sun compiler and gdb

[Tomasz Grobelny <tomasz@grobelny.oswiecenia.net>]

Hi all,
Should it be possible to debug C++ programs compiled using sun compiler
using GDB? If so which debug format should I use? Which versions of the
compiler/gdb support such a scenario? Currently the situation looks like
this (which does not look very promising):

> /opt/solstudio12.2/bin/CC -V
CC: Sun C++ 5.11 SunOS_i386 2010/08/13
usage: CC [ options ] files.  Use 'CC -flags' for details
> /opt/solstudio12.2/bin/CC -g -xdebugformat=dwarf test.cpp
> gdb -q ./a.out
Reading symbols from /full/path/to/my/a.out...done.
(gdb) break fun
Dwarf Error: Cannot find DIE at 0x0 referenced from DIE at 0x13b33 [in
module /full/path/to/my/a.out]
(gdb) break main
Dwarf Error: Cannot find DIE at 0x0 referenced from DIE at 0x13b33 [in
module /full/path/to/my/a.out]
(gdb) run
Starting program: /full/path/to/my/a.out
[Thread debugging using libthread_db enabled]
hello world
[Inferior 1 (process 9412    ) exited normally]
(gdb) quit
> uname -a
SunOS solac1 5.10 Generic_137138-09 i86pc i386 i86pc
> 

gdb version is 7.4.1
Any ideas what is wrong here?
-- 
Regards,
Tomasz Grobelny