https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127376
--- Comment #3 from Drea Pinski <pinskia at gcc dot gnu.org> ---
The order is based on:
symbols_to_copy.sort (cmp_symbol_files, (void *)&id_map);
Where cmp_symbol_files is:
static int
cmp_symbol_files (const void *pn1, const void *pn2, void *id_map_)
{
const symtab_node *n1 = *(const symtab_node * const *)pn1;
const symtab_node *n2 = *(const symtab_node * const *)pn2;
hash_map<lto_file_decl_data *, int> *id_map
= (hash_map<lto_file_decl_data *, int> *)id_map_;
int file_order1 = n1->lto_file_data ? n1->lto_file_data->order : -1;
int file_order2 = n2->lto_file_data ? n2->lto_file_data->order : -1;
/* Order files same way as they appeared in the command line to reduce
seeking while copying sections. */
if (file_order1 != file_order2)
return file_order1 - file_order2;
/* Order within static library. */
if (n1->lto_file_data && n1->lto_file_data->id != n2->lto_file_data->id)
return *id_map->get (n1->lto_file_data) - *id_map->get (n2->lto_file_data);
/* And finally order by the definition order. */
return n1->order - n2->order;
}
