From: Tim Newsome <tim@sifive.com>
To: duane@duaneellis.com
Cc: Yao Qi <qiyaoltc@gmail.com>, gdb <gdb@sourceware.org>
Subject: Re: can target code change architecture setting?
Date: Mon, 10 Oct 2016 19:46:00 -0000 [thread overview]
Message-ID: <CAGDihendk5wTurD+4tesEePK09f3eSxpKZ=0BmDq1dEoaFOiZA@mail.gmail.com> (raw)
In-Reply-To: <20161010094844.5c1bb9f86d671edec44bb378f25c04cc.aef8a9655c.wbe@email03.godaddy.com>
On Mon, Oct 10, 2016 at 9:48 AM, <duane@duaneellis.com> wrote:
> Question #1 Is this dual mode possible in RISCV?
Not currently, and I don't think there will be a dual mode.
There was a proposal that should allow 32-bit code to just work on
64-bit architectures, but I'm pretty sure it was not by adding a
different mode. It sounded more like the MIPS model where the ISA is
cleverly defined to not care. But unfortunately I can't find the
e-mail thread right now.
> Question #2 - How should the remote debugger respond to GDB?
For RISCV, what I would want is for it to tell GDB that it's running
on 64-bit hardware, because it is. I see no reason to hide from the
user what's actually happening in the hardware.
Tim
next prev parent reply other threads:[~2016-10-10 19:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-10 16:48 duane
2016-10-10 19:46 ` Tim Newsome [this message]
2016-10-11 11:48 ` Yao Qi
2016-10-11 14:30 ` Duane Ellis
2016-11-03 19:47 ` Doug Evans
-- strict thread matches above, loose matches on Subject: below --
2016-10-07 17:38 Tim Newsome
2016-10-10 9:26 ` Yao Qi
2016-10-10 15:39 ` Tim Newsome
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