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gerrit-public.fairphone.software / fp2-dev / platform / external / llvm / 5175b82eccf3d0a773cc2e5462128efb5a5404f1 / . / docs / Projects.html
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Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
2 "http://www.w3.org/TR/html4/strict.dtd">
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]3<html>
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]4<head>
5 <title>Creating an LLVM Project</title>
6 <link rel="stylesheet" href="llvm.css" type="text/css">
7</head>
8<body>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]9
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]10<div class="doc_title">Creating an LLVM Project</div>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]11
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]12<ol>
13<li><a href="#overview">Overview</a></li>
14<li><a href="#create">Create a project from the Sample Project</a></li>
15<li><a href="#source">Source tree layout</a></li>
16<li><a href="#makefiles">Writing LLVM-style Makefiles</a>
17 <ol>
18 <li><a href="#reqVars">Required Variables</a></li>
19 <li><a href="#varsBuildDir">Variables for Building Subdirectories</a></li>
20 <li><a href="#varsBuildLib">Variables for Building Libraries</a></li>
21 <li><a href="#varsBuildProg">Variables for Building Programs</a></li>
22 <li><a href="#miscVars">Miscellaneous Variables</a></li>
23 </ol></li>
24<li><a href="#objcode">Placement of object code</a></li>
25<li><a href="#help">Further help</a></li>
26</ol>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]27
Chris Lattner7911ce22004-05-23 21:07:27 +0000[diff] [blame]28<div class="doc_author">
29 <p>Written by John Criswell</p>
30</div>
31
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]32<!-- *********************************************************************** -->
33<div class="doc_section"><a name="overview">Overview</a></div>
34<!-- *********************************************************************** -->
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]35
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]36<div class="doc_text">
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]37
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]38<p>The LLVM build system is designed to facilitate the building of third party
39projects that use LLVM header files, libraries, and tools. In order to use
40these facilities, a Makefile from a project must do the following things:</p>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]41
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]42<ol>
Reid Spencer39865c02005-01-16 02:21:18 +0000[diff] [blame]43 <li>Set <tt>make</tt> variables. There are several variables that a Makefile
44 needs to set to use the LLVM build system:
45 <ul>
46 <li><tt>PROJECT_NAME</tt> - The name by which your project is known.</li>
47 <li><tt>LLVM_SRC_ROOT</tt> - The root of the LLVM source tree.</li>
48 <li><tt>LLVM_OBJ_ROOT</tt> - The root of the LLVM object tree.</li>
49 <li><tt>PROJ_SRC_ROOT</tt> - The root of the project's source tree.</li>
50 <li><tt>PROJ_OBJ_ROOT</tt> - The root of the project's object tree.</li>
51 <li><tt>PROJ_INSTALL_ROOT</tt> - The root installation directory.</li>
52 <li><tt>LEVEL</tt> - The relative path from the current directory to the
53 project's root ($PROJ_OBJ_ROOT).</li>
54 </ul></li>
55 <li>Include <tt>Makefile.config</tt> from <tt>$(LLVM_OBJ_ROOT)</tt>.</li>
56 <li>Include <tt>Makefile.rules</tt> from <tt>$(LLVM_SRC_ROOT)</tt>.</li>
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]57</ol>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]58
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]59<p>There are two ways that you can set all of these variables:</p>
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]60<ol>
Reid Spencer39865c02005-01-16 02:21:18 +0000[diff] [blame]61 <li>You can write your own Makefiles which hard-code these values.</li>
62 <li>You can use the pre-made LLVM sample project. This sample project
63 includes Makefiles, a configure script that can be used to configure the
64 location of LLVM, and the ability to support multiple object directories
65 from a single source directory.</li>
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]66</ol>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]67
Reid Spencer39865c02005-01-16 02:21:18 +0000[diff] [blame]68<p>This document assumes that you will base your project on the LLVM sample
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]69project found in <tt>llvm/projects/sample</tt>. If you want to devise your own
70build system, studying the sample project and LLVM Makefiles will probably
71provide enough information on how to write your own Makefiles.</p>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]72
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]73</div>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]74
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]75<!-- *********************************************************************** -->
76<div class="doc_section">
77 <a name="create">Create a Project from the Sample Project</a>
78</div>
79<!-- *********************************************************************** -->
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]80
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]81<div class="doc_text">
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]82
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]83<p>Follow these simple steps to start your project:</p>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]84
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]85<ol>
86<li>Copy the <tt>llvm/projects/sample</tt> directory to any place of your
87choosing. You can place it anywhere you like. Rename the directory to match
88the name of your project.</li>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]89
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]90<li>Add your source code and Makefiles to your source tree.</li>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]91
