On Thu, May 13, 2021 at 09:54:26AM -0700, Peter Collingbourne wrote: > The AAPCS places no requirements on the alignment of the frame > record. In theory it could be placed anywhere, although it seems > sensible to require it to be aligned to 8 bytes. With an upcoming > enhancement to tag-based KASAN Clang will begin creating frame records > located at an address that is only aligned to 8 bytes. Accommodate > such frame records in the stack unwinding code. Reviewed-by: Mark Brown