/* * File msc.c - read VC++ debug information from COFF and eventually * from PDB files. * * Copyright (C) 1996, Eric Youngdale. * Copyright (C) 1999, 2000, Ulrich Weigand. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Note - this handles reading debug information for 32 bit applications * that run under Windows-NT for example. I doubt that this would work well * for 16 bit applications, but I don't think it really matters since the * file format is different, and we should never get in here in such cases. * * TODO: * Get 16 bit CV stuff working. * Add symbol size to internal symbol table. */ #include "config.h" #include #include #include #ifndef PATH_MAX #define PATH_MAX MAX_PATH #endif #include "debugger.h" #define MAX_PATHNAME_LEN 1024 typedef struct { DWORD from; DWORD to; } OMAP_DATA; typedef struct tagMSC_DBG_INFO { int nsect; PIMAGE_SECTION_HEADER sectp; int nomap; OMAP_DATA * omapp; } MSC_DBG_INFO; /*======================================================================== * Debug file access helper routines */ /*********************************************************************** * DEBUG_LocateDebugInfoFile * * NOTE: dbg_filename must be at least MAX_PATHNAME_LEN bytes in size */ static void DEBUG_LocateDebugInfoFile(const char *filename, char *dbg_filename) { char *str1 = DBG_alloc(MAX_PATHNAME_LEN); char *str2 = DBG_alloc(MAX_PATHNAME_LEN*10); const char *file; char *name_part; file = strrchr(filename, '\\'); if( file == NULL ) file = filename; else file++; if ((GetEnvironmentVariable("_NT_SYMBOL_PATH", str1, MAX_PATHNAME_LEN) && (SearchPath(str1, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part))) || (GetEnvironmentVariable("_NT_ALT_SYMBOL_PATH", str1, MAX_PATHNAME_LEN) && (SearchPath(str1, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part))) || (SearchPath(NULL, file, NULL, MAX_PATHNAME_LEN*10, str2, &name_part))) lstrcpyn(dbg_filename, str2, MAX_PATHNAME_LEN); else lstrcpyn(dbg_filename, filename, MAX_PATHNAME_LEN); DBG_free(str1); DBG_free(str2); } /*********************************************************************** * DEBUG_MapDebugInfoFile */ static void* DEBUG_MapDebugInfoFile(const char* name, DWORD offset, DWORD size, HANDLE* hFile, HANDLE* hMap) { DWORD g_offset; /* offset aligned on map granuality */ DWORD g_size; /* size to map, with offset aligned */ char* ret; *hMap = 0; if (name != NULL) { char filename[MAX_PATHNAME_LEN]; DEBUG_LocateDebugInfoFile(name, filename); if ((*hFile = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE) return NULL; } if (!size) { DWORD file_size = GetFileSize(*hFile, NULL); if (file_size == (DWORD)-1) return NULL; size = file_size - offset; } g_offset = offset & ~0xFFFF; /* FIXME: is granularity portable ? */ g_size = offset + size - g_offset; if ((*hMap = CreateFileMapping(*hFile, NULL, PAGE_READONLY, 0, 0, NULL)) == 0) return NULL; if ((ret = MapViewOfFile(*hMap, FILE_MAP_READ, 0, g_offset, g_size)) != NULL) ret += offset - g_offset; return ret; } /*********************************************************************** * DEBUG_UnmapDebugInfoFile */ static void DEBUG_UnmapDebugInfoFile(HANDLE hFile, HANDLE hMap, void* addr) { if (addr) UnmapViewOfFile(addr); if (hMap) CloseHandle(hMap); if (hFile!=INVALID_HANDLE_VALUE) CloseHandle(hFile); } /*======================================================================== * Process COFF debug information. */ struct CoffFile { unsigned int startaddr; unsigned int endaddr; const char *filename; int linetab_offset; int linecnt; struct name_hash **entries; int neps; int neps_alloc; }; struct CoffFileSet { struct CoffFile *files; int nfiles; int nfiles_alloc; }; static const char* DEBUG_GetCoffName( PIMAGE_SYMBOL coff_sym, const char* coff_strtab ) { static char namebuff[9]; const char* nampnt; if( coff_sym->N.Name.Short ) { memcpy(namebuff, coff_sym->N.ShortName, 8); namebuff[8] = '\0'; nampnt = &namebuff[0]; } else { nampnt = coff_strtab + coff_sym->N.Name.Long; } if( nampnt[0] == '_' ) nampnt++; return nampnt; } static int DEBUG_AddCoffFile( struct CoffFileSet* coff_files, const char* filename ) { struct CoffFile* file; if( coff_files->nfiles + 1 >= coff_files->nfiles_alloc ) { coff_files->nfiles_alloc += 10; coff_files->files = (struct CoffFile *) DBG_realloc(coff_files->files, coff_files->nfiles_alloc * sizeof(struct CoffFile)); } file = coff_files->files + coff_files->nfiles; file->startaddr = 0xffffffff; file->endaddr = 0; file->filename = filename; file->linetab_offset = -1; file->linecnt = 0; file->entries = NULL; file->neps = file->neps_alloc = 0; return coff_files->nfiles++; } static void DEBUG_AddCoffSymbol( struct CoffFile* coff_file, struct name_hash* sym ) { if( coff_file->neps + 1 >= coff_file->neps_alloc ) { coff_file->neps_alloc += 10; coff_file->entries = (struct name_hash **) DBG_realloc(coff_file->entries, coff_file->neps_alloc * sizeof(struct name_hash *)); } coff_file->entries[coff_file->neps++] = sym; } static enum DbgInfoLoad DEBUG_ProcessCoff( DBG_MODULE *module, LPBYTE root ) { PIMAGE_AUX_SYMBOL aux; PIMAGE_COFF_SYMBOLS_HEADER coff; PIMAGE_LINENUMBER coff_linetab; PIMAGE_LINENUMBER linepnt; char * coff_strtab; PIMAGE_SYMBOL coff_sym; PIMAGE_SYMBOL coff_symbols; struct CoffFileSet coff_files; int curr_file_idx = -1; unsigned int i; int j; int k; int l; int linetab_indx; const char * nampnt; int naux; DBG_VALUE new_value; enum DbgInfoLoad dil = DIL_ERROR; DEBUG_Printf(DBG_CHN_TRACE, "Processing COFF symbols...\n"); assert(sizeof(IMAGE_SYMBOL) == IMAGE_SIZEOF_SYMBOL); assert(sizeof(IMAGE_LINENUMBER) == IMAGE_SIZEOF_LINENUMBER); coff_files.files = NULL; coff_files.nfiles = coff_files.nfiles_alloc = 0; coff = (PIMAGE_COFF_SYMBOLS_HEADER) root; coff_symbols = (PIMAGE_SYMBOL) ((unsigned int) coff + coff->LvaToFirstSymbol); coff_linetab = (PIMAGE_LINENUMBER) ((unsigned int) coff + coff->LvaToFirstLinenumber); coff_strtab = (char *) (coff_symbols + coff->NumberOfSymbols); linetab_indx = 0; new_value.cookie = DV_TARGET; new_value.type = NULL; for(i=0; i < coff->NumberOfSymbols; i++ ) { coff_sym = coff_symbols + i; naux = coff_sym->NumberOfAuxSymbols; if( coff_sym->StorageClass == IMAGE_SYM_CLASS_FILE ) { curr_file_idx = DEBUG_AddCoffFile( &coff_files, (char *) (coff_sym + 1) ); DEBUG_Printf(DBG_CHN_TRACE,"New file %s\n", coff_files.files[curr_file_idx].filename); i += naux; continue; } if (curr_file_idx < 0) { assert(coff_files.nfiles == 0 && coff_files.nfiles_alloc == 0); curr_file_idx = DEBUG_AddCoffFile( &coff_files, "" ); DEBUG_Printf(DBG_CHN_TRACE,"New file %s\n", coff_files.files[curr_file_idx].filename); } /* * This guy marks the size and location of the text section * for the current file. We need to keep track of this so * we can figure out what file the different global functions * go with. */ if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC) && (naux != 0) && (coff_sym->Type == 0) && (coff_sym->SectionNumber == 1) ) { aux = (PIMAGE_AUX_SYMBOL) (coff_sym + 1); if( coff_files.files[curr_file_idx].linetab_offset != -1 ) { /* * Save this so we can still get the old name. */ const char* fn = coff_files.files[curr_file_idx].filename; #ifdef MORE_DBG DEBUG_Printf(DBG_CHN_TRACE, "Duplicating sect from %s: %lx %x %x %d %d\n", coff_files.files[curr_file_idx].filename, aux->Section.Length, aux->Section.NumberOfRelocations, aux->Section.NumberOfLinenumbers, aux->Section.Number, aux->Section.Selection); DEBUG_Printf(DBG_CHN_TRACE, "More sect %d %s %08lx %d %d %d\n", coff_sym->SectionNumber, DEBUG_GetCoffName( coff_sym, coff_strtab ), coff_sym->Value, coff_sym->Type, coff_sym->StorageClass, coff_sym->NumberOfAuxSymbols); #endif /* * Duplicate the file entry. We have no way to describe * multiple text sections in our current way of handling things. */ DEBUG_AddCoffFile( &coff_files, fn ); } #ifdef MORE_DBG else { DEBUG_Printf(DBG_CHN_TRACE, "New text sect from %s: %lx %x %x %d %d\n", coff_files.files[curr_file_idx].filename, aux->Section.Length, aux->Section.NumberOfRelocations, aux->Section.NumberOfLinenumbers, aux->Section.Number, aux->Section.Selection); } #endif