> Joel> +  /* The DWARF standard implies that the DW_AT_prototyped attribute
> Joel> +     is only meaninful to C.  So assume that non-C functions are
> Joel> +     always prototyped.  */
> Joel> +  if (cu->language != language_c)
> Joel> +    return 1;
> 
> Can Objective C have un-prototyped functions?
> I don't know.  But if it can, then it should be checked here.

Hmmm, I am not 100% sure, but some internet searches suggest
that this is probably true. Thanks! Attached is the updated patch,
just adding language_objc to the condition, and adjusting the
comment accordingly.

gdb/ChangeLog:

        * dwarf2read.c (prototyped_function_p): New function.
        (read_subroutine_type): Use it.

gdb/testsuite/ChangeLog:

        * gdb.ada/float_param: New testcase.

Re-tested on x86_64-linux, no regression.

-- 
Joel