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[pf3gnuchains/gcc-fork.git] / gcc / godump.c
index 16a4803..3f78eea 100644 (file)
@@ -300,7 +300,11 @@ go_define (unsigned int lineno, const char *buffer)
        case '"':
        case '\'':
          {
-           char quote = *p;
+           char quote;
+
+           if (saw_operand)
+             goto unknown;
+           quote = *p;
            *q++ = *p++;
            while (*p != quote)
              {
@@ -464,6 +468,9 @@ struct godump_container
   /* Global type definitions.  */
   htab_t type_hash;
 
+  /* Invalid types.  */
+  htab_t invalid_hash;
+
   /* Obstack used to write out a type definition.  */
   struct obstack type_obstack;
 };
@@ -500,20 +507,20 @@ go_format_type (struct godump_container *container, tree type,
          || TREE_CODE (type) == FUNCTION_TYPE))
     {
       tree name;
+      void **slot;
 
       name = TYPE_NAME (type);
-      if (TREE_CODE (name) == IDENTIFIER_NODE)
-       {
-         obstack_1grow (ob, '_');
-         go_append_string (ob, name);
-         return ret;
-       }
-      else if (TREE_CODE (name) == TYPE_DECL)
-       {
-         obstack_1grow (ob, '_');
-         go_append_string (ob, DECL_NAME (name));
-         return ret;
-       }
+      if (TREE_CODE (name) == TYPE_DECL)
+       name = DECL_NAME (name);
+
+      slot = htab_find_slot (container->invalid_hash, IDENTIFIER_POINTER (name),
+                            NO_INSERT);
+      if (slot != NULL)
+       ret = false;
+
+      obstack_1grow (ob, '_');
+      go_append_string (ob, name);
+      return ret;
     }
 
   pointer_set_insert (container->decls_seen, type);
@@ -525,8 +532,18 @@ go_format_type (struct godump_container *container, tree type,
       break;
 
     case TYPE_DECL:
-      obstack_1grow (ob, '_');
-      go_append_string (ob, DECL_NAME (type));
+      {
+       void **slot;
+
+       slot = htab_find_slot (container->invalid_hash,
+                              IDENTIFIER_POINTER (DECL_NAME (type)),
+                              NO_INSERT);
+       if (slot != NULL)
+         ret = false;
+
+       obstack_1grow (ob, '_');
+       go_append_string (ob, DECL_NAME (type));
+      }
       break;
 
     case INTEGER_TYPE:
@@ -597,31 +614,28 @@ go_format_type (struct godump_container *container, tree type,
                      == FUNCTION_TYPE))))
         {
          tree name;
+         void **slot;
 
          name = TYPE_NAME (TREE_TYPE (type));
-         if (TREE_CODE (name) == IDENTIFIER_NODE)
-           {
-             obstack_grow (ob, "*_", 2);
-             go_append_string (ob, name);
+         if (TREE_CODE (name) == TYPE_DECL)
+           name = DECL_NAME (name);
 
-             /* The pointer here can be used without the struct or
-                union definition.  So this struct or union is a a
-                potential dummy type.  */
-             if (RECORD_OR_UNION_TYPE_P (TREE_TYPE (type)))
-               pointer_set_insert (container->pot_dummy_types,
-                                   IDENTIFIER_POINTER (name));
+         slot = htab_find_slot (container->invalid_hash,
+                                IDENTIFIER_POINTER (name), NO_INSERT);
+         if (slot != NULL)
+           ret = false;
 
-             return ret;
-           }
-         else if (TREE_CODE (name) == TYPE_DECL)
-           {
-             obstack_grow (ob, "*_", 2);
-             go_append_string (ob, DECL_NAME (name));
-             if (RECORD_OR_UNION_TYPE_P (TREE_TYPE (type)))
-               pointer_set_insert (container->pot_dummy_types,
-                                   IDENTIFIER_POINTER (DECL_NAME (name)));
-             return ret;
-           }
+         obstack_grow (ob, "*_", 2);
+         go_append_string (ob, name);
+
+         /* The pointer here can be used without the struct or union
+            definition.  So this struct or union is a potential dummy
+            type.  */
+         if (RECORD_OR_UNION_TYPE_P (TREE_TYPE (type)))
+           pointer_set_insert (container->pot_dummy_types,
+                               IDENTIFIER_POINTER (name));
+
+         return ret;
         }
       if (TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE)
        obstack_grow (ob, "func", 4);
@@ -671,11 +685,22 @@ go_format_type (struct godump_container *container, tree type,
             field != NULL_TREE;
             field = TREE_CHAIN (field))
          {
+           struct obstack hold_type_obstack;
+           bool field_ok;
+
+           if (TREE_CODE (type) == UNION_TYPE)
+             {
+               hold_type_obstack = container->type_obstack;
+               obstack_init (&container->type_obstack);
+             }
+
+           field_ok = true;
+
            if (DECL_NAME (field) == NULL)
              {
                char buf[100];
 
