| /* |
| * Emulator thunks |
| * |
| * Copyright 1996, 1997 Alexandre Julliard |
| * Copyright 1998 Ulrich Weigand |
| */ |
| |
| #include <string.h> |
| #include "wine/winbase16.h" |
| #include "task.h" |
| #include "hook.h" |
| #include "callback.h" |
| #include "builtin16.h" |
| #include "user.h" |
| #include "heap.h" |
| #include "neexe.h" |
| #include "process.h" |
| #include "stackframe.h" |
| #include "win.h" |
| #include "flatthunk.h" |
| #include "mouse.h" |
| #include "keyboard.h" |
| #include "debugtools.h" |
| |
| DECLARE_DEBUG_CHANNEL(relay) |
| DECLARE_DEBUG_CHANNEL(system) |
| DECLARE_DEBUG_CHANNEL(thunk) |
| |
| |
| extern LONG CALLBACK CallTo16RegisterShort(const CONTEXT86 *context, INT offset); |
| extern LONG CALLBACK CallTo16RegisterLong(const CONTEXT86 *context, INT offset); |
| |
| /* List of the 16-bit callback functions. This list is used */ |
| /* by the build program to generate the file if1632/callto16.S */ |
| |
| /* ### start build ### */ |
| extern WORD CALLBACK THUNK_CallTo16_word_ (FARPROC16); |
| extern LONG CALLBACK THUNK_CallTo16_long_ (FARPROC16); |
| extern WORD CALLBACK THUNK_CallTo16_word_w (FARPROC16,WORD); |
| extern WORD CALLBACK THUNK_CallTo16_word_l (FARPROC16,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_l (FARPROC16,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_ww (FARPROC16,WORD,WORD); |
| extern WORD CALLBACK THUNK_CallTo16_word_wl (FARPROC16,WORD,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_ll (FARPROC16,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_ll (FARPROC16,LONG,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_www (FARPROC16,WORD,WORD,WORD); |
| extern WORD CALLBACK THUNK_CallTo16_word_wwl (FARPROC16,WORD,WORD,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_wlw (FARPROC16,WORD,LONG,WORD); |
| extern LONG CALLBACK THUNK_CallTo16_long_wwl (FARPROC16,WORD,WORD,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_lll (FARPROC16,LONG,LONG,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_llwl (FARPROC16,LONG,LONG,WORD,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_lwll (FARPROC16,LONG,WORD,LONG,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_lwww (FARPROC16,LONG,WORD,WORD,WORD); |
| extern WORD CALLBACK THUNK_CallTo16_word_wlww (FARPROC16,WORD,LONG,WORD,WORD); |
| extern WORD CALLBACK THUNK_CallTo16_word_wwll (FARPROC16,WORD,WORD,LONG,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_wwwl (FARPROC16,WORD,WORD,WORD,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_wwwl (FARPROC16,WORD,WORD,WORD,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_llll (FARPROC16,LONG,LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_llll (FARPROC16,LONG,LONG,LONG,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_wllwl(FARPROC16,WORD,LONG,LONG,WORD,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_lwwww(FARPROC16,LONG,WORD,WORD,WORD,WORD); |
| extern LONG CALLBACK THUNK_CallTo16_long_lwwll(FARPROC16,LONG,WORD,WORD,LONG,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_wwlll(FARPROC16,WORD,WORD,LONG,LONG,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_wwwww(FARPROC16,WORD,WORD,WORD,WORD,WORD); |
| extern WORD CALLBACK THUNK_CallTo16_word_lwlll(FARPROC16,LONG,WORD,LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_lwlll(FARPROC16,LONG,WORD,LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_lllll(FARPROC16,LONG,LONG,LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_llllll(FARPROC16,LONG,LONG,LONG,LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_lllllll(FARPROC16,LONG,LONG,LONG,LONG,LONG,LONG,LONG); |
| extern WORD CALLBACK THUNK_CallTo16_word_llwwlll(FARPROC16,LONG,LONG,WORD,WORD,LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_word_lwwlllll(FARPROC16,LONG,WORD,WORD,LONG,LONG, |
| LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_llllllll(FARPROC16,LONG,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_lllllllll(FARPROC16,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_llllllllll(FARPROC16,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_lllllllllll(FARPROC16,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG,LONG, |
| LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_llllllllllll(FARPROC16,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG,LONG, |
| LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_lwwllwlllllw(FARPROC16,LONG,WORD,WORD,LONG, |
| LONG,WORD,LONG,LONG,LONG,LONG, |
| LONG,WORD); |
| extern LONG CALLBACK THUNK_CallTo16_long_lllllllllllll(FARPROC16,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_llllllllllllll(FARPROC16,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG, |
| LONG); |
| extern LONG CALLBACK THUNK_CallTo16_word_lwwwwlwwwwllll(FARPROC16,LONG,WORD,WORD, |
| WORD,WORD,LONG,WORD,WORD, |
| WORD,WORD,LONG,LONG,LONG, |
| LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_lllllllllllllll(FARPROC16,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG, |
| LONG,LONG); |
| extern LONG CALLBACK THUNK_CallTo16_long_llllllllllllllll(FARPROC16,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG,LONG,LONG, |
| LONG,LONG,LONG); |
| /* ### stop build ### */ |
| |
| |
| typedef void (*RELAY)(); |
| |
| #include "pshpack1.h" |
| |
| typedef struct tagTHUNK |
| { |
| BYTE popl_eax; /* 0x58 popl %eax (return address)*/ |
| BYTE pushl_func; /* 0x68 pushl $proc */ |
| FARPROC proc WINE_PACKED; |
| BYTE pushl_eax; /* 0x50 pushl %eax */ |
| BYTE jmp; /* 0xe9 jmp relay (relative jump)*/ |
| RELAY relay WINE_PACKED; |
| struct tagTHUNK *next WINE_PACKED; |
| } THUNK; |
| |
| #include "poppack.h" |
| |
| #define DECL_THUNK(aname,aproc,arelay) \ |
| THUNK aname; \ |
| aname.popl_eax = 0x58; \ |
| aname.pushl_func = 0x68; \ |
| aname.proc = (FARPROC) (aproc); \ |
| aname.pushl_eax = 0x50; \ |
| aname.jmp = 0xe9; \ |
| aname.relay = (RELAY)((char *)(arelay) - (char *)(&(aname).next)); \ |
| aname.next = NULL; |
| |
| static THUNK *firstThunk = NULL; |
| |
| static BOOL WINAPI THUNK_WOWCallback16Ex( FARPROC16,DWORD,DWORD, |
| LPVOID,LPDWORD ); |
| static BOOL THUNK_ThunkletInit( void ); |
| |
