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 "debugtools.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                 if (!(wm = MODULE_FindModule( module )))
 215                 {
 216                     ERR_(win32)("module not found for forward '%s'\n", forward );
 217                     return NULL;
 218                 }
 219                 return MODULE_GetProcAddress( wm->module, end + 1, snoop );
 220         }
 221         return NULL;
 222 }
 223
 224 DWORD fixup_imports( WINE_MODREF *wm )
 225 {
 226     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 227     PE_MODREF                   *pem;
 228     unsigned int load_addr      = wm->module;
 229     int                         i,characteristics_detection=1;
 230     char                        *modname;
 231
 232     assert(wm->type==MODULE32_PE);
 233     pem = &(wm->binfmt.pe);
 234     if (pem->pe_export)
 235         modname = (char*) RVA(pem->pe_export->Name);
 236     else
 237         modname = "<unknown>";
 238
 239     /* OK, now dump the import list */
 240     TRACE_(win32)("Dumping imports list\n");
 241
 242     /* first, count the number of imported non-internal modules */
 243     pe_imp = pem->pe_import;
 244     if (!pe_imp) return 0;
 245
 246     /* We assume that we have at least one import with !0 characteristics and
 247      * detect broken imports with all characteristsics 0 (notably Borland) and
 248      * switch the detection off for them.
 249      */
 250     for (i = 0; pe_imp->Name ; pe_imp++) {
 251         if (!i && !pe_imp->u.Characteristics)
 252                 characteristics_detection = 0;
 253         if (characteristics_detection && !pe_imp->u.Characteristics)
 254                 break;
 255         i++;
 256     }
 257     if (!i) return 0;  /* no imports */
 258
 259     /* Allocate module dependency list */
 260     wm->nDeps = i;
 261     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 262
 263     /* load the imported modules. They are automatically
 264      * added to the modref list of the process.
 265      */
 266
 267     for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) {
 268         WINE_MODREF             *wmImp;
 269         IMAGE_IMPORT_BY_NAME    *pe_name;
 270         PIMAGE_THUNK_DATA       import_list,thunk_list;
 271         char                    *name = (char *) RVA(pe_imp->Name);
 272
 273         if (characteristics_detection && !pe_imp->u.Characteristics)
 274                 break;
 275
 276         /* don't use MODULE_Load, Win32 creates new task differently */
 277         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 278         if (!wmImp) {
 279             char *p,buffer[2000];
 280
 281             /* GetModuleFileName would use the wrong process, so don't use it */
 282             strcpy(buffer,wm->shortname);
 283             if (!(p = strrchr (buffer, '\\')))
 284                 p = buffer;
 285             strcpy (p + 1, name);
 286             wmImp = MODULE_LoadLibraryExA( buffer, 0, 0 );
 287         }
 288         if (!wmImp) {
 289             ERR_(module)("Module %s not found\n", name);
 290             return 1;
 291         }
 292         wm->deps[i++] = wmImp;
 293
 294         /* FIXME: forwarder entries ... */
 295
 296         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 297             TRACE_(win32)("Microsoft style imports used\n");
 298             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 299             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 300
 301             while (import_list->u1.Ordinal) {
 302                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 303                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 304
 305                     TRACE_(win32)("--- Ordinal %s,%d\n", name, ordinal);
 306                     thunk_list->u1.Function=MODULE_GetProcAddress(
 307                         wmImp->module, (LPCSTR)ordinal, TRUE
 308                     );
 309                     if (!thunk_list->u1.Function) {
 310                         ERR_(win32)("No implementation for %s.%d, setting to 0xdeadbeef\n",
 311                                 name, ordinal);
 312                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 313                     }
 314                 } else {                /* import by name */
