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 /* convert PE image VirtualAddress to Real Address */
  59 inline static void *get_rva( HMODULE module, DWORD va )
  60 {
  61     return (void *)((char *)module + va);
  62 }
  63
  64 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  65
  66 void dump_exports( HMODULE hModule )
  67 {
  68   char          *Module;
  69   int           i, j;
  70   WORD          *ordinal;
  71   DWORD         *function,*functions;
  72   DWORD *name;
  73   IMAGE_EXPORT_DIRECTORY *pe_exports;
  74   DWORD rva_start, size;
  75
  76   pe_exports = RtlImageDirectoryEntryToData( hModule, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &size );
  77   rva_start = (char *)pe_exports - (char *)hModule;
  78
  79   Module = get_rva(hModule, pe_exports->Name);
  80   DPRINTF("*******EXPORT DATA*******\n");
  81   DPRINTF("Module name is %s, %ld functions, %ld names\n",
  82           Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
  83
  84   ordinal = get_rva(hModule, pe_exports->AddressOfNameOrdinals);
  85   functions = function = get_rva(hModule, pe_exports->AddressOfFunctions);
  86   name = get_rva(hModule, pe_exports->AddressOfNames);
  87
  88   DPRINTF(" Ord    RVA     Addr   Name\n" );
  89   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
  90   {
  91       if (!*function) continue;  /* No such function */
  92       DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, get_rva(hModule, *function) );
  93       /* Check if we have a name for it */
  94       for (j = 0; j < pe_exports->NumberOfNames; j++)
  95           if (ordinal[j] == i)
  96           {
  97               DPRINTF( "  %s", (char*)get_rva(hModule, name[j]) );
  98               break;
  99           }
 100       if ((*function >= rva_start) && (*function <= rva_start + size))
 101           DPRINTF(" (forwarded -> %s)", (char *)get_rva(hModule, *function));
 102       DPRINTF("\n");
 103   }
 104 }
 105
 106 /* Look up the specified function or ordinal in the export list:
 107  * If it is a string:
 108  *      - look up the name in the name list.
 109  *      - look up the ordinal with that index.
 110  *      - use the ordinal as offset into the functionlist
 111  * If it is an ordinal:
 112  *      - use ordinal-pe_export->Base as offset into the function list
 113  */
 114 static FARPROC PE_FindExportedFunction(
 115         WINE_MODREF *wm,        /* [in] WINE modreference */
 116         LPCSTR funcName,        /* [in] function name */
 117         int hint,
 118         BOOL snoop )
 119 {
 120         WORD                            * ordinals;
 121         DWORD                           * function;
 122         int                             i, ordinal;
 123         DWORD                           rva_start, addr;
 124         char                            * forward;
 125         DWORD *name;
 126         char *ename = NULL;
 127         FARPROC proc;
 128         IMAGE_EXPORT_DIRECTORY *exports;
 129         DWORD exp_size;
 130
 131         if (!(exports = RtlImageDirectoryEntryToData( wm->module, TRUE,
 132                                                       IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
 133             return NULL;
 134
 135         if (HIWORD(funcName)) TRACE("(%s)\n",funcName);
 136         else TRACE("(%d)\n",LOWORD(funcName));
 137
 138         ordinals= get_rva(wm->module, exports->AddressOfNameOrdinals);
 139         function= get_rva(wm->module, exports->AddressOfFunctions);
 140         name    = get_rva(wm->module, exports->AddressOfNames);
 141         forward = NULL;
 142         rva_start = (char *)exports - (char *)wm->module;
 143
 144         if (HIWORD(funcName))
 145         {
 146             int min = 0, max = exports->NumberOfNames - 1;
 147
 148             /* first check the hint */
 149             if (hint >= 0 && hint <= max)
 150             {
 151                 ename = get_rva(wm->module, name[hint]);
 152                 if (!strcmp( ename, funcName ))
 153                 {
 154                     ordinal = ordinals[hint];
 155                     goto found;
 156                 }
