Arm汇编学习笔记(一)——编写编译并执行简单汇编文件

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本文介绍了如何在Android平台下编写、编译和执行Arm汇编程序。首先创建了test.S文件，通过arm-linux-androideabi-as命令将其编译为.o文件，再使用arm-linux-androideabi-objdump反汇编查看代码。接着，通过特定选项将.o文件链接为可执行文件test.out，并在Android设备上运行验证其返回值，展示了完整的流程。

1. 简单编译汇编文件并查看

  • 建立一个test.S文件，并输入以下内容：

    mov r0, r1

  • 命令行下输入命令：

arm-linux-androideabi-as test.S -o test.o

得到test.o


  • 反汇编.o文件查看汇编代码，输入命令：

arm-linux-androideabi-objdump -d test.o

得到以下输出：

test.o:     file format elf32-littlearm


Disassembly of section .text:

00000000 <.text>:
   0:	e1a00001 	mov	r0, r1

  • 查看.o文件的符号表，输入命令：arm-linux-androideabi-nm test.o

  • 通过ida查看test.o，内容如下：



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MVN............................................................................................................20 算术逻辑运算指令......................................................................................................20 　 ADD.............................................................................................................20 　 SUB..............................................................................................................21 　 RSB..............................................................................................................21 　 ADC.............................................................................................................21 　 SBC..............................................................................................................21 　 RSC..............................................................................................................22 　 AND.............................................................................................................22 　 ORR..............................................................................................................22 　 EOR..............................................................................................................22 　 BIC...............................................................................................................23 比较指令......................................................................................................................23 　 CMP.............................................................................................................23 　 CMN.............................................................................................................23 　 TST...............................................................................................................24 　 TEQ..............................................................................................................24 乘法指令......................................................................................................................25 　 MUL.............................................................................................................25 　 MLA.............................................................................................................25 　 UMULL........................................................................................................25 　 UMLAL........................................................................................................26 　 SMULL........................................................................................................26 　 SMLAL........................................................................................................26 ARM跳转指令....................................................................................................................27 　 B...........................................................................................................................27 　 BL.........................................................................................................................27 　 BX........................................................................................................................27 ARM协处理器指令............................................................................................................28 　 CDP......................................................................................................................28 　 LDC......................................................................................................................29 　 STC......................................................................................................................29 　 MCR.....................................................................................................................30 　 MRC.....................................................................................................................30 ARM杂项指令....................................................................................................................31 　 SWI......................................................................................................................31 　 MRS.....................................................................................................................32 　 MSR.....................................................................................................................33 ARM伪指令........................................................................................................................34 　 ADR.....................................................................................................................35 　 ADRL...................................................................................................................35 　 LDR......................................................................................................................36 　 NOP......................................................................................................................37 Thumb指令集.............................................................................................................................39 Thumb指令集与ARM指令集的区别..............................................................................39 Thumb存储器访问指令.....................................................................................................40 　 LDR和STR........................................................................................................41 　 PUSH和POP......................................................................................................43 　 LDMIA和STMIA..............................................................................................43 Thumb数据处理指令.........................................................................................................45 数据传送指令..............................................................................................................46 　 MOV............................................................................................................46 　 MVN............................................................................................................46 　 NEG..............................................................................................................47 算术逻辑运算指令......................................................................................................47 　 ADD.............................................................................................................47 　 SUB..............................................................................................................48 　 ADC.............................................................................................................49 　 SBC..............................................................................................................49 　 MUL.............................................................................................................50 　 AND.............................................................................................................50 　 ORR..............................................................................................................50 　 EOR..............................................................................................................51 　 BIC...............................................................................................................51 　 ASR..............................................................................................................51 　 LSL...............................................................................................................52 　 LSR..............................................................................................................52 　 ROR..............................................................................................................53 比较指令......................................................................................................................53 　 CMP.............................................................................................................53 　 CMN.............................................................................................................54 　 TST...............................................................................................................54 Thumb跳转指令.........................................................................................................55 　 B...................................................................................................................55 　 BL.................................................................................................................55 　 BX................................................................................................................55 Thumb杂项指令.........................................................................................................56 　 SWI..............................................................................................................56 Thumb伪指令.............................................................................................................57 　 ADR.............................................................................................................57 　 LDR..............................................................................................................57 　 NOP..............................................................................................................58 伪指令..................................................................................................................................................59 符号定义伪指令..........................................................................................................................59 　 GBLA、GBLL、GBLS..............................................................................................59 　 LCLA、LCLL、LCLS................................................................................................60 　 SETA、SETL、SETS.................................................................................................61 　 RLIST...........................................................................................................................61 　 CN................................................................................................................................62 　 CP.................................................................................................................................62 　 DN、SN.......................................................................................................................62 　 FN.................................................................................................................................63 数据定义伪指令..........................................................................................................................63 　 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宏定义及其作用..................................................................................................................93 子程序的调用..............................................................................................................................94 数据比较跳转..............................................................................................................................95 循环..............................................................................................................................................95 数据块复制..................................................................................................................................95 栈操作..........................................................................................................................................96 特殊寄存器定义及应用..............................................................................................................96 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