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Re: GNU poke 2.90.0 on Linux/sparc64

From: Luca Saiu
Subject: Re: GNU poke 2.90.0 on Linux/sparc64
Date: Tue, 24 Jan 2023 19:36:25 +0100
User-agent: Gnus (Gnus v5.13), GNU Emacs 29.0.50, x86_64-pc-linux-gnu

On 2023-01-24 at 11:43 +0100, Jose E. Marchesi wrote:

> This may be the "far jump" jitter problem that happens in RISC
> architectures... maybe jitter should disable no-threading in sparc for
> the time being?

Yes, definitely.

So let us switch to a whitelist approach: the only architectures *not*
needing far branches are:
- i386 (32-bit displacement but currently not supported anyway
        for no-threading);
- x86_64 with some luck (32-bit displacements which will be enough
  in practice);
- m68k -- 32-bit displacements, working well form me but with
          no-threading poke being broken for unknown reasons, maybe
          the same as powerpc32.

A little sad.  Making the temporary change.

Luca Saiu
* My personal web site:  https://ageinghacker.net
* GNU Jitter:            https://www.gnu.org/software/jitter
* GNU epsilon:           https://www.gnu.org/software/epsilon

I support everyone's freedom of mocking any opinion or belief, no
matter how deeply held, with open disrespect and the same unrelented
enthusiasm of a toddler who has just learned the word "poo".

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