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Reid Spencercbadf802004-11-01 09:21:32 +0000[diff] [blame]1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]2<html>
3<head>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]4 <title>Using The LLVM Libraries</title>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]5 <link rel="stylesheet" href="llvm.css" type="text/css">
6</head>
7<body>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]8<div class="doc_title">Using The LLVM Libraries</div>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]9<ol>
10 <li><a href="#abstract">Abstract</a></li>
11 <li><a href="#introduction">Introduction</a></li>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]12 <li><a href="#descriptions">Library Descriptions</a></li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]13 <li><a href="#dependencies">Library Dependencies</a></li>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]14 <li><a href="#rot">Linkage Rules Of Thumb</a>
15 <ol>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]16 <li><a href="#always">Always link LLVMCore, LLVMSupport, LLVMSystem</a>
17 <li><a href="#onlyone">Never link both archive and re-linked</a>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]18 </ol>
19 </li>
20</ol>
Chris Lattner7911ce22004-05-23 21:07:27 +0000[diff] [blame]21
22<div class="doc_author">
23 <p>Written by <a href="mailto:rspencer@x10sys.com">Reid Spencer</a></p>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]24</div>
Chris Lattner7911ce22004-05-23 21:07:27 +0000[diff] [blame]25
Tanya Lattner2b873622006-04-20 04:57:19 +0000[diff] [blame]26<p class="doc_warning">Warning: This document is out of date, please see <a href="CommandGuide/html/llvm-config.html">llvm-config</a> for more information.</p>
Tanya Lattnerd006d3a2006-04-20 04:55:50 +0000[diff] [blame]27
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]28<!-- ======================================================================= -->
29<div class="doc_section"><a name="abstract">Abstract</a></div>
30<div class="doc_text">
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]31 <p>Amongst other things, LLVM is a toolkit for building compilers, linkers,
32 runtime executives, virtual machines, and other program execution related
33 tools. In addition to the LLVM tool set, the functionality of LLVM is
34 available through a set of libraries. To use LLVM as a toolkit for
35 constructing tools, a developer needs to understand what is contained in the
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]36 various libraries, what they depend on, and how to use them. Fortunately,
37 there is a tool, <tt>llvm-config</tt> to aid with this. This document
38 describes the contents of the libraries and how to use <tt>llvm-config</tt>
39 to generate command line options.
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]40</p>
41</div>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]42
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]43<!-- ======================================================================= -->
44<div class="doc_section"> <a name="introduction">Introduction</a></div>
45<div class="doc_text">
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]46 <p>If you're writing a compiler, virtual machine, or any other utility based
47 on LLVM, you'll need to figure out which of the many libraries files you will
48 need to link with to be successful. An understanding of the contents of these
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]49 libraries will be useful in coming up with an optimal specification for the
50 libraries to link with. The purpose of this document is to reduce some of
51 the trial and error that the author experienced in using LLVM.</p>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]52 <p>LLVM produces two types of libraries: archives (ending in <tt>.a</tt>) and
53 objects (ending in <tt>.o</tt>). However, both are libraries. Libraries ending
54 in <tt>.o</tt> are known as re-linked libraries because they contain all the
55 compilation units of the library linked together as a single <tt>.o</tt> file.
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]56 Furthermore, several of the libraries have <em>both</em> forms of library. The
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]57 re-linked libraries are used whenever you want to include all symbols from the
58 library. The archive libraries are used whenever you want to only resolve
59 outstanding symbols at that point in the link without including everything in
60 the library. </p>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]61 <p>If you're using the LLVM Makefile system to link your tools,you will use
62 the <tt>LLVMLIBS</tt> make variable.
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]63 (see the <a href="MakefileGuide.html#LLVMLIBS">Makefile Guide</a> for
64 details). This variable specifies which LLVM libraries to link into your tool
65 and the order in which they will be linked. You specify re-linked libraries by
66 naming the library without a suffix. You specify archive libraries by naming
67 the library with a <tt>.a</tt> suffix but without the <tt>lib</tt> prefix. The
68 order in which the libraries appear in the <tt>LLVMLIBS</tt> variable
69 definition is the order in which they will be linked. Getting this order
70 correct for your tool can sometimes be challenging.
