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  * - No, you (usually) cannot use Linux mmap() to mmap() the images directly.
  25  *
  26  *   The problem is, that there is not direct 1:1 mapping from a diskimage and
  27  *   a memoryimage. The headers at the start are mapped linear, but the sections
  28  *   are not. For x86 the sections are 512 byte aligned in file and 4096 byte
  29  *   aligned in memory. Linux likes them 4096 byte aligned in memory (due to
  30  *   x86 pagesize, this cannot be fixed without a rather large kernel rewrite)
  31  *   and 'blocksize' file-aligned (offsets). Since we have 512/1024/2048 (CDROM)
  32  *   and other byte blocksizes, we can't do this. However, this could be less
  33  *   difficult to support... (See mm/filemap.c).
  34  */
  35
  36 #include <errno.h>
  37 #include <assert.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41 #include <sys/types.h>
  42 #include <sys/stat.h>
  43 #include <sys/mman.h>
  44 #include "windef.h"
  45 #include "winbase.h"
  46 #include "winerror.h"
  47 #include "callback.h"
  48 #include "file.h"
  49 #include "heap.h"
  50 #include "neexe.h"
  51 #include "peexe.h"
  52 #include "process.h"
  53 #include "thread.h"
  54 #include "pe_image.h"
  55 #include "module.h"
  56 #include "global.h"
  57 #include "task.h"
  58 #include "snoop.h"
  59 #include "debug.h"
  60
  61 DECLARE_DEBUG_CHANNEL(delayhlp)
  62 DECLARE_DEBUG_CHANNEL(fixup)
  63 DECLARE_DEBUG_CHANNEL(module)
  64 DECLARE_DEBUG_CHANNEL(relay)
  65 DECLARE_DEBUG_CHANNEL(segment)
  66 DECLARE_DEBUG_CHANNEL(win32)
  67
  68
  69 /* convert PE image VirtualAddress to Real Address */
  70 #define RVA(x) ((unsigned int)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(win32,"*******EXPORT DATA*******\n");
  91   TRACE(win32,"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(win32," 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         dbg_decl_str(win32, 1024);
 104
 105         dsprintf(win32,"%4ld %08lx %08x",
 106                  i + pe_exports->Base, *function, RVA(*function) );
 107         /* Check if we have a name for it */
 108         for (j = 0; j < pe_exports->NumberOfNames; j++)
 109           if (ordinal[j] == i)
 110             dsprintf(win32, "  %s", (char*)RVA(name[j]) );
 111         if ((*function >= rva_start) && (*function <= rva_end))
 112           dsprintf(win32, " (forwarded -> %s)", (char *)RVA(*function));
 113         TRACE(win32,"%s\n", dbg_str(win32));
 114       }
 115   }
 116 }
 117
 118 /* Look up the specified function or ordinal in the exportlist:
 119  * If it is a string:
 120  *      - look up the name in the Name list.
 121  *      - look up the ordinal with that index.
 122  *      - use the ordinal as offset into the functionlist
 123  * If it is a ordinal:
 124  *      - use ordinal-pe_export->Base as offset into the functionlist
 125  */
 126 FARPROC PE_FindExportedFunction(
 127         WINE_MODREF *wm,        /* [in] WINE modreference */
 128         LPCSTR funcName,        /* [in] function name */
 129         BOOL snoop )
 130 {
 131         u_short                         * ordinal;
 132         u_long                          * function;
 133         u_char                          ** name, *ename;
 134         int                             i;
 135         PE_MODREF                       *pem = &(wm->binfmt.pe);
 136         IMAGE_EXPORT_DIRECTORY          *exports = pem->pe_export;
 137         unsigned int                    load_addr = wm->module;
 138         u_long                          rva_start, rva_end, addr;
 139         char                            * forward;
 140
 141         if (HIWORD(funcName))
 142                 TRACE(win32,"(%s)\n",funcName);
 143         else
 144                 TRACE(win32,"(%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(win32,"Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,pem);
 151                 return NULL;
 152         }
 153         ordinal = (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                 for(i=0; i<exports->NumberOfNames; i++) {
 164                         ename=(char*)RVA(*name);
 165                         if(!strcmp(ename,funcName))
 166                         {
 167                             addr = function[*ordinal];
 168                             if (!addr) return NULL;
 169                             if ((addr < rva_start) || (addr >= rva_end))
 170                                 return snoop? SNOOP_GetProcAddress(wm->module,ename,*ordinal,(FARPROC)RVA(addr))
 171                                             : (FARPROC)RVA(addr);
 172                             forward = (char *)RVA(addr);
 173                             break;
 174                         }
 175                         ordinal++;
 176                         name++;
 177                 }
 178         } else  {
 179                 int i;
 180                 if (LOWORD(funcName)-exports->Base > exports->NumberOfFunctions) {
 181                         TRACE(win32,"   ordinal %d out of range!\n",
 182                                       LOWORD(funcName));
 183                         return NULL;
 184                 }
 185                 addr = function[(int)funcName-exports->Base];
 186                 if (!addr) return NULL;
 187                 ename = "";
 188                 if (name) {
 189                     for (i=0;i<exports->NumberOfNames;i++) {
 190                             ename = (char*)RVA(*name);
 191                             if (*ordinal == LOWORD(funcName)-exports->Base)
 192                                 break;
 193                             ordinal++;
 194                             name++;
 195                     }
 196                     if (i==exports->NumberOfNames)
 197                         ename = "";
