How to view the symbolic for the files of *.s in boot loader

From: bird (bird_at_sparc20.be.cycu.edu.tw)
Date: 03/26/04 

Date: Fri, 26 Mar 2004 10:36:41 +0800

Dear all:
I am debugging my EBoot on my platform and I want to trace the code by
source level.
Have any body know is there any instrunction or compile command to gerenate
the symbolic table when use the armasm.exe to compile my code?!
Thanks ....