+++ /dev/null
-/* GNU Objective C Runtime initialization
- Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc.
- Contributed by Kresten Krab Thorup
- +load support contributed by Ovidiu Predescu <ovidiu@net-community.com>
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify it under the
-terms of the GNU General Public License as published by the Free Software
-Foundation; either version 2, or (at your option) any later version.
-
-GNU CC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
-details.
-
-You should have received a copy of the GNU General Public License along with
-GNU CC; see the file COPYING. If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/* As a special exception, if you link this library with files compiled with
- GCC to produce an executable, this does not cause the resulting executable
- to be covered by the GNU General Public License. This exception does not
- however invalidate any other reasons why the executable file might be
- covered by the GNU General Public License. */
-
-#include "runtime.h"
-
-/* The version number of this runtime. This must match the number
- defined in gcc (objc-act.c) */
-#define OBJC_VERSION 8
-#define PROTOCOL_VERSION 2
-
-/* This list contains all modules currently loaded into the runtime */
-static struct objc_list* __objc_module_list = 0; /* !T:MUTEX */
-
-/* This list contains all proto_list's not yet assigned class links */
-static struct objc_list* unclaimed_proto_list = 0; /* !T:MUTEX */
-
-/* List of unresolved static instances. */
-static struct objc_list *uninitialized_statics = 0; /* !T:MUTEX */
-
-/* Global runtime "write" mutex. */
-objc_mutex_t __objc_runtime_mutex = 0;
-
-/* Number of threads that are alive. */
-int __objc_runtime_threads_alive = 1; /* !T:MUTEX */
-
-/* Check compiler vs runtime version */
-static void init_check_module_version (Module_t);
-
-/* Assign isa links to protos */
-static void __objc_init_protocols (struct objc_protocol_list* protos);
-
-/* Add protocol to class */
-static void __objc_class_add_protocols (Class, struct objc_protocol_list*);
-
-/* This is a hook which is called by __objc_exec_class every time a class
- or a category is loaded into the runtime. This may e.g. help a
- dynamic loader determine the classes that have been loaded when
- an object file is dynamically linked in */
-void (*_objc_load_callback)(Class class, Category* category); /* !T:SAFE */
-
-/* Is all categories/classes resolved? */
-BOOL __objc_dangling_categories = NO; /* !T:UNUSED */
-
-extern SEL
-__sel_register_typed_name (const char *name, const char *types,
- struct objc_selector *orig, BOOL is_const);
-
-/* Sends +load to all classes and categories in certain situations. */
-static void objc_send_load (void);
-
-/* Inserts all the classes defined in module in a tree of classes that
- resembles the class hierarchy. This tree is traversed in preorder and the
- classes in its nodes receive the +load message if these methods were not
- executed before. The algorithm ensures that when the +load method of a class
- is executed all the superclasses have been already received the +load
- message. */
-static void __objc_create_classes_tree (Module_t module);
-
-static void __objc_call_callback (Module_t module);
-
-/* A special version that works only before the classes are completely
- installed in the runtime. */
-static BOOL class_is_subclass_of_class (Class class, Class superclass);
-
-typedef struct objc_class_tree {
- Class class;
- struct objc_list *subclasses; /* `head' is pointer to an objc_class_tree */
-} objc_class_tree;
-
-/* This is a linked list of objc_class_tree trees. The head of these trees
- are root classes (their super class is Nil). These different trees
- represent different class hierarchies. */
-static struct objc_list *__objc_class_tree_list = NULL;
-
-/* Keeps the +load methods who have been already executed. This hash should
- not be destroyed during the execution of the program. */
-static cache_ptr __objc_load_methods = NULL;
-
-/* Creates a tree of classes whose topmost class is directly inherited from
- `upper' and the bottom class in this tree is `bottom_class'. The classes
- in this tree are super classes of `bottom_class'. `subclasses' member
- of each tree node point to the next subclass tree node. */
-static objc_class_tree *
-create_tree_of_subclasses_inherited_from (Class bottom_class, Class upper)
-{
- Class superclass = bottom_class->super_class ?