 315                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 316                     TRACE_(win32)("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 317                     thunk_list->u1.Function=MODULE_GetProcAddress(
 318                         wmImp->module, pe_name->Name, TRUE
 319                     );
 320                     if (!thunk_list->u1.Function) {
 321                         ERR_(win32)("No implementation for %s.%d(%s), setting to 0xdeadbeef\n",
 322                                 name,pe_name->Hint,pe_name->Name);
 323                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 324                     }
 325                 }
 326                 import_list++;
 327                 thunk_list++;
 328             }
 329         } else {        /* Borland style */
 330             TRACE_(win32)("Borland style imports used\n");
 331             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 332             while (thunk_list->u1.Ordinal) {
 333                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 334                     /* not sure about this branch, but it seems to work */
 335                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 336
 337                     TRACE_(win32)("--- Ordinal %s.%d\n",name,ordinal);
 338                     thunk_list->u1.Function=MODULE_GetProcAddress(
 339                         wmImp->module, (LPCSTR) ordinal, TRUE
 340                     );
 341                     if (!thunk_list->u1.Function) {
 342                         ERR_(win32)("No implementation for %s.%d, setting to 0xdeadbeef\n",
 343                                 name,ordinal);
 344                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 345                     }
 346                 } else {
 347                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 348                     TRACE_(win32)("--- %s %s.%d\n",
 349                                   pe_name->Name,name,pe_name->Hint);
 350                     thunk_list->u1.Function=MODULE_GetProcAddress(
 351                         wmImp->module, pe_name->Name, TRUE
 352                     );
 353                     if (!thunk_list->u1.Function) {
 354                         ERR_(win32)("No implementation for %s.%d, setting to 0xdeadbeef\n",
 355                                 name, pe_name->Hint);
 356                         thunk_list->u1.Function = (FARPROC)0xdeadbeef;
 357                     }
 358                 }
 359                 thunk_list++;
 360             }
 361         }
 362     }
 363     return 0;
 364 }
 365
 366 static int calc_vma_size( HMODULE hModule )
 367 {
 368     int i,vma_size = 0;
 369     IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
 370
 371     TRACE_(win32)("Dump of segment table\n");
 372     TRACE_(win32)("   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 373     for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
 374     {
 375         TRACE_(win32)("%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 376                       pe_seg->Name,
 377                       pe_seg->Misc.VirtualSize,
 378                       pe_seg->VirtualAddress,
 379                       pe_seg->SizeOfRawData,
 380                       pe_seg->PointerToRawData,
 381                       pe_seg->PointerToRelocations,
 382                       pe_seg->PointerToLinenumbers,
 383                       pe_seg->NumberOfRelocations,
 384                       pe_seg->NumberOfLinenumbers,
 385                       pe_seg->Characteristics);
 386         vma_size=MAX(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
 387         vma_size=MAX(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize);
 388         pe_seg++;
 389     }
 390     return vma_size;
 391 }
 392
 393 static void do_relocations( unsigned int load_addr, IMAGE_BASE_RELOCATION *r )
 394 {
 395     int delta = load_addr - PE_HEADER(load_addr)->OptionalHeader.ImageBase;
 396     int hdelta = (delta >> 16) & 0xFFFF;
 397     int ldelta = delta & 0xFFFF;
 398
 399         if(delta == 0)
 400                 /* Nothing to do */
 401                 return;
 402         while(r->VirtualAddress)
 403         {
 404                 char *page = (char*) RVA(r->VirtualAddress);
 405                 int count = (r->SizeOfBlock - 8)/2;
