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 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winternl.h"
  27 #include "wownt32.h"
  28 #include "wine/winuser16.h"
  29
  30 #include "kernel16_private.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(module);
  34
  35 extern DWORD WINAPI GetProcessFlags( DWORD processid );
  36
  37 static DWORD process_dword;
  38
  39 /***********************************************************************
  40  *           KERNEL thread initialisation routine
  41  */
  42 static void thread_attach(void)
  43 {
  44     /* allocate the 16-bit stack (FIXME: should be done lazily) */
  45     HGLOBAL16 hstack = WOWGlobalAlloc16( GMEM_FIXED, 0x10000 );
  46     kernel_get_thread_data()->stack_sel = GlobalHandleToSel16( hstack );
  47     NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( kernel_get_thread_data()->stack_sel,
  48                                                         0x10000 - sizeof(STACK16FRAME) );
  49     memset( (char *)GlobalLock16(hstack) + 0x10000 - sizeof(STACK16FRAME), 0, sizeof(STACK16FRAME) );
  50 }
  51
  52
  53 /***********************************************************************
  54  *           KERNEL thread finalisation routine
  55  */
  56 static void thread_detach(void)
  57 {
  58     /* free the 16-bit stack */
  59     WOWGlobalFree16( kernel_get_thread_data()->stack_sel );
  60     NtCurrentTeb()->WOW32Reserved = 0;
  61     if (NtCurrentTeb()->Tib.SubSystemTib) TASK_ExitTask();
  62 }
  63
  64
  65 /**************************************************************************
  66  *              DllMain
  67  */
  68 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
  69 {
  70     switch(reason)
  71     {
  72     case DLL_PROCESS_ATTACH:
  73         LoadLibrary16( "krnl386.exe" );
  74         /* fall through */
  75     case DLL_THREAD_ATTACH:
  76         thread_attach();
  77         break;
  78     case DLL_THREAD_DETACH:
  79         thread_detach();
  80         break;
  81     }
  82     return TRUE;
  83 }
  84
  85
  86 /**************************************************************************
  87  *              DllEntryPoint   (KERNEL.669)
  88  */
  89 BOOL WINAPI KERNEL_DllEntryPoint( DWORD reasion, HINSTANCE16 inst, WORD ds,
  90                                   WORD heap, DWORD reserved1, WORD reserved2 )
  91 {
  92     static int done;
  93
  94     /* the entry point can be called multiple times */
  95     if (done) return TRUE;
  96     done = 1;
  97
  98     /* setup emulation of protected instructions from 32-bit code */
  99     if (GetVersion() & 0x80000000) RtlAddVectoredExceptionHandler( TRUE, INSTR_vectored_handler );
 100
 101     /* Initialize 16-bit thunking entry points */
 102     if (!WOWTHUNK_Init()) return FALSE;
 103
 104     /* Initialize DOS memory */
 105     if (!DOSMEM_Init()) return FALSE;
 106
 107     /* Initialize special KERNEL entry points */
 108
 109     NE_SetEntryPoint( inst, 178, GetWinFlags16() );
 110
 111     NE_SetEntryPoint( inst, 454, wine_get_cs() );
 112     NE_SetEntryPoint( inst, 455, wine_get_ds() );
 113
 114     NE_SetEntryPoint( inst, 183, DOSMEM_0000H );       /* KERNEL.183: __0000H */
 115     NE_SetEntryPoint( inst, 173, DOSMEM_BiosSysSeg );  /* KERNEL.173: __ROMBIOS */
 116     NE_SetEntryPoint( inst, 193, DOSMEM_BiosDataSeg ); /* KERNEL.193: __0040H */
 117     NE_SetEntryPoint( inst, 194, DOSMEM_BiosSysSeg );  /* KERNEL.194: __F000H */
 118
 119     /* Initialize KERNEL.THHOOK */
 120     TASK_InstallTHHook(MapSL((SEGPTR)GetProcAddress16( inst, (LPCSTR)332 )));
 121     TASK_CreateMainTask();
 122
 123     /* Initialize the real-mode selector entry points */
 124 #define SET_ENTRY_POINT( num, addr ) \
