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Message-Id: <fc5d9daf1c8ffb623d36734c7ff8bf2225cf243a.1644830251.git.bristot@kernel.org>
Date: Mon, 14 Feb 2022 11:44:58 +0100
From: Daniel Bristot de Oliveira <bristot@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Daniel Bristot de Oliveira <bristot@...nel.org>,
Jonathan Corbet <corbet@....net>,
Ingo Molnar <mingo@...hat.com>,
Thomas Gleixner <tglx@...utronix.de>,
Peter Zijlstra <peterz@...radead.org>,
Will Deacon <will@...nel.org>,
Catalin Marinas <catalin.marinas@....com>,
Marco Elver <elver@...gle.com>,
Dmitry Vyukov <dvyukov@...gle.com>,
"Paul E. McKenney" <paulmck@...nel.org>,
Shuah Khan <skhan@...uxfoundation.org>,
Gabriele Paoloni <gpaoloni@...hat.com>,
Juri Lelli <juri.lelli@...hat.com>,
Clark Williams <williams@...hat.com>,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-trace-devel@...r.kernel.org
Subject: [RFC V2 07/21] tools/rv: Add dot2k
transform .dot file into kernel rv monitor
usage: dot2k [-h] -d DOT_FILE -t MONITOR_TYPE [-n MODEL_NAME] [-D DESCRIPTION]
optional arguments:
-h, --help show this help message and exit
-d DOT_FILE, --dot DOT_FILE
-t MONITOR_TYPE, --monitor_type MONITOR_TYPE
-n MODEL_NAME, --model_name MODEL_NAME
-D DESCRIPTION, --description DESCRIPTION
Cc: Jonathan Corbet <corbet@....net>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Will Deacon <will@...nel.org>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Marco Elver <elver@...gle.com>
Cc: Dmitry Vyukov <dvyukov@...gle.com>
Cc: "Paul E. McKenney" <paulmck@...nel.org>
Cc: Shuah Khan <skhan@...uxfoundation.org>
Cc: Gabriele Paoloni <gpaoloni@...hat.com>
Cc: Juri Lelli <juri.lelli@...hat.com>
Cc: Clark Williams <williams@...hat.com>
Cc: linux-doc@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-trace-devel@...r.kernel.org
Signed-off-by: Daniel Bristot de Oliveira <bristot@...nel.org>
---
tools/tracing/rv/dot2/Makefile | 5 +
tools/tracing/rv/dot2/dot2k | 46 +++++
tools/tracing/rv/dot2/dot2k.py | 184 ++++++++++++++++++
.../rv/dot2/dot2k_templates/main_global.c | 96 +++++++++
.../rv/dot2/dot2k_templates/main_global.h | 64 ++++++
.../rv/dot2/dot2k_templates/main_per_cpu.c | 96 +++++++++
.../rv/dot2/dot2k_templates/main_per_cpu.h | 64 ++++++
.../rv/dot2/dot2k_templates/main_per_task.c | 96 +++++++++
.../rv/dot2/dot2k_templates/main_per_task.h | 70 +++++++
9 files changed, 721 insertions(+)
create mode 100644 tools/tracing/rv/dot2/dot2k
create mode 100644 tools/tracing/rv/dot2/dot2k.py
create mode 100644 tools/tracing/rv/dot2/dot2k_templates/main_global.c
create mode 100644 tools/tracing/rv/dot2/dot2k_templates/main_global.h
create mode 100644 tools/tracing/rv/dot2/dot2k_templates/main_per_cpu.c
create mode 100644 tools/tracing/rv/dot2/dot2k_templates/main_per_cpu.h
create mode 100644 tools/tracing/rv/dot2/dot2k_templates/main_per_task.c
create mode 100644 tools/tracing/rv/dot2/dot2k_templates/main_per_task.h
diff --git a/tools/tracing/rv/dot2/Makefile b/tools/tracing/rv/dot2/Makefile
index 9dd59ec8a733..fcec4bf2bb11 100644
--- a/tools/tracing/rv/dot2/Makefile
+++ b/tools/tracing/rv/dot2/Makefile
@@ -19,3 +19,8 @@ install:
$(INSTALL) automata.py -D -m 644 $(DESTDIR)$(PYLIB)/dot2/automata.py
$(INSTALL) dot2c.py -D -m 644 $(DESTDIR)$(PYLIB)/dot2/dot2c.py
$(INSTALL) dot2c -D -m 755 $(DESTDIR)$(bindir)/
+ $(INSTALL) dot2k.py -D -m 644 $(DESTDIR)$(PYLIB)/dot2/dot2k.py
+ $(INSTALL) dot2k -D -m 755 $(DESTDIR)$(bindir)/
+
+ mkdir -p ${miscdir}/
+ cp -rp dot2k_templates $(DESTDIR)$(miscdir)/
diff --git a/tools/tracing/rv/dot2/dot2k b/tools/tracing/rv/dot2/dot2k
new file mode 100644
index 000000000000..84c069164949
--- /dev/null
+++ b/tools/tracing/rv/dot2/dot2k
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# dot2k: transform dot files into a monitor for the Linux kernel.
