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In gcc/:
[pf3gnuchains/gcc-fork.git] / gcc / objc / objc-act.c
index 463ceed..ab0f34a 100644 (file)
@@ -185,7 +185,6 @@ static tree build_protocol_initializer (tree, tree, tree, tree, tree);
 static tree get_class_ivars (tree, bool);
 static tree generate_protocol_list (tree);
 static void build_protocol_reference (tree);
-static tree objc_build_volatilized_type (tree);
 
 #ifdef OBJCPLUS
 static void objc_generate_cxx_cdtors (void);
@@ -821,7 +820,7 @@ objc_build_struct (tree class, tree fields, tree super_name)
         in the class.  */
       DECL_SIZE (base)
        = (field && TREE_CODE (field) == FIELD_DECL
-          ? size_binop (PLUS_EXPR, 
+          ? size_binop (PLUS_EXPR,
                         size_binop (PLUS_EXPR,
                                     size_binop
                                     (MULT_EXPR,
@@ -912,7 +911,7 @@ objc_build_volatilized_type (tree type)
      a new one.  */
   t = build_variant_type_copy (type);
   TYPE_VOLATILE (t) = 1;
-  
+
   return t;
 }
 
@@ -1434,12 +1433,12 @@ lookup_and_install_protocols (tree protocols)
       tree ident = TREE_VALUE (proto);
       tree p = lookup_protocol (ident);
 
-      if (!p)
-       error ("cannot find protocol declaration for %qs",
-              IDENTIFIER_POINTER (ident));
-      else
+      if (p)
        return_value = chainon (return_value,
                                build_tree_list (NULL_TREE, p));
+      else if (ident != error_mark_node)
+       error ("cannot find protocol declaration for %qs",
+              IDENTIFIER_POINTER (ident));
     }
 
   return return_value;
@@ -1540,7 +1539,7 @@ synth_module_prologue (void)
 
   objc_object_reference = xref_tag (RECORD_TYPE, objc_object_id);
   objc_class_reference = xref_tag (RECORD_TYPE, objc_class_id);
-  
+
   objc_object_type = build_pointer_type (objc_object_reference);
   objc_class_type = build_pointer_type (objc_class_reference);
 
@@ -1617,18 +1616,18 @@ synth_module_prologue (void)
                               tree_cons (NULL_TREE, objc_object_type,
                                          tree_cons (NULL_TREE, objc_selector_type,
                                                     NULL_TREE)));
-      umsg_decl = builtin_function (TAG_MSGSEND,
-                                   type, 0, NOT_BUILT_IN,
-                                   NULL, NULL_TREE);
-      umsg_nonnil_decl = builtin_function (TAG_MSGSEND_NONNIL,
-                                          type, 0, NOT_BUILT_IN,
-                                          NULL, NULL_TREE);
-      umsg_stret_decl = builtin_function (TAG_MSGSEND_STRET,
-                                         type, 0, NOT_BUILT_IN,
-                                         NULL, NULL_TREE);
-      umsg_nonnil_stret_decl = builtin_function (TAG_MSGSEND_NONNIL_STRET,
-                                                type, 0, NOT_BUILT_IN,
-                                                NULL, NULL_TREE);
+      umsg_decl = add_builtin_function (TAG_MSGSEND,
+                                       type, 0, NOT_BUILT_IN,
+                                       NULL, NULL_TREE);
+      umsg_nonnil_decl = add_builtin_function (TAG_MSGSEND_NONNIL,
+                                              type, 0, NOT_BUILT_IN,
+                                              NULL, NULL_TREE);
+      umsg_stret_decl = add_builtin_function (TAG_MSGSEND_STRET,
+                                             type, 0, NOT_BUILT_IN,
+                                             NULL, NULL_TREE);
+      umsg_nonnil_stret_decl = add_builtin_function (TAG_MSGSEND_NONNIL_STRET,
+                                                    type, 0, NOT_BUILT_IN,
+                                                    NULL, NULL_TREE);
 
