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 static void PE_InitDLL(WINE_MODREF *wm, DWORD type, LPVOID lpReserved);
  64
  65 /* convert PE image VirtualAddress to Real Address */
  66 #define RVA(x) ((unsigned int)load_addr+(unsigned int)(x))
  67
  68 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  69
  70 void dump_exports( HMODULE32 hModule )
  71 {
  72   char          *Module;
  73   int           i, j;
  74   u_short       *ordinal;
  75   u_long        *function,*functions;
  76   u_char        **name;
  77   unsigned int load_addr = hModule;
  78
  79   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  80                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
  81   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
  82                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
  83   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
  84
  85   Module = (char*)RVA(pe_exports->Name);
  86   TRACE(win32,"*******EXPORT DATA*******\n");
  87   TRACE(win32,"Module name is %s, %ld functions, %ld names\n",
  88                Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
  89
  90   ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
  91   functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
  92   name=(u_char**) RVA(pe_exports->AddressOfNames);
  93
  94   TRACE(win32," Ord    RVA     Addr   Name\n" );
  95   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
  96   {
  97       if (!*function) continue;  /* No such function */
  98       if (TRACE_ON(win32)){
  99         dbg_decl_str(win32, 1024);
 100
 101         dsprintf(win32,"%4ld %08lx %08x",
 102                  i + pe_exports->Base, *function, RVA(*function) );
 103         /* Check if we have a name for it */
 104         for (j = 0; j < pe_exports->NumberOfNames; j++)
 105           if (ordinal[j] == i)
 106             dsprintf(win32, "  %s", (char*)RVA(name[j]) );
 107         if ((*function >= rva_start) && (*function <= rva_end))
 108           dsprintf(win32, " (forwarded -> %s)", (char *)RVA(*function));
 109         TRACE(win32,"%s\n", dbg_str(win32));
 110       }
 111   }
 112 }
 113
 114 /* Look up the specified function or ordinal in the exportlist:
 115  * If it is a string:
 116  *      - look up the name in the Name list.
 117  *      - look up the ordinal with that index.
 118  *      - use the ordinal as offset into the functionlist
 119  * If it is a ordinal:
 120  *      - use ordinal-pe_export->Base as offset into the functionlist
 121  */
 122 FARPROC32 PE_FindExportedFunction(
 123         PDB32 *process,         /* [in] process context */
 124         WINE_MODREF *wm,        /* [in] WINE modreference */
 125         LPCSTR funcName )       /* [in] function name */
 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_GetProcAddress32(wm->module,ename,*ordinal,(FARPROC32)RVA(addr));
 167                             forward = (char *)RVA(addr);
 168                             break;
 169                         }
 170                         ordinal++;
 171                         name++;
 172                 }
 173         } else  {
 174                 int i;
 175                 if (LOWORD(funcName)-exports->Base > exports->NumberOfFunctions) {
 176                         TRACE(win32,"   ordinal %d out of range!\n",
 177                                       LOWORD(funcName));
 178                         return NULL;
 179                 }
 180                 addr = function[(int)funcName-exports->Base];
 181                 if (!addr) return NULL;
 182                 ename = "";
 183                 if (name) {
 184                     for (i=0;i<exports->NumberOfNames;i++) {
 185                             ename = (char*)RVA(*name);
 186                             if (*ordinal == LOWORD(funcName)-exports->Base)
 187                                 break;
