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                                 FIXME(win32, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 438                                 break;
 439                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 440                                 FIXME(win32, "Is this a MIPS machine ???\n");
 441                                 break;
 442                         default:
 443                                 FIXME(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         pe_seg = PE_SECTIONS(hModule);
 603         for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++, pe_seg++)
 604         {
 605                 /* memcpy only non-BSS segments */
 606                 /* FIXME: this should be done by mmap(..MAP_PRIVATE|MAP_FIXED..)
 607                  * but it is not possible for (at least) Linux needs
 608                  * a page-aligned offset.
 609                  */
 610                 if(!(pe_seg->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA))
 611                     memcpy((char*)RVA(pe_seg->VirtualAddress),
 612                         (char*)(hModule + pe_seg->PointerToRawData),
 613                         pe_seg->SizeOfRawData
 614                     );
 615
 616                 result = RVA (pe_seg->VirtualAddress);
 617 #if 1
 618                 /* not needed, memory is zero */
 619                 if(strcmp(pe_seg->Name, ".bss") == 0)
 620                     memset((void *)result, 0,
 621                            pe_seg->Misc.VirtualSize ?
 622                            pe_seg->Misc.VirtualSize :
 623                            pe_seg->SizeOfRawData);
 624 #endif
 625
 626                 if(strcmp(pe_seg->Name, ".idata") == 0)
 627                         pem->pe_import = (PIMAGE_IMPORT_DESCRIPTOR) result;
 628
 629                 if(strcmp(pe_seg->Name, ".edata") == 0)
 630                         pem->pe_export = (PIMAGE_EXPORT_DIRECTORY) result;
 631
 632                 if(strcmp(pe_seg->Name, ".rsrc") == 0)
 633                         pem->pe_resource = (PIMAGE_RESOURCE_DIRECTORY) result;
 634
 635                 if(strcmp(pe_seg->Name, ".reloc") == 0)
 636                         pem->pe_reloc = (PIMAGE_BASE_RELOCATION) result;
 637         }
 638
 639         /* There is word that the actual loader does not care about the
 640            section names, and only goes for the DataDirectory */
 641         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT];
 642         if(dir.Size)
 643         {
 644                 if(pem->pe_export && (int)pem->pe_export!=RVA(dir.VirtualAddress))
 645                         WARN(win32,"wrong export directory??\n");
 646                 /* always trust the directory */
 647                 pem->pe_export = (PIMAGE_EXPORT_DIRECTORY) RVA(dir.VirtualAddress);
 648         }
 649
 650         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
 651         if(dir.Size)
 652         {
 653                 /*
 654                 if(pem->pe_import && (int)pem->pe_import!=RVA(dir.VirtualAddress))
 655                         WARN(win32,"wrong import directory??\n");
 656                  */
 657                 pem->pe_import = (PIMAGE_IMPORT_DESCRIPTOR) RVA(dir.VirtualAddress);
 658         }
 659
 660         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE];
 661         if(dir.Size)
 662         {
 663                 if(pem->pe_resource && (int)pem->pe_resource!=RVA(dir.VirtualAddress))
 664                         WARN(win32,"wrong resource directory??\n");
 665                 pem->pe_resource = (PIMAGE_RESOURCE_DIRECTORY) RVA(dir.VirtualAddress);
 666         }
 667
 668         if(nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].Size)
 669                 FIXME(win32,"Exception directory ignored\n");
 670
 671         if(nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].Size)
 672                 FIXME(win32,"Security directory ignored\n");
 673
 674
 675
 676         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 677         if(dir.Size)
 678         {
 679                 if(pem->pe_reloc && (int)pem->pe_reloc!= RVA(dir.VirtualAddress))
 680                         WARN(win32,"wrong relocation list??\n");
 681                 pem->pe_reloc = (void *) RVA(dir.VirtualAddress);
 682         }
