Re: RFC: dropping armel from Debian for the upcoming release
On Tue, 2024-08-06 at 16:21 +0200, Arnd Bergmann wrote:
> I believe the builds are all done on arm64 hardware, and the table
> lists the same issue for available hardware on armel, armhf and arm64.
>
> There are a few instructions that armel binaries can use that
> are missing on armv8 hardware (cp15 barriers, swp/swpb atomics),
> and a few differences in how the kernel treats unaligned memory
> access and personality. Emulation for these is a bit tricky to
> set up correctly for individual developers, but but the
> build servers should generall just work.
Thanks for the clarification.
> Most of issues with armel packages are about libatomic link
> time requirements, and about applications that hardcode armv7
> or vfp instruction extensions.
Code that hardwires CPU baselines is considered RC-buggy anyway, so
that shouldn't be an argument. And that notoric libatomic issue is
just something that should be finally fixed in GCC upstream (unless
I am missing something why that can't be done).
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
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