[v8,01/12] kselftest: arm64: extend toplevel skeleton Makefile
diff mbox series

Message ID 20191009082611.9441-2-cristian.marussi@arm.com
State New
Headers show
Series
  • Add arm64/signal initial kselftest support
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Commit Message

Cristian Marussi Oct. 9, 2019, 8:26 a.m. UTC
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")
---
v6 --> v7
- renamed SUBTARGETS to ARM64_SUBTARGETS to avoid name clashes
- rebased on v5.4-rc2 accounting for further new patches on top of commit 9ce1263033cd
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        | 64 +++++++++++++++++--
 tools/testing/selftests/arm64/README          | 25 ++++++++
 tools/testing/selftests/arm64/tags/Makefile   |  7 ++
 .../arm64/{ => tags}/run_tags_test.sh         |  0
 .../selftests/arm64/{ => tags}/tags_test.c    |  0
 6 files changed, 92 insertions(+), 5 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%)

Comments

Dave Martin Oct. 9, 2019, 11:15 a.m. UTC | #1
On Wed, Oct 09, 2019 at 09:26:00AM +0100, 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")
> ---
> v6 --> v7
> - renamed SUBTARGETS to ARM64_SUBTARGETS to avoid name clashes
> - rebased on v5.4-rc2 accounting for further new patches on top of commit 9ce1263033cd
> 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        | 64 +++++++++++++++++--
>  tools/testing/selftests/arm64/README          | 25 ++++++++
>  tools/testing/selftests/arm64/tags/Makefile   |  7 ++
>  .../arm64/{ => tags}/run_tags_test.sh         |  0
>  .../selftests/arm64/{ => tags}/tags_test.c    |  0
>  6 files changed, 92 insertions(+), 5 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%)

Do you need to move the tags_test line in arm64/.gitignore to
arm64/tags/.gitignore?

With that change, FWIW:

Reviewed-by: Dave Martin <Dave.Martin@arm.com>

(i.e., this looks reasonable, but I'm not a kselftest expert...)

[...]

Cheers
---Dave
Cristian Marussi Oct. 9, 2019, 11:52 a.m. UTC | #2
On 09/10/2019 12:15, Dave Martin wrote:
> On Wed, Oct 09, 2019 at 09:26:00AM +0100, 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")
>> ---
>> v6 --> v7
>> - renamed SUBTARGETS to ARM64_SUBTARGETS to avoid name clashes
>> - rebased on v5.4-rc2 accounting for further new patches on top of commit 9ce1263033cd
>> 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        | 64 +++++++++++++++++--
>>  tools/testing/selftests/arm64/README          | 25 ++++++++
>>  tools/testing/selftests/arm64/tags/Makefile   |  7 ++
>>  .../arm64/{ => tags}/run_tags_test.sh         |  0
>>  .../selftests/arm64/{ => tags}/tags_test.c    |  0
>>  6 files changed, 92 insertions(+), 5 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%)
> 
> Do you need to move the tags_test line in arm64/.gitignore to
> arm64/tags/.gitignore?
> 

Damn...I've not spotted that since it works anyway. I'll fix in v9.

Cristian

> With that change, FWIW:
> 
> Reviewed-by: Dave Martin <Dave.Martin@arm.com>
> 
> (i.e., this looks reasonable, but I'm not a kselftest expert...)
> 
> [...]
> 
> Cheers
> ---Dave
>

Patch
diff mbox series

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index c3feccb99ff5..b7c8ad3d0b34 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 f9f79fb272f0..cd27ca689224 100644
--- a/tools/testing/selftests/arm64/Makefile
+++ b/tools/testing/selftests/arm64/Makefile
@@ -1,12 +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))
-CFLAGS += -I../../../../usr/include/
-TEST_GEN_PROGS := tags_test
-TEST_PROGS := run_tags_test.sh
+ARM64_SUBTARGETS ?= tags
+else
+ARM64_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 $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		mkdir -p $$BUILD_TARGET;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+install: all
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+run_tests: all
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+# Avoid any output on non arm64 on emit_tests
+emit_tests: all
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+clean:
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$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..a1badd882102
--- /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 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..41cb75070511
--- /dev/null
+++ b/tools/testing/selftests/arm64/tags/Makefile
@@ -0,0 +1,7 @@ 
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += -I../../../../../usr/include/
+TEST_GEN_PROGS := tags_test
+TEST_PROGS := run_tags_test.sh
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/arm64/run_tags_test.sh b/tools/testing/selftests/arm64/tags/run_tags_test.sh
similarity index 100%
rename from tools/testing/selftests/arm64/run_tags_test.sh
rename to tools/testing/selftests/arm64/tags/run_tags_test.sh
diff --git a/tools/testing/selftests/arm64/tags_test.c b/tools/testing/selftests/arm64/tags/tags_test.c
similarity index 100%
rename from tools/testing/selftests/arm64/tags_test.c
rename to tools/testing/selftests/arm64/tags/tags_test.c