GDB的自定义命令非常有用,通过自定义命令,直接操作容器中的数据,可以方便的查看STL容器中的数据。
这个链接dbinit_stl_views是Dan C Marinescu写的查看STL容器的自定义命令(如果不适合你的STL版本的话,可以自行修改)。把它添加到你的.gdbinit中,就可以方便的查看STL容器了。它提供了查看vector,list,map,multimap,set,multiset,deque,stack,queue,priority_queue,bitset,string,widestring等对象的方法,非常好用!
1. 下载 http://www.yolinux.com/TUTORIALS/src/dbinit_stl_views-1.03.txt
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
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#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:
[cpp] view plaincopy
#g++ -o bugging -g bugging.cppgdb调试:.
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# 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:
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<span style="font-size:16px;">(gdb) print vec[0] One of the arguments you tried to pass to operator[] could not be converted to what the function wants.</span>
一些常用内置的命令
Data type GDB command std::vector<T> pvector stl_variable std::list<T> plist stl_variable T std::map<T,T> pmap stl_variable std::multimap<T,T> pmap stl_variable std::set<T> pset stl_variable T std::multiset<T> pset stl_variable std::deque<T> pdequeue stl_variable std::stack<T> pstack stl_variable std::queue<T> pqueue stl_variable std::priority_queue<T> ppqueue stl_variable std::bitset<n>td> pbitset stl_variable std::string pstring stl_variable
std::widestring pwstring stl_variable
dbinit_stl_views-1.03.txt 下载地址 :http://download.csdn.net/detail/dearwind153/9562875
转自:http://blog.csdn.net/blade2001/article/details/5290329