> 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. Dennis _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
