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de6f45c2dd
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>
45 lines
1.7 KiB
Python
45 lines
1.7 KiB
Python
#!/usr/bin/env python3
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# SPDX-License-Identifier: GPL-2.0-only
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#
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# Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
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#
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# dot2k: transform dot files into a monitor for the Linux kernel.
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#
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# For further information, see:
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# Documentation/trace/rv/da_monitor_synthesis.rst
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if __name__ == '__main__':
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from dot2.dot2k import dot2k
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import argparse
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import ntpath
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import os
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import platform
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import sys
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parser = argparse.ArgumentParser(description='transform .dot file into kernel rv monitor')
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parser.add_argument('-d', "--dot", dest="dot_file", required=True)
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parser.add_argument('-t', "--monitor_type", dest="monitor_type", required=True)
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parser.add_argument('-n', "--model_name", dest="model_name", required=False)
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parser.add_argument("-D", "--description", dest="description", required=False)
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parser.add_argument("-a", "--auto_patch", dest="auto_patch",
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action="store_true", required=False,
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help="Patch the kernel in place")
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params = parser.parse_args()
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print("Opening and parsing the dot file %s" % params.dot_file)
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try:
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monitor=dot2k(params.dot_file, params.monitor_type, vars(params))
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except Exception as e:
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print('Error: '+ str(e))
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print("Sorry : :-(")
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sys.exit(1)
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print("Writing the monitor into the directory %s" % monitor.name)
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monitor.print_files()
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print("Almost done, checklist")
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print(" - Edit the %s/%s.c to add the instrumentation" % (monitor.name, monitor.name))
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print(monitor.fill_tracepoint_tooltip())
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print(monitor.fill_makefile_tooltip())
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print(monitor.fill_kconfig_tooltip())
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print(monitor.fill_monitor_tooltip())
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