I've previously used WinAVR and their port of gcc has an 'enhancement' in the avr-size which is option '-C' or '--format=avr' which also needs you to pass the chip type in '--mmcu=atmega328p' for example. This shows the total amount of flash required (ie code + data), and RAM (ie data + bss) and compares these against the abilities of the chip you have specified. This is very useful in build scripts to fail code that is too big to upload to the processor.
I'm trying to create a newer version of the AVR toolchain as WinAVR is now quite old (January 2010!) - but need to work around this issue. I'm not sure if it was functionality the WinAVR folk added themselves or whether it's a 'no longer supported' option in gcc or if it originates somewhere else! Anyone know?
