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 cannot use Linux mmap() to mmap() the images directly. Linux aligns
  25  *   them at pagesize (4096), Win32 requires 512 byte alignment.
  26  * - All those function map things into a new addresspace. From the wrong
  27  *   process and the wrong thread. So calling other API functions will mess
  28  *   things up badly sometimes.
  29  */
  30
  31 /*#include <ctype.h>*/
  32 #include <errno.h>
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <unistd.h>
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <sys/mman.h>
  40 #include "windows.h"
  41 #include "winbase.h"
  42 #include "callback.h"
  43 #include "file.h"
  44 #include "neexe.h"
  45 #include "peexe.h"
  46 #include "process.h"
  47 #include "thread.h"
  48 #include "pe_image.h"
  49 #include "module.h"
  50 #include "global.h"
  51 #include "task.h"
  52 #include "ldt.h"
  53 #include "debug.h"
  54 #include "xmalloc.h"
  55
  56 static void PE_InitDLL(PE_MODREF* modref, DWORD type, LPVOID lpReserved);
  57
  58 /* convert PE image VirtualAddress to Real Address */
  59 #define RVA(x) ((unsigned int)load_addr+(unsigned int)(x))
  60
  61 void dump_exports( HMODULE32 hModule )
  62 {
  63   char          *Module;
  64   int           i, j;
  65   u_short       *ordinal;
  66   u_long        *function,*functions;
  67   u_char        **name;
  68   unsigned int load_addr = hModule;
  69
  70   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  71                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
  72   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
  73                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
  74   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
  75
  76   Module = (char*)RVA(pe_exports->Name);
  77   dprintf_info(win32,"\n*******EXPORT DATA*******\nModule name is %s, %ld functions, %ld names\n",
  78          Module,
  79          pe_exports->NumberOfFunctions,
  80          pe_exports->NumberOfNames);
  81
  82   ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
  83   functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
  84   name=(u_char**) RVA(pe_exports->AddressOfNames);
  85
  86   dprintf_info(win32," Ord    RVA     Addr   Name\n" );
  87   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
  88   {
  89       if (!*function) continue;  /* No such function */
  90       if (debugging_info(win32)){
  91         dbg_decl_str(win32, 1024);
  92
  93         dsprintf(win32,"%4ld %08lx %08x",
  94                  i + pe_exports->Base, *function, RVA(*function) );
  95         /* Check if we have a name for it */
  96         for (j = 0; j < pe_exports->NumberOfNames; j++)
  97           if (ordinal[j] == i)
  98             dsprintf(win32, "  %s", (char*)RVA(name[j]) );
  99         if ((*function >= rva_start) && (*function <= rva_end))
 100           dsprintf(win32, " (forwarded -> %s)", (char *)RVA(*function));
 101         dprintf_info(win32,"%s\n", dbg_str(win32));
 102       }
 103   }
 104 }
 105
 106 /* Look up the specified function or ordinal in the exportlist:
 107  * If it is a string:
 108  *      - look up the name in the Name list.
 109  *      - look up the ordinal with that index.
 110  *      - use the ordinal as offset into the functionlist
 111  * If it is a ordinal:
 112  *      - use ordinal-pe_export->Base as offset into the functionlist
 113  */
 114 FARPROC32 PE_FindExportedFunction( PDB32 *process, HMODULE32 hModule,
 115                                    LPCSTR funcName)
 116 {
 117         IMAGE_EXPORT_DIRECTORY          *exports;
 118         unsigned                        load_addr;
 119         u_short                         * ordinal;
 120         u_long                          * function;
 121         u_char                          ** name, *ename;
 122         int                             i;
 123         PE_MODREF                       *pem;
 124         u_long                          rva_start, rva_end, addr;
 125         char                            * forward;
 126
 127         pem = process->modref_list;
 128         while (pem && (pem->module != hModule))
 129                 pem=pem->next;
 130         if (!pem) {
 131                 fprintf(stderr,"No MODREF found for PE_MODULE %08x in process %p\n",hModule,process);
 132                 return NULL;
 133         }
 134         load_addr = hModule;
 135         exports   = pem->pe_export;
 136
 137         if (HIWORD(funcName))
 138                 dprintf_info(win32,"PE_FindExportedFunction(%s)\n",funcName);
 139         else
 140                 dprintf_info(win32,"PE_FindExportedFunction(%d)\n",(int)funcName);
 141         if (!exports) {
 142                 fprintf(stderr,"Module %08x/MODREF %p doesn't have a exports table.\n",hModule,pem);
 143                 return NULL;
 144         }
 145         ordinal = (u_short*)  RVA(exports->AddressOfNameOrdinals);
 146         function= (u_long*)   RVA(exports->AddressOfFunctions);
