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(module);
  52 WINE_DECLARE_DEBUG_CHANNEL(relay);
  53
  54
  55 /* convert PE image VirtualAddress to Real Address */
  56 inline static void *get_rva( HMODULE module, DWORD va )
  57 {
  58     return (void *)((char *)module + va);
  59 }
  60
  61 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  62
  63 void dump_exports( HMODULE hModule )
  64 {
  65   char          *Module;
  66   int           i, j;
  67   WORD          *ordinal;
  68   DWORD         *function,*functions;
  69   DWORD *name;
  70   IMAGE_EXPORT_DIRECTORY *pe_exports;
  71   DWORD rva_start, size;
  72
  73   pe_exports = RtlImageDirectoryEntryToData( hModule, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &size );
  74   rva_start = (char *)pe_exports - (char *)hModule;
  75
  76   Module = get_rva(hModule, pe_exports->Name);
  77   DPRINTF("*******EXPORT DATA*******\n");
  78   DPRINTF("Module name is %s, %ld functions, %ld names\n",
  79           Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
  80
  81   ordinal = get_rva(hModule, pe_exports->AddressOfNameOrdinals);
  82   functions = function = get_rva(hModule, pe_exports->AddressOfFunctions);
  83   name = get_rva(hModule, pe_exports->AddressOfNames);
  84
  85   DPRINTF(" Ord    RVA     Addr   Name\n" );
  86   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
  87   {
  88       if (!*function) continue;  /* No such function */
  89       DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, get_rva(hModule, *function) );
  90       /* Check if we have a name for it */
  91       for (j = 0; j < pe_exports->NumberOfNames; j++)
  92           if (ordinal[j] == i)
  93           {
  94               DPRINTF( "  %s", (char*)get_rva(hModule, name[j]) );
  95               break;
  96           }
  97       if ((*function >= rva_start) && (*function <= rva_start + size))
  98           DPRINTF(" (forwarded -> %s)", (char *)get_rva(hModule, *function));
  99       DPRINTF("\n");
 100   }
 101 }
 102
 103 /* Look up the specified function or ordinal in the export list:
 104  * If it is a string:
 105  *      - look up the name in the name list.
 106  *      - look up the ordinal with that index.
 107  *      - use the ordinal as offset into the functionlist
 108  * If it is an ordinal:
 109  *      - use ordinal-pe_export->Base as offset into the function list
 110  */
 111 static FARPROC PE_FindExportedFunction(
 112         WINE_MODREF *wm,        /* [in] WINE modreference */
 113         LPCSTR funcName,        /* [in] function name */
 114         int hint,
 115         BOOL snoop )
 116 {
 117         WORD                            * ordinals;
 118         DWORD                           * function;
 119         int                             i, ordinal;
 120         DWORD                           rva_start, addr;
 121         char                            * forward;
 122         DWORD *name;
 123         char *ename = NULL;
 124         FARPROC proc;
 125         IMAGE_EXPORT_DIRECTORY *exports;
 126         DWORD exp_size;
 127
 128         if (!(exports = RtlImageDirectoryEntryToData( wm->module, TRUE,
 129                                                       IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
 130             return NULL;
 131
 132         if (HIWORD(funcName)) TRACE("(%s)\n",funcName);
 133         else TRACE("(%d)\n",LOWORD(funcName));
 134
 135         ordinals= get_rva(wm->module, exports->AddressOfNameOrdinals);
 136         function= get_rva(wm->module, exports->AddressOfFunctions);
 137         name    = get_rva(wm->module, exports->AddressOfNames);
 138         forward = NULL;
 139         rva_start = (char *)exports - (char *)wm->module;
 140
 141         if (HIWORD(funcName))
 142         {
 143             int min = 0, max = exports->NumberOfNames - 1;
 144
 145             /* first check the hint */
 146             if (hint >= 0 && hint <= max)
 147             {
 148                 ename = get_rva(wm->module, name[hint]);
 149                 if (!strcmp( ename, funcName ))
 150                 {
 151                     ordinal = ordinals[hint];
 152                     goto found;
