Setting breakpoints in a virtual function on a dynamically loaded DLL

[Daniel Jacobowitz]

On Sun, Mar 31, 2002 at 07:52:31PM -0500, Koon-Seng Lim wrote:
> Hi,
> 
> I'm trying to set a breakpoint in a virtual function (new_foo::bar())
> implemented in a DLL (testdll.dll) which I load dynamically from an .exe
> (fooloader.exe). I get the following errors:
> 
> $ gdb fooloader.exe
> ...
> (gdb) shared testdll.dll
> (gdb)
> (gdb) break new_foo::bar
> Error: Cannot access memory at address 0x010001014
> 
> If I forcibly set a breakpoint at new_foo::bar using the GUI, I get an
> error dialog that says "cannot insert breakpoint 1:" and the message
> "Error: Cannot access memory at address 0x01000101e" in the console
> window.
> 
> My question is:
> 1. Is there any way at all to set a breakpoint in the testdll.dll?
> 2. Did I doing something silly? The code is very simple and it steps
> correctly under the MSVC debugger.
> 
> I'm running gdb 5.0 with the Insight GUI on cygwin 1.3.10 on a windows
> box. Any help is greatly appreciated!!!

- What version of GCC are you using?
- Please try a GDB snapshot; 5.0 is very old now, and has rotten C++
support.

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer