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  * - All those function map things into a new addresspace. From the wrong
  35  *   process and the wrong thread. So calling other API functions will mess
  36  *   things up badly sometimes.
  37  */
  38
  39 #include <errno.h>
  40 #include <assert.h>
  41 #include <stdlib.h>
  42 #include <string.h>
  43 #include <unistd.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <sys/mman.h>
  47 #include "windows.h"
  48 #include "winbase.h"
  49 #include "callback.h"
  50 #include "file.h"
  51 #include "heap.h"
  52 #include "neexe.h"
  53 #include "peexe.h"
  54 #include "process.h"
  55 #include "thread.h"
  56 #include "pe_image.h"
  57 #include "module.h"
  58 #include "global.h"
  59 #include "task.h"
  60 #include "snoop.h"
  61 #include "debug.h"
  62
  63
  64 /* convert PE image VirtualAddress to Real Address */
  65 #define RVA(x) ((unsigned int)load_addr+(unsigned int)(x))
  66
  67 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  68
  69 void dump_exports( HMODULE32 hModule )
  70 {
  71   char          *Module;
  72   int           i, j;
  73   u_short       *ordinal;
  74   u_long        *function,*functions;
  75   u_char        **name;
  76   unsigned int load_addr = hModule;
  77
  78   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  79                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
  80   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
  81                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
  82   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
  83
  84   Module = (char*)RVA(pe_exports->Name);
  85   TRACE(win32,"*******EXPORT DATA*******\n");
  86   TRACE(win32,"Module name is %s, %ld functions, %ld names\n",
  87                Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
  88
  89   ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
  90   functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
  91   name=(u_char**) RVA(pe_exports->AddressOfNames);
  92
  93   TRACE(win32," Ord    RVA     Addr   Name\n" );
  94   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
  95   {
  96       if (!*function) continue;  /* No such function */
  97       if (TRACE_ON(win32)){
  98         dbg_decl_str(win32, 1024);
  99
 100         dsprintf(win32,"%4ld %08lx %08x",
 101                  i + pe_exports->Base, *function, RVA(*function) );
 102         /* Check if we have a name for it */
 103         for (j = 0; j < pe_exports->NumberOfNames; j++)
 104           if (ordinal[j] == i)
 105             dsprintf(win32, "  %s", (char*)RVA(name[j]) );
 106         if ((*function >= rva_start) && (*function <= rva_end))
 107           dsprintf(win32, " (forwarded -> %s)", (char *)RVA(*function));
 108         TRACE(win32,"%s\n", dbg_str(win32));
 109       }
 110   }
 111 }
 112
 113 /* Look up the specified function or ordinal in the exportlist:
 114  * If it is a string:
 115  *      - look up the name in the Name list.
 116  *      - look up the ordinal with that index.
 117  *      - use the ordinal as offset into the functionlist
 118  * If it is a ordinal:
 119  *      - use ordinal-pe_export->Base as offset into the functionlist
 120  */
 121 FARPROC32 PE_FindExportedFunction(
 122         PDB32 *process,         /* [in] process context */
 123         WINE_MODREF *wm,        /* [in] WINE modreference */
 124         LPCSTR funcName,        /* [in] function name */
 125         BOOL32 snoop )
 126 {
 127         u_short                         * ordinal;
 128         u_long                          * function;
 129         u_char                          ** name, *ename;
 130         int                             i;
 131         PE_MODREF                       *pem = &(wm->binfmt.pe);
 132         IMAGE_EXPORT_DIRECTORY          *exports = pem->pe_export;
 133         unsigned int                    load_addr = wm->module;
 134         u_long                          rva_start, rva_end, addr;
 135         char                            * forward;
 136
 137         if (HIWORD(funcName))
 138                 TRACE(win32,"(%s)\n",funcName);
 139         else
 140                 TRACE(win32,"(%d)\n",(int)funcName);
 141         if (!exports) {
 142                 /* Not a fatal problem, some apps do
 143                  * GetProcAddress(0,"RegisterPenApp") which triggers this
 144                  * case.
