Created entries for the work Andrew Gallatin, Sean O'Connell, and Ernst
de Haan have done on the IBM and Sun JDK 1.3.
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Patrick S. Gardella
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" [
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<!ENTITY base CDATA "../..">
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<!ENTITY date "$FreeBSD: www/en/java/dists/13.sgml,v 1.2 2000/03/12 14:51:48 patrick Exp $">
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<!ENTITY date "$FreeBSD: www/en/java/dists/13.sgml,v 1.3 2000/04/30 22:57:37 nik Exp $">
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<!ENTITY title "FreeBSD Java Project: JDK 1.3">
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<!ENTITY % includes SYSTEM "../../includes.sgml"> %includes;
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]>
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<table border="0">
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<tr>
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<td>
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<P>
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<B>January 29, 2000:</B> Work has not begun on the JDK 1.3 port.
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<P><B>September 15, 2000:</B> <a href="mailto:gallatin@cs.duke.edu">Andrew
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Gallatin</a> and <a href="mailto:sean@stat.Duke.EDU">Sean O'Connell</a>
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have been working on getting IBM's JDK 1.3 working. To make them work
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on your system, you will have to patch some of your FreeBSD sources.
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They have provided patches based on your version:
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<br>
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<a href="http://www.cs.duke.edu/~gallatin/linux_sa_siginfo/4.0-release.diff">
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4.0-RELEASE</a>
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<br><a href="http://people.freebsd.org/~patrick/ibmjdk/linux.patch2">
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4.0-STABLE</a>
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<br><a href="http://www.cs.duke.edu/~gallatin/linux_sa_siginfo/diff">
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-CURRENT</a> (pre-SMPng)
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<P>To quote Drew's message:
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<br><pre>
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I've finally gotten the IBM jdk 1.3 working. I haven't tested it very
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heavily AWT stuff seems to finally work though.
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Here's an an updated patchset to a pre-SMPng -current. The patchset
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does the following:
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- changes MINSIGSTKSZ from 8192 to 2048
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- implements linux_rt_sendsig() & linux_rt_sigreturn()
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- implements userland sigtramp code for linux_rt_sigreturn()
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- implements linux_to_bsd_sigaltstack & bsd_to_linux_sigaltstack() to
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fix a bug in linux_sigaltstack & to avoid lots of cut-n-paste in
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linux_rt_sigreturn(). This also fixes the "Java HotSpot(TM)
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Client VM warning: cannot uninstall alt signal stack" one sees with
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Sun's 1.3 JDK.
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- changes the MAP_STACK flag to MAP_ANON for LINUX_MAP_GROWSDOWN
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mmaps. This was the final step in getting it working. Any VM gurus
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out there want to talk about this one? There's aparently
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something wrong with autogrowing linux thread stacks[*]
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Patches at: http://www.cs.duke.edu/~gallatin/linux_sa_siginfo/diff
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[*]The "problem" is the heuristic used by vm_map_growstack() to
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determine whether the stack part of the main process stack. We
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currently use:
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is_procstack = addr >= (vm_offset_t)vm->vm_maxsaddr;
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where vm->vm_maxsaddr comes from exec_new_vmspace():
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vmspace->vm_maxsaddr = (char *)USRSTACK - MAXSSIZ;
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The IBM JDK's main thread reduces it's stack size to rlim_cur=2040*1024.
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It then creates stacks for its threads at addresses which are greater
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than vm_maxsaddr but less than the current bottom of the main process
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stack as defined by p->p_rlimit[RLIMIT_STACK].rlim_cur. The first time
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a thread accesses something requiring this region to grow, it goes
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down in flames.
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</pre>
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<P>And Sean's email:
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<pre>
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I did a Quick&Dirty MFC of Andrew Gallatin's work on getting the
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IBM Java SDK to work. I was able to run the appletviewer on one
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of the demos and it worked. I cannot say much more than that.
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The patches are all relative to /usr/src (or / since they are
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all in sys )
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The majority of the patches are for files in /sys/i386/linux.
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You should be able to apply the patch; cd to /sys/modules/linux;
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type make; kldunload linux; type make install; and kldload linux
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There is an additonal change which sets the MINSIGSTKSZ to 2048
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in sys/sys/signal.h .. this will require a kernel rebuild to
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take effect.
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</pre>
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<P><B>July 18, 2000:</B> <a href="ernst@jollem.com">Ernst de Haan</a>
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has done some work getting Sun's Linux JDK 1.3.0b9 to run on
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4.0-STABLE. The .java_wrapper file can be found
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<a href="http://people.freebsd.org/~patrick/sunjdk/java_wrapper">
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here</a>. (Don't forget to rename it to .java_wrapper)
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<P>Ernst's email:
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<pre>
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Just one more hint: Change the jre/lib/jvm.cfg and put the last line on
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top. So you will get:
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-classic
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-hotspot
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-server
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I _do_ get one warning, BTW, when running the Swing app:
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Warning: Cannot convert string "MetaCtrl<Key>Insert" to type VirtualBinding
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Ernst
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Ernst de Haan wrote:
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> Hi folkz,
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>
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> I have the Sun JDK 1.3.0 for Linux, beta 9 running on my FreeBSD
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> 4.0-STABLE system. Runs pretty nicely too.
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>
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> java -version reports:
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>
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> bash-2.04$ java -version
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> expr: syntax error
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> java version "1.3.0beta_refresh"
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> Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0beta_refresh-b09)
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> Classic VM (build 1.3.0beta_refresh-b09, green threads, nojit)
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>
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> The first line with the syntax error is a small problem with
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> .java_wrapper, but it seems harmless. I had to make some modifications
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> to the .java_wrapper script to make it work on my system. I've attached
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> the version I use.
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>
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> I haven't done much testing yet, but I have tried a single Swing
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> application. I did notice some differences in fonts, but it all seems to
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> work pretty nice and fast :)
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>
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> Wow, soon FreeBSD will be the platform with the greatest number of
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> working JDKs on it, once we get WINE to work so we can run the Windows
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> JDKs too, and write an AS/400 emulator, and... and... ;-)
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>
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> Ernst
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>
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> P.S. Thanks go to Victor Salaman how pointed me in the right direction.
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> He has been running the Sun JDK 1.3 for Linux for quite a while.
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</pre>
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<P><B>January 29, 2000:</B> Work has not begun on the JDK 1.3 port.
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It will not be until after our JDK 1.2 release is done that we will begin
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on JDK 1.3.
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