 406                 int i;
 407                 TRACE_(fixup)("%x relocations for page %lx\n",
 408                         count, r->VirtualAddress);
 409                 /* patching in reverse order */
 410                 for(i=0;i<count;i++)
 411                 {
 412                         int offset = r->TypeOffset[i] & 0xFFF;
 413                         int type = r->TypeOffset[i] >> 12;
 414                         TRACE_(fixup)("patching %x type %x\n", offset, type);
 415                         switch(type)
 416                         {
 417                         case IMAGE_REL_BASED_ABSOLUTE: break;
 418                         case IMAGE_REL_BASED_HIGH:
 419                                 *(short*)(page+offset) += hdelta;
 420                                 break;
 421                         case IMAGE_REL_BASED_LOW:
 422                                 *(short*)(page+offset) += ldelta;
 423                                 break;
 424                         case IMAGE_REL_BASED_HIGHLOW:
 425 #if 1
 426                                 *(int*)(page+offset) += delta;
 427 #else
 428                                 { int h=*(unsigned short*)(page+offset);
 429                                   int l=r->TypeOffset[++i];
 430                                   *(unsigned int*)(page + offset) = (h<<16) + l + delta;
 431                                 }
 432 #endif
 433                                 break;
 434                         case IMAGE_REL_BASED_HIGHADJ:
 435                                 FIXME_(win32)("Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 436                                 break;
 437                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 438                                 FIXME_(win32)("Is this a MIPS machine ???\n");
 439                                 break;
 440                         default:
 441                                 FIXME_(win32)("Unknown fixup type\n");
 442                                 break;
 443                         }
 444                 }
 445                 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
 446         }
 447 }
 448
 449
 450
 451
 452
 453 /**********************************************************************
 454  *                      PE_LoadImage
 455  * Load one PE format DLL/EXE into memory
 456  *
 457  * Unluckily we can't just mmap the sections where we want them, for
 458  * (at least) Linux does only support offsets which are page-aligned.
 459  *
 460  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 461  * want to access them. (HMODULE32 point to the start of it)
 462  */
 463 HMODULE PE_LoadImage( HFILE hFile, OFSTRUCT *ofs, LPCSTR *modName )
 464 {
 465     HMODULE     hModule;
 466     HANDLE      mapping;
 467
 468     IMAGE_NT_HEADERS *nt;
 469     IMAGE_SECTION_HEADER *pe_sec;
 470     IMAGE_DATA_DIRECTORY *dir;
 471     BY_HANDLE_FILE_INFORMATION bhfi;
 472     int i, rawsize, lowest_va, lowest_fa, vma_size, file_size = 0;
 473     DWORD load_addr, aoep, reloc = 0;
 474
 475     /* Retrieve file size */
 476     if ( GetFileInformationByHandle( hFile, &bhfi ) )
 477         file_size = bhfi.nFileSizeLow; /* FIXME: 64 bit */
 478
 479     /* Map the PE file somewhere */
 480     mapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
 481                                     0, 0, NULL );
 482     if (!mapping)
 483     {
 484         WARN_(win32)("CreateFileMapping error %ld\n", GetLastError() );
 485         return 0;
 486     }
 487     hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 488     CloseHandle( mapping );
 489     if (!hModule)
 490     {
 491         WARN_(win32)("MapViewOfFile error %ld\n", GetLastError() );
 492         return 0;
 493     }
 494     nt = PE_HEADER( hModule );
 495
 496     /* Check signature */
 497     if ( nt->Signature != IMAGE_NT_SIGNATURE )
 498     {
 499         WARN_(win32)("image doesn't have PE signature, but 0x%08lx\n",
 500                     nt->Signature );
 501         goto error;
 502     }
 503
 504     /* Check architecture */
 505     if ( nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386 )
 506     {
 507         MESSAGE("Trying to load PE image for unsupported architecture (");
 508         switch (nt->FileHeader.Machine)
 509         {
