Commit 7916b0d8 authored Aug 30, 2018 by Masami Hiramatsu Committed by Greg Kroah-Hartman Nov 28, 2019

selftests/ftrace: Fix to test kprobe $comm arg only if available



[ Upstream commit 2452c96e617a0ff6fb2692e55217a3fa57a7322c ]

Test $comm in kprobe-event argument syntax testcase
only if it is supported on the kernel because
$comm has been introduced 4.8 kernel.
So on older stable kernel, it should be skipped.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 072404a1

tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc

+3 −0

Original line number	Diff line number	Diff line
		@@ -71,8 +71,11 @@ test_badarg "\$stackp" "\$stack0+10" "\$stack1-10"
		echo "r ${PROBEFUNC} \$retval" > kprobe_events
		! echo "p ${PROBEFUNC} \$retval" > kprobe_events

		# $comm was introduced in 4.8, older kernels reject it.
		if grep -A1 "fetcharg:" README \| grep -q '\$comm' ; then
		: "Comm access"
		test_goodarg "\$comm"
		fi

		: "Indirect memory access"
		test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \