git.oblomov.eu Git - wine/blob - 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  *
   8  *      ftp.microsoft.com:/pub/developer/MSDN/CD8/PEFILE.ZIP
   9  * make that:
  10  *      ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP
  11  */
  12 /* Notes:
  13  * Before you start changing something in this file be aware of the following:
  14  *
  15  * - There are several functions called recursively. In a very subtle and
  16  *   obscure way. DLLs can reference each other recursively etc.
  17  * - If you want to enhance, speed up or clean up something in here, think
  18  *   twice WHY it is implemented in that strange way. There is usually a reason.
  19  *   Though sometimes it might just be lazyness ;)
  20  * - In PE_MapImage, right before fixup_imports() all external and internal
  21  *   state MUST be correct since this function can be called with the SAME image
  22  *   AGAIN. (Thats recursion for you.) That means MODREF.module and
  23  *   NE_MODULE.module32.
  24  * - Sometimes, we can't use Linux mmap() to mmap() the images directly.
  25  *
  26  *   The problem is, that there is not direct 1:1 mapping from a diskimage and
  27  *   a memoryimage. The headers at the start are mapped linear, but the sections
  28  *   are not. Older x86 pe binaries are 512 byte aligned in file and 4096 byte
  29  *   aligned in memory. Linux likes them 4096 byte aligned in memory (due to
  30  *   x86 pagesize, this cannot be fixed without a rather large kernel rewrite)
  31  *   and 'blocksize' file-aligned (offsets). Since we have 512/1024/2048 (CDROM)
  32  *   and other byte blocksizes, we can't always do this.  We *can* do this for
  33  *   newer pe binaries produced by MSVC 5 and later, since they are also aligned
  34  *   to 4096 byte boundaries on disk.
  35  */
  36
  37 #include "config.h"
  38
  39 #include <errno.h>
  40 #include <assert.h>
  41 #include <stdlib.h>
  42 #include <string.h>
  43 #include <unistd.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #ifdef HAVE_SYS_MMAN_H
  47 #include <sys/mman.h>
  48 #endif
  49 #include "windef.h"
  50 #include "winbase.h"
  51 #include "winerror.h"
  52 #include "callback.h"
  53 #include "file.h"
  54 #include "heap.h"
  55 #include "neexe.h"
  56 #include "process.h"
  57 #include "thread.h"
  58 #include "pe_image.h"
  59 #include "module.h"
  60 #include "global.h"
  61 #include "task.h"
  62 #include "snoop.h"
  63 #include "server.h"
  64 #include "debugtools.h"
  65
  66 DEFAULT_DEBUG_CHANNEL(win32)
  67 DECLARE_DEBUG_CHANNEL(delayhlp)
  68 DECLARE_DEBUG_CHANNEL(fixup)
  69 DECLARE_DEBUG_CHANNEL(module)
  70 DECLARE_DEBUG_CHANNEL(relay)
  71 DECLARE_DEBUG_CHANNEL(segment)
  72
  73
  74 /* convert PE image VirtualAddress to Real Address */
  75 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
  76
  77 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  78
  79 void dump_exports( HMODULE hModule )
  80 {
  81   char          *Module;
  82   int           i, j;
  83   u_short       *ordinal;
  84   u_long        *function,*functions;
  85   u_char        **name;
  86   unsigned int load_addr = hModule;
  87
  88   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  89                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
  90   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
  91                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
  92   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
  93
  94   Module = (char*)RVA(pe_exports->Name);
  95   TRACE("*******EXPORT DATA*******\n");
  96   TRACE("Module name is %s, %ld functions, %ld names\n",
  97         Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
  98
  99   ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
 100   functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
 101   name=(u_char**) RVA(pe_exports->AddressOfNames);
 102
 103   TRACE(" Ord    RVA     Addr   Name\n" );
 104   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
 105   {
 106       if (!*function) continue;  /* No such function */
 107       if (TRACE_ON(win32))
 108       {
 109         DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
 110         /* Check if we have a name for it */
 111         for (j = 0; j < pe_exports->NumberOfNames; j++)
 112           if (ordinal[j] == i)
 113           {
 114               DPRINTF( "  %s", (char*)RVA(name[j]) );
 115               break;
 116           }
 117         if ((*function >= rva_start) && (*function <= rva_end))
 118           DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
 119         DPRINTF("\n");
 120       }
 121   }
 122 }
 123
 124 /* Look up the specified function or ordinal in the exportlist:
 125  * If it is a string:
 126  *      - look up the name in the Name list.
 127  *      - look up the ordinal with that index.
 128  *      - use the ordinal as offset into the functionlist
 129  * If it is a ordinal:
 130  *      - use ordinal-pe_export->Base as offset into the functionlist
 131  */
 132 FARPROC PE_FindExportedFunction(
 133         WINE_MODREF *wm,        /* [in] WINE modreference */
 134         LPCSTR funcName,        /* [in] function name */
 135         BOOL snoop )
 136 {
 137         u_short                         * ordinals;
 138         u_long                          * function;
 139         u_char                          ** name, *ename = NULL;
 140         int                             i, ordinal;
 141         PE_MODREF                       *pem = &(wm->binfmt.pe);
 142         IMAGE_EXPORT_DIRECTORY          *exports = pem->pe_export;
 143         unsigned int                    load_addr = wm->module;
 144         u_long                          rva_start, rva_end, addr;
 145         char                            * forward;
 146
 147         if (HIWORD(funcName))
 148                 TRACE("(%s)\n",funcName);
 149         else
 150                 TRACE("(%d)\n",(int)funcName);
 151         if (!exports) {
 152                 /* Not a fatal problem, some apps do
 153                  * GetProcAddress(0,"RegisterPenApp") which triggers this
 154                  * case.