+#
+# For more information, see:
+# https://bristot.me/efficient-formal-verification-for-the-linux-kernel/
+#
+# Copyright 2018-2020 Red Hat, Inc.
+#
+# Author:
+# Daniel Bristot de Oliveira <bristot@...nel.org>
+
+if __name__ == '__main__':
+ from dot2.dot2k import dot2k
+ import argparse
+ import ntpath
+ import os
+ import platform
+ import sys
+ import sys
+ import argparse
+
+ parser = argparse.ArgumentParser(description='transform .dot file into kernel rv monitor')
+ parser.add_argument('-d', "--dot", dest="dot_file", required=True)
+ parser.add_argument('-t', "--monitor_type", dest="monitor_type", required=True)
+ parser.add_argument('-n', "--model_name", dest="model_name", required=False)
+ parser.add_argument("-D", "--description", dest="description", required=False)
+ params = parser.parse_args()
+
+ print("Opening and parsing the dot file %s" % params.dot_file)
+ try:
+ monitor=dot2k(params.dot_file, params.monitor_type)
+ except Exception as e:
+ print('Error: '+ str(e))
+ print("Sorry : :-(")
+ sys.exit(1)
+
+ # easier than using argparse action.
+ if params.model_name != None:
+ print(params.model_name)
+
+ print("Writing the monitor into the directory %s" % monitor.name)
+ monitor.print_files()
+ print("Done, now edit the %s/%s.c to add the instrumentation" % (monitor.name, monitor.name))
+ print("Add a Makefile to compile it as a module, or follow the WWNR example in kernel source")
diff --git a/tools/tracing/rv/dot2/dot2k.py b/tools/tracing/rv/dot2/dot2k.py
new file mode 100644
index 000000000000..ad682b1283f0
--- /dev/null
+++ b/tools/tracing/rv/dot2/dot2k.py
@@ -0,0 +1,184 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# dot2k: transform dot files into a monitor for the Linux kernel.
+#
+# For more information, see:
+# https://bristot.me/efficient-formal-verification-for-the-linux-kernel/
+#
+# Copyright 2018-2020 Red Hat, Inc.
+#
+# Author:
+# Daniel Bristot de Oliveira <bristot@...nel.org>
+
+from dot2.dot2c import Dot2c
+import platform
+import os
+
+class dot2k(Dot2c):
+ monitor_types={ "global" : 1, "per_cpu" : 2, "per_task" : 3 }
+ monitor_templates_dir="dot2k/rv_templates/"
+ monitor_type="per_cpu"
+
+ def __init__(self, file_path, MonitorType):
+ super().__init__(file_path)
+
+ self.monitor_type=self.monitor_types.get(MonitorType)
+ if self.monitor_type == None:
+ raise Exception("Unknown monitor type: %s" % MonitorType)
+
+ self.monitor_type=MonitorType
+ self.__fill_rv_templates_dir()
+ self.main_h = self.__open_file(self.monitor_templates_dir + "main_" + MonitorType + ".h")
+ self.main_c = self.__open_file(self.monitor_templates_dir + "main_" + MonitorType + ".c")
+
+ def __fill_rv_templates_dir(self):
+
+ if os.path.exists(self.monitor_templates_dir) == True:
+ return
+
+ if platform.system() != "Linux":
+ raise Exception("I can only run on Linux.")
