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dot2k suggests a list of changes to the kernel tree while adding a monitor: edit tracepoints header, Makefile, Kconfig and moving the monitor folder. Those changes can be easily run automatically. Add a flag to dot2k to alter the kernel source. The kernel source directory can be either assumed from the PWD, or from the running kernel, if installed. This feature works best if the kernel tree is a git repository, so that its easier to make sure there are no unintended changes. The main RV files (e.g. Makefile) have now a comment placeholder that can be useful for manual editing (e.g. to know where to add new monitors) and it is used by the script to append the required lines. We also slightly adapt the file handling functions in dot2k: __open_file is now called __read_file and also closes the file before returning the content; __create_file is now a more general __write_file, we no longer return on FileExistsError (not thrown while opening), a new __create_file simply calls __write_file specifying the monitor folder in the path. Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: John Kacur <jkacur@redhat.com> Link: https://lore.kernel.org/20241227144752.362911-8-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
58 lines
1.6 KiB
Plaintext
58 lines
1.6 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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config DA_MON_EVENTS
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bool
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config DA_MON_EVENTS_IMPLICIT
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select DA_MON_EVENTS
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bool
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config DA_MON_EVENTS_ID
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select DA_MON_EVENTS
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bool
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menuconfig RV
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bool "Runtime Verification"
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depends on TRACING
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help
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Enable the kernel runtime verification infrastructure. RV is a
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lightweight (yet rigorous) method that complements classical
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exhaustive verification techniques (such as model checking and
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theorem proving). RV works by analyzing the trace of the system's
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actual execution, comparing it against a formal specification of
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the system behavior.
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For further information, see:
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Documentation/trace/rv/runtime-verification.rst
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source "kernel/trace/rv/monitors/wip/Kconfig"
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source "kernel/trace/rv/monitors/wwnr/Kconfig"
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# Add new monitors here
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config RV_REACTORS
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bool "Runtime verification reactors"
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default y
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depends on RV
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help
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Enables the online runtime verification reactors. A runtime
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monitor can cause a reaction to the detection of an exception
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on the model's execution. By default, the monitors have
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tracing reactions, printing the monitor output via tracepoints,
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but other reactions can be added (on-demand) via this interface.
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config RV_REACT_PRINTK
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bool "Printk reactor"
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depends on RV_REACTORS
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default y
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help
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Enables the printk reactor. The printk reactor emits a printk()
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message if an exception is found.
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config RV_REACT_PANIC
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bool "Panic reactor"
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depends on RV_REACTORS
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default y
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help
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Enables the panic reactor. The panic reactor emits a printk()
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message if an exception is found and panic()s the system.
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