if( coff_files.files[curr_file_idx].startaddr > coff_sym->Value ) { coff_files.files[curr_file_idx].startaddr = coff_sym->Value; } if( coff_files.files[curr_file_idx].endaddr < coff_sym->Value + aux->Section.Length ) { coff_files.files[curr_file_idx].endaddr = coff_sym->Value + aux->Section.Length; } coff_files.files[curr_file_idx].linetab_offset = linetab_indx; coff_files.files[curr_file_idx].linecnt = aux->Section.NumberOfLinenumbers; linetab_indx += aux->Section.NumberOfLinenumbers; i += naux; continue; } if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC) && (naux == 0) && (coff_sym->SectionNumber == 1) ) { DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress; /* * This is a normal static function when naux == 0. * Just register it. The current file is the correct * one in this instance. */ nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab ); new_value.addr.seg = 0; new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value); #ifdef MORE_DBG DEBUG_Printf(DBG_CHN_TRACE,"\tAdding static symbol %s\n", nampnt); #endif /* FIXME: was adding symbol to this_file ??? */ DEBUG_AddCoffSymbol( &coff_files.files[curr_file_idx], DEBUG_AddSymbol( nampnt, &new_value, coff_files.files[curr_file_idx].filename, SYM_WIN32 | SYM_FUNC ) ); i += naux; continue; } if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL) && ISFCN(coff_sym->Type) && (coff_sym->SectionNumber > 0) ) { const char* this_file = NULL; DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress; nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab ); new_value.addr.seg = 0; new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value); #ifdef MORE_DBG DEBUG_Printf(DBG_CHN_TRACE, "%d: %lx %s\n", i, new_value.addr.off, nampnt); DEBUG_Printf(DBG_CHN_TRACE,"\tAdding global symbol %s (sect=%s)\n", nampnt, MSC_INFO(module)->sectp[coff_sym->SectionNumber - 1].Name); #endif /* * Now we need to figure out which file this guy belongs to. */ for(j=0; j < coff_files.nfiles; j++) { if( coff_files.files[j].startaddr <= base + coff_sym->Value && coff_files.files[j].endaddr > base + coff_sym->Value ) { this_file = coff_files.files[j].filename; break; } } if (j < coff_files.nfiles) { DEBUG_AddCoffSymbol( &coff_files.files[j], DEBUG_AddSymbol( nampnt, &new_value, this_file, SYM_WIN32 | SYM_FUNC ) ); } else { DEBUG_AddSymbol( nampnt, &new_value, NULL, SYM_WIN32 | SYM_FUNC ); } i += naux; continue; } if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL) && (coff_sym->SectionNumber > 0) ) { DWORD base = module->msc_info->sectp[coff_sym->SectionNumber - 1].VirtualAddress; /* * Similar to above, but for the case of data symbols. * These aren't treated as entrypoints. */ nampnt = DEBUG_GetCoffName( coff_sym, coff_strtab ); new_value.addr.seg = 0; new_value.addr.off = (int) ((char *)module->load_addr + base + coff_sym->Value); #ifdef MORE_DBG DEBUG_Printf(DBG_CHN_TRACE, "%d: %lx %s\n", i, new_value.addr.off, nampnt); DEBUG_Printf(DBG_CHN_TRACE,"\tAdding global data symbol %s\n", nampnt); #endif /* * Now we need to figure out which file this guy belongs to. */ DEBUG_AddSymbol( nampnt, &new_value, NULL, SYM_WIN32 | SYM_DATA ); i += naux; continue; } if( (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC) && (naux == 0) ) { /* * Ignore these. They don't have anything to do with * reality. */ i += naux; continue; } #ifdef MORE_DBG DEBUG_Printf(DBG_CHN_TRACE,"Skipping unknown entry '%s' %d %d %d\n", DEBUG_GetCoffName( coff_sym, coff_strtab ), coff_sym->StorageClass, coff_sym->SectionNumber, naux); #endif /* * For now, skip past the aux entries. */ i += naux; } /* * OK, we now should have a list of files, and we should have a list * of entrypoints. We need to sort the entrypoints so that we are * able to tie the line numbers with the given functions within the * file. */ if( coff_files.files != NULL ) { for(j=0; j < coff_files.nfiles; j++) { if( coff_files.files[j].entries != NULL ) { qsort(coff_files.files[j].entries, coff_files.files[j].neps, sizeof(struct name_hash *), DEBUG_cmp_sym); } } /* * Now pick apart the line number tables, and attach the entries * to the given functions. */ for(j=0; j < coff_files.nfiles; j++) { l = 0; if( coff_files.files[j].neps != 0 ) for(k=0; k < coff_files.files[j].linecnt; k++) { linepnt = coff_linetab + coff_files.files[j].linetab_offset + k; /* * If we have spilled onto the next entrypoint, then * bump the counter.. */ while(TRUE) { if (l+1 >= coff_files.files[j].neps) break; DEBUG_GetSymbolAddr(coff_files.files[j].entries[l+1], &new_value.addr); if( (((unsigned int)module->load_addr + linepnt->Type.VirtualAddress) >= new_value.addr.off) ) { l++; } else break; } /* * Add the line number. This is always relative to the * start of the function, so we need to subtract that offset * first. */ DEBUG_GetSymbolAddr(coff_files.files[j].entries[l], &new_value.addr); DEBUG_AddLineNumber(coff_files.files[j].entries[l], linepnt->Linenumber, (unsigned int) module->load_addr + linepnt->Type.VirtualAddress - new_value.addr.off); } } } dil = DIL_LOADED; if( coff_files.files != NULL ) { for(j=0; j < coff_files.nfiles; j++) { if( coff_files.files[j].entries != NULL ) { DBG_free(coff_files.files[j].entries); } } DBG_free(coff_files.files); } return dil; } /*======================================================================== * Process CodeView type information. */ union codeview_type { struct { unsigned short int len; short int id; } generic; struct { unsigned short int len; short int id; short int attribute; short int datatype; unsigned char variant[1]; } pointer; struct { unsigned short int len; short int id; unsigned int datatype; unsigned int attribute; unsigned char variant[1]; } pointer32; struct { unsigned short int len; short int id; unsigned char nbits; unsigned char bitoff; unsigned short type; } bitfield; struct { unsigned short int len; short int id; unsigned int type; unsigned char nbits; unsigned char bitoff; } bitfield32; struct { unsigned short int len; short int id; short int elemtype; short int idxtype; unsigned short int arrlen; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } array; struct { unsigned short int len; short int id; unsigned int elemtype; unsigned int idxtype; unsigned short int arrlen; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } array32; struct { unsigned short int len; short int id; short int n_element; short int fieldlist; short int property; short int derived; short int vshape; unsigned short int structlen; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } structure; struct { unsigned short int len; short int id; short int n_element; short int property; unsigned int fieldlist; unsigned int derived; unsigned int vshape; unsigned short int structlen; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } structure32; struct { unsigned short int len; short int id; short int count; short int fieldlist; short int property; unsigned short int un_len; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } t_union; struct { unsigned short int len; short int id; short int count; short int property; unsigned int fieldlist; unsigned short int un_len; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } t_union32; struct { unsigned short int len; short int id; short int count; short int type; short int field; short int property; unsigned char name[1]; } enumeration; struct { unsigned short int len; short int id; short int count; short int property; unsigned int type; unsigned int field; unsigned char name[1]; } enumeration32; struct { unsigned short int len; short int id; unsigned char list[1]; } fieldlist; }; union codeview_fieldtype { struct { short int id; } generic; struct { short int id; short int type; short int attribute; unsigned short int offset; /* numeric leaf */ } bclass; struct { short int id; short int attribute; unsigned int type; unsigned short int offset; /* numeric leaf */ } bclass32; struct { short int id; short int btype; short int vbtype; short int attribute; unsigned short int vbpoff; /* numeric leaf */ #if 0 unsigned short int vboff; /* numeric leaf */ #endif } vbclass; struct { short int id; short int attribute; unsigned int btype; unsigned int vbtype; unsigned short int vbpoff; /* numeric leaf */ #if 0 unsigned short int vboff; /* numeric leaf */ #endif } vbclass32; struct { short int id; short int attribute; unsigned short int value; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } enumerate; struct { short int id; short int type; unsigned char name[1]; } friendfcn; struct { short int id; short int _pad0; unsigned int type; unsigned char name[1]; } friendfcn32; struct { short int id; short int type; short int attribute; unsigned short int offset; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } member; struct { short int id; short int attribute; unsigned int type; unsigned short int offset; /* numeric leaf */ #if 0 unsigned char name[1]; #endif } member32; struct { short int id; short int type; short int attribute; unsigned char name[1]; } stmember; struct { short int id; short int attribute; unsigned int type; unsigned char name[1]; } stmember32; struct { short int id; short int count; short int mlist; unsigned char name[1]; } method; struct { short int id; short int count; unsigned int mlist; unsigned char name[1]; } method32; struct { short int id; short int index; unsigned char name[1]; } nesttype; struct { short int id; short int _pad0; unsigned int index; unsigned char name[1]; } nesttype32; struct { short int id; short int type; } vfunctab; struct { short int id; short int _pad0; unsigned int type; } vfunctab32; struct { short int id; short int type; } friendcls; struct { short int id; short int _pad0; unsigned int type; } friendcls32; struct { short int id; short int attribute; short int type; unsigned char name[1]; } onemethod; struct { short int id; short int attribute; short int type; unsigned int vtab_offset; unsigned char name[1]; } onemethod_virt; struct { short int id; short int attribute; unsigned int type; unsigned char name[1]; } onemethod32; struct { short int id; short int attribute; unsigned int type; unsigned int vtab_offset; unsigned char name[1]; } onemethod32_virt; struct { short int id; short int type; unsigned int offset; } vfuncoff; struct { short int id; short int _pad0; unsigned int type; unsigned int offset; } vfuncoff32; struct { short int id; short int attribute; short int index; unsigned char name[1]; } nesttypeex; struct { short int id; short int attribute; unsigned int index; unsigned char name[1]; } nesttypeex32; struct { short int id; short int attribute; unsigned int type; unsigned char name[1]; } membermodify; }; /* * This covers the basic datatypes that VC++ seems to be using these days. * 32 bit mode only. There are additional numbers for the pointers in 16 * bit mode. There are many other types listed in the documents, but these * are apparently not used by the compiler, or represent pointer types * that are not used. */ #define T_NOTYPE 0x0000 /* Notype */ #define T_ABS 0x0001 /* Abs */ #define T_VOID 0x0003 /* Void */ #define T_CHAR 0x0010 /* signed char */ #define T_SHORT 0x0011 /* short */ #define T_LONG 0x0012 /* long */ #define T_QUAD 0x0013 /* long long */ #define T_UCHAR 0x0020 /* unsigned char */ #define T_USHORT 0x0021 /* unsigned short */ #define T_ULONG 0x0022 /* unsigned long */ #define T_UQUAD 0x0023 /* unsigned long long */ #define T_REAL32 0x0040 /* float */ #define T_REAL64 0x0041 /* double */ #define T_RCHAR 0x0070 /* real char */ #define T_WCHAR 0x0071 /* wide char */ #define T_INT4 0x0074 /* int */ #define T_UINT4 0x0075 /* unsigned int */ #define T_32PVOID 0x0403 /* 32 bit near pointer to void */ #define T_32PCHAR 0x0410 /* 16:32 near pointer to signed char */ #define T_32PSHORT 0x0411 /* 16:32 near pointer to short */ #define T_32PLONG 0x0412 /* 16:32 near pointer to int */ #define T_32PQUAD 0x0413 /* 16:32 near pointer to long long */ #define T_32PUCHAR 0x0420 /* 16:32 near pointer to unsigned char */ #define T_32PUSHORT 0x0421 /* 16:32 near pointer to unsigned short */ #define T_32PULONG 0x0422 /* 16:32 near pointer to unsigned int */ #define T_32PUQUAD 0x0423 /* 16:32 near pointer to long long */ #define T_32PREAL32 0x0440 /* 16:32 near pointer to float */ #define T_32PREAL64 0x0441 /* 16:32 near pointer to float */ #define T_32PRCHAR 0x0470 /* 16:32 near pointer to real char */ #define T_32PWCHAR 0x0471 /* 16:32 near pointer to real char */ #define T_32PINT4 0x0474 /* 16:32 near pointer to int */ #define T_32PUINT4 0x0475 /* 16:32 near pointer to unsigned int */ #define LF_MODIFIER 0x0001 #define LF_POINTER 0x0002 #define LF_ARRAY 0x0003 #define LF_CLASS 0x0004 #define LF_STRUCTURE 0x0005 #define LF_UNION 0x0006 #define LF_ENUM 0x0007 #define LF_PROCEDURE 0x0008 #define LF_MFUNCTION 0x0009 #define LF_VTSHAPE 0x000a #define LF_COBOL0 0x000b #define LF_COBOL1 0x000c #define LF_BARRAY 0x000d #define LF_LABEL 0x000e #define LF_NULL 0x000f #define LF_NOTTRAN 0x0010 #define LF_DIMARRAY 0x0011 #define LF_VFTPATH 0x0012 #define LF_PRECOMP 0x0013 #define LF_ENDPRECOMP 0x0014 #define LF_OEM 0x0015 #define LF_TYPESERVER 0x0016 #define LF_MODIFIER_32 0x1001 /* variants with new 32-bit type indices */ #define LF_POINTER_32 0x1002 #define LF_ARRAY_32 0x1003 #define LF_CLASS_32 0x1004 #define LF_STRUCTURE_32 0x1005 #define LF_UNION_32 0x1006 #define LF_ENUM_32 0x1007 #define LF_PROCEDURE_32 0x1008 #define LF_MFUNCTION_32 0x1009 #define LF_COBOL0_32 0x100a #define LF_BARRAY_32 0x100b #define LF_DIMARRAY_32 0x100c #define LF_VFTPATH_32 0x100d #define LF_PRECOMP_32 0x100e #define LF_OEM_32 0x100f #define LF_SKIP 0x0200 #define LF_ARGLIST 0x0201 #define LF_DEFARG 0x0202 #define LF_LIST 0x0203 #define LF_FIELDLIST 0x0204 #define LF_DERIVED 0x0205 #define LF_BITFIELD 0x0206 #define LF_METHODLIST 0x0207 #define LF_DIMCONU 0x0208 #define LF_DIMCONLU 0x0209 #define LF_DIMVARU 0x020a #define LF_DIMVARLU 0x020b #define LF_REFSYM 0x020c #define LF_SKIP_32 0x1200 /* variants with new 32-bit type indices */ #define LF_ARGLIST_32 0x1201 #define LF_DEFARG_32 0x1202 #define LF_FIELDLIST_32 0x1203 #define LF_DERIVED_32 0x1204 #define LF_BITFIELD_32 0x1205 #define LF_METHODLIST_32 0x1206 #define LF_DIMCONU_32 0x1207 #define LF_DIMCONLU_32 0x1208 #define LF_DIMVARU_32 0x1209 #define LF_DIMVARLU_32 0x120a #define LF_BCLASS 0x0400 #define LF_VBCLASS 0x0401 #define LF_IVBCLASS 0x0402 #define LF_ENUMERATE 0x0403 #define LF_FRIENDFCN 0x0404 #define LF_INDEX 0x0405 #define LF_MEMBER 0x0406 #define LF_STMEMBER 0x0407 #define LF_METHOD 0x0408 #define LF_NESTTYPE 0x0409 #define LF_VFUNCTAB 0x040a #define LF_FRIENDCLS 0x040b #define LF_ONEMETHOD 0x040c #define LF_VFUNCOFF 0x040d #define LF_NESTTYPEEX 0x040e #define LF_MEMBERMODIFY 0x040f #define LF_BCLASS_32 0x1400 /* variants with new 32-bit type indices */ #define LF_VBCLASS_32 0x1401 #define LF_IVBCLASS_32 0x1402 #define LF_FRIENDFCN_32 0x1403 #define LF_INDEX_32 0x1404 #define LF_MEMBER_32 0x1405 #define LF_STMEMBER_32 0x1406 #define LF_METHOD_32 0x1407 #define LF_NESTTYPE_32 0x1408 #define LF_VFUNCTAB_32 0x1409 #define LF_FRIENDCLS_32 0x140a #define LF_ONEMETHOD_32 0x140b #define LF_VFUNCOFF_32 0x140c #define LF_NESTTYPEEX_32 0x140d #define LF_NUMERIC 0x8000 /* numeric leaf types */ #define LF_CHAR 0x8000 #define LF_SHORT 0x8001 #define LF_USHORT 0x8002 #define LF_LONG 0x8003 #define LF_ULONG 0x8004 #define LF_REAL32 0x8005 #define LF_REAL64 0x8006 #define LF_REAL80 0x8007 #define LF_REAL128 0x8008 #define LF_QUADWORD 0x8009 #define LF_UQUADWORD 0x800a #define LF_REAL48 0x800b #define LF_COMPLEX32 0x800c #define LF_COMPLEX64 0x800d #define LF_COMPLEX80 0x800e #define LF_COMPLEX128 0x800f #define LF_VARSTRING 0x8010 #define MAX_BUILTIN_TYPES 0x480 static struct datatype * cv_basic_types[MAX_BUILTIN_TYPES]; static unsigned int num_cv_defined_types = 0; static struct datatype **cv_defined_types = NULL; void DEBUG_InitCVDataTypes(void) { /* * These are the common builtin types that are used by VC++. */ cv_basic_types[T_NOTYPE] = NULL; cv_basic_types[T_ABS] = NULL; cv_basic_types[T_VOID] = DEBUG_GetBasicType(DT_BASIC_VOID); cv_basic_types[T_CHAR] = DEBUG_GetBasicType(DT_BASIC_CHAR); cv_basic_types[T_SHORT] = DEBUG_GetBasicType(DT_BASIC_SHORTINT); cv_basic_types[T_LONG] = DEBUG_GetBasicType(DT_BASIC_LONGINT); cv_basic_types[T_QUAD] = DEBUG_GetBasicType(DT_BASIC_LONGLONGINT); cv_basic_types[T_UCHAR] = DEBUG_GetBasicType(DT_BASIC_UCHAR); cv_basic_types[T_USHORT] = DEBUG_GetBasicType(DT_BASIC_USHORTINT); cv_basic_types[T_ULONG] = DEBUG_GetBasicType(DT_BASIC_ULONGINT); cv_basic_types[T_UQUAD] = DEBUG_GetBasicType(DT_BASIC_ULONGLONGINT); cv_basic_types[T_REAL32] = DEBUG_GetBasicType(DT_BASIC_FLOAT); cv_basic_types[T_REAL64] = DEBUG_GetBasicType(DT_BASIC_DOUBLE); cv_basic_types[T_RCHAR] = DEBUG_GetBasicType(DT_BASIC_CHAR); cv_basic_types[T_WCHAR] = DEBUG_GetBasicType(DT_BASIC_SHORTINT); cv_basic_types[T_INT4] = DEBUG_GetBasicType(DT_BASIC_INT); cv_basic_types[T_UINT4] = DEBUG_GetBasicType(DT_BASIC_UINT); cv_basic_types[T_32PVOID] = DEBUG_FindOrMakePointerType(cv_basic_types[T_VOID]); cv_basic_types[T_32PCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_CHAR]); cv_basic_types[T_32PSHORT] = DEBUG_FindOrMakePointerType(cv_basic_types[T_SHORT]); cv_basic_types[T_32PLONG] = DEBUG_FindOrMakePointerType(cv_basic_types[T_LONG]); cv_basic_types[T_32PQUAD] = DEBUG_FindOrMakePointerType(cv_basic_types[T_QUAD]); cv_basic_types[T_32PUCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UCHAR]); cv_basic_types[T_32PUSHORT] = DEBUG_FindOrMakePointerType(cv_basic_types[T_USHORT]); cv_basic_types[T_32PULONG] = DEBUG_FindOrMakePointerType(cv_basic_types[T_ULONG]); cv_basic_types[T_32PUQUAD] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UQUAD]); cv_basic_types[T_32PREAL32] = DEBUG_FindOrMakePointerType(cv_basic_types[T_REAL32]); cv_basic_types[T_32PREAL64] = DEBUG_FindOrMakePointerType(cv_basic_types[T_REAL64]); cv_basic_types[T_32PRCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_RCHAR]); cv_basic_types[T_32PWCHAR] = DEBUG_FindOrMakePointerType(cv_basic_types[T_WCHAR]); cv_basic_types[T_32PINT4] = DEBUG_FindOrMakePointerType(cv_basic_types[T_INT4]); cv_basic_types[T_32PUINT4] = DEBUG_FindOrMakePointerType(cv_basic_types[T_UINT4]); } static int numeric_leaf( int *value, unsigned short int *leaf ) { unsigned short int type = *leaf++; int length = 2; if ( type < LF_NUMERIC ) { *value = type; } else { switch ( type ) { case LF_CHAR: length += 1; *value = *(char *)leaf; break; case LF_SHORT: length += 2; *value = *(short *)leaf; break; case LF_USHORT: length += 2; *value = *(unsigned short *)leaf; break; case LF_LONG: length += 4; *value = *(int *)leaf; break; case LF_ULONG: length += 4; *value = *(unsigned int *)leaf; break; case LF_QUADWORD: case LF_UQUADWORD: length += 8; *value = 0; /* FIXME */ break; case LF_REAL32: length += 4; *value = 0; /* FIXME */ break; case LF_REAL48: length += 6; *value = 0; /* FIXME */ break; case LF_REAL64: length += 8; *value = 0; /* FIXME */ break; case LF_REAL80: length += 10; *value = 0; /* FIXME */ break; case LF_REAL128: length += 16; *value = 0; /* FIXME */ break; case LF_COMPLEX32: length += 4; *value = 0; /* FIXME */ break; case LF_COMPLEX64: length += 8; *value = 0; /* FIXME */ break; case LF_COMPLEX80: length += 10; *value = 0; /* FIXME */ break; case LF_COMPLEX128: length += 16; *value = 0; /* FIXME */ break; case LF_VARSTRING: length += 2 + *leaf; *value = 0; /* FIXME */ break; default: DEBUG_Printf( DBG_CHN_MESG, "Unknown numeric leaf type %04x\n", type ); *value = 0; break; } } return length; } static char * terminate_string( unsigned char *name ) { static char symname[256]; int namelen = name[0]; assert( namelen >= 0 && namelen < 256 ); memcpy( symname, name+1, namelen ); symname[namelen] = '\0'; if ( !*symname || strcmp( symname, "__unnamed" ) == 0 ) return NULL; else return symname; } static struct datatype * DEBUG_GetCVType(unsigned int typeno) { struct datatype * dt = NULL; /* * Convert Codeview type numbers into something we can grok internally. * Numbers < 0x1000 are all fixed builtin types. Numbers from 0x1000 and * up are all user defined (structs, etc). */ if ( typeno < 0x1000 ) { if ( typeno < MAX_BUILTIN_TYPES ) dt = cv_basic_types[typeno]; } else { if ( typeno - 0x1000 < num_cv_defined_types ) dt = cv_defined_types[typeno - 0x1000]; } return dt; } static int DEBUG_AddCVType( unsigned int typeno, struct datatype *dt ) { while ( typeno - 0x1000 >= num_cv_defined_types ) { num_cv_defined_types += 0x100; cv_defined_types = (struct datatype **) DBG_realloc( cv_defined_types, num_cv_defined_types * sizeof(struct datatype *) ); memset( cv_defined_types + num_cv_defined_types - 0x100, 0, 0x100 * sizeof(struct datatype *) ); if ( cv_defined_types == NULL ) return FALSE; } cv_defined_types[ typeno - 0x1000 ] = dt; return TRUE; } static void DEBUG_ClearTypeTable( void ) { if ( cv_defined_types ) DBG_free( cv_defined_types ); cv_defined_types = NULL; num_cv_defined_types = 0; } static int DEBUG_AddCVType_Pointer( unsigned int typeno, unsigned int datatype ) { struct datatype *dt = DEBUG_FindOrMakePointerType( DEBUG_GetCVType( datatype ) ); return DEBUG_AddCVType( typeno, dt ); } static int DEBUG_AddCVType_Array( unsigned int typeno, char *name, unsigned int elemtype, unsigned int arr_len ) { struct datatype *dt = DEBUG_NewDataType( DT_ARRAY, name ); struct datatype *elem = DEBUG_GetCVType( elemtype ); unsigned int elem_size = elem? DEBUG_GetObjectSize( elem ) : 0; unsigned int arr_max = elem_size? arr_len / elem_size : 0; DEBUG_SetArrayParams( dt, 0, arr_max, elem ); return DEBUG_AddCVType( typeno, dt ); } static int DEBUG_AddCVType_Bitfield( unsigned int typeno, unsigned int bitoff, unsigned int nbits, unsigned int basetype ) { struct datatype *dt = DEBUG_NewDataType( DT_BITFIELD, NULL ); struct datatype *base = DEBUG_GetCVType( basetype ); DEBUG_SetBitfieldParams( dt, bitoff, nbits, base ); return DEBUG_AddCVType( typeno, dt ); } static int DEBUG_AddCVType_EnumFieldList( unsigned int typeno, unsigned char *list, int len ) { struct datatype *dt = DEBUG_NewDataType( DT_ENUM, NULL ); unsigned char *ptr = list; while ( ptr - list < len ) { union codeview_fieldtype *type = (union codeview_fieldtype *)ptr; if ( *ptr >= 0xf0 ) /* LF_PAD... */ { ptr += *ptr & 0x0f; continue; } switch ( type->generic.id ) { case LF_ENUMERATE: { int value, vlen = numeric_leaf( &value, &type->enumerate.value ); unsigned char *name = (unsigned char *)&type->enumerate.value + vlen; DEBUG_AddStructElement( dt, terminate_string( name ), NULL, value, 0 ); ptr += 2 + 2 + vlen + (1 + name[0]); break; } default: DEBUG_Printf( DBG_CHN_MESG, "Unhandled type %04x in ENUM field list\n", type->generic.id ); return FALSE; } } return DEBUG_AddCVType( typeno, dt ); } static int DEBUG_AddCVType_StructFieldList( unsigned int typeno, unsigned char *list, int len ) { struct datatype *dt = DEBUG_NewDataType( DT_STRUCT, NULL ); unsigned char *ptr = list; while ( ptr - list < len ) { union codeview_fieldtype *type = (union codeview_fieldtype *)ptr; if ( *ptr >= 0xf0 ) /* LF_PAD... */ { ptr += *ptr & 0x0f; continue; } switch ( type->generic.id ) { case LF_BCLASS: { int offset, olen = numeric_leaf( &offset, &type->bclass.offset ); /* FIXME: ignored for now */ ptr += 2 + 2 + 2 + olen; break; } case LF_BCLASS_32: { int offset, olen = numeric_leaf( &offset, &type->bclass32.offset ); /* FIXME: ignored for now */ ptr += 2 + 2 + 4 + olen; break; } case LF_VBCLASS: case LF_IVBCLASS: { int vbpoff, vbplen = numeric_leaf( &vbpoff, &type->vbclass.vbpoff ); unsigned short int *p_vboff = (unsigned short int *)((char *)&type->vbclass.vbpoff + vbpoff); int vpoff, vplen = numeric_leaf( &vpoff, p_vboff ); /* FIXME: ignored for now */ ptr += 2 + 2 + 2 + 2 + vbplen + vplen; break; } case LF_VBCLASS_32: case LF_IVBCLASS_32: { int vbpoff, vbplen = numeric_leaf( &vbpoff, &type->vbclass32.vbpoff ); unsigned short int *p_vboff = (unsigned short int *)((char *)&type->vbclass32.vbpoff + vbpoff); int vpoff, vplen = numeric_leaf( &vpoff, p_vboff ); /* FIXME: ignored for now */ ptr += 2 + 2 + 4 + 4 + vbplen + vplen; break; } case LF_MEMBER: { int offset, olen = numeric_leaf( &offset, &type->member.offset ); unsigned char *name = (unsigned