1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2 <html> 3 <head> 4 <title>OpenJDK Build README</title> 5 </head> 6 <body style="background-color:aquamarine"> 7 8 <!-- ====================================================== --> 9 <table width="100%"> 10 <tr> 11 <td align="center"> 12 <img alt="OpenJDK" 13 src="http://openjdk.java.net/images/openjdk.png" 14 width=256> 15 </td> 16 </tr> 17 <tr> 18 <td align=center> 19 <h1>OpenJDK Build README</h1> 20 </td> 21 </tr> 22 </table> 23 24 <!-- ====================================================== --> 25 <hr> 26 <h2><a name="introduction">Introduction</a></h2> 27 <blockquote> 28 This README file contains build instructions for the 29 <a href="http://openjdk.java.net" target="_blank">OpenJDK</a>. 30 Building the source code for the 31 OpenJDK 32 requires 33 a certain degree of technical expertise. 34 35 <!-- ====================================================== --> 36 <h3>!!!!!!!!!!!!!!! THIS IS A MAJOR RE-WRITE of this document. !!!!!!!!!!!!!</h3> 37 <blockquote> 38 Some Headlines: 39 <ul> 40 <li> 41 The build is now a "<code>configure && make</code>" style build 42 </li> 43 <li> 44 Any GNU make 3.81 or newer should work 45 </li> 46 <li> 47 The build should scale, i.e. more processors should 48 cause the build to be done in less wall-clock time 49 </li> 50 <li> 51 Nested or recursive make invocations have been significantly 52 reduced, as has the total fork/exec or spawning 53 of sub processes during the build 54 </li> 55 <li> 56 Windows MKS usage is no longer supported 57 </li> 58 <li> 59 Windows Visual Studio <code>vsvars*.bat</code> and 60 <code>vcvars*.bat</code> files are run automatically 61 </li> 62 <li> 63 Ant is no longer used when building the OpenJDK 64 </li> 65 <li> 66 Use of ALT_* environment variables for configuring the 67 build is no longer supported 68 </li> 69 </ul> 70 </blockquote> 71 </blockquote> 72 73 <!-- ====================================================== --> 74 <hr> 75 <h2><a name="contents">Contents</a></h2> 76 <blockquote> 77 <ul> 78 <li><a href="#introduction">Introduction</a></li> 79 80 <li><a href="#hg">Use of Mercurial</a> 81 <ul> 82 <li><a href="#get_source">Getting the Source</a></li> 83 <li><a href="#repositories">Repositories</a></li> 84 </ul> 85 </li> 86 87 <li><a href="#building">Building</a> 88 <ul> 89 <li><a href="#setup">System Setup</a> 90 <ul> 91 <li><a href="#linux">Linux</a></li> 92 <li><a href="#solaris">Solaris</a></li> 93 <li><a href="#macosx">Mac OS X</a></li> 94 <li><a href="#windows">Windows</a></li> 95 </ul> 96 </li> 97 <li><a href="#configure">Configure</a></li> 98 <li><a href="#make">Make</a></li> 99 </ul> 100 </li> 101 <li><a href="#testing">Testing</a></li> 102 </ul> 103 <hr> 104 <ul> 105 <li><a href="#hints">Appendix A: Hints and Tips</a> 106 <ul> 107 <li><a href="#faq">FAQ</a></li> 108 <li><a href="#performance">Build Performance Tips</a></li> 109 <li><a href="#troubleshooting">Troubleshooting</a></li> 110 </ul> 111 </li> 112 <li><a href="#gmake">Appendix B: GNU Make Information</a></li> 113 <li><a href="#buildenvironments">Appendix C: Build Environments</a></li> 114 115 <!-- Leave out 116 <li><a href="#mapping">Appendix D: Mapping Old Builds to the New Builds</a></li> 117 --> 118 119 </ul> 120 </blockquote> 121 122 <!-- ====================================================== --> 123 <hr> 124 <h2><a name="hg">Use of Mercurial</a></h2> 125 <blockquote> 126 The OpenJDK sources are maintained with the revision control system 127 <a href="http://mercurial.selenic.com/wiki/Mercurial">Mercurial</a>. 128 If you are new to Mercurial, please see the 129 <a href="http://mercurial.selenic.com/wiki/BeginnersGuides"> 130 Beginner Guides</a> 131 or refer to the <a href="http://hgbook.red-bean.com/"> 132 Mercurial Book</a>. 133 The first few chapters of the book provide an excellent overview of 134 Mercurial, what it is and how it works. 135 <br> 136 For using Mercurial with the OpenJDK refer to the 137 <a href="http://openjdk.java.net/guide/repositories.html#installConfig"> 138 Developer Guide: Installing and Configuring Mercurial</a> 139 section for more information. 140 141 <h3><a name="get_source">Getting the Source</a></h3> 142 <blockquote> 143 To get the entire set of OpenJDK Mercurial repositories 144 use the script <code>get_source.sh</code> located in the 145 root repository: 146 <blockquote> 147 <code> 148 hg clone http://hg.openjdk.java.net/jdk8/jdk8 149 <i>YourOpenJDK</i> 150 <br> 151 cd <i>YourOpenJDK</i> 152 <br> 153 bash ./get_source.sh 154 </code> 155 </blockquote> 156 Once you have all the repositories, keep in mind that each 157 repository is its own independent repository. 158 You can also re-run <code>./get_source.sh</code> anytime to 159 pull over all the latest changesets in all the repositories. 160 This set of nested repositories has been given the term 161 "forest" and there are various ways to apply the same 162 <code>hg</code> command to each of the repositories. 163 For example, the script <code>make/scripts/hgforest.sh</code> 164 can be used to repeat the same <code>hg</code> 165 command on every repository, e.g. 166 <blockquote> 167 <code> 168 cd <i>YourOpenJDK</i> 169 <br> 170 bash ./make/scripts/hgforest.sh status 171 </code> 172 </blockquote> 173 </blockquote> 174 175 <h3><a name="repositories">Repositories</a></h3> 176 <blockquote> 177 <p>The set of repositories and what they contain:</p> 178 <table border="1"> 179 <thead> 180 <tr> 181 <th>Repository</th> 182 <th>Contains</th> 183 </tr> 184 </thead> 185 <tbody> 186 <tr> 187 <td> 188 . (root) 189 </td> 190 <td> 191 common configure and makefile logic 192 </td> 193 </tr> 194 <tr> 195 <td> 196 hotspot 197 </td> 198 <td> 199 source code and make files for building 200 the OpenJDK Hotspot Virtual Machine 201 </td> 202 </tr> 203 <tr> 204 <td> 205 langtools 206 </td> 207 <td> 208 source code for the OpenJDK javac and language tools 209 </td> 210 </tr> 211 <tr> 212 <td> 213 jdk 214 </td> 215 <td> 216 source code and make files for building 217 the OpenJDK runtime libraries and misc files 218 </td> 219 </tr> 220 <tr> 221 <td> 222 jaxp 223 </td> 224 <td> 225 source code for the OpenJDK JAXP functionality 226 </td> 227 </tr> 228 <tr> 229 <td> 230 jaxws 231 </td> 232 <td> 233 source code for the OpenJDK JAX-WS functionality 234 </td> 235 </tr> 236 <tr> 237 <td> 238 corba 239 </td> 240 <td> 241 source code for the OpenJDK Corba functionality 242 </td> 243 </tr> 244 <tr> 245 <td> 246 nashorn 247 </td> 248 <td> 249 source code for the OpenJDK JavaScript implementation 250 </td> 251 </tr> 252 </tbody> 253 </table> 254 </blockquote> 255 256 <h3><a name="guidelines">Repository Source Guidelines</a></h3> 257 <blockquote> 258 There are some very basic guidelines: 259 <ul> 260 <li> 261 Use of whitespace in source files 262 (.java, .c, .h, .cpp, and .hpp files) 263 is restricted. 264 No TABs, no trailing whitespace on lines, and files 265 should not terminate in more than one blank line. 266 </li> 267 <li> 268 Files with execute permissions should not be added 269 to the source repositories. 270 </li> 271 <li> 272 All generated files need to be kept isolated from 273 the files 274 maintained or managed by the source control system. 275 The standard area for generated files is the top level 276 <code>build/</code> directory. 277 </li> 278 <li> 279 The default build process should be to build the product 280 and nothing else, in one form, e.g. a product (optimized), 281 debug (non-optimized, -g plus assert logic), or 282 fastdebug (optimized, -g plus assert logic). 283 </li> 284 <li> 285 The <tt>.hgignore</tt> file in each repository 286 must exist and should 287 include <tt>^build/</tt>, <tt>^dist/</tt> and 288 optionally any 289 <tt>nbproject/private</tt> directories. 290 <strong>It should NEVER</strong> include 291 anything in the 292 <tt>src/</tt> or <tt>test/</tt> 293 or any managed directory area of a repository. 294 </li> 295 <li> 296 Directory names and file names should never contain 297 blanks or 298 non-printing characters. 299 </li> 300 <li> 301 Generated source or binary files should NEVER be added to 302 the repository (that includes <tt>javah</tt> output). 303 There are some exceptions to this rule, in particular 304 with some of the generated configure scripts. 305 </li> 306 <li> 307 Files not needed for typical building 308 or testing of the repository 309 should not be added to the repository. 310 </li> 311 </ul> 312 </blockquote> 313 314 </blockquote> 315 316 <!-- ====================================================== --> 317 <hr> 318 <h2><a name="building">Building</a></h2> 319 <blockquote> 320 The very first step in building the OpenJDK is making sure the 321 system itself has everything it needs to do OpenJDK builds. 322 Once a system is setup, it generally doesn't need to be done again. 323 <br> 324 Building the OpenJDK is now done with running a 325 <a href="#configure"><code>configure</code></a> 326 script which will try and find and verify you have everything 327 you need, followed by running 328 <a href="#gmake"><code>make</code></a>, e.g. 329 <blockquote> 330 <b> 331 <code> 332 bash ./configure<br> 333 make all 334 </code> 335 </b> 336 </blockquote> 337 Where possible the <code>configure</code> script will attempt to located the 338 various components in the default locations or via component 339 specific variable settings. 340 When the normal defaults fail or components cannot be found, 341 additional <code>configure</code> options may be necessary to help <code>configure</code> 342 find the necessary tools for the build, or you may need to 343 re-visit the setup of your system due to missing software 344 packages. 345 <br> 346 <strong>NOTE:</strong> The <code>configure</code> script 347 file does not have 348 execute permissions and will need to be explicitly run with 349 <code>bash</code>, 350 see the <a href="#guidelines">source guidelines</a>. 351 352 <!-- ====================================================== --> 353 <hr> 354 <h3><a name="setup">System Setup</a></h3> 355 <blockquote> 356 Before even attempting to use a system to build the OpenJDK 357 there are some very basic system setups needed. 358 For all systems: 359 <ul> 360 <li> 361 Be sure the GNU make utility is version 3.81 or newer, 362 e.g. run "<code>make -version</code>" 363 </li> 364 <li> 365 Install a 366 <a name="bootjdk">Bootstrap JDK</a>. 367 All OpenJDK builds require access to a previously released 368 JDK called the <i>bootstrap JDK</i> or <i>boot JDK.</i> 369 The general rule is that the bootstrap JDK 370 must be an instance of the previous major 371 release of the JDK. In addition, there may be 372 a requirement to use a release at or beyond a 373 particular update level. 