 145                  */
 146                 WARN(win32,"Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,pem);
 147                 return NULL;
 148         }
 149         ordinal = (u_short*)  RVA(exports->AddressOfNameOrdinals);
 150         function= (u_long*)   RVA(exports->AddressOfFunctions);
 151         name    = (u_char **) RVA(exports->AddressOfNames);
 152         forward = NULL;
 153         rva_start = PE_HEADER(wm->module)->OptionalHeader
 154                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 155         rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
 156                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 157
 158         if (HIWORD(funcName)) {
 159                 for(i=0; i<exports->NumberOfNames; i++) {
 160                         ename=(char*)RVA(*name);
 161                         if(!strcmp(ename,funcName))
 162                         {
 163                             addr = function[*ordinal];
 164                             if (!addr) return NULL;
 165                             if ((addr < rva_start) || (addr >= rva_end))
 166                                 return snoop? SNOOP_GetProcAddress32(wm->module,ename,*ordinal,(FARPROC32)RVA(addr))
 167                                             : (FARPROC32)RVA(addr);
 168                             forward = (char *)RVA(addr);
 169                             break;
 170                         }
 171                         ordinal++;
 172                         name++;
 173                 }
 174         } else  {
 175                 int i;
 176                 if (LOWORD(funcName)-exports->Base > exports->NumberOfFunctions) {
 177                         TRACE(win32,"   ordinal %d out of range!\n",
 178                                       LOWORD(funcName));
 179                         return NULL;
 180                 }
 181                 addr = function[(int)funcName-exports->Base];
 182                 if (!addr) return NULL;
 183                 ename = "";
 184                 if (name) {
 185                     for (i=0;i<exports->NumberOfNames;i++) {
 186                             ename = (char*)RVA(*name);
 187                             if (*ordinal == LOWORD(funcName)-exports->Base)
 188                                 break;
 189                             ordinal++;
 190                             name++;
 191                     }
 192                     if (i==exports->NumberOfNames)
 193                         ename = "";
 194                 }
 195                 if ((addr < rva_start) || (addr >= rva_end))
 196                         return snoop? SNOOP_GetProcAddress32(wm->module,ename,(DWORD)funcName-exports->Base,(FARPROC32)RVA(addr))
 197                                     : (FARPROC32)RVA(addr);
 198                 forward = (char *)RVA(addr);
 199         }
 200         if (forward)
 201         {
 202                 HMODULE32 hMod;
 203                 char module[256];
 204                 char *end = strchr(forward, '.');
 205
 206                 if (!end) return NULL;
 207                 assert(end-forward<256);
 208                 strncpy(module, forward, (end - forward));
 209                 module[end-forward] = 0;
 210                 hMod = MODULE_FindModule32(process,module);
 211                 assert(hMod);
 212                 return MODULE_GetProcAddress32( process, hMod, end + 1, snoop );
 213         }
 214         return NULL;
 215 }
 216
 217 DWORD fixup_imports (PDB32 *process,WINE_MODREF *wm)
 218 {
 219     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 220     WINE_MODREF                 *xwm;
 221     PE_MODREF                   *pem;
 222     unsigned int load_addr      = wm->module;
 223     int                         i,characteristics_detection=1;
 224     char                        *modname;
 225
 226     assert(wm->type==MODULE32_PE);
 227     pem = &(wm->binfmt.pe);
 228     if (pem->pe_export)
 229         modname = (char*) RVA(pem->pe_export->Name);
 230     else
 231         modname = "<unknown>";
 232
 233     /* OK, now dump the import list */
 234     TRACE(win32, "Dumping imports list\n");
 235
 236     /* first, count the number of imported non-internal modules */
 237     pe_imp = pem->pe_import;
 238     if (!pe_imp)
 239         ERR(win32, "no import directory????\n");
 240
 241     /* We assume that we have at least one import with !0 characteristics and
 242      * detect broken imports with all characteristsics 0 (notably Borland) and
 243      * switch the detection off for them.
 244      */
 245     for (i = 0; pe_imp->Name ; pe_imp++) {
 246         if (!i && !pe_imp->u.Characteristics)
 247                 characteristics_detection = 0;
 248         if (characteristics_detection && !pe_imp->u.Characteristics)
 249                 break;
 250         i++;
 251     }
 252
 253     /* Allocate module dependency list */
 254     wm->nDeps = i;
 255     wm->deps  = HeapAlloc(process->heap, 0, i*sizeof(WINE_MODREF *));
 256
 257     /* load the imported modules. They are automatically
 258      * added to the modref list of the process.
