On 06/05/2011 02:10 AM, Chris Tyler wrote: > On Sat, 2011-06-04 at 20:53 -0400, Jon Masters wrote: >> [0] We're making a "one time" incompatible ABI switch in F-15 bringup to >> the "hard float" ABI defined in section 6 of the ARM AAPCS (commonly >> referred to as the ARM EABI - but that doesn't actually exist as a >> name). The procedure call standard will be ARM AAPCS vfpv3-d16, as >> defined in section 6 of that document. Other distros are switching and >> this will form the basis of any LSB standardization effort later on. >> Think of v7 and v5 as being different arches, which they are really. > > And to further clarify: > > - This is an addition, not a switch -- the intention is to continue to > support armv5tel in addition to armv7hl at this time -- Tegra and > Marvell Kirkwood (including plug computer) devices which do not support > armv7hl will continue to work with armv5tel. > > - The significant incompatibility is hardfp vs. softfp ABI (moreso than > v7 vs. v5). So would it not be more sensible to make the distro ARMv7 without NEON? That was it would also work on the Tegra while still leaving the scope for having a handful of packages that benefit from NEON available? This would be similar to having the i386 distro with a few i686 packages (e.g. kernel, glibc) where beneficial. Since the ABI is the same I think this would be a better solution, especialy since Tegra is quite widely used and it is becoming a lot more common (AC100, TrimSlice, a number of new tablets, etc.). Gordan _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
