Re: [PATCH] Add native windows on arm64 support

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Niyas Sait <niyas(dot)sait(at)linaro(dot)org>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Julien Rouhaud <rjuju123(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: [PATCH] Add native windows on arm64 support
Date: 2022-05-10 01:01:55
Message-ID: Ynm5g2152/yKc/0o@paquier.xyz
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On Mon, May 09, 2022 at 12:44:22PM +0100, Niyas Sait wrote:
> Microsoft updated documentation [1] and clarified that ASLR cannot be
> disabled for Arm64 targets.
>
> Because ASLR can't be disabled on ARM, ARM64, or ARM64EC architectures,
> > /DYNAMICBASE:NO isn't supported for these targets.

Better than nothing, I guess, though this does not stand as a reason
explaining why this choice has been made. And it looks like we will
never know. We are going to need more advanced testing to check that
DYNAMICBASE is stable enough if we begin to enable it. Perhaps we
should really look at that for all the build targets we currently
support rather than just ARM, for the most modern Win32 environments
if we are going to cut support for most of the oldest releases..
--
Michael

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