- objc_lookup_class ((char*)bottom_class->super_class)
- : Nil;
-
- objc_class_tree *tree, *prev;
-
- DEBUG_PRINTF ("create_tree_of_subclasses_inherited_from:");
- DEBUG_PRINTF ("bottom_class = %s, upper = %s\n",
- (bottom_class ? bottom_class->name : NULL),
- (upper ? upper->name : NULL));
-
- tree = prev = objc_calloc (1, sizeof (objc_class_tree));
- prev->class = bottom_class;
-
- while (superclass != upper)
- {
- tree = objc_calloc (1, sizeof (objc_class_tree));
- tree->class = superclass;
- tree->subclasses = list_cons (prev, tree->subclasses);
- superclass = (superclass->super_class ?
- objc_lookup_class ((char*)superclass->super_class)
- : Nil);
- prev = tree;
- }
-
- return tree;
-}
-
-/* Insert the `class' into the proper place in the `tree' class hierarchy. This
- function returns a new tree if the class has been successfully inserted into
- the tree or NULL if the class is not part of the classes hierarchy described
- by `tree'. This function is private to objc_tree_insert_class(), you should
- not call it directly. */
-static objc_class_tree *
-__objc_tree_insert_class (objc_class_tree *tree, Class class)
-{
- DEBUG_PRINTF ("__objc_tree_insert_class: tree = %x, class = %s\n",
- tree, class->name);
-
- if (tree == NULL)
- return create_tree_of_subclasses_inherited_from (class, NULL);
- else if (class == tree->class)
- {
- /* `class' has been already inserted */
- DEBUG_PRINTF ("1. class %s was previously inserted\n", class->name);
- return tree;
- }
- else if ((class->super_class ?
- objc_lookup_class ((char*)class->super_class)
- : Nil)
- == tree->class)
- {
- /* If class is a direct subclass of tree->class then add class to the
- list of subclasses. First check to see if it wasn't already
- inserted. */
- struct objc_list *list = tree->subclasses;
- objc_class_tree *node;
-
- while (list)
- {
- /* Class has been already inserted; do nothing just return
- the tree. */
- if (((objc_class_tree*)list->head)->class == class)
- {
- DEBUG_PRINTF ("2. class %s was previously inserted\n",
- class->name);
- return tree;
- }
- list = list->tail;
- }
-
- /* Create a new node class and insert it into the list of subclasses */
- node = objc_calloc (1, sizeof (objc_class_tree));
- node->class = class;
- tree->subclasses = list_cons (node, tree->subclasses);
- DEBUG_PRINTF ("3. class %s inserted\n", class->name);
- return tree;
- }
- else
- {
- /* The class is not a direct subclass of tree->class. Search for class's
- superclasses in the list of subclasses. */
- struct objc_list *subclasses = tree->subclasses;
-
- /* Precondition: the class must be a subclass of tree->class; otherwise
- return NULL to indicate our caller that it must take the next tree. */
- if (!class_is_subclass_of_class (class, tree->class))
- return NULL;
-
- for (; subclasses != NULL; subclasses = subclasses->tail)
- {
- Class aClass = ((objc_class_tree*)(subclasses->head))->class;
-
- if (class_is_subclass_of_class (class, aClass))
- {
- /* If we found one of class's superclasses we insert the class
- into its subtree and return the original tree since nothing
- has been changed. */
- subclasses->head
- = __objc_tree_insert_class (subclasses->head, class);
- DEBUG_PRINTF ("4. class %s inserted\n", class->name);
- return tree;
- }
- }
-
- /* We haven't found a subclass of `class' in the `subclasses' list.