 153                 }
 154             }
 155
 156             /* then do a binary search */
 157             while (min <= max)
 158             {
 159                 int res, pos = (min + max) / 2;
 160                 ename = get_rva(wm->module, name[pos]);
 161                 if (!(res = strcmp( ename, funcName )))
 162                 {
 163                     ordinal = ordinals[pos];
 164                     goto found;
 165                 }
 166                 if (res > 0) max = pos - 1;
 167                 else min = pos + 1;
 168             }
 169             return NULL;
 170         }
 171         else  /* find by ordinal */
 172         {
 173             ordinal = LOWORD(funcName) - exports->Base;
 174             if (snoop && name)  /* need to find a name for it */
 175             {
 176                 for (i = 0; i < exports->NumberOfNames; i++)
 177                     if (ordinals[i] == ordinal)
 178                     {
 179                         ename = get_rva(wm->module, name[i]);
 180                         break;
 181                     }
 182             }
 183         }
 184
 185  found:
 186         if (ordinal >= exports->NumberOfFunctions)
 187         {
 188             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 189             return NULL;
 190         }
 191         addr = function[ordinal];
 192         if (!addr) return NULL;
 193
 194         proc = get_rva(wm->module, addr);
 195         if (((char *)proc < (char *)exports) || ((char *)proc >= (char *)exports + exp_size))
 196         {
 197             if (snoop)
 198             {
 199                 if (!ename) ename = "@";
 200                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 201             }
 202             return proc;
 203         }
 204         else  /* forward entry point */
 205         {
 206                 WINE_MODREF *wm_fw;
 207                 char *forward = (char *)proc;
 208                 char module[256];
 209                 char *end = strchr(forward, '.');
 210
 211                 if (!end) return NULL;
 212                 if (end - forward >= sizeof(module)) return NULL;
 213                 memcpy( module, forward, end - forward );
 214                 module[end-forward] = 0;
 215                 if (!(wm_fw = MODULE_FindModule( module )))
 216                 {
 217                     ERR("module not found for forward '%s' used by '%s'\n", forward, wm->modname );
 218                     return NULL;
 219                 }
 220                 if (!(proc = MODULE_GetProcAddress( wm_fw->module, end + 1, -1, snoop )))
 221                     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 );
 222                 return proc;
 223         }
 224 }
 225
 226 /****************************************************************
 227  *      PE_fixup_imports
 228  */
 229 DWORD PE_fixup_imports( WINE_MODREF *wm )
 230 {
 231     int i,characteristics_detection=1;
 232     IMAGE_IMPORT_DESCRIPTOR *imports, *pe_imp;
 233     DWORD size;
 234
 235     imports = RtlImageDirectoryEntryToData( wm->module, TRUE, IMAGE_DIRECTORY_ENTRY_IMPORT, &size );
 236
 237     /* first, count the number of imported non-internal modules */
 238     pe_imp = imports;
 239     if (!pe_imp) return 0;
 240
 241     /* OK, now dump the import list */
 242     TRACE("Dumping imports list\n");
 243
 244     /* We assume that we have at least one import with !0 characteristics and
 245      * detect broken imports with all characteristics 0 (notably Borland) and
 246      * switch the detection off for them.
 247      */
 248     for (i = 0; pe_imp->Name ; pe_imp++) {
 249         if (!i && !pe_imp->u.Characteristics)
 250                 characteristics_detection = 0;
 251         if (characteristics_detection && !pe_imp->u.Characteristics)
 252                 break;
 253         i++;
 254     }
 255     if (!i) return 0;  /* no imports */
 256
 257     /* Allocate module dependency list */
 258     wm->nDeps = i;
 259     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 260
 261     /* load the imported modules. They are automatically
 262      * added to the modref list of the process.