374 <br> <br> 375 376 <b><i>Building JDK 8 requires use of a version 377 of JDK 7 that is at Update 7 or newer. JDK 8 378 developers should not use JDK 8 as the boot 379 JDK, to ensure that JDK 8 dependencies are 380 not introduced into the parts of the system 381 that are built with JDK 7.</i></b> 382 383 <br> <br> 384 The JDK 7 binaries can be downloaded from Oracle's 385 <a href="http://www.oracle.com/technetwork/java/javase/downloads/index.html" 386 target="_blank">JDK 7 download site</a>. 387 For build performance reasons 388 is very important that this bootstrap JDK be made available 389 on the local disk of the machine doing the build. 390 You should add its <code>bin</code> directory 391 to the <code>PATH</code> environment variable. 392 If <code>configure</code> has any issues finding this JDK, you may 393 need to use the <code>configure</code> option 394 <code>--with-boot-jdk</code>. 395 </li> 396 <li> 397 Ensure that GNU make, the Bootstrap JDK, 398 and the compilers are all 399 in your PATH environment variable 400 </li> 401 </ul> 402 And for specific systems: 403 <table border="1"> 404 <thead> 405 <tr> 406 <th>Linux</th> 407 <th>Solaris</th> 408 <th>Windows</th> 409 <th>Mac OS X</th> 410 </tr> 411 </thead> 412 <tbody> 413 <tr> 414 <td> 415 Install all the software development 416 packages needed including 417 <a href="#alsa">alsa</a>, 418 <a href="#freetype">freetype</a>, 419 <a href="#cups">cups</a>, and 420 <a href="#xrender">xrender</a>. 421 <br> 422 See 423 <a href="#SDBE">specific system packages</a>. 424 </td> 425 <td> 426 Install all the software development 427 packages needed including 428 <a href="#studio">Studio Compilers</a>, 429 <a href="#freetype">freetype</a>, 430 <a href="#cups">cups</a>, and 431 <a href="#xrender">xrender</a>. 432 <br> 433 See 434 <a href="#SDBE">specific system packages</a>. 435 </td> 436 <td> 437 <ul> 438 <li> 439 Install one of 440 <a href="#cygwin">CYGWIN</a> or 441 <a href="#msys">MinGW/MSYS</a> 442 </li> 443 <li> 444 Install 445 <a href="#vs2010">Visual Studio 2010</a> 446 </li> 447 <li> 448 Install the 449 <a href="#dxsdk">Microsoft DirectX SDK</a> 450 </li> 451 </ul> 452 </td> 453 <td> 454 Install 455 <a href="https://developer.apple.com/xcode/">XCode 4.5.2</a> 456 and also install the "Command line tools" found under the 457 preferences pane "Downloads" 458 </td> 459 </tr> 460 </tbody> 461 </table> 462 463 <h4><a name="linux">Linux</a></h4> 464 <blockquote> 465 With Linux, try and favor the system packages over 466 building your own 467 or getting packages from other areas. 468 Most Linux builds should be possible with the system's 469 available packages. 470 <br> 471 Note that some Linux systems have a habit of pre-populating 472 your environment variables for you, for example <code>JAVA_HOME</code> 473 might get pre-defined for you to refer to the JDK installed on 474 your Linux system. 475 You will need to unset <code>JAVA_HOME</code>. 476 It's a good idea to run <code>env</code> and verify the 477 environment variables you are getting from the default system 478 settings make sense for building the OpenJDK. 479 480 </blockquote> 481 482 <h4><a name="solaris">Solaris</a></h4> 483 <blockquote> 484 <h5><a name="studio">Studio Compilers</a></h5> 485 <blockquote> 486 At a minimum, the 487 <a href="http://www.oracle.com/technetwork/server-storage/solarisstudio/downloads/index.htm" target="_blank"> 488 Studio 12 Update 1 Compilers</a> 489 (containing version 5.10 of the C and C++ compilers) is required, 490 including specific patches. 491 <p> 492 The Solaris SPARC patch list is: 493 <ul> 494 <li> 495 118683-05: SunOS 5.10: Patch for profiling libraries and assembler 496 </li> 497 <li> 498 119963-21: SunOS 5.10: Shared library patch for C++ 499 </li> 500 <li> 501 120753-08: SunOS 5.10: Microtasking libraries (libmtsk) patch 502 </li> 503 <li> 504 128228-09: Sun Studio 12 Update 1: Patch for Sun C++ Compiler 505 </li> 506 <li> 507 141860-03: Sun Studio 12 Update 1: Patch for Compiler Common patch for Sun C C++ F77 F95 508 </li> 509 <li> 510 141861-05: Sun Studio 12 Update 1: Patch for Sun C Compiler 511 </li> 512 <li> 513 142371-01: Sun Studio 12.1 Update 1: Patch for dbx 514 </li> 515 <li> 516 143384-02: Sun Studio 12 Update 1: Patch for debuginfo handling 517 </li> 518 <li> 519 143385-02: Sun Studio 12 Update 1: Patch for Compiler Common patch for Sun C C++ F77 F95 520 </li> 521 <li> 522 142369-01: Sun Studio 12.1: Patch for Performance Analyzer Tools 523 </li> 524 </ul> 525 <p> 526 The Solaris X86 patch list is: 527 <ul> 528 <li> 529 119961-07: SunOS 5.10_x86, x64, Patch for profiling libraries and assembler 530 </li> 531 <li> 532 119964-21: SunOS 5.10_x86: Shared library patch for C++_x86 533 </li> 534 <li> 535 120754-08: SunOS 5.10_x86: Microtasking libraries (libmtsk) patch 536 </li> 537 <li> 538 141858-06: Sun Studio 12 Update 1_x86: Sun Compiler Common patch for x86 backend 539 </li> 540 <li> 541 128229-09: Sun Studio 12 Update 1_x86: Patch for C++ Compiler 542 </li> 543 <li> 544 142363-05: Sun Studio 12 Update 1_x86: Patch for C Compiler 545 </li> 546 <li> 547 142368-01: Sun Studio 12.1_x86: Patch for Performance Analyzer Tools 548 </li> 549 </ul> 550 <p> 551 Place the <code>bin</code> directory in <code>PATH</code>. 552 <p> 553 The Oracle Solaris Studio Express compilers at: 554 <a href="http://www.oracle.com/technetwork/server-storage/solarisstudio/downloads/index-jsp-142582.html" target="_blank"> 555 Oracle Solaris Studio Express Download site</a> 556 are also an option, although these compilers have not 557 been extensively used yet. 558 </blockquote> 559 560 </blockquote> <!-- Solaris --> 561 562 <h4><a name="windows">Windows</a></h4> 563 <blockquote> 564 565 <h5><a name="toolkit">Windows Unix Toolkit</a></h5> 566 <blockquote> 567 Building on Windows requires a Unix-like environment, notably a 568 Unix-like shell. 569 There are several such environments available of which 570 <a href="http://www.cygwin.com/">Cygwin</a> and 571 <a href="http://www.mingw.org/wiki/MSYS">MinGW/MSYS</a> are 572 currently supported for 573 the OpenJDK build. One of the differences of these 574 systems from standard Windows tools is the way 575 they handle Windows path names, particularly path names which contain 576 spaces, backslashes as path separators and possibly drive letters. 577 Depending 578 on the use case and the specifics of each environment these path 579 problems can 580 be solved by a combination of quoting whole paths, translating 581 backslashes to 582 forward slashes, escaping backslashes with additional backslashes and 583 translating the path names to their 584 <a href="http://en.wikipedia.org/wiki/8.3_filename"> 585 "8.3" version</a>. 586 587 <h6><a name="cygwin">CYGWIN</a></h6> 588 <blockquote> 589 CYGWIN is an open source, Linux-like environment which tries to emulate 590 a complete POSIX layer on Windows. It tries to be smart about path names 591 and can usually handle all kinds of paths if they are correctly quoted 592 or escaped although internally it maps drive letters <code><drive>:</code> 593 to a virtual directory <code>/cygdrive/<drive></code>. 594 <p> 595 You can always use the <code>cygpath</code> utility to map pathnames with spaces 596 or the backslash character into the <code>C:/</code> style of pathname 597 (called 'mixed'), e.g. <code>cygpath -s -m "<i>path</i>"</code>. 598 </p> 599 <p> 600 Note that the use of CYGWIN creates a unique problem with regards to 601 setting <a href="#path"><code>PATH</code></a>. Normally on Windows 602 the <code>PATH</code> variable contains directories 603 separated with the ";" character (Solaris and Linux use ":"). 604 With CYGWIN, it uses ":", but that means that paths like "C:/path" 605 cannot be placed in the CYGWIN version of <code>PATH</code> and 606 instead CYGWIN uses something like <code>/cygdrive/c/path</code> 607 which CYGWIN understands, but only CYGWIN understands. 608 </p> 609 <p> 610 The OpenJDK build requires CYGWIN version 1.7.16 or newer. 611 Information about CYGWIN can 612 be obtained from the CYGWIN website at 613 <a href="http://www.cygwin.com" target="_blank">www.cygwin.com</a>. 614 </p> 615 <p> 616 By default CYGWIN doesn't install all the tools required for building 617 the OpenJDK. 618 Along with the default installation, you need to install 619 the following tools. 620 <blockquote> 621 <table border="1"> 622 <thead> 623 <tr> 624 <td>Binary Name</td> 625 <td>Category</td> 626 <td>Package</td> 627 <td>Description</td> 628 </tr> 629 </thead> 630 <tbody> 631 <tr> 632 <td>ar.exe</td> 633 <td>Devel</td> 634 <td>binutils</td> 635 <td> 636 The GNU assembler, linker and binary utilities 637 </td> 638 </tr> 639 <tr> 640 <td>make.exe</td> 641 <td>Devel</td> 642 <td>make</td> 643 <td> 644 The GNU version of the 'make' utility built for CYGWIN 645 </td> 646 </tr> 647 <tr> 648 <td>m4.exe</td> 649 <td>Interpreters</td> 650 <td>m4</td> 651 <td> 652 GNU implementation of the traditional Unix macro 653 processor 654 </td> 655 </tr> 656 <tr> 657 <td>cpio.exe</td> 658 <td>Utils</td> 659 <td>cpio</td> 660 <td> 661 A program to manage archives of files 662 </td> 663 </tr> 664 <tr> 665 <td>gawk.exe</td> 666 <td>Utils</td> 667 <td>awk</td> 668 <td> 669 Pattern-directed scanning and processing language 670 </td> 671 </tr> 672 <tr> 673 <td>file.exe</td> 674 <td>Utils</td> 675 <td>file</td> 676 <td> 677 Determines file type using 'magic' numbers 678 </td> 679 </tr> 680 <tr> 681 <td>zip.exe</td> 682 <td>Archive</td> 683 <td>zip</td> 684 <td> 685 Package and compress (archive) files 686 </td> 687 </tr> 688 <tr> 689 <td>unzip.exe</td> 690 <td>Archive</td> 691 <td>unzip</td> 692 <td> 693 Extract compressed files in a ZIP archive 694 </td> 695 </tr> 696 <tr> 697 <td>free.exe</td> 698 <td>System</td> 699 <td>procps</td> 700 <td> 701 Display amount of free and used memory in the system 702 </td> 703 </tr> 704 </tbody> 705 </table> 706 </blockquote> 707 Note that the CYGWIN software can conflict with other non-CYGWIN 708 software on your Windows system. 709 CYGWIN provides a 710 <a href="http://cygwin.com/faq/faq.using.html" target="_blank">FAQ</a> for 711 known issues and problems, of particular interest is the 712 section on 713 <a href="http://cygwin.com/faq/faq.using.html#faq.using.bloda" target="_blank"> 714 BLODA (applications that interfere with CYGWIN)</a>. 