Instrumentation helper functions to facilitate the instrumentation of
auto-generated RV monitors create by dot2k.
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
Cc: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Cc: Gabriele Paoloni <gpaoloni@xxxxxxxxxx>
Cc: Juri Lelli <juri.lelli@xxxxxxxxxx>
Cc: Clark Williams <williams@xxxxxxxxxx>
Cc: linux-doc@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-trace-devel@xxxxxxxxxxxxxxx
Signed-off-by: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>
---
include/rv/instrumentation.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 include/rv/instrumentation.h
diff --git a/include/rv/instrumentation.h b/include/rv/instrumentation.h
new file mode 100644
index 000000000000..88dd33f10827
--- /dev/null
+++ b/include/rv/instrumentation.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Helper functions to facilitate the instrumentation of auto-generated
+ * RV monitors create by dot2k.
+ *
+ * The dot2k tool is available at tools/tracing/rv/dot2/
+ *
+ * Copyright (C) 2019-2022 Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>
+ */
+
+#include <linux/ftrace.h>
+
+#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)
+
+#define rv_detach_trace_probe(monitor, tp, rv_handler) \
+ do { \
+ unregister_trace_##tp(rv_handler, NULL); \
+ } while (0)
--
2.35.1