       /* These can throw, because the function that gets called can throw
         in Obj-C++, or could itself call something that can throw even
@@ -1641,12 +1640,12 @@ synth_module_prologue (void)
       /* id objc_msgSend_Fast (id, SEL, ...)
           __attribute__ ((hard_coded_address (OFFS_MSGSEND_FAST))); */
 #ifdef OFFS_MSGSEND_FAST
-      umsg_fast_decl = builtin_function (TAG_MSGSEND_FAST,
-                                        type, 0, NOT_BUILT_IN,
-                                        NULL, NULL_TREE);
+      umsg_fast_decl = add_builtin_function (TAG_MSGSEND_FAST,
+                                            type, 0, NOT_BUILT_IN,
+                                            NULL, NULL_TREE);
       TREE_NOTHROW (umsg_fast_decl) = 0;
-      DECL_ATTRIBUTES (umsg_fast_decl) 
-       = tree_cons (get_identifier ("hard_coded_address"), 
+      DECL_ATTRIBUTES (umsg_fast_decl)
+       = tree_cons (get_identifier ("hard_coded_address"),
                     build_int_cst (NULL_TREE, OFFS_MSGSEND_FAST),
                     NULL_TREE);
 #else
@@ -1661,12 +1660,12 @@ synth_module_prologue (void)
                               tree_cons (NULL_TREE, objc_super_type,
                                          tree_cons (NULL_TREE, objc_selector_type,
                                                     NULL_TREE)));
-      umsg_super_decl = builtin_function (TAG_MSGSENDSUPER,
-                                         type, 0, NOT_BUILT_IN,
-                                         NULL, NULL_TREE);
-      umsg_super_stret_decl = builtin_function (TAG_MSGSENDSUPER_STRET,
-                                               type, 0, NOT_BUILT_IN, 0,
-                                               NULL_TREE);
+      umsg_super_decl = add_builtin_function (TAG_MSGSENDSUPER,
+                                             type, 0, NOT_BUILT_IN,
+                                             NULL, NULL_TREE);
+      umsg_super_stret_decl = add_builtin_function (TAG_MSGSENDSUPER_STRET,
+                                                   type, 0, NOT_BUILT_IN, 0,
+                                                   NULL_TREE);
       TREE_NOTHROW (umsg_super_decl) = 0;
       TREE_NOTHROW (umsg_super_stret_decl) = 0;
     }
@@ -1677,10 +1676,10 @@ synth_module_prologue (void)
       /* typedef id (*IMP)(id, SEL, ...); */
       tree IMP_type
        = build_pointer_type
-         (build_function_type (objc_object_type,      
-                               tree_cons (NULL_TREE, objc_object_type,      
-                                          tree_cons (NULL_TREE, objc_selector_type,      
-                                                     NULL_TREE))));      
+         (build_function_type (objc_object_type,
+                               tree_cons (NULL_TREE, objc_object_type,
+                                          tree_cons (NULL_TREE, objc_selector_type,
+                                                     NULL_TREE))));
 
       /* IMP objc_msg_lookup (id, SEL); */
       type
@@ -1688,9 +1687,9 @@ synth_module_prologue (void)
                               tree_cons (NULL_TREE, objc_object_type,
                                          tree_cons (NULL_TREE, objc_selector_type,
                                                     OBJC_VOID_AT_END)));
-      umsg_decl = builtin_function (TAG_MSGSEND,
-                                   type, 0, NOT_BUILT_IN,
-                                   NULL, NULL_TREE);
+      umsg_decl = add_builtin_function (TAG_MSGSEND,
+                                       type, 0, NOT_BUILT_IN,
+                                       NULL, NULL_TREE);
       TREE_NOTHROW (umsg_decl) = 0;
 
       /* IMP objc_msg_lookup_super (struct objc_super *, SEL); */
@@ -1699,9 +1698,9 @@ synth_module_prologue (void)
                               tree_cons (NULL_TREE, objc_super_type,
                                          tree_cons (NULL_TREE, objc_selector_type,
                                                     OBJC_VOID_AT_END)));
-      umsg_super_decl = builtin_function (TAG_MSGSENDSUPER,
-                                         type, 0, NOT_BUILT_IN,
-                                         NULL, NULL_TREE);
+      umsg_super_decl = add_builtin_function (TAG_MSGSENDSUPER,
+                                             type, 0, NOT_BUILT_IN,
+                                             NULL, NULL_TREE);
       TREE_NOTHROW (umsg_super_decl) = 0;
 
       /* The following GNU runtime entry point is called to initialize
@@ -1712,9 +1711,9 @@ synth_module_prologue (void)
        = build_function_type (void_type_node,
                               tree_cons (NULL_TREE, ptr_type_node,
                                          OBJC_VOID_AT_END));
-      execclass_decl = builtin_function (TAG_EXECCLASS,
-                                        type, 0, NOT_BUILT_IN,
-                                        NULL, NULL_TREE);
+      execclass_decl = add_builtin_function (TAG_EXECCLASS,
+                                            type, 0, NOT_BUILT_IN,
+                                            NULL, NULL_TREE);
     }
 
   /* id objc_getClass (const char *); */
@@ -1725,13 +1724,13 @@ synth_module_prologue (void)
                                              OBJC_VOID_AT_END));
 
   objc_get_class_decl
-    = builtin_function (TAG_GETCLASS, type, 0, NOT_BUILT_IN,
-                       NULL, NULL_TREE);
+    = add_builtin_function (TAG_GETCLASS, type, 0, NOT_BUILT_IN,
+                           NULL, NULL_TREE);
 
