relay32/builtin32.c

   1 /*
   2  * Win32 builtin functions
   3  *
   4  * Copyright 1997 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <string.h>
   9 #include <ctype.h>
  10 #include "winuser.h"
  11 #include "builtin32.h"
  12 #include "peexe.h"
  13 #include "neexe.h"
  14 #include "heap.h"
  15 #include "main.h"
  16 #include "snoop.h"
  17 #include "winerror.h"
  18 #include "debugtools.h"
  19
  20 DECLARE_DEBUG_CHANNEL(relay)
  21 DECLARE_DEBUG_CHANNEL(win32)
  22 DECLARE_DEBUG_CHANNEL(module)
  23
  24 typedef struct
  25 {
  26     BYTE  call;                    /* 0xe8 call callfrom32 (relative) */
  27     DWORD callfrom32 WINE_PACKED;  /* RELAY_CallFrom32 relative addr */
  28     BYTE  ret;                     /* 0xc2 ret $n  or  0xc3 ret */
  29     WORD  args;                    /* nb of args to remove from the stack */
  30 } DEBUG_ENTRY_POINT;
  31
  32 typedef struct
  33 {
  34         const BYTE                      *restab;
  35         const DWORD                     nresources;
  36         const DWORD                     restabsize;
  37         const IMAGE_RESOURCE_DATA_ENTRY *entries;
  38 } BUILTIN32_RESOURCE;
  39
  40 typedef struct
  41 {
  42         const BUILTIN32_DESCRIPTOR      *descr; /* DLL descriptor */
  43         DWORD                           flags;
  44         const BUILTIN32_RESOURCE        *rsc;
  45 } BUILTIN32_DLL;
  46
  47 #define BI32_INSTANTIATED       0x01
  48
  49 extern const BUILTIN32_DESCRIPTOR ADVAPI32_Descriptor;
  50 extern const BUILTIN32_DESCRIPTOR AVIFIL32_Descriptor;
  51 extern const BUILTIN32_DESCRIPTOR COMCTL32_Descriptor;
  52 extern const BUILTIN32_DESCRIPTOR COMDLG32_Descriptor;
  53 extern const BUILTIN32_DESCRIPTOR CRTDLL_Descriptor;
  54 extern const BUILTIN32_DESCRIPTOR DCIMAN32_Descriptor;
  55 extern const BUILTIN32_DESCRIPTOR DDRAW_Descriptor;
  56 extern const BUILTIN32_DESCRIPTOR DINPUT_Descriptor;
  57 extern const BUILTIN32_DESCRIPTOR DPLAY_Descriptor;
  58 extern const BUILTIN32_DESCRIPTOR DPLAYX_Descriptor;
  59 extern const BUILTIN32_DESCRIPTOR DSOUND_Descriptor;
  60 extern const BUILTIN32_DESCRIPTOR GDI32_Descriptor;
  61 extern const BUILTIN32_DESCRIPTOR IMAGEHLP_Descriptor;
  62 extern const BUILTIN32_DESCRIPTOR IMM32_Descriptor;
  63 extern const BUILTIN32_DESCRIPTOR KERNEL32_Descriptor;
  64 extern const BUILTIN32_DESCRIPTOR LZ32_Descriptor;
  65 extern const BUILTIN32_DESCRIPTOR MPR_Descriptor;
  66 extern const BUILTIN32_DESCRIPTOR MCIAVI_Descriptor;
  67 extern const BUILTIN32_DESCRIPTOR MCIANIM_Descriptor;
  68 extern const BUILTIN32_DESCRIPTOR MCICDA_Descriptor;
  69 extern const BUILTIN32_DESCRIPTOR MCISEQ_Descriptor;
  70 extern const BUILTIN32_DESCRIPTOR MCIWAVE_Descriptor;
  71 extern const BUILTIN32_DESCRIPTOR MSACM32_Descriptor;
  72 extern const BUILTIN32_DESCRIPTOR MSNET32_Descriptor;
  73 extern const BUILTIN32_DESCRIPTOR MSVFW32_Descriptor;
  74 extern const BUILTIN32_DESCRIPTOR NTDLL_Descriptor;
  75 extern const BUILTIN32_DESCRIPTOR OLE32_Descriptor;
  76 extern const BUILTIN32_DESCRIPTOR OLEAUT32_Descriptor;
  77 extern const BUILTIN32_DESCRIPTOR OLECLI32_Descriptor;
  78 extern const BUILTIN32_DESCRIPTOR OLEDLG_Descriptor;
  79 extern const BUILTIN32_DESCRIPTOR OLESVR32_Descriptor;
  80 extern const BUILTIN32_DESCRIPTOR PSAPI_Descriptor;
