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  *      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 static IMAGE_EXPORT_DIRECTORY *get_exports( HMODULE hmod )
  59 {
  60     IMAGE_EXPORT_DIRECTORY *ret = NULL;
  61     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  62                                 + IMAGE_DIRECTORY_ENTRY_EXPORT;
  63     if (dir->Size && dir->VirtualAddress)
  64         ret = (IMAGE_EXPORT_DIRECTORY *)((char *)hmod + dir->VirtualAddress);
  65     return ret;
  66 }
  67
  68 static IMAGE_IMPORT_DESCRIPTOR *get_imports( HMODULE hmod )
  69 {
  70     IMAGE_IMPORT_DESCRIPTOR *ret = NULL;
  71     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  72                                 + IMAGE_DIRECTORY_ENTRY_IMPORT;
  73     if (dir->Size && dir->VirtualAddress)
  74         ret = (IMAGE_IMPORT_DESCRIPTOR *)((char *)hmod + dir->VirtualAddress);
  75     return ret;
  76 }
  77
  78
  79 /* convert PE image VirtualAddress to Real Address */
  80 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
  81
  82 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  83
  84 void dump_exports( HMODULE hModule )
  85 {
  86   char          *Module;
  87   int           i, j;
  88   WORD          *ordinal;
  89   DWORD         *function,*functions;
  90   BYTE          **name;
  91   unsigned int load_addr = hModule;
  92
  93   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  94                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
  95   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
  96                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
  97   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
  98
  99   Module = (char*)RVA(pe_exports->Name);
 100   TRACE("*******EXPORT DATA*******\n");
 101   TRACE("Module name is %s, %ld functions, %ld names\n",
 102         Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
 103
 104   ordinal = RVA(pe_exports->AddressOfNameOrdinals);
 105   functions = function = RVA(pe_exports->AddressOfFunctions);
 106   name = RVA(pe_exports->AddressOfNames);
 107
 108   TRACE(" Ord    RVA     Addr   Name\n" );
 109   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
 110   {
 111       if (!*function) continue;  /* No such function */
 112       if (TRACE_ON(win32))
 113       {
 114         DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
 115         /* Check if we have a name for it */
 116         for (j = 0; j < pe_exports->NumberOfNames; j++)
 117           if (ordinal[j] == i)
 118           {
 119               DPRINTF( "  %s", (char*)RVA(name[j]) );
 120               break;
 121           }
 122         if ((*function >= rva_start) && (*function <= rva_end))
 123           DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
 124         DPRINTF("\n");
 125       }
 126   }
 127 }
 128
 129 /* Look up the specified function or ordinal in the export list:
 130  * If it is a string:
 131  *      - look up the name in the name list.
 132  *      - look up the ordinal with that index.
 133  *      - use the ordinal as offset into the functionlist
 134  * If it is an ordinal:
 135  *      - use ordinal-pe_export->Base as offset into the function list
 136  */
 137 static FARPROC PE_FindExportedFunction(
 138         WINE_MODREF *wm,        /* [in] WINE modreference */
 139         LPCSTR funcName,        /* [in] function name */
 140         BOOL snoop )
 141 {
 142         WORD                            * ordinals;
 143         DWORD                           * function;
 144         BYTE                            ** name, *ename = NULL;
 145         int                             i, ordinal;
 146         unsigned int                    load_addr = wm->module;
 147         DWORD                           rva_start, rva_end, addr;
 148         char                            * forward;
 149         IMAGE_EXPORT_DIRECTORY *exports = get_exports(wm->module);
 150
 151         if (HIWORD(funcName))
 152                 TRACE("(%s)\n",funcName);
 153         else
 154                 TRACE("(%d)\n",(int)funcName);
 155         if (!exports) {
 156                 /* Not a fatal problem, some apps do
 157                  * GetProcAddress(0,"RegisterPenApp") which triggers this
 158                  * case.
