Re: RFC: remove partial_symtab::objfile

[Yao Qi <yao@codesourcery.com>]

On 11/29/2012 06:01 AM, Tom Tromey wrote:
> This is a necessary step for symbol table location independence; but I
> see it as a general cleanup as well -- back-pointers are better avoided
> when possible, and it saves some tiny amount of memory.

It is a cleanup to me.  What is "symbol table location independence"? 
Do we have the description or discussion on it some where?

> @@ -2050,13 +2045,13 @@ xcoff_start_psymtab (struct objfile *objfile,
>      are the information for includes and dependencies.  */
>
>   static struct partial_symtab *
> -xcoff_end_psymtab (struct partial_symtab *pst, const char **include_list,
> +xcoff_end_psymtab (struct objfile *objfile,
> +		   struct partial_symtab *pst, const char **include_list,
>   		   int num_includes, int capping_symbol_number,
>   		   struct partial_symtab **dependency_list,
>   		   int number_dependencies, int textlow_not_set)

Why write in this way? to reduce the length of patch? or some other reason?

> @@ -2319,7 +2314,8 @@ scan_xcoff_symtab (struct objfile *objfile)
>   			       each program csect, because their text
>   			       sections need not be adjacent.  */
>   			    xcoff_end_psymtab
> -			      (pst, psymtab_include_list, includes_used,
> +			      (objfile,
> +			       pst, psymtab_include_list, includes_used,
>   			       symnum_before, dependency_list,
>   			       dependencies_used, textlow_not_set);

and here.

-- 
Yao (齐尧)