#define tc_regname_to_dw2regnum tc_riscv_regname_to_dw2regnum
extern int tc_riscv_regname_to_dw2regnum (char *);
-extern unsigned xlen;
#define DWARF2_DEFAULT_RETURN_COLUMN X_RA
/* Even on RV64, use 4-byte alignment, as F registers may be only 32 bits. */