Hello Jan, On Tue, Oct 27, 2015 at 8:13 PM, Jan Viktorin <viktorin at rehivetech.com> wrote:
> > diff --git a/config/defconfig_arm-armv7-a-linuxapp-gcc > b/config/defconfig_arm-armv7-a-linuxapp-gcc > new file mode 100644 > index 0000000..5a778cf > --- /dev/null > +++ b/config/defconfig_arm-armv7-a-linuxapp-gcc > + > +# avoids using i686/x86_64 SIMD instructions, nothing for ARM > +CONFIG_RTE_BITMAP_OPTIMIZATIONS=0 > (<unrelated>yet another build flag which has to disappear, and bitmap header should be moved from librte_sched to eal with arch-specific implementations when applicable</unrelated>) Well, I am a bit confused by this comment. For me, gcc provides ctzll builtins. https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html And with your patchset applied, it builds fine with RTE_BITMAP_OPTIMIZATIONS enabled using gcc 4.7.3 for arm on ubuntu 14.04. Is there a dependency on gcc version ? +# PCI is usually not used on ARM > +CONFIG_RTE_EAL_IGB_UIO=n > Not sure "usually not used" is a good reason to disable something. Is there a real issue on arm with igb_uio code (compilation, pci accesses) ? Thanks. -- David Marchand
