The arm64 architecture originally made the signal context a fixed size
structure containing a linked list of records with the various kinds of
register and other state which may be present. When SVE was implemented
it was realised that it supported implementations with more state than
could fit in that structure so a new record type EXTRA_CONTEXT was
introduced allowing the signal context to be extended beyond the
original size. Unfortunately the signal handling tests can not cope with
these EXTRA_CONTEXT records at all - some support was implemented but it
simply never worked.
v2:
- Rebase onto v6.0-rc3
Mark Brown (10):
kselftest/arm64: Enumerate SME rather than SVE vector lengths for
za_regs
kselftest/arm64: Validate signal ucontext in place
kselftest/arm64: Fix validatation termination record after
EXTRA_CONTEXT
kselftest/arm64: Fix validation of EXTRA_CONTEXT signal context
location
kselftest/arm64: Remove unneeded protype for validate_extra_context()
kselftest/arm64: Only validate each signal context once
kselftest/arm64: Validate contents of EXTRA_CONTEXT blocks
kselftest/arm64: Preserve any EXTRA_CONTEXT in handle_signal_copyctx()
kselftest/arm64: Allow larger buffers in get_signal_context()
kselftest/arm64: Include larger SVE and SME VLs in signal tests
.../arm64/signal/test_signals_utils.c | 59 +++++++++++++++++--
.../arm64/signal/test_signals_utils.h | 5 +-
.../testcases/fake_sigreturn_bad_magic.c | 2 +-
.../testcases/fake_sigreturn_bad_size.c | 2 +-
.../fake_sigreturn_bad_size_for_magic0.c | 2 +-
.../fake_sigreturn_duplicated_fpsimd.c | 2 +-
.../testcases/fake_sigreturn_misaligned_sp.c | 2 +-
.../testcases/fake_sigreturn_missing_fpsimd.c | 2 +-
.../testcases/fake_sigreturn_sme_change_vl.c | 2 +-
.../testcases/fake_sigreturn_sve_change_vl.c | 2 +-
.../selftests/arm64/signal/testcases/sme_vl.c | 2 +-
.../arm64/signal/testcases/ssve_regs.c | 25 +++-----
.../arm64/signal/testcases/sve_regs.c | 23 +++-----
.../selftests/arm64/signal/testcases/sve_vl.c | 2 +-
.../arm64/signal/testcases/testcases.c | 48 +++++++++++----
.../arm64/signal/testcases/testcases.h | 9 ++-
.../arm64/signal/testcases/za_regs.c | 28 ++++-----
17 files changed, 137 insertions(+), 80 deletions(-)
base-commit: b90cb1053190353cc30f0fef0ef1f378ccc063c5
--
2.30.2
