diff options
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc new file mode 100644 index 000000000..555629260 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc @@ -0,0 +1,45 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Kprobe dynamic event with function tracer +# requires: kprobe_events stack_trace_filter function:tracer + +# prepare +echo nop > current_tracer +echo $FUNCTION_FORK > set_ftrace_filter +echo "p:testprobe $FUNCTION_FORK" > kprobe_events + +# kprobe on / ftrace off +echo 1 > events/kprobes/testprobe/enable +echo > trace +( echo "forked") +grep testprobe trace +! grep "$FUNCTION_FORK <-" trace + +# kprobe on / ftrace on +echo function > current_tracer +echo > trace +( echo "forked") +grep testprobe trace +grep "$FUNCTION_FORK <-" trace + +# kprobe off / ftrace on +echo 0 > events/kprobes/testprobe/enable +echo > trace +( echo "forked") +! grep testprobe trace +grep "$FUNCTION_FORK <-" trace + +# kprobe on / ftrace on +echo 1 > events/kprobes/testprobe/enable +echo function > current_tracer +echo > trace +( echo "forked") +grep testprobe trace +grep "$FUNCTION_FORK <-" trace + +# kprobe on / ftrace off +echo nop > current_tracer +echo > trace +( echo "forked") +grep testprobe trace +! grep "$FUNCTION_FORK <-" trace |