 155                  */
 156                 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,pem);
 157                 return NULL;
 158         }
 159         ordinals= (u_short*)  RVA(exports->AddressOfNameOrdinals);
 160         function= (u_long*)   RVA(exports->AddressOfFunctions);
 161         name    = (u_char **) RVA(exports->AddressOfNames);
 162         forward = NULL;
 163         rva_start = PE_HEADER(wm->module)->OptionalHeader
 164                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 165         rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
 166                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 167
 168         if (HIWORD(funcName))
 169         {
 170             /* first try a binary search */
 171             int min = 0, max = exports->NumberOfNames - 1;
 172             while (min <= max)
 173             {
 174                 int res, pos = (min + max) / 2;
 175                 ename = RVA(name[pos]);
 176                 if (!(res = strcmp( ename, funcName )))
 177                 {
 178                     ordinal = ordinals[pos];
 179                     goto found;
 180                 }
 181                 if (res > 0) max = pos - 1;
 182                 else min = pos + 1;
 183             }
 184             /* now try a linear search in case the names aren't sorted properly */
 185             for (i = 0; i < exports->NumberOfNames; i++)
 186             {
 187                 ename = RVA(name[i]);
 188                 if (!strcmp( ename, funcName ))
 189                 {
 190                     ERR( "%s.%s required a linear search\n", wm->modname, funcName );
 191                     ordinal = ordinals[i];
 192                     goto found;
 193                 }
 194             }
 195             return NULL;
 196         }
 197         else  /* find by ordinal */
 198         {
 199             ordinal = LOWORD(funcName) - exports->Base;
 200             if (snoop && name)  /* need to find a name for it */
 201             {
 202                 for (i = 0; i < exports->NumberOfNames; i++)
 203                     if (ordinals[i] == ordinal)
 204                     {
 205                         ename = RVA(name[i]);
 206                         break;
 207                     }
 208             }
 209         }
 210
 211  found:
 212         if (ordinal >= exports->NumberOfFunctions)
 213         {
 214             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 215             return NULL;
 216         }
 217         addr = function[ordinal];
 218         if (!addr) return NULL;
 219         if ((addr < rva_start) || (addr >= rva_end))
 220         {
 221             FARPROC proc = RVA(addr);
 222             if (snoop)
 223             {
 224                 if (!ename) ename = "@";
 225                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 226             }
 227             return proc;
 228         }
 229         else  /* forward entry point */
 230         {
 231                 WINE_MODREF *wm;
 232                 char *forward = RVA(addr);
 233                 char module[256];
 234                 char *end = strchr(forward, '.');
 235
 236                 if (!end) return NULL;
 237                 if (end - forward >= sizeof(module)) return NULL;
 238                 memcpy( module, forward, end - forward );
 239                 module[end-forward] = 0;
 240                 if (!(wm = MODULE_FindModule( module )))
 241                 {
 242                     ERR("module not found for forward '%s'\n", forward );
 243                     return NULL;
 244                 }
 245                 return MODULE_GetProcAddress( wm->module, end + 1, snoop );
 246         }
 247 }
 248
 249 DWORD fixup_imports( WINE_MODREF *wm )
 250 {
 251     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 252     PE_MODREF                   *pem;
 253     unsigned int load_addr      = wm->module;
 254     int                         i,characteristics_detection=1;
 255     char                        *modname;
 256
 257     assert(wm->type==MODULE32_PE);
 258     pem = &(wm->binfmt.pe);
 259     if (pem->pe_export)
 260         modname = (char*) RVA(pem->pe_export->Name);
 261     else
 262         modname = "<unknown>";
 263
 264     /* OK, now dump the import list */
 265     TRACE("Dumping imports list\n");
 266
 267     /* first, count the number of imported non-internal modules */
 268     pe_imp = pem->pe_import;
 269     if (!pe_imp) return 0;
 270
 271     /* We assume that we have at least one import with !0 characteristics and
 272      * detect broken imports with all characteristsics 0 (notably Borland) and
 273      * switch the detection off for them.
 274      */
 275     for (i = 0; pe_imp->Name ; pe_imp++) {
 276         if (!i && !pe_imp->u.Characteristics)
 277                 characteristics_detection = 0;
 278         if (characteristics_detection && !pe_imp->u.Characteristics)
 279                 break;
 280         i++;
 281     }
 282     if (!i) return 0;  /* no imports */
 283
 284     /* Allocate module dependency list */
 285     wm->nDeps = i;
 286     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 287
 288     /* load the imported modules. They are automatically
 289      * added to the modref list of the process.
