# 自動反匯編后面要執行的代碼 ## 例子 (gdb) set disassemble-next-line on (gdb) start The program being debugged has been started already. Start it from the beginning? (y or n) y Temporary breakpoint 3 at 0x400543: file 1.c, line 14. Starting program: /home/teawater/tmp/a.out Temporary breakpoint 3, main (argc=1, argv=0x7fffffffdf38, envp=0x7fffffffdf48) at 1.c:14 14 printf("1\n"); => 0x0000000000400543 <main+19>: bf f0 05 40 00 mov $0x4005f0,%edi 0x0000000000400548 <main+24>: e8 c3 fe ff ff callq 0x400410 <puts@plt> (gdb) si 0x0000000000400548 14 printf("1\n"); 0x0000000000400543 <main+19>: bf f0 05 40 00 mov $0x4005f0,%edi => 0x0000000000400548 <main+24>: e8 c3 fe ff ff callq 0x400410 <puts@plt> (gdb) 0x0000000000400410 in puts@plt () => 0x0000000000400410 <puts@plt+0>: ff 25 02 0c 20 00 jmpq *0x200c02(%rip) # 0x601018 <puts@got.plt> (gdb) set disassemble-next-line auto (gdb) start Temporary breakpoint 1 at 0x400543: file 1.c, line 14. Starting program: /home/teawater/tmp/a.out Temporary breakpoint 1, main (argc=1, argv=0x7fffffffdf38, envp=0x7fffffffdf48) at 1.c:14 14 printf("1\n"); (gdb) si 0x0000000000400548 14 printf("1\n"); (gdb) 0x0000000000400410 in puts@plt () => 0x0000000000400410 <puts@plt+0>: ff 25 02 0c 20 00 jmpq *0x200c02(%rip) # 0x601018 <puts@got.plt> (gdb) 0x0000000000400416 in puts@plt () => 0x0000000000400416 <puts@plt+6>: 68 00 00 00 00 pushq $0x0 ## 技巧 如果要在任意情況下反匯編后面要執行的代碼： (gdb) set disassemble-next-line on 如果要在后面的代碼沒有源碼的情況下才反匯編后面要執行的代碼： (gdb) set disassemble-next-line auto 關閉這個功能： (gdb) set disassemble-next-line off ## 貢獻者 teawater