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+<html>
+<head><title>OpenJDK Build README</title></head>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<center>
+ <h1>OpenJDK Build README</h1>
+</center>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="introduction">Introduction</a></h2>
+
+<blockquote>
+ <p>
+ This README file contains build instructions for the
+ <a href="http://openjdk.java.net">OpenJDK</a>.
+ Building the source code for the
+ OpenJDK
+ requires
+ a certain degree of technical expertise.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="contents">Contents</a></h2>
+
+<blockquote>
+ <ul>
+ <li><a href="#introduction">Introduction</a></li>
+ <li><a href="#MBE">Minimum Build Environments</a></li>
+ <li><a href="#SDBE">Specific Developer Build Environments</a></li>
+ <li><a href="#directories">Source Directory Structure</a> </li>
+ <li><a href="#building">Build Information</a>
+ <ul type="disc">
+ <li><a href="#gmake">GNU Make (<tt><i>gmake</i></tt>)</a> </li>
+ <li><a href="#linux">Basic Linux System Setup</a> </li>
+ <li><a href="#solaris">Basic Solaris System Setup</a> </li>
+ <li><a href="#windows">Basic Windows System Setup</a> </li>
+ <li><a href="#dependencies">Build Dependencies</a> </li>
+ <ul type="disc">
+ <li><a href="#bootjdk">Bootstrap JDK</a> </li>
+ <li><a href="#binaryplugs">Binary Plugs</a> </li>
+ <li><a href="#cacerts">Certificate Authority File (cacert)</a> </li>
+ <li><a href="#compilers">Compilers</a>
+ <ul>
+ <li><a href="#msvc">Microsoft Visual Studio</a> </li>
+ <li><a href="#mssdk">Microsoft Platform SDK</a> </li>
+ <li><a href="#gcc">Linux gcc/binutils</a> </li>
+ <li><a href="#studio">Sun Studio</a> </li>
+ </ul>
+ </li>
+ <li>Linux and Solaris:
+ <ul>
+ <li><a href="#cups">CUPS Include files</a> </li>
+ </ul>
+ </li>
+ <li>Windows only:
+ <ul>
+ <li>Unix Command Tools (<a href="#cygwin">CYGWIN</a>)</li>
+ <li><a href="#dxsdk">DirectX 9.0 SDK</a> </li>
+ </ul>
+ </li>
+ </ul>
+ </ul>
+ </li>
+ <li><a href="#creating">Creating the Build</a> </li>
+ <li><a href="#testing">Testing the Build</a> </li>
+ <li><a href="#variables">Environment/Make Variables</a></li>
+ <li><a href="#troubleshooting">Troubleshooting</a></li>
+ </ul>
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="MBE">Minimum Build Environments</a></h2>
+
+<blockquote>
+ <p>
+ This file often describes specific requirements for what we call the
+ "minimum build environments" (MBE) for the JDK.
+ Building with the MBE will generate the most compatible
+ bits that install on, and run correctly on, the most variations
+ of the same base OS and hardware architecture.
+ These usually represent what is often called the
+ least common denominator platforms.
+ It is understood that most developers will NOT be using these
+ specific platforms, and in fact creating these specific platforms
+ may be difficult due to the age of some of this software.
+ <p>
+
+ <p>
+ The minimum OS and C/C++ compiler versions needed for building the
+ OpenJDK:
+ <p>
+ <center>
+ <table border="1">
+ <thead>
+ <tr>
+ <th>Base OS and Architecture</th>
+ <th>OS</th>
+ <th>Compiler</th>
+ </tr>
+ </thead>
+ <tbody>
+ <tr>
+ <td>Linux X86 (32bit)</td>
+ <td>Red Hat Enterprise Linux 4 </td>
+ <td>gcc 4 </td>
+ </tr>
+ <tr>
+ <td>Linux X64 (64bit)</td>
+ <td>Red Hat Enterprise Linux 4 </td>
+ <td>gcc 4 </td>
+ </tr>
+ <tr>
+ <td>Solaris SPARC (32bit)</td>
+ <td>Solaris 10 + patches
+ <br>
+ See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE">SunSolve</a> for patch downloads.
+ </td>
+ <td>Sun Studio 11 </td>
+ </tr>
+ <tr>
+ <td>Solaris SPARCV9 (64bit)</td>
+ <td>Solaris 10 + patches
+ <br>
+ See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE">SunSolve</a> for patch downloads.
+ </td>
+ <td>Sun Studio 11</td>
+ </tr>
+ <tr>
+ <td>Solaris X86 (32bit)</td>
+ <td>Solaris 10 + patches
+ <br>
+ See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE">SunSolve</a> for patch downloads.
+ </td>
+ <td>Sun Studio 11</td>
+ </tr>
+ <tr>
+ <td>Solaris X64 (64bit)</td>
+ <td>Solaris 10 + patches
+ <br>
+ See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE">SunSolve</a> for patch downloads.
+ </td>
+ <td>Sun Studio 11</td>
+ </tr>
+ <tr>
+ <td>Windows X86 (32bit)</td>
+ <td>Windows XP</td>
+ <td>Microsoft Visual Studio .NET 2003 Professional</td>
+ </tr>
+ <tr>
+ <td>Windows X64 (64bit)</td>
+ <td>Windows Server 2003 - Enterprise x64 Edition</td>
+ <td>Microsoft Platform SDK - April 2005</td>
+ </tr>
+ </tbody>
+ </table>
+ </center>
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="SDBE">Specific Developer Build Environments</a></h2>
+
+<blockquote>
+ <p>
+ We won't be listing all the possible environments, but
+ we will try to provide what information we have available to us.
+</blockquote>
+
+<h3><a name="fedora">Fedora</a></h3>
+
+<blockquote>
+ TBD
+</blockquote>
+
+<h3><a name="debian">Debian</a></h3>
+
+<blockquote>
+ TBD
+</blockquote>
+
+<h3><a name="ubuntu">Ubuntu</a></h3>
+
+<blockquote>
+ <p>
+ In addition to needing the Bootstrap JDK and the Binary Plugs,
+ when building on Ubuntu you will need to
+ make sure certain packages are installed.
+ In particular, certain X11 packages, make, m4, gawk, gcc 4,
+ binutils, cups, freetype
+ and alsa.
+
+ <h4>Ubuntu 6.06</h4>
+
+ <p>
+ The following list of packages for Ubuntu 6.06 is a working set that
+ does appear to work.
+
+ <p>
+ <b>Note that it's quite possible that some of these
+ packages are not required, so anyone discovering that some of the
+ packages listed below are NOT required,
+ please let the
+ OpenJDK
+ team know.</b>
+ <p>
+ All the packages below can be installed with the
+ Synaptic Package manager provided with the base Ubuntu 6.06 release.
+
+ <blockquote>
+ <ul>
+ <li>binutils (2.16.1cvs20060117-1ubuntu2.1)</li>
+ <li>cpp (4:4.0.3-1)</li>
+ <li>cpp-4.0 (4.0.3-1ubuntu5)</li>
+ <li>libfreetype6-dev</li>
+ <li>g++ (4:4.0.3-1)</li>
+ <li>g++-4.0 (4.0.3-1ubuntu5)</li>
+ <li>gawk (1:3.1.5-2build1)</li>
+ <li>gcc (4:4.0.3-1)</li>
+ <li>gcc-4.0 (4.0.3-1ubuntu5)</li>
+ <li>libasound2-dev (1.0.10-2ubuntu4)</li>
+ <li>libc6 (2.3.6-0ubuntu20) to 2.3.6-0ubuntu20.4</li>
+ <li>libc6-dev (2.3.6-0ubuntu20.4)</li>
+ <li>libc6-i686 (2.3.6-0ubuntu20) to 2.3.6-0ubuntu20.4</li>
+ <li>libcupsys2-dev (1.2.2-0ubuntu0.6.06)</li>
+ <li>libgcrypt11-dev (1.2.2-1)</li>
+ <li>libgnutls-dev (1.2.9-2ubuntu1.1)</li>
+ <li>libgnutls12 (1.2.9-2ubuntu1) to 1.2.9-2ubuntu1.1</li>
+ <li>libgpg-error-dev (1.1-4)</li>
+ <li>libice-dev (2:1.0.0-0ubuntu2)</li>
+ <li>liblockfile1 (1.06.1)</li>
+ <li>libopencdk8-dev (0.5.7-2)</li>
+ <li>libpopt-dev (1.7-5)</li>
+ <li>libsm-dev (2:1.0.0-0ubuntu2)</li>
+ <li>libstdc++6-4.0-dev (4.0.3-1ubuntu5)</li>
+ <li>libtasn1-2-dev (0.2.17-1ubuntu1)</li>
+ <li>libx11-dev (2:1.0.0-0ubuntu9)</li>
+ <li>libxau-dev (1:1.0.0-0ubuntu4)</li>
+ <li>libxaw-headers (2:1.0.1-0ubuntu3)</li>
+ <li>libxaw7-dev (2:1.0.1-0ubuntu3)</li>
+ <li>libxdmcp-dev (1:1.0.0-0ubuntu2)</li>
+ <li>libxext-dev (2:1.0.0-0ubuntu4)</li>
+ <li>libxi-dev (2:1.0.0-0ubuntu3) </li>
+ <li>libxmu-dev (2:1.0.0-0ubuntu3)</li>
+ <li>libxmu-headers (2:1.0.0-0ubuntu3)</li>
+ <li>libxmuu-dev (2:1.0.0-0ubuntu3)</li>
+ <li>libxp-dev (6.8.2-11ubuntu2)</li>
+ <li>libxpm-dev (1:3.5.4.2-0ubuntu3)</li>
+ <li>libxrandr-dev (1:1.1.0.2-0ubuntu4)</li>
+ <li>libxt-dev (1:1.0.0-0ubuntu3)</li>
+ <li>libxtrap-dev (2:1.0.0-0ubuntu2)</li>
+ <li>libxtst-dev (2:1.0.1-0ubuntu2)</li>
+ <li>libxv-dev (2:1.0.1-0ubuntu3)</li>
+ <li>linux-kernel-headers (2.6.11.2-0ubuntu18)</li>
+ <li>m4 (1.4.4-1)</li>
+ <li>make (3.80+3.81.b4-1)</li>
+ <li>ssl-cert (1.0.13)</li>
+ <li>x-dev (7.0.4-0ubuntu2)</li>
+ <li>x11proto-core-dev (7.0.4-0ubuntu2)</li>
+ <li>x11proto-input-dev (1.3.2-0ubuntu2)</li>
+ <li>x11proto-kb-dev (1.0.2-0ubuntu2)</li>
+ <li>x11proto-randr-dev (1.1.2-0ubuntu2)</li>
+ <li>x11proto-record-dev (1.13.2-0ubuntu2)</li>
+ <li>x11proto-trap-dev (3.4.3-0ubuntu2)</li>
+ <li>x11proto-video-dev (2.2.2-0ubuntu2)</li>
+ <li>x11proto-xext-dev (7.0.2-0ubuntu2)</li>
+ <li>xlibs-dev (7.0.0-0ubuntu45)</li>
+ <li>zlib1g-dev (1:1.2.3-6ubuntu4)</li>
+ </ul>
+ </blockquote>
+
+ <h4>Ubuntu 7.04</h4>
+
+ <p>
+ Using the Synaptic Package Manager, download the following
+ packages (double indented packages are automatically aquired
+ due to package dependencies):
+
+ <blockquote>
+ <ul>
+ <li>build-essential</li>
+ <ul>
+ <li>dpkg-dev</li>
+ <li>g++</li>
+ <li>g++-4.1</li>
+ <li>libc6-dev</li>
+ <li>libstdc++6.4.1-dev</li>
+ <li>linux-libc-dev</li>
+ </ul>
+ <li>gawk</li>
+ <li>m4</li>
+ <li>libasound2-dev</li>
+ <li>libcupsys2-dev</li>
+ <ul>
+ <li>libgcrypt11-dev</li>
+ <li>lgnutls-dev</li>
+ <li>libgpg-error-dev</li>
+ <li>liblzo-dev</li>
+ <li>libopencdk8-dev</li>
+ <li>libpopt-dev</li>
+ <li>libtasn1-3-dev</li>
+ <li>zlib1g-dev</li>
+ </ul>
+ <li>sun-java6-jdk</li>
+ <ul>
+ <li>java-common</li>
+ <li>libltdl3</li>
+ <li>odbcinst1debian1</li>
+ <li>sun-java6-bin</li>
+ <li>sun-java6-jre</li>
+ <li>unixodbc</li>
+ </ul>
+ <li>xlibs-dev</li>
+ <ul>
+ <li>(many)</li>
+ </ul>
+ <li>x11proto-print-dev</li>
+ <li>libxaw7-dev</li>
+ <ul>
+ <li>libxaw-headers</li>
+ </ul>
+ <li>libxp-dev</li>
+ <li>libfreetype6-dev</li>
+ </ul>
+ </blockquote>
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="directories">Source Directory Structure</a></h2>
+
+<blockquote>
+ <p>
+ The source code for the
+ OpenJDK is
+ delivered in <i>3</i> sibling directories:
+ <tt>hotspot</tt>,
+ <tt>langtools</tt>,
+ <tt>corba</tt>,
+ <tt>jaxws</tt>,
+ <tt>jaxp</tt>,
+ <tt>jdk</tt>
+ and
+ The <tt>hotspot</tt> directory contains the source code and make
+ files for
+ building the
+ OpenJDK
+ Hotspot Virtual Machine.