   /* id objc_getMetaClass (const char *); */
 
   objc_get_meta_class_decl
-    = builtin_function (TAG_GETMETACLASS, type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
+    = add_builtin_function (TAG_GETMETACLASS, type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
 
   build_class_template ();
   build_super_template ();
@@ -2254,9 +2253,10 @@ init_module_descriptor (tree type)
                  size_in_bytes (objc_module_template));
   initlist = tree_cons (NULL_TREE, expr, initlist);
 
-  /* name = { ..., "foo.m", ... } */
+  /* Don't provide any file name for security reasons. */
+  /* name = { ..., "", ... } */
 
-  expr = add_objc_string (get_identifier (input_filename), class_names);
+  expr = add_objc_string (get_identifier (""), class_names);
   initlist = tree_cons (NULL_TREE, expr, initlist);
 
   /* symtab = { ..., _OBJC_SYMBOLS, ... } */
@@ -2323,7 +2323,7 @@ build_module_descriptor (void)
 
    static void __objc_gnu_init (void) {
      __objc_exec_class (&L_OBJC_MODULES);
-   }  */ 
+   }  */
 
 static void
 build_module_initializer_routine (void)
@@ -2332,7 +2332,7 @@ build_module_initializer_routine (void)
 
 #ifdef OBJCPLUS
   push_lang_context (lang_name_c); /* extern "C" */
-#endif                                     
+#endif
 
   objc_push_parm (build_decl (PARM_DECL, NULL_TREE, void_type_node));
   objc_start_function (get_identifier (TAG_GNUINIT),
@@ -2577,7 +2577,7 @@ build_selector_translation_table (void)
                               tree_cons (NULL_TREE,
                                          build_int_cst (NULL_TREE, 0),
                                          tree_cons (NULL_TREE,
-                                                    build_int_cst (NULL_TREE, 0), 
+                                                    build_int_cst (NULL_TREE, 0),
                                                     NULL_TREE)))
                            : build_int_cst (NULL_TREE, 0), initlist);
       initlist = objc_build_constructor (TREE_TYPE (UOBJC_SELECTOR_TABLE_decl),
@@ -2804,11 +2804,11 @@ add_objc_string (tree ident, enum string_section section)
     }
 
   decl = build_objc_string_decl (section);
-  
+
   type = build_array_type
         (char_type_node,
          build_index_type
-         (build_int_cst (NULL_TREE, 
+         (build_int_cst (NULL_TREE,
                          IDENTIFIER_LENGTH (ident))));
   decl = start_var_decl (type, IDENTIFIER_POINTER (DECL_NAME (decl)));
   string_expr = my_build_string (IDENTIFIER_LENGTH (ident) + 1,
@@ -2848,7 +2848,7 @@ build_objc_string_decl (enum string_section section)
   DECL_ARTIFICIAL (decl) = 1;
 #ifdef OBJCPLUS
   DECL_THIS_STATIC (decl) = 1; /* squash redeclaration errors */
-#endif  
+#endif
 
   make_decl_rtl (decl);
   pushdecl_top_level (decl);
@@ -2985,7 +2985,7 @@ objc_is_id (tree type)
   return (objc_object_type && type
          && (IS_ID (type) || IS_CLASS (type) || IS_SUPER (type))
          ? type
-         : NULL_TREE); 
+         : NULL_TREE);
 }
 
 /* Check whether TYPE is either 'id', 'Class', or a pointer to an ObjC
@@ -3011,7 +3011,7 @@ objc_is_object_ptr (tree type)
 static int
 objc_is_gcable_type (tree type, int or_strong_p)
 {
-  tree name; 
+  tree name;
 
   if (!TYPE_P (type))
     return 0;
@@ -3074,7 +3074,7 @@ objc_build_ivar_assignment (tree outervar, tree lhs, tree rhs)
 
   offs = convert (integer_type_node, build_unary_op (ADDR_EXPR, offs, 0));
   offs = fold (offs);
-  func_params = tree_cons (NULL_TREE, 
+  func_params = tree_cons (NULL_TREE,
        convert (objc_object_type, rhs),
            tree_cons (NULL_TREE, convert (objc_object_type, outervar),
                tree_cons (NULL_TREE, offs,
@@ -3103,7 +3103,7 @@ objc_build_strong_cast_assignment (tree lhs, tree rhs)
   tree func_params = tree_cons (NULL_TREE,
        convert (objc_object_type, rhs),
            tree_cons (NULL_TREE, convert (build_pointer_type (objc_object_type),
-                     build_unary_op (ADDR_EXPR, lhs, 0)), 
+                     build_unary_op (ADDR_EXPR, lhs, 0)),
                    NULL_TREE));
 
   assemble_external (objc_assign_strong_cast_decl);
@@ -3215,7 +3215,7 @@ objc_generate_write_barrier (tree lhs, enum tree_code modifycode, tree rhs)
     }
 
   outer_gc_p = objc_is_gcable_p (outer);
-  
+
   /* Handle ivar assignments. */
   if (objc_is_ivar_reference_p (lhs))
     {
@@ -3249,7 +3249,7 @@ objc_generate_write_barrier (tree lhs, enum tree_code modifycode, tree rhs)
     }
 
