Debugging with linked shared libraries ....

Debugging with linked shared libraries ....

[Roberto Brunelli]

		I apologize if this is not the correct place for posting.

I would like to debug a c++ program that links shared libraries (files) 
in non standard places:

  1. I set the LD_LIBRARY_PATH so that the program runs fine from my (c)sh

  2. I execute

     gdb myProg

  3. but when I 'run'

  > error while loading shared libraries: librandomLib.so: cannot open
  > shared object file: No such file or directory

  4. If I make the program generate a core and perform

     gdb myProg core.xxxx

     I read

  > Reading symbols from
  > >/hardmnt/..../randomLib/librandomLib.so...done.

    and I am actually able to list the functions within the library and 
to access data within the code of myProg.

What am I doing wrong??

Thanx a lot for any help!


-- 
	<r/>

| Roberto Brunelli, Research Scientist
| TeV Group - ITC-irst
|
|  'You cannot manipulate a marionette with only one string'
|                    from Chapterhouse Dune,  by F. Herbert
         							

Re: Debugging with linked shared libraries ....

[Christophe LYON]

> I would like to debug a c++ program that links shared libraries (files) 
> in non standard places:
> 
>  1. I set the LD_LIBRARY_PATH so that the program runs fine from my (c)sh
> 
>  2. I execute
> 
>     gdb myProg
> 
>  3. but when I 'run'
> 

Presumably your .cshrc resets your LD_LIBRARY_PATH.
'run' starts a new shell, and thus sources your .cshrc.

You have to set your LD_LIBRARY_PATH in your .cshrc

Christophe.

RE: Debugging with linked shared libraries ....

[Kris Warkentin]

Best to 'set solib-search-path <path to my stuff>' in gdb.  Try putting it
in your .gdbinit.

cheers,

Kris 

> -----Original Message-----
> From: gdb-owner@sources.redhat.com 
> [mailto:gdb-owner@sources.redhat.com] On Behalf Of Christophe LYON
> Sent: Tuesday, October 25, 2005 9:55 AM
> To: Roberto Brunelli
> Cc: gdb@sources.redhat.com
> Subject: Re: Debugging with linked shared libraries ....
> 
> 
> > I would like to debug a c++ program that links shared libraries 
> > (files) in non standard places:
> > 
> >  1. I set the LD_LIBRARY_PATH so that the program runs fine from my 
> > (c)sh
> > 
> >  2. I execute
> > 
> >     gdb myProg
> > 
> >  3. but when I 'run'
> > 
> 
> Presumably your .cshrc resets your LD_LIBRARY_PATH.
> 'run' starts a new shell, and thus sources your .cshrc.
> 
> You have to set your LD_LIBRARY_PATH in your .cshrc
> 
> Christophe.
>