diff --git a/libcxx/CMakeLists.txt b/libcxx/CMakeLists.txt --- a/libcxx/CMakeLists.txt +++ b/libcxx/CMakeLists.txt @@ -102,8 +102,8 @@ on definitions in a shared library. By default, we assume that we're not building libc++ for any specific vendor, and we disable those annotations. Vendors wishing to provide compile-time errors when using features unavailable on some version of - the shared library they shipped should turn this on and see `include/__availability` - for more details." OFF) + the shared library they shipped should turn this on and see + `include/__config_dir/availability.h` for more details." OFF) option(LIBCXX_ENABLE_CLANG_TIDY "Whether to compile and run clang-tidy checks" OFF) if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU") diff --git a/libcxx/include/CMakeLists.txt b/libcxx/include/CMakeLists.txt --- a/libcxx/include/CMakeLists.txt +++ b/libcxx/include/CMakeLists.txt @@ -231,7 +231,6 @@ __atomic/is_always_lock_free.h __atomic/kill_dependency.h __atomic/memory_order.h - __availability __bit/bit_cast.h __bit/bit_ceil.h __bit/bit_floor.h @@ -318,6 +317,28 @@ __concepts/totally_ordered.h __condition_variable/condition_variable.h __config + __config_dir/abi.h + __config_dir/attributes.h + __config_dir/availability.h + __config_dir/base.h + __config_dir/base_umbrella.h + __config_dir/c_std_library.h + __config_dir/compiler_shims.h + __config_dir/deprecation.h + __config_dir/endianness.h + __config_dir/experimental.h + __config_dir/features.h + __config_dir/language_versions_support.h + __config_dir/objc.h + __config_dir/object_format.h + __config_dir/platform_msvc.h + __config_dir/pstl.h + __config_dir/random_device.h + __config_dir/sanitizers.h + __config_dir/threading.h + __config_dir/utils.h + __config_dir/versions.h + __config_dir/visibility.h __coroutine/coroutine_handle.h __coroutine/coroutine_traits.h __coroutine/noop_coroutine_handle.h diff --git a/libcxx/include/__assert b/libcxx/include/__assert --- a/libcxx/include/__assert +++ b/libcxx/include/__assert @@ -10,7 +10,7 @@ #ifndef _LIBCPP___ASSERT #define _LIBCPP___ASSERT -#include <__config> +#include <__config_dir/base.h> #include <__verbose_abort> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) diff --git a/libcxx/include/__atomic/atomic_base.h b/libcxx/include/__atomic/atomic_base.h --- a/libcxx/include/__atomic/atomic_base.h +++ b/libcxx/include/__atomic/atomic_base.h @@ -14,7 +14,6 @@ #include <__atomic/cxx_atomic_impl.h> #include <__atomic/is_always_lock_free.h> #include <__atomic/memory_order.h> -#include <__availability> #include <__config> #include <__memory/addressof.h> #include <__type_traits/is_integral.h> diff --git a/libcxx/include/__atomic/atomic_sync.h b/libcxx/include/__atomic/atomic_sync.h --- a/libcxx/include/__atomic/atomic_sync.h +++ b/libcxx/include/__atomic/atomic_sync.h @@ -12,7 +12,6 @@ #include <__atomic/contention_t.h> #include <__atomic/cxx_atomic_impl.h> #include <__atomic/memory_order.h> -#include <__availability> #include <__chrono/duration.h> #include <__config> #include <__memory/addressof.h> diff --git a/libcxx/include/__charconv/to_chars_floating_point.h b/libcxx/include/__charconv/to_chars_floating_point.h --- a/libcxx/include/__charconv/to_chars_floating_point.h +++ b/libcxx/include/__charconv/to_chars_floating_point.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___CHARCONV_TO_CHARS_FLOATING_POINT_H #define _LIBCPP___CHARCONV_TO_CHARS_FLOATING_POINT_H -#include <__availability> #include <__charconv/chars_format.h> #include <__charconv/to_chars_result.h> #include <__config> diff --git a/libcxx/include/__chrono/file_clock.h b/libcxx/include/__chrono/file_clock.h --- a/libcxx/include/__chrono/file_clock.h +++ b/libcxx/include/__chrono/file_clock.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___CHRONO_FILE_CLOCK_H #define _LIBCPP___CHRONO_FILE_CLOCK_H -#include <__availability> #include <__chrono/duration.h> #include <__chrono/system_clock.h> #include <__chrono/time_point.h> diff --git a/libcxx/include/__config b/libcxx/include/__config --- a/libcxx/include/__config +++ b/libcxx/include/__config @@ -10,1308 +10,28 @@ #ifndef _LIBCPP___CONFIG #define _LIBCPP___CONFIG +#include <__config_dir/abi.h> +#include <__config_dir/attributes.h> +#include <__config_dir/availability.h> +#include <__config_dir/base.h> +#include <__config_dir/c_std_library.h> +#include <__config_dir/compiler_shims.h> +#include <__config_dir/deprecation.h> +#include <__config_dir/endianness.h> +#include <__config_dir/experimental.h> +#include <__config_dir/features.h> +#include <__config_dir/language_versions_support.h> +#include <__config_dir/objc.h> +#include <__config_dir/object_format.h> +#include <__config_dir/platform_msvc.h> +#include <__config_dir/pstl.h> +#include <__config_dir/random_device.h> +#include <__config_dir/sanitizers.h> +#include <__config_dir/threading.h> +#include <__config_dir/versions.h> +#include <__config_dir/visibility.h> #include <__config_site> - -#if defined(_MSC_VER) && !defined(__clang__) -# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -# define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -# endif -#endif - -#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -# pragma GCC system_header -#endif - -#if defined(__apple_build_version__) -// Given AppleClang XX.Y.Z, _LIBCPP_APPLE_CLANG_VER is XXYZ (e.g. AppleClang 14.0.3 => 1403) -# define _LIBCPP_COMPILER_CLANG_BASED -# define _LIBCPP_APPLE_CLANG_VER (__apple_build_version__ / 10000) -#elif defined(__clang__) -# define _LIBCPP_COMPILER_CLANG_BASED -# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__) -#elif defined(__GNUC__) -# define _LIBCPP_COMPILER_GCC -#endif - -#ifdef __cplusplus - -// _LIBCPP_VERSION represents the version of libc++, which matches the version of LLVM. -// Given a LLVM release LLVM XX.YY.ZZ (e.g. LLVM 17.0.1 == 17.00.01), _LIBCPP_VERSION is -// defined to XXYYZZ. -# define _LIBCPP_VERSION 170000 - -# define _LIBCPP_CONCAT_IMPL(_X, _Y) _X##_Y -# define _LIBCPP_CONCAT(_X, _Y) _LIBCPP_CONCAT_IMPL(_X, _Y) - -// Valid C++ identifier that revs with every libc++ version. This can be used to -// generate identifiers that must be unique for every released libc++ version. -# define _LIBCPP_VERSIONED_IDENTIFIER _LIBCPP_CONCAT(v, _LIBCPP_VERSION) - -# if __STDC_HOSTED__ == 0 -# define _LIBCPP_FREESTANDING -# endif - -// NOLINTBEGIN(libcpp-cpp-version-check) -# ifndef _LIBCPP_STD_VER -# if __cplusplus <= 201103L -# define _LIBCPP_STD_VER 11 -# elif __cplusplus <= 201402L -# define _LIBCPP_STD_VER 14 -# elif __cplusplus <= 201703L -# define _LIBCPP_STD_VER 17 -# elif __cplusplus <= 202002L -# define _LIBCPP_STD_VER 20 -# elif __cplusplus <= 202302L -# define _LIBCPP_STD_VER 23 -# else -// Expected release year of the next C++ standard -# define _LIBCPP_STD_VER 26 -# endif -# endif // _LIBCPP_STD_VER -// NOLINTEND(libcpp-cpp-version-check) - -# if defined(__ELF__) -# define _LIBCPP_OBJECT_FORMAT_ELF 1 -# elif defined(__MACH__) -# define _LIBCPP_OBJECT_FORMAT_MACHO 1 -# elif defined(_WIN32) -# define _LIBCPP_OBJECT_FORMAT_COFF 1 -# elif defined(__wasm__) -# define _LIBCPP_OBJECT_FORMAT_WASM 1 -# elif defined(_AIX) -# define _LIBCPP_OBJECT_FORMAT_XCOFF 1 -# else -// ... add new file formats here ... -# endif - -# if _LIBCPP_ABI_VERSION >= 2 -// Change short string representation so that string data starts at offset 0, -// improving its alignment in some cases. -# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT -// Fix deque iterator type in order to support incomplete types. -# define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE -// Fix undefined behavior in how std::list stores its linked nodes. -# define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB -// Fix undefined behavior in how __tree stores its end and parent nodes. -# define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB -// Fix undefined behavior in how __hash_table stores its pointer types. -# define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB -# define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB -# define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE -// Define a key function for `bad_function_call` in the library, to centralize -// its vtable and typeinfo to libc++ rather than having all other libraries -// using that class define their own copies. -# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION -// Override the default return value of exception::what() for -// bad_function_call::what() with a string that is specific to -// bad_function_call (see http://wg21.link/LWG2233). This is an ABI break -// because it changes the vtable layout of bad_function_call. -# define _LIBCPP_ABI_BAD_FUNCTION_CALL_GOOD_WHAT_MESSAGE -// Enable optimized version of __do_get_(un)signed which avoids redundant copies. -# define _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET -// Give reverse_iterator one data member of type T, not two. -// Also, in C++17 and later, don't derive iterator types from std::iterator. -# define _LIBCPP_ABI_NO_ITERATOR_BASES -// Use the smallest possible integer type to represent the index of the variant. -// Previously libc++ used "unsigned int" exclusively. -# define _LIBCPP_ABI_VARIANT_INDEX_TYPE_OPTIMIZATION -// Unstable attempt to provide a more optimized std::function -# define _LIBCPP_ABI_OPTIMIZED_FUNCTION -// All the regex constants must be distinct and nonzero. -# define _LIBCPP_ABI_REGEX_CONSTANTS_NONZERO -// Re-worked external template instantiations for std::string with a focus on -// performance and fast-path inlining. -# define _LIBCPP_ABI_STRING_OPTIMIZED_EXTERNAL_INSTANTIATION -// Enable clang::trivial_abi on std::unique_ptr. -# define _LIBCPP_ABI_ENABLE_UNIQUE_PTR_TRIVIAL_ABI -// Enable clang::trivial_abi on std::shared_ptr and std::weak_ptr -# define _LIBCPP_ABI_ENABLE_SHARED_PTR_TRIVIAL_ABI -// std::random_device holds some state when it uses an implementation that gets -// entropy from a file (see _LIBCPP_USING_DEV_RANDOM). When switching from this -// implementation to another one on a platform that has already shipped -// std::random_device, one needs to retain the same object layout to remain ABI -// compatible. This switch removes these workarounds for platforms that don't care -// about ABI compatibility. -# define _LIBCPP_ABI_NO_RANDOM_DEVICE_COMPATIBILITY_LAYOUT -// Don't export the legacy __basic_string_common class and its methods from the built library. -# define _LIBCPP_ABI_DO_NOT_EXPORT_BASIC_STRING_COMMON -// Don't export the legacy __vector_base_common class and its methods from the built library. -# define _LIBCPP_ABI_DO_NOT_EXPORT_VECTOR_BASE_COMMON -// According to the Standard, `bitset::operator[] const` returns bool -# define _LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL -// Fix the implementation of CityHash used for std::hash. -// This is an ABI break because `std::hash` will return a different result, -// which means that hashing the same object in translation units built against -// different versions of libc++ can return inconsistent results. This is especially -// tricky since std::hash is used in the implementation of unordered containers. -// -// The incorrect implementation of CityHash has the problem that it drops some -// bits on the floor. -# define _LIBCPP_ABI_FIX_CITYHASH_IMPLEMENTATION -// Remove the base 10 implementation of std::to_chars from the dylib. -// The implementation moved to the header, but we still export the symbols from -// the dylib for backwards compatibility. -# define _LIBCPP_ABI_DO_NOT_EXPORT_TO_CHARS_BASE_10 -# elif _LIBCPP_ABI_VERSION == 1 -# if !(defined(_LIBCPP_OBJECT_FORMAT_COFF) || defined(_LIBCPP_OBJECT_FORMAT_XCOFF)) -// Enable compiling copies of now inline methods into the dylib to support -// applications compiled against older libraries. This is unnecessary with -// COFF dllexport semantics, since dllexport forces a non-inline definition -// of inline functions to be emitted anyway. Our own non-inline copy would -// conflict with the dllexport-emitted copy, so we disable it. For XCOFF, -// the linker will take issue with the symbols in the shared object if the -// weak inline methods get visibility (such as from -fvisibility-inlines-hidden), -// so disable it. -# define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS -# endif -// Feature macros for disabling pre ABI v1 features. All of these options -// are deprecated. -# if defined(__FreeBSD__) -# define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR -# endif -// For XCOFF linkers, we have problems if we see a weak hidden version of a symbol -// in user code (like you get with -fvisibility-inlines-hidden) and then a strong def -// in the library, so we need to always rely on the library version. -# if defined(_AIX) -# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION -# endif -# endif - -# if defined(_LIBCPP_BUILDING_LIBRARY) || _LIBCPP_ABI_VERSION >= 2 -// Enable additional explicit instantiations of iostreams components. This -// reduces the number of weak definitions generated in programs that use -// iostreams by providing a single strong definition in the shared library. -# define _LIBCPP_ABI_ENABLE_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 - -// Define a key function for `bad_function_call` in the library, to centralize -// its vtable and typeinfo to libc++ rather than having all other libraries -// using that class define their own copies. -# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION -# endif - -# define _LIBCPP_TOSTRING2(x) #x -# define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) - -// NOLINTNEXTLINE(libcpp-cpp-version-check) -# if __cplusplus < 201103L -# define _LIBCPP_CXX03_LANG -# endif - -# ifndef __has_attribute -# define __has_attribute(__x) 0 -# endif - -# ifndef __has_builtin -# define __has_builtin(__x) 0 -# endif - -# ifndef __has_extension -# define __has_extension(__x) 0 -# endif - -# ifndef __has_feature -# define __has_feature(__x) 0 -# endif - -# ifndef __has_cpp_attribute -# define __has_cpp_attribute(__x) 0 -# endif - -# ifndef __has_constexpr_builtin -# define __has_constexpr_builtin(x) 0 -# endif - -// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by -// the compiler and '1' otherwise. -# ifndef __is_identifier -# define __is_identifier(__x) 1 -# endif - -# ifndef __has_declspec_attribute -# define __has_declspec_attribute(__x) 0 -# endif - -# define __has_keyword(__x) !(__is_identifier(__x)) - -# ifndef __has_include -# define __has_include(...) 0 -# endif - -# if !defined(_LIBCPP_COMPILER_CLANG_BASED) && __cplusplus < 201103L -# error "libc++ only supports C++03 with Clang-based compilers. Please enable C++11" -# endif - -// FIXME: ABI detection should be done via compiler builtin macros. This -// is just a placeholder until Clang implements such macros. For now assume -// that Windows compilers pretending to be MSVC++ target the Microsoft ABI, -// and allow the user to explicitly specify the ABI to handle cases where this -// heuristic falls short. -# if defined(_LIBCPP_ABI_FORCE_ITANIUM) && defined(_LIBCPP_ABI_FORCE_MICROSOFT) -# error "Only one of _LIBCPP_ABI_FORCE_ITANIUM and _LIBCPP_ABI_FORCE_MICROSOFT can be defined" -# elif defined(_LIBCPP_ABI_FORCE_ITANIUM) -# define _LIBCPP_ABI_ITANIUM -# elif defined(_LIBCPP_ABI_FORCE_MICROSOFT) -# define _LIBCPP_ABI_MICROSOFT -# else -# if defined(_WIN32) && defined(_MSC_VER) -# define _LIBCPP_ABI_MICROSOFT -# else -# define _LIBCPP_ABI_ITANIUM -# endif -# endif - -# if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME) -# define _LIBCPP_ABI_VCRUNTIME -# endif - -# if __has_feature(experimental_library) -# ifndef _LIBCPP_ENABLE_EXPERIMENTAL -# define _LIBCPP_ENABLE_EXPERIMENTAL -# endif -# endif - -// Incomplete features get their own specific disabling flags. This makes it -// easier to grep for target specific flags once the feature is complete. -# if !defined(_LIBCPP_ENABLE_EXPERIMENTAL) && !defined(_LIBCPP_BUILDING_LIBRARY) -# define _LIBCPP_HAS_NO_INCOMPLETE_PSTL -# endif - -// Need to detect which libc we're using if we're on Linux. -# if defined(__linux__) -# include -# if defined(__GLIBC_PREREQ) -# define _LIBCPP_GLIBC_PREREQ(a, b) __GLIBC_PREREQ(a, b) -# else -# define _LIBCPP_GLIBC_PREREQ(a, b) 0 -# endif // defined(__GLIBC_PREREQ) -# endif // defined(__linux__) - -# if defined(__MVS__) -# include // for __NATIVE_ASCII_F -# endif - -# ifdef __LITTLE_ENDIAN__ -# if __LITTLE_ENDIAN__ -# define _LIBCPP_LITTLE_ENDIAN -# endif // __LITTLE_ENDIAN__ -# endif // __LITTLE_ENDIAN__ - -# ifdef __BIG_ENDIAN__ -# if __BIG_ENDIAN__ -# define _LIBCPP_BIG_ENDIAN -# endif // __BIG_ENDIAN__ -# endif // __BIG_ENDIAN__ - -# ifdef __BYTE_ORDER__ -# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ -# define _LIBCPP_LITTLE_ENDIAN -# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ -# define _LIBCPP_BIG_ENDIAN -# endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ -# endif // __BYTE_ORDER__ - -# ifdef __FreeBSD__ -# include -# include -# if _BYTE_ORDER == _LITTLE_ENDIAN -# define _LIBCPP_LITTLE_ENDIAN -# else // _BYTE_ORDER == _LITTLE_ENDIAN -# define _LIBCPP_BIG_ENDIAN -# endif // _BYTE_ORDER == _LITTLE_ENDIAN -# endif // __FreeBSD__ - -# if defined(__NetBSD__) || defined(__OpenBSD__) -# include -# if _BYTE_ORDER == _LITTLE_ENDIAN -# define _LIBCPP_LITTLE_ENDIAN -# else // _BYTE_ORDER == _LITTLE_ENDIAN -# define _LIBCPP_BIG_ENDIAN -# endif // _BYTE_ORDER == _LITTLE_ENDIAN -# endif // defined(__NetBSD__) || defined(__OpenBSD__) - -# if defined(_WIN32) -# define _LIBCPP_WIN32API -# define _LIBCPP_LITTLE_ENDIAN -# define _LIBCPP_SHORT_WCHAR 1 -// Both MinGW and native MSVC provide a "MSVC"-like environment -# define _LIBCPP_MSVCRT_LIKE -// If mingw not explicitly detected, assume using MS C runtime only if -// a MS compatibility version is