Re: [PATCH v2 0/6] enable O and KBUILD_OUTPUT for kselftest

[Bamvor Zhang Jian <bamvor.zhangjian@linaro.org>]

Hi, Shuah, Michael

On 30 November 2016 at 22:17, Shuah Khan <shuahkh@osg.samsung.com> wrote:
> On 11/29/2016 04:55 AM, bamvor.zhangjian@huawei.com wrote:
>> From: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
>>
>> Here is my second version for enabling the KBUILD_OUTPUT for kselftest.
>> The first version could be found here[1]. I fix and test all the TARGET
>> in tools/testing/selftest/Makefile. For ppc, I test through fake target.
>>
>> There are six patches in these series. And five of them clean up the
>> existing code. I split the clean up patches into five, hope it is easy
>> to review.
>>
>>   selftests: remove duplicated all and clean target
>>   selftests: remove useless TEST_DIRS
>> a selftests: add pattern rules
>> A selftests: remove CROSS_COMPILE in dedicated Makefile
>> A selftests: add EXTRA_CLEAN for clean target
>>   selftests: enable O and KBUILD_OUTPUT
>>
>> Notes:
>>   A: Ack by Michael.
>>   a: ack by Michael. Minor update after rebase.
>
> Bamovar/Michael,
>
> Are these rebased to linux-next? Michael was concerned about
> conflicts with powerpc tree. Would rebasing to linux-next help
> avoiding conflicts?
Yes. I rebase to latest linux-next. It is taged as 1128 when I rebase
them yesterday. I fix some conflict when rebase.

Regards

Bamvor
>
> Still looking to get them into 4.10 if possible.

>
> thanks,
> -- Shuah
>
>>
>> In the first patch, I split the test files into two types:
>> TEST_GEN_XXX means such file is generated during compiling. TEST_XXX
>> means there is no need to compile before use. The main reason of this
>> is the enablement of KBUILD_OUTPUT only need to care about TEST_GEN_XXX.
>> I wanted to copy all the TEST_XXX with TEST_GEN_XXX, but I give up this
>> idea in the end. Because people may puzzle why copy the file before
>> installation.
>>
>> Because of the introducing of TEST_GEN_XXX, I update the top-level
>> Makefile and lib.mk selftests directory. After introduce TEST_GEN_XXX, I
>> could remove all the unnecessary all and clean targets.
>>
>> The second patch remove TEST_DIRS variable. And third patch add the
>> pattern for compiling the c sourc code. The fourth patch remove the
>> useless CROSS_COMPILE variable as it aleady exists in
>> "tools/testing/selftests/lib.mk".
>>
>> Further more, The fifth patch add the EXTRA_CLEAN variable to clean up
>> the duplicated clean target
>>
>> The last patch introduce the KBUILD_OUTPUT and O for kselftest instead
>> using the existing kbuild system because user may compile kselftest
>> directly (make -C tools/testing/selftests).
>>
>> Changes:
>> 1.  remove the useless *.o target in the following file suggested by
>>     Michael:
>>     tools/testing/selftests/powerpc/benchmarks/Makefile
>>     tools/testing/selftests/powerpc/copyloops/Makefile
>>     tools/testing/selftests/powerpc/dscr/Makefile
>>     tools/testing/selftests/powerpc/math/Makefile
>>     tools/testing/selftests/powerpc/primitives/Makefile
>>     tools/testing/selftests/powerpc/stringloops/Makefile
>>     tools/testing/selftests/powerpc/syscalls/Makefile
>>     tools/testing/selftests/powerpc/tm/Makefile
>>
>> 2.  remove the useless "all" and "clean" target in bpf and nsfs which
>>     are added after my previous patch.
>>
>> 3.  Improve the commit message.
>>
>> [1] http://www.spinics.net/lists/linux-api/msg20789.html
>>
>> Bamvor Jian Zhang (6):
>>   selftests: remove duplicated all and clean target
>>   selftests: remove useless TEST_DIRS
>>   selftests: add default rules for c source file
>>   selftests: remove CROSS_COMPILE in dedicated Makefile
>>   selftests: add EXTRA_CLEAN for clean target
>>   selftests: enable O and KBUILD_OUTPUT
>>
>>  Documentation/kselftest.txt                        | 12 +++++++
>>  tools/testing/selftests/Makefile                   | 36 ++++++++++++++-----
>>  tools/testing/selftests/bpf/Makefile               | 10 ++----
>>  tools/testing/selftests/breakpoints/Makefile       | 10 ++----
>>  tools/testing/selftests/capabilities/Makefile      | 11 ++----
>>  tools/testing/selftests/efivarfs/Makefile          |  8 +----
>>  tools/testing/selftests/exec/Makefile              | 32 ++++++++---------
>>  tools/testing/selftests/ftrace/Makefile            |  6 ++--
>>  tools/testing/selftests/futex/Makefile             | 21 ++++++++---
>>  tools/testing/selftests/futex/functional/Makefile  | 12 ++-----
>>  tools/testing/selftests/ipc/Makefile               |  7 +---
>>  tools/testing/selftests/kcmp/Makefile              |  6 ++--
>>  tools/testing/selftests/lib.mk                     | 36 +++++++++++++++----
>>  tools/testing/selftests/membarrier/Makefile        |  6 +---
>>  tools/testing/selftests/memfd/Makefile             | 15 ++------
>>  tools/testing/selftests/mount/Makefile             |  7 +---
>>  tools/testing/selftests/mqueue/Makefile            |  6 +---
>>  tools/testing/selftests/net/Makefile               | 15 +++-----
>>  tools/testing/selftests/nsfs/Makefile              |  9 +----
>>  tools/testing/selftests/powerpc/Makefile           | 15 ++++----
>>  tools/testing/selftests/powerpc/alignment/Makefile |  9 ++---
>>  .../testing/selftests/powerpc/benchmarks/Makefile  | 15 +++-----
>>  .../selftests/powerpc/context_switch/Makefile      |  9 ++---
>>  tools/testing/selftests/powerpc/copyloops/Makefile | 19 ++++------
>>  tools/testing/selftests/powerpc/dscr/Makefile      | 13 +++----
>>  tools/testing/selftests/powerpc/math/Makefile      | 25 ++++++-------
>>  tools/testing/selftests/powerpc/mm/Makefile        | 18 ++++------
>>  tools/testing/selftests/powerpc/pmu/Makefile       | 26 +++++++-------
>>  tools/testing/selftests/powerpc/pmu/ebb/Makefile   | 15 +++-----
>>  .../testing/selftests/powerpc/primitives/Makefile  |  9 ++---
>>  .../testing/selftests/powerpc/stringloops/Makefile |  9 ++---
>>  .../selftests/powerpc/switch_endian/Makefile       | 17 ++++-----
>>  tools/testing/selftests/powerpc/syscalls/Makefile  |  9 ++---
>>  tools/testing/selftests/powerpc/tm/Makefile        | 17 ++++-----
>>  tools/testing/selftests/powerpc/vphn/Makefile      | 10 ++----
>>  tools/testing/selftests/pstore/Makefile            |  4 +--
>>  tools/testing/selftests/ptrace/Makefile            |  8 +----
>>  tools/testing/selftests/seccomp/Makefile           |  6 +---
>>  tools/testing/selftests/sigaltstack/Makefile       |  5 +--
>>  tools/testing/selftests/size/Makefile              | 10 ++----
>>  tools/testing/selftests/timers/Makefile            | 10 ++----
>>  tools/testing/selftests/vm/Makefile                | 41 +++++++++-------------
>>  tools/testing/selftests/x86/Makefile               | 17 +++++----
>>  tools/testing/selftests/zram/Makefile              |  3 +-
>>  44 files changed, 247 insertions(+), 357 deletions(-)
>>
>
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