From: Gabriele Monaco <gmonaco@redhat.com>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Cc: Gabriele Monaco <gmonaco@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Nam Cao <namcao@linutronix.de>,
Thomas Weissschuh <thomas.weissschuh@linutronix.de>,
Tomas Glozar <tglozar@redhat.com>, John Kacur <jkacur@redhat.com>,
Wen Yang <wen.yang@linux.dev>
Subject: [PATCH v4 00/17] rv: Add selftests to tools and KUnit tests
Date: Fri, 17 Jul 2026 17:46:21 +0200 [thread overview]
Message-ID: <20260717154638.220789-1-gmonaco@redhat.com> (raw)
This series adds support to the make check target in the rv userspace
tool and the rvgen script, this allows to quickly validate its
functionality. The selftest framework is inspired by the one used in
RTLA.
A few bugs in both tools were also discovered and are fixed as part of
this series.
Additionally it adds unit tests for models. This is achieved by running
the handlers functions directly within KUnit, emulating all modules
paths as if real kernel events fired.
Unit tests emulate a series of events that are expected to trigger
violations and checks that a reaction occurred, stub structs and
functions are used so the kernel is not affected by the test.
Finally it adds a few kselftests for new monitors and improves existing
ones.
Difference since V3 [1]:
* Retry multiple times when getting the pid to avoid races in selftests
* Use pathlib instead of os.path in rvgen
* Rename files to backup instead of writing to backup in rvgen kunit
* Use deadline_thresh in nomiss KUnit test
* Special init/destroy for per-task monitors to avoid touching real
tasks and starting tracepoints in KUnit test
* Use actual reactor instead of KUnit stub to support timer reactions
* Wait for dmesg to flush all messages after reactions in wwnr selftest
* Restore original stall threshold after selftest
Difference since V2 [2]:
* Use general rv_this also in LTL monitors
* Refactor KUnit tests to allow build as module
* Add deadline and stall kselftests
* Fix errexit assumption on kselftests
* Adapt rvgen selftests after rebase
Differences since RFC [3]:
* Fix issue with LTL generator printing literals as uppercase
* Add missing state label in selftest dot spec
* Fail selftest if pid was required but not found (harness error)
* Remove useless static keywords in KUnit tests
* Assert after kunit_kzalloc()
* Use RV_KUNIT_EXPECT_REACTION_HERE to avoid false positives
* Prevent running RV monitors and events together with KUnit
* Rearrange KUnit testing headers
* Expect no reaction at the end of KUnit test cases
* Fix broken nomiss test and allocation
[1] - https://lore.kernel.org/lkml/20260625121440.116317-1-gmonaco@redhat.com
[2] - https://lore.kernel.org/lkml/20260514152055.229162-1-gmonaco@redhat.com
[3] - https://lore.kernel.org/lkml/20260427151134.192971-1-gmonaco@redhat.com
To: linux-trace-kernel@vger.kernel.org
To: linux-kernel@vger.kernel.org
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Nam Cao <namcao@linutronix.de>
Cc: Thomas Weissschuh <thomas.weissschuh@linutronix.de>
Cc: Tomas Glozar <tglozar@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Cc: Wen Yang <wen.yang@linux.dev>
Gabriele Monaco (17):
rv: Use generic rv_this for the rv_monitor variable in LTL
tools/rv: Fix exit status when monitor execution fails
verification/rvgen: Improve rv_dir discovery in RVGenerator
verification/rvgen: Use pathlib instead of os.path
verification/rvgen: Improve consistency in template files
tools/rv: Add selftests
verification/rvgen: Add golden and spec folders for tests
verification/rvgen: Add selftests
verification/rvgen: Add the rvgen kunit subcommand
verification/rvgen: Add selftests for rvgen kunit
