dlls/krnl386.exe16/kernel.c

   1 /*
   2  * 16-bit kernel initialization code
   3  *
   4  * Copyright 2000 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23
  24 #define WINE_NO_INLINE_STRING
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winternl.h"
  28 #include "wownt32.h"
  29 #include "wine/winuser16.h"
  30
  31 #include "kernel16_private.h"
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(module);
  35
  36 extern DWORD WINAPI GetProcessFlags( DWORD processid );
  37
  38 static DWORD process_dword;
  39
  40 /***********************************************************************
  41  *           KERNEL thread initialisation routine
  42  */
  43 static void thread_attach(void)
  44 {
  45     /* allocate the 16-bit stack (FIXME: should be done lazily) */
  46     HGLOBAL16 hstack = WOWGlobalAlloc16( GMEM_FIXED, 0x10000 );
  47     kernel_get_thread_data()->stack_sel = GlobalHandleToSel16( hstack );
  48     NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( kernel_get_thread_data()->stack_sel,
  49                                                         0x10000 - sizeof(STACK16FRAME) );
  50     memset( (char *)GlobalLock16(hstack) + 0x10000 - sizeof(STACK16FRAME), 0, sizeof(STACK16FRAME) );
  51 }
  52
  53
  54 /***********************************************************************
  55  *           KERNEL thread finalisation routine
  56  */
  57 static void thread_detach(void)
  58 {
  59     /* free the 16-bit stack */
  60     WOWGlobalFree16( kernel_get_thread_data()->stack_sel );
  61     NtCurrentTeb()->WOW32Reserved = 0;
  62     if (NtCurrentTeb()->Tib.SubSystemTib) TASK_ExitTask();
  63 }
  64
  65
  66 /**************************************************************************
  67  *              DllMain
  68  */
  69 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
  70 {
  71     switch(reason)
  72     {
  73     case DLL_PROCESS_ATTACH:
  74         if (LoadLibrary16( "krnl386.exe" ) < 32) return FALSE;
  75         /* fall through */
  76     case DLL_THREAD_ATTACH:
  77         thread_attach();
  78         break;
  79     case DLL_THREAD_DETACH:
  80         thread_detach();
  81         break;
  82     }
  83     return TRUE;
  84 }
  85
  86
  87 /**************************************************************************
  88  *              DllEntryPoint   (KERNEL.669)
  89  */
  90 BOOL WINAPI KERNEL_DllEntryPoint( DWORD reasion, HINSTANCE16 inst, WORD ds,
  91                                   WORD heap, DWORD reserved1, WORD reserved2 )
  92 {
  93     static BOOL done;
  94
  95     /* the entry point can be called multiple times */
  96     if (done) return TRUE;
  97     done = TRUE;
  98
  99     /* create the shared heap for broken win95 native dlls */
 100     HeapCreate( HEAP_SHARED, 0, 0 );
 101
 102     /* setup emulation of protected instructions from 32-bit code */
 103     if (GetVersion() & 0x80000000) RtlAddVectoredExceptionHandler( TRUE, INSTR_vectored_handler );
 104
 105     /* Initialize 16-bit thunking entry points */
 106     if (!WOWTHUNK_Init()) return FALSE;
 107
 108     /* Initialize DOS memory */
 109     if (!DOSMEM_Init()) return FALSE;
 110
 111     /* Initialize special KERNEL entry points */
 112
 113     NE_SetEntryPoint( inst, 178, GetWinFlags16() );
 114
 115     NE_SetEntryPoint( inst, 454, wine_get_cs() );
 116     NE_SetEntryPoint( inst, 455, wine_get_ds() );
 117
 118     NE_SetEntryPoint( inst, 183, DOSMEM_0000H );       /* KERNEL.183: __0000H */
 119     NE_SetEntryPoint( inst, 173, DOSMEM_BiosSysSeg );  /* KERNEL.173: __ROMBIOS */
 120     NE_SetEntryPoint( inst, 193, DOSMEM_BiosDataSeg ); /* KERNEL.193: __0040H */
 121     NE_SetEntryPoint( inst, 194, DOSMEM_BiosSysSeg );  /* KERNEL.194: __F000H */
 122
 123     /* Initialize KERNEL.THHOOK */
