diff options
Diffstat (limited to 'gcc-4.4.3/gcc/ChangeLog.lock-annotations')
| -rw-r--r-- | gcc-4.4.3/gcc/ChangeLog.lock-annotations | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/gcc-4.4.3/gcc/ChangeLog.lock-annotations b/gcc-4.4.3/gcc/ChangeLog.lock-annotations new file mode 100644 index 000000000..40e8794cf --- /dev/null +++ b/gcc-4.4.3/gcc/ChangeLog.lock-annotations @@ -0,0 +1,252 @@ +2009-03-08 Le-Chun Wu <lcwu@google.com> + + * attribs.c (decl_attributes): Merge the attribute arguments if + another attribute of the same kind is already on the decl. + (merge_lock_attr_args): New function. + * c-common.c (check_lock_unlock_attr_args): Fix coding style issues. + +2009-03-05 Le-Chun Wu <lcwu@google.com> + + * tree-threadsafe-analyze.c (is_base_object_base_class): New function. + (get_canonical_expr): Enhanced to handle base class objects. + (lock_set_contains): Likewise. + (handle_call_gs): Fix an issue in processing the 'this' object of a + method call. + +2009-01-20 Le-Chun Wu <lcwu@google.com> + + * cp/parser.c (cp_parser_init_declarator): Pass both prefix_attributes + and attributes to grokfield. + +2009-01-07 Le-Chun Wu <lcwu@google.com> + + * tree-threadsafe-analyze.c (lock_set_contains): Check the lock set + with the fully-qualified name if the lock is a field. + +2008-12-18 Le-Chun Wu <lcwu@google.com> + + * tree-threadsafe-analyze.c (get_canonical_expr): Fix an issue in + handling lockable objects wrapped in smart pointers. + +2008-12-17 Le-Chun Wu <lcwu@google.com> + + * attribs.c (decl_attributes): Handle fake attribute argument list + nodes for delay parsing and lock attributes with unsupported arguments. + (is_lock_attribute_with_args): New function. + (is_lock_attribute_p): Likewise. + (extract_lock_attributes): Likewise. + * tree.h (is_lock_attribute_with_args): Declaration for new function. + (extract_lock_attributes): Likewise. + * toplev.c (parsing_lock_attribute): New global variable. + * toplev.h (parsing_lock_attribute): Declaration for new global + variable. + * cp/call.c (build_new_method_call): Suppress errors for calls in lock + attributes. + * cp/pt.c (pending_attribute): New struct for pending lock attribute + whose instantiation is deferred. + (pending_lock_attributes): New static variable pointing to pending + lock attributes. + (find_parameter_packs_r): Skip walking the subtrees if the tree list + node is created for delay parsing. + (apply_late_template_attributes): Defer instantiation of lock + attributes. + (pa_reverse): New function. + (instantiate_class_template): Instantiate the deferred lock attributes + and apply them to the corresponding declarations. + (tsubst_copy): Suppress errors for lock attributes. + * cp/semantics.c (finish_non_static_data_member): Suppress errors for + and allow uses of non-static class members in lock attributes. + * cp/lex.c (unqualified_name_lookup_error): Suppress errors for lock + attributes. + * cp/decl2.c (is_late_template_attribute): Handle delay parsing of lock + attribute arguments. + * cp/parser.c (cp_parser): New field. + (cp_parser_name_lookup_error): Suppress errors for lock attributes. + (cp_parser_new): Initialize unparsed_attribute_args_queue to NULL_TREE. + (cp_parser_parenthesized_expression_list): Fix a problem in parsing + identifier arguments and skip folding for decl arguments. + (cp_parser_condition): Add a new argument to cp_parser_attributes_opt. + (cp_parser_decl_specifier_seq): Likewise. + (cp_parser_conversion_type_id): Likewise. + (cp_parser_elaborated_type_specifier): Likewise. + (cp_parser_elaborated_type_specifier): Likewise. + (cp_parser_enum_specifier): Likewise. + (cp_parser_namespace_definition): Likewise. + (cp_parser_using_directive): Likewise. + (cp_parser_init_declarator): Allow lock attributes on function + definitions. Also add a new argument to cp_parser_attributes_opt. + (cp_parser_declarator): Add a new argument to cp_parser_attributes_opt. + (cp_parser_type_specifier_seq): Likewise. + (cp_parser_parameter_declaration): Likewise. + (cp_parser_class_specifier): Late parse the lock attribute arguments + only after finish the outermost class. Also add a new