 147         name    = (u_char **) RVA(exports->AddressOfNames);
 148         forward = NULL;
 149         rva_start = PE_HEADER(hModule)->OptionalHeader
 150                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 151         rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
 152                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 153
 154         if (HIWORD(funcName)) {
 155                 for(i=0; i<exports->NumberOfNames; i++) {
 156                         ename=(char*)RVA(*name);
 157                         if(!strcmp(ename,funcName))
 158                         {
 159                             addr = function[*ordinal];
 160                             if (!addr) return NULL;
 161                             if ((addr < rva_start) || (addr >= rva_end))
 162                                 return (FARPROC32)RVA(addr);
 163                             forward = (char *)RVA(addr);
 164                             break;
 165                         }
 166                         ordinal++;
 167                         name++;
 168                 }
 169         } else {
 170                 if (LOWORD(funcName)-exports->Base > exports->NumberOfFunctions) {
 171                         dprintf_info(win32,"    ordinal %d out of range!\n",
 172                                       LOWORD(funcName));
 173                         return NULL;
 174                 }
 175                 addr = function[(int)funcName-exports->Base];
 176                 if (!addr) return NULL;
 177                 if ((addr < rva_start) || (addr >= rva_end))
 178                         return (FARPROC32)RVA(addr);
 179                 forward = (char *)RVA(addr);
 180         }
 181         if (forward)
 182         {
 183                 HMODULE32 hMod;
 184                 char module[256];
 185                 char *end = strchr(forward, '.');
 186                 if (!end) return NULL;
 187                 strncpy(module, forward, (end - forward));
 188                 module[end-forward] = 0;
 189                 hMod = MODULE_HANDLEtoHMODULE32( MODULE_FindModule(module) );
 190                 return PE_FindExportedFunction( process, hMod, end + 1);
 191         }
 192         return NULL;
 193 }
 194
 195 DWORD fixup_imports (PDB32 *process,PE_MODREF *pem,HMODULE32 hModule)
 196 {
 197     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 198     int fixup_failed            = 0;
 199     unsigned int load_addr      = pem->module;
 200     int                         i;
 201     char                        *modname;
 202
 203     if (pem->pe_export)
 204         modname = (char*) RVA(pem->pe_export->Name);
 205     else
 206         modname = "<unknown>";
 207
 208     /* OK, now dump the import list */
 209     dprintf_info(win32, "\nDumping imports list\n");
 210
 211     /* first, count the number of imported non-internal modules */
 212     pe_imp = pem->pe_import;
 213     if (!pe_imp)
 214         fprintf(stderr,"no import directory????\n");
 215
 216     /* FIXME: should terminate on 0 Characteristics */
 217     for (i = 0; pe_imp->Name; pe_imp++)
 218         i++;
 219
 220     /* load the imported modules. They are automatically
 221      * added to the modref list of the process.
 222      */
 223
 224     /* FIXME: should terminate on 0 Characteristics */
 225     for (i = 0, pe_imp = pem->pe_import; pe_imp->Name; pe_imp++) {
 226         HMODULE32       res;
 227         PE_MODREF       *xpem,**ypem;
 228
 229
 230         char *name = (char *) RVA(pe_imp->Name);
 231
 232         /* don't use MODULE_Load, Win32 creates new task differently */
 233         res = PE_LoadLibraryEx32A( name, process, 0, 0 );
 234         if (res <= (HMODULE32) 32) {
 235             char *p, buffer[1024];
 236
 237             /* Try with prepending the path of the current module */
 238             GetModuleFileName32A( hModule, buffer, sizeof (buffer));
 239             if (!(p = strrchr (buffer, '\\')))
 240                 p = buffer;
 241             strcpy (p + 1, name);
 242             res = PE_LoadLibraryEx32A( buffer, process, 0, 0 );
 243         }
 244         if (res <= (HMODULE32) 32) {
 245             fprintf (stderr, "Module %s not found\n", name);
 246             return res;
 247         }
 248         res = MODULE_HANDLEtoHMODULE32(res);
 249         xpem = pem->next;
 250         while (xpem) {
 251                 if (xpem->module == res)
 252                         break;
 253                 xpem = xpem->next;
 254         }
 255         if (xpem) {
 256                 /* It has been loaded *BEFORE* us, so we have to initialize
 257                  * it before us. We cannot just link in the xpem before pem,
 258                  * since xpem might reference more dlls which would be in the
 259                  * wrong order after that.
 260                  * Instead we link in pem right AFTER xpem, which should keep
 261                  * the correct order. (I am not 100% sure about that.)
