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include: Add CURRENT_SS/SP macros for 16-bit code.

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Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-11-26 12:49:41 +01:00
parent 6e1c296ef3
commit f87262ea99
11 changed files with 73 additions and 83 deletions
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4
dlls/commdlg.dll16/filedlg.c
View file

@ -221,10 +221,10 @@ static LRESULT call_hook16( WNDPROC16 hook, HWND hwnd, UINT msg, WPARAM wp, LPAR
TRACE( "%p: %p %08x %lx %lx: stub\n", hook, hwnd, msg, wp, lp );
memset( &context, 0, sizeof(context) );
context.SegDs = context.SegEs = SELECTOROF( NtCurrentTeb()->WOW32Reserved );
context.SegDs = context.SegEs = CURRENT_SS;
context.SegCs = SELECTOROF( hook );
context.Eip = OFFSETOF( hook );
context.Ebp = OFFSETOF( NtCurrentTeb()->WOW32Reserved ) + FIELD_OFFSET( STACK16FRAME, bp );
context.Ebp = CURRENT_SP + FIELD_OFFSET( STACK16FRAME, bp );
context.Eax = context.SegDs;
params[4] = HWND_16( hwnd );

7
dlls/krnl386.exe16/kernel.c
View file

@ -46,9 +46,8 @@ static void thread_attach(void)
{
/* allocate the 16-bit stack (FIXME: should be done lazily) */
HGLOBAL16 hstack = WOWGlobalAlloc16( GMEM_FIXED, 0x10000 );
kernel_get_thread_data()->stack_sel = GlobalHandleToSel16( hstack );
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( kernel_get_thread_data()->stack_sel,
0x10000 - sizeof(STACK16FRAME) );
CURRENT_SS = kernel_get_thread_data()->stack_sel = GlobalHandleToSel16( hstack );
CURRENT_SP = 0x10000 - sizeof(STACK16FRAME);
memset( (char *)GlobalLock16(hstack) + 0x10000 - sizeof(STACK16FRAME), 0, sizeof(STACK16FRAME) );
}
@ -60,7 +59,7 @@ static void thread_detach(void)
{
/* free the 16-bit stack */
WOWGlobalFree16( kernel_get_thread_data()->stack_sel );
NtCurrentTeb()->WOW32Reserved = 0;
CURRENT_SS = CURRENT_SP = 0;
if (NtCurrentTeb()->Tib.SubSystemTib) TASK_ExitTask();
}

9
dlls/krnl386.exe16/kernel16_private.h
View file

@ -101,7 +101,8 @@ typedef struct
typedef struct
{
WORD null; /* Always 0 */
DWORD old_ss_sp; /* Stack pointer; used by SwitchTaskTo() */
WORD old_sp; /* Stack pointer; used by SwitchTaskTo() */
WORD old_ss;
WORD heap; /* Pointer to the local heap information (if any) */
WORD atomtable; /* Pointer to the local atom table (if any) */
WORD stacktop; /* Top of the stack */
@ -174,8 +175,8 @@ static inline SEGPTR stack16_push( int size )
{
STACK16FRAME *frame = CURRENT_STACK16;
memmove( (char*)frame - size, frame, sizeof(*frame) );
NtCurrentTeb()->WOW32Reserved = (char *)NtCurrentTeb()->WOW32Reserved - size;
return (SEGPTR)((char *)NtCurrentTeb()->WOW32Reserved + sizeof(*frame));
CURRENT_SP -= size;
return MAKESEGPTR( CURRENT_SS, CURRENT_SP + sizeof(*frame) );
}
/* pop bytes from the 16-bit stack of a thread */
@ -183,7 +184,7 @@ static inline void stack16_pop( int size )
{
STACK16FRAME *frame = CURRENT_STACK16;
memmove( (char*)frame + size, frame, sizeof(*frame) );
NtCurrentTeb()->WOW32Reserved = (char *)NtCurrentTeb()->WOW32Reserved + size;
CURRENT_SP += size;
}
/* dosmem.c */

