct _PDB_SYMBOL_SOURCE
2386 {
2387 WORD nModules;
2388 WORD nSrcFiles;
2389 WORD table[ 1 ];
2390
2391 } PDB_SYMBOL_SOURCE, *PPDB_SYMBOL_SOURCE;
2392
2393 typedef struct _PDB_SYMBOL_IMPORT
2394 {
2395 DWORD unknown1;
2396 DWORD unknown2;
2397 DWORD TimeDateStamp;
2398 DWORD nRequests;
2399 CHAR filename[ 1 ];
2400
2401 } PDB_SYMBOL_IMPORT, *PPDB_SYMBOL_IMPORT;
2402
2403 typedef struct _PDB_SYMBOLS_OLD
2404 {
2405 WORD hash1_file;
2406 WORD hash2_file;
2407 WORD gsym_file;
2408 WORD pad;
2409 DWORD module_size;
2410 DWORD offset_size;
2411 DWORD hash_size;
2412 DWORD srcmodule_size;
2413
2414 } PDB_SYMBOLS_OLD, *PPDB_SYMBOLS_OLD;
2415
2416 typedef struct _PDB_SYMBOLS
2417 {
2418 DWORD signature;
2419 DWORD version;
2420 DWORD unknown;
2421 DWORD hash1_file;
2422 DWORD hash2_file;
2423 DWORD gsym_file;
2424 DWORD module_size;
2425 DWORD offset_size;
2426 DWORD hash_size;
2427 DWORD srcmodule_size;
2428 DWORD pdbimport_size;
2429 DWORD resvd[ 5 ];
2430
2431 } PDB_SYMBOLS, *PPDB_SYMBOLS;
2432 #pragma pack()
2433
2434
2435 static void *pdb_read( LPBYTE image, WORD *block_list, int size )
2436 {
2437 PPDB_HEADER pdb = (PPDB_HEADER)image;
2438 int i, nBlocks;
2439 LPBYTE buffer;
2440
2441 if ( !size ) return NULL;
2442
2443 nBlocks = (size + pdb->blocksize-1) / pdb->blocksize;
2444 buffer = DBG_alloc( nBlocks * pdb->blocksize );
2445
2446 for ( i = 0; i < nBlocks; i++ )
2447 memcpy( buffer + i*pdb->blocksize,
2448 image + block_list[i]*pdb->blocksize, pdb->blocksize );
2449
2450 return buffer;
2451 }
2452
2453 static void *pdb_read_file( LPBYTE image, PPDB_TOC toc, DWORD fileNr )
2454 {
2455 PPDB_HEADER pdb = (PPDB_HEADER)image;
2456 WORD *block_list;
2457 DWORD i;
2458
2459 if ( !toc || fileNr >= toc->nFiles )
2460 return NULL;
2461
2462 block_list = (WORD *) &toc->file[ toc->nFiles ];
2463 for ( i = 0; i < fileNr; i++ )
2464 block_list += (toc->file[i].size + pdb->blocksize-1) / pdb->blocksize;
2465
2466 return pdb_read( image, block_list, toc->file[fileNr].size );
2467 }
2468
2469 static void pdb_free( void *buffer )
2470 {
2471 DBG_free( buffer );
2472 }
2473
2474 static void pdb_convert_types_header( PDB_TYPES *types, char *image )
2475 {
2476 memset( types, 0, sizeof(PDB_TYPES) );
2477 if ( !image ) return;
2478
2479 if ( *(DWORD *)image < 19960000 ) /* FIXME: correct version? */
2480 {
2481 /* Old version of the types record header */
2482 PDB_TYPES_OLD *old = (PDB_TYPES_OLD *)image;
2483 types->version = old->version;
2484 types->type_offset = sizeof(PDB_TYPES_OLD);
2485 types->type_size = old->type_size;
2486 types->first_index = old->first_index;
2487 types->last_index = old->last_index;
2488 types->file = old->file;
2489 }
2490 else
2491 {
2492 /* New version of the types record header */
2493 *types = *(PDB_TYPES *)image;
2494 }
2495 }
2496
2497 static void pdb_convert_symbols_header( PDB_SYMBOLS *symbols,
