The last relay patch made it possible to simplify
raw mode switch handling. Some rather complex code
can now be deleted.
Changelog:
Remove unnecessary __wine_call_from_16_regs call frame
management code from raw mode switch handler.
Index: dlls/winedos/dosexe.h
===================================================================
RCS file: /home/wine/wine/dlls/winedos/dosexe.h,v
retrieving revision 1.28
diff -u -r1.28 dosexe.h
--- dlls/winedos/dosexe.h 30 Jun 2003 02:03:48 -0000 1.28
+++ dlls/winedos/dosexe.h 20 Aug 2003 16:47:56 -0000
@@ -28,7 +28,6 @@
#include "miscemu.h"
struct _DOSEVENT;
-struct _STACK16FRAME;
/* amount of space reserved for relay stack */
#define DOSVM_RELAY_DATA_SIZE 4096
@@ -256,8 +255,6 @@
/* relay.c */
void DOSVM_RelayHandler( CONTEXT86 * );
-void DOSVM_SaveCallFrame( CONTEXT86 *, struct _STACK16FRAME * );
-void DOSVM_RestoreCallFrame( CONTEXT86 *, struct _STACK16FRAME * );
void DOSVM_BuildCallFrame( CONTEXT86 *, DOSRELAY, LPVOID );
/* soundblaster.c */
Index: dlls/winedos/relay.c
===================================================================
RCS file: /home/wine/wine/dlls/winedos/relay.c,v
retrieving revision 1.3
diff -u -r1.3 relay.c
--- dlls/winedos/relay.c 19 Aug 2003 00:59:23 -0000 1.3
+++ dlls/winedos/relay.c 20 Aug 2003 16:37:31 -0000
@@ -172,81 +172,6 @@
/**********************************************************************
- * DOSVM_SaveCallFrame
- *
- * Save current call frame. This routine must be called from DOSRELAY
- * called using DOSVM_BuildCallFrame before the relay modifies stack
- * pointer. This routine makes sure that the relay can return safely
- * to application context and that no memory is leaked.
- *
- * Note: If DOSVM_BuildCallFrame was called using 32-bit CS or SS,
- * old values of CS and SS will be lost. This does not matter
- * since this routine is only used by Raw Mode Switch.
- */
-void DOSVM_SaveCallFrame( CONTEXT86 *context, STACK16FRAME *frame )
-{
- *frame = *CURRENT_STACK16;
-
- /*
- * If context is using allocated stack, release it.
- */
- if (context->SegSs == DOSVM_dpmi_segments->relay_data_sel)
- {
- RELAY_Stack16 *stack = RELAY_GetPointer( context->Esp );
-
- if (!stack->inuse ||
- stack->stack_bottom != RELAY_MAGIC ||
- stack->stack_top != RELAY_MAGIC)
- ERR( "Stack corrupted!\n" );
-
- stack->inuse = 0;
- }
-}
-
-
-/**********************************************************************
- * DOSVM_RestoreCallFrame
- *
- * Restore saved call frame to currect stack. This routine must always
- * be called after DOSVM_SaveCallFrame has been called and before returning
- * from DOSRELAY.
- */
-void DOSVM_RestoreCallFrame( CONTEXT86 *context, STACK16FRAME *frame )
-{
- /*
- * Allocate separate stack for relay call.
- */
- RELAY_MakeShortContext( context );
-
- /*
- * After this function returns to relay code, protected mode
- * 16 bit stack will contain STACK16FRAME and single WORD
- * (EFlags, see next comment).
- */
- NtCurrentTeb()->cur_stack =
- MAKESEGPTR( context->SegSs,
- context->Esp - sizeof(STACK16FRAME) - sizeof(WORD) );
-
- /*
- * After relay code returns to glue function, protected
- * mode 16 bit stack will contain interrupt return record:
- * IP, CS and EFlags. Since EFlags is ignored, it won't
- * need to be initialized.
- */
- context->Esp -= 3 * sizeof(WORD);
-
- /*
- * Restore stack frame so that relay code won't be confused.
- * It should be noted that relay code overwrites IP and CS
- * in STACK16FRAME with values taken from current CONTEXT86.
- * These values are what is returned to glue function
- * (see previous comment).
- */
- *CURRENT_STACK16 = *frame;
-}
-
-
-/**********************************************************************
* DOSVM_BuildCallFrame
*
* Modifies the context so that return to context calls DOSRELAY and
Index: dlls/winedos/int31.c
===================================================================
RCS file: /home/wine/wine/dlls/winedos/int31.c,v
retrieving revision 1.27
diff -u -r1.27 int31.c
--- dlls/winedos/int31.c 8 Jul 2003 21:11:52 -0000 1.27
+++ dlls/winedos/int31.c 20 Aug 2003 16:37:39 -0000
@@ -675,11 +675,11 @@
/**********************************************************************
- * RawModeSwitch (WINEDOS.@)
+ * DOSVM_RawModeSwitchHandler
*
* DPMI Raw Mode Switch handler
*/
-void WINAPI DOSVM_RawModeSwitch( CONTEXT86 *context )
+void WINAPI DOSVM_RawModeSwitchHandler( CONTEXT86 *context )
{
CONTEXT86 rm_ctx;
int ret;
@@ -764,23 +764,6 @@
SET_AX( context, 0x8024 ); /* invalid callback address */
SET_CFLAG(context);
}
-}
-
-
-/**********************************************************************
- * DOSVM_RawModeSwitchHandler
- *
- * DPMI Raw Mode Switch handler.
- * This routine does all the stack manipulation tricks needed
- * to return from protected mode interrupt using modified
- * code and stack pointers.
- */
-void WINAPI DOSVM_RawModeSwitchHandler( CONTEXT86 *context )
-{
- STACK16FRAME frame;
- DOSVM_SaveCallFrame( context, &frame );
- DOSVM_RawModeSwitch( context );
- DOSVM_RestoreCallFrame( context, &frame );
}
--
Jukka Heinonen <http://www.iki.fi/jhei/>