+
+ kernel_path="/lib/modules/%s/build/tools/rv/%s" % (platform.release(), self.monitor_templates_dir)
+
+ if os.path.exists(kernel_path) == True:
+ self.monitor_templates_dir=kernel_path
+ return
+
+ if os.path.exists("/usr/share/dot2/dot2k_templates/") == True:
+ self.monitor_templates_dir="/usr/share/dot2/dot2k_templates/"
+ return
+
+ raise Exception("Could not find the template directory, do you have the kernel source installed?")
+
+
+ def __open_file(self, path):
+ try:
+ fd = open(path)
+ except OSError:
+ raise Exception("Cannot open the file: %s" % path)
+
+ content = fd.read()
+
+ return content
+
+ def __buff_to_string(self, buff):
+ string=""
+
+ for line in buff:
+ string=string + line + "\n"
+
+ # cut off the last \n
+ return string[:-1]
+
+ def fill_monitor_h(self):
+ monitor_h = self.monitor_h
+
+ min_type=self.get_minimun_type()
+
+ monitor_h = monitor_h.replace("MIN_TYPE", min_type)
+
+ return monitor_h
+
+ def fill_tracepoint_handlers_skel(self):
+ buff=[]
+ for event in self.events:
+ buff.append("static void handle_%s(void *data, /* XXX: fill header */)" % event)
+ buff.append("{")
+ if self.monitor_type == "per_task":
+ buff.append("\tpid_t pid = /* XXX how do I get the pid? */;");
+ buff.append("\tda_handle_event_%s(pid, %s);" % (self.name, event));
+ else:
+ buff.append("\tda_handle_event_%s(%s);" % (self.name, event));
+ buff.append("}")
+ buff.append("")
+ return self.__buff_to_string(buff)
+
+ def fill_tracepoint_hook_helper(self):
+ buff=[]
+ for event in self.events:
+ buff.append("\t{")
+ buff.append("\t\t.probe = handle_%s," % event)
+ buff.append("\t\t.name = /* XXX: tracepoint name here */,")
+ buff.append("\t\t.registered = 0")
+ buff.append("\t},")
+ return self.__buff_to_string(buff)
+
+ def fill_main_c(self):
+ main_c = self.main_c
+ min_type=self.get_minimun_type()
+ nr_events=self.events.__len__()
+ tracepoint_handlers=self.fill_tracepoint_handlers_skel()
+ tracepoint_hook_helpers=self.fill_tracepoint_hook_helper()
+
+ main_c = main_c.replace("MIN_TYPE", min_type)
+ main_c = main_c.replace("MODEL_NAME", self.name)
+ main_c = main_c.replace("NR_EVENTS", str(nr_events))
+ main_c = main_c.replace("TRACEPOINT_HANDLERS_SKEL", tracepoint_handlers)
+ main_c = main_c.replace("TRACEPOINT_HOOK_HELPERS", tracepoint_hook_helpers)
+
+ return main_c
+
+ def fill_main_h(self):
+ main_h = self.main_h
+ main_h = main_h.replace("MIN_TYPE", self.get_minimun_type())
+ main_h = main_h.replace("MODEL_NAME_BIG", self.name.upper())
+ main_h = main_h.replace("MODEL_NAME", self.name)
+
+ return main_h
+
+ def fill_model_h(self):
+ #
+ # Adjust the definition names
+ #
+ self.enum_states_def="states_%s" % self.name
