On Aug 1, 2011, at 9:53 AM, Mark Hatle wrote: > On 8/1/11 9:26 AM, Kumar Gala wrote: >> Some of powerpc's dont support the fsqrt[s] instructions so we need an >> implementation of the library functions for those processors. >> >> Signed-off-by: Kumar Gala <[email protected]> >> --- >> .../recipes-core/eglibc/eglibc-2.13/ppc-sqrt.patch | 538 >> ++++++++++++++++++++ >> meta/recipes-core/eglibc/eglibc_2.13.bb | 3 +- >> 2 files changed, 540 insertions(+), 1 deletions(-) >> create mode 100644 meta/recipes-core/eglibc/eglibc-2.13/ppc-sqrt.patch > > I'm a bit confused by this patch. Why is gcc even generating (or trying to) > the > fsqrt instructions on cores that don't have it? Did someone optimize gcc so > that it always requires fsqrt on PPC? (This is horribly broken behavior > BTW...) > > As for the patch, I don't object.. but this just looks like the wrong solution > to me.. >
Mark, the issue isn't w/gcc but glibc itself. It will use inline asm of the 'fsqrt[s]' instruction. This we need a different implementation of the math lib functions for these cores. - k _______________________________________________ Openembedded-core mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