715 </blockquote> 716 717 <h6><a name="msys">MinGW/MSYS</a></h6> 718 <blockquote> 719 MinGW ("Minimalist GNU for Windows") is a collection of free Windows 720 specific header files and import libraries combined with GNU toolsets that 721 allow one to produce native Windows programs that do not rely on any 722 3rd-party C runtime DLLs. MSYS is a supplement to MinGW which allows building 723 applications and programs which rely on traditional UNIX tools to 724 be present. Among others this includes tools like <code>bash</code> 725 and <code>make</code>. 726 See <a href="http://www.mingw.org/wiki/MSYS" target="_blank">MinGW/MSYS</a> 727 for more information. 728 <p> 729 Like Cygwin, MinGW/MSYS can handle different types of path formats. They 730 are internally converted to paths with forward slashes and drive letters 731 <code><drive>:</code> replaced by a virtual 732 directory <code>/<drive></code>. Additionally, MSYS automatically 733 detects binaries compiled for the MSYS environment and feeds them with the 734 internal, Unix-style path names. If native Windows applications are called 735 from within MSYS programs their path arguments are automatically converted 736 back to Windows style path names with drive letters and backslashes as 737 path separators. This may cause problems for Windows applications which 738 use forward slashes as parameter separator (e.g. <code>cl /nologo /I</code>) 739 because MSYS may wrongly <a href="http://mingw.org/wiki/Posix_path_conversion"> 740 replace such parameters by drive letters</a>. 741 </p> 742 <p> 743 In addition to the tools which will be installed 744 by default, you have 745 to manually install the 746 <code>msys-zip</code> and 747 <code>msys-unzip</code> packages. 748 This can be easily done with the MinGW command line installer: 749 <blockquote> 750 <code>mingw-get.exe install msys-zip</code> 751 <br> 752 <code>mingw-get.exe install msys-unzip</code> 753 </blockquote> 754 </blockquote> 755 756 </blockquote> 757 758 <h5><a name="vs2010">Visual Studio 2010 Compilers</a></h5> 759 <blockquote> 760 <p> 761 The 32-bit and 64-bit OpenJDK Windows build requires 762 Microsoft Visual Studio C++ 2010 (VS2010) Professional 763 Edition or Express compiler. 764 The compiler and other tools are expected to reside 765 in the location defined by the variable 766 <code>VS100COMNTOOLS</code> which 767 is set by the Microsoft Visual Studio installer. 768 </p> 769 <p> 770 Only the C++ part of VS2010 is needed. 771 Try to let the installation go to the default 772 install directory. 773 Always reboot your system after installing VS2010. 774 The system environment variable VS100COMNTOOLS 775 should be 776 set in your environment. 777 </p> 778 <p> 779 Make sure that TMP and TEMP are also set 780 in the environment 781 and refer to Windows paths that exist, 782 like <code>C:\temp</code>, 783 not <code>/tmp</code>, not <code>/cygdrive/c/temp</code>, 784 and not <code>C:/temp</code>. 785 <code>C:\temp</code> is just an example, 786 it is assumed that this area is 787 private to the user, so by default 788 after installs you should 789 see a unique user path in these variables. 790 </p> 791 </blockquote> 792 793 794 </blockquote> <!-- Windows --> 795 796 <h4><a name="macosx">Mac OS X</a></h4> 797 <blockquote> 798 Make sure you get the right XCode version. 799 </blockquote> <!-- Mac OS X --> 800 801 </blockquote> 802 803 <!-- ====================================================== --> 804 <hr> 805 <h3><a name="configure">Configure</a></h3> 806 <blockquote> 807 The basic invocation of the <code>configure</code> script 808 looks like: 809 <blockquote> 810 <b><code>bash ./configure [<i>options</i>]</code></b> 811 </blockquote> 812 This will create an output directory containing the 813 "configuration" and setup an area for the build result. 814 This directory typically looks like: 815 <blockquote> 816 <b><code>build/linux-x64-normal-server-release</code></b> 817 </blockquote> 818 <code>configure</code> will try to figure out what system you are running on 819 and where all necessary build components are. 820 If you have all prerequisites for building installed, 821 it should find everything. 822 If it fails to detect any component automatically, 823 it will exit and inform you about the problem. 824 When this happens, read more below in 825 <a href="#configureoptions">the <code>configure</code> options</a>. 826 <p> 827 Some examples: 828 </p> 829 <table border="1"> 830 <thead> 831 <tr> 832 <th>Description</th> 833 <th>Configure Command Line</th> 834 </tr> 835 </thead> 836 <tbody> 837 <tr> 838 <td>Windows 32bit build with freetype specified</td> 839 <td> 840 <code>bash ./configure --with-freetype=/cygdrive/c/freetype-i586 --with-target-bits=32</code> 841 </td> 842 </tr> 843 <tr> 844 <td>Debug 64bit Build</td> 845 <td> 846 <code>bash ./configure --enable-debug --with-target-bits=64</code> 847 </td> 848 </tr> 849 </tbody> 850 </table> 851 852 <!-- ====================================================== --> 853 <h4><a name="configureoptions">Configure Options</a></h4> 854 <blockquote> 855 Complete details on all the OpenJDK <code>configure</code> options can 856 be seen with: 857 <blockquote> 858 <b><code>bash ./configure --help=short</code></b> 859 </blockquote> 860 Use <code>-help</code> to see all the <code>configure</code> options 861 available. 862 863 You can generate any number of different configurations, 864 e.g. debug, release, 32, 64, etc. 865 866 Some of the more commonly used <code>configure</code> options are: 867 868 <table border="1"> 869 <thead> 870 <tr> 871 <th width="300">OpenJDK Configure Option</th> 872 <th>Description</th> 873 </tr> 874 </thead> 875 <tbody> 876 <tr> 877 <td><b><code>--enable-debug</code></b></td> 878 <td> 879 set the debug level to fastdebug (this is a shorthand for 880 <code>--with-debug-level=fastdebug</code>) 881 </td> 882 </tr> 883 <tr> 884 <td><b><code>--with-alsa=</code></b><i>path</i></td> 885 <td> 886 select the location of the 887 <a name="alsa">Advanced Linux Sound Architecture (ALSA)</a> 888 <br> 889 Version 0.9.1 or newer of the ALSA files are 890 required for building the OpenJDK on Linux. 891 These Linux files are usually available from an "alsa" 892 of "libasound" 893 development package, 894 and it's highly recommended that you try and use 895 the package provided by the particular version of Linux that 896 you are using. 897 </td> 898 </tr> 899 <tr> 900 <td><b><code>--with-boot-jdk=</code></b><i>path</i></td> 901 <td> 902 select the <a href="#bootjdk">Bootstrap JDK</a> 903 </td> 904 </tr> 905 <tr> 906 <td><b><code>--with-boot-jdk-jvmargs=</code></b>"<i>args</i>"</td> 907 <td> 908 provide the JVM options to be used to run the 909 <a href="#bootjdk">Bootstrap JDK</a> 910 </td> 911 </tr> 912 <tr> 913 <td><b><code>--with-cacerts=</code></b><i>path</i></td> 914 <td> 915 select the path to the cacerts file. 916 <br> 917 See <a href="http://en.wikipedia.org/wiki/Certificate_Authority" target="_blank"> 918 http://en.wikipedia.org/wiki/Certificate_Authority</a> 919 for a better understanding of the Certificate Authority (CA). 920 A certificates file named "cacerts" 921 represents a system-wide keystore with CA certificates. 922 In JDK and JRE 923 binary bundles, the "cacerts" file contains root CA certificates from 924 several public CAs (e.g., VeriSign, Thawte, and Baltimore). 925 The source contain a cacerts file 926 without CA root certificates. 927 Formal JDK builders will need to secure 928 permission from each public CA and include the certificates into their 929 own custom cacerts file. 930 Failure to provide a populated cacerts file 931 will result in verification errors of a certificate chain during runtime. 932 By default an empty cacerts file is provided and that should be 933 fine for most JDK developers. 934 </td> 935 </tr> 936 <tr> 937 <td><b><code>--with-cups=</code></b><i>path</i></td> 938 <td> 939 select the CUPS install location 940 <br> 941 The 942 <a name="cups">Common UNIX Printing System (CUPS) Headers</a> 943 are required for building the 944 OpenJDK on Solaris and Linux. 945 The Solaris header files can be obtained by installing 946 the package <strong>SFWcups</strong> from the Solaris Software 947 Companion CD/DVD, these often will be installed into the 948 directory <code>/opt/sfw/cups</code>. 949 <br> 950 The CUPS header files can always be downloaded from 951 <a href="http://www.cups.org" target="_blank">www.cups.org</a>. 952 </td> 953 </tr> 954 <tr> 955 <td><b><code>--with-cups-include=</code></b><i>path</i></td> 956 <td> 957 select the CUPS include directory location 958 </td> 959 </tr> 960 <tr> 961 <td><b><code>--with-debug-level=</code></b><i>level</i></td> 962 <td> 963 select the debug information level of release, 964 fastdebug, or slowdebug 965 </td> 966 </tr> 967 <tr> 968 <td><b><code>--with-dev-kit=</code></b><i>path</i></td> 969 <td> 970 select location of the compiler install or 971 developer install location 972 </td> 973 </tr> 974 <tr> 975 <td><b><code>--with-dxsdk=</code></b><i>path</i></td> 976 <td> 977 select location of the Windows Direct X SDK install 978 <br> 979 The <a name="dxsdk">Microsoft DirectX 9.0 SDK</a> 980 header files and libraries 981 from the Summer 2004 edition 982 are required for building OpenJDK. 983 This SDK can be downloaded from 984 <a href="http://www.microsoft.com/downloads/details.aspx?FamilyId=FD044A42-9912-42A3-9A9E-D857199F888E&displaylang=en" target="_blank"> 985 Microsoft DirectX 9.0 SDK (Summer 2004)</a>. 986 If the link above becomes obsolete, the SDK can be found from 987 <a href="http://download.microsoft.com" target="_blank">the Microsoft Download Site</a> 988 (search with "DirectX 9.0 SDK Update Summer 2004"). 989 Installation usually will set the environment variable 990 <code>DXSDK_DIR</code> to it's install location. 991 </td> 992 </tr> 993 <tr> 994 <td><b><code>--with-freetype=</code></b><i>path</i></td> 995 <td> 996 select the freetype files to use. 997 <br> 998 Expecting the 999 <a name="freetype">freetype</a> libraries under 1000 <code>lib/</code> and the 1001 headers under <code>include/</code>. 1002 <br> 1003 Version 2.3 or newer of FreeType is required. 1004 On Unix systems required files can be available as part of your 1005 distribution (while you still may need to upgrade them). 1006 Note that you need development version of package that 1007 includes both the FreeType library and header files. 1008 <br> 1009 You can always download latest FreeType version from the 1010 <a href="http://www.freetype.org" target="_blank">FreeType website</a>. 1011 <br> 1012 Building the freetype 2 libraries from scratch is also possible, 1013 however on Windows refer to the 1014 <a href="http://freetype.freedesktop.org/wiki/FreeType_DLL"> 1015 Windows FreeType DLL build instructions</a>. 1016 <br> 1017 Note that by default FreeType is built with byte code hinting 1018 support disabled due to licensing restrictions. 