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4<head>
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6 <link rel="stylesheet" href="llvm.css" type="text/css" media="screen">
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]7 <title>Bootstrapping the LLVM C/C++ Front-End</title>
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]8</head>
9<body>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]10
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]11<div class="doc_title">
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]12 Bootstrapping the LLVM C/C++ Front-End
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]13</div>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]14
Brian Gaeke7af03e92003-11-12 20:47:30 +0000[diff] [blame]15<ol>
16 <li><a href="#cautionarynote">A Cautionary Note</a>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]17 <ul>
Misha Brukman62a93432004-06-18 15:54:54 +0000[diff] [blame]18 <li><a href="#cygwin">Building under Cygwin</a></li>
Misha Brukman03ea9d42004-08-23 17:54:45 +0000[diff] [blame]19 <li><a href="#aix">Building under AIX</a></li>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]20 </ul>
21 </li>
Chris Lattner810ad8c2006-07-11 20:47:00 +0000[diff] [blame]22 <li><a href="#instructions">llvm-gcc4 Instructions</a></li>
23 <li><a href="#llvm-gcc3-instructions">llvm-gcc3 Instructions</a></li>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]24 <li><a href="#license">License Information</a></li>
Brian Gaeke7af03e92003-11-12 20:47:30 +0000[diff] [blame]25</ol>
26
Chris Lattner7911ce22004-05-23 21:07:27 +0000[diff] [blame]27<div class="doc_author">
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]28 <p>Written by Brian R. Gaeke and
29 <a href="http://nondot.org/sabre">Chris Lattner</a></p>
Brian Gaeke7af03e92003-11-12 20:47:30 +0000[diff] [blame]30</div>
31
32<!-- *********************************************************************** -->
33<div class="doc_section">
34 <a name="cautionarynote">A Cautionary Note</a>
35</div>
36<!-- *********************************************************************** -->
37
38<div class="doc_text">
39<p>This document is intended to explain the process of building the
Chris Lattner810ad8c2006-07-11 20:47:00 +0000[diff] [blame]40LLVM C/C++ front-end from its source code. You have to do this, for example, if
41you are porting LLVM to a new architecture or operating system, if you are
42working from Top-Of-Tree CVS/SVN, or if there is no precompiled snapshot
43available.</p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]44
45<p><b>NOTE:</b> This is currently a somewhat fragile, error-prone
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]46process, and you should <b>only</b> try to do it if:</p>
47
48<ol>
49 <li>you really, really, really can't use the binaries we distribute</li>
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]50 <li>you are an elite GCC hacker.</li>
Chris Lattnerc8118e12005-02-21 16:35:31 +0000[diff] [blame]51 <li>you want to use the latest bits from CVS.</li>
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]52</ol>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]53
54<p>We welcome patches to help make this process simpler.</p>
Brian Gaeke7af03e92003-11-12 20:47:30 +0000[diff] [blame]55</div>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]56
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]57<!--=========================================================================-->
58<div class="doc_subsection">
Misha Brukman62a93432004-06-18 15:54:54 +0000[diff] [blame]59 <a name="cygwin">Building under Cygwin</a>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]60</div>
61<!--=========================================================================-->
62
63<div class="doc_text">
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]64<p>If you are building LLVM and the GCC front-end under Cygwin, please note that
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]65the LLVM and GCC makefiles do not correctly handle spaces in paths. To deal
66with this issue, make sure that your LLVM and GCC source and build trees are
67located in a top-level directory (like <tt>/cygdrive/c/llvm</tt> and
68<tt>/cygdrive/c/llvm-cfrontend</tt>), not in a directory that contains a space
69(which includes your "home directory", because it lives under the "Documents
70and Settings" directory). We welcome patches to fix this issue.
71</p>
Reid Spencer24042362004-12-22 09:52:30 +0000[diff] [blame]72<p>It has been found that the GCC 3.3.3 compiler provided with recent Cygwin
John Criswelld6c6ee02005-10-24 16:37:24 +0000[diff] [blame]73versions is incapable of compiling the LLVM GCC front-end correctly. If your
74Cygwin
John Criswelld0c4a762005-05-13 20:38:44 +0000[diff] [blame]75installation includes GCC 3.3.3, we <i>strongly</i> recommend that you download
Chris Lattner810ad8c2006-07-11 20:47:00 +0000[diff] [blame]76GCC 3.4.3, build it separately, and use it for compiling the LLVM GCC front-end.
