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Date: Wed, 26 Jul 2023 10:02:24 +0900
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Subject: Re: [PATCH v4 1/1] RISC-V: Add platform property/capability
 extensions
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To: Palmer Dabbelt <palmer@dabbelt.com>
Cc: binutils@sourceware.org
References: <mhng-1edc0335-db7a-4a45-a972-ff69c3726428@palmer-ri-x1c9a>
From: Tsukasa OI <research_trasio@irq.a4lg.com>
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On 2023/07/26 9:47, Palmer Dabbelt wrote:
> IMO we want to stay away from these extensions that are just defined by
> a single phrase in the spec.  We're still digging out from the first
> rounds of changed specs, trying to start supporting stuff that's not
> even been defined is going to just make for another round of headaches.

I see.  I don't completely agree but it makes sense ('Zkt' for example,
has a dedicated section to describe this extension).

I think there's not so much room for improvements for many of "single
phrase" extensions (on 'Ssu64xl', I requested to clarify some details
before the ratification; 'Zic64b' describes itself completely and adding
more words won't work; definition of 'Zicclsm' on the other hand, might
be better to be a bit stricter).  However, I see they are not so urgent.

As long as this patch set is considered as a prerequisite of further
"RISC-V Profiles" support (e.g. "-march=rva..."), I can wait.

Thanks,
Tsukasa