 159                  */
 160                 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,wm);
 161                 return NULL;
 162         }
 163         ordinals= RVA(exports->AddressOfNameOrdinals);
 164         function= RVA(exports->AddressOfFunctions);
 165         name    = RVA(exports->AddressOfNames);
 166         forward = NULL;
 167         rva_start = PE_HEADER(wm->module)->OptionalHeader
 168                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 169         rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
 170                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 171
 172         if (HIWORD(funcName))
 173         {
 174             /* first try a binary search */
 175             int min = 0, max = exports->NumberOfNames - 1;
 176             while (min <= max)
 177             {
 178                 int res, pos = (min + max) / 2;
 179                 ename = RVA(name[pos]);
 180                 if (!(res = strcmp( ename, funcName )))
 181                 {
 182                     ordinal = ordinals[pos];
 183                     goto found;
 184                 }
 185                 if (res > 0) max = pos - 1;
 186                 else min = pos + 1;
 187             }
 188             /* now try a linear search in case the names aren't sorted properly */
 189             for (i = 0; i < exports->NumberOfNames; i++)
 190             {
 191                 ename = RVA(name[i]);
 192                 if (!strcmp( ename, funcName ))
 193                 {
 194                     ERR( "%s.%s required a linear search\n", wm->modname, funcName );
 195                     ordinal = ordinals[i];
 196                     goto found;
 197                 }
 198             }
 199             return NULL;
 200         }
 201         else  /* find by ordinal */
 202         {
 203             ordinal = LOWORD(funcName) - exports->Base;
 204             if (snoop && name)  /* need to find a name for it */
 205             {
 206                 for (i = 0; i < exports->NumberOfNames; i++)
 207                     if (ordinals[i] == ordinal)
 208                     {
 209                         ename = RVA(name[i]);
 210                         break;
 211                     }
 212             }
 213         }
 214
 215  found:
 216         if (ordinal >= exports->NumberOfFunctions)
 217         {
 218             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 219             return NULL;
 220         }
 221         addr = function[ordinal];
 222         if (!addr) return NULL;
 223         if ((addr < rva_start) || (addr >= rva_end))
 224         {
 225             FARPROC proc = RVA(addr);
 226             if (snoop)
 227             {
 228                 if (!ename) ename = "@";
 229                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 230             }
 231             return proc;
 232         }
 233         else  /* forward entry point */
 234         {
 235                 WINE_MODREF *wm_fw;
 236                 FARPROC proc;
 237                 char *forward = RVA(addr);
 238                 char module[256];
 239                 char *end = strchr(forward, '.');
 240
 241                 if (!end) return NULL;
 242                 if (end - forward >= sizeof(module)) return NULL;
 243                 memcpy( module, forward, end - forward );
 244                 module[end-forward] = 0;
 245                 if (!(wm_fw = MODULE_FindModule( module )))
 246                 {
 247                     ERR("module not found for forward '%s' used by '%s'\n", forward, wm->modname );
 248                     return NULL;
 249                 }
 250                 if (!(proc = MODULE_GetProcAddress( wm_fw->module, end + 1, snoop )))
 251                     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 );
 252                 return proc;
 253         }
 254 }
 255
 256 /****************************************************************
 257  *      PE_fixup_imports
 258  */
 259 DWORD PE_fixup_imports( WINE_MODREF *wm )
 260 {
 261     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 262     unsigned int load_addr      = wm->module;
 263     int                         i,characteristics_detection=1;
 264     IMAGE_IMPORT_DESCRIPTOR *imports = get_imports(wm->module);
 265
 266     /* first, count the number of imported non-internal modules */
 267     pe_imp = imports;
 268     if (!pe_imp) return 0;
 269
 270     /* OK, now dump the import list */
 271     TRACE("Dumping imports list\n");
 272
 273     /* We assume that we have at least one import with !0 characteristics and
 274      * detect broken imports with all characteristics 0 (notably Borland) and
 275      * switch the detection off for them.
 276      */
 277     for (i = 0; pe_imp->Name ; pe_imp++) {
 278         if (!i && !pe_imp->u.Characteristics)
 279                 characteristics_detection = 0;
 280         if (characteristics_detection && !pe_imp->u.Characteristics)
 281                 break;
 282         i++;
 283     }
 284     if (!i) return 0;  /* no imports */
 285
 286     /* Allocate module dependency list */
 287     wm->nDeps = i;
 288     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 289
 290     /* load the imported modules. They are automatically
 291      * added to the modref list of the process.
