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 #include "ntdll_misc.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(win32);
  52 WINE_DECLARE_DEBUG_CHANNEL(module);
  53 WINE_DECLARE_DEBUG_CHANNEL(relay);
  54
  55
  56 /* convert PE image VirtualAddress to Real Address */
  57 inline static void *get_rva( HMODULE module, DWORD va )
  58 {
  59     return (void *)((char *)module + va);
  60 }
  61
  62 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  63
  64 void dump_exports( HMODULE hModule )
  65 {
  66   char          *Module;
  67   int           i, j;
  68   WORD          *ordinal;
  69   DWORD         *function,*functions;
  70   DWORD *name;
  71   IMAGE_EXPORT_DIRECTORY *pe_exports;
  72   DWORD rva_start, size;
  73
  74   pe_exports = RtlImageDirectoryEntryToData( hModule, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &size );
  75   rva_start = (char *)pe_exports - (char *)hModule;
  76
  77   Module = get_rva(hModule, pe_exports->Name);
  78   DPRINTF("*******EXPORT DATA*******\n");
  79   DPRINTF("Module name is %s, %ld functions, %ld names\n",
  80           Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
  81
  82   ordinal = get_rva(hModule, pe_exports->AddressOfNameOrdinals);
  83   functions = function = get_rva(hModule, pe_exports->AddressOfFunctions);
  84   name = get_rva(hModule, pe_exports->AddressOfNames);
  85
  86   DPRINTF(" Ord    RVA     Addr   Name\n" );
  87   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
  88   {
  89       if (!*function) continue;  /* No such function */
  90       DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, get_rva(hModule, *function) );
  91       /* Check if we have a name for it */
  92       for (j = 0; j < pe_exports->NumberOfNames; j++)
  93           if (ordinal[j] == i)
  94           {
  95               DPRINTF( "  %s", (char*)get_rva(hModule, name[j]) );
  96               break;
  97           }
  98       if ((*function >= rva_start) && (*function <= rva_start + size))
  99           DPRINTF(" (forwarded -> %s)", (char *)get_rva(hModule, *function));
 100       DPRINTF("\n");
 101   }
 102 }
 103
 104 /* Look up the specified function or ordinal in the export list:
 105  * If it is a string:
 106  *      - look up the name in the name list.
 107  *      - look up the ordinal with that index.
 108  *      - use the ordinal as offset into the functionlist
 109  * If it is an ordinal:
 110  *      - use ordinal-pe_export->Base as offset into the function list
 111  */
 112 static FARPROC PE_FindExportedFunction(
 113         WINE_MODREF *wm,        /* [in] WINE modreference */
 114         LPCSTR funcName,        /* [in] function name */
 115         int hint,
 116         BOOL snoop )
 117 {
 118         WORD                            * ordinals;
 119         DWORD                           * function;
 120         int                             i, ordinal;
 121         DWORD                           rva_start, addr;
 122         char                            * forward;
 123         DWORD *name;
 124         char *ename = NULL;
 125         FARPROC proc;
 126         IMAGE_EXPORT_DIRECTORY *exports;
 127         DWORD exp_size;
 128
 129         if (!(exports = RtlImageDirectoryEntryToData( wm->module, TRUE,
 130                                                       IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
 131             return NULL;
 132
 133         if (HIWORD(funcName)) TRACE("(%s)\n",funcName);
 134         else TRACE("(%d)\n",LOWORD(funcName));
 135
 136         ordinals= get_rva(wm->module, exports->AddressOfNameOrdinals);
 137         function= get_rva(wm->module, exports->AddressOfFunctions);
 138         name    = get_rva(wm->module, exports->AddressOfNames);
 139         forward = NULL;
 140         rva_start = (char *)exports - (char *)wm->module;
 141
 142         if (HIWORD(funcName))
 143         {
 144             int min = 0, max = exports->NumberOfNames - 1;
 145
 146             /* first check the hint */
 147             if (hint >= 0 && hint <= max)
 148             {
 149                 ename = get_rva(wm->module, name[hint]);
 150                 if (!strcmp( ename, funcName ))
 151                 {
 152                     ordinal = ordinals[hint];
