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 "dlls.h"
  22 #include "neexe.h"
  23 #include "peexe.h"
  24 #include "pe_image.h"
  25 #include "relay32.h"
  26 #include "module.h"
  27 #include "alias.h"
  28 #include "global.h"
  29 #include "task.h"
  30 #include "ldt.h"
  31 #include "registers.h"
  32 #include "stddebug.h"
  33 #include "debug.h"
  34 #include "xmalloc.h"
  35
  36 struct w_files *wine_files = NULL;
  37
  38 void my_wcstombs(char * result, u_short * source, int len)
  39 {
  40   while(len--) {
  41     /* this used to be isascii, but see isascii implementation in Linux'
  42            ctype.h */
  43     if(*source<255) *result++ = *source++;
  44     else {
  45       printf("Unable to handle unicode right now\n");
  46       exit(0);
  47     }
  48   };
  49 }
  50
  51 #if 0
  52 char * xmmap(char * vaddr, unsigned int v_size, unsigned int r_size,
  53         int prot, int flags, int fd, unsigned int file_offset)
  54 {
  55   char * result;
  56   /* .bss has no associated storage in the PE file */
  57   if(r_size)
  58     v_size=r_size;
  59   else
  60 #ifdef __svr4__
  61     fprintf(stderr,"xmmap: %s line %d doesn't support MAP_ANON\n",__FILE__, __LINE__);
  62 #else
  63     flags |= MAP_ANON;
  64 #endif
  65   result = mmap(vaddr, v_size, prot, flags, fd, file_offset);
  66   if((unsigned int) result != 0xffffffff) return result;
  67
  68   /* Sigh.  Alignment must be wrong for mmap.  Do this the hard way. */
  69   if(!(flags & MAP_FIXED)) {
  70     vaddr = (char *)0x40000000;
  71     flags |= MAP_FIXED;
  72   };
  73
  74   mmap(vaddr, v_size, prot, MAP_ANONYMOUS | flags, 0, 0);
  75   lseek(fd, file_offset, SEEK_SET);
  76   read(fd, vaddr, v_size);
  77   return vaddr;
  78 };
  79 #endif
  80
  81 void dump_exports(struct PE_Export_Directory * pe_exports, unsigned int load_addr)
  82 {
  83   char * Module;
  84   int i;
  85   u_short * ordinal;
  86   u_long * function;
  87   u_char ** name, *ename;
  88
  89   Module = ((char *) load_addr) + pe_exports->Name;
  90   dprintf_win32(stddeb,"\n*******EXPORT DATA*******\nModule name is %s, %ld functions, %ld names\n",
  91          Module,
  92          pe_exports->Number_Of_Functions,
  93          pe_exports->Number_Of_Names);
  94
  95   ordinal = (u_short *) (((char *) load_addr) + (int) pe_exports->Address_Of_Name_Ordinals);
  96   function = (u_long *)  (((char *) load_addr) + (int) pe_exports->AddressOfFunctions);
  97   name = (u_char **)  (((char *) load_addr) + (int) pe_exports->AddressOfNames);
  98
  99   dprintf_win32(stddeb,"%-32s Ordinal Virt Addr\n", "Function Name");
 100   for(i=0; i< pe_exports->Number_Of_Functions; i++)
 101     {
 102       ename =  (char *) (((char *) load_addr) + (int) *name++);
 103       dprintf_win32(stddeb,"%-32s %4d    %8.8lx\n", ename, *ordinal++, *function++);
 104     }
 105 }
 106
 107 DWORD PE_FindExportedFunction(struct w_files* wpnt, char* funcName)
 108 {
 109         struct PE_Export_Directory * exports = wpnt->pe->pe_export;
 110         unsigned load_addr = wpnt->pe->load_addr;
 111         u_short * ordinal;
 112         u_long * function;
 113         u_char ** name, *ename;
 114         int i;
 115         if(!exports)return 0;
 116         ordinal = (u_short *) (((char *) load_addr) + (int) exports->Address_Of_Name_Ordinals);
 117         function = (u_long *)  (((char *) load_addr) + (int) exports->AddressOfFunctions);
 118         name = (u_char **)  (((char *) load_addr) + (int) exports->AddressOfNames);
 119         for(i=0; i<exports->Number_Of_Functions; i++)
 120         {
 121                 if(HIWORD(funcName))
 122                 {
 123                         ename =  (char *) (((char *) load_addr) + (int) *name);
