linux-kernel - gcc-8: arm64/kvm/pauth.: Error: unknown architectural extension `pauth'

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Date: Mon, 22 Apr 2024 14:04:43 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: open list <linux-kernel@...r.kernel.org>, 
	Linux ARM <linux-arm-kernel@...ts.infradead.org>, lkft-triage@...ts.linaro.org, 
	Linux Regressions <regressions@...ts.linux.dev>
Cc: Arnd Bergmann <arnd@...db.de>, Anders Roxell <anders.roxell@...aro.org>, 
	Marc Zyngier <maz@...nel.org>, joey.gouly@....com, Oliver Upton <oliver.upton@...ux.dev>
Subject: gcc-8: arm64/kvm/pauth.: Error: unknown architectural extension `pauth'

The arm64 defconfig build failed with gcc-8 and passed with gcc-13.

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

Build log:
---
/tmp/ccSUNNZy.s: Assembler messages:
/tmp/ccSUNNZy.s:3159: Error: unknown architectural extension `pauth'
make[5]: *** [scripts/Makefile.build:244: arch/arm64/kvm/pauth.o] Error 1

Steps to reproduce:
---
# tuxmake --runtime podman --target-arch arm64 --toolchain gcc-8
--kconfig defconfig

Links:
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240422/testrun/23551634/suite/build/test/gcc-8-defconfig/details/
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240422/testrun/23551634/suite/build/test/gcc-8-defconfig/log
  - https://storage.tuxsuite.com/public/linaro/lkft/builds/2fRe0ZWWmise7cetIz0aXdnq4jJ/

--
Linaro LKFT
https://lkft.linaro.org