[PATCH] selftests/powerpc: Fix emit_tests to work with run_kselftest.sh

[PATCH] selftests/powerpc: Fix emit_tests to work with run_kselftest.sh

[Michael Ellerman]

In order to use run_kselftest.sh the list of tests must be emitted to
populate kselftest-list.txt.

The powerpc Makefile is written to use EMIT_TESTS. But support for
EMIT_TESTS was dropped in commit d4e59a536f50 ("selftests: Use runner.sh
for emit targets"). Although prior to that commit a548de0fe8e1
("selftests: lib.mk: add test execute bit check to EMIT_TESTS") had
already broken run_kselftest.sh for powerpc due to the executable check
using the wrong path.

It can be fixed by replacing the EMIT_TESTS definitions with actual
emit_tests rules in the powerpc Makefiles. This makes run_kselftest.sh
able to run powerpc tests:

  $ cd linux
  $ export ARCH=powerpc
  $ export CROSS_COMPILE=powerpc64le-linux-gnu-
  $ make headers
  $ make -j -C tools/testing/selftests install
  $ grep -c "^powerpc" tools/testing/selftests/kselftest_install/kselftest-list.txt
  182

Fixes: d4e59a536f50 ("selftests: Use runner.sh for emit targets")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 tools/testing/selftests/powerpc/Makefile     |  7 +++----
 tools/testing/selftests/powerpc/pmu/Makefile | 11 ++++++-----
 2 files changed, 9 insertions(+), 9 deletions(-)

I'll plan to merge this via the powerpc tree.

cheers

diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile
index 49f2ad1793fd..7ea42fa02eab 100644
--- a/tools/testing/selftests/powerpc/Makefile
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -59,12 +59,11 @@ override define INSTALL_RULE
 	done;
 endef
 
-override define EMIT_TESTS
+emit_tests:
 	+@for TARGET in $(SUB_DIRS); do \
 		BUILD_TARGET=$(OUTPUT)/$$TARGET;	\
-		$(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests;\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET $@;\
 	done;
-endef
 
 override define CLEAN
 	+@for TARGET in $(SUB_DIRS); do \
@@ -77,4 +76,4 @@ endef
 tags:
 	find . -name '*.c' -o -name '*.h' | xargs ctags
 
-.PHONY: tags $(SUB_DIRS)
+.PHONY: tags $(SUB_DIRS) emit_tests
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index 2b95e44d20ff..a284fa874a9f 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -30,13 +30,14 @@ override define RUN_TESTS
 	+TARGET=event_code_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests
 endef
 
-DEFAULT_EMIT_TESTS := $(EMIT_TESTS)
-override define EMIT_TESTS
-	$(DEFAULT_EMIT_TESTS)
+emit_tests:
+	for TEST in $(TEST_GEN_PROGS); do \
+		BASENAME_TEST=`basename $$TEST`;	\
+		echo "$(COLLECTION):$$BASENAME_TEST";	\
+	done
 	+TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
 	+TARGET=sampling_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
 	+TARGET=event_code_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
-endef
 
 DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
 override define INSTALL_RULE
@@ -64,4 +65,4 @@ sampling_tests:
 event_code_tests:
 	TARGET=$@; BUILD_TARGET=$$OUTPUT/$$TARGET; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $$TARGET all
 
-.PHONY: all run_tests ebb sampling_tests event_code_tests
+.PHONY: all run_tests ebb sampling_tests event_code_tests emit_tests
-- 
2.41.0

Re: [PATCH] selftests/powerpc: Fix emit_tests to work with run_kselftest.sh

[Kees Cook]

On Thu, Sep 21, 2023 at 05:26:10PM +1000, Michael Ellerman wrote:
> In order to use run_kselftest.sh the list of tests must be emitted to
> populate kselftest-list.txt.
> 
> The powerpc Makefile is written to use EMIT_TESTS. But support for
> EMIT_TESTS was dropped in commit d4e59a536f50 ("selftests: Use runner.sh
> for emit targets"). Although prior to that commit a548de0fe8e1
> ("selftests: lib.mk: add test execute bit check to EMIT_TESTS") had
> already broken run_kselftest.sh for powerpc due to the executable check
> using the wrong path.
> 
> It can be fixed by replacing the EMIT_TESTS definitions with actual
> emit_tests rules in the powerpc Makefiles. This makes run_kselftest.sh
> able to run powerpc tests:
> 
>   $ cd linux
>   $ export ARCH=powerpc
>   $ export CROSS_COMPILE=powerpc64le-linux-gnu-
>   $ make headers
>   $ make -j -C tools/testing/selftests install
>   $ grep -c "^powerpc" tools/testing/selftests/kselftest_install/kselftest-list.txt
>   182
> 
> Fixes: d4e59a536f50 ("selftests: Use runner.sh for emit targets")
> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

Reviewed-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook

Re: [PATCH] selftests/powerpc: Fix emit_tests to work with run_kselftest.sh

[Michael Ellerman]

On Thu, 21 Sep 2023 17:26:10 +1000, Michael Ellerman wrote:
> In order to use run_kselftest.sh the list of tests must be emitted to
> populate kselftest-list.txt.
> 
> The powerpc Makefile is written to use EMIT_TESTS. But support for
> EMIT_TESTS was dropped in commit d4e59a536f50 ("selftests: Use runner.sh
> for emit targets"). Although prior to that commit a548de0fe8e1
> ("selftests: lib.mk: add test execute bit check to EMIT_TESTS") had
> already broken run_kselftest.sh for powerpc due to the executable check
> using the wrong path.
> 
> [...]

Applied to powerpc/fixes.

[1/1] selftests/powerpc: Fix emit_tests to work with run_kselftest.sh
      https://git.kernel.org/powerpc/c/58b33e78a31782ffe25d404d5eba9a45fe636e27

cheers