tools/rv: Add dot2c

dot2c is a tool that transforms an automata in the graphiviz .dot file
into an C representation of the automata.

usage: dot2c [-h] dot_file

dot2c: converts a .dot file into a C structure

positional arguments:
  dot_file    The dot file to be converted

optional arguments:
  -h, --help  show this help message and exit

Link: https://lkml.kernel.org/r/b26204ba9509c80bcda31b76cdea31ddb188cd24.1659052063.git.bristot@kernel.org

Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marco Elver <elver@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Gabriele Paoloni <gpaoloni@redhat.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Clark Williams <williams@redhat.com>
Cc: Tao Zhou <tao.zhou@linux.dev>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-trace-devel@vger.kernel.org
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/tools/verification/dot2/dot2c b/tools/verification/dot2/dot2c
new file mode 100644
index 000000000000..8a8cd84bdfcf
--- /dev/null
+++ b/tools/verification/dot2/dot2c
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
+#
+# dot2c: parse an automata in dot file digraph format into a C
+#
+# This program was written in the development of this paper:
+#  de Oliveira, D. B. and Cucinotta, T. and de Oliveira, R. S.
+#  "Efficient Formal Verification for the Linux Kernel." International
+#  Conference on Software Engineering and Formal Methods. Springer, Cham, 2019.
+
+if __name__ == '__main__':
+    from dot2 import dot2c
+    import argparse
+    import sys
+
+    parser = argparse.ArgumentParser(description='dot2c: converts a .dot file into a C structure')
+    parser.add_argument('dot_file',  help='The dot file to be converted')
+
+    args = parser.parse_args()
+    d = dot2c.Dot2c(args.dot_file)
+    d.print_model_classic()