This is a airly frequent question
the short answer is 'don't try'
the longer answer is that all the additional optimization options that are
part of O3+ are considered individually and if they make sense for the
kernel they are explicitly enabled (in some cases the optimizations need
to be explicitly turned off for proper functionality of the kernel under
all versions of GCC)
David Lang
On Fri, 22 Jul 2005, christos gentsis wrote:
Date: Fri, 22 Jul 2005 19:55:48 +0100
From: christos gentsis <[email protected]>
To: [email protected]
Subject: kernel optimization
hello
i would like to ask if it possible to change the optimization of the kernel
from -O2 to -O3 :D, how can i do that? if i change it to the top level
Makefile does it change to all the Makefiles?
And let's say that i change it... does this generate any problems with the
space that the kernel will take? (the kernel will be much larger)
Thanks
Chris
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