1 TARGET_ARCH=riscv64 2 TARGET_BASE_ARCH=riscv 3 TARGET_ABI_DIR=riscv 4 TARGET_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 5 CONFIG_SEMIHOSTING=y 6 CONFIG_ARM_COMPATIBLE_SEMIHOSTING=y 7 TARGET_SYSTBL_ABI=64 8 TARGET_SYSTBL_ABI=common,64,riscv,rlimit,memfd_secret 9 TARGET_SYSTBL=syscall.tbl 10 TARGET_LONG_BITS=64 11