diff options
Diffstat (limited to 'libcxx/include/__availability')
| -rw-r--r-- | libcxx/include/__availability | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/libcxx/include/__availability b/libcxx/include/__availability index db2267c8eb16..cc3b6fabdab1 100644 --- a/libcxx/include/__availability +++ b/libcxx/include/__availability @@ -43,6 +43,14 @@ // as unavailable. When vendors decide to ship the feature as part of their // shared library, they can update the markup appropriately. // +// Furthermore, many features in the standard library have corresponding +// feature-test macros. When a feature is made unavailable on some deployment +// target, a macro should be defined to signal that it is unavailable. That +// macro can then be picked up when feature-test macros are generated (see +// generate_feature_test_macro_components.py) to make sure that feature-test +// macros don't announce a feature as being implemented if it has been marked +// as unavailable. +// // Note that this mechanism is disabled by default in the "upstream" libc++. // Availability annotations are only meaningful when shipping libc++ inside // a platform (i.e. as a system library), and so vendors that want them should @@ -76,6 +84,8 @@ // This controls the availability of std::shared_mutex and std::shared_timed_mutex, // which were added to the dylib later. # define _LIBCPP_AVAILABILITY_SHARED_MUTEX +// # define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_shared_mutex +// # define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_shared_timed_mutex // These macros control the availability of std::bad_optional_access and // other exception types. These were put in the shared library to prevent @@ -114,6 +124,7 @@ # define _LIBCPP_AVAILABILITY_FILESYSTEM # define _LIBCPP_AVAILABILITY_FILESYSTEM_PUSH # define _LIBCPP_AVAILABILITY_FILESYSTEM_POP +// # define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_filesystem // This controls the availability of std::to_chars. # define _LIBCPP_AVAILABILITY_TO_CHARS @@ -122,6 +133,10 @@ // which requires shared library support for various operations // (see libcxx/src/atomic.cpp). # define _LIBCPP_AVAILABILITY_SYNC +// # define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_atomic_wait +// # define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_barrier +// # define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_latch +// # define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_semaphore #elif defined(__APPLE__) @@ -130,6 +145,14 @@ __attribute__((availability(ios,strict,introduced=10.0))) \ __attribute__((availability(tvos,strict,introduced=10.0))) \ __attribute__((availability(watchos,strict,introduced=3.0))) +# if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101200) || \ + (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 100000) || \ + (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 100000) || \ + (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 30000) +# define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_shared_mutex +# define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_shared_timed_mutex +# endif + # define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS \ __attribute__((availability(macosx,strict,introduced=10.13))) \ __attribute__((availability(ios,strict,introduced=11.0))) \ @@ -139,27 +162,34 @@ _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS # define _LIBCPP_AVAILABILITY_BAD_ANY_CAST \ _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS + # define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \ __attribute__((availability(macosx,strict,introduced=10.12))) \ __attribute__((availability(ios,strict,introduced=10.0))) \ __attribute__((availability(tvos,strict,introduced=10.0))) \ __attribute__((availability(watchos,strict,introduced=3.0))) + # define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \ __attribute__((availability(macosx,strict,introduced=10.12))) \ __attribute__((availability(ios,strict,introduced=10.0))) \ __attribute__((availability(tvos,strict,introduced=10.0))) \ __attribute__((availability(watchos,strict,introduced=3.0))) + # define _LIBCPP_AVAILABILITY_FUTURE_ERROR \ __attribute__((availability(ios,strict,introduced=6.0))) + # define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \ __attribute__((availability(macosx,strict,introduced=10.9))) \ __attribute__((availability(ios,strict,introduced=7.0))) + # define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \ __attribute__((availability(macosx,strict,introduced=10.9))) \ __attribute__((availability(ios,strict,introduced=7.0))) + # define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \ __attribute__((availability(macosx,strict,introduced=10.9))) \ __attribute__((availability(ios,strict,introduced=7.0))) + # define _LIBCPP_AVAILABILITY_FILESYSTEM \ __attribute__((availability(macosx,strict,introduced=10.15))) \ __attribute__((availability(ios,strict,introduced=13.0))) \ @@ -175,10 +205,23 @@ _Pragma("clang attribute pop") \ _Pragma("clang attribute pop") \ _Pragma("clang attribute pop") +# if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101500) || \ + (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 130000) || \ + (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 130000) || \ + (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 60000) +# define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_filesystem +# endif + # define _LIBCPP_AVAILABILITY_TO_CHARS \ _LIBCPP_AVAILABILITY_FILESYSTEM + + // Note: Those are not ABI-stable yet, so we can't ship them. # define _LIBCPP_AVAILABILITY_SYNC \ __attribute__((unavailable)) +# define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_atomic_wait +# define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_barrier +# define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_latch +# define _LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_semaphore #else |