char *)&type->member.offset + olen; struct datatype *subtype = DEBUG_GetCVType( type->member.type ); int elem_size = subtype? DEBUG_GetObjectSize( subtype ) : 0; DEBUG_AddStructElement( dt, terminate_string( name ), subtype, offset << 3, elem_size << 3 ); ptr += 2 + 2 + 2 + olen + (1 + name[0]); break; } case LF_MEMBER_32: { int offset, olen = numeric_leaf( &offset, &type->member32.offset ); unsigned char *name = (unsigned char *)&type->member32.offset + olen; struct datatype *subtype = DEBUG_GetCVType( type->member32.type ); int elem_size = subtype? DEBUG_GetObjectSize( subtype ) : 0; DEBUG_AddStructElement( dt, terminate_string( name ), subtype, offset << 3, elem_size << 3 ); ptr += 2 + 2 + 4 + olen + (1 + name[0]); break; } case LF_STMEMBER: /* FIXME: ignored for now */ ptr += 2 + 2 + 2 + (1 + type->stmember.name[0]); break; case LF_STMEMBER_32: /* FIXME: ignored for now */ ptr += 2 + 4 + 2 + (1 + type->stmember32.name[0]); break; case LF_METHOD: /* FIXME: ignored for now */ ptr += 2 + 2 + 2 + (1 + type->method.name[0]); break; case LF_METHOD_32: /* FIXME: ignored for now */ ptr += 2 + 2 + 4 + (1 + type->method32.name[0]); break; case LF_NESTTYPE: /* FIXME: ignored for now */ ptr += 2 + 2 + (1 + type->nesttype.name[0]); break; case LF_NESTTYPE_32: /* FIXME: ignored for now */ ptr += 2 + 2 + 4 + (1 + type->nesttype32.name[0]); break; case LF_VFUNCTAB: /* FIXME: ignored for now */ ptr += 2 + 2; break; case LF_VFUNCTAB_32: /* FIXME: ignored for now */ ptr += 2 + 2 + 4; break; case LF_ONEMETHOD: /* FIXME: ignored for now */ switch ( (type->onemethod.attribute >> 2) & 7 ) { case 4: case 6: /* (pure) introducing virtual method */ ptr += 2 + 2 + 2 + 4 + (1 + type->onemethod_virt.name[0]); break; default: ptr += 2 + 2 + 2 + (1 + type->onemethod.name[0]); break; } break; case LF_ONEMETHOD_32: /* FIXME: ignored for now */ switch ( (type->onemethod32.attribute >> 2) & 7 ) { case 4: case 6: /* (pure) introducing virtual method */ ptr += 2 + 2 + 4 + 4 + (1 + type->onemethod32_virt.name[0]); break; default: ptr += 2 + 2 + 4 + (1 + type->onemethod32.name[0]); break; } break; default: DEBUG_Printf( DBG_CHN_MESG, "Unhandled type %04x in STRUCT field list\n", type->generic.id ); return FALSE; } } return DEBUG_AddCVType( typeno, dt ); } static int DEBUG_AddCVType_Enum( unsigned int typeno, char *name, unsigned int fieldlist ) { struct datatype *dt = DEBUG_NewDataType( DT_ENUM, name ); struct datatype *list = DEBUG_GetCVType( fieldlist ); if ( list ) if(DEBUG_CopyFieldlist( dt, list ) == FALSE) return FALSE; return DEBUG_AddCVType( typeno, dt ); } static int DEBUG_AddCVType_Struct( unsigned int typeno, char *name, int structlen, unsigned int fieldlist ) { struct datatype *dt = DEBUG_NewDataType( DT_STRUCT, name ); struct datatype *list = DEBUG_GetCVType( fieldlist ); if ( list ) { DEBUG_SetStructSize( dt, structlen ); if(DEBUG_CopyFieldlist( dt, list ) == FALSE) return FALSE; } return DEBUG_AddCVType( typeno, dt ); } static int DEBUG_ParseTypeTable( char *table, int len ) { unsigned int curr_type = 0x1000; char *ptr = table; while ( ptr - table < len ) { union codeview_type *type = (union codeview_type *) ptr; int retv = TRUE; switch ( type->generic.id ) { case LF_POINTER: retv = DEBUG_AddCVType_Pointer( curr_type, type->pointer.datatype ); break; case LF_POINTER_32: retv = DEBUG_AddCVType_Pointer( curr_type, type->pointer32.datatype ); break; case LF_ARRAY: { int arrlen, alen = numeric_leaf( &arrlen, &type->array.arrlen ); unsigned char *name = (unsigned char *)&type->array.arrlen + alen; retv = DEBUG_AddCVType_Array( curr_type, terminate_string( name ), type->array.elemtype, arrlen ); break; } case LF_ARRAY_32: { int arrlen, alen = numeric_leaf( &arrlen, &type->array32.arrlen ); unsigned char *name = (unsigned char *)&type->array32.arrlen + alen; retv = DEBUG_AddCVType_Array( curr_type, terminate_string( name ), type->array32.elemtype, type->array32.arrlen ); break; } case LF_BITFIELD: retv = DEBUG_AddCVType_Bitfield( curr_type, type->bitfield.bitoff, type->bitfield.nbits, type->bitfield.type ); break; case LF_BITFIELD_32: retv = DEBUG_AddCVType_Bitfield( curr_type, type->bitfield32.bitoff, type->bitfield32.nbits, type->bitfield32.type ); break; case LF_FIELDLIST: case LF_FIELDLIST_32: { /* * A 'field list' is a CodeView-specific data type which doesn't * directly correspond to any high-level data type. It is used * to hold the collection of members of a struct, class, union * or enum type. The actual definition of that type will follow * later, and refer to the field list definition record. * * As we don't have a field list type ourselves, we look ahead * in the field list to try to find out whether this field list * will be used for an enum or struct type, and create a dummy * type of the corresponding sort. Later on, the definition of * the 'real' type will copy the member / enumeration data. */ char *list = type->fieldlist.list; int len = (ptr + type->generic.len + 2) - list; if ( ((union codeview_fieldtype *)list)->generic.id == LF_ENUMERATE ) retv = DEBUG_AddCVType_EnumFieldList( curr_type, list, len ); else retv = DEBUG_AddCVType_StructFieldList( curr_type, list, len ); break; } case LF_STRUCTURE: case LF_CLASS: { int structlen, slen = numeric_leaf( &structlen, &type->structure.structlen ); unsigned char *name = (unsigned char *)&type->structure.structlen + slen; retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ), structlen, type->structure.fieldlist ); break; } case LF_STRUCTURE_32: case LF_CLASS_32: { int structlen, slen = numeric_leaf( &structlen, &type->structure32.structlen ); unsigned char *name = (unsigned char *)&type->structure32.structlen + slen; retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ), structlen, type->structure32.fieldlist ); break; } case LF_UNION: { int un_len, ulen = numeric_leaf( &un_len, &type->t_union.un_len ); unsigned char *name = (unsigned char *)&type->t_union.un_len + ulen; retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ), un_len, type->t_union.fieldlist ); break; } case LF_UNION_32: { int un_len, ulen = numeric_leaf( &un_len, &type->t_union32.un_len ); unsigned char *name = (unsigned char *)&type->t_union32.un_len + ulen; retv = DEBUG_AddCVType_Struct( curr_type, terminate_string( name ), un_len, type->t_union32.fieldlist ); break; } case LF_ENUM: retv = DEBUG_AddCVType_Enum( curr_type, terminate_string( type->enumeration.name ), type->enumeration.field ); break; case LF_ENUM_32: retv = DEBUG_AddCVType_Enum( curr_type, terminate_string( type->enumeration32.name ), type->enumeration32.field ); break; default: break; } if ( !retv ) return FALSE; curr_type++; ptr += type->generic.len + 2; } return TRUE; } /*======================================================================== * Process CodeView line number information. */ union any_size { char * c; short * s; int * i; unsigned int * ui; }; struct startend { unsigned int start; unsigned int end; }; struct codeview_linetab_hdr { unsigned int nline; unsigned int segno; unsigned int start; unsigned int end; char * sourcefile; unsigned short * linetab; unsigned int * offtab; }; static struct codeview_linetab_hdr * DEBUG_SnarfLinetab(char * linetab, int size) { int file_segcount; char filename[PATH_MAX]; unsigned int * filetab; char * fn; int i; int k; struct codeview_linetab_hdr * lt_hdr; unsigned int * lt_ptr; int nfile; int nseg; union any_size pnt; union any_size pnt2; struct startend * start; int this_seg; /* * Now get the important bits. */ pnt.c = linetab; nfile = *pnt.s++; nseg = *pnt.s++; filetab = (unsigned int *) pnt.c; /* * Now count up the number of segments in the file. */ nseg = 0; for(i=0; imsc_info->nomap; OMAP_DATA *omapp = module->msc_info->omapp; int i; if ( !nomap || !omapp ) return offset; /* FIXME: use binary search */ for ( i = 0; i < nomap-1; i++ ) if ( omapp[i].from <= offset && omapp[i+1].from > offset ) return !omapp[i].to? 0 : omapp[i].to + (offset - omapp[i].from); return 0; } static struct name_hash * DEBUG_AddCVSymbol( DBG_MODULE *module, char *name, int namelen, int type, unsigned