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Reid Spencer271fe882004-11-01 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 Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]2<html>
3<head>
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]4 <title>Using The LLVM Libraries</title>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]5 <link rel="stylesheet" href="llvm.css" type="text/css">
6</head>
7<body>
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]8<div class="doc_title">Using The LLVM Libraries</div>
Chris Lattner524ee2b2004-02-27 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 Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]12 <li><a href="#descriptions">Library Descriptions</a></li>
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]13 <li><a href="#dependencies">Library Dependencies</a></li>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]14 <li><a href="#rot">Linkage Rules Of Thumb</a>
15 <ol>
Reid Spencerb1454872004-10-31 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 Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]18 </ol>
19 </li>
20</ol>
Chris Lattner020e1fc2004-05-23 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 Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]24</div>
Chris Lattner020e1fc2004-05-23 21:07:27 +0000[diff] [blame]25
Tanya Lattner011f7352006-04-20 04:55:50 +0000[diff] [blame^]26Warning: This document is out of date, please see <a href="CommandGuide/html/llvm-config.html">llvm-config</a> for more information.
27
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]28<!-- ======================================================================= -->
29<div class="doc_section"><a name="abstract">Abstract</a></div>
30<div class="doc_text">
Reid Spencer0d6d8d02004-10-31 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
36 various libraries, what they depend on, and how to use them. This document
37 describes the contents of the libraries and how and when to use them.
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]38</p>
39</div>
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]40
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]41<!-- ======================================================================= -->
42<div class="doc_section"> <a name="introduction">Introduction</a></div>
43<div class="doc_text">
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]44 <p>If you're writing a compiler, virtual machine, or any other utility based
45 on LLVM, you'll need to figure out which of the many libraries files you will
46 need to link with to be successful. An understanding of the contents of these
47 files and their inter-relationships will be useful in coming up with an optimal
48 specification for the libraries to link with. The purpose of this document is
49 to reduce some of the trial and error that the author experienced in using
50 LLVM.</p>
51 <p>LLVM produces two types of libraries: archives (ending in <tt>.a</tt>) and
52 objects (ending in <tt>.o</tt>). However, both are libraries. Libraries ending
53 in <tt>.o</tt> are known as re-linked libraries because they contain all the
54 compilation units of the library linked together as a single <tt>.o</tt> file.
55 Furthermore, many of the libraries have <em>both</em> forms of library. The
56 re-linked libraries are used whenever you want to include all symbols from the
57 library. The archive libraries are used whenever you want to only resolve
58 outstanding symbols at that point in the link without including everything in
59 the library. </p>
60 <p>When linking your tools, you will use the <tt>LLVMLIBS</tt> make variable.
61 (see the <a href="MakefileGuide.html#LLVMLIBS">Makefile Guide</a> for
62 details). This variable specifies which LLVM libraries to link into your tool
63 and the order in which they will be linked. You specify re-linked libraries by
64 naming the library without a suffix. You specify archive libraries by naming
65 the library with a <tt>.a</tt> suffix but without the <tt>lib</tt> prefix. The
66 order in which the libraries appear in the <tt>LLVMLIBS</tt> variable
67 definition is the order in which they will be linked. Getting this order
68 correct for your tool can sometimes be challenging.
