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List:       linux-arm-kernel
Subject:    Re: JTAG debugging (was RE: On TLB flushing)
From:       Marc Singer <elf () buici ! com>
Date:       2004-04-20 17:05:44
Message-ID: 20040420170544.GA21408 () buici ! com
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On Tue, Apr 20, 2004 at 09:53:03AM -0700, SCarter@Vetronix.com wrote:
> 
> Ah, pardon me, I didn't make it clear.  When I said "debugger software" I
> mean the software that talks over the JTAG probe we bought.  Only after lots
> of painful investigation of unexpected crashes did we get to the piece of
> news that hardware debugging on PXA involves some freaky parallel execution
> of the actual program and a simulation of it.  Gets nasty when turning on
> virtual memory - the simulator doesn't know enough to correctly trace
> execution into the new address space - even if you don't single-step it - so
> you need to hold its hand and manually enter the virtual address to return
> to.

Perhaps you need a better JTAG emulator.  I don't know anything about
your JTAG emulator.  You haven't even given it a name.  Everything you
write makes me think that for the $X you spent on it, that was $X too
much.  Look to google.


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