+ The <tt>jdk</tt>
+ directory contains the source code and make files for
+ building the
+ OpenJDK
+ runtime libraries, tools and demos.
+ The top level Makefile is used to build the complete OpenJDK
+ release including building the hotspot
+ VM, staging the VM binaries, and building the
+ OpenJDK
+ runtime libraries,
+ tools and demos.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="building">Build Information</a></h2>
+
+<blockquote>
+ <p>
+ Building the
+ OpenJDK
+ is done with a <tt><i>gmake</i></tt>
+ command line and various
+ environment or make variable settings that direct the make rules
+ to where various components have been installed.
+ Where possible the makefiles will attempt to located the various
+ components in the default locations or any component specific
+ variable settings.
+ When the normal defaults fail or components cannot be found,
+ the various
+ <tt>ALT_*</tt> variables (alternates)
+ can be used to help the makefiles locate components.
+ <p>
+ Refer to the bash/sh/ksh setup file
+ <tt>jdk/make/jdk_generic_profile.sh</tt>
+ if you need help in setting up your environment variables.
+ A build could be as simple as:
+ <blockquote>
+ <pre><tt>
+ bash
+ . jdk/make/jdk_generic_profile.sh
+ <i>gmake</i> sanity && <i>gmake</i>
+ </tt></pre>
+ </blockquote>
+ <p>
+ Of course ksh or sh would work too.
+ But some customization will probably be necessary.
+ The <tt>sanity</tt> rule will make some basic checks on build
+ dependencies and generate appropriate warning messages
+ regarding missing, out of date, or newer than expected components
+ found on your system.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h3><a name="gmake">GNU make (<tt><i>gmake</i></tt>)</a></h3>
+
+<blockquote>
+ <p>
+ The Makefiles in the
+ OpenJDK
+ are only valid when used with the
+ GNU version of the utility command <tt>make</tt>
+ (<tt><i>gmake</i></tt>).
+ A few notes about using GNU make:
+ <ul>
+ <li>
+ In general, you need GNU make version 3.78.1 or newer.
+ </li>
+ <li>
+ Place the location of the GNU make binary in the <tt>PATH</tt>.
+ </li>
+ <li>
+ <strong>Linux:</strong>
+ The <tt>/usr/bin/make</tt> command should work fine for you.
+ </li>
+ <li>
+ <strong>Solaris:</strong>
+ Do NOT use <tt>/usr/bin/make</tt> on Solaris.
+ If your Solaris system has the software
+ from the Solaris Companion CD installed,
+ you should use <tt>gmake</tt>
+ which will be located in either the <tt>/opt/sfw/bin</tt> or
+ <tt>/usr/sfw/bin</tt> directory.
+ </li>
+ <li>
+ <strong>Windows:</strong>
+ Make sure you start your build inside a bash/sh/ksh shell.
+ <br>
+ <b>WARNING:</b> Watch out for make version 3.81, it may
+ not work due to a lack of support for drive letter paths
+ like <tt>C:/</tt>. Use a 3.80 version, or find a newer
+ version that has this problem fixed.
+ </li>
+ </ul>
+ <p>
+ Information on GNU make, and access to ftp download sites, are
+ available on the
+ <a href="http://www.gnu.org/software/make/make.html">
+ GNU make web site
+ </a>.
+ The latest source to GNU make is available at
+ <a href="http://ftp.gnu.org/pub/gnu/make/">ftp.gnu.org/pub/gnu/make/</a>.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h3><a name="linux">Basic Linux System Setup</a></h3>
+
+<blockquote>
+ <p>
+ <strong>i586 only:</strong>
+ The minimum recommended hardware for building the Linux version
+ is a Pentium class processor or better, at least 256 MB of RAM, and
+ approximately 1.5 GB of free disk space.
+ <p>
+ <strong>X64 only:</strong>
+ The minimum recommended hardware for building the Linux
+ version is an AMD Opteron class processor, at least 512 MB of RAM, and
+ approximately 4 GB of free disk space.
+ <p>
+ The build will use the tools contained in
+ <tt>/bin</tt> and
+ <tt>/usr/bin</tt>
+ of a standard installation of the Linux operating environment.
+ You should ensure that these directories are in your
+ <tt>PATH</tt>.
+ <p>
+ Note that some Linux systems have a habit of pre-populating
+ your environment variables for you, for example <tt>JAVA_HOME</tt>
+ might get pre-defined for you to refer to the JDK installed on
+ your Linux system.
+ You will need to unset <tt>JAVA_HOME</tt>.
+ It's a good idea to run <tt>env</tt> and verify the
+ environment variables you are getting from the default system
+ settings make sense for building the
+ OpenJDK.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+
+<h4><a name="linux_checklist">Basic Linux Check List</a></h4>
+
+<blockquote>
+ <ol>
+ <li>
+ Install the
+ <a href="#bootjdk">Bootstrap JDK</a>, set
+ <tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>.
+ </li>
+ <li>
+ Install the
+ <a href="#binaryplugs">Binary Plugs</a>, set
+ <tt><a href="#ALT_BINARY_PLUGS_PATH">ALT_BINARY_PLUGS_PATH</a></tt>.
+ </li>
+ <li>
+ Install or upgrade the <a href="#freetype">FreeType development
+ package</a>.
+ </li>
+ </ol>
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h3><a name="solaris">Basic Solaris System Setup</a></h3>
+
+<blockquote>
+ <p>
+ The minimum recommended hardware for building the
+ Solaris SPARC version is an UltraSPARC with 512 MB of RAM.
+ For building
+ the Solaris x86 version, a Pentium class processor or better and at
+ least 128 MB of RAM are recommended.
+ Approximately 1.4 GB of free disk
+ space is needed for a 32-bit build.
+ <p>
+ If you are building the 64bit version, you should
+ run the command "isainfo -v" to verify that you have a
+ 64-bit installation.
+ An additional 7 GB of free disk space is needed
+ for a 64-bit build.
+ <p>
+ The build uses the tools contained in <tt>/usr/ccs/bin</tt>
+ and <tt>/usr/bin</tt> of a standard developer or full installation of
+ the Solaris operating environment.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+
+<h4><a name="solaris_checklist">Basic Solaris Check List</a></h4>
+
+<blockquote>
+ <ol>
+ <li>
+ Install the
+ <a href="#bootjdk">Bootstrap JDK</a>, set
+ <tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>.