 683
 684         if(nt_header->OptionalHeader.DataDirectory
 685                 [IMAGE_DIRECTORY_ENTRY_COPYRIGHT].Size)
 686                 FIXME(win32,"Copyright string ignored\n");
 687
 688         if(nt_header->OptionalHeader.DataDirectory
 689                 [IMAGE_DIRECTORY_ENTRY_GLOBALPTR].Size)
 690                 FIXME(win32,"Global Pointer (MIPS) ignored\n");
 691
 692         if(nt_header->OptionalHeader.DataDirectory
 693                 [IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG].Size)
 694                 FIXME(win32,"Load Configuration directory ignored\n");
 695
 696         if(nt_header->OptionalHeader.DataDirectory
 697                 [IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT].Size)
 698                 TRACE(win32,"Bound Import directory ignored\n");
 699
 700         if(nt_header->OptionalHeader.DataDirectory
 701                 [IMAGE_DIRECTORY_ENTRY_IAT].Size)
 702                 TRACE(win32,"Import Address Table directory ignored\n");
 703         if(nt_header->OptionalHeader.DataDirectory[13].Size)
 704                 FIXME(win32,"Unknown directory 13 ignored\n");
 705         if(nt_header->OptionalHeader.DataDirectory[14].Size)
 706                 FIXME(win32,"Unknown directory 14 ignored\n");
 707         if(nt_header->OptionalHeader.DataDirectory[15].Size)
 708                 FIXME(win32,"Unknown directory 15 ignored\n");
 709
 710         if(pem->pe_reloc)       do_relocations(wm);
 711         if(pem->pe_export) {
 712                 dump_exports(wm->module);
 713
 714                 wm->modname = HEAP_strdupA(process->heap,0,(char*)RVA(pem->pe_export->Name));
 715         } else {
 716                 /* try to find out the name from the OFSTRUCT */
 717                 char *s;
 718                 modname = s = ofs->szPathName;
 719                 while ((s=strchr(modname,'\\')))
 720                         modname = s+1;
 721                 wm->modname = HEAP_strdupA(process->heap,0,modname);
 722         }
 723         if(pem->pe_import)      {
 724                 if (fixup_imports(process,wm)) {
 725                         WINE_MODREF     **xwm;
 726
 727                         /* remove entry from modref chain */
 728                         xwm = &(process->modref_list);
 729                         while (*xwm) {
 730                                 if (*xwm==wm) {
 731                                         *xwm = wm->next;
 732                                         break;
 733                                 }
 734                                 xwm = &((*xwm)->next);
 735                         }
 736                         /* FIXME: there are several more dangling references
 737                          * left. Including dlls loaded by this dll before the
 738                          * failed one. Unrolling is rather difficult with the
 739                          * current structure and we can leave it them lying
 740                          * around with no problems, so we don't care
 741                          */
 742                         return 0;
 743                 }
 744         }
 745
 746         /* Now that we got everything at the right address,
 747          * we can unmap the previous module */
 748         UnmapViewOfFile( (LPVOID)hModule );
 749         return 1;
 750 }
 751
 752 /******************************************************************************
 753  * The PE Library Loader frontend.
 754  * FIXME: handle the flags.
 755  *        internal module handling should be made better here (and in builtin.c)
 756  */
 757 HMODULE32 PE_LoadLibraryEx32A (LPCSTR name, PDB32 *process,
 758                                HFILE32 hFile, DWORD flags)
 759 {
 760         OFSTRUCT        ofs;
 761         HMODULE32       hModule;
 762         NE_MODULE       *pModule;
 763         WINE_MODREF     *wm;
 764
 765         if ((hModule = MODULE_FindModule32( process, name ))) {
 766                 for (wm= process->modref_list;wm;wm=wm->next)
 767                         if (wm->module == hModule)
 768                                 return hModule;
 769                 /* Since MODULE_FindModule32 uses the modref chain too, the
 770                  * module MUST have been found above. If not, something has gone
 771                  * terribly wrong.
