ABI Changelog ============== This changelog contains information about ABI changes in libc++. Specifically the addition and deletion of symbols from the libc++ dylib. Each entry should start with the revision number followed by a description of the change. The entry should contain a summary of the ABI changes made, including what symbols were added, removed, or changed. To generate a summary, re-generate the new ABI list using the `generate-cxx-abilist` target, and look at the diff. New entries should be added directly below the "Version" header. ------------ Version 18.0 ------------ * [libc++] Simplify the implementation of locale::id This patch removes a symbol defined in the library for std::locale::id::__init(). The symbol '__init' was defined as a private static function as part of the locale::id class and was never visible from outside the dylib. The addition of this symbol to the ABI was most likely accidental. The deletion of the symbol should not be a breaking change. All platforms ------------- Symbol removed: _ZNSt3__16locale2id6__initEv * [libc++] Remove symbol for std::system_error from the dylib This patch removes a symbol defined in the library for std::system_error. The symbol '__init' was defined as a private static function as part of the system_error class and was never visible. The addition of this symbol to the ABI was most likely accidental. The function '__init' is replaced by another equivalent function which is placed in the anonymous namespace of the std::system_error source code file. There are no internal references to this symbol which seems to support the reasoning that this was never used outside of the dylib. The deletion of the symbol should not be a breaking change. All platforms ------------- Symbol removed: _ZNSt3__112system_error6__initERKNS_10error_codeENS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEE ------------ Version 17.0 ------------ * [libc++] Remove symbols for a std::allocator_arg & friends from the dylib This patch removes the symbols defined in the library for std::allocator_arg, std::defer_lock, std::try_to_lock, std::adopt_lock, and std::piecewise_construct. Those were defined in the library because we provided them in C++03 as an extension, and in C++03 it was impossible to define them as `constexpr` variables, as required by the Standard. This is technically an ABI break since we are removing symbols from the library. However, in practice, only programs compiled in C++03 mode that take the address of those objects (or pass them as a reference) will have an undefined ref to those symbols. In practice, this is expected to be rare. First, those are C++11 features that we happen to provide in C++03, and only the C++03 definition can potentially lead to code referencing the dylib definition. So any code that is using these objects but compiling in C++11 mode (as they should) is not at risk. Second, all uses of these types in the library is done by passing those types by value to a function that can get inlined. Since they are empty types, the compiler won't generate an undefined reference if passed by value, since there's nothing to pass anyway. Long story short, the risk for code actually containing an undefined reference to one of these types is rather small (but non-zero). All platforms ------------- Symbol removed: _ZNSt3__110adopt_lockE Symbol removed: _ZNSt3__110defer_lockE Symbol removed: _ZNSt3__111try_to_lockE Symbol removed: _ZNSt3__113allocator_argE Symbol removed: _ZNSt3__119piecewise_constructE * [libc++] Remove explicit instantiations of __insertion_sort_incomplete and __sort5 from the dylib These instantiations were never visible, because they are only used in `__sort`, which is also explicitly instantiated in the dylib. All platforms ------------- Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIaaEEPaEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIccEEPcEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIddEEPdEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIeeEEPeEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIffEEPfEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIhhEEPhEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIiiEEPiEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIjjEEPjEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIllEEPlEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessImmEEPmEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIssEEPsEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIttEEPtEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIwwEEPwEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIxxEEPxEEbT0_S5_T_ Symbol removed: _ZNSt3__127__insertion_sort_incompleteIRNS_6__lessIyyEEPyEEbT0_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIeeEEPeEEjT0_S5_S5_S5_S5_T_ ------------ Version 16.0 ------------ * [libc++][PMR] Move the pmr::memory_resource destructor into the dylib All platforms ------------- Symbol added: _ZNSt3__13pmr15memory_resourceD0Ev Symbol added: _ZNSt3__13pmr15memory_resourceD1Ev Symbol added: _ZNSt3__13pmr15memory_resourceD2Ev Symbol added: _ZTVNSt3__13pmr15memory_resourceE * [libc++] [C++17] Implement . This commit adds to the shared library. All platforms ------------- Symbol added: _ZNKSt3__13pmr26synchronized_pool_resource11do_is_equalERKNS0_15memory_resourceE Symbol added: _ZNKSt3__13pmr28unsynchronized_pool_resource12__pool_indexEmm Symbol added: _ZNKSt3__13pmr28unsynchronized_pool_resource17__pool_block_sizeEi Symbol added: _ZNKSt3__13pmr28unsynchronized_pool_resource22__log2_pool_block_sizeEi Symbol added: _ZNKSt3__13pmr28unsynchronized_pool_resource7optionsEv Symbol added: _ZNSt3__13pmr19new_delete_resourceEv Symbol added: _ZNSt3__13pmr20get_default_resourceEv Symbol added: _ZNSt3__13pmr20null_memory_resourceEv Symbol added: _ZNSt3__13pmr20set_default_resourceEPNS0_15memory_resourceE Symbol added: _ZNSt3__13pmr25monotonic_buffer_resource11do_allocateEmm Symbol added: _ZNSt3__13pmr25monotonic_buffer_resource14__chunk_footer25__try_allocate_from_chunkEmm Symbol added: _ZNSt3__13pmr25monotonic_buffer_resource20__initial_descriptor25__try_allocate_from_chunkEmm Symbol added: _ZNSt3__13pmr28unsynchronized_pool_resource11do_allocateEmm Symbol added: _ZNSt3__13pmr28unsynchronized_pool_resource12__adhoc_pool13__do_allocateEPNS0_15memory_resourceEmm Symbol added: _ZNSt3__13pmr28unsynchronized_pool_resource12__adhoc_pool13__release_ptrEPNS0_15memory_resourceE Symbol added: _ZNSt3__13pmr28unsynchronized_pool_resource12__adhoc_pool15__do_deallocateEPNS0_15memory_resourceEPvmm Symbol added: _ZNSt3__13pmr28unsynchronized_pool_resource13do_deallocateEPvmm Symbol added: _ZNSt3__13pmr28unsynchronized_pool_resource7releaseEv Symbol added: _ZNSt3__13pmr28unsynchronized_pool_resourceC1ERKNS0_12pool_optionsEPNS0_15memory_resourceE Symbol added: _ZNSt3__13pmr28unsynchronized_pool_resourceC2ERKNS0_12pool_optionsEPNS0_15memory_resourceE Symbol added: _ZTINSt3__13pmr15memory_resourceE Symbol added: _ZTINSt3__13pmr25monotonic_buffer_resourceE Symbol added: _ZTINSt3__13pmr26__null_memory_resource_impE Symbol added: _ZTINSt3__13pmr26synchronized_pool_resourceE Symbol added: _ZTINSt3__13pmr28unsynchronized_pool_resourceE Symbol added: _ZTINSt3__13pmr32__new_delete_memory_resource_impE Symbol added: _ZTSNSt3__13pmr15memory_resourceE Symbol added: _ZTSNSt3__13pmr25monotonic_buffer_resourceE Symbol added: _ZTSNSt3__13pmr26__null_memory_resource_impE Symbol added: _ZTSNSt3__13pmr26synchronized_pool_resourceE Symbol added: _ZTSNSt3__13pmr28unsynchronized_pool_resourceE Symbol added: _ZTSNSt3__13pmr32__new_delete_memory_resource_impE Symbol added: _ZTVNSt3__13pmr25monotonic_buffer_resourceE Symbol added: _ZTVNSt3__13pmr26synchronized_pool_resourceE Symbol added: _ZTVNSt3__13pmr28unsynchronized_pool_resourceE ------------ Version 15.0 ------------ * f1c30135417f - [libc++] Drop the legacy debug mode symbols by default This commit removed symbols implementing debug mode in the non-debug configuration of the library. Using the debug mode now requires a differently-configured version of libc++. This is technically an ABI break, however any user having been using the debug mode support previously was already at risk of non-benign ODR violations, and in practice we never found it to work reliably. All platforms ------------- Symbol removed: _ZNKSt3__111__libcpp_db15__decrementableEPKv Symbol removed: _ZNKSt3__111__libcpp_db15__find_c_from_iEPv Symbol removed: _ZNKSt3__111__libcpp_db15__subscriptableEPKvl Symbol removed: _ZNKSt3__111__libcpp_db17__dereferenceableEPKv Symbol removed: _ZNKSt3__111__libcpp_db17__find_c_and_lockEPv Symbol removed: _ZNKSt3__111__libcpp_db22__less_than_comparableEPKvS2_ Symbol removed: _ZNKSt3__111__libcpp_db6unlockEv Symbol removed: _ZNKSt3__111__libcpp_db8__find_cEPv Symbol removed: _ZNKSt3__111__libcpp_db9__addableEPKvl Symbol removed: _ZNKSt3__119__libcpp_debug_info4whatEv Symbol removed: _ZNSt3__111__libcpp_db10__insert_cEPvPFPNS_8__c_nodeES1_S1_S3_E Symbol removed: _ZNSt3__111__libcpp_db10__insert_iEPv Symbol removed: _ZNSt3__111__libcpp_db11__insert_icEPvPKv Symbol removed: _ZNSt3__111__libcpp_db15__iterator_copyEPvPKv Symbol removed: _ZNSt3__111__libcpp_db16__invalidate_allEPv Symbol removed: _ZNSt3__111__libcpp_db4swapEPvS1_ Symbol removed: _ZNSt3__111__libcpp_db9__erase_cEPv Symbol removed: _ZNSt3__111__libcpp_db9__erase_iEPv Symbol removed: _ZNSt3__111__libcpp_dbC1Ev Symbol removed: _ZNSt3__111__libcpp_dbC2Ev Symbol removed: _ZNSt3__111__libcpp_dbD1Ev Symbol removed: _ZNSt3__111__libcpp_dbD2Ev Symbol removed: _ZNSt3__114__get_const_dbEv Symbol removed: _ZNSt3__123__libcpp_debug_functionE Symbol removed: _ZNSt3__127__libcpp_set_debug_functionEPFvRKNS_19__libcpp_debug_infoEE Symbol removed: _ZNSt3__129__libcpp_abort_debug_functionERKNS_19__libcpp_debug_infoE Symbol removed: _ZNSt3__18__c_node5__addEPNS_8__i_nodeE Symbol removed: _ZNSt3__18__c_nodeD0Ev Symbol removed: _ZNSt3__18__c_nodeD1Ev Symbol removed: _ZNSt3__18__c_nodeD2Ev Symbol removed: _ZNSt3__18__get_dbEv Symbol removed: _ZNSt3__18__i_nodeD1Ev Symbol removed: _ZNSt3__18__i_nodeD2Ev Symbol removed: _ZTINSt3__18__c_nodeE Symbol removed: _ZTSNSt3__18__c_nodeE Symbol removed: _ZTVNSt3__18__c_nodeE * b0fd9497af6d, 7de5aca84c54 and 507125af3d0b - [libc++] Add a lightweight overridable assertion handler This patch adds a lightweight assertion handler mechanism that can be overriden at link-time in a fashion similar to `operator new`. A default assertion handler is provided in the shared library, hence the added symbol. All platforms ------------- Symbol added: _ZNSt3__122__libcpp_verbose_abortEPKcz ------------ Version 14.0 ------------ * abb5dd6e99df - [libc++] `to_chars` for floating point. This commit added the `to_chars` implementation for floating point values. The entire implementation resides in the dylib and the functions specified in the Standard are now part of the ABI. All platforms ------------- Symbol added: _ZNSt3__18to_charsEPcS0_d Symbol added: _ZNSt3__18to_charsEPcS0_dNS_12chars_formatE Symbol added: _ZNSt3__18to_charsEPcS0_dNS_12chars_formatEi Symbol added: _ZNSt3__18to_charsEPcS0_e Symbol added: _ZNSt3__18to_charsEPcS0_eNS_12chars_formatE Symbol added: _ZNSt3__18to_charsEPcS0_eNS_12chars_formatEi Symbol added: _ZNSt3__18to_charsEPcS0_f Symbol added: _ZNSt3__18to_charsEPcS0_fNS_12chars_formatE Symbol added: _ZNSt3__18to_charsEPcS0_fNS_12chars_formatEi * 049f6c29a6f0 - [libc++] Resolve missing table_size symbol This commit added an out-of-line definition for `table_size` in the library. This is not an ABI break since we are just adding a symbol to the library. In fact, any program that would have attempted to refer to that symbol would have previously failed to link. -apple-darwin ------------------------- Symbol added: _ZNSt3__15ctypeIcE10table_sizeE x86_64-unknown-linux-gnu ------------------------ Symbol added: _ZNSt3__15ctypeIcE10table_sizeE * 434dc0a5bcae - [libc++] Always define a key function for