 259      */
 260
 261     for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) {
 262         HMODULE32               hImpModule;
 263         IMAGE_IMPORT_BY_NAME    *pe_name;
 264         PIMAGE_THUNK_DATA       import_list,thunk_list;
 265         char                    *name = (char *) RVA(pe_imp->Name);
 266
 267         if (characteristics_detection && !pe_imp->u.Characteristics)
 268                 break;
 269
 270         /* don't use MODULE_Load, Win32 creates new task differently */
 271         hImpModule = MODULE_LoadLibraryEx32A( name, process, 0, 0 );
 272         if (!hImpModule) {
 273             char *p,buffer[2000];
 274
 275             /* GetModuleFileName would use the wrong process, so don't use it */
 276             strcpy(buffer,wm->shortname);
 277             if (!(p = strrchr (buffer, '\\')))
 278                 p = buffer;
 279             strcpy (p + 1, name);
 280             hImpModule = MODULE_LoadLibraryEx32A( buffer, process, 0, 0 );
 281         }
 282         if (!hImpModule) {
 283             ERR (module, "Module %s not found\n", name);
 284             return 1;
 285         }
 286         xwm = MODULE32_LookupHMODULE(process, hImpModule);
 287         assert( xwm );
 288         wm->deps[i++] = xwm;
 289
 290         /* FIXME: forwarder entries ... */
 291
 292         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 293             TRACE(win32, "Microsoft style imports used\n");
 294             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 295             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 296
 297             while (import_list->u1.Ordinal) {
 298                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 299                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 300
 301                     TRACE(win32, "--- Ordinal %s,%d\n", name, ordinal);
 302                     thunk_list->u1.Function=MODULE_GetProcAddress32(
 303                         process, hImpModule, (LPCSTR)ordinal, TRUE
 304                     );
 305                     if (!thunk_list->u1.Function) {
 306                         ERR(win32,"No implementation for %s.%d, setting to 0xdeadbeef\n",
 307                                 name, ordinal);
 308                         thunk_list->u1.Function = (FARPROC32)0xdeadbeef;
 309                     }
 310                 } else {                /* import by name */
 311                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 312                     TRACE(win32, "--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 313                     thunk_list->u1.Function=MODULE_GetProcAddress32(
 314                         process, hImpModule, pe_name->Name, TRUE
 315                     );
 316                     if (!thunk_list->u1.Function) {
 317                         ERR(win32,"No implementation for %s.%d(%s), setting to 0xdeadbeef\n",
 318                                 name,pe_name->Hint,pe_name->Name);
 319                         thunk_list->u1.Function = (FARPROC32)0xdeadbeef;
 320                     }
 321                 }
 322                 import_list++;
 323                 thunk_list++;
 324             }
 325         } else {        /* Borland style */
 326             TRACE(win32, "Borland style imports used\n");
 327             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 328             while (thunk_list->u1.Ordinal) {
 329                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 330                     /* not sure about this branch, but it seems to work */
 331                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 332
 333                     TRACE(win32,"--- Ordinal %s.%d\n",name,ordinal);
 334                     thunk_list->u1.Function=MODULE_GetProcAddress32(
 335                         process, hImpModule, (LPCSTR) ordinal, TRUE
 336                     );
 337                     if (!thunk_list->u1.Function) {
 338                         ERR(win32, "No implementation for %s.%d, setting to 0xdeadbeef\n",
 339                                 name,ordinal);
 340                         thunk_list->u1.Function = (FARPROC32)0xdeadbeef;
 341                     }
 342                 } else {
 343                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 344                     TRACE(win32,"--- %s %s.%d\n",
 345                                   pe_name->Name,name,pe_name->Hint);
 346                     thunk_list->u1.Function=MODULE_GetProcAddress32(
 347                         process, hImpModule, pe_name->Name, TRUE
 348                     );
 349                     if (!thunk_list->u1.Function) {
 350                         ERR(win32, "No implementation for %s.%d, setting to 0xdeadbeef\n",
 351                                 name, pe_name->Hint);
 352                         thunk_list->u1.Function = (FARPROC32)0xdeadbeef;
 353                     }
 354                 }
 355                 thunk_list++;
 356             }
 357         }
 358     }
 359     return 0;
 360 }
 361
 362 static int calc_vma_size( HMODULE32 hModule )
 363 {
 364     int i,vma_size = 0;
 365     IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
 366
 367     TRACE(win32, "Dump of segment table\n");
 368     TRACE(win32, "   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 369     for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
 370     {
 371         TRACE(win32, "%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 372                       pe_seg->Name,
 373                       pe_seg->Misc.VirtualSize,
 374                       pe_seg->VirtualAddress,
 375                       pe_seg->SizeOfRawData,
 376                       pe_seg->PointerToRawData,
 377                       pe_seg->PointerToRelocations,
 378                       pe_seg->PointerToLinenumbers,
 379                       pe_seg->NumberOfRelocations,
 380                       pe_seg->NumberOfLinenumbers,
 381                       pe_seg->Characteristics);
 382         vma_size=MAX(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
 383         vma_size=MAX(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize);
 384         pe_seg++;
 385     }
 386     return vma_size;
 387 }
 388
 389 static void do_relocations(WINE_MODREF *wm)
 390 {
 391     PE_MODREF   *pem = &(wm->binfmt.pe);
 392     int delta = wm->module - PE_HEADER(wm->module)->OptionalHeader.ImageBase;