| /* Callbacks function table for the emulator */ |
| static const CALLBACKS_TABLE CALLBACK_EmulatorTable = |
| { |
| (void *)CallTo16RegisterShort, /* CallRegisterShortProc */ |
| (void *)CallTo16RegisterLong, /* CallRegisterLongProc */ |
| (void *)THUNK_CallTo16_long_lwwll, /* CallDriverProc */ |
| (void *)THUNK_CallTo16_word_wwlll, /* CallDriverCallback */ |
| (void *)THUNK_CallTo16_word_wwlll, /* CallTimeFuncProc */ |
| (void *)THUNK_CallTo16_word_w, /* CallWindowsExitProc */ |
| (void *)THUNK_CallTo16_word_lwww, /* CallWordBreakProc */ |
| (void *)THUNK_CallTo16_word_ww, /* CallBootAppProc */ |
| (void *)THUNK_CallTo16_word_www, /* CallLoadAppSegProc */ |
| (void *)THUNK_CallTo16_word_www, /* CallLocalNotifyFunc */ |
| (void *)THUNK_CallTo16_word_www, /* CallResourceHandlerProc */ |
| (void *)THUNK_CallTo16_long_l, /* CallWOWCallbackProc */ |
| THUNK_WOWCallback16Ex, /* CallWOWCallback16Ex */ |
| (void *)THUNK_CallTo16_long_ll, /* CallUTProc */ |
| (void *)THUNK_CallTo16_long_l, /* CallASPIPostProc */ |
| (void *)THUNK_CallTo16_word_lwll, /* CallDrvControlProc */ |
| (void *)THUNK_CallTo16_word_lwlll, /* CallDrvEnableProc */ |
| (void *)THUNK_CallTo16_word_llll, /* CallDrvEnumDFontsProc */ |
| (void *)THUNK_CallTo16_word_lwll, /* CallDrvEnumObjProc */ |
| (void *)THUNK_CallTo16_word_lwwlllll, /* CallDrvOutputProc */ |
| (void *)THUNK_CallTo16_long_lwlll, /* CallDrvRealizeProc */ |
| (void *)THUNK_CallTo16_word_lwwwwlwwwwllll, /* CallDrvStretchBltProc */ |
| (void *)THUNK_CallTo16_long_lwwllwlllllw, /* CallDrvExtTextOutProc */ |
| (void *)THUNK_CallTo16_word_llwwlll, /* CallDrvGetCharWidth */ |
| (void *)THUNK_CallTo16_word_ww /* CallDrvAbortProc */ |
| }; |
| |
| const CALLBACKS_TABLE *Callbacks = &CALLBACK_EmulatorTable; |
| |
| CALLOUT_TABLE Callout = { 0 }; |
| |
| |
| /*********************************************************************** |
| * THUNK_Init |
| */ |
| BOOL THUNK_Init(void) |
| { |
| /* Initialize Thunklets */ |
| return THUNK_ThunkletInit(); |
| } |
| |
| /*********************************************************************** |
| * THUNK_Alloc |
| */ |
| static THUNK *THUNK_Alloc( FARPROC func, RELAY relay ) |
| { |
| THUNK *thunk = HeapAlloc( GetProcessHeap(), 0, sizeof(*thunk) ); |
| if (thunk) |
| { |
| thunk->popl_eax = 0x58; |
| thunk->pushl_func = 0x68; |
| thunk->proc = func; |
| thunk->pushl_eax = 0x50; |
| thunk->jmp = 0xe9; |
| thunk->relay = (RELAY)((char *)relay - (char *)(&thunk->next)); |
| thunk->next = firstThunk; |
| firstThunk = thunk; |
| } |
| return thunk; |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_Find |
| */ |
| static THUNK *THUNK_Find( FARPROC func ) |
| { |
| THUNK *thunk = firstThunk; |
| while (thunk && (thunk->proc != func)) thunk = thunk->next; |
| return thunk; |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_Free |
| */ |
| static void THUNK_Free( THUNK *thunk ) |
| { |
| if (HEAP_IsInsideHeap( GetProcessHeap(), 0, thunk )) |
| { |
| THUNK **prev = &firstThunk; |
| while (*prev && (*prev != thunk)) prev = &(*prev)->next; |
| if (*prev) |
| { |
| *prev = thunk->next; |
| HeapFree( GetProcessHeap(), 0, thunk ); |
| return; |
| } |
| } |
| ERR_(thunk)("invalid thunk addr %p\n", thunk ); |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_EnumObjects16 (GDI.71) |
| */ |
| INT16 WINAPI THUNK_EnumObjects16( HDC16 hdc, INT16 nObjType, |
| GOBJENUMPROC16 func, LPARAM lParam ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_ll ); |
| return EnumObjects16( hdc, nObjType, (GOBJENUMPROC16)&thunk, lParam ); |
| } |
| |
| |
| /************************************************************************* |
| * THUNK_EnumFonts16 (GDI.70) |
| */ |
| INT16 WINAPI THUNK_EnumFonts16( HDC16 hdc, LPCSTR lpFaceName, |
| FONTENUMPROC16 func, LPARAM lParam ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_llwl ); |
| return EnumFonts16( hdc, lpFaceName, (FONTENUMPROC16)&thunk, lParam ); |
| } |
| |
| /****************************************************************** |
| * THUNK_EnumMetaFile16 (GDI.175) |
| */ |
| BOOL16 WINAPI THUNK_EnumMetaFile16( HDC16 hdc, HMETAFILE16 hmf, |
| MFENUMPROC16 func, LPARAM lParam ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_wllwl ); |
| return EnumMetaFile16( hdc, hmf, (MFENUMPROC16)&thunk, lParam ); |
| } |
| |
| |
| /************************************************************************* |
| * THUNK_EnumFontFamilies16 (GDI.330) |
| */ |
| INT16 WINAPI THUNK_EnumFontFamilies16( HDC16 hdc, LPCSTR lpszFamily, |
| FONTENUMPROC16 func, LPARAM lParam ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_llwl ); |
| return EnumFontFamilies16(hdc, lpszFamily, (FONTENUMPROC16)&thunk, lParam); |
| } |
| |
| |
| /************************************************************************* |
| * THUNK_EnumFontFamiliesEx16 (GDI.613) |
| */ |
| INT16 WINAPI THUNK_EnumFontFamiliesEx16( HDC16 hdc, LPLOGFONT16 lpLF, |
| FONTENUMPROCEX16 func, LPARAM lParam, |
| DWORD reserved ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_llwl ); |
| return EnumFontFamiliesEx16( hdc, lpLF, (FONTENUMPROCEX16)&thunk, |
| lParam, reserved ); |
| } |
| |
| |
| /********************************************************************** |
| * THUNK_LineDDA16 (GDI.100) |
| */ |
| void WINAPI THUNK_LineDDA16( INT16 nXStart, INT16 nYStart, INT16 nXEnd, |
| INT16 nYEnd, LINEDDAPROC16 func, LPARAM lParam ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_wwl ); |
| LineDDA16( nXStart, nYStart, nXEnd, nYEnd, (LINEDDAPROC16)&thunk, lParam ); |
| } |
| |
| |
| /******************************************************************* |
| * THUNK_EnumWindows16 (USER.54) |
| */ |
| BOOL16 WINAPI THUNK_EnumWindows16( WNDENUMPROC16 func, LPARAM lParam ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_wl ); |
| return EnumWindows16( (WNDENUMPROC16)&thunk, lParam ); |
| } |
| |
| |
| /********************************************************************** |
| * THUNK_EnumChildWindows16 (USER.55) |
| */ |
| BOOL16 WINAPI THUNK_EnumChildWindows16( HWND16 parent, WNDENUMPROC16 func, |
| LPARAM lParam ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_wl ); |
