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From: Cristian Marussi <cristian.marussi@arm.com>
To: Anders Roxell <anders.roxell@linaro.org>
Cc: linux-kselftest@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, shuah@kernel.org,
	andreyknvl@google.com, dave.martin@arm.com, amit.kachhap@arm.com
Subject: Re: [PATCH v6 01/11] kselftest: arm64: extend toplevel skeleton Makefile
Date: Tue, 17 Sep 2019 16:17:00 +0100
Message-ID: <38863e6e-4d6f-b7a6-2add-937fff9e5ef2@arm.com> (raw)
In-Reply-To: <20190917134223.GA2695@localhost.localdomain>

Hi Anders

thanks for the review.

On 17/09/2019 14:42, Anders Roxell wrote:
> On 2019-09-10 13:31, Cristian Marussi wrote:
>> Modify KSFT arm64 toplevel Makefile to maintain arm64 kselftests organized
>> by subsystem, keeping them into distinct subdirectories under arm64 custom
>> KSFT directory: tools/testing/selftests/arm64/
>>
>> Add to such toplevel Makefile a mechanism to guess the effective location
>> of Kernel headers as installed by KSFT framework.
>>
>> Fit existing arm64 tags kselftest into this new schema moving them into
>> their own subdirectory (arm64/tags).
>>
>> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
>> ---
>> Based on:
>> commit 9ce1263033cd ("selftests, arm64: add a selftest for passing
>> 		     tagged pointers to kernel")
>> ---
>> v5 --> v6
>> - using realpath to avoid passing down relative paths
>> - fix commit msg & Copyright
>> - removed unneded Makefile export
>> - added SUBTARGETS specification, to allow building specific only some
>>   arm64 test subsystems
>> v4 --> v5
>> - rebased on arm64/for-next/core
>> - merged this patch with KSFT arm64 tags patch, while moving the latter
>>   into its own subdir
>> - moved kernel header includes search mechanism from KSFT arm64
>>   SIGNAL Makefile
>> - export proper top_srcdir ENV for lib.mk
>> v3 --> v4
>> - comment reword
>> - simplified documentation in README
>> - dropped README about standalone
>> ---
>>  tools/testing/selftests/Makefile              |  1 +
>>  tools/testing/selftests/arm64/Makefile        | 63 +++++++++++++++++--
>>  tools/testing/selftests/arm64/README          | 25 ++++++++
>>  tools/testing/selftests/arm64/tags/Makefile   |  6 ++
>>  .../arm64/{ => tags}/run_tags_test.sh         |  0
>>  .../selftests/arm64/{ => tags}/tags_test.c    |  0
>>  6 files changed, 91 insertions(+), 4 deletions(-)
>>  create mode 100644 tools/testing/selftests/arm64/README
>>  create mode 100644 tools/testing/selftests/arm64/tags/Makefile
>>  rename tools/testing/selftests/arm64/{ => tags}/run_tags_test.sh (100%)
>>  rename tools/testing/selftests/arm64/{ => tags}/tags_test.c (100%)
>>
>> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
>> index 25b43a8c2b15..1722dae9381a 100644
>> --- a/tools/testing/selftests/Makefile
>> +++ b/tools/testing/selftests/Makefile
>> @@ -1,5 +1,6 @@
>>  # SPDX-License-Identifier: GPL-2.0
>>  TARGETS = android
>> +TARGETS += arm64
>>  TARGETS += bpf
>>  TARGETS += breakpoints
>>  TARGETS += capabilities
>> diff --git a/tools/testing/selftests/arm64/Makefile b/tools/testing/selftests/arm64/Makefile
>> index a61b2e743e99..cbb2a5a9e3fc 100644
>> --- a/tools/testing/selftests/arm64/Makefile
>> +++ b/tools/testing/selftests/arm64/Makefile
>> @@ -1,11 +1,66 @@
>>  # SPDX-License-Identifier: GPL-2.0
>>  
>> -# ARCH can be overridden by the user for cross compiling
>> +# When ARCH not overridden for crosscompiling, lookup machine
>>  ARCH ?= $(shell uname -m 2>/dev/null || echo not)
>>  
>>  ifneq (,$(filter $(ARCH),aarch64 arm64))
>> -TEST_GEN_PROGS := tags_test
>> -TEST_PROGS := run_tags_test.sh
>> +SUBTARGETS ?= tags
>> +else
>> +SUBTARGETS :=
>>  endif
>>  
>> -include ../lib.mk
>> +CFLAGS := -Wall -O2 -g
>> +
>> +# A proper top_srcdir is needed by KSFT(lib.mk)
>> +top_srcdir = $(realpath ../../../../)
>> +
>> +# Additional include paths needed by kselftest.h and local headers
>> +CFLAGS += -I$(top_srcdir)/tools/testing/selftests/
>> +
>> +# Guessing where the Kernel headers could have been installed
>> +# depending on ENV config
>> +ifeq ($(KBUILD_OUTPUT),)
>> +khdr_dir = $(top_srcdir)/usr/include
>> +else
>> +# the KSFT preferred location when KBUILD_OUTPUT is set
>> +khdr_dir = $(KBUILD_OUTPUT)/kselftest/usr/include
>> +endif
>> +
>> +CFLAGS += -I$(khdr_dir)
>> +
>> +export CFLAGS
>> +export top_srcdir
>> +
>> +all:
>> +	@for DIR in $(SUBTARGETS); do				\
>> +		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
>> +		mkdir -p $$BUILD_TARGET;			\
>> +		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
>> +	done
>> +
>> +install: all
>> +	@for DIR in $(SUBTARGETS); do				\
>> +		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
>> +		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
>> +	done
>> +
>> +run_tests: all
>> +	@for DIR in $(SUBTARGETS); do				\
>> +		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
>> +		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
>> +	done
>> +
>> +# Avoid any output on non arm64 on emit_tests
>> +emit_tests: all
>> +	@for DIR in $(SUBTARGETS); do				\
>> +		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
>> +		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
>> +	done
>> +
>> +clean:
>> +	@for DIR in $(SUBTARGETS); do				\
>> +		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
>> +		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
>> +	done
>> +
>> +.PHONY: all clean install run_tests emit_tests
>> diff --git a/tools/testing/selftests/arm64/README b/tools/testing/selftests/arm64/README
>> new file mode 100644
>> index 000000000000..cc1e51796fee
>> --- /dev/null
>> +++ b/tools/testing/selftests/arm64/README
>> @@ -0,0 +1,25 @@
>> +KSelfTest ARM64
>> +===============
>> +
>> +- These tests are arm64 specific and so not built or run but just skipped
>> +  completely when env-variable ARCH is found to be different than 'arm64'
>> +  and `uname -m` reports other than 'aarch64'.
>> +
>> +- Holding true the above, ARM64 KSFT tests can be run within the KSelfTest
>> +  framework using standard Linux top-level-makefile targets:
>> +
>> +      $ make TARGETS=arm64 kselftest-clean
>> +      $ make TARGETS=arm64 kselftest
>> +
>> +      or
>> +
>> +      $ make -C tools/testing/selftests TARGETS=arm64 \
>> +		INSTALL_PATH=<your-installation-path> install
>> +
>> +      or, alternatively, only specific arm64/ subtargets can be picked:
>> +
>> +      $ make -C tools/testing/selftests TARGETS=arm64 SUBTARGETS="tags signal" \
>> +		INSTALL_PATH=<your-installation-path> install
>> +
>> +   Further details on building and running KFST can be found in:
>> +     Documentation/dev-tools/kselftest.rst
>> diff --git a/tools/testing/selftests/arm64/tags/Makefile b/tools/testing/selftests/arm64/tags/Makefile
>> new file mode 100644
>> index 000000000000..dcc8b0467b68
>> --- /dev/null
>> +++ b/tools/testing/selftests/arm64/tags/Makefile
>> @@ -0,0 +1,6 @@
>> +# SPDX-License-Identifier: GPL-2.0
>> +
>> +TEST_GEN_PROGS := tags_test
> 
> This should be TEST_GEN_FILES, since its used by run_tags_test.sh.
> If its TEST_GEN_PROGS it will be added to the script run_kselftest.sh,
> and I don't think thats the intent, even though it looked like that
> before.
> 

