On 28/03/16 08:50, Anton Kozlov wrote: > May be I missed something, and there is some general-purpose way for > perf to unwind custom frame layout, as it is in aarch32-port? I haven't looked. Valgrind has its own unwinder which uses the DWARF info, and GCC people will tell you that's the only right way to do it. What does x86-64 do? Andrew.