8
dlls/krnl386.exe16/ne_module.c
View file

@ -1207,8 +1207,8 @@ DWORD NE_StartTask(void)
if (!(sp = OFFSETOF(pModule->ne_sssp)))
sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
sp &= ~1;
sp -= sizeof(STACK16FRAME);
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
CURRENT_SS = GlobalHandleToSel16(hInstance);
CURRENT_SP = sp - sizeof(STACK16FRAME);
/* Registers at initialization must be:
* ax zero
@ -1235,9 +1235,7 @@ DWORD NE_StartTask(void)
/* Now call 16-bit entry point */
TRACE("Starting main program: cs:ip=%04x:%04x ds=%04x ss:sp=%04x:%04x\n",
context.SegCs, context.Eip, context.SegDs,
SELECTOROF(NtCurrentTeb()->WOW32Reserved),
OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
context.SegCs, context.Eip, context.SegDs, CURRENT_SS, CURRENT_SP);
WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
ExitThread( LOWORD(context.Eax) );

24
dlls/krnl386.exe16/ne_segment.c
View file

@ -364,15 +364,14 @@ BOOL NE_LoadSegment( NE_MODULE *pModule, WORD segnum )
{
/* Implement self-loading segments */
SELFLOADHEADER *selfloadheader;
void *oldstack;
WORD old_ss = CURRENT_SS, old_sp = CURRENT_SP;
HFILE16 hFile16;
WORD args[3];
DWORD ret;
selfloadheader = MapSL( MAKESEGPTR(SEL(pSegTable->hSeg),0) );
oldstack = NtCurrentTeb()->WOW32Reserved;
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR(pModule->self_loading_sel,
0xff00 - sizeof(STACK16FRAME));
CURRENT_SS = pModule->self_loading_sel;
CURRENT_SP = 0xff00 - sizeof(STACK16FRAME);
hFile16 = NE_OpenFile( pModule );
TRACE_(dll)("Call LoadAppSegProc(hmodule=0x%04x,hf=%x,segnum=%d)\n",
@ -384,7 +383,8 @@ BOOL NE_LoadSegment( NE_MODULE *pModule, WORD segnum )
pSeg->hSeg = LOWORD(ret);
TRACE_(dll)("Ret LoadAppSegProc: hSeg=0x%04x\n", pSeg->hSeg);
_lclose16( hFile16 );
NtCurrentTeb()->WOW32Reserved = oldstack;
CURRENT_SS = old_ss;
CURRENT_SP = old_sp;
pSeg->flags |= NE_SEGFLAGS_LOADED;
return TRUE;
@ -462,7 +462,7 @@ BOOL NE_LoadAllSegments( NE_MODULE *pModule )
/* Handle self-loading modules */
SELFLOADHEADER *selfloadheader;
HMODULE16 mod = GetModuleHandle16("KERNEL");
void *oldstack;
WORD old_ss = CURRENT_SS, old_sp = CURRENT_SP;
WORD args[2];
TRACE_(module)("%.*s is a self-loading module!\n",
@ -476,9 +476,8 @@ BOOL NE_LoadAllSegments( NE_MODULE *pModule )
sel = GlobalAlloc16( GMEM_ZEROINIT, 0xFF00 );
pModule->self_loading_sel = SEL(sel);
FarSetOwner16( sel, pModule->self );
oldstack = NtCurrentTeb()->WOW32Reserved;
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR(pModule->self_loading_sel,
0xff00 - sizeof(STACK16FRAME) );
CURRENT_SS = pModule->self_loading_sel;
CURRENT_SP = 0xff00 - sizeof(STACK16FRAME);
hFile16 = NE_OpenFile(pModule);
TRACE_(dll)("CallBootAppProc(hModule=0x%04x,hf=0x%04x)\n",
@ -488,7 +487,8 @@ BOOL NE_LoadAllSegments( NE_MODULE *pModule )
WOWCallback16Ex( (DWORD)selfloadheader->BootApp, WCB16_PASCAL, sizeof(args), args, NULL );
TRACE_(dll)("Return from CallBootAppProc\n");
_lclose16(hFile16);
NtCurrentTeb()->WOW32Reserved = oldstack;
CURRENT_SS = old_ss;
CURRENT_SP = old_sp;
for (i = 2; i <= pModule->ne_cseg; i++)
if (!NE_LoadSegment( pModule, i )) return FALSE;
@ -680,7 +680,7 @@ static BOOL NE_InitDLL( NE_MODULE *pModule )
context.SegEs = ds; /* who knows ... */
context.SegCs = SEL(pSegTable[SELECTOROF(pModule->ne_csip)-1].hSeg);
context.Eip = OFFSETOF(pModule->ne_csip);
context.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
context.Ebp = CURRENT_SP + FIELD_OFFSET(STACK16FRAME,bp);
pModule->ne_csip = 0; /* Don't initialize it twice */
TRACE_(dll)("Calling LibMain for %.*s, cs:ip=%04x:%04x ds=%04x di=%04x cx=%04x\n",
@ -782,7 +782,7 @@ static void NE_CallDllEntryPoint( NE_MODULE *pModule, DWORD dwReason )
context.SegEs = ds; /* who knows ... */
context.SegCs = HIWORD(entryPoint);
context.Eip = LOWORD(entryPoint);
context.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
context.Ebp = CURRENT_SP + FIELD_OFFSET(STACK16FRAME,bp);
args[7] = HIWORD(dwReason);
args[6] = LOWORD(dwReason);

