Linux Shared Library Fun

[jeff]

jeff wrote:
> So, I've been messing around with creating shared libraries in D and 
> then dynamically loading them into another D program and calling the 
> functions. Thus far this is very simple: just using a function that 
> prints "hello" in the library and then the main program loads it.
> 
> This whole thing works perfectly if the library is created in C and 
> compiled into a .so with gcc. Fun problems arise when I try to compile 
> the library in D with gdc (since dmd does not support creation of 
> libraries under Linux... which makes me sad). The compilation and 
> creation of the library itself is fine... However, when I try to load 
> the library in the main program it comes up with this fun error:
> ./testlib.so: undefined symbol: __data_start
> 
> I'm using dlopen, dlsym, etc to pull stuff from the library. I also 
> tried std.loader but since it's basically a front-end to dlopen the same 
> error occurs.
> 
> nm indeed shows that __data_start is undefined in the compiled D 
> library. I've tried lazy binding and that does not solve the problem 
> either.
> 
> Any ideas would be appreciated.

And also I apologize profusely in advance if this isn't the proper 
newsgroup to put this in...