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57 lines
2.9 KiB
ReStructuredText
.. _contributing:
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================================
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Contributing to the libc Project
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================================
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LLVM's libc is being developed as part of the LLVM project so contributions
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to the libc project should also follow the general LLVM
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`contribution guidelines <https://llvm.org/docs/Contributing.html>`_. Below is
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a list of open projects that one can start with:
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#. **Cleanup code-style** - The libc project follows the general
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`LLVM style <https://llvm.org/docs/CodingStandards.html>`_ but differs in a
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few aspects: We use ``snake_case`` for non-constant variable and function
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names,``CamelCase`` for internal type names (those which are not defined in a
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public header), and ``CAPITILIZED_SNAKE_CASE`` for constants. When we started
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working on the project, we started using the general LLVM style for
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everything. However, for a short period, we switched to the style that is
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currently followed by the `LLD project <https://github.com/llvm/llvm-project/tree/main/lld>`_.
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But, considering that we implement a lot of functions and types whose names
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are prescribed by the standards, we have settled on the style described above.
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However, we have not switched over to this style in all parts of the ``libc``
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directory. So, a simple but mechanical project would be to move the parts
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following the old styles to the new style.
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#. **Integrating with the rest of the LLVM project** - There are two parts to
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this project:
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#. One is about adding CMake facilities to optionally link the libc's overlay
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static archive (see :ref:`overlay_mode`) with other LLVM tools/executables.
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#. The other is about putting plumbing in place to release the overlay static
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archive (see :ref:`overlay_mode`) as part of the LLVM binary releases.
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#. **Implement Linux syscall wrappers** - A large portion of the POSIX API can
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be implemented as syscall wrappers on Linux. A good number have already been
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implemented but many more are yet to be implemented. So, a project of medium
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complexity would be to implement syscall wrappers which have not yet been
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implemented.
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#. **Add a better random number generator** - The current random number
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generator has a very small range. This has to be improved or switched over
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to a fast random number generator with a large range.
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#. **Update the clang-tidy lint rules and use them in the build and/or CI** -
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Currently, the :ref:`clang_tidy_checks` have gone stale and are mostly unused
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by the developers and on the CI builders. This project is about updating
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them and reintegrating them back with the build and running them on the
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CI builders.
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#. **double and higher precision math functions** - These are under active
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development but you can take a shot at those not yet implemented. See
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:ref:`math` for more information.
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#. **Contribute a new OS/Architecture port** - You can contribute a new
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operating system or target architecture port. See :ref:`porting` for more
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information.
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