-               obstack_grow (ob, "Godump_", 2);
+               obstack_grow (ob, "Godump_", 7);
                snprintf (buf, sizeof buf, "%d", i);
                obstack_grow (ob, buf, strlen (buf));
                i++;
@@ -697,7 +722,7 @@ go_format_type (struct godump_container *container, tree type,
            if (DECL_BIT_FIELD (field))
              {
                obstack_grow (ob, "INVALID-bit-field", 17);
-               ret = false;
+               field_ok = false;
              }
            else
               {
@@ -709,31 +734,59 @@ go_format_type (struct godump_container *container, tree type,
                            && (TREE_CODE (TREE_TYPE (TREE_TYPE (field)))
                                 == FUNCTION_TYPE))))
                  {
-                   tree name = TYPE_NAME (TREE_TYPE (field));
-                   if (TREE_CODE (name) == IDENTIFIER_NODE)
-                     {
-                       obstack_1grow (ob, '_');
-                       go_append_string (ob, name);
-                     }
-                   else if (TREE_CODE (name) == TYPE_DECL)
-                     {
-                       obstack_1grow (ob, '_');
-                       go_append_string (ob, DECL_NAME (name));
-                     }
+                   tree name;
+                   void **slot;
+
+                   name = TYPE_NAME (TREE_TYPE (field));
+                   if (TREE_CODE (name) == TYPE_DECL)
+                     name = DECL_NAME (name);
+
+                   slot = htab_find_slot (container->invalid_hash,
+                                          IDENTIFIER_POINTER (name),
+                                          NO_INSERT);
+                   if (slot != NULL)
+                     field_ok = false;
+
+                   obstack_1grow (ob, '_');
+                   go_append_string (ob, name);
                  }
                else
                  {
                    if (!go_format_type (container, TREE_TYPE (field), true,
                                         false))
-                     ret = false;
+                     field_ok = false;
                  }
               }
            obstack_grow (ob, "; ", 2);
 
-           /* Only output the first field of a union, and hope for
-              the best.  */
+           /* Only output the first successful field of a union, and
+              hope for the best.  */
            if (TREE_CODE (type) == UNION_TYPE)
-             break;
+             {
+               if (!field_ok && TREE_CHAIN (field) == NULL_TREE)
+                 {
+                   field_ok = true;
+                   ret = false;
+                 }
+               if (field_ok)
+                 {
+                   unsigned int sz;
+
+                   sz = obstack_object_size (&container->type_obstack);
+                   obstack_grow (&hold_type_obstack,
+                                 obstack_base (&container->type_obstack),
+                                 sz);
+                 }
+               obstack_free (&container->type_obstack, NULL);
+               container->type_obstack = hold_type_obstack;
+               if (field_ok)
+                 break;
+             }
+           else
+             {
+               if (!field_ok)
+                 ret = false;
+             }
          }
        obstack_1grow (ob, '}');
       }
@@ -741,9 +794,11 @@ go_format_type (struct godump_container *container, tree type,
 
     case FUNCTION_TYPE:
       {
-       tree args;
+       tree arg_type;
        bool is_varargs;
        tree result;
+       function_args_iterator iter;
+       bool seen_arg;
 