 124                         if(strcmp(ename,funcName)==0)
 125                                 return load_addr+*function;
 126                 }else{
 127                         if(funcName == (int)*ordinal + exports->Base)
 128                                 return load_addr+*function;
 129                 }
 130                 function++;
 131                 ordinal++;
 132                 name++;
 133         }
 134         return 0;
 135 }
 136
 137 DWORD PE_GetProcAddress(HMODULE hModule, char* function)
 138 {
 139         struct w_files *wpnt;
 140         for(wpnt=wine_files;wpnt;wpnt=wpnt->next)
 141                 if(wpnt->hModule==hModule) break;
 142         if(!wpnt)return 0;
 143         if(wpnt->builtin)
 144         {
 145                 if(HIWORD(function))
 146                         return RELAY32_GetEntryPoint(wpnt->builtin,function,0);
 147                 else
 148                         return RELAY32_GetEntryPoint(wpnt->builtin,0,(int)function);
 149         }
 150         return PE_FindExportedFunction(wpnt,function);
 151 }
 152
 153 void fixup_imports(struct w_files* wpnt)
 154 {
 155   struct PE_Import_Directory * pe_imp;
 156   int fixup_failed=0;
 157   unsigned int load_addr = wpnt->pe->load_addr;
 158   int i;
 159   NE_MODULE *ne_mod;
 160   HMODULE *mod_ptr;
 161
 162  /* OK, now dump the import list */
 163   dprintf_win32(stddeb, "\nDumping imports list\n");
 164
 165   /* first, count the number of imported non-internal modules */
 166   pe_imp = wpnt->pe->pe_import;
 167   for(i=0;pe_imp->ModuleName;pe_imp++)
 168         i++;
 169
 170   /* Now, allocate memory for dlls_to_init */
 171   ne_mod = GlobalLock(wpnt->hModule);
 172   ne_mod->dlls_to_init = GLOBAL_Alloc(GMEM_ZEROINIT,(i+1) * sizeof(HMODULE),
 173                                         wpnt->hModule, FALSE, FALSE, FALSE );
 174   mod_ptr = GlobalLock(ne_mod->dlls_to_init);
 175   /* load the modules and put their handles into the list */
 176   for(i=0,pe_imp = wpnt->pe->pe_import;pe_imp->ModuleName;pe_imp++)
 177   {
 178         char *name = (char*)load_addr+pe_imp->ModuleName;
 179         if(RELAY32_GetBuiltinDLL(name))
 180                 continue;
 181         mod_ptr[i] = LoadModule(name,(LPVOID)-1);
 182         if(mod_ptr[i]<=(HMODULE)32)
 183         {
 184                 fprintf(stderr,"Module %s not found\n",name);
 185                 exit(0);
 186         }
 187         i++;
 188   }
 189   pe_imp = wpnt->pe->pe_import;
 190   while (pe_imp->ModuleName)
 191     {
 192       char * Module;
 193       struct pe_import_name * pe_name;
 194       unsigned int * import_list, *thunk_list;
 195
 196       Module = ((char *) load_addr) + pe_imp->ModuleName;
 197       dprintf_win32(stddeb, "%s\n", Module);
 198
 199    if(pe_imp->Import_List != 0) { /* original microsoft style */
 200       dprintf_win32(stddeb, "Microsoft style imports used\n");
 201       import_list = (unsigned int *)
 202         (((unsigned int) load_addr) + pe_imp->Import_List);
 203           thunk_list = (unsigned int *)
 204           (((unsigned int) load_addr) + pe_imp->Thunk_List);
 205
 206
 207     while(*import_list)
 208         {
 209           pe_name = (struct pe_import_name *) ((int) load_addr + ((unsigned)*import_list & ~0x80000000));
 210           if((unsigned)*import_list & 0x80000000)
 211           {
 212                 int ordinal=*import_list & (0x80000000-1);
 213                 dprintf_win32(stddeb,"--- Ordinal %s,%d\n", Module, ordinal);
 214                 *thunk_list = WIN32_GetProcAddress(MODULE_FindModule(Module),
 215                         ordinal);
 216           }else{ /* import by name */
 217           dprintf_win32(stddeb, "--- %s %s.%d\n", pe_name->Name, Module, pe_name->Hint);
