demangling of @plt entries
Hey all,
both perf and c++filt seem to have a problem with demangling @plt symbols:
c++filt _ZNK12QMapNodeBase8nextNodeEv@plt
_ZNK12QMapNodeBase8nextNodeEv@plt
c++filt _ZNK12QMapNodeBase8nextNodeEvQMapNodeBase::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
Signature · 4 lines
Milian Wolff | [email protected] | Software Engineer KDAB (Deutschland) GmbH&Co KG, a KDAB Group company Tel: +49-30-521325470 KDAB - The Qt Experts
Quoted 3 lines · Milian Wolff
c++filt --version
GNU c++filt (GNU Binutils) 2.25.1
I had a similar patch before, but it seems the problem disappears when binutils (or rather libiberty) is updated.
-Andi
Quoted 6 lines · On Sonntag, 4. Oktober 2015 09:03:16 CEST Andi Kleen wrote:
Quoted 2 lines · Milian Wolff
c++filt --version
GNU c++filt (GNU Binutils) 2.25.1I had a similar patch before, but it seems the problem disappears when binutils (or rather libiberty) is updated.
Are you running a self-compiled binutils from git? To my knowledge, 2.25.1 is the latest stable release.
But thanks, that at least tells me that I can wait and keep my patch local until a new binutils is released.
Bye
Signature · 4 lines
Milian Wolff | [email protected] | Software Engineer KDAB (Deutschland) GmbH&Co KG, a KDAB Group company Tel: +49-30-521325470 KDAB - The Qt Experts