diff options
Diffstat (limited to 'gcc/symtab.c')
| -rw-r--r-- | gcc/symtab.c | 170 |
1 files changed, 33 insertions, 137 deletions
diff --git a/gcc/symtab.c b/gcc/symtab.c index 3cdf62a..ee47a73 100644 --- a/gcc/symtab.c +++ b/gcc/symtab.c @@ -313,18 +313,6 @@ symbol_table::change_decl_assembler_name (tree decl, tree name) } } -/* Return true when RESOLUTION indicate that linker will use - the symbol from non-LTO object files. */ - -bool -resolution_used_from_other_file_p (enum ld_plugin_symbol_resolution resolution) -{ - return (resolution == LDPR_PREVAILING_DEF - || resolution == LDPR_PREEMPTED_REG - || resolution == LDPR_RESOLVED_EXEC - || resolution == LDPR_RESOLVED_DYN); -} - /* Hash sections by their names. */ hashval_t @@ -527,18 +515,18 @@ symtab_node::create_reference (symtab_node *referred_node, /* IPA_REF_ALIAS is always inserted at the beginning of the list. */ if(use_type == IPA_REF_ALIAS) - { - list2->referring.safe_insert (0, ref); - ref->referred_index = 0; + { + list2->referring.safe_insert (0, ref); + ref->referred_index = 0; - for (unsigned int i = 1; i < list2->referring.length (); i++) - list2->referring[i]->referred_index = i; - } + for (unsigned int i = 1; i < list2->referring.length (); i++) + list2->referring[i]->referred_index = i; + } else - { - list2->referring.safe_push (ref); - ref->referred_index = list2->referring.length () - 1; - } + { + list2->referring.safe_push (ref); + ref->referred_index = list2->referring.length () - 1; + } ref->referring = this; ref->referred = referred_node; @@ -743,52 +731,6 @@ symtab_node::dump_referring (FILE *file) fprintf (file, "\n"); } -/* Return true if list contains an alias. */ -bool -symtab_node::has_aliases_p (void) -{ - ipa_ref *ref = NULL; - int i; - - for (i = 0; iterate_referring (i, ref); i++) - if (ref->use == IPA_REF_ALIAS) - return true; - return false; -} - -/* Iterates I-th reference in the list, REF is also set. */ - -ipa_ref * -symtab_node::iterate_reference (unsigned i, ipa_ref *&ref) -{ - vec_safe_iterate (ref_list.references, i, &ref); - - return ref; -} - -/* Iterates I-th referring item in the list, REF is also set. */ - -ipa_ref * -symtab_node::iterate_referring (unsigned i, ipa_ref *&ref) -{ - ref_list.referring.iterate (i, &ref); - - return ref; -} - -/* Iterates I-th referring alias item in the list, REF is also set. */ - -ipa_ref * -symtab_node::iterate_direct_aliases (unsigned i, ipa_ref *&ref) -{ - ref_list.referring.iterate (i, &ref); - - if (ref && ref->use != IPA_REF_ALIAS) - return NULL; - - return ref; -} - static const char * const symtab_type_names[] = {"symbol", "function", "variable"}; /* Dump base fields of symtab nodes to F. Not to be used directly. */ @@ -1196,29 +1138,6 @@ symtab_node::verify_symtab_nodes (void) } } -/* Return true when NODE is known to be used from other (non-LTO) - object file. Known only when doing LTO via linker plugin. */ - -bool -symtab_node::used_from_object_file_p_worker (symtab_node *node) -{ - if (!TREE_PUBLIC (node->decl) || DECL_EXTERNAL (node->decl)) - return false; - if (resolution_used_from_other_file_p (node->resolution)) - return true; - return false; -} - - -/* Return true when symtab_node is known to be used from other (non-LTO) - object file. Known only when doing LTO via linker plugin. */ - -bool -symtab_node::used_from_object_file_p (void) -{ - return symtab_node::used_from_object_file_p_worker (this); -} - /* Make DECL local. FIXME: We shouldn't need to mess with rtl this early, but other code such as notice_global_symbol generates rtl. */ @@ -1260,20 +1179,13 @@ symtab_node::make_decl_local (void) /* Walk the alias chain to return the symbol NODE is alias of. If NODE is not an alias, return NODE. - When AVAILABILITY is non-NULL, get minimal availability in the chain. */ + Assumes NODE is known to be alias. */ symtab_node * -symtab_node::ultimate_alias_target (enum availability *availability) +symtab_node::ultimate_alias_target_1 (enum availability *availability) { bool weakref_p = false; - if (!alias) - { - if (availability) - *availability = get_availability (); - return this; - } - /* To determine visibility of the target, we follow ELF semantic of aliases. Here alias is an alternative assembler name of a given definition. Its availability prevails the availability of its target (i.e. static alias of @@ -1453,16 +1365,6 @@ symtab_node::get_init_priority () return h ? h->init : DEFAULT_INIT_PRIORITY; } -/* Return availability of NODE. */ -enum availability symtab_node::get_availability (void) -{ - if (is_a <cgraph_node *> (this)) - return dyn_cast <cgraph_node *> (this)->get_availability (); - else - return dyn_cast <varpool_node *> (this)->get_availability ();; -} - - /* Return the finalization priority. */ priority_type @@ -1608,33 +1510,6 @@ symtab_node::resolve_alias (symtab_node *target) return true; } -/* Call calback on symtab node and aliases associated to this node. - When INCLUDE_OVERWRITABLE is false, overwritable aliases and thunks are - skipped. */ - -bool -symtab_node::call_for_symbol_and_aliases (bool (*callback) (symtab_node *, - void *), - void *data, bool include_overwritable) -{ - int i; - ipa_ref *ref; - - if (callback (this, data)) - return true; - for (i = 0; iterate_referring (i, ref); i++) - if (ref->use == IPA_REF_ALIAS) - { - symtab_node *alias = ref->referring; - if (include_overwritable - || alias->get_availability () > AVAIL_INTERPOSABLE) - if (alias->call_for_symbol_and_aliases (callback, data, - include_overwritable)) - return true; - } - return false; -} - /* Worker searching noninterposable alias. */ bool @@ -1961,3 +1836,24 @@ symtab_node::equal_address_to (symtab_node *s2) return 2; } + +/* Worker for call_for_symbol_and_aliases. */ + +bool +symtab_node::call_for_symbol_and_aliases_1 (bool (*callback) (symtab_node *, + void *), + void *data, + bool include_overwritable) +{ + ipa_ref *ref; + FOR_EACH_ALIAS (this, ref) + { + symtab_node *alias = ref->referring; + if (include_overwritable + || alias->get_availability () > AVAIL_INTERPOSABLE) + if (alias->call_for_symbol_and_aliases (callback, data, + include_overwritable)) + return true; + } + return false; +} |