git.oblomov.eu Git - wine/blob - loader/pe_image.c

   1 #ifndef WINELIB
   2 /*
   3  *  Copyright   1994    Eric Youndale & Erik Bos
   4  *  Copyright   1995    Martin von Löwis
   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
  13 #include <ctype.h>
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include <unistd.h>
  18 #include <sys/types.h>
  19 #include <sys/mman.h>
  20 #include "windows.h"
  21 #include "winbase.h"
  22 #include "callback.h"
  23 #include "neexe.h"
  24 #include "peexe.h"
  25 #include "pe_image.h"
  26 #include "module.h"
  27 #include "global.h"
  28 #include "task.h"
  29 #include "ldt.h"
  30 #include "registers.h"
  31 #include "stddebug.h"
  32 #include "debug.h"
  33 #include "xmalloc.h"
  34
  35 void my_wcstombs(char * result, u_short * source, int len)
  36 {
  37   while(len--) {
  38     /* this used to be isascii, but see isascii implementation in Linux'
  39            ctype.h */
  40     if(*source<255) *result++ = *source++;
  41     else {
  42       printf("Unable to handle unicode right now\n");
  43       exit(0);
  44     }
  45   };
  46 }
  47
  48 #if 0
  49 char * xmmap(char * vaddr, unsigned int v_size, unsigned int r_size,
  50         int prot, int flags, int fd, unsigned int file_offset)
  51 {
  52   char * result;
  53   /* .bss has no associated storage in the PE file */
  54   if(r_size)
  55     v_size=r_size;
  56   else
  57 #if defined(__svr4__) || defined(_SCO_DS)
  58     fprintf(stderr,"xmmap: %s line %d doesn't support MAP_ANON\n",__FILE__, __LINE__);
  59 #else
  60     flags |= MAP_ANON;
  61 #endif
  62   result = mmap(vaddr, v_size, prot, flags, fd, file_offset);
  63   if((unsigned int) result != 0xffffffff) return result;
  64
  65   /* Sigh.  Alignment must be wrong for mmap.  Do this the hard way. */
  66   if(!(flags & MAP_FIXED)) {
  67     vaddr = (char *)0x40000000;
  68     flags |= MAP_FIXED;
  69   };
  70
  71   mmap(vaddr, v_size, prot, MAP_ANONYMOUS | flags, 0, 0);
  72   lseek(fd, file_offset, SEEK_SET);
  73   read(fd, vaddr, v_size);
  74   return vaddr;
  75 };
  76 #endif
  77
  78 void dump_exports(struct PE_Export_Directory * pe_exports, unsigned int load_addr)
  79 {
  80   char * Module;
  81   int i;
  82   u_short * ordinal;
  83   u_long * function;
  84   u_char ** name, *ename;
  85
  86   Module = ((char *) load_addr) + pe_exports->Name;
  87   dprintf_win32(stddeb,"\n*******EXPORT DATA*******\nModule name is %s, %ld functions, %ld names\n",
  88          Module,
  89          pe_exports->Number_Of_Functions,
  90          pe_exports->Number_Of_Names);
  91
  92   ordinal = (u_short *) (((char *) load_addr) + (int) pe_exports->Address_Of_Name_Ordinals);
  93   function = (u_long *)  (((char *) load_addr) + (int) pe_exports->AddressOfFunctions);
  94   name = (u_char **)  (((char *) load_addr) + (int) pe_exports->AddressOfNames);
  95
  96   dprintf_win32(stddeb,"%-32s Ordinal Virt Addr\n", "Function Name");
  97   for(i=0; i< pe_exports->Number_Of_Functions; i++)
  98     {
  99       ename =  (char *) (((char *) load_addr) + (int) *name++);
 100       dprintf_win32(stddeb,"%-32s %4d    %8.8lx\n", ename, *ordinal++, *function++);
 101     }
 102 }
 103
 104 static DWORD PE_FindExportedFunction(struct pe_data *pe, char* funcName)
 105 {
 106         struct PE_Export_Directory * exports = pe->pe_export;
 107         unsigned load_addr = pe->load_addr;
 108         u_short * ordinal;
 109         u_long * function;
 110         u_char ** name, *ename;
 111         int i;
 112         if(!exports)return 0;
 113         ordinal = (u_short *) (((char *) load_addr) + (int) exports->Address_Of_Name_Ordinals);
 114         function = (u_long *)  (((char *) load_addr) + (int) exports->AddressOfFunctions);
