[Avr-eclipse-user] No source code when debugging using JTAG

[Lukáš Z. <luk...@gm...>]

Hi,

first I would like to thank all the people who are involved in the
development and community around the avr-eclipse. You have done a great
job porting AVR development to Linux world and this is very important to
me. :)

And here comes my question:

I set up avr-eclipse plugin 2.3.4.20100807PRD into Eclipse Indigo
release  20110615-0604 on Linux Ubuntu 10.10 64 bit
Everything seems to be working fine except JTAG debugging. I manually
start avarice server through the JTAG connection to the device
(ATmega32) using JTAG mk I cable clone - works perfectly on windows
using AVR Studio 4. Connection seems to be ok, signature loaded and
waiting for connections.

I prepared debugging configuration using avr-gdb settings from the wiki
page (slightly changed due to different wizards in indigo but
semantically should be the same). Set breakpoint at is set to "main".

When I start debugging, eclipse is properly connected to the avarice,
which communicates with AVR. Code doesn't break at main but runs. When I
break it, I can read registers, explore the memory and see the break
point in the disassembler window.

The problem:

I cannot see any code in the code window, just address into the program
memory. It corresponds correctly with the content of the disassembler
window. When I switch the debugging into the instruction mode, stepping
works fine. But in the disassembler window, code is not included, just
instructions. (in the screenshot on the wiki there are lines of code
included).

I suspected wrong settings of the source tab of the debug wizard, but my
simple testing program is located in the root folder of the project and
this folder cannot be added to the source lookup paths.

Code is compiled with -g3 switch set in the tool chain.

Do please anybody have an idea why this happens?
Can it be related to the version of the Eclipse?
Some bad settings?
Can it be related to the location of the source file being in the root
of project?

I just don't know and I spent few days testing variety of different
settings. I still suspect some wrong connection between the code and the
runtime position in the program memory because of wrong settings of the
project (or compiler).
I don't know if it is of any significance but debugging of the C code
for PC machine in the same Eclipse and workspace works fine.

Thank you for reading this long thing and also thanks for any answer.

Best

Lukas Zaruba