--- //depot/sdk/Python23/Stackless/stackless_structs.h  2005/12/21 14:52:21
+++ //depot/sdk/Python23/Stackless/stackless_structs.h  2007/03/27 11:49:13
@@ -6,6 +6,9 @@
 #endif


+/* platform specific constants (mainly SEH stuff to store )*/
+#include "slp_platformselect.h"
+

 /*** important structures: tasklet ***/

@@ -105,6 +108,9 @@
        struct _tasklet *task;
        int nesting_level;
        PyThreadState *tstate;
+#ifdef _SEH32
+       DWORD exception_list; /* SEH handler on Win32 */
+#endif
        intptr_t *startaddr;
     intptr_t stack[1];
 } PyCStackObject;

--- //depot/sdk/Python23/Stackless/stacklesseval.c      2005/12/21 14:52:21
+++ //depot/sdk/Python23/Stackless/stacklesseval.c      2007/03/27 11:49:13
@@ -122,6 +122,11 @@
        (*cst)->task = task;
        (*cst)->tstate = ts;
        (*cst)->nesting_level = ts->st.nesting_level;
+#ifdef _SEH32
+       //save the SEH handler
+       (*cst)->exception_list = (DWORD)
+                    __readfsdword(FIELD_OFFSET(NT_TIB, ExceptionList));
+#endif
     return *cst;
 }

@@ -130,6 +135,11 @@
 {
     size_t stsizeb = (cstprev)->ob_size * sizeof(intptr_t);
     memcpy((cstprev)->stack, (cstprev)->startaddr - (cstprev)->ob_size, stsizeb);
+#ifdef _SEH32
+       //save the SEH handler
+       cstprev->exception_list = (DWORD)
+                    __readfsdword(FIELD_OFFSET(NT_TIB, ExceptionList));
+#endif
        return stsizeb;
 }

@@ -139,6 +149,10 @@
        /* mark task as no longer responsible for cstack instance */
        cst->task = NULL;
     memcpy(cst->startaddr - cst->ob_size, &cst->stack, (cst->ob_size) * sizeof(intptr_t));
+#ifdef _SEH32
+       //restore the SEH handler
+       __writefsdword(FIELD_OFFSET(NT_TIB, ExceptionList), (DWORD)(cst->exception_list));
+#endif
 }



--- //depot/sdk/Python23/Stackless/switch_x86_msvc.h    2005/04/25 20:31:12
+++ //depot/sdk/Python23/Stackless/switch_x86_msvc.h    2007/03/27 11:49:13
@@ -22,6 +22,16 @@
  *      Initial final version after lots of iterations for i386.
  */

+/* for the SEH things */
+#ifndef _WINDOWS_
+#define WIN32_LEAN_AND_MEAN
+#ifdef BYTE
+#undef BYTE
+#endif
+#include <windows.h>
+#endif
+#define _SEH32
+
 #define alloca _alloca

 #define STACK_REFPLUS 1