musl - ppc64 build issue: call to `_dlstart_c' lacks nop, can't restore toc

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Message-ID: <auxaGnWOq8KioEut@windsurf>
Date: Thu, 5 Nov 2026 11:29:25 +0100
From: Thomas Petazzoni <thomas.petazzoni@...tlin.com>
To: musl@...ts.openwall.com
Subject: ppc64 build issue: call to `_dlstart_c' lacks nop, can't restore toc

Dear musl maintainers,

Buildroot autobuilders have detected a build issue with musl 1.2.6
when building for PowerPC 64 (power11):

dlstart.c:(.text+0x24): call to `_dlstart_c' lacks nop, can't restore toc; (toc save/adjust stub)
/home/autobuild/autobuild/instance-24/output-1/host/powerpc64le-buildroot-linux-musl/bin/ld: final link failed: bad value

Build log at:

  https://autobuild.buildroot.org/results/0cc1b30957078c5d1de78131495968d9aaf6b07e/build-end.log

Steps to reproduce:

  git clone https://gitlab.com/buildroot.org/buildroot.git
  cd buildroot/
  wget -O .config https://autobuild.buildroot.org/results/0cc1b30957078c5d1de78131495968d9aaf6b07e/config
  make olddefconfig
  make

Do you have any idea?

Thanks a lot!

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com

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