On Monday, April 18, 2016 6:18:45 PM CEST David Ahern wrote:
> On 4/18/16 6:07 PM, Mark Davis wrote:
> >     Auto-detecting system features:
> >      ...                     backtrace: [ on  ]
> >      ...                         dwarf: [ OFF ]
> >      ...                fortify-source: [ on  ]
> >      ...                         glibc: [ on  ]
> >      ...                          gtk2: [ on  ]
> >      ...                  gtk2-infobar: [ on  ]
> >      ...                      libaudit: [ OFF ]
> >      ...                        libbfd: [ OFF ]
> >      ...                        libelf: [ OFF ]
> 
> Install those 2 development packages.

And if that is still not helping, you may run into the case where the samples 
are recorded in a library (like libstdc++, libc,...) which was provided by 
your distribution without frame pointers. In such a case, the backtrace will 
still be broken.

If you want to use frame pointers, and operate on user space code, my advise 
is to recompile all dependencies with frame pointers. On Yocto/Gentoo that is 
easily doable, elsewhere you'll have a hard time and waste a ton of time.
I suggest you simply use Dwarf unwinding.

Bye

-- 
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