 262                  */
 263                 /* unlink pem from chain */
 264                 ypem = &(process->modref_list);
 265                 while (*ypem) {
 266                         if ((*ypem)==pem)
 267                                 break;
 268                         ypem = &((*ypem)->next);
 269                 }
 270                 *ypem           = pem->next;
 271
 272                 /* link pem directly AFTER xpem */
 273                 pem->next       = xpem->next;
 274                 xpem->next      = pem;
 275
 276         }
 277         i++;
 278     }
 279     pe_imp = pem->pe_import;
 280     while (pe_imp->Name) {
 281         char                    *Module;
 282         IMAGE_IMPORT_BY_NAME    *pe_name;
 283         LPIMAGE_THUNK_DATA      import_list,thunk_list;
 284         HMODULE32 hImpModule;
 285
 286         Module = (char *) RVA(pe_imp->Name);
 287         hImpModule = MODULE_HANDLEtoHMODULE32( MODULE_FindModule(Module) );
 288         dprintf_info(win32, "%s\n", Module);
 289
 290         /* FIXME: forwarder entries ... */
 291
 292         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 293             dprintf_info(win32, "Microsoft style imports used\n");
 294             import_list =(LPIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 295             thunk_list = (LPIMAGE_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                     dprintf_info(win32, "--- Ordinal %s,%d\n", Module, ordinal);
 302                     thunk_list->u1.Function=(LPDWORD)PE_FindExportedFunction(
 303                         process, hImpModule, (LPCSTR)ordinal);
 304                     if (!thunk_list->u1.Function) {
 305                         fprintf(stderr,"No implementation for %s.%d, setting to NULL\n",
 306                                 Module, ordinal);
 307                         /* fixup_failed=1; */
 308                     }
 309                 } else {                /* import by name */
 310                     pe_name = (LPIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 311                     dprintf_info(win32, "--- %s %s.%d\n", pe_name->Name, Module, pe_name->Hint);
 312                     thunk_list->u1.Function=(LPDWORD)PE_FindExportedFunction(
 313                         process, hImpModule, pe_name->Name);
 314                     if (!thunk_list->u1.Function) {
 315                         fprintf(stderr,"No implementation for %s.%d(%s), setting to NULL\n",
 316                                 Module,pe_name->Hint,pe_name->Name);
 317                         /* fixup_failed=1; */
 318                     }
 319                 }
 320                 import_list++;
 321                 thunk_list++;
 322             }
 323         } else {        /* Borland style */
 324             dprintf_info(win32, "Borland style imports used\n");
 325             thunk_list = (LPIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 326             while (thunk_list->u1.Ordinal) {
 327                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 328                     /* not sure about this branch, but it seems to work */
 329                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 330
 331                     dprintf_info(win32,"--- Ordinal %s.%d\n",Module,ordinal);
 332                     thunk_list->u1.Function=(LPDWORD)PE_FindExportedFunction(
 333                         process, hImpModule, (LPCSTR) ordinal);
 334                     if (!thunk_list->u1.Function) {
 335                         fprintf(stderr, "No implementation for %s.%d, setting to NULL\n",
 336                                 Module,ordinal);
 337                         /* fixup_failed=1; */
 338                     }
 339                 } else {
 340                     pe_name=(LPIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 341                     dprintf_info(win32,"--- %s %s.%d\n",
 342                                   pe_name->Name,Module,pe_name->Hint);
 343                     thunk_list->u1.Function=(LPDWORD)PE_FindExportedFunction(
 344                         process, hImpModule, pe_name->Name );
 345                     if (!thunk_list->u1.Function) {
 346                         fprintf(stderr, "No implementation for %s.%d, setting to NULL\n",
 347                                 Module, pe_name->Hint);
 348                         /* fixup_failed=1; */
 349                     }
 350                 }
 351                 thunk_list++;
 352             }
 353         }
 354         pe_imp++;
 355     }
 356     if (fixup_failed) return 22;
 357     return 0;
 358 }
 359
 360 static int calc_vma_size( HMODULE32 hModule )
 361 {
 362     int i,vma_size = 0;
 363     IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
 364
 365     dprintf_info(win32, "Dump of segment table\n");
 366     dprintf_info(win32, "   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 367     for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
 368     {
 369         dprintf_info(win32, "%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 370                       pe_seg->Name,
 371                       pe_seg->Misc.VirtualSize,
 372                       pe_seg->VirtualAddress,
 373                       pe_seg->SizeOfRawData,
 374                       pe_seg->PointerToRawData,
 375                       pe_seg->PointerToRelocations,
 376                       pe_seg->PointerToLinenumbers,
 377                       pe_seg->NumberOfRelocations,
 378                       pe_seg->NumberOfLinenumbers,
 379                       pe_seg->Characteristics);
 380         vma_size = MAX(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
 381         pe_seg++;
 382     }