+ self.enum_events_def="events_%s" % self.name
+ self.struct_automaton_def="automaton_%s" % self.name
+ self.var_automaton_def="automaton_%s" % self.name
+
+ buff=self.format_model()
+
+ return self.__buff_to_string(buff)
+
+ def __create_directory(self):
+ try:
+ os.mkdir(self.name)
+ except FileExistsError:
+ return
+ except:
+ print("Fail creating the output dir: %s" % self.name)
+
+ def __create_file(self, file_name, content):
+ path="%s/%s" % (self.name, file_name)
+ try:
+ file = open(path, 'w')
+ except FileExistsError:
+ return
+ except:
+ print("Fail creating file: %s" % path)
+
+ file.write(content)
+
+ file.close()
+
+ def __get_main_name(self):
+ path="%s/%s" % (self.name, "main.c")
+ if os.path.exists(path) == False:
+ return "main.c"
+ return "__main.c"
+
+ def print_files(self):
+ main_h=self.fill_main_h()
+ main_c=self.fill_main_c()
+ model_h=self.fill_model_h()
+
+ self.__create_directory()
+
+ path="%s.h" % self.name
+ self.__create_file(path, main_h)
+
+ path="%s.c" % self.name
+ self.__create_file(path, main_c)
+
+ self.__create_file("model.h", model_h)
diff --git a/tools/tracing/rv/dot2/dot2k_templates/main_global.c b/tools/tracing/rv/dot2/dot2k_templates/main_global.c
new file mode 100644
index 000000000000..4dc0785ab190
--- /dev/null
+++ b/tools/tracing/rv/dot2/dot2k_templates/main_global.c
@@ -0,0 +1,96 @@
+#include <linux/ftrace.h>
+#include <linux/tracepoint.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/rv.h>
+#include <rv/da_monitor.h>
+
+#define MODULE_NAME "MODEL_NAME"
+
+/*
+ * This is the self-generated part of the monitor. Generally, there is no need
+ * to touch this section.
+ */
+#include "model.h"
+
+/*
+ * Declare the deterministic automata monitor.
+ *
+ * The rv monitor reference is needed for the monitor declaration.
+ */
+struct rv_monitor rv_MODEL_NAME;
+DECLARE_DA_MON_GLOBAL(MODEL_NAME, MIN_TYPE);
+
+#define CREATE_TRACE_POINTS
+#include "MODEL_NAME.h"
+
+/*
+ * This is the instrumentation part of the monitor.
+ *
+ * This is the section where manual work is required. Here the kernel events
+ * are translated into model's event.
+ *
+ */
+
+TRACEPOINT_HANDLERS_SKEL
+#define NR_TP NR_EVENTS
+static struct tracepoint_hook_helper tracepoints_to_hook[NR_TP] = {
+TRACEPOINT_HOOK_HELPERS
+};
+
+static int start_MODEL_NAME(void)
+{
+ int retval;
+
+ da_monitor_init_MODEL_NAME();
+
+ retval = thh_hook_probes(tracepoints_to_hook, NR_TP);
+ if (retval)
+ goto out_err;
+
+ return 0;
+
+out_err:
+ return -EINVAL;
+}
+
+static void stop_MODEL_NAME(void)
+{
+ rv_MODEL_NAME.enabled = 0;
+ thh_unhook_probes(tracepoints_to_hook, NR_TP);
+ return;
+}
+
+/*
+ * This is the monitor register section.