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]69</div>
70<!-- ======================================================================= -->
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]71<div class="doc_section"><a name="descriptions"></a>Library Descriptions</div>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]72<div class="doc_text">
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]73 <p>The table below categorizes each library
74<table style="text-align:left">
75 <tr><th>Library</th><th>Forms</th><th>Description</th></tr>
Reid Spencer7336a6c2004-11-01 09:22:49 +0000[diff] [blame]76 <tr><th colspan="3">Core Libraries</th></tr>
Reid Spencer234dc342004-12-31 00:13:14 +0000[diff] [blame]77 <tr><td>LLVMArchive</td><td><tt>.a</tt></td>
78 <td>LLVM archive reading and writing</td></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]79 <tr><td>LLVMAsmParser</td><td><tt>.o</tt></td>
Reid Spencer234dc342004-12-31 00:13:14 +0000[diff] [blame]80 <td>LLVM assembly parsing</td></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]81 <tr><td>LLVMBCReader</td><td><tt>.o</tt></td>
Reid Spencer234dc342004-12-31 00:13:14 +0000[diff] [blame]82 <td>LLVM bytecode reading</td></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]83 <tr><td>LLVMBCWriter</td><td><tt>.o</tt></td>
Reid Spencer234dc342004-12-31 00:13:14 +0000[diff] [blame]84 <td>LLVM bytecode writing</td></tr>
85 <tr><td>LLVMCore</td><td><tt>.o</tt></td>
86 <td>LLVM core intermediate representation</td></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]87 <tr><td>LLVMDebugger</td><td><tt>.o</tt></td>
Reid Spencer234dc342004-12-31 00:13:14 +0000[diff] [blame]88 <td>Source level debugging support</td></tr>
89 <tr><td>LLVMLinker</td><td><tt>.a</tt></td>
90 <td>Bytecode and archive linking interface</td></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]91 <tr><td>LLVMSupport</td><td><tt>.a .o</tt></td>
92 <td>General support utilities</td></tr>
93 <tr><td>LLVMSystem</td><td><tt>.a .o</tt></td>
Reid Spencer234dc342004-12-31 00:13:14 +0000[diff] [blame]94 <td>Operating system abstraction layer</td></tr>
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]95
Reid Spencer7336a6c2004-11-01 09:22:49 +0000[diff] [blame]96 <tr><th colspan="3">Analysis Libraries</th></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]97 <tr><td>LLVMAnalysis</td><td><tt>.a .o</tt></td>
98 <td>Various analysis passes.</td></tr>
99 <tr><td>LLVMDataStructure</td><td><tt>.a .o</tt></td>
100 <td>Data structure analysis passes.</td></tr>
101 <tr><td>LLVMipa</td><td><tt>.a .o</tt></td>
102 <td>Inter-procedural analysis passes.</td></tr>
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]103
Reid Spencer7336a6c2004-11-01 09:22:49 +0000[diff] [blame]104 <tr><th colspan="3">Transformation Libraries</th></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]105 <tr><td>LLVMInstrumentation</td><td><tt>.a .o</tt></td>
106 <td>Instrumentation passes.</td></tr>
107 <tr><td>LLVMipo</td><td><tt>.a .o</tt></td>
108 <td>All inter-procedural optimization passes.</td></tr>
109 <tr><td>LLVMScalarOpts</td><td><tt>.a .o</tt></td>
110 <td>All scalar optimization passes.</td></tr>
111 <tr><td>LLVMTransforms</td><td><tt>.a .o</tt></td>
112 <td>Uncategorized transformation passes.</td></tr>
