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 <errno.h>
  29 #include <assert.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <unistd.h>
  33 #include <sys/types.h>
  34 #include <sys/stat.h>
  35 #ifdef HAVE_SYS_MMAN_H
  36 #include <sys/mman.h>
  37 #endif
  38 #include "windef.h"
  39 #include "winbase.h"
  40 #include "wine/winbase16.h"
  41 #include "winerror.h"
  42 #include "callback.h"
  43 #include "file.h"
  44 #include "heap.h"
  45 #include "neexe.h"
  46 #include "process.h"
  47 #include "thread.h"
  48 #include "module.h"
  49 #include "global.h"
  50 #include "task.h"
  51 #include "snoop.h"
  52 #include "server.h"
  53 #include "debugtools.h"
  54
  55 DEFAULT_DEBUG_CHANNEL(win32);
  56 DECLARE_DEBUG_CHANNEL(delayhlp);
  57 DECLARE_DEBUG_CHANNEL(fixup);
  58 DECLARE_DEBUG_CHANNEL(module);
  59 DECLARE_DEBUG_CHANNEL(relay);
  60 DECLARE_DEBUG_CHANNEL(segment);
  61
  62
  63 static IMAGE_EXPORT_DIRECTORY *get_exports( HMODULE hmod )
  64 {
  65     IMAGE_EXPORT_DIRECTORY *ret = NULL;
  66     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  67                                 + IMAGE_DIRECTORY_ENTRY_EXPORT;
  68     if (dir->Size && dir->VirtualAddress)
  69         ret = (IMAGE_EXPORT_DIRECTORY *)((char *)hmod + dir->VirtualAddress);
  70     return ret;
  71 }
  72
  73 static IMAGE_IMPORT_DESCRIPTOR *get_imports( HMODULE hmod )
  74 {
  75     IMAGE_IMPORT_DESCRIPTOR *ret = NULL;
  76     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  77                                 + IMAGE_DIRECTORY_ENTRY_IMPORT;
  78     if (dir->Size && dir->VirtualAddress)
  79         ret = (IMAGE_IMPORT_DESCRIPTOR *)((char *)hmod + dir->VirtualAddress);
  80     return ret;
  81 }
  82
  83
  84 /* convert PE image VirtualAddress to Real Address */
  85 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
  86
  87 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  88
  89 void dump_exports( HMODULE hModule )
  90 {
  91   char          *Module;
  92   int           i, j;
  93   u_short       *ordinal;
  94   u_long        *function,*functions;
  95   u_char        **name;
  96   unsigned int load_addr = hModule;
  97
  98   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  99                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 100   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
 101                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 102   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
 103
 104   Module = (char*)RVA(pe_exports->Name);
 105   TRACE("*******EXPORT DATA*******\n");
 106   TRACE("Module name is %s, %ld functions, %ld names\n",
 107         Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
 108
 109   ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
 110   functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
 111   name=(u_char**) RVA(pe_exports->AddressOfNames);
 112
 113   TRACE(" Ord    RVA     Addr   Name\n" );
 114   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
 115   {
 116       if (!*function) continue;  /* No such function */
 117       if (TRACE_ON(win32))
 118       {
 119         DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
 120         /* Check if we have a name for it */
 121         for (j = 0; j < pe_exports->NumberOfNames; j++)
 122           if (ordinal[j] == i)
 123           {
 124               DPRINTF( "  %s", (char*)RVA(name[j]) );
 125               break;
 126           }
 127         if ((*function >= rva_start) && (*function <= rva_end))
 128           DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
 129         DPRINTF("\n");
 130       }
 131   }
 132 }
 133
 134 /* Look up the specified function or ordinal in the exportlist:
 135  * If it is a string:
 136  *      - look up the name in the Name list.
 137  *      - look up the ordinal with that index.
