Hi Koen,
On 4/27/06, Koen Kooi <[EMAIL PROTECTED]> wrote:
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Øyvind Kolås wrote:
> On 4/27/06, Philippe Laporte <[EMAIL PROTECTED]> wrote:
>
>>Hi,
>> I would assume that this list be a top source for the following
>>question: what are the compile options for ARM for gcc for the smallest
>>possible size, etc.
>>
>>For both smallest size, and best speed, seperately of course.
>>
>>Or where should I look?
>
>
> One of the changes that have mattered for me is adding -march=armv5te
> to the CFLAGS.
- -mtune=armv5te should yield the same improvement while retaining
compatibilty with armv4. Just in case someone tries to build maemo for a
strongarm platform :)
Actually with arm targets -mtune only accepts values valid for -mcpu
instead of -march.
Unlike x86 where --march implies --mcpu. So armv5te isn't an option
but something like arm920t is.
Does anybody know which of the options supported by -mcpu in gcc 3.3
included with the maemo 1.1 sdk is closest to the ARM926EJ in the
Nokia 770?
I realise gcc 3.4 (used for the kernel build) has support for
-mcpu/-mtune=arm926ej-s, so at least the future is bright :)
regards,
Koen
Regards,
David Connolly
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