[PATCH] sparc all BSPs: Use function and data sections

[Gedare Bloom]

Well, maybe some intrepid volunteer will step up to try it out with
the raspberrypi. :)

-Gedare

On Fri, Oct 25, 2013 at 10:28 AM, Joel Sherrill
<joel.sherrill at oarcorp.com> wrote:
> On 10/25/2013 9:15 AM, Gedare Bloom wrote:
>> Looks ok. Do these options make the most sense with some kind of
>> link-time optimizations enabled?
>
> These are the options which tell GCC to put each function
> and data element into their own linking section. Then
> the linker needs arguments to do the magic.
>
> I would love to do this across all BSPs but it can also
> break a BSP. The first SPARC executables I got were 0x80
> bytes because I was missing some KEEP() and ENTRY() directives
> in the linker script.
>
> In addition, this isn't a big deal on many BSPs. I would
> love to see it used on low memory BSPs. IMO it should be
> universal on the ARM given that many of them are low memory
> and we already have shared linker scripts.
>
> --joel
>
>> -Gedare
>>
>> On Thu, Oct 24, 2013 at 7:45 PM, Joel Sherrill
>> <joel.sherrill at oarcorp.com> wrote:
>>> Hi
>>>
>>> The attached patch turns on support for function
>>> and data sections for all SPARC BSPs. In my testing,u
>>> it has reduced test sizes to about 55% of their original
>>> size on average.
>>>
>>> If this patch is OK, I would like to commit it
>>> as "forward looking encouragement" so others can
>>> help implement and use this technique on other BSPs.
>>>
>>> --
>>> Joel Sherrill, Ph.D.             Director of Research & Development
>>> joel.sherrill at OARcorp.com        On-Line Applications Research
>>> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
>>> Support Available                (256) 722-9985
>>>
>>> _______________________________________________
>>> rtems-devel mailing list
>>> rtems-devel at rtems.org
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>>>
>
>
>
> --
> Joel Sherrill, Ph.D.             Director of Research & Development
> joel.sherrill at OARcorp.com        On-Line Applications Research
> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
> Support Available                (256) 722-9985