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 "debug.h"
  61
  62 static void PE_InitDLL(WINE_MODREF *wm, DWORD type, LPVOID lpReserved);
  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 {
 126         u_short                         * ordinal;
 127         u_long                          * function;
 128         u_char                          ** name, *ename;
 129         int                             i;
 130         PE_MODREF                       *pem = &(wm->binfmt.pe);
 131         IMAGE_EXPORT_DIRECTORY          *exports = pem->pe_export;
 132         unsigned int                    load_addr = wm->module;
 133         u_long                          rva_start, rva_end, addr;
 134         char                            * forward;
 135
 136         if (HIWORD(funcName))
 137                 TRACE(win32,"(%s)\n",funcName);
 138         else
 139                 TRACE(win32,"(%d)\n",(int)funcName);
 140         if (!exports) {
 141                 /* Not a fatal problem, some apps do
 142                  * GetProcAddress(0,"RegisterPenApp") which triggers this
 143                  * case.
 144                  */
 145                 WARN(win32,"Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,pem);
 146                 return NULL;
 147         }
 148         ordinal = (u_short*)  RVA(exports->AddressOfNameOrdinals);
 149         function= (u_long*)   RVA(exports->AddressOfFunctions);
 150         name    = (u_char **) RVA(exports->AddressOfNames);
 151         forward = NULL;
 152         rva_start = PE_HEADER(wm->module)->OptionalHeader
 153                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 154         rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
 155                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 156
 157         if (HIWORD(funcName)) {
 158                 for(i=0; i<exports->NumberOfNames; i++) {
 159                         ename=(char*)RVA(*name);
 160                         if(!strcmp(ename,funcName))
 161                         {
 162                             addr = function[*ordinal];
 163                             if (!addr) return NULL;
 164                             if ((addr < rva_start) || (addr >= rva_end))
 165                                 return (FARPROC32)RVA(addr);
 166                             forward = (char *)RVA(addr);
 167                             break;
 168                         }
 169                         ordinal++;
 170                         name++;
 171                 }
 172         } else {
 173                 if (LOWORD(funcName)-exports->Base > exports->NumberOfFunctions) {
 174                         TRACE(win32,"   ordinal %d out of range!\n",
 175                                       LOWORD(funcName));
 176                         return NULL;
 177                 }
 178                 addr = function[(int)funcName-exports->Base];
 179                 if (!addr) return NULL;
 180                 if ((addr < rva_start) || (addr >= rva_end))
 181                         return (FARPROC32)RVA(addr);
 182                 forward = (char *)RVA(addr);
 183         }
 184         if (forward)
 185         {
 186                 HMODULE32 hMod;
 187                 char module[256];
 188                 char *end = strchr(forward, '.');
 189
 190                 if (!end) return NULL;
 191                 assert(end-forward<256);
 192                 strncpy(module, forward, (end - forward));
 193                 module[end-forward] = 0;
 194                 hMod = MODULE_FindModule32(process,module);
 195                 assert(hMod);
 196                 return MODULE_GetProcAddress32( process, hMod, end + 1);
 197         }
 198         return NULL;
 199 }
 200
 201 DWORD fixup_imports (PDB32 *process,WINE_MODREF *wm)
 202 {
 203     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 204     WINE_MODREF                 *xwm;
 205     PE_MODREF                   *pem;
 206     int fixup_failed            = 0;
 207     unsigned int load_addr      = wm->module;
 208     int                         i;
 209     char                        *modname;
 210
 211     assert(wm->type==MODULE32_PE);
 212     pem = &(wm->binfmt.pe);
 213     if (pem->pe_export)
 214         modname = (char*) RVA(pem->pe_export->Name);
 215     else
 216         modname = "<unknown>";
 217
 218     /* OK, now dump the import list */
 219     TRACE(win32, "Dumping imports list\n");
 220
 221     /* first, count the number of imported non-internal modules */
 222     pe_imp = pem->pe_import;
 223     if (!pe_imp)
 224         ERR(win32, "no import directory????\n");
 225
 226     /* FIXME: should terminate on 0 Characteristics */
 227     for (i = 0; pe_imp->Name; pe_imp++)
 228         i++;
 229
 230     /* load the imported modules. They are automatically
 231      * added to the modref list of the process.