 153                     goto found;
 154                 }
 155             }
 156
 157             /* then do a binary search */
 158             while (min <= max)
 159             {
 160                 int res, pos = (min + max) / 2;
 161                 ename = get_rva(wm->module, name[pos]);
 162                 if (!(res = strcmp( ename, funcName )))
 163                 {
 164                     ordinal = ordinals[pos];
 165                     goto found;
 166                 }
 167                 if (res > 0) max = pos - 1;
 168                 else min = pos + 1;
 169             }
 170             return NULL;
 171         }
 172         else  /* find by ordinal */
 173         {
 174             ordinal = LOWORD(funcName) - exports->Base;
 175             if (snoop && name)  /* need to find a name for it */
 176             {
 177                 for (i = 0; i < exports->NumberOfNames; i++)
 178                     if (ordinals[i] == ordinal)
 179                     {
 180                         ename = get_rva(wm->module, name[i]);
 181                         break;
 182                     }
 183             }
 184         }
 185
 186  found:
 187         if (ordinal >= exports->NumberOfFunctions)
 188         {
 189             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 190             return NULL;
 191         }
 192         addr = function[ordinal];
 193         if (!addr) return NULL;
 194
 195         proc = get_rva(wm->module, addr);
 196         if (((char *)proc < (char *)exports) || ((char *)proc >= (char *)exports + exp_size))
 197         {
 198             if (snoop)
 199             {
 200                 if (!ename) ename = "@";
 201                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 202             }
 203             return proc;
 204         }
 205         else  /* forward entry point */
 206         {
 207                 WINE_MODREF *wm_fw;
 208                 char *forward = (char *)proc;
 209                 char module[256];
 210                 char *end = strchr(forward, '.');
 211
 212                 if (!end) return NULL;
 213                 if (end - forward >= sizeof(module)) return NULL;
 214                 memcpy( module, forward, end - forward );
 215                 module[end-forward] = 0;
 216                 if (!(wm_fw = MODULE_FindModule( module )))
 217                 {
 218                     ERR("module not found for forward '%s' used by '%s'\n", forward, wm->modname );
 219                     return NULL;
 220                 }
 221                 if (!(proc = MODULE_GetProcAddress( wm_fw->module, end + 1, -1, snoop )))
 222                     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 );
 223                 return proc;
 224         }
 225 }
 226
 227 /****************************************************************
 228  *      PE_fixup_imports
 229  */
 230 DWORD PE_fixup_imports( WINE_MODREF *wm )
 231 {
 232     int i,characteristics_detection=1;
 233     IMAGE_IMPORT_DESCRIPTOR *imports, *pe_imp;
 234     DWORD size;
 235
 236     imports = RtlImageDirectoryEntryToData( wm->module, TRUE, IMAGE_DIRECTORY_ENTRY_IMPORT, &size );
 237
 238     /* first, count the number of imported non-internal modules */
 239     pe_imp = imports;
 240     if (!pe_imp) return 0;
 241
 242     /* OK, now dump the import list */
 243     TRACE("Dumping imports list\n");
 244
 245     /* We assume that we have at least one import with !0 characteristics and
 246      * detect broken imports with all characteristics 0 (notably Borland) and
 247      * switch the detection off for them.
 248      */
 249     for (i = 0; pe_imp->Name ; pe_imp++) {
 250         if (!i && !pe_imp->u.Characteristics)
 251                 characteristics_detection = 0;
 252         if (characteristics_detection && !pe_imp->u.Characteristics)
 253                 break;
 254         i++;
 255     }
 256     if (!i) return 0;  /* no imports */
 257
 258     /* Allocate module dependency list */
 259     wm->nDeps = i;
 260     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 261
 262     /* load the imported modules. They are automatically
 263      * added to the modref list of the process.