 292      */
 293
 294     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 295         WINE_MODREF             *wmImp;
 296         IMAGE_IMPORT_BY_NAME    *pe_name;
 297         PIMAGE_THUNK_DATA       import_list,thunk_list;
 298         char                    *name = (char *) RVA(pe_imp->Name);
 299
 300         if (characteristics_detection && !pe_imp->u.Characteristics)
 301                 break;
 302
 303         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 304         if (!wmImp) {
 305             ERR_(module)("Module (file) %s (which is needed by %s) not found\n", name, wm->filename);
 306             return 1;
 307         }
 308         wm->deps[i++] = wmImp;
 309
 310         /* FIXME: forwarder entries ... */
 311
 312         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 313             TRACE("Microsoft style imports used\n");
 314             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 315             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 316
 317             while (import_list->u1.Ordinal) {
 318                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 319                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 320
 321                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 322                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 323                         wmImp->module, (LPCSTR)ordinal, TRUE
 324                     );
 325                     if (!thunk_list->u1.Function) {
 326                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 327                                 name, ordinal, wm->filename );
 328                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 329                     }
 330                 } else {                /* import by name */
 331                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 332                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 333                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 334                         wmImp->module, pe_name->Name, TRUE
 335                     );
 336                     if (!thunk_list->u1.Function) {
 337                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 338                                 name,pe_name->Hint,pe_name->Name,wm->filename);
 339                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 340                     }
 341                 }
 342                 import_list++;
 343                 thunk_list++;
 344             }
 345         } else {        /* Borland style */
 346             TRACE("Borland style imports used\n");
 347             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 348             while (thunk_list->u1.Ordinal) {
 349                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 350                     /* not sure about this branch, but it seems to work */
 351                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 352
 353                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 354                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 355                         wmImp->module, (LPCSTR) ordinal, TRUE
 356                     );
 357                     if (!thunk_list->u1.Function) {
 358                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 359                                 name,ordinal, wm->filename);
 360                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 361                     }
 362                 } else {
 363                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 364                     TRACE("--- %s %s.%d\n",
 365                                   pe_name->Name,name,pe_name->Hint);
 366                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 367                         wmImp->module, pe_name->Name, TRUE
 368                     );
 369                     if (!thunk_list->u1.Function) {
 370                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 371                                 name, pe_name->Hint, pe_name->Name, wm->filename);
 372                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 373                     }
 374                 }
 375                 thunk_list++;
 376             }
 377         }
 378     }
 379     return 0;
 380 }
 381
 382 /***********************************************************************
 383  *           do_relocations
 384  *
 385  * Apply the relocations to a mapped PE image
 386  */
 387 static int do_relocations( char *base, const IMAGE_NT_HEADERS *nt, const char *filename )
 388 {
 389     const IMAGE_DATA_DIRECTORY *dir;
 390     const IMAGE_BASE_RELOCATION *rel;
 391     int delta = base - (char *)nt->OptionalHeader.ImageBase;
 392
 393     dir = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 394     rel = (IMAGE_BASE_RELOCATION *)(base + dir->VirtualAddress);
 395
 396     WARN("Info: base relocations needed for %s\n", filename);
 397     if (!dir->VirtualAddress || !dir->Size)
 398     {
 399         if (nt->OptionalHeader.ImageBase == 0x400000)
 400             ERR("Standard load address for a Win32 program (0x00400000) not available - security-patched kernel ?\n");
 401         ERR( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 402              filename,
 403              (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 404              "stripped during link" : "unknown reason" );
 405         return 0;
 406     }
 407
 408     /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
 409      *        really make sure that the *new* base address is also > 2GB.