 218 #ifndef WINELIB /* FIXME: JBP: Should this happen in libwine.a? */
 219                 *thunk_list = WIN32_GetProcAddress(MODULE_FindModule(Module),
 220                                 pe_name->Name);
 221
 222 #else
 223           fprintf(stderr,"JBP: Call to RELAY32_GetEntryPoint being ignored.\n");
 224 #endif
 225                 }
 226           if(!*thunk_list)
 227           {
 228                 fprintf(stderr,"No implementation for %s.%d(%s)\n",Module,
 229                         pe_name->Hint, pe_name->Name);
 230                 fixup_failed=1;
 231           }
 232
 233           import_list++;
 234           thunk_list++;
 235         }
 236     } else { /* Borland style */
 237       dprintf_win32(stddeb, "Borland style imports used\n");
 238       thunk_list = (unsigned int *)
 239         (((unsigned int) load_addr) + pe_imp->Thunk_List);
 240       while(*thunk_list) {
 241         pe_name = (struct pe_import_name *) ((int) load_addr + *thunk_list);
 242         if((unsigned)pe_name & 0x80000000) {
 243           fprintf(stderr,"Import by ordinal not supported\n");
 244           exit(0);
 245         }
 246         dprintf_win32(stddeb, "--- %s %s.%d\n", pe_name->Name, Module, pe_name->Hint);
 247 #ifndef WINELIB /* FIXME: JBP: Should this happen in libwine.a? */
 248         /* FIXME: Both calls should be unified into GetProcAddress */
 249 #if 0
 250         *thunk_list=(unsigned int)RELAY32_GetEntryPoint(Module,pe_name->Name,pe_name->Hint);
 251         if(*thunk_list == 0)
 252 #endif
 253                 *thunk_list = WIN32_GetProcAddress(MODULE_FindModule(Module),
 254                                 pe_name->Name);
 255 #else
 256         fprintf(stderr,"JBP: Call to RELAY32_GetEntryPoint being ignored.\n");
 257 #endif
 258         if(!*thunk_list) {
 259           fprintf(stderr,"No implementation for %s.%d\n",Module, pe_name->Hint);
 260           fixup_failed=1;
 261         }
 262         thunk_list++;
 263       }
 264     }
 265     pe_imp++;
 266   }
 267   if(fixup_failed)exit(1);
 268 }
 269
 270 static void calc_vma_size(struct w_files *wpnt)
 271 {
 272   int i;
 273
 274   dprintf_win32(stddeb, "Dump of segment table\n");
 275   dprintf_win32(stddeb, "   Name    VSz  Vaddr     SzRaw   Fileadr  *Reloc *Lineum #Reloc #Linum Char\n");
 276   for(i=0; i< wpnt->pe->pe_header->coff.NumberOfSections; i++)
 277     {
 278       dprintf_win32(stddeb, "%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
 279              wpnt->pe->pe_seg[i].Name,
 280              wpnt->pe->pe_seg[i].Virtual_Size,
 281              wpnt->pe->pe_seg[i].Virtual_Address,
 282              wpnt->pe->pe_seg[i].Size_Of_Raw_Data,
 283              wpnt->pe->pe_seg[i].PointerToRawData,
 284              wpnt->pe->pe_seg[i].PointerToRelocations,
 285              wpnt->pe->pe_seg[i].PointerToLinenumbers,
 286              wpnt->pe->pe_seg[i].NumberOfRelocations,
 287              wpnt->pe->pe_seg[i].NumberOfLinenumbers,
 288              wpnt->pe->pe_seg[i].Characteristics);
 289           wpnt->pe->vma_size = max(wpnt->pe->vma_size,
 290                         wpnt->pe->pe_seg[i].Virtual_Address +
 291                         wpnt->pe->pe_seg[i].Size_Of_Raw_Data);
 292     }
 293 }
 294
 295 static void do_relocations(struct w_files *wpnt)
 296 {
 297         int delta = wpnt->pe->load_addr - wpnt->pe->base_addr;
 298         struct PE_Reloc_Block *r = wpnt->pe->pe_reloc;
 299         int hdelta = (delta >> 16) & 0xFFFF;
 300         int ldelta = delta & 0xFFFF;
 301         /* int reloc_size = */
 302         if(delta == 0)
 303                 /* Nothing to do */
 304                 return;
 305         while(r->PageRVA)
 306         {
 307                 char *page = (char*)wpnt->pe->load_addr + r->PageRVA;
