Add stubs for C++ exception and purecall handlers

xtoskrnl/rtl/i686/exsup.cc

@@ -4,6 +4,7 @@
  * FILE:            xtoskrnl/rtl/i686/exsup.cc
  * DESCRIPTION:     Exception handling for i686 architecture
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <harraiken91@gmail.com>
  */
 
 #include <xtos.hh>
@@ -23,6 +24,24 @@ __C_specific_handler(IN PEXCEPTION_RECORD ExceptionRecord,
     return ExceptionContinueExecution;
 }
 
+XTCLINK
+XTCDECL
+EXCEPTION_DISPOSITION
+ __CxxFrameHandler3(IN PEXCEPTION_RECORD ExceptionRecord,
+                     IN PVOID EstablisherFrame,
+                     IN OUT PCONTEXT ContextRecord,
+                     IN OUT PVOID DispatcherContext)
+{
+    UNIMPLEMENTED;
+
+    /* Disable interrupts and hang */
+    AR::CpuFunc::ClearInterruptFlag();
+    KE::Crash::Panic(0); // CXX_FRAME_HANDLER_CALLED
+
+    /* Continue search */
+    return ExceptionContinueSearch;
+}
+
 XTCLINK
 XTCDECL
 INT
@@ -36,3 +55,15 @@ _except_handler3(PEXCEPTION_RECORD ExceptionRecord,
     /* Handler not found */
     return 0;
 }
+
+XTCLINK
+XTCDECL
+VOID
+_purecall(VOID)
+{
+    UNIMPLEMENTED;
+
+    /* Disable interrupts and hang */
+    AR::CpuFunc::ClearInterruptFlag();
+    KE::Crash::Panic(0); // PURE_VIRTUAL_FUNCTION_CALL
+}