- Create a new tree of classes whose topmost class is a direct subclass
- of tree->class. */
- {
- objc_class_tree *new_tree
- = create_tree_of_subclasses_inherited_from (class, tree->class);
- tree->subclasses = list_cons (new_tree, tree->subclasses);
- DEBUG_PRINTF ("5. class %s inserted\n", class->name);
- return tree;
- }
- }
-}
-
-/* This function inserts `class' in the right tree hierarchy classes. */
-static void
-objc_tree_insert_class (Class class)
-{
- struct objc_list *list_node;
- objc_class_tree *tree;
-
- list_node = __objc_class_tree_list;
- while (list_node)
- {
- tree = __objc_tree_insert_class (list_node->head, class);
- if (tree)
- {
- list_node->head = tree;
- break;
- }
- else
- list_node = list_node->tail;
- }
-
- /* If the list was finished but the class hasn't been inserted, insert it
- here. */
- if (!list_node)
- {
- __objc_class_tree_list = list_cons (NULL, __objc_class_tree_list);
- __objc_class_tree_list->head = __objc_tree_insert_class (NULL, class);
- }
-}
-
-/* Traverse tree in preorder. Used to send +load. */
-static void
-objc_preorder_traverse (objc_class_tree *tree,
- int level,
- void (*function)(objc_class_tree*, int))
-{
- struct objc_list *node;
-
- (*function) (tree, level);
- for (node = tree->subclasses; node; node = node->tail)
- objc_preorder_traverse (node->head, level + 1, function);
-}
-
-/* Traverse tree in postorder. Used to destroy a tree. */
-static void
-objc_postorder_traverse (objc_class_tree *tree,
- int level,
- void (*function)(objc_class_tree*, int))
-{
- struct objc_list *node;
-
- for (node = tree->subclasses; node; node = node->tail)
- objc_postorder_traverse (node->head, level + 1, function);
- (*function) (tree, level);
-}
-
-/* Used to print a tree class hierarchy. */
-#ifdef DEBUG
-static void
-__objc_tree_print (objc_class_tree *tree, int level)
-{
- int i;
-
- for (i = 0; i < level; i++)
- printf (" ");
- printf ("%s\n", tree->class->name);
-}
-#endif
-
-/* Walks on a linked list of methods in the reverse order and executes all
- the methods corresponding to `op' selector. Walking in the reverse order
- assures the +load of class is executed first and then +load of categories
- because of the way in which categories are added to the class methods. */
-static void
-__objc_send_message_in_list (MethodList_t method_list, Class class, SEL op)
-{
- int i;
-
- if (!method_list)
- return;
-
- /* First execute the `op' message in the following method lists */
- __objc_send_message_in_list (method_list->method_next, class, op);
-
- /* Search the method list. */
- for (i = 0; i < method_list->method_count; i++)
- {
- Method_t mth = &method_list->method_list[i];
-
- if (mth->method_name && sel_eq (mth->method_name, op)
- && !hash_is_key_in_hash (__objc_load_methods, mth->method_imp))
- {
- /* Add this method into the +load hash table */
- hash_add (&__objc_load_methods, mth->method_imp, mth->method_imp);
-
- DEBUG_PRINTF ("sending +load in class: %s\n", class->name);
-
- /* The method was found and wasn't previously executed. */
- (*mth->method_imp) ((id)class, mth->method_name);
-
- break;
- }
- }
-}
-
-static void
-__objc_send_load (objc_class_tree *tree, int level)
-{
- static SEL load_sel = 0;
- Class class = tree->class;
- MethodList_t method_list = class->class_pointer->methods;
-
- if (!load_sel)
- load_sel = sel_register_name ("load");
-
- __objc_send_message_in_list (method_list, class, load_sel);
-}
-
-static void
-__objc_destroy_class_tree_node (objc_class_tree *tree, int level)
-{
- objc_free (tree);
-}
-
-/* This is used to check if the relationship between two classes before the
- runtime completely installs the classes. */
-static BOOL
-class_is_subclass_of_class (Class class, Class superclass)
-{
- for (; class != Nil;)
- {
- if (class == superclass)
- return YES;
- class = (class->super_class ?
- objc_lookup_class ((char*)class->super_class)
- : Nil);
- }
-
- return NO;
-}
-
-/* This list contains all the classes in the runtime system for whom their
- superclasses are not yet know to the runtime. */
-static struct objc_list* unresolved_classes = 0;
-
-/* Extern function used to reference the Object and NXConstantString classes.