 115         name = (u_char **)  (((char *) load_addr) + (int) exports->AddressOfNames);
 116         for(i=0; i<exports->Number_Of_Functions; i++)
 117         {
 118                 if(HIWORD(funcName))
 119                 {
 120                         ename =  (char *) (((char *) load_addr) + (int) *name);
 121                         if(strcmp(ename,funcName)==0)
 122                                 return load_addr+*function;
 123                 }else{
 124                         if(funcName == (int)*ordinal + exports->Base)
 125                                 return load_addr+*function;
 126                 }
 127                 function++;
 128                 ordinal++;
 129                 name++;
 130         }
 131         return 0;
 132 }
 133
 134 DWORD PE_GetProcAddress(HMODULE hModule, char* function)
 135 {
 136     NE_MODULE *pModule;
 137
 138     if (!(pModule = MODULE_GetPtr( hModule ))) return 0;
 139     if (!(pModule->flags & NE_FFLAGS_WIN32) || !pModule->pe_module) return 0;
 140     if (pModule->flags & NE_FFLAGS_BUILTIN)
 141         return BUILTIN_GetProcAddress32( pModule, function );
 142     return PE_FindExportedFunction( pModule->pe_module, function );
 143 }
 144
 145 void fixup_imports(struct pe_data *pe, HMODULE hModule)
 146 {
 147   struct PE_Import_Directory * pe_imp;
 148   int fixup_failed=0;
 149   unsigned int load_addr = pe->load_addr;
 150   int i;
 151   NE_MODULE *ne_mod;
 152   HMODULE *mod_ptr;
 153
 154  /* OK, now dump the import list */
 155   dprintf_win32(stddeb, "\nDumping imports list\n");
 156
 157   /* first, count the number of imported non-internal modules */
 158   pe_imp = pe->pe_import;
 159   for(i=0;pe_imp->ModuleName;pe_imp++)
 160         i++;
 161
 162   /* Now, allocate memory for dlls_to_init */
 163   ne_mod = GlobalLock16(hModule);
 164   ne_mod->dlls_to_init = GLOBAL_Alloc(GMEM_ZEROINIT,(i+1) * sizeof(HMODULE),
 165                                       hModule, FALSE, FALSE, FALSE );
 166   mod_ptr = GlobalLock16(ne_mod->dlls_to_init);
 167   /* load the modules and put their handles into the list */
 168   for(i=0,pe_imp = pe->pe_import;pe_imp->ModuleName;pe_imp++)
 169   {
 170         char *name = (char*)load_addr+pe_imp->ModuleName;
 171         mod_ptr[i] = LoadModule(name,(LPVOID)-1);
 172         if(mod_ptr[i]<=(HMODULE)32)
 173         {
 174                 fprintf(stderr,"Module %s not found\n",name);
 175                 exit(0);
 176         }
 177         i++;
 178   }
 179   pe_imp = pe->pe_import;
 180   while (pe_imp->ModuleName)
 181     {
 182       char * Module;
 183       struct pe_import_name * pe_name;
 184       unsigned int * import_list, *thunk_list;
 185
 186       Module = ((char *) load_addr) + pe_imp->ModuleName;
 187       dprintf_win32(stddeb, "%s\n", Module);
 188
 189    if(pe_imp->Import_List != 0) { /* original microsoft style */
 190       dprintf_win32(stddeb, "Microsoft style imports used\n");
 191       import_list = (unsigned int *)
 192         (((unsigned int) load_addr) + pe_imp->Import_List);
 193           thunk_list = (unsigned int *)
 194           (((unsigned int) load_addr) + pe_imp->Thunk_List);
 195
 196
 197     while(*import_list)
 198         {
 199           pe_name = (struct pe_import_name *) ((int) load_addr + ((unsigned)*import_list & ~0x80000000));
 200           if((unsigned)*import_list & 0x80000000)
 201           {
 202                 int ordinal=*import_list & (0x80000000-1);
 203                 dprintf_win32(stddeb,"--- Ordinal %s,%d\n", Module, ordinal);
 204                 *thunk_list = WIN32_GetProcAddress(MODULE_FindModule(Module),
 205                         ordinal);
 206                 if(!*thunk_list)
 207                 {
