linux-kernel - Re: arm-linux-gnueabi-ld: warning: orphan section `__cpuidle_method_of_table' from `arch/arm/mach-omap2/pm33xx-core.o' being placed in section `__cpuidle_method_of

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Message-ID: <CAKwvOdnQ+hiGxfsG5VeJO4qGqfRPvf=Mp7TRgjKzZnTspZjntA@mail.gmail.com>
Date:   Thu, 6 May 2021 12:05:51 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     kbuild-all@...ts.01.org, LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        kernel test robot <lkp@...el.com>,
        clang-built-linux <clang-built-linux@...glegroups.com>
Subject: Re: arm-linux-gnueabi-ld: warning: orphan section `__cpuidle_method_of_table'
 from `arch/arm/mach-omap2/pm33xx-core.o' being placed in section `__cpuidle_method_of_table'

On Fri, Apr 30, 2021 at 5:11 PM kernel test robot <lkp@...el.com> wrote:
>
> Hi Kees,
>
> FYI, the error/warning still remains.
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   65ec0a7d24913b146cd1500d759b8c340319d55e
> commit: 5a17850e251a55bba6d65aefbfeacfa9888cd2cd arm/build: Warn on orphan section placement
> date:   8 months ago
> config: arm-randconfig-r024-20210501 (attached as .config)
> compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5a17850e251a55bba6d65aefbfeacfa9888cd2cd
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 5a17850e251a55bba6d65aefbfeacfa9888cd2cd
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=arm
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
> All warnings (new ones prefixed by >>):
>
> >> arm-linux-gnueabi-ld: warning: orphan section `__cpuidle_method_of_table' from `arch/arm/mach-omap2/pm33xx-core.o' being placed in section `__cpuidle_method_of_table'
> >> arm-linux-gnueabi-ld: warning: orphan section `__cpuidle_method_of_table' from `arch/arm/mach-omap2/pm33xx-core.o' being placed in section `__cpuidle_method_of_table'
> >> arm-linux-gnueabi-ld: warning: orphan section `__cpuidle_method_of_table' from `arch/arm/mach-omap2/pm33xx-core.o' being placed in section `__cpuidle_method_of_table'

Filed: https://github.com/ClangBuiltLinux/linux/issues/1372 (though
this isn't specific to clang).
-- 
Thanks,
~Nick Desaulniers