How to display relative path while using ctag in vim

Question

I have a tags/cscope-file generated of the Linux Kernel with "make tags cscope".

Now, when I do:

vim -t tcp_ack

it shows:

Cscope tag: tcp_ack
   #   line  filename / context / line
   1    678  /home/christoph/workspace/linux/mptcp/drivers/net/ethernet/neterion/s2io.h <<tcp_ack>>
             __be32 tcp_ack;
   2     56  /home/christoph/workspace/linux/mptcp/include/linux/inet_lro.h <<tcp_ack>>
             __be32 tcp_ack;
   3   3292  /home/christoph/workspace/linux/mptcp/net/ipv4/tcp_input.c <<tcp_ack>>
             static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
Type number and <Enter> (empty cancels): 

As you can see, it displays the whole path to the file. However, I would like it to show only the relative path to the file. Something like:

Cscope tag: tcp_ack
   #   line  filename / context / line
   1    678  drivers/net/ethernet/neterion/s2io.h <<tcp_ack>>
             __be32 tcp_ack;
   2     56  include/linux/inet_lro.h <<tcp_ack>>
             __be32 tcp_ack;
   3   3292  net/ipv4/tcp_input.c <<tcp_ack>>
             static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
Type number and <Enter> (empty cancels): 

How can I achieve this?

Thanks for your help!

Answer 1

This is not really a display issue in the sense that Vim displays the path as it is recorded by the indexer.

If you want relative filenames in your tags file (and thus in Vim's list), you must explicitely tell ctags to do so by passing it the --tag-relative=yes option.

As far as I know, cscope uses relative paths by default.