Re: [Buildroot] [PATCH v3] package/elfutils: ensure we have 5.0 kernel headers for aarch64

From: Florian Fainelli <f.fainelli@gmail.com>
To: "Alex Bennée" <alex.bennee@linaro.org>,
	buildroot@buildroot.org, "Markus Mayer" <mmayer@broadcom.com>
Cc: Jugurtha BELKALEM <jugurtha.belkalem@smile.fr>,
	Alexander Egorenkov <egorenar-dev@posteo.net>,
	Bernd Kuhls <bernd@kuhls.net>, Julien Olivain <ju.o@free.fr>,
	Laurent Vivier <laurent@vivier.eu>,
	"Wojciech M. Zabolotny" <wzab01@gmail.com>,
	Francis Laniel <flaniel@linux.microsoft.com>,
	James Hilliard <james.hilliard1@gmail.com>,
	Romain Naour <romain.naour@gmail.com>,
	Qais Yousef <qais.yousef@arm.com>
Subject: Re: [Buildroot] [PATCH v3] package/elfutils: ensure we have 5.0 kernel headers for aarch64
Date: Tue, 4 Mar 2025 05:28:02 -0800	[thread overview]
Message-ID: <0c66ba0f-9efa-4cc0-8a36-71b54e25979e@gmail.com> (raw)
In-Reply-To: <20250303155310.513886-1-alex.bennee@linaro.org>

On 03/03/2025 07:53, Alex Bennée wrote:
> Since Buildroot commit [1] "package/elfutils: bump to version 0.192"
> elfutils fails to build on Aarch64 with toolchain including Kernel older
> than version 5.0. Error shows:
> 
>      aarch64_initreg.c: In function 'aarch64_set_initial_registers_tid':
>      aarch64_initreg.c:61:24: error: storage size of 'pac_mask' isn't
>      known
>         61 |   struct user_pac_mask pac_mask;
>            |                        ^~~~~~~~
> 
> elfutils 0.192 introduced a Aarch64 pointer authentication support in
> upstream commit [2].
> 
> For reference, the user_pac_mask structure was introduced in Kernel
> upstream commit [3], included in Kernel v5.0.
> 
> Fixes:
> - e.g https://autobuild.buildroot.org/results/5156901a73be52ce8ffbf10729e6852499a300be/
> - 4/6 of the failures here: https://autobuild.buildroot.org/?reason=elfutils-0.192&arch=aarch64
> 
> [1] https://gitlab.com/buildroot.org/buildroot/-/commit/5eb734766b24de5fce6e586897cd4827f8855442
> [2] https://sourceware.org/git/?p=elfutils.git;a=commitdiff;h=64e3b451ad2cec8d45661b1816e3d2dc4431f3ca
> [3] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ec6e822d1a22d0eef1d1fa260dff751dba9a4258
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Message-Id: <20250217140332.310347-1-alex.bennee@linaro.org>

Was there a particular reason you decided not to take this upstream 
patch and just spun a v3:

https://sourceware.org/git/?p=elfutils.git;a=commit;h=52a747a316042e70a22acb489df9e51bfc6bf2d5

-- 
Florian

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