 383     return vma_size;
 384 }
 385
 386 static void do_relocations(PE_MODREF *pem)
 387 {
 388     int delta = pem->module - PE_HEADER(pem->module)->OptionalHeader.ImageBase;
 389     unsigned int load_addr= pem->module;
 390         IMAGE_BASE_RELOCATION           *r = pem->pe_reloc;
 391         int                             hdelta = (delta >> 16) & 0xFFFF;
 392         int                             ldelta = delta & 0xFFFF;
 393
 394         /* int reloc_size = */
 395
 396         if(delta == 0)
 397                 /* Nothing to do */
 398                 return;
 399         while(r->VirtualAddress)
 400         {
 401                 char *page = (char*) RVA(r->VirtualAddress);
 402                 int count = (r->SizeOfBlock - 8)/2;
 403                 int i;
 404                 dprintf_info(fixup, "%x relocations for page %lx\n",
 405                         count, r->VirtualAddress);
 406                 /* patching in reverse order */
 407                 for(i=0;i<count;i++)
 408                 {
 409                         int offset = r->TypeOffset[i] & 0xFFF;
 410                         int type = r->TypeOffset[i] >> 12;
 411                         dprintf_info(fixup,"patching %x type %x\n", offset, type);
 412                         switch(type)
 413                         {
 414                         case IMAGE_REL_BASED_ABSOLUTE: break;
 415                         case IMAGE_REL_BASED_HIGH:
 416                                 *(short*)(page+offset) += hdelta;
 417                                 break;
 418                         case IMAGE_REL_BASED_LOW:
 419                                 *(short*)(page+offset) += ldelta;
 420                                 break;
 421                         case IMAGE_REL_BASED_HIGHLOW:
 422 #if 1
 423                                 *(int*)(page+offset) += delta;
 424 #else
 425                                 { int h=*(unsigned short*)(page+offset);
 426                                   int l=r->TypeOffset[++i];
 427                                   *(unsigned int*)(page + offset) = (h<<16) + l + delta;
 428                                 }
 429 #endif
 430                                 break;
 431                         case IMAGE_REL_BASED_HIGHADJ:
 432                                 fprintf(stderr, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 433                                 break;
 434                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 435                                 fprintf(stderr, "Is this a MIPS machine ???\n");
 436                                 break;
 437                         default:
 438                                 fprintf(stderr, "Unknown fixup type\n");
 439                                 break;
 440                         }
 441                 }
 442                 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
 443         }
 444 }
 445
 446
 447
 448
 449
 450 /**********************************************************************
 451  *                      PE_LoadImage
 452  * Load one PE format DLL/EXE into memory
 453  *
 454  * Unluckily we can't just mmap the sections where we want them, for
 455  * (at least) Linux does only support offsets which are page-aligned.
 456  *
 457  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 458  * want to access them. (HMODULE32 point to the start of it)
 459  */
 460 static HMODULE32 PE_LoadImage( HFILE32 hFile )
 461 {
 462     HMODULE32 hModule;
 463     HANDLE32 mapping;
 464
 465     /* map the PE file somewhere */
 466     mapping = CreateFileMapping32A( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
 467                                     0, 0, NULL );
 468     if (!mapping)
 469     {
 470         fprintf( stderr, "PE_LoadImage: CreateFileMapping error %ld\n",
 471                  GetLastError() );
 472         return 0;
 473     }
 474     hModule = (HMODULE32)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 475     CloseHandle( mapping );
 476     if (!hModule)
 477     {
 478         fprintf( stderr, "PE_LoadImage: MapViewOfFile error %ld\n",
 479                  GetLastError() );
 480         return 0;
 481     }
 482
 483     if (PE_HEADER(hModule)->Signature != IMAGE_NT_SIGNATURE)
 484     {
 485         fprintf(stderr,"image doesn't have PE signature, but 0x%08lx\n",
 486                 PE_HEADER(hModule)->Signature );
 487         goto error;
 488     }
 489
 490     if (PE_HEADER(hModule)->FileHeader.Machine != IMAGE_FILE_MACHINE_I386)
 491     {
 492         fprintf(stderr,"trying to load PE image for unsupported architecture (");
 493         switch (PE_HEADER(hModule)->FileHeader.Machine)
 494         {
 495         case IMAGE_FILE_MACHINE_UNKNOWN: fprintf(stderr,"Unknown"); break;
 496         case IMAGE_FILE_MACHINE_I860:    fprintf(stderr,"I860"); break;
 497         case IMAGE_FILE_MACHINE_R3000:   fprintf(stderr,"R3000"); break;
 498         case IMAGE_FILE_MACHINE_R4000:   fprintf(stderr,"R4000"); break;
 499         case IMAGE_FILE_MACHINE_R10000:  fprintf(stderr,"R10000"); break;
 500         case IMAGE_FILE_MACHINE_ALPHA:   fprintf(stderr,"Alpha"); break;
 501         case IMAGE_FILE_MACHINE_POWERPC: fprintf(stderr,"PowerPC"); break;
 502         default: fprintf(stderr,"Unknown-%04x",
 503                          PE_HEADER(hModule)->FileHeader.Machine); break;
 504         }
 505         fprintf(stderr,")\n");
 506         goto error;
 507     }
 508     return hModule;
 509
 510 error:
 511     UnmapViewOfFile( (LPVOID)hModule );
 512     return 0;
 513 }
 514
 515 /**********************************************************************
 516  * This maps a loaded PE dll into the address space of the specified process.
