From: Stefan Jumarea <stefanjumarea02@gmail.com>
To: Rich Felker <dalias@aerifal.cx>
Cc: musl@lists.openwall.com, Razvan Deaconescu <razvand@unikraft.io>,
Michalis Pappas <michalis@unikraft.io>
Subject: Re: [musl] Project Proposal MTE Support
Date: Thu, 20 Jul 2023 08:47:53 +0300 [thread overview]
Message-ID: <ZLjKibD8LW32VIAi@stefan-IdeaPad-5-15ARE05> (raw)
In-Reply-To: <20230720015122.GO4163@brightrain.aerifal.cx>
On Wed, Jul 19, 2023 at 09:51:22PM -0400, Rich Felker wrote:
> There is no immediate plan. Probably the first steps need to be
> figuring out some abstractions needed, particularly a way for the
> implementation to take tagged pointers from the caller and do the
> arithmetic to access partly out-of-band data (like the group header)
> with a different/zero tag. These should be able to collapse out to
> no-ops on archs without MTE, as well as be defined in a manner to work
> on other archs with comparable features (like the classic sparc prior
> art for this, if we ever get the sparc port added, or any future archs
> that add such a thing).
I see, that makes sense. I'll start working on it.
>
> I know there were past discussions on this and I may have some
> separate notes of my own from when mallocng was created, so I'll see
> what I can dig up that might be of use.
That would be great, thank you!
Stefan
next prev parent reply other threads:[~2023-07-20 5:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-19 7:37 Stefan Jumarea
2023-07-20 1:51 ` Rich Felker
2023-07-20 5:47 ` Stefan Jumarea [this message]
2023-07-20 13:03 ` Szabolcs Nagy
2023-07-20 19:02 ` Rich Felker
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