 410      *        Some DLLs really check the MSB of the module handle :-/
 411      */
 412     if ((nt->OptionalHeader.ImageBase & 0x80000000) && !((DWORD)base & 0x80000000))
 413         ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
 414
 415     for ( ; ((char *)rel < base + dir->VirtualAddress + dir->Size) && rel->SizeOfBlock;
 416           rel = (IMAGE_BASE_RELOCATION*)((char*)rel + rel->SizeOfBlock))
 417     {
 418         char *page = base + rel->VirtualAddress;
 419         WORD *TypeOffset = (WORD *)(rel + 1);
 420         int i, count = (rel->SizeOfBlock - sizeof(*rel)) / sizeof(*TypeOffset);
 421
 422         if (!count) continue;
 423
 424         /* sanity checks */
 425         if ((char *)rel + rel->SizeOfBlock > base + dir->VirtualAddress + dir->Size ||
 426             page > base + nt->OptionalHeader.SizeOfImage)
 427         {
 428             ERR_(module)("invalid relocation %p,%lx,%ld at %p,%lx,%lx\n",
 429                          rel, rel->VirtualAddress, rel->SizeOfBlock,
 430                          base, dir->VirtualAddress, dir->Size );
 431             return 0;
 432         }
 433
 434         TRACE_(module)("%ld relocations for page %lx\n", rel->SizeOfBlock, rel->VirtualAddress);
 435
 436         /* patching in reverse order */
 437         for (i = 0 ; i < count; i++)
 438         {
 439             int offset = TypeOffset[i] & 0xFFF;
 440             int type = TypeOffset[i] >> 12;
 441             switch(type)
 442             {
 443             case IMAGE_REL_BASED_ABSOLUTE:
 444                 break;
 445             case IMAGE_REL_BASED_HIGH:
 446                 *(short*)(page+offset) += HIWORD(delta);
 447                 break;
 448             case IMAGE_REL_BASED_LOW:
 449                 *(short*)(page+offset) += LOWORD(delta);
 450                 break;
 451             case IMAGE_REL_BASED_HIGHLOW:
 452                 *(int*)(page+offset) += delta;
 453                 /* FIXME: if this is an exported address, fire up enhanced logic */
 454                 break;
 455             default:
 456                 FIXME_(module)("Unknown/unsupported fixup type %d.\n", type);
 457                 break;
 458             }
 459         }
 460     }
 461     return 1;
 462 }
 463
 464
 465 /**********************************************************************
 466  *                      PE_LoadImage
 467  * Load one PE format DLL/EXE into memory
 468  *
 469  * Unluckily we can't just mmap the sections where we want them, for
 470  * (at least) Linux does only support offsets which are page-aligned.
 471  *
 472  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 473  * want to access them. (HMODULE points to the start of it)
 474  */
 475 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 476 {
 477     IMAGE_NT_HEADERS *nt;
 478     HMODULE hModule;
 479     HANDLE mapping;
 480     void *base;
 481
 482     TRACE_(module)( "loading %s\n", filename );
 483
 484     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 485     if (!mapping) return 0;
 486     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 487     CloseHandle( mapping );
 488     if (!base) return 0;
 489
 490     hModule = (HMODULE)base;
 491
 492     /* perform base relocation, if necessary */
 493
 494     nt = PE_HEADER( hModule );
 495     if (hModule != nt->OptionalHeader.ImageBase)
 496     {
 497         if (!do_relocations( base, nt, filename ))
 498         {
 499             UnmapViewOfFile( base );
 500             SetLastError( ERROR_BAD_EXE_FORMAT );
 501             return 0;
 502         }
 503     }
 504
 505     /* virus check */
 506
 507     if (nt->OptionalHeader.AddressOfEntryPoint)
 508     {
 509         int i;
 510         IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader +
 511                                                             nt->FileHeader.SizeOfOptionalHeader);
 512         for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
 513         {
 514             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress)
 515                 continue;
 516             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress+sec->SizeOfRawData)
 517                 break;
 518         }
 519         if (i == nt->FileHeader.NumberOfSections)
 520             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 521                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 522                     nt->OptionalHeader.AddressOfEntryPoint );
 523     }
 524
 525     return hModule;
 526 }
 527
 528 /**********************************************************************
 529  *                 PE_CreateModule
 530  *
 531  * Create WINE_MODREF structure for loaded HMODULE32, link it into
 532  * process modref_list, and fixup all imports.