 138  *      - use the ordinal as offset into the functionlist
 139  * If it is a ordinal:
 140  *      - use ordinal-pe_export->Base as offset into the functionlist
 141  */
 142 static FARPROC PE_FindExportedFunction(
 143         WINE_MODREF *wm,        /* [in] WINE modreference */
 144         LPCSTR funcName,        /* [in] function name */
 145         BOOL snoop )
 146 {
 147         u_short                         * ordinals;
 148         u_long                          * function;
 149         u_char                          ** name, *ename = NULL;
 150         int                             i, ordinal;
 151         unsigned int                    load_addr = wm->module;
 152         u_long                          rva_start, rva_end, addr;
 153         char                            * forward;
 154         IMAGE_EXPORT_DIRECTORY *exports = get_exports(wm->module);
 155
 156         if (HIWORD(funcName))
 157                 TRACE("(%s)\n",funcName);
 158         else
 159                 TRACE("(%d)\n",(int)funcName);
 160         if (!exports) {
 161                 /* Not a fatal problem, some apps do
 162                  * GetProcAddress(0,"RegisterPenApp") which triggers this
 163                  * case.
 164                  */
 165                 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,wm);
 166                 return NULL;
 167         }
 168         ordinals= (u_short*)  RVA(exports->AddressOfNameOrdinals);
 169         function= (u_long*)   RVA(exports->AddressOfFunctions);
 170         name    = (u_char **) RVA(exports->AddressOfNames);
 171         forward = NULL;
 172         rva_start = PE_HEADER(wm->module)->OptionalHeader
 173                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 174         rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
 175                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 176
 177         if (HIWORD(funcName))
 178         {
 179             /* first try a binary search */
 180             int min = 0, max = exports->NumberOfNames - 1;
 181             while (min <= max)
 182             {
 183                 int res, pos = (min + max) / 2;
 184                 ename = RVA(name[pos]);
 185                 if (!(res = strcmp( ename, funcName )))
 186                 {
 187                     ordinal = ordinals[pos];
 188                     goto found;
 189                 }
 190                 if (res > 0) max = pos - 1;
 191                 else min = pos + 1;
 192             }
 193             /* now try a linear search in case the names aren't sorted properly */
 194             for (i = 0; i < exports->NumberOfNames; i++)
 195             {
 196                 ename = RVA(name[i]);
 197                 if (!strcmp( ename, funcName ))
 198                 {
 199                     ERR( "%s.%s required a linear search\n", wm->modname, funcName );
 200                     ordinal = ordinals[i];
 201                     goto found;
 202                 }
 203             }
 204             return NULL;
 205         }
 206         else  /* find by ordinal */
 207         {
 208             ordinal = LOWORD(funcName) - exports->Base;
 209             if (snoop && name)  /* need to find a name for it */
 210             {
 211                 for (i = 0; i < exports->NumberOfNames; i++)
 212                     if (ordinals[i] == ordinal)
 213                     {
 214                         ename = RVA(name[i]);
 215                         break;
 216                     }
 217             }
 218         }
 219
 220  found:
 221         if (ordinal >= exports->NumberOfFunctions)
 222         {
 223             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 224             return NULL;
 225         }
 226         addr = function[ordinal];
 227         if (!addr) return NULL;
 228         if ((addr < rva_start) || (addr >= rva_end))
 229         {
 230             FARPROC proc = RVA(addr);
 231             if (snoop)
 232             {
 233                 if (!ename) ename = "@";
 234                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 235             }
 236             return proc;
 237         }
 238         else  /* forward entry point */
 239         {
 240                 WINE_MODREF *wm;
 241                 FARPROC proc;
 242                 char *forward = RVA(addr);
 243                 char module[256];
 244                 char *end = strchr(forward, '.');
 245
 246                 if (!end) return NULL;
 247                 if (end - forward >= sizeof(module)) return NULL;
 248                 memcpy( module, forward, end - forward );
 249                 module[end-forward] = 0;
 250                 if (!(wm = MODULE_FindModule( module )))
 251                 {
 252                     ERR("module not found for forward '%s'\n", forward );
 253                     return NULL;
 254                 }
 255                 if (!(proc = MODULE_GetProcAddress( wm->module, end + 1, snoop )))
 256                     ERR("function not found for forward '%s'\n", forward );
 257                 return proc;
 258         }
 259 }
 260
 261 DWORD fixup_imports( WINE_MODREF *wm )
 262 {
 263     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 264     unsigned int load_addr      = wm->module;
 265     int                         i,characteristics_detection=1;
 266     char                        *modname;
 267     IMAGE_EXPORT_DIRECTORY *exports = get_exports(wm->module);
 268     IMAGE_IMPORT_DESCRIPTOR *imports = get_imports(wm->module);
 269
 270     if (exports)
 271         modname = (char*) RVA(exports->Name);
 272     else
 273         modname = "<unknown>";
 274
 275     /* first, count the number of imported non-internal modules */
 276     pe_imp = imports;
 277     if (!pe_imp) return 0;
 278
 279     /* OK, now dump the import list */
 280     TRACE("Dumping imports list\n");
 281
 282     /* We assume that we have at least one import with !0 characteristics and
 283      * detect broken imports with all characteristics 0 (notably Borland) and
 284      * switch the detection off for them.
