tree cf5b05ada810ca1408e05d27fc03a52b6d6f0b02
parent b0ef2a4e274968edced6edce6e6c9759524995ef
author David Brazdil <dbrazdil@google.com> 1576770372 +0000
committer David Brazdil <dbrazdil@google.com> 1576835590 +0000

Simplify noreturn exception vectors for current EL

All handlers for current EL exceptions panic and never return. Create
noreturn_* variants of exception vector macros without a return path.
Also rename the C handlers to make it clearer in the assembly that these
are not expected to return.

This is done in preparation for inserting speculation barriers after
ERETs, removing the _sp0 handlers which use all the 32 instructions
available in a vector table entry.

Change-Id: If6616686d9a28820ed223e4d3d0e9cdfc3271e52