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The livepatching self-tests tweak the dynamic debug config to verify
the kernel log during the tests. Enhance set_dynamic_debug() so that
the config changes are restored when the script exits.
Note this functionality needs to keep in sync with:
- dynamic_debug input/output formatting
- functions affected by set_dynamic_debug()
For example, push_dynamic_debug() transforms:
kernel/livepatch/transition.c:530 [livepatch]klp_init_transition =_ "'%s': initializing %s transition\012"
to the following:
file kernel/livepatch/transition.c line 530 =_
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Add a skip() message function that stops the test, logs an explanation,
and sets the "skip" return code (4).
Before loading a livepatch self-test kernel module, first verify that
we've built and installed it by running a 'modprobe --dry-run'. This
should catch a few environment issues, including !CONFIG_LIVEPATCH and
!CONFIG_TEST_LIVEPATCH. In these cases, exit gracefully with the new
skip() function.
Reported-by: Jiri Benc <jbenc@redhat.com>
Suggested-by: Shuah Khan <shuah@kernel.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Add functions.sh to TEST_PROGS_EXTENDED so that it is installed along
with the rest of the selftests and they can be run.
Originally-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
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Adrian reports that 'make -C tools clean' results in removal of the
livepatch selftest shell scripts.
As per the selftest lib.mk file, TEST_PROGS are for test shell scripts,
not TEST_GEN_PROGS. Adjust the livepatch selftest Makefile accordingly.
Reported-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
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The livepatch selftest functions.sh library uses "$*" and an
intermediate variable to extract and then pass arguments from function
to function call. The effect of this combination is that the argument
list is flattened into a single argument. Sometimes this is benign, but
in cases like __load_mod(), the modprobe invocation will interpret all
the module parameters as a single parameter.
Drop the intermediate variable and use the "$@" special parameter as
described in the bash manual.
Link: https://www.gnu.org/software/bash/manual/bash.html#Special-Parameters
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Petr Mladek <pmladek@suse.com>
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Add a few livepatch modules and simple target modules that the included
regression suite can run tests against:
- basic livepatching (multiple patches, atomic replace)
- pre/post (un)patch callbacks
- shadow variable API
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Tested-by: Miroslav Benes <mbenes@suse.cz>
Tested-by: Alice Ferrazzi <alice.ferrazzi@gmail.com>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Joe Lawrence
Miroslav Benes