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SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
copyrights:
- Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
enabled-by: sparc/gr712rc
links:
- role: validation
uid: ../req/errata-gr712rc-20
method: by-inspection
references:
- identifier: cpukit/score/cpu/sparc/syscall.S
hash: QDjhpRe0UrN3OhoVJEGSnJU0028ZHBGjXYFXrZsRwO4=
type: file
text: |
The ``syscall_irqdis_fp`` trap handler always jumps back to a floating-point
instruction, thus no workaround is necessary.
The ``syscall_lazy_fp_switch`` trap handler always jumps back to a
floating-point instruction or terminates the system with a jump to
``_Internal_error()``, thus no workaround is necessary. The
``_Internal_error()`` function starts with a ``save`` instruction. Also this
function terminates the system, so that the ``rett`` instruction should never
be in the instruction cache since the code path is only executed once.
type: validation
|