   /* Likewise, intercept assignment to global/static variables if their type is
-     GC-marked.  */    
+     GC-marked.  */
   if (objc_is_global_reference_p (outer))
     {
       if (indirect_p)
@@ -3375,7 +3375,7 @@ static tree
 objc_create_temporary_var (tree type)
 {
   tree decl;
+
   decl = build_decl (VAR_DECL, NULL_TREE, type);
   TREE_USED (decl) = 1;
   DECL_ARTIFICIAL (decl) = 1;
@@ -3539,10 +3539,10 @@ next_sjlj_build_enter_and_setjmp (void)
   return build3 (COND_EXPR, void_type_node, cond, NULL, NULL);
 }
 
-/* Build
-       DECL = objc_exception_extract(&_stack);
-*/
-   
+/* Build:
+
+   DECL = objc_exception_extract(&_stack);  */
+
 static tree
 next_sjlj_build_exc_extract (tree decl)
 {
@@ -3762,10 +3762,10 @@ objc_begin_try_stmt (location_t try_locus, tree body)
     objc_mark_locals_volatile (NULL);
 }
 
-/* Called just after parsing "@catch (parm)".  Open a binding level, 
+/* Called just after parsing "@catch (parm)".  Open a binding level,
    enter DECL into the binding level, and initialize it.  Leave the
    binding level open while the body of the compound statement is parsed.  */
-   
+
 void
 objc_begin_catch_clause (tree decl)
 {
@@ -3953,19 +3953,16 @@ objc_build_synchronized (location_t start_locus, tree mutex, tree body)
 
    struct _objc_exception_data
    {
-     int buf[_JBLEN];
+     int buf[OBJC_JBLEN];
      void *pointers[4];
    }; */
 
 /* The following yuckiness should prevent users from having to #include
    <setjmp.h> in their code... */
 
-#ifdef TARGET_POWERPC
-/* snarfed from /usr/include/ppc/setjmp.h */
-#define _JBLEN (26 + 36 + 129 + 1)
-#else
-/* snarfed from /usr/include/i386/{setjmp,signal}.h */
-#define _JBLEN 18
+/* Define to a harmless positive value so the below code doesn't die.  */
+#ifndef OBJC_JBLEN
+#define OBJC_JBLEN 18
 #endif
 
 static void
@@ -3976,9 +3973,9 @@ build_next_objc_exception_stuff (void)
   objc_exception_data_template
     = start_struct (RECORD_TYPE, get_identifier (UTAG_EXCDATA));
 
-  /* int buf[_JBLEN]; */
+  /* int buf[OBJC_JBLEN]; */
 
-  index = build_index_type (build_int_cst (NULL_TREE, _JBLEN - 1));
+  index = build_index_type (build_int_cst (NULL_TREE, OBJC_JBLEN - 1));
   field_decl = create_field_decl (build_array_type (integer_type_node, index),
                                  "buf");
   field_decl_chain = field_decl;
@@ -3997,7 +3994,7 @@ build_next_objc_exception_stuff (void)
      'int _setjmp(jmp_buf);' */
   temp_type = build_function_type (integer_type_node, NULL_TREE);
   objc_setjmp_decl
-    = builtin_function (TAG_SETJMP, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
+    = add_builtin_function (TAG_SETJMP, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
 
   /* id objc_exception_extract(struct _objc_exception_data *); */
   temp_type
@@ -4006,7 +4003,8 @@ build_next_objc_exception_stuff (void)
                                      build_pointer_type (objc_exception_data_template),
                                      OBJC_VOID_AT_END));
   objc_exception_extract_decl
-    = builtin_function (TAG_EXCEPTIONEXTRACT, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
+    = add_builtin_function (TAG_EXCEPTIONEXTRACT, temp_type, 0, NOT_BUILT_IN, NULL,
+                           NULL_TREE);
   /* void objc_exception_try_enter(struct _objc_exception_data *); */
   /* void objc_exception_try_exit(struct _objc_exception_data *); */
   temp_type
@@ -4015,18 +4013,21 @@ build_next_objc_exception_stuff (void)
                                      build_pointer_type (objc_exception_data_template),
                                      OBJC_VOID_AT_END));
   objc_exception_try_enter_decl
-    = builtin_function (TAG_EXCEPTIONTRYENTER, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
+    = add_builtin_function (TAG_EXCEPTIONTRYENTER, temp_type, 0, NOT_BUILT_IN, NULL,
+                           NULL_TREE);
   objc_exception_try_exit_decl
-    = builtin_function (TAG_EXCEPTIONTRYEXIT, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
+    = add_builtin_function (TAG_EXCEPTIONTRYEXIT, temp_type, 0, NOT_BUILT_IN, NULL,
+                           NULL_TREE);
 