77 This has been
Reid Spencer24042362004-12-22 09:52:30 +0000[diff] [blame]78shown to work correctly.</p>
Reid Spencer72a59002004-12-23 19:49:54 +0000[diff] [blame]79<p>Some versions of Cygwin utilize an experimental version of GNU binutils that
80will cause the GNU <tt>ld</tt> linker to fail an assertion when linking
81components of the libstdc++. It is recommended that you replace the entire
82binutils package with version 2.15 such that "<tt>ld --version</tt>" responds
Misha Brukman00b95c32005-03-01 17:19:21 +0000[diff] [blame]83with</p>
Reid Spencer72a59002004-12-23 19:49:54 +0000[diff] [blame]84<pre>GNU ld version 2.15</pre>
85not with:<br/>
86<pre>GNU ld version 2.15.91 20040725</pre>
Misha Brukman00b95c32005-03-01 17:19:21 +0000[diff] [blame]87</div>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]88
Misha Brukman03ea9d42004-08-23 17:54:45 +0000[diff] [blame]89<!--=========================================================================-->
Reid Spencere0a7ddd2004-12-31 19:48:59 +0000[diff] [blame]90<div class="doc_subsection"><a name="aix">Building under AIX</a></div>
Misha Brukman03ea9d42004-08-23 17:54:45 +0000[diff] [blame]91<div class="doc_text">
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]92<p>If you are building LLVM and the GCC front-end under AIX, do NOT use GNU
Misha Brukman03ea9d42004-08-23 17:54:45 +0000[diff] [blame]93Binutils. They are not stable under AIX and may produce incorrect and/or
94invalid code. Instead, use the system assembler and linker.
95</p>
96</div>
97
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]98<!-- *********************************************************************** -->
99<div class="doc_section">
Chris Lattner810ad8c2006-07-11 20:47:00 +0000[diff] [blame]100 <a name="instructions">llvm-gcc4 Instructions</a>
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]101</div>
102<!-- *********************************************************************** -->
103
104<div class="doc_text">
Chris Lattner810ad8c2006-07-11 20:47:00 +0000[diff] [blame]105
106<p>This section describes how to aquire and build llvm-gcc4, which is based on
107the GCC 4.0.1 front-end. This front-end supports C, C++, Objective-C, and
108Objective-C++. Note that the instructions for building this front-end are
109completely different than those for building llvm-gcc3.
110</p>
111
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]112<ol>
Jim Laskeye9493d32006-06-16 23:34:49 +0000[diff] [blame]113<li>
114<p>Retrieve the appropriate llvm-gcc4-x.y.source.tar.gz archive from the llvm
115web site.</p>
116<p>It is also possible to download the sources of the llvm-gcc4 front end from
Chris Lattner810ad8c2006-07-11 20:47:00 +0000[diff] [blame]117a read-only mirror using subversion. To check out the code the first time use:
Jim Laskeye9493d32006-06-16 23:34:49 +0000[diff] [blame]118</p>
119
120<tt>svn co svn://anonsvn.opensource.apple.com/svn/llvm <i>dst-directory</i></tt>
121
122<p>After that, the code can be be updated in the destination directory using;
123</p>
124
125<tt>svn update</tt>
126
127<p>The mirror is brought up to date every evening.</p>
128</li>
Chris Lattner810ad8c2006-07-11 20:47:00 +0000[diff] [blame]129
130<li>Follow the directions in the top-level README.LLVM file for up-to-date
131 instructions on how to build llvm-gcc4.</li>
132</ol>
133</div>
134
135<!-- *********************************************************************** -->
136<div class="doc_section">
137 <a name="llvm-gcc3-instructions">llvm-gcc3 Instructions</a>
138</div>
139<!-- *********************************************************************** -->
140
141<div class="doc_text">
142<ol>
143<li>Aquire llvm-gcc3 from <a href="GettingStarted.html#checkout">LLVM CVS</a> or
144from a <a href="http://llvm.org/releases/">release tarball</a>.</li>
145
Reid Spencere0a7ddd2004-12-31 19:48:59 +0000[diff] [blame]146<li><p>Configure and build the LLVM libraries and tools. There are two ways to
John Criswelld0c4a762005-05-13 20:38:44 +0000[diff] [blame]147do this: either with <i>objdir</i> == <i>srcdir</i> or
148<i>objdir</i> != <i>srcdir</i>. It is recommended
Chris Lattnere9967142005-09-21 03:56:26 +0000[diff] [blame]149that <i>srcdir</i> be the same as <i>objdir</i> for your LLVM tree (but note
150that you should always use <i>srcdir</i> != <i>objdir</i> for llvm-gcc):</p>
Reid Spencere0a7ddd2004-12-31 19:48:59 +0000[diff] [blame]151<ul>
152 <li>With <i>objdir</i> != <i>srcdir</i>:<pre>
153 % cd <i>objdir</i>
154 % <i>srcdir</i>/configure --prefix=/some/path/you/can/install/to [options...]
