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

MODEL ?= Top
PROJECT := rocketchip
CXX ?= g++
CXXFLAGS := -O1

CHISEL_VERSION ?= 3
export CHISEL_VERSION

SBT ?= java -Xmx2G -Xss8M -XX:MaxPermSize=256M -jar $(base_dir)/sbt-launch.jar
SHELL := /bin/bash

FIRRTL_JAR ?= $(base_dir)/firrtl/utils/bin/firrtl.jar
FIRRTL ?= java -Xmx2G -Xss8M -XX:MaxPermSize=256M -cp $(FIRRTL_JAR) firrtl.Driver

$(FIRRTL_JAR):
	$(MAKE) -C $(base_dir)/firrtl SBT="$(SBT)" root_dir=$(base_dir)/firrtl build-scala

ifeq ($(CHISEL_VERSION),2)
CHISEL_ARGS := $(PROJECT) $(MODEL) $(CONFIG) --W0W --minimumCompatibility 3.0.0 --backend $(BACKEND) --configName $(CONFIG) --compileInitializationUnoptimized --targetDir $(generated_dir)
else
CHISEL_ARGS := --W0W --minimumCompatibility 3.0.0 --backend $(BACKEND) --configName $(CONFIG) --compileInitializationUnoptimized --targetDir $(generated_dir)
endif

src_path = src/main/scala
default_submodules = . junctions uncore hardfloat rocket groundtest context-dependent-environments
chisel_srcs = $(foreach submodule,$(default_submodules) $(ROCKETCHIP_ADDONS),$(wildcard $(base_dir)/$(submodule)/$(src_path)/*.scala))
chisel_srcs += $(foreach submodule,$(default_submodules) $(ROCKETCHIP_ADDONS),$(wildcard $(base_dir)/$(submodule)/$(src_path)/*/*.scala))

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

timeout_cycles = 100000000

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

#---------------------------------------------------------------------
# Constants Header Files
#---------------------------------------------------------------------

params_file = $(generated_dir)/$(MODEL).$(CONFIG).prm
consts_header = $(generated_dir)/consts.$(CONFIG).h
$(consts_header): $(params_file)
	echo "#ifndef __CONST_H__" > $@
	echo "#define __CONST_H__" >> $@
	sed -r 's/\(([A-Za-z0-9_]+),([A-Za-z0-9_]+)\)/#define \1 \2/' $< >> $@
	echo "#define TBFRAG \"$(MODEL).$(CONFIG).tb.cpp\"" >> $@
	echo "#endif // __CONST_H__" >> $@

params_file_debug = $(generated_dir_debug)/$(MODEL).$(CONFIG).prm
consts_header_debug = $(generated_dir_debug)/consts.$(CONFIG).h
$(consts_header_debug): $(params_file_debug)
	echo "#ifndef __CONST_H__" > $@
	echo "#define __CONST_H__" >> $@
	sed -r 's/\(([A-Za-z0-9_]+),([A-Za-z0-9_]+)\)/#define \1 \2/' $< >> $@
	echo "#define TBFRAG \"$(MODEL).$(CONFIG).tb.cpp\"" >> $@
	echo "#endif // __CONST_H__" >> $@