Bug 936642

Summary:	sys-kernel/gentoo-sources-6.10.1 fails to link with sys-devel/llvm-18.1.8-r1
Product:	Gentoo Linux	Reporter:	Frederik Pfautsch <bugs>
Component:	Current packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	bugs
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	.config emerge --info (partial) kernel build log with stacktrace

Description Frederik Pfautsch 2024-07-25 21:01:00 UTC

During linking of vmlinux.o, lld.ld crashes with a stacktrace (log attached with last few log lines).

Reproducible: Always

Steps to Reproduce:
1. Build gentoo-sources with a purely clang/llvm-based toolchain



Problem similar to https://github.com/llvm/llvm-project/issues/72026. PR https://github.com/llvm/llvm-project/pull/85081 fixes this issue and the kernel builds/links successfully.

Comment 1 Frederik Pfautsch 2024-07-25 21:01:22 UTC

Created attachment 898316 [details]
.config

Comment 2 Frederik Pfautsch 2024-07-25 21:01:37 UTC

Created attachment 898317 [details]
emerge --info

Comment 3 Sam James archtester

2024-07-25 21:01:57 UTC

Yeah, the patches are proving difficult to backport cleanly without introducing test failures. mgorny spent the last few days trying.

*** This bug has been marked as a duplicate of bug 931130 ***

Comment 4 Frederik Pfautsch 2024-07-25 21:02:08 UTC

Created attachment 898318 [details]
(partial) kernel build log with stacktrace

Comment 5 Frederik Pfautsch 2024-07-25 21:04:45 UTC

uff, that was fast. Alright, sorry for the duplicate, I looked for something like this but must have missed it. Thanks for working on it! (I noticed the test case issue and just disregarded them to test if the patch works in general)