1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
4 *
5 * Helper functions to facilitate the instrumentation of auto-generated
6 * RV monitors create by dot2k.
7 *
8 * The dot2k tool is available at tools/verification/dot2/
9 */
10
11 #include <linux/ftrace.h>
12
13 /*
14 * rv_attach_trace_probe - check and attach a handler function to a tracepoint
15 */
16 #define rv_attach_trace_probe(monitor, tp, rv_handler) \
17 do { \
18 check_trace_callback_type_##tp(rv_handler); \
19 WARN_ONCE(register_trace_##tp(rv_handler, NULL), \
20 "fail attaching " #monitor " " #tp "handler"); \
21 } while (0)
22
23 /*
24 * rv_detach_trace_probe - detach a handler function to a tracepoint
25 */
26 #define rv_detach_trace_probe(monitor, tp, rv_handler) \
27 do { \
28 unregister_trace_##tp(rv_handler, NULL); \
29 } while (0)
30
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