  81 extern const BUILTIN32_DESCRIPTOR RASAPI32_Descriptor;
  82 extern const BUILTIN32_DESCRIPTOR SHELL32_Descriptor;
  83 extern const BUILTIN32_DESCRIPTOR TAPI32_Descriptor;
  84 extern const BUILTIN32_DESCRIPTOR USER32_Descriptor;
  85 extern const BUILTIN32_DESCRIPTOR VERSION_Descriptor;
  86 extern const BUILTIN32_DESCRIPTOR W32SKRNL_Descriptor;
  87 extern const BUILTIN32_DESCRIPTOR WINMM_Descriptor;
  88 extern const BUILTIN32_DESCRIPTOR WINSPOOL_Descriptor;
  89 extern const BUILTIN32_DESCRIPTOR WNASPI32_Descriptor;
  90 extern const BUILTIN32_DESCRIPTOR WOW32_Descriptor;
  91 extern const BUILTIN32_DESCRIPTOR WSOCK32_Descriptor;
  92
  93 extern const BUILTIN32_RESOURCE comctl32_ResourceDescriptor;
  94 extern const BUILTIN32_RESOURCE comdlg32_ResourceDescriptor;
  95 extern const BUILTIN32_RESOURCE shell32_ResourceDescriptor;
  96 extern const BUILTIN32_RESOURCE user32_ResourceDescriptor;
  97
  98 static BUILTIN32_DLL BuiltinDLLs[] =
  99 {
 100     { &ADVAPI32_Descriptor, 0, NULL },
 101     { &AVIFIL32_Descriptor, 0, NULL },
 102     { &COMCTL32_Descriptor, 0, &comctl32_ResourceDescriptor },
 103     { &COMDLG32_Descriptor, 0, &comdlg32_ResourceDescriptor },
 104     { &CRTDLL_Descriptor,   0, NULL },
 105     { &DCIMAN32_Descriptor, 0, NULL },
 106     { &DDRAW_Descriptor,    0, NULL },
 107     { &DINPUT_Descriptor,   0, NULL },
 108     { &DPLAY_Descriptor,    0, NULL },
 109     { &DPLAYX_Descriptor,   0, NULL },
 110     { &DSOUND_Descriptor,   0, NULL },
 111     { &GDI32_Descriptor,    0, NULL },
 112     { &IMAGEHLP_Descriptor, 0, NULL },
 113     { &IMM32_Descriptor,    0, NULL },
 114     { &KERNEL32_Descriptor, 0, NULL },
 115     { &LZ32_Descriptor,     0, NULL },
 116     { &MCIANIM_Descriptor,  0, NULL },
 117     { &MCIAVI_Descriptor,   0, NULL },
 118     { &MCICDA_Descriptor,   0, NULL },
 119     { &MCISEQ_Descriptor,   0, NULL },
 120     { &MCIWAVE_Descriptor,  0, NULL },
 121     { &MPR_Descriptor,      0, NULL },
 122     { &MSACM32_Descriptor,  0, NULL },
 123     { &MSNET32_Descriptor,  0, NULL },
 124     { &MSVFW32_Descriptor,  0, NULL },
 125     { &NTDLL_Descriptor,    0, NULL },
 126     { &OLE32_Descriptor,    0, NULL },
 127     { &OLEAUT32_Descriptor, 0, NULL },
 128     { &OLECLI32_Descriptor, 0, NULL },
 129     { &OLEDLG_Descriptor,   0, NULL },
 130     { &OLESVR32_Descriptor, 0, NULL },
 131     { &PSAPI_Descriptor,    0, NULL },
 132     { &RASAPI32_Descriptor, 0, NULL },
 133     { &SHELL32_Descriptor,  0, &shell32_ResourceDescriptor },
 134     { &TAPI32_Descriptor,   0, NULL },
 135     { &USER32_Descriptor,   0, &user32_ResourceDescriptor },
 136     { &VERSION_Descriptor,  0, NULL },
 137     { &W32SKRNL_Descriptor, 0, NULL },
 138     { &WINMM_Descriptor,    0, NULL },
 139     { &WINSPOOL_Descriptor, 0, NULL },
 140     { &WNASPI32_Descriptor, 0, NULL },
 141     { &WOW32_Descriptor,    0, NULL },
 142     { &WSOCK32_Descriptor,  0, NULL },
 143     /* Last entry */
 144     { NULL, 0, NULL }
 145 };
 146
 147 extern void RELAY_CallFrom32();
 148
 149 /***********************************************************************
 150  *           BUILTIN32_DoLoadImage
 151  *
 152  * Load a built-in Win32 module. Helper function for BUILTIN32_LoadImage.
 153  */
 154 static HMODULE BUILTIN32_DoLoadImage( BUILTIN32_DLL *dll )
