Setting ASF to disable toolchain optimization

I hate to spend time trying to remember things that I already did in the past, but all times that I didn’t document it I always spend time figuring it out.

When compiling an ELF binary in the Atmel ASF studio I need to disable GCC optimization in order to get all debug info from GDB.

To disable Toolchain optimization in the ASF:

Project ->
        YourProjectName Properties... ->
                Toolchain ->
                        ARM/GNU C Compiler ->
                                Optimization ->
                                        Optimization Level = None (-O0)