将机器码的指令字,用文本文件保存,将指令字保存成.S文件,如下格式:
.inst 0xf9440e11 .inst 0x9120a210 |
(1) 用对应架构的的汇编器,编译成目标文件。命令:as a.s -o a.out
(2)用objdump反汇编,生成汇编语句。命令:objdump -d a.out
实践:
[82#yuchen@ubuntu ~]# cat a.s
.inst 0xf9440e11
.inst 0x9120a210
[83#yuchen@ubuntu ~]# aarch64_be-linux-gnu-as a.s
[84#yuchen@ubuntu ~]# aarch64_be-linux-gnu-objdump -d a.out
a.out: file format elf64-bigaarch64
Disassembly of section .text:
0000000000000000 <.text>:
0: f9440e11 ldr x17, [x16,#2072]
4: 9120a210 add x16, x16, #0x828
[85#yuchen@ubuntu ~]#