| return EnumChildWindows16( parent, (WNDENUMPROC16)&thunk, lParam ); |
| } |
| |
| |
| /********************************************************************** |
| * THUNK_EnumTaskWindows16 (USER.225) |
| */ |
| BOOL16 WINAPI THUNK_EnumTaskWindows16( HTASK16 hTask, WNDENUMPROC16 func, |
| LPARAM lParam ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_wl ); |
| return EnumTaskWindows16( hTask, (WNDENUMPROC16)&thunk, lParam ); |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_EnumProps16 (USER.27) |
| */ |
| INT16 WINAPI THUNK_EnumProps16( HWND16 hwnd, PROPENUMPROC16 func ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_wlw ); |
| return EnumProps16( hwnd, (PROPENUMPROC16)&thunk ); |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_GrayString16 (USER.185) |
| */ |
| BOOL16 WINAPI THUNK_GrayString16( HDC16 hdc, HBRUSH16 hbr, |
| GRAYSTRINGPROC16 func, LPARAM lParam, |
| INT16 cch, INT16 x, INT16 y, |
| INT16 cx, INT16 cy ) |
| { |
| DECL_THUNK( thunk, func, THUNK_CallTo16_word_wlw ); |
| if (!func) |
| return GrayString16( hdc, hbr, NULL, lParam, cch, x, y, cx, cy ); |
| else |
| return GrayString16( hdc, hbr, (GRAYSTRINGPROC16)&thunk, lParam, cch, |
| x, y, cx, cy ); |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_SetWindowsHook16 (USER.121) |
| */ |
| FARPROC16 WINAPI THUNK_SetWindowsHook16( INT16 id, HOOKPROC16 proc ) |
| { |
| HINSTANCE16 hInst = FarGetOwner16( HIWORD(proc) ); |
| HTASK16 hTask = (id == WH_MSGFILTER) ? GetCurrentTask() : 0; |
| THUNK *thunk = THUNK_Alloc( (FARPROC16)proc, (RELAY)THUNK_CallTo16_long_wwl ); |
| if (!thunk) return 0; |
| return (FARPROC16)SetWindowsHookEx16( id, (HOOKPROC16)thunk, hInst, hTask); |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_UnhookWindowsHook16 (USER.234) |
| */ |
| BOOL16 WINAPI THUNK_UnhookWindowsHook16( INT16 id, HOOKPROC16 proc ) |
| { |
| BOOL16 ret; |
| THUNK *thunk = THUNK_Find( (FARPROC16)proc ); |
| if (!thunk) return FALSE; |
| ret = UnhookWindowsHook16( id, (HOOKPROC16)thunk ); |
| THUNK_Free( thunk ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_SetWindowsHookEx16 (USER.291) |
| */ |
| HHOOK WINAPI THUNK_SetWindowsHookEx16( INT16 id, HOOKPROC16 proc, |
| HINSTANCE16 hInst, HTASK16 hTask ) |
| { |
| THUNK *thunk = THUNK_Alloc( (FARPROC16)proc, (RELAY)THUNK_CallTo16_long_wwl ); |
| if (!thunk) return 0; |
| return SetWindowsHookEx16( id, (HOOKPROC16)thunk, hInst, hTask ); |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_UnhookWindowHookEx16 (USER.292) |
| */ |
| BOOL16 WINAPI THUNK_UnhookWindowsHookEx16( HHOOK hhook ) |
| { |
| THUNK *thunk = (THUNK *)HOOK_GetProc16( hhook ); |
| BOOL16 ret = UnhookWindowsHookEx16( hhook ); |
| if (thunk) THUNK_Free( thunk ); |
| return ret; |
| } |
| |
| |
| |
| static FARPROC16 defDCHookProc = NULL; |
| |
| /*********************************************************************** |
| * THUNK_SetDCHook (GDI.190) |
| */ |
| BOOL16 WINAPI THUNK_SetDCHook( HDC16 hdc, FARPROC16 proc, DWORD dwHookData ) |
| { |
| THUNK *thunk, *oldThunk; |
| |
| if (!defDCHookProc) /* Get DCHook Win16 entry point */ |
| { |
| HMODULE16 hModule = GetModuleHandle16( "USER" ); |
| NE_MODULE *pModule = NE_GetPtr( hModule ); |
| |
| if ( pModule && (pModule->flags & NE_FFLAGS_BUILTIN) ) |
| defDCHookProc = NE_GetEntryPoint( hModule, 362 ); |
| else |
| defDCHookProc = (FARPROC16)-1; |
| } |
| |
| if (!proc) |
| thunk = NULL; |
| else if (proc != defDCHookProc) |
| { |
| thunk = THUNK_Alloc( proc, (RELAY)THUNK_CallTo16_word_wwll ); |
| if (!thunk) return FALSE; |
| } |
| else thunk = (THUNK *)DCHook16; |
| |
| /* Free the previous thunk */ |
| GetDCHook( hdc, (FARPROC16 *)&oldThunk ); |
| if (oldThunk && (oldThunk != (THUNK *)DCHook16)) THUNK_Free( oldThunk ); |
| |
| return SetDCHook( hdc, (FARPROC16)thunk, dwHookData ); |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_GetDCHook (GDI.191) |
| */ |
| DWORD WINAPI THUNK_GetDCHook( HDC16 hdc, FARPROC16 *phookProc ) |
| { |
| THUNK *thunk = NULL; |
| DWORD ret = GetDCHook( hdc, (FARPROC16 *)&thunk ); |
| if (thunk) |
| { |
| if (thunk == (THUNK *)DCHook16) |
| { |
| /* Note: we can only get here when running built-in USER */ |
| |
| if (!defDCHookProc) /* Get DCHook Win16 entry point */ |
| defDCHookProc = NE_GetEntryPoint(GetModuleHandle16("USER"),362); |
| |
| *phookProc = defDCHookProc; |
| } |
| else *phookProc = thunk->proc; |
| } |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_SetTaskSignalProc (KERNEL.38) |
| */ |
| FARPROC16 WINAPI THUNK_SetTaskSignalProc( HTASK16 hTask, FARPROC16 proc ) |
| { |
| THUNK *thunk = THUNK_Alloc( proc, (RELAY)THUNK_CallTo16_word_wwwww ); |
| if ( !thunk ) return NULL; |
| |
| thunk = (THUNK*)SetTaskSignalProc( hTask, (FARPROC16)thunk ); |
| if ( !thunk ) return NULL; |
| |
| proc = thunk->proc; |
| THUNK_Free( thunk ); |
| return proc; |
| } |
| |
| /*********************************************************************** |
| * THUNK_CreateThread16 (KERNEL.441) |
| */ |
| static DWORD CALLBACK THUNK_StartThread16( LPVOID threadArgs ) |
| { |
| FARPROC16 start = ((FARPROC16 *)threadArgs)[0]; |
| DWORD param = ((DWORD *)threadArgs)[1]; |
| HeapFree( GetProcessHeap(), 0, threadArgs ); |
| |
| return THUNK_CallTo16_long_l( start, param ); |
| } |
| HANDLE WINAPI THUNK_CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack, |
| FARPROC16 start, SEGPTR param, |
| DWORD flags, LPDWORD id ) |
| { |
| DWORD *threadArgs = HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD) ); |
| if (!threadArgs) return INVALID_HANDLE_VALUE; |
| threadArgs[0] = (DWORD)start; |
| threadArgs[1] = (DWORD)param; |
| |
| return CreateThread( sa, stack, THUNK_StartThread16, threadArgs, flags, id ); |
| } |
| |
| /*********************************************************************** |
| * THUNK_WOWCallback16Ex (WOW32.3)(KERNEL32.55) |
| * Generic thunking routine to call 16 bit functions from 32bit code. |
| * |
| * RETURNS |
| * TRUE if the call was done |
| */ |
| static BOOL WINAPI THUNK_WOWCallback16Ex( |
| FARPROC16 proc, /* [in] 16bit function to call */ |
| DWORD dwFlags, /* [in] flags (WCB_*) */ |
