PATCH][RFC][resend] CC_OPTIMIZE_FOR_SIZE should default to N

Jesper Juhl
2011-03-21T20:08:34Z

I believe that the majority of systems we are built on want a -O2 compiled
kernel. Optimizing for size (-Os) is mainly benneficial for embedded
systems and systems with very small CPU caches (correct me if I'm wrong).
So it seems wrong to me that CC_OPTIMIZE_FOR_SIZE defaults to 'y' and
recommends saying 'Y' if unsure. I believe it should default to 'n' and
recommend that if unsure. People who bennefit from -Os know who they are
and can enable the option if needed/wanted - the majority shouldn't
select this. Right?

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
---
Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 56240e7..0d63dfa 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -903,12 +903,12 @@ endif

config CC_OPTIMIZE_FOR_SIZE
bool "Optimize for size"
- default y
+ default n
help
Enabling this option will pass "-Os" instead of "-O2" to gcc
resulting in a smaller kernel.

- If unsure, say Y.
+ If unsure, say N.

config SYSCTL
bool

--
Jesper Juhl <jj@chaosbits.net> http://www.chaosbits.net/
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