1TARGET_ARCH=s390x 2TARGET_SYSTBL_ABI=common,64 3TARGET_SYSTBL=syscall.tbl 4TARGET_BIG_ENDIAN=y 5TARGET_XML_FILES= gdb-xml/s390x-core64.xml gdb-xml/s390-acr.xml gdb-xml/s390-fpr.xml gdb-xml/s390-vx.xml gdb-xml/s390-cr.xml gdb-xml/s390-virt.xml gdb-xml/s390-virt-kvm.xml gdb-xml/s390-gs.xml 6TARGET_LONG_BITS=64 7