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[24.9.64.241]) by smtp.gmail.com with ESMTPSA id b5sm2334097iln.64.2020.03.11.16.31.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Mar 2020 16:31:57 -0700 (PDT) Subject: Re: [PATCH 1/4] selftests: Fix kselftest O=objdir build from cluttering top level objdir To: Kevin Hilman , shuah@kernel.org Cc: mpe@ellerman.id.au, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Shuah Khan References: <58d954867391c90fe0792d87e09a82bda26ba4fc.1583358715.git.skhan@linuxfoundation.org> <7hwo7qijn0.fsf@baylibre.com> From: Shuah Khan Message-ID: Date: Wed, 11 Mar 2020 17:31:56 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <7hwo7qijn0.fsf@baylibre.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/11/20 4:58 PM, Kevin Hilman wrote: > Shuah Khan writes: > >> make kselftest-all O=objdir builds create generated objects in objdir. >> This clutters the top level directory with kselftest objects. Fix it >> to create sub-directory under objdir for kselftest objects. >> >> Signed-off-by: Shuah Khan > > Only somewhat related to this patch, another problem that wasn't in your > doci is that the current O= support doesn't support relative paths. > Yes I am aware of it and it is in the document as something that will be addressed later. "Note: Relative paths don’t work - supporting relative paths breaks work-flows e.g: powerpc. Explore fix. Compile work-flows. Not planning to support at the moment." > For example, using O=/tmp/build-arm64 works, but O=build-arm64 doesn't. > Try this: > > $ make ARCH=arm64 HOSTCC=gcc CROSS_COMPILE=aarch64-linux-gnu- O=build-arm64 defconfig > $ make ARCH=arm64 HOSTCC=gcc CROSS_COMPILE=aarch64-linux-gnu- O=build-arm64 kselftest-all > make[1]: Entering directory '/work/kernel/linux/build-arm64' > make --no-builtin-rules INSTALL_HDR_PATH=$BUILD/usr \ > ARCH=arm64 -C ../../.. headers_install > make[4]: ../scripts/Makefile.build: No such file or directory > make[4]: *** No rule to make target '../scripts/Makefile.build'. Stop. > Makefile:500: recipe for target 'scripts_basic' failed > make[3]: *** [scripts_basic] Error 2 > Makefile:151: recipe for target 'khdr' failed > make[2]: *** [khdr] Error 2 > /work/kernel/linux/Makefile:1220: recipe for target 'kselftest-all' failed > make[1]: *** [kselftest-all] Error 2 > make[1]: Leaving directory '/work/kernel/linux/build-arm64' > Makefile:179: recipe for target 'sub-make' failed > make: *** [sub-make] Error 2 > I am looking to address build and install issues first. thanks, -- Shuah