2018-12-08 20:19:54 +00:00
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all: $(TARGET)
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MK_FILE_PATH = $(lastword $(MAKEFILE_LIST))
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PRJ_DIR = $(abspath $(dir $(MK_FILE_PATH)))
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# Hardcoded paths
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OPENOCD_BIN := /usr/bin/riscv-openocd
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RISCV_SDK_DIR := $(abspath $(PRJ_DIR)/../../riscv-sdk)
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OUT_DIR := bin
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# Variables
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SDK_INC := $(RISCV_SDK_DIR)/include
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SDK_WRAP := $(RISCV_SDK_DIR)/libwrap
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SDK_OPENOCD_CFG := $(RISCV_SDK_DIR)/openocd.cfg
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# libwrap config
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include $(SDK_WRAP)/libwrap.mk
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# SDK sources
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SDK_SRC_ASM := \
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$(RISCV_SDK_DIR)/entry.S \
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$(RISCV_SDK_DIR)/start.S
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SDK_SRC_C := \
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$(RISCV_SDK_DIR)/init.c
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SDK_LINK_SCRIPT := \
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$(RISCV_SDK_DIR)/flash.lds
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# Variable used by libwrap.mk
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INCLUDES := -I$(RISCV_SDK_DIR)/include
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# Platform specific: HiFive1
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#Name of variable required by libwrap.mk
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ARCH_FLAGS += \
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-march=rv32imac -mabi=ilp32 -mcmodel=medany
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CFLAGS += \
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-O3 -fno-builtin-printf \
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-Wall -Wextra -Wshadow -fno-common \
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2018-12-08 20:35:40 +00:00
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-include sys/cdefs.h \
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2018-12-08 20:19:54 +00:00
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$(ARCH_FLAGS) \
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2018-12-08 20:35:40 +00:00
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$(LOCAL_CFLAGS)
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2018-12-08 20:19:54 +00:00
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LDFLAGS += \
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-static \
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-L$(RISCV_SDK_DIR) \
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-T$(SDK_LINK_SCRIPT) \
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-nostartfiles \
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--specs=nano.specs \
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-Wl,--gc-sections \
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$(LOCAL_LDFLAGS)
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# Common targets
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OBJ_S := \
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$(LOCAL_SRC_S:.S=.o) \
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$(SDK_SRC_ASM:.S=.o)
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OBJ_C := \
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$(LOCAL_SRC_C:.c=.o) \
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$(SDK_SRC_C:.c=.o)
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# Compilation targets
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$(OBJ_S): %.o: %.S
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mkdir -p $(OUT_DIR)/$(dir $@)
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$(CC) $(ARCH_FLAGS) -I$(SDK_INC) $(OPT) -c -o $(OUT_DIR)/$@ $<
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$(OBJ_C): %.o: %.c
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mkdir -p $(OUT_DIR)/$(dir $@)
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$(CC) -I$(SDK_INC) $(CFLAGS) $(OPT) -c -o $(OUT_DIR)/$@ $<
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$(TARGET): $(OBJ_C) $(OBJ_S) $(LIBWRAP)
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$(CC) -I$(SDK_INC) $(CFLAGS) $(OPT) \
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$(addprefix $(OUT_DIR)/,$(OBJ_S)) \
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$(addprefix $(OUT_DIR)/,$(OBJ_C)) \
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-o $(OUT_DIR)/$@ $(LDFLAGS)
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clean:
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rm -rf $(OUT_DIR)
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rm -rf $(LIBWRAP)
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run:
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$(OPENOCD_BIN) -s "sdk" -f $(SDK_OPENOCD_CFG) & \
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$(GDB) \
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"$(OUT_DIR)/$(TARGET)" \
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--batch \
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-ex "set remotetimeout 240" \
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-ex "target extended-remote localhost:3333" \
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-ex "monitor reset halt" \
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-ex "monitor flash protect 0 64 last off" \
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-ex "load" \
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-ex "monitor resume" \
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-ex "monitor shutdown" \
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-ex "quit"
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.PHONY: clean all run
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