 155 {
 156
 157     IMAGE_DATA_DIRECTORY *dir;
 158     IMAGE_DOS_HEADER *dos;
 159     IMAGE_NT_HEADERS *nt;
 160     IMAGE_SECTION_HEADER *sec;
 161     IMAGE_EXPORT_DIRECTORY *exp;
 162     LPVOID *funcs;
 163     LPSTR *names;
 164     DEBUG_ENTRY_POINT *debug;
 165     INT i, size;
 166     BYTE *addr;
 167
 168     /* Allocate the module */
 169
 170     size = (sizeof(IMAGE_DOS_HEADER)
 171             + sizeof(IMAGE_NT_HEADERS)
 172             + 2 * sizeof(IMAGE_SECTION_HEADER)
 173             + sizeof(IMAGE_EXPORT_DIRECTORY)
 174             + dll->descr->nb_funcs * sizeof(LPVOID)
 175             + dll->descr->nb_names * sizeof(LPSTR));
 176 #ifdef __i386__
 177     if (WARN_ON(relay) || TRACE_ON(relay))
 178         size += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 179 #endif
 180     addr  = VirtualAlloc( NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE );
 181     if (!addr) return 0;
 182     dos   = (IMAGE_DOS_HEADER *)addr;
 183     nt    = (IMAGE_NT_HEADERS *)(dos + 1);
 184     sec   = (IMAGE_SECTION_HEADER *)(nt + 1);
 185     exp   = (IMAGE_EXPORT_DIRECTORY *)(sec + 2);
 186     funcs = (LPVOID *)(exp + 1);
 187     names = (LPSTR *)(funcs + dll->descr->nb_funcs);
 188     debug = (DEBUG_ENTRY_POINT *)(names + dll->descr->nb_names);
 189
 190     /* Build the DOS and NT headers */
 191
 192     dos->e_magic  = IMAGE_DOS_SIGNATURE;
 193     dos->e_lfanew = sizeof(*dos);
 194
 195     nt->Signature                       = IMAGE_NT_SIGNATURE;
 196     nt->FileHeader.Machine              = IMAGE_FILE_MACHINE_I386;
 197     nt->FileHeader.NumberOfSections     = 2;  /* exports + code */
 198     nt->FileHeader.SizeOfOptionalHeader = sizeof(nt->OptionalHeader);
 199     nt->FileHeader.Characteristics      = IMAGE_FILE_DLL;
 200
 201     nt->OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
 202     nt->OptionalHeader.SizeOfCode                  = 0x1000;
 203     nt->OptionalHeader.SizeOfInitializedData       = 0;
 204     nt->OptionalHeader.SizeOfUninitializedData     = 0;
 205     nt->OptionalHeader.ImageBase                   = (DWORD)addr;
 206     nt->OptionalHeader.SectionAlignment            = 0x1000;
 207     nt->OptionalHeader.FileAlignment               = 0x1000;
 208     nt->OptionalHeader.MajorOperatingSystemVersion = 1;
 209     nt->OptionalHeader.MinorOperatingSystemVersion = 0;
 210     nt->OptionalHeader.MajorSubsystemVersion       = 4;
 211     nt->OptionalHeader.MinorSubsystemVersion       = 0;
 212     nt->OptionalHeader.SizeOfImage                 = size;
 213     nt->OptionalHeader.SizeOfHeaders               = (BYTE *)exp - addr;
 214     nt->OptionalHeader.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES;
 215     if (dll->descr->dllentrypoint)
 216         nt->OptionalHeader.AddressOfEntryPoint = (DWORD)dll->descr->dllentrypoint - (DWORD)addr;
 217
 218     /* Build the export directory */
 219
 220     dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
 221     dir->VirtualAddress = (BYTE *)exp - addr;
 222     dir->Size = sizeof(*exp)
 223                 + dll->descr->nb_funcs * sizeof(LPVOID)
 224                 + dll->descr->nb_names * sizeof(LPSTR);
 225
 226     /* Build the exports section */
 227
 228     strcpy( sec->Name, ".edata" );
 229     sec->Misc.VirtualSize = dir->Size;
