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