1019 In this case, text appearance and metrics are expected to 1020 differ from Sun's official JDK build. 1021 See 1022 <a href="http://freetype.sourceforge.net/freetype2/index.html"> 1023 the SourceForge FreeType2 Home Page 1024 </a> 1025 for more information. 1026 </td> 1027 </tr> 1028 <tr> 1029 <td><b><code>--with-import-hotspot=</code></b><i>path</i></td> 1030 <td> 1031 select the location to find hotspot 1032 binaries from a previous build to avoid building 1033 hotspot 1034 </td> 1035 </tr> 1036 <tr> 1037 <td><b><code>--with-target-bits=</code></b><i>arg</i></td> 1038 <td> 1039 select 32 or 64 bit build 1040 </td> 1041 </tr> 1042 <tr> 1043 <td><b><code>--with-jvm-variants=</code></b><i>variants</i></td> 1044 <td> 1045 select the JVM variants to build from, comma 1046 separated list that can include: 1047 server, client, kernel, zero and zeroshark 1048 </td> 1049 </tr> 1050 <tr> 1051 <td><b><code>--with-memory-size=</code></b><i>size</i></td> 1052 <td> 1053 select the RAM size that GNU make will think 1054 this system has 1055 </td> 1056 </tr> 1057 <tr> 1058 <td><a name="msvcrNN"><b><code>--with-msvcr-dll=</code></b><i>path</i></a></td> 1059 <td> 1060 select the <code>msvcr100.dll</code> 1061 file to include in the 1062 Windows builds (C/C++ runtime library for 1063 Visual Studio). 1064 <br> 1065 This is usually picked up automatically 1066 from the redist 1067 directories of Visual Studio 2010. 1068 </td> 1069 </tr> 1070 <tr> 1071 <td><b><code>--with-num-cores=</code></b><i>cores</i></td> 1072 <td> 1073 select the number of cores to use (processor 1074 count or CPU count) 1075 </td> 1076 </tr> 1077 <tr> 1078 <td><b><code>--with-x=</code></b><i>path</i></td> 1079 <td> 1080 select the location of the X11 and xrender files. 1081 <br> 1082 The 1083 <a name="xrender">XRender Extension Headers</a> 1084 are required for building the 1085 OpenJDK on Solaris and Linux. 1086 <br> 1087 The Linux header files are usually available from a "Xrender" 1088 development package, it's recommended that you try and use 1089 the package provided by the particular distribution of Linux that 1090 you are using. 1091 <br> 1092 The Solaris XRender header files is 1093 included with the other X11 header files 1094 in the package <strong>SFWxwinc</strong> 1095 on new enough versions of 1096 Solaris and will be installed in 1097 <code>/usr/X11/include/X11/extensions/Xrender.h</code> or 1098 <code>/usr/openwin/share/include/X11/extensions/Xrender.h</code> 1099 </td> 1100 </tr> 1101 </tbody> 1102 </table> 1103 </blockquote> 1104 1105 </blockquote> 1106 1107 <!-- ====================================================== --> 1108 <hr> 1109 <h3><a name="make">Make</a></h3> 1110 <blockquote> 1111 The basic invocation of the <code>make</code> utility 1112 looks like: 1113 <blockquote> 1114 <b><code>make all</code></b> 1115 </blockquote> 1116 This will start the build to the output directory containing the 1117 "configuration" that was created by the <code>configure</code> 1118 script. Run <code>make help</code> for more information on 1119 the available targets. 1120 <br> 1121 There are some of the make targets that 1122 are of general interest: 1123 <table border="1"> 1124 <thead> 1125 <tr> 1126 <th>Make Target</th> 1127 <th>Description</th> 1128 </tr> 1129 </thead> 1130 <tbody> 1131 <tr> 1132 <td><i>empty</i></td> 1133 <td>build everything but no images</td> 1134 </tr> 1135 <tr> 1136 <td><b><code>all</code></b></td> 1137 <td>build everything including images</td> 1138 </tr> 1139 <tr> 1140 <td><b><code>all-conf</code></b></td> 1141 <td>build all configurations</td> 1142 </tr> 1143 <tr> 1144 <td><b><code>images</code></b></td> 1145 <td>create complete j2sdk and j2re images</td> 1146 </tr> 1147 <tr> 1148 <td><b><code>install</code></b></td> 1149 <td>install the generated images locally, 1150 typically in <code>/usr/local</code></td> 1151 </tr> 1152 <tr> 1153 <td><b><code>clean</code></b></td> 1154 <td>remove all files generated by make, 1155 but not those generated by <code>configure</code></td> 1156 </tr> 1157 <tr> 1158 <td><b><code>dist-clean</code></b></td> 1159 <td>remove all files generated by both 1160 and <code>configure</code> (basically killing the configuration)</td> 1161 </tr> 1162 <tr> 1163 <td><b><code>help</code></b></td> 1164 <td>give some help on using <code>make</code>, 1165 including some interesting make targets</td> 1166 </tr> 1167 </tbody> 1168 </table> 1169 </blockquote> 1170 </blockquote> 1171 1172 <!-- ====================================================== --> 1173 <hr> 1174 <h2><a name="testing">Testing</a></h2> 1175 <blockquote> 1176 When the build is completed, you should see the generated 1177 binaries and associated files in the <code>j2sdk-image</code> 1178 directory in the output directory. 1179 In particular, the 1180 <code>build/<i>*</i>/images/j2sdk-image/bin</code> 1181 directory should contain executables for the 1182 OpenJDK tools and utilities for that configuration. 1183 The testing tool <code>jtreg</code> will be needed 1184 and can be found at: 1185 <a href="http://openjdk.java.net/jtreg/" target="_blank"> 1186 the jtreg site</a>. 1187 The provided regression tests in the repositories 1188 can be run with the command: 1189 <blockquote> 1190 <code><b>cd test && make PRODUCT_HOME=`pwd`/../build/*/images/j2sdk-image all</b></code> 1191 </blockquote> 1192 </blockquote> 1193 1194 <!-- ====================================================== --> 1195 <!-- ====================================================== --> 1196 <!-- ====================================================== --> 1197 <!-- ====================================================== --> 1198 <!-- ====================================================== --> 1199 <!-- ====================================================== --> 1200 <!-- ====================================================== --> 1201 <!-- ====================================================== --> 1202 <!-- ====================================================== --> 1203 1204 <!-- ====================================================== --> 1205 <hr> 1206 <h2><a name="hints">Appendix A: Hints and Tips</a></h2> 1207 <blockquote> 1208 1209 <h3><a name="faq">FAQ</a></h3> 1210 <blockquote> 1211 1212 <p> 1213 <b>Q:</b> The <code>configure</code> file looks horrible! 1214 How are you going to edit it? 1215 <br> 1216 <b>A:</b> The <code>configure</code> file is generated (think 1217 "compiled") by the autoconf tools. The source code is 1218 in <code>configure.ac</code> various .m4 files in common/autoconf, 1219 which are 1220 much more readable. 1221 </p> 1222 1223 <p> 1224 <b>Q:</b> 1225 Why is the <code>configure</code> file checked in, 1226 if it is generated? 1227 <br> 1228 <b>A:</b> 1229 If it was not generated, every user would need to have the autoconf 1230 tools installed, and re-generate the <code>configure</code> file 1231 as the first step. 1232 Our goal is to minimize the work needed to be done by the user 1233 to start building OpenJDK, and to minimize 1234 the number of external dependencies required. 1235 </p> 1236 1237 <p> 1238 <b>Q:</b> 1239 Do you require a specific version of autoconf for regenerating 1240 <code>configure</code>? 1241 <br> 1242 <b>A:</b> 1243 Currently, no, but this will likely be the case when things have 1244 settled down a bit more. (The reason for this is to avoid 1245 large spurious changes in <code>configure</code> 1246 in commits that made small changes to <code>configure.ac</code>). 1247 </p> 1248 1249 <p> 1250 <b>Q:</b> 1251 What are the files in <code>common/makefiles/support/*</code> for? 1252 They look like gibberish. 1253 <br> 1254 <b>A:</b> 1255 They are a somewhat ugly hack to compensate for command line length 1256 limitations on certain platforms (Windows, Solaris). 1257 Due to a combination of limitations in make and the shell, 1258 command lines containing too many files will not work properly. 1259 These 1260 helper files are part of an elaborate hack that will compress the 1261 command line in the makefile and then uncompress it safely. 1262 We're 1263 not proud of it, but it does fix the problem. 1264 If you have any better suggestions, we're all ears! :-) 1265 </p> 1266 1267 <p> 1268 <b>Q:</b> 1269 I want to see the output of the commands that make runs, 1270 like in the old build. How do I do that? 1271 <br> 1272 <b>A:</b> 1273 You specify the <code>LOG</code> variable to make. There are 1274 several log levels: 1275 </p> 1276 <blockquote> 1277 <ul> 1278 <li> 1279 <b><code>warn</code></b> — Default and very quiet. 1280 </li> 1281 <li> 1282 <b><code>info</code></b> — Shows more progress information 1283 than warn. 1284 </li> 1285 <li> 1286 <b><code>debug</code></b> — Echos all command lines and 1287 prints all macro calls for compilation definitions. 1288 </li> 1289 <li> 1290 <b><code>trace</code></b> — Echos all $(shell) command 1291 lines as well. 1292 </li> 1293 </ul> 1294 </blockquote> 1295 1296 <p> 1297 <b>Q:</b> 1298 When do I have to re-run <code>configure</code>? 1299 <br> 1300 <b>A:</b> 1301 Normally you will run <code>configure</code> only once for creating a 1302 configuration. 1303 You need to re-run configuration only if you want to change any 1304 configuration options, 1305 or if you pull down changes to the <code>configure</code> script. 1306 </p> 1307 1308 <p> 1309 <b>Q:</b> 1310 I have added a new source file. Do I need to modify the makefiles? 1311 <br> 1312 <b>A:</b> 1313 Normally, no. If you want to create e.g. a new native 1314 library, 1315 you will need to modify the makefiles. But for normal file 1316 additions or removals, no changes are needed. There are certan 1317 exceptions for some native libraries where the source files are spread 1318 over many directories which also contain sources for other 1319 libraries. In these cases it was simply easier to create include lists 1320 rather than excludes. 1321 </p> 1322 1323 <p> 1324 <b>Q:</b> 1325 When I run <code>configure --help</code>, I see many strange options, 1326 like <code>--dvidir</code>. What is this? 1327 <br> 1328 <b>A:</b> 1329 Configure provides a slew of options by default, to all projects 1330 that use autoconf. Most of them are not used in OpenJDK, 1331 so you can safely ignore them. To list only OpenJDK specific features, 1332 use <code>configure --help=short</code> instead. 1333 </p> 1334 1335 <p> 1336 <b>Q:</b> 1337 <code>configure</code> provides OpenJDK-specific features such as 1338 <code>--with-builddeps-server</code> that are not 1339 described in this document. What about those? 1340 <br> 1341 <b>A:</b> 1342 Try them out if you like! But be aware that most of these are 1343 experimental features. 