GCC stack backtraces

Florian Weimer fweimer@redhat.com
Thu Aug 30 08:05:00 GMT 2012


On 08/29/2012 09:22 AM, Ian Lance Taylor wrote:

> It uses the GCC unwind interface to collect a stack trace, and parses
> DWARF debug info to get file/line/function information.  (Of course it's
> silly to write yet another DWARF reader, but I didn't find an existing
> reader that seemed wholly suitable.)  The code currently only works for
> ELF/DWARF, but it's designed to support other object file and debug
> formats should anybody care to write them.  Since its use in GCC would
> be purely for GCC developers, it's not essential that it be fully
> portable.

Sorry for not actually testing the patch, but does it handle inline 
functions?  ("addr2line -i" can print multiple source locations for a 
single stack frame.)

Support for /usr/lib/debug would be desirable, too.

-- 
Florian Weimer / Red Hat Product Security Team



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