 290      */
 291
 292     for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) {
 293         WINE_MODREF             *wmImp;
 294         IMAGE_IMPORT_BY_NAME    *pe_name;
 295         PIMAGE_THUNK_DATA       import_list,thunk_list;
 296         char                    *name = (char *) RVA(pe_imp->Name);
 297
 298         if (characteristics_detection && !pe_imp->u.Characteristics)
 299                 break;
 300
 301         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 302         if (!wmImp) {
 303             ERR_(module)("Module %s not found\n", name);
 304             return 1;
 305         }
 306         wm->deps[i++] = wmImp;
 307
 308         /* FIXME: forwarder entries ... */
 309
 310         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 311             TRACE("Microsoft style imports used\n");
 312             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 313             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 314
 315             while (import_list->u1.Ordinal) {
 316                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 317                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 318
 319                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 320                     thunk_list->u1.Function=MODULE_GetProcAddress(
 321                         wmImp->module, (LPCSTR)ordinal, TRUE
 322                     );
 323                     if (!thunk_list->u1.Function) {
 324                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 325                                 name, ordinal);
 326                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 327                     }
 328                 } else {                /* import by name */
 329                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 330                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 331                     thunk_list->u1.Function=MODULE_GetProcAddress(
 332                         wmImp->module, pe_name->Name, TRUE
 333                     );
 334                     if (!thunk_list->u1.Function) {
 335                         ERR("No implementation for %s.%d(%s), setting to 0xdeadbeef\n",
 336                                 name,pe_name->Hint,pe_name->Name);
 337                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 338                     }
 339                 }
 340                 import_list++;
 341                 thunk_list++;
 342             }
 343         } else {        /* Borland style */
 344             TRACE("Borland style imports used\n");
 345             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 346             while (thunk_list->u1.Ordinal) {
 347                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 348                     /* not sure about this branch, but it seems to work */
 349                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 350
 351                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 352                     thunk_list->u1.Function=MODULE_GetProcAddress(
 353                         wmImp->module, (LPCSTR) ordinal, TRUE
 354                     );
 355                     if (!thunk_list->u1.Function) {
 356                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 357                                 name,ordinal);
 358                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 359                     }
 360                 } else {
 361                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 362                     TRACE("--- %s %s.%d\n",
 363                                   pe_name->Name,name,pe_name->Hint);
 364                     thunk_list->u1.Function=MODULE_GetProcAddress(
 365                         wmImp->module, pe_name->Name, TRUE
 366                     );
 367                     if (!thunk_list->u1.Function) {
 368                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 369                                 name, pe_name->Hint);
 370                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 371                     }
 372                 }
 373                 thunk_list++;
 374             }
 375         }
 376     }
 377     return 0;
 378 }
 379
 380 static int calc_vma_size( HMODULE hModule )
 381 {
 382     int i,vma_size = 0;
 383     IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
 384
 385     TRACE("Dump of segment table\n");
 386     TRACE("   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 387     for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
 388     {
 389         TRACE("%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 390                       pe_seg->Name,
 391                       pe_seg->Misc.VirtualSize,
 392                       pe_seg->VirtualAddress,
 393                       pe_seg->SizeOfRawData,
 394                       pe_seg->PointerToRawData,
 395                       pe_seg->PointerToRelocations,
 396                       pe_seg->PointerToLinenumbers,
 397                       pe_seg->NumberOfRelocations,
 398                       pe_seg->NumberOfLinenumbers,
 399                       pe_seg->Characteristics);
 400         vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
 401         vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize);
 402         pe_seg++;
 403     }
 404     return vma_size;
 405 }
 406
 407 static void do_relocations( unsigned int load_addr, IMAGE_BASE_RELOCATION *r )
 408 {
 409     int delta = load_addr - PE_HEADER(load_addr)->OptionalHeader.ImageBase;
 410     int hdelta = (delta >> 16) & 0xFFFF;
 411     int ldelta = delta & 0xFFFF;
 412
 413         if(delta == 0)
 414                 /* Nothing to do */
 415                 return;
 416         while(r->VirtualAddress)
 417         {
 418                 char *page = (char*) RVA(r->VirtualAddress);
 419                 int count = (r->SizeOfBlock - 8)/2;
 420                 int i;
 421                 TRACE_(fixup)("%x relocations for page %lx\n",
 422                         count, r->VirtualAddress);
 423                 /* patching in reverse order */
 424                 for(i=0;i<count;i++)
 425                 {
 426                         int offset = r->TypeOffset[i] & 0xFFF;
 427                         int type = r->TypeOffset[i] >> 12;
 428                         TRACE_(fixup)("patching %x type %x\n", offset, type);
 429                         switch(type)
 430                         {
 431                         case IMAGE_REL_BASED_ABSOLUTE: break;
 432                         case IMAGE_REL_BASED_HIGH:
 433                                 *(short*)(page+offset) += hdelta;
 434                                 break;
 435                         case IMAGE_REL_BASED_LOW:
 436                                 *(short*)(page+offset) += ldelta;
 437                                 break;
 438                         case IMAGE_REL_BASED_HIGHLOW:
 439                                 *(int*)(page+offset) += delta;
 440                                 /* FIXME: if this is an exported address, fire up enhanced logic */
 441                                 break;
 442                         case IMAGE_REL_BASED_HIGHADJ:
 443                                 FIXME("Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 444                                 break;
 445                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 446                                 FIXME("Is this a MIPS machine ???\n");
 447                                 break;
 448                         default:
 449                                 FIXME("Unknown fixup type\n");
 450                                 break;
 451                         }
 452                 }
 453                 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
 454         }
 455 }
 456
 457
 458
 459
 460
 461 /**********************************************************************
 462  *                      PE_LoadImage
 463  * Load one PE format DLL/EXE into memory
 464  *
 465  * Unluckily we can't just mmap the sections where we want them, for
 466  * (at least) Linux does only support offsets which are page-aligned.