 285      */
 286     for (i = 0; pe_imp->Name ; pe_imp++) {
 287         if (!i && !pe_imp->u.Characteristics)
 288                 characteristics_detection = 0;
 289         if (characteristics_detection && !pe_imp->u.Characteristics)
 290                 break;
 291         i++;
 292     }
 293     if (!i) return 0;  /* no imports */
 294
 295     /* Allocate module dependency list */
 296     wm->nDeps = i;
 297     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 298
 299     /* load the imported modules. They are automatically
 300      * added to the modref list of the process.
 301      */
 302
 303     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 304         WINE_MODREF             *wmImp;
 305         IMAGE_IMPORT_BY_NAME    *pe_name;
 306         PIMAGE_THUNK_DATA       import_list,thunk_list;
 307         char                    *name = (char *) RVA(pe_imp->Name);
 308
 309         if (characteristics_detection && !pe_imp->u.Characteristics)
 310                 break;
 311
 312         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 313         if (!wmImp) {
 314             ERR_(module)("Module (file) %s needed by %s not found\n", name, wm->filename);
 315             return 1;
 316         }
 317         wm->deps[i++] = wmImp;
 318
 319         /* FIXME: forwarder entries ... */
 320
 321         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 322             TRACE("Microsoft style imports used\n");
 323             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 324             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 325
 326             while (import_list->u1.Ordinal) {
 327                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 328                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 329
 330                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 331                     thunk_list->u1.Function=MODULE_GetProcAddress(
 332                         wmImp->module, (LPCSTR)ordinal, TRUE
 333                     );
 334                     if (!thunk_list->u1.Function) {
 335                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 336                                 name, ordinal);
 337                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 338                     }
 339                 } else {                /* import by name */
 340                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 341                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 342                     thunk_list->u1.Function=MODULE_GetProcAddress(
 343                         wmImp->module, pe_name->Name, TRUE
 344                     );
 345                     if (!thunk_list->u1.Function) {
 346                         ERR("No implementation for %s.%d(%s), setting to 0xdeadbeef\n",
 347                                 name,pe_name->Hint,pe_name->Name);
 348                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 349                     }
 350                 }
 351                 import_list++;
 352                 thunk_list++;
 353             }
 354         } else {        /* Borland style */
 355             TRACE("Borland style imports used\n");
 356             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 357             while (thunk_list->u1.Ordinal) {
 358                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 359                     /* not sure about this branch, but it seems to work */
 360                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 361
 362                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 363                     thunk_list->u1.Function=MODULE_GetProcAddress(
 364                         wmImp->module, (LPCSTR) ordinal, TRUE
 365                     );
 366                     if (!thunk_list->u1.Function) {
 367                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 368                                 name,ordinal);
 369                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 370                     }
 371                 } else {
 372                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 373                     TRACE("--- %s %s.%d\n",
 374                                   pe_name->Name,name,pe_name->Hint);
 375                     thunk_list->u1.Function=MODULE_GetProcAddress(
 376                         wmImp->module, pe_name->Name, TRUE
 377                     );
 378                     if (!thunk_list->u1.Function) {
 379                         ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
 380                                 name, pe_name->Hint);
 381                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 382                     }
 383                 }
 384                 thunk_list++;
 385             }
 386         }
 387     }
 388     return 0;
 389 }
 390
 391 /***********************************************************************
 392  *           do_relocations
 393  *
 394  * Apply the relocations to a mapped PE image
 395  */
 396 static int do_relocations( char *base, const IMAGE_NT_HEADERS *nt, const char *filename )
 397 {
 398     const IMAGE_DATA_DIRECTORY *dir;
 399     const IMAGE_BASE_RELOCATION *rel;
 400     int delta = base - (char *)nt->OptionalHeader.ImageBase;
 401
 402     dir = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 403     rel = (IMAGE_BASE_RELOCATION *)(base + dir->VirtualAddress);
 404
 405     WARN("Info: base relocations needed for %s\n", filename);
 406     if (!dir->VirtualAddress || !dir->Size)
 407     {
 408         if (nt->OptionalHeader.ImageBase == 0x400000)
 409             ERR("Standard load address for a Win32 program not available - patched kernel ?\n");
 410         ERR( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 411              filename,
 412              (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 413              "stripped during link" : "unknown reason" );
 414         return 0;
 415     }
 416
 417     /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
 418      *        really make sure that the *new* base address is also > 2GB.