 510         case IMAGE_FILE_MACHINE_UNKNOWN: MESSAGE("Unknown"); break;
 511         case IMAGE_FILE_MACHINE_I860:    MESSAGE("I860"); break;
 512         case IMAGE_FILE_MACHINE_R3000:   MESSAGE("R3000"); break;
 513         case IMAGE_FILE_MACHINE_R4000:   MESSAGE("R4000"); break;
 514         case IMAGE_FILE_MACHINE_R10000:  MESSAGE("R10000"); break;
 515         case IMAGE_FILE_MACHINE_ALPHA:   MESSAGE("Alpha"); break;
 516         case IMAGE_FILE_MACHINE_POWERPC: MESSAGE("PowerPC"); break;
 517         default: MESSAGE("Unknown-%04x", nt->FileHeader.Machine); break;
 518         }
 519         MESSAGE(")\n");
 520         goto error;
 521     }
 522
 523     /* Find out how large this executeable should be */
 524     pe_sec = PE_SECTIONS( hModule );
 525     rawsize = 0; lowest_va = 0x10000; lowest_fa = 0x10000;
 526     for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
 527     {
 528         if (lowest_va > pe_sec[i].VirtualAddress)
 529            lowest_va = pe_sec[i].VirtualAddress;
 530         if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 531             continue;
 532         if (pe_sec[i].PointerToRawData < lowest_fa)
 533             lowest_fa = pe_sec[i].PointerToRawData;
 534         if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize)
 535             rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData;
 536     }
 537
 538     /* Check file size */
 539     if ( file_size && file_size < rawsize )
 540     {
 541         ERR_(win32)("PE module is too small (header: %d, filesize: %d), "
 542                     "probably truncated download?\n",
 543                     rawsize, file_size );
 544         goto error;
 545     }
 546
 547     /* Check entrypoint address */
 548     aoep = nt->OptionalHeader.AddressOfEntryPoint;
 549     if (aoep && (aoep < lowest_va))
 550         FIXME_(win32)("WARNING: '%s' has an invalid entrypoint (0x%08lx) "
 551                       "below the first virtual address (0x%08x) "
 552                       "(possible Virus Infection or broken binary)!\n",
 553                        ofs->szPathName, aoep, lowest_va );
 554
 555
 556     /* Allocate memory for module */
 557     load_addr = nt->OptionalHeader.ImageBase;
 558     vma_size = calc_vma_size( hModule );
 559
 560     load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
 561                                      MEM_RESERVE | MEM_COMMIT,
 562                                      PAGE_EXECUTE_READWRITE );
 563     if (load_addr == 0)
 564     {
 565         /* We need to perform base relocations */
 566         dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BASERELOC;
 567         if (dir->Size)
 568             reloc = dir->VirtualAddress;
 569         else
 570         {
 571             FIXME_(win32)(
 572                    "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 573                    ofs->szPathName,
 574                    (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 575                    "stripped during link" : "unknown reason" );
 576             goto error;
 577         }
 578
 579         load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
 580                                          MEM_RESERVE | MEM_COMMIT,
 581                                          PAGE_EXECUTE_READWRITE );
 582     }
 583
 584     TRACE_(win32)("Load addr is %lx (base %lx), range %x\n",
 585                   load_addr, nt->OptionalHeader.ImageBase, vma_size );
 586     TRACE_(segment)("Loading %s at %lx, range %x\n",
 587                     ofs->szPathName, load_addr, vma_size );
 588
 589     /* Store the NT header at the load addr */
 590     *(PIMAGE_DOS_HEADER)load_addr = *(PIMAGE_DOS_HEADER)hModule;
 591     *PE_HEADER( load_addr ) = *nt;
 592     memcpy( PE_SECTIONS(load_addr), PE_SECTIONS(hModule),
 593             sizeof(IMAGE_SECTION_HEADER) * nt->FileHeader.NumberOfSections );
 594 #if 0
 595     /* Copies all stuff up to the first section. Including win32 viruses. */
 596     memcpy( load_addr, hModule, lowest_fa );
 597 #endif
 598
 599     /* Copy sections into module image */
 600     pe_sec = PE_SECTIONS( hModule );
 601     for (i = 0; i < nt->FileHeader.NumberOfSections; i++, pe_sec++)
 602     {
 603         /* memcpy only non-BSS segments */
 604         /* FIXME: this should be done by mmap(..MAP_PRIVATE|MAP_FIXED..)
