On 4 April 2012 18:54, Jakub Jelinek <ja...@redhat.com> wrote: > On Wed, Apr 04, 2012 at 01:34:30PM +1200, Michael Hope wrote: >> > I did two ports of Mandriva to armv7. One of my choice to use softfp, >> > and another hardfp port to be compatible with other distros. But other >> > than a previous armv5 port, there is not much else of Mandriva arm, >> > so, it would be "good to have" to be able to run binaries for either >> > without resorting to a chroot, and only testing purposes. >> > >> > Bumping major or calling it ld-linux-foo.so.3 is out of question? >> >> I suspect /lib/ld-linux-$foo.so.3 would be fine. There's two >> questions here though: can the hard float loader have a different path >> and, if so, what should it be? We're still working on the first part. > > If the agreement is that arm 32-bit softfp really needs to be installable > alongside 32-bit hardfp (and alongside aarch64), then IMHO it should do it > like all other multilib ports (x86_64/i?86/x32, s390/s390x, ppc/ppc64, the > various MIPS variants) and what FSB says, e.g. use > /lib/ld-linux.so.3 and */lib dirs for softfp, > /libhf/ld-linux.so.3 and */libhf dirs for hardfp and > /lib64/ld-linux.so.3 and */lib64 dirs for aarch64, have 32-bit > arm-linux-gnueabi gcc configured for softfp/hardfp multilib with > MULTILIB_OSDIRNAMES, etc., have it configured in glibc
OK. This gives a different path for the hard float loader and lets the Debian guys add on top of that. I'll ping them and see what they think. > and for those that > choose the Debian layout instead, if it is added somehow configurable into > upstream gcc/glibc of course handle it similarly there. Agreed. > I just wonder why that hasn't been done 10 years ago and only needs doing now FPUs have only become common on ARM in the last few years. softfp was a good interim work around but performance is significantly better with hard float. > (of course, aarch64 is going to be new, talking now about the 32-bit softfp > vs. hardfp). Yip. I assume something like /lib64 to stay consistent with other architectures. aarch64 is hard float only. -- Michael
