diff options
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc new file mode 100644 index 000000000000..9330c873f9fe --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc @@ -0,0 +1,24 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: ftrace - function trace on module + +[ ! -f set_ftrace_filter ] && exit_unsupported + +: "mod: allows to filter a non exist function" +echo 'non_exist_func:mod:non_exist_module' > set_ftrace_filter +grep -q "non_exist_func" set_ftrace_filter + +: "mod: on exist module" +echo '*:mod:trace_printk' > set_ftrace_filter +if ! modprobe trace-printk ; then + echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK= +m" + exit_unresolved; +fi + +: "Wildcard should be resolved after loading module" +grep -q "trace_printk_irq_work" set_ftrace_filter + +: "After removing the filter becomes empty" +rmmod trace_printk +test `cat set_ftrace_filter | wc -l` -eq 0 |