tree d92bd265d0469269fad8dec0b6817f953dcb14aa
parent 069d07396e30aa9be396c1dd3fc158ac199e6843
author Ben Dooks <ben.dooks@codethink.co.uk> 1693915973 +0100
committer Leo Yu-Chi Liang <ycliang@andestech.com> 1712633378 +0800

riscv: add backtrace support

When debugging, it is useful to have a backtrace to find
out what is in the call stack as the previous function (RA)
may not have been the culprit.

Since this adds size to the build, do not add it by default
and avoid putting it in the SPL build if not needed.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Tested-by: Leo Yu-Chi Liang <ycliang@andestech.com>