Re: Garbage Collector interface - GTY

[Daniel Berlin <dberlin at dberlin dot org>]

On Saturday, February 22, 2003, at 08:33  PM, Geoff Keating wrote:

> > Date: Sat, 22 Feb 2003 21:29:54 +0100
> > From: Josef Zlomek <zlomj9am at artax dot karlin dot mff dot cuni dot cz>
>
> > So its better to split the array of structures to 2 arrays, right?
> > GTY machinery would be used for one of them (the main one),
> > the second (auxiliary) one will not be marked.
>
> I doubt it.  Why can't the whole array be in GCed memory?

It is, actually, and i'm confused what Josef thinks is wrong.

Josef, it does generate *markers* for the struct definition, they just 
are never *used* anywhere.

It uses the right markers for the table:

static void gt_ggc_ma_decl_loc_table PARAMS ((void *));
static void
gt_ggc_ma_decl_loc_table (x_p)
      void *x_p ATTRIBUTE_UNUSED;
{
  if (decl_loc_table != NULL) {
    size_t i0;
    ggc_mark (decl_loc_table);
    for (i0 = 0; i0 < (size_t)(decl_loc_table_allocated); i0++) {
      gt_ggc_m_12var_loc_node (decl_loc_table[i0].first);
      gt_ggc_m_12var_loc_node (decl_loc_table[i0].last);
    }
  }
}



> --
> - Geoffrey Keating <geoffk at geoffk dot org>