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-llvm-cxxmap - Mangled name remapping tool
-=========================================
-
-SYNOPSIS
---------
-
-:program:`llvm-cxxmap` [*options*] *symbol-file-1* *symbol-file-2*
-
-DESCRIPTION
------------
-
-The :program:`llvm-cxxmap` tool performs fuzzy matching of C++ mangled names,
-based on a file describing name components that should be considered equivalent.
-
-The symbol files should contain a list of C++ mangled names (one per line).
-Blank lines and lines starting with ``#`` are ignored. The output is a list
-of pairs of equivalent symbols, one per line, of the form
-
-.. code-block:: none
-
-  <symbol-1> <symbol-2>
-
-where ``<symbol-1>`` is a symbol from *symbol-file-1* and ``<symbol-2>`` is
-a symbol from *symbol-file-2*. Mappings for which the two symbols are identical
-are omitted.
-
-OPTIONS
--------
-
-.. program:: llvm-cxxmap
-
-.. option:: -remapping-file=file, -r=file
-
- Specify a file containing a list of equivalence rules that should be used
- to determine whether two symbols are equivalent. Required.
- See :ref:`remapping-file`.
-
-.. option:: -output=file, -o=file
-
- Specify a file to write the list of matched names to. If unspecified, the
- list will be written to stdout.
-
-.. option:: -Wambiguous
-
- Produce a warning if there are multiple equivalent (but distinct) symbols in
- *symbol-file-2*.
-
-.. option:: -Wincomplete
-
- Produce a warning if *symbol-file-1* contains a symbol for which there is no
- equivalent symbol in *symbol-file-2*.
-
-.. _remapping-file:
-
-REMAPPING FILE
---------------
-
-The remapping file is a text file containing lines of the form
-
-.. code-block:: none
-
-  fragmentkind fragment1 fragment2
-
-where ``fragmentkind`` is one of ``name``, ``type``, or ``encoding``,
-indicating whether the following mangled name fragments are
-<`name <http://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangle.name>`_>s,
-<`type <http://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangle.type>`_>s, or
-<`encoding <http://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangle.encoding>`_>s,
-respectively.
-Blank lines and lines starting with ``#`` are ignored.
-
-For convenience, built-in <substitution>s such as ``St`` and ``Ss``
-are accepted as <name>s (even though they technically are not <name>s).
-
-For example, to specify that ``absl::string_view`` and ``std::string_view``
-should be treated as equivalent, the following remapping file could be used:
-
-.. code-block:: none
-
-  # absl::string_view is considered equivalent to std::string_view
-  type N4absl11string_viewE St17basic_string_viewIcSt11char_traitsIcEE
-
-  # std:: might be std::__1:: in libc++ or std::__cxx11:: in libstdc++
-  name St St3__1
-  name St St7__cxx11
-
-.. note::
-
-  Symbol remapping is currently only supported for C++ mangled names
-  following the Itanium C++ ABI mangling scheme. This covers all C++ targets
-  supported by Clang other than Windows targets.