2498 int *header_size, char *image )
2499 {
2500 memset( symbols, 0, sizeof(PDB_SYMBOLS) );
2501 if ( !image ) return;
2502
2503 if ( *(DWORD *)image != 0xffffffff )
2504 {
2505 /* Old version of the symbols record header */
2506 PDB_SYMBOLS_OLD *old = (PDB_SYMBOLS_OLD *)image;
2507 symbols->version = 0;
2508 symbols->module_size = old->module_size;
2509 symbols->offset_size = old->offset_size;
2510 symbols->hash_size = old->hash_size;
2511 symbols->srcmodule_size = old->srcmodule_size;
2512 symbols->pdbimport_size = 0;
2513 symbols->hash1_file = old->hash1_file;
2514 symbols->hash2_file = old->hash2_file;
2515 symbols->gsym_file = old->gsym_file;
2516
2517 *header_size = sizeof(PDB_SYMBOLS_OLD);
2518 }
2519 else
2520 {
2521 /* New version of the symbols record header */
2522 *symbols = *(PDB_SYMBOLS *)image;
2523
2524 *header_size = sizeof(PDB_SYMBOLS);
2525 }
2526 }
2527
2528 static enum DbgInfoLoad DEBUG_ProcessPDBFile( DBG_MODULE *module,
2529 const char *filename, DWORD timestamp )
2530 {
2531 enum DbgInfoLoad dil = DIL_ERROR;
2532 HANDLE hFile, hMap;
2533 char *image = NULL;
2534 PDB_HEADER *pdb = NULL;
2535 PDB_TOC *toc = NULL;
2536 PDB_ROOT *root = NULL;
2537 char *types_image = NULL;
2538 char *symbols_image = NULL;
2539 PDB_TYPES types;
2540 PDB_SYMBOLS symbols;
2541 int header_size = 0;
2542 char *modimage, *file;
2543
2544 DEBUG_Printf( DBG_CHN_TRACE, "Processing PDB file %s\n", filename );
2545
2546 /*
2547 * Open and map() .PDB file
2548 */
2549 image = DEBUG_MapDebugInfoFile( filename, 0, 0, &hFile, &hMap );
2550 if ( !image )
2551 {
2552 DEBUG_Printf( DBG_CHN_ERR, "-Unable to peruse .PDB file %s\n", filename );
2553 goto leave;
2554 }
2555
2556 /*
2557 * Read in TOC and well-known files
2558 */
2559
2560 pdb = (PPDB_HEADER)image;
2561 toc = pdb_read( image, pdb->toc_block, pdb->toc.size );
2562 root = pdb_read_file( image, toc, 1 );
2563 types_image = pdb_read_file( image, toc, 2 );
2564 symbols_image = pdb_read_file( image, toc, 3 );
2565
2566 pdb_convert_types_header( &types, types_image );
2567 pdb_convert_symbols_header( &symbols, &header_size, symbols_image );
2568
2569 /*
2570 * Check for unknown versions
2571 */
2572
2573 switch ( root->version )
2574 {
2575 case 19950623: /* VC 4.0 */
2576 case 19950814:
2577 case 19960307: /* VC 5.0 */
2578 case 19970604: /* VC 6.0 */
2579 break;
2580 default:
2581 DEBUG_Printf( DBG_CHN_ERR, "-Unknown root block version %ld\n", root->version );
2582 }
2583
2584 switch ( types.version )
2585 {
2586 case 19950410: /* VC 4.0 */
2587 case 19951122:
2588 case 19961031: /* VC 5.0 / 6.0 */
2589 break;
2590 default:
2591 DEBUG_Printf( DBG_CHN_ERR, "-Unknown type info version %ld\n", types.version );
2592 }
2593
2594 switch ( symbols.version )
2595 {
2596 case 0: /* VC 4.0 */
2597 case 19960307: /* VC 5.0 */
2598 case 19970606: /* VC 6.0 */
2599 break;
2600 default:
2601 DEBUG_Printf( DBG_CHN_ERR, "-Unknown symbol info version %ld\n", symbols.version );
2602 }
2603
2604
2605 /*
2606 * Check .PDB time stamp
2607 */
2608
2609 if ( root->TimeDateStamp != timestamp )
2610 {
2611 DEBUG_Printf( DBG_CHN_ERR, "-Wrong time stamp of .PDB file %s (0x%08lx, 0x%08lx)\n",
2612 filename, root->TimeDateStamp, timestamp );
2613 }
2614
2615 /*
2616 * Read type table
2617 */
2618
2619 DEBUG_ParseTypeTable( types_image + types.type_offset, types.type_size );
2620
2621 /*
2622 * Read type-server .PDB imports
2623 */
2624
2625 if ( symbols.pdbimport_size )
2626 {
2627 /* FIXME */
2628 DEBUG_Printf(DBG_CHN_ERR, "-Type server .PDB imports ignored!\n" );
2629 }
2630
2631 /*
2632 * Read global symbol table
2633 */
2634
2635 modimage = pdb_read_file( image, toc, symbols.gsym_file );
2636 if ( modimage )
2637 {
2638 DEBUG_SnarfCodeView( module, modimage, 0,
2639 toc->file[symbols.gsym_file].size, NULL );
2640 pdb_free( modimage );
2641 }
2642
2643 /*
2644 * Read per-module symbol / linenumber tables
2645 */
2646
2647 file = symbols_image + header_size;
2648 while ( file - symbols_image < header_size + symbols.module_size )
2649 {
2650 int file_nr, file_index, symbol_size, lineno_size;
2651 char *file_name;
2652
2653 if ( symbols.version < 19970000 )
2654 {
2655 PDB_SYMBOL_FILE *sym_file = (PDB_SYMBOL_FILE *) file;
2656 file_nr = sym_file->file;
2657 file_name = sym_file->filename;
2658 file_index = sym_file->range.index;
2659 symbol_size = sym_file->symbol_size;
2660 lineno_size = sym_file->lineno_size;
2661 }
2662 else
2663 {
2664 PDB_SYMBOL_FILE_EX *sym_file = (PDB_SYMBOL_FILE_EX *) file;
2665 file_nr = sym_file->file;
2666 file_name = sym_file->filename;
2667 file_index = sym_file->range.index;
2668 symbol_size = sym_file->symbol_size;
2669 lineno_size = sym_file->lineno_size;
2670 }
2671
2672 modimage = pdb_read_file( image, toc, file_nr );
2673 if ( modimage )
2674 {
2675 struct codeview_linetab_hdr *linetab = NULL;
2676
2677 if ( lineno_size )
2678 linetab = DEBUG_SnarfLinetab( modimage + symbol_size, lineno_size );
2679
2680 if ( symbol_size )
2681 DEBUG_SnarfCodeView( module, modimage, sizeof(DWORD),
2682 symbol_size, linetab );
2683
2684 pdb_free( modimage );
2685 }
2686
2687 file_name += strlen(file_name) + 1;
2688 file = (char *)( (DWORD)(file_name + strlen(file_name) + 1 + 3) & ~3 );
2689 }
2690
2691 dil = DIL_LOADED;
2692
2693 leave:
2694
2695 /*
2696 * Cleanup
2697 */
2698
2699 DEBUG_ClearTypeTable();
2700
2701 if ( symbols_image ) pdb_free( symbols_image );
2702 if ( types_image ) pdb_free( types_image );
2703 if ( root ) pdb_free( root );
2704 if ( toc ) pdb_free( toc );
2705
2706 DEBUG_UnmapDebugInfoFile(hFile, hMap, image);
2707
2708 return dil;
2709 }
2710
2711
2712
2713
2714 /*========================================================================
2715 * Process CodeView debug information.
