Hello Seok Joo,
FYI - there is a utility that comes with the compiler (located in the same directory as the compiler binaries) called ofd (filename is ofd2000.exe for C2000). This utility will read the symbol information of an *.out file and output information on it. The good thing about this is that it works for both COFF and ELF output. You can also output the information to xml format for easy parsing. You may want to take a look at this utility to supplement your work. My colleague has generated some cool perl scripts that parse this information to generate a variety of reports. See the below for more information:
http://processors.wiki.ti.com/index.php/Code_Generation_Tools_XML_Processing_Scripts
ki