Re: CVS commit: src/sys/lib/libunwind

[Joerg Sonnenberger <joerg%bec.de@localhost>]

On Mon, May 31, 2021 at 12:12:24PM +0000, Rin Okuyama wrote:
> There are two numbering schemes for VFPv2 registers: s0-s31 and d0-d15.
> The former is used by GCC, and the latter is by LLVM. Since libunwind was
> derived from LLVM, it has never supported the former. This results in
> crashes for GCC-compiled binaries in exception handler of C++, if it
> encounters VFPv2 registers when unwinding frames.

This is only half correct. GCC actually switched at some point.

Joerg