 308                 int count = (r->BlockSize - 8)/2;
 309                 int i;
 310                 dprintf_fixup(stddeb, "%x relocations for page %lx\n",
 311                         count, r->PageRVA);
 312                 /* patching in reverse order */
 313                 for(i=0;i<count;i++)
 314                 {
 315                         int offset = r->Relocations[i] & 0xFFF;
 316                         int type = r->Relocations[i] >> 12;
 317                         dprintf_fixup(stddeb,"patching %x type %x\n", offset, type);
 318                         switch(type)
 319                         {
 320                         case IMAGE_REL_BASED_ABSOLUTE: break;
 321                         case IMAGE_REL_BASED_HIGH:
 322                                 *(short*)(page+offset) += hdelta;
 323                                 break;
 324                         case IMAGE_REL_BASED_LOW:
 325                                 *(short*)(page+offset) += ldelta;
 326                                 break;
 327                         case IMAGE_REL_BASED_HIGHLOW:
 328 #if 1
 329                                 *(int*)(page+offset) += delta;
 330 #else
 331                                 { int h=*(unsigned short*)(page+offset);
 332                                   int l=r->Relocations[++i];
 333                                   *(unsigned int*)(page + offset) = (h<<16) + l + delta;
 334                                 }
 335 #endif
 336                                 break;
 337                         case IMAGE_REL_BASED_HIGHADJ:
 338                                 fprintf(stderr, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
 339                                 break;
 340                         case IMAGE_REL_BASED_MIPS_JMPADDR:
 341                                 fprintf(stderr, "Is this a MIPS machine ???\n");
 342                                 break;
 343                         default:
 344                                 fprintf(stderr, "Unknown fixup type\n");
 345                                 break;
 346                         }
 347                 }
 348                 r = (struct PE_Reloc_Block*)((char*)r + r->BlockSize);
 349         }
 350 }
 351
 352
 353
 354
 355
 356 /**********************************************************************
 357  *                      PE_LoadImage
 358  * Load one PE format executable into memory
 359  */
 360 static HINSTANCE PE_LoadImage( int fd, struct w_files *wpnt )
 361 {
 362         int i, result;
 363     unsigned int load_addr;
 364         struct Directory dir;
 365
 366         wpnt->pe = xmalloc(sizeof(struct pe_data));
 367         memset(wpnt->pe,0,sizeof(struct pe_data));
 368         wpnt->pe->pe_header = xmalloc(sizeof(struct pe_header_s));
 369
 370         /* read PE header */
 371         lseek( fd, wpnt->mz_header->ne_offset, SEEK_SET);
 372         read( fd, wpnt->pe->pe_header, sizeof(struct pe_header_s));
 373
 374         /* read sections */
 375         wpnt->pe->pe_seg = xmalloc(sizeof(struct pe_segment_table) *
 376                                    wpnt->pe->pe_header->coff.NumberOfSections);
 377         read( fd, wpnt->pe->pe_seg, sizeof(struct pe_segment_table) *
 378                         wpnt->pe->pe_header->coff.NumberOfSections);
 379
 380         load_addr = wpnt->pe->pe_header->opt_coff.BaseOfImage;
 381         wpnt->pe->base_addr=load_addr;
 382         wpnt->pe->vma_size=0;
 383         dprintf_win32(stddeb, "Load addr is %x\n",load_addr);
 384         calc_vma_size(wpnt);
 385
 386         /* We use malloc here, while a huge part of that address space does
 387            not be supported by actual memory. It has to be contiguous, though.
