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Date:   Sun, 24 May 2020 18:48:27 -0400
From:   Brian Gerst <>
To:     Arvind Sankar <>
Cc:     Thomas Gleixner <>,
        Ingo Molnar <>, Borislav Petkov <>,
        "H. Peter Anvin" <>,
        "the arch/x86 maintainers" <>,
        Nick Desaulniers <>,
        Fangrui Song <>,
        Dmitry Golovin <>,
        clang-built-linux <>,
        Ard Biesheuvel <>,
        Masahiro Yamada <>,
        Daniel Kiper <>,
        Linux Kernel Mailing List <>
Subject: Re: [PATCH 1/4] x86/boot: Add .text.startup to setup.ld

On Sun, May 24, 2020 at 5:32 PM Arvind Sankar <> wrote:
> gcc puts the main function into .text.startup when compiled with -Os (or
> -O2). This results in arch/x86/boot/main.c having a .text.startup
> section which is currently not included explicitly in the linker script
> setup.ld in the same directory.

If the compiler is making assumptions based on the function name
"main" wouldn't it be simpler just to rename the function?

Brian Gerst

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