* inet/inet6_rth.c (inet6_rth_add): Add some error checking. Patch mostly by Yang Hongyang <yanghy@cn.fujitsu.com>. * inet/Makefile (tests): Add tst-inet6_rth. * inet/tst-inet6_rth.c: New file. alignment of La_x86_64_regs. Store xmm parameters.