 419      *        Some DLLs really check the MSB of the module handle :-/
 420      */
 421     if ((nt->OptionalHeader.ImageBase & 0x80000000) && !((DWORD)base & 0x80000000))
 422         ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
 423
 424     while (rel->VirtualAddress)
 425     {
 426         char *page = base + rel->VirtualAddress;
 427         int i, count = (rel->SizeOfBlock - 8) / sizeof(rel->TypeOffset);
 428
 429         /* sanity checks */
 430         if ((char *)rel + rel->SizeOfBlock > base + dir->VirtualAddress + dir->Size ||
 431             page > base + nt->OptionalHeader.SizeOfImage)
 432         {
 433             ERR_(module)("invalid relocation %p,%lx,%ld at %p,%lx,%lx\n",
 434                          rel, rel->VirtualAddress, rel->SizeOfBlock,
 435                          base, dir->VirtualAddress, dir->Size );
 436             return 0;
 437         }
 438
 439         TRACE_(module)("%ld relocations for page %lx\n", rel->SizeOfBlock, rel->VirtualAddress);
 440
 441         /* patching in reverse order */
 442         for (i = 0 ; i < count; i++)
 443         {
 444             int offset = rel->TypeOffset[i] & 0xFFF;
 445             int type = rel->TypeOffset[i] >> 12;
 446             switch(type)
 447             {
 448             case IMAGE_REL_BASED_ABSOLUTE:
 449                 break;
 450             case IMAGE_REL_BASED_HIGH:
 451                 *(short*)(page+offset) += HIWORD(delta);
 452                 break;
 453             case IMAGE_REL_BASED_LOW:
 454                 *(short*)(page+offset) += LOWORD(delta);
 455                 break;
 456             case IMAGE_REL_BASED_HIGHLOW:
 457                 *(int*)(page+offset) += delta;
 458                 /* FIXME: if this is an exported address, fire up enhanced logic */
 459                 break;
 460             default:
 461                 FIXME_(module)("Unknown/unsupported fixup type %d.\n", type);
 462                 break;
 463             }
 464         }
 465         rel = (IMAGE_BASE_RELOCATION*)((char*)rel + rel->SizeOfBlock);
 466     }
 467     return 1;
 468 }
 469
 470
 471 /**********************************************************************
 472  *                      PE_LoadImage
 473  * Load one PE format DLL/EXE into memory
 474  *
 475  * Unluckily we can't just mmap the sections where we want them, for
 476  * (at least) Linux does only support offsets which are page-aligned.
 477  *
 478  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 479  * want to access them. (HMODULE32 point to the start of it)
 480  */
 481 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 482 {
 483     IMAGE_NT_HEADERS *nt;
 484     HMODULE hModule;
 485     HANDLE mapping;
 486     void *base;
 487
 488     TRACE_(module)( "loading %s\n", filename );
 489
 490     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 491     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 492     CloseHandle( mapping );
 493     if (!base) return 0;
 494
 495     hModule = (HMODULE)base;
 496     if (flags & LOAD_LIBRARY_AS_DATAFILE) return hModule;  /* nothing else to do */
 497
 498     /* perform base relocation, if necessary */
 499
 500     nt = PE_HEADER( hModule );
 501     if (hModule != nt->OptionalHeader.ImageBase)
 502     {
 503         if (!do_relocations( base, nt, filename ))
 504         {
 505             UnmapViewOfFile( base );
 506             SetLastError( ERROR_BAD_EXE_FORMAT );
 507             return 0;
 508         }
 509     }
 510
 511     /* virus check */
 512
 513     if (nt->OptionalHeader.AddressOfEntryPoint)
 514     {
 515         int i;
 516         IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader +
 517                                                             nt->FileHeader.SizeOfOptionalHeader);
 518         for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
 519         {
 520             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress)
 521                 continue;
 522             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress+sec->Misc.VirtualSize)
 523                 break;
 524         }
 525         if (i == nt->FileHeader.NumberOfSections)
 526             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 527                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 528                     nt->OptionalHeader.AddressOfEntryPoint );
 529     }
 530
 531     return hModule;
 532 }
 533
 534 /**********************************************************************
 535  *                 PE_CreateModule
 536  *
 537  * Create WINE_MODREF structure for loaded HMODULE32, link it into
 538  * process modref_list, and fixup all imports.
