On Wed, Feb 03, 2021 at 02:58:56PM -0800, Yu-cheng Yu wrote:

Indirect branch tracking is a hardware security feature that verifies near
indirect call/jump instructions arrive at intended targets, which are
labeled by the compiler with ENDBR opcodes.  If such instructions reach
unlabeled locations, the processor raises control-protection faults.

Check the compiler is up-to-date at config time.

Signed-off-by: Yu-cheng Yu <redacted>

Reviewed-by: Kees Cook <redacted>

-- 
Kees Cook