diff options
Diffstat (limited to 'third_party/abseil-cpp/absl/base/config.h')
| -rw-r--r-- | third_party/abseil-cpp/absl/base/config.h | 199 |
1 files changed, 150 insertions, 49 deletions
diff --git a/third_party/abseil-cpp/absl/base/config.h b/third_party/abseil-cpp/absl/base/config.h index ee99f94629..585485c359 100644 --- a/third_party/abseil-cpp/absl/base/config.h +++ b/third_party/abseil-cpp/absl/base/config.h @@ -66,6 +66,35 @@ #include "absl/base/options.h" #include "absl/base/policy_checks.h" +// Abseil long-term support (LTS) releases will define +// `ABSL_LTS_RELEASE_VERSION` to the integer representing the date string of the +// LTS release version, and will define `ABSL_LTS_RELEASE_PATCH_LEVEL` to the +// integer representing the patch-level for that release. +// +// For example, for LTS release version "20300401.2", this would give us +// ABSL_LTS_RELEASE_VERSION == 20300401 && ABSL_LTS_RELEASE_PATCH_LEVEL == 2 +// +// These symbols will not be defined in non-LTS code. +// +// Abseil recommends that clients live-at-head. Therefore, if you are using +// these symbols to assert a minimum version requirement, we recommend you do it +// as +// +// #if defined(ABSL_LTS_RELEASE_VERSION) && ABSL_LTS_RELEASE_VERSION < 20300401 +// #error Project foo requires Abseil LTS version >= 20300401 +// #endif +// +// The `defined(ABSL_LTS_RELEASE_VERSION)` part of the check excludes +// live-at-head clients from the minimum version assertion. +// +// See https://abseil.io/about/releases for more information on Abseil release +// management. +// +// LTS releases can be obtained from +// https://github.com/abseil/abseil-cpp/releases. +#define ABSL_LTS_RELEASE_VERSION 20211102 +#define ABSL_LTS_RELEASE_PATCH_LEVEL 0 + // Helper macro to convert a CPP variable to a string literal. #define ABSL_INTERNAL_DO_TOKEN_STR(x) #x #define ABSL_INTERNAL_TOKEN_STR(x) ABSL_INTERNAL_DO_TOKEN_STR(x) @@ -121,10 +150,16 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #if ABSL_OPTION_USE_INLINE_NAMESPACE == 0 #define ABSL_NAMESPACE_BEGIN #define ABSL_NAMESPACE_END +#define ABSL_INTERNAL_C_SYMBOL(x) x #elif ABSL_OPTION_USE_INLINE_NAMESPACE == 1 #define ABSL_NAMESPACE_BEGIN \ inline namespace ABSL_OPTION_INLINE_NAMESPACE_NAME { #define ABSL_NAMESPACE_END } +#define ABSL_INTERNAL_C_SYMBOL_HELPER_2(x, v) x##_##v +#define ABSL_INTERNAL_C_SYMBOL_HELPER_1(x, v) \ + ABSL_INTERNAL_C_SYMBOL_HELPER_2(x, v) +#define ABSL_INTERNAL_C_SYMBOL(x) \ + ABSL_INTERNAL_C_SYMBOL_HELPER_1(x, ABSL_OPTION_INLINE_NAMESPACE_NAME) #else #error options.h is misconfigured. #endif @@ -154,6 +189,28 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #define ABSL_INTERNAL_HAS_KEYWORD(x) 0 #endif +#ifdef __has_feature +#define ABSL_HAVE_FEATURE(f) __has_feature(f) +#else +#define ABSL_HAVE_FEATURE(f) 0 +#endif + +// Portable check for GCC minimum version: +// https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html +#if defined(__GNUC__) && defined(__GNUC_MINOR__) +#define ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(x, y) \ + (__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y)) +#else +#define ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(x, y) 0 +#endif + +#if defined(__clang__) && defined(__clang_major__) && defined(__clang_minor__) +#define ABSL_INTERNAL_HAVE_MIN_CLANG_VERSION(x, y) \ + (__clang_major__ > (x) || __clang_major__ == (x) && __clang_minor__ >= (y)) +#else +#define ABSL_INTERNAL_HAVE_MIN_CLANG_VERSION(x, y) 0 +#endif + // ABSL_HAVE_TLS is defined to 1 when __thread should be supported. // We assume __thread is supported on Linux when compiled with Clang or compiled // against libstdc++ with _GLIBCXX_HAVE_TLS defined. @@ -171,10 +228,9 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || // gcc >= 4.8.1 using libstdc++, and Visual Studio. #ifdef ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE #error ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE cannot be directly set -#elif defined(_LIBCPP_VERSION) || \ - (!defined(__clang__) && defined(__GNUC__) && defined(__GLIBCXX__) && \ - (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))) || \ - defined(_MSC_VER) +#elif defined(_LIBCPP_VERSION) || defined(_MSC_VER) || \ + (!defined(__clang__) && defined(__GLIBCXX__) && \ + ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(4, 8)) #define ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE 1 #endif @@ -187,16 +243,17 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || // // Checks whether `std::is_trivially_copy_assignable<T>` is supported. -// Notes: Clang with libc++ supports these features, as does gcc >= 5.1 with -// either libc++ or libstdc++, and Visual Studio (but not NVCC). +// Notes: Clang with libc++ supports these features, as does gcc >= 7.4 with +// libstdc++, or gcc >= 8.2 with libc++, and Visual Studio (but not NVCC). #if defined(ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE) #error ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE cannot be directly set #elif defined(ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE) #error ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE cannot directly set -#elif (defined(__clang__) && defined(_LIBCPP_VERSION)) || \ - (!defined(__clang__) && defined(__GNUC__) && \ - (__GNUC__ > 7 || (__GNUC__ == 7 && __GNUC_MINOR__ >= 4)) && \ - (defined(_LIBCPP_VERSION) || defined(__GLIBCXX__))) || \ +#elif (defined(__clang__) && defined(_LIBCPP_VERSION)) || \ + (!defined(__clang__) && \ + ((ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(7, 4) && defined(__GLIBCXX__)) || \ + (ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(8, 2) && \ + defined(_LIBCPP_VERSION)))) || \ (defined(_MSC_VER) && !defined(__NVCC__)) #define ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE 1 #define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1 @@ -210,6 +267,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #if ABSL_INTERNAL_HAS_KEYWORD(__builtin_LINE) && \ ABSL_INTERNAL_HAS_KEYWORD(__builtin_FILE) #define ABSL_HAVE_SOURCE_LOCATION_CURRENT 1 +#elif ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(5, 0) +#define ABSL_HAVE_SOURCE_LOCATION_CURRENT 1 #endif #endif @@ -226,11 +285,9 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || // * Xcode 9.3 started disallowing `thread_local` for 32-bit iOS simulator // targeting iOS 9.x. // * Xcode 10 moves the deployment target check for iOS < 9.0 to link time -// making __has_feature unreliable there. +// making ABSL_HAVE_FEATURE unreliable there. // -// Otherwise, `__has_feature` is only supported by Clang so it has be inside -// `defined(__APPLE__)` check. -#if __has_feature(cxx_thread_local) && \ +#if ABSL_HAVE_FEATURE(cxx_thread_local) && \ !(TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0) #define ABSL_HAVE_THREAD_LOCAL 1 #endif @@ -262,13 +319,6 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #endif #endif // defined(__ANDROID__) && defined(__clang__) -// Emscripten doesn't yet support `thread_local` or `__thread`. -// https://github.com/emscripten-core/emscripten/issues/3502 -#if defined(__EMSCRIPTEN__) -#undef ABSL_HAVE_TLS -#undef ABSL_HAVE_THREAD_LOCAL -#endif // defined(__EMSCRIPTEN__) - // ABSL_HAVE_INTRINSIC_INT128 // // Checks whether the __int128 compiler