2716 */
2717
2718 #define CODEVIEW_NB09_SIG ( 'N' | ('B' << 8) | ('0' << 16) | ('9' << 24) )
2719 #define CODEVIEW_NB10_SIG ( 'N' | ('B' << 8) | ('1' << 16) | ('0' << 24) )
2720 #define CODEVIEW_NB11_SIG ( 'N' | ('B' << 8) | ('1' << 16) | ('1' << 24) )
2721
2722 typedef struct _CODEVIEW_HEADER
2723 {
2724 DWORD dwSignature;
2725 DWORD lfoDirectory;
2726
2727 } CODEVIEW_HEADER, *PCODEVIEW_HEADER;
2728
2729 typedef struct _CODEVIEW_PDB_DATA
2730 {
2731 DWORD timestamp;
2732 DWORD unknown;
2733 CHAR name[ 1 ];
2734
2735 } CODEVIEW_PDB_DATA, *PCODEVIEW_PDB_DATA;
2736
2737 typedef struct _CV_DIRECTORY_HEADER
2738 {
2739 WORD cbDirHeader;
2740 WORD cbDirEntry;
2741 DWORD cDir;
2742 DWORD lfoNextDir;
2743 DWORD flags;
2744
2745 } CV_DIRECTORY_HEADER, *PCV_DIRECTORY_HEADER;
2746
2747 typedef struct _CV_DIRECTORY_ENTRY
2748 {
2749 WORD subsection;
2750 WORD iMod;
2751 DWORD lfo;
2752 DWORD cb;
2753
2754 } CV_DIRECTORY_ENTRY, *PCV_DIRECTORY_ENTRY;
2755
2756
2757 #define sstAlignSym 0x125
2758 #define sstSrcModule 0x127
2759
2760
2761 static enum DbgInfoLoad DEBUG_ProcessCodeView( DBG_MODULE *module, LPBYTE root )
2762 {
2763 PCODEVIEW_HEADER cv = (PCODEVIEW_HEADER)root;
2764 enum DbgInfoLoad dil = DIL_ERROR;
2765
2766 switch ( cv->dwSignature )
2767 {
2768 case CODEVIEW_NB09_SIG:
2769 case CODEVIEW_NB11_SIG:
2770 {
2771 PCV_DIRECTORY_HEADER hdr = (PCV_DIRECTORY_HEADER)(root + cv->lfoDirectory);
2772 PCV_DIRECTORY_ENTRY ent, prev, next;
2773 unsigned int i;
2774
2775 ent = (PCV_DIRECTORY_ENTRY)((LPBYTE)hdr + hdr->cbDirHeader);
2776 for ( i = 0; i < hdr->cDir; i++, ent = next )
2777 {
2778 next = (i == hdr->cDir-1)? NULL :
2779 (PCV_DIRECTORY_ENTRY)((LPBYTE)ent + hdr->cbDirEntry);
2780 prev = (i == 0)? NULL :
2781 (PCV_DIRECTORY_ENTRY)((LPBYTE)ent - hdr->cbDirEntry);
2782
2783 if ( ent->subsection == sstAlignSym )
2784 {
2785 /*
2786 * Check the next and previous entry. If either is a
2787 * sstSrcModule, it contains the line number info for
2788 * this file.
2789 *
2790 * FIXME: This is not a general solution!
2791 */
2792 struct codeview_linetab_hdr *linetab = NULL;
2793
2794 if ( next && next->iMod == ent->iMod
2795 && next->subsection == sstSrcModule )
2796 linetab = DEBUG_SnarfLinetab( root + next->lfo, next->cb );
2797
2798 if ( prev && prev->iMod == ent->iMod
2799 && prev->subsection == sstSrcModule )
2800 linetab = DEBUG_SnarfLinetab( root + prev->lfo, prev->cb );
2801
2802
2803 DEBUG_SnarfCodeView( module, root + ent->lfo, sizeof(DWORD),
2804 ent->cb, linetab );
2805 }
2806 }
2807
2808 dil = DIL_LOADED;
2809 break;
2810 }
2811
2812 case CODEVIEW_NB10_SIG:
2813 {
2814 PCODEVIEW_PDB_DATA pdb = (PCODEVIEW_PDB_DATA)(cv + 1);
2815
2816 dil = DEBUG_ProcessPDBFile( module, pdb->name, pdb->timestamp );
2817 break;
2818 }
2819
2820 default:
2821 DEBUG_Printf( DBG_CHN_ERR, "Unknown CODEVIEW signature %08lX in module %s\n",
2822 cv->dwSignature, module->module_name );
2823 break;
2824 }
2825
2826 return dil;
2827 }
2828
2829
2830 /*========================================================================
2831 * Process debug directory.
