GDB 常用命令

GDB guide

(gdb) r      // run 

(gdb) c // continue

(gdb) q // quit gdb

(gdb) h // help

(gdb) kill    // kill process

(gdb) next // not into function

(gdb) step // into function

1. Breakpoint.

(gdb) b linenum|function     // set breakpoint at the line number or function

(gdb) b filename: linenum|function     // set breakpoint at line number or function of filename

(gdb) b            // set breakpoint at next instruction of stack, run one instruction at least

(gdb) info b     // list all break infomation

(gdb) info b n     // list breakpoint infomation by breaknum

(gdb) b ... if condition    // set breakpoint if conditon is true

(gdb) disable|enable|delete breaknum     // disable or enable or delete breakpoint by breaknum

(gdb) del    // delete all breakpoint

(gdb) clear linnum    // clear line number of breakpoint 

2 print

(gdb) p variable    // print variable value 

(gdb) p variable = value    // set and print variable value

3 List codes

(gdb) list    // 显示目前执行程序代码前后各五行的程序代码；或是显示从上次 list 之后的程序代码 

(gdb) list linenum

(gdb) list function    //显示该程序开始处前后五行的程序代码。

(gdb) list -    //上次显示程序代码的前面的十行