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103 lines
2.5 KiB
103 lines
2.5 KiB
4 months ago
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llvm-build - LLVM Project Build Utility
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=======================================
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SYNOPSIS
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--------
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**llvm-build** [*options*]
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DESCRIPTION
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-----------
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**llvm-build** is a tool for working with LLVM projects that use the LLVMBuild
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system for describing their components.
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At heart, **llvm-build** is responsible for loading, verifying, and manipulating
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the project's component data. The tool is primarily designed for use in
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implementing build systems and tools which need access to the project structure
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information.
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OPTIONS
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-------
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**-h**, **--help**
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Print the builtin program help.
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**--source-root**\ =\ *PATH*
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If given, load the project at the given source root path. If this option is not
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given, the location of the project sources will be inferred from the location of
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the **llvm-build** script itself.
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**--print-tree**
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Print the component tree for the project.
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**--write-library-table**
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Write out the C++ fragment which defines the components, library names, and
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required libraries. This C++ fragment is built into llvm-config|llvm-config
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in order to provide clients with the list of required libraries for arbitrary
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component combinations.
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**--write-llvmbuild**
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Write out new *LLVMBuild.txt* files based on the loaded components. This is
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useful for auto-upgrading the schema of the files. **llvm-build** will try to a
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limited extent to preserve the comments which were written in the original
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source file, although at this time it only preserves block comments that precede
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the section names in the *LLVMBuild* files.
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**--write-cmake-fragment**
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Write out the LLVMBuild in the form of a CMake fragment, so it can easily be
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consumed by the CMake based build system. The exact contents and format of this
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file are closely tied to how LLVMBuild is integrated with CMake, see LLVM's
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top-level CMakeLists.txt.
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**--write-make-fragment**
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Write out the LLVMBuild in the form of a Makefile fragment, so it can easily be
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consumed by a Make based build system. The exact contents and format of this
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file are closely tied to how LLVMBuild is integrated with the Makefiles, see
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LLVM's Makefile.rules.
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**--llvmbuild-source-root**\ =\ *PATH*
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If given, expect the *LLVMBuild* files for the project to be rooted at the
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given path, instead of inside the source tree itself. This option is primarily
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designed for use in conjunction with **--write-llvmbuild** to test changes to
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*LLVMBuild* schema.
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EXIT STATUS
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-----------
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**llvm-build** exits with 0 if operation was successful. Otherwise, it will exist
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with a non-zero value.
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