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- # Color definitions -------------------------------
- NO_COLOR="\033[0m"
- RED="\033[38;5;009m"
- GREEN="\033[38;5;010m"
- YELLOW="\033[38;5;011m"
- ORANGE="\033[38;5;214m"
- LIGHTPURPLE="\033[38;5;177m"
- PURPLE="\033[38;5;135m"
- CYAN="\033[38;5;014m"
- LIGHTBLUE="\033[38;5;39m"
- BLUE="\033[38;5;75m"
- DARKBLUE="\033[38;5;33m"
- LIGHTGRAY="\033[38;5;252m"
- DARKGRAY="\033[38;5;242m"
- BRIGHTRED="\033[91m"
- BOLD="\033[1m"
-
- # PLATFORM definition, if not given ----------------
- PLATFORM ?= pqvexriscvsim
-
- # PATHS (adapt to your system)----------------------
- PATH_RISCV=/opt/riscv/
- PATH_RISC_BIN=$(PATH_RISCV)bin/
- PREFIX?=$(PATH_RISC_BIN)riscv64-unknown-elf
-
- # Project DIRS -------------------------------------
- LD_DIR=ld/
- BSP_DIR=bsp/
- SRC_DIR=src/
- INC_DIR=inc/
- OBJ_DIR=obj/
-
- # TOOLS --------------------------------------------
- AR?=$(PREFIX)-ar
- GCC?=$(PREFIX)-gcc
- CLANG=clang
- GDB?=$(PREFIX)-gdb
- OBJDUMP?=$(PREFIX)-objdump
- OBJCOPY?=$(PREFIX)-objcopy
- RISCVPATH=$(PATH_RISCV)riscv64-unknown-elf
- ECHO?=echo
-
- # GCC FLAGS ---------------------------------------
- CC=$(GCC)
-
- GCC_CFLAGS_COMMON := -g \
- -Os \
- -fno-builtin-printf \
- -Wno-unused-parameter \
- -Wall -Wextra -Wredundant-decls \
- -Wshadow -Wno-unused-function \
- -fno-common \
- -I$(RISCVPATH)/include \
- -I$(INC_DIR)
-
- GCC_CFLAGS_MURAX=-fstrict-volatile-bitfields --specs=nosys.specs
-
- RISCV_ARCH?=rv32im
- RISCV_ABI?=ilp32
- RISCV_CMODEL?=medany
- RISCV_ARCHFLAGS +=-march=$(RISCV_ARCH)
- RISCV_ARCHFLAGS +=-mabi=$(RISCV_ABI)
- RISCV_ARCHFLAGS +=-mcmodel=$(RISCV_CMODEL)
- GCC_RISCV_ARCHFLAGS=$(RISCV_ARCHFLAGS)
-
- CFLAGS += $(GCC_CFLAGS_COMMON) \
- $(GCC_CFLAGS_MURAX) \
- $(GCC_RISCV_ARCHFLAGS)
-
- # Linker flags --------------------------------------
- LDSCRIPT = $(LD_DIR)$(PLATFORM).ld
- LDFLAGS = $(GCC_RISCV_ARCHFLAGS)
- LDFLAGS += --specs=nosys.specs
- LDFLAGS += -Wl,-T$(LDSCRIPT)
- LDFLAGS += -nostartfiles -ffreestanding -Wl,--gc-sections
- LDFLAGS += -L$(BSP_DIR)
- LDFLAGS += -Wl,--start-group -l$(PLATFORM)bsp -lc -lm -Wl,--end-group
-
- # Object files --------------------------------------
- SDK_ASM_SRCS := $(wildcard $(SRC_DIR)*.S)
- SDK_C_SRCS := $(wildcard $(SRC_DIR)*.c)
- SDK_ASM_OBJS := $(SDK_ASM_SRCS:$(SRC_DIR)%.S=$(OBJ_DIR)%.o)
- SDK_C_OBJS := $(SDK_C_SRCS:$(SRC_DIR)%.c=$(OBJ_DIR)%.o)
- SDK_OBJS := $(SDK_C_OBJS) $(SDK_ASM_OBJS)
-
- # Target all ----------------------------------------
- .PHONY: all
- all: $(BSP_DIR)lib$(PLATFORM)bsp.a main.hex main.bin
-
- # Targets --------------------------------------------
- main.bin: main.elf
- @$(ECHO) $(PURPLE)"obj "$@""$(LIGHTGRAY)
- $(OBJCOPY) -O binary $< $@
-
- main.hex: main.elf
- @$(ECHO) $(PURPLE)"obj "$@""$(LIGHTGRAY)
- $(OBJCOPY) -O ihex $< $@
-
- main.elf: $(LIBWRAP) $(SDK_OBJS) $(LDSCRIPT)
- @$(ECHO) $(LIGHTPURPLE)"building "$@""$(LIGHTGRAY)
- $(GCC) $(GCC_RISCV_ARCHFLAGS) $(GCC_CFLAGS_COMMON) $(SDK_OBJS) -o $@ $(LDFLAGS)
-
- $(SDK_ASM_OBJS): $(OBJ_DIR)%.o: $(SRC_DIR)%.S
- @$(ECHO) $(ORANGE)"building "$@" (.S)"$(LIGHTGRAY)
- $(CC) $(CFLAGS) -c -o $@ $^
-
- $(SDK_C_OBJS): $(OBJ_DIR)%.o: $(SRC_DIR)%.c
- @$(ECHO) $(ORANGE)"building "$@" (.c)"$(LIGHTGRAY)
- $(CC) $(CFLAGS) -c -o $@ $^
-
- $(BSP_DIR)lib$(PLATFORM)bsp.a:
- @$(ECHO) $(ORANGE)"building "$@" (.a)"$(LIGHTGRAY)
- cd $(BSP_DIR) && $(MAKE)
-
- .PHONY: clean
- clean:
- @$(ECHO) $(RED)"cleaning..."$(LIGHTGRAY)
- rm -f main.elf main.bin main.hex $(SDK_OBJS)
- cd $(BSP_DIR) && $(MAKE) clean
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