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 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
  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   BYTE          **name;
  70   unsigned int load_addr = hModule;
  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 = (char*)RVA(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 = RVA(pe_exports->AddressOfNameOrdinals);
  83   functions = function = RVA(pe_exports->AddressOfFunctions);
  84   name = RVA(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, RVA(*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*)RVA(name[j]) );
  96               break;
  97           }
  98       if ((*function >= rva_start) && (*function <= rva_start + size))
  99           DPRINTF(" (forwarded -> %s)", (char *)RVA(*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         BYTE                            ** name, *ename = NULL;
 121         int                             i, ordinal;
 122         unsigned int                    load_addr = wm->module;
 123         DWORD                           rva_start, addr;
 124         char                            * forward;
 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= RVA(exports->AddressOfNameOrdinals);
 137         function= RVA(exports->AddressOfFunctions);
 138         name    = RVA(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 = RVA(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 = RVA(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 = RVA(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 = RVA(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     unsigned int load_addr      = wm->module;
 233     int                         i,characteristics_detection=1;
 234     IMAGE_IMPORT_DESCRIPTOR *imports, *pe_imp;
 235     DWORD size;
 236
 237     imports = RtlImageDirectoryEntryToData( wm->module, TRUE, IMAGE_DIRECTORY_ENTRY_IMPORT, &size );
 238
 239     /* first, count the number of imported non-internal modules */
 240     pe_imp = imports;
 241     if (!pe_imp) return 0;
 242
 243     /* OK, now dump the import list */
 244     TRACE("Dumping imports list\n");
 245
 246     /* We assume that we have at least one import with !0 characteristics and
 247      * detect broken imports with all characteristics 0 (notably Borland) and
 248      * switch the detection off for them.
 249      */
 250     for (i = 0; pe_imp->Name ; pe_imp++) {
 251         if (!i && !pe_imp->u.Characteristics)
 252                 characteristics_detection = 0;
 253         if (characteristics_detection && !pe_imp->u.Characteristics)
 254                 break;
 255         i++;
 256     }
 257     if (!i) return 0;  /* no imports */
 258
 259     /* Allocate module dependency list */
 260     wm->nDeps = i;
 261     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 262
 263     /* load the imported modules. They are automatically
 264      * added to the modref list of the process.
 265      */
 266
 267     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 268         WINE_MODREF             *wmImp;
 269         IMAGE_IMPORT_BY_NAME    *pe_name;
 270         PIMAGE_THUNK_DATA       import_list,thunk_list;
 271         char                    *name = (char *) RVA(pe_imp->Name);
 272
 273         if (characteristics_detection && !pe_imp->u.Characteristics)
 274                 break;
 275
 276         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 277         if (!wmImp) {
 278             ERR_(module)("Module (file) %s (which is needed by %s) not found\n", name, wm->filename);
 279             return 1;
 280         }
 281         wm->deps[i++] = wmImp;
 282
 283         /* FIXME: forwarder entries ... */
 284
 285         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 286             TRACE("Microsoft style imports used\n");
 287             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 288             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 289
 290             while (import_list->u1.Ordinal) {
 291                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 292                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 293
 294                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 295                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 296                         wmImp->module, (LPCSTR)ordinal, -1, TRUE
 297                     );
 298                     if (!thunk_list->u1.Function) {
 299                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 300                                 name, ordinal, wm->filename );
 301                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 302                     }
 303                 } else {                /* import by name */
 304                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 305                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 306                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 307                         wmImp->module, pe_name->Name, pe_name->Hint, TRUE
 308                     );
 309                     if (!thunk_list->u1.Function) {
 310                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 311                                 name,pe_name->Hint,pe_name->Name,wm->filename);
 312                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 313                     }
 314                 }
 315                 import_list++;
 316                 thunk_list++;
 317             }
 318         } else {        /* Borland style */
 319             TRACE("Borland style imports used\n");
 320             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 321             while (thunk_list->u1.Ordinal) {
 322                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 323                     /* not sure about this branch, but it seems to work */
 324                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 325
 326                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 327                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 328                         wmImp->module, (LPCSTR) ordinal, -1, TRUE
 329                     );
 330                     if (!thunk_list->u1.Function) {
 331                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 332                                 name,ordinal, wm->filename);
 333                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 334                     }
 335                 } else {
 336                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 337                     TRACE("--- %s %s.%d\n",
 338                                   pe_name->Name,name,pe_name->Hint);
 339                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 340                         wmImp->module, pe_name->Name, pe_name->Hint, TRUE
 341                     );
 342                     if (!thunk_list->u1.Function) {
 343                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 344                                 name, pe_name->Hint, pe_name->Name, wm->filename);
 345                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 346                     }
 347                 }
 348                 thunk_list++;
 349             }
 350         }
 351     }
 352     return 0;
 353 }
 354
 355 /**********************************************************************
 356  *                      PE_LoadImage
 357  * Load one PE format DLL/EXE into memory
 358  *
 359  * Unluckily we can't just mmap the sections where we want them, for
 360  * (at least) Linux does only support offsets which are page-aligned.