 208                         fprintf(stderr,"No implementation for %s.%d\n",Module,
 209                                 ordinal);
 210                         fixup_failed=1;
 211                 }
 212           }else{ /* import by name */
 213           dprintf_win32(stddeb, "--- %s %s.%d\n", pe_name->Name, Module, pe_name->Hint);
 214 #ifndef WINELIB /* FIXME: JBP: Should this happen in libwine.a? */
 215                 *thunk_list = WIN32_GetProcAddress(MODULE_FindModule(Module),
 216                                 pe_name->Name);
 217           if(!*thunk_list)
 218           {
 219                 fprintf(stderr,"No implementation for %s.%d(%s)\n",Module,
 220                         pe_name->Hint, pe_name->Name);
 221                 fixup_failed=1;
 222           }
 223
 224 #else
 225           fprintf(stderr,"JBP: Call to RELAY32_GetEntryPoint being ignored.\n");
 226 #endif
 227                 }
 228
 229           import_list++;
 230           thunk_list++;
 231         }
 232     } else { /* Borland style */
 233       dprintf_win32(stddeb, "Borland style imports used\n");
 234       thunk_list = (unsigned int *)
 235         (((unsigned int) load_addr) + pe_imp->Thunk_List);
 236       while(*thunk_list) {
 237         pe_name = (struct pe_import_name *) ((int) load_addr + *thunk_list);
 238         if((unsigned)pe_name & 0x80000000) {
 239           fprintf(stderr,"Import by ordinal not supported\n");
 240           exit(0);
 241         }
 242         dprintf_win32(stddeb, "--- %s %s.%d\n", pe_name->Name, Module, pe_name->Hint);
 243 #ifndef WINELIB /* FIXME: JBP: Should this happen in libwine.a? */
 244         /* FIXME: Both calls should be unified into GetProcAddress */
 245         *thunk_list = WIN32_GetProcAddress(MODULE_FindModule(Module),
 246                                            pe_name->Name);
 247 #else
 248         fprintf(stderr,"JBP: Call to RELAY32_GetEntryPoint being ignored.\n");
 249 #endif
 250         if(!*thunk_list) {
 251           fprintf(stderr,"No implementation for %s.%d\n",Module, pe_name->Hint);
 252           fixup_failed=1;
 253         }
 254         thunk_list++;
 255       }
 256     }
 257     pe_imp++;
 258   }
 259   if(fixup_failed)exit(1);
 260 }
 261
 262 static void calc_vma_size(struct pe_data *pe)
 263 {
 264   int i;
 265
 266   dprintf_win32(stddeb, "Dump of segment table\n");
 267   dprintf_win32(stddeb, "   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 268   for(i=0; i< pe->pe_header->coff.NumberOfSections; i++)
 269     {
 270       dprintf_win32(stddeb, "%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 271              pe->pe_seg[i].Name,
 272              pe->pe_seg[i].Virtual_Size,
 273              pe->pe_seg[i].Virtual_Address,
 274              pe->pe_seg[i].Size_Of_Raw_Data,
 275              pe->pe_seg[i].PointerToRawData,
 276              pe->pe_seg[i].PointerToRelocations,
 277              pe->pe_seg[i].PointerToLinenumbers,
 278              pe->pe_seg[i].NumberOfRelocations,
 279              pe->pe_seg[i].NumberOfLinenumbers,
 280              pe->pe_seg[i].Characteristics);
 281           pe->vma_size = MAX(pe->vma_size,
 282                         pe->pe_seg[i].Virtual_Address +
 283                         pe->pe_seg[i].Size_Of_Raw_Data);
 284     }
 285 }
 286
 287 static void do_relocations(struct pe_data *pe)
 288 {
 289         int delta = pe->load_addr - pe->base_addr;
 290         struct PE_Reloc_Block *r = pe->pe_reloc;
 291         int hdelta = (delta >> 16) & 0xFFFF;
 292         int ldelta = delta & 0xFFFF;
 293         /* int reloc_size = */
 294         if(delta == 0)
 295                 /* Nothing to do */
 296                 return;
 297         while(r->PageRVA)
 298         {