        /* Go has no way to write a type which is a function but not a
           pointer to a function.  */
@@ -754,25 +809,21 @@ go_format_type (struct godump_container *container, tree type,
          }
 
        obstack_1grow (ob, '(');
-       is_varargs = true;
-       for (args = TYPE_ARG_TYPES (type);
-            args != NULL_TREE;
-            args = TREE_CHAIN (args))
+       is_varargs = stdarg_p (type);
+       seen_arg = false;
+       FOREACH_FUNCTION_ARGS (type, arg_type, iter)
          {
-           if (VOID_TYPE_P (TREE_VALUE (args)))
-             {
-               gcc_assert (TREE_CHAIN (args) == NULL);
-               is_varargs = false;
-               break;
-             }
-           if (args != TYPE_ARG_TYPES (type))
+           if (VOID_TYPE_P (arg_type))
+             break;
+           if (seen_arg)
              obstack_grow (ob, ", ", 2);
-           if (!go_format_type (container, TREE_VALUE (args), true, false))
+           if (!go_format_type (container, arg_type, true, false))
              ret = false;
+           seen_arg = true;
          }
        if (is_varargs)
          {
-           if (TYPE_ARG_TYPES (type) != NULL_TREE)
+           if (prototype_p (type))
              obstack_grow (ob, ", ", 2);
            obstack_grow (ob, "...interface{}", 14);
          }
@@ -844,9 +895,24 @@ go_output_typedef (struct godump_container *container, tree decl)
       for (element = TYPE_VALUES (TREE_TYPE (decl));
           element != NULL_TREE;
           element = TREE_CHAIN (element))
-       fprintf (go_dump_file, "const _%s = " HOST_WIDE_INT_PRINT_DEC "\n",
-                IDENTIFIER_POINTER (TREE_PURPOSE (element)),
-                tree_low_cst (TREE_VALUE (element), 0));
+       {
+         const char *name;
+         void **slot;
+
+         name = IDENTIFIER_POINTER (TREE_PURPOSE (element));
+
+         /* Sometimes a name will be defined as both an enum constant
+            and a macro.  Avoid duplicate definition errors by
+            treating enum constants as macros.  */
+         slot = htab_find_slot (macro_hash, name, INSERT);
+         if (*slot == NULL)
+           {
+             *slot = CONST_CAST (char *, name);
+             fprintf (go_dump_file,
+                      "const _%s = " HOST_WIDE_INT_PRINT_DEC "\n",
+                      name, tree_low_cst (TREE_VALUE (element), 0));
+           }
+       }
       pointer_set_insert (container->decls_seen, TREE_TYPE (decl));
       if (TYPE_CANONICAL (TREE_TYPE (decl)) != NULL_TREE)
        pointer_set_insert (container->decls_seen,
@@ -866,7 +932,11 @@ go_output_typedef (struct godump_container *container, tree decl)
       *slot = CONST_CAST (void *, (const void *) type);
 
       if (!go_format_type (container, TREE_TYPE (decl), false, false))
-       fprintf (go_dump_file, "// ");
+       {
+         fprintf (go_dump_file, "// ");
+         slot = htab_find_slot (container->invalid_hash, type, INSERT);
+         *slot = CONST_CAST (void *, (const void *) type);
+       }
       fprintf (go_dump_file, "type _%s ",
               IDENTIFIER_POINTER (DECL_NAME (decl)));
       go_output_type (container);
@@ -885,7 +955,11 @@ go_output_typedef (struct godump_container *container, tree decl)
        *slot = CONST_CAST (void *, (const void *) type);
 
        if (!go_format_type (container, TREE_TYPE (decl), false, false))
-        fprintf (go_dump_file, "// ");
+        {
+          fprintf (go_dump_file, "// ");
+          slot = htab_find_slot (container->invalid_hash, type, INSERT);
+          *slot = CONST_CAST (void *, (const void *) type);
+        }
        fprintf (go_dump_file, "type _%s ",
               IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))));
        go_output_type (container);
@@ -997,6 +1071,8 @@ go_finish (const char *filename)
   container.pot_dummy_types = pointer_set_create ();
   container.type_hash = htab_create (100, htab_hash_string,
                                      string_hash_eq, NULL);
+  container.invalid_hash = htab_create (10, htab_hash_string,
+                                       string_hash_eq, NULL);
   container.keyword_hash = htab_create (50, htab_hash_string,
                                         string_hash_eq, NULL);
   obstack_init (&container.type_obstack);
@@ -1031,6 +1107,7 @@ go_finish (const char *filename)
   pointer_set_destroy (container.decls_seen);
   pointer_set_destroy (container.pot_dummy_types);
   htab_delete (container.type_hash);
+  htab_delete (container.invalid_hash);
   htab_delete (container.keyword_hash);
   obstack_free (&container.type_obstack, NULL);