
If a Gamecube game disc has the elf file available then it is possible that it will have debug information embedded inside it, the easiest way to check is to look at the size or run the strings command on it.

DOL file (short for dolphin) and the other is the ELF which is a standard format for Unix based systems. Gamecube game executable can come in a number of different formats, one is the standard. If you are interested in reverse engineering a Gamecube game, the first step is to find out if the game has its debug symbols available, this makes it much easier to reverse as all the functions will have nice friendly human readable names.

Nintendo Gamecube Games with Debug Symbols Edit on Github
