[LLVMdev] generating a dynamic callgraph with llvm-prof

[Sahoo, Swarup Kumar]

Yes, the latest version can be downloaded from here https://github.com/liuml07/giri . The LLVM instrumentation code is in TracingNoGiri.cpp<https://github.com/liuml07/giri/blob/master/lib/Giri/TracingNoGiri.cpp> file and runtime code in Tracing.cpp.

You may need to delete other unnecessary instrumentation code which you don't need.

Thanks,
Swarup.

________________________________
From: John Criswell [jtcriswel at gmail.com]
Sent: Sunday, August 17, 2014 2:25 PM
To: Eric Soderstrom; llvmdev
Cc: Sahoo, Swarup Kumar
Subject: Re: [LLVMdev] generating a dynamic callgraph with llvm-prof

Dear Eric,

Swarup and I wrote a dynamic slicing system called Giri several years ago that recorded the execution of every call instruction.  It's not in the LLVM tree, and I don't think it works with the latest version of LLVM, but it'll give you what you want.

Swarup, is that code publicly available somewhere?

Regards,

John Criswell

On 8/17/14, 12:40 PM, Eric Soderstrom wrote:
One can use "-insert-edge-profiling" with opt to collect general metrics (frequency of function execution, frequency of basic block execution). But I'd like to record all call information. So every time a function call is made, I'd like to record [calling function name, callee function name]

Is this feasible with with llvm-prof and any of the existing profiling options?



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