From mboxrd@z Thu Jan 1 00:00:00 1970 From: George G. Davis Date: Wed, 7 Jan 2004 10:50:44 -0500 Subject: [U-Boot-Users] U-Boot on MPC8280 In-Reply-To: <0E8A20F2EB7BD7119C1F00508BB333780E5D7B@tmservermail02.t-modus.nec.co.uk> References: <0E8A20F2EB7BD7119C1F00508BB333780E5D7B@tmservermail02.t-modus.nec.co.uk> Message-ID: <20040107155044.GA5255@mvista.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Wed, Jan 07, 2004 at 03:24:46PM -0000, David Aldrich wrote: > Hi Wolfgang > > May I ask one further question re. the BDI2000? An article on the > internet states: > > "You might be wondering why the BDI2000 only works with kernel-mode code > and not user-land application code. The technical details are beyond the > scope of this AppNote. The 10,000 foot answer is that while the BDI2000 > can work with the MMU enabled, it can only work with a single continuous > memory map. Kernel-mode code exists in a single continuous memory map, > which is disjoint from all of the user-land process memory maps. As an > example of the usefulness of this tool in production environments, the > PPC porting engineers at Monta Vista Software use the BDI2000 > extensively for kernel bring-up and device driver debug" > > Is it true that the BDI is not suitable for user app debug? Is this a > problem in practice? My US$0.02... I'm not personally aware of the issues using the BDI2000 to debug user space code. But in practice you do not need a hardware debugger to debug user space code. Just use gdb and/or gdbserver to debug your user space code. -- Regards, George > > Thanks > > David > > > ------------------------------------------------------- > This SF.net email is sponsored by: IBM Linux Tutorials. > Become an expert in LINUX or just sharpen your skills. Sign up for IBM's > Free Linux Tutorials. Learn everything from the bash shell to sys admin. > Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users at lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users