 157             }
 158
 159             /* then do a binary search */
 160             while (min <= max)
 161             {
 162                 int res, pos = (min + max) / 2;
 163                 ename = get_rva(wm->module, name[pos]);
 164                 if (!(res = strcmp( ename, funcName )))
 165                 {
 166                     ordinal = ordinals[pos];
 167                     goto found;
 168                 }
 169                 if (res > 0) max = pos - 1;
 170                 else min = pos + 1;
 171             }
 172             return NULL;
 173         }
 174         else  /* find by ordinal */
 175         {
 176             ordinal = LOWORD(funcName) - exports->Base;
 177             if (snoop && name)  /* need to find a name for it */
 178             {
 179                 for (i = 0; i < exports->NumberOfNames; i++)
 180                     if (ordinals[i] == ordinal)
 181                     {
 182                         ename = get_rva(wm->module, name[i]);
 183                         break;
 184                     }
 185             }
 186         }
 187
 188  found:
 189         if (ordinal >= exports->NumberOfFunctions)
 190         {
 191             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 192             return NULL;
 193         }
 194         addr = function[ordinal];
 195         if (!addr) return NULL;
 196
 197         proc = get_rva(wm->module, addr);
 198         if (((char *)proc < (char *)exports) || ((char *)proc >= (char *)exports + exp_size))
 199         {
 200             if (snoop)
 201             {
 202                 if (!ename) ename = "@";
 203                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 204             }
 205             return proc;
 206         }
 207         else  /* forward entry point */
 208         {
 209                 WINE_MODREF *wm_fw;
 210                 char *forward = (char *)proc;
 211                 char module[256];
 212                 char *end = strchr(forward, '.');
 213
 214                 if (!end) return NULL;
 215                 if (end - forward >= sizeof(module)) return NULL;
 216                 memcpy( module, forward, end - forward );
 217                 module[end-forward] = 0;
 218                 if (!(wm_fw = MODULE_FindModule( module )))
 219                 {
 220                     ERR("module not found for forward '%s' used by '%s'\n", forward, wm->modname );
 221                     return NULL;
 222                 }
 223                 if (!(proc = MODULE_GetProcAddress( wm_fw->module, end + 1, -1, snoop )))
 224                     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 );
 225                 return proc;
 226         }
 227 }
 228
 229 /****************************************************************
 230  *      PE_fixup_imports
 231  */
 232 DWORD PE_fixup_imports( WINE_MODREF *wm )
 233 {
 234     int i,characteristics_detection=1;
 235     IMAGE_IMPORT_DESCRIPTOR *imports, *pe_imp;
 236     DWORD size;
 237
 238     imports = RtlImageDirectoryEntryToData( wm->module, TRUE, IMAGE_DIRECTORY_ENTRY_IMPORT, &size );
 239
 240     /* first, count the number of imported non-internal modules */
 241     pe_imp = imports;
 242     if (!pe_imp) return 0;
 243
 244     /* OK, now dump the import list */
 245     TRACE("Dumping imports list\n");
 246
 247     /* We assume that we have at least one import with !0 characteristics and
 248      * detect broken imports with all characteristics 0 (notably Borland) and
 249      * switch the detection off for them.
 250      */
 251     for (i = 0; pe_imp->Name ; pe_imp++) {
 252         if (!i && !pe_imp->u.Characteristics)
 253                 characteristics_detection = 0;
 254         if (characteristics_detection && !pe_imp->u.Characteristics)
 255                 break;
 256         i++;
 257     }
 258     if (!i) return 0;  /* no imports */
 259
 260     /* Allocate module dependency list */
 261     wm->nDeps = i;
 262     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 263
 264     /* load the imported modules. They are automatically
 265      * added to the modref list of the process.