 299                 char *page = (char*)pe->load_addr + r->PageRVA;
 300                 int count = (r->BlockSize - 8)/2;
 301                 int i;
 302                 dprintf_fixup(stddeb, "%x relocations for page %lx\n",
 303                         count, r->PageRVA);
 304                 /* patching in reverse order */
 305                 for(i=0;i<count;i++)
 306                 {
 307                         int offset = r->Relocations[i] & 0xFFF;
 308                         int type = r->Relocations[i] >> 12;
 309                         dprintf_fixup(stddeb,"patching %x type %x\n", offset, type);
 310                         switch(type)
 311                         {
 312                         case IMAGE_REL_BASED_ABSOLUTE: break;
 313                         case IMAGE_REL_BASED_HIGH:
 314                                 *(short*)(page+offset) += hdelta;
 315                                 break;
 316                         case IMAGE_REL_BASED_LOW:
 317                                 *(short*)(page+offset) += ldelta;
 318                                 break;
 319                         case IMAGE_REL_BASED_HIGHLOW:
 320 #if 1
 321                                 *(int*)(page+offset) += delta;
 322 #else
 323                                 { int h=*(unsigned short*)(page+offset);
 324                                   int l=r->Relocations[++i];
 325                                   *(unsigned int*)(page + offset) = (h<<16) + l + delta;
 326                                 }
 327 #endif
 328                                 break;
 329                         case IMAGE_REL_BASED_HIGHADJ:
 330                                 fprintf(stderr, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 331                                 break;
 332                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 333                                 fprintf(stderr, "Is this a MIPS machine ???\n");
 334                                 break;
 335                         default:
 336                                 fprintf(stderr, "Unknown fixup type\n");
 337                                 break;
 338                         }
 339                 }
 340                 r = (struct PE_Reloc_Block*)((char*)r + r->BlockSize);
 341         }
 342 }
 343
 344
 345
 346
 347
 348 /**********************************************************************
 349  *                      PE_LoadImage
 350  * Load one PE format executable into memory
 351  */
 352 static struct pe_data *PE_LoadImage( int fd, HMODULE hModule, WORD offset )
 353 {
 354     struct pe_data *pe;
 355     int i, result;
 356     unsigned int load_addr;
 357     struct Directory dir;
 358
 359         pe = xmalloc(sizeof(struct pe_data));
 360         memset(pe,0,sizeof(struct pe_data));
 361         pe->pe_header = xmalloc(sizeof(struct pe_header_s));
 362
 363         /* read PE header */
 364         lseek( fd, offset, SEEK_SET);
 365         read( fd, pe->pe_header, sizeof(struct pe_header_s));
 366
 367         /* read sections */
 368         pe->pe_seg = xmalloc(sizeof(struct pe_segment_table) *
 369                                    pe->pe_header->coff.NumberOfSections);
 370         read( fd, pe->pe_seg, sizeof(struct pe_segment_table) *
 371                         pe->pe_header->coff.NumberOfSections);
 372
 373         load_addr = pe->pe_header->opt_coff.BaseOfImage;
 374         pe->base_addr=load_addr;
 375         pe->vma_size=0;
 376         dprintf_win32(stddeb, "Load addr is %x\n",load_addr);
 377         calc_vma_size(pe);
 378
 379         /* We use malloc here, while a huge part of that address space does
 380            not be supported by actual memory. It has to be contiguous, though.
