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Re: Debugging of embedded target applications

To: Daniel Jacobowitz <dan@debian.org>
Subject: Re: Debugging of embedded target applications
From: Jun Sun <jsun@mvista.com>
Date: Wed, 08 May 2002 11:16:22 -0700
Cc: Geoffrey Espin <espin@idiom.com>, "Siders, Keith" <keith_siders@toshibatv.com>, "Linux-Mips (E-mail)" <linux-mips@oss.sgi.com>
References: <7DF7BFDC95ECD411B4010090278A44CA379AA1@ATVX> <20020507221512.GA22326@nevyn.them.org> <20020507154427.D12509@idiom.com> <20020508014314.GA30243@nevyn.them.org> <20020507192523.A73748@idiom.com> <20020508023236.GA31840@nevyn.them.org>
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Daniel Jacobowitz wrote:

On Tue, May 07, 2002 at 07:25:23PM -0700, Geoffrey Espin wrote:

On Tue, May 07, 2002 at 09:43:14PM -0400, Daniel Jacobowitz wrote:

Does work it for kernel type debugging over *Ethernet*?
I see some docs saying "TCP/IP" connection... but does that
mean a special kind of network driver?  Or a gdbstub/agent
outside the kernel in a special monitor?

What do you mean by kernel type debugging?  It's not a kernel stub.  It
can debug user programs over TCP/IP or a serial line.

In traditional embedded RTOS land, "system-level debugging".
In the olden days one had to have BDM/JTAG hardware assist
to step thru truly arbitary bits of code, like interrupt handlers,
scheduler.

The original question was about using using a hardware debugger.
Clearly using gdb/gdbserver is for apps only, AFAIK.  Does one
bother with a h/w debugger for apps?  Using kgdb with some kind


Actually, yes, you can.  I believe at least the Abatron BDI can do
this.  Could be wrong, though.



I have used kgdb over JTAG.

Jun



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