While in ~/src/emacs/trunk/src, do

        M-! cscope -f cscope.out -L -0 interval_block

You will see the following in *Shell Command Output*.  Put that in
compilation mode and navigate through the search results the usual way.

--8<---------------cut here---------------start------------->8---
alloc.c <global> 1150 struct interval_block
alloc.c <global> 1154 struct interval_block *next;
alloc.c <global> 1160 static struct interval_block *interval_block;
alloc.c INTERVAL_BLOCK_SIZE 1145 ((1020 - sizeof (struct interval_block *)) / sizeof (struct interval))
alloc.c make_interval 1193 struct interval_block *newi
alloc.c make_interval 1196 newi->next = interval_block;
alloc.c make_interval 1197 interval_block = newi;
alloc.c make_interval 1201 val = &interval_block->intervals[interval_block_index++];
alloc.c gc_sweep 6227 register struct interval_block *iblk;
alloc.c gc_sweep 6228 struct interval_block **iprev = &interval_block;
alloc.c gc_sweep 6234 for (iblk = interval_block; iblk; iblk = *iprev)
--8<---------------cut here---------------end--------------->8---

In GNU Emacs 24.3.50.1 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2013-05-20 on debian-6.05
Bzr revision: 112643 mituharu@math.s.chiba-u.ac.jp-20130520031520-pq1c1qjertan94kq
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
Important settings:
  value of $LANG: en_IN
  locale-coding-system: iso-latin-1-unix
  default enable-multibyte-characters: t

Major mode: Fundamental