 125     NE_SetEntryPoint( inst, (num), GLOBAL_CreateBlock( GMEM_FIXED, \
 126                       DOSMEM_MapDosToLinear(addr), 0x10000, inst, \
 127                       WINE_LDT_FLAGS_DATA ))
 128
 129     SET_ENTRY_POINT( 174, 0xa0000 );  /* KERNEL.174: __A000H */
 130     SET_ENTRY_POINT( 181, 0xb0000 );  /* KERNEL.181: __B000H */
 131     SET_ENTRY_POINT( 182, 0xb8000 );  /* KERNEL.182: __B800H */
 132     SET_ENTRY_POINT( 195, 0xc0000 );  /* KERNEL.195: __C000H */
 133     SET_ENTRY_POINT( 179, 0xd0000 );  /* KERNEL.179: __D000H */
 134     SET_ENTRY_POINT( 190, 0xe0000 );  /* KERNEL.190: __E000H */
 135 #undef SET_ENTRY_POINT
 136
 137     /* Force loading of some dlls */
 138     LoadLibrary16( "system.drv" );
 139     LoadLibrary16( "comm.drv" );
 140
 141     return TRUE;
 142 }
 143
 144 /***********************************************************************
 145  *         GetVersion   (KERNEL.3)
 146  */
 147 DWORD WINAPI GetVersion16(void)
 148 {
 149     static WORD dosver, winver;
 150
 151     if (!dosver)  /* not determined yet */
 152     {
 153         RTL_OSVERSIONINFOEXW info;
 154
 155         info.dwOSVersionInfoSize = sizeof(info);
 156         if (RtlGetVersion( &info )) return 0;
 157
 158         if (info.dwMajorVersion <= 3)
 159             winver = MAKEWORD( info.dwMajorVersion, info.dwMinorVersion );
 160         else
 161             winver = MAKEWORD( 3, 95 );
 162
 163         switch(info.dwPlatformId)
 164         {
 165         case VER_PLATFORM_WIN32s:
 166             switch(MAKELONG( info.dwMinorVersion, info.dwMajorVersion ))
 167             {
 168             case 0x0200:
 169                 dosver = 0x0303;  /* DOS 3.3 for Windows 2.0 */
 170                 break;
 171             case 0x0300:
 172                 dosver = 0x0500;  /* DOS 5.0 for Windows 3.0 */
 173                 break;
 174             default:
 175                 dosver = 0x0616;  /* DOS 6.22 for Windows 3.1 and later */
 176                 break;
 177             }
 178             break;
 179         case VER_PLATFORM_WIN32_WINDOWS:
 180             /* DOS 8.0 for WinME, 7.0 for Win95/98 */
 181             if (info.dwMinorVersion >= 90) dosver = 0x0800;
 182             else dosver = 0x0700;
 183             break;
 184         case VER_PLATFORM_WIN32_NT:
 185             dosver = 0x0500;  /* always DOS 5.0 for NT */
 186             break;
 187         }
 188         TRACE( "DOS %d.%02d Win %d.%02d\n",
 189                HIBYTE(dosver), LOBYTE(dosver), LOBYTE(winver), HIBYTE(winver) );
 190     }
 191     return MAKELONG( winver, dosver );
 192 }
 193
 194 /***********************************************************************
 195  *              Reserved1 (KERNEL.77)
 196  */
 197 SEGPTR WINAPI KERNEL_AnsiNext16(SEGPTR current)
 198 {
 199     return (*(char *)MapSL(current)) ? current + 1 : current;
 200 }
 201
 202 /***********************************************************************
 203  *              Reserved2(KERNEL.78)
 204  */
 205 SEGPTR WINAPI KERNEL_AnsiPrev16( SEGPTR start, SEGPTR current )
 206 {
 207     return (current==start)?start:current-1;
 208 }
 209
 210 /***********************************************************************
 211  *              Reserved3 (KERNEL.79)
 212  */
 213 SEGPTR WINAPI KERNEL_AnsiUpper16( SEGPTR strOrChar )
 214 {
 215     /* uppercase only one char if strOrChar < 0x10000 */
 216     if (HIWORD(strOrChar))
 217     {
 218         char *s = MapSL(strOrChar);
 219         while (*s)
 220         {
 221             *s = toupper(*s);
 222             s++;
 223         }
 224         return strOrChar;
 225     }
 226     else return toupper((char)strOrChar);
 227 }
 228