 772                  */
 773                 assert(0);
 774         }
 775         /* try to load builtin, enabled modules first */
 776         if ((hModule = BUILTIN32_LoadModule( name, FALSE, process )))
 777             return hModule;
 778
 779         /* try to load the specified dll/exe */
 780         if (HFILE_ERROR32==(hFile=OpenFile32(name,&ofs,OF_READ))) {
 781                 /* Now try the built-in even if disabled */
 782                 if ((hModule = BUILTIN32_LoadModule( name, TRUE, process ))) {
 783                     WARN( module, "Could not load external DLL '%s', using built-in module.\n", name );
 784                     return hModule;
 785                 }
 786                 return 0;
 787         }
 788         /* will go away ... */
 789         if ((hModule = MODULE_CreateDummyModule( &ofs )) < 32) {
 790                 _lclose32(hFile);
 791                 return hModule;
 792         }
 793         pModule         = (NE_MODULE *)GlobalLock16( hModule );
 794         pModule->flags  = NE_FFLAGS_WIN32;
 795         /* .. */
 796
 797         wm=(WINE_MODREF*)HeapAlloc(process->heap,HEAP_ZERO_MEMORY,sizeof(*wm));
 798         wm->type = MODULE32_PE;
 799         /* NOTE: fixup_imports takes care of the correct order */
 800         wm->next = process->modref_list;
 801         process->modref_list = wm;
 802
 803         wm->module = pModule->module32 = PE_LoadImage( hFile );
 804
 805         CloseHandle( hFile );
 806         if (wm->module < 32)
 807         {
 808             process->modref_list = wm->next;
 809             FreeLibrary16( hModule);
 810             HeapFree(process->heap,0,wm);
 811             ERR(win32,"can't load %s\n",ofs.szPathName);
 812             return 0;
 813         }
 814
 815         /* (possible) recursion */
 816         if (!PE_MapImage(process,wm,&ofs,flags)) {
 817             /* ERROR cleanup ... */
 818             WINE_MODREF **xwm;
 819
 820             ERR(win32,"couldn't load %s\n",ofs.szPathName);
 821             /* unlink from process modref chain */
 822             for (    xwm=&(process->modref_list);
 823                      *xwm && (*xwm!=wm);
 824                      xwm=&((*xwm)->next)
 825             ) /* EMPTY */;
 826             if (*xwm)
 827                 *xwm=(*xwm)->next;
 828
 829             return 0;
 830         }
 831         pModule->module32 = wm->module;
 832         if (wm->binfmt.pe.pe_export)
 833                 SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
 834         return wm->module;
 835 }
 836
 837 /*****************************************************************************
 838  * Load the PE main .EXE. All other loading is done by PE_LoadLibraryEx32A
 839  * FIXME: this function should use PE_LoadLibraryEx32A, but currently can't
 840  * due to the PROCESS_Create stuff.
 841  */
 842 HINSTANCE16 PE_CreateProcess( LPCSTR name, LPCSTR cmd_line,
 843                               LPCSTR env, LPSTARTUPINFO32A startup,
 844                               LPPROCESS_INFORMATION info )
 845 {
 846     HMODULE16 hModule16;
 847     HMODULE32 hModule32;
 848     HINSTANCE16 hInstance;
 849     NE_MODULE *pModule;
 850     HFILE32 hFile;
 851     OFSTRUCT ofs;
 852     PDB32 *process;
 853     TDB *pTask;
 854     WINE_MODREF *wm;
 855
 856     if ((hFile = OpenFile32( name, &ofs, OF_READ )) == HFILE_ERROR32)
 857         return 2;  /* File not found */
 858
 859     if ((hModule16 = MODULE_CreateDummyModule( &ofs )) < 32) return hModule16;
 860     pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 861     pModule->flags = NE_FFLAGS_WIN32;
 862
 863     pModule->module32 = hModule32 = PE_LoadImage( hFile );
 864     if (hModule32 < 32) return 21;
 865
 866     if (PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 867         return 11;
 868
 869     hInstance = NE_CreateInstance( pModule, NULL, FALSE );
 870     process = PROCESS_Create( pModule, cmd_line, env,
 871                               hInstance, 0, startup, info );
 872     pTask = (TDB *)GlobalLock16( process->task );
 873
 874     wm=(WINE_MODREF*)HeapAlloc(process->heap,HEAP_ZERO_MEMORY,sizeof(*wm));
 875     wm->type = MODULE32_PE;
 876     /* NOTE: fixup_imports takes care of the correct order */
 877     wm->next = process->modref_list;
 878     wm->module = hModule32;
 879     process->modref_list = wm;
 880     if (!PE_MapImage( process, wm, &ofs, 0 ))
 881     {
 882         /* FIXME: should destroy the task created and free referenced stuff */
 883         return 0;
 884     }
 885     pModule->module32 = wm->module;
 886
 887     /* FIXME: Yuck. Is there no other good place to do that? */
 888     PE_InitTls( pTask->thdb );
 889
 890     return hInstance;
 891 }
 892
 893 /*********************************************************************
 894  * PE_UnloadImage [internal]
 895  */
 896 int PE_UnloadImage( HMODULE32 hModule )
 897 {
 898         FIXME(win32,"stub.\n");
 899         /* free resources, image, unmap */
 900         return 1;
 901 }
 902
 903 /* Called if the library is loaded or freed.