1344 Many of them don't do anything at all at the moment; the option 1345 is just a placeholder. Others depend on 1346 pieces of code or infrastructure that is currently 1347 not ready for prime time. 1348 </p> 1349 1350 <p> 1351 <b>Q:</b> 1352 How will you make sure you don't break anything? 1353 <br> 1354 <b>A:</b> 1355 We have a script that compares the result of the new build system 1356 with the result of the old. For most part, we aim for (and achieve) 1357 byte-by-byte identical output. There are however technical issues 1358 with e.g. native binaries, which might differ in a byte-by-byte 1359 comparison, even 1360 when building twice with the old build system. 1361 For these, we compare relevant aspects 1362 (e.g. the symbol table and file size). 1363 Note that we still don't have 100% 1364 equivalence, but we're close. 1365 </p> 1366 1367 <p> 1368 <b>Q:</b> 1369 I noticed this thing X in the build that looks very broken by design. 1370 Why don't you fix it? 1371 <br> 1372 <b>A:</b> 1373 Our goal is to produce a build output that is as close as 1374 technically possible to the old build output. 1375 If things were weird in the old build, 1376 they will be weird in the new build. 1377 Often, things were weird before due to obscurity, 1378 but in the new build system the weird stuff comes up to the surface. 1379 The plan is to attack these things at a later stage, 1380 after the new build system is established. 1381 </p> 1382 1383 <p> 1384 <b>Q:</b> 1385 The code in the new build system is not that well-structured. 1386 Will you fix this? 1387 <br> 1388 <b>A:</b> 1389 Yes! The new build system has grown bit by bit as we converted 1390 the old system. When all of the old build system is converted, 1391 we can take a step back and clean up the structure of the new build 1392 system. Some of this we plan to do before replacing the old build 1393 system and some will need to wait until after. 1394 </p> 1395 1396 <p> 1397 <b>Q:</b> 1398 Is anything able to use the results of the new build's default make target? 1399 <br> 1400 <b>A:</b> 1401 Yes, this is the minimal (or roughly minimal) 1402 set of compiled output needed for a developer to actually 1403 execute the newly built JDK. The idea is that in an incremental 1404 development fashion, when doing a normal make, 1405 you should only spend time recompiling what's changed 1406 (making it purely incremental) and only do the work that's 1407 needed to actually run and test your code. 1408 The packaging stuff that is part of the <code>images</code> 1409 target is not needed for a normal developer who wants to 1410 test his new code. Even if it's quite fast, it's still unnecessary. 1411 We're targeting sub-second incremental rebuilds! ;-) 1412 (Or, well, at least single-digit seconds...) 1413 </p> 1414 1415 <p> 1416 <b>Q:</b> 1417 I usually set a specific environment variable when building, 1418 but I can't find the equivalent in the new build. 1419 What should I do? 1420 <br> 1421 <b>A:</b> 1422 It might very well be that we have neglected to add support for 1423 an option that was actually used from outside the build system. 1424 Email us and we will add support for it! 1425 </p> 1426 1427 </blockquote> 1428 1429 <h3><a name="performance">Build Performance Tips</a></h3> 1430 <blockquote> 1431 1432 <p>Building OpenJDK requires a lot of horsepower. 1433 Some of the build tools can be adjusted to utilize more or less 1434 of resources such as 1435 parallel threads and memory. 1436 The <code>configure</code> script analyzes your system and selects reasonable 1437 values for such options based on your hardware. 1438 If you encounter resource problems, such as out of memory conditions, 1439 you can modify the detected values with:</p> 1440 1441 <ul> 1442 <li> 1443 <b><code>--with-num-cores</code></b> 1444 — 1445 number of cores in the build system, 1446 e.g. <code>--with-num-cores=8</code> 1447 </li> 1448 <li> 1449 <b><code>--with-memory-size</code></b> 1450 — memory (in MB) available in the build system, 1451 e.g. <code>--with-memory-size=1024</code> 1452 </li> 1453 </ul> 1454 1455 <p>It might also be necessary to specify the JVM arguments passed 1456 to the Bootstrap JDK, using e.g. 1457 <code>--with-boot-jdk-jvmargs="-Xmx8G -enableassertions"</code>. 1458 Doing this will override the default JVM arguments 1459 passed to the Bootstrap JDK.</p> 1460 1461 1462 <p>One of the top goals of the new build system is to improve the 1463 build performance and decrease the time needed to build. This will 1464 soon also apply to the java compilation when the Smart Javac wrapper 1465 is making its way into jdk8. It can be tried in the build-infra 1466 repository already. You are likely to find that the new build system 1467 is faster than the old one even without this feature.</p> 1468 1469 <p>At the end of a successful execution of <code>configure</code>, 1470 you will get a performance summary, 1471 indicating how well the build will perform. Here you will 1472 also get performance hints. 1473 If you want to build fast, pay attention to those!</p> 1474 1475 <h4>Building with ccache</h4> 1476 1477 <p>A simple way to radically speed up compilation of native code 1478 (typically hotspot and native libraries in JDK) is to install 1479 ccache. This will cache and reuse prior compilation results, if the 1480 source code is unchanged. However, ccache versions prior to 3.1.4 1481 does not work correctly with the precompiled headers used in 1482 OpenJDK. So if your platform supports ccache at 3.1.4 or later, we 1483 highly recommend installing it. This is currently only supported on 1484 linux.</p> 1485 1486 <h4>Building on local disk</h4> 1487 1488 <p>If you are using network shares, e.g. via NFS, for your source code, 1489 make sure the build directory is situated on local disk. 1490 The performance 1491 penalty is extremely high for building on a network share, 1492 close to unusable.</p> 1493 1494 <h4>Building only one JVM</h4> 1495 1496 <p>The old build builds multiple JVMs on 32-bit systems (client and 1497 server; and on Windows kernel as well). In the new build we have 1498 changed this default to only build server when it's available. This 1499 improves build times for those not interested in multiple JVMs. To 1500 mimic the old behavior on platforms that support it, 1501 use <code>--with-jvm-variants=client,server</code>.</p> 1502 1503 <h4>Selecting the number of cores to build on</h4> 1504 1505 <p>By default, <code>configure</code> will analyze your machine and run the make 1506 process in parallel with as many threads as you have cores. This 1507 behavior can be overridden, either "permanently" (on a <code>configure</code> 1508 basis) using <code>--with-num-cores=N</code> or for a single build 1509 only (on a make basis), using <code>make JOBS=N</code>.</p> 1510 1511 <p>If you want to make a slower build just this time, to save some CPU 1512 power for other processes, you can run 1513 e.g. <code>make JOBS=2</code>. This will force the makefiles 1514 to only run 2 parallel processes, or even <code>make JOBS=1</code> 1515 which will disable parallelism.</p> 1516 1517 <p>If you want to have it the other way round, namely having slow 1518 builds default and override with fast if you're 1519 impatient, you should call <code>configure</code> with 1520 <code>--with-num-cores=2</code>, making 2 the default. 1521 If you want to run with more 1522 cores, run <code>make JOBS=8</code></p> 1523 1524 </blockquote> 1525 1526 <h3><a name="troubleshooting">Troubleshooting</a></h3> 1527 <blockquote> 1528 1529 <h4>Solving build problems</h4> 1530 1531 <blockquote> 1532 If the build fails (and it's not due to a compilation error in 1533 a source file you've changed), the first thing you should do 1534 is to re-run the build with more verbosity. 1535 Do this by adding <code>LOG=debug</code> to your make command line. 1536 <br> 1537 The build log (with both stdout and stderr intermingled, 1538 basically the same as you see on your console) can be found as 1539 <code>build.log</code> in your build directory. 1540 <br> 1541 You can ask for help on build problems with the new build system 1542 on either the 1543 <a href="http://mail.openjdk.java.net/mailman/listinfo/build-dev"> 1544 build-dev</a> 1545 or the 1546 <a href="http://mail.openjdk.java.net/mailman/listinfo/build-infra-dev"> 1547 build-infra-dev</a> 1548 mailing lists. Please include the relevant parts 1549 of the build log. 1550 <br> 1551 A build can fail for any number of reasons. 1552 Most failures 1553 are a result of trying to build in an environment in which all the 1554 pre-build requirements have not been met. 1555 The first step in 1556 troubleshooting a build failure is to recheck that you have satisfied 1557 all the pre-build requirements for your platform. 1558 Scanning the <code>configure</code> log is a good first step, making 1559 sure that what it found makes sense for your system. 1560 Look for strange error messages or any difficulties that 1561 <code>configure</code> had in finding things. 1562 <br> 1563 Some of the more common problems with builds are briefly 1564 described 1565 below, with suggestions for remedies. 1566 <ul> 1567 <li> 1568 <b>Corrupted Bundles on Windows:</b> 1569 <blockquote> 1570 Some virus scanning software has been known to 1571 corrupt the 1572 downloading of zip bundles. 1573 It may be necessary to disable the 'on access' or 1574 'real time' 1575 virus scanning features to prevent this corruption. 1576 This type of "real time" virus scanning can also 1577 slow down the 1578 build process significantly. 1579 Temporarily disabling the feature, or excluding the build 1580 output directory may be necessary to get correct and 1581 faster builds. 1582 </blockquote> 1583 </li> 1584 <li> 1585 <b>Slow Builds:</b> 1586 <blockquote> 1587 If your build machine seems to be overloaded from too many 1588 simultaneous C++ compiles, try setting the 1589 <code>JOBS=1</code> on the <code>make</code> command line. 1590 Then try increasing the count slowly to an acceptable 1591 level for your system. Also: 1592 <blockquote> 1593 Creating the javadocs can be very slow, 1594 if you are running 1595 javadoc, consider skipping that step. 1596 <br> 1597 Faster CPUs, more RAM, and a faster DISK usually helps. 1598 The VM build tends to be CPU intensive 1599 (many C++ compiles), 1600 and the rest of the JDK will often be disk intensive. 1601 <br> 1602 Faster compiles are possible using a tool called 1603 <a href="http://ccache.samba.org/" target="_blank">ccache</a>. 