Makefile.target: add (clean-/build-)guest-tests targets

Now all the build infrastructure is in place we can build tests for
each guest that we support. That support mainly depends on having
cross compilers installed or docker setup. To keep all the logic for
that together we put the rules in tests/tcg/Makefile.include and
include it from the main Makefile.target.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

3 files changed, 94 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 4c955425b9..6c747ff69e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2160,6 +2160,7 @@ Guest Test Compilation Support
 M: Alex Bennée <alex.bennee@linaro.org>
 R: Philippe Mathieu-Daudé <f4bug@amsat.org>
 F: tests/tcg/Makefile
+F: tests/tcg/Makefile.include
 L: qemu-devel@nongnu.org
 
 Documentation
diff --git a/Makefile.target b/Makefile.target
index dad2cf8778..a9d8928f96 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -36,6 +36,11 @@ endif
 PROGS=$(QEMU_PROG) $(QEMU_PROGW)
 STPFILES=
 
+# Makefile Tests
+ifdef CONFIG_USER_ONLY
+include $(SRC_PATH)/tests/tcg/Makefile.include
+endif
+
 config-target.h: config-target.h-timestamp
 config-target.h-timestamp: config-target.mak
 
diff --git a/tests/tcg/Makefile.include b/tests/tcg/Makefile.include
new file mode 100644
index 0000000000..57470b2a2c
--- /dev/null
+++ b/tests/tcg/Makefile.include
@@ -0,0 +1,88 @@
+# -*- Mode: makefile -*-
+#
+# TCG tests (per-target rules)
+#
+# This Makefile fragement is included from the per-target
+# Makefile.target so will be invoked for each linux-user program we
+# build. We have two options for compiling, either using a configured
+# guest compiler or calling one of our docker images to do it for us.
+#
+
+# The per ARCH makefile, if it exists, holds extra information about
+# useful docker images or alternative compiler flags.
+
+-include $(SRC_PATH)/tests/tcg/$(TARGET_BASE_ARCH)/Makefile.include
+-include $(SRC_PATH)/tests/tcg/$(TARGET_NAME)/Makefile.include
+
+GUEST_BUILD=
+TCG_MAKE=$(SRC_PATH)/tests/tcg/Makefile
+# Support installed Cross Compilers
+
+ifdef CROSS_CC_GUEST
+
+.PHONY: cross-build-guest-tests
+cross-build-guest-tests:
+	$(call quiet-command, \
+	   (mkdir -p tests && cd tests && \
+	    $(MAKE) -f $(TCG_MAKE) CC=$(CROSS_CC_GUEST) \
+			BUILD_STATIC=$(CROSS_CC_GUEST_STATIC) \
+			EXTRA_CFLAGS=$(CROSS_CC_GUEST_CFLAGS)), \
+	"BUILD","$(TARGET_NAME) guest-tests with $(CROSS_CC_GUEST)")
+
+GUEST_BUILD=cross-build-guest-tests
+
+endif
+
+# Support building with Docker
+
+ifeq ($(HAVE_USER_DOCKER)$(GUEST_BUILD),y)
+ifneq ($(DOCKER_IMAGE),)
+
+# We also need the Docker make rules to depend on
+include $(SRC_PATH)/tests/docker/Makefile.include
+
+DOCKER_COMPILE_CMD="$(DOCKER_SCRIPT) cc --user $(shell id -u) \
+		--cc $(DOCKER_CROSS_COMPILER) \
+		-i qemu:$(DOCKER_IMAGE) \
+		-s $(SRC_PATH) -- "
+DOCKER_PREREQ=docker-image-$(DOCKER_IMAGE)
+
+.PHONY: docker-build-guest-tests
+docker-build-guest-tests: $(DOCKER_PREREQ)
+	$(call quiet-command, \
+	  (mkdir -p tests && cd tests && \
+	   $(MAKE) -f $(TCG_MAKE) CC=$(DOCKER_COMPILE_CMD) \
+			BUILD_STATIC=y \
+			EXTRA_CFLAGS=$(DOCKER_CROSS_COMPILER_CFLAGS)), \
+	"BUILD","$(TARGET_NAME) guest-tests with docker qemu:$(DOCKER_IMAGE)")
+
+GUEST_BUILD=docker-build-guest-tests
+
+endif
+endif
+
+# Final targets
+.PHONY: guest-tests
+
+ifneq ($(GUEST_BUILD),)
+guest-tests: $(GUEST_BUILD)
+
+run-guest-tests: guest-tests qemu-$(TARGET_NAME)
+	$(call quiet-command, \
+	(cd tests && $(MAKE) -f $(TCG_MAKE) SPEED=$(SPEED) run), \
+	"RUN", "tests for $(TARGET_NAME)")
+
+else
+guest-tests:
+	$(call quiet-command, /bin/true, "BUILD", \
+		"$(TARGET_NAME) guest-tests SKIPPED")
+
+run-guest-tests:
+	$(call quiet-command, /bin/true, "RUN", \
+		"tests for $(TARGET_NAME) SKIPPED")
+endif
+
+# It doesn't matter if these don't exits
+.PHONY: clean-guest-tests
+clean-guest-tests:
+	rm -rf tests || echo "no $(TARGET_NAME) tests to remove"