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]71</div>
72<!-- ======================================================================= -->
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]73<div class="doc_section"><a name="descriptions"></a>Library Descriptions</div>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]74<div class="doc_text">
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]75 <p>The table below categorizes each library
76<table style="text-align:left">
77 <tr><th>Library</th><th>Forms</th><th>Description</th></tr>
Reid Spencer0a4e8b32004-11-01 09:22:49 +0000[diff] [blame]78 <tr><th colspan="3">Core Libraries</th></tr>
Reid Spencer139e1662004-12-31 00:13:14 +0000[diff] [blame]79 <tr><td>LLVMArchive</td><td><tt>.a</tt></td>
80 <td>LLVM archive reading and writing</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]81 <tr><td>LLVMAsmParser</td><td><tt>.a</tt></td>
Reid Spencer139e1662004-12-31 00:13:14 +0000[diff] [blame]82 <td>LLVM assembly parsing</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]83 <tr><td>LLVMBCReader</td><td><tt>.a</tt></td>
Gabor Greif04367bf2007-07-06 22:07:22 +0000[diff] [blame]84 <td>LLVM bitcode reading</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]85 <tr><td>LLVMBCWriter</td><td><tt>.a</tt></td>
Gabor Greif04367bf2007-07-06 22:07:22 +0000[diff] [blame]86 <td>LLVM bitcode writing</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]87 <tr><td>LLVMCore</td><td><tt>.a</tt></td>
Reid Spencer139e1662004-12-31 00:13:14 +0000[diff] [blame]88 <td>LLVM core intermediate representation</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]89 <tr><td>LLVMDebugger</td><td><tt>.a</tt></td>
Reid Spencer139e1662004-12-31 00:13:14 +0000[diff] [blame]90 <td>Source level debugging support</td></tr>
91 <tr><td>LLVMLinker</td><td><tt>.a</tt></td>
Gabor Greif04367bf2007-07-06 22:07:22 +0000[diff] [blame]92 <td>Bitcode and archive linking interface</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]93 <tr><td>LLVMSupport</td><td><tt>.a</tt></td>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]94 <td>General support utilities</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]95 <tr><td>LLVMSystem</td><td><tt>.a</tt></td>
Reid Spencer139e1662004-12-31 00:13:14 +0000[diff] [blame]96 <td>Operating system abstraction layer</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]97 <tr><td>LLVMbzip2</td><td><tt>.a</tt></td>
98 <td>BZip2 compression library</td></tr>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]99
Reid Spencer0a4e8b32004-11-01 09:22:49 +0000[diff] [blame]100 <tr><th colspan="3">Analysis Libraries</th></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]101 <tr><td>LLVMAnalysis</td><td><tt>.a</tt></td>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]102 <td>Various analysis passes.</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]103 <tr><td>LLVMDataStructure</td><td><tt>.o</tt></td>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]104 <td>Data structure analysis passes.</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]105 <tr><td>LLVMipa</td><td><tt>.a</tt></td>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]106 <td>Inter-procedural analysis passes.</td></tr>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]107
Reid Spencer0a4e8b32004-11-01 09:22:49 +0000[diff] [blame]108 <tr><th colspan="3">Transformation Libraries</th></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]109 <tr><td>LLVMInstrumentation</td><td><tt>.a</tt></td>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]110 <td>Instrumentation passes.</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]111 <tr><td>LLVMipo</td><td><tt>.a</tt></td>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]112 <td>All inter-procedural optimization passes.</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]113 <tr><td>LLVMScalarOpts</td><td><tt>.a</tt></td>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]114 <td>All scalar optimization passes.</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]115 <tr><td>LLVMTransformUtils</td><td><tt>.a</tt></td>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]116 <td>Transformation utilities used by many passes.</td></tr>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]117
Reid Spencer0a4e8b32004-11-01 09:22:49 +0000[diff] [blame]118 <tr><th colspan="3">Code Generation Libraries </th></tr>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]119 <tr><td>LLVMCodeGen</td><td><tt>.o</tt></td>
120 <td>Native code generation infrastructure</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]121 <tr><td>LLVMSelectionDAG</td><td><tt>.o</tt></td>
122 <td>Aggressive instruction selector for directed acyclic graphs</td></tr>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]123
Reid Spencer0a4e8b32004-11-01 09:22:49 +0000[diff] [blame]124 <tr><th colspan="3">Target Libraries</th></tr>
Reid Spencerd42037a2006-05-13 02:22:01 +0000[diff] [blame]125 <tr><td>LLVMAlpha</td><td><tt>.o</tt></td>
126 <td>Code generation for Alpha architecture</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]127 <tr><td>LLVMARM</td><td><tt>.o</tt></td>
