vmlinux object size
(delta in bytes from test_v3.18-rc6 (5d01410fe4d92081f349b013a2e7a95429e4f2c9)):
   text     data      bss    total  kernel
   -391     +480        0      +89  multi_v7_defconfig
   -215     +480        0     +265  tegra_defconfig