selftests: check before install

When the test cases is not supported by the current architecture
the install files(TEST_PROGS, TEST_PROGS_EXTENDED and TEST_FILES)
will be empty. Check it before installation to dismiss a failure
reported by install program.

Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

2 files changed, 8 insertions, 6 deletions

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 9763dd95b4c8..b2179587c8fe 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -72,7 +72,6 @@ ifdef INSTALL_PATH
         @# Ask all targets to install their files
         mkdir -p $(INSTALL_PATH)
         for TARGET in $(TARGETS); do \
-                mkdir -p $(INSTALL_PATH)/$$TARGET ; \
                 make -C $$TARGET INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
         done;
 
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index ee412bab7ed4..97f1c6742066 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -12,11 +12,14 @@ run_tests: all
         $(RUN_TESTS)
 
 define INSTALL_RULE
-        mkdir -p $(INSTALL_PATH)
-        @for TEST_DIR in $(TEST_DIRS); do\
-                cp -r $$TEST_DIR $(INSTALL_PATH); \
-        done;
-        install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)
+        @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then                        \
+                mkdir -p $(INSTALL_PATH);                                                               \
+                for TEST_DIR in $(TEST_DIRS); do                                                        \
+                        cp -r $$TEST_DIR $(INSTALL_PATH);                                               \
+                done;                                                                                   \
+                echo "install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)";   \
+                install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES);          \
+        fi
 endef
 
 install: all