 605          * but it is not possible for (at least) Linux needs
 606          * a page-aligned offset.
 607          */
 608         if(!(pe_sec->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA))
 609             memcpy((char*)RVA(pe_sec->VirtualAddress),
 610                    (char*)(hModule + pe_sec->PointerToRawData),
 611                    pe_sec->SizeOfRawData);
 612 #if 0
 613         /* not needed, memory is zero */
 614         if(strcmp(pe_sec->Name, ".bss") == 0)
 615             memset((void *)RVA(pe_sec->VirtualAddress), 0,
 616                    pe_sec->Misc.VirtualSize ?
 617                    pe_sec->Misc.VirtualSize :
 618                    pe_sec->SizeOfRawData);
 619 #endif
 620     }
 621
 622     /* Perform base relocation, if necessary */
 623     if ( reloc )
 624         do_relocations( load_addr, (IMAGE_BASE_RELOCATION *)RVA(reloc) );
 625
 626     /* Get module name */
 627     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 628     if (dir->Size)
 629         *modName = (LPCSTR)RVA(((PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress))->Name);
 630
 631     /* We don't need the orignal mapping any more */
 632     UnmapViewOfFile( (LPVOID)hModule );
 633     return (HMODULE)load_addr;
 634
 635 error:
 636     UnmapViewOfFile( (LPVOID)hModule );
 637     return 0;
 638 }
 639
 640 /**********************************************************************
 641  *                 PE_CreateModule
 642  *
 643  * Create WINE_MODREF structure for loaded HMODULE32, link it into
 644  * process modref_list, and fixup all imports.
 645  *
 646  * Note: hModule must point to a correctly allocated PE image,
 647  *       with base relocations applied; the 16-bit dummy module
 648  *       associated to hModule must already exist.
 649  *
 650  * Note: This routine must always be called in the context of the
 651  *       process that is to own the module to be created.
 652  */
 653 WINE_MODREF *PE_CreateModule( HMODULE hModule,
 654                               OFSTRUCT *ofs, DWORD flags, BOOL builtin )
 655 {
 656     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 657     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 658     IMAGE_DATA_DIRECTORY *dir;
 659     IMAGE_IMPORT_DESCRIPTOR *pe_import = NULL;
 660     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 661     IMAGE_RESOURCE_DIRECTORY *pe_resource = NULL;
 662     WINE_MODREF *wm;
 663     int result;
 664     char *modname;
 665
 666
 667     /* Retrieve DataDirectory entries */
 668
 669     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 670     if (dir->Size)
 671         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 672
 673     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IMPORT;
 674     if (dir->Size)
 675         pe_import = (PIMAGE_IMPORT_DESCRIPTOR)RVA(dir->VirtualAddress);
 676
 677     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE;
 678     if (dir->Size)
 679         pe_resource = (PIMAGE_RESOURCE_DIRECTORY)RVA(dir->VirtualAddress);
 680
 681     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 682     if (dir->Size) FIXME_(win32)("Exception directory ignored\n" );
 683
 684     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 685     if (dir->Size) FIXME_(win32)("Security directory ignored\n" );
 686
 687     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 688     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 689
 690     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DEBUG;
 691     if (dir->Size) TRACE_(win32)("Debug directory ignored\n" );
 692
 693     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COPYRIGHT;
 694     if (dir->Size) FIXME_(win32)("Copyright string ignored\n" );
 695
 696     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 697     if (dir->Size) FIXME_(win32)("Global Pointer (MIPS) ignored\n" );
 698
 699     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 700
 701     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 702     if (dir->Size) FIXME_(win32)("Load Configuration directory ignored\n" );
 703
 704     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 705     if (dir->Size) TRACE_(win32)("Bound Import directory ignored\n" );
 706
 707     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 708     if (dir->Size) TRACE_(win32)("Import Address Table directory ignored\n" );
 709
 710     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 711     if (dir->Size)
 712     {
 713                 TRACE_(win32)("Delayed import, stub calls LoadLibrary\n" );
 714                 /*
 715                  * Nothing to do here.
