HEADS UP: The default ABI has changed

[Alie Tan]

Sorry my bad, its due to my clock skewed



On Wed, Jul 17, 2013 at 3:15 PM, Alie Tan <alie at afflemedialab.com> wrote:

> Hi,
>
> Somehow i am getting error while compiling the latest code:
> "Makefile", line 233: check your date/time: Wed Jul 17 15:14:02 SGT 2013
>
> Any idea? is this related with the switch?
>
> Regards,
> Alie T
>
>
> On Wed, Jul 17, 2013 at 3:25 AM, Andrew Turner <andrew at fubar.geek.nz>wrote:
>
>> As of r253396 the default ABI on FreeBSD/ARM is the ARM EABI. If you
>> run FreeBSD HEAD on an ARM CPU this will apply to you.
>>
>> If you are currently using the ARM EABI nothing should change for you
>> other than you no longer need to set WITH_ARM_EABI as it is the default.
>>
>> If you are not sure what ABI you are running it is most likely the OABI.
>>
>> People currently running OABI have two options:
>> 1. Stay on OABI by setting WITHOUT_ARM_EABI in make.conf, src.conf or
>>    on the command line. This option will be removed sometime in the
>>    future.
>> 2. Move to ARM EABI by following the instructions below.
>>
>> By changing to EABI you will need to reinstall everything. This
>> includes your kernel, world and ports/packages (i.e. everything). This
>> is because the ABIs are incompatible with each other. Also not that an
>> EABI kernel is unable to run OABI binaries and vice versa.
>>
>> The suggested way to upgrade to the ARM EABI is to rebuild your kernel
>> and world with a second build machine then upgrade all ports and
>> packages. Building and installing an ARM EABI kernel and world on an
>> OABI system is not guaranteed to work, and it is almost certain to fail.
>>
>> Advantages of ARM EABI:
>>  - The main advantage is we are now more compatible with third party
>>    software that relies on the ABI.
>>  - Compatible with future toolchains. The OABI will likely get less
>>    testing as less people use it outside of FreeBSD.
>>  - Improved structure alignment rules.
>>  - Allow future work to enable Thumb-2 by updating the syscall
>>    interface.
>>  - Allow future work to enable the hard float variant of the ARM EABI.
>>    This will provide a performance improvement for code using floating
>>    point operations.
>>
>> There is a known issue with pkg where it will detect the wrong ABI.
>> This is fixed upstream and will be available soon.
>>
>> Andrew
>> _______________________________________________
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>>
>
>