| /* 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) |