+ */
+struct rv_monitor rv_MODEL_NAME = {
+ .name = "MODEL_NAME",
+ .description = "auto-generated MODEL_NAME",
+ .start = start_MODEL_NAME,
+ .stop = stop_MODEL_NAME,
+ .reset = da_monitor_reset_all_MODEL_NAME,
+ .enabled = 0,
+};
+
+int register_MODEL_NAME(void)
+{
+ rv_register_monitor(&rv_MODEL_NAME);
+ return 0;
+}
+
+void unregister_MODEL_NAME(void)
+{
+ if (rv_MODEL_NAME.enabled)
+ stop_MODEL_NAME();
+
+ rv_unregister_monitor(&rv_MODEL_NAME);
+}
+
+module_init(register_MODEL_NAME);
+module_exit(unregister_MODEL_NAME);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("dot2k: auto-generated");
+MODULE_DESCRIPTION("MODEL_NAME");
diff --git a/tools/tracing/rv/dot2/dot2k_templates/main_global.h b/tools/tracing/rv/dot2/dot2k_templates/main_global.h
new file mode 100644
index 000000000000..d55cb8b83463
--- /dev/null
+++ b/tools/tracing/rv/dot2/dot2k_templates/main_global.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM rv
+
+#if !defined(_MODEL_NAME_BIG_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _MODEL_NAME_BIG_TRACE_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(event_MODEL_NAME,
+
+ TP_PROTO(char state, char event, char next_state, bool safe),
+
+ TP_ARGS(state, event, next_state, safe),
+
+ TP_STRUCT__entry(
+ __field( char, state )
+ __field( char, event )
+ __field( char, next_state )
+ __field( bool, safe )
+ ),
+
+ TP_fast_assign(
+ __entry->state = state;
+ __entry->event = event;
+ __entry->next_state = next_state;
+ __entry->safe = safe;
+ ),
+
+ TP_printk("%s x %s -> %s %s",
+ model_get_state_name_MODEL_NAME(__entry->state),
+ model_get_event_name_MODEL_NAME(__entry->event),
+ model_get_state_name_MODEL_NAME(__entry->next_state),
+ __entry->safe ? "(safe)" : "")
+);
+
+TRACE_EVENT(error_MODEL_NAME,
+
+ TP_PROTO(char state, char event),
+
+ TP_ARGS(state, event),
+
+ TP_STRUCT__entry(
+ __field( char, state )
+ __field( char, event )
+ ),
+
+ TP_fast_assign(
+ __entry->state = state;
+ __entry->event = event;
+ ),
+
+ TP_printk("event %s not expected in the state %s",
+ model_get_event_name_MODEL_NAME(__entry->event),
+ model_get_state_name_MODEL_NAME(__entry->state))
+);
+
+#endif /* _MODEL_NAME_BIG_H */
+
+/* This part ust be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE MODEL_NAME
+#include <trace/define_trace.h>
diff --git a/tools/tracing/rv/dot2/dot2k_templates/main_per_cpu.c b/tools/tracing/rv/dot2/dot2k_templates/main_per_cpu.c
new file mode 100644
index 000000000000..e1eb7a89ada2
--- /dev/null
+++ b/tools/tracing/rv/dot2/dot2k_templates/main_per_cpu.c
@@ -0,0 +1,96 @@
+#include <linux/ftrace.h>
+#include <linux/tracepoint.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/rv.h>
+#include <rv/da_monitor.h>
+
+#define MODULE_NAME "MODEL_NAME"
+
+/*
+ * This is the self-generated part of the monitor. Generally, there is no need
+ * to touch this section.
+ */
+#include "model.h"
+
+/*
+ * Declare the deterministic automata monitor.
+ *
+ * The rv monitor reference is needed for the monitor declaration.
+ */
+struct rv_monitor rv_MODEL_NAME;
+DECLARE_DA_MON_PER_CPU(MODEL_NAME, MIN_TYPE);
+
+#define CREATE_TRACE_POINTS
+#include "MODEL_NAME.h"
+
+/*
+ * This is the instrumentation part of the monitor.
+ *
+ * This is the section where manual work is required. Here the kernel events
+ * are translated into model's event.
+ *
+ */
+
+TRACEPOINT_HANDLERS_SKEL
+#define NR_TP NR_EVENTS
+static struct tracepoint_hook_helper tracepoints_to_hook[NR_TP] = {
+TRACEPOINT_HOOK_HELPERS
+};
+
+static int start_MODEL_NAME(void)
+{
+ int retval;
+
+ da_monitor_init_MODEL_NAME();
+
+ retval = thh_hook_probes(tracepoints_to_hook, NR_TP);
+ if (retval)
+ goto out_err;
+
+ return 0;
+
+out_err:
+ return -EINVAL;
+}
+
+static void stop_MODEL_NAME(void)
+{
+ rv_MODEL_NAME.enabled = 0;
+ thh_unhook_probes(tracepoints_to_hook, NR_TP);
+ return;
+}
+
+/*
+ * This is the monitor register section.
