frame unwinding patches
Mon Apr 3 21:23:00 GMT 2017
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:
> 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.
More information about the Elfutils-devel