FW: GDB server configuration

FW: GDB server configuration

[Larry Osborn]

Hello All,

I'm new to gdb so I apologize in advance if these questions are lame.  I'm trying to connect a JTAG device to GDB. This device does not support either serial or tcp/ip so the remote connection won't work. The interface is actually PCI. I was wondering if the gdbserver would work. It is not clear to me from the documentation if the server has to run on the embedded target or on the host. My desire is to have the debugger run on a window host, connected to JTAG hardware, and then connected to a PowerPC target. If you can point me to what I should read or any tips on this subject would be very helpful.

Thanks,
Larry Osborn

Re: FW: GDB server configuration

[Daniel Jacobowitz]

On Fri, Aug 17, 2007 at 02:11:58PM -0500, Larry Osborn wrote:
> 
> Hello All,
> 
> I'm new to gdb so I apologize in advance if these questions are
> lame.  I'm trying to connect a JTAG device to GDB. This device does
> not support either serial or tcp/ip so the remote connection won't
> work. The interface is actually PCI. I was wondering if the
> gdbserver would work. It is not clear to me from the documentation
> if the server has to run on the embedded target or on the host. My

gdbserver is specifically for remote debugging of userspace programs
on Unix-like (or, now, Windows-like) systems.

> desire is to have the debugger run on a window host, connected to
> JTAG hardware, and then connected to a PowerPC target. If you can
> point me to what I should read or any tips on this subject would be
> very helpful.

You need a "stub" which translates from the JTAG device's interface to
GDB's remote protocol.  You'll have to check with your tools vendor or
JTAG vendor to see whether one exists; usually these are proprietary
applications, since vendors are not willing to publish specs for their
JTAG devices.  I know CodeSourcery's tools support a bunch of JTAG
units, but none which are PCI cards.

-- 
Daniel Jacobowitz
CodeSourcery