+ */
+struct rv_monitor rv_MODEL_NAME = {
+ .name = "MODEL_NAME",
+ .description = "auto-generated MODEL_NAME",
+ .start = start_MODEL_NAME,
+ .stop = stop_MODEL_NAME,
+ .reset = da_monitor_reset_all_MODEL_NAME,
+ .enabled = 0,
+};
+
+int register_MODEL_NAME(void)
+{
+ rv_register_monitor(&rv_MODEL_NAME);
+ return 0;
+}
+
+void unregister_MODEL_NAME(void)
+{
+ if (rv_MODEL_NAME.enabled)
+ stop_MODEL_NAME();
+
+ rv_unregister_monitor(&rv_MODEL_NAME);
+}
+
+module_init(register_MODEL_NAME);
+module_exit(unregister_MODEL_NAME);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("dot2k: auto-generated");
+MODULE_DESCRIPTION("MODEL_NAME");
diff --git a/tools/tracing/rv/dot2/dot2k_templates/main_per_cpu.h b/tools/tracing/rv/dot2/dot2k_templates/main_per_cpu.h
new file mode 100644
index 000000000000..d55cb8b83463
--- /dev/null
+++ b/tools/tracing/rv/dot2/dot2k_templates/main_per_cpu.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM rv
+
+#if !defined(_MODEL_NAME_BIG_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _MODEL_NAME_BIG_TRACE_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(event_MODEL_NAME,
+
+ TP_PROTO(char state, char event, char next_state, bool safe),
+
+ TP_ARGS(state, event, next_state, safe),
+
+ TP_STRUCT__entry(
+ __field( char, state )
+ __field( char, event )
+ __field( char, next_state )
+ __field( bool, safe )
+ ),
+
+ TP_fast_assign(
+ __entry->state = state;
+ __entry->event = event;
+ __entry->next_state = next_state;
+ __entry->safe = safe;
+ ),
+
+ TP_printk("%s x %s -> %s %s",
+ model_get_state_name_MODEL_NAME(__entry->state),
+ model_get_event_name_MODEL_NAME(__entry->event),
+ model_get_state_name_MODEL_NAME(__entry->next_state),
+ __entry->safe ? "(safe)" : "")
+);
+
+TRACE_EVENT(error_MODEL_NAME,
+
+ TP_PROTO(char state, char event),
+
+ TP_ARGS(state, event),
+
+ TP_STRUCT__entry(
+ __field( char, state )
+ __field( char, event )
+ ),
+
+ TP_fast_assign(
+ __entry->state = state;
+ __entry->event = event;
+ ),
+
+ TP_printk("event %s not expected in the state %s",
+ model_get_event_name_MODEL_NAME(__entry->event),
+ model_get_state_name_MODEL_NAME(__entry->state))
+);
+
+#endif /* _MODEL_NAME_BIG_H */
+
+/* This part ust be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE MODEL_NAME
+#include <trace/define_trace.h>
diff --git a/tools/tracing/rv/dot2/dot2k_templates/main_per_task.c b/tools/tracing/rv/dot2/dot2k_templates/main_per_task.c
new file mode 100644
index 000000000000..5eab9c6f8ab3
--- /dev/null
+++ b/tools/tracing/rv/dot2/dot2k_templates/main_per_task.c
@@ -0,0 +1,96 @@
+#include <linux/ftrace.h>
+#include <linux/tracepoint.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/rv.h>
+#include <rv/da_monitor.h>
+
+#define MODULE_NAME "MODEL_NAME"
+
+/*
+ * This is the self-generated part of the monitor. Generally, there is no need
+ * to touch this section.
+ */
+#include "model.h"
+
+/*
+ * Declare the deterministic automata monitor.
+ *
+ * The rv monitor reference is needed for the monitor declaration.
+ */
+struct rv_monitor rv_MODEL_NAME;
+DECLARE_DA_MON_PER_TASK(MODEL_NAME, MIN_TYPE);
+
+#define CREATE_TRACE_POINTS
+#include "MODEL_NAME.h"
+
+/*
+ * This is the instrumentation part of the monitor.
+ *
+ * This is the section where manual work is required. Here the kernel events
+ * are translated into model's event.
