[PATCH 0/2] livepatch: Move tests from lib/livepatch to selftests/livepatch

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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




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