 716                  */
 717
 718 #ifdef ImgDelayDescr
 719                 /*
 720                  * This code is useful to observe what the heck is going on.
 721                  */
 722                 {
 723                 ImgDelayDescr *pe_delay = NULL;
 724         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 725         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 726         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 727         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 728         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 729         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 730         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 731         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 732         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 733         }
 734 #endif /* ImgDelayDescr */
 735         }
 736
 737     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 738     if (dir->Size) FIXME_(win32)("Unknown directory 14 ignored\n" );
 739
 740     dir = nt->OptionalHeader.DataDirectory+15;
 741     if (dir->Size) FIXME_(win32)("Unknown directory 15 ignored\n" );
 742
 743
 744     /* Allocate and fill WINE_MODREF */
 745
 746     wm = (WINE_MODREF *)HeapAlloc( GetProcessHeap(),
 747                                    HEAP_ZERO_MEMORY, sizeof(*wm) );
 748     wm->module = hModule;
 749
 750     if ( builtin )
 751         wm->flags |= WINE_MODREF_INTERNAL;
 752     if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 753         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 754     if ( flags & LOAD_LIBRARY_AS_DATAFILE )
 755         wm->flags |= WINE_MODREF_LOAD_AS_DATAFILE;
 756
 757     wm->type = MODULE32_PE;
 758     wm->binfmt.pe.pe_export = pe_export;
 759     wm->binfmt.pe.pe_import = pe_import;
 760     wm->binfmt.pe.pe_resource = pe_resource;
 761     wm->binfmt.pe.tlsindex = -1;
 762
 763     if ( pe_export )
 764         modname = (char *)RVA( pe_export->Name );
 765     else
 766     {
 767         /* try to find out the name from the OFSTRUCT */
 768         char *s;
 769         modname = ofs->szPathName;
 770         if ((s=strrchr(modname,'\\'))) modname = s+1;
 771     }
 772     wm->modname = HEAP_strdupA( GetProcessHeap(), 0, modname );
 773
 774     result = GetLongPathNameA( ofs->szPathName, NULL, 0 );
 775     wm->longname = (char *)HeapAlloc( GetProcessHeap(), 0, result+1 );
 776     GetLongPathNameA( ofs->szPathName, wm->longname, result+1 );
 777
 778     wm->shortname = HEAP_strdupA( GetProcessHeap(), 0, ofs->szPathName );
 779
 780     /* Link MODREF into process list */
 781
 782     EnterCriticalSection( &PROCESS_Current()->crit_section );
 783
 784     wm->next = PROCESS_Current()->modref_list;
 785     PROCESS_Current()->modref_list = wm;
 786     if ( wm->next ) wm->next->prev = wm;
 787
 788     if ( !(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) )
 789     {
 790         if ( PROCESS_Current()->exe_modref )
 791             FIXME_(win32)("overwriting old exe_modref... arrgh\n" );
 792         PROCESS_Current()->exe_modref = wm;
 793     }
 794
 795     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 796
 797
 798     /* Dump Exports */
 799
 800     if ( pe_export )
 801         dump_exports( hModule );
 802
 803     /* Fixup Imports */
 804
 805     if (    pe_import && fixup_imports( wm )
 806          && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE )
 807          && !( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS ) )
 808     {
 809         /* remove entry from modref chain */
 810         EnterCriticalSection( &PROCESS_Current()->crit_section );
 811
 812         if ( !wm->prev )
 813             PROCESS_Current()->modref_list = wm->next;
 814         else
 815             wm->prev->next = wm->next;
 816
 817         if ( wm->next ) wm->next->prev = wm->prev;
 818         wm->next = wm->prev = NULL;
 819
 820         LeaveCriticalSection( &PROCESS_Current()->crit_section );
 821
 822         /* FIXME: there are several more dangling references
 823          * left. Including dlls loaded by this dll before the
 824          * failed one. Unrolling is rather difficult with the
 825          * current structure and we can leave it them lying
 826          * around with no problems, so we don't care.
