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rv/include: Add instrumentation helper functions

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Instrumentation helper functions to facilitate the instrumentation of
auto-generated RV monitors create by dot2k.

Link: https://lkml.kernel.org/r/3b36c9435f9d9299beb84e5c7c46920e205bedec.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>
This commit is contained in:
Daniel Bristot de Oliveira 2022-07-29 11:38:44 +02:00 committed by Steven Rostedt (Google)
parent 792575348f
commit cc8e71c817
1 changed files with 29 additions and 0 deletions
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29
include/rv/instrumentation.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
*
* Helper functions to facilitate the instrumentation of auto-generated
* RV monitors create by dot2k.
*
* The dot2k tool is available at tools/verification/dot2/
*/
#include <linux/ftrace.h>
/*
* rv_attach_trace_probe - check and attach a handler function to a tracepoint
*/
#define rv_attach_trace_probe(monitor, tp, rv_handler) \
do { \
check_trace_callback_type_##tp(rv_handler); \
WARN_ONCE(register_trace_##tp(rv_handler, NULL), \
"fail attaching " #monitor " " #tp "handler"); \
} while (0)
/*
* rv_detach_trace_probe - detach a handler function to a tracepoint
*/
#define rv_detach_trace_probe(monitor, tp, rv_handler) \
do { \
unregister_trace_##tp(rv_handler, NULL); \
} while (0)