1TARGET_ARCH=riscv64 2TARGET_BASE_ARCH=riscv 3TARGET_ABI_DIR=riscv 4TARGET_XML_FILES= gdb-xml/riscv-64bit-cpu.xml gdb-xml/riscv-32bit-fpu.xml gdb-xml/riscv-64bit-fpu.xml gdb-xml/riscv-64bit-virtual.xml 5CONFIG_SEMIHOSTING=y 6CONFIG_ARM_COMPATIBLE_SEMIHOSTING=y 7TARGET_SYSTBL_ABI=64 8TARGET_SYSTBL_ABI=common,64,riscv,rlimit,memfd_secret 9TARGET_SYSTBL=syscall.tbl 10