On Thu, 10 Jun 1999, Marcel Ruff wrote:
> Hi,
>
> Im using the Tcl interpreter in a C++ main modul.
>
> When i start the application and invoke the tcl interpreter with
> the package java and try to open a Java GUI i get a crash (output see
> below)
>
> My environment:
> -----------
What linux dist are you using? I have had some problems getting Tcl Blend
working under Debian 2.1 but it seems to work just fine under RedHat 5.1.
I do not think this is related to the problem you are having (the crash
I was seeing was X related) but it might help. Also, I have tested Tcl
Blend with JDK 1.2 pre1 but I have not tried it with pre2 so you are
breaking new ground here.
> Linux 2.2.5 with glibc 2.0.x
> JDK 1.2pre2 (blackdown)
> Tcl 8.0.5
> TclBlend 1.2.3
> egcs gcc-2.95 19990602 (prerelease)
>
Humm, I have never tried to compile my own executable that will load
Tcl and Tk. You might want to try making your executable into a shared
lib that Tcl can load. That way you can use the jtclsh wrapper script
that comes with 1.2.3. There are some really nasty shared lib issues
with the JDK under Linux that the wrapper does for you. If you do not
use the wrapper for tclsh you will need to do these same things in your
executable.
> the libraries in my executable:
> -------------------
> ldd pled.exe
> libpthread.so => /usr/lib/libpthread.so (0x40008000)
> libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x40016000)
> libpng.so.2 => /usr/X11R6/lib/libpng.so.2 (0x400bb000)
> libz.so.1 => /usr/lib/libz.so.1 (0x400d8000)
> libtiff.so.3 => /usr/lib/libtiff.so.3 (0x400e8000)
> /u/pia/lib/libtcl8.0.so => /u/pia/lib/libtcl8.0.so (0x4011b000)
> libdl.so.2 => /lib/libdl.so.2 (0x40187000)
> /u/pia/lib/libtk8.0.so => /u/pia/lib/libtk8.0.so (0x4018b000)
> libstdc++-libc6.0-1.so.2 =>
> /usr/local/lib/libstdc++-libc6.0-1.so.2 (0x40231000)
> libm.so.6 => /lib/libm.so.6 (0x40273000)
> libc.so.6 => /lib/libc.so.6 (0x4028d000)
> libjpeg.so.6 => /usr/lib/libjpeg.so.6 (0x4033a000)
> /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x2aaaa000)
>
>
>
> ------- output when invoking java from C++ using TclBlend 1.2.3 -------
> SIGSEGV 11* segmentation violation
> stackpointer=0xbfffbfa8
>
> Full thread dump Classic VM (Linux_JDK_1.2_pre-release-v2, native
> threads):
> "Finalizer" (TID:0x40760320, sys_thread_t:0x82ac368, state:CW,
> native ID:0xc03) prio=8
> at java.lang.Object.wait(Native Method)
> at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:112)
> at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127)
> at
> java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:174)
> "Reference Handler" (TID:0x407603b0, sys_thread_t:0x82a7a80,
> state:CW, native ID:0x802) prio=10
> at java.lang.Object.wait(Native Method)
> at java.lang.Object.wait(Object.java:424)
> at
> java.lang.ref.Reference$ReferenceHandler.run(Reference.java:114)
> "SIGQUIT handler" (TID:0x407603e0, sys_thread_t:0x82a0508, state:R,
> native ID:0x401) prio=5
> "main" (TID:0x407601e0, sys_thread_t:0x821a898, state:R, native
> ID:0x400) prio=5
Did you try turning the JIT compiler off? Try that and see if it helps.
I think you need to pass -Djava.compiler= to the java command line
(which is the tclblend_init var in tcl blend).
> at java.lang.String.valueOf(Compiled Code)
> at java.lang.Compiler.<clinit>(Compiler.java:68)
> Monitor Cache Dump:
> java.lang.ref.Reference$Lock@407603C0/40795B20: <unowned>
> Waiting to be notified:
> "Reference Handler" (0x82a7a80)
> java.lang.ref.ReferenceQueue$Lock@40760338/40796028: <unowned>
> Waiting to be notified:
> "Finalizer" (0x82ac368)
> <unknown key> (0x40760131): owner "main" (0x821a898) 1 entry
> Registered Monitor Dump:
> PCMap lock: <unowned>
> utf8 hash table: <unowned>
> JNI pinning lock: <unowned>
> JNI global reference lock: <unowned>
> BinClass lock: <unowned>
> Class linking lock: <unowned>
> System class loader lock: <unowned>
> Code rewrite lock: <unowned>
> Heap lock: <unowned>
> Monitor cache lock: owner "main" (0x821a898) 1 entry
> Thread queue lock: owner "main" (0x821a898) 1 entry
> Dynamic loading lock: <unowned>
> Monitor registry: owner "main" (0x821a898) 1 entry
> -----------------------------------------
>
>
> -------------------- the gdb output:
> (gdb) run
> Starting program: /u/pia/bin/pled.exe
> [New Thread 23933]
> [New Thread 23932]
> [New Thread 23934]
>
> Program received signal ?, Unknown signal.
> [Switching to Thread 23934]
>
> Program received signal ?, Unknown signal.
> 0x403140e4 in __syscall_sigsuspend () at soinit.c:27
> soinit.c:27: No such file or directory.
> (gdb) where
> #0 0x403140e4 in __syscall_sigsuspend () at soinit.c:27
> #1 0x40339320 in __DTOR_END__ ()
> #2 0x4001bb69 in sem_wait (sem=0x82a04b4) at restart.h:49
> #3 0x403e881d in _start (tid_=0x82a0438) at
> ../../../../../src/linux/hpi/native_threads/src/threads_md.c:319
> #4 0x40019587 in pthread_start_thread (arg=0xbf9ffea4) at manager.c:192
>
>
>
>
> -----------------
Do you mean that you can use swing components inside Tcl Blend
loaded into tclsh with the jtclsh wrapper?
> My environment seems to be ok, because i can start the Swing GUI
> manually with tclsh8.0.
First off, compile Tcl with --enable-symbols so that debug symbols
are placed into the tcl and tcl blend shared libs.
Rebuild Tcl and reconfigure Tcl Blend. Then open up the Makefile
and add -DTCLBLEND_DEBUG to the CFLAGS. That will print some extra
output to stderr when creating the JVM inside Tcl Blend. Then you
can set the tclblend_init global var in the tcl shell before
loading tclblend. There is more info about how to do this
on the "whats new" page at www.scriptics.com/java.
> Has anybody an idea what to try, or where to debug?
>
> Where can i set the debuglevel of the JVM throu TclBlend?
>
> Has anybody running similar configuration where works fine??
>
>
> Thanks for a hint,
>
> Marcel
>
>
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