std::bad_function_call in the dylib This commit added a new explicit instantiation of std::bad_function_call's vtable in the shared library. This change is not an ABI break as it only adds symbols to the library. Programs compiled against the library will not rely on the vtable being defined in it by default. Reliance on the vtable being in the shared library can be enabled by defining the _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION macro. Note that this commit also causes the libc++ shared library to start relying on std::exception::what() being provided. This is due to the fact that the shared library now contains the vtable for std::bad_function_call, which references std::exception::what(). This shouldn't be an issue since that function needs to be available to users in order to use std::bad_function_call before this patch too. All platforms ------------- Symbol added: _ZNSt3__117bad_function_callD0Ev Symbol added: _ZNSt3__117bad_function_callD1Ev Symbol added: _ZNSt3__117bad_function_callD2Ev Symbol added: _ZTINSt3__117bad_function_callE Symbol added: _ZTSNSt3__117bad_function_callE Symbol added: _ZTVNSt3__117bad_function_callE -unknown-linux-gnu ------------------------ Added dependency on symbol: _ZNKSt9exception4whatEv ------------ Version 12.0 ------------ * a984dcaf7c21 - [libc++] [P0482] [C++20] Implement missing bits for codecvt and codecvt_byname. This commit added new instantiations with char8_t for classes codecvt and codecvt_byname in in the library. All platforms ------------- Symbol added: _ZNKSt3__17codecvtIDiDu11__mbstate_tE10do_unshiftERS1_PDuS4_RS4_ Symbol added: _ZNKSt3__17codecvtIDiDu11__mbstate_tE11do_encodingEv Symbol added: _ZNKSt3__17codecvtIDiDu11__mbstate_tE13do_max_lengthEv Symbol added: _ZNKSt3__17codecvtIDiDu11__mbstate_tE16do_always_noconvEv Symbol added: _ZNKSt3__17codecvtIDiDu11__mbstate_tE5do_inERS1_PKDuS5_RS5_PDiS7_RS7_ Symbol added: _ZNKSt3__17codecvtIDiDu11__mbstate_tE6do_outERS1_PKDiS5_RS5_PDuS7_RS7_ Symbol added: _ZNKSt3__17codecvtIDiDu11__mbstate_tE9do_lengthERS1_PKDuS5_m Symbol added: _ZNKSt3__17codecvtIDsDu11__mbstate_tE10do_unshiftERS1_PDuS4_RS4_ Symbol added: _ZNKSt3__17codecvtIDsDu11__mbstate_tE11do_encodingEv Symbol added: _ZNKSt3__17codecvtIDsDu11__mbstate_tE13do_max_lengthEv Symbol added: _ZNKSt3__17codecvtIDsDu11__mbstate_tE16do_always_noconvEv Symbol added: _ZNKSt3__17codecvtIDsDu11__mbstate_tE5do_inERS1_PKDuS5_RS5_PDsS7_RS7_ Symbol added: _ZNKSt3__17codecvtIDsDu11__mbstate_tE6do_outERS1_PKDsS5_RS5_PDuS7_RS7_ Symbol added: _ZNKSt3__17codecvtIDsDu11__mbstate_tE9do_lengthERS1_PKDuS5_m Symbol added: _ZNSt3__114codecvt_bynameIDiDu11__mbstate_tED0Ev Symbol added: _ZNSt3__114codecvt_bynameIDiDu11__mbstate_tED1Ev Symbol added: _ZNSt3__114codecvt_bynameIDiDu11__mbstate_tED2Ev Symbol added: _ZNSt3__114codecvt_bynameIDsDu11__mbstate_tED0Ev Symbol added: _ZNSt3__114codecvt_bynameIDsDu11__mbstate_tED1Ev Symbol added: _ZNSt3__114codecvt_bynameIDsDu11__mbstate_tED2Ev Symbol added: _ZNSt3__17codecvtIDiDu11__mbstate_tE2idE Symbol added: _ZNSt3__17codecvtIDiDu11__mbstate_tED0Ev Symbol added: _ZNSt3__17codecvtIDiDu11__mbstate_tED1Ev Symbol added: _ZNSt3__17codecvtIDiDu11__mbstate_tED2Ev Symbol added: _ZNSt3__17codecvtIDsDu11__mbstate_tE2idE Symbol added: _ZNSt3__17codecvtIDsDu11__mbstate_tED0Ev Symbol added: _ZNSt3__17codecvtIDsDu11__mbstate_tED1Ev Symbol added: _ZNSt3__17codecvtIDsDu11__mbstate_tED2Ev Symbol added: _ZTINSt3__114codecvt_bynameIDiDu11__mbstate_tEE Symbol added: _ZTINSt3__114codecvt_bynameIDsDu11__mbstate_tEE Symbol added: _ZTINSt3__17codecvtIDiDu11__mbstate_tEE Symbol added: _ZTINSt3__17codecvtIDsDu11__mbstate_tEE Symbol added: _ZTSNSt3__17codecvtIDiDu11__mbstate_tEE Symbol added: _ZTSNSt3__17codecvtIDsDu11__mbstate_tEE Symbol added: _ZTVNSt3__114codecvt_bynameIDiDu11__mbstate_tEE Symbol added: _ZTVNSt3__114codecvt_bynameIDsDu11__mbstate_tEE Symbol added: _ZTVNSt3__17codecvtIDiDu11__mbstate_tEE Symbol added: _ZTVNSt3__17codecvtIDsDu11__mbstate_tEE -unknown-linux-gnu ------------------------ Symbol added: _ZTSNSt3__114codecvt_bynameIDiDu11__mbstate_tEE Symbol added: _ZTSNSt3__114codecvt_bynameIDsDu11__mbstate_tEE * 997d41cdec53 - [libc++] Instantiate additional members in the dylib This commit added new explicit instantiations for classes in in the library. This was done after noticing that many programs that used streams ended up containing weak definitions of these classes, which has a negative impact on both code size and load times. This change is not an ABI break, since we are just adding additional symbols. All platforms ------------- Symbol added: _ZNKSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE3strEv Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE11__read_modeEv Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE12__write_modeEv Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE4openEPKcj Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE4swapERS3_ Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE4syncEv Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE5closeEv Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE5imbueERKNS_6localeE Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE6setbufEPcl Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE7seekoffExNS_8ios_base7seekdirEj Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE7seekposENS_4fposI11__mbstate_tEEj Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE8overflowEi Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE9pbackfailEi Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE9underflowEv Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEEC1EOS3_ Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEEC1Ev Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEEC2EOS3_ Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEEC2Ev Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEED0Ev Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEED1Ev Symbol added: _ZNSt3__113basic_filebufIcNS_11char_traitsIcEEED2Ev Symbol