XLEN ?= 32

LLVM_PREFIX ?= /opt/llvm-riscv
RISCV_TOOLCHAIN_PATH ?= /opt/riscv-gnu-toolchain
SYSROOT ?= $(RISCV_TOOLCHAIN_PATH)/riscv32-unknown-elf
POCL_CC_PATH ?= /opt/pocl/compiler
POCL_RT_PATH ?= /opt/pocl/runtime

VORTEX_DRV_PATH ?= $(realpath ../../../driver)
VORTEX_RT_PATH ?= $(realpath ../../../runtime)

K_LLCFLAGS += "-O3 -march=riscv32 -target-abi=ilp32f -mcpu=generic-rv32 -mattr=+m,+f -mattr=+vortex -float-abi=hard -code-model=small"
K_CFLAGS   += "-v -O3 --sysroot=$(SYSROOT) --gcc-toolchain=$(RISCV_TOOLCHAIN_PATH) -march=rv32imf -mabi=ilp32f -Xclang -target-feature -Xclang +vortex -I$(VORTEX_RT_PATH)/include -fno-rtti -fno-exceptions -ffreestanding -nostartfiles -fdata-sections -ffunction-sections"
K_LDFLAGS  += "-Wl,-Bstatic,-T$(VORTEX_RT_PATH)/linker/vx_link$(XLEN).ld -Wl,--gc-sections $(VORTEX_RT_PATH)/libvortexrt.a -lm"

CXXFLAGS += -std=c++11 -Wall -Wextra -pedantic -Wfatal-errors

CXXFLAGS += -I$(POCL_RT_PATH)/include

LDFLAGS += -L$(POCL_RT_PATH)/lib -L$(VORTEX_DRV_PATH)/stub -lOpenCL -lvortex

# Debugigng
ifdef DEBUG
	CXXFLAGS += -g -O0
else    
	CXXFLAGS += -O2 -DNDEBUG
endif

PROJECT = kmeans

SRCS = main.cc read_input.c rmse.c kmeans_clustering.c cluster.c getopt.c

all: $(PROJECT) kernel.pocl

kernel.pocl: kernel.cl
	LLVM_PREFIX=$(LLVM_PREFIX) POCL_DEBUG=all LD_LIBRARY_PATH=$(LLVM_PREFIX)/lib:$(POCL_CC_PATH)/lib $(POCL_CC_PATH)/bin/poclcc -LLCFLAGS $(K_LLCFLAGS) -CFLAGS $(K_CFLAGS) -LDFLAGS $(K_LDFLAGS) -o kernel.pocl kernel.cl
 
$(PROJECT): $(SRCS)
	$(CXX) $(CXXFLAGS) $^ $(LDFLAGS) -o $@

run-fpga: $(PROJECT) kernel.pocl   
	LD_LIBRARY_PATH=$(POCL_RT_PATH)/lib:$(VORTEX_DRV_PATH)/fpga:$(LD_LIBRARY_PATH) ./$(PROJECT)

run-asesim: $(PROJECT) kernel.pocl   
	LD_LIBRARY_PATH=$(POCL_RT_PATH)/lib:$(VORTEX_DRV_PATH)/asesim:$(LD_LIBRARY_PATH) ./$(PROJECT)
	
run-vlsim: $(PROJECT) kernel.pocl   
	LD_LIBRARY_PATH=$(POCL_RT_PATH)/lib:$(VORTEX_DRV_PATH)/vlsim:$(LD_LIBRARY_PATH) ./$(PROJECT)

run-simx: $(PROJECT) kernel.pocl   
	LD_LIBRARY_PATH=$(POCL_RT_PATH)/lib:$(VORTEX_DRV_PATH)/simx:$(LD_LIBRARY_PATH) ./$(PROJECT)

run-rtlsim: $(PROJECT) kernel.pocl   
	LD_LIBRARY_PATH=$(POCL_RT_PATH)/lib:$(VORTEX_DRV_PATH)/rtlsim:$(LD_LIBRARY_PATH) ./$(PROJECT)

.depend: $(SRCS)
	$(CXX) $(CXXFLAGS) -MM $^ > .depend;

clean:
	rm -rf $(PROJECT) *.o .depend 

clean-all: clean
	rm -rf *.pocl *.dump

ifneq ($(MAKECMDGOALS),clean)
    -include .depend
endif