int seg, unsigned int offset, int size, int cookie, int flags, struct codeview_linetab_hdr *linetab ) { int nsect = module->msc_info->nsect; PIMAGE_SECTION_HEADER sectp = module->msc_info->sectp; struct name_hash *symbol; char symname[PATH_MAX]; DBG_VALUE value; /* * Some sanity checks */ if ( !name || !namelen ) return NULL; if ( !seg || seg > nsect ) return NULL; /* * Convert type, address, and symbol name */ value.type = type? DEBUG_GetCVType( type ) : NULL; value.cookie = cookie; value.addr.seg = 0; value.addr.off = (unsigned int) module->load_addr + DEBUG_MapCVOffset( module, sectp[seg-1].VirtualAddress + offset ); memcpy( symname, name, namelen ); symname[namelen] = '\0'; /* * Check whether we have line number information */ if ( linetab ) { for ( ; linetab->linetab; linetab++ ) if ( linetab->segno == seg && linetab->start <= offset && linetab->end > offset ) break; if ( !linetab->linetab ) linetab = NULL; } /* * Create Wine symbol record */ symbol = DEBUG_AddSymbol( symname, &value, linetab? linetab->sourcefile : NULL, flags ); if ( size ) DEBUG_SetSymbolSize( symbol, size ); /* * Add line numbers if found */ if ( linetab ) { unsigned int i; for ( i = 0; i < linetab->nline; i++ ) if ( linetab->offtab[i] >= offset && linetab->offtab[i] < offset + size ) { DEBUG_AddLineNumber( symbol, linetab->linetab[i], linetab->offtab[i] - offset ); } } return symbol; } static struct wine_locals * DEBUG_AddCVLocal( struct name_hash *func, char *name, int namelen, int type, int offset ) { struct wine_locals *local; char symname[PATH_MAX]; memcpy( symname, name, namelen ); symname[namelen] = '\0'; local = DEBUG_AddLocal( func, 0, offset, 0, 0, symname ); DEBUG_SetLocalSymbolType( local, DEBUG_GetCVType( type ) ); return local; } static int DEBUG_SnarfCodeView( DBG_MODULE *module, LPBYTE root, int offset, int size, struct codeview_linetab_hdr *linetab ) { struct name_hash *curr_func = NULL; int i, length; /* * Loop over the different types of records and whenever we * find something we are interested in, record it and move on. */ for ( i = offset; i < size; i += length ) { union codeview_symbol *sym = (union codeview_symbol *)(root + i); length = sym->generic.len + 2; switch ( sym->generic.id ) { /* * Global and local data symbols. We don't associate these * with any given source file. */ case S_GDATA: case S_LDATA: case S_PUB: DEBUG_AddCVSymbol( module, sym->data.name, sym->data.namelen, sym->data.symtype, sym->data.seg, sym->data.offset, 0, DV_TARGET, SYM_WIN32 | SYM_DATA, NULL ); break; case S_GDATA_32: case S_LDATA_32: case S_PUB_32: DEBUG_AddCVSymbol( module, sym->data32.name, sym->data32.namelen, sym->data32.symtype, sym->data32.seg, sym->data32.offset, 0, DV_TARGET, SYM_WIN32 | SYM_DATA, NULL ); break; /* * Sort of like a global function, but it just points * to a thunk, which is a stupid name for what amounts to * a PLT slot in the normal jargon that everyone else uses. */ case S_THUNK: DEBUG_AddCVSymbol( module, sym->thunk.name, sym->thunk.namelen, 0, sym->thunk.segment, sym->thunk.offset, sym->thunk.thunk_len, DV_TARGET, SYM_WIN32 | SYM_FUNC, NULL ); break; /* * Global and static functions. */ case S_GPROC: case S_LPROC: DEBUG_Normalize( curr_func ); curr_func = DEBUG_AddCVSymbol( module, sym->proc.name, sym->proc.namelen, sym->proc.proctype, sym->proc.segment, sym->proc.offset, sym->proc.proc_len, DV_TARGET, SYM_WIN32 | SYM_FUNC, linetab ); DEBUG_SetSymbolBPOff( curr_func, sym->proc.debug_start ); break; case S_GPROC_32: case S_LPROC_32: DEBUG_Normalize( curr_func ); curr_func = DEBUG_AddCVSymbol( module, sym->proc32.name, sym->proc32.namelen, sym->proc32.proctype, sym->proc32.segment, sym->proc32.offset, sym->proc32.proc_len, DV_TARGET, SYM_WIN32 | SYM_FUNC, linetab ); DEBUG_SetSymbolBPOff( curr_func, sym->proc32.debug_start ); break; /* * Function parameters and stack variables. */ case S_BPREL: DEBUG_AddCVLocal( curr_func, sym->stack.name, sym->stack.namelen, sym->stack.symtype, sym->stack.offset ); break; case S_BPREL_32: DEBUG_AddCVLocal( curr_func, sym->stack32.name, sym->stack32.namelen, sym->stack32.symtype, sym->stack32.offset ); break; /* * These are special, in that they are always followed by an * additional length-prefixed string which is *not* included * into the symbol length count. We need to skip it. */ case S_PROCREF: case S_DATAREF: case S_LPROCREF: { LPBYTE name = (LPBYTE)sym + length; length += (*name + 1 + 3) & ~3; break; } } } DEBUG_Normalize( curr_func ); if ( linetab ) DBG_free(linetab); return TRUE; } /*======================================================================== * Process PDB file. */ #pragma pack(1) typedef struct _PDB_FILE { DWORD size; DWORD unknown; } PDB_FILE, *PPDB_FILE; typedef struct _PDB_HEADER { CHAR ident[40]; DWORD signature; DWORD blocksize; WORD freelist; WORD total_alloc; PDB_FILE toc; WORD toc_block[ 1 ]; } PDB_HEADER, *PPDB_HEADER; typedef struct _PDB_TOC { DWORD nFiles; PDB_FILE file[ 1 ]; } PDB_TOC, *PPDB_TOC; typedef struct _PDB_ROOT { DWORD version; DWORD TimeDateStamp; DWORD unknown; DWORD cbNames; CHAR names[ 1 ]; } PDB_ROOT, *PPDB_ROOT; typedef struct _PDB_TYPES_OLD { DWORD version; WORD first_index; WORD last_index; DWORD type_size; WORD file; WORD pad; } PDB_TYPES_OLD, *PPDB_TYPES_OLD; typedef struct _PDB_TYPES { DWORD version; DWORD type_offset; DWORD first_index; DWORD last_index; DWORD type_size; WORD file; WORD pad; DWORD hash_size; DWORD hash_base; DWORD hash_offset; DWORD hash_len; DWORD search_offset; DWORD search_len; DWORD unknown_offset; DWORD unknown_len; } PDB_TYPES, *PPDB_TYPES; typedef struct _PDB_SYMBOL_RANGE { WORD segment; WORD pad1; DWORD offset; DWORD size; DWORD characteristics; WORD index; WORD pad2; } PDB_SYMBOL_RANGE, *PPDB_SYMBOL_RANGE; typedef struct _PDB_SYMBOL_RANGE_EX { WORD segment; WORD pad1; DWORD offset; DWORD size; DWORD characteristics; WORD index; WORD pad2; DWORD timestamp; DWORD unknown; } PDB_SYMBOL_RANGE_EX, *PPDB_SYMBOL_RANGE_EX; typedef struct _PDB_SYMBOL_FILE { DWORD unknown1; PDB_SYMBOL_RANGE range; WORD flag; WORD file; DWORD symbol_size; DWORD lineno_size; DWORD unknown2; DWORD nSrcFiles; DWORD attribute; CHAR filename[ 1 ]; } PDB_SYMBOL_FILE, *PPDB_SYMBOL_FILE; typedef struct _PDB_SYMBOL_FILE_EX { DWORD unknown1; PDB_SYMBOL_RANGE_EX range; WORD flag; WORD file; DWORD symbol_size; DWORD lineno_size; DWORD unknown2; DWORD nSrcFiles; DWORD attribute; DWORD reserved[ 2 ]; CHAR filename[ 1 ]; } PDB_SYMBOL_FILE_EX, *PPDB_SYMBOL_FILE_EX; typedef struct _PDB_SYMBOL_SOURCE { WORD nModules; WORD nSrcFiles; WORD table[ 1 ]; } PDB_SYMBOL_SOURCE, *PPDB_SYMBOL_SOURCE; typedef struct _PDB_SYMBOL_IMPORT { DWORD unknown1; DWORD unknown2; DWORD TimeDateStamp; DWORD nRequests; CHAR filename[ 1 ]; } PDB_SYMBOL_IMPORT, *PPDB_SYMBOL_IMPORT; typedef struct _PDB_SYMBOLS_OLD { WORD hash1_file; WORD hash2_file; WORD gsym_file; WORD pad; DWORD module_size; DWORD offset_size; DWORD hash_size; DWORD srcmodule_size; } PDB_SYMBOLS_OLD, *PPDB_SYMBOLS_OLD; typedef struct _PDB_SYMBOLS { DWORD signature; DWORD version; DWORD unknown; DWORD hash1_file; DWORD hash2_file; DWORD gsym_file; DWORD module_size; DWORD offset_size; DWORD hash_size; DWORD srcmodule_size; DWORD pdbimport_size; DWORD resvd[ 5 ]; } PDB_SYMBOLS, *PPDB_SYMBOLS; #pragma pack() static void *pdb_read( LPBYTE image, WORD *block_list, int size ) { PPDB_HEADER pdb = (PPDB_HEADER)image; int i, nBlocks; LPBYTE buffer; if ( !size ) return NULL; nBlocks = (size + pdb->blocksize-1) / pdb->blocksize; buffer = DBG_alloc( nBlocks * pdb->blocksize ); for ( i = 0; i < nBlocks; i++ ) memcpy( buffer + i*pdb->blocksize, image + block_list[i]*pdb->blocksize, pdb->blocksize ); return buffer; } static void *pdb_read_file( LPBYTE image, PPDB_TOC toc, DWORD fileNr ) { PPDB_HEADER pdb = (PPDB_HEADER)image; WORD *block_list; DWORD i; if ( !toc || fileNr >= toc->nFiles ) return NULL; block_list = (WORD *) &toc->file[ toc->nFiles ]; for ( i = 0; i < fileNr; i++ ) block_list += (toc->file[i].size + pdb->blocksize-1) / pdb->blocksize; return pdb_read( image, block_list, toc->file[fileNr].size ); } static void pdb_free( void *buffer ) { DBG_free( buffer ); } static void pdb_convert_types_header( PDB_TYPES *types, char *image ) { memset( types, 0, sizeof(PDB_TYPES) ); if ( !image ) return; if ( *(DWORD *)image < 19960000 ) /* FIXME: correct version? */ { /* Old version of the types record header */ PDB_TYPES_OLD *old = (PDB_TYPES_OLD *)image; types->version = old->version; types->type_offset = sizeof(PDB_TYPES_OLD); types->type_size = old->type_size; types->first_index = old->first_index; types->last_index = old->last_index; types->file = old->file; } else { /* New version of the types record header */ *types = *(PDB_TYPES *)image; } } static void pdb_convert_symbols_header( PDB_SYMBOLS *symbols, int *header_size, char *image ) { memset( symbols, 0, sizeof(PDB_SYMBOLS) ); if ( !image ) return; if ( *(DWORD *)image != 0xffffffff ) { /* Old version of the symbols record header */ PDB_SYMBOLS_OLD *old = (PDB_SYMBOLS_OLD *)image; symbols->version = 0; symbols->module_size = old->module_size; symbols->offset_size = old->offset_size; symbols->hash_size = old->hash_size; symbols->srcmodule_size = old->srcmodule_size; symbols->pdbimport_size = 0; symbols->hash1_file = old->hash1_file; symbols->hash2_file = old->hash2_file; symbols->gsym_file = old->gsym_file; *header_size = sizeof(PDB_SYMBOLS_OLD); } else { /* New version of the symbols record header */ *symbols = *(PDB_SYMBOLS *)image; *header_size = sizeof(PDB_SYMBOLS); } } static enum DbgInfoLoad DEBUG_ProcessPDBFile( DBG_MODULE *module, const char *filename, DWORD timestamp ) { enum DbgInfoLoad dil = DIL_ERROR; HANDLE hFile, hMap; char *image = NULL; PDB_HEADER *pdb = NULL; PDB_TOC *toc = NULL; PDB_ROOT *root = NULL; char *types_image = NULL; char *symbols_image = NULL; PDB_TYPES types; PDB_SYMBOLS symbols; int header_size = 0; char *modimage, *file; DEBUG_Printf( DBG_CHN_TRACE, "Processing PDB file %s\n", filename ); /* * Open and map() .PDB file */ image = DEBUG_MapDebugInfoFile( filename, 0, 0, &hFile, &hMap ); if ( !image ) { DEBUG_Printf( DBG_CHN_ERR, "-Unable to peruse .PDB file %s\n", filename ); goto leave; } /* * Read in TOC and well-known files */ pdb = (PPDB_HEADER)image; toc = pdb_read( image, pdb->toc_block, pdb->toc.size ); root = pdb_read_file( image, toc, 1 ); types_image = pdb_read_file( image, toc, 2 ); symbols_image = pdb_read_file( image, toc, 3 ); pdb_convert_types_header( &types, types_image ); pdb_convert_symbols_header( &symbols, &header_size, symbols_image ); if ( !root ) { DEBUG_Printf( DBG_CHN_ERR, "-Unable to get root from .PDB file %s\n", filename ); goto leave; } /* * Check for unknown versions */ switch ( root->version ) { case 19950623: /* VC 4.0 */ case 19950814: case 19960307: /* VC 5.0 */ case 19970604: /* VC 6.0 */ break; default: DEBUG_Printf( DBG_CHN_ERR, "-Unknown root block version %ld\n", root->version ); } switch ( types.version ) { case 19950410: /* VC 4.0 */ case 19951122: case 19961031: /* VC 5.0 / 6.0 */ break; default: DEBUG_Printf( DBG_CHN_ERR, "-Unknown type info version %ld\n", types.version ); } switch ( symbols.version ) { case 0: /* VC 4.0 */ case 19960307: /* VC 5.0 */ case 19970606: /* VC 6.0 */ break; default: DEBUG_Printf( DBG_CHN_ERR, "-Unknown symbol info version %ld\n", symbols.version ); } /* * Check .PDB time stamp */ if ( root->TimeDateStamp != timestamp ) { DEBUG_Printf( DBG_CHN_ERR, "-Wrong time stamp of .PDB file %s (0x%08lx, 0x%08lx)\n", filename, root->TimeDateStamp, timestamp ); } /* * Read type table */ DEBUG_ParseTypeTable( types_image + types.type_offset, types.type_size ); /* * Read type-server .PDB imports */ if ( symbols.pdbimport_size ) { /* FIXME */ DEBUG_Printf(DBG_CHN_ERR, "-Type server .PDB imports ignored!\n" ); } /* * Read global symbol table */ modimage = pdb_read_file( image, toc, symbols.gsym_file ); if ( modimage ) { DEBUG_SnarfCodeView( module, modimage, 0, toc->file[symbols.gsym_file].size, NULL ); pdb_free( modimage ); } /* * Read per-module symbol / linenumber tables */ file = symbols_image + header_size; while ( file - symbols_image < header_size + symbols.module_size ) { int file_nr, file_index, symbol_size, lineno_size; char *file_name; if ( symbols.version < 19970000 ) { PDB_SYMBOL_FILE *sym_file = (PDB_SYMBOL_FILE *) file; file_nr = sym_file->file; file_name = sym_file->filename; file_index = sym_file->range.index; symbol_size = sym_file->symbol_size; lineno_size = sym_file->lineno_size; } else { PDB_SYMBOL_FILE_EX *sym_file = (PDB_SYMBOL_FILE_EX *) file; file_nr = sym_file->file; file_name = sym_file->filename; file_index = sym_file->range.index; symbol_size = sym_file->symbol_size; lineno_size = sym_file->lineno_size; } modimage = pdb_read_file( image, toc, file_nr ); if ( modimage ) { struct codeview_linetab_hdr *linetab = NULL; if ( lineno_size ) linetab = DEBUG_SnarfLinetab( modimage + symbol_size, lineno_size ); if ( symbol_size ) DEBUG_SnarfCodeView( module, modimage, sizeof(DWORD), symbol_size, linetab ); pdb_free( modimage ); } file_name += strlen(file_name) + 1; file = (char *)( (DWORD)(file_name + strlen(file_name) + 1 + 3) & ~3 ); } dil = DIL_LOADED; leave: /* * Cleanup */ DEBUG_ClearTypeTable(); if ( symbols_image ) pdb_free( symbols_image ); if ( types_image ) pdb_free( types_image ); if ( root ) pdb_free( root ); if ( toc ) pdb_free( toc ); DEBUG_UnmapDebugInfoFile(hFile, hMap, image); return dil; } /*======================================================================== * Process CodeView debug information. */ #define CODEVIEW_NB09_SIG ( 'N' | ('B' << 8) | ('0' << 16) | ('9' << 24) ) #define CODEVIEW_NB10_SIG ( 'N' | ('B' << 8) | ('1' << 16) | ('0' << 24) ) #define CODEVIEW_NB11_SIG ( 'N' | ('B' << 8) | ('1' << 16) | ('1' << 24) ) typedef struct _CODEVIEW_HEADER { DWORD dwSignature; DWORD lfoDirectory; } CODEVIEW_HEADER, *PCODEVIEW_HEADER; typedef struct _CODEVIEW_PDB_DATA { DWORD timestamp; DWORD unknown; CHAR name[ 1 ]; } CODEVIEW_PDB_DATA, *PCODEVIEW_PDB_DATA; typedef struct _CV_DIRECTORY_HEADER { WORD cbDirHeader; WORD cbDirEntry; DWORD cDir; DWORD lfoNextDir; DWORD flags; } CV_DIRECTORY_HEADER, *PCV_DIRECTORY_HEADER; typedef struct _CV_DIRECTORY_ENTRY { WORD subsection; WORD iMod; DWORD lfo; DWORD cb; } CV_DIRECTORY_ENTRY, *PCV_DIRECTORY_ENTRY; #define sstAlignSym 0x125 #define sstSrcModule 0x127 static enum DbgInfoLoad DEBUG_ProcessCodeView( DBG_MODULE *module, LPBYTE root ) { PCODEVIEW_HEADER cv = (PCODEVIEW_HEADER)root; enum DbgInfoLoad dil = DIL_ERROR; switch ( cv->dwSignature ) { case CODEVIEW_NB09_SIG: case CODEVIEW_NB11_SIG: { PCV_DIRECTORY_HEADER hdr = (PCV_DIRECTORY_HEADER)(root + cv->lfoDirectory); PCV_DIRECTORY_ENTRY ent, prev, next; unsigned int i; ent = (PCV_DIRECTORY_ENTRY)((LPBYTE)hdr + hdr->cbDirHeader); for ( i = 0; i < hdr->cDir; i++, ent = next ) { next = (i == hdr->cDir-1)? NULL : (PCV_DIRECTORY_ENTRY)((LPBYTE)ent + hdr->cbDirEntry); prev = (i == 0)? NULL : (PCV_DIRECTORY_ENTRY)((LPBYTE)ent - hdr->cbDirEntry); if ( ent->subsection == sstAlignSym ) { /* * Check the next and previous entry. If either is a * sstSrcModule, it contains the line number info for * this file. * * FIXME: This is not a general solution! */ struct codeview_linetab_hdr *linetab = NULL; if ( next && next->iMod == ent->iMod && next->subsection == sstSrcModule ) linetab = DEBUG_SnarfLinetab( root + next->lfo, next->cb ); if ( prev && prev->iMod == ent->iMod && prev->subsection == sstSrcModule ) linetab = DEBUG_SnarfLinetab( root + prev->lfo, prev->cb ); DEBUG_SnarfCodeView( module, root + ent->lfo, sizeof(DWORD), ent->cb, linetab ); } } dil = DIL_LOADED; break; } case CODEVIEW_NB10_SIG: { PCODEVIEW_PDB_DATA pdb = (PCODEVIEW_PDB_DATA)(cv + 1); dil = DEBUG_ProcessPDBFile( module, pdb->name, pdb->timestamp ); break; } default: DEBUG_Printf( DBG_CHN_ERR, "Unknown CODEVIEW signature %08lX in module %s\n", cv->dwSignature, module->module_name ); break; } return dil; } /*======================================================================== * Process debug directory. */ static enum DbgInfoLoad DEBUG_ProcessDebugDirectory( DBG_MODULE *module, LPBYTE