+ *
+ */
+
+TRACEPOINT_HANDLERS_SKEL
+#define NR_TP NR_EVENTS
+static struct tracepoint_hook_helper tracepoints_to_hook[NR_TP] = {
+TRACEPOINT_HOOK_HELPERS
+};
+
+static int start_MODEL_NAME(void)
+{
+ int retval;
+
+ da_monitor_init_MODEL_NAME();
+
+ retval = thh_hook_probes(tracepoints_to_hook, NR_TP);
+ if (retval)
+ goto out_err;
+
+ return 0;
+
+out_err:
+ return -EINVAL;
+}
+
+static void stop_MODEL_NAME(void)
+{
+ rv_MODEL_NAME.enabled = 0;
+ thh_unhook_probes(tracepoints_to_hook, NR_TP);
+ return;
+}
+
+/*
+ * This is the monitor register section.
+ */
+struct rv_monitor rv_MODEL_NAME = {
+ .name = "MODEL_NAME",
+ .description = "auto-generated MODEL_NAME",
+ .start = start_MODEL_NAME,
+ .stop = stop_MODEL_NAME,
+ .reset = da_monitor_reset_all_MODEL_NAME,
+ .enabled = 0,
+};
+
+int register_MODEL_NAME(void)
+{
+ rv_register_monitor(&rv_MODEL_NAME);
+ return 0;
+}
+
+void unregister_MODEL_NAME(void)
+{
+ if (rv_MODEL_NAME.enabled)
+ stop_MODEL_NAME();
+
+ rv_unregister_monitor(&rv_MODEL_NAME);
+}
+
+module_init(register_MODEL_NAME);
+module_exit(unregister_MODEL_NAME);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("dot2k: auto-generated");
+MODULE_DESCRIPTION("MODEL_NAME");
diff --git a/tools/tracing/rv/dot2/dot2k_templates/main_per_task.h b/tools/tracing/rv/dot2/dot2k_templates/main_per_task.h
new file mode 100644
index 000000000000..55fb47265344
--- /dev/null
+++ b/tools/tracing/rv/dot2/dot2k_templates/main_per_task.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM rv
+
+#if !defined(_MODEL_NAME_BIG_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _MODEL_NAME_BIG_TRACE_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(event_MODEL_NAME,
+
+ TP_PROTO(pid_t pid, MIN_TYPE state, MIN_TYPE event, MIN_TYPE next_state, bool safe),
+
+ TP_ARGS(pid, state, event, next_state, safe),
+
+ TP_STRUCT__entry(
+ __field( pid_t, pid )
+ __field( MIN_TYPE, state )
+ __field( MIN_TYPE, event )
+ __field( MIN_TYPE, next_state )
+ __field( bool, safe )
+ ),
+
+ TP_fast_assign(
+ __entry->pid = pid;
+ __entry->state = state;
+ __entry->event = event;
+ __entry->next_state = next_state;
+ __entry->safe = safe;
+ ),
+
+ TP_printk("%d: %s x %s -> %s %s",
+ __entry->pid,
+ model_get_state_name_MODEL_NAME(__entry->state),
+ model_get_event_name_MODEL_NAME(__entry->event),
+ model_get_state_name_MODEL_NAME(__entry->next_state),
+ __entry->safe ? "(safe)" : "")
+);
+
+TRACE_EVENT(error_MODEL_NAME,
+
+ TP_PROTO(pid_t pid, MIN_TYPE state, MIN_TYPE event),
+
+ TP_ARGS(pid, state, event),
+
+ TP_STRUCT__entry(
+ __field( pid_t, pid )
+ __field( MIN_TYPE, state )
+ __field( MIN_TYPE, event )
+ ),
+
+ TP_fast_assign(
+ __entry->pid = pid;
+ __entry->state = state;
+ __entry->event = event;
+ ),
+
+ TP_printk("%d event %s not expected in the state %s",
+ __entry->pid,
+ model_get_event_name_MODEL_NAME(__entry->event),
+ model_get_state_name_MODEL_NAME(__entry->state))
+);
+
+#endif /* _MODEL_NAME_BIG_H */
+
+/* This part ust be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE MODEL_NAME
+#include <trace/define_trace.h>
--
2.33.1
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