 904  * NOTE: if a thread attaches a DLL, the current thread will only do
 905  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 906  * (SDK)
 907  */
 908 void PE_InitDLL(WINE_MODREF *wm, DWORD type, LPVOID lpReserved)
 909 {
 910     if (wm->type!=MODULE32_PE)
 911         return;
 912     if (wm->binfmt.pe.flags & PE_MODREF_NO_DLL_CALLS)
 913         return;
 914     if (type==DLL_PROCESS_ATTACH)
 915     {
 916         if (wm->binfmt.pe.flags & PE_MODREF_PROCESS_ATTACHED)
 917             return;
 918
 919         wm->binfmt.pe.flags |= PE_MODREF_PROCESS_ATTACHED;
 920     }
 921
 922     /*  DLL_ATTACH_PROCESS:
 923      *          lpreserved is NULL for dynamic loads, not-NULL for static loads
 924      *  DLL_DETACH_PROCESS:
 925      *          lpreserved is NULL if called by FreeLibrary, not-NULL otherwise
 926      *  the SDK doesn't mention anything for DLL_THREAD_*
 927      */
 928
 929     /* Is this a library? And has it got an entrypoint? */
 930     if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 931         (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
 932     ) {
 933         DLLENTRYPROC32 entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
 934         TRACE(relay, "CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 935                        entry, wm->module, type, lpReserved );
 936
 937         entry( wm->module, type, lpReserved );
 938     }
 939 }
 940
 941 /************************************************************************
 942  *      PE_InitTls                      (internal)
 943  *
 944  * If included, initialises the thread local storages of modules.
 945  * Pointers in those structs are not RVAs but real pointers which have been
 946  * relocated by do_relocations() already.
 947  */
 948 void PE_InitTls(THDB *thdb)
 949 {
 950         WINE_MODREF             *wm;
 951         PE_MODREF               *pem;
 952         IMAGE_NT_HEADERS        *peh;
 953         DWORD                   size,datasize;
 954         LPVOID                  mem;
 955         PIMAGE_TLS_DIRECTORY    pdir;
 956         PDB32                   *pdb = thdb->process;
 957         int delta;
 958
 959         for (wm = pdb->modref_list;wm;wm=wm->next) {
 960                 if (wm->type!=MODULE32_PE)
 961                         continue;
 962                 pem = &(wm->binfmt.pe);
 963                 peh = PE_HEADER(wm->module);
 964                 delta = wm->module - peh->OptionalHeader.ImageBase;
 965                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 966                         continue;
 967                 FIXME(win32,"%s has TLS directory.\n",wm->longname);
 968                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 969                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 970
 971
 972                 if (!(pem->flags & PE_MODREF_TLS_ALLOCED)) {
 973                         pem->tlsindex = THREAD_TlsAlloc(thdb);
 974                         *pdir->AddressOfIndex=pem->tlsindex;
 975                 }
 976                 pem->flags |= PE_MODREF_TLS_ALLOCED;
 977                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 978                 size    = datasize + pdir->SizeOfZeroFill;
 979                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 980                 memcpy(mem,(LPVOID)pdir->StartAddressOfRawData,datasize);
 981                 if (pdir->AddressOfCallBacks) {
 982                      PIMAGE_TLS_CALLBACK *cbs =
 983                        (PIMAGE_TLS_CALLBACK *)pdir->AddressOfCallBacks;
 984
 985                      if (*cbs)
 986                        FIXME(win32, "TLS Callbacks aren't going to be called\n");
 987                 }
 988                 /* Don't use TlsSetValue, we are in the wrong thread */
 989                 thdb->tls_array[pem->tlsindex] = mem;
 990         }
 991 }
 992
 993 /****************************************************************************
 994  *              DisableThreadLibraryCalls (KERNEL32.74)
 995  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
 996  */
 997 BOOL32 WINAPI DisableThreadLibraryCalls(HMODULE32 hModule)
 998 {
 999         WINE_MODREF     *wm;
1000
1001         for (wm=PROCESS_Current()->modref_list;wm;wm=wm->next)
1002                 if ((wm->module == hModule) && (wm->type==MODULE32_PE))
1003                         wm->binfmt.pe.flags|=PE_MODREF_NO_DLL_CALLS;
1004         return TRUE;
1005 }