128 <td>Code generation for ARM architecture</td></tr>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]129 <tr><td>LLVMCBackend</td><td><tt>.o</tt></td>
130 <td>'C' language code generator.</td></tr>
131 <tr><td>LLVMPowerPC</td><td><tt>.o</tt></td>
Reid Spencerd42037a2006-05-13 02:22:01 +0000[diff] [blame]132 <td>Code generation for PowerPC architecture</td></tr>
Chris Lattner029e8442006-02-05 06:40:12 +0000[diff] [blame]133 <tr><td>LLVMSparc</td><td><tt>.o</tt></td>
Reid Spencerd42037a2006-05-13 02:22:01 +0000[diff] [blame]134 <td>Code generation for Sparc architecture</td></tr>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]135 <tr><td>LLVMTarget</td><td><tt>.a</tt></td>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]136 <td>Generic code generation utilities.</td></tr>
137 <tr><td>LLVMX86</td><td><tt>.o</tt></td>
Reid Spencerd42037a2006-05-13 02:22:01 +0000[diff] [blame]138 <td>Code generation for Intel x86 architecture</td></tr>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]139
Reid Spencer0a4e8b32004-11-01 09:22:49 +0000[diff] [blame]140 <tr><th colspan="3">Runtime Libraries</th></tr>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]141 <tr><td>LLVMInterpreter</td><td><tt>.o</tt></td>
Gabor Greif04367bf2007-07-06 22:07:22 +0000[diff] [blame]142 <td>Bitcode Interpreter</td></tr>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]143 <tr><td>LLVMJIT</td><td><tt>.o</tt></td>
Gabor Greif04367bf2007-07-06 22:07:22 +0000[diff] [blame]144 <td>Bitcode JIT Compiler</td></tr>
Reid Spencer41482662004-10-31 23:24:31 +0000[diff] [blame]145 <tr><td>LLVMExecutionEngine</td><td><tt>.o</tt></td>
146 <td>Virtual machine engine</td></tr>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]147</table>
148</div>
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]149
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]150<!-- ======================================================================= -->
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]151<div class="doc_section"><a name="dependencies"></a>Using llvm-config</div>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]152<div class="doc_text">
Reid Spencer704e81f2006-08-01 16:23:54 +0000[diff] [blame]153 <p>The <tt>llvm-config</tt> tool is a perl script that produces on its output
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]154 various kinds of information. For example, the source or object directories
155 used to build LLVM can be accessed by passing options to <tt>llvm-config</tt>.
156 For complete details on this tool, please see the
157 <a href="CommandGuide/html/llvm-config.html">manual page</a>.</p>
158 <p>To understand the relationships between libraries, the <tt>llvm-config</tt>
159 can be very useful. If all you know is that you want certain libraries to
160 be available, you can generate the complete set of libraries to link with
161 using one of four options, as below:</p>
162 <ol>
163 <li><tt>--ldflags</tt>. This generates the command line options necessary to
164 be passed to the <tt>ld</tt> tool in order to link with LLVM. Most notably,
165 the <tt>-L</tt> option is provided to specify a library search directory
Reid Spencer704e81f2006-08-01 16:23:54 +0000[diff] [blame]166 that contains the LLVM libraries.</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]167 <li><tt>--libs</tt>. This generates command line options suitable for
168 use with a gcc-style linker. That is, libraries are given with a -l option
169 and object files are given with a full path.</li>
170 <li><tt>--libnames</tt>. This generates a list of just the library file
171 names. If you know the directory in which these files reside (see --ldflags)
172 then you can find the libraries there.</li>
Reid Spencer704e81f2006-08-01 16:23:54 +0000[diff] [blame]173 <li><tt>--libfiles</tt>. This generates the full path names of the
174 LLVM library files.</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]175 </ol>
176 <p>If you wish to delve further into how <tt>llvm-config</tt> generates the
177 correct order (based on library dependencies), please see the tool named
178 <tt>GenLibDeps.pl</tt> in the <tt>utils</tt> source directory of LLVM.</p>
179
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]180 <!-- =======NOTE: =========================================================-->
Reid Spencer43ff9002005-01-03 05:46:46 +0000[diff] [blame]181 <!-- === The following graphs and <dl> list are generated automatically ===-->
182 <!-- === by the util named GenLibDeps.pl in the llvm/utils directory. ===-->
183 <!-- === This should be updated whenever new libraries are added, ===-->
184 <!-- === removed, or changed ===-->
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]185 <!-- =======NOTE: =========================================================-->
Reid Spencer43ff9002005-01-03 05:46:46 +0000[diff] [blame]186 <h2>Dependency Relationships Of Libraries</h2>
187 <p>This graph shows the dependency of archive libraries on other archive
188 libraries or objects. Where a library has both archive and object forms, only
189 the archive form is shown.</p>
