linux-kernel - [PATCH v2 3/3] tools: parallel selftests building & running

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Date:	Tue, 23 Sep 2014 12:55:20 -0700
From:	Peter Feiner <pfeiner@...gle.com>
To:	Shuah Khan <shuahkh@....samsung.com>
Cc:	linux-api@...r.kernel.org, linux-kernel@...r.kernel.org,
	David Herrmann <dh.herrmann@...il.com>,
	Greg Thelen <gthelen@...gle.com>,
	Hugh Dickens <hughd@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Feiner <pfeiner@...gle.com>
Subject: [PATCH v2 3/3] tools: parallel selftests building & running

Now make -jN builds and runs selftests in parallel. Also, if one
selftest fails to build or run, make will return an error, whereas
before the error was ignored.

Signed-off-by: Peter Feiner <pfeiner@...gle.com>

---

v1 -> v2:
	Moved fix for missing 'make clean' target into separate
	patch.
---
 tools/testing/selftests/Makefile | 49 ++++++++++++++++------------------------
 1 file changed, 20 insertions(+), 29 deletions(-)

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 36ff2e4..8c33716 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -18,32 +18,23 @@ TARGETS += firmware
 TARGETS_HOTPLUG = cpu-hotplug
 TARGETS_HOTPLUG += memory-hotplug
 
-all:
-	for TARGET in $(TARGETS); do \
-		make -C $$TARGET; \
-	done;
-
-run_tests: all
-	for TARGET in $(TARGETS); do \
-		make -C $$TARGET run_tests; \
-	done;
-
-hotplug:
-	for TARGET in $(TARGETS_HOTPLUG); do \
-		make -C $$TARGET; \
-	done;
-
-run_hotplug: hotplug
-	for TARGET in $(TARGETS_HOTPLUG); do \
-		make -C $$TARGET run_full_test; \
-	done;
-
-clean_hotplug:
-	for TARGET in $(TARGETS_HOTPLUG); do \
-		make -C $$TARGET clean; \
-	done;
-
-clean:
-	for TARGET in $(TARGETS); do \
-		make -C $$TARGET clean; \
-	done;
+BUILD_TARGETS=$(TARGETS:%=build-%) $(TARGETS_HOTPLUG:%=build-%)
+TEST_TARGETS=$(TARGETS:%=test-%)
+CLEAN_TARGETS=$(TARGETS:%=clean-%) $(TARGETS_HOTPLUG:%=clean-%)
+
+all: $(BUILD_TARGETS)
+
+run_hotplug: test-cpu-hotplug test-memory-hotplug
+
+run_tests: $(TEST_TARGETS)
+
+clean: $(CLEAN_TARGETS)
+
+build-%:
+	$(MAKE) -C $(@:build-%=%)
+
+test-%: build-%
+	$(MAKE) -C $(@:test-%=%) run_tests
+
+clean-%:
+	$(MAKE) -C $(@:clean-%=%) clean
-- 
2.1.0.rc2.206.gedb03e5

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