 393     unsigned int load_addr= wm->module;
 394
 395         IMAGE_BASE_RELOCATION           *r = pem->pe_reloc;
 396         int                             hdelta = (delta >> 16) & 0xFFFF;
 397         int                             ldelta = delta & 0xFFFF;
 398
 399         /* int reloc_size = */
 400
 401         if(delta == 0)
 402                 /* Nothing to do */
 403                 return;
 404         while(r->VirtualAddress)
 405         {
 406                 char *page = (char*) RVA(r->VirtualAddress);
 407                 int count = (r->SizeOfBlock - 8)/2;
 408                 int i;
 409                 TRACE(fixup, "%x relocations for page %lx\n",
 410                         count, r->VirtualAddress);
 411                 /* patching in reverse order */
 412                 for(i=0;i<count;i++)
 413                 {
 414                         int offset = r->TypeOffset[i] & 0xFFF;
 415                         int type = r->TypeOffset[i] >> 12;
 416                         TRACE(fixup,"patching %x type %x\n", offset, type);
 417                         switch(type)
 418                         {
 419                         case IMAGE_REL_BASED_ABSOLUTE: break;
 420                         case IMAGE_REL_BASED_HIGH:
 421                                 *(short*)(page+offset) += hdelta;
 422                                 break;
 423                         case IMAGE_REL_BASED_LOW:
 424                                 *(short*)(page+offset) += ldelta;
 425                                 break;
 426                         case IMAGE_REL_BASED_HIGHLOW:
 427 #if 1
 428                                 *(int*)(page+offset) += delta;
 429 #else
 430                                 { int h=*(unsigned short*)(page+offset);
 431                                   int l=r->TypeOffset[++i];
 432                                   *(unsigned int*)(page + offset) = (h<<16) + l + delta;
 433                                 }
 434 #endif
 435                                 break;
 436                         case IMAGE_REL_BASED_HIGHADJ:
 437                                 WARN(win32, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 438                                 break;
 439                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 440                                 WARN(win32, "Is this a MIPS machine ???\n");
 441                                 break;
 442                         default:
 443                                 WARN(win32, "Unknown fixup type\n");
 444                                 break;
 445                         }
 446                 }
 447                 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
 448         }
 449 }
 450
 451
 452
 453
 454
 455 /**********************************************************************
 456  *                      PE_LoadImage
 457  * Load one PE format DLL/EXE into memory
 458  *
 459  * Unluckily we can't just mmap the sections where we want them, for
 460  * (at least) Linux does only support offsets which are page-aligned.
 461  *
 462  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 463  * want to access them. (HMODULE32 point to the start of it)
 464  */
 465 static HMODULE32 PE_LoadImage( HFILE32 hFile )
 466 {
 467     HMODULE32   hModule;
 468     HANDLE32    mapping;
 469     int         i,rawsize = 0;
 470     IMAGE_SECTION_HEADER        *pe_sec;
 471     BY_HANDLE_FILE_INFORMATION  bhfi;
 472
 473
 474     /* map the PE file somewhere */
 475     mapping = CreateFileMapping32A( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
 476                                     0, 0, NULL );
 477     if (!mapping)
 478     {
 479         WARN( win32, "CreateFileMapping error %ld\n",
 480                  GetLastError() );
 481         return 0;
 482     }
 483     hModule = (HMODULE32)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 484     CloseHandle( mapping );
 485     if (!hModule)
 486     {
 487         WARN( win32, "PE_LoadImage: MapViewOfFile error %ld\n",
 488                  GetLastError() );
 489         return 0;
 490     }
 491
 492     if (PE_HEADER(hModule)->Signature != IMAGE_NT_SIGNATURE)
 493     {
 494         WARN(win32,"image doesn't have PE signature, but 0x%08lx\n",
 495                 PE_HEADER(hModule)->Signature );
 496         goto error;
 497     }
 498
 499     if (PE_HEADER(hModule)->FileHeader.Machine != IMAGE_FILE_MACHINE_I386)
 500     {
 501         MSG("Trying to load PE image for unsupported architecture (");
 502         switch (PE_HEADER(hModule)->FileHeader.Machine)
 503         {
 504         case IMAGE_FILE_MACHINE_UNKNOWN: MSG("Unknown"); break;
 505         case IMAGE_FILE_MACHINE_I860:    MSG("I860"); break;
 506         case IMAGE_FILE_MACHINE_R3000:   MSG("R3000"); break;
 507         case IMAGE_FILE_MACHINE_R4000:   MSG("R4000"); break;
 508         case IMAGE_FILE_MACHINE_R10000:  MSG("R10000"); break;
 509         case IMAGE_FILE_MACHINE_ALPHA:   MSG("Alpha"); break;
 510         case IMAGE_FILE_MACHINE_POWERPC: MSG("PowerPC"); break;
 511         default: MSG("Unknown-%04x",
 512                          PE_HEADER(hModule)->FileHeader.Machine); break;
 513         }
 514         MSG(")\n");
 515         goto error;
 516     }
 517     /* find out how large this executeable should be */
 518     pe_sec = PE_SECTIONS(hModule);
 519     for (i=0;i<PE_HEADER(hModule)->FileHeader.NumberOfSections;i++) {
 520         if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 521             continue;
 522         if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize)
 523             rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData;
 524     }
 525     if (GetFileInformationByHandle(hFile,&bhfi)) {
 526         /* FIXME: 64 bit */
 527         if (bhfi.nFileSizeLow < rawsize) {
 528             ERR(win32,"PE module is too small (header: %d, filesize: %d), probably truncated download?\n",rawsize,bhfi.nFileSizeLow);
 529             goto error;
 530         }
 531     }
 532     /* Else ... Hmm, we have opened it, so we should be able to get info?
 533      * Anyway, don't care in this case
 534      */
 535     return hModule;
 536
 537 error:
 538     UnmapViewOfFile( (LPVOID)hModule );
 539     return 0;
 540 }
 541
 542 /**********************************************************************
 543  * This maps a loaded PE dll into the address space of the specified process.