190 <img src="img/libdeps.gif" alt="Library Dependencies"/>
191 <h2>Dependency Relationships Of Object Files</h2>
192 <p>This graph shows the dependency of object files on archive libraries or
193 other objects. Where a library has both object and archive forms, only the
194 dependency to the archive form is shown.</p>
195 <img src="img/objdeps.gif" alt="Object File Dependencies"/>
196 <p>The following list shows the dependency relationships between libraries in
197 textual form. The information is the same as shown on the graphs but arranged
198 alphabetically.</p>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]199<dl>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]200 <dt><b>libLLVMAnalysis.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]201 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]202 <li>libLLVMSupport.a</li>
203 <li>libLLVMSystem.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]204 <li>libLLVMTarget.a</li>
205 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]206 <dt><b>libLLVMArchive.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]207 <li>libLLVMBCReader.a</li>
208 <li>libLLVMCore.a</li>
209 <li>libLLVMSupport.a</li>
210 <li>libLLVMSystem.a</li>
211 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]212 <dt><b>libLLVMAsmParser.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]213 <li>libLLVMCore.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]214 <li>libLLVMSystem.a</li>
215 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]216 <dt><b>libLLVMBCReader.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]217 <li>libLLVMCore.a</li>
218 <li>libLLVMSupport.a</li>
219 <li>libLLVMSystem.a</li>
220 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]221 <dt><b>libLLVMBCWriter.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]222 <li>libLLVMCore.a</li>
223 <li>libLLVMSupport.a</li>
224 <li>libLLVMSystem.a</li>
225 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]226 <dt><b>libLLVMCodeGen.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]227 <li>libLLVMAnalysis.a</li>
228 <li>libLLVMCore.a</li>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]229 <li>libLLVMScalarOpts.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]230 <li>libLLVMSupport.a</li>
231 <li>libLLVMSystem.a</li>
232 <li>libLLVMTarget.a</li>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]233 <li>libLLVMTransformUtils.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]234 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]235 <dt><b>libLLVMCore.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]236 <li>libLLVMSupport.a</li>
237 <li>libLLVMSystem.a</li>
238 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]239 <dt><b>libLLVMDebugger.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]240 <li>libLLVMBCReader.a</li>
241 <li>libLLVMCore.a</li>
242 <li>libLLVMSupport.a</li>
243 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]244 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]245 <dt><b>libLLVMInstrumentation.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]246 <li>libLLVMCore.a</li>
Reid Spencerd42037a2006-05-13 02:22:01 +0000[diff] [blame]247 <li>libLLVMScalarOpts.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]248 <li>libLLVMSupport.a</li>
249 <li>libLLVMTransformUtils.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]250 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]251 <dt><b>libLLVMLinker.a</b></dt><dd><ul>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]252 <li>libLLVMArchive.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]253 <li>libLLVMBCReader.a</li>
254 <li>libLLVMCore.a</li>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]255 <li>libLLVMSupport.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]256 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]257 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]258 <dt><b>libLLVMScalarOpts.a</b></dt><dd><ul>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]259 <li>libLLVMAnalysis.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]260 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]261 <li>libLLVMSupport.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]262 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]263 <li>libLLVMTarget.a</li>
264 <li>libLLVMTransformUtils.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]265 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]266 <dt><b>libLLVMSelectionDAG.a</b></dt><dd><ul>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]267 <li>libLLVMAnalysis.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]268 <li>libLLVMCodeGen.a</li>
269 <li>libLLVMCore.a</li>
270 <li>libLLVMSupport.a</li>
271 <li>libLLVMSystem.a</li>
272 <li>libLLVMTarget.a</li>