 232      */
 233
 234     /* FIXME: should terminate on 0 Characteristics */
 235     for (i = 0, pe_imp = pem->pe_import; pe_imp->Name; pe_imp++) {
 236         HMODULE32       res;
 237         WINE_MODREF     **ywm;
 238         char            *name = (char *) RVA(pe_imp->Name);
 239
 240         /* don't use MODULE_Load, Win32 creates new task differently */
 241         res = PE_LoadLibraryEx32A( name, process, 0, 0 );
 242         if (res <= (HMODULE32) 32) {
 243             char *p,buffer[2000];
 244
 245             /* GetModuleFileName would use the wrong process, so don't use it */
 246             strcpy(buffer,wm->shortname);
 247             if (!(p = strrchr (buffer, '\\')))
 248                 p = buffer;
 249             strcpy (p + 1, name);
 250             res = PE_LoadLibraryEx32A( buffer, process, 0, 0 );
 251         }
 252         if (res <= (HMODULE32) 32) {
 253             ERR (module, "Module %s not found\n", name);
 254             return res;
 255         }
 256         xwm = wm->next;
 257         while (xwm) {
 258                 if (xwm->module == res)
 259                         break;
 260                 xwm = xwm->next;
 261         }
 262         if (xwm) {
 263                 /* It has been loaded *BEFORE* us, so we have to initialize
 264                  * it before us. We cannot just link in the xwm before wm,
 265                  * since xwm might reference more dlls which would be in the
 266                  * wrong order after that.
 267                  * Instead we link in wm right AFTER xwm, which should keep
 268                  * the correct order. (I am not 100% sure about that.)
 269                  */
 270                 /* unlink wm from chain */
 271                 ywm = &(process->modref_list);
 272                 while (*ywm) {
 273                         if ((*ywm)==wm)
 274                                 break;
 275                         ywm = &((*ywm)->next);
 276                 }
 277                 *ywm            = wm->next;
 278
 279                 /* link wm directly AFTER xwm */
 280                 wm->next        = xwm->next;
 281                 xwm->next       = wm;
 282
 283         }
 284         i++;
 285     }
 286     pe_imp = pem->pe_import;
 287     while (pe_imp->Name) {
 288         char                    *Module;
 289         IMAGE_IMPORT_BY_NAME    *pe_name;
 290         LPIMAGE_THUNK_DATA      import_list,thunk_list;
 291         HMODULE32 hImpModule;
 292
 293         Module = (char *) RVA(pe_imp->Name);
 294         hImpModule = MODULE_FindModule32(process,Module);
 295         assert(hImpModule); /* we have imported it, so it MUST be there */
 296         TRACE(win32, "%s\n", Module);
 297
 298         /* FIXME: forwarder entries ... */
 299
 300         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 301             TRACE(win32, "Microsoft style imports used\n");
 302             import_list =(LPIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 303             thunk_list = (LPIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 304
 305             while (import_list->u1.Ordinal) {
 306                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 307                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 308
 309                     TRACE(win32, "--- Ordinal %s,%d\n", Module, ordinal);
 310                     thunk_list->u1.Function=(LPDWORD)MODULE_GetProcAddress32(
 311                         process, hImpModule, (LPCSTR)ordinal
 312                     );
 313                     if (!thunk_list->u1.Function) {
 314                         WARN(win32,"No implementation for %s.%d, setting to NULL\n",
 315                                 Module, ordinal);
 316                         /* fixup_failed=1; */
 317                     }
 318                 } else {                /* import by name */
 319                     pe_name = (LPIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 320                     TRACE(win32, "--- %s %s.%d\n", pe_name->Name, Module, pe_name->Hint);
 321                     thunk_list->u1.Function=(LPDWORD)MODULE_GetProcAddress32(
 322                         process, hImpModule, pe_name->Name
 323                     );
 324                     if (!thunk_list->u1.Function) {
 325                         WARN(win32,"No implementation for %s.%d(%s), setting to NULL\n",
 326                                 Module,pe_name->Hint,pe_name->Name);
 327                         /* fixup_failed=1; */
 328                     }
 329                 }
 330                 import_list++;
 331                 thunk_list++;
 332             }
 333         } else {        /* Borland style */
 334             TRACE(win32, "Borland style imports used\n");
 335             thunk_list = (LPIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 336             while (thunk_list->u1.Ordinal) {
 337                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 338                     /* not sure about this branch, but it seems to work */
 339                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 340
 341                     TRACE(win32,"--- Ordinal %s.%d\n",Module,ordinal);
 342                     thunk_list->u1.Function=(LPDWORD)MODULE_GetProcAddress32(
 343                         process, hImpModule, (LPCSTR) ordinal
 344                     );
 345                     if (!thunk_list->u1.Function) {
