On 17/09/2019 16:29, shuah wrote:
On 9/17/19 9:17 AM, Cristian Marussi wrote:
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 kselftestor$ make -C tools/testing/selftests TARGETS=arm64 \INSTALL_PATH=<your-installation-path> installor, 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.rstdiff --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.
We are still in review phase I would think. It would make sense to fix the original patch and not as a separate fix patch.
The original code for:
+++ b/tools/testing/selftests/arm64/tags/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := tags_test
has not been introduced in this series (under review), and that's merged already I think:
https://lore.kernel.org/linux-kselftest/0999c80cd639b78ae27c0674069d55283322...
This patch only moves the original tags tests (introduced with the above commit) from arm64/ into their own arm64/tags/ directory and integrate with the new arm64/signal tests by this series.
Here I have just moved down the original code including the bug, that's why I'm saying I could push a fix on top of this series.
I thought I had to keep the two series distinct give that I'm integrating someone else commit (and eventually fix later): but if not I can alternatively fix the above tags tests issue in the next v7 02/11 within this series.
Cheers
Cristian
thanks, -- Shuah