| Message ID | 20190910123111.33478-2-cristian.marussi@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add arm64/signal initial kselftest support | expand |
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. Cheers, Anders
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 >
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 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. > 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. thanks, -- Shuah
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 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. >> > > 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/0999c80cd639b78ae27c0674069d552833227564.1561386715.git.andreyknvl@google.com/ 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 >
On Tue, Sep 10, 2019 at 01:31:01pm +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") > --- > 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 = $(KBUILD_OUTPUT)/kselftest/usr/include > +endif I still tend to think that for now we should just do what all the other tests do. Most tests use CFLAGS += -I../../../../usr/include/ in their Makefiles. For us, the test Makefiles are nested one level deeper, so I guess we would put CFLAGS += -I../../../../../usr/include/ in each. This will break in some cases, but only in the same cases where kselftest is already broken. Ideally we would fix this globally, but can that instead be done independently of this series? Fixing only arm64, by pasting some arbitrary logic from selftests/Makefile doesn't seem like a future-proof approach. Or did I miss something? > + > +CFLAGS += -I$(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 This comment can be dropped: the whole file does nothing for non-arm64, and it achieves it in the same way as other arch-specific Makefiles, so it's odd to have the comment here specifically (?) With or without the above changes, I'm happy to give Reviewed-by: Dave Martin <Dave.Martin@arm.com> (but Shuah or someone will need to give a view on how this integrates with kselftest overall). [...] Cheers ---Dave
On 9/17/19 9:58 AM, Cristian Marussi wrote: > 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 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. >>> >> >> 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/0999c80cd639b78ae27c0674069d552833227564.1561386715.git.andreyknvl@google.com/ > > 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. > Thanks. Yeah if it is already in a tree then, let's fix it in a separate patch and add Fixes tag to make it easier to track them. thanks, -- Shuah
On 9/17/19 10:05 AM, Dave Martin wrote: > On Tue, Sep 10, 2019 at 01:31:01pm +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") >> --- >> 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 = $(KBUILD_OUTPUT)/kselftest/usr/include >> +endif > > I still tend to think that for now we should just do what all the other > tests do. > > Most tests use > > CFLAGS += -I../../../../usr/include/ > > in their Makefiles. > > For us, the test Makefiles are nested one level deeper, so I guess > we would put > > CFLAGS += -I../../../../../usr/include/ > > in each. > > > This will break in some cases, but only in the same cases where > kselftest is already broken. > > Ideally we would fix this globally, but can that instead be done > independently of this series? > > Fixing only arm64, by pasting some arbitrary logic from > selftests/Makefile doesn't seem like a future-proof approach. > > > Or did I miss something? > >> + >> +CFLAGS += -I$(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 > > This comment can be dropped: the whole file does nothing for > non-arm64, and it achieves it in the same way as other arch-specific > Makefiles, so it's odd to have the comment here specifically (?) > > > With or without the above changes, I'm happy to give > > Reviewed-by: Dave Martin <Dave.Martin@arm.com> > > (but Shuah or someone will need to give a view on how this integrates > with kselftest overall). > I am reviewing the series this week. I will provide comments in a day or two. thanks, -- Shuah