+ </li>
+ <li>
+ Install the
+ <a href="#binaryplugs">Binary Plugs</a>, set
+ <tt><a href="#ALT_BINARY_PLUGS_PATH">ALT_BINARY_PLUGS_PATH</a></tt>.
+ </li>
+ <li>
+ Install the
+ <a href="#studio">Sun Studio Compilers</a>, set
+ <a href="#ALT_COMPILER_PATH"><tt>ALT_COMPILER_PATH</tt></a>.
+ </li>
+ <li>
+ Install the
+ <a href="#cups">CUPS Include files</a>, set
+ <tt><a href="#ALT_CUPS_HEADERS_PATH">ALT_CUPS_HEADERS_PATH</a></tt>.
+ </li>
+ </ol>
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h3><a name="windows">Basic Windows System Setup</a></h3>
+
+<blockquote>
+ <p>
+ <strong>i586 only:</strong>
+ The minimum recommended hardware for building the 32bit or X86
+ Windows version is an Pentium class processor or better, at least
+ 512 MB of RAM, and approximately 600 MB of free disk space.
+ <strong>
+ NOTE: The Windows 2000 build machines need to use the
+ file system NTFS.
+ Build machines formatted to FAT32 will not work
+ because FAT32 doesn't support case-sensitivity in file names.
+ </strong>
+ <p>
+ <strong>X64 only:</strong>
+ The minimum recommended hardware for building
+ the Windows X64 version is an AMD Opteron class processor, at least 1
+ GB of RAM, and approximately 10 GB of free disk space.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+
+<h4><a name="paths">Windows Paths</a></h4>
+
+<blockquote>
+ <p>
+ <strong>Windows:</strong>
+ Note that GNU make is a historic utility and is based very
+ heavily on shell scripting, so it does not tolerate the Windows habit
+ of having spaces in pathnames or the use of the <tt>\</tt>characters in pathnames.
+ Luckily on most Windows systems, you can use <tt>/</tt>instead of \, and
+ there is always a 'short' pathname without spaces for any path that
+ contains spaces.
+ Unfortunately, this short pathname can be somewhat dynamic and the
+ formula is difficult to explain.
+ You can use <tt>cygpath</tt> utility to map pathnames with spaces
+ or the <tt>\</tt>character into the <tt>C:/</tt> style of pathname
+ (called 'mixed'), e.g.
+ <tt>cygpath -s -m "<i>path</i>"</tt>.
+ <p>
+ The makefiles will try to translate any pathnames supplied
+ to it into the <tt>C:/</tt> style automatically.
+ <p>
+ Note that use of CYGWIN creates a unique problem with regards to
+ setting <a href="#path"><tt>PATH</tt></a>. Normally on Windows
+ the <tt>PATH</tt> variable contains directories
+ separated with the ";" character (Solaris and Linux uses ":").
+ With CYGWIN, it uses ":", but that means that paths like "C:/path"
+ cannot be placed in the CYGWIN version of <tt>PATH</tt> and
+ instead CYGWIN uses something like <tt>/cygdrive/c/path</tt>
+ which CYGWIN understands, but only CYGWIN understands.
+ So be careful with paths on Windows.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+
+<h4><a name="windows_checklist">Basic Windows Check List</a></h4>
+
+<blockquote>
+ <ol>
+ <li>
+ Install the
+ <a href="#cygwin">CYGWIN product</a>.
+ </li>
+ <li>
+ Install the
+ <a href="#bootjdk">Bootstrap JDK</a>, set
+ <tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>.
+ </li>
+ <li>
+ Install the
+ <a href="#binaryplugs">Binary Plugs</a>, set
+ <tt><a href="#ALT_BINARY_PLUGS_PATH">ALT_BINARY_PLUGS_PATH</a></tt>..
+ </li>
+ <li>
+ Install the
+ <a href="#msvc">Microsoft Visual Studio .NET 2003 Professional</a> or the
+ <a href="#mssdk">Microsoft Platform SDK</a>.
+ </li>
+ <li>
+ Setup all environment variables for compilers
+ (see <a href="#msvc">compilers</a>).
+ </li>
+ <li>
+ Install
+ <a href="#dxsdk">Microsoft DirectX SDK</a>.
+ </li>
+ </ol>
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h3><a name="dependencies">Build Dependencies</a></h3>
+
+<blockquote>
+ <p>
+ Depending on the platform, the
+ OpenJDK
+ build process has some basic
+ dependencies on components not part of the
+ OpenJDK
+ sources.
+ Some of these are specific to a platform, some even specific to
+ an architecture.
+ Each dependency will have a set of ALT variables that can be set
+ to tell the makefiles where to locate the component.
+ In most cases setting these ALT variables may not be necessary
+ and the makefiles will find defaults on the system in standard
+ install locations or through component specific variables.
+
+ <h4><a name="bootjdk">Bootstrap JDK</a></h4>
+
+ <blockquote>
+ <p>
+ All
+ OpenJDK
+ builds require access to the previously released
+ JDK 6, this is often called a bootstrap JDK.
+ The JDK 6 binaries can be downloaded from Sun's
+ <a href="http://java.sun.com/javase/1.6.0/download.html">JDK 6 download site</a>.
+ For build performance reasons
+ is very important that this bootstrap JDK be made available on the
+ local disk of the machine doing the build.
+ You should always set
+ <tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>
+ to point to the location of
+ the bootstrap JDK installation, this is the directory pathname
+ that contains a <tt>bin, lib, and include</tt>
+ It's also a good idea to also place its <tt>bin</tt> directory
+ in the <tt>PATH</tt> environment variable, although it's
+ not required.
+ <p>
+ <strong>Solaris:</strong>
+ Some pre-installed JDK images may be available to you in the
+ directory <tt>/usr/jdk/instances</tt>.
+ If you don't set
+ <tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>
+ the makefiles will look in that location for a JDK it can use.
+ </blockquote>
+
+ <h4><a name="binaryplugs">Binary Plugs</a></h4>
+
+ <blockquote>
+ <p>
+ Not all of the source code that makes up the JDK is available
+ under an open-source license.
+ In order to build an OpenJDK binary from source code,
+ you must first download and install the appropriate
+ binary plug bundles from the OpenJDK Download area.
+ During the OpenJDK build process these "binary plugs"
+ for the encumbered components will be copied into your
+ resulting OpenJDK binary build image.
+ These binary plug files are only for the purpose of
+ building an OpenJDK binary.
