loader/pe_image.c

   1 /*
   2  *  Copyright   1994    Eric Youndale & Erik Bos
   3  *  Copyright   1995    Martin von Löwis
   4  *  Copyright   1996-98 Marcus Meissner
   5  *
   6  *      based on Eric Youndale's pe-test and:
   7  *      ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23 /* Notes:
  24  * Before you start changing something in this file be aware of the following:
  25  *
  26  * - There are several functions called recursively. In a very subtle and
  27  *   obscure way. DLLs can reference each other recursively etc.
  28  * - If you want to enhance, speed up or clean up something in here, think
  29  *   twice WHY it is implemented in that strange way. There is usually a reason.
  30  *   Though sometimes it might just be lazyness ;)
  31  * - In PE_MapImage, right before PE_fixup_imports() all external and internal
  32  *   state MUST be correct since this function can be called with the SAME image
  33  *   AGAIN. (Thats recursion for you.) That means MODREF.module and
  34  *   NE_MODULE.module32.
  35  */
  36
  37 #include "config.h"
  38
  39 #include <sys/types.h>
  40 #ifdef HAVE_SYS_MMAN_H
  41 #include <sys/mman.h>
  42 #endif
  43 #include <string.h>
  44 #include "wine/winbase16.h"
  45 #include "winerror.h"
  46 #include "snoop.h"
  47 #include "wine/server.h"
  48 #include "wine/debug.h"
  49
  50 WINE_DEFAULT_DEBUG_CHANNEL(win32);
  51 WINE_DECLARE_DEBUG_CHANNEL(delayhlp);
  52 WINE_DECLARE_DEBUG_CHANNEL(fixup);
  53 WINE_DECLARE_DEBUG_CHANNEL(module);
  54 WINE_DECLARE_DEBUG_CHANNEL(relay);
  55 WINE_DECLARE_DEBUG_CHANNEL(segment);
  56
  57
  58 static IMAGE_EXPORT_DIRECTORY *get_exports( HMODULE hmod )
  59 {
  60     IMAGE_EXPORT_DIRECTORY *ret = NULL;
  61     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  62                                 + IMAGE_DIRECTORY_ENTRY_EXPORT;
  63     if (dir->Size && dir->VirtualAddress)
  64         ret = (IMAGE_EXPORT_DIRECTORY *)((char *)hmod + dir->VirtualAddress);
  65     return ret;
  66 }
  67
  68 static IMAGE_IMPORT_DESCRIPTOR *get_imports( HMODULE hmod )
  69 {
  70     IMAGE_IMPORT_DESCRIPTOR *ret = NULL;
  71     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  72                                 + IMAGE_DIRECTORY_ENTRY_IMPORT;
  73     if (dir->Size && dir->VirtualAddress)
  74         ret = (IMAGE_IMPORT_DESCRIPTOR *)((char *)hmod + dir->VirtualAddress);
  75     return ret;
  76 }
  77
  78
  79 /* convert PE image VirtualAddress to Real Address */
  80 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
  81
  82 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  83
  84 void dump_exports( HMODULE hModule )
  85 {
  86   char          *Module;
  87   int           i, j;
  88   WORD          *ordinal;
  89   DWORD         *function,*functions;
  90   BYTE          **name;
  91   unsigned int load_addr = hModule;
  92
  93   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  94                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
  95   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
  96                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
  97   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
  98
  99   Module = (char*)RVA(pe_exports->Name);
 100   DPRINTF("*******EXPORT DATA*******\n");
 101   DPRINTF("Module name is %s, %ld functions, %ld names\n",
 102           Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
 103
 104   ordinal = RVA(pe_exports->AddressOfNameOrdinals);
 105   functions = function = RVA(pe_exports->AddressOfFunctions);
 106   name = RVA(pe_exports->AddressOfNames);
 107
 108   DPRINTF(" Ord    RVA     Addr   Name\n" );
 109   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
 110   {
 111       if (!*function) continue;  /* No such function */
 112       DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
 113       /* Check if we have a name for it */
 114       for (j = 0; j < pe_exports->NumberOfNames; j++)
 115           if (ordinal[j] == i)
 116           {
 117               DPRINTF( "  %s", (char*)RVA(name[j]) );
 118               break;
 119           }
 120       if ((*function >= rva_start) && (*function <= rva_end))
 121           DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
 122       DPRINTF("\n");
 123   }
 124 }
 125
 126 /* Look up the specified function or ordinal in the export list:
 127  * If it is a string:
 128  *      - look up the name in the name list.
