Where do I find cpp source?

I want to use 'avr-objdump' for example to display 'blink.cpp.elf' I use 'arduino-1.0' installed on Ubuntu rel 10.04. Is 'blink.cpp.elf' generated automatically when the code is compiled? and if so where is it located?

Thank you for help.

yes, but you have to hit compile and not upload /tmp/build{numbers}

You could find exactly the directory by pressing ctrl-comma and makeing compiling verbose; when you compile it'll have that directory everywhere.