| DWORD cbArgs, /* [in] number of arguments */ |
| LPVOID xargs, /* [in/out] arguments */ |
| LPDWORD pdwret /* [out] return value of the 16bit call */ |
| ) { |
| LPDWORD args = (LPDWORD)xargs; |
| DWORD ret,i; |
| |
| TRACE_(relay)("(%p,0x%08lx,%ld,%p,%p)\n", |
| proc,dwFlags,cbArgs,xargs,pdwret |
| ); |
| if (dwFlags == WCB16_CDECL) { |
| /* swap the arguments */ |
| args = HeapAlloc(GetProcessHeap(),0,cbArgs*sizeof(DWORD)); |
| for (i=0;i<cbArgs;i++) |
| args[i] = ((DWORD*)xargs)[cbArgs-i-1]; |
| } |
| switch (cbArgs) { |
| case 0: ret = THUNK_CallTo16_long_(proc);break; |
| case 1: ret = THUNK_CallTo16_long_l(proc,args[0]);break; |
| case 2: ret = THUNK_CallTo16_long_ll(proc,args[0],args[1]);break; |
| case 3: ret = THUNK_CallTo16_long_lll(proc,args[0],args[1],args[2]);break; |
| case 4: ret = THUNK_CallTo16_long_llll(proc,args[0],args[1],args[2],args[3]); |
| break; |
| case 5: ret = THUNK_CallTo16_long_lllll(proc,args[0],args[1],args[2],args[3], |
| args[4] |
| ); |
| break; |
| case 6: ret = THUNK_CallTo16_long_llllll(proc,args[0],args[1],args[2],args[3], |
| args[4],args[5] |
| ); |
| break; |
| case 7: ret = THUNK_CallTo16_long_lllllll(proc,args[0],args[1],args[2],args[3], |
| args[4],args[5],args[6] |
| ); |
| break; |
| case 8: ret = THUNK_CallTo16_long_llllllll(proc,args[0],args[1],args[2],args[3], |
| args[4],args[5],args[6],args[7] |
| ); |
| break; |
| case 9: ret = THUNK_CallTo16_long_lllllllll(proc,args[0],args[1],args[2],args[3], |
| args[4],args[5],args[6],args[7],args[8] |
| ); |
| break; |
| case 10:ret = THUNK_CallTo16_long_llllllllll(proc,args[0],args[1],args[2],args[3], |
| args[4],args[5],args[6],args[7],args[8],args[9] |
| ); |
| break; |
| case 11:ret = THUNK_CallTo16_long_lllllllllll(proc,args[0],args[1],args[2], |
| args[3],args[4],args[5],args[6],args[7],args[8],args[9],args[10] |
| ); |
| break; |
| case 12:ret = THUNK_CallTo16_long_llllllllllll(proc,args[0],args[1],args[2], |
| args[3],args[4],args[5],args[6],args[7],args[8],args[9], |
| args[10],args[11] |
| ); |
| break; |
| case 13:ret = THUNK_CallTo16_long_lllllllllllll(proc,args[0],args[1],args[2], |
| args[3],args[4],args[5],args[6],args[7],args[8],args[9], |
| args[10],args[11],args[12] |
| ); |
| break; |
| case 14:ret = THUNK_CallTo16_long_llllllllllllll(proc,args[0],args[1],args[2], |
| args[3],args[4],args[5],args[6],args[7],args[8],args[9], |
| args[10],args[11],args[12],args[13] |
| ); |
| break; |
| case 15:ret = THUNK_CallTo16_long_lllllllllllllll(proc,args[0],args[1],args[2], |
| args[3],args[4],args[5],args[6],args[7],args[8],args[9], |
| args[10],args[11],args[12],args[13],args[14] |
| ); |
| break; |
| case 16:ret = THUNK_CallTo16_long_llllllllllllllll(proc,args[0],args[1],args[2], |
| args[3],args[4],args[5],args[6],args[7],args[8],args[9], |
| args[10],args[11],args[12],args[13],args[14],args[15] |
| ); |
| break; |
| default: |
| ERR_(thunk)("%ld arguments not supported.\n",cbArgs); |
| if (dwFlags == WCB16_CDECL) |
| HeapFree(GetProcessHeap(),0,args); |
| return FALSE; |
| } |
| if (dwFlags == WCB16_CDECL) |
| HeapFree(GetProcessHeap(),0,args); |
| if (pdwret) |
| *pdwret = ret; |
| return TRUE; |
| } |
| |
| /*********************************************************************** |
| * THUNK_MOUSE_Enable (MOUSE.2) |
| */ |
| static VOID WINAPI THUNK_CallMouseEventProc( FARPROC16 proc, |
| DWORD dwFlags, DWORD dx, DWORD dy, |
| DWORD cButtons, DWORD dwExtraInfo ) |
| { |
| CONTEXT86 context; |
| |
| memset( &context, 0, sizeof(context) ); |
| CS_reg(&context) = SELECTOROF( proc ); |
| EIP_reg(&context) = OFFSETOF( proc ); |
| AX_reg(&context) = (WORD)dwFlags; |
| BX_reg(&context) = (WORD)dx; |
| CX_reg(&context) = (WORD)dy; |
| DX_reg(&context) = (WORD)cButtons; |
| SI_reg(&context) = LOWORD( dwExtraInfo ); |
| DI_reg(&context) = HIWORD( dwExtraInfo ); |
| |
| CallTo16RegisterShort( &context, 0 ); |
| } |
| VOID WINAPI THUNK_MOUSE_Enable( FARPROC16 proc ) |
| { |
| static THUNK *lastThunk = NULL; |
| static FARPROC16 lastProc = NULL; |
| |
| if ( lastProc != proc ) |
| { |
| if ( lastThunk ) |
| THUNK_Free( lastThunk ); |
| |
| if ( !proc ) |
| lastThunk = NULL; |
| else |
| lastThunk = THUNK_Alloc( proc, (RELAY)THUNK_CallMouseEventProc ); |
| |
| lastProc = proc; |
| } |
| |
| MOUSE_Enable( (LPMOUSE_EVENT_PROC)lastThunk ); |
| } |
| |
| /*********************************************************************** |
| * GetMouseEventProc (USER.337) |
| */ |
| FARPROC16 WINAPI GetMouseEventProc16(void) |
| { |
| HMODULE16 hmodule = GetModuleHandle16("USER"); |
| return NE_GetEntryPoint( hmodule, NE_GetOrdinal( hmodule, "mouse_event" )); |
| } |
| |
| |
| /*********************************************************************** |
| * WIN16_mouse_event (USER.299) |
| */ |
| void WINAPI WIN16_mouse_event( CONTEXT86 *context ) |
| { |
| mouse_event( AX_reg(context), BX_reg(context), CX_reg(context), |
| DX_reg(context), MAKELONG(SI_reg(context), DI_reg(context)) ); |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_KEYBD_Enable (KEYBOARD.2) |
| */ |
| static VOID WINAPI THUNK_CallKeybdEventProc( FARPROC16 proc, |
| BYTE bVk, BYTE bScan, |
| DWORD dwFlags, DWORD dwExtraInfo ) |
| { |
| CONTEXT86 context; |
| |
| memset( &context, 0, sizeof(context) ); |
| CS_reg(&context) = SELECTOROF( proc ); |
| EIP_reg(&context) = OFFSETOF( proc ); |
| AH_reg(&context) = (dwFlags & KEYEVENTF_KEYUP)? 0x80 : 0; |
| AL_reg(&context) = bVk; |
| BH_reg(&context) = (dwFlags & KEYEVENTF_EXTENDEDKEY)? 1 : 0; |
| BL_reg(&context) = bScan; |
| SI_reg(&context) = LOWORD( dwExtraInfo ); |
| DI_reg(&context) = HIWORD( dwExtraInfo ); |
| |
| CallTo16RegisterShort( &context, 0 ); |
| } |
| VOID WINAPI THUNK_KEYBOARD_Enable( FARPROC16 proc, LPBYTE lpKeyState ) |
| { |
| static THUNK *lastThunk = NULL; |
| static FARPROC16 lastProc = NULL; |
| |
| if ( lastProc != proc ) |
| { |
| if ( lastThunk ) |
| THUNK_Free( lastThunk ); |
| |
| if ( !proc ) |
| lastThunk = NULL; |
| else |
| lastThunk = THUNK_Alloc( proc, (RELAY)THUNK_CallKeybdEventProc ); |
| |
| lastProc = proc; |
| } |
| |
| KEYBOARD_Enable( (LPKEYBD_EVENT_PROC)lastThunk, lpKeyState ); |
