1LLVM-BUILD(1)                        LLVM                        LLVM-BUILD(1)
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NAME

6       llvm-build - LLVM Project Build Utility
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SYNOPSIS

9       llvm-build [options]
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DESCRIPTION

12       llvm-build  is a tool for working with LLVM projects that use the LLVM‐
13       Build system for describing their components.
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15       At heart, llvm-build is responsible for loading, verifying, and manipu‐
16       lating the project's component data. The tool is primarily designed for
17       use in implementing build systems and tools which need  access  to  the
18       project structure information.
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OPTIONS

21       -h, --help
22          Print the builtin program help.
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24       --source-root=PATH
25          If  given,  load  the project at the given source root path. If this
26          option is not given, the location of the project sources will be in‐
27          ferred from the location of the llvm-build script itself.
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29       --print-tree
30          Print the component tree for the project.
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32       --write-library-table
33          Write  out  the  C++  fragment which defines the components, library
34          names, and required libraries.  This  C++  fragment  is  built  into
35          llvm-config|llvm-config in order to provide clients with the list of
36          required libraries for arbitrary component combinations.
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38       --write-llvmbuild
39          Write out new LLVMBuild.txt files based on  the  loaded  components.
40          This   is  useful  for  auto-upgrading  the  schema  of  the  files.
41          llvm-build will try to a limited extent  to  preserve  the  comments
42          which  were  written  in  the original source file, although at this
43          time it only preserves block comments that precede the section names
44          in the LLVMBuild files.
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46       --write-cmake-fragment
47          Write  out  the LLVMBuild in the form of a CMake fragment, so it can
48          easily be consumed by the CMake based build system. The  exact  con‐
49          tents  and  format of this file are closely tied to how LLVMBuild is
50          integrated with CMake, see LLVM's top-level CMakeLists.txt.
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52       --write-make-fragment
53          Write out the LLVMBuild in the form of a Makefile  fragment,  so  it
54          can  easily be consumed by a Make based build system. The exact con‐
55          tents and format of this file are closely tied to how  LLVMBuild  is
56          integrated with the Makefiles, see LLVM's Makefile.rules.
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58       --llvmbuild-source-root=PATH
59          If given, expect the LLVMBuild files for the project to be rooted at
60          the given path, instead of inside the source tree itself.  This  op‐
61          tion is primarily designed for use in conjunction with --write-llvm‐
62          build to test changes to LLVMBuild schema.
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EXIT STATUS

65       llvm-build exits with 0 if operation was successful. Otherwise, it will
66       exist with a non-zero value.
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AUTHOR

69       Maintained by the LLVM Team (https://llvm.org/).
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72       2003-2021, LLVM Project
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7711                                2021-03-23                     LLVM-BUILD(1)
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