gdb MI命令中文

GDB MI的命令总共分为以下几个部分：

1.断点(Breakpoint)

2.程序环境(Program Context)

3.线程(Thread)

4.程序执行(Program Execution)

5.栈(Stack)

6.变量(Variable)

7.数据(Data)

8.跟踪点(Tracepoint)

9.符号(Symbol)

10.文件(File)

11.目标数据(Target Manipulation)

12.其它杂项

我们以下面这段代码为例演示各种命令的执行结果:

/*

** demo.c

*/

#include

int swap(int a[], int len)

{

int i;

int temp;

for(i = 0; i < len / 2; i++)

{

temp = a[i];

a[i] = a[len - i - 1];

a[len - i - 1] = temp;

}

return 0;

}

int main()

{

int array[10];

int i;

for(i = 0; i < 10; i++)

array[i] = i;

printf("swap before:");

for(i = 0; i < 10; i++)

printf("%d ", array[i]);

printf(" \n");

swap(array, 10);

printf("swap after:");

for(i = 0; i < 10; i++)

printf("%d ", array[i]);

printf(" \n");

return 0;

}

执行gcc -g demo.c -o demo.exe编译。

具体详细的命令还请大家看gdb手册，下面一一介绍：1.断点

-break-after

用法：-break-after number count

语义：第number个断点在被执行count次后有效

-break-condition

用法：-break-condition number expr

语义：第number个断点在表达式expr为true时有效

-break-delete

用法：-break-delete ( breakpoint number )+

语义：删除指定number 的多个断点

-break-disable

用法：-break-disable ( breakpoint number)+

语义：使指定number的多个断点失效

-break-enable

用法：-break-enable ( breakpoint number)+

语义：使指定number的多个断点起效

-break-info

用法：-break-info breakpoint

语义：得到指定断点的信息

-break-insert

用法：

-break-insert [ -t ] [ -h ] [ -r ]

[ -c condition ] [ -i ignore-count ]

[ -p thread ] [ line | addr ]

语义：-t 插入一个临时断点

-h 插于一个硬件端点

-r 插入一个正则断点，当函数名匹配正则表达式时有效

-c 插入一个条件断点

-i 插入一个指定无效次数的断点

如果指定了line选项，可以使用如下格式：

函数

文件名：行号

文件名：函数

地址

-break-list

用法：-break-list

语义：先是已插入断点的列表

-break-watch

用法：-break-watch [ -a | -r ] variable

语义：创建一个观察点，-a表示对variable读写时有效，-r表示只读时有效运行效果：

(gdb)

-break-insert main

^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0040 10f

6",func="main",file="demo.c",line="23",times="0"}

(gdb)

-break-insert 28

^done,bkpt={number="2",type="breakpoint",disp="keep",enabled="y",addr="0x0040 110

8",func="main",file="demo.c",line="28",times="0"}

(gdb)

-break-list

^done,BreakpointTable={nr_rows="2",nr_cols="6",hdr=[{width="3",alignment="-1", co

l_name="number",colhdr="Num"},{width="14",alignment="-1",col_name="type",col hdr=

"Type"},{width="4",alignment="-1",col_name="disp",colhdr="Disp"},{width="3",ali g

nment="-1",col_name="enabled",colhdr="Enb"},{width="10",alignment="-1",col_na me=

"addr",colhdr="Address"},{width="40",alignment="2",col_name="what",colhdr="W hat"

}],body=[bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0 040

10f6",func="main",file="demo.c",line="23",times="0"},bkpt={number="2",type="br ea

kpoint",disp="keep",enabled="y",addr="0x00401108",func="main",file="demo.c",lin e

="28",times="0"}]}

(gdb)

-exec-run

^running

(gdb)

*stopped,reason="breakpoint-hit",bkptno="1",thread-id="1",frame={addr="0x004010 f

6",func="main",args=[],file="demo.c",line="23"}

(gdb)

-exec-continue

^running

(gdb)

*stopped,reason="breakpoint-hit",bkptno="2",thread-id="1",frame={addr="0x004011 0

8",func="main",args=[],file="demo.c",line="28"}

(gdb)