rv: Export task monitor slot and react symbols
rv: Add KUnit tests for some DA/HA monitors
rv: Add KUnit stub for current
rv: Add KUnit tests for some LTL monitors
selftests/verification: Fix wrong errexit assumption
selftests/verification: Rearrange the wwnr_printk test
selftests/verification: Add selftests for deadline and stall monitors
include/rv/da_monitor.h | 23 ++
include/rv/ha_monitor.h | 21 ++
include/rv/kunit.h | 72 +++++
include/rv/ltl_monitor.h | 14 +-
kernel/trace/rv/Kconfig | 14 +
kernel/trace/rv/Makefile | 1 +
kernel/trace/rv/monitors/nomiss/nomiss.c | 18 ++
.../trace/rv/monitors/nomiss/nomiss_kunit.c | 38 +++
.../trace/rv/monitors/nomiss/nomiss_kunit.h | 35 +++
kernel/trace/rv/monitors/opid/opid.c | 12 +
kernel/trace/rv/monitors/opid/opid_kunit.c | 33 +++
kernel/trace/rv/monitors/opid/opid_kunit.h | 23 ++
.../trace/rv/monitors/pagefault/pagefault.c | 20 +-
.../rv/monitors/pagefault/pagefault_kunit.c | 34 +++
.../rv/monitors/pagefault/pagefault_kunit.h | 24 ++
kernel/trace/rv/monitors/sco/sco.c | 13 +
kernel/trace/rv/monitors/sco/sco_kunit.c | 29 ++
kernel/trace/rv/monitors/sco/sco_kunit.h | 24 ++
kernel/trace/rv/monitors/sleep/sleep.c | 49 +++-
kernel/trace/rv/monitors/sleep/sleep_kunit.c | 58 ++++
kernel/trace/rv/monitors/sleep/sleep_kunit.h | 30 ++
kernel/trace/rv/monitors/sssw/sssw.c | 14 +
kernel/trace/rv/monitors/sssw/sssw_kunit.c | 33 +++
kernel/trace/rv/monitors/sssw/sssw_kunit.h | 30 ++
kernel/trace/rv/monitors/sts/sts.c | 19 ++
kernel/trace/rv/monitors/sts/sts_kunit.c | 39 +++
kernel/trace/rv/monitors/sts/sts_kunit.h | 33 +++
kernel/trace/rv/rv.c | 50 ++++
kernel/trace/rv/rv_monitors_test.c | 188 +++++++++++++
kernel/trace/rv/rv_reactors.c | 1 +
.../verification/test.d/rv_deadline.tc | 21 ++
.../test.d/rv_monitor_enable_disable.tc | 10 +-
.../verification/test.d/rv_monitor_reactor.tc | 4 +-
.../selftests/verification/test.d/rv_stall.tc | 33 +++
.../verification/test.d/rv_wwnr_printk.tc | 27 +-
tools/verification/rv/Makefile | 5 +-
tools/verification/rv/src/rv.c | 24 +-
tools/verification/rv/tests/rv_list.t | 48 ++++
tools/verification/rv/tests/rv_mon.t | 95 +++++++
tools/verification/rvgen/Makefile | 5 +
tools/verification/rvgen/__main__.py | 15 +-
tools/verification/rvgen/rvgen/generator.py | 51 ++--
tools/verification/rvgen/rvgen/kunit.py | 194 +++++++++++++
tools/verification/rvgen/rvgen/ltl2k.py | 2 +-
.../rvgen/rvgen/templates/container/main.c | 2 +-
.../rvgen/rvgen/templates/dot2k/main.c | 2 +-
.../rvgen/rvgen/templates/kunit.c | 33 +++
.../rvgen/rvgen/templates/ltl2k/main.c | 8 +-
.../rvgen/tests/golden/da_global/Kconfig | 9 +
.../rvgen/tests/golden/da_global/da_global.c | 95 +++++++
.../rvgen/tests/golden/da_global/da_global.h | 47 ++++
.../tests/golden/da_global/da_global_trace.h | 15 +
.../tests/golden/da_perobj_parent/Kconfig | 11 +
.../da_perobj_parent/da_perobj_parent.c | 110 ++++++++
.../da_perobj_parent/da_perobj_parent.h | 64 +++++
.../da_perobj_parent/da_perobj_parent_trace.h | 15 +
.../tests/golden/da_pertask_desc/Kconfig | 9 +
.../golden/da_pertask_desc/da_pertask_desc.c | 105 +++++++
.../golden/da_pertask_desc/da_pertask_desc.h | 64 +++++
.../da_pertask_desc/da_pertask_desc_trace.h | 15 +
.../rvgen/tests/golden/ha_percpu/Kconfig | 9 +
.../rvgen/tests/golden/ha_percpu/ha_percpu.c | 244 ++++++++++++++++
.../rvgen/tests/golden/ha_percpu/ha_percpu.h | 72 +++++
.../tests/golden/ha_percpu/ha_percpu_trace.h | 19 ++
.../rvgen/tests/golden/ltl_pertask/Kconfig | 9 +
.../tests/golden/ltl_pertask/ltl_pertask.c | 107 +++++++
.../tests/golden/ltl_pertask/ltl_pertask.h | 108 ++++++++
.../golden/ltl_pertask/ltl_pertask_trace.h | 14 +
.../rvgen/tests/golden/test_bak_kunit/Kconfig | 9 +
.../golden/test_bak_kunit/test_bak_kunit.c | 107 +++++++
