Re: [PATCH] -gused

[Devang Patel <dpatel at apple dot com>]

On Tuesday, June 24, 2003, at 9:04 AM, Richard Henderson wrote:

> On Mon, Jun 23, 2003 at 03:16:49PM -0700, Devang Patel wrote:
> > I do not know how well it will work with other  formats. Plus pulling
> > this out requires some thinking, that I have not done. I think, we
> > leave it in dbxout and make queuing available in final.c for other
> > formats now. Once we have this approach available
> > in other formats also we can pull it out of dbxout.
>
> Hum, I guess this is ok for now then.

Thank  you. I'll commit this patch to main line.

-Devang

2003-06-24  Devang Patel <dpatel@apple.com>

        * final.c (debug_flush_symbol_queue): New function.
        (debug_queue_symbol): New function.
        (debug_free_queue): New function.
        (debug_nesting): New variable.
        (symbol_queue): New variable.
        (symbol_queue_index): Same.
        (symbol_queue_size): Same.
        * debug.h (debug_flush_symbol_queue): New.
        (debug_queue_symbol): New.
        (debug_nesting): New.
        (symbol_queue_index): New.
        * dbxout.c (DBXOUT_DECR_NESTING): New macro.
        (DBXOUT_DECR_NESTING_AND_RETURN): New macro.
        (dbxout_init): Delay symbol output.
        (dbxout_global_decl): Save, set and reset TREE_USED bit around 
dbxout_symbol()
        call.
        (dbxout_begin_function): Same.
        (dbxout_finish): Free symbol queue.
        (dbxout_type): Put appropriate symbols in queue.
        (dbxout_symbol): Put info for symbol's type in queue. 
Decrement/Increment
        nesting counts flush symbol queue appropriately.
        (dbxout_parms): Increment dbxout nesting.
        (dbxout_reg_parms): Same.
        * flags.h (flag_debug_only_used_symbols): New.
        * toplev.c (flag_debug_only_used_symbols): New variable.
        * config/rs6000/darwin.h (CC1_SPEC): Interpret -gused as 
-feliminate-unused-debug-symbols.
        * doc/invoke.texi (Debugging Options): Document 
-feliminate-unused-debug-symbols.

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