1TARGET_ARCH=aarch64 2TARGET_BASE_ARCH=arm 3TARGET_WORDS_BIGENDIAN=y 4TARGET_XML_FILES= gdb-xml/aarch64-core.xml gdb-xml/aarch64-fpu.xml gdb-xml/arm-core.xml gdb-xml/arm-vfp.xml gdb-xml/arm-vfp3.xml gdb-xml/arm-neon.xml gdb-xml/arm-m-profile.xml 5TARGET_HAS_BFLT=y 6CONFIG_ARM_COMPATIBLE_SEMIHOSTING=y 7