MNRS-BM-BSP/raven/bsp/env/common.mk

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2020-09-03 11:13:37 +02:00
# See LICENSE for license details.
ifndef _SIFIVE_MK_COMMON
_SIFIVE_MK_COMMON := # defined
.PHONY: all
all: $(TARGET)
include $(BSP_BASE)/libwrap/libwrap.mk
BOARD ?= freedom-e300-hifive1
ENV_DIR = $(BSP_BASE)/env
PLATFORM_DIR = $(ENV_DIR)/$(BOARD)
#TARGET_FLAVOR := -march=rv32imac -mabi=ilp32 -mcmodel=medany -msmall-data-limit=8 -x assembler-with-cpp
TARGET_FLAVOR := -march=rv32i -mabi=ilp32
ASM_SRCS += $(ENV_DIR)/start.S
ASM_SRCS += $(ENV_DIR)/entry.S
C_SRCS += $(PLATFORM_DIR)/init.c
LINKER_SCRIPT := $(PLATFORM_DIR)/link.lds
INCLUDES += -I$(BSP_BASE)/include
INCLUDES += -I$(BSP_BASE)/drivers/
INCLUDES += -I$(ENV_DIR)
INCLUDES += -I$(PLATFORM_DIR)
TOOL_DIR ?= $(BSP_BASE)/../toolchain/bin
CC := $(TOOL_DIR)/riscv64-unknown-elf-gcc ${TARGET_FLAVOR}
AR := $(TOOL_DIR)/riscv64-unknown-elf-ar
OBJDUMP := $(TOOL_DIR)/riscv64-unknown-elf-objdump
LDFLAGS += -T $(LINKER_SCRIPT) -nostartfiles
LDFLAGS += -L$(ENV_DIR)
ASM_OBJS := $(ASM_SRCS:.S=.o)
C_OBJS := $(C_SRCS:.c=.o)
LINK_OBJS += $(ASM_OBJS) $(C_OBJS)
LINK_DEPS += $(LINKER_SCRIPT)
CLEAN_OBJS += $(TARGET) $(LINK_OBJS)
CFLAGS += -g
$(TARGET): $(LINK_OBJS) $(LINK_DEPS)
$(CC) $(CFLAGS) $(INCLUDES) $(LINK_OBJS) -o $@ $(LDFLAGS)
$(OBJDUMP) -d $(TARGET) > $(TARGET).dis
$(ASM_OBJS): %.o: %.S $(HEADERS)
$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
$(C_OBJS): %.o: %.c $(HEADERS)
$(CC) $(CFLAGS) $(INCLUDES) -include sys/cdefs.h -c -o $@ $<
.PHONY: clean
clean:
rm -f $(CLEAN_OBJS)
endif # _SIFIVE_MK_COMMON