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SubjectRe: [PATCH v4] selftests: add headers_install to lib.mk
2018-08-07 2:03 GMT+09:00 Shuah Khan <shuah@kernel.org>:
> Hi Anders,
>
> On 07/25/2018 10:08 AM, Anders Roxell wrote:
>> On Tue, 24 Jul 2018 at 19:11, Shuah Khan <shuah@kernel.org> wrote:
>>>
>>> On 07/23/2018 02:49 PM, Anders Roxell wrote:
>>>> On Thu, 7 Jun 2018 at 13:09, Anders Roxell <anders.roxell@linaro.org> wrote:
>>>>>
>>>>> If the kernel headers aren't installed we can't build all the tests.
>>>>> Add a new make target rule 'khdr' in the file lib.mk to generate the
>>>>> kernel headers and that gets include for every test-dir Makefile that
>>>>> includes lib.mk If the testdir in turn have its own sub-dirs the
>>>>> top_srcdir needs to be set to the linux-rootdir to be able to generate
>>>>> the kernel headers.
>>>>>
>>>>> Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
>>>>> Reviewed-by: Fathi Boudra <fathi.boudra@linaro.org>
>>>>> ---
>>>>> Makefile | 14 +-------------
>>>>> scripts/subarch.include | 13 +++++++++++++
>>>>> tools/testing/selftests/android/Makefile | 2 +-
>>>>> tools/testing/selftests/android/ion/Makefile | 2 ++
>>>>> tools/testing/selftests/futex/functional/Makefile | 1 +
>>>>> tools/testing/selftests/gpio/Makefile | 7 ++-----
>>>>> tools/testing/selftests/kvm/Makefile | 7 ++-----
>>>>> tools/testing/selftests/lib.mk | 12 ++++++++++++
>>>>> tools/testing/selftests/net/Makefile | 1 +
>>>>> .../selftests/networking/timestamping/Makefile | 1 +
>>>>> tools/testing/selftests/vm/Makefile | 4 ----
>>>>> 11 files changed, 36 insertions(+), 28 deletions(-)
>>>>> create mode 100644 scripts/subarch.include
>>>>>
>>>>> diff --git a/Makefile b/Makefile
>>>>> index 6b9aea95ae3a..8050072300fa 100644
>>>>> --- a/Makefile
>>>>> +++ b/Makefile
>>>>> @@ -286,19 +286,7 @@ KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
>>>>> KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
>>>>> export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
>>>>>
>>>>> -# SUBARCH tells the usermode build what the underlying arch is. That is set
>>>>> -# first, and if a usermode build is happening, the "ARCH=um" on the command
>>>>> -# line overrides the setting of ARCH below. If a native build is happening,
>>>>> -# then ARCH is assigned, getting whatever value it gets normally, and
>>>>> -# SUBARCH is subsequently ignored.
>>>>> -
>>>>> -SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
>>>>> - -e s/sun4u/sparc64/ \
>>>>> - -e s/arm.*/arm/ -e s/sa110/arm/ \
>>>>> - -e s/s390x/s390/ -e s/parisc64/parisc/ \
>>>>> - -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
>>>>> - -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
>>>>> - -e s/riscv.*/riscv/)
>>>>> +include scripts/subarch.include
>>>
>>> What is the reason for this SUBARCH block move to to scripts/subarch.include?
>>> Is this necessary for adding headers install dependency to lib.mk?
>>
>> This is needed to create headers for cross build.
>>
>
> I am sorry for the delay on this patch. I am going to get this into 4.19.
> If anybody has objections, please let me.
>
> Anders! Will be able to rebase the patch and send me the latest. I think
> I have Acks from kvm, android, and vm so far.
>


I may be missing something about the tools/ directory,
but why isn't it like this?


kselftest: headers_install
$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests







--
Best Regards
Masahiro Yamada

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