specified. -# if defined(_MSC_VER) && !defined(__MINGW32__) -# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library -# endif -# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) -# define _LIBCPP_HAS_BITSCAN64 -# endif -# define _LIBCPP_HAS_OPEN_WITH_WCHAR -# endif // defined(_WIN32) - -# if defined(_AIX) && !defined(__64BIT__) -// The size of wchar is 2 byte on 32-bit mode on AIX. -# define _LIBCPP_SHORT_WCHAR 1 -# endif - -// Libc++ supports various implementations of std::random_device. -// -// _LIBCPP_USING_DEV_RANDOM -// Read entropy from the given file, by default `/dev/urandom`. -// If a token is provided, it is assumed to be the path to a file -// to read entropy from. This is the default behavior if nothing -// else is specified. This implementation requires storing state -// inside `std::random_device`. -// -// _LIBCPP_USING_ARC4_RANDOM -// Use arc4random(). This allows obtaining random data even when -// using sandboxing mechanisms. On some platforms like Apple, this -// is the recommended source of entropy for user-space programs. -// When this option is used, the token passed to `std::random_device`'s -// constructor *must* be "/dev/urandom" -- anything else is an error. -// -// _LIBCPP_USING_GETENTROPY -// Use getentropy(). -// When this option is used, the token passed to `std::random_device`'s -// constructor *must* be "/dev/urandom" -- anything else is an error. -// -// _LIBCPP_USING_FUCHSIA_CPRNG -// Use Fuchsia's zx_cprng_draw() system call, which is specified to -// deliver high-quality entropy and cannot fail. -// When this option is used, the token passed to `std::random_device`'s -// constructor *must* be "/dev/urandom" -- anything else is an error. -// -// _LIBCPP_USING_NACL_RANDOM -// NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, -// including accesses to the special files under `/dev`. This implementation -// uses the NaCL syscall `nacl_secure_random_init()` to get entropy. -// When this option is used, the token passed to `std::random_device`'s -// constructor *must* be "/dev/urandom" -- anything else is an error. -// -// _LIBCPP_USING_WIN32_RANDOM -// Use rand_s(), for use on Windows. -// When this option is used, the token passed to `std::random_device`'s -// constructor *must* be "/dev/urandom" -- anything else is an error. -# if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \ - defined(__DragonFly__) -# define _LIBCPP_USING_ARC4_RANDOM -# elif defined(__wasi__) || defined(__EMSCRIPTEN__) -# define _LIBCPP_USING_GETENTROPY -# elif defined(__Fuchsia__) -# define _LIBCPP_USING_FUCHSIA_CPRNG -# elif defined(__native_client__) -# define _LIBCPP_USING_NACL_RANDOM -# elif defined(_LIBCPP_WIN32API) -# define _LIBCPP_USING_WIN32_RANDOM -# else -# define _LIBCPP_USING_DEV_RANDOM -# endif - -# if !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) -# include -# if __BYTE_ORDER == __LITTLE_ENDIAN -# define _LIBCPP_LITTLE_ENDIAN -# elif __BYTE_ORDER == __BIG_ENDIAN -# define _LIBCPP_BIG_ENDIAN -# else // __BYTE_ORDER == __BIG_ENDIAN -# error unable to determine endian -# endif -# endif // !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) - -# if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC) -# define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) -# else -# define _LIBCPP_NO_CFI -# endif - -# ifndef _LIBCPP_CXX03_LANG - -# define _LIBCPP_ALIGNOF(_Tp) alignof(_Tp) -# define _ALIGNAS_TYPE(x) alignas(x) -# define _ALIGNAS(x) alignas(x) -# define _LIBCPP_NORETURN [[noreturn]] -# define _NOEXCEPT noexcept -# define _NOEXCEPT_(x) noexcept(x) -# define _LIBCPP_CONSTEXPR constexpr - -# else - -# define _LIBCPP_ALIGNOF(_Tp) _Alignof(_Tp) -# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) -# define _ALIGNAS(x) __attribute__((__aligned__(x))) -# define _LIBCPP_NORETURN __attribute__((__noreturn__)) -# define _LIBCPP_HAS_NO_NOEXCEPT -# define nullptr __nullptr -# define _NOEXCEPT throw() -# define _NOEXCEPT_(x) -# define static_assert(...) _Static_assert(__VA_ARGS__) -# define decltype(...) __decltype(__VA_ARGS__) -# define _LIBCPP_CONSTEXPR - -typedef __char16_t char16_t; -typedef __char32_t char32_t; - -# endif - -# if !defined(__cpp_exceptions) || __cpp_exceptions < 199711L -# define _LIBCPP_HAS_NO_EXCEPTIONS -# endif - -# define _LIBCPP_PREFERRED_ALIGNOF(_Tp) __alignof(_Tp) - -# if defined(_LIBCPP_COMPILER_CLANG_BASED) - -# if defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && (!defined(__arm__) || __ARM_ARCH_7K__ >= 2) -# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT -# endif - -// Objective-C++ features (opt-in) -# if __has_feature(objc_arc) -# define _LIBCPP_HAS_OBJC_ARC -# endif - -# if __has_feature(objc_arc_weak) -# define _LIBCPP_HAS_OBJC_ARC_WEAK -# endif - -# if __has_extension(blocks) -# define _LIBCPP_HAS_EXTENSION_BLOCKS -# endif - -# if defined(_LIBCPP_HAS_EXTENSION_BLOCKS) && defined(__APPLE__) -# define _LIBCPP_HAS_BLOCKS_RUNTIME -# endif - -# if !__has_feature(address_sanitizer) -# define _LIBCPP_HAS_NO_ASAN -# endif - -// Allow for build-time disabling of unsigned integer sanitization -# if __has_attribute(no_sanitize) -# define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) -# endif - -# define _LIBCPP_ALWAYS_INLINE __attribute__((__always_inline__)) - -# define _LIBCPP_DISABLE_EXTENSION_WARNING __extension__ - -# elif defined(_LIBCPP_COMPILER_GCC) - -# if !defined(__SANITIZE_ADDRESS__) -# define _LIBCPP_HAS_NO_ASAN -# endif - -# define _LIBCPP_ALWAYS_INLINE __attribute__((__always_inline__)) - -# define _LIBCPP_DISABLE_EXTENSION_WARNING __extension__ - -# endif // _LIBCPP_COMPILER_[CLANG|GCC] - -# if defined(_LIBCPP_OBJECT_FORMAT_COFF) - -# ifdef _DLL -# define _LIBCPP_CRT_FUNC __declspec(dllimport) -# else -# define _LIBCPP_CRT_FUNC -# endif - -# if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) || (defined(__MINGW32__) && !defined(_LIBCPP_BUILDING_LIBRARY)) -# define _LIBCPP_DLL_VIS -# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS -# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS -# define _LIBCPP_OVERRIDABLE_FUNC_VIS -# define _LIBCPP_EXPORTED_FROM_ABI -# elif defined(_LIBCPP_BUILDING_LIBRARY) -# define _LIBCPP_DLL_VIS __declspec(dllexport) -# if defined(__MINGW32__) -# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS -# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS -# else -# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS -# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS -# endif -# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS -# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllexport) -# else -# define _LIBCPP_DLL_VIS __declspec(dllimport) -# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS -# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS -# define _LIBCPP_OVERRIDABLE_FUNC_VIS -# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllimport) -# endif - -# define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS -# define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS -# define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS -# define _LIBCPP_HIDDEN -# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS -# define _LIBCPP_TEMPLATE_VIS -# define _LIBCPP_TEMPLATE_DATA_VIS -# define _LIBCPP_ENUM_VIS - -# else - -# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) -# define _LIBCPP_VISIBILITY(vis) __attribute__((__visibility__(vis))) -# else -# define _LIBCPP_VISIBILITY(vis) -# endif - -# define _LIBCPP_HIDDEN _LIBCPP_VISIBILITY("hidden") -# define _LIBCPP_FUNC_VIS _LIBCPP_VISIBILITY("default") -# define _LIBCPP_TYPE_VIS _LIBCPP_VISIBILITY("default") -# define _LIBCPP_TEMPLATE_DATA_VIS _LIBCPP_VISIBILITY("default") -# define _LIBCPP_EXPORTED_FROM_ABI _LIBCPP_VISIBILITY("default") -# define _LIBCPP_EXCEPTION_ABI _LIBCPP_VISIBILITY("default") -# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_VISIBILITY("default") -# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS - -// TODO: Make this a proper customization point or remove the option to override it. -# ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS -# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_VISIBILITY("default") -# endif - -# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) -// The inline should be removed once PR32114 is resolved -# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN -# else -# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS -# endif - -# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) -# if __has_attribute(__type_visibility__) -# define _LIBCPP_TEMPLATE_VIS __attribute__((__type_visibility__("default"))) -# else -# define _LIBCPP_TEMPLATE_VIS __attribute__((__visibility__("default"))) -# endif -# else -# define _LIBCPP_TEMPLATE_VIS -# endif - -# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) -# define _LIBCPP_ENUM_VIS __attribute__((__type_visibility__("default"))) -# else -# define _LIBCPP_ENUM_VIS -# endif - -# endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) - -# if __has_attribute(exclude_from_explicit_instantiation) -# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION __attribute__((__exclude_from_explicit_instantiation__)) -# else -// Try to approximate the effect of exclude_from_explicit_instantiation -// (which is that entities are not assumed to be provided by explicit -// template instantiations in the dylib) by always inlining those entities. -# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION _LIBCPP_ALWAYS_INLINE -# endif - -// This macro marks a symbol as being hidden from libc++'s ABI. This is achieved -// on two levels: -// 1. The symbol is given hidden visibility, which ensures that users won't start exporting -// symbols from their dynamic library by means of using the libc++ headers. This ensures -// that those symbols stay private to the dynamic library in which it is defined. -// -// 2. The symbol is given an ABI tag that changes with each version of libc++. This ensures -// that no ODR violation can arise from mixing two TUs compiled with different versions -// of libc++ where we would have changed the definition of a symbol. If the symbols shared -// the same name, the ODR would require that their definitions be token-by-token equivalent, -// which basically prevents us from being able to make any change to any function in our -// headers. Using this ABI tag ensures that the symbol name is "bumped" artificially at -// each release, which lets us change the definition of these symbols at our leisure. -// Note that historically, this has been achieved in various ways, including force-inlining -// all functions or giving internal linkage to all functions. Both these (previous) solutions -// suffer from drawbacks that lead notably to code bloat. -// -// Note that we use _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION to ensure that we don't depend -// on _LIBCPP_HIDE_FROM_ABI methods of classes explicitly instantiated in the dynamic library. -// -// Also note that the _LIBCPP_HIDE_FROM_ABI_VIRTUAL macro should be used on virtual functions -// instead of _LIBCPP_HIDE_FROM_ABI. That macro does not use an ABI tag. Indeed, the mangled -// name of a virtual function is part of its ABI, since some architectures like arm64e can sign -// the virtual function pointer in the vtable based on the mangled name of the function. Since -// we use an ABI tag that changes with each released version, the mangled name of the virtual -// function would change, which is incorrect. Note that it doesn't make much sense to change -// the implementation of a virtual function in an ABI-incompatible way in the first place, -// since that would be an ABI break anyway. Hence, the lack of ABI tag should not be noticeable. -// -// TODO: We provide a escape hatch with _LIBCPP_NO_ABI_TAG for folks who want to avoid increasing -// the length of symbols with an ABI tag. In practice, we should remove the escape hatch and -// use compression mangling instead, see https://github.com/itanium-cxx-abi/cxx-abi/issues/70. -# ifndef _LIBCPP_NO_ABI_TAG -# define _LIBCPP_HIDE_FROM_ABI \ - _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION \ - __attribute__((__abi_tag__(_LIBCPP_TOSTRING(_LIBCPP_VERSIONED_IDENTIFIER)))) -# else -# define _LIBCPP_HIDE_FROM_ABI _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION -# endif -# define _LIBCPP_HIDE_FROM_ABI_VIRTUAL _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION - -// This macro provides a HIDE_FROM_ABI equivalent that can be applied to extern -// "C" function, as those lack mangling. -# define _LIBCPP_HIDE_FROM_ABI_C _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION - -# ifdef _LIBCPP_BUILDING_LIBRARY -# if _LIBCPP_ABI_VERSION > 1 -# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI -# else -# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 -# endif -# else -# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI -# endif - -// Just so we can migrate to the new macros gradually. -# define _LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI - -// Inline namespaces are available in Clang/GCC/MSVC regardless of C++ dialect. -// clang-format off -# define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_ABI_NAMESPACE { -# define _LIBCPP_END_NAMESPACE_STD }} -# define _VSTD std - -_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD - -# if _LIBCPP_STD_VER >= 17 -# define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \ - _LIBCPP_BEGIN_NAMESPACE_STD inline namespace __fs { namespace filesystem { -# else -# define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \ - _LIBCPP_BEGIN_NAMESPACE_STD namespace __fs { namespace filesystem { -# endif - -# define _LIBCPP_END_NAMESPACE_FILESYSTEM _LIBCPP_END_NAMESPACE_STD }} -// clang-format on - -# define _VSTD_FS std::__fs::filesystem - -# if __has_attribute(__enable_if__) -# define _LIBCPP_PREFERRED_OVERLOAD __attribute__((__enable_if__(true, ""))) -# endif - -# ifndef __SIZEOF_INT128__ -# define _LIBCPP_HAS_NO_INT128 -# endif - -# if __has_attribute(__malloc__) -# define _LIBCPP_NOALIAS __attribute__((__malloc__)) -# else -# define _LIBCPP_NOALIAS -# endif - -# if __has_attribute(__using_if_exists__) -# define _LIBCPP_USING_IF_EXISTS __attribute__((__using_if_exists__)) -# else -# define _LIBCPP_USING_IF_EXISTS -# endif - -# ifdef _LIBCPP_CXX03_LANG -# define _LIBCPP_DECLARE_STRONG_ENUM(x) \ - struct _LIBCPP_TYPE_VIS x { \ - enum __lx -// clang-format off -# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ - __lx __v_; \ - _LIBCPP_INLINE_VISIBILITY x(__lx __v) : __v_(__v) {} \ - _LIBCPP_INLINE_VISIBILITY explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ - _LIBCPP_INLINE_VISIBILITY operator int() const { return __v_; } \ - }; -// clang-format on - -# else // _LIBCPP_CXX03_LANG -# define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x -# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) -# endif // _LIBCPP_CXX03_LANG - -# if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT_LIKE) || defined(__NetBSD__) -# define _LIBCPP_LOCALE__L_EXTENSIONS 1 -# endif - -# ifdef __FreeBSD__ -# define _DECLARE_C99_LDBL_MATH 1 -# endif - -// If we are getting operator new from the MSVC CRT, then allocation overloads -// for align_val_t were added in 19.12, aka VS 2017 version 15.3. -# if defined(_LIBCPP_MSVCRT) && defined(_MSC_VER) && _MSC_VER < 1912 -# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION -# elif defined(_LIBCPP_ABI_VCRUNTIME) && !defined(__cpp_aligned_new) -// We're deferring to Microsoft's STL to provide aligned new et al. We don't -// have it unless the language feature test macro is defined. -# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION -# elif defined(__MVS__) -# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION -# endif - -# if defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) || (!defined(__cpp_aligned_new) || __cpp_aligned_new < 201606) -# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION -# endif - -// It is not yet possible to use aligned_alloc() on all Apple platforms since -// 10.15 was the first version to ship an implementation of aligned_alloc(). -# if defined(__APPLE__) -# if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101500) -# define _LIBCPP_HAS_NO_C11_ALIGNED_ALLOC -# endif -# elif defined(__ANDROID__) && __ANDROID_API__ < 28 -// Android only provides aligned_alloc when targeting API 28 or higher. -# define _LIBCPP_HAS_NO_C11_ALIGNED_ALLOC -# endif - -# if defined(__APPLE__) || defined(__FreeBSD__) -# define _LIBCPP_HAS_DEFAULTRUNELOCALE -# endif - -# if defined(__APPLE__) || defined(__FreeBSD__) -# define _LIBCPP_WCTYPE_IS_MASK -# endif - -# if _LIBCPP_STD_VER <= 17 || !defined(__cpp_char8_t) -# define _LIBCPP_HAS_NO_CHAR8_T -# endif - -// Deprecation macros. -// -// Deprecations warnings are always enabled, except when users explicitly opt-out -// by defining _LIBCPP_DISABLE_DEPRECATION_WARNINGS. -# if !defined(_LIBCPP_DISABLE_DEPRECATION_WARNINGS) -# if __has_attribute(__deprecated__) -# define _LIBCPP_DEPRECATED __attribute__((__deprecated__)) -# define _LIBCPP_DEPRECATED_(m) __attribute__((__deprecated__(m))) -# elif _LIBCPP_STD_VER >= 14 -# define _LIBCPP_DEPRECATED [[deprecated]] -# define _LIBCPP_DEPRECATED_(m) [[deprecated(m)]] -# else -# define _LIBCPP_DEPRECATED -# define _LIBCPP_DEPRECATED_(m) -# endif -# else -# define _LIBCPP_DEPRECATED -# define _LIBCPP_DEPRECATED_(m) -# endif - -# if !defined(_LIBCPP_CXX03_LANG) -# define _LIBCPP_DEPRECATED_IN_CXX11 _LIBCPP_DEPRECATED -# else -# define _LIBCPP_DEPRECATED_IN_CXX11 -# endif - -# if _LIBCPP_STD_VER >= 14 -# define _LIBCPP_DEPRECATED_IN_CXX14 _LIBCPP_DEPRECATED -# else -# define _LIBCPP_DEPRECATED_IN_CXX14 -# endif - -# if _LIBCPP_STD_VER >= 17 -# define _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_DEPRECATED -# else -# define _LIBCPP_DEPRECATED_IN_CXX17 -# endif - -# if _LIBCPP_STD_VER >= 20 -# define _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_DEPRECATED -# else -# define _LIBCPP_DEPRECATED_IN_CXX20 -# endif - -#if _LIBCPP_STD_VER >= 23 -# define _LIBCPP_DEPRECATED_IN_CXX23 _LIBCPP_DEPRECATED -#else -# define _LIBCPP_DEPRECATED_IN_CXX23 -#endif - -# if !defined(_LIBCPP_HAS_NO_CHAR8_T) -# define _LIBCPP_DEPRECATED_WITH_CHAR8_T _LIBCPP_DEPRECATED -# else -# define _LIBCPP_DEPRECATED_WITH_CHAR8_T -# endif - -// Macros to enter and leave a state where deprecation warnings are suppressed. -# if defined(_LIBCPP_COMPILER_CLANG_BASED) || defined(_LIBCPP_COMPILER_GCC) -# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH \ - _Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wdeprecated\"") \ - _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") -# define _LIBCPP_SUPPRESS_DEPRECATED_POP _Pragma("GCC diagnostic pop") -# else -# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH -# define _LIBCPP_SUPPRESS_DEPRECATED_POP -# endif - -# if _LIBCPP_STD_VER <= 11 -# define _LIBCPP_EXPLICIT_SINCE_CXX14 -# else -# define _LIBCPP_EXPLICIT_SINCE_CXX14 explicit -# endif - -# if _LIBCPP_STD_VER >= 23 -# define _LIBCPP_EXPLICIT_SINCE_CXX23 explicit -# else -# define _LIBCPP_EXPLICIT_SINCE_CXX23 -# endif - -# if _LIBCPP_STD_VER >= 14 -# define _LIBCPP_CONSTEXPR_SINCE_CXX14 constexpr -# else -# define _LIBCPP_CONSTEXPR_SINCE_CXX14 -# endif - -# if _LIBCPP_STD_VER >= 17 -# define _LIBCPP_CONSTEXPR_SINCE_CXX17 constexpr -# else -# define _LIBCPP_CONSTEXPR_SINCE_CXX17 -# endif - -# if _LIBCPP_STD_VER >= 20 -# define _LIBCPP_CONSTEXPR_SINCE_CXX20 constexpr -# else -# define _LIBCPP_CONSTEXPR_SINCE_CXX20 -# endif - -# if _LIBCPP_STD_VER >= 23 -# define _LIBCPP_CONSTEXPR_SINCE_CXX23 constexpr -# else -# define _LIBCPP_CONSTEXPR_SINCE_CXX23 -# endif - -# if __has_cpp_attribute(nodiscard) -# define _LIBCPP_NODISCARD [[__nodiscard__]] -# else -// We can't use GCC's [[gnu::warn_unused_result]] and -// __attribute__((warn_unused_result)), because GCC does not silence them via -// (void) cast. -# define _LIBCPP_NODISCARD -# endif - -// _LIBCPP_NODISCARD_EXT may be used to apply [[nodiscard]] to entities not -// specified as such as an extension. -# if !defined(_LIBCPP_DISABLE_NODISCARD_EXT) -# define _LIBCPP_NODISCARD_EXT _LIBCPP_NODISCARD -# else -# define _LIBCPP_NODISCARD_EXT -# endif - -# if _LIBCPP_STD_VER >= 20 || !defined(_LIBCPP_DISABLE_NODISCARD_EXT) -# define _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_NODISCARD -# else -# define _LIBCPP_NODISCARD_AFTER_CXX17 -# endif - -# if __has_attribute(__no_destroy__) -# define _LIBCPP_NO_DESTROY __attribute__((__no_destroy__)) -# else -# define _LIBCPP_NO_DESTROY -# endif - -# ifndef _LIBCPP_HAS_NO_ASAN - extern "C" _LIBCPP_FUNC_VIS void - __sanitizer_annotate_contiguous_container(const void*, const void*, const void*, const void*); -# endif - -// Try to find out if RTTI is disabled. -# if !defined(__cpp_rtti) || __cpp_rtti < 199711L -# define _LIBCPP_HAS_NO_RTTI -# endif - -# ifndef _LIBCPP_WEAK -# define _LIBCPP_WEAK __attribute__((__weak__)) -# endif - -// Thread API -// clang-format off -# if !defined(_LIBCPP_HAS_NO_THREADS) && \ - !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ - !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \ - !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) - -# if defined(__FreeBSD__) || \ - defined(__wasi__) || \ - defined(__NetBSD__) || \ - defined(__OpenBSD__) || \ - defined(__NuttX__) || \ - defined(__linux__) || \ - defined(__GNU__) || \ - defined(__APPLE__) || \ - defined(__MVS__) || \ - defined(_AIX) || \ - defined(__EMSCRIPTEN__) -// clang-format on -# define _LIBCPP_HAS_THREAD_API_PTHREAD -# elif defined(__Fuchsia__) -// TODO(44575): Switch to C11 thread API when possible. -# define _LIBCPP_HAS_THREAD_API_PTHREAD -# elif defined(_LIBCPP_WIN32API) -# define _LIBCPP_HAS_THREAD_API_WIN32 -# else -# error "No thread API" -# endif // _LIBCPP_HAS_THREAD_API -# endif // _LIBCPP_HAS_NO_THREADS - -# if defined(_LIBCPP_HAS_THREAD_API_PTHREAD) -# if defined(__ANDROID__) && __ANDROID_API__ >= 30 -# define _LIBCPP_HAS_COND_CLOCKWAIT -# elif defined(_LIBCPP_GLIBC_PREREQ) -# if _LIBCPP_GLIBC_PREREQ(2, 30) -# define _LIBCPP_HAS_COND_CLOCKWAIT -# endif -# endif -# endif - -# if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) -# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ - _LIBCPP_HAS_NO_THREADS is not defined. -# endif - -# if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) -# error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ - _LIBCPP_HAS_NO_THREADS is defined. -# endif - -# if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) -# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ - _LIBCPP_HAS_NO_THREADS is defined. -# endif - -# if !defined(_LIBCPP_HAS_NO_THREADS) && !defined(__STDCPP_THREADS__) -# define __STDCPP_THREADS__ 1 -# endif - -// The glibc and Bionic implementation of pthreads implements -// pthread_mutex_destroy as nop for regular mutexes. Additionally, Win32 -// mutexes have no destroy mechanism. -// -// This optimization can't be performed on Apple platforms, where -// pthread_mutex_destroy can allow the kernel to release resources. -// See https://llvm.org/D64298 for details. -// -// TODO(EricWF): Enable this optimization on Bionic after speaking to their -// respective stakeholders. -// clang-format off -# if (defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && defined(__GLIBC__)) || \ - (defined(_LIBCPP_HAS_THREAD_API_C11) && defined(__Fuchsia__)) || \ - defined(_LIBCPP_HAS_THREAD_API_WIN32) -// clang-format on -# define _LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION -# endif - -// Destroying a condvar is a nop on Windows. -// -// This optimization can't be performed on Apple platforms, where -// pthread_cond_destroy can allow the kernel to release resources. -// See https://llvm.org/D64298 for details. -// -// TODO(EricWF): This is potentially true for some pthread implementations -// as well. -# if (defined(_LIBCPP_HAS_THREAD_API_C11) && defined(__Fuchsia__)) || defined(_LIBCPP_HAS_THREAD_API_WIN32) -# define _LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION -# endif - -// Some systems do not provide gets() in their C library, for security reasons. -# if defined(_LIBCPP_MSVCRT) || (defined(__FreeBSD_version) && __FreeBSD_version >= 1300043) || defined(__OpenBSD__) -# define _LIBCPP_C_HAS_NO_GETS -# endif - -# if defined(__BIONIC__) || defined(__NuttX__) || defined(__Fuchsia__) || defined(__wasi__) || \ - defined(_LIBCPP_HAS_MUSL_LIBC) || defined(__OpenBSD__) -# define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE -# endif - -# if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) -# define _LIBCPP_HAS_C_ATOMIC_IMP -# elif defined(_LIBCPP_COMPILER_GCC) -# define _LIBCPP_HAS_GCC_ATOMIC_IMP -# endif - -# if !defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) && \ - !defined(_LIBCPP_HAS_EXTERNAL_ATOMIC_IMP) -# define _LIBCPP_HAS_NO_ATOMIC_HEADER -# else -# ifndef _LIBCPP_ATOMIC_FLAG_TYPE -# define _LIBCPP_ATOMIC_FLAG_TYPE bool -# endif -# ifdef _LIBCPP_FREESTANDING -# define _LIBCPP_ATOMIC_ONLY_USE_BUILTINS -# endif -# endif - -# ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK -# define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK -# endif - -# if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) -# if defined(__clang__) && __has_attribute(acquire_capability) -// Work around the attribute handling in clang. When both __declspec and -// __attribute__ are present, the processing goes awry preventing the definition -// of the types. In MinGW mode, __declspec evaluates to __attribute__, and thus -// combining the two does work. -# if !defined(_MSC_VER) -# define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS -# endif -# endif -# endif - -# ifdef _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS -# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x) __attribute__((x)) -# else -# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x) -# endif - -# if _LIBCPP_STD_VER >= 20 -# define _LIBCPP_CONSTINIT constinit -# elif __has_attribute(__require_constant_initialization__) -# define _LIBCPP_CONSTINIT __attribute__((__require_constant_initialization__)) -# else -# define _LIBCPP_CONSTINIT -# endif - -# if __has_attribute(__diagnose_if__) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) -# define _LIBCPP_DIAGNOSE_WARNING(...) __attribute__((__diagnose_if__(__VA_ARGS__, "warning"))) -# else -# define _LIBCPP_DIAGNOSE_WARNING(...) -# endif - -// Use a function like macro to imply that it must be followed by a semicolon -# if __has_cpp_attribute(fallthrough) -# define _LIBCPP_FALLTHROUGH() [[fallthrough]] -# elif __has_attribute(__fallthrough__) -# define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__)) -# else -# define _LIBCPP_FALLTHROUGH() ((void)0) -# endif - -# if __has_cpp_attribute(_Clang::__lifetimebound__) -# define _LIBCPP_LIFETIMEBOUND [[_Clang::__lifetimebound__]] -# else -# define _LIBCPP_LIFETIMEBOUND -# endif - -# if __has_attribute(__nodebug__) -# define _LIBCPP_NODEBUG __attribute__((__nodebug__)) -# else -# define _LIBCPP_NODEBUG -# endif - -# if __has_attribute(__standalone_debug__) -# define _LIBCPP_STANDALONE_DEBUG __attribute__((__standalone_debug__)) -# else -# define _LIBCPP_STANDALONE_DEBUG -# endif - -# if __has_attribute(__preferred_name__) -# define _LIBCPP_PREFERRED_NAME(x) __attribute__((__preferred_name__(x))) -# else -# define _LIBCPP_PREFERRED_NAME(x) -# endif - -// We often repeat things just for handling wide characters in the library. -// When wide characters are disabled, it can be useful to have a quick way of -// disabling it without having to resort to #if-#endif, which has a larger -// impact on readability. -# if defined(_LIBCPP_HAS_NO_WIDE_CHARACTERS) -# define _LIBCPP_IF_WIDE_CHARACTERS(...) -# else -# define _LIBCPP_IF_WIDE_CHARACTERS(...) __VA_ARGS__ -# endif - -# if defined(_LIBCPP_ABI_MICROSOFT) && __has_declspec_attribute(empty_bases) -# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) -# else -# define _LIBCPP_DECLSPEC_EMPTY_BASES -# endif - -# if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) -# define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR -# define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS -# define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE -# define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -# define _LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION -# endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES - -# if defined(_LIBCPP_ENABLE_CXX20_REMOVED_FEATURES) -# define _LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_MEMBERS -# define _LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_VOID_SPECIALIZATION -# define _LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS -# define _LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS -# define _LIBCPP_ENABLE_CXX20_REMOVED_RAW_STORAGE_ITERATOR -# define _LIBCPP_ENABLE_CXX20_REMOVED_TYPE_TRAITS -# endif // _LIBCPP_ENABLE_CXX20_REMOVED_FEATURES - -# define _LIBCPP_PUSH_MACROS _Pragma("push_macro(\"min\")") _Pragma("push_macro(\"max\")") -# define _LIBCPP_POP_MACROS _Pragma("pop_macro(\"min\")") _Pragma("pop_macro(\"max\")") - -# ifndef _LIBCPP_NO_AUTO_LINK -# if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) -# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) -# pragma comment(lib, "c++.lib") -# else -# pragma comment(lib, "libc++.lib") -# endif -# endif // defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) -# endif // _LIBCPP_NO_AUTO_LINK - -// Configures the fopen close-on-exec mode character, if any. This string will -// be appended to any mode string used by fstream for fopen/fdopen. -// -// Not all platforms support this, but it helps avoid fd-leaks on platforms that -// do. -# if defined(__BIONIC__) -# define _LIBCPP_FOPEN_CLOEXEC_MODE "e" -# else -# define _LIBCPP_FOPEN_CLOEXEC_MODE -# endif - -// Support for _FILE_OFFSET_BITS=64 landed gradually in Android, so the full set -// of functions used in cstdio may not be available for low API levels when -// using 64-bit file offsets on LP32. -# if defined(__BIONIC__) && defined(__USE_FILE_OFFSET64) && __ANDROID_API__ < 24 -# define _LIBCPP_HAS_NO_FGETPOS_FSETPOS -# endif - -# if __has_attribute(__init_priority__) -# define _LIBCPP_INIT_PRIORITY_MAX __attribute__((__init_priority__(100))) -# else -# define _LIBCPP_INIT_PRIORITY_MAX -# endif - -# if __has_attribute(__format__) -// The attribute uses 1-based indices for ordinary and static member functions. -// The attribute uses 2-based indices for non-static member functions. -# define _LIBCPP_ATTRIBUTE_FORMAT(archetype, format_string_index, first_format_arg_index) \ - __attribute__((__format__(archetype, format_string_index, first_format_arg_index))) -# else -# define _LIBCPP_ATTRIBUTE_FORMAT(archetype, format_string_index, first_format_arg_index) /* nothing */ -# endif - -# if __has_cpp_attribute(msvc::no_unique_address) -// MSVC implements [[no_unique_address]] as a silent no-op currently. -// (If/when MSVC breaks its C++ ABI, it will be changed to work as intended.) -// However, MSVC implements [[msvc::no_unique_address]] which does what -// [[no_unique_address]] is supposed to do, in general. - -// Clang-cl does not yet (14.0) implement either [[no_unique_address]] or -// [[msvc::no_unique_address]] though. If/when it does implement -// [[msvc::no_unique_address]], this should be preferred though. -# define _LIBCPP_NO_UNIQUE_ADDRESS [[msvc::no_unique_address]] -# elif __has_cpp_attribute(no_unique_address) -# define _LIBCPP_NO_UNIQUE_ADDRESS [[__no_unique_address__]] -# else -# define _LIBCPP_NO_UNIQUE_ADDRESS /* nothing */ -// Note that this can be replaced by #error as soon as clang-cl -// implements msvc::no_unique_address, since there should be no C++20 -// compiler that doesn't support one of the two attributes at that point. -// We generally don't want to use this macro outside of C++20-only code, -// because using it conditionally in one language version only would make -// the ABI inconsistent. -# endif - -# ifdef _LIBCPP_COMPILER_CLANG_BASED -# define _LIBCPP_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push") -# define _LIBCPP_DIAGNOSTIC_POP _Pragma("clang diagnostic pop") -# define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) _Pragma(_LIBCPP_TOSTRING(clang diagnostic ignored str)) -# define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) -# elif defined(_LIBCPP_COMPILER_GCC) -# define _LIBCPP_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push") -# define _LIBCPP_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop") -# define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) -# define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) _Pragma(_LIBCPP_TOSTRING(GCC diagnostic ignored str)) -# else -# define _LIBCPP_DIAGNOSTIC_PUSH -# define _LIBCPP_DIAGNOSTIC_POP -# define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) -# define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) -# endif - -# if defined(_AIX) && !defined(_LIBCPP_COMPILER_GCC) -# define _LIBCPP_PACKED_BYTE_FOR_AIX _Pragma("pack(1)") -# define _LIBCPP_PACKED_BYTE_FOR_AIX_END _Pragma("pack(pop)") -# else -# define _LIBCPP_PACKED_BYTE_FOR_AIX /* empty */ -# define _LIBCPP_PACKED_BYTE_FOR_AIX_END /* empty */ -# endif - -# if __has_attribute(__packed__) -# define _LIBCPP_PACKED __attribute__((__packed__)) -# else -# define _LIBCPP_PACKED -# endif - -// c8rtomb() and mbrtoc8() were added in C++20 and C23. Support for these -// functions is gradually being added to existing C libraries. The conditions -// below check for known C library versions and conditions under which these -// functions are declared by the C library. -# define _LIBCPP_HAS_NO_C8RTOMB_MBRTOC8 -// GNU libc 2.36 and newer declare c8rtomb() and mbrtoc8() in C++ modes if -// __cpp_char8_t is defined or if C2X extensions are enabled. Determining -// the latter depends on internal GNU libc details that are not appropriate -// to depend on here, so any declarations present when __cpp_char8_t is not -// defined are ignored. -# if defined(_LIBCPP_GLIBC_PREREQ) -# if _LIBCPP_GLIBC_PREREQ(2, 36) && defined(__cpp_char8_t) -# undef _LIBCPP_HAS_NO_C8RTOMB_MBRTOC8 -# endif -# endif - -// There are a handful of public standard library types that are intended to -// support CTAD but don't need any explicit deduction guides to do so. This -// macro is used to mark them as such, which suppresses the -// '-Wctad-maybe-unsupported' compiler warning when CTAD is used in user code -// with these classes. -# if _LIBCPP_STD_VER >= 17 -# ifdef _LIBCPP_COMPILER_CLANG_BASED -# define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(_ClassName) \ - template \ - [[maybe_unused]] _ClassName(typename _Tag::__allow_ctad...)->_ClassName<_Tag...> -# else -# define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(ClassName) \ - template \ - ClassName(typename _Tag::__allow_ctad...)->ClassName<_Tag...