   /* int objc_exception_match(id, id); */
-  temp_type 
+  temp_type
     = build_function_type (integer_type_node,
                           tree_cons (NULL_TREE, objc_object_type,
                                      tree_cons (NULL_TREE, objc_object_type,
                                                 OBJC_VOID_AT_END)));
   objc_exception_match_decl
-    = builtin_function (TAG_EXCEPTIONMATCH, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
+    = add_builtin_function (TAG_EXCEPTIONMATCH, temp_type, 0, NOT_BUILT_IN, NULL,
+                           NULL_TREE);
 
   /* id objc_assign_ivar (id, id, unsigned int); */
   /* id objc_assign_ivar_Fast (id, id, unsigned int)
@@ -4040,14 +4041,14 @@ build_next_objc_exception_stuff (void)
                                                  unsigned_type_node,
                                                  OBJC_VOID_AT_END))));
   objc_assign_ivar_decl
-    = builtin_function (TAG_ASSIGNIVAR, temp_type, 0, NOT_BUILT_IN,
-                       NULL, NULL_TREE);
+    = add_builtin_function (TAG_ASSIGNIVAR, temp_type, 0, NOT_BUILT_IN,
+                           NULL, NULL_TREE);
 #ifdef OFFS_ASSIGNIVAR_FAST
   objc_assign_ivar_fast_decl
-    = builtin_function (TAG_ASSIGNIVAR_FAST, temp_type, 0,
-                       NOT_BUILT_IN, NULL, NULL_TREE);
-  DECL_ATTRIBUTES (objc_assign_ivar_fast_decl) 
-    = tree_cons (get_identifier ("hard_coded_address"), 
+    = add_builtin_function (TAG_ASSIGNIVAR_FAST, temp_type, 0,
+                           NOT_BUILT_IN, NULL, NULL_TREE);
+  DECL_ATTRIBUTES (objc_assign_ivar_fast_decl)
+    = tree_cons (get_identifier ("hard_coded_address"),
                 build_int_cst (NULL_TREE, OFFS_ASSIGNIVAR_FAST),
                 NULL_TREE);
 #else
@@ -4062,9 +4063,11 @@ build_next_objc_exception_stuff (void)
                    tree_cons (NULL_TREE, build_pointer_type (objc_object_type),
                        OBJC_VOID_AT_END)));
   objc_assign_global_decl
-       = builtin_function (TAG_ASSIGNGLOBAL, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
+       = add_builtin_function (TAG_ASSIGNGLOBAL, temp_type, 0, NOT_BUILT_IN, NULL,
+                               NULL_TREE);
   objc_assign_strong_cast_decl
-       = builtin_function (TAG_ASSIGNSTRONGCAST, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
+       = add_builtin_function (TAG_ASSIGNSTRONGCAST, temp_type, 0, NOT_BUILT_IN, NULL,
+                               NULL_TREE);
 }
 
 static void
@@ -4082,14 +4085,14 @@ build_objc_exception_stuff (void)
                                   tree_cons (NULL_TREE, objc_object_type,
                                              OBJC_VOID_AT_END));
   objc_exception_throw_decl
-    = builtin_function (TAG_EXCEPTIONTHROW, temp_type, 0, NOT_BUILT_IN, NULL,
-                       noreturn_list);
+    = add_builtin_function (TAG_EXCEPTIONTHROW, temp_type, 0, NOT_BUILT_IN, NULL,
+                           noreturn_list);
   objc_sync_enter_decl
-    = builtin_function (TAG_SYNCENTER, temp_type, 0, NOT_BUILT_IN,
-                       NULL, nothrow_list);
+    = add_builtin_function (TAG_SYNCENTER, temp_type, 0, NOT_BUILT_IN,
+                           NULL, nothrow_list);
   objc_sync_exit_decl
-    = builtin_function (TAG_SYNCEXIT, temp_type, 0, NOT_BUILT_IN,
-                       NULL, nothrow_list);
+    = add_builtin_function (TAG_SYNCEXIT, temp_type, 0, NOT_BUILT_IN,
+                           NULL, nothrow_list);
 }
 
