* binfmt_misc [not found] <87msrh2glr.fsf@qq.com> @ 2024-03-02 7:56 ` Z572 2024-03-17 17:31 ` binfmt_misc Ludovic Courtès 0 siblings, 1 reply; 2+ messages in thread From: Z572 @ 2024-03-02 7:56 UTC (permalink / raw) To: guix-devel hello! see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21ca59b365c0 linux 6.7 support use binfmt_misc to add new binary formats within unprivileged namespaces, I think this improves guix reproducibility and also avoids leakage of the host's binfmt into the compilation environment, improves the cross-compilation environment, and potentially unlocks more features, such as not having to system-configure qemu-binfmt, running x86-64 software on a riscv64 machine using `guix pack', guix shell -C -s riscv64-linux, etc. ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: binfmt_misc 2024-03-02 7:56 ` binfmt_misc Z572 @ 2024-03-17 17:31 ` Ludovic Courtès 0 siblings, 0 replies; 2+ messages in thread From: Ludovic Courtès @ 2024-03-17 17:31 UTC (permalink / raw) To: Z572; +Cc: guix-devel Hi, Z572 <873216071@qq.com> skribis: > see > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21ca59b365c0 > > linux 6.7 support use binfmt_misc to add new binary formats within > unprivileged namespaces, > I think this improves guix reproducibility and also avoids leakage of > the host's binfmt into the compilation environment, improves the > cross-compilation environment, and potentially unlocks more features, > such as not having to system-configure qemu-binfmt, running x86-64 > software on a riscv64 machine using `guix pack', guix shell -C -s > riscv64-linux, etc. Interesting. Avoiding leakage looks like the main benefit to me (currently, one has to ‘herd stop qemu-binfmt‘ to ensure there’s no leakage). I’m not sure how it helps with the features you mention, though? Thanks for the heads-up, Ludo’. ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2024-03-17 17:31 UTC | newest] Thread overview: 2+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- [not found] <87msrh2glr.fsf@qq.com> 2024-03-02 7:56 ` binfmt_misc Z572 2024-03-17 17:31 ` binfmt_misc Ludovic Courtès
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