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  */
  25
  26 #include "config.h"
  27
  28 #include <sys/types.h>
  29 #ifdef HAVE_SYS_MMAN_H
  30 #include <sys/mman.h>
  31 #endif
  32 #include "wine/winbase16.h"
  33 #include "winerror.h"
  34 #include "neexe.h"
  35 #include "process.h"
  36 #include "snoop.h"
  37 #include "server.h"
  38 #include "debugtools.h"
  39
  40 DEFAULT_DEBUG_CHANNEL(win32);
  41 DECLARE_DEBUG_CHANNEL(delayhlp);
  42 DECLARE_DEBUG_CHANNEL(fixup);
  43 DECLARE_DEBUG_CHANNEL(module);
  44 DECLARE_DEBUG_CHANNEL(relay);
  45 DECLARE_DEBUG_CHANNEL(segment);
  46
  47
  48 static IMAGE_EXPORT_DIRECTORY *get_exports( HMODULE hmod )
  49 {
  50     IMAGE_EXPORT_DIRECTORY *ret = NULL;
  51     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  52                                 + IMAGE_DIRECTORY_ENTRY_EXPORT;
  53     if (dir->Size && dir->VirtualAddress)
  54         ret = (IMAGE_EXPORT_DIRECTORY *)((char *)hmod + dir->VirtualAddress);
  55     return ret;
  56 }
  57
  58 static IMAGE_IMPORT_DESCRIPTOR *get_imports( HMODULE hmod )
  59 {
  60     IMAGE_IMPORT_DESCRIPTOR *ret = NULL;
  61     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  62                                 + IMAGE_DIRECTORY_ENTRY_IMPORT;
  63     if (dir->Size && dir->VirtualAddress)
  64         ret = (IMAGE_IMPORT_DESCRIPTOR *)((char *)hmod + dir->VirtualAddress);
  65     return ret;
  66 }
  67
  68
  69 /* convert PE image VirtualAddress to Real Address */
  70 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
  71
  72 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  73
  74 void dump_exports( HMODULE hModule )
  75 {
  76   char          *Module;
  77   int           i, j;
  78   u_short       *ordinal;
  79   u_long        *function,*functions;
  80   u_char        **name;
  81   unsigned int load_addr = hModule;
  82
  83   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  84                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
  85   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
  86                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
  87   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
  88
  89   Module = (char*)RVA(pe_exports->Name);
  90   TRACE("*******EXPORT DATA*******\n");
  91   TRACE("Module name is %s, %ld functions, %ld names\n",
  92         Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
  93
  94   ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
  95   functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
  96   name=(u_char**) RVA(pe_exports->AddressOfNames);
  97
  98   TRACE(" Ord    RVA     Addr   Name\n" );
  99   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
 100   {
 101       if (!*function) continue;  /* No such function */
 102       if (TRACE_ON(win32))
 103       {
 104         DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
 105         /* Check if we have a name for it */
 106         for (j = 0; j < pe_exports->NumberOfNames; j++)
 107           if (ordinal[j] == i)
 108           {
 109               DPRINTF( "  %s", (char*)RVA(name[j]) );
 110               break;
 111           }
 112         if ((*function >= rva_start) && (*function <= rva_end))
 113           DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
 114         DPRINTF("\n");
 115       }
 116   }
 117 }
 118
 119 /* Look up the specified function or ordinal in the exportlist:
 120  * If it is a string:
 121  *      - look up the name in the Name list.
 122  *      - look up the ordinal with that index.
 123  *      - use the ordinal as offset into the functionlist
 124  * If it is a ordinal:
 125  *      - use ordinal-pe_export->Base as offset into the functionlist
 126  */
 127 static FARPROC PE_FindExportedFunction(
 128         WINE_MODREF *wm,        /* [in] WINE modreference */
 129         LPCSTR funcName,        /* [in] function name */
 130         BOOL snoop )
 131 {
 132         u_short                         * ordinals;
 133         u_long                          * function;
 134         u_char                          ** name, *ename = NULL;
 135         int                             i, ordinal;
 136         unsigned int                    load_addr = wm->module;
 137         u_long                          rva_start, rva_end, addr;
 138         char                            * forward;
 139         IMAGE_EXPORT_DIRECTORY *exports = get_exports(wm->module);
 140
 141         if (HIWORD(funcName))
 142                 TRACE("(%s)\n",funcName);
 143         else
 144                 TRACE("(%d)\n",(int)funcName);
 145         if (!exports) {
 146                 /* Not a fatal problem, some apps do
 147                  * GetProcAddress(0,"RegisterPenApp") which triggers this
 148                  * case.