Reid Spencer5175b822005-02-28 00:40:29 +0000[diff] [blame^]92<li>If you want your project to be configured with the <tt>configure</tt> script
93then you need to edit <tt>autoconf/configure.ac</tt> as follows:
94 <ul>
95 <li><b>AC_INIT</b>. Place the name of your project, its version number and
96 a contact email address for your project as the arguments to this macro</li>
97 <li><b>AC_CONFIG_AUC_DIR</tt>. If your project isn't in the
98 <tt>llvm/projects</tt> directory then you might need to adjust this so that
99 it specifies a relative path to the <tt>llvm/autoconf</tt> directory.</li>
100 <li><b>LLVM_CONFIG_PROJECT</b>. Just leave this alone.</li>
101 <li><b>AC_CONFIG_SRCDIR</b>. Specify a path to a file name that identifies
102 your project; or just leave it at <tt>Makefile.config.in</tt></li>
103 <li><b>AC_CONFIG_FILES</b>. Do not change.</li>
104 <li><b>AC_CONFIG_MAKEFILE</b>. Use one of these macros for each Makefile
105 that your project uses. This macro arranges for your makefiles to be copied
106 from the source directory, unmodified, to the build directory.</li>
107 </ul>
108</li>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]109
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]110<li>After updating <tt>autoconf/configure.ac</tt>, regenerate the
111configure script with these commands:
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]112
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]113<div class="doc_code">
114<p><tt>% cd autoconf<br>
Reid Spencer5175b822005-02-28 00:40:29 +0000[diff] [blame^]115 % AutoRegen.sh</tt></p>
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]116</div>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]117
Reid Spencer5175b822005-02-28 00:40:29 +0000[diff] [blame^]118<p>You must be using Autoconf version 2.59 or later and your aclocal version
119should 1.9 or later.</p></li>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]120
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]121<li>Run <tt>configure</tt> in the directory in which you want to place
122object code. Use the following options to tell your project where it
123can find LLVM:
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]124
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]125 <dl>
Reid Spencer5175b822005-02-28 00:40:29 +0000[diff] [blame^]126 <dt><tt>--with-llvmsrc=&lt;directory&gt;</tt></dt>
127 <dd>Tell your project where the LLVM source tree is located.</dd>
128 <dt><br/><tt>--with-llvmobj=&lt;directory&gt;</tt></dt>
129 <dd>Tell your project where the LLVM object tree is located.</dd>
130 <dt><br/><tt>--prefix=&lt;directory&gt;</tt></dt>
131 <dd>Tell your project where it should get installed.</dd>
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]132 </dl>
133</ol>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]134
Reid Spencer5175b822005-02-28 00:40:29 +0000[diff] [blame^]135<p>That's it! Now all you have to do is type <tt>gmake</tt> (or <tt>make</tt>
136if your on a GNU/Linux system) in the root of your object directory, and your
137project should build.</p>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]138
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]139</div>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]140
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]141<!-- *********************************************************************** -->
142<div class="doc_section">
143 <a name="source">Source Tree Layout</a>
144</div>
145<!-- *********************************************************************** -->
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]146
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]147<div class="doc_text">
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]148
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]149<p>In order to use the LLVM build system, you will want to organize your
150source code so that it can benefit from the build system's features.
151Mainly, you want your source tree layout to look similar to the LLVM
152source tree layout. The best way to do this is to just copy the
153project tree from <tt>llvm/projects/sample</tt> and modify it to meet
154your needs, but you can certainly add to it if you want.</p>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]155
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]156<p>Underneath your top level directory, you should have the following
157directories:</p>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]158
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]159<dl>
160 <dt><b>lib</b>
161 <dd>
162 This subdirectory should contain all of your library source
163 code. For each library that you build, you will have one
164 directory in <b>lib</b> that will contain that library's source
165 code.
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]166
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]167 <p>
168 Libraries can be object files, archives, or dynamic libraries.
169 The <b>lib</b> directory is just a convenient place for libraries
170 as it places them all in a directory from which they can be linked
171 later.
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]172
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]173 <dt><b>include</b>
174 <dd>
175 This subdirectory should contain any header files that are
176 global to your project. By global, we mean that they are used
177 by more than one library or executable of your project.
178 <p>
179 By placing your header files in <b>include</b>, they will be
180 found automatically by the LLVM build system. For example, if
181 you have a file <b>include/jazz/note.h</b>, then your source
182 files can include it simply with <b>#include "jazz/note.h"</b>.
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]183
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]184 <dt><b>tools</b>
185 <dd>
186 This subdirectory should contain all of your source
187 code for executables. For each program that you build, you
188 will have one directory in <b>tools</b> that will contain that
189 program's source code.