+ Download the Binary Plugs by selecting the <b>Downloads</b>
+ link at
+ <a href="http://openjdk.java.net/">the OpenJDK site</a>,
+ install the bundle,
+ and make sure you set
+ <tt><a href="#ALT_BINARY_PLUGS_PATH">ALT_BINARY_PLUGS_PATH</a></tt>
+ to the root of this installation.
+ </blockquote>
+
+ <h4><a name="cacerts">Certificate Authority File (cacert)</a></h4>
+
+ <blockquote>
+ <p>
+ See <a href="http://en.wikipedia.org/wiki/CAcert">
+ www.wikipedia.org/wiki/CAcert</a>
+ for a better understanding of the Certificate Authority (CA).
+ A certificates file named "cacerts"
+ represents a system-wide keystore with CA certificates.
+ In JDK and JRE
+ binary bundles, the "cacerts" file contains root CA certificates from
+ several public CAs (e.g., VeriSign, Thawte, and Baltimore).
+ The source contain a cacerts file
+ without CA root certificates.
+ Formal JDK builders will need to secure
+ permission from each public CA and include the certificates into their
+ own custom cacerts file.
+ Failure to provide a populated cacerts file
+ will result in verification errors of a certificate chain during runtime.
+ The variable
+ <tt><a href="#ALT_CACERTS_FILE">ALT_CACERTS_FILE</a></tt>
+ can be used to override the default location of the
+ cacerts file that will get placed in your build.
+ By default an empty cacerts file is provided and that should be
+ fine for most JDK developers.
+ </blockquote>
+
+ <h4><a name="compilers">Compilers</a></h4>
+
+ <blockquote>
+
+ <a name="gcc">
+ <strong>Linux gcc/binutils</strong>
+ </a>
+
+ <blockquote>
+ <p>
+ The GNU gcc compiler version should be 3.2.2 or newer.
+ The binutils package should be 2.11.93.0.2-11 or newer.
+ The compiler used should be the default compiler installed
+ in <tt>/usr/bin</tt>.
+ </blockquote>
+
+ <strong><a name="studio">Solaris: Sun Studio</a></strong>
+
+ <blockquote>
+ <p>
+ At a minimum, the
+ <a href="http://developers.sun.com/sunstudio/index.jsp">
+ Sun Studio 11 Compilers</a>
+ (containing version 5.8 of the C and C++ compilers) is required,
+ with patches from the
+ <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/patch-access">
+ SunSolve web site</a>.
+ <p>
+ Set
+ <a href="#ALT_COMPILER_PATH"><tt>ALT_COMPILER_PATH</tt></a>
+ to point to the location of
+ the compiler binaries, and place this location in the <tt>PATH</tt>.
+ <p>
+ The Sun Studio Express compilers at:
+ <a href="http://developers.sun.com/sunstudio/downloads/express.jsp">
+ Sun Studio Express Download site</a>
+ are also an option, although these compilers have not
+ been extensively used yet.
+ </blockquote>
+
+ <a name="msvc">
+ <strong>Windows i586: Microsoft Visual Studio .NET 2003 Professional</strong>
+ </a>
+
+ <blockquote>
+ <p>
+ The 32-bit
+ OpenJDK
+ Windows build
+ requires Microsoft Visual Studio .NET 2003 (VS2003) Professional
+ Edition compiler.
+ The compiler and other tools are expected to reside
+ in the location defined by the variable <tt>VS71COMNTOOLS</tt> which
+ is set by the Microsoft Visual Studio .NET installer.
+ <p>
+ Once the compiler is installed,
+ it is recommended that you run <tt>VCVARS32.BAT</tt>
+ to set the compiler environment variables
+ <tt>MSVCDIR</tt>,
+ <tt>INCLUDE</tt>,
+ <tt>LIB</tt>, and
+ <tt>PATH</tt>
+ prior to building the
+ OpenJDK.
+ The above environment variables <b>MUST</b> be set.
+ <p>
+ The Microsoft Visual Studio .NET 2005 (VS2005) compiler
+ will not work at this time due to the new runtime dll
+ and the manifest requirements.
+ </blockquote>
+
+ <a name="mssdk">
+ <strong>Windows X64: Microsoft Platform SDK April 2005</strong>
+ </a>
+
+ <blockquote>
+ <p>
+ On <b>X64</b>,
+ the Microsoft Platform Software
+ Development Kit (SDK), April 2005 Edition compiler, is required for
+ building the
+ OpenJDK
+ because it contains the C/C++ compiler.
+ You will need to minimally install the Core SDK and
+ the MDAC SDK features of this compiler.
+ <p>
+ Once the Platform SDK is installed,
+ it is recommended that you run <tt>SetEnv.Cmd /X64</tt>
+ to set the compiler environment variables
+ <tt>MSSDK</tt>,
+ <tt>MSTOOLS</tt>,
+ <tt>INCLUDE</tt>,
+ <tt>LIB</tt>, and
+ <tt>PATH</tt>
+ prior to building the
+ OpenJDK.
+ The above environment variables <b>MUST</b> be set.
+ <p>
+ Note that this compiler may say it's version is a
+ Microsoft Visual Studio .NET 2005 (VS2005), but be careful,
+ it will not match the official VS2005 product.
+ This Platform SDK compiler is only used on X64 builds.
+ </blockquote>
+
+ </blockquote>
+
+ <h4><a name="cups">Common UNIX Printing System (CUPS) Headers (Solaris & Linux)</a></h4>
+
+ <blockquote>
+ <p>
+ <strong>Solaris:</strong>
+ CUPS header files are required for building the
+ OpenJDK on Solaris.
+ The Solaris header files can be obtained by installing
+ the package <strong>SFWcups</strong> from the Solaris Software
+ Companion CD/DVD, these often will be installed into
+ <tt>/opt/sfw/cups</tt>.
+ <p>
+ <strong>Linux:</strong>
+ CUPS header files are required for building the
+ OpenJDK on Linux.
+ The Linux header files are usually available from a "cups"
+ development package, it's recommended that you try and use
+ the package provided by the particular version of Linux that
+ you are using.
+ <p>
+ The CUPS header files can always be downloaded from
+ <a href="http://www.cups.org">www.cups.org</a>.
+ The variable
+ <tt><a href="#ALT_CUPS_HEADERS_PATH">ALT_CUPS_HEADERS_PATH</a></tt>
+ can be used to override the default location of the
+ CUPS Header files.
+ </blockquote>
+
+ <h4><a name="freetype">FreeType 2</a></h4>
+
+ <blockquote>
+ <p>
+ Version 2.3 or newer of FreeType is required for building the OpenJDK.
+ On Unix systems required files can be available as part of your
+ distribution (while you still may need to upgrade them).
+ Note that you need development version of package that
+ includes both FreeType library and header files.
