在linux下最简单的STM32gcc程序.docxVIP

在linux下最简单的STM32 gcc程序，需要三个文件分别为main.c makefile和stm32-linux.ld：main.c:int main(void){return 0;}makefile:TARGET = mainOBJS = main.oCC = arm-none-eabi-gccLD = arm-none-eabi-ldOBJCP = arm-none-eabi-objcopyCFLAGS = -mcpu=cortex-m3 -mthumb -nostartfilesLFLAGS = -T stm32-linux.ldCPFLAGS = -ObinaryTARGET_ELF = $(TARGET).elfTARGET_BIN = $(TARGET).bin$(TARGET_BIN):$(TARGET_ELF)$(OBJCP) $(CPFLAGS) $ $@$(TARGET_ELF):$(OBJS)$(LD) $(LFLAGS) -o $@ $$(OBJS):main.c$(CC) $(CFLAGS) $ $(LFLAGS) -o $@clean:rm -f $(TARGET) *.ostm32-linux.ld:MEMORY{rom (rx) : ORIGIN = 0, LENGTH = 2Mram (rwx) : ORIGIN = 0 LENGTH = 4M}SECTIONS{. = 0x0;.text : {*(vectors)*(.text)*(.rodata)}. = 0.data : {*(.data)}.bss : {*(.bss)}}编译过程：[root@localhost src]# [root@localhost src]# lsmain.c makefile stm32-linux.ld[root@localhost src]# makearm-none-eabi-gcc -mcpu=cortex-m3 -mthumb -Wall -g -O0 -nostartfiles main.c -T stm32-linux.ld -o main.oarm-none-eabi-ld -T stm32-linux.ld -o main.elf main.oarm-none-eabi-objcopy -Obinary main.elf main.bin[root@localhost src]# arm-none-eabi-objdump -S main.elf main.elf: file format elf32-littlearmDisassembly of section .textmain: (void*)STACK_TOP, (void*)main};int main(void){ 0: b480 push {r7} 2: af00 add r7, sp, #0 return 0; 4: f04f 0300 mov.w r3, #0} 8: 4618 mov r0, r3 a: 46bd mov sp, r7 c: bc80 pop {r7} e: 4770 bx lr[root@localhost src]# make cleanrm -f main *.o *.elf *.bin[root@localhost src]#