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annotate docs/CommandGuide/llvm-build.rst @ 109:6916f1d3a436

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author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 01 Feb 2016 03:02:03 +0900
parents 95c75e76d11b
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1 llvm-build - LLVM Project Build Utility
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2 =======================================
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5 SYNOPSIS
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6 --------
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9 **llvm-build** [*options*]
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12 DESCRIPTION
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13 -----------
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16 **llvm-build** is a tool for working with LLVM projects that use the LLVMBuild
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17 system for describing their components.
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18
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19 At heart, **llvm-build** is responsible for loading, verifying, and manipulating
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20 the project's component data. The tool is primarily designed for use in
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21 implementing build systems and tools which need access to the project structure
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22 information.
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25 OPTIONS
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26 -------
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29
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30 **-h**, **--help**
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31
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32 Print the builtin program help.
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35
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36 **--source-root**\ =\ *PATH*
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37
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38 If given, load the project at the given source root path. If this option is not
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39 given, the location of the project sources will be inferred from the location of
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40 the **llvm-build** script itself.
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41
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43
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44 **--print-tree**
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45
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46 Print the component tree for the project.
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49
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50 **--write-library-table**
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51
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52 Write out the C++ fragment which defines the components, library names, and
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53 required libraries. This C++ fragment is built into llvm-config|llvm-config
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54 in order to provide clients with the list of required libraries for arbitrary
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55 component combinations.
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58
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59 **--write-llvmbuild**
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60
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61 Write out new *LLVMBuild.txt* files based on the loaded components. This is
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62 useful for auto-upgrading the schema of the files. **llvm-build** will try to a
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63 limited extent to preserve the comments which were written in the original
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64 source file, although at this time it only preserves block comments that precede
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65 the section names in the *LLVMBuild* files.
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66
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68
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69 **--write-cmake-fragment**
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70
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71 Write out the LLVMBuild in the form of a CMake fragment, so it can easily be
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72 consumed by the CMake based build system. The exact contents and format of this
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73 file are closely tied to how LLVMBuild is integrated with CMake, see LLVM's
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74 top-level CMakeLists.txt.
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78 **--write-make-fragment**
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79
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80 Write out the LLVMBuild in the form of a Makefile fragment, so it can easily be
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81 consumed by a Make based build system. The exact contents and format of this
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82 file are closely tied to how LLVMBuild is integrated with the Makefiles, see
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83 LLVM's Makefile.rules.
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87 **--llvmbuild-source-root**\ =\ *PATH*
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88
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89 If given, expect the *LLVMBuild* files for the project to be rooted at the
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90 given path, instead of inside the source tree itself. This option is primarily
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91 designed for use in conjunction with **--write-llvmbuild** to test changes to
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92 *LLVMBuild* schema.
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97 EXIT STATUS
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98 -----------
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99
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100
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101 **llvm-build** exits with 0 if operation was successful. Otherwise, it will exist
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102 with a non-zero value.