+ </p>
+ <p>
+ You can always download latest FreeType version from the
+ <a href="http://www.freetype.org">FreeType website</a>.
+ </p>
+ <p>
+ Makefiles will try to pick FreeType from /usr/lib and /usr/include.
+ In case it is installed elsewhere you will need to set environment
+ variables
+ <tt><a href="#ALT_FREETYPE_LIB_PATH">ALT_FREETYPE_LIB_PATH</a></tt>
+ and
+ <tt><a href="#ALT_FREETYPE_HEADERS_PATH">ALT_FREETYPE_HEADERS_PATH</a></tt>
+ to refer to place where library and header files are installed.
+ </p>
+ </blockquote>
+
+ <h4><a name="alsa">Advanced Linux Sound Architecture (ALSA) (Linux only)</a></h4>
+
+ <blockquote>
+ <p>
+ <strong>Linux only:</strong>
+ Version 0.9.1 or newer of the ALSA files are
+ required for building the
+ OpenJDK on Linux.
+ These Linux files are usually available from an "alsa"
+ of "libasound"
+ development package, it's recommended that you try and use
+ the package provided by the particular version of Linux that
+ you are using.
+ The makefiles will check this emit a sanity error if it is
+ missing or the wrong version.
+ As a last resort you can go to the
+ <a href="http://www.alsa-project.org" target="_blank">
+ Advanced Linux Sound Architecture Site</a>.
+ </blockquote>
+
+ <h4>Windows Specific Dependencies</h4>
+
+ <blockquote>
+
+ <strong>Unix Command Tools (<a name="cygwin">CYGWIN</a>)</strong>
+
+ <blockquote>
+ <p>
+ The
+ OpenJDK
+ requires access to a set of unix command tools
+ on Windows which can be supplied by
+ <a href="http://www.cygwin.com">CYGWIN</a>.
+ <p>
+ The
+ OpenJDK
+ build
+ requires CYGWIN version 1.5.12 or newer.
+ Information about CYGWIN can
+ be obtained from the CYGWIN website at
+ <a href="http://www.cygwin.com">www.cygwin.com</a>.
+ <p>
+ By default CYGWIN doesn't install all the tools required for building
+ the OpenJDK.
+ Along with the default installation, you need to install
+ the following tools.
+ <blockquote>
+ <table border="1">
+ <thead>
+ <tr>
+ <td>Binary Name</td>
+ <td>Package</td>
+ <td>Description</td>
+ </tr>
+ </thead>
+ <tbody>
+ <tr>
+ <td>ar.exe</td>
+ <td>Devel</td>
+ <td>binutils: The GNU assembler, linker and binary
+ utilities</td>
+ </tr>
+ <tr>
+ <td>make.exe</td>
+ <td>Devel</td>
+ <td>make: The GNU version of the 'make' utility</td>
+ </tr>
+ <tr>
+ <td>m4.exe</td>
+ <td>Interpreters</td>
+ <td>m4: GNU implementation of the traditional Unix macro
+ processor</td>
+ </tr>
+ <tr>
+ <td>cpio.exe</td>
+ <td>Utils</td>
+ <td>cpio: A program to manage archives of files</td>
+ </tr>
+ <tr>
+ <td>file.exe</td>
+ <td>Utils</td>
+ <td>file: Determines file type using 'magic' numbers</td>
+ </tr>
+ </tbody>
+ </table>
+ </blockquote>
+ </blockquote>
+
+ <a name="dxsdk">
+ <strong>Microsoft DirectX 9.0 SDK header files and libraries</strong>
+ </a>
+
+ <blockquote>
+ <p>
+ Microsoft DirectX 9.0 SDK (Summer 2004)
+ headers are required for building
+ OpenJDK.
+ This SDK can be downloaded from
+ <a href="http://www.microsoft.com/downloads/details.aspx?FamilyId=FD044A42-9912-42A3-9A9E-D857199F888E&displaylang=en">
+ Microsoft DirectX 9.0 SDK (Summer 2004)</a>.
+ If the link above becomes obsolete, the SDK can be found from
+ <a href="http://download.microsoft.com">the Microsoft Download Site</a>
+ (search with "DirectX 9.0 SDK Update Summer 2004").
+ The location of this SDK can be set with
+ <tt><a href="#ALT_DXSDK_PATH">ALT_DXSDK_PATH</a></tt>
+ but it's normally found via the DirectX environment variable
+ <tt>DXSDK_DIR</tt>.
+ </blockquote>
+
+ <a name="msvcrt">
+ <strong><tt>MSVCRT.DLL</tt></strong>
+ </a>
+
+ <blockquote>
+ <p>
+ <strong>i586 only:</strong>
+ The
+ OpenJDK
+ 32bit build requires
+ access to <tt>MSVCRT.DLL</tt>
+ version 6.00.8337.0 or newer.
+ If the <tt>MSVCRT.DLL</tt> is not installed in
+ the system32 directory set the
+ <a href="#ALT_MSVCRT_DLL_PATH"><tt>ALT_MSVCRT_DLL_PATH</tt></a>
+ variable to the location.
+ <p>
+ <strong>X64 only:</strong>
+ The OpenJDK 64bit build requires access to
+ <tt>MSVCRT.DLL</tt> version 7.0.3790.0 or newer, which is
+ usually supplied by the
+ <a href="#mssdk">Platform SDK</a>.
+ If it is not available from the Platform SDK,
+ set the
+ <a href="#ALT_MSVCRT_DLL_PATH"><tt>ALT_MSVCRT_DLL_PATH</tt></a>
+ variable to the location.
+ </blockquote>
+
+ <a name="msvcr71">
+ <strong><tt>MSVCR71.DLL</tt></strong>
+ </a>
+
+ <blockquote>
+ <p>
+ <strong>i586 only:</strong>
+ The
+ OpenJDK
+ build requires access to
+ MSVCR71.DLL version 7.10.3052.4 or newer which should be
+ supplied by the
+ <a href="#msvc">Visual Studio product</a>
+ If the <tt>MSVCR71.DLL</tt> is not available from the
+ Visual Studio product
+ set the
+ <a href="#ALT_MSVCR71_DLL_PATH"><tt>ALT_MSVCR71_DLL_PATH</tt></a>
+ variable to the location.
+ </blockquote>
+
+ </blockquote>
+
+
+</blockquote>
+
+
+<hr noshade="noshade" size="3">
+
+<h2><a name="creating">Creating the Build</a></h2>
+
+<blockquote>
+ <p>
+ Once a machine is setup to build the
+ OpenJDK,
+ the steps to create the
+ build are fairly simple.
+ The various ALT settings can either be made into variables
+ or can be supplied on the
+ <a href="#gmake"><tt><i>gmake</i></tt></a>
+ command.
