配置GDB以支持查看stl容器数据

1. 下载

 

2. #cat dbinit_stl_views-1.03.txt >> ~/.gdbinit

 

3. 若正处于gdb中，运行命令:

   (gdb) source ~/.gdbinit

 

4. 例如，如下代码：

bugging.cpp

#include <vector>
using namespace std;

int main()
{
        vector<int> vec;
        vec.push_back(2);
        vec.push_back(3);
        vec.push_back(4);
        return 0;
}

 

编译：

 

#g++ -o bugging -g bugging.cpp

gdb调试：

# gdb bugging
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-slackware-linux"...
(gdb) help pvector
Prints std::vector<T> information.
Syntax: pvector <vector> <idx1> <idx2>
Note: idx, idx1 and idx2 must be in acceptable range [0..<vector>.size()-1].
Examples:
pvector v - Prints vector content, size, capacity and T typedef
pvector v 0 - Prints element[idx] from vector
pvector v 1 2 - Prints elements in range [idx1..idx2] from vector
(gdb) break main
Breakpoint 1 at 0x80485c6: file bugging.cpp, line 6.
(gdb) run
Starting program: /root/learn/c++/bugging

Breakpoint 1, main () at bugging.cpp:6
6        vector<int> vec;
(gdb) n
7        vec.push_back(2);
(gdb)
8        vec.push_back(3);
(gdb) pvector
Prints std::vector<T> information.
Syntax: pvector <vector> <idx1> <idx2>
Note: idx, idx1 and idx2 must be in acceptable range [0..<vector>.size()-1].
Examples:
pvector v - Prints vector content, size, capacity and T typedef
pvector v 0 - Prints element[idx] from vector
pvector v 1 2 - Prints elements in range [idx1..idx2] from vector
(gdb) pvector vec
elem[0]: $1 = 2
Vector size = 1
Vector capacity = 1
Element type = int *
(gdb) n
9        vec.push_back(4);
(gdb)
10        return 0;
(gdb) pvector vec
elem[0]: $2 = 2
elem[1]: $3 = 3
elem[2]: $4 = 4
Vector size = 3
Vector capacity = 4
Element type = int *
(gdb)

5. 默认情况下gdb不能用[]查看stl容器的数据元素，提示如下错误：

(gdb) print vec[0]
One of the arguments you tried to pass to operator[] could not be converted to what the function wants.