 229 /***********************************************************************
 230  *              Reserved4 (KERNEL.80)
 231  */
 232 SEGPTR WINAPI KERNEL_AnsiLower16( SEGPTR strOrChar )
 233 {
 234     /* lowercase only one char if strOrChar < 0x10000 */
 235     if (HIWORD(strOrChar))
 236     {
 237         char *s = MapSL(strOrChar);
 238         while (*s)
 239         {
 240             *s = tolower(*s);
 241             s++;
 242         }
 243         return strOrChar;
 244     }
 245     else return tolower((char)strOrChar);
 246 }
 247
 248 /***********************************************************************
 249  *              Reserved5 (KERNEL.87)
 250  */
 251 INT16 WINAPI KERNEL_lstrcmp16( LPCSTR str1, LPCSTR str2 )
 252 {
 253     return (INT16)strcmp( str1, str2 );
 254 }
 255
 256 /***********************************************************************
 257  *           lstrcpy   (KERNEL.88)
 258  */
 259 SEGPTR WINAPI lstrcpy16( SEGPTR dst, LPCSTR src )
 260 {
 261     if (!lstrcpyA( MapSL(dst), src )) dst = 0;
 262     return dst;
 263 }
 264
 265 /***********************************************************************
 266  *           lstrcat   (KERNEL.89)
 267  */
 268 SEGPTR WINAPI lstrcat16( SEGPTR dst, LPCSTR src )
 269 {
 270     /* Windows does not check for NULL pointers here, so we don't either */
 271     strcat( MapSL(dst), src );
 272     return dst;
 273 }
 274
 275 /***********************************************************************
 276  *           lstrlen   (KERNEL.90)
 277  */
 278 INT16 WINAPI lstrlen16( LPCSTR str )
 279 {
 280     return (INT16)lstrlenA( str );
 281 }
 282
 283 /***********************************************************************
 284  *           OutputDebugString   (KERNEL.115)
 285  */
 286 void WINAPI OutputDebugString16( LPCSTR str )
 287 {
 288     OutputDebugStringA( str );
 289 }
 290
 291 /***********************************************************************
 292  *          GetWinFlags   (KERNEL.132)
 293  */
 294 DWORD WINAPI GetWinFlags16(void)
 295 {
 296     static const long cpuflags[5] = { WF_CPU086, WF_CPU186, WF_CPU286, WF_CPU386, WF_CPU486 };
 297     SYSTEM_INFO si;
 298     OSVERSIONINFOA ovi;
 299     DWORD result;
 300
 301     GetSystemInfo(&si);
 302
 303     /* There doesn't seem to be any Pentium flag.  */
 304     result = cpuflags[min(si.wProcessorLevel, 4)] | WF_ENHANCED | WF_PMODE | WF_80x87 | WF_PAGING;
 305     if (si.wProcessorLevel >= 4) result |= WF_HASCPUID;
 306     ovi.dwOSVersionInfoSize = sizeof(ovi);
 307     GetVersionExA(&ovi);
 308     if (ovi.dwPlatformId == VER_PLATFORM_WIN32_NT)
 309         result |= WF_WIN32WOW; /* undocumented WF_WINNT */
 310     return result;
 311 }
 312
 313 /***********************************************************************
 314  *         GetVersionEx   (KERNEL.149)
 315  */
 316 BOOL16 WINAPI GetVersionEx16(OSVERSIONINFO16 *v)
 317 {
 318     OSVERSIONINFOA info;
 319
 320     if (v->dwOSVersionInfoSize < sizeof(OSVERSIONINFO16))
 321     {
 322         WARN("wrong OSVERSIONINFO size from app\n");
 323         return FALSE;
 324     }
 325
 326     info.dwOSVersionInfoSize = sizeof(info);
 327     if (!GetVersionExA( &info )) return FALSE;
 328
 329     v->dwMajorVersion = info.dwMajorVersion;
 330     v->dwMinorVersion = info.dwMinorVersion;
 331     v->dwBuildNumber  = info.dwBuildNumber;
 332     v->dwPlatformId   = info.dwPlatformId;
 333     strcpy( v->szCSDVersion, info.szCSDVersion );
 334     return TRUE;
 335 }
 336
 337 /***********************************************************************
 338  *           DebugBreak   (KERNEL.203)
 339  */
 340 void WINAPI DebugBreak16( CONTEXT *context )
 341 {
 342     EXCEPTION_RECORD rec;
 343
