return gdbarch->displaced_step_copy_insn != NULL;
}
-struct displaced_step_closure *
+std::unique_ptr<displaced_step_closure>
gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs)
{
gdb_assert (gdbarch != NULL);