 263      */
 264
 265     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 266         WINE_MODREF             *wmImp;
 267         IMAGE_IMPORT_BY_NAME    *pe_name;
 268         PIMAGE_THUNK_DATA       import_list,thunk_list;
 269         char                    *name = get_rva(wm->module, pe_imp->Name);
 270
 271         if (characteristics_detection && !pe_imp->u.Characteristics)
 272                 break;
 273
 274         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 275         if (!wmImp) {
 276             ERR_(module)("Module (file) %s (which is needed by %s) not found\n", name, wm->filename);
 277             return 1;
 278         }
 279         wm->deps[i++] = wmImp;
 280
 281         /* FIXME: forwarder entries ... */
 282
 283         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 284             TRACE("Microsoft style imports used\n");
 285             import_list = get_rva(wm->module, (DWORD)pe_imp->u.OriginalFirstThunk);
 286             thunk_list = get_rva(wm->module, (DWORD)pe_imp->FirstThunk);
 287
 288             while (import_list->u1.Ordinal) {
 289                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 290                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 291
 292                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 293                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 294                         wmImp->module, (LPCSTR)ordinal, -1, TRUE
 295                     );
 296                     if (!thunk_list->u1.Function) {
 297                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 298                                 name, ordinal, wm->filename );
 299                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 300                     }
 301                 } else {                /* import by name */
 302                     pe_name = get_rva(wm->module, (DWORD)import_list->u1.AddressOfData);
 303                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 304                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 305                         wmImp->module, pe_name->Name, pe_name->Hint, TRUE
 306                     );
 307                     if (!thunk_list->u1.Function) {
 308                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 309                                 name,pe_name->Hint,pe_name->Name,wm->filename);
 310                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 311                     }
 312                 }
 313                 import_list++;
 314                 thunk_list++;
 315             }
 316         } else {        /* Borland style */
 317             TRACE("Borland style imports used\n");
 318             thunk_list = get_rva(wm->module, (DWORD)pe_imp->FirstThunk);
 319             while (thunk_list->u1.Ordinal) {
 320                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 321                     /* not sure about this branch, but it seems to work */
 322                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 323
 324                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 325                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 326                         wmImp->module, (LPCSTR) ordinal, -1, TRUE
 327                     );
 328                     if (!thunk_list->u1.Function) {
 329                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 330                                 name,ordinal, wm->filename);
 331                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 332                     }
 333                 } else {
 334                     pe_name=get_rva(wm->module, (DWORD)thunk_list->u1.AddressOfData);
 335                     TRACE("--- %s %s.%d\n",
 336                                   pe_name->Name,name,pe_name->Hint);
 337                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 338                         wmImp->module, pe_name->Name, pe_name->Hint, TRUE
 339                     );
 340                     if (!thunk_list->u1.Function) {
 341                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 342                                 name, pe_name->Hint, pe_name->Name, wm->filename);
 343                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 344                     }
 345                 }
 346                 thunk_list++;
 347             }
 348         }
 349     }
 350     return 0;
 351 }
 352
 353 /**********************************************************************
 354  *                      PE_LoadImage
 355  * Load one PE format DLL/EXE into memory
 356  *
 357  * Unluckily we can't just mmap the sections where we want them, for
 358  * (at least) Linux does only support offsets which are page-aligned.
 359  *
 360  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 361  * want to access them. (HMODULE points to the start of it)
 362  */
 363 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 364 {
 365     IMAGE_NT_HEADERS *nt;
 366     HMODULE hModule;
 367     HANDLE mapping;
 368     void *base;
 369
 370     TRACE_(module)( "loading %s\n", filename );
 371
 372     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 373     if (!mapping) return 0;
 374     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 375     CloseHandle( mapping );
 376     if (!base) return 0;
 377
 378     /* virus check */
 379
 380     hModule = (HMODULE)base;
 381     nt = RtlImageNtHeader( hModule );
 382
 383     if (nt->OptionalHeader.AddressOfEntryPoint)
 384     {
 385         if (!RtlImageRvaToSection( nt, hModule, nt->OptionalHeader.AddressOfEntryPoint ))
 386             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 387                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 388                     nt->OptionalHeader.AddressOfEntryPoint );
 389     }
 390
 391     return hModule;
 392 }
 393
 394 /**********************************************************************
 395  *                 PE_CreateModule
 396  *
 397  * Create WINE_MODREF structure for loaded HMODULE, link it into
 398  * process modref_list, and fixup all imports.
 399  *
 400  * Note: hModule must point to a correctly allocated PE image,
 401  *       with base relocations applied; the 16-bit dummy module
 402  *       associated to hModule must already exist.
 403  *
 404  * Note: This routine must always be called in the context of the
 405  *       process that is to own the module to be created.