 198                 }
 199                 if ((addr < rva_start) || (addr >= rva_end))
 200                         return snoop? SNOOP_GetProcAddress(wm->module,ename,(DWORD)funcName-exports->Base,(FARPROC)RVA(addr))
 201                                     : (FARPROC)RVA(addr);
 202                 forward = (char *)RVA(addr);
 203         }
 204         if (forward)
 205         {
 206                 WINE_MODREF *wm;
 207                 char module[256];
 208                 char *end = strchr(forward, '.');
 209
 210                 if (!end) return NULL;
 211                 assert(end-forward<256);
 212                 strncpy(module, forward, (end - forward));
 213                 module[end-forward] = 0;
 214                 wm = MODULE_FindModule( module );
 215                 assert(wm);
 216                 return MODULE_GetProcAddress( wm->module, end + 1, snoop );
 217         }
 218         return NULL;
 219 }
 220
 221 DWORD fixup_imports( WINE_MODREF *wm )
 222 {
 223     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 224     PE_MODREF                   *pem;
 225     unsigned int load_addr      = wm->module;
 226     int                         i,characteristics_detection=1;
 227     char                        *modname;
 228
 229     assert(wm->type==MODULE32_PE);
 230     pem = &(wm->binfmt.pe);
 231     if (pem->pe_export)
 232         modname = (char*) RVA(pem->pe_export->Name);
 233     else
 234         modname = "<unknown>";
 235
 236     /* OK, now dump the import list */
 237     TRACE(win32, "Dumping imports list\n");
 238
 239     /* first, count the number of imported non-internal modules */
 240     pe_imp = pem->pe_import;
 241     if (!pe_imp)
 242         ERR(win32, "no import directory????\n");
 243
 244     /* We assume that we have at least one import with !0 characteristics and
 245      * detect broken imports with all characteristsics 0 (notably Borland) and
 246      * switch the detection off for them.
 247      */
 248     for (i = 0; pe_imp->Name ; pe_imp++) {
 249         if (!i && !pe_imp->u.Characteristics)
 250                 characteristics_detection = 0;
 251         if (characteristics_detection && !pe_imp->u.Characteristics)
 252                 break;
 253         i++;
 254     }
 255
 256     /* Allocate module dependency list */
 257     wm->nDeps = i;
 258     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 259
 260     /* load the imported modules. They are automatically
 261      * added to the modref list of the process.
 262      */
 263
 264     for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) {
 265         WINE_MODREF             *wmImp;
 266         IMAGE_IMPORT_BY_NAME    *pe_name;
 267         PIMAGE_THUNK_DATA       import_list,thunk_list;
 268         char                    *name = (char *) RVA(pe_imp->Name);
 269
 270         if (characteristics_detection && !pe_imp->u.Characteristics)
 271                 break;
 272
 273         /* don't use MODULE_Load, Win32 creates new task differently */
 274         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 275         if (!wmImp) {
 276             char *p,buffer[2000];
 277
 278             /* GetModuleFileName would use the wrong process, so don't use it */
 279             strcpy(buffer,wm->shortname);
 280             if (!(p = strrchr (buffer, '\\')))
 281                 p = buffer;
 282             strcpy (p + 1, name);
 283             wmImp = MODULE_LoadLibraryExA( buffer, 0, 0 );
 284         }
 285         if (!wmImp) {
 286             ERR (module, "Module %s not found\n", name);
 287             return 1;
 288         }
 289         wm->deps[i++] = wmImp;
 290
 291         /* FIXME: forwarder entries ... */
 292
 293         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 294             TRACE(win32, "Microsoft style imports used\n");
 295             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 296             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 297
 298             while (import_list->u1.Ordinal) {
 299                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 300                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 301
 302                     TRACE(win32, "--- Ordinal %s,%d\n", name, ordinal);
 303                     thunk_list->u1.Function=MODULE_GetProcAddress(
 304                         wmImp->module, (LPCSTR)ordinal, TRUE
 305                     );
 306                     if (!thunk_list->u1.Function) {
 307                         ERR(win32,"No implementation for %s.%d, setting to 0xdeadbeef\n",
 308                                 name, ordinal);
 309                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 310                     }
 311                 } else {                /* import by name */
 312                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 313                     TRACE(win32, "--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 314                     thunk_list->u1.Function=MODULE_GetProcAddress(
 315                         wmImp->module, pe_name->Name, TRUE
 316                     );
 317                     if (!thunk_list->u1.Function) {
 318                         ERR(win32,"No implementation for %s.%d(%s), setting to 0xdeadbeef\n",
 319                                 name,pe_name->Hint,pe_name->Name);
 320                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 321                     }
 322                 }
 323                 import_list++;
 324                 thunk_list++;
 325             }
 326         } else {        /* Borland style */
 327             TRACE(win32, "Borland style imports used\n");
 328             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 329             while (thunk_list->u1.Ordinal) {