113 <tr><td>LLVMTransformUtils</td><td><tt>.a .o</tt></td>
114 <td>Transformation utilities.</td></tr>
115 <tr><td>LLVMProfilePaths</td><td><tt>.o</tt></td>
116 <td>Profile paths for instrumentation.</td></tr>
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]117
Reid Spencer7336a6c2004-11-01 09:22:49 +0000[diff] [blame]118 <tr><th colspan="3">Code Generation Libraries </th></tr>
Reid Spencerb1454872004-10-31 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 Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]121
Reid Spencer7336a6c2004-11-01 09:22:49 +0000[diff] [blame]122 <tr><th colspan="3">Target Libraries</th></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]123 <tr><td>LLVMCBackend</td><td><tt>.o</tt></td>
124 <td>'C' language code generator.</td></tr>
125 <tr><td>LLVMPowerPC</td><td><tt>.o</tt></td>
126 <td>PowerPC code generation backend</td></tr>
127 <tr><td>LLVMSelectionDAG</td><td><tt>.o</tt></td>
Reid Spencer234dc342004-12-31 00:13:14 +0000[diff] [blame]128 <td>Aggressive instruction selector for directed acyclic graphs.</td></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]129 <tr><td>LLVMSkeleton</td><td><tt>.a .o</tt></td>
130 <td>Skeleton for a code generation backend.</td></tr>
Chris Lattnera07b2d52006-02-05 06:40:12 +0000[diff] [blame]131 <tr><td>LLVMSparc</td><td><tt>.o</tt></td>
132 <td>Code generation for Sparc.</td></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]133 <tr><td>LLVMSparcV9</td><td><tt>.o</tt></td>
134 <td>Code generation for SparcV9.</td></tr>
135 <tr><td>LLVMSparcV9RegAlloc</td><td><tt>.a .o</tt></td>
136 <td>Graph-coloring register allocator for SparcV9.</td></tr>
137 <tr><td>LLVMSparcV9InstrSched</td><td><tt>.o</tt></td>
138 <td>Instruction scheduling for SparcV9.</td></tr>
139 <tr><td>LLVMSparcV9LiveVar</td><td><tt>.o</tt></td>
140 <td>Live variable analysis SparcV9.</td></tr>
141 <tr><td>LLVMSparcV9ModuloSched</td><td><tt>.o</tt></td>
142 <td>Modulo scheduling for SparcV9.</td></tr>
143 <tr><td>LLVMTarget</td><td><tt>.a .o</tt></td>
144 <td>Generic code generation utilities.</td></tr>
145 <tr><td>LLVMX86</td><td><tt>.o</tt></td>
146 <td>Intel x86 code generation backend</td></tr>
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]147
Reid Spencer7336a6c2004-11-01 09:22:49 +0000[diff] [blame]148 <tr><th colspan="3">Runtime Libraries</th></tr>
Reid Spencerb1454872004-10-31 23:24:31 +0000[diff] [blame]149 <tr><td>LLVMInterpreter</td><td><tt>.o</tt></td>
150 <td>Bytecode Interpreter</td></tr>
151 <tr><td>LLVMJIT</td><td><tt>.o</tt></td>
152 <td>Bytecode JIT Compiler</td></tr>
153 <tr><td>LLVMExecutionEngine</td><td><tt>.o</tt></td>
154 <td>Virtual machine engine</td></tr>
155 <tr><td>LLVMexecve</td><td><tt>.o</tt></td>
156 <td>execve(2) replacement for llee</td></tr>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]157</table>
158</div>
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]159
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]160<!-- ======================================================================= -->
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]161<div class="doc_section"><a name="dependencies"></a>Library Dependencies</div>
162<div class="doc_text">
Reid Spencerf309b442005-01-03 05:46:46 +0000[diff] [blame]163 <p>Below are two dependency graphs and a list that show the relationships
