On Sun, Jul 28, 2013 at 3:53 AM, Venkataramanan Kumar <venkataramanan.ku...@linaro.org> wrote: > Hi Maintainers, > > This patch adds supports to handle return address via. frame pointer.
I noticed this patch causes undefined behavior when -fomit-frame-pointer and __builtin_return_address(1) is used. On PowerPC it is defined correctly that is it generates a frame for that case. Now on x86_64 it might be undefined but I think that is just wrong since __builtin_return_address is just used for debugging anyways. Thanks, Andrew > > gcc/ChangeLog > --------------------- > > 2013-07-28 Venkataramanan Kumar <venkataramanan.ku...@linaro.org> > > * config/aarch64/aarch64.c (aarch64_return_addr): Handle returning > address from a frame. > > > Regression tested with aarch64-none-elf with V8 foundation model. > > regards, > Venkat.
