6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
Summary: Add support for chaining Windows UnhandledExceptionFilter handlers
Reviewed-by: kamg, dholmes, never, acorn, ikrylov
--- a/hotspot/src/os/windows/vm/os_windows.cpp Wed Jan 13 09:39:46 2010 -0700
+++ b/hotspot/src/os/windows/vm/os_windows.cpp Tue Feb 02 10:37:32 2010 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -142,6 +142,9 @@
}
#ifndef _WIN64
+// previous UnhandledExceptionFilter, if there is one
+static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL;
+
LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo);
#endif
void os::init_system_properties_values() {
@@ -260,7 +263,8 @@
}
#ifndef _WIN64
- SetUnhandledExceptionFilter(Handle_FLT_Exception);
+ // set our UnhandledExceptionFilter and save any previous one
+ prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception);
#endif
// Done
@@ -1909,7 +1913,7 @@
#ifndef _WIN64
//-----------------------------------------------------------------------------
LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) {
- // handle exception caused by native mothod modifying control word
+ // handle exception caused by native method modifying control word
PCONTEXT ctx = exceptionInfo->ContextRecord;
DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode;
@@ -1930,6 +1934,13 @@
return EXCEPTION_CONTINUE_EXECUTION;
}
}
+
+ if (prev_uef_handler != NULL) {
+ // We didn't handle this exception so pass it to the previous
+ // UnhandledExceptionFilter.
+ return (prev_uef_handler)(exceptionInfo);
+ }
+
return EXCEPTION_CONTINUE_SEARCH;
}
#else //_WIN64