 129  *      - look up the ordinal with that index.
 130  *      - use the ordinal as offset into the functionlist
 131  * If it is an ordinal:
 132  *      - use ordinal-pe_export->Base as offset into the function list
 133  */
 134 static FARPROC PE_FindExportedFunction(
 135         WINE_MODREF *wm,        /* [in] WINE modreference */
 136         LPCSTR funcName,        /* [in] function name */
 137         BOOL snoop )
 138 {
 139         WORD                            * ordinals;
 140         DWORD                           * function;
 141         BYTE                            ** name, *ename = NULL;
 142         int                             i, ordinal;
 143         unsigned int                    load_addr = wm->module;
 144         DWORD                           rva_start, rva_end, addr;
 145         char                            * forward;
 146         IMAGE_EXPORT_DIRECTORY *exports = get_exports(wm->module);
 147
 148         if (HIWORD(funcName))
 149                 TRACE("(%s)\n",funcName);
 150         else
 151                 TRACE("(%d)\n",(int)funcName);
 152         if (!exports) {
 153                 /* Not a fatal problem, some apps do
 154                  * GetProcAddress(0,"RegisterPenApp") which triggers this
 155                  * case.
 156                  */
 157                 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,wm);
 158                 return NULL;
 159         }
 160         ordinals= RVA(exports->AddressOfNameOrdinals);
 161         function= RVA(exports->AddressOfFunctions);
 162         name    = RVA(exports->AddressOfNames);
 163         forward = NULL;
 164         rva_start = PE_HEADER(wm->module)->OptionalHeader
 165                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 166         rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
 167                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 168
 169         if (HIWORD(funcName))
 170         {
 171             /* first try a binary search */
 172             int min = 0, max = exports->NumberOfNames - 1;
 173             while (min <= max)
 174             {
 175                 int res, pos = (min + max) / 2;
 176                 ename = RVA(name[pos]);
 177                 if (!(res = strcmp( ename, funcName )))
 178                 {
 179                     ordinal = ordinals[pos];
 180                     goto found;
 181                 }
 182                 if (res > 0) max = pos - 1;
 183                 else min = pos + 1;
 184             }
 185             /* now try a linear search in case the names aren't sorted properly */
 186             for (i = 0; i < exports->NumberOfNames; i++)
 187             {
 188                 ename = RVA(name[i]);
 189                 if (!strcmp( ename, funcName ))
 190                 {
 191                     ERR( "%s.%s required a linear search\n", wm->modname, funcName );
 192                     ordinal = ordinals[i];
 193                     goto found;
 194                 }
 195             }
 196             return NULL;
 197         }
 198         else  /* find by ordinal */
 199         {
 200             ordinal = LOWORD(funcName) - exports->Base;
 201             if (snoop && name)  /* need to find a name for it */
 202             {
 203                 for (i = 0; i < exports->NumberOfNames; i++)
 204                     if (ordinals[i] == ordinal)
 205                     {
 206                         ename = RVA(name[i]);
 207                         break;
 208                     }
 209             }
 210         }
 211
 212  found:
 213         if (ordinal >= exports->NumberOfFunctions)
 214         {
 215             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 216             return NULL;
 217         }
 218         addr = function[ordinal];
 219         if (!addr) return NULL;
 220         if ((addr < rva_start) || (addr >= rva_end))
 221         {
 222             FARPROC proc = RVA(addr);
 223             if (snoop)
 224             {
 225                 if (!ename) ename = "@";
 226                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 227             }
 228             return proc;
 229         }
 230         else  /* forward entry point */
 231         {
 232                 WINE_MODREF *wm_fw;
 233                 FARPROC proc;
 234                 char *forward = RVA(addr);
 235                 char module[256];
 236                 char *end = strchr(forward, '.');
 237
 238                 if (!end) return NULL;
 239                 if (end - forward >= sizeof(module)) return NULL;
 240                 memcpy( module, forward, end - forward );
 241                 module[end-forward] = 0;
 242                 if (!(wm_fw = MODULE_FindModule( module )))
 243                 {
 244                     ERR("module not found for forward '%s' used by '%s'\n", forward, wm->modname );
 245                     return NULL;
 246                 }
 247                 if (!(proc = MODULE_GetProcAddress( wm_fw->module, end + 1, snoop )))
 248                     ERR("function not found for forward '%s' used by '%s'. If you are using builtin '%s', try using the native one instead.\n", forward, wm->modname, wm->modname );
 249                 return proc;
 250         }
 251 }
 252
 253 /****************************************************************
 254  *      PE_fixup_imports
 255  */
 256 DWORD PE_fixup_imports( WINE_MODREF *wm )
 257 {
 258     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 259     unsigned int load_addr      = wm->module;
 260     int                         i,characteristics_detection=1;
 261     IMAGE_IMPORT_DESCRIPTOR *imports = get_imports(wm->module);
 262
 263     /* first, count the number of imported non-internal modules */
 264     pe_imp = imports;
 265     if (!pe_imp) return 0;
 266
 267     /* OK, now dump the import list */
 268     TRACE("Dumping imports list\n");
 269
 270     /* We assume that we have at least one import with !0 characteristics and
 271      * detect broken imports with all characteristics 0 (notably Borland) and
 272      * switch the detection off for them.
