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Re: [RFC PATCH 00/23] aarch64-gnu port

From: Florian Weimer
Subject: Re: [RFC PATCH 00/23] aarch64-gnu port
Date: Mon, 11 Mar 2024 17:10:08 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.3 (gnu/linux)

* Joseph Myers:

> On Wed, 3 Jan 2024, Sergey Bugaev wrote:
>> To build this, you need an aarch64-gnu toolchain (binutils, GCC, MIG),
>> and GNU Mach headers for AArch64. I have posted the patches for
>> binutils, GCC, and GNU Mach to the bug-hurd mailing list; no patches
>> are required to build aarch64-gnu-mig.
>> There is no AArch64 port of GNU Mach yet; I'm trying to get the ball
>> rolling by making this port of glibc. I have only added some AArch64
> I think the same principle applies for ports to new (architecture, Hurd) 
> pairs as for new (architecture, Linux) pairs: the relevant code needs to 
> be in upstream mainline of all components on which glibc build-depends 
> before the port can go into glibc (and thus before the symbol versions for 
> the port can be determined) - and at the point where it's ready to go in, 
> a corresponding build-many-glibcs.py entry should be added as part of the 
> patch series.  Parts of <https://sourceware.org/glibc/wiki/NewPorts> may 
> be applicable, though that's more oriented to the case where the 
> architecture support itself is entirely new.
> You can of course do refactors of existing files not specific to 
> aarch64-gnu, in preparation for the port, before then, to reduce the size 
> of the eventual patch series proposing adding the port to glibc.

I would like to stress what Joseph says here.  You don't need to
demonstrate actual usage or something like that, just follow the new
port process (upstreamed changes in the glibc build dependencies etc.).


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