 388            I don't know if mmap("/dev/null"); would do any better.
 389            What I'd really like to do is a Win32 style VirtualAlloc/MapViewOfFile
 390            sequence */
 391         load_addr = wpnt->pe->load_addr = malloc(wpnt->pe->vma_size);
 392         dprintf_win32(stddeb, "Load addr is really %x, range %x\n",
 393                 wpnt->pe->load_addr, wpnt->pe->vma_size);
 394
 395
 396         for(i=0; i < wpnt->pe->pe_header->coff.NumberOfSections; i++)
 397         {
 398                 /* load only non-BSS segments */
 399                 if(wpnt->pe->pe_seg[i].Characteristics &
 400                         ~ IMAGE_SCN_TYPE_CNT_UNINITIALIZED_DATA)
 401                 if(lseek(fd,wpnt->pe->pe_seg[i].PointerToRawData,SEEK_SET) == -1
 402                 || read(fd,load_addr + wpnt->pe->pe_seg[i].Virtual_Address,
 403                                 wpnt->pe->pe_seg[i].Size_Of_Raw_Data)
 404                                 != wpnt->pe->pe_seg[i].Size_Of_Raw_Data)
 405                 {
 406                         fprintf(stderr,"Failed to load section %x\n", i);
 407                         exit(0);
 408                 }
 409                 result = load_addr + wpnt->pe->pe_seg[i].Virtual_Address;
 410 #if 0
 411         if(!load_addr) {
 412
 413                 result = (int)xmmap((char *)0, wpnt->pe->pe_seg[i].Virtual_Size,
 414                         wpnt->pe->pe_seg[i].Size_Of_Raw_Data, 7,
 415                         MAP_PRIVATE, fd, wpnt->pe->pe_seg[i].PointerToRawData);
 416                 load_addr = (unsigned int) result -  wpnt->pe->pe_seg[i].Virtual_Address;
 417         } else {
 418                 result = (int)xmmap((char *) load_addr + wpnt->pe->pe_seg[i].Virtual_Address,
 419                           wpnt->pe->pe_seg[i].Virtual_Size,
 420                       wpnt->pe->pe_seg[i].Size_Of_Raw_Data, 7, MAP_PRIVATE | MAP_FIXED,
 421                       fd, wpnt->pe->pe_seg[i].PointerToRawData);
 422         }
 423         if(result==-1){
 424                 fprintf(stderr,"Could not load section %x to desired address %lx\n",
 425                         i, load_addr+wpnt->pe->pe_seg[i].Virtual_Address);
 426                 fprintf(stderr,"Need to implement relocations now\n");
 427                 exit(0);
 428         }
 429 #endif
 430
 431         if(strcmp(wpnt->pe->pe_seg[i].Name, ".bss") == 0)
 432             memset((void *)result, 0,
 433                    wpnt->pe->pe_seg[i].Virtual_Size ?
 434                    wpnt->pe->pe_seg[i].Virtual_Size :
 435                    wpnt->pe->pe_seg[i].Size_Of_Raw_Data);
 436
 437         if(strcmp(wpnt->pe->pe_seg[i].Name, ".idata") == 0)
 438                 wpnt->pe->pe_import = (struct PE_Import_Directory *) result;
 439
 440         if(strcmp(wpnt->pe->pe_seg[i].Name, ".edata") == 0)
 441                 wpnt->pe->pe_export = (struct PE_Export_Directory *) result;
 442
 443         if(strcmp(wpnt->pe->pe_seg[i].Name, ".rsrc") == 0) {
 444             wpnt->pe->pe_resource = (struct PE_Resource_Directory *) result;
 445 #if 0
 446 /* FIXME pe->resource_offset should be deleted from structure if this
 447  ifdef doesn't break anything */
 448             /* save offset for PE_FindResource */
 449             wpnt->pe->resource_offset = wpnt->pe->pe_seg[i].Virtual_Address -
 450                                         wpnt->pe->pe_seg[i].PointerToRawData;
 451 #endif
 452             }
 453         if(strcmp(wpnt->pe->pe_seg[i].Name, ".reloc") == 0)
 454                 wpnt->pe->pe_reloc = (struct PE_Reloc_Block *) result;
 455
 456         }
 457
 458         /* There is word that the actual loader does not care about the
 459            section names, and only goes for the DataDirectory */