 273      */
 274     for (i = 0; pe_imp->Name ; pe_imp++) {
 275         if (!i && !pe_imp->u.Characteristics)
 276                 characteristics_detection = 0;
 277         if (characteristics_detection && !pe_imp->u.Characteristics)
 278                 break;
 279         i++;
 280     }
 281     if (!i) return 0;  /* no imports */
 282
 283     /* Allocate module dependency list */
 284     wm->nDeps = i;
 285     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 286
 287     /* load the imported modules. They are automatically
 288      * added to the modref list of the process.
 289      */
 290
 291     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 292         WINE_MODREF             *wmImp;
 293         IMAGE_IMPORT_BY_NAME    *pe_name;
 294         PIMAGE_THUNK_DATA       import_list,thunk_list;
 295         char                    *name = (char *) RVA(pe_imp->Name);
 296
 297         if (characteristics_detection && !pe_imp->u.Characteristics)
 298                 break;
 299
 300         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 301         if (!wmImp) {
 302             ERR_(module)("Module (file) %s (which is needed by %s) not found\n", name, wm->filename);
 303             return 1;
 304         }
 305         wm->deps[i++] = wmImp;
 306
 307         /* FIXME: forwarder entries ... */
 308
 309         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 310             TRACE("Microsoft style imports used\n");
 311             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 312             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 313
 314             while (import_list->u1.Ordinal) {
 315                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 316                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 317
 318                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 319                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 320                         wmImp->module, (LPCSTR)ordinal, TRUE
 321                     );
 322                     if (!thunk_list->u1.Function) {
 323                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 324                                 name, ordinal, wm->filename );
 325                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 326                     }
 327                 } else {                /* import by name */
 328                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 329                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 330                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 331                         wmImp->module, pe_name->Name, TRUE
 332                     );
 333                     if (!thunk_list->u1.Function) {
 334                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 335                                 name,pe_name->Hint,pe_name->Name,wm->filename);
 336                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 337                     }
 338                 }
 339                 import_list++;
 340                 thunk_list++;
 341             }
 342         } else {        /* Borland style */
 343             TRACE("Borland style imports used\n");
 344             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 345             while (thunk_list->u1.Ordinal) {
 346                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 347                     /* not sure about this branch, but it seems to work */
 348                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 349
 350                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 351                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 352                         wmImp->module, (LPCSTR) ordinal, TRUE
 353                     );
 354                     if (!thunk_list->u1.Function) {
 355                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 356                                 name,ordinal, wm->filename);
 357                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 358                     }
 359                 } else {
 360                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 361                     TRACE("--- %s %s.%d\n",
 362                                   pe_name->Name,name,pe_name->Hint);
 363                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 364                         wmImp->module, pe_name->Name, TRUE
 365                     );
 366                     if (!thunk_list->u1.Function) {
 367                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 368                                 name, pe_name->Hint, pe_name->Name, wm->filename);
 369                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 370                     }
 371                 }
 372                 thunk_list++;
 373             }
 374         }
 375     }
 376     return 0;
 377 }
 378
 379 /***********************************************************************
 380  *           do_relocations
 381  *
 382  * Apply the relocations to a mapped PE image
 383  */
 384 static int do_relocations( char *base, const IMAGE_NT_HEADERS *nt, const char *filename )
 385 {
 386     const IMAGE_DATA_DIRECTORY *dir;
 387     const IMAGE_BASE_RELOCATION *rel;
 388     int delta = base - (char *)nt->OptionalHeader.ImageBase;
 389
 390     dir = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 391     rel = (IMAGE_BASE_RELOCATION *)(base + dir->VirtualAddress);
 392
 393     WARN("Info: base relocations needed for %s\n", filename);
 394     if (!dir->VirtualAddress || !dir->Size)
 395     {
 396         if (nt->OptionalHeader.ImageBase == 0x400000)
 397             ERR("Standard load address for a Win32 program (0x00400000) not available - security-patched kernel ?\n");
 398         ERR( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 399              filename,
 400              (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 401              "stripped during link" : "unknown reason" );
 402         return 0;
 403     }
 404
 405     /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
 406      *        really make sure that the *new* base address is also > 2GB.