 188                             ordinal++;
 189                             name++;
 190                     }
 191                     if (i==exports->NumberOfNames)
 192                         ename = "";
 193                 }
 194                 if ((addr < rva_start) || (addr >= rva_end))
 195                         return SNOOP_GetProcAddress32(wm->module,ename,(DWORD)funcName-exports->Base,(FARPROC32)RVA(addr));
 196                 forward = (char *)RVA(addr);
 197         }
 198         if (forward)
 199         {
 200                 HMODULE32 hMod;
 201                 char module[256];
 202                 char *end = strchr(forward, '.');
 203
 204                 if (!end) return NULL;
 205                 assert(end-forward<256);
 206                 strncpy(module, forward, (end - forward));
 207                 module[end-forward] = 0;
 208                 hMod = MODULE_FindModule32(process,module);
 209                 assert(hMod);
 210                 return MODULE_GetProcAddress32( process, hMod, end + 1);
 211         }
 212         return NULL;
 213 }
 214
 215 DWORD fixup_imports (PDB32 *process,WINE_MODREF *wm)
 216 {
 217     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 218     WINE_MODREF                 *xwm;
 219     PE_MODREF                   *pem;
 220     int fixup_failed            = 0;
 221     unsigned int load_addr      = wm->module;
 222     int                         i;
 223     char                        *modname;
 224
 225     assert(wm->type==MODULE32_PE);
 226     pem = &(wm->binfmt.pe);
 227     if (pem->pe_export)
 228         modname = (char*) RVA(pem->pe_export->Name);
 229     else
 230         modname = "<unknown>";
 231
 232     /* OK, now dump the import list */
 233     TRACE(win32, "Dumping imports list\n");
 234
 235     /* first, count the number of imported non-internal modules */
 236     pe_imp = pem->pe_import;
 237     if (!pe_imp)
 238         ERR(win32, "no import directory????\n");
 239
 240     /* FIXME: should terminate on 0 Characteristics */
 241     for (i = 0; pe_imp->Name; pe_imp++)
 242         i++;
 243
 244     /* load the imported modules. They are automatically
 245      * added to the modref list of the process.
 246      */
 247
 248     /* FIXME: should terminate on 0 Characteristics */
 249     for (i = 0, pe_imp = pem->pe_import; pe_imp->Name; pe_imp++) {
 250         HMODULE32       res;
 251         WINE_MODREF     **ywm;
 252         char            *name = (char *) RVA(pe_imp->Name);
 253
 254         /* don't use MODULE_Load, Win32 creates new task differently */
 255         res = PE_LoadLibraryEx32A( name, process, 0, 0 );
 256         if (res <= (HMODULE32) 32) {
 257             char *p,buffer[2000];
 258
 259             /* GetModuleFileName would use the wrong process, so don't use it */
 260             strcpy(buffer,wm->shortname);
 261             if (!(p = strrchr (buffer, '\\')))
 262                 p = buffer;
 263             strcpy (p + 1, name);
 264             res = PE_LoadLibraryEx32A( buffer, process, 0, 0 );
 265         }
 266         if (res <= (HMODULE32) 32) {
 267             ERR (module, "Module %s not found\n", name);
 268             return res;
 269         }
 270         xwm = wm->next;
 271         while (xwm) {
 272                 if (xwm->module == res)
 273                         break;
 274                 xwm = xwm->next;
 275         }
 276         if (xwm) {
 277                 /* It has been loaded *BEFORE* us, so we have to initialize
 278                  * it before us. We cannot just link in the xwm before wm,
 279                  * since xwm might reference more dlls which would be in the
 280                  * wrong order after that.
 281                  * Instead we link in wm right AFTER xwm, which should keep
 282                  * the correct order. (I am not 100% sure about that.)