 124     TASK_InstallTHHook(MapSL((SEGPTR)GetProcAddress16( inst, (LPCSTR)332 )));
 125     TASK_CreateMainTask();
 126
 127     /* Initialize the real-mode selector entry points */
 128 #define SET_ENTRY_POINT( num, addr ) \
 129     NE_SetEntryPoint( inst, (num), GLOBAL_CreateBlock( GMEM_FIXED, \
 130                       DOSMEM_MapDosToLinear(addr), 0x10000, inst, \
 131                       WINE_LDT_FLAGS_DATA ))
 132
 133     SET_ENTRY_POINT( 174, 0xa0000 );  /* KERNEL.174: __A000H */
 134     SET_ENTRY_POINT( 181, 0xb0000 );  /* KERNEL.181: __B000H */
 135     SET_ENTRY_POINT( 182, 0xb8000 );  /* KERNEL.182: __B800H */
 136     SET_ENTRY_POINT( 195, 0xc0000 );  /* KERNEL.195: __C000H */
 137     SET_ENTRY_POINT( 179, 0xd0000 );  /* KERNEL.179: __D000H */
 138     SET_ENTRY_POINT( 190, 0xe0000 );  /* KERNEL.190: __E000H */
 139 #undef SET_ENTRY_POINT
 140
 141     /* Force loading of some dlls */
 142     LoadLibrary16( "system.drv" );
 143     LoadLibrary16( "comm.drv" );
 144
 145     return TRUE;
 146 }
 147
 148 /***********************************************************************
 149  *         GetVersion   (KERNEL.3)
 150  */
 151 DWORD WINAPI GetVersion16(void)
 152 {
 153     static WORD dosver, winver;
 154
 155     if (!dosver)  /* not determined yet */
 156     {
 157         RTL_OSVERSIONINFOEXW info;
 158
 159         info.dwOSVersionInfoSize = sizeof(info);
 160         if (RtlGetVersion( &info )) return 0;
 161
 162         if (info.dwMajorVersion <= 3)
 163             winver = MAKEWORD( info.dwMajorVersion, info.dwMinorVersion );
 164         else
 165             winver = MAKEWORD( 3, 95 );
 166
 167         switch(info.dwPlatformId)
 168         {
 169         case VER_PLATFORM_WIN32s:
 170             switch(MAKELONG( info.dwMinorVersion, info.dwMajorVersion ))
 171             {
 172             case 0x0200:
 173                 dosver = 0x0303;  /* DOS 3.3 for Windows 2.0 */
 174                 break;
 175             case 0x0300:
 176                 dosver = 0x0500;  /* DOS 5.0 for Windows 3.0 */
 177                 break;
 178             default:
 179                 dosver = 0x0616;  /* DOS 6.22 for Windows 3.1 and later */
 180                 break;
 181             }
 182             break;
 183         case VER_PLATFORM_WIN32_WINDOWS:
 184             /* DOS 8.0 for WinME, 7.0 for Win95/98 */
 185             if (info.dwMinorVersion >= 90) dosver = 0x0800;
 186             else dosver = 0x0700;
 187             break;
 188         case VER_PLATFORM_WIN32_NT:
 189             dosver = 0x0500;  /* always DOS 5.0 for NT */
 190             break;
 191         }
 192         TRACE( "DOS %d.%02d Win %d.%02d\n",
 193                HIBYTE(dosver), LOBYTE(dosver), LOBYTE(winver), HIBYTE(winver) );
 194     }
 195     return MAKELONG( winver, dosver );
 196 }
 197
 198 /***********************************************************************
 199  *              Reserved1 (KERNEL.77)
 200  */
 201 SEGPTR WINAPI KERNEL_AnsiNext16(SEGPTR current)
 202 {
 203     return (*(char *)MapSL(current)) ? current + 1 : current;
 204 }
 205
 206 /***********************************************************************
 207  *              Reserved2(KERNEL.78)
 208  */
 209 SEGPTR WINAPI KERNEL_AnsiPrev16( SEGPTR start, SEGPTR current )
 210 {
 211     return (current==start)?start:current-1;
 212 }
 213
 214 /***********************************************************************
 215  *              Reserved3 (KERNEL.79)
 216  */
 217 SEGPTR WINAPI KERNEL_AnsiUpper16( SEGPTR strOrChar )
 218 {
 219     /* uppercase only one char if strOrChar < 0x10000 */
 220     if (HIWORD(strOrChar))
 221     {
 222         char *s = MapSL(strOrChar);
 223         while (*s)
 224         {
 225             *s = toupper(*s);