2832 */
2833 static enum DbgInfoLoad DEBUG_ProcessDebugDirectory( DBG_MODULE *module,
2834 LPBYTE file_map,
2835 PIMAGE_DEBUG_DIRECTORY dbg,
2836 int nDbg )
2837 {
2838 enum DbgInfoLoad dil = DIL_ERROR;
2839 int i;
2840
2841 /* First, watch out for OMAP data */
2842 for ( i = 0; i < nDbg; i++ )
2843 if ( dbg[i].Type == IMAGE_DEBUG_TYPE_OMAP_FROM_SRC )
2844 {
2845 module->msc_info->nomap = dbg[i].SizeOfData / sizeof(OMAP_DATA);
2846 module->msc_info->omapp = (OMAP_DATA *)(file_map + dbg[i].PointerToRawData);
2847 break;
2848 }
2849
2850
2851 /* Now, try to parse CodeView debug info */
2852 for ( i = 0; dil != DIL_LOADED && i < nDbg; i++ )
2853 if ( dbg[i].Type == IMAGE_DEBUG_TYPE_CODEVIEW )
2854 dil = DEBUG_ProcessCodeView( module, file_map + dbg[i].PointerToRawData );
2855
2856
2857 /* If not found, try to parse COFF debug info */
2858 for ( i = 0; dil != DIL_LOADED && i < nDbg; i++ )
2859 if ( dbg[i].Type == IMAGE_DEBUG_TYPE_COFF )
2860 dil = DEBUG_ProcessCoff( module, file_map + dbg[i].PointerToRawData );
2861
2862 #if 0
2863 /* FIXME: this should be supported... this is the debug information for
2864 * functions compiled without a frame pointer (FPO = frame pointer omission)
2865 * the associated data helps finding out the relevant information
2866 */
2867 for ( i = 0; i < nDbg; i++ )
2868 if ( dbg[i].Type == IMAGE_DEBUG_TYPE_FPO )
2869 DEBUG_Printf(DBG_CHN_MESG, "This guy has FPO information\n");
2870
2871 #define FRAME_FPO 0
2872 #define FRAME_TRAP 1
2873 #define FRAME_TSS 2
2874
2875 typedef struct _FPO_DATA {
2876 DWORD ulOffStart; /* offset 1st byte of function code */
2877 DWORD cbProcSize; /* # bytes in function */
2878 DWORD cdwLocals; /* # bytes in locals/4 */
2879 WORD cdwParams; /* # bytes in params/4 */
2880
2881 WORD cbProlog : 8; /* # bytes in prolog */
2882 WORD cbRegs : 3; /* # regs saved */
2883 WORD fHasSEH : 1; /* TRUE if SEH in func */
2884 WORD fUseBP : 1; /* TRUE if EBP has been allocated */
2885 WORD reserved : 1; /* reserved for future use */
2886 WORD cbFrame : 2; /* frame type */
2887 } FPO_DATA;
2888 #endif
2889
2890 return dil;
2891 }
2892
2893
2894 /*========================================================================
2895 * Process DBG file.
