Thanks,
I added the code and compiles on scratchbox...in that environement I get :
******* NATIVE LIB OPEN /usr/local/classpath/lib/classpath/libjavanio.so
The verbose output is attaches as txt. When I copy this over to the native
platform I now get cannot open binary file...I am verifiying that the code
changes you asked are doing this.
On 10/8/07, Robert Lougher <[EMAIL PROTECTED]> wrote:
>
> Hi Larry,
>
> On 10/8/07, Larry Suto <[EMAIL PROTECTED]> wrote:
> > Thanks for the info....I am compiling with the defaults and when I copy
> the
> > files over to the target I am placing them in a linux filesystem at the
> > default locations and then I nfs mount it to the target and the I chroot
> .
> > in the mounted directory so it seems like I have the files in the
> default
> > location
> >
> > I tried the override and it seems like it went further:
> >
> > ./jamvm
> > -Xbootclasspath:/usr/local/jamvm/share/jamvm:/usr/local/classp
> > ath/share/classpath
> > -Dgnu.classpath.boot.library.path=/usr/local/classpath/lib/c
> > lasspath Test
> > Exception occurred while VM initialising.
> > java/lang/NoClassDefFoundError: java/lang/Thread
> >
>
> No, java.lang.Thread is the first class JamVM attempts to load, so
> it's failed almost immediately. It looks like you've specified the
> bootclasspath wrong... Have a look in /usr/local/jamvm/share/jamvm
> and /usr/local/classpath/share/classpath. The classes should be in
> classes.zip and glibj.zip. This needs to be specified (i.e.
>
> -Xbootclasspath:/usr/local/jamvm/share/jamvm/classes.zip:/usr/local/classpath/share/classpath/glibj.zip).
>
> But this is irrelevant. By using chroot the classes should look like
> they're in the right place anyway.
>
> My guess would be that JamVM is finding the library correctly, but a
> dependency is failing, so the dlopen fails. You'll need to add a
> debug printf to discover the cause.
>
> In jamvm/src/os/linux/os.c
>
> change:
>
> void *nativeLibOpen(char *path) {
> return dlopen(path, RTLD_LAZY);
> }
>
> to
>
> void *nativeLibOpen(char *path) {
> void *ret;
>
> printf("******** NATIVE LIB OPEN %s\n", path);
>
> ret = dlopen(path, RTLD_LAZY);
>
> if(ret == NULL)
> printf("DLOPEN FAILED %s\n", dlerror());
>
> return ret;
> }
>
>
> Also, when running the test, please add -verbose -verbose:jni this
> will indicate whether JamVM is finding the boot classes, and what JNI
> methods it's trying to call.
>
> Rob.
>
> > for jamvm I use ./configure
> > for classpath I use ./configure --with-jikes --enable-jni
> --disable-gtk-peer
> > --disable-gconf-peer --disable-plugin
> >
> >
> > On 10/8/07, Robert Lougher <[EMAIL PROTECTED]> wrote:
> > > Hi,
> > >
> > > On 10/8/07, Christian Thalinger <[EMAIL PROTECTED]> wrote:
> > > > On Mon, 2007-10-08 at 01:42 -0700, Larry Suto wrote:
> > > > > Hi I am trying to get classpath .93 compiled for a Marvell ARM5
> > > > > processor.....I can compile in the scratchbox crosscompile
> environment
> > > > > without any problems...but if copy the classpath files over to
> the
> > > > > native environmentI get this error from jamvm
> > > > >
> > > > > sh-2.05b# ./gjar
> > > > > Cannot create system class loader
> > > > > Exception occured while printing exception
> > > > > (java/lang/NoClassDefFoundError)...
> > > > > Original exception was java/lang/UnsatisfiedLinkError
> > > >
> > > > Can you run JamVM with -verbose:jni to see which native method is
> > > > failing?
> > > >
> > > > - twisti
> > > >
> > >
> > > Could you also provide details of how you configured/built JamVM and
> > Classpath?
> > >
> > > In general, there are two common problems people have when
> > > cross-compiling JamVM :
> > >
> > > 1) They configure JamVM/Classpath on the host to install in one place,
> > > and then copy the files to somewhere else on the target. This doesn't
> > > work, because JamVM builds at compile time default boot class and
> > > library paths based on where it was configured to be installed.
> > >
> > > By default, JamVM is installed in /usr/local/jamvm, and Classpath
> > > /usr/local/classpath. You can change the place using --prefix=xxx
> > > when running configure. If you also move Classpath, you need to tell
> > > JamVM this by using the --with-classpath-install-dir=xxx
> > configure
> > > option (this should be set to the --prefix value you gave to
> > > Classpath's configure).
> > >
> > > You can also override the defaults at runtime, e.g.
> > >
> > > jamvm
> >
> -Xbootclasspath:/path/to/JamVMs/classes.zip:/path/to/Classpaths/glibj.zip
> > >
> > -Dgnu.classpath.boot.library.path=/path/to/Classpaths/lib/dir
> > ...
> > >
> > > 2) Copying Classpath onto a fat/vfat formatted device.
