From: Marcos Paulo de Souza <mpdesouza@suse.com>
To: live-patching@vger.kernel.org, linux-kselftest@vger.kernel.org
Cc: shuah@kernel.org, jpoimboe@redhat.com, mbenes@suse.cz,
pmladek@suse.com, Marcos Paulo de Souza <mpdesouza@suse.com>
Subject: [PATCH 0/2] livepatch: Move tests from lib/livepatch to selftests/livepatch
Date: Fri, 3 Jun 2022 11:32:40 -0300 [thread overview]
Message-ID: <20220603143242.870-1-mpdesouza@suse.com> (raw)
Hi there,
The first patch moves the current livepatch tests to selftests, allowing it
be better suited to contain more complex tests, like using userspace C code
to use the livepatched kernel code. As a bonus it allows to use
"gen_tar" to export the livepatch selftests, rebuild the modules by
running make in selftests/livepatch directory and simplifies the process
of creating and debugging new selftests.
It keeps the ability to execute the tests by running the shell scripts,
like "test-livepatch.sh", but beware that the kernel modules
might not be up-to-date.
The second patch includes a new test to exercise the functionality to livepatch
a heavy hammered function. The test uses getpid in this case.
I tested the changes by running the tests within the kernel source tree and running
from the gen_tar extracted directory.
Marcos Paulo de Souza (2):
livepatch: Move tests from lib/livepatch to selftests/livepatch
selftests: livepatch: Test livepatching a heavily called syscall
arch/s390/configs/debug_defconfig | 1 -
arch/s390/configs/defconfig | 1 -
lib/Kconfig.debug | 22 -------
lib/Makefile | 2 -
lib/livepatch/Makefile | 14 -----
tools/testing/selftests/livepatch/Makefile | 35 ++++++++++-
tools/testing/selftests/livepatch/README | 5 +-
tools/testing/selftests/livepatch/config | 1 -
.../testing/selftests/livepatch/functions.sh | 34 ++++-------
.../selftests/livepatch/test-callbacks.sh | 50 ++++++++--------
.../selftests/livepatch/test-ftrace.sh | 6 +-
.../selftests/livepatch/test-livepatch.sh | 10 ++--
.../selftests/livepatch/test-shadow-vars.sh | 2 +-
.../testing/selftests/livepatch/test-state.sh | 18 +++---
.../selftests/livepatch/test-syscall.sh | 46 ++++++++++++++
.../test_binaries/test_klp-call_getpid.c | 48 +++++++++++++++
.../selftests/livepatch/test_modules/Makefile | 25 ++++++++
.../test_modules}/test_klp_atomic_replace.c | 0
.../test_modules}/test_klp_callbacks_busy.c | 0
.../test_modules}/test_klp_callbacks_demo.c | 0
.../test_modules}/test_klp_callbacks_demo2.c | 0
.../test_modules}/test_klp_callbacks_mod.c | 0
.../test_modules}/test_klp_livepatch.c | 0
.../test_modules}/test_klp_shadow_vars.c | 0
.../livepatch/test_modules}/test_klp_state.c | 0
.../livepatch/test_modules}/test_klp_state2.c | 0
.../livepatch/test_modules}/test_klp_state3.c | 0
.../livepatch/test_modules/test_klp_syscall.c | 60 +++++++++++++++++++
28 files changed, 269 insertions(+), 111 deletions(-)
delete mode 100644 lib/livepatch/Makefile
create mode 100755 tools/testing/selftests/livepatch/test-syscall.sh
create mode 100644 tools/testing/selftests/livepatch/test_binaries/test_klp-call_getpid.c
create mode 100644 tools/testing/selftests/livepatch/test_modules/Makefile
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_atomic_replace.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_callbacks_busy.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_callbacks_demo.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_callbacks_demo2.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_callbacks_mod.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_livepatch.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_shadow_vars.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_state.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_state2.c (100%)
rename {lib/livepatch => tools/testing/selftests/livepatch/test_modules}/test_klp_state3.c (100%)
create mode 100644 tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
--
2.35.3
next reply other threads:[~2022-06-03 14:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-03 14:32 Marcos Paulo de Souza [this message]
2022-06-03 14:32 ` [PATCH 1/2] livepatch: Move tests from lib/livepatch to selftests/livepatch Marcos Paulo de Souza
2022-06-09 20:00 ` Shuah Khan
2022-06-09 20:13 ` Shuah Khan
2022-06-03 14:32 ` [PATCH 2/2] selftests: livepatch: Test livepatching a heavily called syscall Marcos Paulo de Souza
2022-06-17 21:17 ` Joe Lawrence
2022-06-09 20:16 ` [PATCH 0/2] livepatch: Move tests from lib/livepatch to selftests/livepatch Shuah Khan
2022-06-10 13:06 ` Joe Lawrence
2022-06-10 14:48 ` Petr Mladek
2022-06-14 1:02 ` Shuah Khan
2022-06-10 13:50 ` Marcos Paulo de Souza
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