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Re: [PATCH]: Remove CONFIG_BUILD_ELF64 entirely

To: "Ralf Baechle" <>
Subject: Re: [PATCH]: Remove CONFIG_BUILD_ELF64 entirely
From: "Franck Bui-Huu" <>
Date: Mon, 26 Mar 2007 11:14:00 +0200
Cc: "Atsushi Nemoto" <>,,,
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On 3/25/07, Ralf Baechle <> wrote:
Note IP27 works fine either way and the code size difference is considerable:
Here are numbers for ip27_defconfig with gcc 4.1.2 and binutils 2.17:

   text    data     bss     dec     hex filename
3397944  415768  256816 4070528  3e1c80 vmlinux BUILD_ELF64=n
3774968  415768  248624 4439360  43bd40 vmlinux BUILD_ELF64=y

Impressive figures !

However I can't understand why there's a such difference, I'm surely
missing something. AFAIK, we're not doing so many symbol loads in the
kernel ? Maybe this difference is related to ksymall ?

Could you make these 2 kernels available for downloading ?


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