Commit 4a3134b1 authored by Steven Rostedt's avatar Steven Rostedt Committed by Shuah Khan
Browse files

selftests/tracing: Test only toplevel README file not the instances 

For the tests that have both a README attribute as well as the instance
flag to run the tests as an instance, the instance version will always
exit with UNSUPPORTED. That's because the instance directory does not
contain a README file. Currently, the tests check for a README file in the
directory that the test runs in and if there's a requirement for something
to be present in the README file, it will not find it, as the instance
directory doesn't have it.

Have the tests check if the current directory is an instance directory,
and if it is, check two directories above the current directory for the
README file:

  /sys/kernel/tracing/README
  /sys/kernel/tracing/instances/foo/../../README

Link: https://lore.kernel.org/r/20250220185846.130216270@goodmis.org


Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent a64dcfb4

tools/testing/selftests/ftrace/test.d/functions

+7 −1
Original line number Diff line number Diff line
@@ -156,7 +156,13 @@ check_requires() { # Check required files and tracers 
                exit_unsupported

            fi

        elif [ "$r" != "$i" ]; then

            if ! grep -Fq "$r" README ; then

	    # If this is an instance, check the top directory

	    if echo $TRACING_DIR | grep -q "/instances/"; then

		test="$TRACING_DIR/../.."

	    else

		test=$TRACING_DIR

	    fi

            if ! grep -Fq "$r" $test/README ; then

                echo "Required feature pattern \"$r\" is not in README."

                exit_unsupported

            fi