 346                         WARN(win32, "No implementation for %s.%d, setting to NULL\n",
 347                                 Module,ordinal);
 348                         /* fixup_failed=1; */
 349                     }
 350                 } else {
 351                     pe_name=(LPIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 352                     TRACE(win32,"--- %s %s.%d\n",
 353                                   pe_name->Name,Module,pe_name->Hint);
 354                     thunk_list->u1.Function=(LPDWORD)MODULE_GetProcAddress32(
 355                         process, hImpModule, pe_name->Name
 356                     );
 357                     if (!thunk_list->u1.Function) {
 358                         WARN(win32, "No implementation for %s.%d, setting to NULL\n",
 359                                 Module, pe_name->Hint);
 360                         /* fixup_failed=1; */
 361                     }
 362                 }
 363                 thunk_list++;
 364             }
 365         }
 366         pe_imp++;
 367     }
 368     if (fixup_failed) return 22;
 369     return 0;
 370 }
 371
 372 static int calc_vma_size( HMODULE32 hModule )
 373 {
 374     int i,vma_size = 0;
 375     IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
 376
 377     TRACE(win32, "Dump of segment table\n");
 378     TRACE(win32, "   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 379     for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
 380     {
 381         TRACE(win32, "%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 382                       pe_seg->Name,
 383                       pe_seg->Misc.VirtualSize,
 384                       pe_seg->VirtualAddress,
 385                       pe_seg->SizeOfRawData,
 386                       pe_seg->PointerToRawData,
 387                       pe_seg->PointerToRelocations,
 388                       pe_seg->PointerToLinenumbers,
 389                       pe_seg->NumberOfRelocations,
 390                       pe_seg->NumberOfLinenumbers,
 391                       pe_seg->Characteristics);
 392         vma_size = MAX(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
 393         pe_seg++;
 394     }
 395     return vma_size;
 396 }
 397
 398 static void do_relocations(WINE_MODREF *wm)
 399 {
 400     PE_MODREF   *pem = &(wm->binfmt.pe);
 401     int delta = wm->module - PE_HEADER(wm->module)->OptionalHeader.ImageBase;
 402     unsigned int load_addr= wm->module;
 403
 404         IMAGE_BASE_RELOCATION           *r = pem->pe_reloc;
 405         int                             hdelta = (delta >> 16) & 0xFFFF;
 406         int                             ldelta = delta & 0xFFFF;
 407
 408         /* int reloc_size = */
 409
 410         if(delta == 0)
 411                 /* Nothing to do */
 412                 return;
 413         while(r->VirtualAddress)
 414         {
 415                 char *page = (char*) RVA(r->VirtualAddress);
 416                 int count = (r->SizeOfBlock - 8)/2;
 417                 int i;
 418                 TRACE(fixup, "%x relocations for page %lx\n",
 419                         count, r->VirtualAddress);
 420                 /* patching in reverse order */
 421                 for(i=0;i<count;i++)
 422                 {
 423                         int offset = r->TypeOffset[i] & 0xFFF;
 424                         int type = r->TypeOffset[i] >> 12;
 425                         TRACE(fixup,"patching %x type %x\n", offset, type);
 426                         switch(type)
 427                         {
 428                         case IMAGE_REL_BASED_ABSOLUTE: break;
 429                         case IMAGE_REL_BASED_HIGH:
 430                                 *(short*)(page+offset) += hdelta;
 431                                 break;
 432                         case IMAGE_REL_BASED_LOW:
 433                                 *(short*)(page+offset) += ldelta;
 434                                 break;
 435                         case IMAGE_REL_BASED_HIGHLOW:
 436 #if 1
 437                                 *(int*)(page+offset) += delta;
 438 #else
 439                                 { int h=*(unsigned short*)(page+offset);
 440                                   int l=r->TypeOffset[++i];
 441                                   *(unsigned int*)(page + offset) = (h<<16) + l + delta;
 442                                 }
 443 #endif
 444                                 break;
 445                         case IMAGE_REL_BASED_HIGHADJ:
 446                                 WARN(win32, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 447                                 break;
 448                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 449                                 WARN(win32, "Is this a MIPS machine ???\n");
 450                                 break;
 451                         default:
 452                                 WARN(win32, "Unknown fixup type\n");
 453                                 break;
 454                         }
 455                 }
 456                 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
 457         }
 458 }
 459
 460
 461
 462
 463
 464 /**********************************************************************
 465  *                      PE_LoadImage
 466  * Load one PE format DLL/EXE into memory
 467  *
 468  * Unluckily we can't just mmap the sections where we want them, for
 469  * (at least) Linux does only support offsets which are page-aligned.
 470  *
 471  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 472  * want to access them. (HMODULE32 point to the start of it)
 473  */
 474 static HMODULE32 PE_LoadImage( HFILE32 hFile )
 475 {
 476     HMODULE32 hModule;
 477     HANDLE32 mapping;
 478
 479     /* map the PE file somewhere */
 480     mapping = CreateFileMapping32A( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
 481                                     0, 0, NULL );
 482     if (!mapping)
 483     {
 484         WARN( win32, "CreateFileMapping error %ld\n",
 485                  GetLastError() );
 486         return 0;
 487     }
 488     hModule = (HMODULE32)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 489     CloseHandle( mapping );
 490     if (!hModule)
 491     {
 492         WARN( win32, "PE_LoadImage: MapViewOfFile error %ld\n",
 493                  GetLastError() );
 494         return 0;
 495     }
 496
 497     if (PE_HEADER(hModule)->Signature != IMAGE_NT_SIGNATURE)
 498     {
 499         WARN(win32,"image doesn't have PE signature, but 0x%08lx\n",
 500                 PE_HEADER(hModule)->Signature );
 501         goto error;
 502     }
 503
 504     if (PE_HEADER(hModule)->FileHeader.Machine != IMAGE_FILE_MACHINE_I386)
 505     {
 506         MSG("Trying to load PE image for unsupported architecture (");
 507         switch (PE_HEADER(hModule)->FileHeader.Machine)
 508         {
 509         case IMAGE_FILE_MACHINE_UNKNOWN: MSG("Unknown\n"); break;
 510         case IMAGE_FILE_MACHINE_I860:    MSG("I860\n"); break;
 511         case IMAGE_FILE_MACHINE_R3000:   MSG("R3000\n"); break;
 512         case IMAGE_FILE_MACHINE_R4000:   MSG("R4000\n"); break;
 513         case IMAGE_FILE_MACHINE_R10000:  MSG("R10000\n"); break;
 514         case IMAGE_FILE_MACHINE_ALPHA:   MSG("Alpha\n"); break;
 515         case IMAGE_FILE_MACHINE_POWERPC: MSG("PowerPC\n"); break;
 516         default: MSG("Unknown-%04x\n",
 517                          PE_HEADER(hModule)->FileHeader.Machine); break;
 518         }
 519         goto error;
 520     }
 521     return hModule;
 522
 523 error:
 524     UnmapViewOfFile( (LPVOID)hModule );
 525     return 0;
 526 }
 527
 528 /**********************************************************************
 529  * This maps a loaded PE dll into the address space of the specified process.
 530  */
 531 static BOOL32 PE_MapImage( PDB32 *process,WINE_MODREF *wm, OFSTRUCT *ofs, DWORD flags )
 532 {
 533         PE_MODREF               *pem;
 534         int                     i, result;
 535         DWORD                   load_addr;
 536         IMAGE_DATA_DIRECTORY    dir;
 537         char                    *modname;
 538         int                     vma_size;
 539         HMODULE32               hModule = wm->module;
 540
 541         IMAGE_SECTION_HEADER *pe_seg;
 542         IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hModule;
 543         IMAGE_NT_HEADERS *nt_header = PE_HEADER(hModule);
 544
 545         pem     = &(wm->binfmt.pe);
 546
 547         result = GetLongPathName32A(ofs->szPathName,NULL,0);
 548         wm->longname = (char*)HeapAlloc(process->heap,0,result+1);
 549         GetLongPathName32A(ofs->szPathName,wm->longname,result+1);
 550
 551         wm->shortname = HEAP_strdupA(process->heap,0,ofs->szPathName);
 552
 553         if (!(nt_header->FileHeader.Characteristics & IMAGE_FILE_DLL))
 554         {
 555                 if (process->exe_modref)
 556                         FIXME(win32,"overwriting old exe_modref... arrgh\n");
 557                 process->exe_modref = wm;
 558         }
 559
 560         load_addr = nt_header->OptionalHeader.ImageBase;
 561         vma_size = calc_vma_size( hModule );
 562         TRACE(win32, "Load addr is %lx\n",load_addr);
 563         load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
 564                                          MEM_RESERVE | MEM_COMMIT,
 565                                          PAGE_EXECUTE_READWRITE );
 566         if (load_addr == 0) {
 567                 load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
 568                                                  MEM_RESERVE | MEM_COMMIT,
 569                                                  PAGE_EXECUTE_READWRITE );
 570         }
 571         /* NOTE: this changes a value in the process modref chain, which can
 572          * be accessed independently from this function
 573          */
 574         wm->module = (HMODULE32)load_addr;
 575
 576         TRACE(win32, "Load addr is really %lx, range %x\n",
 577                       load_addr, vma_size);
 578
 579         TRACE(segment, "Loading %s at %lx, range %x\n",
 580               ofs->szPathName, load_addr, vma_size );
 581
 582         /* Store the NT header at the load addr
 583          * (FIXME: should really use mmap)
 584          */
 585         *(IMAGE_DOS_HEADER *)load_addr = *dos_header;
 586         *(IMAGE_NT_HEADERS *)(load_addr + dos_header->e_lfanew) = *nt_header;
 587
 588         pe_seg = PE_SECTIONS(hModule);
 589         for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++, pe_seg++)
 590         {
 591                 /* memcpy only non-BSS segments */
 592                 /* FIXME: this should be done by mmap(..MAP_PRIVATE|MAP_FIXED..)
