- filename = tilde_expand (arg);
- if (!IS_ABSOLUTE_PATH(filename))
- {
- temp = concat (current_directory, "/", filename, (char *) NULL);
- xfree (filename);
- filename = temp;
- }
-
- old_chain = make_cleanup (xfree, filename);
+ gdb::unique_xmalloc_ptr<char> filename (tilde_expand (arg));
+ if (!IS_ABSOLUTE_PATH (filename.get ()))
+ filename.reset (concat (current_directory, "/", filename.get (),
+ (char *) NULL));