http://jackxiang.com/index.php zh-cn http://jackxiang.com/post// jack <xdy108@126.com> Thu, 01 Sep 2011 04:58:45 +0000 http://jackxiang.com/post// (gdb) l 23 Line number 18 out of range; array.c has 17 lines. 发现共才17行，于是用下面命令： (gdb) l 1,17 1       #include <stdio.h> 2       #include <stdlib.h> 3       int main() 4       { 5               int i; 6               int len=5; 7               int *array; 8               array = (int *) malloc (len * sizeof (int)); 9               for(i=0;i<len;i++) 10              { 11                      //scanf("%d",array+i); 12                      *(array+i) = i; 13              } 14              printf("The Result Value is :\n"); 15              for(i=0;i<len;i++) 16              printf("%d\n",*(array++)); 17      } (gdb) b 14 Breakpoint 1 at 0x8048452: file array.c, line 14. (gdb) r Starting program: /home/admin/c++/array Breakpoint 1, main () at array.c:14 14              printf("The Result Value is :\n"); (gdb) p *array@5 $1 = {0, 1, 2, 3, 4}
二.打印C程序中的结构体的方法
root@116.255.139.240:/home/admin/c++# cat struct.c #include <stdio.h> #include <string.h> typedef struct cfg { int type; char name[12]; } man; int main() {         man oneperson;         oneperson.type = 1;         char name[12]="jack";         strcpy(oneperson.name,name);         printf("jackxiang\n");         printf("jackxiang\n"); }

打印整个结构体：
(gdb) p oneperson $1 = {type = 1, name = "jack\000\217\306\000\220\065\260"}

打结构体中的某个值：
(gdb) p oneperson->type $2 = 1 (gdb) p oneperson->name $3 = "jack\000\217\306\000\220\065\260" (gdb) p oneperson $1 = {type = 1, name = "jack\000\217\306\000\220\065\260"}

如果打开printf pretty这个选项，那么当GDB显示结构体时会比较漂亮。如：
(gdb) set print pretty on (gdb) print oneperson $1 = {   type = 1,   name = "jack\000\217\306\000\220\065\260" } [codes=html] 三.在GDB中加入变量调试For循环中的数组的方法： [codes=html] (gdb) p oneperson.name $2 = "jack\000\217\306\000\220\065\260" (gdb) p oneperson->name $3 = "jack\000\217\306\000\220\065\260" (gdb) l 1       #include <stdio.h> 2       int w[4] = {12,5,8,29}; 3       main() 4       { 5          w[2] = 88; 6       } (gdb) b 6 Breakpoint 1 at 0x804838c: file set.c, line 6. (gdb) r Starting program: /home/admin/c++/set Breakpoint 1, main () at set.c:6 6       } (gdb) set $i = 0 (gdb) p w[$i] $1 = 12 (gdb) p w[$i++] $2 = 12 (gdb) p w[$i] $3 = 5 (gdb) p w[$i++] $4 = 5 (gdb) p w[$i] $5 = 88
四.修改变量的值
(gdb) p w[2] $6 = 88 (gdb) p w[2]=99 $7 = 99 (gdb) p w[2] $8 = 99

他人实践：http://wenku.baidu.com/view/77cbd54f767f5acfa1c7cdda.html
GDB个人总结下载：
点击这里下载文件

参看：http://wiki.ubuntu.org.cn/index.php?title=%E7%94%A8GDB%E8%B0%83%E8%AF%95%E7%A8%8B%E5%BA%8F&variant=zh-cn
本站参考：
http://jackxiang.com/post/4014/
http://jackxiang.com/post/757/

使用 GDB 调试多进程程序：
http://www.ibm.com/developerworks/cn/linux/l-cn-gdbmp/
http://tieba.baidu.com/f?kz=874502809
http://blog.163.com/redhumor@126/blog/static/1955478420108192540752/ ]]> http://jackxiang.com/post//#blogcomment <user@domain.com> Thu, 01 Jan 1970 00:00:00 +0000 http://jackxiang.com/post//#blogcomment