 827          * As these might reference our wm, we don't free it.
 828          */
 829          return NULL;
 830     }
 831
 832     return wm;
 833 }
 834
 835 /******************************************************************************
 836  * The PE Library Loader frontend.
 837  * FIXME: handle the flags.
 838  */
 839 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags, DWORD *err)
 840 {
 841         LPCSTR          modName = NULL;
 842         OFSTRUCT        ofs;
 843         HMODULE         hModule32;
 844         HMODULE16       hModule16;
 845         NE_MODULE       *pModule;
 846         WINE_MODREF     *wm;
 847         char            dllname[256], *p;
 848         HFILE           hFile;
 849
 850         /* Append .DLL to name if no extension present */
 851         strcpy( dllname, name );
 852         if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 853                 strcat( dllname, ".DLL" );
 854
 855         /* Load PE module */
 856         hFile = OpenFile( dllname, &ofs, OF_READ | OF_SHARE_DENY_WRITE );
 857         if ( hFile != HFILE_ERROR )
 858         {
 859                 hModule32 = PE_LoadImage( hFile, &ofs, &modName );
 860                 CloseHandle( hFile );
 861                 if(!hModule32)
 862                 {
 863                         *err = ERROR_OUTOFMEMORY;       /* Not entirely right, but good enough */
 864                         return NULL;
 865                 }
 866         }
 867         else
 868         {
 869                 *err = ERROR_FILE_NOT_FOUND;
 870                 return NULL;
 871         }
 872
 873         /* Create 16-bit dummy module */
 874         if ((hModule16 = MODULE_CreateDummyModule( &ofs, modName )) < 32)
 875         {
 876                 *err = (DWORD)hModule16;        /* This should give the correct error */
 877                 return NULL;
 878         }
 879         pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 880         pModule->flags    = NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA | NE_FFLAGS_WIN32;
 881         pModule->module32 = hModule32;
 882
 883         /* Create 32-bit MODREF */
 884         if ( !(wm = PE_CreateModule( hModule32, &ofs, flags, FALSE )) )
 885         {
 886                 ERR_(win32)("can't load %s\n",ofs.szPathName);
 887                 FreeLibrary16( hModule16 );
 888                 *err = ERROR_OUTOFMEMORY;
 889                 return NULL;
 890         }
 891
 892         if (wm->binfmt.pe.pe_export)
 893                 SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
 894
 895         *err = 0;
 896         return wm;
 897 }
 898
 899
 900 /*****************************************************************************
 901  *      PE_UnloadLibrary
 902  *
 903  * Unload the library unmapping the image and freeing the modref structure.
 904  */
 905 void PE_UnloadLibrary(WINE_MODREF *wm)
 906 {
 907         /* FIXME, do something here */
 908 }
 909
 910 /*****************************************************************************
 911  * Load the PE main .EXE. All other loading is done by PE_LoadLibraryExA
 912  * FIXME: this function should use PE_LoadLibraryExA, but currently can't
 913  * due to the PROCESS_Create stuff.