 /* Construct a C struct corresponding to ObjC class CLASS, with the same
@@ -5194,6 +5197,7 @@ generate_ivars_list (tree type, const char *name, int size, tree list)
 }
 
 /* Count only the fields occurring in T.  */
+
 static int
 ivar_list_length (tree t)
 {
@@ -5277,7 +5281,7 @@ build_dispatch_table_initializer (tree type, tree entries)
 
       elemlist
        = tree_cons (NULL_TREE,
-                    convert (ptr_type_node, 
+                    convert (ptr_type_node,
                              build_unary_op (ADDR_EXPR,
                                              METHOD_DEFINITION (entries), 1)),
                     elemlist);
@@ -5523,7 +5527,7 @@ build_category_initializer (tree type, tree cat_name, tree class_name,
   else
     {
       expr = convert (build_pointer_type
-                     (build_pointer_type 
+                     (build_pointer_type
                       (objc_protocol_template)),
                      build_unary_op (ADDR_EXPR, protocol_list, 0));
       initlist = tree_cons (NULL_TREE, expr, initlist);
@@ -5625,7 +5629,7 @@ build_shared_structure_initializer (tree type, tree isa, tree super,
   else
     {
       expr = convert (build_pointer_type
-                     (build_pointer_type 
+                     (build_pointer_type
                       (objc_protocol_template)),
                      build_unary_op (ADDR_EXPR, protocol_list, 0));
       initlist = tree_cons (NULL_TREE, expr, initlist);
@@ -6071,12 +6075,12 @@ check_duplicates (hash hsh, int methods, int is_class)
          warn_with_method (methods ? "using" : "found",
                            ((TREE_CODE (meth) == INSTANCE_METHOD_DECL)
                             ? '-'
-                            : '+'), 
+                            : '+'),
                            meth);
          for (loop = hsh->list; loop; loop = loop->next)
            warn_with_method ("also found",
                              ((TREE_CODE (loop->value) == INSTANCE_METHOD_DECL)
-                              ? '-' 
+                              ? '-'
                               : '+'),
                              loop->value);
         }
@@ -6233,7 +6237,7 @@ lookup_method_in_hash_lists (tree sel_name, int is_class)
   if (!is_class)
     method_prototype = hash_lookup (nst_method_hash_list,
                                    sel_name);
-                                       
+
   if (!method_prototype)
     {
       method_prototype = hash_lookup (cls_method_hash_list,
@@ -6372,7 +6376,7 @@ objc_finish_message_expr (tree receiver, tree sel_name, tree method_params)
             exist locally as part of the @implementation.  */
          if (!method_prototype && objc_implementation_context
             && CLASS_NAME (objc_implementation_context)
-               == OBJC_TYPE_NAME (rtype))                      
+               == OBJC_TYPE_NAME (rtype))
            method_prototype
              = lookup_method
                ((class_tree
@@ -6395,7 +6399,7 @@ objc_finish_message_expr (tree receiver, tree sel_name, tree method_params)
             lookup as if we were messaging 'id'.  */
          rtype = rprotos = NULL_TREE;
        }
-    }  
+    }
 
 
   /* For 'id' or 'Class' receivers, search in the global hash table
@@ -6495,7 +6499,7 @@ build_objc_method_call (int super_flag, tree method_prototype,
   tree method, t;
 
   lookup_object = build_c_cast (rcv_p, lookup_object);
-    
+
   /* Use SAVE_EXPR to avoid evaluating the receiver twice.  */
   lookup_object = save_expr (lookup_object);
 
@@ -6525,7 +6529,7 @@ build_objc_method_call (int super_flag, tree method_prototype,
 
       /* First, call the lookup function to get a pointer to the method,
         then cast the pointer, then call it with the method arguments.  */
-      
+
       object = (super_flag ? self_decl : lookup_object);
 
       t = tree_cons (NULL_TREE, selector, NULL_TREE);
@@ -6819,13 +6823,13 @@ lookup_method (tree mchain, tree method)
 /* Look up a class (if OBJC_LOOKUP_CLASS is set in FLAGS) or instance method
    in INTERFACE, along with any categories and protocols attached thereto.
    If method is not found, and the OBJC_LOOKUP_NO_SUPER is _not_ set in FLAGS,
-   recursively examine the INTERFACE's superclass.  If OBJC_LOOKUP_CLASS is 
+   recursively examine the INTERFACE's superclass.  If OBJC_LOOKUP_CLASS is
    set, OBJC_LOOKUP_NO_SUPER is cleared, and no suitable class method could
    be found in INTERFACE or any of its superclasses, look for an _instance_
    method of the same name in the root class as a last resort.
 