273 <li>libLLVMTransformUtils.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]274 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]275 <dt><b>libLLVMSupport.a</b></dt><dd><ul>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]276 <li>libLLVMSystem.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]277 <li>libLLVMbzip2.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]278 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]279 <dt><b>libLLVMSystem.a</b></dt><dd><ul>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]280 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]281 <dt><b>libLLVMTarget.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]282 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]283 <li>libLLVMSupport.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]284 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]285 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]286 <dt><b>libLLVMTransformUtils.a</b></dt><dd><ul>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]287 <li>libLLVMAnalysis.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]288 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]289 <li>libLLVMSupport.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]290 <li>libLLVMSystem.a</li>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]291 <li>libLLVMTarget.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]292 <li>libLLVMipa.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]293 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]294 <dt><b>libLLVMbzip2.a</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]295 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]296 <dt><b>libLLVMipa.a</b></dt><dd><ul>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]297 <li>libLLVMAnalysis.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]298 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]299 <li>libLLVMSupport.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]300 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]301 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]302 <dt><b>libLLVMipo.a</b></dt><dd><ul>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]303 <li>libLLVMAnalysis.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]304 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]305 <li>libLLVMSupport.a</li>
306 <li>libLLVMSystem.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]307 <li>libLLVMTarget.a</li>
308 <li>libLLVMTransformUtils.a</li>
309 <li>libLLVMipa.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]310 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]311 <dt><b>libLLVMlto.a</b></dt><dd><ul>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]312 <li>libLLVMAnalysis.a</li>
313 <li>libLLVMBCReader.a</li>
314 <li>libLLVMBCWriter.a</li>
315 <li>libLLVMCore.a</li>
316 <li>libLLVMLinker.a</li>
317 <li>libLLVMScalarOpts.a</li>
318 <li>libLLVMSupport.a</li>
319 <li>libLLVMSystem.a</li>
320 <li>libLLVMTarget.a</li>
321 <li>libLLVMipa.a</li>
322 <li>libLLVMipo.a</li>
323 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]324 <dt><b>LLVMARM.o</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]325 <li>libLLVMCodeGen.a</li>
326 <li>libLLVMCore.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]327 <li>libLLVMSelectionDAG.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]328 <li>libLLVMSupport.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]329 <li>libLLVMSystem.a</li>
330 <li>libLLVMTarget.a</li>
331 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]332 <dt><b>LLVMAlpha.o</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]333 <li>libLLVMCodeGen.a</li>
334 <li>libLLVMCore.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]335 <li>libLLVMSelectionDAG.a</li>
336 <li>libLLVMSupport.a</li>
337 <li>libLLVMSystem.a</li>
338 <li>libLLVMTarget.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]339 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]340 <dt><b>LLVMCBackend.o</b></dt><dd><ul>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]341 <li>libLLVMAnalysis.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]342 <li>libLLVMCodeGen.a</li>
343 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]344 <li>libLLVMScalarOpts.a</li>
345 <li>libLLVMSupport.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]346 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]347 <li>libLLVMTarget.a</li>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]348 <li>libLLVMTransformUtils.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]349 <li>libLLVMipa.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]350 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]351 <dt><b>LLVMExecutionEngine.o</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]352 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]353 <li>libLLVMSupport.a</li>
354 <li>libLLVMSystem.a</li>
355 <li>libLLVMTarget.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]356 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]357 <dt><b>LLVMInterpreter.o</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]358 <li>LLVMExecutionEngine.o</li>
Reid Spencer006c6872007-02-04 00:17:35 +0000[diff] [blame]359 <li>libLLVMCodeGen.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]360 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]361 <li>libLLVMSupport.a</li>
362 <li>libLLVMSystem.a</li>
