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From: Max Filippov <jcmvbkbc@gmail.com>
To: Maxim Grigoriev <maxim2405@gmail.com>
Cc: gdb@sourceware.org, Marc Gauthier <marc@tensilica.com>
Subject: Re: xtensa: reading privileged special registers
Date: Mon, 18 Jul 2011 08:20:00 -0000	[thread overview]
Message-ID: <CAMo8BfK8_7Li3PQQTMNEMqyxYtiRRL6rzFdtVVvBe=5RuQvfxg@mail.gmail.com> (raw)
In-Reply-To: <CAC3St3DkgTP_bAbpdSh6n3bVivik1tieUopy-jd-yNrEyE=C1A@mail.gmail.com>

> Please, help us to precisely identify what exactly do you experience
> by answering some questions:
> 1) Did you apply a source overlay for your specific hardware ?

Yes, I have applied publicly available dc232b overlay. Although the
code that returns zeros for privileged SRs is not overlay-specific.

> 2) What Xtensa processor do you work with ( if it's not a secret ) ?
>     What privileged registers do you have problems with ?

It is not a processor, it is qemu-based ISS that I've been developing.
It emulates dc232b.
I was mostly interested in $ccount/$ccompare.
I started to dig here because although I've implemented access to
these registers in gdbstub, I couldn't make gdb to query them.

-- 
Thanks.
-- Max


      parent reply	other threads:[~2011-07-18  8:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-17 20:29 Max Filippov
2011-07-18  1:12 ` Maxim Grigoriev
     [not found] ` <CAC3St3DkgTP_bAbpdSh6n3bVivik1tieUopy-jd-yNrEyE=C1A@mail.gmail.com>
2011-07-18  2:00   ` Marc Gauthier
2011-07-18  8:38     ` Max Filippov
2011-07-18  8:20   ` Max Filippov [this message]

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