> -# endif -# else -# define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(_ClassName) static_assert(true, "") -# endif - -// TODO(varconst): currently, there are bugs in Clang's intrinsics when handling Objective-C++ `id`, so don't use -// compiler intrinsics in the Objective-C++ mode. -# ifdef __OBJC__ -# define _LIBCPP_WORKAROUND_OBJCXX_COMPILER_INTRINSICS -# endif - -// TODO: Make this a proper configuration option -#define _PSTL_PAR_BACKEND_SERIAL - -#define _PSTL_PRAGMA(x) _Pragma(# x) - -// Enable SIMD for compilers that support OpenMP 4.0 -#if (defined(_OPENMP) && _OPENMP >= 201307) - -# define _PSTL_UDR_PRESENT -# define _PSTL_PRAGMA_SIMD _PSTL_PRAGMA(omp simd) -# define _PSTL_PRAGMA_DECLARE_SIMD _PSTL_PRAGMA(omp declare simd) -# define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) _PSTL_PRAGMA(omp simd reduction(PRM)) -# define _PSTL_PRAGMA_SIMD_SCAN(PRM) _PSTL_PRAGMA(omp simd reduction(inscan, PRM)) -# define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM) _PSTL_PRAGMA(omp scan inclusive(PRM)) -# define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM) _PSTL_PRAGMA(omp scan exclusive(PRM)) - -// Declaration of reduction functor, where -// NAME - the name of the functor -// OP - type of the callable object with the reduction operation -// omp_in - refers to the local partial result -// omp_out - refers to the final value of the combiner operator -// omp_priv - refers to the private copy of the initial value -// omp_orig - refers to the original variable to be reduced -# define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME, OP) \ - _PSTL_PRAGMA(omp declare reduction(NAME:OP : omp_out(omp_in)) initializer(omp_priv = omp_orig)) - -#else // (defined(_OPENMP) && _OPENMP >= 201307) - -# define _PSTL_PRAGMA_SIMD -# define _PSTL_PRAGMA_DECLARE_SIMD -# define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) -# define _PSTL_PRAGMA_SIMD_SCAN(PRM) -# define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM) -# define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM) -# define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME, OP) - -#endif // (defined(_OPENMP) && _OPENMP >= 201307) - -#define _PSTL_USE_NONTEMPORAL_STORES_IF_ALLOWED - -#endif // __cplusplus +// `<__config_dir/base_umbrella.h>` and `<__config_dir/utils.h>` are internal headers that aren't meant to be explicitly +// exported from `<__config>`. #endif // _LIBCPP___CONFIG diff --git a/libcxx/include/__config_dir/abi.h b/libcxx/include/__config_dir/abi.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/abi.h @@ -0,0 +1,160 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_ABI_H +#define _LIBCPP___CONFIG_DIR_ABI_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# if _LIBCPP_ABI_VERSION >= 2 +// Change short string representation so that string data starts at offset 0, +// improving its alignment in some cases. +# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT +// Fix deque iterator type in order to support incomplete types. +# define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE +// Fix undefined behavior in how std::list stores its linked nodes. +# define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB +// Fix undefined behavior in how __tree stores its end and parent nodes. +# define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB +// Fix undefined behavior in how __hash_table stores its pointer types. +# define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB +# define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB +# define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE +// Define a key function for `bad_function_call` in the library, to centralize +// its vtable and typeinfo to libc++ rather than having all other libraries +// using that class define their own copies. +# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION +// Override the default return value of exception::what() for +// bad_function_call::what() with a string that is specific to +// bad_function_call (see http://wg21.link/LWG2233). This is an ABI break +// because it changes the vtable layout of bad_function_call. +# define _LIBCPP_ABI_BAD_FUNCTION_CALL_GOOD_WHAT_MESSAGE +// Enable optimized version of __do_get_(un)signed which avoids redundant copies. +# define _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET +// Give reverse_iterator one data member of type T, not two. +// Also, in C++17 and later, don't derive iterator types from std::iterator. +# define _LIBCPP_ABI_NO_ITERATOR_BASES +// Use the smallest possible integer type to represent the index of the variant. +// Previously libc++ used "unsigned int" exclusively. +# define _LIBCPP_ABI_VARIANT_INDEX_TYPE_OPTIMIZATION +// Unstable attempt to provide a more optimized std::function +# define _LIBCPP_ABI_OPTIMIZED_FUNCTION +// All the regex constants must be distinct and nonzero. +# define _LIBCPP_ABI_REGEX_CONSTANTS_NONZERO +// Re-worked external template instantiations for std::string with a focus on +// performance and fast-path inlining. +# define _LIBCPP_ABI_STRING_OPTIMIZED_EXTERNAL_INSTANTIATION +// Enable clang::trivial_abi on std::unique_ptr. +# define _LIBCPP_ABI_ENABLE_UNIQUE_PTR_TRIVIAL_ABI +// Enable clang::trivial_abi on std::shared_ptr and std::weak_ptr +# define _LIBCPP_ABI_ENABLE_SHARED_PTR_TRIVIAL_ABI +// std::random_device holds some state when it uses an implementation that gets +// entropy from a file (see _LIBCPP_USING_DEV_RANDOM). When switching from this +// implementation to another one on a platform that has already shipped +// std::random_device, one needs to retain the same object layout to remain ABI +// compatible. This switch removes these workarounds for platforms that don't care +// about ABI compatibility. +# define _LIBCPP_ABI_NO_RANDOM_DEVICE_COMPATIBILITY_LAYOUT +// Don't export the legacy __basic_string_common class and its methods from the built library. +# define _LIBCPP_ABI_DO_NOT_EXPORT_BASIC_STRING_COMMON +// Don't export the legacy __vector_base_common class and its methods from the built library. +# define _LIBCPP_ABI_DO_NOT_EXPORT_VECTOR_BASE_COMMON +// According to the Standard, `bitset::operator[] const` returns bool +# define _LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL +// Fix the implementation of CityHash used for std::hash. +// This is an ABI break because `std::hash` will return a different result, +// which means that hashing the same object in translation units built against +// different versions of libc++ can return inconsistent results. This is especially +// tricky since std::hash is used in the implementation of unordered containers. +// +// The incorrect implementation of CityHash has the problem that it drops some +// bits on the floor. +# define _LIBCPP_ABI_FIX_CITYHASH_IMPLEMENTATION +// Remove the base 10 implementation of std::to_chars from the dylib. +// The implementation moved to the header, but we still export the symbols from +// the dylib for backwards compatibility. +# define _LIBCPP_ABI_DO_NOT_EXPORT_TO_CHARS_BASE_10 +# elif _LIBCPP_ABI_VERSION == 1 +# if !(defined(_LIBCPP_OBJECT_FORMAT_COFF) || defined(_LIBCPP_OBJECT_FORMAT_XCOFF)) +// Enable compiling copies of now inline methods into the dylib to support +// applications compiled against older libraries. This is unnecessary with +// COFF dllexport semantics, since dllexport forces a non-inline definition +// of inline functions to be emitted anyway. Our own non-inline copy would +// conflict with the dllexport-emitted copy, so we disable it. For XCOFF, +// the linker will take issue with the symbols in the shared object if the +// weak inline methods get visibility (such as from -fvisibility-inlines-hidden), +// so disable it. +# define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS +# endif +// Feature macros for disabling pre ABI v1 features. All of these options +// are deprecated. +# if defined(__FreeBSD__) +# define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR +# endif +// For XCOFF linkers, we have problems if we see a weak hidden version of a symbol +// in user code (like you get with -fvisibility-inlines-hidden) and then a strong def +// in the library, so we need to always rely on the library version. +# if defined(_AIX) +# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION +# endif +# endif + +# if defined(_LIBCPP_BUILDING_LIBRARY) || _LIBCPP_ABI_VERSION >= 2 +// Enable additional explicit instantiations of iostreams components. This +// reduces the number of weak definitions generated in programs that use +// iostreams by providing a single strong definition in the shared library. +# define _LIBCPP_ABI_ENABLE_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 + +// Define a key function for `bad_function_call` in the library, to centralize +// its vtable and typeinfo to libc++ rather than having all other libraries +// using that class define their own copies. +# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION +# endif + +// FIXME: ABI detection should be done via compiler builtin macros. This +// is just a placeholder until Clang implements such macros. For now assume +// that Windows compilers pretending to be MSVC++ target the Microsoft ABI, +// and allow the user to explicitly specify the ABI to handle cases where this +// heuristic falls short. +# if defined(_LIBCPP_ABI_FORCE_ITANIUM) && defined(_LIBCPP_ABI_FORCE_MICROSOFT) +# error "Only one of _LIBCPP_ABI_FORCE_ITANIUM and _LIBCPP_ABI_FORCE_MICROSOFT can be defined" +# elif defined(_LIBCPP_ABI_FORCE_ITANIUM) +# define _LIBCPP_ABI_ITANIUM +# elif defined(_LIBCPP_ABI_FORCE_MICROSOFT) +# define _LIBCPP_ABI_MICROSOFT +# else +# if defined(_WIN32) && defined(_MSC_VER) +# define _LIBCPP_ABI_MICROSOFT +# else +# define _LIBCPP_ABI_ITANIUM +# endif +# endif + +# if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME) +# define _LIBCPP_ABI_VCRUNTIME +# endif + +// Inline namespaces are available in Clang/GCC/MSVC regardless of C++ dialect. +// clang-format off +# define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_ABI_NAMESPACE { +# define _LIBCPP_END_NAMESPACE_STD }} +# define _VSTD std +// clang-format on + +_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_ABI_H diff --git a/libcxx/include/__config_dir/attributes.h b/libcxx/include/__config_dir/attributes.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/attributes.h @@ -0,0 +1,162 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_ATTRIBUTES_H +#define _LIBCPP___CONFIG_DIR_ATTRIBUTES_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# if defined(_LIBCPP_COMPILER_CLANG_BASED) + +# define _LIBCPP_ALWAYS_INLINE __attribute__((__always_inline__)) + +# define _LIBCPP_DISABLE_EXTENSION_WARNING __extension__ + +# elif defined(_LIBCPP_COMPILER_GCC) + +# define _LIBCPP_ALWAYS_INLINE __attribute__((__always_inline__)) + +# define _LIBCPP_DISABLE_EXTENSION_WARNING __extension__ + +# endif // _LIBCPP_COMPILER_[CLANG|GCC] + +# if __has_attribute(__enable_if__) +# define _LIBCPP_PREFERRED_OVERLOAD __attribute__((__enable_if__(true, ""))) +# endif + +# if __has_attribute(__malloc__) +# define _LIBCPP_NOALIAS __attribute__((__malloc__)) +# else +# define _LIBCPP_NOALIAS +# endif + +# if __has_attribute(__using_if_exists__) +# define _LIBCPP_USING_IF_EXISTS __attribute__((__using_if_exists__)) +# else +# define _LIBCPP_USING_IF_EXISTS +# endif + +# ifndef _LIBCPP_WEAK +# define _LIBCPP_WEAK __attribute__((__weak__)) +# endif + +# if _LIBCPP_STD_VER >= 20 +# define _LIBCPP_CONSTINIT constinit +# elif __has_attribute(__require_constant_initialization__) +# define _LIBCPP_CONSTINIT __attribute__((__require_constant_initialization__)) +# else +# define _LIBCPP_CONSTINIT +# endif + +# if __has_cpp_attribute(nodiscard) +# define _LIBCPP_NODISCARD [[__nodiscard__]] +# else +// We can't use GCC's [[gnu::warn_unused_result]] and +// __attribute__((warn_unused_result)), because GCC does not silence them via +// (void) cast. +# define _LIBCPP_NODISCARD +# endif + +# if __has_attribute(__diagnose_if__) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) +# define _LIBCPP_DIAGNOSE_WARNING(...) __attribute__((__diagnose_if__(__VA_ARGS__, "warning"))) +# else +# define _LIBCPP_DIAGNOSE_WARNING(...) +# endif + +// Use a function like macro to imply that it must be followed by a semicolon +# if __has_cpp_attribute(fallthrough) +# define _LIBCPP_FALLTHROUGH() [[fallthrough]] +# elif __has_attribute(__fallthrough__) +# define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__)) +# else +# define _LIBCPP_FALLTHROUGH() ((void)0) +# endif + +# if __has_cpp_attribute(_Clang::__lifetimebound__) +# define _LIBCPP_LIFETIMEBOUND [[_Clang::__lifetimebound__]] +# else +# define _LIBCPP_LIFETIMEBOUND +# endif + +# if __has_attribute(__nodebug__) +# define _LIBCPP_NODEBUG __attribute__((__nodebug__)) +# else +# define _LIBCPP_NODEBUG +# endif + +# if __has_attribute(__standalone_debug__) +# define _LIBCPP_STANDALONE_DEBUG __attribute__((__standalone_debug__)) +# else +# define _LIBCPP_STANDALONE_DEBUG +# endif + +# if __has_attribute(__preferred_name__) +# define _LIBCPP_PREFERRED_NAME(x) __attribute__((__preferred_name__(x))) +# else +# define _LIBCPP_PREFERRED_NAME(x) +# endif + +# if __has_attribute(__no_destroy__) +# define _LIBCPP_NO_DESTROY __attribute__((__no_destroy__)) +# else +# define _LIBCPP_NO_DESTROY +# endif + +# if __has_attribute(__format__) +// The attribute uses 1-based indices for ordinary and static member functions. +// The attribute uses 2-based indices for non-static member functions. +# define _LIBCPP_ATTRIBUTE_FORMAT(archetype, format_string_index, first_format_arg_index) \ + __attribute__((__format__(archetype, format_string_index, first_format_arg_index))) +# else +# define _LIBCPP_ATTRIBUTE_FORMAT(archetype, format_string_index, first_format_arg_index) /* nothing */ +# endif + +# if __has_cpp_attribute(msvc::no_unique_address) +// MSVC implements [[no_unique_address]] as a silent no-op currently. +// (If/when MSVC breaks its C++ ABI, it will be changed to work as intended.) +// However, MSVC implements [[msvc::no_unique_address]] which does what +// [[no_unique_address]] is supposed to do, in general. +// +// Clang-cl does not yet (14.0) implement either [[no_unique_address]] or +// [[msvc::no_unique_address]] though. If/when it does implement +// [[msvc::no_unique_address]], this should be preferred though. +# define _LIBCPP_NO_UNIQUE_ADDRESS [[msvc::no_unique_address]] +# elif __has_cpp_attribute(no_unique_address) +# define _LIBCPP_NO_UNIQUE_ADDRESS [[__no_unique_address__]] +# else +# define _LIBCPP_NO_UNIQUE_ADDRESS /* nothing */ +// Note that this can be replaced by #error as soon as clang-cl +// implements msvc::no_unique_address, since there should be no C++20 +// compiler that doesn't support one of the two attributes at that point. +// We generally don't want to use this macro outside of C++20-only code, +// because using it conditionally in one language version only would make +// the ABI inconsistent. +# endif + +# if __has_attribute(__init_priority__) +# define _LIBCPP_INIT_PRIORITY_MAX __attribute__((__init_priority__(100))) +# else +# define _LIBCPP_INIT_PRIORITY_MAX +# endif + +# if __has_attribute(__packed__) +# define _LIBCPP_PACKED __attribute__((__packed__)) +# else +# define _LIBCPP_PACKED +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_ATTRIBUTES_H diff --git a/libcxx/include/__availability b/libcxx/include/__config_dir/availability.h rename from libcxx/include/__availability rename to libcxx/include/__config_dir/availability.h --- a/libcxx/include/__availability +++ b/libcxx/include/__config_dir/availability.h @@ -7,15 +7,17 @@ // //===----------------------------------------------------------------------===// -#ifndef _LIBCPP___AVAILABILITY -#define _LIBCPP___AVAILABILITY +#ifndef _LIBCPP___CONFIG_DIR_AVAILABILITY_H +#define _LIBCPP___CONFIG_DIR_AVAILABILITY_H -#include <__config> +#include <__config_dir/base_umbrella.h> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) # pragma GCC system_header #endif +#ifdef __cplusplus + // Libc++ is shipped by various vendors. In particular, it is used as a system // library on macOS, iOS and other Apple platforms. In order for users to be // able to compile a binary that is intended to be deployed to an older version @@ -345,4 +347,6 @@ # define _LIBCPP_AVAILABILITY_THROW_BAD_VARIANT_ACCESS _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS #endif -#endif // _LIBCPP___AVAILABILITY +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_AVAILABILITY_H diff --git a/libcxx/include/__config_dir/base.h b/libcxx/include/__config_dir/base.