NS/CF String format syntax parsing.

gcc:

	PR target/44981
	* doc/extend.tex (format): Document NSString extension.
	(format_arg): Likewise.
	(Darwin Format Checks): New section.
	* doc/tm.texi: Document string object hooks (generated).
	* doc/tm.texi.in (TARGET_OBJC_CONSTRUCT_STRING_OBJECT) Rename.
	(TARGET_STRING_OBJECT_REF_TYPE_P): New.
	(TARGET_CHECK_STRING_OBJECT_FORMAT_ARG): New.
	* target.def (objc_construct_string_object): Rename, amend 
	documentation.
	(string_object_ref_type_p): New hook.
	(check_string_object_format_arg): New hook.
	* c-parser.c (c_parser_attributes): Allow objective-c class names as
	attribute identifiers.
	* config/darwin-c.c (darwin_cfstring_ref_p): New.
	(darwin_check_cfstring_format_arg): New.
	(darwin_additional_format_types): New.
	* config/darwin-protos.h (darwin_cfstring_ref_p) New.
	(darwin_check_cfstring_format_arg): New.
	* config/darwin.h (TARGET_OBJC_CONSTRUCT_STRING_OBJECT) Renamed.
	(TARGET_STRING_OBJECT_REF_TYPE_P): New.
	(TARGET_N_FORMAT_TYPES): New.
	(TARGET_CHECK_STRING_OBJECT_FORMAT_ARG): New.

gcc/c-family:

	PR target/44981
	* c-format.c (format_type): New type gcc_objc_string_format_type.
	(valid_stringptr_type_p): New.
	(handle_format_arg_attribute): Use valid_stringptr_type_p ().
	(check_format_string): Pass expected type, use 
	valid_stringptr_type_p (), check that the format string types are
	consistent with the format specification.
	(decode_format_attr): Warn if NSString is used outside objective-c.
	(format_types_orig): Add NSString.
	(format_name): New.
	(format_flags): New.
	(check_format_arg): Handle format strings requiring an external parser.
	first_target_format_type: New variable.
	(handle_format_attribute): Set up first_target_format_type, pass the
	expected format arg string type to check_format_string().
	* c-common.h (FMT_FLAG_PARSE_ARG_CONVERT_EXTERNAL):  New flag.
	* stub-objc.c (objc_string_ref_type_p): New.
	(objc_check_format_arg): New.

gcc/objc:

	PR target/44981
	* objc-act.c (objc_build_string_object): Amend for renamed hook.
	(objc_string_ref_type_p): New.
	(objc_check_format_arg): New.

gcc/testsuite:

	PR target/44981
	* gcc.dg/darwin-cfstring-format-1.c: New.
	* gcc.dg/warn-nsstring.c: New.
	* objc.dg/fsf-nsstring-format-1.m: New.
	* obj-c++.dg/fsf-nsstring-format-1.mm: New.
	* obj-c++.dg/torture/strings/const-cfstring-1.mm: Update for darwin10
	linker warning.




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166398 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 3 insertions, 1 deletions

diff --git a/gcc/config/darwin-protos.h b/gcc/config/darwin-protos.h
index 30b3f822c98..e70de1bee80 100644
--- a/gcc/config/darwin-protos.h
+++ b/gcc/config/darwin-protos.h
@@ -97,7 +97,9 @@ extern void darwin_init_cfstring_builtins (unsigned);
 extern tree darwin_fold_builtin (tree, int, tree *, bool);
 extern tree darwin_objc_construct_string (tree);
 extern bool darwin_cfstring_p (tree);
-extern tree darwin_build_constant_cfstring (tree str);
+extern bool darwin_cfstring_ref_p (const_tree);
+extern void darwin_check_cfstring_format_arg (tree, tree);
+extern tree darwin_build_constant_cfstring (tree);
 extern void darwin_enter_string_into_cfstring_table (tree);
 
 extern void darwin_asm_output_anchor (rtx symbol);