 264      */
 265
 266     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 267         WINE_MODREF             *wmImp;
 268         IMAGE_IMPORT_BY_NAME    *pe_name;
 269         PIMAGE_THUNK_DATA       import_list,thunk_list;
 270         char                    *name = get_rva(wm->module, pe_imp->Name);
 271
 272         if (characteristics_detection && !pe_imp->u.Characteristics)
 273                 break;
 274
 275         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 276         if (!wmImp) {
 277             if(GetLastError() == ERROR_FILE_NOT_FOUND)
 278                 ERR_(module)("Module (file) %s (which is needed by %s) not found\n", name, wm->filename);
 279             else
 280                 ERR_(module)("Loading module (file) %s (which is needed by %s) failed (error %ld).\n",
 281                         name, wm->filename, GetLastError());
 282             return 1;
 283         }
 284         wm->deps[i++] = wmImp;
 285
 286         /* FIXME: forwarder entries ... */
 287
 288         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 289             TRACE("Microsoft style imports used\n");
 290             import_list = get_rva(wm->module, (DWORD)pe_imp->u.OriginalFirstThunk);
 291             thunk_list = get_rva(wm->module, (DWORD)pe_imp->FirstThunk);
 292
 293             while (import_list->u1.Ordinal) {
 294                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 295                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 296
 297                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 298                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 299                         wmImp->module, (LPCSTR)ordinal, -1, TRUE
 300                     );
 301                     if (!thunk_list->u1.Function) {
 302                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 303                                 name, ordinal, wm->filename );
 304                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 305                     }
 306                 } else {                /* import by name */
 307                     pe_name = get_rva(wm->module, (DWORD)import_list->u1.AddressOfData);
 308                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 309                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 310                         wmImp->module, pe_name->Name, pe_name->Hint, TRUE
 311                     );
 312                     if (!thunk_list->u1.Function) {
 313                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 314                                 name,pe_name->Hint,pe_name->Name,wm->filename);
 315                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 316                     }
 317                 }
 318                 import_list++;
 319                 thunk_list++;
 320             }
 321         } else {        /* Borland style */
 322             TRACE("Borland style imports used\n");
 323             thunk_list = get_rva(wm->module, (DWORD)pe_imp->FirstThunk);
 324             while (thunk_list->u1.Ordinal) {
 325                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 326                     /* not sure about this branch, but it seems to work */
 327                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 328
 329                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 330                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 331                         wmImp->module, (LPCSTR) ordinal, -1, TRUE
 332                     );
 333                     if (!thunk_list->u1.Function) {
 334                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 335                                 name,ordinal, wm->filename);
 336                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 337                     }
 338                 } else {
 339                     pe_name=get_rva(wm->module, (DWORD)thunk_list->u1.AddressOfData);
 340                     TRACE("--- %s %s.%d\n",
 341                                   pe_name->Name,name,pe_name->Hint);
 342                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 343                         wmImp->module, pe_name->Name, pe_name->Hint, TRUE
 344                     );
 345                     if (!thunk_list->u1.Function) {
 346                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 347                                 name, pe_name->Hint, pe_name->Name, wm->filename);
 348                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 349                     }
 350                 }
 351                 thunk_list++;
 352             }
 353         }
 354     }
 355     return 0;
 356 }
 357
 358 /**********************************************************************
 359  *                      PE_LoadImage
 360  * Load one PE format DLL/EXE into memory
 361  *
 362  * Unluckily we can't just mmap the sections where we want them, for
 363  * (at least) Linux does only support offsets which are page-aligned.
 364  *
 365  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 366  * want to access them. (HMODULE points to the start of it)
 367  */
 368 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 369 {
 370     IMAGE_NT_HEADERS *nt;
 371     HMODULE hModule;
 372     HANDLE mapping;
 373     void *base;
 374
 375     TRACE_(module)( "loading %s\n", filename );
 376
 377     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 378     if (!mapping) return 0;
 379     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 380     CloseHandle( mapping );
 381     if (!base) return 0;
 382
 383     /* virus check */
 384
 385     hModule = (HMODULE)base;
 386     nt = RtlImageNtHeader( hModule );
 387
 388     if (nt->OptionalHeader.AddressOfEntryPoint)
 389     {
 390         if (!RtlImageRvaToSection( nt, hModule, nt->OptionalHeader.AddressOfEntryPoint ))
 391             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 392                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 393                     nt->OptionalHeader.AddressOfEntryPoint );
 394     }
 395
 396     return hModule;
 397 }
 398
 399 /**********************************************************************
 400  *                 PE_CreateModule
 401  *
 402  * Create WINE_MODREF structure for loaded HMODULE, link it into
 403  * process modref_list, and fixup all imports.
 404  *
 405  * Note: hModule must point to a correctly allocated PE image,
 406  *       with base relocations applied; the 16-bit dummy module
 407  *       associated to hModule must already exist.
 408  *
 409  * Note: This routine must always be called in the context of the
 410  *       process that is to own the module to be created.