 149                  */
 150                 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,wm);
 151                 return NULL;
 152         }
 153         ordinals= (u_short*)  RVA(exports->AddressOfNameOrdinals);
 154         function= (u_long*)   RVA(exports->AddressOfFunctions);
 155         name    = (u_char **) RVA(exports->AddressOfNames);
 156         forward = NULL;
 157         rva_start = PE_HEADER(wm->module)->OptionalHeader
 158                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 159         rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
 160                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 161
 162         if (HIWORD(funcName))
 163         {
 164             /* first try a binary search */
 165             int min = 0, max = exports->NumberOfNames - 1;
 166             while (min <= max)
 167             {
 168                 int res, pos = (min + max) / 2;
 169                 ename = RVA(name[pos]);
 170                 if (!(res = strcmp( ename, funcName )))
 171                 {
 172                     ordinal = ordinals[pos];
 173                     goto found;
 174                 }
 175                 if (res > 0) max = pos - 1;
 176                 else min = pos + 1;
 177             }
 178             /* now try a linear search in case the names aren't sorted properly */
 179             for (i = 0; i < exports->NumberOfNames; i++)
 180             {
 181                 ename = RVA(name[i]);
 182                 if (!strcmp( ename, funcName ))
 183                 {
 184                     ERR( "%s.%s required a linear search\n", wm->modname, funcName );
 185                     ordinal = ordinals[i];
 186                     goto found;
 187                 }
 188             }
 189             return NULL;
 190         }
 191         else  /* find by ordinal */
 192         {
 193             ordinal = LOWORD(funcName) - exports->Base;
 194             if (snoop && name)  /* need to find a name for it */
 195             {
 196                 for (i = 0; i < exports->NumberOfNames; i++)
 197                     if (ordinals[i] == ordinal)
 198                     {
 199                         ename = RVA(name[i]);
 200                         break;
 201                     }
 202             }
 203         }
 204
 205  found:
 206         if (ordinal >= exports->NumberOfFunctions)
 207         {
 208             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 209             return NULL;
 210         }
 211         addr = function[ordinal];
 212         if (!addr) return NULL;
 213         if ((addr < rva_start) || (addr >= rva_end))
 214         {
 215             FARPROC proc = RVA(addr);
 216             if (snoop)
 217             {
 218                 if (!ename) ename = "@";
 219                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 220             }
 221             return proc;
 222         }
 223         else  /* forward entry point */
 224         {
 225                 WINE_MODREF *wm;
 226                 FARPROC proc;
 227                 char *forward = RVA(addr);
 228                 char module[256];
 229                 char *end = strchr(forward, '.');
 230
 231                 if (!end) return NULL;
 232                 if (end - forward >= sizeof(module)) return NULL;
 233                 memcpy( module, forward, end - forward );
 234                 module[end-forward] = 0;
 235                 if (!(wm = MODULE_FindModule( module )))
 236                 {
 237                     ERR("module not found for forward '%s'\n", forward );
 238                     return NULL;
 239                 }
 240                 if (!(proc = MODULE_GetProcAddress( wm->module, end + 1, snoop )))
 241                     ERR("function not found for forward '%s'\n", forward );
 242                 return proc;
 243         }
 244 }
 245
 246 DWORD fixup_imports( WINE_MODREF *wm )
 247 {
 248     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 249     unsigned int load_addr      = wm->module;
 250     int                         i,characteristics_detection=1;
 251     char                        *modname;
 252     IMAGE_EXPORT_DIRECTORY *exports = get_exports(wm->module);
 253     IMAGE_IMPORT_DESCRIPTOR *imports = get_imports(wm->module);
 254
 255     if (exports)
 256         modname = (char*) RVA(exports->Name);
 257     else
 258         modname = "<unknown>";
 259
 260     /* first, count the number of imported non-internal modules */
 261     pe_imp = imports;
 262     if (!pe_imp) return 0;
 263
 264     /* OK, now dump the import list */
 265     TRACE("Dumping imports list\n");
 266
 267     /* We assume that we have at least one import with !0 characteristics and
 268      * detect broken imports with all characteristics 0 (notably Borland) and
 269      * switch the detection off for them.