+ <p>
+ <ol>
+ <li>Use the sanity rule to double check all the ALT settings:
+ <blockquote>
+ <tt>
+ <i>gmake</i>
+ sanity
+ [ARCH_DATA_MODEL=<i>32 or 64</i>]
+ [other "ALT_" overrides]
+ </tt>
+ </blockquote>
+ </li>
+ <li>Start the build with the command:
+ <blockquote>
+ <tt>
+ <i>gmake</i>
+ [ARCH_DATA_MODEL=<i>32 or 64</i>]
+ [ALT_OUTPUTDIR=<i>output_directory</i>]
+ [other "ALT_" overrides]
+ </tt>
+ </blockquote>
+ </li>
+ </ol>
+ <p>
+ <strong>Solaris:</strong>
+ Note that ARCH_DATA_MODEL is really only needed on Solaris to
+ indicate you want to built the 64-bit version.
+ And before the Solaris 64-bit binaries can be used, they
+ must be merged with the binaries from a separate 32-bit build.
+ The merged binaries may then be used in either 32-bit or 64-bit mode, with
+ the selection occurring at runtime
+ with the <tt>-d32</tt> or <tt>-d64</tt> options.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="testing">Testing the Build</a></h2>
+
+<blockquote>
+ <p>
+ When the build is completed, you should see the generated
+ binaries and associated files in the <tt>j2sdk-image</tt>
+ directory in the output directory.
+ The default output directory is
+ <tt>build/<i>platform</i></tt>,
+ where <tt><i>platform</i></tt> is one of
+ <tt><ul>
+ <li>solaris-sparc</li>
+ <li>solaris-sparcv9</li>
+ <li>solaris-i586</li>
+ <li>solaris-amd64</li>
+ <li>linux-i586</li>
+ <li>linux-amd64</li>
+ <li>windows-i586</li>
+ <li>windows-amd64</li>
+ </ul></tt>
+ In particular, the
+ <tt>build/<i>platform</i>/j2sdk-image/bin</tt>
+ directory should contain executables for the
+ OpenJDK
+ tools and utilities.
+ <p>
+ You can test that the build completed properly by using the build
+ to run the various demos that you will find in the
+ <tt>build/<i>platform</i>/j2sdk-image/demo</tt>
+ directory.
+ <p>
+ The provided regression tests can be run with the <tt>jtreg</tt>
+ utility from
+ <a href="http://openjdk.java.net/jtreg/">the jtreg site</a>.
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="variables">Environment/Make Variables</a></h2>
+
+<p>
+Some of the
+environment or make variables (just called <b>variables</b> in this
+document) that can impact the build are:
+
+<blockquote>
+
+ <dl>
+
+ <dt><a name="path"><tt>PATH</tt></a> </dt>
+ <dd>Typically you want to set the <tt>PATH</tt> to include:
+ <ul>
+ <li>The location of the GNU make binary</li>
+ <li>The location of the JDK 6 <tt>java</tt>
+ (see <a href="#bootjdk">Bootstrap JDK</a>)</li>
+ <li>The location of the C/C++ compilers
+ (see <a href="#compilers"><tt>compilers</tt></a>)</li>
+ <li>The location or locations for the Unix command utilities
+ (e.g. <tt>/usr/bin</tt>)</li>
+ </ul>
+ </dd>
+
+ <dt><a name="arch_data_model"><tt>ARCH_DATA_MODEL</tt></a></dt>
+ <dd>The <tt>ARCH_DATA_MODEL</tt> variable
+ is used to specify whether the build is to generate 32-bit or 64-bit
+ binaries.
+ The Solaris build supports either 32-bit or 64-bit builds, but
+ Windows and Linux will support only one, depending on the specific
+ OS being used.
+ Normally, setting this variable is only necessary on Solaris.
+ Set <tt>ARCH_DATA_MODEL</tt> to <tt>32</tt> for generating 32-bit binaries,
+ or to <tt>64</tt> for generating 64-bit binaries.
+ </dd>
+
+ <dt><a name="ALT_BOOTDIR"><tt>ALT_BOOTDIR</tt></a></dt>
+ <dd>
+ The location of the bootstrap JDK installation.
+ See <a href="#bootjdk">Bootstrap JDK</a> for more information.
+ You should always install your own local Bootstrap JDK and
+ always set <tt>ALT_BOOTDIR</tt> explicitly.
+ </dd>
+
+ <dt><a name="ALT_OUTPUTDIR"><tt>ALT_OUTPUTDIR</tt></a> </dt>
+ <dd>
+ An override for specifying the (absolute) path of where the
+ build output is to go.
+ The default output directory will be build/<i>platform</i>.
+ </dd>
+
+ <dt><a name="ALT_COMPILER_PATH"><tt>ALT_COMPILER_PATH</tt></a> </dt>
+ <dd>
+ The location of the C/C++ compiler.
+ The default varies depending on the platform.
+ </dd>
+
+ <dt><tt><a name="ALT_CACERTS_FILE">ALT_CACERTS_FILE</a></tt></dt>
+ <dd>
+ The location of the <a href="#cacerts">cacerts</a> file.
+ The default will refer to
+ <tt>jdk/src/share/lib/security/cacerts</tt>.
+ </dd>
+
+ <dt><a name="ALT_BINARY_PLUGS_PATH"><tt>ALT_BINARY_PLUGS_PATH</tt></a></dt>
+ <dd>
+ The location of the binary plugs installation.
+ See <a href="#binaryplugs">Binary Plugs</a> for more information.
+ You should always have a local copy of a
+ recent Binary Plugs install image
+ and set this variable to that location.
+ </dd>
+
+ <dt><a name="ALT_CUPS_HEADERS_PATH"><tt>ALT_CUPS_HEADERS_PATH</tt></a> </dt>
+ <dd>
+ The location of the CUPS header files.
+ See <a href="#cups">CUPS information</a> for more information.
+ If this path does not exist the fallback path is
+ <tt>/usr/include</tt>.
+ </dd>
+
+
+ <dt><a name="ALT_FREETYPE_LIB_PATH"><tt>ALT_FREETYPE_LIB_PATH</tt></a></dt>
+ <dd>
+ The location of the FreeType shared library.
+ See <a href="#freetype">FreeType information</a> for details.
+ </dd>
+
+ <dt><a name="ALT_FREETYPE_HEADERS_PATH"><tt>ALT_FREETYPE_HEADERS_PATH</tt></a></dt>
+ <dd>
+ The location of the FreeType header files.
+ See <a href="#freetype">FreeType information</a> for details.