 467  *
 468  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 469  * want to access them. (HMODULE32 point to the start of it)
 470  */
 471 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, WORD *version )
 472 {
 473     HMODULE     hModule;
 474     HANDLE      mapping;
 475
 476     IMAGE_NT_HEADERS *nt;
 477     IMAGE_SECTION_HEADER *pe_sec;
 478     IMAGE_DATA_DIRECTORY *dir;
 479     BY_HANDLE_FILE_INFORMATION bhfi;
 480     int i, rawsize, lowest_va, vma_size, file_size = 0;
 481     DWORD load_addr = 0, aoep, reloc = 0;
 482     struct get_read_fd_request *req = get_req_buffer();
 483     int unix_handle = -1;
 484     int page_size = VIRTUAL_GetPageSize();
 485
 486     /* Retrieve file size */
 487     if ( GetFileInformationByHandle( hFile, &bhfi ) )
 488         file_size = bhfi.nFileSizeLow; /* FIXME: 64 bit */
 489
 490     /* Map the PE file somewhere */
 491     mapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
 492                                     0, 0, NULL );
 493     if (!mapping)
 494     {
 495         WARN("CreateFileMapping error %ld\n", GetLastError() );
 496         return 0;
 497     }
 498     hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 499     CloseHandle( mapping );
 500     if (!hModule)
 501     {
 502         WARN("MapViewOfFile error %ld\n", GetLastError() );
 503         return 0;
 504     }
 505     if ( *(WORD*)hModule !=IMAGE_DOS_SIGNATURE)
 506     {
 507         WARN("%s image doesn't have DOS signature, but 0x%04x\n", filename,*(WORD*)hModule);
 508         goto error;
 509     }
 510
 511     nt = PE_HEADER( hModule );
 512
 513     /* Check signature */
 514     if ( nt->Signature != IMAGE_NT_SIGNATURE )
 515     {
 516         WARN("%s image doesn't have PE signature, but 0x%08lx\n", filename, nt->Signature );
 517         goto error;
 518     }
 519
 520     /* Check architecture */
 521     if ( nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386 )
 522     {
 523         MESSAGE("Trying to load PE image for unsupported architecture (");
 524         switch (nt->FileHeader.Machine)
 525         {
 526         case IMAGE_FILE_MACHINE_UNKNOWN: MESSAGE("Unknown"); break;
 527         case IMAGE_FILE_MACHINE_I860:    MESSAGE("I860"); break;
 528         case IMAGE_FILE_MACHINE_R3000:   MESSAGE("R3000"); break;
 529         case IMAGE_FILE_MACHINE_R4000:   MESSAGE("R4000"); break;
 530         case IMAGE_FILE_MACHINE_R10000:  MESSAGE("R10000"); break;
 531         case IMAGE_FILE_MACHINE_ALPHA:   MESSAGE("Alpha"); break;
 532         case IMAGE_FILE_MACHINE_POWERPC: MESSAGE("PowerPC"); break;
 533         default: MESSAGE("Unknown-%04x", nt->FileHeader.Machine); break;
 534         }
 535         MESSAGE(")\n");
 536         goto error;
 537     }
 538
 539     /* Find out how large this executeable should be */
 540     pe_sec = PE_SECTIONS( hModule );
 541     rawsize = 0; lowest_va = 0x10000;
 542     for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
 543     {
 544         if (lowest_va > pe_sec[i].VirtualAddress)
 545            lowest_va = pe_sec[i].VirtualAddress;
 546         if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 547             continue;
 548         if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize)
 549             rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData;
 550     }
 551
 552     /* Check file size */
 553     if ( file_size && file_size < rawsize )
 554     {
 555         ERR("PE module is too small (header: %d, filesize: %d), "
 556                     "probably truncated download?\n",
 557                     rawsize, file_size );
 558         goto error;
 559     }
 560
 561     /* Check entrypoint address */
 562     aoep = nt->OptionalHeader.AddressOfEntryPoint;
 563     if (aoep && (aoep < lowest_va))
 564         FIXME("VIRUS WARNING: '%s' has an invalid entrypoint (0x%08lx) "
 565                       "below the first virtual address (0x%08x) "
 566                       "(possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 567                        filename, aoep, lowest_va );
 568
 569
 570     /* FIXME:  Hack!  While we don't really support shared sections yet,
 571      *         this checks for those special cases where the whole DLL
 572      *         consists only of shared sections and is mapped into the
 573      *         shared address space > 2GB.  In this case, we assume that
 574      *         the module got mapped at its base address. Thus we simply
 575      *         check whether the module has actually been mapped there
 576      *         and use it, if so.  This is needed to get Win95 USER32.DLL
 577      *         to work (until we support shared sections properly).
