e941b031d3
This reverts commit f7a33090a9.
Unfortunately this causes a number of failures that didn't show up in my
local build.
93 lines
2.8 KiB
ReStructuredText
93 lines
2.8 KiB
ReStructuredText
.. _BuildingCompilerRT:
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===============
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Building Compiler-RT
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===============
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.. contents::
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:local:
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.. _build instructions:
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The instructions on this page are aimed at vendors who ship Compiler-RT as part of an
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operating system distribution, a toolchain or similar shipping vehicules. If you
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are a user merely trying to use Compiler-RT in your program, you most likely want to
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refer to your vendor's documentation, or to the general documentation for using
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LLVM, Clang, the various santizers, etc.
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CMake Options
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=============
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Here are some of the CMake variables that are used often, along with a
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brief explanation and LLVM-specific notes. For full documentation, check the
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CMake docs or execute ``cmake --help-variable VARIABLE_NAME``.
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**CMAKE_BUILD_TYPE**:STRING
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Sets the build type for ``make`` based generators. Possible values are
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Release, Debug, RelWithDebInfo and MinSizeRel. On systems like Visual Studio
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the user sets the build type with the IDE settings.
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**CMAKE_INSTALL_PREFIX**:PATH
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Path where LLVM will be installed if "make install" is invoked or the
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"INSTALL" target is built.
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**CMAKE_CXX_COMPILER**:STRING
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The C++ compiler to use when building and testing Compiler-RT.
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.. _compiler-rt-specific options:
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Compiler-RT specific options
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-----------------------
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.. option:: COMPILER_RT_INSTALL_PATH:PATH
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**Default**: ```` (empty relative path)
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Prefix for directories where built Compiler-RT artifacts should be installed.
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Can be an absolute path, like the default empty string, in which case it is
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relative ``CMAKE_INSTALL_PREFIX``. If setting a relative path, make sure to
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include the ``:PATH`` with your ``-D``, i.e. use
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``-DCOMPILER_RT_INSTALL_PATH:PATH=...`` not
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``-DCOMPILER_RT_INSTALL_PATH=...``, otherwise CMake will convert the
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path to an absolute path.
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.. option:: COMPILER_RT_INSTALL_LIBRARY_DIR:PATH
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**Default**: ``lib``
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Path where built Compiler-RT libraries should be installed. If a relative
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path, relative to ``COMPILER_RT_INSTALL_PATH``.
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.. option:: COMPILER_RT_INSTALL_BINARY_DIR:PATH
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**Default**: ``bin``
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Path where built Compiler-RT executables should be installed. If a relative
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path, relative to ``COMPILER_RT_INSTALL_PATH``.
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.. option:: COMPILER_RT_INSTALL_INCLUDE_DIR:PATH
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**Default**: ``include``
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Path where Compiler-RT headers should be installed. If a relative
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path, relative to ``COMPILER_RT_INSTALL_PATH``.
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.. option:: COMPILER_RT_INSTALL_DATA_DIR:PATH
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**Default**: ``share``
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Path where Compiler-RT data should be installed. If a relative
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path, relative to ``COMPILER_RT_INSTALL_PATH``.
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.. _LLVM-specific variables:
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LLVM-specific options
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---------------------
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.. option:: LLVM_LIBDIR_SUFFIX:STRING
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Extra suffix to append to the directory where libraries are to be
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installed. On a 64-bit architecture, one could use ``-DLLVM_LIBDIR_SUFFIX=64``
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to install libraries to ``/usr/lib64``.
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