diff options
Diffstat (limited to 'tools/testing/selftests/ftrace')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc new file mode 100644 index 000000000000..e2ff3bf4df80 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc @@ -0,0 +1,58 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event filter function - test event filtering on functions +# requires: set_event events/kmem/kmem_cache_free/filter +# flags: instance + +fail() { #msg + echo $1 + exit_fail +} + +echo "Test event filter function name" +echo 0 > tracing_on +echo 0 > events/enable +echo > trace +echo 'call_site.function == exit_mmap' > events/kmem/kmem_cache_free/filter +echo 1 > events/kmem/kmem_cache_free/enable +echo 1 > tracing_on +ls > /dev/null +echo 0 > events/kmem/kmem_cache_free/enable + +hitcnt=`grep kmem_cache_free trace| grep exit_mmap | wc -l` +misscnt=`grep kmem_cache_free trace| grep -v exit_mmap | wc -l` + +if [ $hitcnt -eq 0 ]; then + exit_fail +fi + +if [ $misscnt -gt 0 ]; then + exit_fail +fi + +address=`grep ' exit_mmap$' /proc/kallsyms | cut -d' ' -f1` + +echo "Test event filter function address" +echo 0 > tracing_on +echo 0 > events/enable +echo > trace +echo "call_site.function == 0x$address" > events/kmem/kmem_cache_free/filter +echo 1 > events/kmem/kmem_cache_free/enable +echo 1 > tracing_on +sleep 1 +echo 0 > events/kmem/kmem_cache_free/enable + +hitcnt=`grep kmem_cache_free trace| grep exit_mmap | wc -l` +misscnt=`grep kmem_cache_free trace| grep -v exit_mmap | wc -l` + +if [ $hitcnt -eq 0 ]; then + exit_fail +fi + +if [ $misscnt -gt 0 ]; then + exit_fail +fi + +reset_events_filter + +exit 0 |