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This patch uses our availability machinery to allow defining a key function for bad_function_call and bad_expected_access at all times but only rely on it when we can. This prevents compilers from complaining about weak vtables and reduces code bloat and the amount of work done by the dynamic linker. rdar://111917845
This directory contains abi lists representing the symbols exported by the libc++ library. The lists are generated using libcxx/utils/generate_abi_list.py. Every time a symbol is added or removed from the libc++ library, each of the lists *MUST* be updated to reflect the changes. This can be done by using the `generate-cxx-abilist` CMake target. We do not keep an up-to-date ABI list for all the build configurations of libc++. Currently, only the default configuration on MacOS and Linux are supported.