[fpc-pascal] Problems with Dynlibs.UnloadLibrary on Linux

[Andrew Brunner]

Thanks for that tip!  So running under GDB I get the following info...

This GDB was configured as "x86_64-linux-gnu"...
(gdb) run

Starting program: /mnt/Raid/Developer/Source/Lazarus/Test/TestApplication
[Thread debugging using libthread_db enabled]
[New Thread 0x7f9e79102770 (LWP 7388)]
[WARNING] Out of OEM specific VK codes, changing to unassigned
[WARNING] Out of unassigned VK codes, assigning $FF

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f9e79102770 (LWP 7388)]
0x00007f9e71a38d68 in fpc_finalize ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
(gdb)


#1  0x00007f9e719f6170 in ?? ()
#2  0x00007f9e71c40060 in _$CLASSES$_Ld233 ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
#3  0x00007fff8092e038 in ?? ()
#4  0x00007f9e719f6170 in ?? ()
#5  0x00007f9e71c40060 in _$CLASSES$_Ld233 ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
#6  0x00007fff8092e050 in ?? ()
#7  0x00007f9e719f6170 in ?? ()
#8  0x00007f9e71c40060 in _$CLASSES$_Ld233 ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
#9  0x00007fff8092e068 in ?? ()
#10 0x00007f9e719f6170 in ?? ()
#11 0x00007f9e71c40060 in _$CLASSES$_Ld233 ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
#12 0x00007fff8092e080 in ?? ()
#13 0x00007f9e719f6170 in ?? ()
#14 0x00007f9e71c40060 in _$CLASSES$_Ld233 ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
#15 0x00007fff8092e098 in ?? ()
#16 0x00007f9e719f6170 in ?? ()
#17 0x00007f9e71c40060 in _$CLASSES$_Ld233 ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
#18 0x00007fff8092e0b0 in ?? ()
#19 0x00007f9e719f6170 in ?? ()
#20 0x00007f9e71c40060 in _$CLASSES$_Ld233 ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
#21 0x00007fff8092e0c8 in ?? ()
#22 0x00007f9e719f6170 in ?? ()
#23 0x00007f9e71c40060 in _$CLASSES$_Ld233 ()
   from /home/atbrunner/Source/Lazarus/Libraries/MatrixMemory/MatrixMemoryManager.so
#24 0x00007fff8092e0e0 in ?? ()
#25 0x00007f9e719f6170 in ?? ()
#26 0x00007f9e71c40060 in _$CLASSES$_Ld233 ()

<SNIP>


It appears that something is wrong with the classes unit or something.
 Keep in mind, the compiled library is nothing more than 2 functions
declared as exported booleans that don't have any parameters.



On Wed, Dec 17, 2008 at 8:03 AM, Felipe Monteiro de Carvalho
<felipemonteiro.carvalho at gmail.com> wrote:
> Read this to create a backtrace:
>
> http://wiki.lazarus.freepascal.org/Creating_a_Backtrace_with_GDB
>
> --
> Felipe Monteiro de Carvalho
> _______________________________________________
> fpc-pascal maillist  -  fpc-pascal at lists.freepascal.org
> http://lists.freepascal.org/mailman/listinfo/fpc-pascal
>