Re: CVS commit: src/sys/lib/libsa

[christos%astron.com@localhost (Christos Zoulas)]

In article <20080326210032.GG10654%snowdrop.l8s.co.uk@localhost>,
David Laight  <david%l8s.co.uk@localhost> wrote:
>On Mon, Mar 24, 2008 at 12:18:06PM +0200, Alan Barrett wrote:
>> On Tue, 18 Mar 2008, matthew green wrote:
>> >    Is there an easy way of saying
>> >    
>> >            #if optimise_for_space
>> >                    use this implementation
>> >            #else
>> >                    use another implementation
>> >            #endif
>> > 
>> > yes - i had considered suggesting this.  you want to check
>> > for __OPTIMIZE__ IIRC.  the gcc manual probably has it.
>> 
>> Found it:  __OPTIMIZE_SIZE__, documented in "info cpp".
>
>Stuff for boot/bootxx often uses STANDALONE

If size is important it should also be compiled with -Os, and then
__OPTIMIZE_SIZE__ is defined. If you don't care about size, you are
not using -Os, and you get speed instead :-) It seems that some part
of the boot code does not use -Os, so I assume it does not care about
size.

christos