 330                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 331                     /* not sure about this branch, but it seems to work */
 332                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 333
 334                     TRACE(win32,"--- Ordinal %s.%d\n",name,ordinal);
 335                     thunk_list->u1.Function=MODULE_GetProcAddress(
 336                         wmImp->module, (LPCSTR) ordinal, TRUE
 337                     );
 338                     if (!thunk_list->u1.Function) {
 339                         ERR(win32, "No implementation for %s.%d, setting to 0xdeadbeef\n",
 340                                 name,ordinal);
 341                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 342                     }
 343                 } else {
 344                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 345                     TRACE(win32,"--- %s %s.%d\n",
 346                                   pe_name->Name,name,pe_name->Hint);
 347                     thunk_list->u1.Function=MODULE_GetProcAddress(
 348                         wmImp->module, pe_name->Name, TRUE
 349                     );
 350                     if (!thunk_list->u1.Function) {
 351                         ERR(win32, "No implementation for %s.%d, setting to 0xdeadbeef\n",
 352                                 name, pe_name->Hint);
 353                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 354                     }
 355                 }
 356                 thunk_list++;
 357             }
 358         }
 359     }
 360     return 0;
 361 }
 362
 363 static int calc_vma_size( HMODULE hModule )
 364 {
 365     int i,vma_size = 0;
 366     IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
 367
 368     TRACE(win32, "Dump of segment table\n");
 369     TRACE(win32, "   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 370     for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
 371     {
 372         TRACE(win32, "%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 373                       pe_seg->Name,
 374                       pe_seg->Misc.VirtualSize,
 375                       pe_seg->VirtualAddress,
 376                       pe_seg->SizeOfRawData,
 377                       pe_seg->PointerToRawData,
 378                       pe_seg->PointerToRelocations,
 379                       pe_seg->PointerToLinenumbers,
 380                       pe_seg->NumberOfRelocations,
 381                       pe_seg->NumberOfLinenumbers,
 382                       pe_seg->Characteristics);
 383         vma_size=MAX(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
 384         vma_size=MAX(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize);
 385         pe_seg++;
 386     }
 387     return vma_size;
 388 }
 389
 390 static void do_relocations( unsigned int load_addr, IMAGE_BASE_RELOCATION *r )
 391 {
 392     int delta = load_addr - PE_HEADER(load_addr)->OptionalHeader.ImageBase;
 393     int hdelta = (delta >> 16) & 0xFFFF;
 394     int ldelta = delta & 0xFFFF;
 395
 396         if(delta == 0)
 397                 /* Nothing to do */
 398                 return;
 399         while(r->VirtualAddress)
 400         {
 401                 char *page = (char*) RVA(r->VirtualAddress);
 402                 int count = (r->SizeOfBlock - 8)/2;
 403                 int i;
 404                 TRACE(fixup, "%x relocations for page %lx\n",
 405                         count, r->VirtualAddress);
 406                 /* patching in reverse order */
 407                 for(i=0;i<count;i++)
 408                 {
 409                         int offset = r->TypeOffset[i] & 0xFFF;
 410                         int type = r->TypeOffset[i] >> 12;
 411                         TRACE(fixup,"patching %x type %x\n", offset, type);
 412                         switch(type)
 413                         {
 414                         case IMAGE_REL_BASED_ABSOLUTE: break;
 415                         case IMAGE_REL_BASED_HIGH:
 416                                 *(short*)(page+offset) += hdelta;
 417                                 break;
 418                         case IMAGE_REL_BASED_LOW:
 419                                 *(short*)(page+offset) += ldelta;
 420                                 break;
 421                         case IMAGE_REL_BASED_HIGHLOW:
 422 #if 1
 423                                 *(int*)(page+offset) += delta;
 424 #else
 425                                 { int h=*(unsigned short*)(page+offset);
 426                                   int l=r->TypeOffset[++i];
 427                                   *(unsigned int*)(page + offset) = (h<<16) + l + delta;
 428                                 }
 429 #endif
 430                                 break;
 431                         case IMAGE_REL_BASED_HIGHADJ:
 432                                 FIXME(win32, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 433                                 break;
 434                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 435                                 FIXME(win32, "Is this a MIPS machine ???\n");
 436                                 break;
 437                         default:
 438                                 FIXME(win32, "Unknown fixup type\n");
 439                                 break;
 440                         }
 441                 }
 442                 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
 443         }
 444 }
 445
 446
 447
 448
 449
 450 /**********************************************************************
 451  *                      PE_LoadImage
 452  * Load one PE format DLL/EXE into memory
 453  *
 454  * Unluckily we can't just mmap the sections where we want them, for
 455  * (at least) Linux does only support offsets which are page-aligned.
