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70 lines
1.8 KiB
Makefile
70 lines
1.8 KiB
Makefile
##
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# @file Makefile
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# Script to build source files
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#
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# Copyright (C) 2018 Clyne Sullivan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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CROSS = arm-none-eabi-
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CC = gcc
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AS = as
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AR = tools/rba
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OBJCOPY = objcopy
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STRIP = strip
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MCUFLAGS = -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16
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AFLAGS = $(MCUFLAGS)
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CFLAGS = $(MCUFLAGS) -O2 \
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-Iinclude -Iinclude/cmsis \
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-fno-builtin -fsigned-char -ffreestanding \
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-Wall -Werror -Wextra -pedantic \
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-Wno-overlength-strings -Wno-discarded-qualifiers
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LFLAGS = -T link.ld
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CFILES = $(wildcard src/*.c)
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AFILES = $(wildcard src/*.s)
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OUTDIR = out
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OFILES = $(patsubst src/%.c, $(OUTDIR)/%.o, $(CFILES)) \
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$(patsubst src/%.s, $(OUTDIR)/%.asm.o, $(AFILES))
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OUT = out/main.elf
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INITRD = initrd.img
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all: $(OUT)
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$(OUT): $(OFILES) initrd/* libinterp.a
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@echo " INITRD " $(INITRD)
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@rm -f $(INITRD)
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@$(AR) $(INITRD) initrd/*
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@$(CROSS)$(OBJCOPY) -B arm -I binary -O elf32-littlearm $(INITRD) out/initrd.img.o
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@echo " LINK " $(OUT)
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@$(CROSS)$(CC) $(CFLAGS) $(LFLAGS) out/*.o -o $(OUT) -L. -linterp -lm
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$(OUTDIR)/%.o: src/%.c
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@echo " CC " $<
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@$(CROSS)$(CC) $(CFLAGS) -c $< -o $@
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$(OUTDIR)/%.asm.o: src/%.s
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@echo " AS " $<
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@$(CROSS)$(AS) $(AFLAGS) -c $< -o $@
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clean:
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@echo " CLEAN"
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@rm -rf out/*
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