 344     rec.ExceptionCode    = EXCEPTION_BREAKPOINT;
 345     rec.ExceptionFlags   = 0;
 346     rec.ExceptionRecord  = NULL;
 347     rec.ExceptionAddress = (LPVOID)context->Eip;
 348     rec.NumberParameters = 0;
 349     NtRaiseException( &rec, context, TRUE );
 350 }
 351
 352 /***********************************************************************
 353  *           K329                    (KERNEL.329)
 354  *
 355  * TODO:
 356  * Should fill lpBuffer only if DBO_BUFFERFILL has been set by SetWinDebugInfo()
 357  */
 358 void WINAPI DebugFillBuffer(LPSTR lpBuffer, WORD wBytes)
 359 {
 360     memset(lpBuffer, 0xf9 /* DBGFILL_BUFFER */, wBytes);
 361 }
 362
 363 /***********************************************************************
 364  *           DiagQuery                          (KERNEL.339)
 365  *
 366  * returns TRUE if Win called with "/b" (bootlog.txt)
 367  */
 368 BOOL16 WINAPI DiagQuery16(void)
 369 {
 370     return FALSE;
 371 }
 372
 373 /***********************************************************************
 374  *           DiagOutput                         (KERNEL.340)
 375  *
 376  * writes a debug string into <windir>\bootlog.txt
 377  */
 378 void WINAPI DiagOutput16(LPCSTR str)
 379 {
 380     /* FIXME */
 381     TRACE("DIAGOUTPUT:%s\n", debugstr_a(str));
 382 }
 383
 384 /***********************************************************************
 385  *           hmemcpy   (KERNEL.348)
 386  */
 387 void WINAPI hmemcpy16( LPVOID dst, LPCVOID src, LONG count )
 388 {
 389     memcpy( dst, src, count );
 390 }
 391
 392 /***********************************************************************
 393  *           lstrcpyn   (KERNEL.353)
 394  */
 395 SEGPTR WINAPI lstrcpyn16( SEGPTR dst, LPCSTR src, INT16 n )
 396 {
 397     lstrcpynA( MapSL(dst), src, n );
 398     return dst;
 399 }
 400
 401 /***********************************************************************
 402  *           lstrcatn   (KERNEL.352)
 403  */
 404 SEGPTR WINAPI lstrcatn16( SEGPTR dst, LPCSTR src, INT16 n )
 405 {
 406     LPSTR p = MapSL(dst);
 407     LPSTR start = p;
 408
 409     while (*p) p++;
 410     if ((n -= (p - start)) <= 0) return dst;
 411     lstrcpynA( p, src, n );
 412     return dst;
 413 }
 414
 415 #if 0  /* Not used at this time. This is here for documentation only */
 416
 417 /* WINDEBUGINFO flags values */
 418 #define WDI_OPTIONS         0x0001
 419 #define WDI_FILTER          0x0002
 420 #define WDI_ALLOCBREAK      0x0004
 421
 422 /* dwOptions values */
 423 #define DBO_CHECKHEAP       0x0001
 424 #define DBO_BUFFERFILL      0x0004
 425 #define DBO_DISABLEGPTRAPPING 0x0010
 426 #define DBO_CHECKFREE       0x0020
 427
 428 #define DBO_SILENT          0x8000
 429
 430 #define DBO_TRACEBREAK      0x2000
 431 #define DBO_WARNINGBREAK    0x1000
 432 #define DBO_NOERRORBREAK    0x0800
 433 #define DBO_NOFATALBREAK    0x0400
 434 #define DBO_INT3BREAK       0x0100
 435
 436 /* DebugOutput flags values */
 437 #define DBF_TRACE           0x0000
 438 #define DBF_WARNING         0x4000
 439 #define DBF_ERROR           0x8000
 440 #define DBF_FATAL           0xc000
 441
 442 /* dwFilter values */
 443 #define DBF_KERNEL          0x1000
 444 #define DBF_KRN_MEMMAN      0x0001
 445 #define DBF_KRN_LOADMODULE  0x0002
 446 #define DBF_KRN_SEGMENTLOAD 0x0004
 447 #define DBF_USER            0x0800
 448 #define DBF_GDI             0x0400
 449 #define DBF_MMSYSTEM        0x0040
 450 #define DBF_PENWIN          0x0020
 451 #define DBF_APPLICATION     0x0008
 452 #define DBF_DRIVER          0x0010
 453
 454 #endif /* NOLOGERROR */
 455
 456 /***********************************************************************
 457  *          GetWinDebugInfo   (KERNEL.355)
 458  */