 381            I don't know if mmap("/dev/null"); would do any better.
 382            What I'd really like to do is a Win32 style VirtualAlloc/MapViewOfFile
 383            sequence */
 384         load_addr = pe->load_addr = malloc(pe->vma_size);
 385         dprintf_win32(stddeb, "Load addr is really %x, range %x\n",
 386                 pe->load_addr, pe->vma_size);
 387
 388
 389         for(i=0; i < pe->pe_header->coff.NumberOfSections; i++)
 390         {
 391                 /* load only non-BSS segments */
 392                 if(pe->pe_seg[i].Characteristics &
 393                         ~ IMAGE_SCN_TYPE_CNT_UNINITIALIZED_DATA)
 394                 if(lseek(fd,pe->pe_seg[i].PointerToRawData,SEEK_SET) == -1
 395                 || read(fd,load_addr + pe->pe_seg[i].Virtual_Address,
 396                                 pe->pe_seg[i].Size_Of_Raw_Data)
 397                                 != pe->pe_seg[i].Size_Of_Raw_Data)
 398                 {
 399                         fprintf(stderr,"Failed to load section %x\n", i);
 400                         exit(0);
 401                 }
 402                 result = load_addr + pe->pe_seg[i].Virtual_Address;
 403 #if 0
 404         if(!load_addr) {
 405
 406                 result = (int)xmmap((char *)0, pe->pe_seg[i].Virtual_Size,
 407                         pe->pe_seg[i].Size_Of_Raw_Data, 7,
 408                         MAP_PRIVATE, fd, pe->pe_seg[i].PointerToRawData);
 409                 load_addr = (unsigned int) result -  pe->pe_seg[i].Virtual_Address;
 410         } else {
 411                 result = (int)xmmap((char *) load_addr + pe->pe_seg[i].Virtual_Address,
 412                           pe->pe_seg[i].Virtual_Size,
 413                       pe->pe_seg[i].Size_Of_Raw_Data, 7, MAP_PRIVATE | MAP_FIXED,
 414                       fd, pe->pe_seg[i].PointerToRawData);
 415         }
 416         if(result==-1){
 417                 fprintf(stderr,"Could not load section %x to desired address %lx\n",
 418                         i, load_addr+pe->pe_seg[i].Virtual_Address);
 419                 fprintf(stderr,"Need to implement relocations now\n");
 420                 exit(0);
 421         }
 422 #endif
 423
 424         if(strcmp(pe->pe_seg[i].Name, ".bss") == 0)
 425             memset((void *)result, 0,
 426                    pe->pe_seg[i].Virtual_Size ?
 427                    pe->pe_seg[i].Virtual_Size :
 428                    pe->pe_seg[i].Size_Of_Raw_Data);
 429
 430         if(strcmp(pe->pe_seg[i].Name, ".idata") == 0)
 431                 pe->pe_import = (struct PE_Import_Directory *) result;
 432
 433         if(strcmp(pe->pe_seg[i].Name, ".edata") == 0)
 434                 pe->pe_export = (struct PE_Export_Directory *) result;
 435
 436         if(strcmp(pe->pe_seg[i].Name, ".rsrc") == 0) {
 437             pe->pe_resource = (struct PE_Resource_Directory *) result;
 438 #if 0
 439 /* FIXME pe->resource_offset should be deleted from structure if this
 440  ifdef doesn't break anything */
 441             /* save offset for PE_FindResource */
 442             pe->resource_offset = pe->pe_seg[i].Virtual_Address -
 443                                         pe->pe_seg[i].PointerToRawData;
 444 #endif
 445             }
 446         if(strcmp(pe->pe_seg[i].Name, ".reloc") == 0)
 447                 pe->pe_reloc = (struct PE_Reloc_Block *) result;
 448
 449         }
 450
 451         /* There is word that the actual loader does not care about the