 266      */
 267
 268     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 269         WINE_MODREF             *wmImp;
 270         IMAGE_IMPORT_BY_NAME    *pe_name;
 271         PIMAGE_THUNK_DATA       import_list,thunk_list;
 272         char                    *name = get_rva(wm->module, pe_imp->Name);
 273
 274         if (characteristics_detection && !pe_imp->u.Characteristics)
 275                 break;
 276
 277         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 278         if (!wmImp) {
 279             ERR_(module)("Module (file) %s (which is needed by %s) not found\n", name, wm->filename);
 280             return 1;
 281         }
 282         wm->deps[i++] = wmImp;
 283
 284         /* FIXME: forwarder entries ... */
 285
 286         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 287             TRACE("Microsoft style imports used\n");
 288             import_list = get_rva(wm->module, (DWORD)pe_imp->u.OriginalFirstThunk);
 289             thunk_list = get_rva(wm->module, (DWORD)pe_imp->FirstThunk);
 290
 291             while (import_list->u1.Ordinal) {
 292                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 293                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 294
 295                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 296                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 297                         wmImp->module, (LPCSTR)ordinal, -1, TRUE
 298                     );
 299                     if (!thunk_list->u1.Function) {
 300                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 301                                 name, ordinal, wm->filename );
 302                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 303                     }
 304                 } else {                /* import by name */
 305                     pe_name = get_rva(wm->module, (DWORD)import_list->u1.AddressOfData);
 306                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 307                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 308                         wmImp->module, pe_name->Name, pe_name->Hint, TRUE
 309                     );
 310                     if (!thunk_list->u1.Function) {
 311                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 312                                 name,pe_name->Hint,pe_name->Name,wm->filename);
 313                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 314                     }
 315                 }
 316                 import_list++;
 317                 thunk_list++;
 318             }
 319         } else {        /* Borland style */
 320             TRACE("Borland style imports used\n");
 321             thunk_list = get_rva(wm->module, (DWORD)pe_imp->FirstThunk);
 322             while (thunk_list->u1.Ordinal) {
 323                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 324                     /* not sure about this branch, but it seems to work */
 325                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 326
 327                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 328                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 329                         wmImp->module, (LPCSTR) ordinal, -1, TRUE
 330                     );
 331                     if (!thunk_list->u1.Function) {
 332                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 333                                 name,ordinal, wm->filename);
 334                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 335                     }
 336                 } else {
 337                     pe_name=get_rva(wm->module, (DWORD)thunk_list->u1.AddressOfData);
 338                     TRACE("--- %s %s.%d\n",
 339                                   pe_name->Name,name,pe_name->Hint);
 340                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 341                         wmImp->module, pe_name->Name, pe_name->Hint, TRUE
 342                     );
 343                     if (!thunk_list->u1.Function) {
 344                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 345                                 name, pe_name->Hint, pe_name->Name, wm->filename);
 346                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 347                     }
 348                 }
 349                 thunk_list++;
 350             }
 351         }
 352     }
 353     return 0;
 354 }
 355
 356 /**********************************************************************
 357  *                      PE_LoadImage
 358  * Load one PE format DLL/EXE into memory
 359  *
 360  * Unluckily we can't just mmap the sections where we want them, for
 361  * (at least) Linux does only support offsets which are page-aligned.
 362  *
 363  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 364  * want to access them. (HMODULE points to the start of it)
 365  */
 366 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 367 {
 368     IMAGE_NT_HEADERS *nt;
 369     HMODULE hModule;
 370     HANDLE mapping;
 371     void *base;
 372
 373     TRACE_(module)( "loading %s\n", filename );
 374
 375     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 376     if (!mapping) return 0;
 377     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 378     CloseHandle( mapping );
 379     if (!base) return 0;
 380
 381     /* virus check */
 382
 383     hModule = (HMODULE)base;
 384     nt = RtlImageNtHeader( hModule );
 385
 386     if (nt->OptionalHeader.AddressOfEntryPoint)
 387     {
 388         if (!RtlImageRvaToSection( nt, hModule, nt->OptionalHeader.AddressOfEntryPoint ))
 389             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 390                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 391                     nt->OptionalHeader.AddressOfEntryPoint );
 392     }
 393
 394     return hModule;
 395 }
 396
 397 /**********************************************************************
 398  *                 PE_CreateModule
 399  *
 400  * Create WINE_MODREF structure for loaded HMODULE, link it into
 401  * process modref_list, and fixup all imports.
 402  *
 403  * Note: hModule must point to a correctly allocated PE image,
 404  *       with base relocations applied; the 16-bit dummy module
 405  *       associated to hModule must already exist.
 406  *
 407  * Note: This routine must always be called in the context of the
 408  *       process that is to own the module to be created.