 533  *
 534  * Note: hModule must point to a correctly allocated PE image,
 535  *       with base relocations applied; the 16-bit dummy module
 536  *       associated to hModule must already exist.
 537  *
 538  * Note: This routine must always be called in the context of the
 539  *       process that is to own the module to be created.
 540  *
 541  * Note: Assumes that the process critical section is held
 542  */
 543 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 544                               HANDLE hFile, BOOL builtin )
 545 {
 546     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 547     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 548     IMAGE_DATA_DIRECTORY *dir;
 549     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 550     WINE_MODREF *wm;
 551     HMODULE16 hModule16;
 552
 553     /* Retrieve DataDirectory entries */
 554
 555     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 556     if (dir->Size)
 557         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 558
 559     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 560     if (dir->Size) FIXME("Exception directory ignored\n" );
 561
 562     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 563     if (dir->Size) FIXME("Security directory ignored\n" );
 564
 565     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 566     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 567
 568     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 569     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 570
 571     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 572
 573     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 574     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 575
 576     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 577     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 578
 579     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 580     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 581
 582     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 583     if (dir->Size)
 584     {
 585                 TRACE("Delayed import, stub calls LoadLibrary\n" );
 586                 /*
 587                  * Nothing to do here.
 588                  */
 589
 590 #ifdef ImgDelayDescr
 591                 /*
 592                  * This code is useful to observe what the heck is going on.
 593                  */
 594                 {
 595                 ImgDelayDescr *pe_delay = NULL;
 596         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 597         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 598         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 599         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 600         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 601         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 602         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 603         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 604         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 605         }
 606 #endif /* ImgDelayDescr */
 607         }
 608
 609     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 610     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 611
 612     dir = nt->OptionalHeader.DataDirectory+15;
 613     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 614
 615     /* Create 16-bit dummy module */
 616
 617     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 618     {
 619         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 620         return NULL;
 621     }
 622
 623     /* Allocate and fill WINE_MODREF */
 624
 625     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 626     {
 627         FreeLibrary16( hModule16 );
 628         return NULL;
 629     }
 630     wm->hDummyMod = hModule16;
 631
 632     if ( builtin )
 633     {
 634         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 635         pModule->flags |= NE_FFLAGS_BUILTIN;
 636         wm->flags |= WINE_MODREF_INTERNAL;
 637     }
 638     else if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 639         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 640
 641     wm->find_export = PE_FindExportedFunction;
 642
 643     /* Dump Exports */
 644
 645     if ( pe_export )
 646         dump_exports( hModule );
 647
 648     /* Fixup Imports */
 649
 650     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
 651         PE_fixup_imports( wm ))
 652     {
 653         /* remove entry from modref chain */
 654
 655         if ( !wm->prev )
 656             MODULE_modref_list = wm->next;
 657         else
 658             wm->prev->next = wm->next;
 659
 660         if ( wm->next ) wm->next->prev = wm->prev;
 661         wm->next = wm->prev = NULL;
 662
 663         /* FIXME: there are several more dangling references
 664          * left. Including dlls loaded by this dll before the
 665          * failed one. Unrolling is rather difficult with the
 666          * current structure and we can leave it them lying
 667          * around with no problems, so we don't care.
 668          * As these might reference our wm, we don't free it.
 669          */
 670          return NULL;
 671     }
 672
 673     if (!builtin && pe_export)
 674         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 675
 676     /* Send DLL load event */
 677     /* we don't need to send a dll event for the main exe */
 678
 679     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 680     {
 681         if (hFile)
 682         {
 683             UINT drive_type = GetDriveTypeA( wm->short_filename );
 684             /* don't keep the file handle open on removable media */
 685             if (drive_type == DRIVE_REMOVABLE || drive_type == DRIVE_CDROM) hFile = 0;
 686         }
 687         SERVER_START_REQ( load_dll )
 688         {
 689             req->handle     = hFile;
 690             req->base       = (void *)hModule;
 691             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 692             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 693             req->name       = &wm->filename;
 694             wine_server_call( req );
 695         }
 696         SERVER_END_REQ;
 697     }
 698
 699     return wm;
 700 }
 701
 702 /******************************************************************************
 703  * The PE Library Loader frontend.