 578      */
 579
 580     if ( nt->OptionalHeader.ImageBase & 0x80000000 )
 581     {
 582         HMODULE sharedMod = (HMODULE)nt->OptionalHeader.ImageBase;
 583         IMAGE_NT_HEADERS *sharedNt = (PIMAGE_NT_HEADERS)
 584                ( (LPBYTE)sharedMod + ((LPBYTE)nt - (LPBYTE)hModule) );
 585
 586         /* Well, this check is not really comprehensive,
 587            but should be good enough for now ... */
 588         if (    !IsBadReadPtr( (LPBYTE)sharedMod, sizeof(IMAGE_DOS_HEADER) )
 589              && memcmp( (LPBYTE)sharedMod, (LPBYTE)hModule, sizeof(IMAGE_DOS_HEADER) ) == 0
 590              && !IsBadReadPtr( sharedNt, sizeof(IMAGE_NT_HEADERS) )
 591              && memcmp( sharedNt, nt, sizeof(IMAGE_NT_HEADERS) ) == 0 )
 592         {
 593             UnmapViewOfFile( (LPVOID)hModule );
 594             return sharedMod;
 595         }
 596     }
 597
 598
 599     /* Allocate memory for module */
 600     load_addr = nt->OptionalHeader.ImageBase;
 601     vma_size = calc_vma_size( hModule );
 602
 603     load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
 604                                      MEM_RESERVE | MEM_COMMIT,
 605                                      PAGE_EXECUTE_READWRITE );
 606     if (load_addr == 0)
 607     {
 608         /* We need to perform base relocations */
 609         FIXME("We need to perform base relocations for %s\n", filename);
 610         dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BASERELOC;
 611         if (dir->Size)
 612             reloc = dir->VirtualAddress;
 613         else
 614         {
 615             FIXME( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 616                    filename,
 617                    (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 618                    "stripped during link" : "unknown reason" );
 619             goto error;
 620         }
 621
 622         /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
 623          *        really make sure that the *new* base address is also > 2GB.
 624          *        Some DLLs really check the MSB of the module handle :-/
 625          */
 626         if ( nt->OptionalHeader.ImageBase & 0x80000000 )
 627             ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
 628
 629         load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
 630                                          MEM_RESERVE | MEM_COMMIT,
 631                                          PAGE_EXECUTE_READWRITE );
 632         if (!load_addr) {
 633             FIXME_(win32)(
 634                    "FATAL: Couldn't load module %s (out of memory, %d needed)!\n", filename, vma_size);
 635             goto error;
 636         }
 637     }
 638
 639     TRACE("Load addr is %lx (base %lx), range %x\n",
 640           load_addr, nt->OptionalHeader.ImageBase, vma_size );
 641     TRACE_(segment)("Loading %s at %lx, range %x\n",
 642                     filename, load_addr, vma_size );
 643
 644 #if 0
 645     /* Store the NT header at the load addr */
 646     *(PIMAGE_DOS_HEADER)load_addr = *(PIMAGE_DOS_HEADER)hModule;
 647     *PE_HEADER( load_addr ) = *nt;
 648     memcpy( PE_SECTIONS(load_addr), PE_SECTIONS(hModule),
 649             sizeof(IMAGE_SECTION_HEADER) * nt->FileHeader.NumberOfSections );
 650
 651     /* Copies all stuff up to the first section. Including win32 viruses. */
 652     memcpy( load_addr, hModule, lowest_fa );
 653 #endif
 654
 655     req->handle = hFile;
 656     server_call_fd( REQ_GET_READ_FD, -1, &unix_handle );
 657     if (unix_handle == -1) goto error;
 658
 659     /* Map the header */
 660     if (FILE_dommap( unix_handle, (void *)load_addr, 0, nt->OptionalHeader.SizeOfHeaders,
 661                      0, 0, PROT_EXEC | PROT_WRITE | PROT_READ,
 662                      MAP_PRIVATE | MAP_FIXED ) != (void*)load_addr)
 663     {
 664         ERR_(win32)( "Critical Error: failed to map PE header to necessary address.\n");
 665         goto error;
 666     }
 667
 668     /* Copy sections into module image */
 669     pe_sec = PE_SECTIONS( hModule );
 670     for (i = 0; i < nt->FileHeader.NumberOfSections; i++, pe_sec++)
 671     {
 672         if (!pe_sec->SizeOfRawData || !pe_sec->PointerToRawData) continue;
 673         TRACE("%s: mmaping section %s at %p off %lx size %lx/%lx\n",
 674               filename, pe_sec->Name, (void*)RVA(pe_sec->VirtualAddress),
 675               pe_sec->PointerToRawData, pe_sec->SizeOfRawData, pe_sec->Misc.VirtualSize );
 676         if (FILE_dommap( unix_handle, (void*)RVA(pe_sec->VirtualAddress),
 677                          0, pe_sec->SizeOfRawData, 0, pe_sec->PointerToRawData,
 678                          PROT_EXEC | PROT_WRITE | PROT_READ,
 679                          MAP_PRIVATE | MAP_FIXED ) != (void*)RVA(pe_sec->VirtualAddress))
 680         {
 681             /* We failed to map to the right place (huh?) */
