| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0 |
| # description: Generic dynamic event - add/remove tracepoint probe events |
| # requires: dynamic_events "t[:[<group>/][<event>]] <tracepoint> [<args>]":README |
| |
| echo 0 > events/enable |
| echo > dynamic_events |
| |
| TRACEPOINT1=kmem_cache_alloc |
| TRACEPOINT2=kmem_cache_free |
| |
| echo "t:myevent1 $TRACEPOINT1" >> dynamic_events |
| echo "t:myevent2 $TRACEPOINT2" >> dynamic_events |
| |
| grep -q myevent1 dynamic_events |
| grep -q myevent2 dynamic_events |
| test -d events/tracepoints/myevent1 |
| test -d events/tracepoints/myevent2 |
| |
| echo "-:myevent2" >> dynamic_events |
| |
| grep -q myevent1 dynamic_events |
| ! grep -q myevent2 dynamic_events |
| |
| echo > dynamic_events |
| |
| clear_trace |