 593                  * but it is not possible for (at least) Linux needs
 594                  * a page-aligned offset.
 595                  */
 596                 if(!(pe_seg->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA))
 597                     memcpy((char*)RVA(pe_seg->VirtualAddress),
 598                         (char*)(hModule + pe_seg->PointerToRawData),
 599                         pe_seg->SizeOfRawData
 600                     );
 601
 602                 result = RVA (pe_seg->VirtualAddress);
 603 #if 1
 604                 /* not needed, memory is zero */
 605                 if(strcmp(pe_seg->Name, ".bss") == 0)
 606                     memset((void *)result, 0,
 607                            pe_seg->Misc.VirtualSize ?
 608                            pe_seg->Misc.VirtualSize :
 609                            pe_seg->SizeOfRawData);
 610 #endif
 611
 612                 if(strcmp(pe_seg->Name, ".idata") == 0)
 613                         pem->pe_import = (LPIMAGE_IMPORT_DESCRIPTOR) result;
 614
 615                 if(strcmp(pe_seg->Name, ".edata") == 0)
 616                         pem->pe_export = (LPIMAGE_EXPORT_DIRECTORY) result;
 617
 618                 if(strcmp(pe_seg->Name, ".rsrc") == 0)
 619                         pem->pe_resource = (LPIMAGE_RESOURCE_DIRECTORY) result;
 620
 621                 if(strcmp(pe_seg->Name, ".reloc") == 0)
 622                         pem->pe_reloc = (LPIMAGE_BASE_RELOCATION) result;
 623         }
 624
 625         /* There is word that the actual loader does not care about the
 626            section names, and only goes for the DataDirectory */
 627         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT];
 628         if(dir.Size)
 629         {
 630                 if(pem->pe_export && (int)pem->pe_export!=RVA(dir.VirtualAddress))
 631                         WARN(win32,"wrong export directory??\n");
 632                 /* always trust the directory */
 633                 pem->pe_export = (LPIMAGE_EXPORT_DIRECTORY) RVA(dir.VirtualAddress);
 634         }
 635
 636         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
 637         if(dir.Size)
 638         {
 639                 /*
 640                 if(pem->pe_import && (int)pem->pe_import!=RVA(dir.VirtualAddress))
 641                         WARN(win32,"wrong import directory??\n");
 642                  */
 643                 pem->pe_import = (LPIMAGE_IMPORT_DESCRIPTOR) RVA(dir.VirtualAddress);
 644         }
 645
 646         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE];
 647         if(dir.Size)
 648         {
 649                 if(pem->pe_resource && (int)pem->pe_resource!=RVA(dir.VirtualAddress))
 650                         WARN(win32,"wrong resource directory??\n");
 651                 pem->pe_resource = (LPIMAGE_RESOURCE_DIRECTORY) RVA(dir.VirtualAddress);
 652         }
 653
 654         if(nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].Size)
 655                 FIXME(win32,"Exception directory ignored\n");
 656
 657         if(nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].Size)
 658                 FIXME(win32,"Security directory ignored\n");
 659
 660
 661
 662         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 663         if(dir.Size)
 664         {
 665                 if(pem->pe_reloc && (int)pem->pe_reloc!= RVA(dir.VirtualAddress))
 666                         WARN(win32,"wrong relocation list??\n");
 667                 pem->pe_reloc = (void *) RVA(dir.VirtualAddress);
 668         }
 669
 670         if(nt_header->OptionalHeader.DataDirectory
 671                 [IMAGE_DIRECTORY_ENTRY_COPYRIGHT].Size)
 672                 FIXME(win32,"Copyright string ignored\n");
 673
 674         if(nt_header->OptionalHeader.DataDirectory
 675                 [IMAGE_DIRECTORY_ENTRY_GLOBALPTR].Size)
 676                 FIXME(win32,"Global Pointer (MIPS) ignored\n");
 677