 517  */
 518 static BOOL32 PE_MapImage( HMODULE32 *phModule, PDB32 *process,
 519                            OFSTRUCT *ofs, DWORD flags )
 520 {
 521         PE_MODREF               *pem;
 522         int                     i, result;
 523         DWORD                   load_addr;
 524         IMAGE_DATA_DIRECTORY    dir;
 525         char                    *modname;
 526         int                     vma_size;
 527         HMODULE32               hModule = *phModule;
 528
 529         IMAGE_SECTION_HEADER *pe_seg;
 530         IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hModule;
 531         IMAGE_NT_HEADERS *nt_header = PE_HEADER(hModule);
 532
 533         pem = (PE_MODREF*)HeapAlloc(process->heap,HEAP_ZERO_MEMORY,
 534                                     sizeof(*pem));
 535         /* NOTE: fixup_imports takes care of the correct order */
 536         pem->next       = process->modref_list;
 537         process->modref_list = pem;
 538
 539         if (!(nt_header->FileHeader.Characteristics & IMAGE_FILE_DLL))
 540         {
 541                 if (process->exe_modref)
 542                         fprintf(stderr,"overwriting old exe_modref... arrgh\n");
 543                 process->exe_modref = pem;
 544         }
 545
 546         load_addr = nt_header->OptionalHeader.ImageBase;
 547         vma_size = calc_vma_size( hModule );
 548         dprintf_info(win32, "Load addr is %lx\n",load_addr);
 549         load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
 550                                          MEM_RESERVE | MEM_COMMIT,
 551                                          PAGE_EXECUTE_READWRITE );
 552         if (load_addr == 0) {
 553                 load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
 554                                                  MEM_RESERVE | MEM_COMMIT,
 555                                                  PAGE_EXECUTE_READWRITE );
 556         }
 557         /* *phModule is the module32 entry in the NE_MODULE. We need to
 558          * change it here, since it can get referenced by fixup_imports()
 559          */
 560         pem->module = *phModule = (HMODULE32)load_addr;
 561
 562         dprintf_info(win32, "Load addr is really %lx, range %x\n",
 563                       load_addr, vma_size);
 564
 565         /* Store the NT header at the load addr
 566          * (FIXME: should really use mmap)
 567          */
 568         *(IMAGE_DOS_HEADER *)load_addr = *dos_header;
 569         *(IMAGE_NT_HEADERS *)(load_addr + dos_header->e_lfanew) = *nt_header;
 570
 571         pe_seg = PE_SECTIONS(hModule);
 572         for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++, pe_seg++)
 573         {
 574                 /* memcpy only non-BSS segments */
 575                 /* FIXME: this should be done by mmap(..MAP_PRIVATE|MAP_FIXED..)
 576                  * but it is not possible for (at least) Linux needs
 577                  * a page-aligned offset.
 578                  */
 579                 if(!(pe_seg->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA))
 580                     memcpy((char*)RVA(pe_seg->VirtualAddress),
 581                         (char*)(hModule + pe_seg->PointerToRawData),
 582                         pe_seg->SizeOfRawData
 583                     );
 584
 585                 result = RVA (pe_seg->VirtualAddress);
 586 #if 1
 587                 /* not needed, memory is zero */
 588                 if(strcmp(pe_seg->Name, ".bss") == 0)
 589                     memset((void *)result, 0,
 590                            pe_seg->Misc.VirtualSize ?
 591                            pe_seg->Misc.VirtualSize :
 592                            pe_seg->SizeOfRawData);
 593 #endif
 594
 595                 if(strcmp(pe_seg->Name, ".idata") == 0)
 596                         pem->pe_import = (LPIMAGE_IMPORT_DESCRIPTOR) result;
 597
 598                 if(strcmp(pe_seg->Name, ".edata") == 0)
 599                         pem->pe_export = (LPIMAGE_EXPORT_DIRECTORY) result;
 600
 601                 if(strcmp(pe_seg->Name, ".rsrc") == 0)
 602                         pem->pe_resource = (LPIMAGE_RESOURCE_DIRECTORY) result;
 603
 604                 if(strcmp(pe_seg->Name, ".reloc") == 0)
 605                         pem->pe_reloc = (LPIMAGE_BASE_RELOCATION) result;
 606         }
 607
 608         /* There is word that the actual loader does not care about the
 609            section names, and only goes for the DataDirectory */
 610         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT];
 611         if(dir.Size)
 612         {
 613                 if(pem->pe_export && (int)pem->pe_export!=RVA(dir.VirtualAddress))
 614                         fprintf(stderr,"wrong export directory??\n");
 615                 /* always trust the directory */
 616                 pem->pe_export = (LPIMAGE_EXPORT_DIRECTORY) RVA(dir.VirtualAddress);
 617         }
 618
 619         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
 620         if(dir.Size)
