Quoting Gordan Bobic <gordan@xxxxxxxxxx>: > Dennis Gilmore wrote: >>> Hi Jon, >>> >>> On Wed, May 04 2011, Jon Masters wrote: >>>> I'd like to kick off a discussion about flags for ARMv7. My proposal >>>> here is that we treat v7hl as an entirely different architecture, and >>>> don't try any multi-arch kind of hacks (there isn't the established user >>>> base for Fedora ARM to justify doing any of those things at the moment). >>>> >>>> Things I think we should consider as a minimum: >>>> >>>> *). Little endian (obviously, but worth stating) (l) >>>> *). Cortex-A8 or higher fully compliant core(s) >>>> *). ARM VFP3 hardware floating point (h) >>>> *). ARM NEON Architecture >>>> *). Thumb2 interworking >>>> *). Your suggestion here? >>>> >>>> I think we should build for ARM (as opposed to Thumb2) but we should >>>> support interworking with Thumb2 code through the toolchain options. We >>>> should then later consider implementing some Thumb2 optimization. It's >>>> more armv7thl, but the (t) is implied since it's ARMv7 anyway. >>>> >>>> Several folks have begun looking at toolchain bringup based on the F-15 >>>> toolchain applied to an F-13 userspace initially. But I'd like us to >>>> discuss options/requirements for toolchains before we go too far. >>>> >>>> Once I get some feedback, I'll be updating the wiki, along with some >>>> more F-15 goals and (hopefully) generally useful stuff. >>> Just for the record, this sounds great from OLPC's perspective; +1. >>> (I expect we'd rather build for Thumb2, even if only for the size >>> benefit.) >> >> ive started building some f15 rpms with hardfp >> >> i set in redhat-rpm-config >> -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -mthumb >> >> im using meego as a base to bootstrap, we will need to build a couple of >> times to get everything bootstrapped right with the full set of flags. >> meego dropped some things like selinux. im slowly making some progress. i >> want to get to having a fedora minimal buildroot by the end the week. >> though that might be a bit hard since gcc will take some time to compile. > > Does that mean we are skipping F14 alltogether? I'm not against the > idea, just curious. Anything that helps close the gap to primary distros > is a good thing. :) I don't think armv5 is skipping f14. It is probably a good idea to skip F14 for armv7 though and start off at least in the general ballpark of the mainline distro. The rpm tweaks need to make it upstream though. :) _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