 544  */
 545 static BOOL32 PE_MapImage( PDB32 *process,WINE_MODREF *wm, OFSTRUCT *ofs, DWORD flags )
 546 {
 547         PE_MODREF               *pem;
 548         int                     i, result;
 549         DWORD                   load_addr;
 550         IMAGE_DATA_DIRECTORY    dir;
 551         char                    *modname;
 552         int                     vma_size;
 553         HMODULE32               hModule = wm->module;
 554
 555         IMAGE_SECTION_HEADER *pe_seg;
 556         IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hModule;
 557         IMAGE_NT_HEADERS *nt_header = PE_HEADER(hModule);
 558
 559         pem     = &(wm->binfmt.pe);
 560
 561         result = GetLongPathName32A(ofs->szPathName,NULL,0);
 562         wm->longname = (char*)HeapAlloc(process->heap,0,result+1);
 563         GetLongPathName32A(ofs->szPathName,wm->longname,result+1);
 564
 565         wm->shortname = HEAP_strdupA(process->heap,0,ofs->szPathName);
 566
 567         if (!(nt_header->FileHeader.Characteristics & IMAGE_FILE_DLL))
 568         {
 569                 if (process->exe_modref)
 570                         FIXME(win32,"overwriting old exe_modref... arrgh\n");
 571                 process->exe_modref = wm;
 572         }
 573
 574         load_addr = nt_header->OptionalHeader.ImageBase;
 575         vma_size = calc_vma_size( hModule );
 576         TRACE(win32, "Load addr is %lx\n",load_addr);
 577         load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
 578                                          MEM_RESERVE | MEM_COMMIT,
 579                                          PAGE_EXECUTE_READWRITE );
 580         if (load_addr == 0) {
 581                 load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
 582                                                  MEM_RESERVE | MEM_COMMIT,
 583                                                  PAGE_EXECUTE_READWRITE );
 584         }
 585         /* NOTE: this changes a value in the process modref chain, which can
 586          * be accessed independently from this function
 587          */
 588         wm->module = (HMODULE32)load_addr;
 589
 590         TRACE(win32, "Load addr is really %lx, range %x\n",
 591                       load_addr, vma_size);
 592
 593         TRACE(segment, "Loading %s at %lx, range %x\n",
 594               ofs->szPathName, load_addr, vma_size );
 595
 596         /* Store the NT header at the load addr
 597          * (FIXME: should really use mmap)
 598          */
 599         *(IMAGE_DOS_HEADER *)load_addr = *dos_header;
 600         *(IMAGE_NT_HEADERS *)(load_addr + dos_header->e_lfanew) = *nt_header;
 601         memcpy(PE_SECTIONS(load_addr),PE_SECTIONS(hModule),sizeof(IMAGE_SECTION_HEADER)*nt_header->FileHeader.NumberOfSections);
 602
 603         pe_seg = PE_SECTIONS(hModule);
 604         for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++, pe_seg++)
 605         {
 606                 /* memcpy only non-BSS segments */
 607                 /* FIXME: this should be done by mmap(..MAP_PRIVATE|MAP_FIXED..)
 608                  * but it is not possible for (at least) Linux needs
 609                  * a page-aligned offset.
 610                  */
 611                 if(!(pe_seg->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA))
 612                     memcpy((char*)RVA(pe_seg->VirtualAddress),
 613                         (char*)(hModule + pe_seg->PointerToRawData),
 614                         pe_seg->SizeOfRawData
 615                     );
 616
 617                 result = RVA (pe_seg->VirtualAddress);
 618 #if 1
 619                 /* not needed, memory is zero */
 620                 if(strcmp(pe_seg->Name, ".bss") == 0)
 621                     memset((void *)result, 0,
 622                            pe_seg->Misc.VirtualSize ?