 406  *
 407  * Note: Assumes that the process critical section is held
 408  */
 409 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 410                               HANDLE hFile, BOOL builtin )
 411 {
 412     IMAGE_NT_HEADERS *nt;
 413     IMAGE_DATA_DIRECTORY *dir;
 414     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 415     WINE_MODREF *wm;
 416     HMODULE16 hModule16;
 417
 418     /* Retrieve DataDirectory entries */
 419
 420     nt = RtlImageNtHeader(hModule);
 421     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 422     if (dir->Size) pe_export = get_rva(hModule, dir->VirtualAddress);
 423
 424     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 425     if (dir->Size) FIXME("Exception directory ignored\n" );
 426
 427     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 428     if (dir->Size) FIXME("Security directory ignored\n" );
 429
 430     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 431     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 432
 433     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 434     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 435
 436     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 437
 438     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 439     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 440
 441     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 442     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 443
 444     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 445     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 446
 447     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 448     if (dir->Size)
 449     {
 450         TRACE("Delayed import, stub calls LoadLibrary\n" );
 451         /*
 452          * Nothing to do here.
 453          */
 454
 455 #ifdef ImgDelayDescr
 456         /*
 457          * This code is useful to observe what the heck is going on.
 458          */
 459         {
 460             ImgDelayDescr *pe_delay = NULL;
 461             pe_delay = get_rva(hModule, dir->VirtualAddress);
 462             TRACE("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 463             TRACE("pe_delay->szName = %s\n", pe_delay->szName);
 464             TRACE("pe_delay->phmod = %08x\n", pe_delay->phmod);
 465             TRACE("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 466             TRACE("pe_delay->pINT = %08x\n", pe_delay->pINT);
 467             TRACE("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 468             TRACE("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 469             TRACE("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 470         }
 471 #endif /* ImgDelayDescr */
 472     }
 473
 474     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 475     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 476
 477     dir = nt->OptionalHeader.DataDirectory+15;
 478     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 479
 480     /* Create 16-bit dummy module */
 481
 482     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 483     {
 484         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 485         return NULL;
 486     }
 487
 488     /* Allocate and fill WINE_MODREF */
 489
 490     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 491     {
 492         FreeLibrary16( hModule16 );
 493         return NULL;
 494     }
 495     wm->hDummyMod = hModule16;
 496
 497     if ( builtin )
 498     {
 499         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 500         pModule->flags |= NE_FFLAGS_BUILTIN;
 501         wm->flags |= WINE_MODREF_INTERNAL;
 502     }
 503     else if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 504         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 505
 506     wm->find_export = PE_FindExportedFunction;
 507
 508     /* Dump Exports */
 509
 510     if (pe_export && TRACE_ON(win32))
 511         dump_exports( hModule );
 512
 513     /* Fixup Imports */
 514
 515     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
 516         PE_fixup_imports( wm ))
 517     {
 518         /* remove entry from modref chain */
 519
 520         if ( !wm->prev )
 521             MODULE_modref_list = wm->next;
 522         else
 523             wm->prev->next = wm->next;
 524
 525         if ( wm->next ) wm->next->prev = wm->prev;
 526         wm->next = wm->prev = NULL;
 527
 528         /* FIXME: there are several more dangling references
 529          * left. Including dlls loaded by this dll before the
 530          * failed one. Unrolling is rather difficult with the
 531          * current structure and we can leave them lying
 532          * around with no problems, so we don't care.
 533          * As these might reference our wm, we don't free it.
 534          */
 535          return NULL;
 536     }
 537
 538     if (!builtin && pe_export)
 539         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 540
 541     /* Send DLL load event */
 542     /* we don't need to send a dll event for the main exe */
 543
 544     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 545     {
 546         if (hFile)
 547         {
 548             UINT drive_type = GetDriveTypeA( wm->short_filename );
 549             /* don't keep the file handle open on removable media */
 550             if (drive_type == DRIVE_REMOVABLE || drive_type == DRIVE_CDROM) hFile = 0;
 551         }
 552         SERVER_START_REQ( load_dll )
 553         {
 554             req->handle     = hFile;
 555             req->base       = (void *)hModule;
 556             req->size       = nt->OptionalHeader.SizeOfImage;
 557             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 558             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 559             req->name       = &wm->filename;
 560             wine_server_add_data( req, wm->filename, strlen(wm->filename) );
 561             wine_server_call( req );
 562         }
 563         SERVER_END_REQ;
 564     }
 565
 566     return wm;
 567 }
 568
 569 /******************************************************************************
 570  * The PE Library Loader frontend.
