On Fri, 17 Aug 2018 01:40:59 +0900 Masami Hiramatsu mhiramat@kernel.org wrote:
Add a testcase for function filter on module.
Signed-off-by: Masami Hiramatsu mhiramat@kernel.org
.../ftrace/test.d/ftrace/func_mod_trace.tc | 24 ++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
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..359380c3834f --- /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.ko ; then
Need to remove the '.ko'
-- Steve
- 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