 409  *
 410  * Note: Assumes that the process critical section is held
 411  */
 412 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 413                               HANDLE hFile, BOOL builtin )
 414 {
 415     IMAGE_NT_HEADERS *nt;
 416     IMAGE_DATA_DIRECTORY *dir;
 417     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 418     WINE_MODREF *wm;
 419     HMODULE16 hModule16;
 420
 421     /* Retrieve DataDirectory entries */
 422
 423     nt = RtlImageNtHeader(hModule);
 424     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 425     if (dir->Size) pe_export = get_rva(hModule, dir->VirtualAddress);
 426
 427     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 428     if (dir->Size) FIXME("Exception directory ignored\n" );
 429
 430     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 431     if (dir->Size) FIXME("Security directory ignored\n" );
 432
 433     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 434     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 435
 436     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 437     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 438
 439     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 440
 441     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 442     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 443
 444     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 445     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 446
 447     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 448     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 449
 450     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 451     if (dir->Size)
 452     {
 453         TRACE("Delayed import, stub calls LoadLibrary\n" );
 454         /*
 455          * Nothing to do here.
 456          */
 457
 458 #ifdef ImgDelayDescr
 459         /*
 460          * This code is useful to observe what the heck is going on.
 461          */
 462         {
 463             ImgDelayDescr *pe_delay = NULL;
 464             pe_delay = get_rva(hModule, dir->VirtualAddress);
 465             TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 466             TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 467             TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 468             TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 469             TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 470             TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 471             TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 472             TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 473         }
 474 #endif /* ImgDelayDescr */
 475     }
 476
 477     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 478     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 479
 480     dir = nt->OptionalHeader.DataDirectory+15;
 481     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 482
 483     /* Create 16-bit dummy module */
 484
 485     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 486     {
 487         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 488         return NULL;
 489     }
 490
 491     /* Allocate and fill WINE_MODREF */
 492
 493     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 494     {
 495         FreeLibrary16( hModule16 );
 496         return NULL;
 497     }
 498     wm->hDummyMod = hModule16;
 499
 500     if ( builtin )
 501     {
 502         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 503         pModule->flags |= NE_FFLAGS_BUILTIN;
 504         wm->flags |= WINE_MODREF_INTERNAL;
 505     }
 506     else if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 507         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 508
 509     wm->find_export = PE_FindExportedFunction;
 510
 511     /* Dump Exports */
 512
 513     if (pe_export && TRACE_ON(win32))
 514         dump_exports( hModule );
 515
 516     /* Fixup Imports */
 517
 518     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
 519         PE_fixup_imports( wm ))
 520     {
 521         /* remove entry from modref chain */
 522
 523         if ( !wm->prev )
 524             MODULE_modref_list = wm->next;
 525         else
 526             wm->prev->next = wm->next;
 527
 528         if ( wm->next ) wm->next->prev = wm->prev;
 529         wm->next = wm->prev = NULL;
 530
 531         /* FIXME: there are several more dangling references
 532          * left. Including dlls loaded by this dll before the
 533          * failed one. Unrolling is rather difficult with the
 534          * current structure and we can leave them lying
 535          * around with no problems, so we don't care.
 536          * As these might reference our wm, we don't free it.
 537          */
 538          return NULL;
 539     }
 540
 541     if (!builtin && pe_export)
 542         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 543
 544     /* Send DLL load event */
 545     /* we don't need to send a dll event for the main exe */
 546
 547     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 548     {
 549         if (hFile)
 550         {
 551             UINT drive_type = GetDriveTypeA( wm->short_filename );
 552             /* don't keep the file handle open on removable media */
 553             if (drive_type == DRIVE_REMOVABLE || drive_type == DRIVE_CDROM) hFile = 0;
 554         }
 555         SERVER_START_REQ( load_dll )
 556         {
 557             req->handle     = hFile;
 558             req->base       = (void *)hModule;
 559             req->size       = nt->OptionalHeader.SizeOfImage;
 560             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 561             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 562             req->name       = &wm->filename;
 563             wine_server_add_data( req, wm->filename, strlen(wm->filename) );
 564             wine_server_call( req );
 565         }
 566         SERVER_END_REQ;
 567     }
 568
 569     return wm;
 570 }
 571
 572 /******************************************************************************
 573  * The PE Library Loader frontend.