1604 </blockquote> 1605 </blockquote> 1606 </li> 1607 <li> 1608 <b>File time issues:</b> 1609 <blockquote> 1610 If you see warnings that refer to file time stamps, e.g. 1611 <blockquote> 1612 <i>Warning message:</i><code> 1613 File `xxx' has modification time in 1614 the future.</code> 1615 <br> 1616 <i>Warning message:</i> <code> Clock skew detected. 1617 Your build may 1618 be incomplete.</code> 1619 </blockquote> 1620 These warnings can occur when the clock on the build 1621 machine is out of 1622 sync with the timestamps on the source files. 1623 Other errors, apparently 1624 unrelated but in fact caused by the clock skew, 1625 can occur along with 1626 the clock skew warnings. 1627 These secondary errors may tend to obscure the 1628 fact that the true root cause of the problem 1629 is an out-of-sync clock. 1630 <p> 1631 If you see these warnings, reset the clock on the 1632 build 1633 machine, run "<code><i>gmake</i> clobber</code>" 1634 or delete the directory 1635 containing the build output, and restart the 1636 build from the beginning. 1637 </blockquote> 1638 </li> 1639 <li> 1640 <b>Error message: 1641 <code>Trouble writing out table to disk</code></b> 1642 <blockquote> 1643 Increase the amount of swap space on your build machine. 1644 This could be caused by overloading the system and 1645 it may be necessary to use: 1646 <blockquote> 1647 <code>make JOBS=1</code> 1648 </blockquote> 1649 to reduce the load on the system. 1650 </blockquote> 1651 </li> 1652 <li> 1653 <b>Error Message: 1654 <code>libstdc++ not found:</code></b> 1655 <blockquote> 1656 This is caused by a missing libstdc++.a library. 1657 This is installed as part of a specific package 1658 (e.g. libstdc++.so.devel.386). 1659 By default some 64-bit Linux versions (e.g. Fedora) 1660 only install the 64-bit version of the libstdc++ package. 1661 Various parts of the JDK build require a static 1662 link of the C++ runtime libraries to allow for maximum 1663 portability of the built images. 1664 </blockquote> 1665 </li> 1666 <li> 1667 <b>Linux Error Message: 1668 <code>cannot restore segment prot after reloc</code></b> 1669 <blockquote> 1670 This is probably an issue with SELinux (See 1671 <a href="http://en.wikipedia.org/wiki/SELinux" target="_blank"> 1672 http://en.wikipedia.org/wiki/SELinux</a>). 1673 Parts of the VM is built without the <code>-fPIC</code> for 1674 performance reasons. 1675 <p> 1676 To completely disable SELinux: 1677 <ol> 1678 <li><code>$ su root</code></li> 1679 <li><code># system-config-securitylevel</code></li> 1680 <li><code>In the window that appears, select the SELinux tab</code></li> 1681 <li><code>Disable SELinux</code></li> 1682 </ol> 1683 <p> 1684 Alternatively, instead of completely disabling it you could 1685 disable just this one check. 1686 <ol> 1687 <li>Select System->Administration->SELinux Management</li> 1688 <li>In the SELinux Management Tool which appears, 1689 select "Boolean" from the menu on the left</li> 1690 <li>Expand the "Memory Protection" group</li> 1691 <li>Check the first item, labeled 1692 "Allow all unconfined executables to use 1693 libraries requiring text relocation ..."</li> 1694 </ol> 1695 </blockquote> 1696 </li> 1697 <li> 1698 <b>Windows Error Messages:</b> 1699 <br> 1700 <code>*** fatal error - couldn't allocate heap, ... </code> 1701 <br> 1702 <code>rm fails with "Directory not empty"</code> 1703 <br> 1704 <code>unzip fails with "cannot create ... Permission denied"</code> 1705 <br> 1706 <code>unzip fails with "cannot create ... Error 50"</code> 1707 <br> 1708 <blockquote> 1709 The CYGWIN software can conflict with other non-CYGWIN 1710 software. See the CYGWIN FAQ section on 1711 <a href="http://cygwin.com/faq/faq.using.html#faq.using.bloda" target="_blank"> 1712 BLODA (applications that interfere with CYGWIN)</a>. 1713 </blockquote> 1714 </li> 1715 <li> 1716 <b>Windows Error Message: <code>spawn failed</code></b> 1717 <blockquote> 1718 Try rebooting the system, or there could be some kind of 1719 issue with the disk or disk partition being used. 1720 Sometimes it comes with a "Permission Denied" message. 1721 </blockquote> 1722 </li> 1723 </ul> 1724 </blockquote> 1725 1726 </blockquote> <!-- Troubleshooting --> 1727 1728 </blockquote> <!-- Appendix A --> 1729 1730 <!-- ====================================================== --> 1731 <hr> 1732 <h2><a name="gmake">Appendix B: GNU make</a></h2> 1733 <blockquote> 1734 1735 The Makefiles in the OpenJDK are only valid when used with the 1736 GNU version of the utility command <code>make</code> 1737 (usually called <code>gmake</code> on Solaris). 1738 A few notes about using GNU make: 1739 <ul> 1740 <li> 1741 You need GNU make version 3.81 or newer. 1742 If the GNU make utility on your systems is not 1743 3.81 or newer, 1744 see <a href="#buildgmake">"Building GNU make"</a>. 1745 </li> 1746 <li> 1747 Place the location of the GNU make binary in the 1748 <code>PATH</code>. 1749 </li> 1750 <li> 1751 <strong>Solaris:</strong> 1752 Do NOT use <code>/usr/bin/make</code> on Solaris. 1753 If your Solaris system has the software 1754 from the Solaris Developer Companion CD installed, 1755 you should try and use <code>gmake</code> 1756 which will be located in either the 1757 <code>/usr/bin</code>, <code>/opt/sfw/bin</code> or 1758 <code>/usr/sfw/bin</code> directory. 1759 </li> 1760 <li> 1761 <strong>Windows:</strong> 1762 Make sure you start your build inside a bash shell. 1763 </li> 1764 <li> 1765 <strong>Mac OS X:</strong> 1766 The XCode "command line tools" must be installed on your Mac. 1767 </li> 1768 </ul> 1769 <p> 1770 Information on GNU make, and access to ftp download sites, are 1771 available on the 1772 <a href="http://www.gnu.org/software/make/make.html" target="_blank"> 1773 GNU make web site 1774 </a>. 1775 The latest source to GNU make is available at 1776 <a href="http://ftp.gnu.org/pub/gnu/make/" target="_blank"> 1777 ftp.gnu.org/pub/gnu/make/</a>. 1778 </p> 1779 1780 <h3><a name="buildgmake">Building GNU make</a></h3> 1781 <blockquote> 1782 First step is to get the GNU make 3.81 or newer source from 1783 <a href="http://ftp.gnu.org/pub/gnu/make/" target="_blank"> 1784 ftp.gnu.org/pub/gnu/make/</a>. 1785 Building is a little different depending on the OS but is 1786 basically done with: 1787 <blockquote> 1788 <code>bash ./configure</code> 1789 <br> 1790 <code>make</code> 1791 </blockquote> 1792 </blockquote> 1793 1794 </blockquote> <!-- Appendix B --> 1795 1796 <!-- ====================================================== --> 1797 <hr> 1798 <h2><a name="buildenvironments">Appendix C: Build Environments</a></h2> 1799 <blockquote> 1800 1801 <h3><a name="MBE">Minimum Build Environments</a></h3> 1802 <blockquote> 1803 This file often describes specific requirements for what we 1804 call the 1805 "minimum build environments" (MBE) for this 1806 specific release of the JDK. 1807 What is listed below is what the Oracle Release 1808 Engineering Team will use to build the Oracle JDK product. 1809 Building with the MBE will hopefully generate the most compatible 1810 bits that install on, and run correctly on, the most variations 1811 of the same base OS and hardware architecture. 1812 In some cases, these represent what is often called the 1813 least common denominator, but each Operating System has different 1814 aspects to it. 1815 <p> 1816 In all cases, the Bootstrap JDK version minimum is critical, 1817 we cannot guarantee builds will work with older Bootstrap JDK's. 1818 Also in all cases, more RAM and more processors is better, 1819 the minimums listed below are simply recommendations. 1820 <p> 1821 With Solaris and Mac OS X, the version listed below is the 1822 oldest release we can guarantee builds and works, and the 1823 specific version of the compilers used could be critical. 1824 <p> 1825 With Windows the critical aspect is the Visual Studio compiler 1826 used, which due to it's runtime, generally dictates what Windows 1827 systems can do the builds and where the resulting bits can 1828 be used.<br> 1829 <b>NOTE: We expect a change here off these older Windows OS releases 1830 and to a 'less older' one, probably Windows 2008R2 X64.</b> 1831 <p> 1832 With Linux, it was just a matter of picking a 1833 stable distribution that is a good representative for Linux 1834 in general.<br> 1835 <b>NOTE: We expect a change here from Fedora 9 to something else, 1836 but it has not been completely determined yet, possibly 1837 Ubuntu 12.04 X64, unbiased community feedback would be welcome on 1838 what a good choice would be here.</b> 1839 <p> 1840 It is understood that most developers will NOT be using these 1841 specific versions, and in fact creating these specific versions 1842 may be difficult due to the age of some of this software. 1843 It is expected that developers are more often using the more 1844 recent releases and distributions of these operating systems. 1845 <p> 1846 Compilation problems with newer or different C/C++ compilers is a 1847 common problem. 1848 Similarly, compilation problems related to changes to the 1849 <code>/usr/include</code> or system header files is also a 1850 common problem with older, newer, or unreleased OS versions. 1851 Please report these types of problems as bugs so that they 1852 can be dealt with accordingly. 1853 </p> 1854 <table border="1"> 1855 <thead> 1856 <tr> 1857 <th>Base OS and Architecture</th> 1858 <th>OS</th> 1859 <th>C/C++ Compiler</th> 1860 <th>Bootstrap JDK</th> 1861 <th>Processors</th> 1862 <th>RAM Minimum</th> 1863 <th>DISK Needs</th> 1864 </tr> 1865 </thead> 1866 <tbody> 1867 <tr> 1868 <td>Linux X86 (32-bit) and X64 (64-bit)</td> 1869 <td>Fedora 9</td> 1870 <td>gcc 4.3 </td> 1871 <td>JDK 7u7</td> 1872 <td>2 or more</td> 1873 <td>1 GB</td> 1874 <td>6 GB</td> 1875 </tr> 1876 <tr> 1877 <td>Solaris SPARC (32-bit) and SPARCV9 (64-bit)</td> 1878 <td>Solaris 10 Update 6</td> 1879 <td>Studio 12 Update 1 + patches</td> 1880 <td>JDK 7u7</td> 1881 <td>4 or more</td> 1882 <td>4 GB</td> 1883 <td>8 GB</td> 1884 </tr> 1885 <tr> 1886 <td>Solaris X86 (32-bit) and X64 (64-bit)</td> 1887 <td>Solaris 10 Update 6</td> 1888 <td>Studio 12 Update 1 + patches</td> 1889 <td>JDK 7u7</td> 1890 <td>4 or more</td> 1891 <td>4 GB</td> 1892 <td>8 GB</td> 1893 </tr> 1894 <tr> 1895 <td>Windows X86 (32-bit)</td> 1896 <td>Windows XP</td> 1897 <td>Microsoft Visual Studio C++ 2010 Professional Edition</td> 1898 <td>JDK 7u7</td> 1899 <td>2 or more</td> 1900 <td>2 GB</td> 1901 <td>6 GB</td> 1902 </tr> 1903 <tr> 1904 <td>Windows X64 (64-bit)</td> 1905 <td>Windows Server 2003 - Enterprise x64 Edition</td> 1906 <td>Microsoft Visual Studio C++ 2010 Professional Edition</td> 1907 <td>JDK 7u7</td> 1908 <td>2 or more</td> 1909 <td>2 GB</td> 1910 <td>6 GB</td> 1911 </tr> 1912 <tr> 1913 <td>Mac OS X X64 (64-bit)</td> 1914 <td>Mac OS X 10.7 "Lion"</td> 1915 <td>XCode 4.5.2 or newer</td> 1916 <td>JDK 7u7</td> 1917 <td>2 or more</td> 1918 <td>4 GB</td> 1919 <td>6 GB</td> 1920 </tr> 1921 </tbody> 1922 </table> 1923 </blockquote> 1924 1925 <!