From: Fangrui Song <i@maskray.me>
To: musl@lists.openwall.com
Cc: William Roberts <bill.c.roberts@gmail.com>,
Anton Korobeynikov <anton@korobeynikov.info>
Subject: Re: [musl] PAC/BTI Support on aarch64
Date: Mon, 19 Feb 2024 15:54:58 -0800 [thread overview]
Message-ID: <DS7PR12MB5765FB2660308EC5EAA9336FCB502@DS7PR12MB5765.namprd12.prod.outlook.com> (raw)
In-Reply-To: <20240212184236.GZ4163@brightrain.aerifal.cx>
On Mon, Feb 12, 2024 at 10:42 AM Rich Felker <dalias@libc.org> wrote:
>
> On Mon, Feb 12, 2024 at 10:38:50AM -0600, William Roberts wrote:
> > Hello,
> >
> > I was just wondering if there was any work being done to support PAC
> > and BTI in aarch64? I could add support but didn't want to duplicate
> > the work.
>
> I'm not aware of any active work on this, but before writing a full
> implementation, it would be really helpful to start with a basic
> proposal for the scope of changes needed to make it work to assess
> whether these are managable and acceptable cost.
>
> Rich
Cc +Anton (other messages of this thread can be found at
https://www.openwall.com/lists/musl/2024/02/12/ ).
Per https://discourse.llvm.org/t/llvm-pointer-authentication-sync-ups/62661/23
and an lld/ELF patch
* https://github.com/access-softek/llvm-project/commits/elf-pauth
* https://github.com/access-softek/musl/tree/dkovalev/pauth-code-drop
contains a prototype.
> We verified that LLVM testsuite compiled with pauth successfully passes on pauth-enabled AArch64 board.
https://www.openwall.com/lists/musl/2024/02/12/
It looks like there will be an LLVM Pointer Authentication discussion
in a few hours:
https://calendar.google.com/calendar/u/0/embed?src=calendar@llvm.org
next prev parent reply other threads:[~2024-02-20 0:02 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-12 16:38 William Roberts
2024-02-12 18:42 ` Rich Felker
2024-02-12 21:25 ` William Roberts
2024-02-12 21:34 ` enh
2024-02-12 22:46 ` Rich Felker
2024-02-12 23:05 ` enh
2024-02-12 23:18 ` William Roberts
2024-02-13 2:08 ` Rich Felker
2024-02-13 14:47 ` William Roberts
2024-02-13 17:51 ` Markus Wichmann
2024-02-14 2:19 ` Rich Felker
2024-02-14 3:19 ` William Roberts
2024-02-14 4:44 ` Markus Wichmann
2024-02-14 13:32 ` Thorsten Glaser
2024-02-14 14:03 ` Rich Felker
2024-02-14 14:12 ` Thorsten Glaser
2024-02-15 13:29 ` Stefan O'Rear
2024-02-15 14:06 ` Rich Felker
2024-03-02 14:33 ` Szabolcs Nagy
2024-03-02 14:45 ` Rich Felker
2024-02-15 0:03 ` Szabolcs Nagy
2024-02-15 0:22 ` enh
2024-02-15 9:18 ` Szabolcs Nagy
2024-02-19 23:54 ` Fangrui Song [this message]
[not found] ` <DS7PR12MB57659BC5D5536574D1B91D26CB502@DS7PR12MB5765.namprd12.prod.outlook.com>
2024-02-20 6:21 ` Anton Korobeynikov
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