 682             ERR_(win32)( "Critical Error: failed to map PE section to necessary address.\n");
 683             goto error;
 684         }
 685         if ((pe_sec->SizeOfRawData < pe_sec->Misc.VirtualSize) &&
 686             (pe_sec->SizeOfRawData & (page_size-1)))
 687         {
 688             DWORD end = (pe_sec->SizeOfRawData & ~(page_size-1)) + page_size;
 689             if (end > pe_sec->Misc.VirtualSize) end = pe_sec->Misc.VirtualSize;
 690             TRACE("clearing %p - %p\n",
 691                   RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData,
 692                   RVA(pe_sec->VirtualAddress) + end );
 693             memset( (char*)RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData, 0,
 694                     end - pe_sec->SizeOfRawData );
 695         }
 696     }
 697
 698     /* Perform base relocation, if necessary */
 699     if ( reloc )
 700         do_relocations( load_addr, (IMAGE_BASE_RELOCATION *)RVA(reloc) );
 701
 702     /* Get expected OS / Subsystem version */
 703     *version =   ( (nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 )
 704                |   (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
 705
 706     /* We don't need the orignal mapping any more */
 707     UnmapViewOfFile( (LPVOID)hModule );
 708     return (HMODULE)load_addr;
 709
 710 error:
 711     if (unix_handle != -1) close( unix_handle );
 712     if (load_addr) VirtualFree( (LPVOID)load_addr, 0, MEM_RELEASE );
 713     UnmapViewOfFile( (LPVOID)hModule );
 714     return 0;
 715 }
 716
 717 /**********************************************************************
 718  *                 PE_CreateModule
 719  *
 720  * Create WINE_MODREF structure for loaded HMODULE32, link it into
 721  * process modref_list, and fixup all imports.
 722  *
 723  * Note: hModule must point to a correctly allocated PE image,
 724  *       with base relocations applied; the 16-bit dummy module
 725  *       associated to hModule must already exist.
 726  *
 727  * Note: This routine must always be called in the context of the
 728  *       process that is to own the module to be created.
 729  */
 730 WINE_MODREF *PE_CreateModule( HMODULE hModule,
 731                               LPCSTR filename, DWORD flags, BOOL builtin )
 732 {
 733     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 734     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 735     IMAGE_DATA_DIRECTORY *dir;
 736     IMAGE_IMPORT_DESCRIPTOR *pe_import = NULL;
 737     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 738     IMAGE_RESOURCE_DIRECTORY *pe_resource = NULL;
 739     WINE_MODREF *wm;
 740     int result;
 741
 742
 743     /* Retrieve DataDirectory entries */
 744
 745     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 746     if (dir->Size)
 747         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 748
 749     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IMPORT;
 750     if (dir->Size)
 751         pe_import = (PIMAGE_IMPORT_DESCRIPTOR)RVA(dir->VirtualAddress);
 752
 753     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE;
 754     if (dir->Size)
 755         pe_resource = (PIMAGE_RESOURCE_DIRECTORY)RVA(dir->VirtualAddress);
 756
 757     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 758     if (dir->Size) FIXME("Exception directory ignored\n" );
 759
 760     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 761     if (dir->Size) FIXME("Security directory ignored\n" );
 762
 763     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 764     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 765
 766     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DEBUG;
 767     if (dir->Size) TRACE("Debug directory ignored\n" );
 768
 769     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COPYRIGHT;
 770     if (dir->Size) FIXME("Copyright string ignored\n" );
 771
 772     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 773     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 774
 775     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 776
 777     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 778     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 779
 780     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 781     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 782
 783     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 784     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 785
 786     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 787     if (dir->Size)
 788     {
 789                 TRACE("Delayed import, stub calls LoadLibrary\n" );
 790                 /*
 791                  * Nothing to do here.
 792                  */
 793
 794 #ifdef ImgDelayDescr
 795                 /*
 796                  * This code is useful to observe what the heck is going on.
