Adding an auxiliary shared library to a debug session

[André Pönitz]

On Sunday 08 November 2009 12:25:51 Andriy Symonovych wrote:
> I'm trying to add some shared library to GDB session to be able to
> call functions from it.
> The only possible way I found is to execute program with
> LD_PRELOAD=/path/to/aux/lib and attach with gdb to it's process.
> Is there any another way?

Assuming that your program links to libdl (and quite a few do...), 
you can use  'call dlopen(....)' (or 'call LoadLibraryA(...)' on Windows) 
on the gdb command line. 

That works fairly reliably with FSF gdb up to and including 
version 6.8, and Apple gdb, but not with FSF gdb 7.0.
(see http://sourceware.org/bugzilla/show_bug.cgi?id=10886).

Andre'