Makefile.inc1: Fix INSTALLEXTRAKERNELS for one-kernel case
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Authored by ivy on Jan 5 2026, 8:52 PM.

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Reviewers

jrtc27
emaste

Group Reviewers

pkgbase

Commits

rG03c9ad37b497: Makefile.inc1: Fix INSTALLEXTRAKERNELS for one-kernel case
rG0b298e314a8b: Makefile.inc1: Fix INSTALLEXTRAKERNELS for one-kernel case

Summary

If BUILDKERNELS contains a single kernel, and NO_INSTALLEXTRAKERNELS=no,
then ${BUILDKERNELS:[2..-1]} returns the first kernel in the list and
that kernel ends up in both INSTALLKERNEL and INSTALLEXTRAKERNELS.

This breaks the package build because it means we generate that package
twice, once with an incorrect install path of /boot/kernel.NAME instead
of /boot/kernel.

Only set INSTALLEXTRAKERNELS if we're building at least two kernels.

Fixes: 2c0e9a76c1ce ("Makefile.inc1: Make NO_INSTALLKERNEL less of a hack")

Diff Detail

Repository

rG FreeBSD src repository

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Build Status

Buildable 69634
Build 66517: arc lint + arc unit

Event Timeline

ivy created this revision.Jan 5 2026, 8:52 PM

Herald added a subscriber: imp. · View Herald TranscriptJan 5 2026, 8:52 PM

ivy requested review of this revision.Jan 5 2026, 8:52 PM

Harbormaster completed remote builds in B69634: Diff 169130.Jan 5 2026, 8:52 PM

That's... unhelpful. Also not sure how I managed to miss testing that case :(

Seems like this is a confusing result of "If start is greater than end, the words are output in reverse order" - -1 becomes 1 as there's only 1 item in the list, and that's before 2 (I note that "greater" is a confusing term in the manpage, too, given you can index from the end using negative integers). Of course, reversing the one-element list does nothing, but playing around with other similar ranges I can see it reversing them.

This revision is now accepted and ready to land.Jan 5 2026, 9:17 PM

use .elif to make this a bit neater

This revision now requires review to proceed.Jan 5 2026, 9:20 PM

Harbormaster completed remote builds in B69635: Diff 169132.Jan 5 2026, 9:20 PM

In D54539#1246074, @jrtc27 wrote:

Seems like this is a confusing result of "If start is greater than end, the words are output in reverse order"

yes, i was rather surprised by this and thought it was a make bug at first, but it's actually documented behaviour... i feel like there should be a syntax for what we actually want to do here, but i couldn't find one.

This revision was not accepted when it landed; it landed in state Needs Review.Jan 6 2026, 1:49 AM

Closed by commit rG0b298e314a8b: Makefile.inc1: Fix INSTALLEXTRAKERNELS for one-kernel case (authored by ivy). · Explain Why

This revision was automatically updated to reflect the committed changes.

ivy added a commit: rG0b298e314a8b: Makefile.inc1: Fix INSTALLEXTRAKERNELS for one-kernel case.

ivy added a commit: rG03c9ad37b497: Makefile.inc1: Fix INSTALLEXTRAKERNELS for one-kernel case.Feb 22 2026, 1:11 AM