 460         dir=wpnt->pe->pe_header->opt_coff.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
 461         if(dir.Size)
 462         {
 463                 if(wpnt->pe->pe_export &&
 464                         wpnt->pe->pe_export!=load_addr+dir.Virtual_address)
 465                         fprintf(stderr,"wrong export directory??\n");
 466                 /* always trust the directory */
 467                 wpnt->pe->pe_export = load_addr+dir.Virtual_address;
 468         }
 469
 470         dir=wpnt->pe->pe_header->opt_coff.DataDirectory[IMAGE_FILE_IMPORT_DIRECTORY];
 471         if(dir.Size)
 472         {
 473                 if(wpnt->pe->pe_import &&
 474                         wpnt->pe->pe_import!=load_addr+dir.Virtual_address)
 475                         fprintf(stderr,"wrong import directory??\n");
 476                 wpnt->pe->pe_import = load_addr+dir.Virtual_address;
 477         }
 478
 479         dir=wpnt->pe->pe_header->opt_coff.DataDirectory[IMAGE_FILE_RESOURCE_DIRECTORY];
 480         if(dir.Size)
 481         {
 482                 if(wpnt->pe->pe_resource &&
 483                         wpnt->pe->pe_resource!=load_addr+dir.Virtual_address)
 484                         fprintf(stderr,"wrong resource directory??\n");
 485                 wpnt->pe->pe_resource = load_addr+dir.Virtual_address;
 486         }
 487
 488         dir=wpnt->pe->pe_header->opt_coff.DataDirectory[IMAGE_FILE_BASE_RELOCATION_TABLE];
 489         if(dir.Size)
 490         {
 491                 if(wpnt->pe->pe_reloc &&
 492                         wpnt->pe->pe_reloc!=load_addr+dir.Virtual_address)
 493                         fprintf(stderr,"wrong relocation list??\n");
 494                 wpnt->pe->pe_reloc = load_addr+dir.Virtual_address;
 495         }
 496
 497         if(wpnt->pe->pe_header->opt_coff.DataDirectory
 498                 [IMAGE_FILE_EXCEPTION_DIRECTORY].Size)
 499                 dprintf_win32(stdnimp,"Exception directory ignored\n");
 500
 501         if(wpnt->pe->pe_header->opt_coff.DataDirectory
 502                 [IMAGE_FILE_SECURITY_DIRECTORY].Size)
 503                 dprintf_win32(stdnimp,"Security directory ignored\n");
 504
 505         if(wpnt->pe->pe_header->opt_coff.DataDirectory
 506                 [IMAGE_FILE_DEBUG_DIRECTORY].Size)
 507                 dprintf_win32(stdnimp,"Debug directory ignored\n");
 508
 509         if(wpnt->pe->pe_header->opt_coff.DataDirectory
 510                 [IMAGE_FILE_DESCRIPTION_STRING].Size)
 511                 dprintf_win32(stdnimp,"Description string ignored\n");
 512
 513         if(wpnt->pe->pe_header->opt_coff.DataDirectory
 514                 [IMAGE_FILE_MACHINE_VALUE].Size)
 515                 dprintf_win32(stdnimp,"Machine Value ignored\n");
 516
 517         if(wpnt->pe->pe_header->opt_coff.DataDirectory
 518                 [IMAGE_FILE_THREAD_LOCAL_STORAGE].Size)
 519                  dprintf_win32(stdnimp,"Thread local storage ignored\n");
 520
 521         if(wpnt->pe->pe_header->opt_coff.DataDirectory
 522                 [IMAGE_FILE_CALLBACK_DIRECTORY].Size)
 523                 dprintf_win32(stdnimp,"Callback directory ignored\n");
 524
 525
 526         if(wpnt->pe->pe_import) fixup_imports(wpnt);
 527         if(wpnt->pe->pe_export) dump_exports(wpnt->pe->pe_export,load_addr);
 528         if(wpnt->pe->pe_reloc) do_relocations(wpnt);
 529
 530         wpnt->hinstance = (HINSTANCE)0x8000;
 531         wpnt->load_addr = load_addr;
 532         return (wpnt->hinstance);
 533 }
 534
 535 HINSTANCE MODULE_CreateInstance(HMODULE hModule,LOADPARAMS *params);
 536 void InitTask(struct sigcontext_struct context);
 537
 538 HINSTANCE PE_LoadModule( int fd, OFSTRUCT *ofs, LOADPARAMS* params )
 539 {
 540         struct w_files *wpnt;
