# The default target, which runs all regression targets.
regression: vsim-regression fsim-regression emulator-regression

# Regression targets for the various simulators.
%-regression: %-asm-tests %-bmark-tests

ifeq ($(CONFIG),)
$(error Set CONFIG to the rocket-chip configuration to elaborate and test)
endif

ifeq ($(TORTURE_CONFIG),)
$(error Set TORTURE_CONFIG to the torture configuration to run)
endif

# The top-level directory that contains rocket-chip
TOP ?= ..

# The directory that the tools get built into.
RISCV ?= install

# Torture saves the failing tests into a directory, which defaults to just somehing inside the regressions directory.
TORTURE_SAVE_DIR ?= torture-failures

# Removes all the build stamps from the current config
.PHONY: clean
clean:
	rm -rf stamps $(abspath $(RISCV))
	$(MAKE) -C $(abspath $(TOP)/vsim) clean
	$(MAKE) -C $(abspath $(TOP)/fsim) clean
	$(MAKE) -C $(abspath $(TOP)/emulator) clean

# These are the named regression targets.  While it's expected you run them in
# this order, since there's dependencies for everything it doesn't actually
# matter.  They're here to make running the various targets from the
# commandline a bit cleaner.
submodules: stamps/submodules.stamp
tools: stamps/tools.stamp

emulator-debug: stamps/$(CONFIG)/emulator-debug.stamp
emulator-ndebug: stamps/$(CONFIG)/emulator-ndebug.stamp
emulator-asm-tests: stamps/$(CONFIG)/emulator-asm-tests.stamp
emulator-bmark-tests: stamps/$(CONFIG)/emulator-bmark-tests.stamp

vsim-debug: stamps/$(CONFIG)/vsim-debug.stamp
vsim-ndebug: stamps/$(CONFIG)/vsim-ndebug.stamp
vsim-asm-tests: stamps/$(CONFIG)/vsim-asm-tests.stamp
vsim-bmark-tests: stamps/$(CONFIG)/vsim-bmark-tests.stamp

fsim-debug: stamps/$(CONFIG)/fsim-debug.stamp
fsim-ndebug: stamps/$(CONFIG)/fsim-ndebug.stamp
fsim-asm-tests: stamps/$(CONFIG)/fsim-asm-tests.stamp
fsim-bmark-tests: stamps/$(CONFIG)/fsim-bmark-tests.stamp

# Checks out all the rocket-chip submodules
stamps/submodules.stamp:
	mkdir -p $(dir $@)
	git -C $(abspath $(TOP)) submodule update --init --recursive
	touch $@

# Builds the RISC-V toolchain
stamps/tools.stamp: stamps/submodules.stamp
	mkdir -p $(dir $@)
	+cd $(abspath $(TOP))/riscv-tools; RISCV=$(abspath $(RISCV)) ./build.sh
	touch $@

# Builds the various simulators
stamps/$(CONFIG)/%-ndebug.stamp: stamps/submodules.stamp stamps/tools.stamp
	mkdir -p $(dir $@)
	$(MAKE) -C $(abspath $(TOP))/$(patsubst stamps/$(CONFIG)/%-ndebug.stamp,%,$@) CONFIG=$(CONFIG) RISCV=$(abspath $(RISCV))
	touch $@

stamps/$(CONFIG)/%-debug.stamp: stamps/submodules.stamp stamps/tools.stamp
	mkdir -p $(dir $@)
	$(MAKE) -C $(abspath $(TOP))/$(patsubst stamps/$(CONFIG)/%-debug.stamp,%,$@) CONFIG=$(CONFIG) RISCV=$(abspath $(RISCV)) debug
	touch $@

# Runs tests on one of the simulators
stamps/$(CONFIG)/%-asm-tests.stamp: stamps/$(CONFIG)/%-ndebug.stamp stamps/tools.stamp stamps/submodules.stamp
	mkdir -p $(dir $@)
	$(MAKE) -C $(abspath $(TOP))/$(patsubst stamps/$(CONFIG)/%-asm-tests.stamp,%,$@) CONFIG=$(CONFIG) RISCV=$(abspath $(RISCV)) run-asm-tests
	touch $@

stamps/$(CONFIG)/%-bmark-tests.stamp: stamps/$(CONFIG)/%-ndebug.stamp stamps/tools.stamp stamps/submodules.stamp
	mkdir -p $(dir $@)
	$(MAKE) -C $(abspath $(TOP))/$(patsubst stamps/$(CONFIG)/%-bmark-tests.stamp,%,$@) CONFIG=$(CONFIG) RISCV=$(abspath $(RISCV)) run-bmark-tests
	touch $@