Re: dlopen()

[Russell Shaw <rjshaw@netspace.net.au>]

Jim Blandy wrote:
> On 1/16/06, Russell Shaw <rjshaw@netspace.net.au> wrote:
> 
>>Hi,
>>
>>I do:
>>
>>   void *handle = dlopen("libfile1.so", RTLD_NOW);
>>   ...
>>   newfunc = dlsym(handle, "afunc");
>>   ...
>>   int res = (*newfunc)(app);
>>
>>How do i stop inside the "newfunc" function? I set a breakpoint
>>there, but it doesn't activate.
> 
> After you step over the dlopen call, GDB should have read the symbols
> from libfile1.so.  If you say "break afunc" at that point, what does
> GDB say?
> 
> If that doesn't work for you, you'll need to give us more details. 
> You need to include an actual transcript of your GDB session to start
> with, not just an English description of what you did and what
> happened.  If we don't see any misunderstandings there, then you'll
> need to provide us with a test case we can use to make the problem
> happen on our own machines.

It works now, for some reason. After dlopen(), "info shared" shows that
the symbols are read.