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[85.229.14.155]) by smtp.gmail.com with ESMTPSA id p7-20020a2e9a87000000b002adb10a6620sm1990220lji.107.2023.06.13.00.49.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Jun 2023 00:49:34 -0700 (PDT) From: Anders Roxell To: shuah@kernel.org Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, usama.anjum@collabora.com, jhubbard@nvidia.com, Anders Roxell Subject: [PATCH] selftests: lib.mk: fix out-of-tree builds Date: Tue, 13 Jun 2023 09:49:31 +0200 Message-Id: <20230613074931.666966-1-anders.roxell@linaro.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Since commit ("selftests: error out if kernel header files are not yet built") got merged, the kselftest build correctly because the KBUILD_OUTPUT isn't set when building out-of-tree and specifying 'O=3D' This is the error message that pops up. make --silent --keep-going --jobs=3D32 O=3D/home/anders/.cache/tuxmake/buil= ds/1482/build INSTALL_PATH=3D/home/anders/.cache/tuxmake/builds/1482/build/= kselftest_install ARCH=3Darm64 CROSS_COMPILE=3Daarch64-linux-gnu- V=3D1 CRO= SS_COMPILE_COMPAT=3Darm-linux-gnueabihf- kselftest-install make[3]: Entering directory '/home/anders/src/kernel/next/tools/testing/sel= ftests/alsa' -e =1B[1;31merror=1B[0m: missing kernel header files. Please run this and try again: cd /home/anders/src/kernel/next/tools/testing/selftests/../../.. make headers make[3]: Leaving directory '/home/anders/src/kernel/next/tools/testing/self= tests/alsa' make[3]: *** [../lib.mk:77: kernel_header_files] Error 1 Fixing the issue by assigning KBUILD_OUTPUT the same way how its done in kselftest's Makefile. By adding 'KBUILD_OUTPUT :=3D $(O)' 'if $(origin O)' is set to 'command line'. This will set the the BUILD dir to KBUILD_OUTPUT/kselftest when doing out-of-tree builds which makes them in its own separete output directory. Signed-off-by: Anders Roxell Tested-by: Muhammad Usama Anjum --- tools/testing/selftests/lib.mk | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk index b8ea03b9a015..d17854285f2b 100644 --- a/tools/testing/selftests/lib.mk +++ b/tools/testing/selftests/lib.mk @@ -44,6 +44,10 @@ endif selfdir =3D $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) top_srcdir =3D $(selfdir)/../../.. =20 +ifeq ("$(origin O)", "command line") + KBUILD_OUTPUT :=3D $(O) +endif + ifneq ($(KBUILD_OUTPUT),) # Make's built-in functions such as $(abspath ...), $(realpath ...) cann= ot # expand a shell special character '~'. We use a somewhat tedious way he= re. --=20 2.39.2