[ros-diffs] [tkreuzer] 39074: ntoskrnl/Ke: setup stack segment selector in KeSetupsStackAndInitializeKernel, comment out decrement of Rip on int3 dispatch (needs further investigation), use CONTEXT_ALL flags when creating the CONTEXT from the trap frame in KeDispatchException

Author: tkreuzer
Date: Sat Jan 24 19:17:04 2009
New Revision: 39074

URL: http://svn.reactos.org/svn/reactos?rev=39074&view=rev
Log:
ntoskrnl/Ke: setup stack segment selector in KeSetupsStackAndInitializeKernel, comment out
decrement of Rip on int3 dispatch (needs further investigation), use CONTEXT_ALL flags
when creating the CONTEXT from the trap frame in KeDispatchException

Modified:
    branches/ros-amd64-bringup/reactos/ntoskrnl/ke/amd64/boot.S
    branches/ros-amd64-bringup/reactos/ntoskrnl/ke/amd64/except.c

Modified: branches/ros-amd64-bringup/reactos/ntoskrnl/ke/amd64/boot.S
URL:
http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/ntosk…
==============================================================================
--- branches/ros-amd64-bringup/reactos/ntoskrnl/ke/amd64/boot.S [iso-8859-1] (original)
+++ branches/ros-amd64-bringup/reactos/ntoskrnl/ke/amd64/boot.S [iso-8859-1] Sat Jan 24
19:17:04 2009
@@ -49,6 +49,8 @@
     mov rsi, rsp
 
     /* Setup the new stack */
+    mov ax, 0x18
+    mov ss, ax
     mov rsp, r8
     sub rsp, 0x300 // FIXME
 

Modified: branches/ros-amd64-bringup/reactos/ntoskrnl/ke/amd64/except.c
URL:
http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/ntosk…
==============================================================================
--- branches/ros-amd64-bringup/reactos/ntoskrnl/ke/amd64/except.c [iso-8859-1] (original)
+++ branches/ros-amd64-bringup/reactos/ntoskrnl/ke/amd64/except.c [iso-8859-1] Sat Jan 24
19:17:04 2009
@@ -107,14 +107,7 @@
     KeGetCurrentPrcb()->KeExceptionDispatchCount++;
 
     /* Set the context flags */
-    Context.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS;
-
-    /* Check if User Mode or if the debugger is enabled */
-    if ((PreviousMode == UserMode) || (KdDebuggerEnabled))
-    {
-        /* Add the FPU Flag */
-        Context.ContextFlags |= CONTEXT_FLOATING_POINT;
-    }
+    Context.ContextFlags = CONTEXT_ALL;
 
     /* Get a Context */
     KeTrapFrameToContext(TrapFrame, ExceptionFrame, &Context);
@@ -126,7 +119,8 @@
         case STATUS_BREAKPOINT:
 
             /* Decrement RIP by one */
-            Context.Rip--;
+            // FIXME: that doesn't work, why?
+//            Context.Rip--;
             break;
 
         /* Internal exception */