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[Bug libdw/21174] libdw with perf: duplication of entries in callstack
- From: "mark at klomp dot org" <sourceware-bugzilla at sourceware dot org>
- To: elfutils-devel at sourceware dot org
- Date: Fri, 17 Feb 2017 09:10:49 +0000
- Subject: [Bug libdw/21174] libdw with perf: duplication of entries in callstack
- Auto-submitted: auto-generated
- References: <bug-21174-10460@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=21174
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
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CC| |mark at klomp dot org
--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
There is no good way to tell. It could happen if the function calls itself
(although you would expect the pc to be different). How does perf call the
libdw getframe function? What does the CFI look like at that address?
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