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| author | Daniel Bristot de Oliveira <bristot@kernel.org> | 2022-07-29 11:38:44 +0200 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-07-30 14:01:28 -0400 |
| commit | cc8e71c81746de1f8a44873015bc963a868eccba (patch) | |
| tree | de52b07f3a42da570fb1aaaf7222c971fdd3db53 /include/rv/instrumentation.h | |
| parent | 792575348ff70e05c6040d02fce38e949ef92c37 (diff) | |
| download | lwn-cc8e71c81746de1f8a44873015bc963a868eccba.tar.gz lwn-cc8e71c81746de1f8a44873015bc963a868eccba.zip | |
rv/include: Add instrumentation helper functions
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>
Diffstat (limited to 'include/rv/instrumentation.h')
| -rw-r--r-- | include/rv/instrumentation.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/rv/instrumentation.h b/include/rv/instrumentation.h new file mode 100644 index 000000000000..d4e7a02ede1a --- /dev/null +++ b/include/rv/instrumentation.h @@ -0,0 +1,29 @@ +/* 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) |