debug infos in assembler files

I want to have debug infos in my assembler output files.

I tried with
avr-gcc -Wa,-gstabs,-D -xassembler-with-cpp -mmcu=atmega32 -nostdlib $< -o eins

But if I use:
avr-gdb eins
(gdb) list
1       /tmp/ccUMCsnQ.s: No such file or directory.


And which args I have to use if I want a two step assembly/link? Maybe there is something more different.



gcc version: 4.8.2
gdb version: 7.6.1


Thanks
 Klaus