| } |
| |
| /*********************************************************************** |
| * WIN16_keybd_event (USER.289) |
| */ |
| void WINAPI WIN16_keybd_event( CONTEXT86 *context ) |
| { |
| DWORD dwFlags = 0; |
| |
| if (AH_reg(context) & 0x80) dwFlags |= KEYEVENTF_KEYUP; |
| if (BH_reg(context) & 1 ) dwFlags |= KEYEVENTF_EXTENDEDKEY; |
| |
| keybd_event( AL_reg(context), BL_reg(context), |
| dwFlags, MAKELONG(SI_reg(context), DI_reg(context)) ); |
| } |
| |
| |
| /*********************************************************************** |
| * WIN16_CreateSystemTimer (SYSTEM.2) |
| */ |
| static void THUNK_CallSystemTimerProc( FARPROC16 proc, WORD timer ) |
| { |
| CONTEXT86 context; |
| memset( &context, '\0', sizeof(context) ); |
| |
| CS_reg( &context ) = SELECTOROF( proc ); |
| EIP_reg( &context ) = OFFSETOF( proc ); |
| EBP_reg( &context ) = OFFSETOF( NtCurrentTeb()->cur_stack ) |
| + (WORD)&((STACK16FRAME*)0)->bp; |
| |
| AX_reg( &context ) = timer; |
| |
| if ( _ConfirmWin16Lock() ) |
| { |
| FIXME_(system)("Skipping timer %d callback because timer signal " |
| "arrived while we own the Win16Lock!\n", timer ); |
| return; |
| } |
| |
| CallTo16RegisterShort( &context, 0 ); |
| |
| /* FIXME: This does not work if the signal occurs while this thread |
| is currently in 16-bit code. With the current structure |
| of the Wine thunking code, this seems to be hard to fix ... */ |
| } |
| WORD WINAPI WIN16_CreateSystemTimer( WORD rate, FARPROC16 proc ) |
| { |
| THUNK *thunk = THUNK_Alloc( proc, (RELAY)THUNK_CallSystemTimerProc ); |
| WORD timer = CreateSystemTimer( rate, (SYSTEMTIMERPROC)thunk ); |
| if (!timer) THUNK_Free( thunk ); |
| return timer; |
| } |
| |
| /*********************************************************************** |
| * THUNK_GetCalloutThunk |
| * |
| * Retrieve API entry point with given name from given module. |
| * If module is builtin, return the 32-bit entry point, otherwise |
| * create a 32->16 thunk to the 16-bit entry point, using the |
| * given relay code. |
| * |
| */ |
| static FARPROC THUNK_GetCalloutThunk( NE_MODULE *pModule, LPSTR name, RELAY relay ) |
| { |
| FARPROC16 proc = WIN32_GetProcAddress16( pModule->self, name ); |
| if ( !proc ) return 0; |
| |
| if ( pModule->flags & NE_FFLAGS_BUILTIN ) |
| return (FARPROC)((ENTRYPOINT16 *)PTR_SEG_TO_LIN( proc ))->target; |
| else |
| return (FARPROC)THUNK_Alloc( proc, relay ); |
| } |
| |
| /*********************************************************************** |
| * THUNK_InitCallout |
| */ |
| void THUNK_InitCallout(void) |
| { |
| HMODULE hModule; |
| NE_MODULE *pModule; |
| |
| hModule = GetModuleHandleA( "USER32" ); |
| if ( hModule ) |
| { |
| #define GETADDR( var, name ) \ |
| *(FARPROC *)&Callout.##var = GetProcAddress( hModule, name ) |
| |
| GETADDR( PeekMessageA, "PeekMessageA" ); |
| GETADDR( PeekMessageW, "PeekMessageW" ); |
| GETADDR( GetMessageA, "GetMessageA" ); |
| GETADDR( GetMessageW, "GetMessageW" ); |
| GETADDR( SendMessageA, "SendMessageA" ); |
| GETADDR( SendMessageW, "SendMessageW" ); |
| GETADDR( PostMessageA, "PostMessageA" ); |
| GETADDR( PostMessageW, "PostMessageW" ); |
| GETADDR( PostThreadMessageA, "PostThreadMessageA" ); |
| GETADDR( PostThreadMessageW, "PostThreadMessageW" ); |
| GETADDR( TranslateMessage, "TranslateMessage" ); |
| GETADDR( DispatchMessageW, "DispatchMessageW" ); |
| GETADDR( DispatchMessageA, "DispatchMessageA" ); |
| GETADDR( RedrawWindow, "RedrawWindow" ); |
| GETADDR( UserSignalProc, "UserSignalProc" ); |
| |
| #undef GETADDR |
| } |
| |
| pModule = NE_GetPtr( GetModuleHandle16( "USER" ) ); |
| if ( pModule ) |
| { |
| #define GETADDR( var, name, thk ) \ |
| *(FARPROC *)&Callout.##var = THUNK_GetCalloutThunk( pModule, name, \ |
| (RELAY)THUNK_CallTo16_##thk ) |
| |
| GETADDR( PeekMessage16, "PeekMessage", word_lwwww ); |
| GETADDR( GetMessage16, "GetMessage", word_lwww ); |
| GETADDR( SendMessage16, "SendMessage", long_wwwl ); |
| GETADDR( PostMessage16, "PostMessage", word_wwwl ); |
| GETADDR( PostAppMessage16, "PostAppMessage", word_wwwl ); |
| GETADDR( TranslateMessage16, "TranslateMessage", word_l ); |
| GETADDR( DispatchMessage16, "DispatchMessage", long_l ); |
| GETADDR( RedrawWindow16, "RedrawWindow", word_wlww ); |
| GETADDR( FinalUserInit16, "FinalUserInit", word_ ); |
| GETADDR( InitApp16, "InitApp", word_w ); |
| GETADDR( InitThreadInput16, "InitThreadInput", word_ww ); |
| GETADDR( UserYield16, "UserYield", word_ ); |
| GETADDR( DestroyIcon32, "DestroyIcon32", word_ww ); |
| |
| #undef GETADDR |
| } |
| } |
| |
| /*********************************************************************** |
| * 16->32 Flat Thunk routines: |
| */ |
| |
| /*********************************************************************** |
| * ThunkConnect16 (KERNEL.651) |
| * Connects a 32bit and a 16bit thunkbuffer. |
| */ |
| UINT WINAPI ThunkConnect16( |
| LPSTR module16, /* [in] name of win16 dll */ |
| LPSTR module32, /* [in] name of win32 dll */ |
| HINSTANCE16 hInst16, /* [in] hInst of win16 dll */ |
| DWORD dwReason, /* [in] initialisation argument */ |
| struct ThunkDataCommon *TD, /* [in/out] thunkbuffer */ |
| LPSTR thunkfun32, /* [in] win32 thunkfunction */ |
| WORD cs /* [in] CS of win16 dll */ |
| ) { |
| BOOL directionSL; |
| |
| if (!strncmp(TD->magic, "SL01", 4)) |
| { |
| directionSL = TRUE; |
| |
| TRACE_(thunk)("SL01 thunk %s (%lx) -> %s (%s), Reason: %ld\n", |
| module16, (DWORD)TD, module32, thunkfun32, dwReason); |
| } |
| else if (!strncmp(TD->magic, "LS01", 4)) |
| { |
| directionSL = FALSE; |
| |
| TRACE_(thunk)("LS01 thunk %s (%lx) <- %s (%s), Reason: %ld\n", |
| module16, (DWORD)TD, module32, thunkfun32, dwReason); |
| } |
| else |
| { |
| ERR_(thunk)("Invalid magic %c%c%c%c\n", |
| TD->magic[0], TD->magic[1], TD->magic[2], TD->magic[3]); |
| return 0; |
| } |
| |
| switch (dwReason) |
| { |
| case DLL_PROCESS_ATTACH: |
| if (directionSL) |
| { |
| struct ThunkDataSL16 *SL16 = (struct ThunkDataSL16 *)TD; |
| struct ThunkDataSL *SL = SL16->fpData; |
| |
| if (SL == NULL) |
| { |
| SL = HeapAlloc(GetProcessHeap(), 0, sizeof(*SL)); |
| |