file_map, PIMAGE_DEBUG_DIRECTORY dbg, int nDbg ) { enum DbgInfoLoad dil = DIL_ERROR; int i; /* First, watch out for OMAP data */ for ( i = 0; i < nDbg; i++ ) { if ( dbg[i].Type == IMAGE_DEBUG_TYPE_OMAP_FROM_SRC ) { module->msc_info->nomap = dbg[i].SizeOfData / sizeof(OMAP_DATA); module->msc_info->omapp = (OMAP_DATA *)(file_map + dbg[i].PointerToRawData); break; } } /* Now, try to parse CodeView debug info */ for ( i = 0; dil != DIL_LOADED && i < nDbg; i++ ) { if ( dbg[i].Type == IMAGE_DEBUG_TYPE_CODEVIEW ) { dil = DEBUG_ProcessCodeView( module, file_map + dbg[i].PointerToRawData ); } } /* If not found, try to parse COFF debug info */ for ( i = 0; dil != DIL_LOADED && i < nDbg; i++ ) { if ( dbg[i].Type == IMAGE_DEBUG_TYPE_COFF ) dil = DEBUG_ProcessCoff( module, file_map + dbg[i].PointerToRawData ); } #if 0 /* FIXME: this should be supported... this is the debug information for * functions compiled without a frame pointer (FPO = frame pointer omission) * the associated data helps finding out the relevant information */ for ( i = 0; i < nDbg; i++ ) if ( dbg[i].Type == IMAGE_DEBUG_TYPE_FPO ) DEBUG_Printf(DBG_CHN_MESG, "This guy has FPO information\n"); #define FRAME_FPO 0 #define FRAME_TRAP 1 #define FRAME_TSS 2 typedef struct _FPO_DATA { DWORD ulOffStart; /* offset 1st byte of function code */ DWORD cbProcSize; /* # bytes in function */ DWORD cdwLocals; /* # bytes in locals/4 */ WORD cdwParams; /* # bytes in params/4 */ WORD cbProlog : 8; /* # bytes in prolog */ WORD cbRegs : 3; /* # regs saved */ WORD fHasSEH : 1; /* TRUE if SEH in func */ WORD fUseBP : 1; /* TRUE if EBP has been allocated */ WORD reserved : 1; /* reserved for future use */ WORD cbFrame : 2; /* frame type */ } FPO_DATA; #endif return dil; } /*======================================================================== * Process DBG file. */ static enum DbgInfoLoad DEBUG_ProcessDBGFile( DBG_MODULE *module, const char *filename, DWORD timestamp ) { enum DbgInfoLoad dil = DIL_ERROR; HANDLE hFile = INVALID_HANDLE_VALUE, hMap = 0; LPBYTE file_map = NULL; PIMAGE_SEPARATE_DEBUG_HEADER hdr; PIMAGE_DEBUG_DIRECTORY dbg; int nDbg; DEBUG_Printf( DBG_CHN_TRACE, "Processing DBG file %s\n", filename ); file_map = DEBUG_MapDebugInfoFile( filename, 0, 0, &hFile, &hMap ); if ( !file_map ) { DEBUG_Printf( DBG_CHN_ERR, "-Unable to peruse .DBG file %s\n", filename ); goto leave; } hdr = (PIMAGE_SEPARATE_DEBUG_HEADER) file_map; if ( hdr->TimeDateStamp != timestamp ) { DEBUG_Printf( DBG_CHN_ERR, "Warning - %s has incorrect internal timestamp\n", filename ); /* * Well, sometimes this happens to DBG files which ARE REALLY the right .DBG * files but nonetheless this check fails. Anyway, WINDBG (debugger for * Windows by Microsoft) loads debug symbols which have incorrect timestamps. */ } dbg = (PIMAGE_DEBUG_DIRECTORY) ( file_map + sizeof(*hdr) + hdr->NumberOfSections * sizeof(IMAGE_SECTION_HEADER) + hdr->ExportedNamesSize ); nDbg = hdr->DebugDirectorySize / sizeof(*dbg); dil = DEBUG_ProcessDebugDirectory( module, file_map, dbg, nDbg ); leave: DEBUG_UnmapDebugInfoFile( hFile, hMap, file_map ); return dil; } /*======================================================================== * Process MSC debug information in PE file. */ enum DbgInfoLoad DEBUG_RegisterMSCDebugInfo( DBG_MODULE *module, HANDLE hFile, void *_nth, unsigned long nth_ofs ) { enum DbgInfoLoad dil = DIL_ERROR; PIMAGE_NT_HEADERS nth = (PIMAGE_NT_HEADERS)_nth; PIMAGE_DATA_DIRECTORY dir = nth->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_DEBUG; PIMAGE_DEBUG_DIRECTORY dbg = NULL; int nDbg; MSC_DBG_INFO extra_info = { 0, NULL, 0, NULL }; HANDLE hMap = 0; LPBYTE file_map = NULL; /* Read in section data */ module->msc_info = &extra_info; extra_info.nsect = nth->FileHeader.NumberOfSections; extra_info.sectp = DBG_alloc( extra_info.nsect * sizeof(IMAGE_SECTION_HEADER) ); if ( !extra_info.sectp ) goto leave; if ( !DEBUG_READ_MEM_VERBOSE( (char *)module->load_addr + nth_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) + nth->FileHeader.SizeOfOptionalHeader, extra_info.sectp, extra_info.nsect * sizeof(IMAGE_SECTION_HEADER) ) ) goto leave; /* Read in debug directory */ nDbg = dir->Size / sizeof(IMAGE_DEBUG_DIRECTORY); if ( !nDbg ) goto leave; dbg = (PIMAGE_DEBUG_DIRECTORY) DBG_alloc( nDbg * sizeof(IMAGE_DEBUG_DIRECTORY) ); if ( !dbg ) goto leave; if ( !DEBUG_READ_MEM_VERBOSE( (char *)module->load_addr + dir->VirtualAddress, dbg, nDbg * sizeof(IMAGE_DEBUG_DIRECTORY) ) ) goto leave; /* Map in PE file */ file_map = DEBUG_MapDebugInfoFile( NULL, 0, 0, &hFile, &hMap ); if ( !file_map ) goto leave; /* Parse debug directory */ if ( nth->FileHeader.Characteristics & IMAGE_FILE_DEBUG_STRIPPED ) { /* Debug info is stripped to .DBG file */ PIMAGE_DEBUG_MISC misc = (PIMAGE_DEBUG_MISC)(file_map + dbg->PointerToRawData); if ( nDbg != 1 || dbg->Type != IMAGE_DEBUG_TYPE_MISC || misc->DataType != IMAGE_DEBUG_MISC_EXENAME ) { DEBUG_Printf( DBG_CHN_ERR, "-Debug info stripped, but no .DBG file in module %s\n", module->module_name ); goto leave; } dil = DEBUG_ProcessDBGFile( module, misc->Data, nth->FileHeader.TimeDateStamp ); } else { /* Debug info is embedded into PE module */ /* FIXME: the nDBG information we're manipulating comes from the debuggee * address space. However, the following code will be made against the * version mapped in the debugger address space. There are cases (for example * when the PE sections are compressed in the file and become decompressed * in the debuggee address space) where the two don't match. * Therefore, redo the DBG information lookup with the mapped data */ PIMAGE_NT_HEADERS mpd_nth = (PIMAGE_NT_HEADERS)(file_map + nth_ofs); PIMAGE_DATA_DIRECTORY mpd_dir; PIMAGE_DEBUG_DIRECTORY mpd_dbg = NULL; /* sanity checks */ if ( mpd_nth->Signature != IMAGE_NT_SIGNATURE || mpd_nth->FileHeader.NumberOfSections != nth->FileHeader.NumberOfSections || (mpd_nth->FileHeader.Characteristics & IMAGE_FILE_DEBUG_STRIPPED) != 0) goto leave; mpd_dir = mpd_nth->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_DEBUG; if ((mpd_dir->Size / sizeof(IMAGE_DEBUG_DIRECTORY)) != nDbg) goto leave; mpd_dbg = (PIMAGE_DEBUG_DIRECTORY)(file_map + mpd_dir->VirtualAddress); dil = DEBUG_ProcessDebugDirectory( module, file_map, mpd_dbg, nDbg ); } leave: module->msc_info = NULL; DEBUG_UnmapDebugInfoFile( 0, hMap, file_map ); if ( extra_info.sectp ) DBG_free( extra_info.sectp ); if ( dbg ) DBG_free( dbg ); return dil; } /*======================================================================== * look for stabs information in PE header (it's how mingw compiler provides its * debugging information), and also wine PE <-> ELF linking through .wsolnk sections */ enum DbgInfoLoad DEBUG_RegisterStabsDebugInfo(DBG_MODULE* module, HANDLE hFile, void* _nth, unsigned long nth_ofs) { IMAGE_SECTION_HEADER pe_seg; unsigned long pe_seg_ofs; int i, stabsize = 0, stabstrsize = 0; unsigned int stabs = 0, stabstr = 0; PIMAGE_NT_HEADERS nth = (PIMAGE_NT_HEADERS)_nth; enum DbgInfoLoad dil = DIL_ERROR; pe_seg_ofs = nth_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) + nth->FileHeader.SizeOfOptionalHeader; for (i = 0; i < nth->FileHeader.NumberOfSections; i++, pe_seg_ofs += sizeof(pe_seg)) { if (!DEBUG_READ_MEM_VERBOSE((void*)((char *)module->load_addr + pe_seg_ofs), &pe_seg, sizeof(pe_seg))) continue; if (!strcasecmp(pe_seg.Name, ".stab")) { stabs = pe_seg.VirtualAddress; stabsize = pe_seg.SizeOfRawData; } else if (!strncasecmp(pe_seg.Name, ".stabstr", 8)) { stabstr = pe_seg.VirtualAddress; stabstrsize = pe_seg.SizeOfRawData; } } if (stabstrsize && stabsize) { char* s1 = DBG_alloc(stabsize+stabstrsize); if (s1) { if (DEBUG_READ_MEM_VERBOSE((char*)module->load_addr + stabs, s1, stabsize) && DEBUG_READ_MEM_VERBOSE((char*)module->load_addr + stabstr, s1 + stabsize, stabstrsize)) { dil = DEBUG_ParseStabs(s1, 0, 0, stabsize, stabsize, stabstrsize); } else { DEBUG_Printf(DBG_CHN_MESG, "couldn't read data block\n"); } DBG_free(s1); } else { DEBUG_Printf(DBG_CHN_MESG, "couldn't alloc %d bytes\n", stabsize + stabstrsize); } } else { dil = DIL_NOINFO; } return dil; }