 361  *
 362  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 363  * want to access them. (HMODULE points to the start of it)
 364  */
 365 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 366 {
 367     IMAGE_NT_HEADERS *nt;
 368     HMODULE hModule;
 369     HANDLE mapping;
 370     void *base;
 371
 372     TRACE_(module)( "loading %s\n", filename );
 373
 374     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 375     if (!mapping) return 0;
 376     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 377     CloseHandle( mapping );
 378     if (!base) return 0;
 379
 380     /* virus check */
 381
 382     hModule = (HMODULE)base;
 383     nt = RtlImageNtHeader( hModule );
 384
 385     if (nt->OptionalHeader.AddressOfEntryPoint)
 386     {
 387         if (!RtlImageRvaToSection( nt, hModule, nt->OptionalHeader.AddressOfEntryPoint ))
 388             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 389                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 390                     nt->OptionalHeader.AddressOfEntryPoint );
 391     }
 392
 393     return hModule;
 394 }
 395
 396 /**********************************************************************
 397  *                 PE_CreateModule
 398  *
 399  * Create WINE_MODREF structure for loaded HMODULE, link it into
 400  * process modref_list, and fixup all imports.
 401  *
 402  * Note: hModule must point to a correctly allocated PE image,
 403  *       with base relocations applied; the 16-bit dummy module
 404  *       associated to hModule must already exist.
 405  *
 406  * Note: This routine must always be called in the context of the
 407  *       process that is to own the module to be created.
 408  *
 409  * Note: Assumes that the process critical section is held
 410  */
 411 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 412                               HANDLE hFile, BOOL builtin )
 413 {
 414     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 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)
 426         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 427
 428     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 429     if (dir->Size) FIXME("Exception directory ignored\n" );
 430
 431     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 432     if (dir->Size) FIXME("Security directory ignored\n" );
 433
 434     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 435     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 436
 437     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 438     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 439
 440     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 441
 442     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 443     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 444
 445     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 446     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 447
 448     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 449     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 450
 451     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 452     if (dir->Size)
 453     {
 454                 TRACE("Delayed import, stub calls LoadLibrary\n" );
 455                 /*
 456                  * Nothing to do here.
 457                  */
 458
 459 #ifdef ImgDelayDescr
 460                 /*
 461                  * This code is useful to observe what the heck is going on.
 462                  */
 463                 {
 464                 ImgDelayDescr *pe_delay = NULL;
 465         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 466         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 467         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 468         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 469         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 470         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 471         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 472         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 473         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 474         }
 475 #endif /* ImgDelayDescr */
 476         }
 477
 478     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 479     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 480
 481     dir = nt->OptionalHeader.DataDirectory+15;
 482     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 483
 484     /* Create 16-bit dummy module */
 485
 486     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 487     {
 488         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 489         return NULL;
 490     }
 491
 492     /* Allocate and fill WINE_MODREF */
 493
 494     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 495     {
 496         FreeLibrary16( hModule16 );
 497         return NULL;
 498     }
 499     wm->hDummyMod = hModule16;
 500
 501     if ( builtin )
 502     {
 503         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 504         pModule->flags |= NE_FFLAGS_BUILTIN;
 505         wm->flags |= WINE_MODREF_INTERNAL;
 506     }
 507     else if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 508         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 509
 510     wm->find_export = PE_FindExportedFunction;
 511
 512     /* Dump Exports */
 513
 514     if (pe_export && TRACE_ON(win32))
 515         dump_exports( hModule );
 516
 517     /* Fixup Imports */
 518
 519     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
 520         PE_fixup_imports( wm ))
 521     {
 522         /* remove entry from modref chain */
 523
 524         if ( !wm->prev )
 525             MODULE_modref_list = wm->next;
 526         else
 527             wm->prev->next = wm->next;
 528
 529         if ( wm->next ) wm->next->prev = wm->prev;
 530         wm->next = wm->prev = NULL;
 531
 532         /* FIXME: there are several more dangling references
 533          * left. Including dlls loaded by this dll before the
 534          * failed one. Unrolling is rather difficult with the
 535          * current structure and we can leave them lying
 536          * around with no problems, so we don't care.
 537          * As these might reference our wm, we don't free it.
