diff options
Diffstat (limited to 'gcc/c-family/c-attribs.c')
| -rw-r--r-- | gcc/c-family/c-attribs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/c-family/c-attribs.c b/gcc/c-family/c-attribs.c index f168082..24bcd70 100644 --- a/gcc/c-family/c-attribs.c +++ b/gcc/c-family/c-attribs.c @@ -158,6 +158,7 @@ static tree handle_patchable_function_entry_attribute (tree *, tree, tree, int, bool *); static tree handle_copy_attribute (tree *, tree, tree, int, bool *); static tree handle_nsobject_attribute (tree *, tree, tree, int, bool *); +static tree handle_objc_root_class_attribute (tree *, tree, tree, int, bool *); /* Helper to define attribute exclusions. */ #define ATTR_EXCL(name, function, type, variable) \ @@ -513,6 +514,8 @@ const struct attribute_spec c_common_attribute_table[] = /* Attributes used by Objective-C. */ { "NSObject", 0, 0, true, false, false, false, handle_nsobject_attribute, NULL }, + { "objc_root_class", 0, 0, true, false, false, false, + handle_objc_root_class_attribute, NULL }, { NULL, 0, 0, false, false, false, false, NULL, NULL } }; @@ -5163,6 +5166,22 @@ handle_nsobject_attribute (tree *node, tree name, tree args, return NULL_TREE; } +/* Handle a "objc_root_class" attributes; arguments as in + struct attribute_spec.handler. */ + +static tree +handle_objc_root_class_attribute (tree */*node*/, tree name, tree /*args*/, + int /*flags*/, bool *no_add_attrs) +{ + /* This has no meaning outside Objective-C. */ + if (!c_dialect_objc()) + warning (OPT_Wattributes, "%qE is only applicable to Objective-C" + " class interfaces, attribute ignored", name); + + *no_add_attrs = true; + return NULL_TREE; +} + /* Attempt to partially validate a single attribute ATTR as if it were to be applied to an entity OPER. */ |