how to find a missing symbol??

6 Nov 2002

      Via "my way" I upgraded from 8.0 -> 8.1.  I have now a yast2 that reports the 
following error:
/usr/lib/YaST2/bin/y2controlcenter: relocation error: 
/usr/lib/YaST2/bin/y2controlcenter: undefined symbol: __ti7QWidget

As I'm just interested how to debug this, I would appreciate some hints as I 
do not come to the cause of the problems.  Perhaps some of you can help?

This is what I figured out sofar:

From the above error I figure out it is a QT problem.
Does yast2 (y2controlcenter) use QT?  Yes it does see below;

# objdump -p /usr/lib/YaST2/bin/y2controlcenter

/usr/lib/YaST2/bin/y2controlcenter:     file format elf32-i386

Program Header:
     PHDR off    0x00000034 vaddr 0x08048034 paddr 0x08048034 align 2**2
          filesz 0x000000c0 memsz 0x000000c0 flags r-x
   INTERP off    0x000000f4 vaddr 0x080480f4 paddr 0x080480f4 align 2**0
          filesz 0x00000013 memsz 0x00000013 flags r--
     LOAD off    0x00000000 vaddr 0x08048000 paddr 0x08048000 align 2**12
          filesz 0x0001a7a0 memsz 0x0001a7a0 flags r-x
     LOAD off    0x0001a7a0 vaddr 0x080637a0 paddr 0x080637a0 align 2**12
          filesz 0x00006b14 memsz 0x00006cf8 flags rw-
  DYNAMIC off    0x0002094c vaddr 0x0806994c paddr 0x0806994c align 2**2
          filesz 0x000000f0 memsz 0x000000f0 flags rw-
     NOTE off    0x00000108 vaddr 0x08048108 paddr 0x08048108 align 2**2
          filesz 0x00000020 memsz 0x00000020 flags r--

Dynamic Section:
   NEEDED      libqt-mt.so.3
   NEEDED      libXext.so.6
   NEEDED      libX11.so.6
   NEEDED      libstdc++-libc6.2-2.so.3
   NEEDED      libm.so.6
   NEEDED      libc.so.6
   INIT        0x8050854
   FINI        0x8060948
   HASH        0x8048128
   STRTAB      0x804b460
   SYMTAB      0x80491f0

# locate libqt-mt.so.3
/usr/lib/libqt-mt.so.3
/usr/lib/qt-3.0.5/lib/libqt-mt.so.3
/usr/lib/qt-3.0.5/lib/libqt-mt.so.3.0
/usr/lib/qt-3.0.5/lib/libqt-mt.so.3.0.5

#  ls -l /usr/lib/qt-3.0.5/lib/libqt-mt.so.3.0.5
6431056 Oct 21  2002 /usr/lib/qt-3.0.5/lib/libqt-mt.so.3.0.5

Alright lib is there.

I believe that nm should display the symbols in the lib.  Let's try it:
# nm /usr/lib/qt-3.0.5/lib/libqt-mt.so.3.0.5
nm: /usr/lib/qt-3.0.5/lib/libqt-mt.so.3.0.5: no symbols

Now I'm stuck.  How to continue or were to start from??

-- 
Richard Bos
Without a home the journey is endless