PROJ_NAME=hello_world DEBUG=no BENCH=no MULDIV=no SRCS = $(wildcard src/*.c) \ $(wildcard src/*.cpp) \ $(wildcard src/*.S) OBJDIR = build INC = LIBS = LIBSINC = -L$(OBJDIR) LDSCRIPT = ./src/linker.ld #include ../../../resources/gcc.mk # Set it to yes if you are using the sifive precompiled GCC pack SIFIVE_GCC_PACK ?= yes ifeq ($(SIFIVE_GCC_PACK),yes) RISCV_NAME ?= riscv32-unknown-elf RISCV_PATH ?= /home/user/riscv/opt/rv32im/ else RISCV_NAME ?= riscv32-unknown-elf ifeq ($(MULDIV),yes) RISCV_PATH ?= /opt/riscv32im/ else RISCV_PATH ?= /opt/riscv32i/ endif endif MABI=ilp32 MARCH := rv32i_zicsr ifeq ($(MULDIV),yes) MARCH := $(MARCH)m endif ifeq ($(COMPRESSED),yes) MARCH := $(MARCH)ac endif CFLAGS += -march=$(MARCH) -mabi=$(MABI) -DNDEBUG LDFLAGS += -march=$(MARCH) -mabi=$(MABI) #include ../../../resources/subproject.mk ifeq ($(DEBUG),yes) CFLAGS += -g3 -O0 endif ifeq ($(DEBUG),no) CFLAGS += -g -Os endif ifeq ($(BENCH),yes) CFLAGS += -fno-inline endif ifeq ($(SIFIVE_GCC_PACK),yes) RISCV_CLIB=$(RISCV_PATH)/$(RISCV_NAME)/lib/$(MARCH)/$(MABI)/ else RISCV_CLIB=$(RISCV_PATH)/$(RISCV_NAME)/lib/ endif RISCV_OBJCOPY = $(RISCV_PATH)/bin/$(RISCV_NAME)-objcopy RISCV_OBJDUMP = $(RISCV_PATH)/bin/$(RISCV_NAME)-objdump RISCV_CC=$(RISCV_PATH)/bin/$(RISCV_NAME)-g++ CFLAGS += -MD -fstrict-volatile-bitfields -fno-strict-aliasing LDFLAGS += -nostdlib -lgcc -mcmodel=medany -nostartfiles -ffreestanding -Wl,-Bstatic,-T,$(LDSCRIPT),-Map,$(OBJDIR)/$(PROJ_NAME).map,--print-memory-usage #LDFLAGS += -lgcc -lc -lg -nostdlib -lgcc -msave-restore --strip-debug, OBJS := $(SRCS) OBJS := $(OBJS:.c=.o) OBJS := $(OBJS:.cpp=.o) OBJS := $(OBJS:.S=.o) OBJS := $(OBJS:..=miaou) OBJS := $(addprefix $(OBJDIR)/,$(OBJS)) all: $(OBJDIR)/$(PROJ_NAME).elf $(OBJDIR)/$(PROJ_NAME).hex $(OBJDIR)/$(PROJ_NAME).asm $(OBJDIR)/$(PROJ_NAME).v $(OBJDIR)/%.elf: $(OBJS) | $(OBJDIR) $(RISCV_CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(LIBSINC) $(LIBS) %.hex: %.elf $(RISCV_OBJCOPY) -O ihex $^ $@ %.bin: %.elf $(RISCV_OBJCOPY) -O binary $^ $@ %.v: %.elf $(RISCV_OBJCOPY) -O verilog $^ $@ %.asm: %.elf $(RISCV_OBJDUMP) -S -d $^ > $@ $(OBJDIR)/%.o: %.c mkdir -p $(dir $@) $(RISCV_CC) -c $(CFLAGS) $(INC) -o $@ $^ $(RISCV_CC) -S $(CFLAGS) $(INC) -o $@.disasm $^ $(OBJDIR)/%.o: %.cpp mkdir -p $(dir $@) $(RISCV_CC) -c $(CFLAGS) $(INC) -o $@ $^ $(OBJDIR)/%.o: %.S mkdir -p $(dir $@) $(RISCV_CC) -c $(CFLAGS) -o $@ $^ -D__ASSEMBLY__=1 $(OBJDIR): mkdir -p $@ .PHONY: clean clean: rm -rf $(OBJDIR)/src rm -f $(OBJDIR)/$(PROJ_NAME).elf rm -f $(OBJDIR)/$(PROJ_NAME).hex rm -f $(OBJDIR)/$(PROJ_NAME).map rm -f $(OBJDIR)/$(PROJ_NAME).v rm -f $(OBJDIR)/$(PROJ_NAME).asm find $(OBJDIR) -type f -name '*.o' -print0 | xargs -0 -r rm find $(OBJDIR) -type f -name '*.d' -print0 | xargs -0 -r rm clean-all : clean .SECONDARY: $(OBJS)