 452            section names, and only goes for the DataDirectory */
 453         dir=pe->pe_header->opt_coff.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
 454         if(dir.Size)
 455         {
 456                 if(pe->pe_export &&
 457                         pe->pe_export!=load_addr+dir.Virtual_address)
 458                         fprintf(stderr,"wrong export directory??\n");
 459                 /* always trust the directory */
 460                 pe->pe_export = load_addr+dir.Virtual_address;
 461         }
 462
 463         dir=pe->pe_header->opt_coff.DataDirectory[IMAGE_FILE_IMPORT_DIRECTORY];
 464         if(dir.Size)
 465         {
 466                 if(pe->pe_import &&
 467                         pe->pe_import!=load_addr+dir.Virtual_address)
 468                         fprintf(stderr,"wrong import directory??\n");
 469                 pe->pe_import = load_addr+dir.Virtual_address;
 470         }
 471
 472         dir=pe->pe_header->opt_coff.DataDirectory[IMAGE_FILE_RESOURCE_DIRECTORY];
 473         if(dir.Size)
 474         {
 475                 if(pe->pe_resource &&
 476                         pe->pe_resource!=load_addr+dir.Virtual_address)
 477                         fprintf(stderr,"wrong resource directory??\n");
 478                 pe->pe_resource = load_addr+dir.Virtual_address;
 479         }
 480
 481         dir=pe->pe_header->opt_coff.DataDirectory[IMAGE_FILE_BASE_RELOCATION_TABLE];
 482         if(dir.Size)
 483         {
 484                 if(pe->pe_reloc &&
 485                         pe->pe_reloc!=load_addr+dir.Virtual_address)
 486                         fprintf(stderr,"wrong relocation list??\n");
 487                 pe->pe_reloc = load_addr+dir.Virtual_address;
 488         }
 489
 490         if(pe->pe_header->opt_coff.DataDirectory
 491                 [IMAGE_FILE_EXCEPTION_DIRECTORY].Size)
 492                 dprintf_win32(stdnimp,"Exception directory ignored\n");
 493
 494         if(pe->pe_header->opt_coff.DataDirectory
 495                 [IMAGE_FILE_SECURITY_DIRECTORY].Size)
 496                 dprintf_win32(stdnimp,"Security directory ignored\n");
 497
 498         if(pe->pe_header->opt_coff.DataDirectory
 499                 [IMAGE_FILE_DEBUG_DIRECTORY].Size)
 500                 dprintf_win32(stdnimp,"Debug directory ignored\n");
 501
 502         if(pe->pe_header->opt_coff.DataDirectory
 503                 [IMAGE_FILE_DESCRIPTION_STRING].Size)
 504                 dprintf_win32(stdnimp,"Description string ignored\n");
 505
 506         if(pe->pe_header->opt_coff.DataDirectory
 507                 [IMAGE_FILE_MACHINE_VALUE].Size)
 508                 dprintf_win32(stdnimp,"Machine Value ignored\n");
 509
 510         if(pe->pe_header->opt_coff.DataDirectory
 511                 [IMAGE_FILE_THREAD_LOCAL_STORAGE].Size)
 512                  dprintf_win32(stdnimp,"Thread local storage ignored\n");
 513
 514         if(pe->pe_header->opt_coff.DataDirectory
 515                 [IMAGE_FILE_CALLBACK_DIRECTORY].Size)
 516                 dprintf_win32(stdnimp,"Callback directory ignored\n");
 517
 518
 519         if(pe->pe_import) fixup_imports(pe, hModule);
 520         if(pe->pe_export) dump_exports(pe->pe_export,load_addr);
 521         if(pe->pe_reloc) do_relocations(pe);
 522         return pe;
 523 }
 524
 525 HINSTANCE MODULE_CreateInstance(HMODULE hModule,LOADPARAMS *params);
 526 void InitTask(struct sigcontext_struct context);
 527
 528 HINSTANCE PE_LoadModule( int fd, OFSTRUCT *ofs, LOADPARAMS* params )
 529 {