 270      */
 271     for (i = 0; pe_imp->Name ; pe_imp++) {
 272         if (!i && !pe_imp->u.Characteristics)
 273                 characteristics_detection = 0;
 274         if (characteristics_detection && !pe_imp->u.Characteristics)
 275                 break;
 276         i++;
 277     }
 278     if (!i) return 0;  /* no imports */
 279
 280     /* Allocate module dependency list */
 281     wm->nDeps = i;
 282     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 283
 284     /* load the imported modules. They are automatically
 285      * added to the modref list of the process.
 286      */
 287
 288     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 289         WINE_MODREF             *wmImp;
 290         IMAGE_IMPORT_BY_NAME    *pe_name;
 291         PIMAGE_THUNK_DATA       import_list,thunk_list;
 292         char                    *name = (char *) RVA(pe_imp->Name);
 293
 294         if (characteristics_detection && !pe_imp->u.Characteristics)
 295                 break;
 296
 297         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 298         if (!wmImp) {
 299             ERR_(module)("Module (file) %s needed by %s not found\n", name, wm->filename);
 300             return 1;
 301         }
 302         wm->deps[i++] = wmImp;
 303
 304         /* FIXME: forwarder entries ... */
 305
 306         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 307             TRACE("Microsoft style imports used\n");
 308             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 309             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 310
 311             while (import_list->u1.Ordinal) {
 312                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 313                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 314
 315                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 316                     thunk_list->u1.Function=MODULE_GetProcAddress(
 317                         wmImp->module, (LPCSTR)ordinal, TRUE
 318                     );
 319                     if (!thunk_list->u1.Function) {
 320                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 321                                 name, ordinal);
 322                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 323                     }
 324                 } else {                /* import by name */
 325                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 326                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 327                     thunk_list->u1.Function=MODULE_GetProcAddress(
 328                         wmImp->module, pe_name->Name, TRUE
 329                     );
 330                     if (!thunk_list->u1.Function) {
 331                         ERR("No implementation for %s.%d(%s), setting to 0xdeadbeef\n",
 332                                 name,pe_name->Hint,pe_name->Name);
 333                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 334                     }
 335                 }
 336                 import_list++;
 337                 thunk_list++;
 338             }
 339         } else {        /* Borland style */
 340             TRACE("Borland style imports used\n");
 341             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 342             while (thunk_list->u1.Ordinal) {
 343                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 344                     /* not sure about this branch, but it seems to work */
 345                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 346
 347                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 348                     thunk_list->u1.Function=MODULE_GetProcAddress(
 349                         wmImp->module, (LPCSTR) ordinal, TRUE
 350                     );
 351                     if (!thunk_list->u1.Function) {
 352                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 353                                 name,ordinal);
 354                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 355                     }
 356                 } else {
 357                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 358                     TRACE("--- %s %s.%d\n",
 359                                   pe_name->Name,name,pe_name->Hint);
 360                     thunk_list->u1.Function=MODULE_GetProcAddress(
 361                         wmImp->module, pe_name->Name, TRUE
 362                     );
 363                     if (!thunk_list->u1.Function) {
 364                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 365                                 name, pe_name->Hint);
 366                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 367                     }
 368                 }
 369                 thunk_list++;
 370             }
 371         }
 372     }
 373     return 0;
 374 }
 375
 376 /***********************************************************************
 377  *           do_relocations
 378  *
 379  * Apply the relocations to a mapped PE image
 380  */
 381 static int do_relocations( char *base, const IMAGE_NT_HEADERS *nt, const char *filename )
 382 {
 383     const IMAGE_DATA_DIRECTORY *dir;
 384     const IMAGE_BASE_RELOCATION *rel;
 385     int delta = base - (char *)nt->OptionalHeader.ImageBase;
 386
 387     dir = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 388     rel = (IMAGE_BASE_RELOCATION *)(base + dir->VirtualAddress);
 389
 390     WARN("Info: base relocations needed for %s\n", filename);
 391     if (!dir->VirtualAddress || !dir->Size)
 392     {
 393         if (nt->OptionalHeader.ImageBase == 0x400000)
 394             ERR("Standard load address for a Win32 program not available - patched kernel ?\n");
 395         ERR( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 396              filename,
 397              (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 398              "stripped during link" : "unknown reason" );
 399         return 0;
 400     }
 401
 402     /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
 403      *        really make sure that the *new* base address is also > 2GB.