190 <p>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]191
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]192 <dt><b>test</b>
193 <dd>
194 This subdirectory should contain tests that verify that your code
195 works correctly. Automated tests are especially useful.
196 <p>
Tanya Lattnerd10bc6e2004-12-08 17:25:46 +0000[diff] [blame]197 Currently, the LLVM build system provides basic support for tests.
198 The LLVM system provides the following:
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]199 <ul>
200 <li>
Tanya Lattnerd10bc6e2004-12-08 17:25:46 +0000[diff] [blame]201 LLVM provides a tcl procedure that is used by Dejagnu to run
202 tests. It can be found in <tt>llvm/lib/llvm-dg.exp</tt>. This
203 test procedure uses RUN lines in the actual test case to determine
204 how to run the test. See the <a
205 href="TestingGuide.html">TestingGuide</a> for more details. You
206 can easily write Makefile support similar to the Makefiles in <tt>llvm/test</tt>
207 to use Dejagnu to run your project's tests.</li>
208
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]209 <p>
John Criswell2b89a6a2003-10-21 19:35:06 +0000[diff] [blame]210
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]211 <li>
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]212 LLVM contains an optional package called <tt>llvm-test</tt>
213 which provides benchmarks and programs that are known to compile with the
214 LLVM GCC front ends. You can use these
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]215 programs to test your code, gather statistics information, and
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]216 compare it to the current LLVM performance statistics.
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]217 <p>
218 Currently, there is no way to hook your tests directly into the
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]219 <tt>llvm/test</tt> testing harness. You will simply
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]220 need to find a way to use the source provided within that directory
221 on your own.
222 </ul>
223</dl>
John Criswell2b89a6a2003-10-21 19:35:06 +0000[diff] [blame]224
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]225<p>Typically, you will want to build your <b>lib</b> directory first followed by
226your <b>tools</b> directory.</p>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]227
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]228</div>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]229
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]230<!-- *********************************************************************** -->
231<div class="doc_section">
232 <a name="makefiles">Writing LLVM Style Makefiles</a>
233</div>
234<!-- *********************************************************************** -->
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]235
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]236<div class="doc_text">
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]237
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]238<p>The LLVM build system provides a convenient way to build libraries and
239executables. Most of your project Makefiles will only need to define a few
240variables. Below is a list of the variables one can set and what they can
241do:</p>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]242
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]243</div>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]244
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]245<!-- ======================================================================= -->
246<div class="doc_subsection">
247 <a name="reqVars">Required Variables</a>
248</div>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]249
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]250<div class="doc_text">
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]251
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]252<dl>
253 <dt>LEVEL
254 <dd>
255 This variable is the relative path from this Makefile to the
256 top directory of your project's source code. For example, if
257 your source code is in <tt>/tmp/src</tt>, then the Makefile in
258 <tt>/tmp/src/jump/high</tt> would set <tt>LEVEL</tt> to <tt>"../.."</tt>.
259</dl>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]260
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]261</div>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]262
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]263<!-- ======================================================================= -->
264<div class="doc_subsection">
265 <a name="varsBuildDir">Variables for Building Subdirectories</a>
266</div>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]267
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]268<div class="doc_text">
John Criswell37c154a2003-10-17 21:50:38 +0000[diff] [blame]269
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]270<dl>
271 <dt>DIRS
272 <dd>
273 This is a space separated list of subdirectories that should be
274 built. They will be built, one at a time, in the order
275 specified.
276 <p>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]277
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]278 <dt>PARALLEL_DIRS
279 <dd>
280 This is a list of directories that can be built in parallel.
281 These will be built after the directories in DIRS have been
282 built.
283 <p>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]284
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]285 <dt>OPTIONAL_DIRS
286 <dd>
287 This is a list of directories that can be built if they exist,
288 but will not cause an error if they do not exist. They are
289 built serially in the order in which they are listed.
290</dl>
John Criswellf2413ae2003-07-03 15:37:52 +0000[diff] [blame]291
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]292</div>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]293
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]294<!-- ======================================================================= -->
295<div class="doc_subsection">
296 <a name="varsBuildLib">Variables for Building Libraries</a>
297</div>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]298
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]299<div class="doc_text">
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]300
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]301<dl>
302 <dt>LIBRARYNAME
303 <dd>
304 This variable contains the base name of the library that will
305 be built. For example, to build a library named
306 <tt>libsample.a</tt>, LIBRARYNAME should be set to
307 <tt>sample</tt>.
308 <p>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]309
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]310 <dt>BUILD_ARCHIVE
311 <dd>
312 By default, a library is a <tt>.o</tt> file that is linked
313 directly into a program. To build an archive (also known as
314 a static library), set the BUILD_ARCHIVE variable.