 797                  */
 798                 {
 799                 ImgDelayDescr *pe_delay = NULL;
 800         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 801         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 802         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 803         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 804         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 805         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 806         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 807         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 808         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 809         }
 810 #endif /* ImgDelayDescr */
 811         }
 812
 813     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 814     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 815
 816     dir = nt->OptionalHeader.DataDirectory+15;
 817     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 818
 819
 820     /* Allocate and fill WINE_MODREF */
 821
 822     wm = (WINE_MODREF *)HeapAlloc( GetProcessHeap(),
 823                                    HEAP_ZERO_MEMORY, sizeof(*wm) );
 824     wm->module = hModule;
 825
 826     if ( builtin )
 827         wm->flags |= WINE_MODREF_INTERNAL;
 828     if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 829         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 830     if ( flags & LOAD_LIBRARY_AS_DATAFILE )
 831         wm->flags |= WINE_MODREF_LOAD_AS_DATAFILE;
 832
 833     wm->type = MODULE32_PE;
 834     wm->binfmt.pe.pe_export = pe_export;
 835     wm->binfmt.pe.pe_import = pe_import;
 836     wm->binfmt.pe.pe_resource = pe_resource;
 837     wm->binfmt.pe.tlsindex = -1;
 838
 839     wm->filename = HEAP_strdupA( GetProcessHeap(), 0, filename );
 840     wm->modname = strrchr( wm->filename, '\\' );
 841     if (!wm->modname) wm->modname = wm->filename;
 842     else wm->modname++;
 843
 844     result = GetShortPathNameA( wm->filename, NULL, 0 );
 845     wm->short_filename = (char *)HeapAlloc( GetProcessHeap(), 0, result+1 );
 846     GetShortPathNameA( wm->filename, wm->short_filename, result+1 );
 847     wm->short_modname = strrchr( wm->short_filename, '\\' );
 848     if (!wm->short_modname) wm->short_modname = wm->short_filename;
 849     else wm->short_modname++;
 850
 851     /* Link MODREF into process list */
 852
 853     EnterCriticalSection( &PROCESS_Current()->crit_section );
 854
 855     wm->next = PROCESS_Current()->modref_list;
 856     PROCESS_Current()->modref_list = wm;
 857     if ( wm->next ) wm->next->prev = wm;
 858
 859     if (    !( nt->FileHeader.Characteristics & IMAGE_FILE_DLL )
 860          && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) )
 861
 862     {
 863         if ( PROCESS_Current()->exe_modref )
 864             FIXME( "Trying to load second .EXE file: %s\n", filename );
 865         else
 866             PROCESS_Current()->exe_modref = wm;
 867     }
 868
 869     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 870
 871
 872     /* Dump Exports */
 873
 874     if ( pe_export )
 875         dump_exports( hModule );
 876
 877     /* Fixup Imports */
 878
 879     if (    pe_import
 880          && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE )
 881          && !( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
 882          && fixup_imports( wm ) )
 883     {
 884         /* remove entry from modref chain */
 885         EnterCriticalSection( &PROCESS_Current()->crit_section );
 886
 887         if ( !wm->prev )
 888             PROCESS_Current()->modref_list = wm->next;
 889         else
 890             wm->prev->next = wm->next;
 891
 892         if ( wm->next ) wm->next->prev = wm->prev;
 893         wm->next = wm->prev = NULL;
 894
 895         LeaveCriticalSection( &PROCESS_Current()->crit_section );
 896
 897         /* FIXME: there are several more dangling references
 898          * left. Including dlls loaded by this dll before the
 899          * failed one. Unrolling is rather difficult with the
 900          * current structure and we can leave it them lying
 901          * around with no problems, so we don't care.
 902          * As these might reference our wm, we don't free it.
 903          */
 904          return NULL;
 905     }
 906
 907     return wm;
 908 }
 909
 910 /******************************************************************************
 911  * The PE Library Loader frontend.
 912  * FIXME: handle the flags.
 913  */
 914 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 915 {
 916         struct load_dll_request *req = get_req_buffer();
 917         HMODULE         hModule32;
 918         HMODULE16       hModule16;
 919         WINE_MODREF     *wm;
 920         char            filename[256];
 921         HANDLE          hFile;
 922         WORD            version = 0;
 923
 924         /* Search for and open PE file */
 925         if ( SearchPathA( NULL, name, ".DLL",
 926                           sizeof(filename), filename, NULL ) == 0 ) return NULL;
 927
 928         hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
 929                              NULL, OPEN_EXISTING, 0, -1 );
 930         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 931
 932         /* Load PE module */
 933         hModule32 = PE_LoadImage( hFile, filename, &version );
 934         if (!hModule32)
 935         {
 936                 CloseHandle( hFile );
 937                 SetLastError( ERROR_OUTOFMEMORY );      /* Not entirely right, but good enough */
 938                 return NULL;
 939         }
 940
 941         /* Create 16-bit dummy module */
 942         if ((hModule16 = MODULE_CreateDummyModule( filename, hModule32 )) < 32)
 943         {
 944                 CloseHandle( hFile );
 945                 SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 946                 return NULL;
 947         }
 948
 949         /* Create 32-bit MODREF */
 950         if ( !(wm = PE_CreateModule( hModule32, filename, flags, FALSE )) )
 951         {
 952                 ERR( "can't load %s\n", filename );
 953                 FreeLibrary16( hModule16 );
 954                 CloseHandle( hFile );
 955                 SetLastError( ERROR_OUTOFMEMORY );
 956                 return NULL;
 957         }
 958
 959         if (wm->binfmt.pe.pe_export)
 960                 SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
 961         req->handle     = hFile;
 962         req->base       = (void *)hModule32;
 963         req->dbg_offset = 0;
 964         req->dbg_size   = 0;
 965         req->name       = &wm->modname;
 966         server_call_noerr( REQ_LOAD_DLL );
 967         CloseHandle( hFile );
 968         return wm;
 969 }
 970
 971
 972 /*****************************************************************************
 973  *      PE_UnloadLibrary
 974  *
 975  * Unload the library unmapping the image and freeing the modref structure.
