49 lines
1.3 KiB
Makefile
49 lines
1.3 KiB
Makefile
rwildcard = $(foreach d, $(wildcard $1*), $(filter $(subst *, %, $2), $d) $(call rwildcard, $d/, $2))
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ifeq ($(strip $(DEVKITARM)),)
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$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
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endif
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CC := arm-none-eabi-gcc
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AS := arm-none-eabi-as
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LD := arm-none-eabi-ld
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OC := arm-none-eabi-objcopy
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name := $(shell basename $(CURDIR))
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dir_source := source
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dir_build := build
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dir_out := ../$(dir_build)
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ASFLAGS := -mcpu=arm946e-s
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CFLAGS := -Wall -Wextra -MMD -MP -mthumb -mthumb-interwork $(ASFLAGS) -fno-builtin -std=c11 -Wno-main -O2 -flto -ffast-math
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LDFLAGS := -nostdlib
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objects = $(patsubst $(dir_source)/%.s, $(dir_build)/%.o, \
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$(patsubst $(dir_source)/%.c, $(dir_build)/%.o, \
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$(call rwildcard, $(dir_source), *.s *.c)))
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.PHONY: all
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all: $(dir_out)/$(name).bin
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.PHONY: clean
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clean:
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@rm -rf $(dir_build)
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$(dir_out)/$(name).bin: $(dir_build)/$(name).elf
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$(OC) -S -O binary $< $@
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$(dir_build)/$(name).elf: $(objects)
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$(LINK.o) -T linker.ld $(OUTPUT_OPTION) $^
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$(dir_build)/memory.o: CFLAGS += -O3
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$(dir_build)/%.o: $(dir_source)/%.c
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@mkdir -p "$(@D)"
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$(COMPILE.c) $(OUTPUT_OPTION) $<
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$(dir_build)/%.o: $(dir_source)/%.s
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@mkdir -p "$(@D)"
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$(COMPILE.s) $(OUTPUT_OPTION) $<
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include $(call rwildcard, $(dir_build), *.d)
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