164 between the various LLVM archive libraries and object files. This information
165 can be automatically generated with the <tt>GenLibDeps.pl</tt> utility found
166 in the <tt>llvm/utils</tt> directory.</p>
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]167 <!-- =======NOTE: =========================================================-->
Reid Spencerf309b442005-01-03 05:46:46 +0000[diff] [blame]168 <!-- === The following graphs and <dl> list are generated automatically ===-->
169 <!-- === by the util named GenLibDeps.pl in the llvm/utils directory. ===-->
170 <!-- === This should be updated whenever new libraries are added, ===-->
171 <!-- === removed, or changed ===-->
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]172 <!-- =======NOTE: =========================================================-->
Reid Spencerf309b442005-01-03 05:46:46 +0000[diff] [blame]173 <h2>Dependency Relationships Of Libraries</h2>
174 <p>This graph shows the dependency of archive libraries on other archive
175 libraries or objects. Where a library has both archive and object forms, only
176 the archive form is shown.</p>
177 <img src="img/libdeps.gif" alt="Library Dependencies"/>
178 <h2>Dependency Relationships Of Object Files</h2>
179 <p>This graph shows the dependency of object files on archive libraries or
180 other objects. Where a library has both object and archive forms, only the
181 dependency to the archive form is shown.</p>
182 <img src="img/objdeps.gif" alt="Object File Dependencies"/>
183 <p>The following list shows the dependency relationships between libraries in
184 textual form. The information is the same as shown on the graphs but arranged
185 alphabetically.</p>
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]186<dl>
187 <dt><b>libLLVMAnalysis.a</b</dt><dd><ul>
188 <li>libLLVMScalarOpts.a</li>
189 <li>libLLVMSupport.a</li>
190 <li>libLLVMTarget.a</li>
191 <li>libLLVMTransformUtils.a</li>
192 <li>LLVMCore.o</li>
193 </ul></dd>
194 <dt><b>libLLVMArchive.a</b</dt><dd><ul>
195 <li>libLLVMSupport.a</li>
196 <li>libLLVMSystem.a</li>
197 <li>LLVMBCReader.o</li>
198 </ul></dd>
199 <dt><b>libLLVMDataStructure.a</b</dt><dd><ul>
200 <li>libLLVMAnalysis.a</li>
201 <li>libLLVMSupport.a</li>
202 <li>libLLVMTarget.a</li>
203 <li>libLLVMTransformUtils.a</li>
204 <li>LLVMCore.o</li>
205 </ul></dd>
206 <dt><b>libLLVMInstrumentation.a</b</dt><dd><ul>
207 <li>libLLVMSupport.a</li>
208 <li>libLLVMTransformUtils.a</li>
209 <li>LLVMCore.o</li>
210 </ul></dd>
211 <dt><b>libLLVMLinker.a</b</dt><dd><ul>
212 <li>libLLVMArchive.a</li>
213 <li>libLLVMSystem.a</li>
214 <li>LLVMBCReader.o</li>
215 <li>LLVMCore.o</li>
216 </ul></dd>
217 <dt><b>libLLVMScalarOpts.a</b</dt><dd><ul>
218 <li>libLLVMAnalysis.a</li>
219 <li>libLLVMSupport.a</li>
220 <li>libLLVMTarget.a</li>
221 <li>libLLVMTransformUtils.a</li>
222 <li>LLVMCore.o</li>
223 </ul></dd>
224 <dt><b>libLLVMSparcV9RegAlloc.a</b</dt><dd><ul>
225 <li>libLLVMAnalysis.a</li>
226 <li>libLLVMSupport.a</li>
227 <li>LLVMCodeGen.o</li>
228 <li>LLVMCore.o</li>
229 <li>LLVMSparcV9LiveVar.o</li>
230 <li>LLVMSparcV9.o</li>
231 </ul></dd>
232 <dt><b>libLLVMSupport.a</b</dt><dd><ul>
233 <li>libLLVMSystem.a</li>
234 <li>LLVMbzip2.o</li>
235 </ul></dd>