- */
-
-extern void __objc_force_linking (void);
-
-void
-__objc_force_linking (void)
-{
- extern void __objc_linking (void);
- __objc_linking ();
-}
-
-/* Run through the statics list, removing modules as soon as all its statics
- have been initialized. */
-static void
-objc_init_statics (void)
-{
- struct objc_list **cell = &uninitialized_statics;
- struct objc_static_instances **statics_in_module;
-
- objc_mutex_lock(__objc_runtime_mutex);
-
- while (*cell)
- {
- int module_initialized = 1;
-
- for (statics_in_module = (*cell)->head;
- *statics_in_module; statics_in_module++)
- {
- struct objc_static_instances *statics = *statics_in_module;
- Class class = objc_lookup_class (statics->class_name);
-
- if (!class)
- module_initialized = 0;
- /* Actually, the static's class_pointer will be NULL when we
- haven't been here before. However, the comparison is to be
- reminded of taking into account class posing and to think about
- possible semantics... */
- else if (class != statics->instances[0]->class_pointer)
- {
- id *inst;
-
- for (inst = &statics->instances[0]; *inst; inst++)
- {
- (*inst)->class_pointer = class;
-
- /* ??? Make sure the object will not be freed. With
- refcounting, invoke `-retain'. Without refcounting, do
- nothing and hope that `-free' will never be invoked. */
-
- /* ??? Send the object an `-initStatic' or something to
- that effect now or later on? What are the semantics of
- statically allocated instances, besides the trivial
- NXConstantString, anyway? */
- }
- }
- }
- if (module_initialized)
- {
- /* Remove this module from the uninitialized list. */
- struct objc_list *this = *cell;
- *cell = this->tail;
- objc_free(this);
- }
- else
- cell = &(*cell)->tail;
- }
-
- objc_mutex_unlock(__objc_runtime_mutex);
-} /* objc_init_statics */
-
-/* This function is called by constructor functions generated for each
- module compiled. (_GLOBAL_$I$...) The purpose of this function is to
- gather the module pointers so that they may be processed by the
- initialization routines as soon as possible */
-
-void
-__objc_exec_class (Module_t module)
-{
- /* Have we processed any constructors previously? This flag is used to
- indicate that some global data structures need to be built. */
- static BOOL previous_constructors = 0;
-
- static struct objc_list* unclaimed_categories = 0;
-
- /* The symbol table (defined in objc-api.h) generated by gcc */
- Symtab_t symtab = module->symtab;
-
- /* The statics in this module */
- struct objc_static_instances **statics
- = symtab->defs[symtab->cls_def_cnt + symtab->cat_def_cnt];
-
- /* Entry used to traverse hash lists */
- struct objc_list** cell;
-
- /* The table of selector references for this module */
- SEL selectors = symtab->refs;
-
- /* dummy counter */
- int i;
-
- DEBUG_PRINTF ("received module: %s\n", module->name);
-
- /* check gcc version */
- init_check_module_version(module);
-
- /* On the first call of this routine, initialize some data structures. */
- if (!previous_constructors)
- {
- /* Initialize thread-safe system */
- __objc_init_thread_system();
- __objc_runtime_threads_alive = 1;
- __objc_runtime_mutex = objc_mutex_allocate();
-
- __objc_init_selector_tables();
- __objc_init_class_tables();
- __objc_init_dispatch_tables();
- __objc_class_tree_list = list_cons (NULL, __objc_class_tree_list);
- __objc_load_methods
- = hash_new (128, (hash_func_type)hash_ptr, compare_ptrs);
- previous_constructors = 1;
- }
-
- /* Save the module pointer for later processing. (not currently used) */
- objc_mutex_lock(__objc_runtime_mutex);
- __objc_module_list = list_cons(module, __objc_module_list);
-
- /* Replace referenced selectors from names to SEL's. */
- if (selectors)
- {
- for (i = 0; selectors[i].sel_id; ++i)
- {
- const char *name, *type;
- name = (char*)selectors[i].sel_id;
- type = (char*)selectors[i].sel_types;
- /* Constructors are constant static data so we can safely store
- pointers to them in the runtime structures. is_const == YES */
- __sel_register_typed_name (name, type,
- (struct objc_selector*)&(selectors[i]),
- YES);
- }
- }
-
- /* Parse the classes in the load module and gather selector information. */
- DEBUG_PRINTF ("gathering selectors from module: %s\n", module->name);
- for (i = 0; i < symtab->cls_def_cnt; ++i)
- {
- Class class = (Class) symtab->defs[i];
- const char* superclass = (char*)class->super_class;
-
- /* Make sure we have what we think. */
- assert (CLS_ISCLASS(class));
- assert (CLS_ISMETA(class->class_pointer));
- DEBUG_PRINTF ("phase 1, processing class: %s\n", class->name);
-
- /* Initialize the subclass list to be NULL.