+ </dd>
+
+ <dt><strong>Windows specific:</strong></dt>
+ <dd>
+ <dl>
+ <dt><a name="ALT_MSDEVTOOLS_PATH"><tt>ALT_MSDEVTOOLS_PATH</tt></a> </dt>
+ <dd>
+ The location of the Microsoft Visual Studio .NET 2003
+ tools 'bin' directory.
+ The default is usually derived from
+ <a href="#ALT_COMPILER_PATH"><tt>ALT_COMPILER_PATH</tt></a>.
+ </dd>
+
+ <dt><tt><a name="ALT_DXSDK_PATH">ALT_DXSDK_PATH</a></tt> </dt>
+ <dd>
+ The location of the
+ <a href="#dxsdk">Microsoft DirectX 9 SDK</a>.
+ The default will be to try and use the DirectX environment
+ variable <tt>DXSDK_DIR</tt>,
+ failing that, look in <tt>C:/DXSDK</tt>.
+ </dd>
+
+ <dt><tt><a name="ALT_MSVCRT_DLL_PATH">ALT_MSVCRT_DLL_PATH</a></tt> </dt>
+ <dd>
+ The location of the
+ <a href="#msvcrt"><tt>MSVCRT.DLL</tt></a>.
+ </dd>
+
+ <dt><tt><a name="ALT_MSVCR71_DLL_PATH">ALT_MSVCR71_DLL_PATH</a></tt> </dt>
+ <dd>
+ <strong>i586 only:</strong>
+ The location of the
+ <a href="#msvcr71"><tt>MSVCR71.DLL</tt></a>.
+ </dd>
+ </dl>
+ </dd>
+
+ </dl>
+</blockquote>
+
+<!-- ------------------------------------------------------ -->
+<hr noshade="noshade" size="3">
+
+<h2><a name="troubleshooting">Troubleshooting</a></h2>
+
+<blockquote>
+ <p>
+ A build can fail for any number of reasons.
+ Most failures
+ are a result of trying to build in an environment in which all the
+ pre-build requirements have not been met.
+ The first step in
+ troubleshooting a build failure is to recheck that you have satisfied
+ all the pre-build requirements for your platform.
+ Look for the check list of the platform you are building on in the
+ <a href="#contents">Table of Contents</a>.
+
+ <p>
+ You can validate your build environment by using the <tt>sanity</tt>
+ target.
+ Any errors listed
+ will stop the build from starting, and any warnings may result in
+ a flawed product build.
+ We strongly encourage you to evaluate every
+ sanity check warning and fix it if required, before you proceed
+ further with your build.
+
+ <p>
+ Some of the more common problems with builds are briefly described
+ below, with suggestions for remedies.
+
+ <ul>
+ <li>
+ <b>Slow Builds:</b>
+ <blockquote>
+ <p>
+ If your build machine seems to be overloaded from too many
+ simultaneous C++ compiles, try setting the <tt>HOTSPOT_BUILD_JOBS</tt>
+ variable to <tt>1</tt> (if you're using a multiple CPU
+ machine, setting it to more than the the number of CPUs is probably
+ not a good idea).
+ <p>
+ Creating the javadocs can be very slow, if you are running
+ javadoc, consider skipping that step.
+ <p>
+ Faster hardware and more RAM always helps too.
+ The VM build tends to be CPU intensive (many C++ compiles),
+ and the rest of the JDK will often be disk intensive.
+ <p>
+ Faster compiles are possible using a tool called
+ <a href="http://ccache.samba.org/">ccache</a>.
+ </blockquote>
+ </li>
+ <li>
+ <b>File time issues:</b>
+ <blockquote>
+ <p>
+ If you see warnings that refer to file time stamps, e.g.
+ <blockquote>
+ <i>Warning message:</i><tt> File `xxx' has modification time in
+ the future.</tt>
+ <br>
+ <i>Warning message:</i> <tt> Clock skew detected. Your build may
+ be incomplete.</tt>
+ </blockquote>
+ <p>
+ These warnings can occur when the clock on the build machine is out of
+ sync with the timestamps on the source files. Other errors, apparently
+ unrelated but in fact caused by the clock skew, can occur along with
+ the clock skew warnings. These secondary errors may tend to obscure the
+ fact that the true root cause of the problem is an out-of-sync clock.
+ For example, an out-of-sync clock has been known to cause an old
+ version of javac to be used to compile some files, resulting in errors
+ when the pre-1.4 compiler ran across the new <tt>assert</tt> keyword
+ in the 1.4 source code.
+ <p>
+ If you see these warnings, reset the clock on the build
+ machine, run "<tt><i>gmake</i> clobber</tt>" or delete the directory
+ containing the build output, and restart the build from the beginning.
+ </blockquote>
+ </li>
+ <li>
+ <b>Error message: <tt>Trouble writing out table to disk</tt></b>
+ <blockquote>
+ <p>
+ Increase the amount of swap space on your build machine.
+ </blockquote>
+ </li>
+ <li>
+ <b>Error Message: <tt>libstdc++ not found:</tt></b>
+ <blockquote>
+ This is caused by a missing libstdc++.a library.
+ This is installed as part of a specific package
+ (e.g. libstdc++.so.devel.386).
+ By default some 64bit Linux versions (e.g. Fedora)
+ only install the 64bit version of the libstdc++ package.
+ Various parts of the JDK build require a static
+ link of the C++ runtime libraries to allow for maximum
+ portability of the built images.
+ </blockquote>
+ </li>
+ <li>
+ <b>Error Message: <tt>cannot restore segment prot after reloc</tt></b>
+ <blockquote>
+ This is probably an issue with SELinux (See
+ <a href="http://en.wikipedia.org/wiki/SELinux">http://en.wikipedia.org/wiki/SELinux</a>).
+ Parts of the VM is built without the <tt>-fPIC</tt> for
+ performance reasons.
+ <p>
+ To completely disable SELinux:
+ <ol><tt>
+
+ <li>$ su root</li>
+ <li># system-config-securitylevel</li>
+ <li>In the window that appears, select the SELinux tab</li>
+ <li>Disable SELinux</li>
+ </ol></tt>
+ <p>
+ Alternatively, instead of completely disabling it you could
+ disable just this one check.
+ <ol><tt>
+ <li>Select System->Administration->SELinux Management</li>
+ <li>In the SELinux Management Tool which appears,
+ select "Boolean" from the menu on the left</li>
+ <li>Expand the "Memory Protection" group</li>
+ <li>Check the first item, labeled
+ "Allow all unconfined executables to use libraries requiring text relocation ..."</li>
+ </ol></tt>
+ </blockquote>
+ </li>
+ </ul>
+</blockquote>
+
+<hr noshade="noshade" size="3">