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wine-winehq
Commit 2dec1ba4 authored by Ulrich Weigand's avatar Ulrich Weigand Committed by Alexandre Julliard
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Modified THUNK_Alloc so as to avoid 32->16->32 calling sequences.

Removed persistent thunk creation routines.
parent d94475bd
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Showing with 38 additions and 338 deletions
if1632/thunk.c
View file @ 2dec1ba4
......@@ -22,8 +22,6 @@
#include "keyboard.h"
#include "debugtools.h"
DECLARE_DEBUG_CHANNEL(relay)
DECLARE_DEBUG_CHANNEL(system)
DECLARE_DEBUG_CHANNEL(thunk)
......@@ -43,18 +41,15 @@ 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 WORD CALLBACK THUNK_CallTo16_word_llwl (FARPROC16,LONG,LONG,WORD,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_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);
/* ### stop build ### */
......@@ -129,7 +124,38 @@ BOOL THUNK_Init(void)
*/
FARPROC THUNK_Alloc( FARPROC16 func, RELAY relay )
{
THUNK *thunk = HeapAlloc( GetProcessHeap(), 0, sizeof(*thunk) );
HANDLE16 hSeg;
NE_MODULE *pModule;
THUNK *thunk;
/* NULL maps to NULL */
if ( !func ) return NULL;
/*
* If we got an 16-bit built-in API entry point, retrieve the Wine
* 32-bit handler for that API routine.
*
* NOTE: For efficiency reasons, we only check whether the selector
* of 'func' points to the code segment of a built-in module.
* It might be theoretically possible that the offset is such
* that 'func' does not point, in fact, to an API entry point.
* In this case, however, the pointer is corrupt anyway.
*/
hSeg = GlobalHandle16( SELECTOROF( func ) );
pModule = NE_GetPtr( FarGetOwner16( hSeg ) );
if ( pModule && (pModule->flags & NE_FFLAGS_BUILTIN)
&& NE_SEG_TABLE(pModule)[0].hSeg == hSeg )
{
FARPROC proc = (FARPROC)((ENTRYPOINT16 *)PTR_SEG_TO_LIN( func ))->target;
TRACE_(thunk)( "(%04x:%04x, %p) -> built-in API %p\n",
SELECTOROF( func ), OFFSETOF( func ), relay, proc );
return proc;
}
/* Otherwise, we need to alloc a thunk */
thunk = HeapAlloc( SystemHeap, 0, sizeof(*thunk) );
if (thunk)
{
thunk->popl_eax = 0x58;
......@@ -142,39 +168,30 @@ FARPROC THUNK_Alloc( FARPROC16 func, RELAY relay )
thunk->next = firstThunk;
firstThunk = thunk;
}
return (FARPROC)thunk;
}
/***********************************************************************
* THUNK_Find
*/
FARPROC THUNK_Find( FARPROC16 func )
{
THUNK *thunk = firstThunk;
while (thunk && (thunk->proc != func)) thunk = thunk->next;
TRACE_(thunk)( "(%04x:%04x, %p) -> allocated thunk %p\n",
SELECTOROF( func ), OFFSETOF( func ), relay, thunk );
return (FARPROC)thunk;
}
/***********************************************************************
* THUNK_Free
*/
void THUNK_Free( FARPROC thunk )
{
THUNK *t = (THUNK*)thunk;
if(IsBadReadPtr(&(t->magic), sizeof(t->magic)) ||
t->magic != CALLTO16_THUNK_MAGIC)
if ( !t || IsBadReadPtr( t, sizeof(*t) )
|| t->magic != CALLTO16_THUNK_MAGIC )
return;
if (HEAP_IsInsideHeap( GetProcessHeap(), 0, t ))
if (HEAP_IsInsideHeap( SystemHeap, 0, t ))
{
THUNK **prev = &firstThunk;
while (*prev && (*prev != t)) prev = &(*prev)->next;
if (*prev)
{
*prev = t->next;
HeapFree( GetProcessHeap(), 0, t );
HeapFree( SystemHeap, 0, t );
return;
}
}
......@@ -184,14 +201,6 @@ void THUNK_Free( FARPROC thunk )
/***********************************************************************
* THUNK_GetProc
*/
FARPROC16 THUNK_GetProc( FARPROC thunk )
{
return ((THUNK *)thunk)->proc;
}
/***********************************************************************
* THUNK_EnumObjects16 (GDI.71)
*/
INT16 WINAPI THUNK_EnumObjects16( HDC16 hdc, INT16 nObjType,
......@@ -318,313 +327,6 @@ BOOL16 WINAPI THUNK_GrayString16( HDC16 hdc, HBRUSH16 hbr,
/***********************************************************************
* THUNK_SetWindowsHook16 (USER.121)
*/
FARPROC16 WINAPI THUNK_SetWindowsHook16( INT16 id, HOOKPROC16 proc )
{
HINSTANCE16 hInst = FarGetOwner16( HIWORD(proc) );
HTASK16 hTask = (id == WH_MSGFILTER) ? GetCurrentTask() : 0;
FARPROC 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;
FARPROC 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 )
{
FARPROC 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 )
{
FARPROC thunk = (FARPROC)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 )
{
FARPROC 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 = (FARPROC)DCHook16;
/* Free the previous thunk */
GetDCHook( hdc, (FARPROC16 *)&oldThunk );
if (oldThunk && (oldThunk != (FARPROC)DCHook16)) THUNK_Free( oldThunk );
return SetDCHook( hdc, thunk, dwHookData );
}
/***********************************************************************
* THUNK_GetDCHook (GDI.191)
*/
DWORD WINAPI THUNK_GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
{
FARPROC thunk = NULL;
DWORD ret = GetDCHook( hdc, &thunk );
if (thunk)
{
if (thunk == (FARPROC)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_GetProc(thunk);
}
return ret;
}
/***********************************************************************
* THUNK_SetTaskSignalProc (KERNEL.38)
*/
FARPROC16 WINAPI THUNK_SetTaskSignalProc( HTASK16 hTask, FARPROC16 proc )
{
FARPROC thunk = THUNK_Alloc( proc, (RELAY)THUNK_CallTo16_word_wwwww );
if ( !thunk ) return NULL;
thunk = (FARPROC)SetTaskSignalProc( hTask, (FARPROC16)thunk );
if ( !thunk ) return NULL;
proc = THUNK_GetProc(thunk);
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_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 FARPROC 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 FARPROC 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 )
{
FARPROC 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.
......
include/callback.h
View file @ 2dec1ba4
......@@ -21,8 +21,6 @@ extern int (*IF1632_CallLargeStack)( int (*func)(void), void *arg );
typedef void (*RELAY)();
extern FARPROC THUNK_Alloc( FARPROC16 func, RELAY relay );
extern void THUNK_Free( FARPROC thunk );
extern FARPROC16 THUNK_GetProc( FARPROC thunk );
extern FARPROC THUNK_Find( FARPROC16 func );
typedef struct
{
......
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