155 % gmake tools-only
156 </pre></li>
157 <li>With <i>objdir</i> == <i>srcdir</i>:<pre>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]158 % cd llvm
Reid Spencer0b4f4682004-12-01 05:15:44 +0000[diff] [blame]159 % ./configure --prefix=/some/path/you/can/install/to [options...]
Misha Brukmane7490532004-08-14 22:13:33 +0000[diff] [blame]160 % gmake tools-only
Reid Spencere0a7ddd2004-12-31 19:48:59 +0000[diff] [blame]161 </pre></li>
162</ul>
163<p>This will build all of the LLVM tools and libraries. The <tt>--prefix</tt>
164option defaults to /usr/local (per configure standards) but unless you are a
165system administrator, you probably won't be able to install LLVM there because
166of permissions. Specify a path into which LLVM can be installed (e.g.
167<tt>--prefix=/home/user/llvm</tt>).</p>
Reid Spencer0b4f4682004-12-01 05:15:44 +0000[diff] [blame]168</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]169
170<li><p>Add the directory containing the tools to your PATH.</p>
171<pre>
John Criswellc7f42642004-12-01 14:12:30 +0000[diff] [blame]172 % set path = ( `cd llvm/Debug/bin &amp;&amp; pwd` $path )
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]173</pre></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]174
Chris Lattnerb1241b02005-02-11 21:17:26 +0000[diff] [blame]175<li><p>Unpack the C/C++ front-end source into cfrontend/src, either by
John Criswell8bfe6a72005-05-18 19:43:33 +0000[diff] [blame]176 untar'ing a cfrontend.source.tar.gz file or checking out CVS into this
Chris Lattnerb1241b02005-02-11 21:17:26 +0000[diff] [blame]177 directory.</p></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]178
John Criswelld0c4a762005-05-13 20:38:44 +0000[diff] [blame]179<li><p>Make "build" and "install" directories as siblings of the "src" tree:</p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]180<pre>
181 % pwd
182 /usr/local/example/cfrontend/src
183 % cd ..
184 % mkdir build install
185 % set CFEINSTALL = `pwd`/install
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]186</pre></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]187
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]188
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]189<li><p>Configure, build, and install the GCC front-end:</p>
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]190
191<p>
Misha Brukman31b24322004-06-21 14:00:44 +0000[diff] [blame]192<b>Linux/x86:</b><br>
Duraid Madina0203a312005-06-14 07:29:50 +0000[diff] [blame]193<b>Linux/IA-64:</b><br>
Misha Brukmana964fe52004-08-09 18:37:04 +0000[diff] [blame]194<b>MacOS X/PowerPC</b> (requires dlcompat library):<br>
195<b>AIX/PowerPC:</b>
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]196</p>
197
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]198<pre>
199 % cd build
Misha Brukmana964fe52004-08-09 18:37:04 +0000[diff] [blame]200 % ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls \
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]201 --disable-shared --enable-languages=c,c++ --program-prefix=llvm-
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]202 % gmake all; gmake install
203</pre>
204
Misha Brukman62a93432004-06-18 15:54:54 +0000[diff] [blame]205<p><b>Cygwin/x86:</b></p>
Chris Lattner893c26a2004-06-02 19:27:50 +0000[diff] [blame]206
207<pre>
208 % cd build
Misha Brukmana964fe52004-08-09 18:37:04 +0000[diff] [blame]209 % ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls \
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]210 --disable-shared --enable-languages=c,c++ --disable-c-mbchar \
211 --program-prefix=llvm-
Chris Lattner893c26a2004-06-02 19:27:50 +0000[diff] [blame]212 % gmake all; gmake install
213</pre>
214
215<p><b>Solaris/SPARC:</b></p>
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]216
217<p>
John Criswellaf94d582005-05-13 20:54:44 +0000[diff] [blame]218The GCC front-end can be configured for either SPARC V8 (32 bit) or SPARC V9 (64
219bit). This changes, among other things, the sizes of integer types and the
220macros defined for conditional compilation.