 283                  */
 284                 /* unlink wm from chain */
 285                 ywm = &(process->modref_list);
 286                 while (*ywm) {
 287                         if ((*ywm)==wm)
 288                                 break;
 289                         ywm = &((*ywm)->next);
 290                 }
 291                 *ywm            = wm->next;
 292
 293                 /* link wm directly AFTER xwm */
 294                 wm->next        = xwm->next;
 295                 xwm->next       = wm;
 296
 297         }
 298         i++;
 299     }
 300     pe_imp = pem->pe_import;
 301     while (pe_imp->Name) {
 302         char                    *Module;
 303         IMAGE_IMPORT_BY_NAME    *pe_name;
 304         LPIMAGE_THUNK_DATA      import_list,thunk_list;
 305         HMODULE32 hImpModule;
 306
 307         Module = (char *) RVA(pe_imp->Name);
 308         hImpModule = MODULE_FindModule32(process,Module);
 309         assert(hImpModule); /* we have imported it, so it MUST be there */
 310         TRACE(win32, "%s\n", Module);
 311
 312         /* FIXME: forwarder entries ... */
 313
 314         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 315             TRACE(win32, "Microsoft style imports used\n");
 316             import_list =(LPIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 317             thunk_list = (LPIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 318
 319             while (import_list->u1.Ordinal) {
 320                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 321                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 322
 323                     TRACE(win32, "--- Ordinal %s,%d\n", Module, ordinal);
 324                     thunk_list->u1.Function=(LPDWORD)MODULE_GetProcAddress32(
 325                         process, hImpModule, (LPCSTR)ordinal
 326                     );
 327                     if (!thunk_list->u1.Function) {
 328                         WARN(win32,"No implementation for %s.%d, setting to NULL\n",
 329                                 Module, ordinal);
 330                         /* fixup_failed=1; */
 331                     }
 332                 } else {                /* import by name */
 333                     pe_name = (LPIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 334                     TRACE(win32, "--- %s %s.%d\n", pe_name->Name, Module, pe_name->Hint);
 335                     thunk_list->u1.Function=(LPDWORD)MODULE_GetProcAddress32(
 336                         process, hImpModule, pe_name->Name
 337                     );
 338                     if (!thunk_list->u1.Function) {
 339                         WARN(win32,"No implementation for %s.%d(%s), setting to NULL\n",
 340                                 Module,pe_name->Hint,pe_name->Name);
 341                         /* fixup_failed=1; */
 342                     }
 343                 }
 344                 import_list++;
 345                 thunk_list++;
 346             }
 347         } else {        /* Borland style */
 348             TRACE(win32, "Borland style imports used\n");
 349             thunk_list = (LPIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 350             while (thunk_list->u1.Ordinal) {
 351                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 352                     /* not sure about this branch, but it seems to work */
 353                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 354
 355                     TRACE(win32,"--- Ordinal %s.%d\n",Module,ordinal);
 356                     thunk_list->u1.Function=(LPDWORD)MODULE_GetProcAddress32(
 357                         process, hImpModule, (LPCSTR) ordinal
 358                     );
 359                     if (!thunk_list->u1.Function) {
 360                         WARN(win32, "No implementation for %s.%d, setting to NULL\n",
 361                                 Module,ordinal);
 362                         /* fixup_failed=1; */
 363                     }
 364                 } else {
 365                     pe_name=(LPIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 366                     TRACE(win32,"--- %s %s.%d\n",
 367                                   pe_name->Name,Module,pe_name->Hint);
 368                     thunk_list->u1.Function=(LPDWORD)MODULE_GetProcAddress32(
 369                         process, hImpModule, pe_name->Name
 370                     );
 371                     if (!thunk_list->u1.Function) {
 372                         WARN(win32, "No implementation for %s.%d, setting to NULL\n",
 373                                 Module, pe_name->Hint);
 374                         /* fixup_failed=1; */
 375                     }
 376                 }
 377                 thunk_list++;
 378             }
 379         }
 380         pe_imp++;
 381     }
 382     if (fixup_failed) return 22;
 383     return 0;
 384 }
 385
 386 static int calc_vma_size( HMODULE32 hModule )
 387 {
 388     int i,vma_size = 0;
 389     IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
 390
