/* Functions dealing with attribute handling, used by most front ends.
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004 Free Software Foundation, Inc.
+ 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GCC.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#include "config.h"
#include "system.h"
/* The name must not begin and end with __. */
const char *name = attribute_tables[i][j].name;
int len = strlen (name);
-
+
gcc_assert (!(name[0] == '_' && name[1] == '_'
&& name[len - 1] == '_' && name[len - 2] == '_'));
-
+
/* The minimum and maximum lengths must be consistent. */
gcc_assert (attribute_tables[i][j].min_length >= 0);
-
+
gcc_assert (attribute_tables[i][j].max_length == -1
|| (attribute_tables[i][j].max_length
>= attribute_tables[i][j].min_length));
-
+
/* An attribute cannot require both a DECL and a TYPE. */
gcc_assert (!attribute_tables[i][j].decl_required
|| !attribute_tables[i][j].type_required);
-
+
/* If an attribute requires a function type, in particular
it requires a type. */
gcc_assert (!attribute_tables[i][j].function_type_required
if (spec == NULL)
{
- warning ("`%s' attribute directive ignored",
+ warning (OPT_Wattributes, "%qs attribute directive ignored",
IDENTIFIER_POINTER (name));
continue;
}
|| (spec->max_length >= 0
&& list_length (args) > spec->max_length))
{
- error ("wrong number of arguments specified for `%s' attribute",
+ error ("wrong number of arguments specified for %qs attribute",
IDENTIFIER_POINTER (name));
continue;
}
}
else
{
- warning ("`%s' attribute does not apply to types",
+ warning (OPT_Wattributes, "%qs attribute does not apply to types",
IDENTIFIER_POINTER (name));
continue;
}
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. */
+ 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;
if (TREE_CODE (*anode) != FUNCTION_TYPE
&& TREE_CODE (*anode) != METHOD_TYPE)
{
- warning ("`%s' attribute only applies to function types",
+ warning (OPT_Wattributes,
+ "%qs attribute only applies to function types",
IDENTIFIER_POINTER (name));
continue;
}
}
+ if (TYPE_P (*anode)
+ && (flags & (int) ATTR_FLAG_TYPE_IN_PLACE)
+ && TYPE_SIZE (*anode) != NULL_TREE)
+ {
+ warning (OPT_Wattributes, "type attributes ignored after type is already defined");
+ continue;
+ }
+
if (spec->handler != NULL)
returned_attrs = chainon ((*spec->handler) (anode, name, args,
flags, &no_add_attrs),
&& (TREE_CODE (*node) == VAR_DECL
|| TREE_CODE (*node) == PARM_DECL
|| TREE_CODE (*node) == RESULT_DECL))
- {
- /* Force a recalculation of mode and size. */
- DECL_MODE (*node) = VOIDmode;
- DECL_SIZE (*node) = 0;
-
- layout_decl (*node, 0);
- }
+ relayout_decl (*node);
if (!no_add_attrs)
{
return returned_attrs;
}
-
-/* Split SPECS_ATTRS, a list of declspecs and prefix attributes, into two
- lists. SPECS_ATTRS may also be just a typespec (eg: RECORD_TYPE).
-
- The head of the declspec list is stored in DECLSPECS.
- The head of the attribute list is stored in PREFIX_ATTRIBUTES.
-
- Note that attributes in SPECS_ATTRS are stored in the TREE_PURPOSE of
- the list elements. We drop the containing TREE_LIST nodes and link the
- resulting attributes together the way decl_attributes expects them. */
-
-void
-split_specs_attrs (tree specs_attrs, tree *declspecs, tree *prefix_attributes)
-{
- tree t, s, a, next, specs, attrs;
-
- /* This can happen after an __extension__ in pedantic mode. */
- if (specs_attrs != NULL_TREE
- && TREE_CODE (specs_attrs) == INTEGER_CST)
- {
- *declspecs = NULL_TREE;
- *prefix_attributes = NULL_TREE;
- return;
- }
-
- /* This can happen in c++ (eg: decl: typespec initdecls ';'). */
- if (specs_attrs != NULL_TREE
- && TREE_CODE (specs_attrs) != TREE_LIST)
- {
- *declspecs = specs_attrs;
- *prefix_attributes = NULL_TREE;
- return;
- }
-
- /* Remember to keep the lists in the same order, element-wise. */
-
- specs = s = NULL_TREE;
- attrs = a = NULL_TREE;
- for (t = specs_attrs; t; t = next)
- {
- next = TREE_CHAIN (t);
- /* Declspecs have a non-NULL TREE_VALUE. */
- if (TREE_VALUE (t) != NULL_TREE)
- {
- if (specs == NULL_TREE)
- specs = s = t;
- else
- {
- TREE_CHAIN (s) = t;
- s = t;
- }
- }
- /* The TREE_PURPOSE may also be empty in the case of
- __attribute__(()). */
- else if (TREE_PURPOSE (t) != NULL_TREE)
- {
- if (attrs == NULL_TREE)
- attrs = a = TREE_PURPOSE (t);
- else
- {
- TREE_CHAIN (a) = TREE_PURPOSE (t);
- a = TREE_PURPOSE (t);
- }
- /* More attrs can be linked here, move A to the end. */
- while (TREE_CHAIN (a) != NULL_TREE)
- a = TREE_CHAIN (a);
- }
- }
-
- /* Terminate the lists. */
- if (s != NULL_TREE)
- TREE_CHAIN (s) = NULL_TREE;
- if (a != NULL_TREE)
- TREE_CHAIN (a) = NULL_TREE;
-
- /* All done. */
- *declspecs = specs;
- *prefix_attributes = attrs;
-}
-
-/* Strip attributes from SPECS_ATTRS, a list of declspecs and attributes.
- This function is used by the parser when a rule will accept attributes
- in a particular position, but we don't want to support that just yet.
-
- A warning is issued for every ignored attribute. */
-
-tree
-strip_attrs (tree specs_attrs)
-{
- tree specs, attrs;
-
- split_specs_attrs (specs_attrs, &specs, &attrs);
-
- while (attrs)
- {
- warning ("`%s' attribute ignored",
- IDENTIFIER_POINTER (TREE_PURPOSE (attrs)));
- attrs = TREE_CHAIN (attrs);
- }
-
- return specs;
-}
OSDN Git Service
