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##
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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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OBJCOPY = objcopy
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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 = $(MCUFLAGS) -ggdb -ffreestanding -nostdlib -fsigned-char -I.. \
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-Wall -Werror -Wextra -pedantic
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#-Wno-overlength-strings -Wno-discarded-qualifiers
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LFLAGS = -T link.ld
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OUT = main.elf
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export
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all:
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@$(MAKE) -C src/kernel
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@$(MAKE) -C src/fs
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@$(MAKE) -C src/user
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@echo " INITRD"
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@tools/rba initrd.img $$(find initrd/*)
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@$(CROSS)$(OBJCOPY) -B arm -I binary -O elf32-littlearm initrd.img \
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initrd.img.o
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@echo " LINK " $(OUT)
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@$(CROSS)$(CC) $(CFLAGS) $(LFLAGS) -o $(OUT) \
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$$(find src/fs src/kernel src/user -name "*.o") initrd.img.o
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clean:
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@echo " CLEAN"
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@$(MAKE) -C src/kernel clean
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@$(MAKE) -C src/fs clean
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@$(MAKE) -C src/user clean
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@rm -f $(OUT)
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