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/base.h @@ -0,0 +1,120 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_BASE_H +#define _LIBCPP___CONFIG_DIR_BASE_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +// Aligned allocation. +// +// If we are getting operator new from the MSVC CRT, then allocation overloads +// for align_val_t were added in 19.12, aka VS 2017 version 15.3. +# if defined(_LIBCPP_MSVCRT) && defined(_MSC_VER) && _MSC_VER < 1912 +# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION +# elif defined(_LIBCPP_ABI_VCRUNTIME) && !defined(__cpp_aligned_new) +// We're deferring to Microsoft's STL to provide aligned new et al. We don't +// have it unless the language feature test macro is defined. +# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION +# elif defined(__MVS__) +# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION +# endif +// +# if defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) || (!defined(__cpp_aligned_new) || __cpp_aligned_new < 201606) +# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION +# endif +// +// It is not yet possible to use aligned_alloc() on all Apple platforms since +// 10.15 was the first version to ship an implementation of aligned_alloc(). +# if defined(__APPLE__) +# if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ + __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101500) +# define _LIBCPP_HAS_NO_C11_ALIGNED_ALLOC +# endif +# elif defined(__ANDROID__) && __ANDROID_API__ < 28 +// Android only provides aligned_alloc when targeting API 28 or higher. +# define _LIBCPP_HAS_NO_C11_ALIGNED_ALLOC +# endif + +// Apple. +# if defined(_LIBCPP_COMPILER_CLANG_BASED) + +# if defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && (!defined(__arm__) || __ARM_ARCH_7K__ >= 2) +# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT +# endif + +#endif // defined(_LIBCPP_COMPILER_CLANG_BASED) + +// z/OS +# if defined(__MVS__) +# include // for __NATIVE_ASCII_F +# endif + +// AIX. +// +# if defined(_AIX) && !defined(__64BIT__) +// The size of wchar is 2 byte on 32-bit mode on AIX. +# define _LIBCPP_SHORT_WCHAR 1 +# endif +// +# if defined(_AIX) && !defined(_LIBCPP_COMPILER_GCC) +# define _LIBCPP_PACKED_BYTE_FOR_AIX _Pragma("pack(1)") +# define _LIBCPP_PACKED_BYTE_FOR_AIX_END _Pragma("pack(pop)") +# else +# define _LIBCPP_PACKED_BYTE_FOR_AIX /* empty */ +# define _LIBCPP_PACKED_BYTE_FOR_AIX_END /* empty */ +# endif + +// Diagnostics. +# ifdef _LIBCPP_COMPILER_CLANG_BASED +# define _LIBCPP_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push") +# define _LIBCPP_DIAGNOSTIC_POP _Pragma("clang diagnostic pop") +# define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) _Pragma(_LIBCPP_TOSTRING(clang diagnostic ignored str)) +# define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) +# elif defined(_LIBCPP_COMPILER_GCC) +# define _LIBCPP_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push") +# define _LIBCPP_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop") +# define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) +# define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) _Pragma(_LIBCPP_TOSTRING(GCC diagnostic ignored str)) +# else +# define _LIBCPP_DIAGNOSTIC_PUSH +# define _LIBCPP_DIAGNOSTIC_POP +# define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) +# define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) +# endif + +// Miscellaneous. + +# if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT_LIKE) || defined(__NetBSD__) +# define _LIBCPP_LOCALE__L_EXTENSIONS 1 +# endif + +# if defined(__APPLE__) || defined(__FreeBSD__) +# define _LIBCPP_HAS_DEFAULTRUNELOCALE +# endif + +# if defined(__APPLE__) || defined(__FreeBSD__) +# define _LIBCPP_WCTYPE_IS_MASK +# endif + +// TODO(varconst): currently, there are bugs in Clang's intrinsics when handling Objective-C++ `id`, so don't use +// compiler intrinsics in the Objective-C++ mode. +# ifdef __OBJC__ +# define _LIBCPP_WORKAROUND_OBJCXX_COMPILER_INTRINSICS +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_BASE_H diff --git a/libcxx/include/__config_dir/base_umbrella.h b/libcxx/include/__config_dir/base_umbrella.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/base_umbrella.h @@ -0,0 +1,26 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_BASE_UMBRELLA_H +#define _LIBCPP___CONFIG_DIR_BASE_UMBRELLA_H + +// This header transitively includes the most commonly used, dependency-free headers. + +#include <__config_site> +#include <__config_dir/compiler_shims.h> +#include <__config_dir/features.h> +#include <__config_dir/object_format.h> +#include <__config_dir/utils.h> +#include <__config_dir/versions.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#endif // _LIBCPP___CONFIG_DIR_BASE_UMBRELLA_H diff --git a/libcxx/include/__config_dir/c_std_library.h b/libcxx/include/__config_dir/c_std_library.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/c_std_library.h @@ -0,0 +1,83 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_C_STD_LIBRARY_H +#define _LIBCPP___CONFIG_DIR_C_STD_LIBRARY_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +// Need to detect which libc we're using if we're on Linux. +# if defined(__linux__) +# include +# if defined(__GLIBC_PREREQ) +# define _LIBCPP_GLIBC_PREREQ(a, b) __GLIBC_PREREQ(a, b) +# else +# define _LIBCPP_GLIBC_PREREQ(a, b) 0 +# endif // defined(__GLIBC_PREREQ) +# endif // defined(__linux__) + +# ifdef __FreeBSD__ +# define _DECLARE_C99_LDBL_MATH 1 +# endif + +// Some systems do not provide gets() in their C library, for security reasons. +# if defined(_LIBCPP_MSVCRT) || (defined(__FreeBSD_version) && __FreeBSD_version >= 1300043) || defined(__OpenBSD__) +# define _LIBCPP_C_HAS_NO_GETS +# endif + +# if defined(__BIONIC__) || defined(__NuttX__) || defined(__Fuchsia__) || defined(__wasi__) || \ + defined(_LIBCPP_HAS_MUSL_LIBC) || defined(__OpenBSD__) +# define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE +# endif + +// c8rtomb() and mbrtoc8() were added in C++20 and C23. Support for these +// functions is gradually being added to existing C libraries. The conditions +// below check for known C library versions and conditions under which these +// functions are declared by the C library. +# define _LIBCPP_HAS_NO_C8RTOMB_MBRTOC8 +// GNU libc 2.36 and newer declare c8rtomb() and mbrtoc8() in C++ modes if +// __cpp_char8_t is defined or if C2X extensions are enabled. Determining +// the latter depends on internal GNU libc details that are not appropriate +// to depend on here, so any declarations present when __cpp_char8_t is not +// defined are ignored. +# if defined(_LIBCPP_GLIBC_PREREQ) +# if _LIBCPP_GLIBC_PREREQ(2, 36) && defined(__cpp_char8_t) +# undef _LIBCPP_HAS_NO_C8RTOMB_MBRTOC8 +# endif +# endif + +// Android C library. +// +// Configures the fopen close-on-exec mode character, if any. This string will +// be appended to any mode string used by fstream for fopen/fdopen. +// +// Not all platforms support this, but it helps avoid fd-leaks on platforms that +// do. +# if defined(__BIONIC__) +# define _LIBCPP_FOPEN_CLOEXEC_MODE "e" +# else +# define _LIBCPP_FOPEN_CLOEXEC_MODE +# endif +// +// Support for _FILE_OFFSET_BITS=64 landed gradually in Android, so the full set +// of functions used in cstdio may not be available for low API levels when +// using 64-bit file offsets on LP32. +# if defined(__BIONIC__) && defined(__USE_FILE_OFFSET64) && __ANDROID_API__ < 24 +# define _LIBCPP_HAS_NO_FGETPOS_FSETPOS +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_C_STD_LIBRARY_H diff --git a/libcxx/include/__config_dir/compiler_shims.h b/libcxx/include/__config_dir/compiler_shims.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/compiler_shims.h @@ -0,0 +1,63 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_COMPILER_SHIMS_H +#define _LIBCPP___CONFIG_DIR_COMPILER_SHIMS_H + +#include <__config_dir/utils.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# ifndef __has_attribute +# define __has_attribute(__x) 0 +# endif + +# ifndef __has_builtin +# define __has_builtin(__x) 0 +# endif + +# ifndef __has_extension +# define __has_extension(__x) 0 +# endif + +# ifndef __has_feature +# define __has_feature(__x) 0 +# endif + +# ifndef __has_cpp_attribute +# define __has_cpp_attribute(__x) 0 +# endif + +# ifndef __has_constexpr_builtin +# define __has_constexpr_builtin(x) 0 +# endif + +// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by +// the compiler and '1' otherwise. +# ifndef __is_identifier +# define __is_identifier(__x) 1 +# endif + +# ifndef __has_declspec_attribute +# define __has_declspec_attribute(__x) 0 +# endif + +# define __has_keyword(__x) !(__is_identifier(__x)) + +# ifndef __has_include +# define __has_include(...) 0 +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_COMPILER_SHIMS_H diff --git a/libcxx/include/__config_dir/deprecation.h b/libcxx/include/__config_dir/deprecation.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/deprecation.h @@ -0,0 +1,88 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_DEPRECATION_H +#define _LIBCPP___CONFIG_DIR_DEPRECATION_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +// Deprecations warnings are always enabled, except when users explicitly opt-out +// by defining _LIBCPP_DISABLE_DEPRECATION_WARNINGS. +# if !defined(_LIBCPP_DISABLE_DEPRECATION_WARNINGS) +# if __has_attribute(__deprecated__) +# define _LIBCPP_DEPRECATED __attribute__((__deprecated__)) +# define _LIBCPP_DEPRECATED_(m) __attribute__((__deprecated__(m))) +# elif _LIBCPP_STD_VER >= 14 +# define _LIBCPP_DEPRECATED [[deprecated]] +# define _LIBCPP_DEPRECATED_(m) [[deprecated(m)]] +# else +# define _LIBCPP_DEPRECATED +# define _LIBCPP_DEPRECATED_(m) +# endif +# else +# define _LIBCPP_DEPRECATED +# define _LIBCPP_DEPRECATED_(m) +# endif + +# if !defined(_LIBCPP_CXX03_LANG) +# define _LIBCPP_DEPRECATED_IN_CXX11 _LIBCPP_DEPRECATED +# else +# define _LIBCPP_DEPRECATED_IN_CXX11 +# endif + +# if _LIBCPP_STD_VER >= 14 +# define _LIBCPP_DEPRECATED_IN_CXX14 _LIBCPP_DEPRECATED +# else +# define _LIBCPP_DEPRECATED_IN_CXX14 +# endif + +# if _LIBCPP_STD_VER >= 17 +# define _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_DEPRECATED +# else +# define _LIBCPP_DEPRECATED_IN_CXX17 +# endif + +# if _LIBCPP_STD_VER >= 20 +# define _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_DEPRECATED +# else +# define _LIBCPP_DEPRECATED_IN_CXX20 +# endif + +#if _LIBCPP_STD_VER >= 23 +# define _LIBCPP_DEPRECATED_IN_CXX23 _LIBCPP_DEPRECATED +#else +# define _LIBCPP_DEPRECATED_IN_CXX23 +#endif + +# if !defined(_LIBCPP_HAS_NO_CHAR8_T) +# define _LIBCPP_DEPRECATED_WITH_CHAR8_T _LIBCPP_DEPRECATED +# else +# define _LIBCPP_DEPRECATED_WITH_CHAR8_T +# endif + +// Macros to enter and leave a state where deprecation warnings are suppressed. +# if defined(_LIBCPP_COMPILER_CLANG_BASED) || defined(_LIBCPP_COMPILER_GCC) +# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH \ + _Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wdeprecated\"") \ + _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") +# define _LIBCPP_SUPPRESS_DEPRECATED_POP _Pragma("GCC diagnostic pop") +# else +# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH +# define _LIBCPP_SUPPRESS_DEPRECATED_POP +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_DEPRECATION_H diff --git a/libcxx/include/__config_dir/endianness.h b/libcxx/include/__config_dir/endianness.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/endianness.h @@ -0,0 +1,77 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_ENDIANNESS_H +#define _LIBCPP___CONFIG_DIR_ENDIANNESS_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# ifdef __LITTLE_ENDIAN__ +# if __LITTLE_ENDIAN__ +# define _LIBCPP_LITTLE_ENDIAN +# endif // __LITTLE_ENDIAN__ +# endif // __LITTLE_ENDIAN__ + +# ifdef __BIG_ENDIAN__ +# if __BIG_ENDIAN__ +# define _LIBCPP_BIG_ENDIAN +# endif // __BIG_ENDIAN__ +# endif // __BIG_ENDIAN__ + +# ifdef __BYTE_ORDER__ +# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ +# define _LIBCPP_LITTLE_ENDIAN +# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +# define _LIBCPP_BIG_ENDIAN +# endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +# endif // __BYTE_ORDER__ + +# ifdef __FreeBSD__ +# include +# include +# if _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_LITTLE_ENDIAN +# else // _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_BIG_ENDIAN +# endif // _BYTE_ORDER == _LITTLE_ENDIAN +# endif // __FreeBSD__ + +# if defined(__NetBSD__) || defined(__OpenBSD__) +# include +# if _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_LITTLE_ENDIAN +# else // _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_BIG_ENDIAN +# endif // _BYTE_ORDER == _LITTLE_ENDIAN +# endif // defined(__NetBSD__) || defined(__OpenBSD__) + +# if defined(_WIN32) +# define _LIBCPP_LITTLE_ENDIAN +# endif // defined(_WIN32) + +# if !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) +# include +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define _LIBCPP_LITTLE_ENDIAN +# elif __BYTE_ORDER == __BIG_ENDIAN +# define _LIBCPP_BIG_ENDIAN +# else // __BYTE_ORDER == __BIG_ENDIAN +# error unable to determine endian +# endif +# endif // !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_ENDIANNESS_H diff --git a/libcxx/include/__config_dir/experimental.h b/libcxx/include/__config_dir/experimental.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/experimental.h @@ -0,0 +1,34 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_EXPERIMENTAL_H +#define _LIBCPP___CONFIG_DIR_EXPERIMENTAL_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus +# if __has_feature(experimental_library) +# ifndef _LIBCPP_ENABLE_EXPERIMENTAL +# define _LIBCPP_ENABLE_EXPERIMENTAL +# endif +# endif + +// Incomplete features get their own specific disabling flags. This makes it +// easier to grep for target specific flags once the feature is complete. +# if !defined(_LIBCPP_ENABLE_EXPERIMENTAL) && !defined(_LIBCPP_BUILDING_LIBRARY) +# define _LIBCPP_HAS_NO_INCOMPLETE_PSTL +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_EXPERIMENTAL_H diff --git a/libcxx/include/__config_dir/features.h b/libcxx/include/__config_dir/features.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/features.h @@ -0,0 +1,41 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_FEATURES_H +#define _LIBCPP___CONFIG_DIR_FEATURES_H + +#include <__config_dir/utils.h> +#include <__config_dir/versions.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# ifndef __SIZEOF_INT128__ +# define _LIBCPP_HAS_NO_INT128 +# endif + +# if _LIBCPP_STD_VER <= 17 || !defined(__cpp_char8_t) +# define _LIBCPP_HAS_NO_CHAR8_T +# endif + +# if !defined(__cpp_exceptions) || __cpp_exceptions < 199711L +# define _LIBCPP_HAS_NO_EXCEPTIONS +# endif + +// Try to find out if RTTI is disabled. +# if !defined(__cpp_rtti) || __cpp_rtti < 199711L +# define _LIBCPP_HAS_NO_RTTI +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_FEATURES_H diff --git a/libcxx/include/__config_dir/language_versions_support.h b/libcxx/include/__config_dir/language_versions_support.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/language_versions_support.h @@ -0,0 +1,182 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_LANGUAGE_VERSIONS_SUPPORT_H +#define _LIBCPP___CONFIG_DIR_LANGUAGE_VERSIONS_SUPPORT_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# ifndef _LIBCPP_CXX03_LANG + +# define _LIBCPP_ALIGNOF(_Tp) alignof(_Tp) +# define _ALIGNAS_TYPE(x) alignas(x) +# define _ALIGNAS(x) alignas(x) +# define _LIBCPP_NORETURN [[noreturn]] +# define _NOEXCEPT noexcept +# define _NOEXCEPT_(x) noexcept(x) +# define _LIBCPP_CONSTEXPR constexpr + +# else + +# define _LIBCPP_ALIGNOF(_Tp) _Alignof(_Tp) +# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) +# define _ALIGNAS(x) __attribute__((__aligned__(x))) +# define _LIBCPP_NORETURN __attribute__((__noreturn__)) +# define _LIBCPP_HAS_NO_NOEXCEPT +# define nullptr __nullptr +# define _NOEXCEPT throw() +# define _NOEXCEPT_(x) +# define static_assert(...) _Static_assert(__VA_ARGS__) +# define decltype(...) __decltype(__VA_ARGS__) +# define _LIBCPP_CONSTEXPR + +typedef __char16_t char16_t; +typedef __char32_t char32_t; + +# endif // #ifndef _LIBCPP_CXX03_LANG + +# define _LIBCPP_PREFERRED_ALIGNOF(_Tp) __alignof(_Tp) + +# if _LIBCPP_STD_VER <= 11 +# define _LIBCPP_EXPLICIT_SINCE_CXX14 +# else +# define _LIBCPP_EXPLICIT_SINCE_CXX14 explicit +# endif + +# if _LIBCPP_STD_VER >= 23 +# define _LIBCPP_EXPLICIT_SINCE_CXX23 explicit +# else +# define _LIBCPP_EXPLICIT_SINCE_CXX23 +# endif + +# if _LIBCPP_STD_VER >= 14 +# define _LIBCPP_CONSTEXPR_SINCE_CXX14 constexpr +# else +# define _LIBCPP_CONSTEXPR_SINCE_CXX14 +# endif + +# if _LIBCPP_STD_VER >= 17 +# define _LIBCPP_CONSTEXPR_SINCE_CXX17 constexpr +# else +# define _LIBCPP_CONSTEXPR_SINCE_CXX17 +# endif + +# if _LIBCPP_STD_VER >= 20 +# define _LIBCPP_CONSTEXPR_SINCE_CXX20 constexpr +# else +# define _LIBCPP_CONSTEXPR_SINCE_CXX20 +# endif + +# if _LIBCPP_STD_VER >= 23 +# define _LIBCPP_CONSTEXPR_SINCE_CXX23 constexpr +# else +# define _LIBCPP_CONSTEXPR_SINCE_CXX23 +# endif + +// _LIBCPP_NODISCARD_EXT may be used to apply [[nodiscard]] to entities not +// specified as such as an extension. +# if !defined(_LIBCPP_DISABLE_NODISCARD_EXT) +# define _LIBCPP_NODISCARD_EXT _LIBCPP_NODISCARD +# else +# define _LIBCPP_NODISCARD_EXT +# endif + +# if _LIBCPP_STD_VER >= 20 || !defined(_LIBCPP_DISABLE_NODISCARD_EXT) +# define _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_NODISCARD +# else +# define _LIBCPP_NODISCARD_AFTER_CXX17 +# endif + +// We often repeat things just for handling wide characters in the library. +// When wide characters are disabled, it can be useful to have a quick way of +// disabling it without having to resort to #if-#endif, which has a larger +// impact on readability. +# if defined(_LIBCPP_HAS_NO_WIDE_CHARACTERS) +# define _LIBCPP_IF_WIDE_CHARACTERS(...) +# else +# define _LIBCPP_IF_WIDE_CHARACTERS(...) __VA_ARGS__ +# endif + +// clang-format off +# if _LIBCPP_STD_VER >= 17 +# define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \ + _LIBCPP_BEGIN_NAMESPACE_STD inline namespace __fs { namespace filesystem { +# else +# define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \ + _LIBCPP_BEGIN_NAMESPACE_STD namespace __fs { namespace filesystem { +# endif + +# define _LIBCPP_END_NAMESPACE_FILESYSTEM _LIBCPP_END_NAMESPACE_STD }} +// clang-format on + +# define _VSTD_FS std::__fs::filesystem + +# if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) +# define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR +# define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS +# define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE +# define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS +# define _LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION +# endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES + +# if defined(_LIBCPP_ENABLE_CXX20_REMOVED_FEATURES) +# define _LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_MEMBERS +# define _LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_VOID_SPECIALIZATION +# define _LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS +# define _LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS +# define _LIBCPP_ENABLE_CXX20_REMOVED_RAW_STORAGE_ITERATOR +# define _LIBCPP_ENABLE_CXX20_REMOVED_TYPE_TRAITS +# endif // _LIBCPP_ENABLE_CXX20_REMOVED_FEATURES + +# ifdef _LIBCPP_CXX03_LANG +# define _LIBCPP_DECLARE_STRONG_ENUM(x) \ + struct _LIBCPP_TYPE_VIS x { \ + enum __lx +// clang-format off +# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ + __lx __v_; \ + _LIBCPP_INLINE_VISIBILITY x(__lx __v) : __v_(__v) {} \ + _LIBCPP_INLINE_VISIBILITY explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ + _LIBCPP_INLINE_VISIBILITY operator int() const { return __v_; } \ + }; +// clang-format on + +# else // _LIBCPP_CXX03_LANG +# define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x +# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) +# endif // _LIBCPP_CXX03_LANG + +// There are a handful of public standard library types that are intended to +// support CTAD but don't need any explicit deduction guides to do so. This +// macro is used to mark them as such, which suppresses the +// '-Wctad-maybe-unsupported' compiler warning when CTAD is used in user code +// with these classes. +# if _LIBCPP_STD_VER >= 17 +# ifdef _LIBCPP_COMPILER_CLANG_BASED +# define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(_ClassName) \ + template \ + [[maybe_unused]] _ClassName(typename _Tag::__allow_ctad...)