 404      *        Some DLLs really check the MSB of the module handle :-/
 405      */
 406     if ((nt->OptionalHeader.ImageBase & 0x80000000) && !((DWORD)base & 0x80000000))
 407         ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
 408
 409     for ( ; ((char *)rel < base + dir->VirtualAddress + dir->Size) && rel->VirtualAddress;
 410           rel = (IMAGE_BASE_RELOCATION*)((char*)rel + rel->SizeOfBlock))
 411     {
 412         char *page = base + rel->VirtualAddress;
 413         int i, count = (rel->SizeOfBlock - 8) / sizeof(rel->TypeOffset);
 414
 415         if (!count) continue;
 416
 417         /* sanity checks */
 418         if ((char *)rel + rel->SizeOfBlock > base + dir->VirtualAddress + dir->Size ||
 419             page > base + nt->OptionalHeader.SizeOfImage)
 420         {
 421             ERR_(module)("invalid relocation %p,%lx,%ld at %p,%lx,%lx\n",
 422                          rel, rel->VirtualAddress, rel->SizeOfBlock,
 423                          base, dir->VirtualAddress, dir->Size );
 424             return 0;
 425         }
 426
 427         TRACE_(module)("%ld relocations for page %lx\n", rel->SizeOfBlock, rel->VirtualAddress);
 428
 429         /* patching in reverse order */
 430         for (i = 0 ; i < count; i++)
 431         {
 432             int offset = rel->TypeOffset[i] & 0xFFF;
 433             int type = rel->TypeOffset[i] >> 12;
 434             switch(type)
 435             {
 436             case IMAGE_REL_BASED_ABSOLUTE:
 437                 break;
 438             case IMAGE_REL_BASED_HIGH:
 439                 *(short*)(page+offset) += HIWORD(delta);
 440                 break;
 441             case IMAGE_REL_BASED_LOW:
 442                 *(short*)(page+offset) += LOWORD(delta);
 443                 break;
 444             case IMAGE_REL_BASED_HIGHLOW:
 445                 *(int*)(page+offset) += delta;
 446                 /* FIXME: if this is an exported address, fire up enhanced logic */
 447                 break;
 448             default:
 449                 FIXME_(module)("Unknown/unsupported fixup type %d.\n", type);
 450                 break;
 451             }
 452         }
 453     }
 454     return 1;
 455 }
 456
 457
 458 /**********************************************************************
 459  *                      PE_LoadImage
 460  * Load one PE format DLL/EXE into memory
 461  *
 462  * Unluckily we can't just mmap the sections where we want them, for
 463  * (at least) Linux does only support offsets which are page-aligned.
 464  *
 465  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 466  * want to access them. (HMODULE32 point to the start of it)
 467  */
 468 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 469 {
 470     IMAGE_NT_HEADERS *nt;
 471     HMODULE hModule;
 472     HANDLE mapping;
 473     void *base;
 474
 475     TRACE_(module)( "loading %s\n", filename );
 476
 477     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 478     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 479     CloseHandle( mapping );
 480     if (!base) return 0;
 481
 482     hModule = (HMODULE)base;
 483     if (flags & LOAD_LIBRARY_AS_DATAFILE) return hModule;  /* nothing else to do */
 484
 485     /* perform base relocation, if necessary */
 486
 487     nt = PE_HEADER( hModule );
 488     if (hModule != nt->OptionalHeader.ImageBase)
 489     {
 490         if (!do_relocations( base, nt, filename ))
 491         {
 492             UnmapViewOfFile( base );
 493             SetLastError( ERROR_BAD_EXE_FORMAT );
 494             return 0;
 495         }
 496     }
 497
 498     /* virus check */
 499
 500     if (nt->OptionalHeader.AddressOfEntryPoint)
 501     {
 502         int i;
 503         IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader +
 504                                                             nt->FileHeader.SizeOfOptionalHeader);
 505         for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
 506         {
 507             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress)
 508                 continue;
 509             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress+sec->SizeOfRawData)
 510                 break;
 511         }
 512         if (i == nt->FileHeader.NumberOfSections)
 513             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 514                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 515                     nt->OptionalHeader.AddressOfEntryPoint );
 516     }
 517
 518     return hModule;
 519 }
 520
 521 /**********************************************************************
 522  *                 PE_CreateModule
 523  *
 524  * Create WINE_MODREF structure for loaded HMODULE32, link it into
 525  * process modref_list, and fixup all imports.
