Re: [PATCH] x86_64: Do not use -ffunction-sections for modules

From: Andi Kleen
Date: Wed Jun 21 2006 - 12:40:37 EST



The correct mailing list is still discuss@xxxxxxxxxx

On Thursday 01 January 1970 01:00, Sergey Vlasov wrote:
> Currently CONFIG_REORDER uses -ffunction-sections for all code;
> however, creating a separate section for each function is not useful
> for modules and just adds bloat.

You mean the ELF files are larger? .text/.data size shouldn't
change in theory.

> Moving this option from CFLAGS to
> CFLAGS_KERNEL shrinks module object files (e.g., the module tree for a
> kernel built with most drivers as modules shrinked from 54M to 46M),
> and decreases the number of sysfs files in /sys/module/*/sections/
> directories.

Thanks applied.

-Andi
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