->_ClassName<_Tag...> +# else +# define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(ClassName) \ + template \ + ClassName(typename _Tag::__allow_ctad...)->ClassName<_Tag...> +# endif +# else +# define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(_ClassName) static_assert(true, "") +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_LANGUAGE_VERSIONS_SUPPORT_H diff --git a/libcxx/include/__config_dir/objc.h b/libcxx/include/__config_dir/objc.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/objc.h @@ -0,0 +1,44 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_OBJC_H +#define _LIBCPP___CONFIG_DIR_OBJC_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# if defined(_LIBCPP_COMPILER_CLANG_BASED) + +// Objective-C++ features (opt-in) +# if __has_feature(objc_arc) +# define _LIBCPP_HAS_OBJC_ARC +# endif + +# if __has_feature(objc_arc_weak) +# define _LIBCPP_HAS_OBJC_ARC_WEAK +# endif + +# if __has_extension(blocks) +# define _LIBCPP_HAS_EXTENSION_BLOCKS +# endif + +# if defined(_LIBCPP_HAS_EXTENSION_BLOCKS) && defined(__APPLE__) +# define _LIBCPP_HAS_BLOCKS_RUNTIME +# endif + +# endif // _LIBCPP_COMPILER_CLANG + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_OBJC_H diff --git a/libcxx/include/__config_dir/object_format.h b/libcxx/include/__config_dir/object_format.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/object_format.h @@ -0,0 +1,37 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_OBJECT_FORMAT_H +#define _LIBCPP___CONFIG_DIR_OBJECT_FORMAT_H + +#include <__config_dir/utils.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# if defined(__ELF__) +# define _LIBCPP_OBJECT_FORMAT_ELF 1 +# elif defined(__MACH__) +# define _LIBCPP_OBJECT_FORMAT_MACHO 1 +# elif defined(_WIN32) +# define _LIBCPP_OBJECT_FORMAT_COFF 1 +# elif defined(__wasm__) +# define _LIBCPP_OBJECT_FORMAT_WASM 1 +# elif defined(_AIX) +# define _LIBCPP_OBJECT_FORMAT_XCOFF 1 +# else +// ... add new file formats here ... +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_OBJECT_FORMAT_H diff --git a/libcxx/include/__config_dir/platform_msvc.h b/libcxx/include/__config_dir/platform_msvc.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/platform_msvc.h @@ -0,0 +1,60 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_PLATFORM_MSVC_H +#define _LIBCPP___CONFIG_DIR_PLATFORM_MSVC_H + +#include <__config_dir/abi.h> +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# if defined(_WIN32) +# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) +# define _LIBCPP_HAS_BITSCAN64 +# endif +# define _LIBCPP_HAS_OPEN_WITH_WCHAR +# endif // defined(_WIN32) + +# if defined(_LIBCPP_OBJECT_FORMAT_COFF) + +# ifdef _DLL +# define _LIBCPP_CRT_FUNC __declspec(dllimport) +# else +# define _LIBCPP_CRT_FUNC +# endif + +# endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) + +# if defined(_LIBCPP_ABI_MICROSOFT) && __has_declspec_attribute(empty_bases) +# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) +# else +# define _LIBCPP_DECLSPEC_EMPTY_BASES +# endif + +# define _LIBCPP_PUSH_MACROS _Pragma("push_macro(\"min\")") _Pragma("push_macro(\"max\")") +# define _LIBCPP_POP_MACROS _Pragma("pop_macro(\"min\")") _Pragma("pop_macro(\"max\")") + +# ifndef _LIBCPP_NO_AUTO_LINK +# if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# pragma comment(lib, "c++.lib") +# else +# pragma comment(lib, "libc++.lib") +# endif +# endif // defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) +# endif // _LIBCPP_NO_AUTO_LINK + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_PLATFORM_MSVC_H diff --git a/libcxx/include/__config_dir/pstl.h b/libcxx/include/__config_dir/pstl.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/pstl.h @@ -0,0 +1,63 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_PSTL_H +#define _LIBCPP___CONFIG_DIR_PSTL_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +// TODO: Make this a proper configuration option +#define _PSTL_PAR_BACKEND_SERIAL + +#define _PSTL_PRAGMA(x) _Pragma(# x) + +// Enable SIMD for compilers that support OpenMP 4.0 +#if (defined(_OPENMP) && _OPENMP >= 201307) + +# define _PSTL_UDR_PRESENT +# define _PSTL_PRAGMA_SIMD _PSTL_PRAGMA(omp simd) +# define _PSTL_PRAGMA_DECLARE_SIMD _PSTL_PRAGMA(omp declare simd) +# define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) _PSTL_PRAGMA(omp simd reduction(PRM)) +# define _PSTL_PRAGMA_SIMD_SCAN(PRM) _PSTL_PRAGMA(omp simd reduction(inscan, PRM)) +# define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM) _PSTL_PRAGMA(omp scan inclusive(PRM)) +# define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM) _PSTL_PRAGMA(omp scan exclusive(PRM)) + +// Declaration of reduction functor, where +// NAME - the name of the functor +// OP - type of the callable object with the reduction operation +// omp_in - refers to the local partial result +// omp_out - refers to the final value of the combiner operator +// omp_priv - refers to the private copy of the initial value +// omp_orig - refers to the original variable to be reduced +# define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME, OP) \ + _PSTL_PRAGMA(omp declare reduction(NAME:OP : omp_out(omp_in)) initializer(omp_priv = omp_orig)) + +#else // (defined(_OPENMP) && _OPENMP >= 201307) + +# define _PSTL_PRAGMA_SIMD +# define _PSTL_PRAGMA_DECLARE_SIMD +# define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) +# define _PSTL_PRAGMA_SIMD_SCAN(PRM) +# define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM) +# define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM) +# define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME, OP) + +#endif // (defined(_OPENMP) && _OPENMP >= 201307) + +#define _PSTL_USE_NONTEMPORAL_STORES_IF_ALLOWED + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_PSTL_H diff --git a/libcxx/include/__config_dir/random_device.h b/libcxx/include/__config_dir/random_device.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/random_device.h @@ -0,0 +1,76 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_RANDOM_DEVICE_H +#define _LIBCPP___CONFIG_DIR_RANDOM_DEVICE_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +// Libc++ supports various implementations of std::random_device. +// +// _LIBCPP_USING_DEV_RANDOM +// Read entropy from the given file, by default `/dev/urandom`. +// If a token is provided, it is assumed to be the path to a file +// to read entropy from. This is the default behavior if nothing +// else is specified. This implementation requires storing state +// inside `std::random_device`. +// +// _LIBCPP_USING_ARC4_RANDOM +// Use arc4random(). This allows obtaining random data even when +// using sandboxing mechanisms. On some platforms like Apple, this +// is the recommended source of entropy for user-space programs. +// When this option is used, the token passed to `std::random_device`'s +// constructor *must* be "/dev/urandom" -- anything else is an error. +// +// _LIBCPP_USING_GETENTROPY +// Use getentropy(). +// When this option is used, the token passed to `std::random_device`'s +// constructor *must* be "/dev/urandom" -- anything else is an error. +// +// _LIBCPP_USING_FUCHSIA_CPRNG +// Use Fuchsia's zx_cprng_draw() system call, which is specified to +// deliver high-quality entropy and cannot fail. +// When this option is used, the token passed to `std::random_device`'s +// constructor *must* be "/dev/urandom" -- anything else is an error. +// +// _LIBCPP_USING_NACL_RANDOM +// NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, +// including accesses to the special files under `/dev`. This implementation +// uses the NaCL syscall `nacl_secure_random_init()` to get entropy. +// When this option is used, the token passed to `std::random_device`'s +// constructor *must* be "/dev/urandom" -- anything else is an error. +// +// _LIBCPP_USING_WIN32_RANDOM +// Use rand_s(), for use on Windows. +// When this option is used, the token passed to `std::random_device`'s +// constructor *must* be "/dev/urandom" -- anything else is an error. +# if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \ + defined(__DragonFly__) +# define _LIBCPP_USING_ARC4_RANDOM +# elif defined(__wasi__) || defined(__EMSCRIPTEN__) +# define _LIBCPP_USING_GETENTROPY +# elif defined(__Fuchsia__) +# define _LIBCPP_USING_FUCHSIA_CPRNG +# elif defined(__native_client__) +# define _LIBCPP_USING_NACL_RANDOM +# elif defined(_LIBCPP_WIN32API) +# define _LIBCPP_USING_WIN32_RANDOM +# else +# define _LIBCPP_USING_DEV_RANDOM +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_RANDOM_DEVICE_H diff --git a/libcxx/include/__config_dir/sanitizers.h b/libcxx/include/__config_dir/sanitizers.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/sanitizers.h @@ -0,0 +1,57 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_SANITIZERS_H +#define _LIBCPP___CONFIG_DIR_SANITIZERS_H + +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC) +# define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) +# else +# define _LIBCPP_NO_CFI +# endif + +# if defined(_LIBCPP_COMPILER_CLANG_BASED) + +# if !__has_feature(address_sanitizer) +# define _LIBCPP_HAS_NO_ASAN +# endif + +// Allow for build-time disabling of unsigned integer sanitization +# if __has_attribute(no_sanitize) +# define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) +# endif + +# elif defined(_LIBCPP_COMPILER_GCC) + +# if !defined(__SANITIZE_ADDRESS__) +# define _LIBCPP_HAS_NO_ASAN +# endif + +# endif // _LIBCPP_COMPILER_[CLANG|GCC] + +# ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK +# define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK +# endif + +# ifndef _LIBCPP_HAS_NO_ASAN + extern "C" _LIBCPP_FUNC_VIS void + __sanitizer_annotate_contiguous_container(const void*, const void*, const void*, const void*); +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_SANITIZERS_H diff --git a/libcxx/include/__config_dir/threading.h b/libcxx/include/__config_dir/threading.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/threading.h @@ -0,0 +1,148 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_THREADING_H +#define _LIBCPP___CONFIG_DIR_THREADING_H + +#include <__config_dir/base_umbrella.h> +#include <__config_dir/c_std_library.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +// clang-format off +# if !defined(_LIBCPP_HAS_NO_THREADS) && \ + !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ + !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \ + !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) + +# if defined(__FreeBSD__) || \ + defined(__wasi__) || \ + defined(__NetBSD__) || \ + defined(__OpenBSD__) || \ + defined(__NuttX__) || \ + defined(__linux__) || \ + defined(__GNU__) || \ + defined(__APPLE__) || \ + defined(__MVS__) || \ + defined(_AIX) || \ + defined(__EMSCRIPTEN__) +// clang-format on +# define _LIBCPP_HAS_THREAD_API_PTHREAD +# elif defined(__Fuchsia__) +// TODO(44575): Switch to C11 thread API when possible. +# define _LIBCPP_HAS_THREAD_API_PTHREAD +# elif defined(_LIBCPP_WIN32API) +# define _LIBCPP_HAS_THREAD_API_WIN32 +# else +# error "No thread API" +# endif // _LIBCPP_HAS_THREAD_API +# endif // _LIBCPP_HAS_NO_THREADS + +# if defined(_LIBCPP_HAS_THREAD_API_PTHREAD) +# if defined(__ANDROID__) && __ANDROID_API__ >= 30 +# define _LIBCPP_HAS_COND_CLOCKWAIT +# elif defined(_LIBCPP_GLIBC_PREREQ) +# if _LIBCPP_GLIBC_PREREQ(2, 30) +# define _LIBCPP_HAS_COND_CLOCKWAIT +# endif +# endif +# endif + +# if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) +# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ + _LIBCPP_HAS_NO_THREADS is not defined. +# endif + +# if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) +# error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ + _LIBCPP_HAS_NO_THREADS is defined. +# endif + +# if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) +# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ + _LIBCPP_HAS_NO_THREADS is defined. +# endif + +# if !defined(_LIBCPP_HAS_NO_THREADS) && !defined(__STDCPP_THREADS__) +# define __STDCPP_THREADS__ 1 +# endif + +// The glibc and Bionic implementation of pthreads implements +// pthread_mutex_destroy as nop for regular mutexes. Additionally, Win32 +// mutexes have no destroy mechanism. +// +// This optimization can't be performed on Apple platforms, where +// pthread_mutex_destroy can allow the kernel to release resources. +// See https://llvm.org/D64298 for details. +// +// TODO(EricWF): Enable this optimization on Bionic after speaking to their +// respective stakeholders. +// clang-format off +# if (defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && defined(__GLIBC__)) || \ + (defined(_LIBCPP_HAS_THREAD_API_C11) && defined(__Fuchsia__)) || \ + defined(_LIBCPP_HAS_THREAD_API_WIN32) +// clang-format on +# define _LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION +# endif + +// Destroying a condvar is a nop on Windows. +// +// This optimization can't be performed on Apple platforms, where +// pthread_cond_destroy can allow the kernel to release resources. +// See https://llvm.org/D64298 for details. +// +// TODO(EricWF): This is potentially true for some pthread implementations +// as well. +# if (defined(_LIBCPP_HAS_THREAD_API_C11) && defined(__Fuchsia__)) || defined(_LIBCPP_HAS_THREAD_API_WIN32) +# define _LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION +# endif + +# if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) +# define _LIBCPP_HAS_C_ATOMIC_IMP +# elif defined(_LIBCPP_COMPILER_GCC) +# define _LIBCPP_HAS_GCC_ATOMIC_IMP +# endif + +# if !defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) && \ + !defined(_LIBCPP_HAS_EXTERNAL_ATOMIC_IMP) +# define _LIBCPP_HAS_NO_ATOMIC_HEADER +# else +# ifndef _LIBCPP_ATOMIC_FLAG_TYPE +# define _LIBCPP_ATOMIC_FLAG_TYPE bool +# endif +# ifdef _LIBCPP_FREESTANDING +# define _LIBCPP_ATOMIC_ONLY_USE_BUILTINS +# endif +# endif + +# if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) +# if defined(__clang__) && __has_attribute(acquire_capability) +// Work around the attribute handling in clang. When both __declspec and +// __attribute__ are present, the processing goes awry preventing the definition +// of the types. In MinGW mode, __declspec evaluates to __attribute__, and thus +// combining the two does work. +# if !defined(_MSC_VER) +# define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS +# endif +# endif +# endif + +# ifdef _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS +# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x) __attribute__((x)) +# else +# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x) +# endif + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_THREADING_H diff --git a/libcxx/include/__config_dir/utils.h b/libcxx/include/__config_dir/utils.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/utils.h @@ -0,0 +1,29 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_UTILS_H +#define _LIBCPP___CONFIG_DIR_UTILS_H + +#if defined(_MSC_VER) && !defined(__clang__) +# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +# define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# endif +#endif + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +# define _LIBCPP_TOSTRING2(x) #x +# define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) + +# define _LIBCPP_CONCAT_IMPL(_X, _Y) _X##_Y +# define _LIBCPP_CONCAT(_X, _Y) _LIBCPP_CONCAT_IMPL(_X, _Y) + +#endif // _LIBCPP___CONFIG_DIR_UTILS_H diff --git a/libcxx/include/__config_dir/versions.h b/libcxx/include/__config_dir/versions.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/versions.h @@ -0,0 +1,86 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_VERSIONS_H +#define _LIBCPP___CONFIG_DIR_VERSIONS_H + +#include <__config_dir/utils.