 230     sec->VirtualAddress   = (BYTE *)exp - addr;
 231     sec->SizeOfRawData    = dir->Size;
 232     sec->PointerToRawData = (BYTE *)exp - addr;
 233     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 234                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ |
 235                              IMAGE_SCN_MEM_WRITE);
 236
 237     /* Build the resource directory */
 238     if(dll->rsc)
 239     {
 240         int i;
 241         void *rtab;
 242         IMAGE_RESOURCE_DATA_ENTRY *rdep;
 243
 244         rtab = HeapAlloc(GetProcessHeap(), 0, dll->rsc->restabsize);
 245         if(!rtab)
 246         {
 247                 ERR_(module)("Failed to get memory for resource directory\n");
 248                 VirtualFree(addr, size, MEM_RELEASE);
 249                 return 0;
 250         }
 251
 252         /*
 253          * The resource directory has to be copied because it contains
 254          * RVAs. These would be invalid if the dll is instantiated twice.
 255          */
 256         memcpy(rtab, dll->rsc->restab, dll->rsc->restabsize);
 257
 258         dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_RESOURCE_DIRECTORY];
 259         dir->VirtualAddress = (DWORD)rtab - (DWORD)addr;
 260         dir->Size = dll->rsc->restabsize;
 261         rdep = (IMAGE_RESOURCE_DATA_ENTRY *)((DWORD)rtab + (DWORD)dll->rsc->entries - (DWORD)dll->rsc->restab);
 262         for(i = 0; i < dll->rsc->nresources; i++)
 263         {
 264                 rdep[i].OffsetToData += (DWORD)dll->rsc->restab - (DWORD)addr;
 265         }
 266     }
 267
 268     /* Build the code section */
 269
 270     sec++;
 271     strcpy( sec->Name, ".code" );
 272     sec->SizeOfRawData = 0;
 273 #ifdef __i386__
 274     if (WARN_ON(relay) || TRACE_ON(relay))
 275         sec->SizeOfRawData += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 276 #endif
 277     sec->Misc.VirtualSize = sec->SizeOfRawData;
 278     sec->VirtualAddress   = (BYTE *)debug - addr;
 279     sec->PointerToRawData = (BYTE *)debug - addr;
 280     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 281                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ);
 282
 283     /* Build the exports section data */
 284
 285     exp->Name                  = ((BYTE *)dll->descr->name) - addr;  /*??*/
 286     exp->Base                  = dll->descr->base;
 287     exp->NumberOfFunctions     = dll->descr->nb_funcs;
 288     exp->NumberOfNames         = dll->descr->nb_names;
 289     exp->AddressOfFunctions    = (LPDWORD *)((BYTE *)funcs - addr);
 290     exp->AddressOfNames        = (LPDWORD *)((BYTE *)names - addr);
 291     exp->AddressOfNameOrdinals = (LPWORD *)((BYTE *)dll->descr->ordinals - addr);
 292
 293     /* Build the funcs table */
 294
 295     for (i = 0; i < dll->descr->nb_funcs; i++, funcs++, debug++)
 296     {
 297         BYTE args = dll->descr->args[i];
 298         int j;
 299
 300         if (!dll->descr->functions[i]) continue;
 301         *funcs = (LPVOID)((BYTE *)dll->descr->functions[i] - addr);
 302 #ifdef __i386__
 303         if (!(WARN_ON(relay) || TRACE_ON(relay))) continue;
 304         for (j=0;j<dll->descr->nb_names;j++)
 305             if (dll->descr->ordinals[j] == i)
 306                 break;
 307         if (j<dll->descr->nb_names) {
