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Date:   Mon, 5 Aug 2019 12:47:19 +0300
From:   "Dmitry V. Levin" <ldv@altlinux.org>
To:     kernel test robot <rong.a.chen@intel.com>
Cc:     Shuah Khan <shuah@kernel.org>,
        Elvira Khabirova <lineprinter@altlinux.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Oleg Nesterov <oleg@redhat.com>,
        Kees Cook <keescook@chromium.org>,
        Andy Lutomirski <luto@kernel.org>,
        Eugene Syromyatnikov <esyr@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        kbuild test robot <lkp@intel.com>, lkp@01.org,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: [ptrace] 201766a20e: kernel_selftests.seccomp.make_fail
Message-ID: <20190805094719.GA1693@altlinux.org>
References: <20190729093530.GL22106@shao2-debian>
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On Mon, Jul 29, 2019 at 05:35:30PM +0800, kernel test robot wrote:
> FYI, we noticed the following commit (built with gcc-7):
>=20
> commit: 201766a20e30f982ccfe36bebfad9602c3ff574a ("ptrace: add PTRACE_GET=
_SYSCALL_INFO request")
> https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.g=
it master
>=20
> in testcase: kernel_selftests
> with following parameters:
>=20
> 	group: kselftests-02
>=20
> test-description: The kernel contains a set of "self tests" under the too=
ls/testing/selftests/ directory. These are intended to be small unit tests =
to exercise individual code paths in the kernel.
> test-url: https://www.kernel.org/doc/Documentation/kselftest.txt

The URL above also says: "Tests are intended to be run after building,
installing and booting a kernel".

Please build selftests with installed kernel headers corresponding to the
installed kernel.

Alternatively, tools/testing/selftests/lib.mk could be extended
to include uapi headers from the kernel tree into CPPFLAGS, e.g.

diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 1c8a1963d03f..b5f4f0fb8eeb 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -10,6 +10,9 @@ ifeq (0,$(MAKELEVEL))
 endif
 selfdir =3D $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
=20
+uapi_dir =3D $(realpath $(selfdir)/../../../include/uapi)
+CPPFLAGS +=3D -I$(uapi_dir)
+
 # The following are built by lib.mk common compile rules.
 # TEST_CUSTOM_PROGS should be used by tests that require
 # custom build rule and prevent common build rule use.


--=20
ldv

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