| SL->common = SL16->common; |
| SL->flags1 = SL16->flags1; |
| SL->flags2 = SL16->flags2; |
| |
| SL->apiDB = PTR_SEG_TO_LIN(SL16->apiDatabase); |
| SL->targetDB = NULL; |
| |
| lstrcpynA(SL->pszDll16, module16, 255); |
| lstrcpynA(SL->pszDll32, module32, 255); |
| |
| /* We should create a SEGPTR to the ThunkDataSL, |
| but since the contents are not in the original format, |
| any access to this by 16-bit code would crash anyway. */ |
| SL16->spData = 0; |
| SL16->fpData = SL; |
| } |
| |
| |
| if (SL->flags2 & 0x80000000) |
| { |
| TRACE_(thunk)("Preloading 32-bit library\n"); |
| LoadLibraryA(module32); |
| } |
| } |
| else |
| { |
| /* nothing to do */ |
| } |
| break; |
| |
| case DLL_PROCESS_DETACH: |
| /* FIXME: cleanup */ |
| break; |
| } |
| |
| return 1; |
| } |
| |
| |
| /*********************************************************************** |
| * C16ThkSL (KERNEL.630) |
| */ |
| |
| void WINAPI C16ThkSL(CONTEXT86 *context) |
| { |
| LPBYTE stub = PTR_SEG_TO_LIN(EAX_reg(context)), x = stub; |
| WORD cs, ds; |
| GET_CS(cs); |
| GET_DS(ds); |
| |
| /* We produce the following code: |
| * |
| * mov ax, __FLATDS |
| * mov es, ax |
| * movzx ecx, cx |
| * mov edx, es:[ecx + $EDX] |
| * push bp |
| * push edx |
| * push dx |
| * push edx |
| * call __FLATCS:CallFrom16Thunk |
| */ |
| |
| *x++ = 0xB8; *((WORD *)x)++ = ds; |
| *x++ = 0x8E; *x++ = 0xC0; |
| *x++ = 0x66; *x++ = 0x0F; *x++ = 0xB7; *x++ = 0xC9; |
| *x++ = 0x67; *x++ = 0x66; *x++ = 0x26; *x++ = 0x8B; |
| *x++ = 0x91; *((DWORD *)x)++ = EDX_reg(context); |
| |
| *x++ = 0x55; |
| *x++ = 0x66; *x++ = 0x52; |
| *x++ = 0x52; |
| *x++ = 0x66; *x++ = 0x52; |
| *x++ = 0x66; *x++ = 0x9A; *((DWORD *)x)++ = (DWORD)CallFrom16Thunk; |
| *((WORD *)x)++ = cs; |
| |
| /* Jump to the stub code just created */ |
| EIP_reg(context) = LOWORD(EAX_reg(context)); |
| CS_reg(context) = HIWORD(EAX_reg(context)); |
| |
| /* Since C16ThkSL got called by a jmp, we need to leave the |
| original return address on the stack */ |
| ESP_reg(context) -= 4; |
| } |
| |
| /*********************************************************************** |
| * C16ThkSL01 (KERNEL.631) |
| */ |
| |
| void WINAPI C16ThkSL01(CONTEXT86 *context) |
| { |
| LPBYTE stub = PTR_SEG_TO_LIN(EAX_reg(context)), x = stub; |
| |
| if (stub) |
| { |
| struct ThunkDataSL16 *SL16 = PTR_SEG_TO_LIN(EDX_reg(context)); |
| struct ThunkDataSL *td = SL16->fpData; |
| |
| DWORD procAddress = (DWORD)GetProcAddress16(GetModuleHandle16("KERNEL"), 631); |
| WORD cs; |
| GET_CS(cs); |
| |
| if (!td) |
| { |
| ERR_(thunk)("ThunkConnect16 was not called!\n"); |
| return; |
| } |
| |
| TRACE_(thunk)("Creating stub for ThunkDataSL %08lx\n", (DWORD)td); |
| |
| |
| /* We produce the following code: |
| * |
| * xor eax, eax |
| * mov edx, $td |
| * call C16ThkSL01 |
| * push bp |
| * push edx |
| * push dx |
| * push edx |
| * call __FLATCS:CallFrom16Thunk |
| */ |
| |
| *x++ = 0x66; *x++ = 0x33; *x++ = 0xC0; |
| *x++ = 0x66; *x++ = 0xBA; *((DWORD *)x)++ = (DWORD)td; |
| *x++ = 0x9A; *((DWORD *)x)++ = procAddress; |
| |
| *x++ = 0x55; |
| *x++ = 0x66; *x++ = 0x52; |
| *x++ = 0x52; |
| *x++ = 0x66; *x++ = 0x52; |
| *x++ = 0x66; *x++ = 0x9A; *((DWORD *)x)++ = (DWORD)CallFrom16Thunk; |
| *((WORD *)x)++ = cs; |
| |
| /* Jump to the stub code just created */ |
| EIP_reg(context) = LOWORD(EAX_reg(context)); |
| CS_reg(context) = HIWORD(EAX_reg(context)); |
| |
| /* Since C16ThkSL01 got called by a jmp, we need to leave the |
| orginal return address on the stack */ |
| ESP_reg(context) -= 4; |
| } |
| else |
| { |
| struct ThunkDataSL *td = (struct ThunkDataSL *)EDX_reg(context); |
| DWORD targetNr = CX_reg(context) / 4; |
| struct SLTargetDB *tdb; |
| |
| TRACE_(thunk)("Process %08lx calling target %ld of ThunkDataSL %08lx\n", |
| (DWORD)PROCESS_Current(), targetNr, (DWORD)td); |
| |
| for (tdb = td->targetDB; tdb; tdb = tdb->next) |
| if (tdb->process == PROCESS_Current()) |
| break; |
| |
| if (!tdb) |
| { |
| TRACE_(thunk)("Loading 32-bit library %s\n", td->pszDll32); |
| LoadLibraryA(td->pszDll32); |
| |
| for (tdb = td->targetDB; tdb; tdb = tdb->next) |
| if (tdb->process == PROCESS_Current()) |
| break; |
| } |
| |
| if (tdb) |
| { |
| EDX_reg(context) = tdb->targetTable[targetNr]; |
| |
| TRACE_(thunk)("Call target is %08lx\n", EDX_reg(context)); |
| } |
| else |
| { |
| WORD *stack = PTR_SEG_OFF_TO_LIN(SS_reg(context), LOWORD(ESP_reg(context))); |
| DX_reg(context) = HIWORD(td->apiDB[targetNr].errorReturnValue); |
| AX_reg(context) = LOWORD(td->apiDB[targetNr].errorReturnValue); |
| EIP_reg(context) = stack[2]; |
| CS_reg(context) = stack[3]; |
| ESP_reg(context) += td->apiDB[targetNr].nrArgBytes + 4; |
| |
| ERR_(thunk)("Process %08lx did not ThunkConnect32 %s to %s\n", |
| (DWORD)PROCESS_Current(), td->pszDll32, td->pszDll16); |
| } |
| } |
| } |
| |
| DWORD WINAPI |
| WOW16Call(WORD x,WORD y,WORD z) { |
| int i; |
| DWORD calladdr; |
| VA_LIST16 args; |
| FIXME_(thunk)("(0x%04x,0x%04x,%d),calling (",x,y,z); |
| |
| VA_START16(args); |
| for (i=0;i<x/2;i++) { |
| WORD a = VA_ARG16(args,WORD); |
| DPRINTF("%04x ",a); |
| } |
| calladdr = VA_ARG16(args,DWORD); |
| VA_END16(args); |
| stack16_pop( x + sizeof(DWORD) ); |
| DPRINTF(") calling address was 0x%08lx\n",calladdr); |
| return 0; |
| } |
| |
| |
| /*********************************************************************** |
| * 16<->32 Thunklet/Callback API: |
| */ |
| |
| #include "pshpack1.h" |
| typedef struct _THUNKLET |
| { |
| BYTE prefix_target; |
| BYTE pushl_target; |
| DWORD target; |
| |
| BYTE prefix_relay; |
| BYTE pushl_relay; |
| DWORD relay; |
| |
| BYTE jmp_glue; |
| DWORD glue; |
| |
| BYTE type; |
| HINSTANCE16 owner; |
| struct _THUNKLET *next; |
| } THUNKLET; |
| #include "poppack.h" |
| |
| #define THUNKLET_TYPE_LS 1 |
| #define THUNKLET_TYPE_SL 2 |
| |
| static HANDLE ThunkletHeap = 0; |
| static THUNKLET *ThunkletAnchor = NULL; |
| |
| static FARPROC ThunkletSysthunkGlueLS = 0; |
| static SEGPTR ThunkletSysthunkGlueSL = 0; |
| |
| static FARPROC ThunkletCallbackGlueLS = 0; |
| static SEGPTR ThunkletCallbackGlueSL = 0; |
| |