 226             s++;
 227         }
 228         return strOrChar;
 229     }
 230     else return toupper((char)strOrChar);
 231 }
 232
 233 /***********************************************************************
 234  *              Reserved4 (KERNEL.80)
 235  */
 236 SEGPTR WINAPI KERNEL_AnsiLower16( SEGPTR strOrChar )
 237 {
 238     /* lowercase only one char if strOrChar < 0x10000 */
 239     if (HIWORD(strOrChar))
 240     {
 241         char *s = MapSL(strOrChar);
 242         while (*s)
 243         {
 244             *s = tolower(*s);
 245             s++;
 246         }
 247         return strOrChar;
 248     }
 249     else return tolower((char)strOrChar);
 250 }
 251
 252 /***********************************************************************
 253  *              Reserved5 (KERNEL.87)
 254  */
 255 INT16 WINAPI KERNEL_lstrcmp16( LPCSTR str1, LPCSTR str2 )
 256 {
 257     int ret = strcmp( str1, str2 );
 258
 259     /* Looks too complicated, but in optimized strcpy we might get
 260      * a 32bit wide difference and would truncate it to 16 bit, so
 261      * erroneously returning equality. */
 262     if (ret < 0) return -1;
 263     if (ret > 0) return  1;
 264     return 0;
 265 }
 266
 267 /***********************************************************************
 268  *           lstrcpy   (KERNEL.88)
 269  */
 270 SEGPTR WINAPI lstrcpy16( SEGPTR dst, LPCSTR src )
 271 {
 272     if (!lstrcpyA( MapSL(dst), src )) dst = 0;
 273     return dst;
 274 }
 275
 276 /***********************************************************************
 277  *           lstrcat   (KERNEL.89)
 278  */
 279 SEGPTR WINAPI lstrcat16( SEGPTR dst, LPCSTR src )
 280 {
 281     /* Windows does not check for NULL pointers here, so we don't either */
 282     strcat( MapSL(dst), src );
 283     return dst;
 284 }
 285
 286 /***********************************************************************
 287  *           lstrlen   (KERNEL.90)
 288  */
 289 INT16 WINAPI lstrlen16( LPCSTR str )
 290 {
 291     return (INT16)lstrlenA( str );
 292 }
 293
 294 /***********************************************************************
 295  *           OutputDebugString   (KERNEL.115)
 296  */
 297 void WINAPI OutputDebugString16( LPCSTR str )
 298 {
 299     OutputDebugStringA( str );
 300 }
 301
 302 /***********************************************************************
 303  *          GetWinFlags   (KERNEL.132)
 304  */
 305 DWORD WINAPI GetWinFlags16(void)
 306 {
 307     static const long cpuflags[5] = { WF_CPU086, WF_CPU186, WF_CPU286, WF_CPU386, WF_CPU486 };
 308     SYSTEM_INFO si;
 309     OSVERSIONINFOA ovi;
 310     DWORD result;
 311
 312     GetSystemInfo(&si);
 313
 314     /* There doesn't seem to be any Pentium flag.  */
 315     result = cpuflags[min(si.wProcessorLevel, 4)] | WF_ENHANCED | WF_PMODE | WF_80x87 | WF_PAGING;
 316     if (si.wProcessorLevel >= 4) result |= WF_HASCPUID;
 317     ovi.dwOSVersionInfoSize = sizeof(ovi);
 318     GetVersionExA(&ovi);
 319     if (ovi.dwPlatformId == VER_PLATFORM_WIN32_NT)
 320         result |= WF_WIN32WOW; /* undocumented WF_WINNT */
 321     return result;
 322 }
 323
 324 /***********************************************************************
 325  *         GetVersionEx   (KERNEL.149)
 326  */
 327 BOOL16 WINAPI GetVersionEx16(OSVERSIONINFO16 *v)
 328 {
 329     OSVERSIONINFOA info;
 330
 331     if (v->dwOSVersionInfoSize < sizeof(OSVERSIONINFO16))
 332     {
 333         WARN("wrong OSVERSIONINFO size from app\n");
 334         return FALSE;
 335     }
 336
 337     info.dwOSVersionInfoSize = sizeof(info);
 338     if (!GetVersionExA( &info )) return FALSE;
 339
 340     v->dwMajorVersion = info.dwMajorVersion;
 341     v->dwMinorVersion = info.dwMinorVersion;
 342     v->dwBuildNumber  = info.dwBuildNumber;