221</p>
222
223<p>
Chris Lattner23c5b3c2006-02-05 06:44:17 +0000[diff] [blame]224The SPARC V8 ABI support is more robust than the V9 ABI support and can generate
225SPARC V9 code. It is highly recommended that you use the V8 ABI with LLVM, as
226shown below. Also,
Brian Gaeke7e9bd802004-01-28 20:54:41 +0000[diff] [blame]227note that Solaris has trouble with various wide (multibyte) character
228functions from C as referenced from C++, so we typically configure with
Reid Spencer05fe4b02006-03-14 05:39:39 +0000[diff] [blame]229--disable-c-mbchar (cf. <a href="http://llvm.org/PR206">Bug 206</a>).
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]230</p>
231
232<pre>
233 % cd build
Brian Gaeke7e9bd802004-01-28 20:54:41 +0000[diff] [blame]234 % ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls \
Chris Lattner23c5b3c2006-02-05 06:44:17 +0000[diff] [blame]235 --disable-shared --enable-languages=c,c++ --host=sparc-sun-solaris2.8 \
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]236 --disable-c-mbchar --program-prefix=llvm-
Brian Gaeke7e9bd802004-01-28 20:54:41 +0000[diff] [blame]237 % gmake all; gmake install
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]238</pre>
239
Chris Lattnere38c6282003-10-23 03:55:23 +0000[diff] [blame]240 <p><b>Common Problem:</b> You may get error messages regarding the fact
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]241 that LLVM does not support inline assembly. Here are two common
242 fixes:</p>
243
244 <ul>
245 <li><p><b>Fix 1:</b> If you have system header files that include
246 inline assembly, you may have to modify them to remove the inline
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]247 assembly and install the modified versions in
Chris Lattner37874052004-10-06 03:13:47 +0000[diff] [blame]248 <code>$CFEINSTALL/lib/gcc/<i>target-triplet</i>/3.4-llvm/include</code>.</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]249
250 <li><b>Fix 2:</b> If you are building the C++ front-end on a CPU we
251 haven't tried yet, you will probably have to edit the appropriate
252 version of atomicity.h under
253 <code>src/libstdc++-v3/config/cpu/<i>name-of-cpu</i>/atomicity.h</code>
Misha Brukman6a2b3102004-05-12 18:49:47 +0000[diff] [blame]254 and apply a patch so that it does not use inline assembly.</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]255 </ul>
256
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]257 <p><b>Porting to a new architecture:</b> If you are porting the front-end
258 to a new architecture or compiling in a configuration that we have
259 not tried previously, there are probably several changes you will have to make
260 to the GCC target to get it to work correctly. These include:<p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]261
262 <ul>
John Criswell6e35eda2004-11-29 21:46:29 +0000[diff] [blame]263 <li>Often targets include special assembler or linker flags which
Chris Lattnere38c6282003-10-23 03:55:23 +0000[diff] [blame]264 <tt>gccas</tt>/<tt>gccld</tt> does not understand. In general, these can
265 just be removed.</li>
266 <li>LLVM currently does not support any floating point values other than
267 32-bit and 64-bit IEEE floating point. The primary effect of this is
268 that you may have to map "long double" onto "double".</li>
269 <li>The profiling hooks in GCC do not apply at all to the LLVM front-end.