 308             if (dll->descr->names[j]) {
 309                 char buffer[200];
 310                 sprintf(buffer,"%s.%d: %s",dll->descr->name,i,dll->descr->names[j]);
 311                 if (!RELAY_ShowDebugmsgRelay(buffer))
 312                     continue;
 313             }
 314         }
 315         switch(args)
 316         {
 317         case 0xfe:  /* register func */
 318             debug->call       = 0xe8;
 319             debug->callfrom32 = (DWORD)dll->descr->functions[i] -
 320                                 (DWORD)&debug->ret;
 321             debug->ret        = 0x90;  /* nop */
 322             debug->args       = 0;
 323             *funcs = (LPVOID)((BYTE *)debug - addr);
 324             break;
 325         case 0xff:  /* stub or extern */
 326             break;
 327         default:  /* normal function (stdcall or cdecl) */
 328             if (TRACE_ON(relay)) {
 329                 debug->call       = 0xe8; /* lcall relative */
 330                 debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
 331                                     (DWORD)&debug->ret;
 332             } else {
 333                 debug->call       = 0xe9; /* ljmp relative */
 334                 debug->callfrom32 = (DWORD)dll->descr->functions[i] -
 335                                     (DWORD)&debug->ret;
 336             }
 337             debug->ret        = (args & 0x80) ? 0xc3 : 0xc2; /*ret/ret $n*/
 338             debug->args       = (args & 0x7f) * sizeof(int);
 339             *funcs = (LPVOID)((BYTE *)debug - addr);
 340             break;
 341         }
 342 #endif  /* __i386__ */
 343     }
 344
 345     /* Build the names table */
 346
 347     for (i = 0; i < exp->NumberOfNames; i++, names++)
 348         if (dll->descr->names[i])
 349             *names = (LPSTR)((BYTE *)dll->descr->names[i] - addr);
 350
 351     return (HMODULE)addr;
 352 }
 353
 354 /***********************************************************************
 355  *           BUILTIN32_LoadImage
 356  *
 357  * Load a built-in module.
 358  */
 359 HMODULE BUILTIN32_LoadImage( LPCSTR name, OFSTRUCT *ofs)
 360 {
 361     BUILTIN32_DLL *table;
 362     char dllname[16], *p;
 363     HMODULE hmod;
 364
 365     /* Fix the name in case we have a full path and extension */
 366
 367     if ((p = strrchr( name, '\\' ))) name = p + 1;
 368     lstrcpynA( dllname, name, sizeof(dllname) );
 369     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 370
 371     for (table = BuiltinDLLs; table->descr; table++)
 372         if (!lstrcmpiA( table->descr->name, dllname )) break;
 373     if (!table->descr) return 0;
 374
 375     if(table->flags & BI32_INSTANTIATED)
 376     {
 377         ERR_(module)("Attemp to instantiate built-in dll '%s' twice in the same address-space. Expect trouble!\n",
 378                 table->descr->name);
 379     }
 380
 381     sprintf( ofs->szPathName, "%s.DLL", table->descr->name );
 382     hmod = BUILTIN32_DoLoadImage( table );
 383     if(hmod)
 384         table->flags |= BI32_INSTANTIATED;
 385
 386     return hmod;
 387 }
 388
 389
 390 /***********************************************************************
 391  *           BUILTIN32_LoadLibraryExA
 392  *
 393  * Partly copied from the original PE_ version.