 621         {
 622                 /*
 623                 if(pem->pe_import && (int)pem->pe_import!=RVA(dir.VirtualAddress))
 624                         fprintf(stderr,"wrong import directory??\n");
 625                  */
 626                 pem->pe_import = (LPIMAGE_IMPORT_DESCRIPTOR) RVA(dir.VirtualAddress);
 627         }
 628
 629         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE];
 630         if(dir.Size)
 631         {
 632                 if(pem->pe_resource && (int)pem->pe_resource!=RVA(dir.VirtualAddress))
 633                         fprintf(stderr,"wrong resource directory??\n");
 634                 pem->pe_resource = (LPIMAGE_RESOURCE_DIRECTORY) RVA(dir.VirtualAddress);
 635         }
 636
 637         if(nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].Size)
 638                 dprintf_fixme(win32,"Exception directory ignored\n");
 639
 640         if(nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].Size)
 641                 dprintf_fixme(win32,"Security directory ignored\n");
 642
 643
 644
 645         dir=nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 646         if(dir.Size)
 647         {
 648                 if(pem->pe_reloc && (int)pem->pe_reloc!= RVA(dir.VirtualAddress))
 649                         fprintf(stderr,"wrong relocation list??\n");
 650                 pem->pe_reloc = (void *) RVA(dir.VirtualAddress);
 651         }
 652
 653         if(nt_header->OptionalHeader.DataDirectory
 654                 [IMAGE_DIRECTORY_ENTRY_COPYRIGHT].Size)
 655                 dprintf_fixme(win32,"Copyright string ignored\n");
 656
 657         if(nt_header->OptionalHeader.DataDirectory
 658                 [IMAGE_DIRECTORY_ENTRY_GLOBALPTR].Size)
 659                 dprintf_fixme(win32,"Global Pointer (MIPS) ignored\n");
 660
 661         if(nt_header->OptionalHeader.DataDirectory
 662                 [IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG].Size)
 663                 dprintf_fixme(win32,"Load Configuration directory ignored\n");
 664
 665         if(nt_header->OptionalHeader.DataDirectory
 666                 [IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT].Size)
 667                 dprintf_fixme(win32,"Bound Import directory ignored\n");
 668
 669         if(nt_header->OptionalHeader.DataDirectory
 670                 [IMAGE_DIRECTORY_ENTRY_IAT].Size)
 671                 dprintf_fixme(win32,"Import Address Table directory ignored\n");
 672         if(nt_header->OptionalHeader.DataDirectory[13].Size)
 673                 dprintf_fixme(win32,"Unknown directory 13 ignored\n");
 674         if(nt_header->OptionalHeader.DataDirectory[14].Size)
 675                 dprintf_fixme(win32,"Unknown directory 14 ignored\n");
 676         if(nt_header->OptionalHeader.DataDirectory[15].Size)
 677                 dprintf_fixme(win32,"Unknown directory 15 ignored\n");
 678
 679         if(pem->pe_reloc)       do_relocations(pem);
 680         if(pem->pe_export)      dump_exports(pem->module);
 681         if(pem->pe_import)      {
 682                 if (fixup_imports(process,pem,hModule)) {
 683                         PE_MODREF       **xpem;
 684
 685                         /* remove entry from modref chain */
 686                         xpem = &(process->modref_list);
 687                         while (*xpem) {
 688                                 if (*xpem==pem) {
 689                                         *xpem = pem->next;
 690                                         break;
 691                                 }
 692                                 xpem = &((*xpem)->next);
 693                         }
 694                         /* FIXME: there are several more dangling references
 695                          * left. Including dlls loaded by this dll before the
 696                          * failed one. Unrolling is rather difficult with the
 697                          * current structure and we can leave it them lying
 698                          * around with no problems, so we don't care
 699                          */
 700                         return 0;
 701                 }
 702         }
 703
 704         if (pem->pe_export)
 705                 modname = (char*)RVA(pem->pe_export->Name);
 706         else {
 707                 char *s;
 708                 modname = s = ofs->szPathName;
 709                 while ((s=strchr(modname,'\\')))
 710                         modname = s+1;
 711                 if ((s=strchr(modname,'.')))
 712                         *s='\0';
 713         }
 714
 715         /* Now that we got everything at the right address,
 716          * we can unmap the previous module */
 717         UnmapViewOfFile( (LPVOID)hModule );
 718         return 1;
 719 }
 720
 721 HINSTANCE16 MODULE_CreateInstance(HMODULE16 hModule,LOADPARAMS *params);
 722
 723 /******************************************************************************
 724  * The PE Library Loader frontend.
 725  * FIXME: handle the flags.
