On Mon, 03 Apr 2017 11:00:03 +0200, Milian Wolff wrote: > I just got a report from a colleague. As-is, elfutils would fail to unwind > from the following location in his application: > > 0x1137ca4 > > With the x86_64 patch applied, he got a proper backtrace:
S/he has something wrong with the compiler. With -fasynchronous-unwind-tables frame pointer unwinding is never needed and gcc defaults to -fasynchronous-unwind-tables on x86_64. This is why I haven't implemented it originally as it only paper overs the real problem and it leads to unreliable backtraces in longterm. Jan