37
dlls/krnl386.exe16/task.c
View file

@ -624,7 +624,7 @@ void WINAPI InitTask16( CONTEXT *context )
/* Initialize the INSTANCEDATA structure */
pinstance = MapSL( MAKESEGPTR(CURRENT_DS, 0) );
pinstance->stackmin = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + sizeof( STACK16FRAME );
pinstance->stackmin = CURRENT_SP + sizeof( STACK16FRAME );
pinstance->stackbottom = pinstance->stackmin; /* yup, that's right. Confused me too. */
pinstance->stacktop = ( pinstance->stackmin > LOWORD(context->Ebx) ?
pinstance->stackmin - LOWORD(context->Ebx) : 0 ) + 150;
@ -1094,17 +1094,15 @@ void WINAPI SwitchStackTo16( WORD seg, WORD ptr, WORD top )
UINT16 copySize;
if (!(pData = GlobalLock16( seg ))) return;
TRACE("old=%04x:%04x new=%04x:%04x\n",
SELECTOROF( NtCurrentTeb()->WOW32Reserved ),
OFFSETOF( NtCurrentTeb()->WOW32Reserved ), seg, ptr );
TRACE( "old=%04x:%04x new=%04x:%04x\n", CURRENT_SS, CURRENT_SP, seg, ptr );
/* Save the old stack */
oldFrame = CURRENT_STACK16;
/* pop frame + args and push bp */
pData->old_ss_sp = (SEGPTR)NtCurrentTeb()->WOW32Reserved + sizeof(STACK16FRAME)
+ 2 * sizeof(WORD);
*(WORD *)MapSL(pData->old_ss_sp) = oldFrame->bp;
pData->old_ss = CURRENT_SS;
pData->old_sp = CURRENT_SP + sizeof(STACK16FRAME) + 2 * sizeof(WORD);
*(WORD *)MapSL(MAKESEGPTR(pData->old_ss, pData->old_sp)) = oldFrame->bp;
pData->stacktop = top;
pData->stackmin = ptr;
pData->stackbottom = ptr;
@ -1114,9 +1112,10 @@ void WINAPI SwitchStackTo16( WORD seg, WORD ptr, WORD top )
/* Note: we need to take the 3 arguments into account; otherwise,
* the stack will underflow upon return from this function.
*/
copySize = oldFrame->bp - OFFSETOF(pData->old_ss_sp);
copySize = oldFrame->bp - pData->old_sp;
copySize += 3 * sizeof(WORD) + sizeof(STACK16FRAME);
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( seg, ptr - copySize );
CURRENT_SS = seg;
CURRENT_SP = ptr - copySize;
newFrame = CURRENT_STACK16;
/* Copy the stack frame and the local variables to the new stack */
@ -1135,29 +1134,29 @@ void WINAPI SwitchStackBack16( CONTEXT *context )
STACK16FRAME *oldFrame, *newFrame;
INSTANCEDATA *pData;
if (!(pData = GlobalLock16(SELECTOROF(NtCurrentTeb()->WOW32Reserved))))
if (!(pData = GlobalLock16(CURRENT_SS)))
return;
if (!pData->old_ss_sp)
if (!pData->old_ss)
{
WARN("No previous SwitchStackTo\n" );
return;
}
TRACE("restoring stack %04x:%04x\n",
SELECTOROF(pData->old_ss_sp), OFFSETOF(pData->old_ss_sp) );
TRACE( "restoring stack %04x:%04x\n", pData->old_ss, pData->old_sp );
oldFrame = CURRENT_STACK16;
/* Pop bp from the previous stack */
context->Ebp = (context->Ebp & ~0xffff) | *(WORD *)MapSL(pData->old_ss_sp);
pData->old_ss_sp += sizeof(WORD);
context->Ebp = (context->Ebp & ~0xffff) | *(WORD *)MapSL(MAKESEGPTR(pData->old_ss, pData->old_sp));
pData->old_sp += sizeof(WORD);
/* Switch back to the old stack */
NtCurrentTeb()->WOW32Reserved = (void *)(pData->old_ss_sp - sizeof(STACK16FRAME));
context->SegSs = SELECTOROF(pData->old_ss_sp);
context->Esp = OFFSETOF(pData->old_ss_sp) - sizeof(DWORD); /*ret addr*/
pData->old_ss_sp = 0;
CURRENT_SS = pData->old_ss;
CURRENT_SP = pData->old_sp - sizeof(STACK16FRAME);
context->SegSs = pData->old_ss;
context->Esp = pData->old_sp - sizeof(DWORD); /*ret addr*/
pData->old_ss = pData->old_sp = 0;
/* Build a stack frame for the return */