 623                            pe_seg->Misc.VirtualSize :
 624                            pe_seg->SizeOfRawData);
 625 #endif
 626
 627                 if(strcmp(pe_seg->Name, ".idata") == 0)
 628                         pem->pe_import = (PIMAGE_IMPORT_DESCRIPTOR) result;
 629
 630                 if(strcmp(pe_seg->Name, ".edata") == 0)
 631                         pem->pe_export = (PIMAGE_EXPORT_DIRECTORY) result;
 632
 633                 if(strcmp(pe_seg->Name, ".rsrc") == 0)
 634                         pem->pe_resource = (PIMAGE_RESOURCE_DIRECTORY) result;
 635
 636                 if(strcmp(pe_seg->Name, ".reloc") == 0)
 637                         pem->pe_reloc = (PIMAGE_BASE_RELOCATION) result;
 638         }
 639
 640         /* There is word that the actual loader does not care about the
 641            section names, and only goes for the DataDirectory */
 642         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT];
 643         if(dir.Size)
 644         {
 645                 if(pem->pe_export && (int)pem->pe_export!=RVA(dir.VirtualAddress))
 646                         WARN(win32,"wrong export directory??\n");
 647                 /* always trust the directory */
 648                 pem->pe_export = (PIMAGE_EXPORT_DIRECTORY) RVA(dir.VirtualAddress);
 649         }
 650
 651         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
 652         if(dir.Size)
 653         {
 654                 /*
 655                 if(pem->pe_import && (int)pem->pe_import!=RVA(dir.VirtualAddress))
 656                         WARN(win32,"wrong import directory??\n");
 657                  */
 658                 pem->pe_import = (PIMAGE_IMPORT_DESCRIPTOR) RVA(dir.VirtualAddress);
 659         }
 660
 661         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE];
 662         if(dir.Size)
 663         {
 664                 if(pem->pe_resource && (int)pem->pe_resource!=RVA(dir.VirtualAddress))
 665                         WARN(win32,"wrong resource directory??\n");
 666                 pem->pe_resource = (PIMAGE_RESOURCE_DIRECTORY) RVA(dir.VirtualAddress);
 667         }
 668
 669         if(nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].Size)
 670                 FIXME(win32,"Exception directory ignored\n");
 671
 672         if(nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].Size)
 673                 FIXME(win32,"Security directory ignored\n");
 674
 675
 676
 677         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 678         if(dir.Size)
 679         {
 680                 if(pem->pe_reloc && (int)pem->pe_reloc!= RVA(dir.VirtualAddress))
 681                         WARN(win32,"wrong relocation list??\n");
 682                 pem->pe_reloc = (void *) RVA(dir.VirtualAddress);
 683         }
 684
 685         if(nt_header->OptionalHeader.DataDirectory
 686                 [IMAGE_DIRECTORY_ENTRY_COPYRIGHT].Size)
 687                 FIXME(win32,"Copyright string ignored\n");
 688
 689         if(nt_header->OptionalHeader.DataDirectory
 690                 [IMAGE_DIRECTORY_ENTRY_GLOBALPTR].Size)
 691                 FIXME(win32,"Global Pointer (MIPS) ignored\n");
 692
 693         if(nt_header->OptionalHeader.DataDirectory
 694                 [IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG].Size)
 695                 FIXME(win32,"Load Configuration directory ignored\n");
 696
 697         if(nt_header->OptionalHeader.DataDirectory
 698                 [IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT].Size)
 699                 TRACE(win32,"Bound Import directory ignored\n");
 700
 701         if(nt_header->OptionalHeader.DataDirectory
 702                 [IMAGE_DIRECTORY_ENTRY_IAT].Size)
 703                 TRACE(win32,"Import Address Table directory ignored\n");
 704         if(nt_header->OptionalHeader.DataDirectory[13].Size)
 705                 FIXME(win32,"Unknown directory 13 ignored\n");
 706         if(nt_header->OptionalHeader.DataDirectory[14].Size)
 707                 FIXME(win32,"Unknown directory 14 ignored\n");
 708         if(nt_header->OptionalHeader.DataDirectory[15].Size)
 709                 FIXME(win32,"Unknown directory 15 ignored\n");
 710
 711         if(pem->pe_reloc)       do_relocations(wm);
 712         if(pem->pe_export) {
 713                 dump_exports(wm->module);
 714
 715                 wm->modname = HEAP_strdupA(process->heap,0,(char*)RVA(pem->pe_export->Name));
 716         } else {
 717                 /* try to find out the name from the OFSTRUCT */
 718                 char *s;
 719                 modname = s = ofs->szPathName;
 720                 while ((s=strchr(modname,'\\')))
 721                         modname = s+1;
 722                 wm->modname = HEAP_strdupA(process->heap,0,modname);
 723         }
 724         if(pem->pe_import)      {
 725                 if (fixup_imports(process,wm)) {
 726                         WINE_MODREF     **xwm;
 727
 728                         /* remove entry from modref chain */
 729                         xwm = &(process->modref_list);
 730                         while (*xwm) {
 731                                 if (*xwm==wm) {
 732                                         *xwm = wm->next;
 733                                         break;
 734                                 }
 735                                 xwm = &((*xwm)->next);
 736                         }
 737                         /* FIXME: there are several more dangling references
 738                          * left. Including dlls loaded by this dll before the
 739                          * failed one. Unrolling is rather difficult with the
 740                          * current structure and we can leave it them lying
 741                          * around with no problems, so we don't care
 742                          */
 743                         return 0;
 744                 }
 745         }
 746
 747         /* Now that we got everything at the right address,
 748          * we can unmap the previous module */
 749         UnmapViewOfFile( (LPVOID)hModule );
 750         return 1;
 751 }
 752
 753 /******************************************************************************
 754  * The PE Library Loader frontend.
 755  * FIXME: handle the flags.