 394  *
 395  * Note: This implementation is not very nice and should be one with
 396  * the BUILTIN32_LoadImage function. But, we don't care too much
 397  * because this code will obsolete itself shortly when we get the
 398  * modularization of wine implemented (BS 05-Mar-1999).
 399  */
 400 WINE_MODREF *BUILTIN32_LoadLibraryExA(LPCSTR path, DWORD flags, DWORD *err)
 401 {
 402         LPCSTR          modName = NULL;
 403         OFSTRUCT        ofs;
 404         HMODULE         hModule32;
 405         HMODULE16       hModule16;
 406         NE_MODULE       *pModule;
 407         WINE_MODREF     *wm;
 408         char            dllname[256], *p;
 409
 410         /* Append .DLL to name if no extension present */
 411         strcpy( dllname, path );
 412         if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 413                 strcat( dllname, ".DLL" );
 414
 415         hModule32 = BUILTIN32_LoadImage(path, &ofs);
 416         if(!hModule32)
 417         {
 418                 *err = ERROR_FILE_NOT_FOUND;
 419                 return NULL;
 420         }
 421
 422         /* Create 16-bit dummy module */
 423         if ((hModule16 = MODULE_CreateDummyModule( &ofs, modName )) < 32)
 424         {
 425                 *err = (DWORD)hModule16;
 426                 return NULL;    /* FIXME: Should unload the builtin module */
 427         }
 428
 429         pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 430         pModule->flags = NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA | NE_FFLAGS_WIN32 | NE_FFLAGS_BUILTIN;
 431         pModule->module32 = hModule32;
 432
 433         /* Create 32-bit MODREF */
 434         if ( !(wm = PE_CreateModule( hModule32, &ofs, flags, TRUE )) )
 435         {
 436                 ERR_(win32)("can't load %s\n",ofs.szPathName);
 437                 FreeLibrary16( hModule16 );     /* FIXME: Should unload the builtin module */
 438                 *err = ERROR_OUTOFMEMORY;
 439                 return NULL;
 440         }
 441
 442         if (wm->binfmt.pe.pe_export)
 443                 SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
 444
 445         *err = 0;
 446         return wm;
 447 }
 448
 449
 450 /***********************************************************************
 451  *      BUILTIN32_UnloadLibrary
 452  *
 453  * Unload the built-in library and free the modref.
 454  */
 455 void BUILTIN32_UnloadLibrary(WINE_MODREF *wm)
 456 {
 457         /* FIXME: do something here */
 458 }
 459
 460
 461 /***********************************************************************
 462  *           BUILTIN32_GetEntryPoint
 463  *
 464  * Return the name of the DLL entry point corresponding
 465  * to a relay entry point address. This is used only by relay debugging.
 466  *
 467  * This function _must_ return the real entry point to call
 468  * after the debug info is printed.