 571  * FIXME: handle the flags.
 572  */
 573 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 574 {
 575         HMODULE         hModule32;
 576         WINE_MODREF     *wm;
 577         HANDLE          hFile;
 578
 579         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 580                              NULL, OPEN_EXISTING, 0, 0 );
 581         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 582
 583         /* Load PE module */
 584         hModule32 = PE_LoadImage( hFile, name, flags );
 585         if (!hModule32)
 586         {
 587                 CloseHandle( hFile );
 588                 return NULL;
 589         }
 590
 591         /* Create 32-bit MODREF */
 592         if ( !(wm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) )
 593         {
 594                 ERR( "can't load %s\n", name );
 595                 CloseHandle( hFile );
 596                 SetLastError( ERROR_OUTOFMEMORY );
 597                 return NULL;
 598         }
 599
 600         CloseHandle( hFile );
 601         return wm;
 602 }
 603
 604
 605 /* Called if the library is loaded or freed.
 606  * NOTE: if a thread attaches a DLL, the current thread will only do
 607  * DLL_PROCESS_ATTACH. Only newly created threads do DLL_THREAD_ATTACH
 608  * (SDK)
 609  */
 610 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 611
 612 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 613 {
 614     BOOL retv = TRUE;
 615     IMAGE_NT_HEADERS *nt = RtlImageNtHeader(module);
 616
 617     /* Is this a library? And has it got an entrypoint? */
 618     if (nt && (nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 619         (nt->OptionalHeader.AddressOfEntryPoint))
 620     {
 621         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 622         if (TRACE_ON(relay))
 623             DPRINTF("%08lx:Call PE DLL (proc=%p,module=%p,type=%ld,res=%p)\n",
 624                     GetCurrentThreadId(), entry, module, type, lpReserved );
 625         retv = entry( module, type, lpReserved );
 626         if (TRACE_ON(relay))
 627             DPRINTF("%08lx:Ret  PE DLL (proc=%p,module=%p,type=%ld,res=%p) retval=%x\n",
 628                     GetCurrentThreadId(), entry, module, type, lpReserved, retv );
 629     }
 630
 631     return retv;
 632 }
 633
 634 /************************************************************************
 635  *      PE_InitTls                      (internal)
 636  *
 637  * If included, initialises the thread local storages of modules.
 638  * Pointers in those structs are not RVAs but real pointers which have been
 639  * relocated by do_relocations() already.
 640  */
 641 static LPVOID
 642 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 643         if (    ((DWORD)addr>opt->ImageBase) &&
 644                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 645         )
 646                 /* the address has not been relocated! */
 647                 return (LPVOID)(((DWORD)addr)+delta);
 648         else
 649                 /* the address has been relocated already */
 650                 return addr;
 651 }
 652 void PE_InitTls( void )
 653 {
 654         WINE_MODREF             *wm;
 655         IMAGE_NT_HEADERS        *peh;
 656         DWORD                   size,datasize,dirsize;
 657         LPVOID                  mem;
 658         PIMAGE_TLS_DIRECTORY    pdir;
 659         int delta;
 660
 661         for (wm = MODULE_modref_list;wm;wm=wm->next) {
 662                 peh = RtlImageNtHeader(wm->module);
 663                 pdir = RtlImageDirectoryEntryToData( wm->module, TRUE,
 664                                                      IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
 665                 if (!pdir) continue;
 666                 delta = (char *)wm->module - (char *)peh->OptionalHeader.ImageBase;
 667
 668                 if ( wm->tlsindex == -1 ) {
 669                         LPDWORD xaddr;
 670                         wm->tlsindex = TlsAlloc();
 671                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 672                                         pdir->AddressOfIndex
 673                         );
 674                         *xaddr=wm->tlsindex;
 675                 }
 676                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 677                 size    = datasize + pdir->SizeOfZeroFill;
 678                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 679                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 680                 if (pdir->AddressOfCallBacks) {
 681                      PIMAGE_TLS_CALLBACK *cbs;
 682
 683                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 684                      if (*cbs)
 685                        FIXME("TLS Callbacks aren't going to be called\n");
 686                 }
 687
 688                 TlsSetValue( wm->tlsindex, mem );
 689         }
 690 }