Re: Loading shared libraries for core file

[Ben Hutchings <ben.hutchings@businesswebsoftware.com>]

Kris Warkentin wrote:
> Ben Hutchings wrote:
>> Kris Warkentin wrote:
>>> 'info shared' should tell you what it plans to load and whether or not
>>> it has yet.
>>
>> Unfortunately not:
>> "No shared libraries loaded at this time."
>>
> 
> Strange.  Is it possible that your application cored before it loaded 
> the shared libs?  Linux uses lazy linking so if none of your objects had
> been used yet, they might not be loaded.

The process had been running for a while and to get to that point it 
would have had to run code from all the libraries.  It was actually 
running code from a shared library at the point I made the core dump. 
Now gdb won't show me that code!

<snip>
> What do you get when you 'objdump -x <your_app> | grep NEEDED'?

   NEEDED      libboost_thread.so
   NEEDED      libdl.so.2
   NEEDED      libstdc++.so.6
   NEEDED      libm.so.6
   NEEDED      libgcc_s.so.1
   NEEDED      libpthread.so.0
   NEEDED      libc.so.6
   NEEDED      ld-linux.so.2

> Also, you might want to try "LD_DEBUG=all LD_DEBUG_OUTPUT=ld_debug.txt 
> <your_app>" to see what's going on.

It's fairly clear that all the libraries are loaded successfully.

Ben.