42
dlls/krnl386.exe16/thunk.c
View file

@ -429,7 +429,7 @@ void WINAPI __regs_QT_Thunk( CONTEXT *context )
context16.Eip = LOWORD(context->Edx);
/* point EBP to the STACK16FRAME on the stack
* for the call_to_16 to set up the register content on calling */
context16.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
context16.Ebp = CURRENT_SP + FIELD_OFFSET(STACK16FRAME,bp);
/*
* used to be (problematic):
@ -450,8 +450,7 @@ void WINAPI __regs_QT_Thunk( CONTEXT *context )
/* make sure to update the Win32 ESP, too, in order to throw away
* the number of parameters that the Win16 function
* accepted (that it popped from the corresponding Win16 stack) */
context->Esp += LOWORD(context16.Esp) -
( OFFSETOF(NtCurrentTeb()->WOW32Reserved) - argsize );
context->Esp += LOWORD(context16.Esp) - (CURRENT_SP - argsize);
}
DEFINE_REGS_ENTRYPOINT( QT_Thunk )
@ -555,7 +554,7 @@ void WINAPI __regs_FT_Thunk( CONTEXT *context )
context16.SegCs = HIWORD(callTarget);
context16.Eip = LOWORD(callTarget);
context16.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
context16.Ebp = CURRENT_SP + FIELD_OFFSET(STACK16FRAME,bp);
argsize = context->Ebp-context->Esp-0x40;
if (argsize > sizeof(newstack)) argsize = sizeof(newstack);
@ -567,9 +566,7 @@ void WINAPI __regs_FT_Thunk( CONTEXT *context )
if (mapESPrelative & (1 << i))
{
SEGPTR *arg = (SEGPTR *)newstack[i];
*arg = MAKESEGPTR(SELECTOROF(NtCurrentTeb()->WOW32Reserved),
OFFSETOF(NtCurrentTeb()->WOW32Reserved) - argsize
+ (*(LPBYTE *)arg - oldstack));
*arg = MAKESEGPTR( CURRENT_SS, CURRENT_SP - argsize + (*(LPBYTE *)arg - oldstack));
}
WOWCallback16Ex( 0, WCB16_REGS, argsize, newstack, (DWORD *)&context16 );
@ -577,8 +574,7 @@ void WINAPI __regs_FT_Thunk( CONTEXT *context )
context->Edx = context16.Edx;
context->Ecx = context16.Ecx;
context->Esp += LOWORD(context16.Esp) -
( OFFSETOF(NtCurrentTeb()->WOW32Reserved) - argsize );
context->Esp += LOWORD(context16.Esp) - (CURRENT_SP - argsize);
/* Copy modified buffers back to 32-bit stack */
memcpy( oldstack, newstack, argsize );
@ -713,7 +709,7 @@ void WINAPI __regs_Common32ThkLS( CONTEXT *context )
context16.Edi = LOWORD(context->Ecx);
context16.SegCs = HIWORD(context->Eax);
context16.Eip = LOWORD(context->Eax);
context16.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
context16.Ebp = CURRENT_SP + FIELD_OFFSET(STACK16FRAME,bp);
argsize = HIWORD(context->Edx) * 4;
@ -769,7 +765,7 @@ void WINAPI __regs_OT_32ThkLSF( CONTEXT *context )
context16.SegCs = HIWORD(context->Edx);
context16.Eip = LOWORD(context->Edx);
context16.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
context16.Ebp = CURRENT_SP + FIELD_OFFSET(STACK16FRAME,bp);
argsize = 2 * *(WORD *)context->Esp + 2;