 526  *
 527  * Note: hModule must point to a correctly allocated PE image,
 528  *       with base relocations applied; the 16-bit dummy module
 529  *       associated to hModule must already exist.
 530  *
 531  * Note: This routine must always be called in the context of the
 532  *       process that is to own the module to be created.
 533  *
 534  * Note: Assumes that the process critical section is held
 535  */
 536 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 537                               HFILE hFile, BOOL builtin )
 538 {
 539     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 540     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 541     IMAGE_DATA_DIRECTORY *dir;
 542     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 543     WINE_MODREF *wm;
 544     HMODULE16 hModule16;
 545
 546     /* Retrieve DataDirectory entries */
 547
 548     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 549     if (dir->Size)
 550         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 551
 552     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 553     if (dir->Size) FIXME("Exception directory ignored\n" );
 554
 555     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 556     if (dir->Size) FIXME("Security directory ignored\n" );
 557
 558     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 559     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 560
 561     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 562     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 563
 564     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 565
 566     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 567     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 568
 569     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 570     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 571
 572     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 573     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 574
 575     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 576     if (dir->Size)
 577     {
 578                 TRACE("Delayed import, stub calls LoadLibrary\n" );
 579                 /*
 580                  * Nothing to do here.
 581                  */
 582
 583 #ifdef ImgDelayDescr
 584                 /*
 585                  * This code is useful to observe what the heck is going on.
 586                  */
 587                 {
 588                 ImgDelayDescr *pe_delay = NULL;
 589         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 590         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 591         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 592         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 593         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 594         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 595         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 596         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 597         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 598         }
 599 #endif /* ImgDelayDescr */
 600         }
 601
 602     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 603     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 604
 605     dir = nt->OptionalHeader.DataDirectory+15;
 606     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 607
 608     /* Create 16-bit dummy module */
 609
 610     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 611     {
 612         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 613         return NULL;
 614     }
 615
 616     /* Allocate and fill WINE_MODREF */
 617
 618     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 619     {
 620         FreeLibrary16( hModule16 );
 621         return NULL;
 622     }
 623
 624     if ( builtin )
 625     {
 626         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 627         pModule->flags |= NE_FFLAGS_BUILTIN;
 628         wm->flags |= WINE_MODREF_INTERNAL;
 629     }
 630
 631     if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 632         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 633
 634     wm->find_export = PE_FindExportedFunction;
 635
 636     /* Dump Exports */
 637
 638     if ( pe_export )
 639         dump_exports( hModule );
 640
 641     /* The exe_modref must be in place, before implicit linked DLLs are loaded
 642        by fixup_imports, otherwhise GetModuleFileName will not work and modules
 643        in the executables directory can not be found */
 644
 645     if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
 646     {
 647       if ( PROCESS_Current()->exe_modref )
 648         FIXME( "Trying to load second .EXE file: %s\n", filename );
 649       else
 650       {
 651         PROCESS_Current()->exe_modref = wm;
 652         PROCESS_Current()->module = wm->module;
 653       }
 654     }
 655
 656     /* Fixup Imports */
 657
 658     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) && fixup_imports( wm ))
 659     {
 660         /* remove entry from modref chain */
 661
 662         if ( !wm->prev )
 663             PROCESS_Current()->modref_list = wm->next;
 664         else
 665             wm->prev->next = wm->next;
 666
 667         if ( wm->next ) wm->next->prev = wm->prev;
 668         wm->next = wm->prev = NULL;
 669
 670         /* FIXME: there are several more dangling references
 671          * left. Including dlls loaded by this dll before the
 672          * failed one. Unrolling is rather difficult with the
 673          * current structure and we can leave it them lying
 674          * around with no problems, so we don't care.
 675          * As these might reference our wm, we don't free it.