 456  *
 457  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 458  * want to access them. (HMODULE32 point to the start of it)
 459  */
 460 HMODULE PE_LoadImage( HFILE hFile, OFSTRUCT *ofs, LPCSTR *modName )
 461 {
 462     HMODULE     hModule;
 463     HANDLE      mapping;
 464
 465     IMAGE_NT_HEADERS *nt;
 466     IMAGE_SECTION_HEADER *pe_sec;
 467     IMAGE_DATA_DIRECTORY *dir;
 468     BY_HANDLE_FILE_INFORMATION bhfi;
 469     int i, rawsize, lowest_va, lowest_fa, vma_size, file_size = 0;
 470     DWORD load_addr, aoep, reloc = 0;
 471
 472     /* Retrieve file size */
 473     if ( GetFileInformationByHandle( hFile, &bhfi ) )
 474         file_size = bhfi.nFileSizeLow; /* FIXME: 64 bit */
 475
 476     /* Map the PE file somewhere */
 477     mapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
 478                                     0, 0, NULL );
 479     if (!mapping)
 480     {
 481         WARN( win32, "CreateFileMapping error %ld\n", GetLastError() );
 482         return 0;
 483     }
 484     hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 485     CloseHandle( mapping );
 486     if (!hModule)
 487     {
 488         WARN( win32, "MapViewOfFile error %ld\n", GetLastError() );
 489         return 0;
 490     }
 491     nt = PE_HEADER( hModule );
 492
 493     /* Check signature */
 494     if ( nt->Signature != IMAGE_NT_SIGNATURE )
 495     {
 496         WARN(win32, "image doesn't have PE signature, but 0x%08lx\n",
 497                     nt->Signature );
 498         goto error;
 499     }
 500
 501     /* Check architecture */
 502     if ( nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386 )
 503     {
 504         MSG("Trying to load PE image for unsupported architecture (");
 505         switch (nt->FileHeader.Machine)
 506         {
 507         case IMAGE_FILE_MACHINE_UNKNOWN: MSG("Unknown"); break;
 508         case IMAGE_FILE_MACHINE_I860:    MSG("I860"); break;
 509         case IMAGE_FILE_MACHINE_R3000:   MSG("R3000"); break;
 510         case IMAGE_FILE_MACHINE_R4000:   MSG("R4000"); break;
 511         case IMAGE_FILE_MACHINE_R10000:  MSG("R10000"); break;
 512         case IMAGE_FILE_MACHINE_ALPHA:   MSG("Alpha"); break;
 513         case IMAGE_FILE_MACHINE_POWERPC: MSG("PowerPC"); break;
 514         default: MSG("Unknown-%04x", nt->FileHeader.Machine); break;
 515         }
 516         MSG(")\n");
 517         goto error;
 518     }
 519
 520     /* Find out how large this executeable should be */
 521     pe_sec = PE_SECTIONS( hModule );
 522     rawsize = 0; lowest_va = 0x10000; lowest_fa = 0x10000;
 523     for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
 524     {
 525         if (lowest_va > pe_sec[i].VirtualAddress)
 526            lowest_va = pe_sec[i].VirtualAddress;
 527         if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 528             continue;
 529         if (pe_sec[i].PointerToRawData < lowest_fa)
 530             lowest_fa = pe_sec[i].PointerToRawData;
 531         if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize)
 532             rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData;
 533     }
 534
 535     /* Check file size */
 536     if ( file_size && file_size < rawsize )
 537     {
 538         ERR( win32, "PE module is too small (header: %d, filesize: %d), "
 539                     "probably truncated download?\n",
 540                     rawsize, file_size );
 541         goto error;
 542     }
 543
 544     /* Check entrypoint address */
 545     aoep = nt->OptionalHeader.AddressOfEntryPoint;
 546     if (aoep && (aoep < lowest_va))
 547         FIXME( win32, "WARNING: '%s' has an invalid entrypoint (0x%08lx) "
 548                       "below the first virtual address (0x%08x) "
 549                       "(possible Virus Infection or broken binary)!\n",
 550                        ofs->szPathName, aoep, lowest_va );
 551
 552
 553     /* Allocate memory for module */
 554     load_addr = nt->OptionalHeader.ImageBase;
 555     vma_size = calc_vma_size( hModule );