 391     TRACE(win32, "Dump of segment table\n");
 392     TRACE(win32, "   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 393     for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
 394     {
 395         TRACE(win32, "%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 396                       pe_seg->Name,
 397                       pe_seg->Misc.VirtualSize,
 398                       pe_seg->VirtualAddress,
 399                       pe_seg->SizeOfRawData,
 400                       pe_seg->PointerToRawData,
 401                       pe_seg->PointerToRelocations,
 402                       pe_seg->PointerToLinenumbers,
 403                       pe_seg->NumberOfRelocations,
 404                       pe_seg->NumberOfLinenumbers,
 405                       pe_seg->Characteristics);
 406         vma_size = MAX(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
 407         pe_seg++;
 408     }
 409     return vma_size;
 410 }
 411
 412 static void do_relocations(WINE_MODREF *wm)
 413 {
 414     PE_MODREF   *pem = &(wm->binfmt.pe);
 415     int delta = wm->module - PE_HEADER(wm->module)->OptionalHeader.ImageBase;
 416     unsigned int load_addr= wm->module;
 417
 418         IMAGE_BASE_RELOCATION           *r = pem->pe_reloc;
 419         int                             hdelta = (delta >> 16) & 0xFFFF;
 420         int                             ldelta = delta & 0xFFFF;
 421
 422         /* int reloc_size = */
 423
 424         if(delta == 0)
 425                 /* Nothing to do */
 426                 return;
 427         while(r->VirtualAddress)
 428         {
 429                 char *page = (char*) RVA(r->VirtualAddress);
 430                 int count = (r->SizeOfBlock - 8)/2;
 431                 int i;
 432                 TRACE(fixup, "%x relocations for page %lx\n",
 433                         count, r->VirtualAddress);
 434                 /* patching in reverse order */
 435                 for(i=0;i<count;i++)
 436                 {
 437                         int offset = r->TypeOffset[i] & 0xFFF;
 438                         int type = r->TypeOffset[i] >> 12;
 439                         TRACE(fixup,"patching %x type %x\n", offset, type);
 440                         switch(type)
 441                         {
 442                         case IMAGE_REL_BASED_ABSOLUTE: break;
 443                         case IMAGE_REL_BASED_HIGH:
 444                                 *(short*)(page+offset) += hdelta;
 445                                 break;
 446                         case IMAGE_REL_BASED_LOW:
 447                                 *(short*)(page+offset) += ldelta;
 448                                 break;
 449                         case IMAGE_REL_BASED_HIGHLOW:
 450 #if 1
 451                                 *(int*)(page+offset) += delta;
 452 #else
 453                                 { int h=*(unsigned short*)(page+offset);
 454                                   int l=r->TypeOffset[++i];
 455                                   *(unsigned int*)(page + offset) = (h<<16) + l + delta;
 456                                 }
 457 #endif
 458                                 break;
 459                         case IMAGE_REL_BASED_HIGHADJ:
 460                                 WARN(win32, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 461                                 break;
 462                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 463                                 WARN(win32, "Is this a MIPS machine ???\n");
 464                                 break;
 465                         default:
 466                                 WARN(win32, "Unknown fixup type\n");
 467                                 break;
 468                         }
 469                 }
 470                 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
 471         }
 472 }
 473
 474
 475
 476
 477
 478 /**********************************************************************
 479  *                      PE_LoadImage
 480  * Load one PE format DLL/EXE into memory
 481  *
 482  * Unluckily we can't just mmap the sections where we want them, for
 483  * (at least) Linux does only support offsets which are page-aligned.
 484  *
 485  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 486  * want to access them. (HMODULE32 point to the start of it)
 487  */
 488 static HMODULE32 PE_LoadImage( HFILE32 hFile )
 489 {
 490     HMODULE32 hModule;
 491     HANDLE32 mapping;
 492
 493     /* map the PE file somewhere */
 494     mapping = CreateFileMapping32A( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
 495                                     0, 0, NULL );
 496     if (!mapping)
 497     {
 498         WARN( win32, "CreateFileMapping error %ld\n",
 499                  GetLastError() );
 500         return 0;
 501     }
 502     hModule = (HMODULE32)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 503     CloseHandle( mapping );
 504     if (!hModule)
 505     {
 506         WARN( win32, "PE_LoadImage: MapViewOfFile error %ld\n",
 507                  GetLastError() );
 508         return 0;
 509     }