-- ====================================================== --> 1926 <hr> 1927 <h3><a name="SDBE">Specific Developer Build Environments</a></h3> 1928 <blockquote> 1929 We won't be listing all the possible environments, but 1930 we will try to provide what information we have available to us. 1931 <p> 1932 <strong>NOTE: The community can help out by updating 1933 this part of the document. 1934 </strong> 1935 1936 <h4><a name="fedora">Fedora</a></h4> 1937 <blockquote> 1938 After installing the latest 1939 <a href="http://fedoraproject.org">Fedora</a> 1940 you need to install several build dependencies. 1941 The simplest way to do it is to execute the 1942 following commands as user <code>root</code>: 1943 <blockquote> 1944 <code>yum-builddep java-1.7.0-openjdk</code> 1945 <br> 1946 <code>yum install gcc gcc-c++</code> 1947 </blockquote> 1948 <p> 1949 In addition, it's necessary to set a few environment 1950 variables for the build: 1951 <blockquote> 1952 <code>export LANG=C</code> 1953 <br> 1954 <code>export PATH="/usr/lib/jvm/java-openjdk/bin:${PATH}"</code> 1955 </blockquote> 1956 </blockquote> 1957 1958 1959 <h4><a name="centos">CentOS 5.5</a></h4> 1960 <blockquote> 1961 After installing 1962 <a href="http://www.centos.org/">CentOS 5.5</a> 1963 you need to make sure you have 1964 the following Development bundles installed: 1965 <blockquote> 1966 <ul> 1967 <li>Development Libraries</li> 1968 <li>Development Tools</li> 1969 <li>Java Development</li> 1970 <li>X Software Development (Including XFree86-devel)</li> 1971 </ul> 1972 </blockquote> 1973 <p> 1974 Plus the following packages: 1975 <blockquote> 1976 <ul> 1977 <li>cups devel: Cups Development Package</li> 1978 <li>alsa devel: Alsa Development Package</li> 1979 <li>Xi devel: libXi.so Development Package</li> 1980 </ul> 1981 </blockquote> 1982 <p> 1983 The freetype 2.3 packages don't seem to be available, 1984 but the freetype 2.3 sources can be downloaded, built, 1985 and installed easily enough from 1986 <a href="http://downloads.sourceforge.net/freetype"> 1987 the freetype site</a>. 1988 Build and install with something like: 1989 <blockquote> 1990 <code>bash ./configure</code> 1991 <br> 1992 <code>make</code> 1993 <br> 1994 <code>sudo -u root make install</code> 1995 </blockquote> 1996 <p> 1997 Mercurial packages could not be found easily, but a Google 1998 search should find ones, and they usually include Python if 1999 it's needed. 2000 </blockquote> 2001 2002 <h4><a name="debian">Debian 5.0 (Lenny)</a></h4> 2003 <blockquote> 2004 After installing <a href="http://debian.org">Debian</a> 5 2005 you need to install several build dependencies. 2006 The simplest way to install the build dependencies is to 2007 execute the following commands as user <code>root</code>: 2008 <blockquote> 2009 <code>aptitude build-dep openjdk-7</code> 2010 <br> 2011 <code>aptitude install openjdk-7-jdk libmotif-dev</code> 2012 </blockquote> 2013 <p> 2014 In addition, it's necessary to set a few environment 2015 variables for the build: 2016 <blockquote> 2017 <code>export LANG=C</code> 2018 <br> 2019 <code>export PATH="/usr/lib/jvm/java-7-openjdk/bin:${PATH}"</code> 2020 </blockquote> 2021 </blockquote> 2022 2023 <h4><a name="ubuntu">Ubuntu 12.04</a></h4> 2024 <blockquote> 2025 After installing <a href="http://ubuntu.org">Ubuntu</a> 12.04 2026 you need to install several build dependencies. The simplest 2027 way to do it is to execute the following commands: 2028 <blockquote> 2029 <code>sudo aptitude build-dep openjdk-7</code> 2030 <br> 2031 <code>sudo aptitude install openjdk-7-jdk</code> 2032 </blockquote> 2033 <p> 2034 In addition, it's necessary to set a few environment 2035 variables for the build: 2036 <blockquote> 2037 <code>export LANG=C</code> 2038 <br> 2039 <code>export PATH="/usr/lib/jvm/java-7-openjdk/bin:${PATH}"</code> 2040 </blockquote> 2041 </blockquote> 2042 2043 <h4><a name="opensuse">OpenSUSE 11.1</a></h4> 2044 <blockquote> 2045 After installing <a href="http://opensuse.org">OpenSUSE</a> 11.1 2046 you need to install several build dependencies. 2047 The simplest way to install the build dependencies is to 2048 execute the following commands: 2049 <blockquote> 2050 <code>sudo zypper source-install -d java-1_7_0-openjdk</code> 2051 <br> 2052 <code>sudo zypper install make</code> 2053 </blockquote> 2054 <p> 2055 In addition, it is necessary to set a few environment 2056 variables for the build: 2057 <blockquote> 2058 <code>export LANG=C</code> 2059 <br> 2060 <code>export PATH="/usr/lib/jvm/java-1.7.0-openjdk/bin:$[PATH}"</code> 2061 </blockquote> 2062 <p> 2063 Finally, you need to unset the <code>JAVA_HOME</code> 2064 environment variable: 2065 <blockquote> 2066 <code>export -n JAVA_HOME</code> 2067 </blockquote> 2068 </blockquote> 2069 2070 <h4><a name="mandriva">Mandriva Linux One 2009 Spring</a></h4> 2071 <blockquote> 2072 After installing <a href="http://mandriva.org">Mandriva</a> 2073 Linux One 2009 Spring 2074 you need to install several build dependencies. 2075 The simplest way to install the build dependencies is to 2076 execute the following commands as user <code>root</code>: 2077 <blockquote> 2078 <code>urpmi java-1.7.0-openjdk-devel make gcc gcc-c++ 2079 freetype-devel zip unzip libcups2-devel libxrender1-devel 2080 libalsa2-devel libstc++-static-devel libxtst6-devel 2081 libxi-devel</code> 2082 </blockquote> 2083 <p> 2084 In addition, it is necessary to set a few environment 2085 variables for the build: 2086 <blockquote> 2087 <code>export LANG=C</code> 2088 <br> 2089 <code>export PATH="/usr/lib/jvm/java-1.7.0-openjdk/bin:${PATH}"</code> 2090 </blockquote> 2091 </blockquote> 2092 2093 <h4><a name="opensolaris">OpenSolaris 2009.06</a></h4> 2094 <blockquote> 2095 After installing <a href="http://opensolaris.org">OpenSolaris</a> 2009.06 2096 you need to install several build dependencies. 2097 The simplest way to install the build dependencies is to 2098 execute the following commands: 2099 <blockquote> 2100 <code>pfexec pkg install SUNWgmake SUNWj7dev 2101 sunstudioexpress SUNWcups SUNWzip SUNWunzip SUNWxwhl 2102 SUNWxorg-headers SUNWaudh SUNWfreetype2</code> 2103 </blockquote> 2104 <p> 2105 In addition, it is necessary to set a few environment 2106 variables for the build: 2107 <blockquote> 2108 <code>export LANG=C</code> 2109 <br> 2110 <code>export PATH="/opt/SunStudioExpress/bin:${PATH}"</code> 2111 </blockquote> 2112 </blockquote> 2113 2114 </blockquote> 2115 2116 </blockquote> <!-- Appendix C --> 2117 2118 <!-- ====================================================== --> 2119 2120 <!-- Leave out Appendix D -- 2121 2122 <hr> 2123 <h2><a name="mapping">Appendix D: Mapping Old to New</a></h2> 2124 <blockquote> 2125 <p>This table will help you convert some idioms of the old build 2126 system to the new build system.</p> 2127 <table summary="Cheat sheet for converting from old to new build system"> 2128 <tr valign="top"> 2129 <th>In the old build system, you used to...</th> 2130 <th>In the new build system, you should ...</th> 2131 </tr> 2132 <tr valign="top"> 2133 <td>run <code>make sanity</code></td> 2134 <td>run <code>bash ./configure</code></td> 2135 </tr> 2136 <tr valign="top"> 2137 <td>set <code>ALT_OUTPUTDIR=build/my-special-output</code></td> 2138 <td>before building the first time: 2139 <br> 2140 <code>cd build/my-special-output</code> 2141 <br> 2142 <code>bash ../../configure</code> 2143 <br> 2144 to build: 2145 <br> 2146 <code>cd build/my-special-output</code> 2147 <br> 2148 <code>make</code> 2149 </td> 2150 </tr> 2151 <tr valign="top"> 2152 <td>set <code>ALT_BOOTDIR=/opt/java/jdk7</code></td> 2153 <td>run <code>configure --with-boot-jdk=/opt/java/jdk7</code></td> 2154 </tr> 2155 <tr valign="top"> 2156 <td>run <code>make ARCH_DATA_MODEL=32</code></td> 2157 <td>run <code>configure --with-target-bits=32</code></td> 2158 </tr> 2159 <tr valign="top"> 2160 <td>set <code>BUILD_CLIENT_ONLY=true</code></td> 2161 <td>run <code>configure --with-jvm-variants=client</code></td> 2162 </tr> 2163 <tr valign="top"> 2164 <td>set <code>ALT_FREETYPE_LIB_PATH=/opt/freetype/lib</code> 2165 and <code>ALT_FREETYPE_HEADERS_PATH=/opt/freetype/include</code></td> 2166 <td>run <code>configure --with-freetype=/opt/freetype</code></td> 2167 </tr> 2168 <tr valign="top"> 2169 <td>set <code>ALT_CUPS_HEADERS_PATH=/opt/cups/include</code></td> 2170 <td>run <code>configure --with-cups=/opt/cups</code></td> 2171 </tr> 2172 <tr valign="top"> 2173 <td>set <code>ALT_OPENWIN_HOME=/opt/X11R6</code></td> 2174 <td>run <code>configure --with-x=/opt/X11R6</code></td> 2175 </tr> 2176 <tr valign="top"> 2177 <td>set <code>ALT_MSVCRNN_DLL_PATH=c:/vc_redist</code></td> 2178 <td>run <code>configure --with-msvcr100dll=/cygdrive/c/vc_redist</code></td> 2179 </tr> 2180 <tr valign="top"> 2181 <td>set <code>ALT_COMPILER_PATH=/opt/my-gcc/bin/gcc</code></td> 2182 <td>run <code>CC=/opt/my-gcc/bin/gcc configure</code> 2183 or <code>CXX=/opt/my-gcc/bin/g++ configure</code> 2184 </td> 2185 </tr> 2186 <tr valign="top"> 2187 <td>set <code>BUILD_HEADLESS_ONLY=true</code></td> 2188 <td>run <code>configure --disable-headful</code></td> 2189 </tr> 2190 <tr valign="top"> 2191 <td>set <code>ALT_DEVTOOLS_PATH=/opt/mytools</code></td> 2192 <td>just run <code>configure</code>, 2193 your tools should be detected automatically. 2194 If you have an unusual configuration, 2195 add the tools directory to your <code>PATH</code>. 2196 </td> 2197 </tr> 2198 <tr valign="top"> 2199 <td>set <code>ALT_DROPS_DIR=/home/user/dropdir</code></td> 2200 <td>source drops are not used anymore</td> 2201 </tr> 2202 <tr valign="top"> 2203 <td>set <code>USE_ONLY_BOOTDIR_TOOLS=true</code></td> 2204 <td>not needed, <code>configure</code> should always do the Right Thing automatically</td> 2205 </tr> 2206 <tr valign="top"> 2207 <td>set <code>ALT_JDK_IMPORT_PATH=/opt/java/import-jdk</code> 2208 or <code>ALT_BUILD_JDK_IMPORT_PATH=/opt/java/import-jdk</code> 2209 </td> 2210 <td>Importing JDKs is no longer possible, 2211 but hotspot can be imported using 2212 <code>--with-import-hotspot</code>. 2213 Documentation on how to achieve a 2214 similar solution will come soon! 2215 </td> 2216 </tr> 2217 <tr valign="top"> 2218 <td>set <code>EXTRA_CFLAGS=-Xfoo</code></td> 2219 <td>run <code>CFLAGS=-Xfoo configure</code></td> 2220 </tr> 2221 <tr valign="top"> 2222 <td>set <code>CROSS_COMPILE_ARCH=i586</code></td> 2223 <td>see <a href="#sec7.3"> section 7.3, Cross-compilation</a></td> 2224 </tr> 2225 <tr valign="top"> 2226 <td>set <code>SKIP_BOOT_CYCLE=false</code></td> 2227 <td>Run <code>make bootcycle-images</code>.