1 # 2 # Copyright (C) 2016 The Android Open Source Project 3 # 4 # Licensed under the Apache License, Version 2.0 (the "License"); 5 # you may not use this file except in compliance with the License. 6 # You may obtain a copy of the License at 7 # 8 # http://www.apache.org/licenses/LICENSE-2.0 9 # 10 # Unless required by applicable law or agreed to in writing, software 11 # distributed under the License is distributed on an "AS IS" BASIS, 12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 # See the License for the specific language governing permissions and 14 # limitations under the License. 15 # 16 17 GCC = $(CROSS_COMPILE)gcc 18 OBJCOPY = $(CROSS_COMPILE)objcopy 19 20 FLAGS += -mthumb -mcpu=cortex-m4 -march=armv7e-m -mno-thumb-interwork -fno-unwind-tables -fstack-reuse=all -Os -Wall -Werror -nostartfiles 21 22 23 tool.bin: tool.elf Makefile 24 $(OBJCOPY) -j .data -j .text -I elf32-littlearm -O binary tool.elf tool.bin 25 26 tool.elf: tool.c Makefile 27 $(GCC) -o tool.elf $(FLAGS) tool.c 28 29 clean: 30 rm -rf tool.o tool.bin 31 32