 704  * FIXME: handle the flags.
 705  */
 706 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 707 {
 708         HMODULE         hModule32;
 709         WINE_MODREF     *wm;
 710         HANDLE          hFile;
 711
 712         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 713                              NULL, OPEN_EXISTING, 0, 0 );
 714         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 715
 716         /* Load PE module */
 717         hModule32 = PE_LoadImage( hFile, name, flags );
 718         if (!hModule32)
 719         {
 720                 CloseHandle( hFile );
 721                 return NULL;
 722         }
 723
 724         /* Create 32-bit MODREF */
 725         if ( !(wm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) )
 726         {
 727                 ERR( "can't load %s\n", name );
 728                 CloseHandle( hFile );
 729                 SetLastError( ERROR_OUTOFMEMORY );
 730                 return NULL;
 731         }
 732
 733         CloseHandle( hFile );
 734         return wm;
 735 }
 736
 737
 738 /* Called if the library is loaded or freed.
 739  * NOTE: if a thread attaches a DLL, the current thread will only do
 740  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 741  * (SDK)
 742  */
 743 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 744
 745 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 746 {
 747     BOOL retv = TRUE;
 748     IMAGE_NT_HEADERS *nt = PE_HEADER(module);
 749
 750     /* Is this a library? And has it got an entrypoint? */
 751     if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 752         (nt->OptionalHeader.AddressOfEntryPoint))
 753     {
 754         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 755         if (TRACE_ON(relay))
 756             DPRINTF("%08lx:Call PE DLL (proc=%p,module=%08x,type=%ld,res=%p)\n",
 757                     GetCurrentThreadId(), entry, module, type, lpReserved );
 758         retv = entry( module, type, lpReserved );
 759         if (TRACE_ON(relay))
 760             DPRINTF("%08lx:Ret  PE DLL (proc=%p,module=%08x,type=%ld,res=%p) retval=%x\n",
 761                     GetCurrentThreadId(), entry, module, type, lpReserved, retv );
 762     }
 763
 764     return retv;
 765 }
 766
 767 /************************************************************************
 768  *      PE_InitTls                      (internal)
 769  *
 770  * If included, initialises the thread local storages of modules.
 771  * Pointers in those structs are not RVAs but real pointers which have been
 772  * relocated by do_relocations() already.
 773  */
 774 static LPVOID
 775 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 776         if (    ((DWORD)addr>opt->ImageBase) &&
 777                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 778         )
 779                 /* the address has not been relocated! */
 780                 return (LPVOID)(((DWORD)addr)+delta);
 781         else
 782                 /* the address has been relocated already */
 783                 return addr;
 784 }
 785 void PE_InitTls( void )
 786 {
 787         WINE_MODREF             *wm;
 788         IMAGE_NT_HEADERS        *peh;
 789         DWORD                   size,datasize;
 790         LPVOID                  mem;
 791         PIMAGE_TLS_DIRECTORY    pdir;
 792         int delta;
 793
 794         for (wm = MODULE_modref_list;wm;wm=wm->next) {
 795                 peh = PE_HEADER(wm->module);
 796                 delta = wm->module - peh->OptionalHeader.ImageBase;
 797                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 798                         continue;
 799                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 800                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 801
 802
 803                 if ( wm->tlsindex == -1 ) {
 804                         LPDWORD xaddr;
 805                         wm->tlsindex = TlsAlloc();
 806                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 807                                         pdir->AddressOfIndex
 808                         );
 809                         *xaddr=wm->tlsindex;
 810                 }
 811                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 812                 size    = datasize + pdir->SizeOfZeroFill;
 813                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 814                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 815                 if (pdir->AddressOfCallBacks) {
 816                      PIMAGE_TLS_CALLBACK *cbs;
 817
 818                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 819                      if (*cbs)
 820                        FIXME("TLS Callbacks aren't going to be called\n");
 821                 }
 822
 823                 TlsSetValue( wm->tlsindex, mem );
 824         }
 825 }
 826