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#if defined(__apple_build_version__) +// Given AppleClang XX.Y.Z, _LIBCPP_APPLE_CLANG_VER is XXYZ (e.g. AppleClang 14.0.3 => 1403) +# define _LIBCPP_COMPILER_CLANG_BASED +# define _LIBCPP_APPLE_CLANG_VER (__apple_build_version__ / 10000) +#elif defined(__clang__) +# define _LIBCPP_COMPILER_CLANG_BASED +# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__) +#elif defined(__GNUC__) +# define _LIBCPP_COMPILER_GCC +#endif + +#ifdef __cplusplus + +// _LIBCPP_VERSION represents the version of libc++, which matches the version of LLVM. +// Given a LLVM release LLVM XX.YY.ZZ (e.g. LLVM 17.0.1 == 17.00.01), _LIBCPP_VERSION is +// defined to XXYYZZ. +# define _LIBCPP_VERSION 170000 + +// Valid C++ identifier that revs with every libc++ version. This can be used to +// generate identifiers that must be unique for every released libc++ version. +# define _LIBCPP_VERSIONED_IDENTIFIER _LIBCPP_CONCAT(v, _LIBCPP_VERSION) + +# if __STDC_HOSTED__ == 0 +# define _LIBCPP_FREESTANDING +# endif + +// NOLINTBEGIN(libcpp-cpp-version-check) +# ifndef _LIBCPP_STD_VER +# if __cplusplus <= 201103L +# define _LIBCPP_STD_VER 11 +# elif __cplusplus <= 201402L +# define _LIBCPP_STD_VER 14 +# elif __cplusplus <= 201703L +# define _LIBCPP_STD_VER 17 +# elif __cplusplus <= 202002L +# define _LIBCPP_STD_VER 20 +# elif __cplusplus <= 202302L +# define _LIBCPP_STD_VER 23 +# else +// Expected release year of the next C++ standard +# define _LIBCPP_STD_VER 26 +# endif +# endif // _LIBCPP_STD_VER +// NOLINTEND(libcpp-cpp-version-check) + +// NOLINTNEXTLINE(libcpp-cpp-version-check) +# if __cplusplus < 201103L +# define _LIBCPP_CXX03_LANG +# endif + +# if !defined(_LIBCPP_COMPILER_CLANG_BASED) && __cplusplus < 201103L +# error "libc++ only supports C++03 with Clang-based compilers. Please enable C++11" +# endif + +# if defined(_WIN32) +# define _LIBCPP_WIN32API +// Both MinGW and native MSVC provide a "MSVC"-like environment +# define _LIBCPP_MSVCRT_LIKE +// If mingw not explicitly detected, assume using MS C runtime only if +// a MS compatibility version is specified. +# if defined(_MSC_VER) && !defined(__MINGW32__) +# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library +# endif +# endif // defined(_WIN32) + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_VERSIONS_H diff --git a/libcxx/include/__config_dir/visibility.h b/libcxx/include/__config_dir/visibility.h new file mode 100644 --- /dev/null +++ b/libcxx/include/__config_dir/visibility.h @@ -0,0 +1,174 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___CONFIG_DIR_VISIBILITY_H +#define _LIBCPP___CONFIG_DIR_VISIBILITY_H + +#include <__config_dir/abi.h> +#include <__config_dir/base_umbrella.h> + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# pragma GCC system_header +#endif + +#ifdef __cplusplus + +# if defined(_LIBCPP_OBJECT_FORMAT_COFF) + +# if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) || (defined(__MINGW32__) && !defined(_LIBCPP_BUILDING_LIBRARY)) +# define _LIBCPP_DLL_VIS +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS +# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS +# define _LIBCPP_OVERRIDABLE_FUNC_VIS +# define _LIBCPP_EXPORTED_FROM_ABI +# elif defined(_LIBCPP_BUILDING_LIBRARY) +# define _LIBCPP_DLL_VIS __declspec(dllexport) +# if defined(__MINGW32__) +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS +# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS +# else +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS +# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS +# endif +# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS +# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllexport) +# else +# define _LIBCPP_DLL_VIS __declspec(dllimport) +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS +# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS +# define _LIBCPP_OVERRIDABLE_FUNC_VIS +# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllimport) +# endif + +# define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS +# define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS +# define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS +# define _LIBCPP_HIDDEN +# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS +# define _LIBCPP_TEMPLATE_VIS +# define _LIBCPP_TEMPLATE_DATA_VIS +# define _LIBCPP_ENUM_VIS + +# else + +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# define _LIBCPP_VISIBILITY(vis) __attribute__((__visibility__(vis))) +# else +# define _LIBCPP_VISIBILITY(vis) +# endif + +# define _LIBCPP_HIDDEN _LIBCPP_VISIBILITY("hidden") +# define _LIBCPP_FUNC_VIS _LIBCPP_VISIBILITY("default") +# define _LIBCPP_TYPE_VIS _LIBCPP_VISIBILITY("default") +# define _LIBCPP_TEMPLATE_DATA_VIS _LIBCPP_VISIBILITY("default") +# define _LIBCPP_EXPORTED_FROM_ABI _LIBCPP_VISIBILITY("default") +# define _LIBCPP_EXCEPTION_ABI _LIBCPP_VISIBILITY("default") +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_VISIBILITY("default") +# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS + +// TODO: Make this a proper customization point or remove the option to override it. +# ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS +# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_VISIBILITY("default") +# endif + +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +// The inline should be removed once PR32114 is resolved +# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN +# else +# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS +# endif + +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# if __has_attribute(__type_visibility__) +# define _LIBCPP_TEMPLATE_VIS __attribute__((__type_visibility__("default"))) +# else +# define _LIBCPP_TEMPLATE_VIS __attribute__((__visibility__("default"))) +# endif +# else +# define _LIBCPP_TEMPLATE_VIS +# endif + +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) +# define _LIBCPP_ENUM_VIS __attribute__((__type_visibility__("default"))) +# else +# define _LIBCPP_ENUM_VIS +# endif + +# endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) + +# if __has_attribute(exclude_from_explicit_instantiation) +# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION __attribute__((__exclude_from_explicit_instantiation__)) +# else +// Try to approximate the effect of exclude_from_explicit_instantiation +// (which is that entities are not assumed to be provided by explicit +// template instantiations in the dylib) by always inlining those entities. +# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION _LIBCPP_ALWAYS_INLINE +# endif + +// This macro marks a symbol as being hidden from libc++'s ABI. This is achieved +// on two levels: +// 1. The symbol is given hidden visibility, which ensures that users won't start exporting +// symbols from their dynamic library by means of using the libc++ headers. This ensures +// that those symbols stay private to the dynamic library in which it is defined. +// +// 2. The symbol is given an ABI tag that changes with each version of libc++. This ensures +// that no ODR violation can arise from mixing two TUs compiled with different versions +// of libc++ where we would have changed the definition of a symbol. If the symbols shared +// the same name, the ODR would require that their definitions be token-by-token equivalent, +// which basically prevents us from being able to make any change to any function in our +// headers. Using this ABI tag ensures that the symbol name is "bumped" artificially at +// each release, which lets us change the definition of these symbols at our leisure. +// Note that historically, this has been achieved in various ways, including force-inlining +// all functions or giving internal linkage to all functions. Both these (previous) solutions +// suffer from drawbacks that lead notably to code bloat. +// +// Note that we use _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION to ensure that we don't depend +// on _LIBCPP_HIDE_FROM_ABI methods of classes explicitly instantiated in the dynamic library. +// +// Also note that the _LIBCPP_HIDE_FROM_ABI_VIRTUAL macro should be used on virtual functions +// instead of _LIBCPP_HIDE_FROM_ABI. That macro does not use an ABI tag. Indeed, the mangled +// name of a virtual function is part of its ABI, since some architectures like arm64e can sign +// the virtual function pointer in the vtable based on the mangled name of the function. Since +// we use an ABI tag that changes with each released version, the mangled name of the virtual +// function would change, which is incorrect. Note that it doesn't make much sense to change +// the implementation of a virtual function in an ABI-incompatible way in the first place, +// since that would be an ABI break anyway. Hence, the lack of ABI tag should not be noticeable. +// +// TODO: We provide a escape hatch with _LIBCPP_NO_ABI_TAG for folks who want to avoid increasing +// the length of symbols with an ABI tag. In practice, we should remove the escape hatch and +// use compression mangling instead, see https://github.com/itanium-cxx-abi/cxx-abi/issues/70. +# ifndef _LIBCPP_NO_ABI_TAG +# define _LIBCPP_HIDE_FROM_ABI \ + _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION \ + __attribute__((__abi_tag__(_LIBCPP_TOSTRING(_LIBCPP_VERSIONED_IDENTIFIER)))) +# else +# define _LIBCPP_HIDE_FROM_ABI _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION +# endif +# define _LIBCPP_HIDE_FROM_ABI_VIRTUAL _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION + +// This macro provides a HIDE_FROM_ABI equivalent that can be applied to extern +// "C" function, as those lack mangling. +# define _LIBCPP_HIDE_FROM_ABI_C _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION + +# ifdef _LIBCPP_BUILDING_LIBRARY +# if _LIBCPP_ABI_VERSION > 1 +# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI +# else +# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 +# endif +# else +# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI +# endif + +// Just so we can migrate to the new macros gradually. +# define _LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI + +#endif // #ifdef __cplusplus + +#endif // _LIBCPP___CONFIG_DIR_VISIBILITY_H diff --git a/libcxx/include/__debug b/libcxx/include/__debug --- a/libcxx/include/__debug +++ b/libcxx/include/__debug @@ -11,7 +11,7 @@ #define _LIBCPP___DEBUG #include <__assert> -#include <__config> +#include <__config_dir/base.h> #include <__type_traits/is_constant_evaluated.h> #include diff --git a/libcxx/include/__exception/operations.h b/libcxx/include/__exception/operations.h --- a/libcxx/include/__exception/operations.h +++ b/libcxx/include/__exception/operations.h @@ -9,7 +9,6 @@ #ifndef _LIBCPP___EXCEPTION_OPERATIONS_H #define _LIBCPP___EXCEPTION_OPERATIONS_H -#include <__availability> #include <__config> #include diff --git a/libcxx/include/__filesystem/copy_options.h b/libcxx/include/__filesystem/copy_options.h --- a/libcxx/include/__filesystem/copy_options.h +++ b/libcxx/include/__filesystem/copy_options.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_COPY_OPTIONS_H #define _LIBCPP___FILESYSTEM_COPY_OPTIONS_H -#include <__availability> #include <__config> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) diff --git a/libcxx/include/__filesystem/directory_entry.h b/libcxx/include/__filesystem/directory_entry.h --- a/libcxx/include/__filesystem/directory_entry.h +++ b/libcxx/include/__filesystem/directory_entry.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_DIRECTORY_ENTRY_H #define _LIBCPP___FILESYSTEM_DIRECTORY_ENTRY_H -#include <__availability> #include <__chrono/time_point.h> #include <__compare/ordering.h> #include <__config> diff --git a/libcxx/include/__filesystem/directory_iterator.h b/libcxx/include/__filesystem/directory_iterator.h --- a/libcxx/include/__filesystem/directory_iterator.h +++ b/libcxx/include/__filesystem/directory_iterator.h @@ -11,7 +11,6 @@ #define _LIBCPP___FILESYSTEM_DIRECTORY_ITERATOR_H #include <__assert> -#include <__availability> #include <__config> #include <__filesystem/directory_entry.h> #include <__filesystem/directory_options.h> diff --git a/libcxx/include/__filesystem/directory_options.h b/libcxx/include/__filesystem/directory_options.h --- a/libcxx/include/__filesystem/directory_options.h +++ b/libcxx/include/__filesystem/directory_options.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_DIRECTORY_OPTIONS_H #define _LIBCPP___FILESYSTEM_DIRECTORY_OPTIONS_H -#include <__availability> #include <__config> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) diff --git a/libcxx/include/__filesystem/file_status.h b/libcxx/include/__filesystem/file_status.h --- a/libcxx/include/__filesystem/file_status.h +++ b/libcxx/include/__filesystem/file_status.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_FILE_STATUS_H #define _LIBCPP___FILESYSTEM_FILE_STATUS_H -#include <__availability> #include <__config> #include <__filesystem/file_type.h> #include <__filesystem/perms.h> diff --git a/libcxx/include/__filesystem/file_time_type.h b/libcxx/include/__filesystem/file_time_type.h --- a/libcxx/include/__filesystem/file_time_type.h +++ b/libcxx/include/__filesystem/file_time_type.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_FILE_TIME_TYPE_H #define _LIBCPP___FILESYSTEM_FILE_TIME_TYPE_H -#include <__availability> #include <__chrono/file_clock.h> #include <__chrono/time_point.h> #include <__config> diff --git a/libcxx/include/__filesystem/file_type.h b/libcxx/include/__filesystem/file_type.h --- a/libcxx/include/__filesystem/file_type.h +++ b/libcxx/include/__filesystem/file_type.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_FILE_TYPE_H #define _LIBCPP___FILESYSTEM_FILE_TYPE_H -#include <__availability> #include <__config> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) diff --git a/libcxx/include/__filesystem/filesystem_error.h b/libcxx/include/__filesystem/filesystem_error.h --- a/libcxx/include/__filesystem/filesystem_error.h +++ b/libcxx/include/__filesystem/filesystem_error.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H #define _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H -#include <__availability> #include <__config> #include <__filesystem/path.h> #include <__memory/shared_ptr.h> diff --git a/libcxx/include/__filesystem/operations.h b/libcxx/include/__filesystem/operations.h --- a/libcxx/include/__filesystem/operations.h +++ b/libcxx/include/__filesystem/operations.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_OPERATIONS_H #define _LIBCPP___FILESYSTEM_OPERATIONS_H -#include <__availability> #include <__chrono/time_point.h> #include <__config> #include <__filesystem/copy_options.h> diff --git a/libcxx/include/__filesystem/path.h b/libcxx/include/__filesystem/path.h --- a/libcxx/include/__filesystem/path.h +++ b/libcxx/include/__filesystem/path.h @@ -12,7 +12,6 @@ #include <__algorithm/replace.h> #include <__algorithm/replace_copy.h> -#include <__availability> #include <__config> #include <__functional/unary_function.h> #include <__fwd/hash.h> diff --git a/libcxx/include/__filesystem/path_iterator.h b/libcxx/include/__filesystem/path_iterator.h --- a/libcxx/include/__filesystem/path_iterator.h +++ b/libcxx/include/__filesystem/path_iterator.h @@ -11,7 +11,6 @@ #define _LIBCPP___FILESYSTEM_PATH_ITERATOR_H #include <__assert> -#include <__availability> #include <__config> #include <__filesystem/path.h> #include <__iterator/iterator_traits.h> diff --git a/libcxx/include/__filesystem/perm_options.h b/libcxx/include/__filesystem/perm_options.h --- a/libcxx/include/__filesystem/perm_options.h +++ b/libcxx/include/__filesystem/perm_options.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_PERM_OPTIONS_H #define _LIBCPP___FILESYSTEM_PERM_OPTIONS_H -#include <__availability> #include <__config> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) diff --git a/libcxx/include/__filesystem/perms.h b/libcxx/include/__filesystem/perms.h --- a/libcxx/include/__filesystem/perms.h +++ b/libcxx/include/__filesystem/perms.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_PERMS_H #define _LIBCPP___FILESYSTEM_PERMS_H -#include <__availability> #include <__config> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) diff --git a/libcxx/include/__filesystem/recursive_directory_iterator.h b/libcxx/include/__filesystem/recursive_directory_iterator.h --- a/libcxx/include/__filesystem/recursive_directory_iterator.h +++ b/libcxx/include/__filesystem/recursive_directory_iterator.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_RECURSIVE_DIRECTORY_ITERATOR_H #define _LIBCPP___FILESYSTEM_RECURSIVE_DIRECTORY_ITERATOR_H -#include <__availability> #include <__config> #include <__filesystem/directory_entry.h> #include <__filesystem/directory_options.h> diff --git a/libcxx/include/__filesystem/space_info.h b/libcxx/include/__filesystem/space_info.h --- a/libcxx/include/__filesystem/space_info.h +++ b/libcxx/include/__filesystem/space_info.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FILESYSTEM_SPACE_INFO_H #define _LIBCPP___FILESYSTEM_SPACE_INFO_H -#include <__availability> #include <__config> #include diff --git a/libcxx/include/__filesystem/u8path.h b/libcxx/include/__filesystem/u8path.h --- a/libcxx/include/__filesystem/u8path.h +++ b/libcxx/include/__filesystem/u8path.h @@ -11,7 +11,6 @@ #define _LIBCPP___FILESYSTEM_U8PATH_H #include <__algorithm/unwrap_iter.h> -#include <__availability> #include <__config> #include <__filesystem/path.h> #include diff --git a/libcxx/include/__format/container_adaptor.h b/libcxx/include/__format/container_adaptor.h --- a/libcxx/include/__format/container_adaptor.h +++ b/libcxx/include/__format/container_adaptor.h @@ -14,7 +14,6 @@ # pragma GCC system_header #endif -#include <__availability> #include <__config> #include <__format/concepts.h> #include <__format/formatter.h> diff --git a/libcxx/include/__format/format_args.h b/libcxx/include/__format/format_args.h --- a/libcxx/include/__format/format_args.h +++ b/libcxx/include/__format/format_args.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FORMAT_FORMAT_ARGS_H #define _LIBCPP___FORMAT_FORMAT_ARGS_H -#include <__availability> #include <__config> #include <__format/format_arg.h> #include <__format/format_arg_store.h> diff --git a/libcxx/include/__format/format_context.h b/libcxx/include/__format/format_context.h --- a/libcxx/include/__format/format_context.h +++ b/libcxx/include/__format/format_context.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FORMAT_FORMAT_CONTEXT_H #define _LIBCPP___FORMAT_FORMAT_CONTEXT_H -#include <__availability> #include <__concepts/same_as.h> #include <__config> #include <__format/buffer.h> diff --git a/libcxx/include/__format/format_functions.h b/libcxx/include/__format/format_functions.h --- a/libcxx/include/__format/format_functions.h +++ b/libcxx/include/__format/format_functions.h @@ -11,7 +11,6 @@ #define _LIBCPP___FORMAT_FORMAT_FUNCTIONS #include <__algorithm/clamp.h> -#include <__availability> #include <__concepts/convertible_to.h> #include <__concepts/same_as.h> #include <__config> diff --git a/libcxx/include/__format/format_fwd.h b/libcxx/include/__format/format_fwd.h --- a/libcxx/include/__format/format_fwd.h +++ b/libcxx/include/__format/format_fwd.