builtin-attrs.def (ATTR_SENTINEL, [...]): New.
gcc:
* builtin-attrs.def (ATTR_SENTINEL, ATTR_SENTINEL_NOTHROW_LIST):
New.
* builtins.def (BUILT_IN_EXECL, BUILT_IN_EXECLP): Add `sentinel'
attribute.
* c-common.c (handle_sentinel_attribute, check_function_sentinel):
New functions.
(c_common_attribute_table): Add `sentinel' attribute.
(check_function_arguments): Handle `sentinel' attribute.
* doc/extend.texi: Document `sentinel' attribute.
gcc/testsuite:
* gcc.dg/format/sentinel-1.c: New test.
include:
* ansidecl.h (ATTRIBUTE_SENTINEL): Define.
* libiberty.h (concat, reconcat, concat_length, concat_copy,
concat_copy2): Use ATTRIBUTE_SENTINEL.
From-SVN: r87096
3d091dac56