[Sablevm-developer] Re: Bug#164363: libsablevm-native1: UnsatisfiedLinkError when using AWT

[Toby S. <str...@gm...>]

0> In article <103...@gr...>,
0> Grzegorz Prokopski <URL:mailto:gr...@se...> ("Grzegorz") wrote:

Grzegorz> W li=B6cie z pi=B1, 11-10-2002, godz. 21:43, Toby Speight =
pisze:
>> /--------
>> |  loading gtkpeer
>> |  java.lang.UnsatisfiedLinkError: Could not load library =
/usr/lib/sablevm/libgnu-java-awt-peer-gtk-1.0.1.so
>> | 	at java.lang.Runtime.load(Runtime.java:633)
>> |  	at java.lang.Runtime.loadLibrary(Runtime.java:656)
>> |  	at java.lang.System.loadLibrary(System.java:620)
>> |  	at gnu.java.awt.peer.gtk.GtkToolkit.static{}(GtkToolkit.java:74)
>> |  ...
>> \--------

Grzegorz> Strange - why do I see 1.0.1 in above error (and 1.0.4 is
Grzegorz> mentioned as the "Version:")?

I cut-and-pasted from the wrong place (whilst investigating, Google
turned up your message at [1], and I accidentally copied from there
rather than from my shell buffer).  I did indeed see 1.0.4 in the
error message.  Sorry for causing confusion.

[1] =
<URL:http://sourceforge.net/mailarchive/forum.php?thread_id=3D999972&for=
um_id=3D4154>


>> I enclose a patch that adds the right dependencies (works for me).

Grzegorz> The more strange is why this didn't work and why your change
Grzegorz> fixes it.  Are you sure that "just rebuilding" doesn't solve
Grzegorz> the problem?

Yes, I am sure that simply rebuilding doesn't solve it - that was the
first thing I tried.  With the current 1.0.4, the GTK AWT library
doesn't refer to the libraries that provide GTK:

/--------
| .../sablevm-nativelib-1.0.4$ ldd =
debian/libsablevm-native1/usr/lib/sablevm/libgnu-java-awt-peer-gtk.so
|         libc.so.6 =3D> /lib/libc.so.6 (0x4001d000)
|         /lib/ld-linux.so.2 =3D> /lib/ld-linux.so.2 (0x80000000)
\--------


With my patch, the GTK and GThread libraries are (dynamically) linked
in to satisfy dependencies on gdk_threads_mutex, gdk_root_window,
gthread_init, etc.:

/--------
| .../sablevm-nativelib-1.0.4-tms$ ldd =
debian/libsablevm-native1/usr/lib/sablevm/libgnu-java-awt-peer-gtk.so
|         libgtk-1.2.so.0 =3D> /usr/lib/libgtk-1.2.so.0 (0x4001d000)
|         libgdk-1.2.so.0 =3D> /usr/lib/libgdk-1.2.so.0 (0x40142000)
|         libgmodule-1.2.so.0 =3D> /usr/lib/libgmodule-1.2.so.0 =
(0x40175000)
|         libgthread-1.2.so.0 =3D> /usr/lib/libgthread-1.2.so.0 =
(0x40178000)
|         libglib-1.2.so.0 =3D> /usr/lib/libglib-1.2.so.0 (0x4017b000)
|         libpthread.so.0 =3D> /lib/libpthread.so.0 (0x4019d000)
|         libdl.so.2 =3D> /lib/libdl.so.2 (0x401b2000)
|         libXi.so.6 =3D> /usr/X11R6/lib/libXi.so.6 (0x401b5000)
|         libXext.so.6 =3D> /usr/X11R6/lib/libXext.so.6 (0x401bd000)
|         libX11.so.6 =3D> /usr/X11R6/lib/libX11.so.6 (0x401ca000)
|         libm.so.6 =3D> /lib/libm.so.6 (0x40284000)
|         libc.so.6 =3D> /lib/libc.so.6 (0x402a5000)
|         /lib/ld-linux.so.2 =3D> /lib/ld-linux.so.2 (0x80000000)
\--------

I arrived at my patch initially by adding the libraries one at a time
to Makefile each time I discovered an unresolved symbol, but luckily
I remembered the existence of gtk-config before moving the fix to
Makefile.in.


Grzegorz> I think it won't solve it (even if the versions were equal)
Grzegorz> and you experience the same thing as this:
Grzegorz> =
http://sourceforge.net/mailarchive/forum.php?thread_id=3D999972&forum_id=
=3D4154

Yes, that's exactly the issue this patch solves. :-)


Grzegorz> PS: I am Cc:ing SableVM devel for eventuall comments.

I'm not on this list, so any questions, etc., for me should be CCed to =
me
(or to <16...@bu...> which I will check very infrequently).

N.B. - don't follow-up to <su...@bu...>!