Hi
this patchset aims to add the initial arch-specific arm64 support to
kselftest starting with signals-related test-cases.
A common internal test-case layout is proposed which then it is anyway
wired-up to the toplevel kselftest Makefile, so that it should be possible
at the end to run it on an arm64 target in the usual way with KSFT.
~/linux# make TARGETS=arm64 kselftest
New KSFT arm64 testcases live inside tools/testing/selftests/arm64 grouped by
family inside subdirectories: arm64/signal is the first family proposed with
this series. arm64/signal tests can be run via KSFT or standalone.
Thanks
Cristian
Notes:
-----
- further details in the included READMEs
- more tests still to be written (current strategy is going through the related
Kernel signal-handling code and write a test for each possible and sensible code-path)
A few ideas for more TODO testcases:
- fake_sigreturn_unmapped_sp: SP into unmapped addrs
- fake_sigreturn_kernelspace_sp: SP into kernel addrs
- fake_sigreturn_sve_bad_extra_context: SVE extra context badly formed
- mangle_sve_invalid_extra_context: SVE extra_context invalid
- SVE signal testcases and special handling will be part of an additional patch
still to be released
Changes:
--------
v3-->v4:
- rebased on v5.3-rc6
- added test descriptions
- fixed commit messages (imperative mood)
- added missing includes and removed unneeded ones
- added/used new get_starting_head() helper
- fixed/simplified signal.S::fakke_sigreturn()
- added set_regval() macro and .init initialization func
- better synchonization in get_current_context()
- macroization of mangle_pstate_invalid_mode_el
- splitted mangle_pstate_invalid_mode_el h/t
- removed standalone mode
- simplified CPU features checks
- fixed/refactored get_header() and validation routines
- simplfied docs
v2-->v3:
- rebased on v5.3-rc2
- better test result characterization looking for
SEGV_ACCERR in si_code on SIGSEGV
- using KSFT Framework macros for retvalues
- removed SAFE_WRITE()/dump_uc: buggy, un-needed and unused
- reviewed generation process of test_arm64_signals.sh runner script
- re-added a fixed fake_sigreturn_misaligned_sp testcase and a properly
extended fake_sigreturn() helper
- added tests' TODO notes
v1-->v2:
- rebased on 5.2-rc7
- various makefile's cleanups
- mixed READMEs fixes
- fixed test_arm64_signals.sh runner script
- cleaned up assembly code in signal.S
- improved get_current_context() logic
- fixed SAFE_WRITE()
- common support code splitted into more chunks, each one introduced when
needed by some new testcases
- fixed some headers validation routines in testcases.c
- removed some still broken/immature tests:
+ fake_sigreturn_misaligned
+ fake_sigreturn_overflow_reserved
+ mangle_pc_invalid
+ mangle_sp_misaligned
- fixed some other testcases:
+ mangle_pstate_ssbs_regs: better checks of SSBS bit when feature unsupported
+ mangle_pstate_invalid_compat_toggle: name fix
+ mangle_pstate_invalid_mode_el[1-3]: precautionary zeroing PSTATE.MODE
+ fake_sigreturn_bad_magic, fake_sigreturn_bad_size,
fake_sigreturn_bad_size_for_magic0:
- accounting for available space...dropping extra when needed
- keeping alignent
- new testcases on FPSMID context:
+ fake_sigreturn_missing_fpsimd
+ fake_sigreturn_duplicated_fpsimd
*** BLURB HERE ***
Cristian Marussi (11):
kselftest: arm64: add skeleton Makefile
kselftest: arm64: add common utils and one testcase
kselftest: arm64: mangle_pstate_invalid_daif_bits
kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht]
kselftest: arm64: mangle_pstate_ssbs_regs
kselftest: arm64: fake_sigreturn_bad_magic
kselftest: arm64: fake_sigreturn_bad_size_for_magic0
kselftest: arm64: fake_sigreturn_missing_fpsimd
kselftest: arm64: fake_sigreturn_duplicated_fpsimd
kselftest: arm64: fake_sigreturn_bad_size
kselftest: arm64: fake_sigreturn_misaligned_sp
tools/testing/selftests/Makefile | 1 +
tools/testing/selftests/arm64/Makefile | 51 +++
tools/testing/selftests/arm64/README | 20 +
tools/testing/selftests/arm64/signal/Makefile | 50 +++
tools/testing/selftests/arm64/signal/README | 59 +++
.../testing/selftests/arm64/signal/signals.S | 62 +++
.../selftests/arm64/signal/test_signals.c | 29 ++
.../selftests/arm64/signal/test_signals.h | 123 ++++++
.../arm64/signal/test_signals_utils.c | 367 ++++++++++++++++++
.../arm64/signal/test_signals_utils.h | 16 +
.../arm64/signal/testcases/.gitignore | 3 +
.../testcases/fake_sigreturn_bad_magic.c | 54 +++
.../testcases/fake_sigreturn_bad_size.c | 77 ++++
.../fake_sigreturn_bad_size_for_magic0.c | 49 +++
.../fake_sigreturn_duplicated_fpsimd.c | 52 +++
.../testcases/fake_sigreturn_misaligned_sp.c | 37 ++
.../testcases/fake_sigreturn_missing_fpsimd.c | 50 +++
.../mangle_pstate_invalid_compat_toggle.c | 31 ++
.../mangle_pstate_invalid_daif_bits.c | 35 ++
.../mangle_pstate_invalid_mode_el1h.c | 15 +
.../mangle_pstate_invalid_mode_el1t.c | 15 +
.../mangle_pstate_invalid_mode_el2h.c | 15 +
.../mangle_pstate_invalid_mode_el2t.c | 15 +
.../mangle_pstate_invalid_mode_el3h.c | 15 +
.../mangle_pstate_invalid_mode_el3t.c | 15 +
.../mangle_pstate_invalid_mode_template.h | 28 ++
.../testcases/mangle_pstate_ssbs_regs.c | 69 ++++
.../arm64/signal/testcases/testcases.c | 179 +++++++++
.../arm64/signal/testcases/testcases.h | 90 +++++
29 files changed, 1622 insertions(+)
create mode 100644 tools/testing/selftests/arm64/Makefile
create mode 100644 tools/testing/selftests/arm64/README
create mode 100644 tools/testing/selftests/arm64/signal/Makefile
create mode 100644 tools/testing/selftests/arm64/signal/README
create mode 100644 tools/testing/selftests/arm64/signal/signals.S
create mode 100644 tools/testing/selftests/arm64/signal/test_signals.c
create mode 100644 tools/testing/selftests/arm64/signal/test_signals.h
create mode 100644 tools/testing/selftests/arm64/signal/test_signals_utils.c
create mode 100644 tools/testing/selftests/arm64/signal/test_signals_utils.h
create mode 100644 tools/testing/selftests/arm64/signal/testcases/.gitignore
create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_size.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_size_for_magic0.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_duplicated_fpsimd.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned_sp.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_missing_fpsimd.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_compat_toggle.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_daif_bits.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1h.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1t.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2h.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2t.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3h.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3t.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_template.h
create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_ssbs_regs.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/testcases.c
create mode 100644 tools/testing/selftests/arm64/signal/testcases/testcases.h
--
2.17.1