Reid Spencerf309b442005-01-03 05:46:46 +0000[diff] [blame]236 <dt><b>libLLVMSystem.a</b</dt><dd></dd>
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]237 <dt><b>libLLVMTarget.a</b</dt><dd><ul>
238 <li>libLLVMSupport.a</li>
239 <li>LLVMCore.o</li>
240 </ul></dd>
241 <dt><b>libLLVMTransformUtils.a</b</dt><dd><ul>
242 <li>libLLVMAnalysis.a</li>
243 <li>libLLVMScalarOpts.a</li>
244 <li>libLLVMSupport.a</li>
245 <li>LLVMCore.o</li>
246 </ul></dd>
247 <dt><b>libLLVMTransforms.a</b</dt><dd><ul>
248 <li>libLLVMAnalysis.a</li>
249 <li>libLLVMSupport.a</li>
250 <li>libLLVMTarget.a</li>
251 <li>libLLVMTransformUtils.a</li>
252 <li>LLVMCore.o</li>
253 </ul></dd>
254 <dt><b>libLLVMipa.a</b</dt><dd><ul>
255 <li>libLLVMAnalysis.a</li>
256 <li>libLLVMSupport.a</li>
257 <li>LLVMCore.o</li>
258 </ul></dd>
259 <dt><b>libLLVMipo.a</b</dt><dd><ul>
260 <li>libLLVMAnalysis.a</li>
261 <li>libLLVMipa.a</li>
262 <li>libLLVMScalarOpts.a</li>
263 <li>libLLVMSupport.a</li>
264 <li>libLLVMTarget.a</li>
265 <li>libLLVMTransformUtils.a</li>
266 <li>LLVMCore.o</li>
267 </ul></dd>
268 <dt><b>LLVMAnalysis.o</b</dt><dd><ul>
269 <li>libLLVMScalarOpts.a</li>
270 <li>libLLVMSupport.a</li>
271 <li>libLLVMTarget.a</li>
272 <li>libLLVMTransformUtils.a</li>
273 <li>LLVMCore.o</li>
274 </ul></dd>
275 <dt><b>LLVMAsmParser.o</b</dt><dd><ul>
276 <li>LLVMCore.o</li>
277 </ul></dd>
278 <dt><b>LLVMBCReader.o</b</dt><dd><ul>
279 <li>libLLVMSupport.a</li>
280 <li>libLLVMSystem.a</li>
281 <li>LLVMCore.o</li>
282 </ul></dd>
283 <dt><b>LLVMBCWriter.o</b</dt><dd><ul>
284 <li>libLLVMSupport.a</li>
285 <li>LLVMCore.o</li>
286 </ul></dd>
287 <dt><b>LLVMCBackend.o</b</dt><dd><ul>
288 <li>libLLVMAnalysis.a</li>
289 <li>libLLVMipa.a</li>
290 <li>libLLVMScalarOpts.a</li>
291 <li>libLLVMSupport.a</li>
292 <li>libLLVMTarget.a</li>
293 <li>LLVMCore.o</li>
294 </ul></dd>
295 <dt><b>LLVMCodeGen.o</b</dt><dd><ul>
296 <li>libLLVMAnalysis.a</li>
297 <li>libLLVMSupport.a</li>
298 <li>libLLVMTarget.a</li>
299 <li>LLVMCore.o</li>
300 </ul></dd>
301 <dt><b>LLVMCore.o</b</dt><dd><ul>
302 <li>libLLVMSupport.a</li>
303 </ul></dd>
304 <dt><b>LLVMDataStructure.o</b</dt><dd><ul>
305 <li>libLLVMAnalysis.a</li>
306 <li>libLLVMSupport.a</li>
307 <li>libLLVMTarget.a</li>
308 <li>libLLVMTransformUtils.a</li>
309 <li>LLVMCore.o</li>
310 </ul></dd>
311 <dt><b>LLVMDebugger.o</b</dt><dd><ul>
312 <li>libLLVMSupport.a</li>
313 <li>libLLVMSystem.a</li>
314 <li>LLVMBCReader.o</li>
315 <li>LLVMCodeGen.o</li>
316 <li>LLVMCore.o</li>
317 <li>LLVMExecutionEngine.o</li>
318 </ul></dd>
319 <dt><b>LLVMExecutionEngine.o</b</dt><dd><ul>
320 <li>libLLVMSupport.a</li>
321 <li>libLLVMSystem.a</li>
322 <li>libLLVMTarget.a</li>
323 <li>LLVMCore.o</li>
324 <li>LLVMInterpreter.o</li>
325 <li>LLVMJIT.o</li>
326 </ul></dd>
327 <dt><b>LLVMInstrumentation.o</b</dt><dd><ul>
328 <li>libLLVMSupport.a</li>
329 <li>libLLVMTransformUtils.a</li>
330 <li>LLVMCore.o</li>
331 </ul></dd>
332 <dt><b>LLVMInterpreter.o</b</dt><dd><ul>
333 <li>libLLVMSupport.a</li>
334 <li>libLLVMSystem.a</li>
335 <li>libLLVMTarget.a</li>
336 <li>LLVMCore.o</li>
337 <li>LLVMExecutionEngine.o</li>
338 </ul></dd>
339 <dt><b>LLVMJIT.o</b</dt><dd><ul>
340 <li>libLLVMSupport.a</li>
341 <li>libLLVMSystem.a</li>
342 <li>libLLVMTarget.a</li>
343 <li>LLVMCore.o</li>
344 <li>LLVMExecutionEngine.o</li>
345 </ul></dd>
346 <dt><b>LLVMPowerPC.o</b</dt><dd><ul>