 556
 557     load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
 558                                      MEM_RESERVE | MEM_COMMIT,
 559                                      PAGE_EXECUTE_READWRITE );
 560     if (load_addr == 0)
 561     {
 562         /* We need to perform base relocations */
 563         dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BASERELOC;
 564         if (dir->Size)
 565             reloc = dir->VirtualAddress;
 566         else
 567         {
 568             FIXME( win32,
 569                    "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 570                    ofs->szPathName,
 571                    (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 572                    "stripped during link" : "unknown reason" );
 573             goto error;
 574         }
 575
 576         load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
 577                                          MEM_RESERVE | MEM_COMMIT,
 578                                          PAGE_EXECUTE_READWRITE );
 579     }
 580
 581     TRACE( win32, "Load addr is %lx (base %lx), range %x\n",
 582                   load_addr, nt->OptionalHeader.ImageBase, vma_size );
 583     TRACE( segment, "Loading %s at %lx, range %x\n",
 584                     ofs->szPathName, load_addr, vma_size );
 585
 586     /* Store the NT header at the load addr */
 587     *(PIMAGE_DOS_HEADER)load_addr = *(PIMAGE_DOS_HEADER)hModule;
 588     *PE_HEADER( load_addr ) = *nt;
 589     memcpy( PE_SECTIONS(load_addr), PE_SECTIONS(hModule),
 590             sizeof(IMAGE_SECTION_HEADER) * nt->FileHeader.NumberOfSections );
 591 #if 0
 592     /* Copies all stuff up to the first section. Including win32 viruses. */
 593     memcpy( load_addr, hModule, lowest_fa );
 594 #endif
 595
 596     /* Copy sections into module image */
 597     pe_sec = PE_SECTIONS( hModule );
 598     for (i = 0; i < nt->FileHeader.NumberOfSections; i++, pe_sec++)
 599     {
 600         /* memcpy only non-BSS segments */
 601         /* FIXME: this should be done by mmap(..MAP_PRIVATE|MAP_FIXED..)
 602          * but it is not possible for (at least) Linux needs
 603          * a page-aligned offset.
 604          */
 605         if(!(pe_sec->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA))
 606             memcpy((char*)RVA(pe_sec->VirtualAddress),
 607                    (char*)(hModule + pe_sec->PointerToRawData),
 608                    pe_sec->SizeOfRawData);
 609 #if 0
 610         /* not needed, memory is zero */
 611         if(strcmp(pe_sec->Name, ".bss") == 0)
 612             memset((void *)RVA(pe_sec->VirtualAddress), 0,
 613                    pe_sec->Misc.VirtualSize ?
 614                    pe_sec->Misc.VirtualSize :
 615                    pe_sec->SizeOfRawData);
 616 #endif
 617     }
 618
 619     /* Perform base relocation, if necessary */
 620     if ( reloc )
 621         do_relocations( load_addr, (IMAGE_BASE_RELOCATION *)RVA(reloc) );
 622
 623     /* Get module name */
 624     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 625     if (dir->Size)
 626         *modName = (LPCSTR)RVA(((PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress))->Name);
 627
 628     /* We don't need the orignal mapping any more */
 629     UnmapViewOfFile( (LPVOID)hModule );
 630     return (HMODULE)load_addr;
 631
 632 error:
 633     UnmapViewOfFile( (LPVOID)hModule );
 634     return 0;
 635 }
 636
 637 /**********************************************************************
 638  *                 PE_CreateModule
 639  *
 640  * Create WINE_MODREF structure for loaded HMODULE32, link it into
 641  * process modref_list, and fixup all imports.
 642  *
 643  * Note: hModule must point to a correctly allocated PE image,
 644  *       with base relocations applied; the 16-bit dummy module
 645  *       associated to hModule must already exist.
 646  *
 647  * Note: This routine must always be called in the context of the
 648  *       process that is to own the module to be created.