added: _ZNSt3__114basic_ifstreamIcNS_11char_traitsIcEEE4openEPKcj Symbol added: _ZNSt3__114basic_ifstreamIcNS_11char_traitsIcEEE4openERKNS_12basic_stringIcS2_NS_9allocatorIcEEEEj Symbol added: _ZNSt3__114basic_ofstreamIcNS_11char_traitsIcEEE4openEPKcj Symbol added: _ZNSt3__114basic_ofstreamIcNS_11char_traitsIcEEE4openERKNS_12basic_stringIcS2_NS_9allocatorIcEEEEj Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE3strERKNS_12basic_stringIcS2_S4_EE Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE4swapERS5_ Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE7seekoffExNS_8ios_base7seekdirEj Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE8overflowEi Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE9pbackfailEi Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE9underflowEv Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEC1EOS5_ Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEC2EOS5_ Symbol added: _ZNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_ Symbol added: _ZNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_ Symbol added: _ZNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_ Symbol added: _ZNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_ Symbol added: _ZTCNSt3__114basic_ifstreamIcNS_11char_traitsIcEEEE0_NS_13basic_istreamIcS2_EE Symbol added: _ZTCNSt3__114basic_ofstreamIcNS_11char_traitsIcEEEE0_NS_13basic_ostreamIcS2_EE Symbol added: _ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_13basic_istreamIcS2_EE Symbol added: _ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_14basic_iostreamIcS2_EE Symbol added: _ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE16_NS_13basic_ostreamIcS2_EE Symbol added: _ZTCNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_13basic_istreamIcS2_EE Symbol added: _ZTCNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_13basic_ostreamIcS2_EE Symbol added: _ZTINSt3__113basic_filebufIcNS_11char_traitsIcEEEE Symbol added: _ZTINSt3__114basic_ifstreamIcNS_11char_traitsIcEEEE Symbol added: _ZTINSt3__114basic_ofstreamIcNS_11char_traitsIcEEEE Symbol added: _ZTINSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTINSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTINSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTINSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTSNSt3__113basic_filebufIcNS_11char_traitsIcEEEE Symbol added: _ZTSNSt3__114basic_ifstreamIcNS_11char_traitsIcEEEE Symbol added: _ZTSNSt3__114basic_ofstreamIcNS_11char_traitsIcEEEE Symbol added: _ZTSNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTSNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTSNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTSNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTTNSt3__114basic_ifstreamIcNS_11char_traitsIcEEEE Symbol added: _ZTTNSt3__114basic_ofstreamIcNS_11char_traitsIcEEEE Symbol added: _ZTTNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTTNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTTNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTVNSt3__113basic_filebufIcNS_11char_traitsIcEEEE Symbol added: _ZTVNSt3__114basic_ifstreamIcNS_11char_traitsIcEEEE Symbol added: _ZTVNSt3__114basic_ofstreamIcNS_11char_traitsIcEEEE Symbol added: _ZTVNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTVNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTVNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE Symbol added: _ZTVNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE * 9b40ee8eb0c1 - [libc++] Define new/delete in libc++abi only by default By default, libc++ does not include the definition for new and delete anymore. Those were previously defined in both libc++ and libc++abi, which was an ODR violation. -apple-darwin ------------------------- The following symbols are now re-exported from libc++abi instead of exported by libc++ directly (this should not be an ABI break): Symbol moved: __ZdaPv Symbol moved: __ZdaPvm Symbol moved: __ZdaPvmSt11align_val_t Symbol moved: __ZdaPvRKSt9nothrow_t Symbol moved: __ZdaPvSt11align_val_t Symbol moved: __ZdaPvSt11align_val_tRKSt9nothrow_t Symbol moved: __ZdlPv Symbol moved: __ZdlPvm Symbol moved: __ZdlPvmSt11align_val_t Symbol moved: __ZdlPvRKSt9nothrow_t Symbol moved: __ZdlPvSt11align_val_t Symbol moved: __ZdlPvSt11align_val_tRKSt9nothrow_t Symbol moved: __Znam Symbol moved: __ZnamRKSt9nothrow_t Symbol moved: __ZnamSt11align_val_t Symbol moved: __ZnamSt11align_val_tRKSt9nothrow_t Symbol moved: __Znwm Symbol moved: __ZnwmRKSt9nothrow_t Symbol moved: __ZnwmSt11align_val_t Symbol moved: __ZnwmSt11align_val_tRKSt9nothrow_t -unknown-linux-gnu ------------------------ The following symbols were moved to libc++abi, but are NOT being re-exported by libc++. This constitutes an ABI break if one links against libc++ but not libc++abi. Symbol moved: _ZdaPv Symbol moved: _ZdaPvm Symbol moved: _ZdaPvmSt11align_val_t Symbol moved: _ZdaPvRKSt9nothrow_t Symbol moved: _ZdaPvSt11align_val_t Symbol moved: _ZdaPvSt11align_val_tRKSt9nothrow_t Symbol moved: _ZdlPv Symbol moved: _ZdlPvm Symbol moved: _ZdlPvmSt11align_val_t Symbol moved: _ZdlPvRKSt9nothrow_t Symbol moved: _ZdlPvSt11align_val_t Symbol moved: _ZdlPvSt11align_val_tRKSt9nothrow_t Symbol moved: _Znam Symbol moved: _ZnamRKSt9nothrow_t Symbol moved: _ZnamSt11align_val_t Symbol moved: _ZnamSt11align_val_tRKSt9nothrow_t Symbol moved: _Znwm Symbol moved: _ZnwmRKSt9nothrow_t Symbol moved: _ZnwmSt11align_val_t Symbol moved: _ZnwmSt11align_val_tRKSt9nothrow_t * 4f13b9992971 - [libc++] Simplify how we re-export symbols from libc++abi We re-export some symbols that were exported from libc++abi but not from libc++. Exporting new symbols is not an ABI break. -apple-darwin ------------------- Symbol added: ___cxa_allocate_dependent_exception Symbol added: ___cxa_free_dependent_exception ------------ Version 10.0 ------------ * 54fa9ecd3088 - [libc++] Implementation of C++20's P1135R6 for libcxx libc++ now implements P1135R6 (The C++20 Synchronization Library), which adds a few symbols