 343     v->dwPlatformId   = info.dwPlatformId;
 344     strcpy( v->szCSDVersion, info.szCSDVersion );
 345     return TRUE;
 346 }
 347
 348 /***********************************************************************
 349  *           DebugBreak   (KERNEL.203)
 350  */
 351 void WINAPI DebugBreak16( CONTEXT *context )
 352 {
 353     EXCEPTION_RECORD rec;
 354
 355     rec.ExceptionCode    = EXCEPTION_BREAKPOINT;
 356     rec.ExceptionFlags   = 0;
 357     rec.ExceptionRecord  = NULL;
 358     rec.ExceptionAddress = (LPVOID)context->Eip;
 359     rec.NumberParameters = 0;
 360     NtRaiseException( &rec, context, TRUE );
 361 }
 362
 363 /***********************************************************************
 364  *           K329                    (KERNEL.329)
 365  *
 366  * TODO:
 367  * Should fill lpBuffer only if DBO_BUFFERFILL has been set by SetWinDebugInfo()
 368  */
 369 void WINAPI DebugFillBuffer(LPSTR lpBuffer, WORD wBytes)
 370 {
 371     memset(lpBuffer, 0xf9 /* DBGFILL_BUFFER */, wBytes);
 372 }
 373
 374 /***********************************************************************
 375  *           DiagQuery                          (KERNEL.339)
 376  *
 377  * returns TRUE if Win called with "/b" (bootlog.txt)
 378  */
 379 BOOL16 WINAPI DiagQuery16(void)
 380 {
 381     return FALSE;
 382 }
 383
 384 /***********************************************************************
 385  *           DiagOutput                         (KERNEL.340)
 386  *
 387  * writes a debug string into <windir>\bootlog.txt
 388  */
 389 void WINAPI DiagOutput16(LPCSTR str)
 390 {
 391     /* FIXME */
 392     TRACE("DIAGOUTPUT:%s\n", debugstr_a(str));
 393 }
 394
 395 /***********************************************************************
 396  *           hmemcpy   (KERNEL.348)
 397  */
 398 void WINAPI hmemcpy16( LPVOID dst, LPCVOID src, LONG count )
 399 {
 400     memcpy( dst, src, count );
 401 }
 402
 403 /***********************************************************************
 404  *           lstrcpyn   (KERNEL.353)
 405  */
 406 SEGPTR WINAPI lstrcpyn16( SEGPTR dst, LPCSTR src, INT16 n )
 407 {
 408     if (!lstrcpynA( MapSL(dst), src, n )) return 0;
 409     return dst;
 410 }
 411
 412 /***********************************************************************
 413  *           lstrcatn   (KERNEL.352)
 414  */
 415 SEGPTR WINAPI lstrcatn16( SEGPTR dst, LPCSTR src, INT16 n )
 416 {
 417     LPSTR p = MapSL(dst);
 418     LPSTR start = p;
 419
 420     while (*p) p++;
 421     if ((n -= (p - start)) <= 0) return dst;
 422     lstrcpynA( p, src, n );
 423     return dst;
 424 }
 425
 426 #if 0  /* Not used at this time. This is here for documentation only */
 427
 428 /* WINDEBUGINFO flags values */
 429 #define WDI_OPTIONS         0x0001
 430 #define WDI_FILTER          0x0002
 431 #define WDI_ALLOCBREAK      0x0004
 432
 433 /* dwOptions values */
 434 #define DBO_CHECKHEAP       0x0001
 435 #define DBO_BUFFERFILL      0x0004
 436 #define DBO_DISABLEGPTRAPPING 0x0010
 437 #define DBO_CHECKFREE       0x0020
 438
 439 #define DBO_SILENT          0x8000
 440
 441 #define DBO_TRACEBREAK      0x2000
 442 #define DBO_WARNINGBREAK    0x1000
 443 #define DBO_NOERRORBREAK    0x0800
 444 #define DBO_NOFATALBREAK    0x0400
 445 #define DBO_INT3BREAK       0x0100
 446
 447 /* DebugOutput flags values */
 448 #define DBF_TRACE           0x0000
 449 #define DBF_WARNING         0x4000
 450 #define DBF_ERROR           0x8000
 451 #define DBF_FATAL           0xc000
 452
 453 /* dwFilter values */
 454 #define DBF_KERNEL          0x1000
 455 #define DBF_KRN_MEMMAN      0x0001
 456 #define DBF_KRN_LOADMODULE  0x0002
 457 #define DBF_KRN_SEGMENTLOAD 0x0004
 458 #define DBF_USER            0x0800
 459 #define DBF_GDI             0x0400
 460 #define DBF_MMSYSTEM        0x0040