- In some cases it isn't and this crashes the program. */
- class->subclass_list = NULL;
-
- /* Store the class in the class table and assign class numbers. */
- __objc_add_class_to_hash (class);
-
- /* Register all of the selectors in the class and meta class. */
- __objc_register_selectors_from_class (class);
- __objc_register_selectors_from_class ((Class) class->class_pointer);
-
- /* Install the fake dispatch tables */
- __objc_install_premature_dtable(class);
- __objc_install_premature_dtable(class->class_pointer);
-
- /* Register the instance methods as class methods, this is
- only done for root classes. */
- __objc_register_instance_methods_to_class(class);
-
- if (class->protocols)
- __objc_init_protocols (class->protocols);
-
- /* Check to see if the superclass is known in this point. If it's not
- add the class to the unresolved_classes list. */
- if (superclass && !objc_lookup_class (superclass))
- unresolved_classes = list_cons (class, unresolved_classes);
- }
-
- /* Process category information from the module. */
- for (i = 0; i < symtab->cat_def_cnt; ++i)
- {
- Category_t category = symtab->defs[i + symtab->cls_def_cnt];
- Class class = objc_lookup_class (category->class_name);
-
- /* If the class for the category exists then append its methods. */
- if (class)
- {
-
- DEBUG_PRINTF ("processing categories from (module,object): %s, %s\n",
- module->name,
- class->name);
-
- /* Do instance methods. */
- if (category->instance_methods)
- class_add_method_list (class, category->instance_methods);
-
- /* Do class methods. */
- if (category->class_methods)
- class_add_method_list ((Class) class->class_pointer,
- category->class_methods);
-
- if (category->protocols)
- {
- __objc_init_protocols (category->protocols);
- __objc_class_add_protocols (class, category->protocols);
- }
-
- /* Register the instance methods as class methods, this is
- only done for root classes. */
- __objc_register_instance_methods_to_class(class);
- }
- else
- {
- /* The object to which the category methods belong can't be found.
- Save the information. */
- unclaimed_categories = list_cons(category, unclaimed_categories);
- }
- }
-
- if (statics)
- uninitialized_statics = list_cons (statics, uninitialized_statics);
- if (uninitialized_statics)
- objc_init_statics ();
-
- /* Scan the unclaimed category hash. Attempt to attach any unclaimed
- categories to objects. */
- for (cell = &unclaimed_categories; *cell; )
- {
- Category_t category = (*cell)->head;
- Class class = objc_lookup_class (category->class_name);
-
- if (class)
- {
- DEBUG_PRINTF ("attaching stored categories to object: %s\n",
- class->name);
-
- list_remove_head (cell);
-
- if (category->instance_methods)
- class_add_method_list (class, category->instance_methods);
-
- if (category->class_methods)
- class_add_method_list ((Class) class->class_pointer,
- category->class_methods);
-
- if (category->protocols)
- {
- __objc_init_protocols (category->protocols);
- __objc_class_add_protocols (class, category->protocols);
- }
-
- /* Register the instance methods as class methods, this is
- only done for root classes. */
- __objc_register_instance_methods_to_class(class);
- }
- else
- cell = &(*cell)->tail;
- }
-
- if (unclaimed_proto_list && objc_lookup_class ("Protocol"))
- {
- list_mapcar (unclaimed_proto_list,(void(*)(void*))__objc_init_protocols);
- list_free (unclaimed_proto_list);
- unclaimed_proto_list = 0;
- }
-
- objc_send_load ();
-
- objc_mutex_unlock(__objc_runtime_mutex);
-}
-
-static void objc_send_load (void)
-{
- if (!__objc_module_list)
- return;
-
- /* Try to find out if all the classes loaded so far also have their
- superclasses known to the runtime. We suppose that the objects that are
- allocated in the +load method are in general of a class declared in the
- same module. */
- if (unresolved_classes)
- {
- Class class = unresolved_classes->head;
-
- while (objc_lookup_class ((char*)class->super_class))
- {
- list_remove_head (&unresolved_classes);
- if (unresolved_classes)
- class = unresolved_classes->head;
- else
- break;
- }
-
- /*
- * If we still have classes for whom we don't have yet their super
- * classes known to the runtime we don't send the +load messages.