315 <p>
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]316
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]317 <dt>SHARED_LIBRARY
318 <dd>
319 If SHARED_LIBRARY is defined in your Makefile, a shared
320 (or dynamic) library will be built.
321</dl>
322
323</div>
324
325<!-- ======================================================================= -->
326<div class="doc_subsection">
327 <a name="varsBuildProg">Variables for Building Programs</a>
328</div>
329
330<div class="doc_text">
331
332<dl>
333 <dt>TOOLNAME
334 <dd>
335 This variable contains the name of the program that will
336 be built. For example, to build an executable named
337 <tt>sample</tt>, TOOLNAME should be set to <tt>sample</tt>.
338 <p>
339
340 <dt>USEDLIBS
341 <dd>
342 This variable holds a space separated list of libraries that
343 should be linked into the program. These libraries must either
344 be LLVM libraries or libraries that come from your <b>lib</b>
345 directory. The libraries must be specified by their base name.
346 For example, to link libsample.a, you would set USEDLIBS to
347 <tt>sample</tt>.
348 <p>
349 Note that this works only for statically linked libraries.
350 <p>
351
352 <dt>LIBS
353 <dd>
354 To link dynamic libraries, add <tt>-l&lt;library base name&gt;</tt> to
355 the LIBS variable. The LLVM build system will look in the same places
356 for dynamic libraries as it does for static libraries.
357 <p>
358 For example, to link <tt>libsample.so</tt>, you would have the
359 following line in your <tt>Makefile</tt>:
360 <p>
361 <tt>
362 LIBS += -lsample
363 </tt>
364</dl>
365
366</div>
367
368<!-- ======================================================================= -->
369<div class="doc_subsection">
370 <a name="miscVars">Miscellaneous Variables</a>
371</div>
372
373<div class="doc_text">
374
375<dl>
376 <dt>ExtraSource
377 <dd>
378 This variable contains a space separated list of extra source
379 files that need to be built. It is useful for including the
380 output of Lex and Yacc programs.
381 <p>
382
383 <dt>CFLAGS
384 <dt>CPPFLAGS
385 <dd>
386 This variable can be used to add options to the C and C++
387 compiler, respectively. It is typically used to add options
388 that tell the compiler the location of additional directories
389 to search for header files.
390 <p>
391 It is highly suggested that you append to CFLAGS and CPPFLAGS as
392 opposed to overwriting them. The master Makefiles may already
393 have useful options in them that you may not want to overwrite.
394 <p>
395</dl>
396
397</div>
398
399<!-- *********************************************************************** -->
400<div class="doc_section">
401 <a name="objcode">Placement of Object Code</a>
402</div>
403<!-- *********************************************************************** -->
404
405<div class="doc_text">
406
407<p>The final location of built libraries and executables will depend upon
408whether you do a Debug, Release, or Profile build.</p>
409
410<dl>
411 <dt>Libraries
412 <dd>
413 All libraries (static and dynamic) will be stored in
Reid Spencerd967c802005-01-16 02:38:06 +0000[diff] [blame]414 <tt>PROJ_OBJ_ROOT/&lt;type&gt;/lib</tt>, where type is <tt>Debug</tt>,
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]415 <tt>Release</tt>, or <tt>Profile</tt> for a debug, optimized, or
416 profiled build, respectively.<p>
417
418 <dt>Executables
419 <dd>All executables will be stored in
Reid Spencerd967c802005-01-16 02:38:06 +0000[diff] [blame]420 <tt>PROJ_OBJ_ROOT/&lt;type&gt;/bin</tt>, where type is <tt>Debug</tt>,
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]421 <tt>Release</tt>, or <tt>Profile</tt> for a debug, optimized, or profiled
422 build, respectively.
423</dl>
424
425</div>
426
427<!-- *********************************************************************** -->
428<div class="doc_section">
429 <a name="help">Further Help</a>
430</div>
431<!-- *********************************************************************** -->
432
433<div class="doc_text">
434
435<p>If you have any questions or need any help creating an LLVM project,
436the LLVM team would be more than happy to help. You can always post your
437questions to the <a
438href="http://mail.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVM Developers
439Mailing List</a>.</p>
440
441</div>
442
443<!-- *********************************************************************** -->
John Criswell7a4b96d2003-10-16 19:53:53 +0000[diff] [blame]444<hr>
Misha Brukmanf6a04072004-05-12 20:57:43 +0000[diff] [blame]445<address>
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450
451 <a href="mailto:criswell@uiuc.edu">John Criswell</a><br>
452 <a href="http://llvm.cs.uiuc.edu">The LLVM Compiler Infrastructure</a>
453 <br>
454 Last modified: $Date$
455</address>
Misha Brukman733adcb2003-10-30 01:23:40 +0000[diff] [blame]456
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