 676          */
 677          return NULL;
 678     }
 679
 680     if (pe_export)
 681         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->NumberOfFunctions );
 682
 683     /* Send DLL load event */
 684     /* we don't need to send a dll event for the main exe */
 685
 686     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 687     {
 688         SERVER_START_REQ
 689         {
 690             struct load_dll_request *req = server_alloc_req( sizeof(*req), 0 );
 691             req->handle     = hFile;
 692             req->base       = (void *)hModule;
 693             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 694             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 695             req->name       = &wm->filename;
 696             server_call_noerr( REQ_LOAD_DLL );
 697         }
 698         SERVER_END_REQ;
 699     }
 700
 701     return wm;
 702 }
 703
 704 /******************************************************************************
 705  * The PE Library Loader frontend.
 706  * FIXME: handle the flags.
 707  */
 708 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 709 {
 710         HMODULE         hModule32;
 711         WINE_MODREF     *wm;
 712         HANDLE          hFile;
 713
 714         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 715                              NULL, OPEN_EXISTING, 0, -1 );
 716         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 717
 718         /* Load PE module */
 719         hModule32 = PE_LoadImage( hFile, name, flags );
 720         if (!hModule32)
 721         {
 722                 CloseHandle( hFile );
 723                 return NULL;
 724         }
 725
 726         /* Create 32-bit MODREF */
 727         if ( !(wm = PE_CreateModule( hModule32, name, flags, -1, FALSE )) )
 728         {
 729                 ERR( "can't load %s\n", name );
 730                 CloseHandle( hFile );
 731                 SetLastError( ERROR_OUTOFMEMORY );
 732                 return NULL;
 733         }
 734
 735         CloseHandle( hFile );
 736         return wm;
 737 }
 738
 739
 740 /* Called if the library is loaded or freed.
 741  * NOTE: if a thread attaches a DLL, the current thread will only do
 742  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 743  * (SDK)
 744  */
 745 typedef DWORD CALLBACK(*DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 746
 747 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 748 {
 749     BOOL retv = TRUE;
 750     IMAGE_NT_HEADERS *nt = PE_HEADER(module);
 751
 752     /* Is this a library? And has it got an entrypoint? */
 753     if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 754         (nt->OptionalHeader.AddressOfEntryPoint))
 755     {
 756         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 757         TRACE_(relay)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 758                        entry, module, type, lpReserved );
 759
 760         retv = entry( module, type, lpReserved );
 761     }
 762
 763     return retv;
 764 }
 765
 766 /************************************************************************
 767  *      PE_InitTls                      (internal)
 768  *
 769  * If included, initialises the thread local storages of modules.
 770  * Pointers in those structs are not RVAs but real pointers which have been
 771  * relocated by do_relocations() already.
 772  */
 773 static LPVOID
 774 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 775         if (    ((DWORD)addr>opt->ImageBase) &&
 776                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 777         )
 778                 /* the address has not been relocated! */
 779                 return (LPVOID)(((DWORD)addr)+delta);
 780         else
 781                 /* the address has been relocated already */
 782                 return addr;
 783 }
 784 void PE_InitTls( void )
 785 {
 786         WINE_MODREF             *wm;
 787         IMAGE_NT_HEADERS        *peh;
 788         DWORD                   size,datasize;
 789         LPVOID                  mem;
 790         PIMAGE_TLS_DIRECTORY    pdir;
 791         int delta;
 792
 793         for (wm = PROCESS_Current()->modref_list;wm;wm=wm->next) {
 794                 peh = PE_HEADER(wm->module);
 795                 delta = wm->module - peh->OptionalHeader.ImageBase;
 796                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 797                         continue;
 798                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 799                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 800
 801
 802                 if ( wm->tlsindex == -1 ) {
 803                         LPDWORD xaddr;
 804                         wm->tlsindex = TlsAlloc();
 805                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 806                                         pdir->AddressOfIndex
 807                         );
 808                         *xaddr=wm->tlsindex;
 809                 }
 810                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 811                 size    = datasize + pdir->SizeOfZeroFill;
 812                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 813                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 814                 if (pdir->AddressOfCallBacks) {
 815                      PIMAGE_TLS_CALLBACK *cbs;
 816
 817                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 818                      if (*cbs)
 819                        FIXME("TLS Callbacks aren't going to be called\n");
 820                 }
 821
 822                 TlsSetValue( wm->tlsindex, mem );
 823         }
 824 }
 825