 461 #define DBF_PENWIN          0x0020
 462 #define DBF_APPLICATION     0x0008
 463 #define DBF_DRIVER          0x0010
 464
 465 #endif /* NOLOGERROR */
 466
 467 /***********************************************************************
 468  *          GetWinDebugInfo   (KERNEL.355)
 469  */
 470 BOOL16 WINAPI GetWinDebugInfo16(WINDEBUGINFO16 *lpwdi, UINT16 flags)
 471 {
 472     FIXME("(%p,%d): stub returning FALSE\n", lpwdi, flags);
 473     /* FALSE means not in debugging mode/version */
 474     /* Can this type of debugging be used in wine ? */
 475     /* Constants: WDI_OPTIONS WDI_FILTER WDI_ALLOCBREAK */
 476     return FALSE;
 477 }
 478
 479 /***********************************************************************
 480  *          SetWinDebugInfo   (KERNEL.356)
 481  */
 482 BOOL16 WINAPI SetWinDebugInfo16(WINDEBUGINFO16 *lpwdi)
 483 {
 484     FIXME("(%p): stub returning FALSE\n", lpwdi);
 485     /* FALSE means not in debugging mode/version */
 486     /* Can this type of debugging be used in wine ? */
 487     /* Constants: WDI_OPTIONS WDI_FILTER WDI_ALLOCBREAK */
 488     return FALSE;
 489 }
 490
 491 /***********************************************************************
 492  *           UnicodeToAnsi   (KERNEL.434)
 493  */
 494 INT16 WINAPI UnicodeToAnsi16( LPCWSTR src, LPSTR dst, INT16 codepage )
 495 {
 496     if ( codepage == -1 ) codepage = CP_ACP;
 497     return WideCharToMultiByte( codepage, 0, src, -1, dst, 0x7fffffff, NULL, NULL );
 498 }
 499
 500 /***********************************************************************
 501  *       VWin32_EventCreate     (KERNEL.442)
 502  */
 503 HANDLE WINAPI VWin32_EventCreate(VOID)
 504 {
 505     HANDLE hEvent = CreateEventW( NULL, FALSE, 0, NULL );
 506     return ConvertToGlobalHandle( hEvent );
 507 }
 508
 509 /***********************************************************************
 510  *       VWin32_EventDestroy    (KERNEL.443)
 511  */
 512 VOID WINAPI VWin32_EventDestroy(HANDLE event)
 513 {
 514     CloseHandle( event );
 515 }
 516
 517 /***********************************************************************
 518  *       VWin32_EventWait       (KERNEL.450)
 519  */
 520 VOID WINAPI VWin32_EventWait(HANDLE event)
 521 {
 522     DWORD mutex_count;
 523
 524     ReleaseThunkLock( &mutex_count );
 525     WaitForSingleObject( event, INFINITE );
 526     RestoreThunkLock( mutex_count );
 527 }
 528
 529 /***********************************************************************
 530  *       VWin32_EventSet        (KERNEL.451)
 531  *       KERNEL_479             (KERNEL.479)
 532  */
 533 VOID WINAPI VWin32_EventSet(HANDLE event)
 534 {
 535     SetEvent( event );
 536 }
 537
 538 /***********************************************************************
 539  *           GetProcAddress32                   (KERNEL.453)
 540  */
 541 FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
 542 {
 543     /* FIXME: we used to disable snoop when returning proc for Win16 subsystem */
 544     return GetProcAddress( hModule, function );
 545 }
 546
 547 /***********************************************************************
 548  *           CreateW32Event    (KERNEL.457)
 549  */
 550 HANDLE WINAPI CreateW32Event( BOOL manual_reset, BOOL initial_state )
 551 {
 552     return CreateEventW( NULL, manual_reset, initial_state, NULL );
 553 }
 554
 555 /***********************************************************************
 556  *           SetW32Event (KERNEL.458)
 557  */
 558 BOOL WINAPI SetW32Event( HANDLE handle )
 559 {
 560     return SetEvent( handle );
 561 }
 562
 563 /***********************************************************************
 564  *           ResetW32Event (KERNEL.459)
 565  */
 566 BOOL WINAPI ResetW32Event( HANDLE handle )
 567 {