 459 BOOL16 WINAPI GetWinDebugInfo16(WINDEBUGINFO16 *lpwdi, UINT16 flags)
 460 {
 461     FIXME("(%8lx,%d): stub returning 0\n",
 462           (unsigned long)lpwdi, flags);
 463     /* 0 means not in debugging mode/version */
 464     /* Can this type of debugging be used in wine ? */
 465     /* Constants: WDI_OPTIONS WDI_FILTER WDI_ALLOCBREAK */
 466     return 0;
 467 }
 468
 469 /***********************************************************************
 470  *          SetWinDebugInfo   (KERNEL.356)
 471  */
 472 BOOL16 WINAPI SetWinDebugInfo16(WINDEBUGINFO16 *lpwdi)
 473 {
 474     FIXME("(%8lx): stub returning 0\n", (unsigned long)lpwdi);
 475     /* 0 means not in debugging mode/version */
 476     /* Can this type of debugging be used in wine ? */
 477     /* Constants: WDI_OPTIONS WDI_FILTER WDI_ALLOCBREAK */
 478     return 0;
 479 }
 480
 481 /***********************************************************************
 482  *           UnicodeToAnsi   (KERNEL.434)
 483  */
 484 INT16 WINAPI UnicodeToAnsi16( LPCWSTR src, LPSTR dst, INT16 codepage )
 485 {
 486     if ( codepage == -1 ) codepage = CP_ACP;
 487     return WideCharToMultiByte( codepage, 0, src, -1, dst, 0x7fffffff, NULL, NULL );
 488 }
 489
 490 /***********************************************************************
 491  *       VWin32_EventCreate     (KERNEL.442)
 492  */
 493 HANDLE WINAPI VWin32_EventCreate(VOID)
 494 {
 495     HANDLE hEvent = CreateEventW( NULL, FALSE, 0, NULL );
 496     return ConvertToGlobalHandle( hEvent );
 497 }
 498
 499 /***********************************************************************
 500  *       VWin32_EventDestroy    (KERNEL.443)
 501  */
 502 VOID WINAPI VWin32_EventDestroy(HANDLE event)
 503 {
 504     CloseHandle( event );
 505 }
 506
 507 /***********************************************************************
 508  *       VWin32_EventWait       (KERNEL.450)
 509  */
 510 VOID WINAPI VWin32_EventWait(HANDLE event)
 511 {
 512     DWORD mutex_count;
 513
 514     ReleaseThunkLock( &mutex_count );
 515     WaitForSingleObject( event, INFINITE );
 516     RestoreThunkLock( mutex_count );
 517 }
 518
 519 /***********************************************************************
 520  *       VWin32_EventSet        (KERNEL.451)
 521  *       KERNEL_479             (KERNEL.479)
 522  */
 523 VOID WINAPI VWin32_EventSet(HANDLE event)
 524 {
 525     SetEvent( event );
 526 }
 527
 528 /***********************************************************************
 529  *           GetProcAddress32                   (KERNEL.453)
 530  */
 531 FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
 532 {
 533     /* FIXME: we used to disable snoop when returning proc for Win16 subsystem */
 534     return GetProcAddress( hModule, function );
 535 }
 536
 537 /***********************************************************************
 538  *           CreateW32Event    (KERNEL.457)
 539  */
 540 HANDLE WINAPI CreateW32Event( BOOL manual_reset, BOOL initial_state )
 541 {
 542     return CreateEventW( NULL, manual_reset, initial_state, NULL );
 543 }
 544
 545 /***********************************************************************
 546  *           SetW32Event (KERNEL.458)
 547  */
 548 BOOL WINAPI SetW32Event( HANDLE handle )
 549 {
 550     return SetEvent( handle );
 551 }
 552
 553 /***********************************************************************
 554  *           ResetW32Event (KERNEL.459)
 555  */
 556 BOOL WINAPI ResetW32Event( HANDLE handle )
 557 {
 558     return ResetEvent( handle );
 559 }
 560
 561 /***********************************************************************
 562  *           WaitForSingleObject   (KERNEL.460)
 563  */
 564 DWORD WINAPI WaitForSingleObject16( HANDLE handle, DWORD timeout )