347 <li>libLLVMScalarOpts.a</li>
348 <li>libLLVMSupport.a</li>
349 <li>libLLVMTarget.a</li>
350 <li>LLVMCodeGen.o</li>
351 <li>LLVMCore.o</li>
352 </ul></dd>
353 <dt><b>LLVMProfilePaths.o</b</dt><dd><ul>
354 <li>libLLVMInstrumentation.a</li>
355 <li>libLLVMSupport.a</li>
356 <li>LLVMCore.o</li>
357 </ul></dd>
358 <dt><b>LLVMScalarOpts.o</b</dt><dd><ul>
359 <li>libLLVMAnalysis.a</li>
360 <li>libLLVMSupport.a</li>
361 <li>libLLVMTarget.a</li>
362 <li>libLLVMTransformUtils.a</li>
363 <li>LLVMCore.o</li>
364 </ul></dd>
365 <dt><b>LLVMSelectionDAG.o</b</dt><dd><ul>
366 <li>LLVMCodeGen.o</li>
367 <li>LLVMCore.o</li>
368 </ul></dd>
369 <dt><b>LLVMSkeleton.o</b</dt><dd><ul>
370 <li>libLLVMTarget.a</li>
371 <li>LLVMCodeGen.o</li>
372 <li>LLVMCore.o</li>
373 </ul></dd>
Chris Lattnera07b2d52006-02-05 06:40:12 +0000[diff] [blame]374 <dt><b>LLVMSparc.o</b</dt><dd><ul>
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]375 <li>libLLVMScalarOpts.a</li>
376 <li>libLLVMSupport.a</li>
377 <li>libLLVMTarget.a</li>
378 <li>LLVMCodeGen.o</li>
379 <li>LLVMCore.o</li>
380 </ul></dd>
381 <dt><b>LLVMSparcV9.o</b</dt><dd><ul>
382 <li>libLLVMScalarOpts.a</li>
383 <li>libLLVMSparcV9RegAlloc.a</li>
384 <li>libLLVMSupport.a</li>
385 <li>libLLVMTarget.a</li>
386 <li>LLVMBCWriter.o</li>
387 <li>LLVMCodeGen.o</li>
388 <li>LLVMCore.o</li>
389 <li>LLVMSparcV9InstrSched.o</li>
390 <li>LLVMSparcV9ModuloSched.o</li>
391 </ul></dd>
392 <dt><b>LLVMSparcV9InstrSched.o</b</dt><dd><ul>
393 <li>libLLVMSupport.a</li>
394 <li>LLVMCodeGen.o</li>
395 <li>LLVMCore.o</li>
396 <li>LLVMSparcV9LiveVar.o</li>
397 <li>LLVMSparcV9.o</li>
398 </ul></dd>
399 <dt><b>LLVMSparcV9LiveVar.o</b</dt><dd><ul>
400 <li>libLLVMSupport.a</li>
401 <li>LLVMCodeGen.o</li>
402 <li>LLVMCore.o</li>
403 </ul></dd>
404 <dt><b>LLVMSparcV9ModuloSched.o</b</dt><dd><ul>
405 <li>libLLVMSupport.a</li>
406 <li>libLLVMTarget.a</li>
407 <li>LLVMCodeGen.o</li>
408 <li>LLVMCore.o</li>
409 <li>LLVMSparcV9.o</li>
410 </ul></dd>
411 <dt><b>LLVMSparcV9RegAlloc.o</b</dt><dd><ul>
412 <li>libLLVMAnalysis.a</li>
413 <li>libLLVMSupport.a</li>
414 <li>LLVMCodeGen.o</li>
415 <li>LLVMCore.o</li>
416 <li>LLVMSparcV9LiveVar.o</li>
417 <li>LLVMSparcV9.o</li>
418 </ul></dd>
419 <dt><b>LLVMSupport.o</b</dt><dd><ul>
420 <li>libLLVMSystem.a</li>
421 <li>LLVMbzip2.o</li>
422 </ul></dd>
Reid Spencerf309b442005-01-03 05:46:46 +0000[diff] [blame]423 <dt><b>LLVMSystem.o</b</dt><dd></dd>
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]424 <dt><b>LLVMTarget.o</b</dt><dd><ul>
425 <li>libLLVMSupport.a</li>
426 <li>LLVMCore.o</li>
427 </ul></dd>
428 <dt><b>LLVMTransformUtils.o</b</dt><dd><ul>
429 <li>libLLVMAnalysis.a</li>
430 <li>libLLVMScalarOpts.a</li>
431 <li>libLLVMSupport.a</li>
432 <li>LLVMCore.o</li>
433 </ul></dd>
434 <dt><b>LLVMTransforms.o</b</dt><dd><ul>
435 <li>libLLVMAnalysis.a</li>
436 <li>libLLVMSupport.a</li>
437 <li>libLLVMTarget.a</li>
438 <li>libLLVMTransformUtils.a</li>
439 <li>LLVMCore.o</li>
440 </ul></dd>
441 <dt><b>LLVMX86.o</b</dt><dd><ul>
442 <li>libLLVMScalarOpts.a</li>
443 <li>libLLVMSupport.a</li>
444 <li>libLLVMTarget.a</li>
445 <li>LLVMCodeGen.o</li>
446 <li>LLVMCore.o</li>
447 </ul></dd>
Reid Spencerf309b442005-01-03 05:46:46 +0000[diff] [blame]448 <dt><b>LLVMbzip2.o</b</dt><dd></dd>