argument to + cp_parser_attributes_opt. + (cp_parser_class_head): Add a new argument to cp_parser_attributes_opt. + (cp_parser_member_declaration): Likewise. + (cp_parser_attributes_opt): Add a new parameter 'member_p' and call + cp_parser_attribute_list with it. + (cp_parser_save_attribute_arg_list): New function. + (cp_parser_attribute_list): Add a new parameter 'member_p'. Also delay + parsing of lock attribute arguments by saving the tokens. + (cp_parser_late_parsing_attribute_arg_lists): New function. + (cp_parser_objc_class_ivars): Add a new argument to + cp_parser_attributes_opt. + (cp_parser_omp_for_loop): Add a new argument to + cp_parser_attributes_opt. + * c-decl.c (undeclared_variable): Suppress errors for lock attributes. + * common.opt: Add a new flag 'Wthread-unsupported-lock-name'. + * c-common.c (supported_lock_expression): New function. + (get_lock_decl): Handle unsupported lock expressions. + (handle_guarded_by_attribute): Handle unsupported lock expressions and + downgrade the attributes. + (populate_acquired_after_map): Likewise. + (handle_acquired_order_attribute): Remove delay binding code. + (check_lock_unlock_attr_args): Use type_num_arguments for the number of + function parameters. And handle unsupported lock arguments. + (handle_lock_attribute): Set lockable_type to NULL if the decl_context + is not a type. + (handle_unlock_attribute): Likewise. + (handle_lock_returned_attribute): Handle unsupported lock expressions. + * c-common.h: Remove declaration of process_unbound_attribute_args. + * tree-threadsafe-analyze.c (gimple_call_tab): New static variable. + (call_gs_hash): New function. + (call_gs_eq): Likewise. + (build_fully_qualified_lock): Add a new argument to get_canonical_expr. + Call get_canonical_expr instead of building a component_ref directly. + (get_canonical_expr): Add a new parameter 'base_obj' for a field decl. + Handle lockable objects wrapped in smart pointers and gimple call + statements. Handle array_ref with non-constant indices. + (leftmost_operand_is_field_decl): New function. + (lock_set_contains): Handle universal lock (i.e. error_mark_node). + (check_lock_required): Add a new argument to get_canonical_expr and + lock_set_contains. Use fully-qualified lock names. Handle unsupported + lock expressions. + (add_lock_to_lockset): New function. + (handle_lock_primitive_attrs): Handle universal lock. Add a new + argument to get_canonical_expr. Check if the decl_context of the + function is a type. + (handle_unlock_primitive_attr): Add a new argument to + get_canonical_expr. Use lock_set_contains instead of + pointer_set_contains. + (process_function_attrs): Handle universal lock. Add a new argument to + get_canonical_expr and lock_set_contains. + (process_guarded_by_attrs): Refactor the code by calling + check_lock_required. + (analyze_expr): Fix a bug in handling indirect references. Handle + universal lock. + (warn_unreleased_locks): Handle universal lock. + (analyze_stmt_r): Fix a bug in handling indirect references. + (execute_threadsafe_analyze): Handle the case where exit block may not + be reachable from the entry. + * c-parser.c (c_parser_declaration_or_fndef): Allow lock attributes on + function definitions. Add support for suppressing errors for lock + attributes. + +2008-09-02 Le-Chun Wu <lcwu@google.com> + + * tree-threadsafe-analyze.c (get_lock_returned_by_call): New function + to return the lock specified in the lock_returned attribute. + (get_lockable_decl): Modified to use the GIMPLE tuple IR. + (get_canonical_expr): Ditto. + (get_actual_argument_from_position): Ditto. + (handle_lock_primitive_attrs): Ditto. + (handle_unlock_primitive_attr): Ditto. + (process_function_attrs): Ditto. + (handle_call_gs): New function that handles gimple call statements. It + replaces the old function handle_call_expr. + (analyze_expr): Modified to use the GIMPLE tuple IR. Added a new + parameter "is_indirect_ref" to support "point_to_guarded_by" attribute + in class members. + (get_trylock_info): Modified to use the GIMPLE tuple IR. + (handle_cond_gs): New function to handle gimple condition statements. + It replaces the old