 568     return ResetEvent( handle );
 569 }
 570
 571 /***********************************************************************
 572  *           WaitForSingleObject   (KERNEL.460)
 573  */
 574 DWORD WINAPI WaitForSingleObject16( HANDLE handle, DWORD timeout )
 575 {
 576     DWORD retval, mutex_count;
 577
 578     ReleaseThunkLock( &mutex_count );
 579     retval = WaitForSingleObject( handle, timeout );
 580     RestoreThunkLock( mutex_count );
 581     return retval;
 582 }
 583
 584 /***********************************************************************
 585  *           WaitForMultipleObjects   (KERNEL.461)
 586  */
 587 DWORD WINAPI WaitForMultipleObjects16( DWORD count, const HANDLE *handles,
 588                                        BOOL wait_all, DWORD timeout )
 589 {
 590     DWORD retval, mutex_count;
 591
 592     ReleaseThunkLock( &mutex_count );
 593     retval = WaitForMultipleObjectsEx( count, handles, wait_all, timeout, FALSE );
 594     RestoreThunkLock( mutex_count );
 595     return retval;
 596 }
 597
 598 /***********************************************************************
 599  *              GetCurrentThreadId (KERNEL.462)
 600  */
 601 DWORD WINAPI GetCurrentThreadId16(void)
 602 {
 603     return GetCurrentThreadId();
 604 }
 605
 606 /***********************************************************************
 607  *           ExitProcess   (KERNEL.466)
 608  */
 609 void WINAPI ExitProcess16( WORD status )
 610 {
 611     DWORD count;
 612     ReleaseThunkLock( &count );
 613     ExitProcess( status );
 614 }
 615
 616 /***********************************************************************
 617  *              GetCurrentProcessId (KERNEL.471)
 618  */
 619 DWORD WINAPI GetCurrentProcessId16(void)
 620 {
 621     return GetCurrentProcessId();
 622 }
 623
 624 /*********************************************************************
 625  *           CloseW32Handle (KERNEL.474)
 626  */
 627 BOOL WINAPI CloseW32Handle( HANDLE handle )
 628 {
 629     return CloseHandle( handle );
 630 }
 631
 632 /***********************************************************************
 633  *           ConvertToGlobalHandle   (KERNEL.476)
 634  */
 635 HANDLE WINAPI ConvertToGlobalHandle16( HANDLE handle )
 636 {
 637     return ConvertToGlobalHandle( handle );
 638 }
 639
 640 /*********************************************************************
 641  *           MapProcessHandle   (KERNEL.483)
 642  */
 643 DWORD WINAPI MapProcessHandle( HANDLE hProcess )
 644 {
 645     return GetProcessId( hProcess );
 646 }
 647
 648 /***********************************************************************
 649  *           SetProcessDword    (KERNEL.484)
 650  * 'Of course you cannot directly access Windows internal structures'
 651  */
 652 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 653 {
 654     TRACE("(%d, %d)\n", dwProcessID, offset );
 655
 656     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 657     {
 658         ERR("%d: process %x not accessible\n", offset, dwProcessID);
 659         return;
 660     }
 661
 662     switch ( offset )
 663     {
 664     case GPD_APP_COMPAT_FLAGS:
 665     case GPD_LOAD_DONE_EVENT:
 666     case GPD_HINSTANCE16:
 667     case GPD_WINDOWS_VERSION:
 668     case GPD_THDB:
 669     case GPD_PDB:
 670     case GPD_STARTF_SHELLDATA:
 671     case GPD_STARTF_HOTKEY:
 672     case GPD_STARTF_SHOWWINDOW:
 673     case GPD_STARTF_SIZE:
 674     case GPD_STARTF_POSITION:
 675     case GPD_STARTF_FLAGS:
 676     case GPD_PARENT:
 677     case GPD_FLAGS:
 678         ERR("Not allowed to modify offset %d\n", offset );
 679         break;
 680     case GPD_USERDATA:
 681         process_dword = value;
 682         break;
 683     default:
 684         ERR("Unknown offset %d\n", offset );