 565 {
 566     DWORD retval, mutex_count;
 567
 568     ReleaseThunkLock( &mutex_count );
 569     retval = WaitForSingleObject( handle, timeout );
 570     RestoreThunkLock( mutex_count );
 571     return retval;
 572 }
 573
 574 /***********************************************************************
 575  *           WaitForMultipleObjects   (KERNEL.461)
 576  */
 577 DWORD WINAPI WaitForMultipleObjects16( DWORD count, const HANDLE *handles,
 578                                        BOOL wait_all, DWORD timeout )
 579 {
 580     DWORD retval, mutex_count;
 581
 582     ReleaseThunkLock( &mutex_count );
 583     retval = WaitForMultipleObjectsEx( count, handles, wait_all, timeout, FALSE );
 584     RestoreThunkLock( mutex_count );
 585     return retval;
 586 }
 587
 588 /***********************************************************************
 589  *              GetCurrentThreadId (KERNEL.462)
 590  */
 591 DWORD WINAPI GetCurrentThreadId16(void)
 592 {
 593     return GetCurrentThreadId();
 594 }
 595
 596 /***********************************************************************
 597  *           ExitProcess   (KERNEL.466)
 598  */
 599 void WINAPI ExitProcess16( WORD status )
 600 {
 601     DWORD count;
 602     ReleaseThunkLock( &count );
 603     ExitProcess( status );
 604 }
 605
 606 /***********************************************************************
 607  *              GetCurrentProcessId (KERNEL.471)
 608  */
 609 DWORD WINAPI GetCurrentProcessId16(void)
 610 {
 611     return GetCurrentProcessId();
 612 }
 613
 614 /*********************************************************************
 615  *           CloseW32Handle (KERNEL.474)
 616  */
 617 BOOL WINAPI CloseW32Handle( HANDLE handle )
 618 {
 619     return CloseHandle( handle );
 620 }
 621
 622 /***********************************************************************
 623  *           ConvertToGlobalHandle   (KERNEL.476)
 624  */
 625 HANDLE WINAPI ConvertToGlobalHandle16( HANDLE handle )
 626 {
 627     return ConvertToGlobalHandle( handle );
 628 }
 629
 630 /*********************************************************************
 631  *           MapProcessHandle   (KERNEL.483)
 632  */
 633 DWORD WINAPI MapProcessHandle( HANDLE hProcess )
 634 {
 635     return GetProcessId( hProcess );
 636 }
 637
 638 /***********************************************************************
 639  *           SetProcessDword    (KERNEL.484)
 640  * 'Of course you cannot directly access Windows internal structures'
 641  */
 642 void WINAPI SetProcessDword16( DWORD dwProcessID, INT offset, DWORD value )
 643 {
 644     TRACE("(%d, %d)\n", dwProcessID, offset );
 645
 646     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 647     {
 648         ERR("%d: process %x not accessible\n", offset, dwProcessID);
 649         return;
 650     }
 651
 652     switch ( offset )
 653     {
 654     case GPD_APP_COMPAT_FLAGS:
 655     case GPD_LOAD_DONE_EVENT:
 656     case GPD_HINSTANCE16:
 657     case GPD_WINDOWS_VERSION:
 658     case GPD_THDB:
 659     case GPD_PDB:
 660     case GPD_STARTF_SHELLDATA:
 661     case GPD_STARTF_HOTKEY:
 662     case GPD_STARTF_SHOWWINDOW:
 663     case GPD_STARTF_SIZE:
 664     case GPD_STARTF_POSITION:
 665     case GPD_STARTF_FLAGS:
 666     case GPD_PARENT:
 667     case GPD_FLAGS:
 668         ERR("Not allowed to modify offset %d\n", offset );
 669         break;
 670     case GPD_USERDATA:
 671         process_dword = value;
 672         break;
 673     default:
 674         ERR("Unknown offset %d\n", offset );
 675         break;
 676     }
 677 }
 678
 679 /***********************************************************************
 680  *           GetProcessDword    (KERNEL.485)
