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Groups > linux.kernel > #1244577

Re: [RFC] arm: add __initbss section attribute

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject Re: [RFC] arm: add __initbss section attribute
Date 2015-10-12 12:30 +0200
Message-ID <qiIwH-4vm-31@gated-at.bofh.it> (permalink)
References <qiCAV-4pg-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Monday 12 October 2015 11:59:16 yalin wang wrote:
> This attribute can make init data to be into .initbss section,
> this will make the data to be NO_BITS in vmlinux, can shrink the
> Image file size, and speed up the boot up time.
> 
> Signed-off-by: yalin wang <yalin.wang2010@gmail.com>

Do you have an estimate of how much it gains?

In multi_v7_defconfig, I see a total of 3367 symbols with
406016 bytes init.data, but only 348 bytes of those are
in zero-initialized symbols.

	Arnd
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Thread

[RFC] arm: add __initbss section attribute yalin wang <yalin.wang2010@gmail.com> - 2015-10-12 06:10 +0200
  Re: [RFC] arm: add __initbss section attribute Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2015-10-12 10:30 +0200
    Re: [RFC] arm: add __initbss section attribute yalin wang <yalin.wang2010@gmail.com> - 2015-10-12 10:50 +0200
  Re: [RFC] arm: add __initbss section attribute Arnd Bergmann <arnd@arndb.de> - 2015-10-12 12:30 +0200
  Re: [RFC] arm: add __initbss section attribute Sam Ravnborg <sam@ravnborg.org> - 2015-10-12 22:20 +0200
    Re: [RFC] arm: add __initbss section attribute Arnd Bergmann <arnd@arndb.de> - 2015-10-13 11:50 +0200
      Re: [RFC] arm: add __initbss section attribute yalin wang <yalin.wang2010@gmail.com> - 2015-10-13 12:00 +0200
        Re: [RFC] arm: add __initbss section attribute Arnd Bergmann <arnd@arndb.de> - 2015-10-13 13:30 +0200

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