 976  */
 977 void PE_UnloadLibrary(WINE_MODREF *wm)
 978 {
 979     TRACE(" unloading %s\n", wm->filename);
 980 /*    VirtualFree( (LPVOID)wm->module, 0, MEM_RELEASE ); */  /* FIXME */
 981     HeapFree( GetProcessHeap(), 0, wm->filename );
 982     HeapFree( GetProcessHeap(), 0, wm->short_filename );
 983     HeapFree( GetProcessHeap(), 0, wm );
 984 }
 985
 986 /*****************************************************************************
 987  * Load the PE main .EXE. All other loading is done by PE_LoadLibraryExA
 988  * FIXME: this function should use PE_LoadLibraryExA, but currently can't
 989  * due to the PROCESS_Create stuff.
 990  */
 991 BOOL PE_CreateProcess( HANDLE hFile, LPCSTR filename, LPCSTR cmd_line, LPCSTR env,
 992                        LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 993                        BOOL inherit, DWORD flags, LPSTARTUPINFOA startup,
 994                        LPPROCESS_INFORMATION info )
 995 {
 996     WORD version = 0;
 997     HMODULE16 hModule16;
 998     HMODULE hModule32;
 999     NE_MODULE *pModule;
1000
1001     /* Load file */
1002     if ( (hModule32 = PE_LoadImage( hFile, filename, &version )) < 32 )
1003     {
1004         SetLastError( hModule32 );
1005         return FALSE;
1006     }
1007 #if 0
1008     if (PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
1009     {
1010         SetLastError( 20 );  /* FIXME: not the right error code */
1011         return FALSE;
1012     }
1013 #endif
1014
1015     /* Create 16-bit dummy module */
1016     if ( (hModule16 = MODULE_CreateDummyModule( filename, hModule32 )) < 32 )
1017     {
1018         SetLastError( hModule16 );
1019         return FALSE;
1020     }
1021     pModule = (NE_MODULE *)GlobalLock16( hModule16 );
1022
1023     /* Create new process */
1024     if ( !PROCESS_Create( pModule, hFile, cmd_line, env,
1025                           psa, tsa, inherit, flags, startup, info ) )
1026         return FALSE;
1027
1028     /* Note: PE_CreateModule and the remaining process initialization will
1029              be done in the context of the new process, in TASK_CallToStart */
1030
1031     return TRUE;
1032 }
1033
1034
1035 /* Called if the library is loaded or freed.
1036  * NOTE: if a thread attaches a DLL, the current thread will only do
1037  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
1038  * (SDK)
1039  */
1040 BOOL PE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
1041 {
1042     BOOL retv = TRUE;
1043     assert( wm->type == MODULE32_PE );
1044
1045     /* Is this a library? And has it got an entrypoint? */
1046     if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
1047         (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
1048     ) {
1049         DLLENTRYPROC entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
1050         TRACE_(relay)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
1051                        entry, wm->module, type, lpReserved );
1052
1053         retv = entry( wm->module, type, lpReserved );
1054     }
1055
1056     return retv;
1057 }
1058
1059 /************************************************************************
1060  *      PE_InitTls                      (internal)
1061  *
1062  * If included, initialises the thread local storages of modules.
1063  * Pointers in those structs are not RVAs but real pointers which have been
1064  * relocated by do_relocations() already.
1065  */
1066 static LPVOID
1067 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
1068         if (    ((DWORD)addr>opt->ImageBase) &&
1069                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
1070         )
1071                 /* the address has not been relocated! */
1072                 return (LPVOID)(((DWORD)addr)+delta);
1073         else
1074                 /* the address has been relocated already */
1075                 return addr;
1076 }
1077 void PE_InitTls( void )
1078 {
1079         WINE_MODREF             *wm;
1080         PE_MODREF               *pem;
1081         IMAGE_NT_HEADERS        *peh;
1082         DWORD                   size,datasize;
1083         LPVOID                  mem;
1084         PIMAGE_TLS_DIRECTORY    pdir;
1085         int delta;
1086
1087         for (wm = PROCESS_Current()->modref_list;wm;wm=wm->next) {
1088                 if (wm->type!=MODULE32_PE)
1089                         continue;
1090                 pem = &(wm->binfmt.pe);
1091                 peh = PE_HEADER(wm->module);
1092                 delta = wm->module - peh->OptionalHeader.ImageBase;
1093                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
1094                         continue;
1095                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
1096                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
1097
1098
1099                 if ( pem->tlsindex == -1 ) {
1100                         LPDWORD xaddr;
1101                         pem->tlsindex = TlsAlloc();
1102                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
1103                                         pdir->AddressOfIndex
1104                         );
1105                         *xaddr=pem->tlsindex;
1106                 }
1107                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
1108                 size    = datasize + pdir->SizeOfZeroFill;
1109                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
1110                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
1111                 if (pdir->AddressOfCallBacks) {
1112                      PIMAGE_TLS_CALLBACK *cbs;
1113
1114                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
1115                      if (*cbs)
1116                        FIXME("TLS Callbacks aren't going to be called\n");
1117                 }
1118
1119                 TlsSetValue( pem->tlsindex, mem );
1120         }
1121 }
1122