 538          */
 539          return NULL;
 540     }
 541
 542     if (!builtin && pe_export)
 543         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 544
 545     /* Send DLL load event */
 546     /* we don't need to send a dll event for the main exe */
 547
 548     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 549     {
 550         if (hFile)
 551         {
 552             UINT drive_type = GetDriveTypeA( wm->short_filename );
 553             /* don't keep the file handle open on removable media */
 554             if (drive_type == DRIVE_REMOVABLE || drive_type == DRIVE_CDROM) hFile = 0;
 555         }
 556         SERVER_START_REQ( load_dll )
 557         {
 558             req->handle     = hFile;
 559             req->base       = (void *)hModule;
 560             req->size       = nt->OptionalHeader.SizeOfImage;
 561             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 562             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 563             req->name       = &wm->filename;
 564             wine_server_add_data( req, wm->filename, strlen(wm->filename) );
 565             wine_server_call( req );
 566         }
 567         SERVER_END_REQ;
 568     }
 569
 570     return wm;
 571 }
 572
 573 /******************************************************************************
 574  * The PE Library Loader frontend.
 575  * FIXME: handle the flags.
 576  */
 577 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 578 {
 579         HMODULE         hModule32;
 580         WINE_MODREF     *wm;
 581         HANDLE          hFile;
 582
 583         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 584                              NULL, OPEN_EXISTING, 0, 0 );
 585         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 586
 587         /* Load PE module */
 588         hModule32 = PE_LoadImage( hFile, name, flags );
 589         if (!hModule32)
 590         {
 591                 CloseHandle( hFile );
 592                 return NULL;
 593         }
 594
 595         /* Create 32-bit MODREF */
 596         if ( !(wm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) )
 597         {
 598                 ERR( "can't load %s\n", name );
 599                 CloseHandle( hFile );
 600                 SetLastError( ERROR_OUTOFMEMORY );
 601                 return NULL;
 602         }
 603
 604         CloseHandle( hFile );
 605         return wm;
 606 }
 607
 608
 609 /* Called if the library is loaded or freed.
 610  * NOTE: if a thread attaches a DLL, the current thread will only do
 611  * DLL_PROCESS_ATTACH. Only newly created threads do DLL_THREAD_ATTACH
 612  * (SDK)
 613  */
 614 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 615
 616 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 617 {
 618     BOOL retv = TRUE;
 619     IMAGE_NT_HEADERS *nt = RtlImageNtHeader(module);
 620
 621     /* Is this a library? And has it got an entrypoint? */
 622     if (nt && (nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 623         (nt->OptionalHeader.AddressOfEntryPoint))
 624     {
 625         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 626         if (TRACE_ON(relay))
 627             DPRINTF("%08lx:Call PE DLL (proc=%p,module=%08x,type=%ld,res=%p)\n",
 628                     GetCurrentThreadId(), entry, module, type, lpReserved );
 629         retv = entry( module, type, lpReserved );
 630         if (TRACE_ON(relay))
 631             DPRINTF("%08lx:Ret  PE DLL (proc=%p,module=%08x,type=%ld,res=%p) retval=%x\n",
 632                     GetCurrentThreadId(), entry, module, type, lpReserved, retv );
 633     }
 634
 635     return retv;
 636 }
 637
 638 /************************************************************************
 639  *      PE_InitTls                      (internal)
 640  *
 641  * If included, initialises the thread local storages of modules.
 642  * Pointers in those structs are not RVAs but real pointers which have been
 643  * relocated by do_relocations() already.
 644  */
 645 static LPVOID
 646 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 647         if (    ((DWORD)addr>opt->ImageBase) &&
 648                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 649         )
 650                 /* the address has not been relocated! */
 651                 return (LPVOID)(((DWORD)addr)+delta);
 652         else
 653                 /* the address has been relocated already */
 654                 return addr;
 655 }
 656 void PE_InitTls( void )
 657 {
 658         WINE_MODREF             *wm;
 659         IMAGE_NT_HEADERS        *peh;
 660         DWORD                   size,datasize,dirsize;
 661         LPVOID                  mem;
 662         PIMAGE_TLS_DIRECTORY    pdir;
 663         int delta;
 664
 665         for (wm = MODULE_modref_list;wm;wm=wm->next) {
 666                 peh = RtlImageNtHeader(wm->module);
 667                 pdir = RtlImageDirectoryEntryToData( wm->module, TRUE,
 668                                                      IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
 669                 if (!pdir) continue;
 670                 delta = (char *)wm->module - (char *)peh->OptionalHeader.ImageBase;
 671
 672                 if ( wm->tlsindex == -1 ) {
 673                         LPDWORD xaddr;
 674                         wm->tlsindex = TlsAlloc();
 675                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 676                                         pdir->AddressOfIndex
 677                         );
 678                         *xaddr=wm->tlsindex;
 679                 }
 680                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 681                 size    = datasize + pdir->SizeOfZeroFill;
 682                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 683                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 684                 if (pdir->AddressOfCallBacks) {
 685                      PIMAGE_TLS_CALLBACK *cbs;
 686
 687                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 688                      if (*cbs)
 689                        FIXME("TLS Callbacks aren't going to be called\n");
 690                 }
 691
 692                 TlsSetValue( wm->tlsindex, mem );
 693         }
 694 }