 756  *        internal module handling should be made better here (and in builtin.c)
 757  */
 758 HMODULE32 PE_LoadLibraryEx32A (LPCSTR name, PDB32 *process,
 759                                HFILE32 hFile, DWORD flags)
 760 {
 761         OFSTRUCT        ofs;
 762         HMODULE32       hModule;
 763         NE_MODULE       *pModule;
 764         WINE_MODREF     *wm;
 765
 766         if ((hModule = MODULE_FindModule32( process, name ))) {
 767                 for (wm= process->modref_list;wm;wm=wm->next)
 768                         if (wm->module == hModule)
 769                                 return hModule;
 770                 /* Since MODULE_FindModule32 uses the modref chain too, the
 771                  * module MUST have been found above. If not, something has gone
 772                  * terribly wrong.
 773                  */
 774                 assert(0);
 775         }
 776         /* try to load builtin, enabled modules first */
 777         if ((hModule = BUILTIN32_LoadModule( name, FALSE, process )))
 778             return hModule;
 779
 780         /* try to load the specified dll/exe */
 781         if (HFILE_ERROR32==(hFile=OpenFile32(name,&ofs,OF_READ))) {
 782                 /* Now try the built-in even if disabled */
 783                 if ((hModule = BUILTIN32_LoadModule( name, TRUE, process ))) {
 784                     WARN( module, "Could not load external DLL '%s', using built-in module.\n", name );
 785                     return hModule;
 786                 }
 787                 return 0;
 788         }
 789         /* will go away ... */
 790         if ((hModule = MODULE_CreateDummyModule( &ofs )) < 32) {
 791                 _lclose32(hFile);
 792                 return hModule;
 793         }
 794         pModule         = (NE_MODULE *)GlobalLock16( hModule );
 795         pModule->flags  = NE_FFLAGS_WIN32;
 796         /* .. */
 797
 798         wm=(WINE_MODREF*)HeapAlloc(process->heap,HEAP_ZERO_MEMORY,sizeof(*wm));
 799         wm->type = MODULE32_PE;
 800         /* NOTE: fixup_imports takes care of the correct order */
 801         wm->next = process->modref_list;
 802         process->modref_list = wm;
 803
 804         wm->module = pModule->module32 = PE_LoadImage( hFile );
 805
 806         CloseHandle( hFile );
 807         if (wm->module < 32)
 808         {
 809             process->modref_list = wm->next;
 810             FreeLibrary16( hModule);
 811             HeapFree(process->heap,0,wm);
 812             ERR(win32,"can't load %s\n",ofs.szPathName);
 813             return 0;
 814         }
 815
 816         /* (possible) recursion */
 817         if (!PE_MapImage(process,wm,&ofs,flags)) {
 818             /* ERROR cleanup ... */
 819             WINE_MODREF **xwm;
 820
 821             ERR(win32,"couldn't load %s\n",ofs.szPathName);
 822             /* unlink from process modref chain */
 823             for (    xwm=&(process->modref_list);
 824                      *xwm && (*xwm!=wm);
 825                      xwm=&((*xwm)->next)
 826             ) /* EMPTY */;
 827             if (*xwm)
 828                 *xwm=(*xwm)->next;
 829
 830             return 0;
 831         }
 832         pModule->module32 = wm->module;
 833         if (wm->binfmt.pe.pe_export)
 834                 SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
 835         return wm->module;
 836 }
 837
 838 /*****************************************************************************
 839  * Load the PE main .EXE. All other loading is done by PE_LoadLibraryEx32A
 840  * FIXME: this function should use PE_LoadLibraryEx32A, but currently can't
 841  * due to the PROCESS_Create stuff.
 842  */
 843 HINSTANCE16 PE_CreateProcess( LPCSTR name, LPCSTR cmd_line,
 844                               LPCSTR env, LPSTARTUPINFO32A startup,
 845                               LPPROCESS_INFORMATION info )
 846 {
 847     HMODULE16 hModule16;
 848     HMODULE32 hModule32;
 849     HINSTANCE16 hInstance;
 850     NE_MODULE *pModule;
 851     HFILE32 hFile;
 852     OFSTRUCT ofs;
 853     PDB32 *process;
 854     TDB *pTask;
 855     WINE_MODREF *wm;
 856
 857     if ((hFile = OpenFile32( name, &ofs, OF_READ )) == HFILE_ERROR32)
 858         return 2;  /* File not found */
 859
 860     if ((hModule16 = MODULE_CreateDummyModule( &ofs )) < 32) return hModule16;
 861     pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 862     pModule->flags = NE_FFLAGS_WIN32;
 863
 864     pModule->module32 = hModule32 = PE_LoadImage( hFile );
 865     if (hModule32 < 32) return 21;
 866
 867     if (PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 868         return 11;
 869
 870     hInstance = NE_CreateInstance( pModule, NULL, FALSE );
 871     process = PROCESS_Create( pModule, cmd_line, env,
 872                               hInstance, 0, startup, info );
 873     pTask = (TDB *)GlobalLock16( process->task );
 874
 875     wm=(WINE_MODREF*)HeapAlloc(process->heap,HEAP_ZERO_MEMORY,sizeof(*wm));
 876     wm->type = MODULE32_PE;
 877     /* NOTE: fixup_imports takes care of the correct order */
 878     wm->next = process->modref_list;
 879     wm->module = hModule32;
 880     process->modref_list = wm;
 881     if (!PE_MapImage( process, wm, &ofs, 0 ))
 882     {
 883         /* FIXME: should destroy the task created and free referenced stuff */
 884         return 0;
 885     }
 886     pModule->module32 = wm->module;
 887
 888     /* FIXME: Yuck. Is there no other good place to do that? */
 889     PE_InitTls( pTask->thdb );
 890
 891     return hInstance;
 892 }
 893
 894 /*********************************************************************
 895  * PE_UnloadImage [internal]
 896  */
 897 int PE_UnloadImage( HMODULE32 hModule )
 898 {
 899         FIXME(win32,"stub.\n");
 900         /* free resources, image, unmap */
 901         return 1;
 902 }
 903
 904 /* Called if the library is loaded or freed.