 678         if(nt_header->OptionalHeader.DataDirectory
 679                 [IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG].Size)
 680                 FIXME(win32,"Load Configuration directory ignored\n");
 681
 682         if(nt_header->OptionalHeader.DataDirectory
 683                 [IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT].Size)
 684                 FIXME(win32,"Bound Import directory ignored\n");
 685
 686         if(nt_header->OptionalHeader.DataDirectory
 687                 [IMAGE_DIRECTORY_ENTRY_IAT].Size)
 688                 FIXME(win32,"Import Address Table directory ignored\n");
 689         if(nt_header->OptionalHeader.DataDirectory[13].Size)
 690                 FIXME(win32,"Unknown directory 13 ignored\n");
 691         if(nt_header->OptionalHeader.DataDirectory[14].Size)
 692                 FIXME(win32,"Unknown directory 14 ignored\n");
 693         if(nt_header->OptionalHeader.DataDirectory[15].Size)
 694                 FIXME(win32,"Unknown directory 15 ignored\n");
 695
 696         if(pem->pe_reloc)       do_relocations(wm);
 697         if(pem->pe_export) {
 698                 dump_exports(wm->module);
 699
 700                 wm->modname = HEAP_strdupA(process->heap,0,(char*)RVA(pem->pe_export->Name));
 701         } else {
 702                 /* try to find out the name from the OFSTRUCT */
 703                 char *s;
 704                 modname = s = ofs->szPathName;
 705                 while ((s=strchr(modname,'\\')))
 706                         modname = s+1;
 707                 wm->modname = HEAP_strdupA(process->heap,0,modname);
 708         }
 709         if(pem->pe_import)      {
 710                 if (fixup_imports(process,wm)) {
 711                         WINE_MODREF     **xwm;
 712
 713                         /* remove entry from modref chain */
 714                         xwm = &(process->modref_list);
 715                         while (*xwm) {
 716                                 if (*xwm==wm) {
 717                                         *xwm = wm->next;
 718                                         break;
 719                                 }
 720                                 xwm = &((*xwm)->next);
 721                         }
 722                         /* FIXME: there are several more dangling references
 723                          * left. Including dlls loaded by this dll before the
 724                          * failed one. Unrolling is rather difficult with the
 725                          * current structure and we can leave it them lying
 726                          * around with no problems, so we don't care
 727                          */
 728                         return 0;
 729                 }
 730         }
 731
 732         /* Now that we got everything at the right address,
 733          * we can unmap the previous module */
 734         UnmapViewOfFile( (LPVOID)hModule );
 735         return 1;
 736 }
 737
 738 /******************************************************************************
 739  * The PE Library Loader frontend.
 740  * FIXME: handle the flags.
 741  *        internal module handling should be made better here (and in builtin.c)
 742  */
 743 HMODULE32 PE_LoadLibraryEx32A (LPCSTR name, PDB32 *process,
 744                                HFILE32 hFile, DWORD flags)
 745 {
 746         OFSTRUCT        ofs;
 747         HMODULE32       hModule;
 748         NE_MODULE       *pModule;
 749         WINE_MODREF     *wm;
 750
 751         if ((hModule = MODULE_FindModule32( process, name ))) {
 752                 for (wm= process->modref_list;wm;wm=wm->next)
 753                         if (wm->module == hModule)
 754                                 return hModule;
 755                 /* Since MODULE_FindModule32 uses the modref chain too, the
 756                  * module MUST have been found above. If not, something has gone
 757                  * terribly wrong.
