Symbol Resolution on .NET 4.0 NGEN x64 assembly not working

Question

My symbol resolution on an x64 NGEN .NET 4.0 assembly it not working.

Details:

I have a .NET 4.0 command line assembly that I am compiling using Visual Studio with an x64 configuration. After I compile, I run NGEN (The 64 bit version) on it.

Having failed with XPERF analysing the callstacks (with -stackwalk profile) which won't resolve my symbols. I am now trying Perfmonitor from here: http://bcl.codeplex.com/releases/view/42784

I have done these steps and would have expected the call stacks to resolve:

Start the NGEN'ed x64 app
PerfMonitor Collect
Perfmonitor Merge
Perfmonitor Analyze

... Unfortunately, the stack traces don't work in PerfMonitor either.

I also tried running the app as a 32-bit - same issues. My symbols check out fine with symchk /v

I am at a loss on how to debug this broken stack trace functionality.

score 1 · Answer 1 · answered Jul 16 '12 at 17:09

1

Not sure if I understand correctly, but you need to generate profilable NGEN 'assemblies'.

IOW: ngen install ass.dll /profile

answered Jul 16 '12 at 17:09

leppie

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Trying this right away. Will let you know if it fixes it. Thanks for fast reply – Thomas Kejser Jul 16 '12 at 17:16
@ThomasKejser: You could throw in the `/debug` flag in too perhaps :) – leppie Jul 16 '12 at 17:16
No luck I am afraid. Still same issue – Thomas Kejser Jul 16 '12 at 17:18
@ThomasKejser: :( I'll leave my answer here, so future people know we covered this base. – leppie Jul 16 '12 at 17:37

score 0 · Answer 2 · answered Dec 03 '12 at 14:39

0

You need the xperf Version from the Windows 8 SDK. This version supports .net. Start a trace with the new Performance Recorder UI and this tool generates PDBs for ngened .net components so that xperfview and WPA can decode the callstack.

answered Dec 03 '12 at 14:39

magicandre1981

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Symbol Resolution on .NET 4.0 NGEN x64 assembly not working

2 Answers2

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