e6500 only supports 64b kernel. When building 64b kernel + 32b rootfs,
kernel build uses a hack previously, ie. append '-m64' and '-elf64ppc'
to 32b toolchain binaries. This fails if kernel use some builtin functions:
| LINK vmlinux
| LD vmlinux.o
| powerpc-fsl-linux-ld.bfd: Relocatable linking with relocations from
| format elf32-powerpc (.../4.9.2/libgcc.a(_popcountdi2.o)) to format
| elf64-powerpc (vmlinux.o) is not supported
| make: *** [vmlinux] Error 1
| ERROR: oe_runmake failed
modify KERNEL_{CC,LD,AR} to use 64b toolchain binaries to avoid error.
Signed-off-by: Ting Liu <ting.liu@freescale.com> Acked-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