 649  */
 650 WINE_MODREF *PE_CreateModule( HMODULE hModule,
 651                               OFSTRUCT *ofs, DWORD flags, BOOL builtin )
 652 {
 653     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 654     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 655     IMAGE_DATA_DIRECTORY *dir;
 656     IMAGE_IMPORT_DESCRIPTOR *pe_import = NULL;
 657     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 658     IMAGE_RESOURCE_DIRECTORY *pe_resource = NULL;
 659     WINE_MODREF *wm;
 660     int result;
 661     char *modname;
 662
 663
 664     /* Retrieve DataDirectory entries */
 665
 666     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 667     if (dir->Size)
 668         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 669
 670     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IMPORT;
 671     if (dir->Size)
 672         pe_import = (PIMAGE_IMPORT_DESCRIPTOR)RVA(dir->VirtualAddress);
 673
 674     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE;
 675     if (dir->Size)
 676         pe_resource = (PIMAGE_RESOURCE_DIRECTORY)RVA(dir->VirtualAddress);
 677
 678     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 679     if (dir->Size) FIXME( win32, "Exception directory ignored\n" );
 680
 681     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 682     if (dir->Size) FIXME( win32, "Security directory ignored\n" );
 683
 684     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 685     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 686
 687     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DEBUG;
 688     if (dir->Size) TRACE( win32, "Debug directory ignored\n" );
 689
 690     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COPYRIGHT;
 691     if (dir->Size) FIXME( win32, "Copyright string ignored\n" );
 692
 693     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 694     if (dir->Size) FIXME( win32, "Global Pointer (MIPS) ignored\n" );
 695
 696     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 697
 698     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 699     if (dir->Size) FIXME (win32, "Load Configuration directory ignored\n" );
 700
 701     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 702     if (dir->Size) TRACE( win32, "Bound Import directory ignored\n" );
 703
 704     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 705     if (dir->Size) TRACE( win32, "Import Address Table directory ignored\n" );
 706
 707     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 708     if (dir->Size)
 709     {
 710                 TRACE( win32, "Delayed import, stub calls LoadLibrary\n" );
 711                 /*
 712                  * Nothing to do here.
 713                  */
 714
 715 #ifdef ImgDelayDescr
 716                 /*
 717                  * This code is useful to observe what the heck is going on.
 718                  */
 719                 {
 720                 ImgDelayDescr *pe_delay = NULL;
 721         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 722         TRACE(delayhlp,"pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 723         TRACE(delayhlp,"pe_delay->szName = %s\n", pe_delay->szName);
 724         TRACE(delayhlp,"pe_delay->phmod = %08x\n", pe_delay->phmod);
 725         TRACE(delayhlp,"pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 726         TRACE(delayhlp,"pe_delay->pINT = %08x\n", pe_delay->pINT);
 727         TRACE(delayhlp,"pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 728         TRACE(delayhlp,"pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 729         TRACE(delayhlp,"pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 730         }
 731 #endif /* ImgDelayDescr */
 732         }
 733
 734     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 735     if (dir->Size) FIXME( win32, "Unknown directory 14 ignored\n" );
 736
 737     dir = nt->OptionalHeader.DataDirectory+15;
 738     if (dir->Size) FIXME( win32, "Unknown directory 15 ignored\n" );
 739
 740
 741     /* Allocate and fill WINE_MODREF */
 742
 743     wm = (WINE_MODREF *)HeapAlloc( GetProcessHeap(),
 744                                    HEAP_ZERO_MEMORY, sizeof(*wm) );
 745     wm->module = hModule;
 746
 747     if ( builtin )
 748         wm->flags |= WINE_MODREF_INTERNAL;
 749     if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 750         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 751     if ( flags & LOAD_LIBRARY_AS_DATAFILE )
 752         wm->flags |= WINE_MODREF_LOAD_AS_DATAFILE;
 753
 754     wm->type = MODULE32_PE;
 755     wm->binfmt.pe.pe_export = pe_export;
 756     wm->binfmt.pe.pe_import = pe_import;
 757     wm->binfmt.pe.pe_resource = pe_resource;
 758     wm->binfmt.pe.tlsindex = -1;
 759
 760     if ( pe_export )
 761         modname = (char *)RVA( pe_export->Name );
 762     else
 763     {
 764         /* try to find out the name from the OFSTRUCT */
 765         char *s;
 766         modname = ofs->szPathName;
 767         if ((s=strrchr(modname,'\\'))) modname = s+1;
 768     }
 769     wm->modname = HEAP_strdupA( GetProcessHeap(), 0, modname );
 770
 771     result = GetLongPathNameA( ofs->szPathName, NULL, 0 );
 772     wm->longname = (char *)HeapAlloc( GetProcessHeap(), 0, result+1 );