2896 */
2897 static enum DbgInfoLoad DEBUG_ProcessDBGFile( DBG_MODULE *module,
2898 const char *filename, DWORD timestamp )
2899 {
2900 enum DbgInfoLoad dil = DIL_ERROR;
2901 HANDLE hFile = INVALID_HANDLE_VALUE, hMap = 0;
2902 LPBYTE file_map = NULL;
2903 PIMAGE_SEPARATE_DEBUG_HEADER hdr;
2904 PIMAGE_DEBUG_DIRECTORY dbg;
2905 int nDbg;
2906
2907
2908 DEBUG_Printf( DBG_CHN_TRACE, "Processing DBG file %s\n", filename );
2909
2910 file_map = DEBUG_MapDebugInfoFile( filename, 0, 0, &hFile, &hMap );
2911 if ( !file_map )
2912 {
2913 DEBUG_Printf( DBG_CHN_ERR, "-Unable to peruse .DBG file %s\n", filename );
2914 goto leave;
2915 }
2916
2917 hdr = (PIMAGE_SEPARATE_DEBUG_HEADER) file_map;
2918
2919 if ( hdr->TimeDateStamp != timestamp )
2920 {
2921 DEBUG_Printf( DBG_CHN_ERR, "Warning - %s has incorrect internal timestamp\n",
2922 filename );
2923 /*
2924 * Well, sometimes this happens to DBG files which ARE REALLY the right .DBG
2925 * files but nonetheless this check fails. Anyway, WINDBG (debugger for
2926 * Windows by Microsoft) loads debug symbols which have incorrect timestamps.
2927 */
2928 }
2929
2930
2931 dbg = (PIMAGE_DEBUG_DIRECTORY) ( file_map + sizeof(*hdr)
2932 + hdr->NumberOfSections * sizeof(IMAGE_SECTION_HEADER)
2933 + hdr->ExportedNamesSize );
2934
2935 nDbg = hdr->DebugDirectorySize / sizeof(*dbg);
2936
2937 dil = DEBUG_ProcessDebugDirectory( module, file_map, dbg, nDbg );
2938
2939
2940 leave:
2941 DEBUG_UnmapDebugInfoFile( hFile, hMap, file_map );
2942 return dil;
2943 }
2944
2945
2946 /*========================================================================
2947 * Process MSC debug information in PE file.
2948 */
2949 enum DbgInfoLoad DEBUG_RegisterMSCDebugInfo( DBG_MODULE *module, HANDLE hFile,
2950 void *_nth, unsigned long nth_ofs )
2951 {
2952 enum DbgInfoLoad dil = DIL_ERROR;
2953 PIMAGE_NT_HEADERS nth = (PIMAGE_NT_HEADERS)_nth;
2954 PIMAGE_DATA_DIRECTORY dir = nth->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_DEBUG;
2955 PIMAGE_DEBUG_DIRECTORY dbg = NULL;
2956 int nDbg;
2957 MSC_DBG_INFO extra_info = { 0, NULL, 0, NULL };
2958 HANDLE hMap = 0;
2959 LPBYTE file_map = NULL;
2960
2961
2962 /* Read in section data */
2963
2964 module->msc_info = &extra_info;
2965 extra_info.nsect = nth->FileHeader.NumberOfSections;
2966 extra_info.sectp = DBG_alloc( extra_info.nsect * sizeof(IMAGE_SECTION_HEADER) );
2967 if ( !extra_info.sectp )
2968 goto leave;
2969
2970 if ( !DEBUG_READ_MEM_VERBOSE( (char *)module->load_addr +
2971 nth_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) +
2972 nth->FileHeader.SizeOfOptionalHeader,
2973 extra_info.sectp,
2974 extra_info.nsect * sizeof(IMAGE_SECTION_HEADER) ) )
2975 goto leave;
2976
2977 /* Read in debug directory */
2978
2979 nDbg = dir->Size / sizeof(IMAGE_DEBUG_DIRECTORY);
2980 if ( !nDbg )
2981 goto leave;
2982
2983 dbg = (PIMAGE_DEBUG_DIRECTORY) DBG_alloc( nDbg * sizeof(IMAGE_DEBUG_DIRECTORY) );
2984 if ( !dbg )
2985 goto leave;
2986
2987 if ( !DEBUG_READ_MEM_VERBOSE( (char *)module->load_addr + dir->VirtualAddress,
2988 dbg, nDbg * sizeof(IMAGE_DEBUG_DIRECTORY) ) )
2989 goto leave;
2990
2991