| /*********************************************************************** |
| * THUNK_ThunkletInit |
| */ |
| static BOOL THUNK_ThunkletInit( void ) |
| { |
| LPBYTE thunk; |
| |
| ThunkletHeap = HeapCreate(HEAP_WINE_SEGPTR | HEAP_WINE_CODE16SEG, 0, 0); |
| if (!ThunkletHeap) return FALSE; |
| |
| thunk = HeapAlloc( ThunkletHeap, 0, 5 ); |
| if (!thunk) return FALSE; |
| |
| ThunkletSysthunkGlueLS = (FARPROC)thunk; |
| *thunk++ = 0x58; /* popl eax */ |
| *thunk++ = 0xC3; /* ret */ |
| |
| ThunkletSysthunkGlueSL = HEAP_GetSegptr( ThunkletHeap, 0, thunk ); |
| *thunk++ = 0x66; *thunk++ = 0x58; /* popl eax */ |
| *thunk++ = 0xCB; /* lret */ |
| |
| return TRUE; |
| } |
| |
| /*********************************************************************** |
| * SetThunkletCallbackGlue (KERNEL.560) |
| */ |
| void WINAPI SetThunkletCallbackGlue16( FARPROC glueLS, SEGPTR glueSL ) |
| { |
| ThunkletCallbackGlueLS = glueLS; |
| ThunkletCallbackGlueSL = glueSL; |
| } |
| |
| |
| /*********************************************************************** |
| * THUNK_FindThunklet |
| */ |
| THUNKLET *THUNK_FindThunklet( DWORD target, DWORD relay, |
| DWORD glue, BYTE type ) |
| { |
| THUNKLET *thunk; |
| |
| for (thunk = ThunkletAnchor; thunk; thunk = thunk->next) |
| if ( thunk->type == type |
| && thunk->target == target |
| && thunk->relay == relay |
| && ( type == THUNKLET_TYPE_LS ? |
| ( thunk->glue == glue - (DWORD)&thunk->type ) |
| : ( thunk->glue == glue ) ) ) |
| return thunk; |
| |
| return NULL; |
| } |
| |
| /*********************************************************************** |
| * THUNK_AllocLSThunklet |
| */ |
| FARPROC THUNK_AllocLSThunklet( SEGPTR target, DWORD relay, |
| FARPROC glue, HTASK16 owner ) |
| { |
| THUNKLET *thunk = THUNK_FindThunklet( (DWORD)target, relay, (DWORD)glue, |
| THUNKLET_TYPE_LS ); |
| if (!thunk) |
| { |
| TDB *pTask = (TDB*)GlobalLock16( owner ); |
| |
| if ( !(thunk = HeapAlloc( ThunkletHeap, 0, sizeof(THUNKLET) )) ) |
| return 0; |
| |
| thunk->prefix_target = thunk->prefix_relay = 0x90; |
| thunk->pushl_target = thunk->pushl_relay = 0x68; |
| thunk->jmp_glue = 0xE9; |
| |
| thunk->target = (DWORD)target; |
| thunk->relay = (DWORD)relay; |
| thunk->glue = (DWORD)glue - (DWORD)&thunk->type; |
| |
| thunk->type = THUNKLET_TYPE_LS; |
| thunk->owner = pTask? pTask->hInstance : 0; |
| |
| thunk->next = ThunkletAnchor; |
| ThunkletAnchor = thunk; |
| } |
| |
| return (FARPROC)thunk; |
| } |
| |
| /*********************************************************************** |
| * THUNK_AllocSLThunklet |
| */ |
| SEGPTR THUNK_AllocSLThunklet( FARPROC target, DWORD relay, |
| SEGPTR glue, HTASK16 owner ) |
| { |
| THUNKLET *thunk = THUNK_FindThunklet( (DWORD)target, relay, (DWORD)glue, |
| THUNKLET_TYPE_SL ); |
| if (!thunk) |
| { |
| TDB *pTask = (TDB*)GlobalLock16( owner ); |
| |
| if ( !(thunk = HeapAlloc( ThunkletHeap, 0, sizeof(THUNKLET) )) ) |
| return 0; |
| |
| thunk->prefix_target = thunk->prefix_relay = 0x66; |
| thunk->pushl_target = thunk->pushl_relay = 0x68; |
| thunk->jmp_glue = 0xEA; |
| |
| thunk->target = (DWORD)target; |
| thunk->relay = (DWORD)relay; |
| thunk->glue = (DWORD)glue; |
| |
| thunk->type = THUNKLET_TYPE_SL; |
| thunk->owner = pTask? pTask->hInstance : 0; |
| |
| thunk->next = ThunkletAnchor; |
| ThunkletAnchor = thunk; |
| } |
| |
| return HEAP_GetSegptr( ThunkletHeap, 0, thunk ); |
| } |
| |
| /********************************************************************** |
| * IsLSThunklet |
| */ |
| BOOL16 WINAPI IsLSThunklet( THUNKLET *thunk ) |
| { |
| return thunk->prefix_target == 0x90 && thunk->pushl_target == 0x68 |
| && thunk->prefix_relay == 0x90 && thunk->pushl_relay == 0x68 |
| && thunk->jmp_glue == 0xE9 && thunk->type == THUNKLET_TYPE_LS; |
| } |
| |
| /********************************************************************** |
| * IsSLThunklet (KERNEL.612) |
| */ |
| BOOL16 WINAPI IsSLThunklet16( THUNKLET *thunk ) |
| { |
| return thunk->prefix_target == 0x66 && thunk->pushl_target == 0x68 |
| && thunk->prefix_relay == 0x66 && thunk->pushl_relay == 0x68 |
| && thunk->jmp_glue == 0xEA && thunk->type == THUNKLET_TYPE_SL; |
| } |
| |
| |
| |
| /*********************************************************************** |
| * AllocLSThunkletSysthunk (KERNEL.607) |
| */ |
| FARPROC WINAPI AllocLSThunkletSysthunk16( SEGPTR target, |
| FARPROC relay, DWORD dummy ) |
| { |
| return THUNK_AllocLSThunklet( (SEGPTR)relay, (DWORD)target, |
| ThunkletSysthunkGlueLS, GetCurrentTask() ); |
| } |
| |
| /*********************************************************************** |
| * AllocSLThunkletSysthunk (KERNEL.608) |
| */ |
| SEGPTR WINAPI AllocSLThunkletSysthunk16( FARPROC target, |
| SEGPTR relay, DWORD dummy ) |
| { |
| return THUNK_AllocSLThunklet( (FARPROC)relay, (DWORD)target, |
| ThunkletSysthunkGlueSL, GetCurrentTask() ); |
| } |
| |
| |
| /*********************************************************************** |
| * AllocLSThunkletCallbackEx (KERNEL.567) |
| */ |
| FARPROC WINAPI AllocLSThunkletCallbackEx16( SEGPTR target, |
| DWORD relay, HTASK16 task ) |
| { |
| THUNKLET *thunk = (THUNKLET *)PTR_SEG_TO_LIN( target ); |
| if ( !thunk ) return NULL; |
| |
| if ( IsSLThunklet16( thunk ) && thunk->relay == relay |
| && thunk->glue == (DWORD)ThunkletCallbackGlueSL ) |
| return (FARPROC)thunk->target; |
| |
| return THUNK_AllocLSThunklet( target, relay, |
| ThunkletCallbackGlueLS, task ); |
| } |
| |
| /*********************************************************************** |
| * AllocSLThunkletCallbackEx (KERNEL.568) |
| */ |
| SEGPTR WINAPI AllocSLThunkletCallbackEx16( FARPROC target, |
| DWORD relay, HTASK16 task ) |
| { |
| THUNKLET *thunk = (THUNKLET *)target; |
| if ( !thunk ) return 0; |
| |
| if ( IsLSThunklet( thunk ) && thunk->relay == relay |
| && thunk->glue == (DWORD)ThunkletCallbackGlueLS - (DWORD)&thunk->type ) |
| return (SEGPTR)thunk->target; |
| |
| return THUNK_AllocSLThunklet( target, relay, |
| ThunkletCallbackGlueSL, task ); |
| } |
| |
| /*********************************************************************** |
| * AllocLSThunkletCallback (KERNEL.561) (KERNEL.606) |