Reid Spencer72767f62004-12-30 23:12:04 +0000[diff] [blame]449 <dt><b>LLVMipa.o</b</dt><dd><ul>
450 <li>libLLVMAnalysis.a</li>
451 <li>libLLVMSupport.a</li>
452 <li>LLVMCore.o</li>
453 </ul></dd>
454 <dt><b>LLVMipo.o</b</dt><dd><ul>
455 <li>libLLVMAnalysis.a</li>
456 <li>libLLVMipa.a</li>
457 <li>libLLVMScalarOpts.a</li>
458 <li>libLLVMSupport.a</li>
459 <li>libLLVMTarget.a</li>
460 <li>libLLVMTransformUtils.a</li>
461 <li>LLVMCore.o</li>
462 </ul></dd>
463</dl>
464</div>
465
466<!-- ======================================================================= -->
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]467<div class="doc_section"><a name="rot">Linkage Rules Of Thumb</a></div>
468<div class="doc_text">
469 <p>This section contains various "rules of thumb" about what files you
470 should link into your programs.</p>
471</div>
472<!-- ======================================================================= -->
Misha Brukman26ecf232004-11-08 00:22:22 +0000[diff] [blame]473<div class="doc_subsection"><a name="always">Always Link LLVMCore, LLVMSupport,
474 and LLVMSystem</a></div>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]475<div class="doc_text">
Reid Spencer47e49e12004-11-08 00:26:32 +0000[diff] [blame]476 <p>No matter what you do with LLVM, the last three entries in the value of
477 your LLVMLIBS make variable should always be:
478 <tt>LLVMCore LLVMSupport.a LLVMSystem.a</tt>. There are no <tt>LLVM</tt>
479 programs that don't depend on these three.</p>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]480</div>
481<!-- ======================================================================= -->
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]482<div class="doc_subsection"><a name="onlyone">Never link both archive and
483 re-linked library</a></div>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]484<div class="doc_text">
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]485 <p>There is never any point to linking both the re-linked (<tt>.o</tt>) and
486 the archive (<tt>.a</tt>) versions of a library. Since the re-linked version
487 includes the entire library, the archive version will not resolve any symbols.
Reid Spencer60ee2a22004-11-08 00:24:43 +0000[diff] [blame]488 You could even end up with link error if you place the archive version before
Reid Spencer0d6d8d02004-10-31 23:00:25 +0000[diff] [blame]489 the re-linked version on the linker's command line.</p>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]490</div>
491<!-- ======================================================================= -->
492<hr>
493<div class="doc_footer">
Reid Spencerfea14b52004-11-01 09:19:53 +0000[diff] [blame]494<address>
495 <a href="http://jigsaw.w3.org/css-validator/check/referer"><img
496 src="http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!"/></a>
497 <a href="http://validator.w3.org/check/referer"><img
498 src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01!" /></a>
499 <a href="mailto:rspencer@x10sys.com">Reid Spencer</a>
500</address>
Reid Spencerca058542006-03-14 05:39:39 +0000[diff] [blame]501<a href="http://llvm.org">The LLVM Compiler Infrastructure</a>
Chris Lattner524ee2b2004-02-27 06:28:34 +0000[diff] [blame]502<br>Last modified: $Date$ </div>
503</body>
504</html>
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