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selftests: ftrace: Allow some tests to be run in a tracing instance

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An tracing instance has several of the same capabilities as the top level
instance, but may be implemented slightly different. Instead of just writing
tests that duplicat the same test cases of the top level instance, allow a
test to be written for both the top level as well as for an instance.

If a test case can be run in both the top level as well as in an tracing
instance directory, then it should add a tag "# flags: instance" in the
header of the test file. Then after all tests have run, any test that has an
instance flag set, will run again within a tracing instance.

Link: http://lkml.kernel.org/r/20170421233850.1d0e9e05@gandalf.local.home

Cc: Shuah Khan <shuah@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (VMware) 2017-04-20 12:53:18 -04:00
parent dcc19d2809
commit b5b77be812
1 changed files with 17 additions and 1 deletions
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18
tools/testing/selftests/ftrace/ftracetest
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@ -150,11 +150,16 @@ XFAILED_CASES=
UNDEFINED_CASES=
TOTAL_RESULT=0
INSTANCE=
CASENO=0
testcase() { # testfile
CASENO=$((CASENO+1))
desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:`
prlog -n "[$CASENO]$desc"
prlog -n "[$CASENO]$INSTANCE$desc"
}
test_on_instance() { # testfile
grep -q "^#[ \t]*flags:.*instance" $1
}
eval_result() { # sigval
@ -271,6 +276,17 @@ for t in $TEST_CASES; do
run_test $t
done
# Test on instance loop
INSTANCE=" (instance) "
for t in $TEST_CASES; do
test_on_instance $t || continue
SAVED_TRACING_DIR=$TRACING_DIR
export TRACING_DIR=`mktemp -d $TRACING_DIR/instances/ftracetest.XXXXXX`
run_test $t
rmdir $TRACING_DIR
TRACING_DIR=$SAVED_TRACING_DIR
done
prlog ""
prlog "# of passed: " `echo $PASSED_CASES | wc -w`
prlog "# of failed: " `echo $FAILED_CASES | wc -w`