In fact I saw the tags tests running twice (via ./tags_test and via ./run_tags_test.sh) when called
via run_kselftest.sh....but since it was already like that in the original patch so I did not want to
fix it in the context of this series (where tags tests are simply relocated into their own directory)

I could add a separate fix on top of this series if it could make sense.

Cheers

Cristian


> Cheers,
> Anders
> 


  reply index

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-10 12:31 [PATCH v6 00/11] Add arm64/signal initial kselftest support Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 01/11] kselftest: arm64: extend toplevel skeleton Makefile Cristian Marussi
2019-09-17 13:42   ` Anders Roxell
2019-09-17 15:17     ` Cristian Marussi [this message]
2019-09-17 15:29       ` shuah
2019-09-17 15:58         ` Cristian Marussi
2019-09-17 16:16           ` shuah
2019-09-17 16:05   ` Dave Martin
2019-09-17 16:18     ` shuah
2019-09-18 10:17       ` Dave Martin
2019-09-18 10:59       ` Cristian Marussi
2019-10-07 18:22     ` Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 02/11] kselftest: arm64: mangle_pstate_invalid_compat_toggle and common utils Cristian Marussi
2019-09-17 16:05   ` Dave Martin
2019-09-26 11:00     ` Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 03/11] kselftest: arm64: mangle_pstate_invalid_daif_bits Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 04/11] kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht] Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 05/11] kselftest: arm64: mangle_pstate_ssbs_regs Cristian Marussi
2019-09-17 16:05   ` Dave Martin
2019-10-07 18:23     ` Cristian Marussi
2019-10-08 15:07       ` Dave Martin
2019-09-10 12:31 ` [PATCH v6 06/11] kselftest: arm64: fake_sigreturn_bad_magic Cristian Marussi
2019-09-17 16:06   ` Dave Martin
2019-10-07 18:23     ` Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 07/11] kselftest: arm64: fake_sigreturn_bad_size_for_magic0 Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 08/11] kselftest: arm64: fake_sigreturn_missing_fpsimd Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 09/11] kselftest: arm64: fake_sigreturn_duplicated_fpsimd Cristian Marussi
2019-09-17 16:06   ` Dave Martin
2019-09-10 12:31 ` [PATCH v6 10/11] kselftest: arm64: fake_sigreturn_bad_size Cristian Marussi
2019-09-10 12:31 ` [PATCH v6 11/11] kselftest: arm64: fake_sigreturn_misaligned_sp Cristian Marussi

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