270 These may need to be disabled.</li>
271 <li>No inline assembly for position independent code. At the LLVM level,
272 everything is position independent.</li>
273 <li>We handle <tt>.init</tt> and <tt>.fini</tt> differently.</li>
Chris Lattner13964e02003-10-24 16:02:34 +0000[diff] [blame]274 <li>You may have to disable multilib support in your target. Using multilib
275 support causes the GCC compiler driver to add a lot of "<tt>-L</tt>"
276 options to the link line, which do not relate to LLVM and confuse
277 <tt>gccld</tt>. To disable multilibs, delete any
278 <tt>MULTILIB_OPTIONS</tt> lines from your target files.</li>
Chris Lattnere38c6282003-10-23 03:55:23 +0000[diff] [blame]279 <li>Did we mention that we don't support inline assembly? You'll probably
280 have to add some fixinclude hacks to disable it in the system
281 headers.</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]282 </ul>
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]283</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]284
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]285<li><p>Put <tt>$CFEINSTALL/bin</tt> into your <tt>PATH</tt> environment
286variable.</p>
287 <ul>
288 <li>sh: <tt>export PATH=$CFEINSTALL/bin:$PATH</tt></li>
289 <li>csh: <tt>setenv PATH $CFEINSTALL/bin:$PATH</tt></li>
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]290 </ul>
291</li>
292
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]293<li><p>Go back into the LLVM source tree proper. Rerun configure, using
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]294the same options as the last time. This will cause the configuration to now find
295the newly built llvm-gcc and llvm-g++ executables. </p></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]296
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]297<li><p>Rebuild your CVS tree. This shouldn't cause the whole thing to be
298 rebuilt, but it should build the runtime libraries. After the tree is
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]299 built, install the runtime libraries into your GCC front-end build tree.
Misha Brukman98558ae2005-03-01 17:15:23 +0000[diff] [blame]300 These are the commands you need:</p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]301<pre>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]302 % gmake
Reid Spencer3149ba72004-12-04 08:13:20 +0000[diff] [blame]303 % gmake -C runtime install-bytecode
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]304</pre></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]305
Reid Spencerf99e59a2004-11-25 17:13:17 +0000[diff] [blame]306<li><p>Optionally, build a symbol table for the newly installed runtime
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]307libraries. Although this step is optional, you are strongly encouraged to
308do this as the symbol tables will make a significant difference in your
309link times. Use the <tt>llvm-ranlib</tt> tool to do this, as follows:</p>
Reid Spencerf99e59a2004-11-25 17:13:17 +0000[diff] [blame]310<pre>
311 % cd $CFEINSTALL/lib
312 % llvm-ranlib libiberty.a
313 % llvm-ranlib libstdc++.a
Chris Lattner302ed2a2004-12-01 04:16:29 +0000[diff] [blame]314 % llvm-ranlib libsupc++.a
Reid Spencercfaf80c2004-12-22 16:19:05 +0000[diff] [blame]315 % cd $CFEINSTALL/lib/gcc/<i>target-triplet</i>/3.4-llvm
Reid Spencerf99e59a2004-11-25 17:13:17 +0000[diff] [blame]316 % llvm-ranlib libgcc.a
317 % llvm-ranlib libgcov.a
318</pre>
319
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]320<li><p>Test the newly-installed C frontend by one or more of the
321following means:</p>
322 <ul>
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]323 <li> running the feature &amp; regression tests via <tt>make check</tt></li>
Chris Lattnere38c6282003-10-23 03:55:23 +0000[diff] [blame]324 <li> compiling and running a "hello, LLVM" program in C and C++.</li>
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]325 <li> running the tests found in the <tt>llvm-test</tt> CVS module</li>
Misha Brukman6a2b3102004-05-12 18:49:47 +0000[diff] [blame]326 </ul></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]327</ol>
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]328</div>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]329
330<!-- *********************************************************************** -->
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]331<div class="doc_section">
332 <a name="license">License Information</a>
333</div>
334
335<div class="doc_text">
336<p>
337The LLVM GCC frontend is licensed to you under the GNU General Public License
338and the GNU Lesser General Public License. Please see the files COPYING and
339COPYING.LIB for more details.
340</p>
341
342<p>
Chris Lattner810ad8c2006-07-11 20:47:00 +0000[diff] [blame]343More information is <a href="FAQ.html#license">available in the FAQ</a>.
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]344</p>
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]345</pre>
346</div>
347
348<!-- *********************************************************************** -->
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]349
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]350<hr>
Misha Brukman6a2b3102004-05-12 18:49:47 +0000[diff] [blame]351<address>
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357 Brian Gaeke<br>
Reid Spencer05fe4b02006-03-14 05:39:39 +0000[diff] [blame]358 <a href="http://llvm.org">LLVM Compiler Infrastructure</a><br>
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]359 Last modified: $Date$
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