Remote Debugging failed to list the Source code on SA-1110

[nagaraja]

Hi All,
 I am running  gdbserver (build natively for arm from
gdb+dejagnu20020419) on target (SA-1110)and the gdb-5.1
 cross-debuger on host(build with the configure option ./configure
--target=arm-linux --host=-586-pc-linux-gnu ).

To debug hello program on target machine I am uing minicom .
On target  running:

./gdbserver /dev/ttySA0 hello foo.txt

 on host running:

. /arm-linux-gdb hello
 (gdb) target remote /dev/ttys0
(gdb) b main
 (gdb) c

 I am able to debug small programs,putting break point at  main is
working,I can see the source code as well.
If I use  big program of about,26k  setting break points and printing
the values of variable works fine
But..........I could't able to see the sorce code of INCLUDE files,not
even source code of pragram having main function.

Am I missing any thing here,any help will be greatly appriciated.