1. install ctag source from http://ctags.sourceforge.net/
tar xvf ctags-5.8.tar.gz
cd ctags-5.8
./configure
make && make install
2. apt-get install cscope3. Download taglist vim plugin / cscope vim plugin
    - taglist from http://vim-taglist.sourceforge.net/download.html
    - cscope from http://cscope.sourceforge.net/cscope_vim_tutorial.html
    cp taglist_45.zip /etc/vim/
    unzip taglist_45.zip /etc/vim/
    vim /etc/vim/vimrc
    # add " nnoremap <F12> :TlistToggle<CR>" into vimrc
    cp cscope_maps.vim /etc/vim/plugin/


root@:/etc/vim -> tree
├── doc
│   └── taglist.txt
├── plugin
│   ├── cscope_maps.vim
│   └── taglist.vim
├── vimrc
└── vimrc.tiny

Example test :
Download kernel source
    cd linux-2.6.38.6
    cscope -Rbkq # make a sql of source index
    vim drivers/input/mouse/synaptics.c
    #then , ctrl + w : open Taglist , you can use " ctrl + w " , jump between windows