.../golden/test_bak_kunit/test_bak_kunit.h | 108 ++++++++
.../test_bak_kunit/test_bak_kunit_kunit.c | 33 +++
.../test_bak_kunit/test_bak_kunit_kunit.c.bak | 1 +
.../test_bak_kunit/test_bak_kunit_kunit.h | 22 ++
.../test_bak_kunit/test_bak_kunit_trace.h | 14 +
.../rvgen/tests/golden/test_container/Kconfig | 5 +
.../golden/test_container/test_container.c | 35 +++
.../golden/test_container/test_container.h | 3 +
.../rvgen/tests/golden/test_da/Kconfig | 9 +
.../rvgen/tests/golden/test_da/test_da.c | 95 +++++++
.../rvgen/tests/golden/test_da/test_da.h | 47 ++++
.../tests/golden/test_da/test_da_trace.h | 15 +
.../rvgen/tests/golden/test_da_kunit/Kconfig | 9 +
.../golden/test_da_kunit/test_da_kunit.c | 107 +++++++
.../golden/test_da_kunit/test_da_kunit.h | 47 ++++
.../test_da_kunit/test_da_kunit_kunit.c | 33 +++
.../test_da_kunit/test_da_kunit_kunit.h | 23 ++
.../test_da_kunit/test_da_kunit_trace.h | 15 +
.../rvgen/tests/golden/test_ha/Kconfig | 9 +
.../rvgen/tests/golden/test_ha/test_ha.c | 247 +++++++++++++++++
.../rvgen/tests/golden/test_ha/test_ha.h | 72 +++++
.../tests/golden/test_ha/test_ha_trace.h | 19 ++
.../rvgen/tests/golden/test_ha_kunit/Kconfig | 9 +
.../golden/test_ha_kunit/test_ha_kunit.c | 260 ++++++++++++++++++
.../golden/test_ha_kunit/test_ha_kunit.h | 88 ++++++
.../test_ha_kunit/test_ha_kunit_kunit.c | 33 +++
.../test_ha_kunit/test_ha_kunit_kunit.h | 24 ++
.../test_ha_kunit/test_ha_kunit_trace.h | 19 ++
.../rvgen/tests/golden/test_ltl/Kconfig | 11 +
.../rvgen/tests/golden/test_ltl/test_ltl.c | 108 ++++++++
.../rvgen/tests/golden/test_ltl/test_ltl.h | 108 ++++++++
.../tests/golden/test_ltl/test_ltl_trace.h | 14 +
.../rvgen/tests/golden/test_ltl_kunit/Kconfig | 9 +
.../golden/test_ltl_kunit/test_ltl_kunit.c | 107 +++++++
.../golden/test_ltl_kunit/test_ltl_kunit.h | 108 ++++++++
.../test_ltl_kunit/test_ltl_kunit_kunit.c | 33 +++
.../test_ltl_kunit/test_ltl_kunit_kunit.h | 22 ++
.../test_ltl_kunit/test_ltl_kunit_trace.h | 14 +
.../rvgen/tests/rvgen_container.t | 20 ++
tools/verification/rvgen/tests/rvgen_kunit.t | 41 +++
.../verification/rvgen/tests/rvgen_monitor.t | 87 ++++++
.../rvgen/tests/specs/test_da.dot | 16 ++
.../rvgen/tests/specs/test_da2.dot | 19 ++
.../rvgen/tests/specs/test_ha.dot | 27 ++
.../rvgen/tests/specs/test_invalid.dot | 8 +
.../rvgen/tests/specs/test_invalid.ltl | 1 +
.../rvgen/tests/specs/test_invalid_ha.dot | 16 ++
.../rvgen/tests/specs/test_ltl.ltl | 1 +
tools/verification/tests/engine.sh | 175 ++++++++++++
119 files changed, 5093 insertions(+), 81 deletions(-)
create mode 100644 include/rv/kunit.h
create mode 100644 kernel/trace/rv/monitors/nomiss/nomiss_kunit.c
create mode 100644 kernel/trace/rv/monitors/nomiss/nomiss_kunit.h
create mode 100644 kernel/trace/rv/monitors/opid/opid_kunit.c
create mode 100644 kernel/trace/rv/monitors/opid/opid_kunit.h
create mode 100644 kernel/trace/rv/monitors/pagefault/pagefault_kunit.c
create mode 100644 kernel/trace/rv/monitors/pagefault/pagefault_kunit.h
create mode 100644 kernel/trace/rv/monitors/sco/sco_kunit.c
create mode 100644 kernel/trace/rv/monitors/sco/sco_kunit.h
create mode 100644 kernel/trace/rv/monitors/sleep/sleep_kunit.c
create mode 100644 kernel/trace/rv/monitors/sleep/sleep_kunit.h
create mode 100644 kernel/trace/rv/monitors/sssw/sssw_kunit.c
create mode 100644 kernel/trace/rv/monitors/sssw/sssw_kunit.h
create mode 100644 kernel/trace/rv/monitors/sts/sts_kunit.c
create mode 100644 kernel/trace/rv/monitors/sts/sts_kunit.h
create mode 100644 kernel/trace/rv/rv_monitors_test.c
create mode 100644 tools/testing/selftests/verification/test.d/rv_deadline.tc
create mode 100644 tools/testing/selftests/verification/test.d/rv_stall.tc