 758                  */
 759                 assert(0);
 760         }
 761         /* try to load builtin, enabled modules first */
 762         if ((hModule = BUILTIN32_LoadModule( name, FALSE, process )))
 763             return hModule;
 764
 765         /* try to load the specified dll/exe */
 766         if (HFILE_ERROR32==(hFile=OpenFile32(name,&ofs,OF_READ))) {
 767                 /* Now try the built-in even if disabled */
 768                 if ((hModule = BUILTIN32_LoadModule( name, TRUE, process ))) {
 769                     WARN( module, "Could not load external DLL '%s', using built-in module.\n", name );
 770                     return hModule;
 771                 }
 772                 return 1;
 773         }
 774         /* will go away ... */
 775         if ((hModule = MODULE_CreateDummyModule( &ofs )) < 32) {
 776                 _lclose32(hFile);
 777                 return hModule;
 778         }
 779         pModule         = (NE_MODULE *)GlobalLock16( hModule );
 780         pModule->flags  = NE_FFLAGS_WIN32;
 781         /* .. */
 782
 783         wm=(WINE_MODREF*)HeapAlloc(process->heap,HEAP_ZERO_MEMORY,sizeof(*wm));
 784         wm->type = MODULE32_PE;
 785         /* NOTE: fixup_imports takes care of the correct order */
 786         wm->next = process->modref_list;
 787         process->modref_list = wm;
 788
 789         wm->module = pModule->module32 = PE_LoadImage( hFile );
 790
 791         CloseHandle( hFile );
 792         if (wm->module < 32)
 793         {
 794             process->modref_list = wm->next;
 795             FreeLibrary16( hModule);
 796             HeapFree(process->heap,0,wm);
 797             ERR(win32,"can't load %s\n",ofs.szPathName);
 798             return 21; /* FIXME: probably 0 */
 799         }
 800
 801         /* (possible) recursion */
 802         if (!PE_MapImage(process,wm,&ofs,flags)) {
 803             /* ERROR cleanup ... */
 804             WINE_MODREF **xwm;
 805
 806             ERR(win32,"couldn't load %s\n",ofs.szPathName);
 807             /* unlink from process modref chain */
 808             for (    xwm=&(process->modref_list);
 809                      *xwm && (*xwm!=wm);
 810                      xwm=&((*xwm)->next)
 811             ) /* EMPTY */;
 812             if (*xwm)
 813                 *xwm=(*xwm)->next;
 814
 815             return 0;
 816         }
 817         pModule->module32 = wm->module;
 818         return wm->module;
 819 }
 820
 821 /*****************************************************************************
 822  * Load the PE main .EXE. All other loading is done by PE_LoadLibraryEx32A
 823  * FIXME: this function should use PE_LoadLibraryEx32A, but currently can't
 824  * due to the PROCESS_Create stuff.
 825  */
 826 HINSTANCE16 PE_LoadModule( LPCSTR name, LPCSTR cmd_line,
 827                            LPCSTR env, UINT16 show_cmd )
 828 {
 829     HMODULE16 hModule16;
 830     HMODULE32 hModule32;
 831     HINSTANCE16 hInstance;
 832     NE_MODULE *pModule;
 833     HFILE32 hFile;
 834     OFSTRUCT ofs;
 835     THDB *thdb = THREAD_Current();
 836     PDB32 *process;
 837     WINE_MODREF *wm;
 838
 839     if ((hFile = OpenFile32( name, &ofs, OF_READ )) == HFILE_ERROR32)
 840         return 2;  /* File not found */
 841
 842     if ((hModule16 = MODULE_CreateDummyModule( &ofs )) < 32) return hModule16;
 843     pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 844     pModule->flags = NE_FFLAGS_WIN32;
 845
 846     pModule->module32 = hModule32 = PE_LoadImage( hFile );
 847     if (hModule32 < 32) return 21;
 848
 849     hInstance = NE_CreateInstance( pModule, NULL, (cmd_line == NULL) );
 850     if (cmd_line &&
 851         !(PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL))
 852     {
 853         PDB32 *pdb = PROCESS_Create( pModule, cmd_line, env,
 854                                      hInstance, 0, show_cmd );
 855         TDB *pTask = (TDB *)GlobalLock16( pdb->task );
 856         thdb = pTask->thdb;
 857     }
 858
 859     process = thdb->process;
 860
 861     wm=(WINE_MODREF*)HeapAlloc(process->heap,HEAP_ZERO_MEMORY,sizeof(*wm));
 862     wm->type = MODULE32_PE;
 863     /* NOTE: fixup_imports takes care of the correct order */
 864     wm->next = process->modref_list;
 865     wm->module = hModule32;
 866     process->modref_list = wm;
 867     if (!PE_MapImage( process, wm, &ofs, 0 ))
 868     {
 869         /* FIXME: should destroy the task created and free referenced stuff */
 870         return 0;
 871     }
 872     pModule->module32 = wm->module;
 873     /* FIXME: Yuck. Is there no other good place to do that? */
 874     PE_InitTls( thdb );
 875     return hInstance;
 876 }
 877
 878 /*********************************************************************
 879  * PE_UnloadImage [internal]
 880  */
 881 int PE_UnloadImage( HMODULE32 hModule )
 882 {
 883         FIXME(win32,"stub.\n");
 884         /* free resources, image, unmap */
 885         return 1;
 886 }
 887
 888 /* Called if the library is loaded or freed.