 541         int size, of_size;
 542         NE_MODULE *pModule;
 543         SEGTABLEENTRY *pSegment;
 544         char *pStr;
 545         DWORD cts;
 546         HMODULE hModule;
 547         HINSTANCE hInstance;
 548
 549         ALIAS_UseAliases=1;
 550
 551         wpnt=xmalloc(sizeof(struct w_files));
 552         wpnt->ofs=*ofs;
 553         wpnt->type=0;
 554         wpnt->hinstance=0;
 555         wpnt->hModule=0;
 556         wpnt->initialised=0;
 557         wpnt->builtin=0;
 558         lseek(fd,0,SEEK_SET);
 559         wpnt->mz_header=xmalloc(sizeof(struct mz_header_s));
 560         read(fd,wpnt->mz_header,sizeof(struct mz_header_s));
 561
 562         of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
 563                   + strlen(ofs->szPathName) + 1;
 564         size = sizeof(NE_MODULE) +
 565                /* loaded file info */
 566                of_size +
 567                /* segment table: DS,CS */
 568                2 * sizeof(SEGTABLEENTRY) +
 569                /* name table */
 570                9 +
 571                /* several empty tables */
 572                8;
 573
 574         hModule = GlobalAlloc( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
 575         wpnt->hModule=hModule;
 576         if (!hModule) return (HINSTANCE)11;  /* invalid exe */
 577
 578         FarSetOwner( hModule, hModule );
 579
 580         pModule = (NE_MODULE*)GlobalLock(hModule);
 581
 582         /* Set all used entries */
 583         pModule->magic=NE_SIGNATURE;
 584         pModule->count=1;
 585         pModule->next=0;
 586         pModule->flags=NE_FFLAGS_WIN32;
 587         pModule->dgroup=1;
 588         pModule->ss=1;
 589         pModule->cs=2;
 590         /* Who wants to LocalAlloc for a PE Module? */
 591         pModule->heap_size=0x1000;
 592         pModule->stack_size=0xF000;
 593         pModule->seg_count=1;
 594         pModule->modref_count=0;
 595         pModule->nrname_size=0;
 596         pModule->seg_table=sizeof(NE_MODULE) + of_size;
 597         pModule->fileinfo=sizeof(NE_MODULE);
 598         pModule->os_flags=NE_OSFLAGS_WINDOWS;
 599         pModule->expected_version=0x30A;
 600
 601         /* Set loaded file information */
 602         memcpy( pModule + 1, ofs, of_size );
 603         ((OFSTRUCT *)(pModule+1))->cBytes = of_size - 1;
 604
 605         pSegment=(SEGTABLEENTRY*)((char*)(pModule + 1) + of_size);
 606         pModule->dgroup_entry=(int)pSegment-(int)pModule;
 607         pSegment->size=0;
 608         pSegment->flags=NE_SEGFLAGS_DATA;
 609         pSegment->minsize=0x1000;
 610         pSegment++;
 611
 612         cts=(DWORD)MODULE_GetWndProcEntry16("Win32CallToStart");
 613 #ifdef WINELIB32
 614         pSegment->selector=(void*)cts;
 615         pModule->ip=0;
 616 #else
 617         pSegment->selector=cts>>16;
 618         pModule->ip=cts & 0xFFFF;
 619 #endif
 620         pSegment++;
 621
 622         pStr=(char*)pSegment;
 623         pModule->name_table=(int)pStr-(int)pModule;
 624         strcpy(pStr,"\x08W32SXXXX");
 625         pStr+=9;
 626
 627         /* All tables zero terminated */
 628         pModule->res_table=pModule->import_table=pModule->entry_table=
 629                 (int)pStr-(int)pModule;
 630
 631         MODULE_RegisterModule(hModule);
 632
 633         PE_LoadImage( fd, wpnt );
 634
 635         pModule->heap_size=0x1000;
 636         pModule->stack_size=0xE000;
 637
 638         /* CreateInstance allocates now 64KB */
 639         hInstance=MODULE_CreateInstance(hModule,NULL /* FIX: NULL? really? */);
 640         wpnt->hinstance=hInstance;
 641
 642         if (wpnt->pe->pe_export) {
 643                 pStr = ((unsigned char *)(wpnt->load_addr))+wpnt->pe->pe_export->Name;
 644                 wpnt->name = xstrdup(pStr);