to the dylib. This is backwards-compatible since we're just adding new symbols. All platforms ------------- Symbol added: __ZNSt3__120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEEx Symbol added: __ZNSt3__120__libcpp_atomic_waitEPVKvx Symbol added: __ZNSt3__123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEE Symbol added: __ZNSt3__123__cxx_atomic_notify_allEPVKv Symbol added: __ZNSt3__123__cxx_atomic_notify_oneEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEE Symbol added: __ZNSt3__123__cxx_atomic_notify_oneEPVKv Symbol added: __ZNSt3__123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEE Symbol added: __ZNSt3__123__libcpp_atomic_monitorEPVKv Symbol added: __ZNSt3__131__arrive_barrier_algorithm_baseEPNS_24__barrier_algorithm_baseEh Symbol added: __ZNSt3__132__destroy_barrier_algorithm_baseEPNS_24__barrier_algorithm_baseE Symbol added: __ZNSt3__134__construct_barrier_algorithm_baseERl ----------- Version 9.0 ----------- * r358690 - Re-rexport missing symbols from libc++abi libc++ now re-exports `__cxa_throw_bad_array_new_length` and `__cxa_uncaught_exceptions`, both of which are provided by libc++abi. This is not an ABI break because we're just adding symbols. Also, this does mean that libc++ can't be linked against an older version of libc++abi that doesn't provide those symbols, however doing so is not supported anyway. -apple-darwin ------------------- Symbol added: ___cxa_throw_bad_array_new_length Symbol added: ___cxa_uncaught_exceptions * r356518 - Integrate support into the shared library This patch introduces support for into the shared library, instead of requiring users to manually link against a static archive. As such, new symbols required to implement are exported from the shared library. All platforms ------------- Symbol added: _ZNKSt3__14__fs10filesystem18directory_iterator13__dereferenceEv Symbol added: _ZNKSt3__14__fs10filesystem28recursive_directory_iterator13__dereferenceEv Symbol added: _ZNKSt3__14__fs10filesystem28recursive_directory_iterator5depthEv Symbol added: _ZNKSt3__14__fs10filesystem28recursive_directory_iterator7optionsEv Symbol added: _ZNKSt3__14__fs10filesystem4path10__filenameEv Symbol added: _ZNKSt3__14__fs10filesystem4path11__extensionEv Symbol added: _ZNKSt3__14__fs10filesystem4path11__root_nameEv Symbol added: _ZNKSt3__14__fs10filesystem4path13__parent_pathEv Symbol added: _ZNKSt3__14__fs10filesystem4path15__relative_pathEv Symbol added: _ZNKSt3__14__fs10filesystem4path15__root_path_rawEv Symbol added: _ZNKSt3__14__fs10filesystem4path16__root_directoryEv Symbol added: _ZNKSt3__14__fs10filesystem4path16lexically_normalEv Symbol added: _ZNKSt3__14__fs10filesystem4path18lexically_relativeERKS2_ Symbol added: _ZNKSt3__14__fs10filesystem4path3endEv Symbol added: _ZNKSt3__14__fs10filesystem4path5beginEv Symbol added: _ZNKSt3__14__fs10filesystem4path6__stemEv Symbol added: _ZNKSt3__14__fs10filesystem4path9__compareENS_17basic_string_viewIcNS_11char_traitsIcEEEE Symbol added: _ZNSt3__14__fs10filesystem10__absoluteERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem10hash_valueERKNS1_4pathE Symbol added: _ZNSt3__14__fs10filesystem11__canonicalERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem11__copy_fileERKNS1_4pathES4_NS1_12copy_optionsEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem11__file_sizeERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem12__equivalentERKNS1_4pathES4_PNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem12__remove_allERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem13__fs_is_emptyERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem13__permissionsERKNS1_4pathENS1_5permsENS1_12perm_optionsEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem13__resize_fileERKNS1_4pathEmPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem14__copy_symlinkERKNS1_4pathES4_PNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem14__current_pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem14__current_pathERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem14__read_symlinkERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem15directory_entry12__do_refreshEv Symbol added: _ZNSt3__14__fs10filesystem16__create_symlinkERKNS1_4pathES4_PNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem16__symlink_statusERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem16_FilesystemClock3nowEv Symbol added: _ZNSt3__14__fs10filesystem16_FilesystemClock9is_steadyE Symbol added: _ZNSt3__14__fs10filesystem16filesystem_error13__create_whatEi Symbol added: _ZNSt3__14__fs10filesystem16filesystem_errorD0Ev Symbol added: _ZNSt3__14__fs10filesystem16filesystem_errorD1Ev Symbol added: _ZNSt3__14__fs10filesystem16filesystem_errorD2Ev Symbol added: _ZNSt3__14__fs10filesystem17__hard_link_countERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem17__last_write_timeERKNS1_4pathENS_6chrono10time_pointINS1_16_FilesystemClockENS5_8durationInNS_5ratioILl1ELl1000000000EEEEEEEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem17__last_write_timeERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem18__create_directoryERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem18__create_directoryERKNS1_4pathES4_PNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem18__create_hard_linkERKNS1_4pathES4_PNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem18__weakly_canonicalERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem18directory_iterator11__incrementEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem18directory_iteratorC1ERKNS1_4pathEPNS_10error_codeENS1_17directory_optionsE Symbol added: _ZNSt3__14__fs10filesystem18directory_iteratorC2ERKNS1_4pathEPNS_10error_codeENS1_17directory_optionsE Symbol added: _ZNSt3__14__fs10filesystem20__create_directoriesERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem21__temp_directory_pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem26__create_directory_symlinkERKNS1_4pathES4_PNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem28recursive_directory_iterator11__incrementEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem28recursive_directory_iterator15__try_recursionEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem28recursive_directory_iterator5__popEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem28recursive_directory_iterator9__advanceEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem28recursive_directory_iteratorC1ERKNS1_4pathENS1_17directory_optionsEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem28recursive_directory_iteratorC2ERKNS1_4pathENS1_17directory_optionsEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem4path17replace_extensionERKS2_ Symbol added: _ZNSt3__14__fs10filesystem4path19preferred_separatorE Symbol added: _ZNSt3__14__fs10filesystem4path8iterator11__decrementEv Symbol added: _ZNSt3__14__fs10filesystem4path8iterator11__incrementEv Symbol added: _ZNSt3__14__fs10filesystem6__copyERKNS1_4pathES4_NS1_12copy_optionsEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem7__spaceERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem8__removeERKNS1_4pathEPNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem8__renameERKNS1_4pathES4_PNS_10error_codeE Symbol added: _ZNSt3__14__fs10filesystem8__statusERKNS1_4pathEPNS_10error_codeE Symbol added: _ZTINSt3__14__fs10filesystem16filesystem_errorE Symbol added: _ZTSNSt3__14__fs10filesystem16filesystem_errorE Symbol added: _ZTVNSt3__14__fs10filesystem16filesystem_errorE * r356417 - Remove exception throwing debug mode handler support. The reason libc++ implemented a throwing debug mode handler was for ease of testing. Specifically, I thought that if a debug violation aborted, we could only test one violation per file. This made it impossible to test debug mode. Which throwing behavior we could test more! However, the throwing approach didn't work either, since there are debug violations underneath noexcept functions. This lead to the introduction of `_NOEXCEPT_DEBUG`, which was only noexcept when debug mode was off. Having thought more and having grown wiser, `_NOEXCEPT_DEBUG` was a horrible decision. It was viral, it didn't cover all the cases it needed to, and it was observable to the user -- at worst changing the behavior of their program. This patch removes the throwing debug handler, and rewrites the debug tests using 'fork-ing' style death tests. All Platforms (ignoring versioning namespaces) ---------------------------------------------- Symbol added: _ZNKSt3__119__libcpp_debug_info4whatEv Symbol removed: _ZNKSt3__124__libcpp_debug_exception4whatEv Symbol removed: _ZNSt3__124__libcpp_debug_exceptionC1ERKNS_19__libcpp_debug_infoE Symbol removed: _ZNSt3__124__libcpp_debug_exceptionC1ERKS0_ Symbol removed: _ZNSt3__124__libcpp_debug_exceptionC1Ev Symbol removed: _ZNSt3__124__libcpp_debug_exceptionC2ERKNS_19__libcpp_debug_infoE Symbol removed: _ZNSt3__124__libcpp_debug_exceptionC2ERKS0_ Symbol removed: _ZNSt3__124__libcpp_debug_exceptionC2Ev Symbol removed: _ZNSt3__124__libcpp_debug_exceptionD0Ev Symbol removed: _ZNSt3__124__libcpp_debug_exceptionD1Ev Symbol removed: _ZNSt3__124__libcpp_debug_exceptionD2Ev Symbol removed: _ZNSt3__129__libcpp_throw_debug_functionERKNS_19__libcpp_debug_infoE Symbol removed: _ZTINSt3__124__libcpp_debug_exceptionE Symbol removed: _ZTSNSt3__124__libcpp_debug_exceptionE Symbol removed: _ZTVNSt3__124__libcpp_debug_exceptionE -apple-darwin ------------------- Symbol added: __ZNSt3__111__libcpp_db10__insert_cEPvPFPNS_8__c_nodeES1_S1_S3_E Symbol removed: __ZNSt3__111__libcpp_db10__insert_cEPv * r355367 - Fix -fsanitize=vptr badness in <__debug> This patch fixes a lifetime bug when inserting a new container into the debug database. It is diagnosed by UBSAN when debug mode is enabled. This patch corrects how nodes are constructed during insertion. The fix requires unconditionally breaking the debug mode ABI. Users should not expect ABI stability from debug mode. All platforms ------------- Symbol added: _ZNSt3__111__libcpp_db10__insert_cEPvPFPNS_8__c_nodeES1_S1_S3_E Symbol removed: _ZNSt3__111__libcpp_db10__insert_cEPv ----------- Version 8.0 ----------- * r347903 - Remove std::bad_array_length The change removes the definition of std::bad_array_length (which never made it into the standard) from the headers and the dylib. This is technically an ABI break because the symbols are shipped starting with mac OSX 10.13, however users couldn't be relying on the functionality because it is marked as being unavailable using Clang's availability attribute. -apple-darwin ------------------- Symbol removed: __ZNKSt16bad_array_length4whatEv Symbol removed: __ZNKSt16bad_array_length4whatEv Symbol removed: __ZNSt16bad_array_lengthC1Ev Symbol removed: __ZNSt16bad_array_lengthC1Ev Symbol removed: __ZNSt16bad_array_lengthC2Ev Symbol removed: __ZNSt16bad_array_lengthC2Ev Symbol removed: __ZNSt16bad_array_lengthD0Ev Symbol removed: __ZNSt16bad_array_lengthD0Ev Symbol removed: __ZNSt16bad_array_lengthD1Ev Symbol removed: __ZNSt16bad_array_lengthD1Ev Symbol removed: __ZNSt16bad_array_lengthD2Ev Symbol removed: __ZNSt16bad_array_lengthD2Ev Symbol removed: __ZTISt16bad_array_length Symbol removed: __ZTISt16bad_array_length Symbol removed: __ZTSSt16bad_array_length Symbol removed: __ZTSSt16bad_array_length Symbol removed: __ZTVSt16bad_array_length Symbol removed: __ZTVSt16bad_array_length * r347395 - Making libc++ build under -fvisibility=hidden on Linux The change marks several function templates as hidden. This removes symbols from the shared library, but this is not an ABI break because it's impossible for programs linking against libc++.so to actually depend on that symbol. The reason is that the symbol is exported from the shared library through an implicit instantiation present in the shared object itself only. Furthermore, if a user's shared object was implicitly instantiating one of these functions, marking that symbol as hidden would not be an ABI break for them because none of their users