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Subject[PATCH v2 1/3] selftests: Extract run_kselftest.sh and generate stand-alone test list
Date
Instead of building a script on the fly (which just repeats the same
thing for each test collection), move the script out of the Makefile and
into run_kselftest.sh, which reads kselftest-list.txt.

Adjust the emit_tests target to report each test on a separate line so
that test running tools (e.g. LAVA) can easily remove individual
tests (for example, as seen in [1]).

[1] https://github.com/Linaro/test-definitions/pull/208/commits/2e7b62155e4998e54ac0587704932484d4ff84c8

Signed-off-by: Kees Cook <keescook@chromium.org>
---
tools/testing/selftests/Makefile | 26 ++++++----------------
tools/testing/selftests/lib.mk | 5 ++---
tools/testing/selftests/run_kselftest.sh | 28 ++++++++++++++++++++++++
3 files changed, 37 insertions(+), 22 deletions(-)
create mode 100755 tools/testing/selftests/run_kselftest.sh

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 15c1c1359c50..d9c283503159 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -206,6 +206,7 @@ KSFT_INSTALL_PATH := $(abspath $(KSFT_INSTALL_PATH))
# Avoid changing the rest of the logic here and lib.mk.
INSTALL_PATH := $(KSFT_INSTALL_PATH)
ALL_SCRIPT := $(INSTALL_PATH)/run_kselftest.sh
+TEST_LIST := $(INSTALL_PATH)/kselftest-list.txt

install: all
ifdef INSTALL_PATH
@@ -214,6 +215,8 @@ ifdef INSTALL_PATH
install -m 744 kselftest/module.sh $(INSTALL_PATH)/kselftest/
install -m 744 kselftest/runner.sh $(INSTALL_PATH)/kselftest/
install -m 744 kselftest/prefix.pl $(INSTALL_PATH)/kselftest/
+ install -m 744 run_kselftest.sh $(INSTALL_PATH)/
+ rm -f $(TEST_LIST)
@ret=1; \
for TARGET in $(TARGETS); do \
BUILD_TARGET=$$BUILD/$$TARGET; \
@@ -222,33 +225,18 @@ ifdef INSTALL_PATH
ret=$$((ret * $$?)); \
done; exit $$ret;

- @# Ask all targets to emit their test scripts
- echo "#!/bin/sh" > $(ALL_SCRIPT)
- echo "BASE_DIR=\$$(realpath \$$(dirname \$$0))" >> $(ALL_SCRIPT)
- echo "cd \$$BASE_DIR" >> $(ALL_SCRIPT)
- echo ". ./kselftest/runner.sh" >> $(ALL_SCRIPT)
- echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)
- echo "if [ \"\$$1\" = \"--summary\" ]; then" >> $(ALL_SCRIPT)
- echo " logfile=\$$BASE_DIR/output.log" >> $(ALL_SCRIPT)
- echo " cat /dev/null > \$$logfile" >> $(ALL_SCRIPT)
- echo "fi" >> $(ALL_SCRIPT)

- @# While building run_kselftest.sh skip also non-existent TARGET dirs:
+ @# Ask all targets to emit their test scripts
+ @# While building kselftest-list.text skip also non-existent TARGET dirs:
@# they could be the result of a build failure and should NOT be
@# included in the generated runlist.
for TARGET in $(TARGETS); do \
BUILD_TARGET=$$BUILD/$$TARGET; \
[ ! -d $(INSTALL_PATH)/$$TARGET ] && echo "Skipping non-existent dir: $$TARGET" && continue; \
- echo "[ -w /dev/kmsg ] && echo \"kselftest: Running tests in $$TARGET\" >> /dev/kmsg" >> $(ALL_SCRIPT); \
- echo "cd $$TARGET" >> $(ALL_SCRIPT); \
- echo -n "run_many" >> $(ALL_SCRIPT); \
echo -n "Emit Tests for $$TARGET\n"; \
- $(MAKE) -s --no-print-directory OUTPUT=$$BUILD_TARGET -C $$TARGET emit_tests >> $(ALL_SCRIPT); \
- echo "" >> $(ALL_SCRIPT); \
- echo "cd \$$ROOT" >> $(ALL_SCRIPT); \
+ $(MAKE) -s --no-print-directory OUTPUT=$$BUILD_TARGET COLLECTION=$$TARGET \
+ -C $$TARGET emit_tests >> $(TEST_LIST); \
done;
-
- chmod u+x $(ALL_SCRIPT)
else
$(error Error: set INSTALL_PATH to use install)
endif
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 51124b962d56..30848ca36555 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -107,9 +107,8 @@ endif
emit_tests:
for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
BASENAME_TEST=`basename $$TEST`; \
- echo " \\"; \
- echo -n " \"$$BASENAME_TEST\""; \
- done; \
+ echo "$(COLLECTION):$$BASENAME_TEST"; \
+ done

# define if isn't already. It is undefined in make O= case.
ifeq ($(RM),)
diff --git a/tools/testing/selftests/run_kselftest.sh b/tools/testing/selftests/run_kselftest.sh
new file mode 100755
index 000000000000..8b0ad4766d78
--- /dev/null
+++ b/tools/testing/selftests/run_kselftest.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run installed kselftest tests.
+#
+BASE_DIR=$(realpath $(dirname $0))
+cd $BASE_DIR
+TESTS="$BASE_DIR"/kselftest-list.txt
+if [ ! -r "$TESTS" ] ; then
+ echo "$0: Could not find list of tests to run ($TESTS)" >&2
+ exit 1
+fi
+available="$(cat "$TESTS")"
+
+. ./kselftest/runner.sh
+ROOT=$PWD
+
+if [ "$1" = "--summary" ] ; then
+ logfile="$BASE_DIR"/output.log
+ cat /dev/null > $logfile
+fi
+
+collections=$(echo "$available" | cut -d: -f1 | uniq)
+for collection in $collections ; do
+ [ -w /dev/kmsg ] && echo "kselftest: Running tests in $collection" >> /dev/kmsg
+ tests=$(echo "$available" | grep "^$collection:" | cut -d: -f2)
+ (cd "$collection" && run_many $tests)
+done
--
2.25.1
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