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From:   Andrew Morton <akpm@linux-foundation.org>
To:     Arnd Bergmann <arnd@kernel.org>
Cc:     Nathan Chancellor <natechancellor@gmail.com>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Arnd Bergmann <arnd@arndb.de>, Barret Rhoden <brho@google.com>,
        linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: Re: [PATCH 1/2] initramfs: fix clang build failure
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On Fri,  4 Dec 2020 17:57:33 +0100 Arnd Bergmann <arnd@kernel.org> wrote:

> There is only one function in init/initramfs.c that is in the .text
> section, and it is marked __weak. When building with clang-12 and
> the integrated assembler, this leads to a bug with recordmcount:
> 
> ./scripts/recordmcount  "init/initramfs.o"
> Cannot find symbol for section 2: .text.
> init/initramfs.o: failed

That looks like recordmcount is being silly?

> I'm not quite sure what exactly goes wrong, but I notice that this
> function is only ever called from an __init function, and normally
> inlined. Marking it __init as well is clearly correct and it
> leads to recordmcount no longer complaining.

That works, too.