# check RISCV environment variable
ifndef RISCV
$(error Please set environment variable RISCV. Please take a look at README)
endif

MODEL := Top
CXX := g++
CXXFLAGS := -O1

SBT := java -Xmx2048M -Xss8M -XX:MaxPermSize=128M -jar sbt-launch.jar
SHELL := /bin/bash

src_path = src/main/scala
chisel_srcs = $(base_dir)/$(src_path)/*.scala $(base_dir)/rocket/$(src_path)/*.scala $(base_dir)/uncore/$(src_path)/*.scala $(base_dir)/zscale/$(src_path)/*.scala $(SRC_EXTENSION)

disasm := 2>
which_disasm := $(shell which spike-dasm)
ifneq ($(which_disasm),)
	disasm := 3>&1 1>&2 2>&3 | $(which_disasm) $(DISASM_EXTENSION) >
endif

timeout_cycles = 100000000

#--------------------------------------------------------------------
# Verilog Generation
#--------------------------------------------------------------------

$(generated_dir)/$(MODEL).$(CONFIG).v: $(chisel_srcs) $(generated_dir)/memdessertMemDessert.$(CONFIG).v
	cd $(base_dir) && mkdir -p $(generated_dir) && $(SBT) "run $(MODEL) --backend $(BACKEND) --targetDir $(generated_dir) --W0W --configDump --noInlineMem --configInstance rocketchip.$(CONFIG)"
	cd $(generated_dir) && \
	if [ -a $(MODEL).$(CONFIG).conf ]; then \
	  $(mem_gen) $(generated_dir)/$(MODEL).$(CONFIG).conf >> $(generated_dir)/$(MODEL).$(CONFIG).v; \
	fi

$(generated_dir)/consts.$(CONFIG).vh: $(generated_dir)/$(MODEL).$(CONFIG).v
	echo "\`ifndef CONST_VH" > $@
	echo "\`define CONST_VH" >> $@
	sed -r 's/\(([A-Za-z0-9_]+),([A-Za-z0-9_]+)\)/`define \1 \2/' $(patsubst %.v,%.prm,$<) >> $@
	echo "\`endif // CONST_VH" >> $@

$(generated_dir)/memdessertMemDessert.$(CONFIG).v: $(base_dir)/$(src_path)/*.scala $(base_dir)/uncore/$(src_path)/*.scala
	cd $(base_dir) && mkdir -p $(generated_dir) && $(SBT) "run MemDessert --backend v --targetDir $(generated_dir) --W0W --moduleNamePrefix memdessert --configInstance rocketchip.$(CONFIG)"

#--------------------------------------------------------------------
# DRAMSim2
#--------------------------------------------------------------------

DRAMSIM_OBJS := $(patsubst %.cpp,%.o,$(wildcard $(base_dir)/dramsim2/*.cpp))
$(DRAMSIM_OBJS): %.o: %.cpp
	$(CXX) $(CXXFLAGS) -DNO_STORAGE -DNO_OUTPUT -Dmain=nomain -c -o $@ $<
$(sim_dir)/libdramsim.a: $(DRAMSIM_OBJS)
	ar rcs $@ $^

#--------------------------------------------------------------------
# Build Tests
#--------------------------------------------------------------------

%.hex:
	$(MAKE) -C $(dir $@) $(notdir $@)

%.riscv.hex: %
	$(MAKE) -C $(dir $@) $(notdir $@)