 469  */
 470 ENTRYPOINT32 BUILTIN32_GetEntryPoint( char *buffer, void *relay,
 471                                       unsigned int *typemask )
 472 {
 473     BUILTIN32_DLL *dll;
 474     HMODULE hModule;
 475     int ordinal = 0, i;
 476
 477     /* First find the module */
 478
 479     for (dll = BuiltinDLLs; dll->descr; dll++)
 480         if ((dll->flags & BI32_INSTANTIATED)
 481             && ((hModule = GetModuleHandleA(dll->descr->name)) != 0))
 482         {
 483             IMAGE_SECTION_HEADER *sec = PE_SECTIONS(hModule);
 484             DEBUG_ENTRY_POINT *debug =
 485                  (DEBUG_ENTRY_POINT *)((DWORD)hModule + sec[1].VirtualAddress);
 486             DEBUG_ENTRY_POINT *func = (DEBUG_ENTRY_POINT *)relay;
 487
 488             if (debug <= func && func < debug + dll->descr->nb_funcs)
 489             {
 490                 ordinal = func - debug;
 491                 break;
 492             }
 493         }
 494
 495     if (!dll->descr)
 496         return (ENTRYPOINT32)NULL;
 497
 498     /* Now find the function */
 499
 500     for (i = 0; i < dll->descr->nb_names; i++)
 501         if (dll->descr->ordinals[i] == ordinal) break;
 502     assert( i < dll->descr->nb_names );
 503
 504     sprintf( buffer, "%s.%d: %s", dll->descr->name, ordinal + dll->descr->base,
 505              dll->descr->names[i] );
 506     *typemask = dll->descr->argtypes[ordinal];
 507     return dll->descr->functions[ordinal];
 508 }
 509
 510 /***********************************************************************
 511  *           BUILTIN32_SwitchRelayDebug
 512  *
 513  * FIXME: enhance to do it module relative.
 514  */
 515 void BUILTIN32_SwitchRelayDebug(BOOL onoff) {
 516     BUILTIN32_DLL *dll;
 517     HMODULE hModule;
 518     int i;
 519
 520 #ifdef __i386__
 521     if (!(TRACE_ON(relay) || WARN_ON(relay)))
 522         return;
 523     for (dll = BuiltinDLLs; dll->descr; dll++) {
 524         IMAGE_SECTION_HEADER *sec;
 525         DEBUG_ENTRY_POINT *debug;
 526         if (!(dll->flags & BI32_INSTANTIATED) || !(hModule = GetModuleHandleA(dll->descr->name)))
 527             continue;
 528
 529         sec = PE_SECTIONS(hModule);
 530         debug = (DEBUG_ENTRY_POINT *)((DWORD)hModule + sec[1].VirtualAddress);
 531         for (i = 0; i < dll->descr->nb_funcs; i++,debug++) {
 532             if (!dll->descr->functions[i]) continue;
 533             if ((dll->descr->args[i]==0xff) || (dll->descr->args[i]==0xfe))
 534                 continue;
 535             if (onoff) {
 536                 debug->call       = 0xe8; /* lcall relative */
 537                 debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
 538                                     (DWORD)&debug->ret;
 539             } else {
 540                 debug->call       = 0xe9; /* ljmp relative */
 541                 debug->callfrom32 = (DWORD)dll->descr->functions[i] -
 542                                     (DWORD)&debug->ret;
 543             }
 544         }
 545     }
 546 #endif /* __i386__ */
 547     return;
 548 }
 549
 550 /***********************************************************************
 551  *           BUILTIN32_Unimplemented
 552  *
 553  * This function is called for unimplemented 32-bit entry points (declared
 554  * as 'stub' in the spec file).
 555  */
 556 void BUILTIN32_Unimplemented( const BUILTIN32_DESCRIPTOR *descr, int ordinal )
 557 {
 558     const char *func_name = "???";
 559     int i;
 560
 561     __RESTORE_ES;  /* Just in case */
 562
 563     for (i = 0; i < descr->nb_names; i++)
 564         if (descr->ordinals[i] + descr->base == ordinal) break;
 565     if (i < descr->nb_names) func_name = descr->names[i];
 566
 567     MESSAGE( "No handler for Win32 routine %s.%d: %s",
 568              descr->name, ordinal, func_name );
 569 #ifdef __GNUC__
 570     MESSAGE( " (called from %p)", __builtin_return_address(1) );
 571 #endif
 572     MESSAGE( "\n" );
 573     ExitProcess(1);
 574 }
 575