[PATCH v9 10/10] selftests: add openat2(2) selftests

[Aleksa Sarai]

On 2019-07-08, Michael Ellerman <mpe at ellerman.id.au> wrote:
> Aleksa Sarai <cyphar at cyphar.com> writes:
> > diff --git a/tools/testing/selftests/openat2/Makefile b/tools/testing/selftests/openat2/Makefile
> > new file mode 100644
> > index 000000000000..8235a49928f6
> > --- /dev/null
> > +++ b/tools/testing/selftests/openat2/Makefile
> > @@ -0,0 +1,12 @@
> > +# SPDX-License-Identifier: GPL-2.0
> > +
> > +CFLAGS += -Wall -O2 -g
> > +TEST_GEN_PROGS := linkmode_test resolve_test rename_attack_test
> > +
> > +include ../lib.mk
> > +
> > +$(OUTPUT)/linkmode_test: linkmode_test.c helpers.o
> > +$(OUTPUT)/rename_attack_test: rename_attack_test.c helpers.o
> > +$(OUTPUT)/resolve_test: resolve_test.c helpers.o
> 
> You don't need to tell make that foo depends on foo.c.
> 
> Also if you make the dependency be on helpers.c then you won't get an
> intermediate helpers.o, and then you don't need to clean it.
> 
> So the above three lines could just be:
> 
> $(TEST_GEN_PROGS): helpers.c

I had some trouble getting this to work (hence why I went with the
version in the patch), but it looks like this works. I'll include it in
the next set.

> > +EXTRA_CLEAN = helpers.o $(wildcard /tmp/ksft-openat2-*)
> 
> If you follow my advice above you don't need helpers.o in there.
> 
> Deleting things from /tmp is also a bit fishy on shared machines, ie. it
> will error if those files happen to be owned by another user.

Good point. I'll drop that hunk in the next set.

Thanks!

-- 
Aleksa Sarai
Senior Software Engineer (Containers)
SUSE Linux GmbH
<https://www.cyphar.com/>
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