gdb + shared libs

[Nick Papadonis]

GNU gdb 5.0
This GDB was configured as "i686-pc-linux-gnu"...
GCC 2.95
GNU ld 2.10.1

- All files are compiled with the '-g' option.
- I would like to debug the file 'gphoto2' and need
  to load symbols from libgphoto2_canon.so.
- I tried the following:

./gdb libgphoto2_canon.so
(gdb) b canon_get_picture 
Breakpoint 1 at 0x3d36: file canon.c, line 536.
(gdb) exec /usr/local/bin/gphoto2
(gdb) set args --camera "Canon PowerShot S100" --port usb --get-picture 1
(gdb) r 
Starting program: /usr/local/bin/gphoto2 --camera "Canon PowerShot S100" --port 
usb --get-picture 1
warning: Cannot insert breakpoint 1:
Cannot access memory at address 0x3d36
(gdb) 


- Why can't I access memory? I also noticed this same problem when
  trying to step into the shared library.

Any insight much appreciated. 



-- 
- Nick