On Thu, Apr 27, 2017 at 10:31:55AM +0200, Ulf Hermann wrote: > > Maybe something like the attached patch? > > Well that's actually the original patch (as opposed to V2) with relaxed test > conditions. You can write that a bit nicer by setting the new PC directly > after retrieving LR and returning early if it doesn't work. See "[PATCH 2/3] > Add frame pointer unwinding as fallback on arm" from February 16th. That's > the original algorithm; for aarch64 I just added a few defines and included > arm_unwind.c.
I think the simplier implementation with relaxed test is better. I'll adjust the patch to look more like your original. > It's in fact a bit annoying for my use case as the non-CFI stack sections > are mostly in between CFI-enabled stack sections here. However, I can accept > this. Does every fp-only frame gets duplicated after a DWARF CFI frame? I'll look if I can better understand why that is. Cheers, Mark
