/* Functions dealing with attribute handling, used by most front ends.
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002 Free Software Foundation, Inc.
+ 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GCC.
#include "config.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "tree.h"
#include "flags.h"
#include "toplev.h"
#include "output.h"
#include "rtl.h"
#include "ggc.h"
-#include "expr.h"
#include "tm_p.h"
-#include "obstack.h"
#include "cpplib.h"
#include "target.h"
#include "langhooks.h"
-static void init_attributes PARAMS ((void));
+static void init_attributes (void);
/* Table of the tables of attributes (common, language, format, machine)
searched. */
if --enable-checking. */
static void
-init_attributes ()
+init_attributes (void)
{
size_t i;
information, in the form of a bitwise OR of flags in enum attribute_flags
from tree.h. Depending on these flags, some attributes may be
returned to be applied at a later stage (for example, to apply
- a decl attribute to the declaration rather than to its type). If
- ATTR_FLAG_BUILT_IN is not set and *NODE is a DECL, then also consider
- whether there might be some default attributes to apply to this DECL;
- if so, decl_attributes will be called recursively with those attributes
- and ATTR_FLAG_BUILT_IN set. */
+ a decl attribute to the declaration rather than to its type). */
tree
-decl_attributes (node, attributes, flags)
- tree *node, attributes;
- int flags;
+decl_attributes (tree *node, tree attributes, int flags)
{
tree a;
tree returned_attrs = NULL_TREE;
if (!attributes_initialized)
init_attributes ();
- (*targetm.insert_attributes) (*node, &attributes);
-
- if (DECL_P (*node) && TREE_CODE (*node) == FUNCTION_DECL
- && !(flags & (int) ATTR_FLAG_BUILT_IN))
- (*lang_hooks.insert_default_attributes) (*node);
+ targetm.insert_attributes (*node, &attributes);
for (a = attributes; a; a = TREE_CHAIN (a))
{
tree *anode = node;
const struct attribute_spec *spec = NULL;
bool no_add_attrs = 0;
+ tree fn_ptr_tmp = NULL_TREE;
size_t i;
for (i = 0; i < ARRAY_SIZE (attribute_tables); i++)
&& (TREE_CODE (TREE_TYPE (*anode)) == FUNCTION_TYPE
|| TREE_CODE (TREE_TYPE (*anode)) == METHOD_TYPE))
{
- if (!(flags & (int) ATTR_FLAG_TYPE_IN_PLACE))
- *anode = build_type_copy (*anode);
- anode = &TREE_TYPE (*anode);
+ /* OK, this is a bit convoluted. We can't just make a copy
+ of the pointer type and modify its TREE_TYPE, because if
+ we change the attributes of the target type the pointer
+ type needs to have a different TYPE_MAIN_VARIANT. So we
+ pull out the target type now, frob it as appropriate, and
+ rebuild the pointer type later.
+
+ This would all be simpler if attributes were part of the
+ declarator, grumble grumble. */
+ fn_ptr_tmp = TREE_TYPE (*anode);
+ anode = &fn_ptr_tmp;
+ flags &= ~(int) ATTR_FLAG_TYPE_IN_PLACE;
}
else if (flags & (int) ATTR_FLAG_FUNCTION_NEXT)
{
if (DECL_P (*anode))
DECL_ATTRIBUTES (*anode) = tree_cons (name, args, old_attrs);
else if (flags & (int) ATTR_FLAG_TYPE_IN_PLACE)
- TYPE_ATTRIBUTES (*anode) = tree_cons (name, args, old_attrs);
+ {
+ TYPE_ATTRIBUTES (*anode) = tree_cons (name, args, old_attrs);
+ /* If this is the main variant, also push the attributes
+ out to the other variants. */
+ if (*anode == TYPE_MAIN_VARIANT (*anode))
+ {
+ tree variant;
+ for (variant = *anode; variant;
+ variant = TYPE_NEXT_VARIANT (variant))
+ {
+ if (TYPE_ATTRIBUTES (variant) == old_attrs)
+ TYPE_ATTRIBUTES (variant)
+ = TYPE_ATTRIBUTES (*anode);
+ else if (!lookup_attribute
+ (spec->name, TYPE_ATTRIBUTES (variant)))
+ TYPE_ATTRIBUTES (variant) = tree_cons
+ (name, args, TYPE_ATTRIBUTES (variant));
+ }
+ }
+ }
else
*anode = build_type_attribute_variant (*anode,
tree_cons (name, args,
old_attrs));
}
}
+
+ if (fn_ptr_tmp)
+ {
+ /* Rebuild the function pointer type and put it in the
+ appropriate place. */
+ fn_ptr_tmp = build_pointer_type (fn_ptr_tmp);
+ if (DECL_P (*node))
+ TREE_TYPE (*node) = fn_ptr_tmp;
+ else if (TREE_CODE (*node) == POINTER_TYPE)
+ *node = fn_ptr_tmp;
+ else
+ abort ();
+ }
}
return returned_attrs;
resulting attributes together the way decl_attributes expects them. */
void
-split_specs_attrs (specs_attrs, declspecs, prefix_attributes)
- tree specs_attrs;
- tree *declspecs, *prefix_attributes;
+split_specs_attrs (tree specs_attrs, tree *declspecs, tree *prefix_attributes)
{
tree t, s, a, next, specs, attrs;
A warning is issued for every ignored attribute. */
tree
-strip_attrs (specs_attrs)
- tree specs_attrs;
+strip_attrs (tree specs_attrs)
{
tree specs, attrs;
return specs;
}
-
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