Re: How do I determine the ABI string used by pkg?

From: Baptiste Daroussin <>
Date: Mon, 06 Mar 2023 07:56:22 UTC
On Wed, Mar 01, 2023 at 11:50:13PM -0800, Mel Pilgrim wrote:
> I need to determine the ABI string pkg uses on a given system, and need to
> do so when there are no pkgs installed.

pkg config ABI
pkg config ALTABI
> I've read through libpkg/pkg_elf.c and I can see how it's reading ELF
> headers from well-known files.  That's all easy enough to replicate, but I'm
> a bit stuck on how it's determining the arch string for x86.

Why, what are you trying to do?
> How/When does pkg decide to use FreeBSD:13:amd64 instead of
> FreeBSD:13:x86:64?  Can I safely assume one or the other?
Internally pkg always and only uses freebsd:13:x86:64 internally and never FreeBSD:13:amd64.
the ALTABI allows fine grain matching of ABI and compatibility between arches.
ABI is a more user freindly way to read it.