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87 lines
2.6 KiB
Plaintext
87 lines
2.6 KiB
Plaintext
=pod
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=head1 NAME
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llvm-build - LLVM Project Build Utility
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=head1 SYNOPSIS
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B<llvm-build> [I<options>]
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=head1 DESCRIPTION
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B<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, B<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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=head1 OPTIONS
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=over
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=item B<-h>, B<--help>
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Print the builtin program help.
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=item B<--source-root>=I<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 B<llvm-build> script itself.
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=item B<--print-tree>
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Print the component tree for the project.
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=item B<--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 L<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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=item B<--write-llvmbuild>
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Write out new I<LLVMBuild.txt> files based on the loaded components. This is
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useful for auto-upgrading the schema of the files. B<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 preceed
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the section names in the I<LLVMBuild> files.
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=item B<--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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=item B<--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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=item B<--llvmbuild-source-root>=I<PATH>
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If given, expect the I<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 B<--write-llvmbuild> to test changes to
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I<LLVMBuild> schema.
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=back
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=head1 EXIT STATUS
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B<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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=head1 AUTHOR
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Maintained by the LLVM Team (L<http://llvm.org/>).
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=cut
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