 726  *        internal module handling should be made better here (and in builtin.c)
 727  */
 728 HMODULE32 PE_LoadLibraryEx32A (LPCSTR name, PDB32 *process,
 729                                HFILE32 hFile, DWORD flags)
 730 {
 731         OFSTRUCT        ofs;
 732         HMODULE32       hModule;
 733         NE_MODULE       *pModule;
 734         PE_MODREF       *pem;
 735
 736         if ((hModule = MODULE_FindModule( name ))) {
 737                 /* the .DLL is either loaded or internal */
 738                 hModule = MODULE_HANDLEtoHMODULE32(hModule);
 739                 if (!HIWORD(hModule)) /* internal (or bad) */
 740                         return hModule;
 741                 /* check if this module is already mapped */
 742                 pem     = process->modref_list;
 743                 while (pem) {
 744                         if (pem->module == hModule) return hModule;
 745                         pem = pem->next;
 746                 }
 747                 pModule = MODULE_GetPtr(hModule);
 748                 if (pModule->flags & NE_FFLAGS_BUILTIN) {
 749                         IMAGE_DOS_HEADER        *dh;
 750                         IMAGE_NT_HEADERS        *nh;
 751                         IMAGE_SECTION_HEADER    *sh;
 752
 753                         /* we only come here if we already have 'loaded' the
 754                          * internal dll but in another process. Just create
 755                          * a PE_MODREF and return.
 756                          */
 757                         pem = (PE_MODREF*)HeapAlloc(process->heap,
 758                                 HEAP_ZERO_MEMORY,sizeof(*pem));
 759                         pem->module          = hModule;
 760                         dh = (IMAGE_DOS_HEADER*)pem->module;
 761                         nh = (IMAGE_NT_HEADERS*)(dh+1);
 762                         sh = (IMAGE_SECTION_HEADER*)(nh+1);
 763                         pem->pe_export       = (IMAGE_EXPORT_DIRECTORY*)(sh+2);
 764                         pem->next            = process->modref_list;
 765                         process->modref_list = pem;
 766                         return hModule;
 767                 }
 768         } else {
 769
 770                 /* try to load builtin, enabled modules first */
 771                 if ((hModule = BUILTIN32_LoadModule( name, FALSE, process )))
 772                     return MODULE_HANDLEtoHMODULE32( hModule );
 773
 774                 /* try to open the specified file */
 775                 if (HFILE_ERROR32==(hFile=OpenFile32(name,&ofs,OF_READ))) {
 776                         /* Now try the built-in even if disabled */
 777                         if ((hModule = BUILTIN32_LoadModule( name, TRUE, process ))) {
 778                                 fprintf( stderr, "Warning: could not load Windows DLL '%s', using built-in module.\n", name );
 779                                 return MODULE_HANDLEtoHMODULE32( hModule );
 780                         }
 781                         return 1;
 782                 }
 783                 if ((hModule = MODULE_CreateDummyModule( &ofs )) < 32) {
 784                         _lclose32(hFile);
 785                         return hModule;
 786                 }
 787                 pModule         = (NE_MODULE *)GlobalLock16( hModule );
 788                 pModule->flags  = NE_FFLAGS_WIN32;
 789                 pModule->module32 = PE_LoadImage( hFile );
 790                 CloseHandle( hFile );
 791                 if (pModule->module32 < 32) return 21;
 792         }
 793         /* recurse */
 794         if (!PE_MapImage( &(pModule->module32), process, &ofs,flags)) {
 795                 /* should free this module and the already referenced ones */
 796                 return 0;
 797         }
 798         return pModule->module32;
 799 }
 800
 801 /*****************************************************************************
 802  * Load the PE main .EXE. All other loading is done by PE_LoadLibraryEx32A
 803  * FIXME: this function should use PE_LoadLibraryEx32A, but currently can't
 804  * due to the TASK_CreateTask stuff.
 805  */
 806 HINSTANCE16 PE_LoadModule( HFILE32 hFile, OFSTRUCT *ofs, LOADPARAMS* params )
 807 {
 808     HMODULE16 hModule16;
 809     HMODULE32 hModule32;
 810     HINSTANCE16 hInstance;
 811     NE_MODULE *pModule;
 812     THDB *thdb = THREAD_Current();
 813
 814     if ((hModule16 = MODULE_CreateDummyModule( ofs )) < 32) return hModule16;
 815     pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 816     pModule->flags = NE_FFLAGS_WIN32;
 817
 818     pModule->module32 = hModule32 = PE_LoadImage( hFile );
 819     CloseHandle( hFile );
 820     if (hModule32 < 32) return 21;
 821
 822     hInstance = MODULE_CreateInstance( hModule16, params );
 823     if (!(PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL))
 824     {
 825         HTASK16 hTask = TASK_CreateTask( hModule16, hInstance, 0,
 826                                          params->hEnvironment,
 827                                       (LPSTR)PTR_SEG_TO_LIN( params->cmdLine ),
 828                                *((WORD*)PTR_SEG_TO_LIN(params->showCmd) + 1) );
 829         TDB *pTask = (TDB *)GlobalLock16( hTask );
 830         thdb = pTask->thdb;
 831     }
 832     if (!PE_MapImage( &(pModule->module32), thdb->process, ofs, 0 ))
 833     {
 834         /* FIXME: should destroy the task created and free referenced stuff */
 835         return 0;
 836     }
 837     /* FIXME: Yuck. Is there no other good place to do that? */
 838     PE_InitTls( thdb );
 839     return hInstance;
 840 }
 841
 842 int PE_UnloadImage( HMODULE32 hModule )
 843 {
 844         fprintf(stderr,"PEunloadImage() called!\n");
 845         /* free resources, image, unmap */
 846         return 1;
 847 }
 848
 849 /* Called if the library is loaded or freed.
