serviceability agent (SA) fix for VS2010 (6987812)

Daniel D. Daugherty daniel.daugherty at
Wed Dec 22 08:05:28 PST 2010

It occurs to me that some folks might want to look at the spec:

The Microsoft link has a click through agreement so I also provided
a link to a copy of the straight HTML that I found.


On 12/21/2010 4:26 PM, Daniel D. Daugherty wrote:
> Greetings,
> I would like to get a couple of code reviews for my fix to the
> following JDK7/HSX-20 bug:
>    6987812 2/3 SAJDI: "gHotSpotVMTypes was not initialized properly in
>                the remote process"
> Here is the URL for the webrev:
> Here is an overview of the changes:
> - Reorder the code in HotSpotTypeDataBase.readVMTypes() to lookup
>  and decode the 'gHotSpotVMTypes' symbol first. This should help
>  make any future failures in this area more consistent.
> - COFFFileParser changes:
>  - add comments to clarify some of the algorithms
>  - read 'Base Of Data' field in optional header when PE32
>    format COFF file is read
>  - change ExportDirectoryTableImpl to return the 'Export RVA' field
>    without modification and to return the 'Forwarder RVA' field
>    after adjusting the address into a file offset
> - update debugger/win32/coff/DumpExports to include more info about
>  the section headers and to dump the exported symbol info in a more
>  understandable order
> - update debugger/win32/coff/TestParser to more clearly access the
>  section header using 1-based indices instead of 0-based indices
> - update the static initializer in debugger/windbg/WindbgDebuggerLocal
>  to use different library loading logic for dbgeng.dll and dbghelp.dll.
>  The library pair is searched for in:
>   - $JAVA_HOME/jre/bin
>   - dir named by DEBUGGINGTOOLSFORWINDOWS environment variable
>   - the "Debugging Tools For Windows" program directory
>   - the "Debugging Tools For Windows (x86)" program directory
>   - the "Debugging Tools For Windows (x64)" program directory
>   - the system directory (WINDOWS/system32 is searched last)
> - the sawwindb.dll is now explicitly loaded from $JAVA_HOME/jre/bin
> Thanks, in advance, for any reviews.
> Dan

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