[AGENT++] crash due to a call to a __pure_virtual function

[Jacquemin, Jean-Philippe]

Hi,
I am using agent++ for a snmp agent on a i386 target and am facing a
crash due to a call to a pure virtual function.
If I look at my core dump I find a call to "__pure_virtual"
and when I go up I end up in the destructor 
  Agentpp::Oidx::~Oidx (this=0x81bb8cc, __in_chrg=107378216) at
snmp_pp_ext.cpp:791
 
which is indeed declared "virtual" in the Oidx class definition.
     virtual ~Oidx();
and implemented like this :
    Oidx::~Oidx() { }
 
this=0x81bb8cc refers to "_GLOBAL_OFFSET_TABLE" when looking at the
symbols
 
Here is an excerpt of the symbol table where the "__pure_virtual" symbol
can be found :
  1095: 08105ea0    74 FUNC    WEAK   DEFAULT   13
clear__Q27Agentppt4List1Z
  1096: 0804aeec    59 FUNC    GLOBAL DEFAULT  UND rename@@GLIBC_2.0
  1097: 08125800     4 OBJECT  GLOBAL DEFAULT   15
_11CXXProtocol.m_dwExtraD
  1098: 080ae430   212 FUNC    GLOBAL DEFAULT   13
clone__Q27Agentpp15SnmpAd
  1099: 0810400c    27 FUNC    GLOBAL DEFAULT   13 __pure_virtual
  1100: 080d69f0    75 FUNC    GLOBAL DEFAULT   13
set_port__10UdpAddressUs
  1101: 0804c1a4    40 FUNC    GLOBAL DEFAULT   13
ReleaseDataAccess__8CComm
  1102: 0808f2e4  3687 FUNC    GLOBAL DEFAULT   13
from_asn1__Q27Agentpp3Vbx
 
Can someone explain me how to further debug this program ?
 
Thanks in advance !
 
Best regards,
 
JPJ
 
 
 


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