On Tue, Sep 17, 2019 at 10:18:55AM -0600, shuah wrote: > On 9/17/19 10:05 AM, Dave Martin wrote: > >On Tue, Sep 10, 2019 at 01:31:01pm +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") > >>--- > >>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 = $(KBUILD_OUTPUT)/kselftest/usr/include > >>+endif > > > >I still tend to think that for now we should just do what all the other > >tests do. > > > >Most tests use > > > > CFLAGS += -I../../../../usr/include/ > > > >in their Makefiles. > > > >For us, the test Makefiles are nested one level deeper, so I guess > >we would put > > > > CFLAGS += -I../../../../../usr/include/ > > > >in each. > > > > > >This will break in some cases, but only in the same cases where > >kselftest is already broken. > > > >Ideally we would fix this globally, but can that instead be done > >independently of this series? > > > >Fixing only arm64, by pasting some arbitrary logic from > >selftests/Makefile doesn't seem like a future-proof approach. > > > > > >Or did I miss something? > > > >>+ > >>+CFLAGS += -I$(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 > > > >This comment can be dropped: the whole file does nothing for > >non-arm64, and it achieves it in the same way as other arch-specific > >Makefiles, so it's odd to have the comment here specifically (?) > > > > > >With or without the above changes, I'm happy to give > > > >Reviewed-by: Dave Martin <Dave.Martin@arm.com> > > > >(but Shuah or someone will need to give a view on how this integrates > >with kselftest overall). > > > > I am reviewing the series this week. I will provide comments in a > day or two. > > thanks, > -- Shuah Thanks! From the arm64 side, I'd say we're just down to minor issues at this point. Cheers ---Dave
On 17/09/2019 17:18, shuah wrote: > On 9/17/19 10:05 AM, Dave Martin wrote: >> On Tue, Sep 10, 2019 at 01:31:01pm +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") >>> --- >>> 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 = $(KBUILD_OUTPUT)/kselftest/usr/include >>> +endif >> >> I still tend to think that for now we should just do what all the other >> tests do. >> >> Most tests use >> >> CFLAGS += -I../../../../usr/include/ >> >> in their Makefiles. >> >> For us, the test Makefiles are nested one level deeper, so I guess >> we would put >> >> CFLAGS += -I../../../../../usr/include/ >> >> in each. >> >> >> This will break in some cases, but only in the same cases where >> kselftest is already broken. >> >> Ideally we would fix this globally, but can that instead be done >> independently of this series? >> >> Fixing only arm64, by pasting some arbitrary logic from >> selftests/Makefile doesn't seem like a future-proof approach. >> >> >> Or did I miss something? >> >>> + >>> +CFLAGS += -I$(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 >> >> This comment can be dropped: the whole file does nothing for >> non-arm64, and it achieves it in the same way as other arch-specific >> Makefiles, so it's odd to have the comment here specifically (?) >> >> >> With or without the above changes, I'm happy to give >> >> Reviewed-by: Dave Martin <Dave.Martin@arm.com> >> >> (but Shuah or someone will need to give a view on how this integrates >> with kselftest overall). >> > > I am reviewing the series this week. I will provide comments in a > day or two. > Thanks Shuah. As a side question... should I rebase next v7 (after your feedback) on latest kselftest branch (linux-kselftest-5.4-rc1 or whatever) Cristian > thanks, > -- Shuah >
Hi On 17/09/2019 17:05, Dave Martin wrote: > On Tue, Sep 10, 2019 at 01:31:01pm +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") >> --- >> 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 = $(KBUILD_OUTPUT)/kselftest/usr/include >> +endif > > I still tend to think that for now we should just do what all the other > tests do. > > Most tests use > > CFLAGS += -I../../../../usr/include/ > > in their Makefiles. > > For us, the test Makefiles are nested one level deeper, so I guess > we would put > > CFLAGS += -I../../../../../usr/include/ > > in each. > > > This will break in some cases, but only in the same cases where > kselftest is already broken. > > Ideally we would fix this globally, but can that instead be done > independently of this series? > > Fixing only arm64, by pasting some arbitrary logic from > selftests/Makefile doesn't seem like a future-proof approach. > > > Or did I miss something? > I've left this bit as it is in v7 (fixing some other minor stuff) as we discussed, since I'm still waiting for some Shuah's comments. >> + >> +CFLAGS += -I$(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 > > This comment can be dropped: the whole file does nothing for > non-arm64, and it achieves it in the same way as other arch-specific > Makefiles, so it's odd to have the comment here specifically (?) > > Ok I'll fix in v7 > With or without the above changes, I'm happy to give > > Reviewed-by: Dave Martin <Dave.Martin@arm.com> > > (but Shuah or someone will need to give a view on how this integrates > with kselftest overall). > I'll wait for Shuah's comments as said. Thanks Cristian > [...] > > Cheers > ---Dave >
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 +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
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%)