function is_condition_fed_by_trylock. + (analyze_stmt_r): New helper function for walk_gimple_stmt() that is + called on each gimple statement. + (analyze_op_r): New helper function for walk_gimple_stmt() that is + called on each operand of a visited gimple statement. + (execute_threadsafe_analyze): Modified to use the GIMPLE tuple IR. + +2008-08-05 Le-Chun Wu <lcwu@google.com> + + * c-common.c (handle_guarded_by_attribute): Add comments to explain + why we cannot identify static class data members at this point of + compilation. + (check_lock_unlock_attr_args, handle_lock_returned_attribute): Use the + DECL_CONTEXT of a function decl node to determine whether the decl is + a class member. + * tree-threadsafe-analyze.c (build_fully_qualified_lock): New function + to build a fully-qualified name of a lock that is a class member. + (get_canonical_expr): Refactor the code to use + build_fully_qualified_lock. + (handle_lock_primitive_attrs): Call build_fully_qualified_lock. + (handle_unlock_primitive_attr): Call build_fully_qualified_lock. + +2008-07-02 Le-Chun Wu <lcwu@google.com> + + * tree-threadsafe-analyze.c (dump_expr_tree): Fix -Wcast-qual and/or + -Wc++-compat warnings. + (match_locks): Ditto. + (check_acquired_after): Ditto. + (check_locking_order): Ditto. + (handle_unlock_primitive_attr): Ditto. + (warn_locally_unreleased_locks): Ditto. + (warn_unreleased_locks): Ditto. + * gcc/tree-threadsafe-analyze.h: Fix -Wcast-qual and/or -Wc++-compat + warnings. + +2008-06-17 Le-Chun Wu <lcwu@google.com> + + * tree-pretty-print.c (dump_generic_node): Pass 'flags' to the + print_call_name call. + (print_call_name): Add a new parameter 'flags' and pass it to the + dump_generic_node calls. + * tree-pass.h: Add a new pass declaration. + * pointer-set.c (pointer_set_copy): New function. + (pointer_set_delete): Likewise. + (pointer_set_intersection_complement): Likewise. + (pointer_set_union_inplace): Likewise. + (pointer_set_cardinality): Likewise. + * pointer-set.h: Add declarations of new functions. + * toplev.c: Include tree-threadsafe-analyze.h. + (compile_file): Clean up the global data structures used by the thread + safety analysis. + * c-cppbuiltin.c (c_cpp_builtins): Define a new macro + '__SUPPORT_TS_ANNOTATION__'. + * gimplify.c (lookup_tmp_var): Copy thread safety attributes to tmp + variable and save the original variable name. + * common.opt: Add new warning flags -Wthread-safety, + -Wthread-unguarded-var, -Wthread-unguarded-func, + -Wthread-mismatched-lock-order, -Wthread-mismatched-lock-acq-rel, + -Wthread-reentrant-lock. + * c-common.c: Include tree-threadsafe-analyze.h and define new thread + safety attributes. + (unbound_attribute_args): New variable for delaying process of thread + safety attributes in class definition. + (unprocessed_acq_after_args): Likewise. + (unprocessed_acq_before_args): Likewise. + (handle_lockable_attribute): New attribute handler. + (handle_guarded_by_attribute): Likewise. + (handle_point_to_guarded_by_attribute): Likewise. + (handle_guarded_attribute): Likewise. + (handle_point_to_guarded_attribute): Likewise. + (handle_acquired_order_attribute): Likewise. + (handle_lock_attribute): Likewise. + (handle_unlock_attribute): Likewise. + (handle_locks_required_excluded_attribute): Likewise. + (handle_lock_returned_attribute): Likewise. + (handle_no_thread_safety_analysis_attribute): Likewise. + (get_lock_decl): New helper function. + (populate_acquired_after_map): Likewise. + (is_lock_formal_parameter): Likewise. + (check_lock_unlock_attr_args): Likewise. + (process_unbound_attribute_args): New function to process thread safety + attributes inside a class definition. + * c-common.h: Add declaration for process_unbound_attribute_args. + * Makefile.in (OBJS-common): Add tree-threadsafe-analyze.o. + * passes.c (init_optimization_passes): Add a new pass. + * tree-threadsafe-analyze.c: New file. + * tree-threadsafe-analyze.h: New file. + * c-parser.c (c_parser_attributes): Replace the original code that + handles the argument list with a call to c_parser_attr_arg_list. + (c_parser_attr_arg_list): New function to parse the attribute argument + list. |