[Qemu-devel] Using GDB with Qemu : No Symbol Table?

[Atoosah <atoosaah@gmail.com>]

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Hi

Thank you for your help, but I think my question was misunderstood.

Debugging the kernel is not my goal. Instead, I want to debug qemu itself.
i.e. I want to be able to add watchpoints/breakpoints to qemu source code.
How do I compile Qemu to enable the symbol table?

My difficulty is that I need to be able to make install my_qemu (i.e. the
installed qemu version). Correct me if I'm wrong, but the -s -S options are
necessary if the goal is debugging the kernel. Is there a patch available,
such as the one provided in
http://www.h7.dion.ne.jp/~qemu-win/DebuggingTips-en.html/ (which seems to be
a rather old link)?

Thanks again.

On Wed, Jun 25, 2008 at 11:41 PM, Atoosah <atoosaah@gmail.com> wrote:
> $gdb vmlinux
> (gdb) target remote localhost:1234
> Remote debuggin using localhost:1234
> 0x0000fff0 in ?? ()
> (gdb) break main
> No symbol table is loaded. Use the "file" command.
> (gdb) c
> Continuing.

try to compile your kernel with CONFIG_DEBUG_INFO=y and
CONFIG_FRAME_POINTER=y. Both will enable gdb to easily resolve symbol
names into addresses and tracking down function call chain in stack
frame.

regards,

Mulyadi.

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