 685         break;
 686     }
 687 }
 688
 689 /***********************************************************************
 690  *           GetProcessDword    (KERNEL.485)
 691  * 'Of course you cannot directly access Windows internal structures'
 692  */
 693 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 694 {
 695     DWORD               x, y;
 696     STARTUPINFOW        siw;
 697
 698     TRACE("(%d, %d)\n", dwProcessID, offset );
 699
 700     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 701     {
 702         ERR("%d: process %x not accessible\n", offset, dwProcessID);
 703         return 0;
 704     }
 705
 706     switch ( offset )
 707     {
 708     case GPD_APP_COMPAT_FLAGS:
 709         return GetAppCompatFlags16(0);
 710     case GPD_LOAD_DONE_EVENT:
 711         return 0;
 712     case GPD_HINSTANCE16:
 713         return GetTaskDS16();
 714     case GPD_WINDOWS_VERSION:
 715         return GetExeVersion16();
 716     case GPD_THDB:
 717         return (DWORD_PTR)NtCurrentTeb() - 0x10 /* FIXME */;
 718     case GPD_PDB:
 719         return (DWORD_PTR)NtCurrentTeb()->Peb; /* FIXME: truncating a pointer */
 720     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 721         GetStartupInfoW(&siw);
 722         return HandleToULong(siw.hStdOutput);
 723     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 724         GetStartupInfoW(&siw);
 725         return HandleToULong(siw.hStdInput);
 726     case GPD_STARTF_SHOWWINDOW:
 727         GetStartupInfoW(&siw);
 728         return siw.wShowWindow;
 729     case GPD_STARTF_SIZE:
 730         GetStartupInfoW(&siw);
 731         x = siw.dwXSize;
 732         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 733         y = siw.dwYSize;
 734         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 735         return MAKELONG( x, y );
 736     case GPD_STARTF_POSITION:
 737         GetStartupInfoW(&siw);
 738         x = siw.dwX;
 739         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 740         y = siw.dwY;
 741         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 742         return MAKELONG( x, y );
 743     case GPD_STARTF_FLAGS:
 744         GetStartupInfoW(&siw);
 745         return siw.dwFlags;
 746     case GPD_PARENT:
 747         return 0;
 748     case GPD_FLAGS:
 749         return GetProcessFlags(0);
 750     case GPD_USERDATA:
 751         return process_dword;
 752     default:
 753         ERR("Unknown offset %d\n", offset );
 754         return 0;
 755     }
 756 }
 757
 758 /***********************************************************************
 759  *           FreeLibrary32 (KERNEL.486)
 760  */
 761 BOOL WINAPI FreeLibrary32_16( HINSTANCE module )
 762 {
 763     return FreeLibrary( module );
 764 }
 765
 766 /***********************************************************************
 767  *              GetModuleFileName32     (KERNEL.487)
 768  */
 769 DWORD WINAPI GetModuleFileName32_16( HMODULE module, LPSTR buffer, DWORD size )
 770 {
 771     return GetModuleFileNameA( module, buffer, size );
 772 }
 773
 774 /***********************************************************************
 775  *              GetModuleHandle32        (KERNEL.488)
 776  */
 777 HMODULE WINAPI GetModuleHandle32_16(LPCSTR module)
 778 {
 779     return GetModuleHandleA( module );
 780 }
 781
 782 /***********************************************************************
 783  *              RegisterServiceProcess (KERNEL.491)
 784  */
 785 DWORD WINAPI RegisterServiceProcess16( DWORD dwProcessId, DWORD dwType )
 786 {
 787     return 1; /* success */
 788 }
 789
 790 /***********************************************************************
 791  *           WaitForMultipleObjectsEx   (KERNEL.495)
 792  */