extension for a 128-bit integral type is @@ -314,25 +364,21 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || // For further details, consult the compiler's documentation. #ifdef ABSL_HAVE_EXCEPTIONS #error ABSL_HAVE_EXCEPTIONS cannot be directly set. - -#elif defined(__clang__) - -#if __clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 6) +#elif ABSL_INTERNAL_HAVE_MIN_CLANG_VERSION(3, 6) // Clang >= 3.6 -#if __has_feature(cxx_exceptions) +#if ABSL_HAVE_FEATURE(cxx_exceptions) #define ABSL_HAVE_EXCEPTIONS 1 -#endif // __has_feature(cxx_exceptions) -#else +#endif // ABSL_HAVE_FEATURE(cxx_exceptions) +#elif defined(__clang__) // Clang < 3.6 // http://releases.llvm.org/3.6.0/tools/clang/docs/ReleaseNotes.html#the-exceptions-macro -#if defined(__EXCEPTIONS) && __has_feature(cxx_exceptions) +#if defined(__EXCEPTIONS) && ABSL_HAVE_FEATURE(cxx_exceptions) #define ABSL_HAVE_EXCEPTIONS 1 -#endif // defined(__EXCEPTIONS) && __has_feature(cxx_exceptions) -#endif // __clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 6) - +#endif // defined(__EXCEPTIONS) && ABSL_HAVE_FEATURE(cxx_exceptions) // Handle remaining special cases and default to exceptions being supported. -#elif !(defined(__GNUC__) && (__GNUC__ < 5) && !defined(__EXCEPTIONS)) && \ - !(defined(__GNUC__) && (__GNUC__ >= 5) && !defined(__cpp_exceptions)) && \ +#elif !(defined(__GNUC__) && (__GNUC__ < 5) && !defined(__EXCEPTIONS)) && \ + !(ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(5, 0) && \ + !defined(__cpp_exceptions)) && \ !(defined(_MSC_VER) && !defined(_CPPUNWIND)) #define ABSL_HAVE_EXCEPTIONS 1 #endif @@ -364,10 +410,11 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || // POSIX.1-2001. #ifdef ABSL_HAVE_MMAP #error ABSL_HAVE_MMAP cannot be directly set -#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \ - defined(__ros__) || defined(__native_client__) || defined(__asmjs__) || \ - defined(__wasm__) || defined(__Fuchsia__) || defined(__sun) || \ - defined(__ASYLO__) +#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \ + defined(_AIX) || defined(__ros__) || defined(__native_client__) || \ + defined(__asmjs__) || defined(__wasm__) || defined(__Fuchsia__) || \ + defined(__sun) || defined(__ASYLO__) || defined(__myriad2__) || \ + defined(__HAIKU__) #define ABSL_HAVE_MMAP 1 #endif @@ -378,10 +425,19 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #ifdef ABSL_HAVE_PTHREAD_GETSCHEDPARAM #error ABSL_HAVE_PTHREAD_GETSCHEDPARAM cannot be directly set #elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \ - defined(__ros__) + defined(_AIX) || defined(__ros__) #define ABSL_HAVE_PTHREAD_GETSCHEDPARAM 1 #endif +// ABSL_HAVE_SCHED_GETCPU +// +// Checks whether sched_getcpu is available. +#ifdef ABSL_HAVE_SCHED_GETCPU +#error ABSL_HAVE_SCHED_GETCPU cannot be directly set +#elif defined(__linux__) +#define ABSL_HAVE_SCHED_GETCPU 1 +#endif + // ABSL_HAVE_SCHED_YIELD // // Checks whether the platform implements sched_yield(2) as defined in @@ -477,9 +533,9 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 120000) || \ (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 120000) || \ + __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 50000) || \ (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 50000)) + __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 120000)) #define ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE 1 #else #define ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE 0 @@ -493,7 +549,7 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #endif #ifdef __has_include -#if __has_include(<any>) && __cplusplus >= 201703L && \ +#if __has_include(<any>) && defined(__cplusplus) && __cplusplus >= 201703L && \ !