@ -781,8 +777,7 @@ void WINAPI __regs_OT_32ThkLSF( CONTEXT *context )
memcpy( (LPBYTE)context->Esp,
(LPBYTE)CURRENT_STACK16 - argsize, argsize );
context->Esp += LOWORD(context16.Esp) -
( OFFSETOF(NtCurrentTeb()->WOW32Reserved) - argsize );
context->Esp += LOWORD(context16.Esp) - (CURRENT_SP - argsize);
}
DEFINE_REGS_ENTRYPOINT( OT_32ThkLSF )
@ -1239,21 +1234,22 @@ void WINAPI __regs_K32Thk1632Prolog( CONTEXT *context )
WORD stackSel = SELECTOROF(frame32->frame16);
DWORD stackBase = GetSelectorBase(stackSel);
TRACE("before SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %p\n",
context->Ebp, context->Esp, NtCurrentTeb()->WOW32Reserved);
TRACE("before SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %04x:%04x\n",
context->Ebp, context->Esp, CURRENT_SS, CURRENT_SP);
memset(frame16, '\0', sizeof(STACK16FRAME));
frame16->frame32 = frame32;
frame16->ebp = context->Ebp;
memcpy(stack32, stack16, argSize);
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR(stackSel, (DWORD)frame16 - stackBase);
CURRENT_SS = stackSel;
CURRENT_SP = (DWORD)frame16 - stackBase;
context->Esp = (DWORD)stack32 + 4;
context->Ebp = context->Esp + argSize;
TRACE("after SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %p\n",
context->Ebp, context->Esp, NtCurrentTeb()->WOW32Reserved);
TRACE("after SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %04x:%04x\n",
context->Ebp, context->Esp, CURRENT_SS, CURRENT_SP);
}
/* entry_point is never used again once the entry point has
@ -1283,16 +1279,16 @@ void WINAPI __regs_K32Thk1632Epilog( CONTEXT *context )
DWORD nArgsPopped = context->Esp - (DWORD)stack32;
TRACE("before SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %p\n",
context->Ebp, context->Esp, NtCurrentTeb()->WOW32Reserved);
TRACE("before SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %04x:%04x\n",
context->Ebp, context->Esp, CURRENT_SS, CURRENT_SP);
NtCurrentTeb()->WOW32Reserved = frame16->frame32;
context->Esp = (DWORD)stack16 + nArgsPopped;
context->Ebp = frame16->ebp;
TRACE("after SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %p\n",
context->Ebp, context->Esp, NtCurrentTeb()->WOW32Reserved);
TRACE("after SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %04x:%04x\n",
context->Ebp, context->Esp, CURRENT_SS, CURRENT_SP);
}
}
DEFINE_REGS_ENTRYPOINT( K32Thk1632Epilog )
@ -2303,7 +2299,7 @@ void WINAPI Throw16( LPCATCHBUF lpbuf, INT16 retval, CONTEXT *context )
frame32 = pFrame->frame32;
while (frame32 && frame32->frame16)
{
if (OFFSETOF(frame32->frame16) < OFFSETOF(NtCurrentTeb()->WOW32Reserved))
if (OFFSETOF(frame32->frame16) < CURRENT_SP)
break; /* Something strange is going on */
if (OFFSETOF(frame32->frame16) > lpbuf[2])
{

