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Re: [Libunwind-devel] libunwind, perf and DWARF callchains

From: Arun Sharma
Subject: Re: [Libunwind-devel] libunwind, perf and DWARF callchains
Date: Fri, 31 Jan 2014 09:47:31 -0800

On Thu, Jan 23, 2014 at 7:07 AM, Mauro Andreolini
<address@hidden> wrote:

> To which function would 0x7facc1df12a0 match? It does not even seem to
> be in the mapped address space of "ls". I am clueless.

Did you try asking the perf guys who did the integration? It'd be
useful to compile libunwind with --enable-debug and then get a trace
around what happened during unwinding of this particular address.

If this is happening only in glibc, there is a good chance that there
is a piece of hand written assembly and some dwarf CFI that libunwind
doesn't understand yet.


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