 681  * 'Of course you cannot directly access Windows internal structures'
 682  */
 683 DWORD WINAPI GetProcessDword16( DWORD dwProcessID, INT offset )
 684 {
 685     DWORD               x, y;
 686     STARTUPINFOW        siw;
 687
 688     TRACE("(%d, %d)\n", dwProcessID, offset );
 689
 690     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 691     {
 692         ERR("%d: process %x not accessible\n", offset, dwProcessID);
 693         return 0;
 694     }
 695
 696     switch ( offset )
 697     {
 698     case GPD_APP_COMPAT_FLAGS:
 699         return GetAppCompatFlags16(0);
 700     case GPD_LOAD_DONE_EVENT:
 701         return 0;
 702     case GPD_HINSTANCE16:
 703         return GetTaskDS16();
 704     case GPD_WINDOWS_VERSION:
 705         return GetExeVersion16();
 706     case GPD_THDB:
 707         return (DWORD_PTR)NtCurrentTeb() - 0x10 /* FIXME */;
 708     case GPD_PDB:
 709         return (DWORD_PTR)NtCurrentTeb()->Peb; /* FIXME: truncating a pointer */
 710     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 711         GetStartupInfoW(&siw);
 712         return HandleToULong(siw.hStdOutput);
 713     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 714         GetStartupInfoW(&siw);
 715         return HandleToULong(siw.hStdInput);
 716     case GPD_STARTF_SHOWWINDOW:
 717         GetStartupInfoW(&siw);
 718         return siw.wShowWindow;
 719     case GPD_STARTF_SIZE:
 720         GetStartupInfoW(&siw);
 721         x = siw.dwXSize;
 722         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 723         y = siw.dwYSize;
 724         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 725         return MAKELONG( x, y );
 726     case GPD_STARTF_POSITION:
 727         GetStartupInfoW(&siw);
 728         x = siw.dwX;
 729         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 730         y = siw.dwY;
 731         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 732         return MAKELONG( x, y );
 733     case GPD_STARTF_FLAGS:
 734         GetStartupInfoW(&siw);
 735         return siw.dwFlags;
 736     case GPD_PARENT:
 737         return 0;
 738     case GPD_FLAGS:
 739         return GetProcessFlags(0);
 740     case GPD_USERDATA:
 741         return process_dword;
 742     default:
 743         ERR("Unknown offset %d\n", offset );
 744         return 0;
 745     }
 746 }
 747
 748 /***********************************************************************
 749  *           FreeLibrary32 (KERNEL.486)
 750  */
 751 BOOL WINAPI FreeLibrary32_16( HINSTANCE module )
 752 {
 753     return FreeLibrary( module );
 754 }
 755
 756 /***********************************************************************
 757  *              GetModuleFileName32     (KERNEL.487)
 758  */
 759 DWORD WINAPI GetModuleFileName32_16( HMODULE module, LPSTR buffer, DWORD size )
 760 {
 761     return GetModuleFileNameA( module, buffer, size );
 762 }
 763
 764 /***********************************************************************
 765  *              GetModuleHandle32        (KERNEL.488)
 766  */
 767 HMODULE WINAPI GetModuleHandle32_16(LPCSTR module)
 768 {
 769     return GetModuleHandleA( module );
 770 }
 771
 772 /***********************************************************************
 773  *              RegisterServiceProcess (KERNEL.491)
 774  */
 775 DWORD WINAPI RegisterServiceProcess16( DWORD dwProcessId, DWORD dwType )
 776 {
 777     return 1; /* success */
 778 }
 779
 780 /***********************************************************************
 781  *           WaitForMultipleObjectsEx   (KERNEL.495)
 782  */
 783 DWORD WINAPI WaitForMultipleObjectsEx16( DWORD count, const HANDLE *handles,