363 <li>libLLVMTarget.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]364 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]365 <dt><b>LLVMJIT.o</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]366 <li>LLVMExecutionEngine.o</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]367 <li>libLLVMCore.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]368 <li>libLLVMSupport.a</li>
369 <li>libLLVMSystem.a</li>
370 <li>libLLVMTarget.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]371 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]372 <dt><b>LLVMPowerPC.o</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]373 <li>libLLVMCodeGen.a</li>
374 <li>libLLVMCore.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]375 <li>libLLVMSelectionDAG.a</li>
Reid Spencerd42037a2006-05-13 02:22:01 +0000[diff] [blame]376 <li>libLLVMSupport.a</li>
377 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]378 <li>libLLVMTarget.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]379 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]380 <dt><b>LLVMSparc.o</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]381 <li>libLLVMCodeGen.a</li>
382 <li>libLLVMCore.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]383 <li>libLLVMSelectionDAG.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]384 <li>libLLVMSupport.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]385 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]386 <li>libLLVMTarget.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]387 </ul></dd>
Dan Gohman364a39f2008-10-14 17:00:38 +0000[diff] [blame]388 <dt><b>LLVMX86.o</b></dt><dd><ul>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]389 <li>libLLVMCodeGen.a</li>
390 <li>libLLVMCore.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]391 <li>libLLVMSelectionDAG.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]392 <li>libLLVMSupport.a</li>
Reid Spencere131ec92006-08-01 07:32:01 +0000[diff] [blame]393 <li>libLLVMSystem.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]394 <li>libLLVMTarget.a</li>
Reid Spencere0f33ae2004-12-30 23:12:04 +0000[diff] [blame]395 </ul></dd>
396</dl>
397</div>
398
399<!-- ======================================================================= -->
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]400<div class="doc_section"><a name="rot">Linkage Rules Of Thumb</a></div>
401<div class="doc_text">
402 <p>This section contains various "rules of thumb" about what files you
403 should link into your programs.</p>
404</div>
405<!-- ======================================================================= -->
Misha Brukman6fb51662004-11-08 00:22:22 +0000[diff] [blame]406<div class="doc_subsection"><a name="always">Always Link LLVMCore, LLVMSupport,
407 and LLVMSystem</a></div>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]408<div class="doc_text">
Reid Spencer52afa7e2004-11-08 00:26:32 +0000[diff] [blame]409 <p>No matter what you do with LLVM, the last three entries in the value of
410 your LLVMLIBS make variable should always be:
411 <tt>LLVMCore LLVMSupport.a LLVMSystem.a</tt>. There are no <tt>LLVM</tt>
412 programs that don't depend on these three.</p>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]413</div>
414<!-- ======================================================================= -->
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]415<div class="doc_subsection"><a name="onlyone">Never link both archive and
416 re-linked library</a></div>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]417<div class="doc_text">
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]418 <p>There is never any point to linking both the re-linked (<tt>.o</tt>) and
419 the archive (<tt>.a</tt>) versions of a library. Since the re-linked version
420 includes the entire library, the archive version will not resolve any symbols.
Reid Spencer347e2882004-11-08 00:24:43 +0000[diff] [blame]421 You could even end up with link error if you place the archive version before
Reid Spencer341d7142004-10-31 23:00:25 +0000[diff] [blame]422 the re-linked version on the linker's command line.</p>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]423</div>
424<!-- ======================================================================= -->
425<hr>
426<div class="doc_footer">
Reid Spencerbd722412004-11-01 09:19:53 +0000[diff] [blame]427<address>
428 <a href="http://jigsaw.w3.org/css-validator/check/referer"><img
Misha Brukman44408702008-12-11 17:34:48 +0000[diff] [blame]429 src="http://jigsaw.w3.org/css-validator/images/vcss-blue" alt="Valid CSS"/></a>
Reid Spencerbd722412004-11-01 09:19:53 +0000[diff] [blame]430 <a href="http://validator.w3.org/check/referer"><img
Misha Brukmanf00ddb02008-12-11 18:23:24 +0000[diff] [blame]431 src="http://www.w3.org/Icons/valid-html401-blue" alt="Valid HTML 4.01"></a>
Reid Spencerbd722412004-11-01 09:19:53 +0000[diff] [blame]432 <a href="mailto:rspencer@x10sys.com">Reid Spencer</a>
433</address>
Reid Spencer05fe4b02006-03-14 05:39:39 +0000[diff] [blame]434<a href="http://llvm.org">The LLVM Compiler Infrastructure</a>
Chris Lattner61757352004-02-27 06:28:34 +0000[diff] [blame]435<br>Last modified: $Date$ </div>
436</body>
437</html>
438<!-- vim: sw=2 ts=2 ai
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