 411  *
 412  * Note: Assumes that the process critical section is held
 413  */
 414 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 415                               HANDLE hFile, BOOL builtin )
 416 {
 417     IMAGE_NT_HEADERS *nt;
 418     IMAGE_DATA_DIRECTORY *dir;
 419     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 420     WINE_MODREF *wm;
 421     HMODULE16 hModule16;
 422
 423     /* Retrieve DataDirectory entries */
 424
 425     nt = RtlImageNtHeader(hModule);
 426     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 427     if (dir->Size) pe_export = get_rva(hModule, dir->VirtualAddress);
 428
 429     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 430     if (dir->Size) FIXME("Exception directory ignored\n" );
 431
 432     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 433     if (dir->Size) FIXME("Security directory ignored\n" );
 434
 435     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 436     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 437
 438     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 439     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 440
 441     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 442
 443     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 444     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 445
 446     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 447     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 448
 449     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 450     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 451
 452     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 453     if (dir->Size)
 454     {
 455         TRACE("Delayed import, stub calls LoadLibrary\n" );
 456         /*
 457          * Nothing to do here.
 458          */
 459
 460 #ifdef ImgDelayDescr
 461         /*
 462          * This code is useful to observe what the heck is going on.
 463          */
 464         {
 465             ImgDelayDescr *pe_delay = NULL;
 466             pe_delay = get_rva(hModule, dir->VirtualAddress);
 467             TRACE("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 468             TRACE("pe_delay->szName = %s\n", pe_delay->szName);
 469             TRACE("pe_delay->phmod = %08x\n", pe_delay->phmod);
 470             TRACE("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 471             TRACE("pe_delay->pINT = %08x\n", pe_delay->pINT);
 472             TRACE("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 473             TRACE("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 474             TRACE("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 475         }
 476 #endif /* ImgDelayDescr */
 477     }
 478
 479     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 480     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 481
 482     dir = nt->OptionalHeader.DataDirectory+15;
 483     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 484
 485     /* Create 16-bit dummy module */
 486
 487     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 488     {
 489         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 490         return NULL;
 491     }
 492
 493     /* Allocate and fill WINE_MODREF */
 494
 495     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 496     {
 497         FreeLibrary16( hModule16 );
 498         return NULL;
 499     }
 500     wm->hDummyMod = hModule16;
 501
 502     if ( builtin )
 503     {
 504         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 505         pModule->flags |= NE_FFLAGS_BUILTIN;
 506         wm->flags |= WINE_MODREF_INTERNAL;
 507     }
 508     else if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 509         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 510
 511     wm->find_export = PE_FindExportedFunction;
 512
 513     /* Dump Exports */
 514
 515     if (pe_export && TRACE_ON(win32))
 516         dump_exports( hModule );
 517
 518     /* Fixup Imports */
 519
 520     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
 521         PE_fixup_imports( wm ))
 522     {
 523         /* remove entry from modref chain */
 524
 525         if ( !wm->prev )
 526             MODULE_modref_list = wm->next;
 527         else
 528             wm->prev->next = wm->next;
 529
 530         if ( wm->next ) wm->next->prev = wm->prev;
 531         wm->next = wm->prev = NULL;
 532
 533         /* FIXME: there are several more dangling references
 534          * left. Including dlls loaded by this dll before the
 535          * failed one. Unrolling is rather difficult with the
 536          * current structure and we can leave them lying
 537          * around with no problems, so we don't care.
 538          * As these might reference our wm, we don't free it.
 539          */
 540          return NULL;
 541     }
 542
 543     if (!builtin && pe_export)
 544         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 545
 546     /* Send DLL load event */
 547     /* we don't need to send a dll event for the main exe */
 548
 549     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 550     {
 551         if (hFile)
 552         {
 553             UINT drive_type = GetDriveTypeA( wm->short_filename );
 554             /* don't keep the file handle open on removable media */
 555             if (drive_type == DRIVE_REMOVABLE || drive_type == DRIVE_CDROM) hFile = 0;
 556         }
 557         SERVER_START_REQ( load_dll )
 558         {
 559             req->handle     = hFile;
 560             req->base       = (void *)hModule;
 561             req->size       = nt->OptionalHeader.SizeOfImage;
 562             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 563             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 564             req->name       = &wm->filename;
 565             wine_server_add_data( req, wm->filename, strlen(wm->filename) );
 566             wine_server_call( req );
 567         }
 568         SERVER_END_REQ;
 569     }
 570
 571     return wm;
 572 }
 573
 574 /******************************************************************************
 575  * The PE Library Loader frontend.