 510
 511     if (PE_HEADER(hModule)->Signature != IMAGE_NT_SIGNATURE)
 512     {
 513         WARN(win32,"image doesn't have PE signature, but 0x%08lx\n",
 514                 PE_HEADER(hModule)->Signature );
 515         goto error;
 516     }
 517
 518     if (PE_HEADER(hModule)->FileHeader.Machine != IMAGE_FILE_MACHINE_I386)
 519     {
 520         MSG("Trying to load PE image for unsupported architecture (");
 521         switch (PE_HEADER(hModule)->FileHeader.Machine)
 522         {
 523         case IMAGE_FILE_MACHINE_UNKNOWN: MSG("Unknown\n"); break;
 524         case IMAGE_FILE_MACHINE_I860:    MSG("I860\n"); break;
 525         case IMAGE_FILE_MACHINE_R3000:   MSG("R3000\n"); break;
 526         case IMAGE_FILE_MACHINE_R4000:   MSG("R4000\n"); break;
 527         case IMAGE_FILE_MACHINE_R10000:  MSG("R10000\n"); break;
 528         case IMAGE_FILE_MACHINE_ALPHA:   MSG("Alpha\n"); break;
 529         case IMAGE_FILE_MACHINE_POWERPC: MSG("PowerPC\n"); break;
 530         default: MSG("Unknown-%04x\n",
 531                          PE_HEADER(hModule)->FileHeader.Machine); break;
 532         }
 533         goto error;
 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 = (LPIMAGE_IMPORT_DESCRIPTOR) result;
 629
 630                 if(strcmp(pe_seg->Name, ".edata") == 0)
 631                         pem->pe_export = (LPIMAGE_EXPORT_DIRECTORY) result;
 632
 633                 if(strcmp(pe_seg->Name, ".rsrc") == 0)
 634                         pem->pe_resource = (LPIMAGE_RESOURCE_DIRECTORY) result;
 635
 636                 if(strcmp(pe_seg->Name, ".reloc") == 0)
 637                         pem->pe_reloc = (LPIMAGE_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 = (LPIMAGE_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 = (LPIMAGE_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 = (LPIMAGE_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_LoadModule( LPCSTR name, LPCSTR cmd_line,
 844                            LPCSTR env, UINT16 show_cmd )
 845 {
 846     HMODULE16 hModule16;
 847     HMODULE32 hModule32;
 848     HINSTANCE16 hInstance;
 849     NE_MODULE *pModule;
 850     HFILE32 hFile;
 851     OFSTRUCT ofs;
 852     THDB *thdb = THREAD_Current();
 853     PDB32 *process;
 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     hInstance = NE_CreateInstance( pModule, NULL, (cmd_line == NULL) );
 867     if (cmd_line &&
 868         !(PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL))
 869     {
 870         PDB32 *pdb = PROCESS_Create( pModule, cmd_line, env,
 871                                      hInstance, 0, show_cmd );
 872         TDB *pTask = (TDB *)GlobalLock16( pdb->task );
 873         thdb = pTask->thdb;
 874     }
 875
 876     process = thdb->process;
 877
 878     wm=(WINE_MODREF*)HeapAlloc(process->heap,HEAP_ZERO_MEMORY,sizeof(*wm));
 879     wm->type = MODULE32_PE;
 880     /* NOTE: fixup_imports takes care of the correct order */
 881     wm->next = process->modref_list;
 882     wm->module = hModule32;
 883     process->modref_list = wm;
 884     if (!PE_MapImage( process, wm, &ofs, 0 ))
 885     {
 886         /* FIXME: should destroy the task created and free referenced stuff */
 887         return 0;
 888     }
 889     pModule->module32 = wm->module;
 890     /* FIXME: Yuck. Is there no other good place to do that? */
 891     PE_InitTls( thdb );
 892     return hInstance;
 893 }
 894
 895 /*********************************************************************
 896  * PE_UnloadImage [internal]
 897  */
 898 int PE_UnloadImage( HMODULE32 hModule )
 899 {
 900         FIXME(win32,"stub.\n");
 901         /* free resources, image, unmap */
 902         return 1;
 903 }
 904
 905 /* Called if the library is loaded or freed.
 906  * NOTE: if a thread attaches a DLL, the current thread will only do
 907  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 908  * (SDK)
 909  */
 910 static void PE_InitDLL(WINE_MODREF *wm, DWORD type,LPVOID lpReserved)
 911 {
 912     if (wm->type!=MODULE32_PE)
 913         return;
 914     if (type==DLL_PROCESS_ATTACH)
 915         wm->binfmt.pe.flags |= PE_MODREF_PROCESS_ATTACHED;
 916
 917     /*  DLL_ATTACH_PROCESS:
 918      *          lpreserved is NULL for dynamic loads, not-NULL for static loads
 919      *  DLL_DETACH_PROCESS:
 920      *          lpreserved is NULL if called by FreeLibrary, not-NULL otherwise
 921      *  the SDK doesn't mention anything for DLL_THREAD_*
 922      */
 923
 924     /* Is this a library? And has it got an entrypoint? */
 925     if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 926         (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
 927     ) {
 928         FARPROC32 entry = (FARPROC32)RVA_PTR( wm->module,
 929                                           OptionalHeader.AddressOfEntryPoint );
 930         TRACE(relay, "CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 931                        entry, wm->module, type, lpReserved );
 932         entry( wm->module, type, lpReserved );
 933     }
 934 }
 935
 936 /* Call the DLLentry function of all dlls used by that process.
