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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 <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Marco Elver <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Gabriele Paoloni <[email protected]>
Cc: Juri Lelli <[email protected]>
Cc: Clark Williams <[email protected]>
Cc: Tao Zhou <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Daniel Bristot de Oliveira <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>
This commit is contained in:
Daniel Bristot de Oliveira authored and Steven Rostedt (Google) committed 2022-07-30 14:01:28 -04:00
1 parent 792575348f
commit cc8e71c817
1 file changed
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include/rv/instrumentation.h
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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)