将VIM打造成一个可视化的调试器

将VIM打造成一个可视化的调试器,有3个选项,

  • vimGDB
  • clewn
  • pyClewn

 

第一个方法,太过繁琐,要求重新编译VIM,好处就是支持终端VIM和gVIM。第二个好处是不需要重新安装VIM,缺点是只支持gVIM;第三个继承了前两个的优点,

  • 不需要重新编译VIM
  • VIM和gVIM均支持

前2个使用c语言,第3个是使用python编写。

下面给一个全面的3方法的比较:

  vimGdb clewn pyclewn
platform unix unix

all unix platforms supported by python – requires GNU gdb from macports on Mac Os X

Windows (python 3 only)

language C C

python 2.4 and above

python 3

C language for the pdb-clone python extension module, _bdb

vim mode vim in a terminal, gvim gvim gvim and vim in a terminal (vim 7.3 or above required)
vim interface a vim patch a standalone program connected to gvim with a netbeans socket

a standalone program connected to vim with a netbeans socket

pyclewn may be started from within vim since vim 7.3

vim version a different patch for each vim version vim 6.3 and above vim 7.0 and above
debuggers gdb gdb gdb, pdb
gdb features  
  • watched variables
  • project file
  • tight integration with vim
  • gdb/mi interface
  • asynchronous gdb commands
  • watched variables
  • project file
pdb features    
  • interrupt the debuggee
  • attach to a running python process
  • the threadstack command

 

是英文,大家凑乎着看吧。

 

接下来下载安装包:

http://sourceforge.net/projects/pyclewn/

 

然后安装:

tar xzf pyclewn-1.11.py3.tar.gz
cd pyclewn-1.11.py3
python setup.py install --force

第3条命令是有问题的,这就是为什么我把它标红的缘故。上面的三条的命令是官方提供的。
因为上面的安装是默认的编辑器是gVIM而不是VIM,而我们在本文中是要配置VIM的调试环境,因此我们的环境只安装了VIM,而没有安装gVIM,当我们执行第3条命令就会报错。第3条命令应该为:

su root

export EDITOR=/usr/bin/vim

exit

sudo python setup.py install –force

 

安装成功后,你执行pyclewn,就会打开一个空VIM窗口,表示安装成功。

获取官方的帮助,包括启动和使用pyclewn.

http://pyclewn.sourceforge.net/_static/pyclewn.html

 

在VIM中可以使用

:help pyclewn

获取pyclewn的帮助。

 

在VIM调试:

我们以一个main.cpp 这个文件生成console可执行程序:

vim main.cpp

编辑完成后退出vim

g++ -g main.cpp -o console

vim main.cpp

然后执行命令:

:Pyclewn

注意是大写的P

然后会看到:

Running nbstart, <C-C> to interrupt.
..
Creation of vim script file "/tmp/viMp7ww/0": OK.
The netbeans socket is connected.

Press ENTER or type command to continue

这个表示pyclewn已经和netbeans socket建立了链接,那么netbeans是什么呢?它是VIM自带的gdb的调试接口。

然后按回车,

接着执行

:Cfile console

注意是大写的C

就会发现窗口自动被分成上个2个,上面是调试窗口,下面是代码窗口,pyclewn自定义很多快捷键,可以使用:

:Cmapkeys

还是大写的C,C表示是pyclewn的命令。

使用

:Cbreak 6

来设置断点,这里将断点设置在第6行,然后

shift+R

开始运行,

ctrl+N

单步执行。

:Cdbgvar

答应变量名

还有其他的命令:

    *|Ccwindow|       opens a vim quickfix window holding the list of the
                      breakpoints with their current state; the quickfix
                      window allows moving directly to any breakpoint
                      (requires the vim|+quickfix|feature)

    *|Cdbgvar|       add a watched variable or expression to the
                    (clewn)_dbgvar buffer

    *|Cdelvar|       delete a watched variable from the (clewn)_dbgvar buffer

    * Cdumprepr      print on the console pyclewn internal structures that
                     may be used for debugging pyclewn

    *|Cfoldvar|      collapse/expand the members of a watched structure or
                     class instance

    * Chelp          print on the console, help on the pyclewn specific
                     commands (those on this list) in addition to the help on
                     the debugger commands
                                                    *inferiortty*
    * Cinferiortty  spawn the controlling terminal (default xterm) of the
                    debuggee and sets accordingly gdb 'inferior-tty' variable
                    and the TERM environment variable; this command  MUST be
                    issued BEFORE starting the inferior.

    * Cloglevel      print or set the log level dynamically from inside Vim

    *|Cmapkeys|      map pyclewn keys

    *|Cproject|      save the current gdb settings to a project file

    *|Csetfmtvar|    set the output format of the value of a watched variable

    * Csigint        send a <C-C> character to the debugger to interrupt the
                     running program that is being debugged; only with gdb,
                     and when pyclewn and gdb communicate over a pseudo
                     terminal, which means on unix but not on Windows;
                     on Windows, to interrupt the debuggee, one must type
                     <C-C> in the console that is popped by gdb on debuggee
                     start up

 

详情请参考:

http://pyclewn.sourceforge.net/_static/pyclewn.html

 

这里截个屏

 

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