Date: Wed, 17 Jul 2013 15:15:21 +0800 From: Alie Tan <alie@afflemedialab.com> To: Andrew Turner <andrew@fubar.geek.nz> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: HEADS UP: The default ABI has changed Message-ID: <CANuCnH9Bd44jFXcXWV1FpXip-7BuPG2L01x0pHsQ2W=UGvnirg@mail.gmail.com> In-Reply-To: <20130716202516.10a67fec@bender.Home> References: <20130716202516.10a67fec@bender.Home>
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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@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 > _______________________________________________ > freebsd-arm@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org" >
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