2992 /* Map in PE file */
2993 file_map = DEBUG_MapDebugInfoFile( NULL, 0, 0, &hFile, &hMap );
2994 if ( !file_map )
2995 goto leave;
2996
2997
2998 /* Parse debug directory */
2999
3000 if ( nth->FileHeader.Characteristics & IMAGE_FILE_DEBUG_STRIPPED )
3001 {
3002 /* Debug info is stripped to .DBG file */
3003
3004 PIMAGE_DEBUG_MISC misc = (PIMAGE_DEBUG_MISC)(file_map + dbg->PointerToRawData);
3005
3006 if ( nDbg != 1 || dbg->Type != IMAGE_DEBUG_TYPE_MISC
3007 || misc->DataType != IMAGE_DEBUG_MISC_EXENAME )
3008 {
3009 DEBUG_Printf( DBG_CHN_ERR, "-Debug info stripped, but no .DBG file in module %s\n",
3010 module->module_name );
3011 goto leave;
3012 }
3013
3014 dil = DEBUG_ProcessDBGFile( module, misc->Data, nth->FileHeader.TimeDateStamp );
3015 }
3016 else
3017 {
3018 /* Debug info is embedded into PE module */
3019
3020 dil = DEBUG_ProcessDebugDirectory( module, file_map, dbg, nDbg );
3021 }
3022
3023
3024 leave:
3025 module->msc_info = NULL;
3026
3027 DEBUG_UnmapDebugInfoFile( 0, hMap, file_map );
3028 if ( extra_info.sectp ) DBG_free( extra_info.sectp );
3029 if ( dbg ) DBG_free( dbg );
3030 return dil;
3031 }
3032
3033
3034 /*========================================================================
3035 * look for stabs information in PE header (it's how mingw compiler provides its
3036 * debugging information), and also wine PE <-> ELF linking thru .wsolnk sections
3037 */
3038 enum DbgInfoLoad DEBUG_RegisterStabsDebugInfo(DBG_MODULE* module, HANDLE hFile,
3039 void* _nth, unsigned long nth_ofs)
3040 {
3041 IMAGE_SECTION_HEADER pe_seg;
3042 unsigned long pe_seg_ofs;
3043 int i, stabsize = 0, stabstrsize = 0;
3044 unsigned int stabs = 0, stabstr = 0;
3045 PIMAGE_NT_HEADERS nth = (PIMAGE_NT_HEADERS)_nth;
3046 enum DbgInfoLoad dil = DIL_ERROR;
3047
3048 pe_seg_ofs = nth_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) +
3049 nth->FileHeader.SizeOfOptionalHeader;
3050
3051 for (i = 0; i < nth->FileHeader.NumberOfSections; i++, pe_seg_ofs += sizeof(pe_seg)) {
3052 if (!DEBUG_READ_MEM_VERBOSE((void*)((char *)module->load_addr + pe_seg_ofs),
3053 &pe_seg, sizeof(pe_seg)))
3054 continue;
3055
3056 if (!strcasecmp(pe_seg.Name, ".stab")) {
3057 stabs = pe_seg.VirtualAddress;
3058 stabsize = pe_seg.SizeOfRawData;
3059 } else if (!strncasecmp(pe_seg.Name, ".stabstr", 8)) {
3060 stabstr = pe_seg.VirtualAddress;
3061 stabstrsize = pe_seg.SizeOfRawData;
3062 }
3063 }
3064
3065 if (stabstrsize && stabsize) {
3066 char* s1 = DBG_alloc(stabsize+stabstrsize);
3067
3068 if (s1) {
3069 if (DEBUG_READ_MEM_VERBOSE((char*)module->load_addr + stabs, s1, stabsize) &&
3070 DEBUG_READ_MEM_VERBOSE((char*)module->load_addr + stabstr,
3071 s1 + stabsize, stabstrsize)) {
3072 dil = DEBUG_ParseStabs(s1, 0, 0, stabsize, stabsize, stabstrsize);
3073 } else {
3074 DEBUG_Printf(DBG_CHN_MESG, "couldn't read data block\n");
3075 }
3076 DBG_free(s1);
3077 } else {
3078 DEBUG_Printf(DBG_CHN_MESG, "couldn't alloc %d bytes\n",
3079 stabsize + stabstrsize);
3080 }
3081 } else {
3082 dil = DIL_NOINFO;
3083 }
3084 return dil;
3085 }
3086
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