create mode 100644 tools/verification/rv/tests/rv_list.t
create mode 100644 tools/verification/rv/tests/rv_mon.t
create mode 100644 tools/verification/rvgen/rvgen/kunit.py
create mode 100644 tools/verification/rvgen/rvgen/templates/kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/da_global/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/da_global/da_global.c
create mode 100644 tools/verification/rvgen/tests/golden/da_global/da_global.h
create mode 100644 tools/verification/rvgen/tests/golden/da_global/da_global_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/da_perobj_parent/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/da_perobj_parent/da_perobj_parent.c
create mode 100644 tools/verification/rvgen/tests/golden/da_perobj_parent/da_perobj_parent.h
create mode 100644 tools/verification/rvgen/tests/golden/da_perobj_parent/da_perobj_parent_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/da_pertask_desc/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/da_pertask_desc/da_pertask_desc.c
create mode 100644 tools/verification/rvgen/tests/golden/da_pertask_desc/da_pertask_desc.h
create mode 100644 tools/verification/rvgen/tests/golden/da_pertask_desc/da_pertask_desc_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/ha_percpu/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/ha_percpu/ha_percpu.c
create mode 100644 tools/verification/rvgen/tests/golden/ha_percpu/ha_percpu.h
create mode 100644 tools/verification/rvgen/tests/golden/ha_percpu/ha_percpu_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/ltl_pertask/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/ltl_pertask/ltl_pertask.c
create mode 100644 tools/verification/rvgen/tests/golden/ltl_pertask/ltl_pertask.h
create mode 100644 tools/verification/rvgen/tests/golden/ltl_pertask/ltl_pertask_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/test_bak_kunit/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit.h
create mode 100644 tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.bak
create mode 100644 tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.h
create mode 100644 tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/test_container/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/test_container/test_container.c
create mode 100644 tools/verification/rvgen/tests/golden/test_container/test_container.h
create mode 100644 tools/verification/rvgen/tests/golden/test_da/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/test_da/test_da.c
create mode 100644 tools/verification/rvgen/tests/golden/test_da/test_da.h
create mode 100644 tools/verification/rvgen/tests/golden/test_da/test_da_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/test_da_kunit/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/test_da_kunit/test_da_kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/test_da_kunit/test_da_kunit.h
create mode 100644 tools/verification/rvgen/tests/golden/test_da_kunit/test_da_kunit_kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/test_da_kunit/test_da_kunit_kunit.h
create mode 100644 tools/verification/rvgen/tests/golden/test_da_kunit/test_da_kunit_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ha/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/test_ha/test_ha.c
create mode 100644 tools/verification/rvgen/tests/golden/test_ha/test_ha.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ha/test_ha_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ha_kunit/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/test_ha_kunit/test_ha_kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/test_ha_kunit/test_ha_kunit.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ha_kunit/test_ha_kunit_kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/test_ha_kunit/test_ha_kunit_kunit.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ha_kunit/test_ha_kunit_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl/test_ltl.c