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE #define ABSL_HAVE_STD_ANY 1 #endif @@ -507,8 +563,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #endif #ifdef __has_include -#if __has_include(<optional>) && __cplusplus >= 201703L && \ - !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE +#if __has_include(<optional>) && defined(__cplusplus) && \ + __cplusplus >= 201703L && !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE #define ABSL_HAVE_STD_OPTIONAL 1 #endif #endif @@ -521,8 +577,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #endif #ifdef __has_include -#if __has_include(<variant>) && __cplusplus >= 201703L && \ - !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE +#if __has_include(<variant>) && defined(__cplusplus) && \ + __cplusplus >= 201703L && !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE #define ABSL_HAVE_STD_VARIANT 1 #endif #endif @@ -535,7 +591,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #endif #ifdef __has_include -#if __has_include(<string_view>) && __cplusplus >= 201703L +#if __has_include(<string_view>) && defined(__cplusplus) && \ + __cplusplus >= 201703L #define ABSL_HAVE_STD_STRING_VIEW 1 #endif #endif @@ -547,8 +604,9 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || // not correctly set by MSVC, so we use `_MSVC_LANG` to check the language // version. // TODO(zhangxy): fix tests before enabling aliasing for `std::any`. -#if defined(_MSC_VER) && _MSC_VER >= 1910 && \ - ((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || __cplusplus > 201402) +#if defined(_MSC_VER) && _MSC_VER >= 1910 && \ + ((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || \ + (defined(__cplusplus) && __cplusplus > 201402)) // #define ABSL_HAVE_STD_ANY 1 #define ABSL_HAVE_STD_OPTIONAL 1 #define ABSL_HAVE_STD_VARIANT 1 @@ -668,4 +726,47 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #define ABSL_DLL #endif // defined(_MSC_VER) +// ABSL_HAVE_MEMORY_SANITIZER +// +// MemorySanitizer (MSan) is a detector of uninitialized reads. It consists of +// a compiler instrumentation module and a run-time library. +#ifdef ABSL_HAVE_MEMORY_SANITIZER +#error "ABSL_HAVE_MEMORY_SANITIZER cannot be directly set." +#elif defined(__SANITIZE_MEMORY__) +#define ABSL_HAVE_MEMORY_SANITIZER 1 +#elif !defined(__native_client__) && ABSL_HAVE_FEATURE(memory_sanitizer) +#define ABSL_HAVE_MEMORY_SANITIZER 1 +#endif + +// ABSL_HAVE_THREAD_SANITIZER +// +// ThreadSanitizer (TSan) is a fast data race detector. +#ifdef ABSL_HAVE_THREAD_SANITIZER +#error "ABSL_HAVE_THREAD_SANITIZER cannot be directly set." +#elif defined(__SANITIZE_THREAD__) +#define ABSL_HAVE_THREAD_SANITIZER 1 +#elif ABSL_HAVE_FEATURE(thread_sanitizer) +#define ABSL_HAVE_THREAD_SANITIZER 1 +#endif + +// ABSL_HAVE_ADDRESS_SANITIZER +// +// AddressSanitizer (ASan) is a fast memory error detector. +#ifdef ABSL_HAVE_ADDRESS_SANITIZER +#error "ABSL_HAVE_ADDRESS_SANITIZER cannot be directly set." +#elif defined(__SANITIZE_ADDRESS__) +#define ABSL_HAVE_ADDRESS_SANITIZER 1 +#elif ABSL_HAVE_FEATURE(address_sanitizer) +#define ABSL_HAVE_ADDRESS_SANITIZER 1 +#endif + +// ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION +// +// Class template argument deduction is a language feature added in C++17. +#ifdef ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION +#error "ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION cannot be directly set." +#elif defined(__cpp_deduction_guides) +#define ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION 1 +#endif + #endif // ABSL_BASE_CONFIG_H_ |