demangling of @plt entries

[Milian Wolff <milian.wolff@kdab.com>]

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Hey all,

both perf and c++filt seem to have a problem with demangling @plt symbols:

c++filt _ZNK12QMapNodeBase8nextNodeEv@plt
_ZNK12QMapNodeBase8nextNodeEv@plt

c++filt _ZNK12QMapNodeBase8nextNodeEv
QMapNodeBase::nextNode() const

My question is: Should perf prevent this? I have a patch locally to just 
demangle symbols up to the @plt at the end, i.e. ignoring it. This fixes the 
problem for me.

But I'm not so sure - sounds like this is something that would be better fixed 
globally. I found https://sourceware.org/bugzilla/show_bug.cgi?id=12021 but 
that says it should be fixed already. Can anyone else reproduce this? Where 
should this be fixed, can anyone point me to a software repository?

c++filt --version
GNU c++filt (GNU Binutils) 2.25.1

perf from current acme/perf/core

Thanks
-- 
Milian Wolff | milian.wolff@kdab.com | Software Engineer
KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
Tel: +49-30-521325470
KDAB - The Qt Experts

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