15
dlls/krnl386.exe16/wowthunk.c
View file

@ -412,8 +412,7 @@ BOOL WINAPI K32WOWCallback16Ex( DWORD vpfn16, DWORD dwFlags,
TRACE_(relay)( "\1CallTo16(func=%04x:%04x", context->SegCs, LOWORD(context->Eip) );
while (count) TRACE_(relay)( ",%04x", wstack[--count] );
TRACE_(relay)( ") ss:sp=%04x:%04x ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x bp=%04x ds=%04x es=%04x\n",
SELECTOROF(NtCurrentTeb()->WOW32Reserved),
OFFSETOF(NtCurrentTeb()->WOW32Reserved),
CURRENT_SS, CURRENT_SP,
(WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
(WORD)context->Edx, (WORD)context->Esi, (WORD)context->Edi,
(WORD)context->Ebp, (WORD)context->SegDs, (WORD)context->SegEs );
@ -443,8 +442,7 @@ BOOL WINAPI K32WOWCallback16Ex( DWORD vpfn16, DWORD dwFlags,
if (TRACE_ON(relay))
{
TRACE_(relay)( "\1RetFrom16() ss:sp=%04x:%04x ax=%04x bx=%04x cx=%04x dx=%04x bp=%04x sp=%04x\n",
SELECTOROF(NtCurrentTeb()->WOW32Reserved),
OFFSETOF(NtCurrentTeb()->WOW32Reserved),
CURRENT_SS, CURRENT_SP,
(WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
(WORD)context->Edx, (WORD)context->Ebp, (WORD)context->Esp );
SYSLEVEL_CheckNotLevel( 2 );
@ -460,10 +458,9 @@ BOOL WINAPI K32WOWCallback16Ex( DWORD vpfn16, DWORD dwFlags,
WORD * wstack = (WORD *)stack;
TRACE_(relay)( "\1CallTo16(func=%04x:%04x,ds=%04x",
HIWORD(vpfn16), LOWORD(vpfn16), SELECTOROF(NtCurrentTeb()->WOW32Reserved) );
HIWORD(vpfn16), LOWORD(vpfn16), CURRENT_SS );
while (count) TRACE_(relay)( ",%04x", wstack[--count] );
TRACE_(relay)( ") ss:sp=%04x:%04x\n", SELECTOROF(NtCurrentTeb()->WOW32Reserved),
OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
TRACE_(relay)( ") ss:sp=%04x:%04x\n", CURRENT_SS, CURRENT_SP );
SYSLEVEL_CheckNotLevel( 2 );
}
@ -485,9 +482,7 @@ BOOL WINAPI K32WOWCallback16Ex( DWORD vpfn16, DWORD dwFlags,
if (TRACE_ON(relay))
{
TRACE_(relay)( "\1RetFrom16() ss:sp=%04x:%04x retval=%08x\n",
SELECTOROF(NtCurrentTeb()->WOW32Reserved),
OFFSETOF(NtCurrentTeb()->WOW32Reserved), ret );
TRACE_(relay)( "\1RetFrom16() ss:sp=%04x:%04x retval=%08x\n", CURRENT_SS, CURRENT_SP, ret );
SYSLEVEL_CheckNotLevel( 2 );
}
}

2
dlls/system.drv16/system.c
View file

@ -70,7 +70,7 @@ static void CALLBACK SYSTEM_TimerTick( LPVOID arg, DWORD low, DWORD high )
memset( &context, 0, sizeof(context) );
context.SegCs = SELECTOROF( proc );
context.Eip = OFFSETOF( proc );
context.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME, bp);
context.Ebp = CURRENT_SP + FIELD_OFFSET(STACK16FRAME, bp);
context.Eax = i + 1;
WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );

6
dlls/user.exe16/message.c
View file

@ -240,11 +240,11 @@ static LRESULT call_window_proc16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam, LPA
/* Window procedures want ax = hInstance, ds = es = ss */
memset(&context, 0, sizeof(context));
context.SegDs = context.SegEs = SELECTOROF(NtCurrentTeb()->WOW32Reserved);
context.SegDs = context.SegEs = CURRENT_SS;
if (!(context.Eax = GetWindowWord( HWND_32(hwnd), GWLP_HINSTANCE ))) context.Eax = context.SegDs;
context.SegCs = SELECTOROF(func);
context.Eip = OFFSETOF(func);
context.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME, bp);
context.Ebp = CURRENT_SP + FIELD_OFFSET(STACK16FRAME, bp);
if (lParam)
{
@ -267,7 +267,7 @@ static LRESULT call_window_proc16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam, LPA
if (size)
{
memcpy( &args.u, MapSL(lParam), size );
lParam = PtrToUlong(NtCurrentTeb()->WOW32Reserved) - size;
lParam = MAKESEGPTR( CURRENT_SS, CURRENT_SP - size );
}
}

2
include/wine/winbase16.h
View file

@ -564,5 +564,7 @@ BOOL16 WINAPI WriteProfileSection16(LPCSTR,LPCSTR);
#define CURRENT_STACK16 ((STACK16FRAME *)MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved))
#define CURRENT_DS (CURRENT_STACK16->ds)
#define CURRENT_SP (((WORD *)&NtCurrentTeb()->WOW32Reserved)[0])
#define CURRENT_SS (((WORD *)&NtCurrentTeb()->WOW32Reserved)[1])
#endif /* __WINE_WINE_WINBASE16_H */