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selftests/kselftest/runner/run_one(): allow running non-executable files 

When running a test program, 'run_one()' checks if the program has the
execution permission and fails if it doesn't.  However, it's easy to
mistakenly lose the permissions, as some common tools like 'diff' don't
support the permission change well[1].  Compared to that, making mistakes
in the test program's path would only rare, as those are explicitly listed
in 'TEST_PROGS'.  Therefore, it might make more sense to resolve the
situation on our own and run the program.

For this reason, this commit makes the test program runner function still
print the warning message but to try parsing the interpreter of the
program and to explicitly run it with the interpreter, in this case.

[1] https://lore.kernel.org/mm-commits/YRJisBs9AunccCD4@kroah.com/

Link: https://lkml.kernel.org/r/20210810164534.25902-1-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
SeongJae Park 2021-11-08 18:35:56 -08:00 committed by Linus Torvalds
parent 2128f4e21a
commit 303f8e2d02
1 changed files with 18 additions and 10 deletions
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28
tools/testing/selftests/kselftest/runner.sh
View File

@ -33,9 +33,9 @@ tap_timeout()
{
# Make sure tests will time out if utility is available.
if [ -x /usr/bin/timeout ] ; then
/usr/bin/timeout --foreground "$kselftest_timeout" "$1"
/usr/bin/timeout --foreground "$kselftest_timeout" $1
else
"$1"
$1
fi
}
@ -65,17 +65,25 @@ run_one()
TEST_HDR_MSG="selftests: $DIR: $BASENAME_TEST"
echo "# $TEST_HDR_MSG"
if [ ! -x "$TEST" ]; then
echo -n "# Warning: file $TEST is "
if [ ! -e "$TEST" ]; then
echo "missing!"
else
echo "not executable, correct this."
fi
if [ ! -e "$TEST" ]; then
echo "# Warning: file $TEST is missing!"
echo "not ok $test_num $TEST_HDR_MSG"
else
cmd="./$BASENAME_TEST"
if [ ! -x "$TEST" ]; then
echo "# Warning: file $TEST is not executable"
if [ $(head -n 1 "$TEST" | cut -c -2) = "#!" ]
then
interpreter=$(head -n 1 "$TEST" | cut -c 3-)
cmd="$interpreter ./$BASENAME_TEST"
else
echo "not ok $test_num $TEST_HDR_MSG"
return
fi
fi
cd `dirname $TEST` > /dev/null
((((( tap_timeout ./$BASENAME_TEST 2>&1; echo $? >&3) |
((((( tap_timeout "$cmd" 2>&1; echo $? >&3) |
tap_prefix >&4) 3>&1) |
(read xs; exit $xs)) 4>>"$logfile" &&
echo "ok $test_num $TEST_HDR_MSG") ||