 407      *        Some DLLs really check the MSB of the module handle :-/
 408      */
 409     if ((nt->OptionalHeader.ImageBase & 0x80000000) && !((DWORD)base & 0x80000000))
 410         ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
 411
 412     for ( ; ((char *)rel < base + dir->VirtualAddress + dir->Size) && rel->SizeOfBlock;
 413           rel = (IMAGE_BASE_RELOCATION*)((char*)rel + rel->SizeOfBlock))
 414     {
 415         char *page = base + rel->VirtualAddress;
 416         WORD *TypeOffset = (WORD *)(rel + 1);
 417         int i, count = (rel->SizeOfBlock - sizeof(*rel)) / sizeof(*TypeOffset);
 418
 419         if (!count) continue;
 420
 421         /* sanity checks */
 422         if ((char *)rel + rel->SizeOfBlock > base + dir->VirtualAddress + dir->Size ||
 423             page > base + nt->OptionalHeader.SizeOfImage)
 424         {
 425             ERR_(module)("invalid relocation %p,%lx,%ld at %p,%lx,%lx\n",
 426                          rel, rel->VirtualAddress, rel->SizeOfBlock,
 427                          base, dir->VirtualAddress, dir->Size );
 428             return 0;
 429         }
 430
 431         TRACE_(module)("%ld relocations for page %lx\n", rel->SizeOfBlock, rel->VirtualAddress);
 432
 433         /* patching in reverse order */
 434         for (i = 0 ; i < count; i++)
 435         {
 436             int offset = TypeOffset[i] & 0xFFF;
 437             int type = TypeOffset[i] >> 12;
 438             switch(type)
 439             {
 440             case IMAGE_REL_BASED_ABSOLUTE:
 441                 break;
 442             case IMAGE_REL_BASED_HIGH:
 443                 *(short*)(page+offset) += HIWORD(delta);
 444                 break;
 445             case IMAGE_REL_BASED_LOW:
 446                 *(short*)(page+offset) += LOWORD(delta);
 447                 break;
 448             case IMAGE_REL_BASED_HIGHLOW:
 449                 *(int*)(page+offset) += delta;
 450                 /* FIXME: if this is an exported address, fire up enhanced logic */
 451                 break;
 452             default:
 453                 FIXME_(module)("Unknown/unsupported fixup type %d.\n", type);
 454                 break;
 455             }
 456         }
 457     }
 458     return 1;
 459 }
 460
 461
 462 /**********************************************************************
 463  *                      PE_LoadImage
 464  * Load one PE format DLL/EXE into memory
 465  *
 466  * Unluckily we can't just mmap the sections where we want them, for
 467  * (at least) Linux does only support offsets which are page-aligned.
 468  *
 469  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 470  * want to access them. (HMODULE points to the start of it)
 471  */
 472 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 473 {
 474     IMAGE_NT_HEADERS *nt;
 475     HMODULE hModule;
 476     HANDLE mapping;
 477     void *base;
 478
 479     TRACE_(module)( "loading %s\n", filename );
 480
 481     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 482     if (!mapping) return 0;
 483     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 484     CloseHandle( mapping );
 485     if (!base) return 0;
 486
 487     hModule = (HMODULE)base;
 488
 489     /* perform base relocation, if necessary */
 490
 491     nt = PE_HEADER( hModule );
 492     if (hModule != nt->OptionalHeader.ImageBase)
 493     {
 494         if (!do_relocations( base, nt, filename ))
 495         {
 496             UnmapViewOfFile( base );
 497             SetLastError( ERROR_BAD_EXE_FORMAT );
 498             return 0;
 499         }
 500     }
 501
 502     /* virus check */
 503
 504     if (nt->OptionalHeader.AddressOfEntryPoint)
 505     {
 506         int i;
 507         IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader +
 508                                                             nt->FileHeader.SizeOfOptionalHeader);
 509         for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
 510         {
 511             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress)
 512                 continue;
 513             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress+sec->SizeOfRawData)
 514                 break;
 515         }
 516         if (i == nt->FileHeader.NumberOfSections)
 517             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 518                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 519                     nt->OptionalHeader.AddressOfEntryPoint );
 520     }
 521
 522     return hModule;
 523 }
 524
 525 /**********************************************************************
 526  *                 PE_CreateModule
 527  *
 528  * Create WINE_MODREF structure for loaded HMODULE, link it into
 529  * process modref_list, and fixup all imports.
 530  *
 531  * Note: hModule must point to a correctly allocated PE image,
 532  *       with base relocations applied; the 16-bit dummy module
 533  *       associated to hModule must already exist.
 534  *
 535  * Note: This routine must always be called in the context of the
 536  *       process that is to own the module to be created.
 537  *
 538  * Note: Assumes that the process critical section is held
 539  */
 540 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 541                               HANDLE hFile, BOOL builtin )
 542 {
 543     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 544     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 545     IMAGE_DATA_DIRECTORY *dir;
 546     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 547     WINE_MODREF *wm;
 548     HMODULE16 hModule16;
 549
 550     /* Retrieve DataDirectory entries */
 551
 552     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 553     if (dir->Size)
 554         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 555
 556     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 557     if (dir->Size) FIXME("Exception directory ignored\n" );
 558
 559     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 560     if (dir->Size) FIXME("Security directory ignored\n" );
 561
 562     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 563     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 564
 565     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 566     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 567
 568     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 569
 570     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 571     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 572
 573     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 574     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 575
 576     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 577     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 578
 579     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 580     if (dir->Size)
 581     {
 582                 TRACE("Delayed import, stub calls LoadLibrary\n" );
 583                 /*
 584                  * Nothing to do here.
 585                  */
 586
 587 #ifdef ImgDelayDescr
 588                 /*
 589                  * This code is useful to observe what the heck is going on.
 590                  */
 591                 {
 592                 ImgDelayDescr *pe_delay = NULL;
 593         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 594         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 595         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 596         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 597         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 598         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 599         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 600         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 601         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 602         }
 603 #endif /* ImgDelayDescr */
 604         }
 605
 606     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 607     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 608
 609     dir = nt->OptionalHeader.DataDirectory+15;
 610     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 611
 612     /* Create 16-bit dummy module */
 613
 614     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 615     {
 616         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 617         return NULL;
 618     }
 619
 620     /* Allocate and fill WINE_MODREF */
 621
 622     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 623     {
 624         FreeLibrary16( hModule16 );
 625         return NULL;
 626     }
 627     wm->hDummyMod = hModule16;
 628
 629     if ( builtin )
 630     {
 631         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 632         pModule->flags |= NE_FFLAGS_BUILTIN;
 633         wm->flags |= WINE_MODREF_INTERNAL;
 634     }
 635     else if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 636         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 637
 638     wm->find_export = PE_FindExportedFunction;
 639
 640     /* Dump Exports */
 641
 642     if (pe_export && TRACE_ON(win32))
 643         dump_exports( hModule );
 644
 645     /* Fixup Imports */
 646
 647     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
 648         PE_fixup_imports( wm ))
 649     {
 650         /* remove entry from modref chain */
 651
 652         if ( !wm->prev )
 653             MODULE_modref_list = wm->next;
 654         else
 655             wm->prev->next = wm->next;
 656
 657         if ( wm->next ) wm->next->prev = wm->prev;
 658         wm->next = wm->prev = NULL;
 659
 660         /* FIXME: there are several more dangling references
 661          * left. Including dlls loaded by this dll before the
 662          * failed one. Unrolling is rather difficult with the
 663          * current structure and we can leave them lying
 664          * around with no problems, so we don't care.
 665          * As these might reference our wm, we don't free it.
 666          */
 667          return NULL;
 668     }
 669
 670     if (!builtin && pe_export)
 671         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 672
 673     /* Send DLL load event */
 674     /* we don't need to send a dll event for the main exe */
 675
 676     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 677     {
 678         if (hFile)
 679         {
 680             UINT drive_type = GetDriveTypeA( wm->short_filename );
 681             /* don't keep the file handle open on removable media */
 682             if (drive_type == DRIVE_REMOVABLE || drive_type == DRIVE_CDROM) hFile = 0;
 683         }
 684         SERVER_START_REQ( load_dll )
 685         {
 686             req->handle     = hFile;
 687             req->base       = (void *)hModule;
 688             req->size       = nt->OptionalHeader.SizeOfImage;
 689             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 690             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 691             req->name       = &wm->filename;
 692             wine_server_add_data( req, wm->filename, strlen(wm->filename) );
 693             wine_server_call( req );
 694         }
 695         SERVER_END_REQ;
 696     }
 697
 698     return wm;
 699 }
 700
 701 /******************************************************************************
 702  * The PE Library Loader frontend.