 793 DWORD WINAPI WaitForMultipleObjectsEx16( DWORD count, const HANDLE *handles,
 794                                          BOOL wait_all, DWORD timeout, BOOL alertable )
 795 {
 796     DWORD retval, mutex_count;
 797
 798     ReleaseThunkLock( &mutex_count );
 799     retval = WaitForMultipleObjectsEx( count, handles, wait_all, timeout, alertable );
 800     RestoreThunkLock( mutex_count );
 801     return retval;
 802 }
 803
 804 /**********************************************************************
 805  * VWin32_BoostThreadGroup   (KERNEL.535)
 806  */
 807 VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
 808 {
 809     FIXME("(0x%08x,%d): stub\n", threadId, boost);
 810 }
 811
 812
 813 /**********************************************************************
 814  * VWin32_BoostThreadStatic   (KERNEL.536)
 815  */
 816 VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
 817 {
 818     FIXME("(0x%08x,%d): stub\n", threadId, boost);
 819 }
 820
 821 /***********************************************************************
 822  *              EnableDos (KERNEL.41)
 823  *              DisableDos (KERNEL.42)
 824  *              GetLastDiskChange (KERNEL.98)
 825  *              ValidateCodeSegments (KERNEL.100)
 826  *              KbdRst (KERNEL.123)
 827  *              EnableKernel (KERNEL.124)
 828  *              DisableKernel (KERNEL.125)
 829  *              ValidateFreeSpaces (KERNEL.200)
 830  *              K237 (KERNEL.237)
 831  *              BUNNY_351 (KERNEL.351)
 832  *              PIGLET_361 (KERNEL.361)
 833  *
 834  * Entry point for kernel functions that do nothing.
 835  */
 836 LONG WINAPI KERNEL_nop(void)
 837 {
 838     return 0;
 839 }
 840
 841 /***********************************************************************
 842  *           ToolHelpHook                             (KERNEL.341)
 843  *      see "Undocumented Windows"
 844  */
 845 FARPROC16 WINAPI ToolHelpHook16(FARPROC16 func)
 846 {
 847     static FARPROC16 hook;
 848
 849     FIXME("(%p), stub.\n", func);
 850     return InterlockedExchangePointer( (void **)&hook, func );
 851 }
 852
 853 /* thunk for 16-bit CreateThread */
 854 struct thread_args
 855 {
 856     FARPROC16 proc;
 857     DWORD     param;
 858 };
 859
 860 static DWORD CALLBACK start_thread16( LPVOID threadArgs )
 861 {
 862     struct thread_args args = *(struct thread_args *)threadArgs;
 863     HeapFree( GetProcessHeap(), 0, threadArgs );
 864     return K32WOWCallback16( (DWORD)args.proc, args.param );
 865 }
 866
 867 /***********************************************************************
 868  *           CreateThread16   (KERNEL.441)
 869  */
 870 HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
 871                               FARPROC16 start, SEGPTR param,
 872                               DWORD flags, LPDWORD id )
 873 {
 874     struct thread_args *args = HeapAlloc( GetProcessHeap(), 0, sizeof(*args) );
 875     if (!args) return INVALID_HANDLE_VALUE;
 876     args->proc = start;
 877     args->param = param;
 878     return CreateThread( sa, stack, start_thread16, args, flags, id );
 879 }
 880
 881 /***********************************************************************
 882  *           _DebugOutput                    (KERNEL.328)
 883  */
 884 void WINAPIV _DebugOutput( WORD flags, LPCSTR spec, VA_LIST16 valist )
 885 {
 886     char caller[101];
 887
 888     /* Decode caller address */
 889     if (!GetModuleName16( GetExePtr(CURRENT_STACK16->cs), caller, sizeof(caller) ))
 890         sprintf( caller, "%04X:%04X", CURRENT_STACK16->cs, CURRENT_STACK16->ip );
 891
 892     /* FIXME: cannot use wvsnprintf16 from kernel */
 893     /* wvsnprintf16( temp, sizeof(temp), spec, valist ); */
 894
 895     /* Output */
 896     FIXME("%s %04x %s\n", caller, flags, debugstr_a(spec) );
 897 }