 530         PE_MODULE *pe;
 531         int size, of_size;
 532         NE_MODULE *pModule;
 533         SEGTABLEENTRY *pSegment;
 534         char *pStr;
 535         DWORD cts;
 536         HMODULE hModule;
 537         HINSTANCE hInstance;
 538         struct mz_header_s mz_header;
 539
 540         lseek(fd,0,SEEK_SET);
 541         read( fd, &mz_header, sizeof(mz_header) );
 542
 543         of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
 544                   + strlen(ofs->szPathName) + 1;
 545         size = sizeof(NE_MODULE) +
 546                /* loaded file info */
 547                of_size +
 548                /* segment table: DS,CS */
 549                2 * sizeof(SEGTABLEENTRY) +
 550                /* name table */
 551                9 +
 552                /* several empty tables */
 553                8;
 554
 555         hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
 556         if (!hModule) return (HINSTANCE)11;  /* invalid exe */
 557
 558         FarSetOwner( hModule, hModule );
 559
 560         pModule = (NE_MODULE*)GlobalLock16(hModule);
 561
 562         /* Set all used entries */
 563         pModule->magic=NE_SIGNATURE;
 564         pModule->count=1;
 565         pModule->next=0;
 566         pModule->flags=NE_FFLAGS_WIN32;
 567         pModule->dgroup=1;
 568         pModule->ss=1;
 569         pModule->cs=2;
 570         /* Who wants to LocalAlloc for a PE Module? */
 571         pModule->heap_size=0x1000;
 572         pModule->stack_size=0xF000;
 573         pModule->seg_count=1;
 574         pModule->modref_count=0;
 575         pModule->nrname_size=0;
 576         pModule->fileinfo=sizeof(NE_MODULE);
 577         pModule->os_flags=NE_OSFLAGS_WINDOWS;
 578         pModule->expected_version=0x30A;
 579         pModule->self = hModule;
 580
 581         /* Set loaded file information */
 582         memcpy( pModule + 1, ofs, of_size );
 583         ((OFSTRUCT *)(pModule+1))->cBytes = of_size - 1;
 584
 585         pSegment=(SEGTABLEENTRY*)((char*)(pModule + 1) + of_size);
 586         pModule->seg_table=pModule->dgroup_entry=(int)pSegment-(int)pModule;
 587         pSegment->size=0;
 588         pSegment->flags=NE_SEGFLAGS_DATA;
 589         pSegment->minsize=0x1000;
 590         pSegment++;
 591
 592         cts=(DWORD)MODULE_GetWndProcEntry16("Win32CallToStart");
 593 #ifdef WINELIB32
 594         pSegment->selector=(void*)cts;
 595         pModule->ip=0;
 596 #else
 597         pSegment->selector=cts>>16;
 598         pModule->ip=cts & 0xFFFF;
 599 #endif
 600         pSegment++;
 601
 602         pStr=(char*)pSegment;
 603         pModule->name_table=(int)pStr-(int)pModule;
 604         strcpy(pStr,"\x08W32SXXXX");
 605         pStr+=9;
 606
 607         /* All tables zero terminated */
 608         pModule->res_table=pModule->import_table=pModule->entry_table=
 609                 (int)pStr-(int)pModule;
 610
 611         MODULE_RegisterModule( pModule );
 612
 613         pe = PE_LoadImage( fd, hModule, mz_header.ne_offset );
 614
 615         pModule->pe_module = pe;
 616         pModule->heap_size=0x1000;
 617         pModule->stack_size=0xE000;
 618
 619         /* CreateInstance allocates now 64KB */
 620         hInstance=MODULE_CreateInstance(hModule,NULL /* FIX: NULL? really? */);
 621
 622         /* FIXME: Is this really the correct place to initialise the DLL? */
 623         if ((pe->pe_header->coff.Characteristics & IMAGE_FILE_DLL)) {
 624 /*            PE_InitDLL(hModule); */
