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author | Maxim Yurchuk <maxim-yurchuk@ydb.tech> | 2024-11-20 17:37:57 +0000 |
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committer | GitHub <noreply@github.com> | 2024-11-20 17:37:57 +0000 |
commit | f76323e9b295c15751e51e3443aa47a36bee8023 (patch) | |
tree | 4113c8cad473a33e0f746966e0cf087252fa1d7a /contrib/libs/cxxsupp/libcxx/src | |
parent | 753ecb8d410a4cb459c26f3a0082fb2d1724fe63 (diff) | |
parent | a7b9a6afea2a9d7a7bfac4c5eb4c1a8e60adb9e6 (diff) | |
download | ydb-f76323e9b295c15751e51e3443aa47a36bee8023.tar.gz |
Merge pull request #11788 from ydb-platform/mergelibs-241120-1113
Library import 241120-1113
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/src')
-rw-r--r-- | contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp | 2 | ||||
-rw-r--r-- | contrib/libs/cxxsupp/libcxx/src/new.cpp | 363 |
2 files changed, 141 insertions, 224 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp b/contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp index 01fe199acb..070f989194 100644 --- a/contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp +++ b/contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp @@ -31,7 +31,7 @@ template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_ostream<wchar_t>; #endif // Additional instantiations added later. Whether programs rely on these being -// available is protected by _LIBCPP_ABI_ENABLE_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1. +// available is protected by _LIBCPP_AVAILABILITY_HAS_NO_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1. template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_stringbuf<char>; template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_stringstream<char>; template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_ostringstream<char>; diff --git a/contrib/libs/cxxsupp/libcxx/src/new.cpp b/contrib/libs/cxxsupp/libcxx/src/new.cpp index 6d5b221198..318b062bb0 100644 --- a/contrib/libs/cxxsupp/libcxx/src/new.cpp +++ b/contrib/libs/cxxsupp/libcxx/src/new.cpp @@ -20,248 +20,165 @@ // in this shared library, so that they can be overridden by programs // that define non-weak copies of the functions. -_LIBCPP_WEAK -void * -operator new(std::size_t size) _THROW_BAD_ALLOC -{ - if (size == 0) - size = 1; - void* p; - while ((p = std::malloc(size)) == nullptr) - { - // If malloc fails and there is a new_handler, - // call it to try free up memory. - std::new_handler nh = std::get_new_handler(); - if (nh) - nh(); - else -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - throw std::bad_alloc(); -#else -#ifdef __EMSCRIPTEN__ - // Abort here so that when exceptions are disabled, we do not just - // return 0 when malloc returns 0. - // We could also do this with set_new_handler, but that adds a - // global constructor and a table entry, overhead that we can avoid - // by doing it this way. - abort(); -#else - break; -#endif -#endif - } - return p; +static void* operator_new_impl(std::size_t size) noexcept { + if (size == 0) + size = 1; + void* p; + while ((p = std::malloc(size)) == nullptr) { + // If malloc fails and there is a new_handler, + // call it to try free up memory. + std::new_handler nh = std::get_new_handler(); + if (nh) + nh(); + else + break; + } + return p; +} + +_LIBCPP_WEAK void* operator new(std::size_t size) _THROW_BAD_ALLOC { + void* p = operator_new_impl(size); +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + if (p == nullptr) + throw std::bad_alloc(); +# else +# ifdef __EMSCRIPTEN__ + if (p == nullptr) + // Abort here so that when exceptions are disabled, we do not just + // return 0 when malloc returns 0. + // We could also do this with set_new_handler, but that adds a + // global constructor and a table entry, overhead that we can avoid + // by doing it this way. + abort(); +# endif +# endif + return p; +} + +_LIBCPP_WEAK void* operator new(size_t size, const std::nothrow_t&) noexcept { + void* p = nullptr; +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + try { +# endif // _LIBCPP_HAS_NO_EXCEPTIONS + p = ::operator new(size); +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + } catch (...) { + } +# endif // _LIBCPP_HAS_NO_EXCEPTIONS + return p; +} + +_LIBCPP_WEAK void* operator new[](size_t size) _THROW_BAD_ALLOC { return ::operator new(size); } + +_LIBCPP_WEAK void* operator new[](size_t size, const std::nothrow_t&) noexcept { + void* p = nullptr; +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + try { +# endif // _LIBCPP_HAS_NO_EXCEPTIONS + p = ::operator new[](size); +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + } catch (...) { + } +# endif // _LIBCPP_HAS_NO_EXCEPTIONS + return p; +} + +_LIBCPP_WEAK void operator delete(void* ptr) noexcept { std::free(ptr); } + +_LIBCPP_WEAK void operator delete(void* ptr, const std::nothrow_t&) noexcept { ::operator delete(ptr); } + +_LIBCPP_WEAK void operator delete(void* ptr, size_t) noexcept { ::operator delete(ptr); } + +_LIBCPP_WEAK void operator delete[](void* ptr) noexcept { ::operator delete(ptr); } + +_LIBCPP_WEAK void operator delete[](void* ptr, const std::nothrow_t&) noexcept { ::operator delete[](ptr); } + +_LIBCPP_WEAK void operator delete[](void* ptr, size_t) noexcept { ::operator delete[](ptr); } + +# if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) + +static void* operator_new_aligned_impl(std::size_t size, std::align_val_t alignment) noexcept { + if (size == 0) + size = 1; + if (static_cast<size_t>(alignment) < sizeof(void*)) + alignment = std::align_val_t(sizeof(void*)); + + // Try allocating memory. If allocation fails and there is a new_handler, + // call it to try free up memory, and try again until it succeeds, or until + // the new_handler decides to terminate. + void* p; + while ((p = std::__libcpp_aligned_alloc(static_cast<std::size_t>(alignment), size)) == nullptr) { + std::new_handler nh = std::get_new_handler(); + if (nh) + nh(); + else + break; + } + return p; +} + +_LIBCPP_WEAK void* operator new(std::size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC { + void* p = operator_new_aligned_impl(size, alignment); +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + if (p == nullptr) + throw std::bad_alloc(); +# endif + return p; } -_LIBCPP_WEAK -void* -operator new(size_t size, const std::nothrow_t&) noexcept -{ - void* p = nullptr; -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - try - { -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - p = ::operator new(size); -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - } - catch (...) - { - } -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - return p; +_LIBCPP_WEAK void* operator new(size_t size, std::align_val_t alignment, const std::nothrow_t&) noexcept { + void* p = nullptr; +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + try { +# endif // _LIBCPP_HAS_NO_EXCEPTIONS + p = ::operator new(size, alignment); +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + } catch (...) { + } +# endif // _LIBCPP_HAS_NO_EXCEPTIONS + return p; } -_LIBCPP_WEAK -void* -operator new[](size_t size) _THROW_BAD_ALLOC -{ - return ::operator new(size); +_LIBCPP_WEAK void* operator new[](size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC { + return ::operator new(size, alignment); } -_LIBCPP_WEAK -void* -operator new[](size_t size, const std::nothrow_t&) noexcept -{ - void* p = nullptr; -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - try - { -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - p = ::operator new[](size); -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - } - catch (...) - { - } -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - return p; +_LIBCPP_WEAK void* operator new[](size_t size, std::align_val_t alignment, const std::nothrow_t&) noexcept { + void* p = nullptr; +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + try { +# endif // _LIBCPP_HAS_NO_EXCEPTIONS + p = ::operator new[](size, alignment); +# ifndef _LIBCPP_HAS_NO_EXCEPTIONS + } catch (...) { + } +# endif // _LIBCPP_HAS_NO_EXCEPTIONS + return p; } -_LIBCPP_WEAK -void -operator delete(void* ptr) noexcept -{ - std::free(ptr); -} - -_LIBCPP_WEAK -void -operator delete(void* ptr, const std::nothrow_t&) noexcept -{ - ::operator delete(ptr); -} - -_LIBCPP_WEAK -void -operator delete(void* ptr, size_t) noexcept -{ - ::operator delete(ptr); -} - -_LIBCPP_WEAK -void -operator delete[] (void* ptr) noexcept -{ - ::operator delete(ptr); -} - -_LIBCPP_WEAK -void -operator delete[] (void* ptr, const std::nothrow_t&) noexcept -{ - ::operator delete[](ptr); -} - -_LIBCPP_WEAK -void -operator delete[] (void* ptr, size_t) noexcept -{ - ::operator delete[](ptr); -} - -#if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) - -_LIBCPP_WEAK -void * -operator new(std::size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC -{ - if (size == 0) - size = 1; - if (static_cast<size_t>(alignment) < sizeof(void*)) - alignment = std::align_val_t(sizeof(void*)); - - // Try allocating memory. If allocation fails and there is a new_handler, - // call it to try free up memory, and try again until it succeeds, or until - // the new_handler decides to terminate. - // - // If allocation fails and there is no new_handler, we throw bad_alloc - // (or return nullptr if exceptions are disabled). - void* p; - while ((p = std::__libcpp_aligned_alloc(static_cast<std::size_t>(alignment), size)) == nullptr) - { - std::new_handler nh = std::get_new_handler(); - if (nh) - nh(); - else { -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - throw std::bad_alloc(); -#else - break; -#endif - } - } - return p; -} - -_LIBCPP_WEAK -void* -operator new(size_t size, std::align_val_t alignment, const std::nothrow_t&) noexcept -{ - void* p = nullptr; -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - try - { -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - p = ::operator new(size, alignment); -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - } - catch (...) - { - } -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - return p; -} - -_LIBCPP_WEAK -void* -operator new[](size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC -{ - return ::operator new(size, alignment); -} - -_LIBCPP_WEAK -void* -operator new[](size_t size, std::align_val_t alignment, const std::nothrow_t&) noexcept -{ - void* p = nullptr; -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - try - { -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - p = ::operator new[](size, alignment); -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - } - catch (...) - { - } -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - return p; -} - -_LIBCPP_WEAK -void -operator delete(void* ptr, std::align_val_t) noexcept -{ - std::__libcpp_aligned_free(ptr); -} +_LIBCPP_WEAK void operator delete(void* ptr, std::align_val_t) noexcept { std::__libcpp_aligned_free(ptr); } -_LIBCPP_WEAK -void -operator delete(void* ptr, std::align_val_t alignment, const std::nothrow_t&) noexcept -{ - ::operator delete(ptr, alignment); +_LIBCPP_WEAK void operator delete(void* ptr, std::align_val_t alignment, const std::nothrow_t&) noexcept { + ::operator delete(ptr, alignment); } -_LIBCPP_WEAK -void -operator delete(void* ptr, size_t, std::align_val_t alignment) noexcept -{ - ::operator delete(ptr, alignment); +_LIBCPP_WEAK void operator delete(void* ptr, size_t, std::align_val_t alignment) noexcept { + ::operator delete(ptr, alignment); } -_LIBCPP_WEAK -void -operator delete[] (void* ptr, std::align_val_t alignment) noexcept -{ - ::operator delete(ptr, alignment); +_LIBCPP_WEAK void operator delete[](void* ptr, std::align_val_t alignment) noexcept { + ::operator delete(ptr, alignment); } -_LIBCPP_WEAK -void -operator delete[] (void* ptr, std::align_val_t alignment, const std::nothrow_t&) noexcept -{ - ::operator delete[](ptr, alignment); +_LIBCPP_WEAK void operator delete[](void* ptr, std::align_val_t alignment, const std::nothrow_t&) noexcept { + ::operator delete[](ptr, alignment); } -_LIBCPP_WEAK -void -operator delete[] (void* ptr, size_t, std::align_val_t alignment) noexcept -{ - ::operator delete[](ptr, alignment); +_LIBCPP_WEAK void operator delete[](void* ptr, size_t, std::align_val_t alignment) noexcept { + ::operator delete[](ptr, alignment); } -#endif // !_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION +# endif // !_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION // ------------------ END COPY ------------------ #endif // !__GLIBCXX__ && !_LIBCPP_ABI_VCRUNTIME |