 937  * (NOTE: this may recursively call this function (if a library calls
 938  * LoadLibrary) ... but it won't matter)
 939  */
 940 void PE_InitializeDLLs(PDB32 *process,DWORD type,LPVOID lpReserved) {
 941         WINE_MODREF     *wm;
 942
 943         for (wm = process->modref_list;wm;wm=wm->next) {
 944                 PE_MODREF       *pem = NULL;
 945                 if (wm->type!=MODULE32_PE)
 946                         continue;
 947                 pem = &(wm->binfmt.pe);
 948                 if (pem->flags & PE_MODREF_NO_DLL_CALLS)
 949                         continue;
 950                 if (type==DLL_PROCESS_ATTACH) {
 951                         if (pem->flags & PE_MODREF_PROCESS_ATTACHED)
 952                                 continue;
 953                 }
 954                 PE_InitDLL( wm, type, lpReserved );
 955         }
 956 }
 957
 958 void PE_InitTls(THDB *thdb)
 959 {
 960         WINE_MODREF             *wm;
 961         PE_MODREF               *pem;
 962         IMAGE_NT_HEADERS        *peh;
 963         DWORD                   size,datasize;
 964         LPVOID                  mem;
 965         LPIMAGE_TLS_DIRECTORY   pdir;
 966         PDB32                   *pdb = thdb->process;
 967         int delta;
 968
 969         for (wm = pdb->modref_list;wm;wm=wm->next) {
 970                 if (wm->type!=MODULE32_PE)
 971                         continue;
 972                 pem = &(wm->binfmt.pe);
 973                 peh = PE_HEADER(wm->module);
 974                 delta = wm->module - peh->OptionalHeader.ImageBase;
 975                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 976                         continue;
 977                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 978                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 979
 980
 981                 if (!(pem->flags & PE_MODREF_TLS_ALLOCED)) {
 982                         pem->tlsindex = THREAD_TlsAlloc(thdb);
 983                         *(LPDWORD)AdjustPtr(pdir->AddressOfIndex,delta)
 984                           =pem->tlsindex;
 985                 }
 986                 pem->flags |= PE_MODREF_TLS_ALLOCED;
 987                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 988                 size    = datasize + pdir->SizeOfZeroFill;
 989                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 990                 memcpy(mem,
 991                        AdjustPtr(pdir->StartAddressOfRawData,delta),
 992                        datasize);
 993
 994                 /* don't use TlsSetValue, we are in the wrong thread */
 995                 if (pdir->AddressOfCallBacks) {
 996                      LPIMAGE_TLS_CALLBACK *cbs =
 997                        (LPIMAGE_TLS_CALLBACK *)
 998                        AdjustPtr(pdir->AddressOfCallBacks, delta);
 999
1000                      if (*cbs) {
1001                        FIXME(win32, "TLS Callbacks aren't going to be called\n");
1002                      }
1003                 }
1004                 thdb->tls_array[pem->tlsindex] = mem;
1005         }
1006 }
1007
1008 /****************************************************************************
1009  *              DisableThreadLibraryCalls (KERNEL32.74)
1010  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
1011  */
1012 BOOL32 WINAPI DisableThreadLibraryCalls(HMODULE32 hModule)
1013 {
1014         WINE_MODREF     *wm;
1015
1016         for (wm=PROCESS_Current()->modref_list;wm;wm=wm->next)
1017                 if ((wm->module == hModule) && (wm->type==MODULE32_PE))
1018                         wm->binfmt.pe.flags|=PE_MODREF_NO_DLL_CALLS;
1019         return TRUE;
1020 }