 905  * NOTE: if a thread attaches a DLL, the current thread will only do
 906  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 907  * (SDK)
 908  */
 909 void PE_InitDLL(WINE_MODREF *wm, DWORD type, LPVOID lpReserved)
 910 {
 911     if (wm->type!=MODULE32_PE)
 912         return;
 913     if (wm->binfmt.pe.flags & PE_MODREF_NO_DLL_CALLS)
 914         return;
 915     if (type==DLL_PROCESS_ATTACH)
 916     {
 917         if (wm->binfmt.pe.flags & PE_MODREF_PROCESS_ATTACHED)
 918             return;
 919
 920         wm->binfmt.pe.flags |= PE_MODREF_PROCESS_ATTACHED;
 921     }
 922
 923     /*  DLL_ATTACH_PROCESS:
 924      *          lpreserved is NULL for dynamic loads, not-NULL for static loads
 925      *  DLL_DETACH_PROCESS:
 926      *          lpreserved is NULL if called by FreeLibrary, not-NULL otherwise
 927      *  the SDK doesn't mention anything for DLL_THREAD_*
 928      */
 929
 930     /* Is this a library? And has it got an entrypoint? */
 931     if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 932         (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
 933     ) {
 934         DLLENTRYPROC32 entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
 935         TRACE(relay, "CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 936                        entry, wm->module, type, lpReserved );
 937
 938         entry( wm->module, type, lpReserved );
 939     }
 940 }
 941
 942 void PE_InitTls(THDB *thdb)
 943 {
 944         WINE_MODREF             *wm;
 945         PE_MODREF               *pem;
 946         IMAGE_NT_HEADERS        *peh;
 947         DWORD                   size,datasize;
 948         LPVOID                  mem;
 949         PIMAGE_TLS_DIRECTORY    pdir;
 950         PDB32                   *pdb = thdb->process;
 951         int delta;
 952
 953         for (wm = pdb->modref_list;wm;wm=wm->next) {
 954                 if (wm->type!=MODULE32_PE)
 955                         continue;
 956                 pem = &(wm->binfmt.pe);
 957                 peh = PE_HEADER(wm->module);
 958                 delta = wm->module - peh->OptionalHeader.ImageBase;
 959                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 960                         continue;
 961                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 962                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 963
 964
 965                 if (!(pem->flags & PE_MODREF_TLS_ALLOCED)) {
 966                         pem->tlsindex = THREAD_TlsAlloc(thdb);
 967                         *(LPDWORD)AdjustPtr(pdir->AddressOfIndex,delta)
 968                           =pem->tlsindex;
 969                 }
 970                 pem->flags |= PE_MODREF_TLS_ALLOCED;
 971                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 972                 size    = datasize + pdir->SizeOfZeroFill;
 973                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 974                 memcpy(mem,
 975                        AdjustPtr(pdir->StartAddressOfRawData,delta),
 976                        datasize);
 977
 978                 /* don't use TlsSetValue, we are in the wrong thread */
 979                 if (pdir->AddressOfCallBacks) {
 980                      PIMAGE_TLS_CALLBACK *cbs =
 981                        (PIMAGE_TLS_CALLBACK *)
 982                        AdjustPtr(pdir->AddressOfCallBacks, delta);
 983
 984                      if (*cbs) {
 985                        FIXME(win32, "TLS Callbacks aren't going to be called\n");
 986                      }
 987                 }
 988                 thdb->tls_array[pem->tlsindex] = mem;
 989         }
 990 }
 991
 992 /****************************************************************************
 993  *              DisableThreadLibraryCalls (KERNEL32.74)
 994  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
 995  */
 996 BOOL32 WINAPI DisableThreadLibraryCalls(HMODULE32 hModule)
 997 {
 998         WINE_MODREF     *wm;
 999
1000         for (wm=PROCESS_Current()->modref_list;wm;wm=wm->next)
1001                 if ((wm->module == hModule) && (wm->type==MODULE32_PE))
1002                         wm->binfmt.pe.flags|=PE_MODREF_NO_DLL_CALLS;
1003         return TRUE;
1004 }