</td> 2228 </tr> 2229 </table> 2230 2231 <h3><a name="variables">Environment/Make Variables</a></h3> 2232 <p> 2233 Some of the 2234 environment or make variables (just called <b>variables</b> in this 2235 document) that can impact the build are: 2236 <blockquote> 2237 <dl> 2238 <dt><a name="path"><code>PATH</code></a> </dt> 2239 <dd>Typically you want to set the <code>PATH</code> to include: 2240 <ul> 2241 <li>The location of the GNU make binary</li> 2242 <li>The location of the Bootstrap JDK <code>java</code> 2243 (see <a href="#bootjdk">Bootstrap JDK</a>)</li> 2244 <li>The location of the C/C++ compilers 2245 (see <a href="#compilers"><code>compilers</code></a>)</li> 2246 <li>The location or locations for the Unix command utilities 2247 (e.g. <code>/usr/bin</code>)</li> 2248 </ul> 2249 </dd> 2250 <dt><code>MILESTONE</code> </dt> 2251 <dd> 2252 The milestone name for the build (<i>e.g.</i>"beta"). 2253 The default value is "internal". 2254 </dd> 2255 <dt><code>BUILD_NUMBER</code> </dt> 2256 <dd> 2257 The build number for the build (<i>e.g.</i> "b27"). 2258 The default value is "b00". 2259 </dd> 2260 <dt><a name="arch_data_model"><code>ARCH_DATA_MODEL</code></a></dt> 2261 <dd>The <code>ARCH_DATA_MODEL</code> variable 2262 is used to specify whether the build is to generate 32-bit or 64-bit 2263 binaries. 2264 The Solaris build supports either 32-bit or 64-bit builds, but 2265 Windows and Linux will support only one, depending on the specific 2266 OS being used. 2267 Normally, setting this variable is only necessary on Solaris. 2268 Set <code>ARCH_DATA_MODEL</code> to <code>32</code> for generating 32-bit binaries, 2269 or to <code>64</code> for generating 64-bit binaries. 2270 </dd> 2271 <dt><a name="ALT_BOOTDIR"><code>ALT_BOOTDIR</code></a></dt> 2272 <dd> 2273 The location of the bootstrap JDK installation. 2274 See <a href="#bootjdk">Bootstrap JDK</a> for more information. 2275 You should always install your own local Bootstrap JDK and 2276 always set <code>ALT_BOOTDIR</code> explicitly. 2277 </dd> 2278 <dt><a name="ALT_OUTPUTDIR"><code>ALT_OUTPUTDIR</code></a> </dt> 2279 <dd> 2280 An override for specifying the (absolute) path of where the 2281 build output is to go. 2282 The default output directory will be build/<i>platform</i>. 2283 </dd> 2284 <dt><a name="ALT_COMPILER_PATH"><code>ALT_COMPILER_PATH</code></a> </dt> 2285 <dd> 2286 The location of the C/C++ compiler. 2287 The default varies depending on the platform. 2288 </dd> 2289 <dt><code><a name="ALT_CACERTS_FILE">ALT_CACERTS_FILE</a></code></dt> 2290 <dd> 2291 The location of the <a href="#cacerts">cacerts</a> file. 2292 The default will refer to 2293 <code>jdk/src/share/lib/security/cacerts</code>. 2294 </dd> 2295 <dt><a name="ALT_CUPS_HEADERS_PATH"><code>ALT_CUPS_HEADERS_PATH</code></a> </dt> 2296 <dd> 2297 The location of the CUPS header files. 2298 See <a href="#cups">CUPS information</a> for more information. 2299 If this path does not exist the fallback path is 2300 <code>/usr/include</code>. 2301 </dd> 2302 <dt><a name="ALT_FREETYPE_LIB_PATH"><code>ALT_FREETYPE_LIB_PATH</code></a></dt> 2303 <dd> 2304 The location of the FreeType shared library. 2305 See <a href="#freetype">FreeType information</a> for details. 2306 </dd> 2307 <dt><a name="ALT_FREETYPE_HEADERS_PATH"><code>ALT_FREETYPE_HEADERS_PATH</code></a></dt> 2308 <dd> 2309 The location of the FreeType header files. 2310 See <a href="#freetype">FreeType information</a> for details. 2311 </dd> 2312 <dt><a name="ALT_JDK_DEVTOOLS_PATH"><code>ALT_JDK_DEVTOOLS_PATH</code></a></dt> 2313 <dd> 2314 The default root location of the devtools. 2315 The default value is 2316 <code>$(ALT_SLASH_JAVA)/devtools</code>. 2317 </dd> 2318 <dt><code><a name="ALT_DEVTOOLS_PATH">ALT_DEVTOOLS_PATH</a></code> </dt> 2319 <dd> 2320 The location of tools like the 2321 <a href="#zip"><code>zip</code> and <code>unzip</code></a> 2322 binaries, but might also contain the GNU make utility 2323 (<code><i>gmake</i></code>). 2324 So this area is a bit of a grab bag, especially on Windows. 2325 The default value depends on the platform and 2326 Unix Commands being used. 2327 On Linux the default will be 2328 <code>$(ALT_JDK_DEVTOOLS_PATH)/linux/bin</code>, 2329 on Solaris 2330 <code>$(ALT_JDK_DEVTOOLS_PATH)/<i>{sparc,i386}</i>/bin</code>, 2331 and on Windows with CYGWIN 2332 <code>/usr/bin</code>. 2333 </dd> 2334 <dt><a name="ALT_UNIXCCS_PATH"><code>ALT_UNIXCCS_PATH</code></a></dt> 2335 <dd> 2336 <strong>Solaris only:</strong> 2337 An override for specifying where the Unix CCS 2338 command set are located. 2339 The default location is <code>/usr/ccs/bin</code> 2340 </dd> 2341 <dt><a name="ALT_SLASH_JAVA"><code>ALT_SLASH_JAVA</code></a></dt> 2342 <dd> 2343 The default root location for many of the ALT path locations 2344 of the following ALT variables. 2345 The default value is 2346 <code>"/java"</code> on Solaris and Linux, 2347 <code>"J:"</code> on Windows. 2348 </dd> 2349 2350 <dt><a name="ALT_OPENWIN_HOME"><code>ALT_OPENWIN_HOME</code></a></dt> 2351 <dd> 2352 The top-level directory of the libraries and include files 2353 for the platform's 2354 graphical programming environment. 2355 The default location is platform specific. 2356 For example, on Linux it defaults to <code>/usr/X11R6/</code>. 2357 </dd> 2358 <dt><strong>Windows specific:</strong></dt> 2359 <dd> 2360 <dl> 2361 <dt><a name="ALT_WINDOWSSDKDIR"><code>ALT_WINDOWSSDKDIR</code></a> </dt> 2362 <dd> 2363 The location of the 2364 Microsoft Windows SDK where some tools will be 2365 located. 2366 The default is whatever WINDOWSSDKDIR is set to 2367 (or WindowsSdkDir) or the path 2368 <br> 2369 <code>c:\Program Files\Microsoft SDKs\Windows\v7.0a</code> 2370 </dd> 2371 <dt><code><a name="ALT_DXSDK_PATH">ALT_DXSDK_PATH</a></code> </dt> 2372 <dd> 2373 The location of the 2374 <a href="#dxsdk">Microsoft DirectX 9 SDK</a>. 2375 The default will be to try and use the DirectX environment 2376 variable <code>DXSDK_DIR</code>, 2377 failing that, look in <code>C:/DXSDK</code>. 2378 </dd> 2379 <dt><code><a name="ALT_MSVCRNN_DLL_PATH">ALT_MSVCRNN_DLL_PATH</a></code> </dt> 2380 <dd> 2381 The location of the 2382 <a href="#msvcrNN"><code>MSVCR100.DLL</code></a>. 2383 </dd> 2384 </dl> 2385 </dd> 2386 <dt><strong>Cross-Compilation Support:</strong></dt> 2387 <dd> 2388 <dl> 2389 <dt><a name="CROSS_COMPILE_ARCH"><code>CROSS_COMPILE_ARCH</code></a> </dt> 2390 <dd> 2391 Set to the target architecture of a 2392 cross-compilation build. If set, this 2393 variable is used to signify that we are 2394 cross-compiling. The expectation 2395 is that 2396 <a href="#ALT_COMPILER_PATH"><code>ALT_COMPILER_PATH</code></a> 2397 is set 2398 to point to the cross-compiler and that any 2399 cross-compilation specific flags 2400 are passed using 2401 <a href="#EXTRA_CFLAGS"><code>EXTRA_CFLAGS</code></a>. 2402 The <a href="#ALT_OPENWIN_HOME"><code>ALT_OPENWIN_HOME</code></a> 2403 variable should 2404 also be set to point to the graphical header files 2405 (e.g. X11) provided with 2406 the cross-compiler. 2407 When cross-compiling we skip execution of any demos 2408 etc that may be built, and 2409 also skip binary-file verification. 2410 </dd> 2411 <dt><code><a name="EXTRA_CFLAGS">EXTRA_CFLAGS</a></code> </dt> 2412 <dd> 2413 Used to pass cross-compilation options to the 2414 cross-compiler. 2415 These are added to the <code>CFLAGS</code> 2416 and <code>CXXFLAGS</code> variables. 2417 </dd> 2418 <dt><code><a name="USE_ONLY_BOOTDIR_TOOLS">USE_ONLY_BOOTDIR_TOOLS</a></code> </dt> 2419 <dd> 2420 Used primarily for cross-compilation builds 2421 (and always set in that case) 2422 this variable indicates that tools from the 2423 boot JDK should be used during 2424 the build process, not the tools 2425 (<code>javac</code>, <code>javah</code>, <code>jar</code>) 2426 just built (which can't execute on the build host). 2427 </dd> 2428 <dt><code><a name="HOST_CC">HOST_CC</a></code> </dt> 2429 <dd> 2430 The location of the C compiler to generate programs 2431 to run on the build host. 2432 Some parts of the build generate programs that are 2433 then compiled and executed 2434 to produce other parts of the build. Normally the 2435 primary C compiler is used 2436 to do this, but when cross-compiling that would be 2437 the cross-compiler and the 2438 resulting program could not be executed. 2439 On Linux this defaults to <code>/usr/bin/gcc</code>; 2440 on other platforms it must be 2441 set explicitly. 2442 </dd> 2443 </dl> 2444 <dt><strong>Specialized Build Options:</strong></dt> 2445 <dd> 2446 Some build variables exist to support specialized build 2447 environments and/or specialized 2448 build products. Their use is only supported in those contexts: 2449 <dl> 2450 <dt><code><a name="BUILD_CLIENT_ONLY">BUILD_CLIENT_ONLY</a></code> </dt> 2451 <dd> 2452 Indicates this build will only contain the 2453 Hotspot client VM. In addition to 2454 controlling the Hotspot build target, 2455 it ensures that we don't try to copy 2456 any server VM files/directories, 2457 and defines a default <code>jvm.cfg</code> file 2458 suitable for a client-only environment. 2459 Using this in a 64-bit build will 2460 generate a sanity warning as 64-bit client 2461 builds are not directly supported. 2462 </dd> 2463 <dt><code><a name="BUILD_HEADLESS_ONLY"></a>BUILD_HEADLESS_ONLY</code> </dt> 2464 <dd> 2465 Used when the build environment has no graphical 2466 capabilities at all. This 2467 excludes building anything that requires graphical 2468 libraries to be available. 2469 </dd> 2470 <dt><code><a name="JAVASE_EMBEDDED"></a>JAVASE_EMBEDDED</code> </dt> 2471 <dd> 2472 Used to indicate this is a build of the Oracle 2473 Java SE Embedded product. 2474 This will enable the directives included in the 2475 SE-Embedded specific build 2476 files. 2477 </dd> 2478 <dt><code><a name="LIBZIP_CAN_USE_MMAP">LIBZIP_CAN_USE_MMAP</a></code> </dt> 2479 <dd> 2480 If set to false, disables the use of mmap by the 2481 zip utility. Otherwise, 2482 mmap will be used. 2483 </dd> 2484 <dt><code><a name="COMPRESS_JARS"></a>COMPRESS_JARS</code> </dt> 2485 <dd> 2486 If set to true, causes certain jar files that 2487 would otherwise be built without 2488 compression, to use compression. 2489 </dd> 2490 </dl> 2491 </dd> 2492 </dl> 2493 </blockquote> 2494 2495 </blockquote> <!-- Appendix D --> 2496 2497 <!-- ====================================================== --> 2498 <hr> 2499 <p>End of OpenJDK README-builds.html document.<br>Please come again! 2500 <hr> 2501 2502 </body> 2503 </html>