 625         } else {
 626             TASK_CreateTask(hModule,hInstance,0,
 627                 params->hEnvironment,(LPSTR)PTR_SEG_TO_LIN(params->cmdLine),
 628                 *((WORD*)PTR_SEG_TO_LIN(params->showCmd)+1));
 629             PE_InitializeDLLs(hModule);
 630         }
 631         return hInstance;
 632 }
 633
 634 int USER_InitApp(HINSTANCE hInstance);
 635 void PE_InitTEB(int hTEB);
 636
 637 void PE_Win32CallToStart(struct sigcontext_struct context)
 638 {
 639     int fs;
 640     HMODULE hModule;
 641     NE_MODULE *pModule;
 642
 643     dprintf_win32(stddeb,"Going to start Win32 program\n");
 644     InitTask(context);
 645     hModule = GetExePtr( GetCurrentTask() );
 646     pModule = MODULE_GetPtr( hModule );
 647     USER_InitApp( hModule );
 648     fs=(int)GlobalAlloc16(GHND,0x10000);
 649     PE_InitTEB(fs);
 650     __asm__ __volatile__("movw %w0,%%fs"::"r" (fs));
 651     CallTaskStart32( (FARPROC)(pModule->pe_module->load_addr +
 652                                pModule->pe_module->pe_header->opt_coff.AddressOfEntryPoint) );
 653 }
 654
 655 int PE_UnloadImage( HMODULE hModule )
 656 {
 657         printf("PEunloadImage() called!\n");
 658         /* free resources, image, unmap */
 659         return 1;
 660 }
 661
 662 static void PE_InitDLL(HMODULE hModule)
 663 {
 664     NE_MODULE *pModule;
 665     PE_MODULE *pe;
 666
 667     hModule = GetExePtr(hModule);
 668     if (!(pModule = MODULE_GetPtr(hModule))) return;
 669     if (!(pModule->flags & NE_FFLAGS_WIN32) || !(pe = pModule->pe_module))
 670         return;
 671
 672     /* FIXME: What are the correct values for parameters 2 and 3? */
 673
 674     /* Is this a library? */
 675     if (pe->pe_header->coff.Characteristics & IMAGE_FILE_DLL)
 676     {
 677         printf("InitPEDLL() called!\n");
 678         CallDLLEntryProc32( (FARPROC)(pe->load_addr +
 679                                   pe->pe_header->opt_coff.AddressOfEntryPoint),
 680                             hModule, 0, 0 );
 681     }
 682 }
 683
 684
 685 /* FIXME: This stuff is all on a "well it works" basis. An implementation
 686 based on some kind of documentation would be greatly appreciated :-) */
 687
 688 typedef struct
 689 {
 690     void        *Except;
 691     void        *stack;
 692     int         dummy1[4];
 693     struct TEB  *TEBDSAlias;
 694     int         dummy2[2];
 695     int         taskid;
 696 } TEB;
 697
 698 void PE_InitTEB(int hTEB)
 699 {
 700     TDB *pTask;
 701     TEB *pTEB;
 702
 703     pTask = (TDB *)(GlobalLock16(GetCurrentTask() & 0xffff));
 704     pTEB = (TEB *)(PTR_SEG_OFF_TO_LIN(hTEB, 0));
 705     pTEB->stack = (void *)(GlobalLock16(pTask->hStack32));
 706     pTEB->Except = (void *)(-1);
 707     pTEB->TEBDSAlias = pTEB;
 708     pTEB->taskid = getpid();
 709 }
 710
 711 void PE_InitializeDLLs(HMODULE hModule)
 712 {
 713         NE_MODULE *pModule;
 714         HMODULE *pDLL;
 715         pModule = MODULE_GetPtr( GetExePtr(hModule) );
 716         if (pModule->dlls_to_init)
 717         {
 718                 HANDLE to_init = pModule->dlls_to_init;
 719                 pModule->dlls_to_init = 0;
 720                 for (pDLL = (HMODULE *)GlobalLock16( to_init ); *pDLL; pDLL++)
 721                 {
 722                         PE_InitializeDLLs( *pDLL );
 723                         PE_InitDLL( *pDLL );
 724                 }
 725                 GlobalFree16( to_init );
 726         }
 727         PE_InitDLL( hModule );
 728 }
 729 #endif /* WINELIB */