 773     GetLongPathNameA( ofs->szPathName, wm->longname, result+1 );
 774
 775     wm->shortname = HEAP_strdupA( GetProcessHeap(), 0, ofs->szPathName );
 776
 777     /* Link MODREF into process list */
 778
 779     EnterCriticalSection( &PROCESS_Current()->crit_section );
 780
 781     wm->next = PROCESS_Current()->modref_list;
 782     PROCESS_Current()->modref_list = wm;
 783     if ( wm->next ) wm->next->prev = wm;
 784
 785     if ( !(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) )
 786     {
 787         if ( PROCESS_Current()->exe_modref )
 788             FIXME( win32, "overwriting old exe_modref... arrgh\n" );
 789         PROCESS_Current()->exe_modref = wm;
 790     }
 791
 792     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 793
 794
 795     /* Dump Exports */
 796
 797     if ( pe_export )
 798         dump_exports( hModule );
 799
 800     /* Fixup Imports */
 801
 802     if (    pe_import && fixup_imports( wm )
 803          && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE )
 804          && !( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS ) )
 805     {
 806         /* remove entry from modref chain */
 807         EnterCriticalSection( &PROCESS_Current()->crit_section );
 808
 809         if ( !wm->prev )
 810             PROCESS_Current()->modref_list = wm->next;
 811         else
 812             wm->prev->next = wm->next;
 813
 814         if ( wm->next ) wm->next->prev = wm->prev;
 815         wm->next = wm->prev = NULL;
 816
 817         LeaveCriticalSection( &PROCESS_Current()->crit_section );
 818
 819         /* FIXME: there are several more dangling references
 820          * left. Including dlls loaded by this dll before the
 821          * failed one. Unrolling is rather difficult with the
 822          * current structure and we can leave it them lying
 823          * around with no problems, so we don't care.
 824          * As these might reference our wm, we don't free it.
 825          */
 826          return NULL;
 827     }
 828
 829     return wm;
 830 }
 831
 832 /******************************************************************************
 833  * The PE Library Loader frontend.
 834  * FIXME: handle the flags.
 835  */
 836 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags, DWORD *err)
 837 {
 838         LPCSTR          modName = NULL;
 839         OFSTRUCT        ofs;
 840         HMODULE         hModule32;
 841         HMODULE16       hModule16;
 842         NE_MODULE       *pModule;
 843         WINE_MODREF     *wm;
 844         BOOL            builtin = TRUE;
 845         char            dllname[256], *p;
 846         HFILE           hFile;
 847
 848         /* Append .DLL to name if no extension present */
 849         strcpy( dllname, name );
 850         if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 851                 strcat( dllname, ".DLL" );
 852
 853         /* Load PE module */
 854         hFile = OpenFile( dllname, &ofs, OF_READ | OF_SHARE_DENY_WRITE );
 855         if ( hFile != HFILE_ERROR )
 856         {
 857                 hModule32 = PE_LoadImage( hFile, &ofs, &modName );
 858                 CloseHandle( hFile );
 859                 if(!hModule32)
 860                 {
 861                         *err = ERROR_OUTOFMEMORY;       /* Not entirely right, but good enough */
 862                         return NULL;
 863                 }
 864         }
 865         else
 866         {
 867                 *err = ERROR_FILE_NOT_FOUND;
 868                 return NULL;
 869         }
 870
 871         /* Create 16-bit dummy module */
 872         if ((hModule16 = MODULE_CreateDummyModule( &ofs, modName )) < 32)
 873         {
 874                 *err = (DWORD)hModule16;        /* This should give the correct error */
 875                 return NULL;
 876         }
 877         pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 878         pModule->flags    = NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA | NE_FFLAGS_WIN32;
 879         pModule->module32 = hModule32;
 880
 881         /* Create 32-bit MODREF */
 882         if ( !(wm = PE_CreateModule( hModule32, &ofs, flags, builtin )) )
 883         {
 884                 ERR(win32,"can't load %s\n",ofs.szPathName);
 885                 FreeLibrary16( hModule16 );
 886                 *err = ERROR_OUTOFMEMORY;
 887                 return NULL;
 888         }
 889
 890         if (wm->binfmt.pe.pe_export)
 891                 SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
 892
 893         *err = 0;
 894         return wm;
 895 }
 896
 897
 898 /*****************************************************************************
 899  *      PE_UnloadLibrary
 900  *
 901  * Unload the library unmapping the image and freeing the modref structure.
 902  */
 903 void PE_UnloadLibrary(WINE_MODREF *wm)
 904 {
 905         /* FIXME, do something here */
 906 }
 907
 908 /*****************************************************************************
 909  * Load the PE main .EXE. All other loading is done by PE_LoadLibraryExA
 910  * FIXME: this function should use PE_LoadLibraryExA, but currently can't
 911  * due to the PROCESS_Create stuff.
