Unfortunately, the Tripos hunk format does not offer anything like that. If the length and hunk identifiers are consistent, the Os will load whatever junk it finds in the hunks. Even worse, with a "crafted" binary file you should be able to even overwrite unrelated memory.
does elf format offer any advantage over hunk? i mean, since for instance aros delivers support for both binary formats on m68k, should elf be preferred?