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[news.eclipse.platform] Re: how to specify GTK? 
Hi Andres, Tom,

Thanks for your suggestions.

We tried to run the same test case on REHL5.3 which has GTK 2.10 and didn't see the crash. Somewhat confirmed that the crash is related to the OS and GTK.

However, before we could upgrade all the system to RHEL 5.3, we need to find an interim solution for users still on RHEL 5.03 with GTK 2.4.

We downloaded and compiled the latest GTK 2.14.7 (and all dependent) library and installed them at /tmp/gtk-root-for-2.14.7/lib. We then tried to set both LD_LIBRARY_PATH and -Djava.library.path to where the newer version GTK was installed, but Eclipse still crashes :-(

In the "Dynamic libraries" section of the hs_err_pid.log, there are still pointers to /usr/lib for GTK 2.4 instead of the new location for GTK 2.14.

How to make sure the new library path is picked up?

Below is the output from "grep -n gtk hs_err_pid*.log" (with host and user specific information modified). The only reference to /tmp/gtk-root-for-2.14.7 is in LD_LIBRARY_PATH and -Djava.library.path.

8:# C  [libgtk-x11-2.0.so.0+0x1e8498]
41:C  [libgtk-x11-2.0.so.0+0x1e8498]
46:C  [libswt-pi-gtk-3449.so+0x328cd]  Java_org_eclipse_swt_internal_gtk_OS__1g_1main_1context_1iteration+0x20
47:j  org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(IZ)Z+0
48:j  org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(IZ)Z+9
62:j  org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(IZ)Z+0
63:j  org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(IZ)Z+9
223:00722000-009ca000 r-xp 00000000 68:01 1073922                            /usr/lib/libgtk-x11-2.0.so.0.400.13
224:009ca000-009d3000 rwxp 002a8000 68:01 1073922                            /usr/lib/libgtk-x11-2.0.so.0.400.13
321:52146000-52149000 r-xp 00000000 68:01 1200134                            /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-png.so
322:52149000-5214a000 rwxp 00003000 68:01 1200134                            /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-png.so
398:52ab5000-52abf000 r-xp 00000000 00:2c 2003498                            <eclipse-install-location>/configuration/org.eclipse.osgi/bundles/398/1/.cp/libswt-cairo-gtk-3449.so
399:52abf000-52ac0000 rwxp 00009000 00:2c 2003498                            <eclipse-install-location>/configuration/org.eclipse.osgi/bundles/398/1/.cp/libswt-cairo-gtk-3449.so
404:52c3d000-52c43000 r-xp 00000000 00:2c 2003496                            <eclipse-install-location>/configuration/org.eclipse.osgi/bundles/398/1/.cp/libswt-atk-gtk-3449.so
405:52c43000-52c44000 rwxp 00005000 00:2c 2003496                            <eclipse-install-location>/configuration/org.eclipse.osgi/bundles/398/1/.cp/libswt-atk-gtk-3449.so
474:53519000-5351e000 r-xp 00000000 68:01 1200130                            /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-gif.so
475:5351e000-5351f000 rwxp 00004000 68:01 1200130                            /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-gif.so
486:53592000-535e7000 r-xp 00000000 00:2c 2003495                            <eclipse-install-location>/configuration/org.eclipse.osgi/bundles/398/1/.cp/libswt-pi-gtk-3449.so
487:535e7000-535e9000 rwxp 00054000 00:2c 2003495                            <eclipse-install-location>/configuration/org.eclipse.osgi/bundles/398/1/.cp/libswt-pi-gtk-3449.so
489:535ea000-535ed000 r-xp 00000000 00:2c 2003494                            <eclipse-install-location>/configuration/org.eclipse.osgi/bundles/398/1/.cp/libswt-gtk-3449.so
490:535ed000-535ee000 rwxp 00002000 00:2c 2003494                            <eclipse-install-location>/configuration/org.eclipse.osgi/bundles/398/1/.cp/libswt-gtk-3449.so
498:535fe000-53610000 r-xs 001d8000 00:2c 12779120                           <eclipse-install-location>/plugins/org.eclipse.swt.gtk.linux.x86_3.4.1.v3449c.jar
526:53934000-53937000 r-xp 00000000 68:01 1200129                            /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-bmp.so
527:53937000-53938000 rwxp 00002000 68:01 1200129                            /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-bmp.so
528:53940000-5394c000 r-xp 00000000 68:01 1200766                            /usr/lib/gtk-2.0/2.4.0/engines/libbluecurve.so
529:5394c000-5394d000 rwxp 0000b000 68:01 1200766                            /usr/lib/gtk-2.0/2.4.0/engines/libbluecurve.so
544:53b39000-53b44000 r-xp 00000000 00:2c 23342803                           <eclipse-install-location>/plugins/org.eclipse.equinox.launcher.gtk.linux.x86_1.0.101.R34x_v20080805/eclipse_1115.so
545:53b44000-53b45000 rwxp 0000a000 00:2c 23342803                           <eclipse-install-location>/plugins/org.eclipse.equinox.launcher.gtk.linux.x86_1.0.101.R34x_v20080805/eclipse_1115.so
612:jvm_args: -Dosgi.requiredJavaVersion=1.5 -Xms2048m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=512m -Djava.library.path=/tmp/gtk-root-for-2.14.7/lib
613:java_command: <eclipse-install-location>/plugins/org.eclipse.equinox.launcher_1.0.101.R34x_v20080819.jar -os linux -ws gtk -arch x86 -showsplash -launcher <eclipse-install-location>/eclipse -name Eclipse --launcher.library <eclipse-install-location>/plugins/org.eclipse.equinox.launcher.gtk.linux.x86_1.0.101.R34x_v20080805/eclipse_1115.so -startup <eclipse-install-location>/plugins/org.eclipse.equinox.launcher_1.0.101.R34x_v20080819.jar -exitdata 20f8007 -vm /auto/integration/jdk1.6.0_03/bin/java -vmargs -Dosgi.requiredJavaVersion=1.5 -Xms2048m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=512m -Djava.library.path=/ws/jmagnuso-sjc/gtk-root-for-2.14.7/lib -jar <eclipse-install-location>/plugins/org.eclipse.equinox.launcher_1.0.101.R34x_v20080819.jar
618:LD_LIBRARY_PATH=/auto/integration/jdk1.6.0_03/jre/lib/i386/server:/auto/integration/jdk1.6.0_03/jre/lib/i386:/auto/integration/jdk1.6.0_03/jre/../lib/i386:/tmp/gtk-root-for-2.14.7/lib



