Hi Cristian,
On 9/2/19 4:59 PM, Cristian Marussi wrote:
Add a new arm64-specific empty subsystem amongst TARGETS of KSFT build framework; keep these new arm64 KSFT testcases separated into distinct subdirs inside tools/testing/selftests/arm64/ depending on the specific subsystem targeted.
Add into toplevel arm64 KSFT Makefile a mechanism to guess the effective location of Kernel headers as installed by KSFT framework.
Merge with
commit 9ce1263033cd ("selftests, arm64: add a selftest for passing tagged pointers to kernel")
while moving such KSFT tags tests inside their own subdirectory (arm64/tags).
Signed-off-by: Cristian Marussi cristian.marussi@arm.com
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
This approach breaks the compilation of individual test cases which need to export includes individually.
make -C tools/testing/selftests/arm64/signal
../../lib.mk:25: ../../../../scripts/subarch.include: No such file or directory Makefile:25: warning: overriding recipe for target 'clean' ../../lib.mk:123: warning: ignoring old recipe for target 'clean' make: *** No rule to make target '../../../../scripts/subarch.include'. Stop.
However tags test works well, make -C tools/testing/selftests/arm64/tags
aarch64-none-linux-gnu-gcc tags_test.c -o /home/amikac01/work/MTE_WORK/linux-server/linux/tools/testing/selftests/arm64/tags/tags_test
Thanks, Amit Daniel
- 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 | 70 +++++++++++++++++-- tools/testing/selftests/arm64/README | 20 ++++++ tools/testing/selftests/arm64/tags/Makefile | 10 +++ .../arm64/{ => tags}/run_tags_test.sh | 0 .../selftests/arm64/{ => tags}/tags_test.c | 0 6 files changed, 95 insertions(+), 6 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..5dbb0ffdfc9a 100644 --- a/tools/testing/selftests/arm64/Makefile +++ b/tools/testing/selftests/arm64/Makefile @@ -1,11 +1,69 @@ # SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2019 ARM Limited
-# ARCH can be overridden by the user for cross compiling -ARCH ?= $(shell uname -m 2>/dev/null || echo not) +# When ARCH not overridden for crosscompiling, lookup machine +ARCH ?= $(shell uname -m) +ARCH := $(shell echo $(ARCH) | sed -e s/aarch64/arm64/)
-ifneq (,$(filter $(ARCH),aarch64 arm64)) -TEST_GEN_PROGS := tags_test -TEST_PROGS := run_tags_test.sh +ifeq ("x$(ARCH)", "xarm64") +SUBDIRS := tags +else +SUBDIRS := endif
-include ../lib.mk +CFLAGS := -Wall -O2 -g
+# A proper top_srcdir is needed by KSFT(lib.mk) +top_srcdir = ../../../../..
+# 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 CC +export CFLAGS +export top_srcdir
+all:
@for DIR in $(SUBDIRS); do \BUILD_TARGET=$(OUTPUT)/$$DIR; \mkdir -p $$BUILD_TARGET; \make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \done+install: all
@for DIR in $(SUBDIRS); do \BUILD_TARGET=$(OUTPUT)/$$DIR; \make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \done+run_tests: all
@for DIR in $(SUBDIRS); do \BUILD_TARGET=$(OUTPUT)/$$DIR; \make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \done+# Avoid any output on non arm64 on emit_tests +emit_tests: all
@for DIR in $(SUBDIRS); do \BUILD_TARGET=$(OUTPUT)/$$DIR; \make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \done+clean:
@for DIR in $(SUBDIRS); do \BUILD_TARGET=$(OUTPUT)/$$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..aca892e62a6c --- /dev/null +++ b/tools/testing/selftests/arm64/README @@ -0,0 +1,20 @@ +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> 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..76205533135b --- /dev/null +++ b/tools/testing/selftests/arm64/tags/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0 +# ARCH can be overridden by the user for cross compiling +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 +endif
+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
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