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bug#43668: Daemon tries to build GNU/Hurd derivations on GNU/Linux
From: |
Ludovic Courtès |
Subject: |
bug#43668: Daemon tries to build GNU/Hurd derivations on GNU/Linux |
Date: |
Thu, 01 Oct 2020 12:51:19 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) |
Hi,
Jan Nieuwenhuizen <janneke@gnu.org> skribis:
>> Yeah, I think we’ll have to do this hack (we’re not going to parse ELF
>> files and all to determine whether to call ‘execve’.)
>
> Ah, we're C++; I was thinking Guile and "we surely have" an ELF library.
> That's allright then. Let's have this workaround.
Yeah. Even with a library, it doesn’t sound right to parse files
beforehand. I think it’s up to the kernel to make the relevant check,
but perhaps there are good reasons why this isn’t happening here.
Anyway, pushed as 9556ac498fd648147ad7d3b52ec86202d0a8e171!
>> (Besides, it would be interesting to understand how the libc/Hurd
>> startup code ends up segfaulting on GNU/Linux.)
>
> Hmm...are you saying something like "it could run until it wants to RCP
> Mach or Hurd?" Might it "just load" shared libraries...
Yeah I would expect it to run code up to the first Mach syscall but here
it segfaults so maybe it crashes earlier.
Ludo’.
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