 912  */
 913 BOOL PE_CreateProcess( HFILE hFile, OFSTRUCT *ofs, LPCSTR cmd_line, LPCSTR env,
 914                        LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 915                        BOOL inherit, LPSTARTUPINFOA startup,
 916                        LPPROCESS_INFORMATION info )
 917 {
 918     LPCSTR modName = NULL;
 919     HMODULE16 hModule16;
 920     HMODULE hModule32;
 921     NE_MODULE *pModule;
 922
 923     /* Load file */
 924     if ( (hModule32 = PE_LoadImage( hFile, ofs, &modName )) < 32 )
 925     {
 926         SetLastError( hModule32 );
 927         return FALSE;
 928     }
 929 #if 0
 930     if (PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 931     {
 932         SetLastError( 20 );  /* FIXME: not the right error code */
 933         return FALSE;
 934     }
 935 #endif
 936
 937     /* Create 16-bit dummy module */
 938     if ( (hModule16 = MODULE_CreateDummyModule( ofs, modName )) < 32 )
 939     {
 940         SetLastError( hModule16 );
 941         return FALSE;
 942     }
 943     pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 944     pModule->flags    = NE_FFLAGS_WIN32;
 945     pModule->module32 = hModule32;
 946
 947     /* Create new process */
 948     if ( !PROCESS_Create( pModule, cmd_line, env,
 949                           0, 0, psa, tsa, inherit, startup, info ) )
 950         return FALSE;
 951
 952     /* Note: PE_CreateModule and the remaining process initialization will
 953              be done in the context of the new process, in TASK_CallToStart */
 954
 955     return TRUE;
 956 }
 957
 958 /*********************************************************************
 959  * PE_UnloadImage [internal]
 960  */
 961 int PE_UnloadImage( HMODULE hModule )
 962 {
 963         FIXME(win32,"stub.\n");
 964         /* free resources, image, unmap */
 965         return 1;
 966 }
 967
 968 /* Called if the library is loaded or freed.
 969  * NOTE: if a thread attaches a DLL, the current thread will only do
 970  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 971  * (SDK)
 972  */
 973 BOOL PE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
 974 {
 975     BOOL retv = TRUE;
 976     assert( wm->type == MODULE32_PE );
 977
 978     /* Is this a library? And has it got an entrypoint? */
 979     if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 980         (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
 981     ) {
 982         DLLENTRYPROC entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
 983         TRACE(relay, "CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 984                        entry, wm->module, type, lpReserved );
 985
 986         retv = entry( wm->module, type, lpReserved );
 987     }
 988
 989     return retv;
 990 }
 991
 992 /************************************************************************
 993  *      PE_InitTls                      (internal)
 994  *
 995  * If included, initialises the thread local storages of modules.
 996  * Pointers in those structs are not RVAs but real pointers which have been
 997  * relocated by do_relocations() already.
 998  */
 999 void PE_InitTls( void )
1000 {
1001         WINE_MODREF             *wm;
1002         PE_MODREF               *pem;
1003         IMAGE_NT_HEADERS        *peh;
1004         DWORD                   size,datasize;
1005         LPVOID                  mem;
1006         PIMAGE_TLS_DIRECTORY    pdir;
1007         int delta;
1008
1009         for (wm = PROCESS_Current()->modref_list;wm;wm=wm->next) {
1010                 if (wm->type!=MODULE32_PE)
1011                         continue;
1012                 pem = &(wm->binfmt.pe);
1013                 peh = PE_HEADER(wm->module);
1014                 delta = wm->module - peh->OptionalHeader.ImageBase;
1015                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
1016                         continue;
1017                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
1018                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
1019
1020
1021                 if ( pem->tlsindex == -1 ) {
1022                         pem->tlsindex = TlsAlloc();
1023                         *pdir->AddressOfIndex=pem->tlsindex;
1024                 }
1025                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
1026                 size    = datasize + pdir->SizeOfZeroFill;
1027                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
1028                 memcpy(mem,(LPVOID)pdir->StartAddressOfRawData,datasize);
1029                 if (pdir->AddressOfCallBacks) {
1030                      PIMAGE_TLS_CALLBACK *cbs =
1031                        (PIMAGE_TLS_CALLBACK *)pdir->AddressOfCallBacks;
1032
1033                      if (*cbs)
1034                        FIXME(win32, "TLS Callbacks aren't going to be called\n");
1035                 }
1036
1037                 TlsSetValue( pem->tlsindex, mem );
1038         }
1039 }
1040