    If a suitable method cannot be found, return NULL_TREE.  */
-   
+
 static tree
 lookup_method_static (tree interface, tree ident, int flags)
 {
@@ -6888,6 +6892,7 @@ lookup_method_static (tree interface, tree ident, int flags)
 
 /* Add the method to the hash list if it doesn't contain an identical
    method already. */
+
 static void
 add_method_to_hash_list (hash *hash_list, tree method)
 {
@@ -6942,7 +6947,7 @@ objc_add_method (tree class, tree method, int is_class)
           || TREE_CODE (class) == CATEGORY_INTERFACE_TYPE)
          && !comp_proto_with_proto (method, mth, 1))
        error ("duplicate declaration of method %<%c%s%>",
-               is_class ? '+' : '-', 
+               is_class ? '+' : '-',
                IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
     }
 
@@ -7167,6 +7172,9 @@ objc_is_public (tree expr, tree identifier)
     return 1;
 #endif
 
+  if (TREE_TYPE (expr) == error_mark_node)
+    return 1;
+
   basetype = TYPE_MAIN_VARIANT (TREE_TYPE (expr));
 
   if (basetype && TREE_CODE (basetype) == RECORD_TYPE)
@@ -7223,7 +7231,7 @@ objc_is_public (tree expr, tree identifier)
                         TREE_PRIVATE (decl) ? "@private" : "@protected");
                return 1;
              }
-               
+
              error ("instance variable %qs is declared %s",
                     IDENTIFIER_POINTER (identifier),
                     TREE_PRIVATE (decl) ? "private" : "protected");
@@ -7547,7 +7555,7 @@ start_class (enum tree_code code, tree class_name, tree super_name,
        error ("duplicate interface declaration for class %qs",
 #else
        warning (0, "duplicate interface declaration for class %qs",
-#endif 
+#endif
         IDENTIFIER_POINTER (class_name));
       else
         add_class (class, class_name);
@@ -7922,7 +7930,7 @@ encode_array (tree type, int curtype, int format)
 
   if (TREE_INT_CST_LOW (TYPE_SIZE (array_of)) == 0)
    sprintf (buffer, "[" HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT)0);
-  else 
+  else
     sprintf (buffer, "[" HOST_WIDE_INT_PRINT_DEC,
             TREE_INT_CST_LOW (an_int_cst)
              / TREE_INT_CST_LOW (TYPE_SIZE (array_of)));
@@ -7948,7 +7956,7 @@ encode_aggregate_fields (tree type, int pointed_to, int curtype, int format)
 #endif
 
       /* Recursively encode fields of embedded base classes.  */
-      if (DECL_ARTIFICIAL (field) && !DECL_NAME (field) 
+      if (DECL_ARTIFICIAL (field) && !DECL_NAME (field)
          && TREE_CODE (TREE_TYPE (field)) == RECORD_TYPE)
        {
          encode_aggregate_fields (TREE_TYPE (field),
@@ -7993,7 +8001,7 @@ encode_aggregate_within (tree type, int curtype, int format, int left,
      original struct and its tag name (if any).  */
   type = TYPE_MAIN_VARIANT (type);
   name = OBJC_TYPE_NAME (type);
-  /* Open parenth/bracket.  */                         
+  /* Open parenth/bracket.  */
   obstack_1grow (&util_obstack, left);
 
   /* Encode the struct/union tag name, or '?' if a tag was
@@ -8017,7 +8025,7 @@ encode_aggregate_within (tree type, int curtype, int format, int left,
       obstack_1grow (&util_obstack, '=');
       encode_aggregate_fields (type, pointed_to, curtype, format);
     }
-  /* Close parenth/bracket.  */                        
+  /* Close parenth/bracket.  */
   obstack_1grow (&util_obstack, right);
 }
 
@@ -8075,7 +8083,7 @@ encode_type (tree type, int curtype, int format)
        {
        case 8:  c = TYPE_UNSIGNED (type) ? 'C' : 'c'; break;
        case 16: c = TYPE_UNSIGNED (type) ? 'S' : 's'; break;
-       case 32: 
+       case 32:
          if (type == long_unsigned_type_node
              || type == long_integer_type_node)
                 c = TYPE_UNSIGNED (type) ? 'L' : 'l';
@@ -8119,7 +8127,7 @@ encode_type (tree type, int curtype, int format)
 
