I am using CodeWarrior, but didn't find how to activate listing file generation for C sources. The "Internal Flash settings panel" let me only activate listing file generation for Assembler files: EPPC Assembler => "Generate Listing File".
I read somewhere on the forum one should use decoder.exe and disassemble the *.elf file to generate listing files. Didn't try it yet. But isn't there another way like an option somewhere in the settings panel?