arm-linux-gnueabi-gcc -mlittle-endian -mabi=aapcs-linux -mno-thumb-interwork -funwind-tables -mthumb -Wa,-mimplicit-it=always -Wa,-mno-warn-deprecated -Wa,-mthumb -march=armv7-a  -msoft-float -gdwarf-2        -c relocate_kernel.s