   else if (code == FUNCTION_TYPE) /* '?' */
     obstack_1grow (&util_obstack, '?');
-    
+
   else if (code == COMPLEX_TYPE)
     {
       obstack_1grow (&util_obstack, 'j');
@@ -8221,11 +8229,22 @@ static GTY(()) tree objc_parmlist = NULL_TREE;
 static void
 objc_push_parm (tree parm)
 {
+  bool relayout_needed = false;
   /* Decay arrays and functions into pointers.  */
   if (TREE_CODE (TREE_TYPE (parm)) == ARRAY_TYPE)
-    TREE_TYPE (parm) = build_pointer_type (TREE_TYPE (TREE_TYPE (parm)));
+    {
+      TREE_TYPE (parm) = build_pointer_type (TREE_TYPE (TREE_TYPE (parm)));
+      relayout_needed = true;
+    }
   else if (TREE_CODE (TREE_TYPE (parm)) == FUNCTION_TYPE)
-    TREE_TYPE (parm) = build_pointer_type (TREE_TYPE (parm));
+    {
+      TREE_TYPE (parm) = build_pointer_type (TREE_TYPE (parm));
+      relayout_needed = true;
+    }
+
+  if (relayout_needed)
+    relayout_decl (parm);
+  
 
   DECL_ARG_TYPE (parm)
     = lang_hooks.types.type_promotes_to (TREE_TYPE (parm));
@@ -8235,7 +8254,7 @@ objc_push_parm (tree parm)
   ((TYPE_READONLY (TREE_TYPE (parm)) ? TYPE_QUAL_CONST : 0)
    | (TYPE_RESTRICT (TREE_TYPE (parm)) ? TYPE_QUAL_RESTRICT : 0)
    | (TYPE_VOLATILE (TREE_TYPE (parm)) ? TYPE_QUAL_VOLATILE : 0), parm);
-  
+
   objc_parmlist = chainon (objc_parmlist, parm);
 }
 
@@ -8266,7 +8285,7 @@ objc_get_parm_info (int have_ellipsis)
     {
       tree next = TREE_CHAIN (parm_info);
 
-      TREE_CHAIN (parm_info) = NULL_TREE; 
+      TREE_CHAIN (parm_info) = NULL_TREE;
       parm_info = pushdecl (parm_info);
       finish_decl (parm_info, NULL_TREE, NULL_TREE);
       parm_info = next;
@@ -8348,7 +8367,7 @@ start_method_def (tree method)
     {
       tree akey;
 
-      for (akey = TREE_CHAIN (METHOD_ADD_ARGS (method)); 
+      for (akey = TREE_CHAIN (METHOD_ADD_ARGS (method));
           akey; akey = TREE_CHAIN (akey))
        {
          objc_push_parm (TREE_VALUE (akey));
@@ -8830,7 +8849,7 @@ gen_declaration (tree decl)
        sprintf (errbuf + strlen (errbuf), ": " HOST_WIDE_INT_PRINT_DEC,
                 TREE_INT_CST_LOW (DECL_INITIAL (decl)));
     }
-  
+
   return errbuf;
 }
 
@@ -8852,7 +8871,7 @@ gen_type_name_0 (tree type)
        inner = TREE_TYPE (inner);
 
       gen_type_name_0 (inner);
-      
+
       if (!POINTER_TYPE_P (inner))
        strcat (errbuf, " ");
 
@@ -8868,7 +8887,7 @@ gen_type_name_0 (tree type)
                char sz[20];
 
                sprintf (sz, HOST_WIDE_INT_PRINT_DEC,
-                        (TREE_INT_CST_LOW 
+                        (TREE_INT_CST_LOW
                          (TYPE_MAX_VALUE (TYPE_DOMAIN (type))) + 1));
                strcat (errbuf, sz);
              }
@@ -8883,12 +8902,14 @@ gen_type_name_0 (tree type)
   if (TREE_CODE (type) == TYPE_DECL && DECL_NAME (type))
     type = DECL_NAME (type);
 
-  strcat (errbuf, IDENTIFIER_POINTER (type));
+  strcat (errbuf, TREE_CODE (type) == IDENTIFIER_NODE
+                 ? IDENTIFIER_POINTER (type)
+                 : "");
 
   /* For 'id' and 'Class', adopted protocols are stored in the pointee.  */
   if (objc_is_id (orig))
     orig = TREE_TYPE (orig);
-  
+
   proto = TYPE_HAS_OBJC_INFO (orig) ? TYPE_OBJC_PROTOCOL_LIST (orig) : NULL_TREE;
 
   if (proto)
@@ -8896,7 +8917,7 @@ gen_type_name_0 (tree type)
       strcat (errbuf, " <");
 
       while (proto) {
-       strcat (errbuf, 
+       strcat (errbuf,
                IDENTIFIER_POINTER (PROTOCOL_NAME (TREE_VALUE (proto))));
        proto = TREE_CHAIN (proto);
        strcat (errbuf, proto ? ", " : ">");