SECOND CALL: serviceability agent (SA) fix for VS2010 (6987812)

Daniel D. Daugherty daniel.daugherty at oracle.com
Wed Dec 22 15:15:11 PST 2010


Added original reviewer list back in since this is an open review...

Thanks for the review!

Dan


On 12/22/2010 3:54 PM, Swamy Venkataramanappa wrote:
> Dan,
>
> I did a quick review of your code and it looks good.
> I did not read Microsoft spec.
>
> Thanks,
> -Swamy
>
> On 12/22/2010 4:46 PM, Daniel D. Daugherty wrote:
>> Second Call!
>>
>> I'm trying to get this fix in before the holiday break.
>> This should take < 15 minutes unless you try reading the
>> Microsoft spec.... :-)
>>
>> Dan
>>
>>
>>
>> On 12/22/2010 9:05 AM, Daniel D. Daugherty wrote:
>>> It occurs to me that some folks might want to look at the spec:
>>>
>>> http://www.microsoft.com/whdc/system/platform/firmware/PECOFF.mspx
>>> http://kishorekumar.net/pecoff_v8.1.htm
>>>
>>> The Microsoft link has a click through agreement so I also provided
>>> a link to a copy of the straight HTML that I found.
>>>
>>> Dan
>>>
>>>
>>> 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:
>>>>
>>>>    http://cr.openjdk.java.net/~dcubed/6987812-webrev/0/
>>>>
>>>> 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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