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl/test_ltl.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl/test_ltl_trace.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl_kunit/Kconfig
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl_kunit/test_ltl_kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl_kunit/test_ltl_kunit.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl_kunit/test_ltl_kunit_kunit.c
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl_kunit/test_ltl_kunit_kunit.h
create mode 100644 tools/verification/rvgen/tests/golden/test_ltl_kunit/test_ltl_kunit_trace.h
create mode 100644 tools/verification/rvgen/tests/rvgen_container.t
create mode 100644 tools/verification/rvgen/tests/rvgen_kunit.t
create mode 100644 tools/verification/rvgen/tests/rvgen_monitor.t
create mode 100644 tools/verification/rvgen/tests/specs/test_da.dot
create mode 100644 tools/verification/rvgen/tests/specs/test_da2.dot
create mode 100644 tools/verification/rvgen/tests/specs/test_ha.dot
create mode 100644 tools/verification/rvgen/tests/specs/test_invalid.dot
create mode 100644 tools/verification/rvgen/tests/specs/test_invalid.ltl
create mode 100644 tools/verification/rvgen/tests/specs/test_invalid_ha.dot
create mode 100644 tools/verification/rvgen/tests/specs/test_ltl.ltl
create mode 100644 tools/verification/tests/engine.sh
base-commit: a13c140cc289c0b7b3770bce5b3ad42ab35074aa
--
2.55.0
next reply other threads:[~2026-07-17 15:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-17 15:46 Gabriele Monaco [this message]
2026-07-17 15:46 ` [PATCH v4 01/17] rv: Use generic rv_this for the rv_monitor variable in LTL Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 02/17] tools/rv: Fix exit status when monitor execution fails Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 03/17] verification/rvgen: Improve rv_dir discovery in RVGenerator Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 04/17] verification/rvgen: Use pathlib instead of os.path Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 05/17] verification/rvgen: Improve consistency in template files Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 06/17] tools/rv: Add selftests Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 07/17] verification/rvgen: Add golden and spec folders for tests Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 08/17] verification/rvgen: Add selftests Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 09/17] verification/rvgen: Add the rvgen kunit subcommand Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 10/17] verification/rvgen: Add selftests for rvgen kunit Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 11/17] rv: Export task monitor slot and react symbols Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 12/17] rv: Add KUnit tests for some DA/HA monitors Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 13/17] rv: Add KUnit stub for current Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 14/17] rv: Add KUnit tests for some LTL monitors Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 15/17] selftests/verification: Fix wrong errexit assumption Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 16/17] selftests/verification: Rearrange the wwnr_printk test Gabriele Monaco
2026-07-17 15:46 ` [PATCH v4 17/17] selftests/verification: Add selftests for deadline and stall monitors Gabriele Monaco
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