symtab_node * symtab_nonoverwritable_alias (symtab_node *node) { tree new_decl; symtab_node *new_node = NULL; /* First try to look up existing alias or base object (if that is already non-overwritable). */ node = symtab_alias_ultimate_target (node, NULL); gcc_assert (!node->alias && !node->weakref); symtab_for_node_and_aliases (node, symtab_nonoverwritable_alias_1, (void *)&new_node, true); if (new_node) return new_node; #ifndef ASM_OUTPUT_DEF /* If aliases aren't supported by the assembler, fail. */ return NULL; #endif /* Otherwise create a new one. */ new_decl = copy_node (node->decl); DECL_DLLIMPORT_P (new_decl) = 0; DECL_NAME (new_decl) = clone_function_name (node->decl, "localalias"); if (TREE_CODE (new_decl) == FUNCTION_DECL) DECL_STRUCT_FUNCTION (new_decl) = NULL; DECL_INITIAL (new_decl) = NULL; SET_DECL_ASSEMBLER_NAME (new_decl, DECL_NAME (new_decl)); SET_DECL_RTL (new_decl, NULL); /* Update the properties. */ DECL_EXTERNAL (new_decl) = 0; if (DECL_ONE_ONLY (node->decl)) DECL_SECTION_NAME (new_decl) = NULL; DECL_COMDAT_GROUP (new_decl) = 0; TREE_PUBLIC (new_decl) = 0; DECL_COMDAT (new_decl) = 0; DECL_WEAK (new_decl) = 0; DECL_VIRTUAL_P (new_decl) = 0; if (TREE_CODE (new_decl) == FUNCTION_DECL) { DECL_STATIC_CONSTRUCTOR (new_decl) = 0; DECL_STATIC_DESTRUCTOR (new_decl) = 0; new_node = cgraph_create_function_alias (new_decl, node->decl); } else new_node = varpool_create_variable_alias (new_decl, node->decl); symtab_resolve_alias (new_node, node); gcc_assert (decl_binds_to_current_def_p (new_decl)); return new_node; }
struct varpool_node * varpool_extra_name_alias (tree alias, tree decl) { struct varpool_node *alias_node; #ifndef ASM_OUTPUT_DEF /* If aliases aren't supported by the assembler, fail. */ return NULL; #endif alias_node = varpool_create_variable_alias (alias, decl); alias_node->extra_name_alias = true; return alias_node; }
varpool_node * varpool_extra_name_alias (tree alias, tree decl) { varpool_node *alias_node; #ifndef ASM_OUTPUT_DEF /* If aliases aren't supported by the assembler, fail. */ return NULL; #endif alias_node = varpool_create_variable_alias (alias, decl); alias_node->cpp_implicit_alias = true; /* Extra name alias mechanizm creates aliases really late via DECL_ASSEMBLER_NAME mechanizm. This is unfortunate because they are not going through the standard channels. Ensure they get output. */ if (cpp_implicit_aliases_done) symtab_resolve_alias (alias_node, varpool_node_for_decl (decl)); return alias_node; }
symtab_node symtab_nonoverwritable_alias (symtab_node node) { tree new_decl; symtab_node new_node = NULL; symtab_for_node_and_aliases (node, symtab_nonoverwritable_alias_1, (void *)&new_node, true); if (new_node) return new_node; new_decl = copy_node (node->symbol.decl); DECL_NAME (new_decl) = clone_function_name (node->symbol.decl, "localalias"); if (TREE_CODE (new_decl) == FUNCTION_DECL) DECL_STRUCT_FUNCTION (new_decl) = NULL; DECL_INITIAL (new_decl) = NULL; SET_DECL_ASSEMBLER_NAME (new_decl, DECL_NAME (new_decl)); SET_DECL_RTL (new_decl, NULL); /* Update the properties. */ DECL_EXTERNAL (new_decl) = 0; if (DECL_ONE_ONLY (node->symbol.decl)) DECL_SECTION_NAME (new_decl) = NULL; DECL_COMDAT_GROUP (new_decl) = 0; TREE_PUBLIC (new_decl) = 0; DECL_COMDAT (new_decl) = 0; DECL_WEAK (new_decl) = 0; DECL_VIRTUAL_P (new_decl) = 0; if (TREE_CODE (new_decl) == FUNCTION_DECL) { DECL_STATIC_CONSTRUCTOR (new_decl) = 0; DECL_STATIC_DESTRUCTOR (new_decl) = 0; new_node = (symtab_node) cgraph_create_function_alias (new_decl, node->symbol.decl); } else new_node = (symtab_node) varpool_create_variable_alias (new_decl, node->symbol.decl); symtab_resolve_alias (new_node, node); return new_node; }