How can I get an assembly language listing of my Arduino Sketches on Windows?

Question

I would like to be able to see an assembly language listing of my Arduino sketches. How can I achieve this?

Update: I am running the Arduino Software on a Windows machine.

Answer 1

One way to do this is to use avr-objdump on the .elf file created by the build. For example, on OS X I can do this:

$ cd ~/arduino-0015/examples/Digital/Blink/applet
$ avr-objdump -d Blink.elf

(Your path on Windows may be different, obviously.) This produces a disassembly of the code, part of which will look something like this:

0000013a <main>:
 13a:   0e 94 3e 01     call    0x27c <init>
 13e:   0e 94 97 00     call    0x12e <setup>
 142:   0e 94 80 00     call    0x100 <loop>
 146:   fd cf           rjmp    .-6             ; 0x142 <main+0x8>

Answer 2

If you are using Linux, you can follow this tutorial on how to compile for the Arduino without the IDE.

Once you do that, you can get an assembly listing by running gcc with the -s flag.