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FORMAT_FORMAT_FWD_H #define _LIBCPP___FORMAT_FORMAT_FWD_H -#include <__availability> #include <__config> #include <__iterator/concepts.h> diff --git a/libcxx/include/__format/formatter.h b/libcxx/include/__format/formatter.h --- a/libcxx/include/__format/formatter.h +++ b/libcxx/include/__format/formatter.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FORMAT_FORMATTER_H #define _LIBCPP___FORMAT_FORMATTER_H -#include <__availability> #include <__config> #include <__format/format_fwd.h> diff --git a/libcxx/include/__format/formatter_bool.h b/libcxx/include/__format/formatter_bool.h --- a/libcxx/include/__format/formatter_bool.h +++ b/libcxx/include/__format/formatter_bool.h @@ -11,7 +11,6 @@ #define _LIBCPP___FORMAT_FORMATTER_BOOL_H #include <__algorithm/copy.h> -#include <__availability> #include <__config> #include <__debug> #include <__format/concepts.h> diff --git a/libcxx/include/__format/formatter_char.h b/libcxx/include/__format/formatter_char.h --- a/libcxx/include/__format/formatter_char.h +++ b/libcxx/include/__format/formatter_char.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FORMAT_FORMATTER_CHAR_H #define _LIBCPP___FORMAT_FORMATTER_CHAR_H -#include <__availability> #include <__concepts/same_as.h> #include <__config> #include <__format/concepts.h> diff --git a/libcxx/include/__format/formatter_integer.h b/libcxx/include/__format/formatter_integer.h --- a/libcxx/include/__format/formatter_integer.h +++ b/libcxx/include/__format/formatter_integer.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FORMAT_FORMATTER_INTEGER_H #define _LIBCPP___FORMAT_FORMATTER_INTEGER_H -#include <__availability> #include <__concepts/arithmetic.h> #include <__config> #include <__format/concepts.h> diff --git a/libcxx/include/__format/formatter_pointer.h b/libcxx/include/__format/formatter_pointer.h --- a/libcxx/include/__format/formatter_pointer.h +++ b/libcxx/include/__format/formatter_pointer.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FORMAT_FORMATTER_POINTER_H #define _LIBCPP___FORMAT_FORMATTER_POINTER_H -#include <__availability> #include <__config> #include <__format/concepts.h> #include <__format/format_parse_context.h> diff --git a/libcxx/include/__format/formatter_string.h b/libcxx/include/__format/formatter_string.h --- a/libcxx/include/__format/formatter_string.h +++ b/libcxx/include/__format/formatter_string.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___FORMAT_FORMATTER_STRING_H #define _LIBCPP___FORMAT_FORMATTER_STRING_H -#include <__availability> #include <__config> #include <__format/concepts.h> #include <__format/format_parse_context.h> diff --git a/libcxx/include/__format/formatter_tuple.h b/libcxx/include/__format/formatter_tuple.h --- a/libcxx/include/__format/formatter_tuple.h +++ b/libcxx/include/__format/formatter_tuple.h @@ -11,7 +11,6 @@ #define _LIBCPP___FORMAT_FORMATTER_TUPLE_H #include <__algorithm/ranges_copy.h> -#include <__availability> #include <__chrono/statically_widen.h> #include <__config> #include <__format/buffer.h> diff --git a/libcxx/include/__format/parser_std_format_spec.h b/libcxx/include/__format/parser_std_format_spec.h --- a/libcxx/include/__format/parser_std_format_spec.h +++ b/libcxx/include/__format/parser_std_format_spec.h @@ -23,7 +23,6 @@ #include <__concepts/arithmetic.h> #include <__concepts/same_as.h> #include <__config> -#include <__debug> #include <__format/format_arg.h> #include <__format/format_error.h> #include <__format/format_parse_context.h> diff --git a/libcxx/include/__format/range_default_formatter.h b/libcxx/include/__format/range_default_formatter.h --- a/libcxx/include/__format/range_default_formatter.h +++ b/libcxx/include/__format/range_default_formatter.h @@ -15,7 +15,6 @@ #endif #include <__algorithm/ranges_copy.h> -#include <__availability> #include <__chrono/statically_widen.h> #include <__concepts/same_as.h> #include <__config> diff --git a/libcxx/include/__format/range_formatter.h b/libcxx/include/__format/range_formatter.h --- a/libcxx/include/__format/range_formatter.h +++ b/libcxx/include/__format/range_formatter.h @@ -15,7 +15,6 @@ #endif #include <__algorithm/ranges_copy.h> -#include <__availability> #include <__chrono/statically_widen.h> #include <__concepts/same_as.h> #include <__config> diff --git a/libcxx/include/__locale b/libcxx/include/__locale --- a/libcxx/include/__locale +++ b/libcxx/include/__locale @@ -10,7 +10,6 @@ #ifndef _LIBCPP___LOCALE #define _LIBCPP___LOCALE -#include <__availability> #include <__config> #include <__type_traits/make_unsigned.h> #include diff --git a/libcxx/include/__memory/shared_ptr.h b/libcxx/include/__memory/shared_ptr.h --- a/libcxx/include/__memory/shared_ptr.h +++ b/libcxx/include/__memory/shared_ptr.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___MEMORY_SHARED_PTR_H #define _LIBCPP___MEMORY_SHARED_PTR_H -#include <__availability> #include <__compare/compare_three_way.h> #include <__compare/ordering.h> #include <__config> diff --git a/libcxx/include/__stop_token/stop_callback.h b/libcxx/include/__stop_token/stop_callback.h --- a/libcxx/include/__stop_token/stop_callback.h +++ b/libcxx/include/__stop_token/stop_callback.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___STOP_TOKEN_STOP_CALLBACK_H #define _LIBCPP___STOP_TOKEN_STOP_CALLBACK_H -#include <__availability> #include <__concepts/constructible.h> #include <__concepts/destructible.h> #include <__concepts/invocable.h> diff --git a/libcxx/include/__stop_token/stop_source.h b/libcxx/include/__stop_token/stop_source.h --- a/libcxx/include/__stop_token/stop_source.h +++ b/libcxx/include/__stop_token/stop_source.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___STOP_TOKEN_STOP_SOURCE_H #define _LIBCPP___STOP_TOKEN_STOP_SOURCE_H -#include <__availability> #include <__config> #include <__stop_token/intrusive_shared_ptr.h> #include <__stop_token/stop_state.h> diff --git a/libcxx/include/__stop_token/stop_state.h b/libcxx/include/__stop_token/stop_state.h --- a/libcxx/include/__stop_token/stop_state.h +++ b/libcxx/include/__stop_token/stop_state.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___STOP_TOKEN_STOP_STATE_H #define _LIBCPP___STOP_TOKEN_STOP_STATE_H -#include <__availability> #include <__config> #include <__stop_token/atomic_unique_lock.h> #include <__stop_token/intrusive_list_view.h> diff --git a/libcxx/include/__stop_token/stop_token.h b/libcxx/include/__stop_token/stop_token.h --- a/libcxx/include/__stop_token/stop_token.h +++ b/libcxx/include/__stop_token/stop_token.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___STOP_TOKEN_STOP_TOKEN_H #define _LIBCPP___STOP_TOKEN_STOP_TOKEN_H -#include <__availability> #include <__config> #include <__stop_token/intrusive_shared_ptr.h> #include <__stop_token/stop_state.h> diff --git a/libcxx/include/__thread/poll_with_backoff.h b/libcxx/include/__thread/poll_with_backoff.h --- a/libcxx/include/__thread/poll_with_backoff.h +++ b/libcxx/include/__thread/poll_with_backoff.h @@ -10,7 +10,6 @@ #ifndef _LIBCPP___THREAD_POLL_WITH_BACKOFF_H #define _LIBCPP___THREAD_POLL_WITH_BACKOFF_H -#include <__availability> #include <__chrono/duration.h> #include <__chrono/high_resolution_clock.h> #include <__config> diff --git a/libcxx/include/__threading_support b/libcxx/include/__threading_support --- a/libcxx/include/__threading_support +++ b/libcxx/include/__threading_support @@ -10,7 +10,6 @@ #ifndef _LIBCPP___THREADING_SUPPORT #define _LIBCPP___THREADING_SUPPORT -#include <__availability> #include <__chrono/convert_to_timespec.h> #include <__chrono/duration.h> #include <__compare/ordering.h> diff --git a/libcxx/include/__verbose_abort b/libcxx/include/__verbose_abort --- a/libcxx/include/__verbose_abort +++ b/libcxx/include/__verbose_abort @@ -10,7 +10,6 @@ #ifndef _LIBCPP___VERBOSE_ABORT #define _LIBCPP___VERBOSE_ABORT -#include <__availability> #include <__config> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) diff --git a/libcxx/include/any b/libcxx/include/any --- a/libcxx/include/any +++ b/libcxx/include/any @@ -81,7 +81,6 @@ */ #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__config> #include <__memory/allocator.h> #include <__memory/allocator_destructor.h> diff --git a/libcxx/include/barrier b/libcxx/include/barrier --- a/libcxx/include/barrier +++ b/libcxx/include/barrier @@ -48,7 +48,6 @@ #include <__assert> // all public C++ headers provide the assertion handler #include <__atomic/atomic_base.h> #include <__atomic/memory_order.h> -#include <__availability> #include <__config> #include <__memory/unique_ptr.h> #include <__thread/poll_with_backoff.h> diff --git a/libcxx/include/fstream b/libcxx/include/fstream --- a/libcxx/include/fstream +++ b/libcxx/include/fstream @@ -181,7 +181,6 @@ #include <__algorithm/max.h> #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__config> #include <__fwd/fstream.h> #include <__locale> diff --git a/libcxx/include/future b/libcxx/include/future --- a/libcxx/include/future +++ b/libcxx/include/future @@ -362,7 +362,6 @@ */ #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__chrono/duration.h> #include <__chrono/time_point.h> #include <__config> diff --git a/libcxx/include/latch b/libcxx/include/latch --- a/libcxx/include/latch +++ b/libcxx/include/latch @@ -44,7 +44,6 @@ #include <__atomic/atomic_base.h> #include <__atomic/atomic_sync.h> #include <__atomic/memory_order.h> -#include <__availability> #include <__config> #include #include diff --git a/libcxx/include/libcxx.imp b/libcxx/include/libcxx.imp --- a/libcxx/include/libcxx.imp +++ b/libcxx/include/libcxx.imp @@ -23,13 +23,11 @@ { include: [ "@<__concepts/.*>", "private", "", "public" ] }, { include: [ "@<__condition_variable/.*>", "private", "", "public" ] }, { include: [ "@<__coroutine/.*>", "private", "", "public" ] }, - { include: [ "@<__debug_utils/.*>", "private", "", "public" ] }, { include: [ "@<__exception/.*>", "private", "", "public" ] }, { include: [ "@<__expected/.*>", "private", "", "public" ] }, { include: [ "@<__filesystem/.*>", "private", "", "public" ] }, { include: [ "@<__format/.*>", "private", "", "public" ] }, { include: [ "@<__functional/.*>", "private", "", "public" ] }, - { include: [ "@<__fwd/.*>", "private", "", "public" ] }, { include: [ "@<__ios/.*>", "private", "", "public" ] }, { include: [ "@<__iterator/.*>", "private", "", "public" ] }, { include: [ "@<__locale_dir/.*>", "private", "", "public" ] }, @@ -38,12 +36,10 @@ { include: [ "@<__memory_resource/.*>", "private", "", "public" ] }, { include: [ "@<__mutex/.*>", "private", "", "public" ] }, { include: [ "@<__numeric/.*>", "private", "", "public" ] }, - { include: [ "@<__pstl/.*>", "private", "", "public" ] }, { include: [ "@<__random/.*>", "private", "", "public" ] }, { include: [ "@<__ranges/.*>", "private", "", "public" ] }, { include: [ "@<__stop_token/.*>", "private", "", "public" ] }, { include: [ "@<__string/.*>", "private", "", "public" ] }, - { include: [ "@<__support/.*>", "private", "", "public" ] }, { include: [ "@<__system_error/.*>", "private", "", "public" ] }, { include: [ "@<__thread/.*>", "private", "", "public" ] }, { include: [ "@<__tuple/.*>", "private", "", "public" ] }, diff --git a/libcxx/include/module.modulemap.in b/libcxx/include/module.modulemap.in --- a/libcxx/include/module.modulemap.in +++ b/libcxx/include/module.modulemap.in @@ -1791,11 +1791,10 @@ } // FIXME: These should be private. - module __assert { header "__assert" export * } - module __availability { private header "__availability" export * } - module __bit_reference { private header "__bit_reference" export * } - module __debug { header "__debug" export * } - module __hash_table { header "__hash_table" export * } + module __assert { header "__assert" export * } + module __bit_reference { private header "__bit_reference" export * } + module __debug { header "__debug" export * } + module __hash_table { header "__hash_table" export * } module __locale { @requires_LIBCXX_ENABLE_LOCALIZATION@ private header "__locale" export * diff --git a/libcxx/include/new b/libcxx/include/new --- a/libcxx/include/new +++ b/libcxx/include/new @@ -87,7 +87,6 @@ */ #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__config> #include <__exception/exception.h> #include <__type_traits/alignment_of.h> diff --git a/libcxx/include/optional b/libcxx/include/optional --- a/libcxx/include/optional +++ b/libcxx/include/optional @@ -178,7 +178,6 @@ */ #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__compare/compare_three_way_result.h> #include <__compare/three_way_comparable.h> #include <__concepts/invocable.h> diff --git a/libcxx/include/semaphore b/libcxx/include/semaphore --- a/libcxx/include/semaphore +++ b/libcxx/include/semaphore @@ -49,7 +49,6 @@ #include <__atomic/atomic_base.h> #include <__atomic/atomic_sync.h> #include <__atomic/memory_order.h> -#include <__availability> #include <__chrono/time_point.h> #include <__config> #include <__thread/timed_backoff_policy.h> diff --git a/libcxx/include/shared_mutex b/libcxx/include/shared_mutex --- a/libcxx/include/shared_mutex +++ b/libcxx/include/shared_mutex @@ -123,7 +123,6 @@ */ #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__chrono/duration.h> #include <__chrono/steady_clock.h> #include <__chrono/time_point.h> diff --git a/libcxx/include/thread b/libcxx/include/thread --- a/libcxx/include/thread +++ b/libcxx/include/thread @@ -87,7 +87,6 @@ */ #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__chrono/steady_clock.h> #include <__chrono/time_point.h> #include <__concepts/arithmetic.h> diff --git a/libcxx/include/typeinfo b/libcxx/include/typeinfo --- a/libcxx/include/typeinfo +++ b/libcxx/include/typeinfo @@ -57,7 +57,6 @@ */ #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__config> #include <__exception/exception.h> #include <__type_traits/is_constant_evaluated.h> diff --git a/libcxx/include/variant b/libcxx/include/variant --- a/libcxx/include/variant +++ b/libcxx/include/variant @@ -205,7 +205,6 @@ */ #include <__assert> // all public C++ headers provide the assertion handler -#include <__availability> #include <__compare/common_comparison_category.h> #include <__compare/compare_three_way_result.h> #include <__compare/three_way_comparable.h> diff --git a/libcxx/src/debug.cpp b/libcxx/src/debug.cpp --- a/libcxx/src/debug.cpp +++ b/libcxx/src/debug.cpp @@ -8,7 +8,7 @@ #include <__assert> #include <__config> -#include <__debug> +#include <__config_dir/debug.h> #include <__hash_table> #include #include diff --git a/libcxx/src/optional.cpp b/libcxx/src/optional.cpp --- a/libcxx/src/optional.cpp +++ b/libcxx/src/optional.cpp @@ -6,7 +6,7 @@ // //===----------------------------------------------------------------------===// -#include <__availability> +#include <__config> #include namespace std diff --git a/libcxx/test/support/container_debug_tests.h b/libcxx/test/support/container_debug_tests.h --- a/libcxx/test/support/container_debug_tests.h +++ b/libcxx/test/support/container_debug_tests.h @@ -18,7 +18,7 @@ #error The library must be built with the debug mode enabled in order to use this header #endif -#include <__debug> +#include <__config_dir/debug.h> #include #include #include diff --git a/libcxx/utils/data/ignore_format.txt b/libcxx/utils/data/ignore_format.txt --- a/libcxx/utils/data/ignore_format.txt +++ b/libcxx/utils/data/ignore_format.txt @@ -223,7 +223,6 @@ libcxx/include/__atomic/fence.h libcxx/include/__atomic/kill_dependency.h libcxx/include/__atomic/memory_order.h -libcxx/include/__availability libcxx/include/barrier libcxx/include/__bit/bit_cast.h libcxx/include/__bit/bit_ceil.h @@ -295,6 +294,9 @@ libcxx/include/__concepts/totally_ordered.h libcxx/include/condition_variable libcxx/include/__config +libcxx/include/__config_dir/availability.h +libcxx/include/__config_dir/base.h +libcxx/include/__config_dir/debug.h libcxx/include/__coroutine/coroutine_handle.h libcxx/include/__coroutine/coroutine_traits.h libcxx/include/__coroutine/noop_coroutine_handle.h @@ -302,7 +304,6 @@ libcxx/include/cstddef libcxx/include/ctype.h libcxx/include/cuchar -libcxx/include/__debug libcxx/include/__debug_utils/randomize_range.h libcxx/include/deque libcxx/include/errno.h diff --git a/libcxx/utils/generate_feature_test_macro_components.py b/libcxx/utils/generate_feature_test_macro_components.py --- a/libcxx/utils/generate_feature_test_macro_components.py +++ b/libcxx/utils/generate_feature_test_macro_components.py @@ -61,7 +61,8 @@ # just libc++. It may depend on # * macros defined by the compiler itself, or # * macros generated by CMake. -# In some cases we add also depend on macros defined in <__availability>. +# In some cases we add also depend on macros defined in +# <__config_dir/availability.h>. # libcxx_guard An optional string field. When this field is provided, # `test_suite_guard` must also be provided. This field is used # only to guard the feature-test macro in . It may diff --git a/libcxx/utils/generate_iwyu_mapping.py b/libcxx/utils/generate_iwyu_mapping.py old mode 100644 new mode 100755 --- a/libcxx/utils/generate_iwyu_mapping.py +++ b/libcxx/utils/generate_iwyu_mapping.py @@ -35,7 +35,11 @@ result = [] temporary_mappings = {"__locale_dir": "locale"} + internal_directories = ['__config_dir', '__debug_utils', '__fwd', '__pstl', '__support'] for i in detail_directories: + if i in internal_directories: + continue + public_header = temporary_mappings.get(i, i.lstrip("_")) result.append(f'{generate(f"@<{i}/.*>", public_header)},') @@ -43,8 +47,6 @@ public = [] if i == "__assert": continue - elif i == "__availability": - continue elif i == "__bit_reference": continue elif i == "__bits":