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openSUSE / libsolv

Library for solving packages and reading repositories
http://en.opensuse.org/openSUSE:Libzypp_satsolver
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Need a way to figure out if aarch64 hosts can install 32-bit packages #261

Open berolinux opened 6 years ago

berolinux commented 6 years ago

Some aarch64 machines (typically consumer machines that may need support for 32-bit apps) support 32-bit instructions, others (typically servers) don't.

This is hard to express in the archpolicies[] format (src/poolarch.c) -- it can be either "aarch64", "aarch64" or "aarch64", "aarch64:armv8hnl:armv8hl:armv8l:armv7hnl:armv7hl:armv7l:..."

On a distribution that provides aarch64 and 32-bit ARM packages, obviously in one case you want to force 64-bit only while in the other case 32-bit packages should be handled like i686 packages on x86_64.

We'll probably run into the same problem with RISC-V at some point, where a CPU may be RISC-V32, RISC-V64 or both.

Cc @Conan-Kudo

Conan-Kudo commented 6 years ago

Yeah, this is something I'm not sure how we want to solve this, but it's something that needs to be figured out in RPM and libsolv.