 784                                          BOOL wait_all, DWORD timeout, BOOL alertable )
 785 {
 786     DWORD retval, mutex_count;
 787
 788     ReleaseThunkLock( &mutex_count );
 789     retval = WaitForMultipleObjectsEx( count, handles, wait_all, timeout, alertable );
 790     RestoreThunkLock( mutex_count );
 791     return retval;
 792 }
 793
 794 /**********************************************************************
 795  * VWin32_BoostThreadGroup   (KERNEL.535)
 796  */
 797 VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
 798 {
 799     FIXME("(0x%08x,%d): stub\n", threadId, boost);
 800 }
 801
 802
 803 /**********************************************************************
 804  * VWin32_BoostThreadStatic   (KERNEL.536)
 805  */
 806 VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
 807 {
 808     FIXME("(0x%08x,%d): stub\n", threadId, boost);
 809 }
 810
 811 /***********************************************************************
 812  *              EnableDos (KERNEL.41)
 813  *              DisableDos (KERNEL.42)
 814  *              GetLastDiskChange (KERNEL.98)
 815  *              ValidateCodeSegments (KERNEL.100)
 816  *              KbdRst (KERNEL.123)
 817  *              EnableKernel (KERNEL.124)
 818  *              DisableKernel (KERNEL.125)
 819  *              ValidateFreeSpaces (KERNEL.200)
 820  *              K237 (KERNEL.237)
 821  *              BUNNY_351 (KERNEL.351)
 822  *              PIGLET_361 (KERNEL.361)
 823  *
 824  * Entry point for kernel functions that do nothing.
 825  */
 826 LONG WINAPI KERNEL_nop(void)
 827 {
 828     return 0;
 829 }
 830
 831 /***********************************************************************
 832  *           ToolHelpHook                             (KERNEL.341)
 833  *      see "Undocumented Windows"
 834  */
 835 FARPROC16 WINAPI ToolHelpHook16(FARPROC16 func)
 836 {
 837     static FARPROC16 hook;
 838
 839     FIXME("(%p), stub.\n", func);
 840     return InterlockedExchangePointer( (void **)&hook, func );
 841 }
 842
 843 /* thunk for 16-bit CreateThread */
 844 struct thread_args
 845 {
 846     FARPROC16 proc;
 847     DWORD     param;
 848 };
 849
 850 static DWORD CALLBACK start_thread16( LPVOID threadArgs )
 851 {
 852     struct thread_args args = *(struct thread_args *)threadArgs;
 853     HeapFree( GetProcessHeap(), 0, threadArgs );
 854     return K32WOWCallback16( (DWORD)args.proc, args.param );
 855 }
 856
 857 /***********************************************************************
 858  *           CreateThread16   (KERNEL.441)
 859  */
 860 HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
 861                               FARPROC16 start, SEGPTR param,
 862                               DWORD flags, LPDWORD id )
 863 {
 864     struct thread_args *args = HeapAlloc( GetProcessHeap(), 0, sizeof(*args) );
 865     if (!args) return INVALID_HANDLE_VALUE;
 866     args->proc = start;
 867     args->param = param;
 868     return CreateThread( sa, stack, start_thread16, args, flags, id );
 869 }
 870
 871 /***********************************************************************
 872  *           _DebugOutput                    (KERNEL.328)
 873  */
 874 void WINAPIV _DebugOutput( WORD flags, LPCSTR spec, VA_LIST16 valist )
 875 {
 876     char caller[101];
 877
 878     /* Decode caller address */
 879     if (!GetModuleName16( GetExePtr(CURRENT_STACK16->cs), caller, sizeof(caller) ))
 880         sprintf( caller, "%04X:%04X", CURRENT_STACK16->cs, CURRENT_STACK16->ip );
 881
 882     /* FIXME: cannot use wvsnprintf16 from kernel */
 883     /* wvsnprintf16( temp, sizeof(temp), spec, valist ); */
 884
 885     /* Output */
 886     FIXME("%s %04x %s\n", caller, flags, debugstr_a(spec) );
 887 }