 703  * FIXME: handle the flags.
 704  */
 705 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 706 {
 707         HMODULE         hModule32;
 708         WINE_MODREF     *wm;
 709         HANDLE          hFile;
 710
 711         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 712                              NULL, OPEN_EXISTING, 0, 0 );
 713         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 714
 715         /* Load PE module */
 716         hModule32 = PE_LoadImage( hFile, name, flags );
 717         if (!hModule32)
 718         {
 719                 CloseHandle( hFile );
 720                 return NULL;
 721         }
 722
 723         /* Create 32-bit MODREF */
 724         if ( !(wm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) )
 725         {
 726                 ERR( "can't load %s\n", name );
 727                 CloseHandle( hFile );
 728                 SetLastError( ERROR_OUTOFMEMORY );
 729                 return NULL;
 730         }
 731
 732         CloseHandle( hFile );
 733         return wm;
 734 }
 735
 736
 737 /* Called if the library is loaded or freed.
 738  * NOTE: if a thread attaches a DLL, the current thread will only do
 739  * DLL_PROCESS_ATTACH. Only newly created threads do DLL_THREAD_ATTACH
 740  * (SDK)
 741  */
 742 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 743
 744 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 745 {
 746     BOOL retv = TRUE;
 747     IMAGE_NT_HEADERS *nt = PE_HEADER(module);
 748
 749     /* Is this a library? And has it got an entrypoint? */
 750     if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 751         (nt->OptionalHeader.AddressOfEntryPoint))
 752     {
 753         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 754         if (TRACE_ON(relay))
 755             DPRINTF("%08lx:Call PE DLL (proc=%p,module=%08x,type=%ld,res=%p)\n",
 756                     GetCurrentThreadId(), entry, module, type, lpReserved );
 757         retv = entry( module, type, lpReserved );
 758         if (TRACE_ON(relay))
 759             DPRINTF("%08lx:Ret  PE DLL (proc=%p,module=%08x,type=%ld,res=%p) retval=%x\n",
 760                     GetCurrentThreadId(), entry, module, type, lpReserved, retv );
 761     }
 762
 763     return retv;
 764 }
 765
 766 /************************************************************************
 767  *      PE_InitTls                      (internal)
 768  *
 769  * If included, initialises the thread local storages of modules.
 770  * Pointers in those structs are not RVAs but real pointers which have been
 771  * relocated by do_relocations() already.
 772  */
 773 static LPVOID
 774 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 775         if (    ((DWORD)addr>opt->ImageBase) &&
 776                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 777         )
 778                 /* the address has not been relocated! */
 779                 return (LPVOID)(((DWORD)addr)+delta);
 780         else
 781                 /* the address has been relocated already */
 782                 return addr;
 783 }
 784 void PE_InitTls( void )
 785 {
 786         WINE_MODREF             *wm;
 787         IMAGE_NT_HEADERS        *peh;
 788         DWORD                   size,datasize;
 789         LPVOID                  mem;
 790         PIMAGE_TLS_DIRECTORY    pdir;
 791         int delta;
 792
 793         for (wm = MODULE_modref_list;wm;wm=wm->next) {
 794                 peh = PE_HEADER(wm->module);
 795                 delta = wm->module - peh->OptionalHeader.ImageBase;
 796                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 797                         continue;
 798                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 799                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 800
 801
 802                 if ( wm->tlsindex == -1 ) {
 803                         LPDWORD xaddr;
 804                         wm->tlsindex = TlsAlloc();
 805                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 806                                         pdir->AddressOfIndex
 807                         );
 808                         *xaddr=wm->tlsindex;
 809                 }
 810                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 811                 size    = datasize + pdir->SizeOfZeroFill;
 812                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 813                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 814                 if (pdir->AddressOfCallBacks) {
 815                      PIMAGE_TLS_CALLBACK *cbs;
 816
 817                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 818                      if (*cbs)
 819                        FIXME("TLS Callbacks aren't going to be called\n");
 820                 }
 821
 822                 TlsSetValue( wm->tlsindex, mem );
 823         }
 824 }
 825