 574  * FIXME: handle the flags.
 575  */
 576 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 577 {
 578         HMODULE         hModule32;
 579         WINE_MODREF     *wm;
 580         HANDLE          hFile;
 581
 582         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 583                              NULL, OPEN_EXISTING, 0, 0 );
 584         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 585
 586         /* Load PE module */
 587         hModule32 = PE_LoadImage( hFile, name, flags );
 588         if (!hModule32)
 589         {
 590                 CloseHandle( hFile );
 591                 return NULL;
 592         }
 593
 594         /* Create 32-bit MODREF */
 595         if ( !(wm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) )
 596         {
 597                 ERR( "can't load %s\n", name );
 598                 CloseHandle( hFile );
 599                 SetLastError( ERROR_OUTOFMEMORY );
 600                 return NULL;
 601         }
 602
 603         CloseHandle( hFile );
 604         return wm;
 605 }
 606
 607
 608 /* Called if the library is loaded or freed.
 609  * NOTE: if a thread attaches a DLL, the current thread will only do
 610  * DLL_PROCESS_ATTACH. Only newly created threads do DLL_THREAD_ATTACH
 611  * (SDK)
 612  */
 613 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 614
 615 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 616 {
 617     BOOL retv = TRUE;
 618     IMAGE_NT_HEADERS *nt = RtlImageNtHeader(module);
 619
 620     /* Is this a library? And has it got an entrypoint? */
 621     if (nt && (nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 622         (nt->OptionalHeader.AddressOfEntryPoint))
 623     {
 624         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 625         if (TRACE_ON(relay))
 626             DPRINTF("%08lx:Call PE DLL (proc=%p,module=%08x,type=%ld,res=%p)\n",
 627                     GetCurrentThreadId(), entry, module, type, lpReserved );
 628         retv = entry( module, type, lpReserved );
 629         if (TRACE_ON(relay))
 630             DPRINTF("%08lx:Ret  PE DLL (proc=%p,module=%08x,type=%ld,res=%p) retval=%x\n",
 631                     GetCurrentThreadId(), entry, module, type, lpReserved, retv );
 632     }
 633
 634     return retv;
 635 }
 636
 637 /************************************************************************
 638  *      PE_InitTls                      (internal)
 639  *
 640  * If included, initialises the thread local storages of modules.
 641  * Pointers in those structs are not RVAs but real pointers which have been
 642  * relocated by do_relocations() already.
 643  */
 644 static LPVOID
 645 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 646         if (    ((DWORD)addr>opt->ImageBase) &&
 647                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 648         )
 649                 /* the address has not been relocated! */
 650                 return (LPVOID)(((DWORD)addr)+delta);
 651         else
 652                 /* the address has been relocated already */
 653                 return addr;
 654 }
 655 void PE_InitTls( void )
 656 {
 657         WINE_MODREF             *wm;
 658         IMAGE_NT_HEADERS        *peh;
 659         DWORD                   size,datasize,dirsize;
 660         LPVOID                  mem;
 661         PIMAGE_TLS_DIRECTORY    pdir;
 662         int delta;
 663
 664         for (wm = MODULE_modref_list;wm;wm=wm->next) {
 665                 peh = RtlImageNtHeader(wm->module);
 666                 pdir = RtlImageDirectoryEntryToData( wm->module, TRUE,
 667                                                      IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
 668                 if (!pdir) continue;
 669                 delta = (char *)wm->module - (char *)peh->OptionalHeader.ImageBase;
 670
 671                 if ( wm->tlsindex == -1 ) {
 672                         LPDWORD xaddr;
 673                         wm->tlsindex = TlsAlloc();
 674                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 675                                         pdir->AddressOfIndex
 676                         );
 677                         *xaddr=wm->tlsindex;
 678                 }
 679                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 680                 size    = datasize + pdir->SizeOfZeroFill;
 681                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 682                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 683                 if (pdir->AddressOfCallBacks) {
 684                      PIMAGE_TLS_CALLBACK *cbs;
 685
 686                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 687                      if (*cbs)
 688                        FIXME("TLS Callbacks aren't going to be called\n");
 689                 }
 690
 691                 TlsSetValue( wm->tlsindex, mem );
 692         }
 693 }