 645         } else {
 646                 wpnt->name = xstrdup( ofs->szPathName );
 647         }
 648
 649         wpnt->next=wine_files;
 650         wine_files=wpnt;
 651
 652         /* FIXME: Is this really the correct place to initialise the DLL? */
 653         if ((wpnt->pe->pe_header->coff.Characteristics & IMAGE_FILE_DLL)) {
 654             PE_InitDLL(hModule);
 655         } else {
 656             TASK_CreateTask(hModule,hInstance,0,
 657                 params->hEnvironment,(LPSTR)PTR_SEG_TO_LIN(params->cmdLine),
 658                 *((WORD*)PTR_SEG_TO_LIN(params->showCmd)+1));
 659         }
 660         return hInstance;
 661 }
 662
 663 int USER_InitApp(HINSTANCE hInstance);
 664 void PE_InitTEB(int hTEB);
 665
 666 void PE_Win32CallToStart(struct sigcontext_struct context)
 667 {
 668         int fs;
 669         struct w_files *wpnt=wine_files;
 670         dprintf_win32(stddeb,"Going to start Win32 program\n");
 671         InitTask(context);
 672         USER_InitApp(wpnt->hModule);
 673         fs=(int)GlobalAlloc(GHND,0x10000);
 674         PE_InitTEB(fs);
 675         __asm__ __volatile__("movw %w0,%%fs"::"r" (fs));
 676         ((void(*)())(wpnt->load_addr+wpnt->pe->pe_header->opt_coff.AddressOfEntryPoint))();
 677 }
 678
 679 int PE_UnloadImage(struct w_files *wpnt)
 680 {
 681         printf("PEunloadImage() called!\n");
 682         /* free resources, image, unmap */
 683         return 1;
 684 }
 685
 686 void PE_InitDLL(HMODULE hModule)
 687 {
 688         struct w_files *wpnt;
 689         hModule = GetExePtr(hModule);
 690         for(wpnt = wine_files;wpnt && wpnt->hModule != hModule;
 691                 wpnt = wpnt->next) /*nothing*/;
 692         if(!wpnt || wpnt->initialised)
 693                 return;
 694         /* FIXME: What are the correct values for parameters 2 and 3? */
 695
 696         /* Is this a library? */
 697         if (wpnt->pe->pe_header->coff.Characteristics & IMAGE_FILE_DLL) {
 698                 /* Should call DLLEntryPoint here */
 699                 printf("InitPEDLL() called!\n");
 700                 wpnt->initialised = 1;
 701                 ((void(*)())(wpnt->load_addr+wpnt->pe->pe_header->opt_coff.AddressOfEntryPoint))(wpnt->hModule, 0, 0);
 702         }
 703 }
 704
 705
 706 /* FIXME: This stuff is all on a "well it works" basis. An implementation
 707 based on some kind of documentation would be greatly appreciated :-) */
 708
 709 typedef struct
 710 {
 711     void        *Except;
 712     void        *stack;
 713     int         dummy1[4];
 714     struct TEB  *TEBDSAlias;
 715     int         dummy2[2];
 716     int         taskid;
 717 } TEB;
 718
 719 void PE_InitTEB(int hTEB)
 720 {
 721     TDB *pTask;
 722     TEB *pTEB;
 723
 724     pTask = (TDB *)(GlobalLock(GetCurrentTask() & 0xffff));
 725     pTEB = (TEB *)(PTR_SEG_OFF_TO_LIN(hTEB, 0));
 726     pTEB->stack = (void *)(GlobalLock(pTask->hStack32));
 727     pTEB->Except = (void *)(-1);
 728     pTEB->TEBDSAlias = pTEB;
 729     pTEB->taskid = getpid();
 730 }
 731
 732 void PE_InitializeDLLs(HMODULE hModule)
 733 {
 734         NE_MODULE *pModule;
 735         HMODULE *pDLL;
 736         pModule = (NE_MODULE *)GlobalLock( GetExePtr(hModule) );
 737         if (pModule->dlls_to_init)
 738         {
 739                 HANDLE to_init = pModule->dlls_to_init;
 740                 pModule->dlls_to_init = 0;
 741                 for (pDLL = (HMODULE *)GlobalLock( to_init ); *pDLL; pDLL++)
 742                 {
 743                         PE_InitializeDLLs( *pDLL );
 744                         PE_InitDLL( *pDLL );
 745                 }
 746                 GlobalFree( to_init );
 747         }
 748         PE_InitDLL( hModule );
 749 }
 750 #endif /* WINELIB */