From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from oss.sgi.com (localhost [127.0.0.1]) by oss.sgi.com (8.12.3/8.12.3) with ESMTP id g482O5wJ018714 for ; Tue, 7 May 2002 19:24:05 -0700 Received: (from majordomo@localhost) by oss.sgi.com (8.12.3/8.12.3/Submit) id g482O5AP018713 for linux-mips-outgoing; Tue, 7 May 2002 19:24:05 -0700 X-Authentication-Warning: oss.sgi.com: majordomo set sender to owner-linux-mips@oss.sgi.com using -f Received: from idiom.com (espin@idiom.com [216.240.32.1]) by oss.sgi.com (8.12.3/8.12.3) with SMTP id g482O1wJ018710 for ; Tue, 7 May 2002 19:24:01 -0700 Received: (from espin@localhost) by idiom.com (8.9.3/8.9.3) id TAA85580; Tue, 7 May 2002 19:25:23 -0700 (PDT) Date: Tue, 7 May 2002 19:25:23 -0700 From: Geoffrey Espin To: Daniel Jacobowitz Cc: "Siders, Keith" , "Linux-Mips (E-mail)" Subject: Re: Debugging of embedded target applications Message-ID: <20020507192523.A73748@idiom.com> References: <7DF7BFDC95ECD411B4010090278A44CA379AA1@ATVX> <20020507221512.GA22326@nevyn.them.org> <20020507154427.D12509@idiom.com> <20020508014314.GA30243@nevyn.them.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.1i In-Reply-To: <20020508014314.GA30243@nevyn.them.org>; from Daniel Jacobowitz on Tue, May 07, 2002 at 09:43:14PM -0400 Sender: owner-linux-mips@oss.sgi.com Precedence: bulk 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 of remote debug-agent would be a "system level debugger", a s/w solution to a traditional hardware only debug aid. At this time kind of pointless, as its painful to setup and JTAG debuggers are so cheap (for mainline CPUs). Geoff -- Geoffrey Espin espin@idiom.com --