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Re: [PATCH 1/5] test_kmod: make selftest executable

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Andrew Morton <akpm@linux-foundation.org> writes:
> On Wed,  2 Aug 2017 14:14:46 -0700 "Luis R. Rodriguez" <mcgrof@kernel.org> wrote:
>
>> We had just forgotten to do this.
>> 
>> Fixes: 39258f448d71 ("kmod: add test driver to stress test the module loader")
>> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
>> ---
>>  tools/testing/selftests/kmod/kmod.sh | 0
>>  1 file changed, 0 insertions(+), 0 deletions(-)
>>  mode change 100644 => 100755 tools/testing/selftests/kmod/kmod.sh
>> 
>> diff --git a/tools/testing/selftests/kmod/kmod.sh b/tools/testing/selftests/kmod/kmod.sh
>> old mode 100644
>> new mode 100755
>
> This is pretty fragile - I'm not sure that patch/diff are capable of
> communicating a bare chmod.  If someone does a "patch -p1 < patch-4.14"
> or whatever, this change is likely to get lost.
>
> It's more robust to not care about the x bit at all.  Something like
> this?
>
> --- a/tools/testing/selftests/lib.mk~a
> +++ a/tools/testing/selftests/lib.mk
> @@ -14,7 +14,7 @@ all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_
>  define RUN_TESTS
>  	@for TEST in $(TEST_GEN_PROGS) $(TEST_PROGS); do \
>  		BASENAME_TEST=`basename $$TEST`;	\
> -		cd `dirname $$TEST`; (./$$BASENAME_TEST && echo "selftests: $$BASENAME_TEST [PASS]") || echo "selftests:  $$BASENAME_TEST [FAIL]"; cd -;\
> +		cd `dirname $$TEST`; (/bin/sh ./$$BASENAME_TEST && echo "selftests: $$BASENAME_TEST [PASS]") || echo "selftests:  $$BASENAME_TEST [FAIL]"; cd -;\
>  	done;
>  endef

Most (many?) of the tests aren't shell scripts, so that doesn't work, eg:

  $ make -C tools/testing/selftests/ TARGETS=kcmp run_tests
  ...
  make[1]: Entering directory '/home/michael/linus/tools/testing/selftests/kcmp'
  ./kcmp_test: 1: ./kcmp_test: ELF.
..
0.@�.@@..@@.@.�.�.....
....
.����.��.�.�.
..�.�..�.�.�.....DD.Q�td.R�td.����.��../lib64/ld64.so.2..GNU...GNUC{: not found
  ./kcmp_test: 13: ./kcmp_test: Syntax error: Unterminated quoted string
  selftests:  kcmp_test [FAIL]


Also some of the ones which are shell scripts require bash, and /bin/sh
may not be bash, eg:

  $ make -C tools/testing/selftests/ TARGETS=cpu-hotplug run_tests
  ...
  make[1]: Entering directory '/home/michael/linus/tools/testing/selftests/cpu-hotplug'
  ./cpu-on-off-test.sh: 9: [: !=: unexpected operator


cheers

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[PATCH 1/5] test_kmod: make selftest executable "Luis R. Rodriguez" <mcgrof@kernel.org> - 2017-08-02 23:20 +0200
  Re: [PATCH 1/5] test_kmod: make selftest executable Andrew Morton <akpm@linux-foundation.org> - 2017-08-03 00:50 +0200
    Re: [PATCH 1/5] test_kmod: make selftest executable "Luis R. Rodriguez" <mcgrof@kernel.org> - 2017-08-03 01:00 +0200
      Re: [PATCH 1/5] test_kmod: make selftest executable "Luis R. Rodriguez" <mcgrof@kernel.org> - 2017-08-03 01:50 +0200
      Re: [PATCH 1/5] test_kmod: make selftest executable Andrew Morton <akpm@linux-foundation.org> - 2017-08-03 01:50 +0200
        Re: [PATCH 1/5] test_kmod: make selftest executable Shuah Khan <shuah@kernel.org> - 2017-08-03 02:10 +0200
      Re: [PATCH 1/5] test_kmod: make selftest executable Shuah Khan <shuah@kernel.org> - 2017-08-03 02:00 +0200
    Re: [PATCH 1/5] test_kmod: make selftest executable Michael Ellerman <mpe@ellerman.id.au> - 2017-08-08 12:00 +0200
      Re: [PATCH 1/5] test_kmod: make selftest executable "Luis R. Rodriguez" <mcgrof@kernel.org> - 2017-08-08 20:00 +0200

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