| */ |
| FARPROC WINAPI AllocLSThunkletCallback16( SEGPTR target, DWORD relay ) |
| { |
| return AllocLSThunkletCallbackEx16( target, relay, GetCurrentTask() ); |
| } |
| |
| /*********************************************************************** |
| * AllocSLThunkletCallback (KERNEL.562) (KERNEL.605) |
| */ |
| SEGPTR WINAPI AllocSLThunkletCallback16( FARPROC target, DWORD relay ) |
| { |
| return AllocSLThunkletCallbackEx16( target, relay, GetCurrentTask() ); |
| } |
| |
| /*********************************************************************** |
| * FindLSThunkletCallback (KERNEL.563) (KERNEL.609) |
| */ |
| FARPROC WINAPI FindLSThunkletCallback( SEGPTR target, DWORD relay ) |
| { |
| THUNKLET *thunk = (THUNKLET *)PTR_SEG_TO_LIN( target ); |
| if ( thunk && IsSLThunklet16( thunk ) && thunk->relay == relay |
| && thunk->glue == (DWORD)ThunkletCallbackGlueSL ) |
| return (FARPROC)thunk->target; |
| |
| thunk = THUNK_FindThunklet( (DWORD)target, relay, |
| (DWORD)ThunkletCallbackGlueLS, |
| THUNKLET_TYPE_LS ); |
| return (FARPROC)thunk; |
| } |
| |
| /*********************************************************************** |
| * FindSLThunkletCallback (KERNEL.564) (KERNEL.610) |
| */ |
| SEGPTR WINAPI FindSLThunkletCallback( FARPROC target, DWORD relay ) |
| { |
| THUNKLET *thunk = (THUNKLET *)target; |
| if ( thunk && IsLSThunklet( thunk ) && thunk->relay == relay |
| && thunk->glue == (DWORD)ThunkletCallbackGlueLS - (DWORD)&thunk->type ) |
| return (SEGPTR)thunk->target; |
| |
| thunk = THUNK_FindThunklet( (DWORD)target, relay, |
| (DWORD)ThunkletCallbackGlueSL, |
| THUNKLET_TYPE_SL ); |
| return HEAP_GetSegptr( ThunkletHeap, 0, thunk ); |
| } |
| |
| |
| /*********************************************************************** |
| * FreeThunklet16 (KERNEL.611) |
| */ |
| BOOL16 WINAPI FreeThunklet16( DWORD unused1, DWORD unused2 ) |
| { |
| return FALSE; |
| } |
| |
| /*********************************************************************** |
| * Callback Client API |
| */ |
| |
| #define N_CBC_FIXED 20 |
| #define N_CBC_VARIABLE 10 |
| #define N_CBC_TOTAL (N_CBC_FIXED + N_CBC_VARIABLE) |
| |
| static SEGPTR *CBClientRelay16[ N_CBC_TOTAL ]; |
| static FARPROC *CBClientRelay32[ N_CBC_TOTAL ]; |
| |
| /*********************************************************************** |
| * RegisterCBClient (KERNEL.619) |
| */ |
| INT16 WINAPI RegisterCBClient16( INT16 wCBCId, |
| SEGPTR *relay16, FARPROC *relay32 ) |
| { |
| /* Search for free Callback ID */ |
| if ( wCBCId == -1 ) |
| for ( wCBCId = N_CBC_FIXED; wCBCId < N_CBC_TOTAL; wCBCId++ ) |
| if ( !CBClientRelay16[ wCBCId ] ) |
| break; |
| |
| /* Register Callback ID */ |
| if ( wCBCId > 0 && wCBCId < N_CBC_TOTAL ) |
| { |
| CBClientRelay16[ wCBCId ] = relay16; |
| CBClientRelay32[ wCBCId ] = relay32; |
| } |
| else |
| wCBCId = 0; |
| |
| return wCBCId; |
| } |
| |
| /*********************************************************************** |
| * UnRegisterCBClient (KERNEL.622) |
| */ |
| INT16 WINAPI UnRegisterCBClient16( INT16 wCBCId, |
| SEGPTR *relay16, FARPROC *relay32 ) |
| { |
| if ( wCBCId >= N_CBC_FIXED && wCBCId < N_CBC_TOTAL |
| && CBClientRelay16[ wCBCId ] == relay16 |
| && CBClientRelay32[ wCBCId ] == relay32 ) |
| { |
| CBClientRelay16[ wCBCId ] = 0; |
| CBClientRelay32[ wCBCId ] = 0; |
| } |
| else |
| wCBCId = 0; |
| |
| return wCBCId; |
| } |
| |
| |
| /*********************************************************************** |
| * InitCBClient (KERNEL.623) |
| */ |
| void WINAPI InitCBClient16( FARPROC glueLS ) |
| { |
| HMODULE16 kernel = GetModuleHandle16( "KERNEL" ); |
| SEGPTR glueSL = (SEGPTR)WIN32_GetProcAddress16( kernel, (LPCSTR)604 ); |
| |
| SetThunkletCallbackGlue16( glueLS, glueSL ); |
| } |
| |
| /*********************************************************************** |
| * CBClientGlueSL (KERNEL.604) |
| */ |
| void WINAPI CBClientGlueSL( CONTEXT86 *context ) |
| { |
| /* Create stack frame */ |
| SEGPTR stackSeg = stack16_push( 12 ); |
| LPWORD stackLin = PTR_SEG_TO_LIN( stackSeg ); |
| SEGPTR glue; |
| |
| stackLin[3] = BP_reg( context ); |
| stackLin[2] = SI_reg( context ); |
| stackLin[1] = DI_reg( context ); |
| stackLin[0] = DS_reg( context ); |
| |
| EBP_reg( context ) = OFFSETOF( stackSeg ) + 6; |
| ESP_reg( context ) = OFFSETOF( stackSeg ) - 4; |
| GS_reg( context ) = 0; |
| |
| /* Jump to 16-bit relay code */ |
| glue = CBClientRelay16[ stackLin[5] ][ stackLin[4] ]; |
| CS_reg ( context ) = SELECTOROF( glue ); |
| EIP_reg( context ) = OFFSETOF ( glue ); |
| } |
| |
| /*********************************************************************** |
| * CBClientThunkSL (KERNEL.620) |
| */ |
| extern DWORD WINAPI CALL32_CBClient( FARPROC proc, LPWORD args, DWORD *esi ); |
| void WINAPI CBClientThunkSL( CONTEXT86 *context ) |
| { |
| /* Call 32-bit relay code */ |
| |
| LPWORD args = PTR_SEG_OFF_TO_LIN( SS_reg( context ), BP_reg( context ) ); |
| FARPROC proc = CBClientRelay32[ args[2] ][ args[1] ]; |
| |
| EAX_reg(context) = CALL32_CBClient( proc, args, &ESI_reg( context ) ); |
| } |
| |
| /*********************************************************************** |
| * CBClientThunkSLEx (KERNEL.621) |
| */ |
| extern DWORD WINAPI CALL32_CBClientEx( FARPROC proc, LPWORD args, |
| DWORD *esi, INT *nArgs ); |
| void WINAPI CBClientThunkSLEx( CONTEXT86 *context ) |
| { |
| /* Call 32-bit relay code */ |
| |
| LPWORD args = PTR_SEG_OFF_TO_LIN( SS_reg( context ), BP_reg( context ) ); |
| FARPROC proc = CBClientRelay32[ args[2] ][ args[1] ]; |
| INT nArgs; |
| LPWORD stackLin; |
| |
| EAX_reg(context) = CALL32_CBClientEx( proc, args, &ESI_reg( context ), &nArgs ); |
| |
| /* Restore registers saved by CBClientGlueSL */ |
| stackLin = (LPWORD)((LPBYTE)CURRENT_STACK16 + sizeof(STACK16FRAME) - 4); |
| BP_reg( context ) = stackLin[3]; |
| SI_reg( context ) = stackLin[2]; |
| DI_reg( context ) = stackLin[1]; |
| DS_reg( context ) = stackLin[0]; |
| ESP_reg( context ) += 16+nArgs; |
| |
| /* Return to caller of CBClient thunklet */ |
| CS_reg ( context ) = stackLin[9]; |
| EIP_reg( context ) = stackLin[8]; |
| } |
| |