 889  * NOTE: if a thread attaches a DLL, the current thread will only do
 890  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 891  * (SDK)
 892  */
 893 static void PE_InitDLL(WINE_MODREF *wm, DWORD type,LPVOID lpReserved)
 894 {
 895     if (wm->type!=MODULE32_PE)
 896         return;
 897     if (type==DLL_PROCESS_ATTACH)
 898         wm->binfmt.pe.flags |= PE_MODREF_PROCESS_ATTACHED;
 899
 900     /*  DLL_ATTACH_PROCESS:
 901      *          lpreserved is NULL for dynamic loads, not-NULL for static loads
 902      *  DLL_DETACH_PROCESS:
 903      *          lpreserved is NULL if called by FreeLibrary, not-NULL otherwise
 904      *  the SDK doesn't mention anything for DLL_THREAD_*
 905      */
 906
 907     /* Is this a library? And has it got an entrypoint? */
 908     if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 909         (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
 910     ) {
 911         FARPROC32 entry = (FARPROC32)RVA_PTR( wm->module,
 912                                           OptionalHeader.AddressOfEntryPoint );
 913         TRACE(relay, "CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 914                        entry, wm->module, type, lpReserved );
 915         entry( wm->module, type, lpReserved );
 916     }
 917 }
 918
 919 /* Call the DLLentry function of all dlls used by that process.
 920  * (NOTE: this may recursively call this function (if a library calls
 921  * LoadLibrary) ... but it won't matter)
 922  */
 923 void PE_InitializeDLLs(PDB32 *process,DWORD type,LPVOID lpReserved) {
 924         WINE_MODREF     *wm;
 925
 926         for (wm = process->modref_list;wm;wm=wm->next) {
 927                 PE_MODREF       *pem = NULL;
 928                 if (wm->type!=MODULE32_PE)
 929                         continue;
 930                 pem = &(wm->binfmt.pe);
 931                 if (pem->flags & PE_MODREF_NO_DLL_CALLS)
 932                         continue;
 933                 if (type==DLL_PROCESS_ATTACH) {
 934                         if (pem->flags & PE_MODREF_PROCESS_ATTACHED)
 935                                 continue;
 936                 }
 937                 PE_InitDLL( wm, type, lpReserved );
 938         }
 939 }
 940
 941 void PE_InitTls(THDB *thdb)
 942 {
 943         WINE_MODREF             *wm;
 944         PE_MODREF               *pem;
 945         IMAGE_NT_HEADERS        *peh;
 946         DWORD                   size,datasize;
 947         LPVOID                  mem;
 948         LPIMAGE_TLS_DIRECTORY   pdir;
 949         PDB32                   *pdb = thdb->process;
 950         int delta;
 951
 952         for (wm = pdb->modref_list;wm;wm=wm->next) {
 953                 if (wm->type!=MODULE32_PE)
 954                         continue;
 955                 pem = &(wm->binfmt.pe);
 956                 peh = PE_HEADER(wm->module);
 957                 delta = wm->module - peh->OptionalHeader.ImageBase;
 958                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 959                         continue;
 960                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 961                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 962
 963
 964                 if (!(pem->flags & PE_MODREF_TLS_ALLOCED)) {
 965                         pem->tlsindex = THREAD_TlsAlloc(thdb);
 966                         *(LPDWORD)AdjustPtr(pdir->AddressOfIndex,delta)
 967                           =pem->tlsindex;
 968                 }
 969                 pem->flags |= PE_MODREF_TLS_ALLOCED;
 970                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 971                 size    = datasize + pdir->SizeOfZeroFill;
 972                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 973                 memcpy(mem,
 974                        AdjustPtr(pdir->StartAddressOfRawData,delta),
 975                        datasize);
 976
 977                 /* don't use TlsSetValue, we are in the wrong thread */
 978                 if (pdir->AddressOfCallBacks) {
 979                      LPIMAGE_TLS_CALLBACK *cbs =
 980                        (LPIMAGE_TLS_CALLBACK *)
 981                        AdjustPtr(pdir->AddressOfCallBacks, delta);
 982
 983                      if (*cbs) {
 984                        FIXME(win32, "TLS Callbacks aren't going to be called\n");
 985                      }
 986                 }
 987                 thdb->tls_array[pem->tlsindex] = mem;
 988         }
 989 }
 990
 991 /****************************************************************************
 992  *              DisableThreadLibraryCalls (KERNEL32.74)
 993  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
 994  */
 995 BOOL32 WINAPI DisableThreadLibraryCalls(HMODULE32 hModule)
 996 {
 997         WINE_MODREF     *wm;
 998
 999         for (wm=PROCESS_Current()->modref_list;wm;wm=wm->next)
1000                 if ((wm->module == hModule) && (wm->type==MODULE32_PE))
1001                         wm->binfmt.pe.flags|=PE_MODREF_NO_DLL_CALLS;
1002         return TRUE;
1003 }