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Date: Sun, 25 Feb 2024 21:16:04 -0500
From: Rich Felker <dalias@...c.org>
To: "Venkata Ramanaiah Nalamothu (QUIC)" <quic_vnalamot@...cinc.com>
Cc: "musl@...ts.openwall.com" <musl@...ts.openwall.com>
Subject: Re: RISC-V 32bit port in MUSL upstream
On Wed, Nov 08, 2023 at 03:00:09PM +0000, Venkata Ramanaiah Nalamothu (QUIC) wrote:
> Ping.
I believe this is actually close to ready-to-merge. I just pushed what
I think was the last missing prerequisite patch:
https://git.musl-libc.org/cgit/musl/commit/?id=19563e1850808af216b1b84263bb7e83cccce506
If the riscv32 port builds and works cleanly now with no further
changes to non-arch-specific code, I think it can be upstreamed now.
I'll try to take a look at this in the next couple days.
Rich
> -----Original Message-----
> From: Venkata Ramanaiah Nalamothu (QUIC)
> Sent: Thursday, October 5, 2023 8:54 AM
> To: musl@...ts.openwall.com
> Subject: RE: [musl] RISC-V 32bit port in MUSL upstream
>
> Looks like that has changed and the ABI is being considered stable, otherwise GLIBC upstream wouldn't have accepted the RISC-V 32bit port, which is available since 2021 in GLIBC upstream.
> As per [1],
> * Support for the RISC-V ISA running on Linux has been expanded to run on 32-bit hardware. This is supported for the following ISA and ABI pairs:
> - rv32imac ilp32
> - rv32imafdc ilp32
> - rv32imafdc ilp32d
> The 32-bit RISC-V port requires at least Linux 5.4, GCC 7.1 and binutils 2.28.
>
> Regards,
> Ram Nalamothu
>
> [1] https://sourceware.org/pipermail/libc-alpha/2021-February/122207.html
>
> P.S: Apologies for the repost, the previous response was confusing because of the incorrect formatting.
>
> -----Original Message-----
> From: Markus Wichmann <nullplan@....net>
> Sent: Friday, September 29, 2023 8:13 PM
> To: musl@...ts.openwall.com
> Subject: Re: [musl] RISC-V 32bit port in MUSL upstream
>
> WARNING: This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.
>
> Am Thu, Sep 28, 2023 at 04:39:37AM +0000 schrieb Venkata Ramanaiah Nalamothu (QUIC):
> > Thank you very much for sharing the patch set/development branch.
> >
> > Looking at your github tree commit history, it seems the tree is actively maintained.
> > May I know what is stopping from pushing these changes into MUSL community version?
> > Were there any technical challenges or someone just need to find time to work with the community to get the changes reviewed/merged?
>
> According to [0], main issue for Rich was that it was not a stable ABI yet back in 2020. Has that changed yet?
>
> Ciao,
> Markus
>
> [0] https://www.openwall.com/lists/musl/2020/03/12/2
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