could actually be using the symbol in their dylib (because it's an implicit instantiation). x86_64-linux-gnu ---------------- Symbol removed: _ZNSt3__125__num_get_signed_integralIlEET_PKcS3_Rji Symbol removed: _ZNSt3__125__num_get_signed_integralIxEET_PKcS3_Rji Symbol removed: _ZNSt3__127__num_get_unsigned_integralIjEET_PKcS3_Rji Symbol removed: _ZNSt3__127__num_get_unsigned_integralImEET_PKcS3_Rji Symbol removed: _ZNSt3__127__num_get_unsigned_integralItEET_PKcS3_Rji Symbol removed: _ZNSt3__127__num_get_unsigned_integralIyEET_PKcS3_Rji Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIaaEEPaEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIccEEPcEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIddEEPdEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIffEEPfEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIhhEEPhEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIiiEEPiEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIjjEEPjEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIllEEPlEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessImmEEPmEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIssEEPsEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIttEEPtEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIwwEEPwEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIxxEEPxEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIyyEEPyEEjT0_S5_S5_S5_S5_T_ Symbol removed: _ZNSt3__1plIcNS_11char_traitsIcEENS_9allocatorIcEEEENS_12basic_stringIT_T0_T1_EERKS9_PKS6_ Symbol removed: _ZSt18make_exception_ptrINSt3__112future_errorEESt13exception_ptrT_ * r345260 - Making libc++ build under -fvisibility=hidden on Mac OS The change marks __thread_specific_ptr<__thread_struct>::__at_thread_exit(void*) with hidden visibility. This removes a symbol from the shared libraries, however this is not an ABI break because it's impossible for programs linking against libc++.dylib to actually depend on that symbol. The reason is that the symbol is exported from the shared library through an implicit instantiation present in the dylib itself only. Furthermore, if a user's dylib was implicitly instantiating __thread_specific_ptr::__at_thread_exit (because it's defined in the headers), marking that symbol as hidden would not be an ABI break for them because none of their users could actually be using the symbol in their dylib (because it's an implicit instantiation). This change also marks __start_std_streams as hidden -- this variable is only required to initialize the streams, and nobody should depend on it from outside the dylib. x86_64-linux-gnu ---------------- Symbol removed: _ZNSt3__121__thread_specific_ptrINS_15__thread_structEE16__at_thread_exitEPv Symbol removed: _ZNSt3__119__start_std_streamsE -apple-darwin ------------------- Symbol removed: __ZNSt3__221__thread_specific_ptrINS_15__thread_structEE16__at_thread_exitEPv Symbol removed: __ZNSt3__119__start_std_streamsE ----------- Version 7.0 ----------- * r338479 - Elementary string conversions for integral types The change emits __u64toa and __u32toa under std::__1::__itoa. x86_64-linux-gnu ---------------- Symbol added: _ZNSt3__16__itoa8__u64toaEmPc Symbol added: _ZNSt3__16__itoa8__u32toaEjPc -apple-darwin ------------------- Symbol added: __ZNSt3__16__itoa8__u64toaEyPc Symbol added: __ZNSt3__16__itoa8__u32toaEjPc * r333467 - Fix embarrasing typo in uncaught_exceptions. This bug caused __uncaught_exception to be ODR used instead of __uncaught_exceptions. This change is non-ABI breaking because the symbols for std::uncaught_exception and std::uncaught_exceptions haven't changed, and because users shouldn't be depending directly on libc++ exporting __uncaught_exception/__uncaught_exceptions. All Platforms ---------------- Symbol removed: __cxa_uncaught_exception Symbol added: __cxa_uncaught_exceptions ----------- Version 5.0 ----------- * r313500 - Fix undefined "___cxa_deleted_virtual" symbol in macosx x86_64-linux-gnu ---------------- No changes -apple-darwin ------------------- Symbol added: ___cxa_deleted_virtual * r296729 - Remove std::num_get template methods which should be inline These functions should never have had visible definitions in the dylib but since they were previously not specified with 'inline' they accidentally got emitted. This change is non-ABI breaking because every "linkage unit" must contain its own definition. x86_64-linux-gnu ---------------- Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE15__do_get_signedIlEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE15__do_get_signedIxEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE17__do_get_unsignedIjEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE17__do_get_unsignedImEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE17__do_get_unsignedItEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE17__do_get_unsignedIyEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE23__do_get_floating_pointIdEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE23__do_get_floating_pointIeEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE23__do_get_floating_pointIfEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE15__do_get_signedIlEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE15__do_get_signedIxEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE17__do_get_unsignedIjEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE17__do_get_unsignedImEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE17__do_get_unsignedItEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE17__do_get_unsignedIyEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE23__do_get_floating_pointIdEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE23__do_get_floating_pointIeEES4_S4_S4_RNS_8ios_baseERjRT_ Symbol removed: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE23__do_get_floating_pointIfEES4_S4_S4_RNS_8ios_baseERjRT_ -apple-darwin ------------------- No changes ----------- Version 4.0 ----------- * r290651 - Add _LIBCPP_ASSERT debug handling functions All Platforms ------------- Symbol added: _ZNSt3__124__libcpp_debug_exceptionC2ERKNS_19__libcpp_debug_infoE Symbol added: _ZNSt3__124__libcpp_debug_exceptionD1Ev Symbol added: _ZTINSt3__124__libcpp_debug_exceptionE Symbol added: _ZNSt3__129__libcpp_throw_debug_functionERKNS_19__libcpp_debug_infoE Symbol added: _ZNSt3__124__libcpp_debug_exceptionD2Ev Symbol added: _ZNSt3__129__libcpp_abort_debug_functionERKNS_19__libcpp_debug_infoE Symbol added: _ZNSt3__124__libcpp_debug_exceptionC2ERKS0_ Symbol added: _ZNSt3__124__libcpp_debug_exceptionC1Ev Symbol added: _ZNSt3__124__libcpp_debug_exceptionC1ERKNS_19__libcpp_debug_infoE Symbol added: _ZNSt3__124__libcpp_debug_exceptionC2Ev Symbol added: _ZTSNSt3__124__libcpp_debug_exceptionE Symbol added: _ZNSt3__123__libcpp_debug_functionE Symbol added: _ZNKSt3__124__libcpp_debug_exception4whatEv Symbol added: _ZNSt3__124__libcpp_debug_exceptionC1ERKS0_ Symbol added: _ZNSt3__124__libcpp_debug_exceptionD0Ev Symbol added: _ZTVNSt3__124__libcpp_debug_exceptionE Symbol added: _ZNSt3__127__libcpp_set_debug_functionEPFvRKNS_19__libcpp_debug_infoEE * r288547 - Implement C++17 All Platforms ------------- Symbol added: _ZTVSt18bad_variant_access Symbol added: _ZTISt18bad_variant_access Symbol added: _ZTSSt18bad_variant_access Symbol added: _ZNKSt18bad_variant_access4whatEv * r285537 - Remove std::string::append template methods which should be inline These functions should never have had visible definitions in the dylib but since they were previously not specified with 'inline' they accidentally got emitted. This change is non-ABI breaking because every "linkage unit" must contain its own definition. x86_64-linux-gnu ---------------- Symbol removed: _ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6appendIPcEENS_9enable_ifIXaasr21__is_forward_iteratorIT_EE5valuesr38__libcpp_string_gets_noexcept_iteratorIS9_EE5valueERS5_E4typeES9_S9_ Symbol removed: _ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6appendIPwEENS_9enable_ifIXaasr21__is_forward_iteratorIT_EE5valuesr38__libcpp_string_gets_noexcept_iteratorIS9_EE5valueERS5_E4typeES9_S9_ -apple-darwin ------------------- No changes * r285101 - Add -fvisibility-inlines-hidden when building libc++. Although this change removes symbols, it should still be non-ABI breaking since all of the definitions removed are inline functions. For this reason removing these symbols is safe because every "linkage unit" which uses these functions will contain their own definition. x86_64-linux-gnu ---------------- Symbol removed: _ZNSt12bad_any_castD0Ev Symbol removed: _ZNSt12experimental15fundamentals_v112bad_any_castD0Ev Symbol removed: _ZNSt3__114__codecvt_utf8IDiED0Ev Symbol removed: _ZNSt3__114__codecvt_utf8IDsED0Ev Symbol removed: _ZNSt3__114__codecvt_utf8IwED0Ev Symbol removed: _ZNSt3__115__codecvt_utf16IDiLb0EED0Ev Symbol removed: _ZNSt3__115__codecvt_utf16IDiLb1EED0Ev Symbol removed: _ZNSt3__115__codecvt_utf16IDsLb0EED0Ev Symbol removed: _ZNSt3__115__codecvt_utf16IDsLb1EED0Ev Symbol removed: _ZNSt3__115__codecvt_utf16IwLb0EED0Ev Symbol removed: _ZNSt3__115__codecvt_utf16IwLb1EED0Ev Symbol removed: _ZNSt3__117__assoc_sub_stateD0Ev Symbol removed: _ZNSt3__117__assoc_sub_stateD2Ev Symbol removed: _ZNSt3__117__libcpp_sscanf_lEPKcP15__locale_structS1_z Symbol removed: _ZNSt3__119__libcpp_asprintf_lEPPcP15__locale_structPKcz Symbol removed: _ZNSt3__119__libcpp_snprintf_lEPcmP15__locale_structPKcz Symbol removed: _ZNSt3__120__codecvt_utf8_utf16IDiED0Ev Symbol removed: _ZNSt3__120__codecvt_utf8_utf16IDsED0Ev Symbol removed: _ZNSt3__120__codecvt_utf8_utf16IwED0Ev -apple-darwin ------------------- No Changes - inline symbols are already hidden * r284206 - Implement C++17 aligned allocation in x86_64-linux-gnu ---------------- Symbol added: _ZdaPvSt11align_val_t Symbol added: _ZdlPvSt11align_val_t Symbol added: _ZnamSt11align_val_t Symbol added: _ZdaPvmSt11align_val_t Symbol added: _ZdlPvmSt11align_val_t Symbol added: _ZdlPvSt11align_val_tRKSt9nothrow_t Symbol added: _ZnwmSt11align_val_tRKSt9nothrow_t Symbol added: _ZnamSt11align_val_tRKSt9nothrow_t Symbol added: _ZdaPvSt11align_val_tRKSt9nothrow_t Symbol added: _ZnwmSt11align_val_t * r283980 - Implement C++17 x86_64-linux-gnu ---------------- Symbol added: _ZTISt19bad_optional_access Symbol added: _ZNSt19bad_optional_accessD0Ev Symbol added: _ZNSt19bad_optional_accessD1Ev Symbol added: _ZNSt19bad_optional_accessD2Ev Symbol added: _ZTVSt19bad_optional_access Symbol added: _ZTSSt19bad_optional_access * r278310 - Implement C++17 x86_64-linux-gnu ---------------- Symbol added: _ZNKSt12bad_any_cast4whatEv Symbol added: _ZNSt12bad_any_castD0Ev Symbol added: _ZTISt12bad_any_cast Symbol added: _ZTSSt12bad_any_cast Symbol added: _ZTVSt12bad_any_cast * r295398 - Remove basic_string::insert and basic_string::replace template methods which should be inline. These functions should never have had visible definitions in the dylib but since they were previously not specified with 'inline' they accidentally got emitted. This change is non-ABI breaking because every "linkage unit" must contain its own definition. x86_64-linux-gnu ---------------- Symbol removed: _ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6insertIPKcEENS_9enable_ifIXaasr21__is_forward_iteratorIT_EE5valuesr38__libcpp_string_gets_noexcept_iteratorISA_EE5valueENS_11__wrap_iterIPcEEE4typeENSB_IS8_EESA_SA_ Symbol removed: _ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE7replaceIPKcEENS_9enable_ifIXsr19__is_input_iteratorIT_EE5valueERS5_E4typeENS_11__wrap_iterIS8_EESF_SA_SA_ Symbol removed: _ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6insertIPKwEENS_9enable_ifIXaasr21__is_forward_iteratorIT_EE5valuesr38__libcpp_string_gets_noexcept_iteratorISA_EE5valueENS_11__wrap_iterIPwEEE4typeENSB_IS8_EESA_SA_ Symbol removed: _ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE7replaceIPKwEENS_9enable_ifIXsr19__is_input_iteratorIT_EE5valueERS5_E4typeENS_11__wrap_iterIS8_EESF_SA_SA_