 539  *
 540  * Note: hModule must point to a correctly allocated PE image,
 541  *       with base relocations applied; the 16-bit dummy module
 542  *       associated to hModule must already exist.
 543  *
 544  * Note: This routine must always be called in the context of the
 545  *       process that is to own the module to be created.
 546  *
 547  * Note: Assumes that the process critical section is held
 548  */
 549 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 550                               HFILE hFile, BOOL builtin )
 551 {
 552     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 553     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 554     IMAGE_DATA_DIRECTORY *dir;
 555     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 556     WINE_MODREF *wm;
 557     HMODULE16 hModule16;
 558
 559     /* Retrieve DataDirectory entries */
 560
 561     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 562     if (dir->Size)
 563         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 564
 565     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 566     if (dir->Size) FIXME("Exception directory ignored\n" );
 567
 568     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 569     if (dir->Size) FIXME("Security directory ignored\n" );
 570
 571     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 572     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 573
 574     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 575     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 576
 577     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 578
 579     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 580     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 581
 582     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 583     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 584
 585     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 586     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 587
 588     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 589     if (dir->Size)
 590     {
 591                 TRACE("Delayed import, stub calls LoadLibrary\n" );
 592                 /*
 593                  * Nothing to do here.
 594                  */
 595
 596 #ifdef ImgDelayDescr
 597                 /*
 598                  * This code is useful to observe what the heck is going on.
 599                  */
 600                 {
 601                 ImgDelayDescr *pe_delay = NULL;
 602         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 603         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 604         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 605         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 606         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 607         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 608         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 609         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 610         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 611         }
 612 #endif /* ImgDelayDescr */
 613         }
 614
 615     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 616     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 617
 618     dir = nt->OptionalHeader.DataDirectory+15;
 619     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 620
 621     /* Create 16-bit dummy module */
 622
 623     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 624     {
 625         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 626         return NULL;
 627     }
 628
 629     /* Allocate and fill WINE_MODREF */
 630
 631     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 632     {
 633         FreeLibrary16( hModule16 );
 634         return NULL;
 635     }
 636
 637     if ( builtin )
 638     {
 639         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 640         pModule->flags |= NE_FFLAGS_BUILTIN;
 641         wm->flags |= WINE_MODREF_INTERNAL;
 642     }
 643
 644     if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 645         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 646
 647     wm->find_export = PE_FindExportedFunction;
 648
 649     /* Dump Exports */
 650
 651     if ( pe_export )
 652         dump_exports( hModule );
 653
 654     /* The exe_modref must be in place, before implicit linked DLLs are loaded
 655        by fixup_imports, otherwhise GetModuleFileName will not work and modules
 656        in the executables directory can not be found */
 657
 658     if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
 659     {
 660       if ( PROCESS_Current()->exe_modref )
 661         FIXME( "Trying to load second .EXE file: %s\n", filename );
 662       else
 663       {
 664         PROCESS_Current()->exe_modref = wm;
 665         PROCESS_Current()->module = wm->module;
 666       }
 667     }
 668
 669     /* Fixup Imports */
 670
 671     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) && fixup_imports( wm ))
 672     {
 673         /* remove entry from modref chain */
 674
 675         if ( !wm->prev )
 676             PROCESS_Current()->modref_list = wm->next;
 677         else
 678             wm->prev->next = wm->next;
 679
 680         if ( wm->next ) wm->next->prev = wm->prev;
 681         wm->next = wm->prev = NULL;
 682
 683         /* FIXME: there are several more dangling references
 684          * left. Including dlls loaded by this dll before the
 685          * failed one. Unrolling is rather difficult with the
 686          * current structure and we can leave it them lying
 687          * around with no problems, so we don't care.
 688          * As these might reference our wm, we don't free it.