Thanks
Maggie


Andrew Niefer wrote:
Note that the eclipse launcher will be loading gtk to show the splash screen. This is c code and independent of java, -Djava.library.path won't work here. If you aren't using the splash screen, then swt will be the first to load gtk and then java.library.path would work.


To change the gtk found by the launcher you would need to set an environment variable LD_LIBRARY_PATH to point to the correct one.
(The launcher is just doing dlopen("libgdk-x11-2.0.so.0") )

-Andrew

Maggie wrote: 
Hi Tom,

Thanks for the suggestions.

Since I don't have "root" access to the system, so I can't try a) unless it's verified that is the cause of the crash.

I will try b).

Our system is RHEL4 with Ganymede+CDT 5.

Thanks
Maggie

Tom Schindl wrote: 
Hi,

libgtk-x11-2.0.so.0 is a system library so you'd have to:

a) Upgrade your system to have the appropriate lib in your path
b) You could tell Java to search for native libs in an additional
   location using -Djava.library.path

What system are you on? Which version of Eclipse are you trying?

Tom

Maggie schrieb: 
Hi,

Is there a way to specify a different version of libgtk to use? For
example, like how we could specify a Java with "-vm"?

We recently see random crashes at libgtk-x11-2.0(see below) with
Ganymede and CDT 5. A little bit googling shows GTK 2.0 is a 7 years old
release. I want to try out the latest GTK which is 2.14. But not sure
how to invoke Eclipse with the new GTK?

#
# An unexpected error has been detected by Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x0090a464, pid=28615, tid=4160527264
#
# Java VM: Java HotSpot(TM) Server VM (1.6.0_03-b05 mixed mode)
# Problematic frame:
# C  [libgtk-x11-2.0.so.0+0x1e8464]
#
# An error report file with more information is saved as
hs_err_pid28615.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#


Any other ideas?

Thanks
Maggie