diff options
| author | Alexander Smirnov <alex@ydb.tech> | 2024-11-20 11:14:58 +0000 |
|---|---|---|
| committer | Alexander Smirnov <alex@ydb.tech> | 2024-11-20 11:14:58 +0000 |
| commit | 31773f157bf8164364649b5f470f52dece0a4317 (patch) | |
| tree | 33d0f7eef45303ab68cf08ab381ce5e5e36c5240 /contrib/libs/cxxsupp/libcxx/include/__config | |
| parent | 2c7938962d8689e175574fc1e817c05049f27905 (diff) | |
| parent | eff600952d5dfe17942f38f510a8ac2b203bb3a5 (diff) | |
| download | ydb-31773f157bf8164364649b5f470f52dece0a4317.tar.gz | |
Merge branch 'rightlib' into mergelibs-241120-1113
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/include/__config')
| -rw-r--r-- | contrib/libs/cxxsupp/libcxx/include/__config | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/include/__config b/contrib/libs/cxxsupp/libcxx/include/__config index f804928a6a..4856162769 100644 --- a/contrib/libs/cxxsupp/libcxx/include/__config +++ b/contrib/libs/cxxsupp/libcxx/include/__config @@ -194,6 +194,11 @@ // 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 +// Save memory by providing the allocator more freedom to allocate the most +// efficient size class by dropping the alignment requirements for std::string's +// pointer from 16 to 8. This changes the output of std::string::max_size, +// which makes it ABI breaking +# define _LIBCPP_ABI_STRING_8_BYTE_ALIGNMENT # 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 @@ -220,11 +225,6 @@ # 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. @@ -246,11 +246,10 @@ // HARDENING { -// TODO(hardening): remove this in LLVM 19. +// TODO(hardening): deprecate this in LLVM 19. // This is for backward compatibility -- make enabling `_LIBCPP_ENABLE_ASSERTIONS` (which predates hardening modes) // equivalent to setting the safe mode. # ifdef _LIBCPP_ENABLE_ASSERTIONS -# warning "_LIBCPP_ENABLE_ASSERTIONS is deprecated, please use _LIBCPP_ENABLE_SAFE_MODE instead." # if _LIBCPP_ENABLE_ASSERTIONS != 0 && _LIBCPP_ENABLE_ASSERTIONS != 1 # error "_LIBCPP_ENABLE_ASSERTIONS must be set to 0 or 1" # endif |