 850  * NOTE: if a thread attaches a DLL, the current thread will only do
 851  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 852  * (SDK)
 853  */
 854 static void PE_InitDLL(PE_MODREF *pem, DWORD type,LPVOID lpReserved)
 855 {
 856     if (type==DLL_PROCESS_ATTACH)
 857         pem->flags |= PE_MODREF_PROCESS_ATTACHED;
 858
 859     /*  DLL_ATTACH_PROCESS:
 860      *          lpreserved is NULL for dynamic loads, not-NULL for static loads
 861      *  DLL_DETACH_PROCESS:
 862      *          lpreserved is NULL if called by FreeLibrary, not-NULL otherwise
 863      *  the SDK doesn't mention anything for DLL_THREAD_*
 864      */
 865
 866     /* Is this a library? And has it got an entrypoint? */
 867     if ((PE_HEADER(pem->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 868         (PE_HEADER(pem->module)->OptionalHeader.AddressOfEntryPoint)
 869     ) {
 870         FARPROC32 entry = (FARPROC32)RVA_PTR( pem->module,
 871                                           OptionalHeader.AddressOfEntryPoint );
 872         dprintf_info(relay, "CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
 873                        entry, pem->module, type, lpReserved );
 874         entry( pem->module, type, lpReserved );
 875     }
 876 }
 877
 878 /* Call the DLLentry function of all dlls used by that process.
 879  * (NOTE: this may recursively call this function (if a library calls
 880  * LoadLibrary) ... but it won't matter)
 881  */
 882 void PE_InitializeDLLs(PDB32 *process,DWORD type,LPVOID lpReserved) {
 883         PE_MODREF       *pem;
 884
 885         pem = process->modref_list;
 886         while (pem) {
 887                 if (pem->flags & PE_MODREF_NO_DLL_CALLS) {
 888                         pem = pem->next;
 889                         continue;
 890                 }
 891                 if (type==DLL_PROCESS_ATTACH) {
 892                         if (pem->flags & PE_MODREF_PROCESS_ATTACHED) {
 893                                 pem = pem->next;
 894                                 continue;
 895                         }
 896                 }
 897                 PE_InitDLL( pem, type, lpReserved );
 898                 pem = pem->next;
 899         }
 900 }
 901
 902 void PE_InitTls(THDB *thdb)
 903 {
 904         /* FIXME: tls callbacks ??? */
 905         PE_MODREF               *pem;
 906         IMAGE_NT_HEADERS        *peh;
 907         DWORD                   size,datasize;
 908         LPVOID                  mem;
 909         LPIMAGE_TLS_DIRECTORY   pdir;
 910         PDB32                   *pdb = thdb->process;
 911
 912         pem = pdb->modref_list;
 913         while (pem) {
 914                 peh = PE_HEADER(pem->module);
 915                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress) {
 916                         pem = pem->next;
 917                         continue;
 918                 }
 919                 pdir = (LPVOID)(pem->module + peh->OptionalHeader.
 920                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 921
 922                 if (!(pem->flags & PE_MODREF_TLS_ALLOCED)) {
 923                         pem->tlsindex = THREAD_TlsAlloc(thdb);
 924                         *(pdir->AddressOfIndex)=pem->tlsindex;
 925                 }
 926                 pem->flags |= PE_MODREF_TLS_ALLOCED;
 927                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 928                 size    = datasize + pdir->SizeOfZeroFill;
 929                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 930                 memcpy(mem,(LPVOID) pdir->StartAddressOfRawData, datasize);
 931                 /* don't use TlsSetValue, we are in the wrong thread */
 932                 thdb->tls_array[pem->tlsindex] = mem;
 933                 pem=pem->next;
 934         }
 935 }
 936
 937 /****************************************************************************
 938  *              DisableThreadLibraryCalls (KERNEL32.74)
 939  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
 940  */
 941 BOOL32 WINAPI DisableThreadLibraryCalls(HMODULE32 hModule)
 942 {
 943         PDB32   *process = PROCESS_Current();
 944         PE_MODREF       *pem = process->modref_list;
 945
 946         while (pem) {
 947                 if (pem->module == hModule)
 948                         pem->flags|=PE_MODREF_NO_DLL_CALLS;
 949                 pem = pem->next;
 950         }
 951         return TRUE;
 952 }