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Bug 917677 - move ppc64 to ELFv2 ABI?
Summary: move ppc64 to ELFv2 ABI?
Status: CONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Profiles (show other bugs)
Hardware: All Linux
: Normal normal with 1 vote (vote)
Assignee: ppc64 architecture team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-11-21 15:56 UTC by Andreas K. Hüttel
Modified: 2023-11-22 05:17 UTC (History)
3 users (show)

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Runtime testing required: ---

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Description Andreas K. Hüttel archtester gentoo-dev 2023-11-21 15:56:13 UTC 
Shall we move ppc64 glibc to ELFv2 ABI?

Unclear if interesting / desirable. Bug for reference and tracking.

Likely not going to happen with 23.0 profiles.
Comment 1 ernsteiswuerfel archtester 2023-11-21 20:05:10 UTC 
One benefit would be that lld can be used as linker and hence llvm/clang/lld toolchain on glibc-based profiles. LLD does not do ELFv1 ABI.

musl ppc64 is already ELFv2 ABI so no problem here.
Comment 2 Georgy Yakovlev archtester gentoo-dev 2023-11-21 21:04:47 UTC 
ppc64be should not be elfv2 due to some toolcain assumptions.
Poc64le is already elfv2.

I’ll dump more information why elfv2 should not be used.
It can be used and we can even have a profile for that, but tldr is that adding an extra incompatibility on top of not very compatible triplet will create a bit of chaos.