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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug server/26804] gdbserver crash at <init_cacheinfo+22> when
 program has canary and is 32 bit.
Date: Tue, 19 Jan 2021 12:50:28 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26804

--- Comment #10 from Tom de Vries <vries at gcc dot gnu.org> ---
Created attachment 13132
  --> https://sourceware.org/bugzilla/attachment.cgi?id=3D13132&action=3Ded=
it
Tentative patch

(In reply to Markus Metzger from comment #8)
> This zero-extends all registers in the 64-bit regmap, not just those in t=
he
> 32-bit regmap that get collected later on.  We should rather preserve wha=
t's
> in the buffer unless we're intentionally overwriting it.  Should we remove
> the memset here and zero-extend the registers that we collect in the loop
> below?

Currently testing this approach.

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