 914  */
 915 BOOL PE_CreateProcess( HFILE hFile, OFSTRUCT *ofs, LPCSTR cmd_line, LPCSTR env,
 916                        LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 917                        BOOL inherit, LPSTARTUPINFOA startup,
 918                        LPPROCESS_INFORMATION info )
 919 {
 920     LPCSTR modName = NULL;
 921     HMODULE16 hModule16;
 922     HMODULE hModule32;
 923     NE_MODULE *pModule;
 924
 925     /* Load file */
 926     if ( (hModule32 = PE_LoadImage( hFile, ofs, &modName )) < 32 )
 927     {
 928         SetLastError( hModule32 );
 929         return FALSE;
 930     }
 931 #if 0
 932     if (PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 933     {
 934         SetLastError( 20 );  /* FIXME: not the right error code */
 935         return FALSE;
 936     }
 937 #endif
 938
 939     /* Create 16-bit dummy module */
 940     if ( (hModule16 = MODULE_CreateDummyModule( ofs, modName )) < 32 )
 941     {
 942         SetLastError( hModule16 );
 943         return FALSE;
 944     }
 945     pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 946     pModule->flags    = NE_FFLAGS_WIN32;
 947     pModule->module32 = hModule32;
 948
 949     /* Create new process */
 950     if ( !PROCESS_Create( pModule, cmd_line, env,
 951                           0, 0, psa, tsa, inherit, startup, info ) )
 952         return FALSE;
 953
 954     /* Note: PE_CreateModule and the remaining process initialization will
 955              be done in the context of the new process, in TASK_CallToStart */
 956
 957     return TRUE;
 958 }
 959
 960 /*********************************************************************
 961  * PE_UnloadImage [internal]
 962  */
 963 int PE_UnloadImage( HMODULE hModule )
 964 {
 965         FIXME_(win32)("stub.\n");
 966         /* free resources, image, unmap */
 967         return 1;
 968 }
 969
 970 /* Called if the library is loaded or freed.
 971  * NOTE: if a thread attaches a DLL, the current thread will only do
 972  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 973  * (SDK)
 974  */
 975 BOOL PE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
 976 {
 977     BOOL retv = TRUE;
 978     assert( wm->type == MODULE32_PE );
 979
 980     /* Is this a library? And has it got an entrypoint? */
 981     if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 982         (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
 983     ) {
 984         DLLENTRYPROC entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
 985         TRACE_(relay)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 986                        entry, wm->module, type, lpReserved );
 987
 988         retv = entry( wm->module, type, lpReserved );
 989     }
 990
 991     return retv;
 992 }
 993
 994 /************************************************************************
 995  *      PE_InitTls                      (internal)
 996  *
 997  * If included, initialises the thread local storages of modules.
 998  * Pointers in those structs are not RVAs but real pointers which have been
 999  * relocated by do_relocations() already.
1000  */
1001 void PE_InitTls( void )
1002 {
1003         WINE_MODREF             *wm;
1004         PE_MODREF               *pem;
1005         IMAGE_NT_HEADERS        *peh;
1006         DWORD                   size,datasize;
1007         LPVOID                  mem;
1008         PIMAGE_TLS_DIRECTORY    pdir;
1009         int delta;
1010
1011         for (wm = PROCESS_Current()->modref_list;wm;wm=wm->next) {
1012                 if (wm->type!=MODULE32_PE)
1013                         continue;
1014                 pem = &(wm->binfmt.pe);
1015                 peh = PE_HEADER(wm->module);
1016                 delta = wm->module - peh->OptionalHeader.ImageBase;
1017                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
1018                         continue;
1019                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
1020                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
1021
1022
1023                 if ( pem->tlsindex == -1 ) {
1024                         pem->tlsindex = TlsAlloc();
1025                         *pdir->AddressOfIndex=pem->tlsindex;
1026                 }
1027                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
1028                 size    = datasize + pdir->SizeOfZeroFill;
1029                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
1030                 memcpy(mem,(LPVOID)pdir->StartAddressOfRawData,datasize);
1031                 if (pdir->AddressOfCallBacks) {
1032                      PIMAGE_TLS_CALLBACK *cbs =
1033                        (PIMAGE_TLS_CALLBACK *)pdir->AddressOfCallBacks;
1034
1035                      if (*cbs)
1036                        FIXME_(win32)("TLS Callbacks aren't going to be called\n");
1037                 }
1038
1039                 TlsSetValue( pem->tlsindex, mem );
1040         }
1041 }
1042