diff options
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index e11b6aff475..7dce96214ea 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -529,6 +529,7 @@ static tree handle_type_generic_attribute (tree *, tree, tree, int, bool *); static tree handle_alloc_size_attribute (tree *, tree, tree, int, bool *); static tree handle_target_attribute (tree *, tree, tree, int, bool *); static tree handle_optimize_attribute (tree *, tree, tree, int, bool *); +static tree handle_fnspec_attribute (tree *, tree, tree, int, bool *); static void check_function_nonnull (tree, int, tree *); static void check_nonnull_arg (void *, tree, unsigned HOST_WIDE_INT); @@ -829,6 +830,10 @@ const struct attribute_spec c_common_attribute_table[] = handle_target_attribute }, { "optimize", 1, -1, true, false, false, handle_optimize_attribute }, + /* For internal use (marking of builtins and runtime functions) only. + The name contains space to prevent its usage in source code. */ + { "fn spec", 1, 1, false, true, true, + handle_fnspec_attribute }, { NULL, 0, 0, false, false, false, NULL } }; @@ -7138,6 +7143,20 @@ handle_alloc_size_attribute (tree *node, tree ARG_UNUSED (name), tree args, return NULL_TREE; } +/* Handle a "fn spec" attribute; arguments as in + struct attribute_spec.handler. */ + +static tree +handle_fnspec_attribute (tree *node ATTRIBUTE_UNUSED, tree ARG_UNUSED (name), + tree args, int ARG_UNUSED (flags), + bool *no_add_attrs ATTRIBUTE_UNUSED) +{ + gcc_assert (args + && TREE_CODE (TREE_VALUE (args)) == STRING_CST + && !TREE_CHAIN (args)); + return NULL_TREE; +} + /* Handle a "returns_twice" attribute; arguments as in struct attribute_spec.handler. */ |