 689          */
 690          return NULL;
 691     }
 692
 693     if (pe_export)
 694         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->NumberOfFunctions );
 695
 696     /* Send DLL load event */
 697     /* we don't need to send a dll event for the main exe */
 698
 699     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 700     {
 701         struct load_dll_request *req = get_req_buffer();
 702         req->handle     = hFile;
 703         req->base       = (void *)hModule;
 704         req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 705         req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 706         req->name       = &wm->filename;
 707         server_call_noerr( REQ_LOAD_DLL );
 708     }
 709
 710     return wm;
 711 }
 712
 713 /******************************************************************************
 714  * The PE Library Loader frontend.
 715  * FIXME: handle the flags.
 716  */
 717 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 718 {
 719         HMODULE         hModule32;
 720         WINE_MODREF     *wm;
 721         char            filename[256];
 722         HANDLE          hFile;
 723
 724         /* Search for and open PE file */
 725         if ( SearchPathA( NULL, name, ".DLL",
 726                           sizeof(filename), filename, NULL ) == 0 ) return NULL;
 727
 728         hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
 729                              NULL, OPEN_EXISTING, 0, -1 );
 730         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 731
 732         /* Load PE module */
 733         hModule32 = PE_LoadImage( hFile, filename, flags );
 734         if (!hModule32)
 735         {
 736                 CloseHandle( hFile );
 737                 return NULL;
 738         }
 739
 740         /* Create 32-bit MODREF */
 741         if ( !(wm = PE_CreateModule( hModule32, filename, flags, -1, FALSE )) )
 742         {
 743                 ERR( "can't load %s\n", filename );
 744                 CloseHandle( hFile );
 745                 SetLastError( ERROR_OUTOFMEMORY );
 746                 return NULL;
 747         }
 748
 749         CloseHandle( hFile );
 750         return wm;
 751 }
 752
 753
 754 /* Called if the library is loaded or freed.
 755  * NOTE: if a thread attaches a DLL, the current thread will only do
 756  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 757  * (SDK)
 758  */
 759 typedef DWORD CALLBACK(*DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 760
 761 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 762 {
 763     BOOL retv = TRUE;
 764     IMAGE_NT_HEADERS *nt = PE_HEADER(module);
 765
 766     /* Is this a library? And has it got an entrypoint? */
 767     if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 768         (nt->OptionalHeader.AddressOfEntryPoint))
 769     {
 770         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 771         TRACE_(relay)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 772                        entry, module, type, lpReserved );
 773
 774         retv = entry( module, type, lpReserved );
 775     }
 776
 777     return retv;
 778 }
 779
 780 /************************************************************************
 781  *      PE_InitTls                      (internal)
 782  *
 783  * If included, initialises the thread local storages of modules.
 784  * Pointers in those structs are not RVAs but real pointers which have been
 785  * relocated by do_relocations() already.
 786  */
 787 static LPVOID
 788 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 789         if (    ((DWORD)addr>opt->ImageBase) &&
 790                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 791         )
 792                 /* the address has not been relocated! */
 793                 return (LPVOID)(((DWORD)addr)+delta);
 794         else
 795                 /* the address has been relocated already */
 796                 return addr;
 797 }
 798 void PE_InitTls( void )
 799 {
 800         WINE_MODREF             *wm;
 801         IMAGE_NT_HEADERS        *peh;
 802         DWORD                   size,datasize;
 803         LPVOID                  mem;
 804         PIMAGE_TLS_DIRECTORY    pdir;
 805         int delta;
 806
 807         for (wm = PROCESS_Current()->modref_list;wm;wm=wm->next) {
 808                 peh = PE_HEADER(wm->module);
 809                 delta = wm->module - peh->OptionalHeader.ImageBase;
 810                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 811                         continue;
 812                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 813                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 814
 815
 816                 if ( wm->tlsindex == -1 ) {
 817                         LPDWORD xaddr;
 818                         wm->tlsindex = TlsAlloc();
 819                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 820                                         pdir->AddressOfIndex
 821                         );
 822                         *xaddr=wm->tlsindex;
 823                 }
 824                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 825                 size    = datasize + pdir->SizeOfZeroFill;
 826                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 827                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 828                 if (pdir->AddressOfCallBacks) {
 829                      PIMAGE_TLS_CALLBACK *cbs;
 830
 831                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 832                      if (*cbs)
 833                        FIXME("TLS Callbacks aren't going to be called\n");
 834                 }
 835
 836                 TlsSetValue( wm->tlsindex, mem );
 837         }
 838 }
 839