- */
- if (unresolved_classes)
- return;
- }
-
- /* Special check to allow creating and sending messages to constant strings
- in +load methods. If these classes are not yet known, even if all the
- other classes are known, delay sending of +load. */
- if (!objc_lookup_class ("NXConstantString") ||
- !objc_lookup_class ("Object"))
- return;
-
- /* Iterate over all modules in the __objc_module_list and call on them the
- __objc_create_classes_tree function. This function creates a tree of
- classes that resembles the class hierarchy. */
- list_mapcar (__objc_module_list, (void(*)(void*))__objc_create_classes_tree);
-
- while (__objc_class_tree_list)
- {
-#ifdef DEBUG
- objc_preorder_traverse (__objc_class_tree_list->head,
- 0, __objc_tree_print);
-#endif
- objc_preorder_traverse (__objc_class_tree_list->head,
- 0, __objc_send_load);
- objc_postorder_traverse (__objc_class_tree_list->head,
- 0, __objc_destroy_class_tree_node);
- list_remove_head (&__objc_class_tree_list);
- }
-
- list_mapcar (__objc_module_list, (void(*)(void*))__objc_call_callback);
- list_free (__objc_module_list);
- __objc_module_list = NULL;
-}
-
-static void
-__objc_create_classes_tree (Module_t module)
-{
- /* The runtime mutex is locked in this point */
-
- Symtab_t symtab = module->symtab;
- int i;
-
- /* Iterate thru classes defined in this module and insert them in the classes
- tree hierarchy. */
- for (i = 0; i < symtab->cls_def_cnt; i++)
- {
- Class class = (Class) symtab->defs[i];
-
- objc_tree_insert_class (class);
- }
-}
-
-static void
-__objc_call_callback (Module_t module)
-{
- /* The runtime mutex is locked in this point */
-
- Symtab_t symtab = module->symtab;
- int i;
-
- /* Iterate thru classes defined in this module and call the callback for
- each one. */
- for (i = 0; i < symtab->cls_def_cnt; i++)
- {
- Class class = (Class) symtab->defs[i];
-
- /* Call the _objc_load_callback for this class. */
- if (_objc_load_callback)
- _objc_load_callback(class, 0);
- }
-
- /* Call the _objc_load_callback for categories. Don't register the instance
- methods as class methods for categories to root classes since they were
- already added in the class. */
- for (i = 0; i < symtab->cat_def_cnt; i++)
- {
- Category_t category = symtab->defs[i + symtab->cls_def_cnt];
- Class class = objc_lookup_class (category->class_name);
-
- if (_objc_load_callback)
- _objc_load_callback(class, category);
- }
-}
-
-/* Sanity check the version of gcc used to compile `module'*/
-static void init_check_module_version(Module_t module)
-{
- if ((module->version != OBJC_VERSION) || (module->size != sizeof (Module)))
- {
- int code;
-
- if(module->version > OBJC_VERSION)
- code = OBJC_ERR_OBJC_VERSION;
- else if (module->version < OBJC_VERSION)
- code = OBJC_ERR_GCC_VERSION;
- else
- code = OBJC_ERR_MODULE_SIZE;
-
- objc_error(nil, code, "Module %s version %d doesn't match runtime %d\n",
- module->name, (int)module->version, OBJC_VERSION);
- }
-}
-
-static void
-__objc_init_protocols (struct objc_protocol_list* protos)
-{
- int i;
- static Class proto_class = 0;
-
- if (! protos)
- return;
-
- objc_mutex_lock(__objc_runtime_mutex);
-
- if (!proto_class)
- proto_class = objc_lookup_class("Protocol");
-
- if (!proto_class)
- {
- unclaimed_proto_list = list_cons (protos, unclaimed_proto_list);
- objc_mutex_unlock(__objc_runtime_mutex);
- return;
- }
-
-#if 0
- assert (protos->next == 0); /* only single ones allowed */
-#endif
-
- for(i = 0; i < protos->count; i++)
- {
- struct objc_protocol* aProto = protos->list[i];
- if (((size_t)aProto->class_pointer) == PROTOCOL_VERSION)
- {
- /* assign class pointer */
- aProto->class_pointer = proto_class;
-
- /* init super protocols */
- __objc_init_protocols (aProto->protocol_list);
- }
- else if (protos->list[i]->class_pointer != proto_class)
- {
- objc_error(nil, OBJC_ERR_PROTOCOL_VERSION,
- "Version %d doesn't match runtime protocol version %d\n",
- (int)((char*)protos->list[i]->class_pointer-(char*)0),
- PROTOCOL_VERSION);
- }
- }
-
- objc_mutex_unlock(__objc_runtime_mutex);
-}
-
-static void __objc_class_add_protocols (Class class,
- struct objc_protocol_list* protos)
-{
- /* Well... */
- if (! protos)
- return;
-
- /* Add it... */
- protos->next = class->protocols;
- class->protocols = protos;
-}
projects / msp430-gcc.git / blobdiff