Hello Shuah,
I was wondering if you had a chance to read this patch.
Without this patch, DAMON selftest fails as below:
$ make -C tools/testing/selftests/damon/ run_tests
make: Entering directory '/home/sjpark/linux/tools/testing/selftests/damon'
TAP version 13
1..1
# selftests: damon: debugfs_attrs.sh
# Warning: file debugfs_attrs.sh is not executable, correct this.
not ok 1 selftests: damon: debugfs_attrs.sh
make: Leaving directory '/home/sjpark/linux/tools/testing/selftests/damon'
If you disagree in the approach, please also take a look in this one:
https://lore.kernel.org/linux-kselftest/20210810112050.22225-1-sj38.park@xxxxxxxxx/
Thanks,
SJ
On Mon, 13 Sep 2021 11:24:42 +0000 SeongJae Park <sj38.park@xxxxxxxxx> wrote:
> From: SeongJae Park <sjpark@xxxxxxxxx>
>
> Hello Shuah,
>
>
> Could you I ask your comment for this patch?
>
>
> Thanks,
> SJ
>
> On Tue, 10 Aug 2021 16:45:34 +0000 SeongJae Park <sj38.park@xxxxxxxxx> wrote:
>
> > From: SeongJae Park <sjpark@xxxxxxxxx>
> >
> > 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 missing the permission, 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 the reason, this commit makes the test program runner function to
> > still print the warning message but try parsing the interpreter of the
> > program and explicitly run it with the interpreter, in the case.
> >
> > [1] https://lore.kernel.org/mm-commits/YRJisBs9AunccCD4@xxxxxxxxx/
> >
> > Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Signed-off-by: SeongJae Park <sjpark@xxxxxxxxx>
> > ---
> > Changes from v1
> > (https://lore.kernel.org/linux-kselftest/20210810140459.23990-1-sj38.park@xxxxxxxxx/)
> > - Parse and use the interpreter instead of changing the file
> >
> > tools/testing/selftests/kselftest/runner.sh | 28 +++++++++++++--------
> > 1 file changed, 18 insertions(+), 10 deletions(-)
> >
> > diff --git a/tools/testing/selftests/kselftest/runner.sh b/tools/testing/selftests/kselftest/runner.sh
> > index cc9c846585f0..a9ba782d8ca0 100644
> > --- a/tools/testing/selftests/kselftest/runner.sh
> > +++ b/tools/testing/selftests/kselftest/runner.sh
> > @@ -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") ||
> > --
> > 2.17.1
> >