 576  * FIXME: handle the flags.
 577  */
 578 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 579 {
 580         HMODULE         hModule32;
 581         WINE_MODREF     *wm;
 582         HANDLE          hFile;
 583
 584         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 585                              NULL, OPEN_EXISTING, 0, 0 );
 586         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 587
 588         /* Load PE module */
 589         hModule32 = PE_LoadImage( hFile, name, flags );
 590         if (!hModule32)
 591         {
 592                 CloseHandle( hFile );
 593                 return NULL;
 594         }
 595
 596         /* Create 32-bit MODREF */
 597         if ( !(wm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) )
 598         {
 599                 ERR( "can't load %s\n", name );
 600                 CloseHandle( hFile );
 601                 SetLastError( ERROR_OUTOFMEMORY );
 602                 return NULL;
 603         }
 604
 605         CloseHandle( hFile );
 606         return wm;
 607 }
 608
 609
 610 /* Called if the library is loaded or freed.
 611  * NOTE: if a thread attaches a DLL, the current thread will only do
 612  * DLL_PROCESS_ATTACH. Only newly created threads do DLL_THREAD_ATTACH
 613  * (SDK)
 614  */
 615 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 616
 617 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 618 {
 619     BOOL retv = TRUE;
 620     IMAGE_NT_HEADERS *nt = RtlImageNtHeader(module);
 621
 622     /* Is this a library? And has it got an entrypoint? */
 623     if (nt && (nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 624         (nt->OptionalHeader.AddressOfEntryPoint))
 625     {
 626         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 627         if (TRACE_ON(relay))
 628             DPRINTF("%04lx:Call PE DLL (proc=%p,module=%p,type=%ld,res=%p)\n",
 629                     GetCurrentThreadId(), entry, module, type, lpReserved );
 630         retv = entry( module, type, lpReserved );
 631         if (TRACE_ON(relay))
 632             DPRINTF("%04lx:Ret  PE DLL (proc=%p,module=%p,type=%ld,res=%p) retval=%x\n",
 633                     GetCurrentThreadId(), entry, module, type, lpReserved, retv );
 634     }
 635
 636     return retv;
 637 }
 638
 639 /************************************************************************
 640  *      PE_InitTls                      (internal)
 641  *
 642  * If included, initialises the thread local storages of modules.
 643  * Pointers in those structs are not RVAs but real pointers which have been
 644  * relocated by do_relocations() already.
 645  */
 646 static LPVOID
 647 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 648         if (    ((DWORD)addr>opt->ImageBase) &&
 649                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 650         )
 651                 /* the address has not been relocated! */
 652                 return (LPVOID)(((DWORD)addr)+delta);
 653         else
 654                 /* the address has been relocated already */
 655                 return addr;
 656 }
 657 void PE_InitTls( void )
 658 {
 659         WINE_MODREF             *wm;
 660         IMAGE_NT_HEADERS        *peh;
 661         DWORD                   size,datasize,dirsize;
 662         LPVOID                  mem;
 663         PIMAGE_TLS_DIRECTORY    pdir;
 664         int delta;
 665
 666         for (wm = MODULE_modref_list;wm;wm=wm->next) {
 667                 peh = RtlImageNtHeader(wm->module);
 668                 pdir = RtlImageDirectoryEntryToData( wm->module, TRUE,
 669                                                      IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
 670                 if (!pdir) continue;
 671                 delta = (char *)wm->module - (char *)peh->OptionalHeader.ImageBase;
 672
 673                 if ( wm->tlsindex == -1 ) {
 674                         LPDWORD xaddr;
 675                         wm->tlsindex = TlsAlloc();
 676                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 677                                         pdir->AddressOfIndex
 678                         );
 679                         *xaddr=wm->tlsindex;
 680                 }
 681                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 682                 size    = datasize + pdir->SizeOfZeroFill;
 683                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 684                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 685                 if (pdir->AddressOfCallBacks) {
 686                      PIMAGE_TLS_CALLBACK *cbs;
 687
 688                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 689                      if (*cbs)
 690                        FIXME("TLS Callbacks aren't going to be called\n");
 691                 }
 692
 693                 TlsSetValue( wm->tlsindex, mem );
 694         }
 695 }