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Date: Fri, 07 Oct 2005 13:49:00 -0000
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References: <bug-13212-7355@http.gcc.gnu.org/bugzilla/>
Subject: [Bug libgcj/13212] JNI/CNI AttachCurrentThread does not register thread with garbage collector
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From: "stewart at neuron dot com" <gcc-bugzilla@gcc.gnu.org>
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------- Comment #10 from stewart at neuron dot com  2005-10-07 13:49 -------
(In reply to comment #9)
> Yes, I'm sure. I know what's going on here.
> 

This is the only bug I was able to find regarding AttachCurrentThread.  I'm
working on getting FUSE-J (Java bindings for FUSE userspace filesystem) working
with GCJ and have run across an apparent bug with
AttachCurrentThread/AttachCurrentThreadAsDaemon whereby the returned JNIEnv has
a corrupted pointer to CallObjectMethod.  I emailed the following to <tromey at
redhat dot com>:

You should be able to setup/reproduce this quickly.  First is to
get/build/install the fuse library:

http://fuse.sourceforge.net/
http://easynews.dl.sourceforge.net/sourceforge/fuse/fuse-2.4.0.tar.gz

./configure --prefix=/usr/local &&
make &&
make install &&
depmod -a &&
modprobe fuse

Second, get fuse-j, the java language bindings

http://www.select-tech.si/fuse/
http://www.select-tech.si/fuse/fuse-j-2.2.3.tar.gz

get and apply my patch for gcj:

http://mrallen.com/misc/fuse-j-2.2.3-gcj.diff

inside fuse-j-2.2.3:

patch -p1 < path_to_patch

then you will need a zip file to test and a mount point. next:

make
sh zipfs_gcj.sh <zip_file> <mount_point>

once it's running, doing a 'df' in another term will crash cause the segfault. 
you will have to have /usr/local/bin in your PATH and execute 'fusermount -u
<mount_point>' to undo the mount. (In reply to comment #9)
> Yes, I'm sure. I know what's going on here.
> 


-- 

stewart at neuron dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |stewart at neuron dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13212