How to create a symbol file

I'm try to debug RBL in DM6446 in ROM to find out why it cannot run UBL in NAND. It's difficult to read disassemble code without symbols.

I plan to read disassemble codes step by step, and add symbols for those I understood. Then I need to create symbol file manually.

I seached the help of CCSv5, and found:

"The symbol file can be a standard COFF output file (*.out) or a specific symbol file obtained during the build process."

How to create a symbol file during the build process? For example TI compiler arm 5.0.1. I tried armabs.exe, but abs files cannot be loaded as symbol file.

Which document describe the format of symbol files?

Any suggestions about how to read disassemble code are wellcome!

Best Regards,

Zhang Jianjun