> > >
> > > When Classpath is built, libtool creates library names with version
> > > numbers in them, and creates symbolic links for shorter forms (from
> > > memory) :
> > >
> > > libX.so.0.0.0
> > > libX.so.0 -> libX.so.0.0
> > > libX.so -> libX.so.0
> > >
> > > The problem is fat/vfat does not support symbolic links, so the short
> > > forms are lost when Classpath is copied onto it.
> > >
> > > Either:
> > >
> > > a) For each library in .../classpath/llib/classpath rename
> > > libX.so.0.0.0 to libX.so
> > >
> > > or,
> > >
> > > b) Use tar and the -h option to follow the sybolic links. However,
> > > this will create 3 versions of each library when you unpack, so you
> > > should delete the libX.so.0, and libX.so.0.0 versions.
> > >
> > >
> > > Hope this helps,
> > >
> > > Rob.
> > >
> >
> >
>
[Loaded java/lang/Object from /usr/local/classpath/share/classpath/glibj.zip]
[Linking class java/lang/Object]
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[Loaded java/lang/Class from /usr/local/classpath/share/classpath/glibj.zip]
[Linking class java/lang/Class]
[Loaded java/lang/Runnable from /usr/local/classpath/share/classpath/glibj.zip]
[Linking class java/lang/Runnable]
[Loaded java/lang/Thread from /usr/local/classpath/share/classpath/glibj.zip]
[Linking class java/lang/Thread]
[Loaded java/lang/VMThread from /usr/local/jamvm/share/jamvm/classes.zip]
[Linking class java/lang/VMThread]
[Loaded java/lang/Comparable from
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[Linking class java/lang/Cloneable]
[Created primitive class char]
[Created array class [C]
[Loaded gnu/classpath/VMStackWalker from
/usr/local/jamvm/share/jamvm/classes.zip]
[Linking class gnu/classpath/VMStackWalker]
[Dynamic-linking native method
gnu.classpath.VMStackWalker.getCallingClassLoader ... internal]
[Loaded java/lang/VMClass from /usr/local/classpath/share/classpath/glibj.zip]
[Linking class java/lang/VMClass]
[Dynamic-linking native method java.lang.VMClass.forName ... internal]
[Created array class [Ljava/lang/Thread;]
[Dynamic-linking native method java.lang.VMClass.getComponentType ... internal]
[Loaded java/lang/Thread$UncaughtExceptionHandler from
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[Linking class java/lang/Thread$UncaughtExceptionHandler]
[Loaded java/lang/ThreadGroup from
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[Linking class java/lang/ThreadGroup]
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[Created array class [Ljava/lang/Object;]
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[Created array class [Ljava/lang/StackTraceElement;]
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[Linking class java/lang/OutOfMemoryError]
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internal]
[Created primitive class int]
[Created array class [I]
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[Linking class java/nio/Buffer]
[Loaded java/nio/ByteBuffer from /usr/local/classpath/share/classpath/glibj.zip]
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[Loaded java/nio/DirectByteBufferImpl from
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[Linking class java/nio/DirectByteBufferImpl]
[Loaded gnu/classpath/Pointer from
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[Loaded gnu/classpath/Pointer32 from
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[Loaded java/lang/ClassLoader$StaticData from
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[Linking class java/lang/ClassLoader$StaticData]
[Loaded java/lang/VMClassLoader from /usr/local/jamvm/share/jamvm/classes.zip]
[Linking class java/lang/VMClassLoader]
[Loaded java/util/Map from /usr/local/classpath/share/classpath/glibj.zip]
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[Linking class java/util/HashMap$HashEntry]
[Created array class [Ljava/util/HashMap$HashEntry;]
[Dynamic-linking native method java.lang.VMClassLoader.getBootClassPathSize ...
internal]
[Dynamic-linking native method java.lang.VMClassLoader.getBootClassPathResource
... internal]
[Created array class [Ljava/lang/String;]
[Loaded gnu/classpath/SystemProperties from
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[Linking class gnu/classpath/SystemProperties]
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[Created array class [Ljava/util/Hashtable$HashEntry;]
[Loaded gnu/classpath/VMSystemProperties from
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[Linking class gnu/classpath/VMSystemProperties]
[Dynamic-linking native method gnu.classpath.VMSystemProperties.preInit ...
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[Loaded java/util/Comparator from
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[Loaded java/lang/String$CaseInsensitiveComparator from
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[Loaded java/lang/VMSystem from /usr/local/classpath/share/classpath/glibj.zip]
[Linking class java/lang/VMSystem]
[Dynamic-linking native method java.lang.VMSystem.arraycopy ... internal]
[Dynamic-linking native method gnu.classpath.VMSystemProperties.postInit ...
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[Loaded java/lang/VMObject from /usr/local/classpath/share/classpath/glibj.zip]
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[Loaded java/util/Set from /usr/local/classpath/share/classpath/glibj.zip]
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[Loaded java/util/Collections$SynchronizedCollection from
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[Loaded java/util/Collections$SynchronizedSet from
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[Linking class java/util/Iterator]
[Loaded java/util/Collections$SynchronizedIterator from
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[Loaded java/io/FileDescriptor from
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[Linking class java/nio/channels/GatheringByteChannel]
[Loaded java/nio/channels/ScatteringByteChannel from /usr/local/classpath/shar
