dlopen() does not call static constructors on HP-UX

[H. J. Lu]

On Fri, Dec 06, 2002 at 08:06:14AM +0100, Harri Pasanen wrote:
> I suppose this is an old can of worms, but after multiple searches 
> through the mailing list I'm still not enlightened in my specific 
> problem, so here I go.
> 
> Looks like on HP-UX 11.00,  using g++ 3.2, when I link against a shared 
> library containing static objects, their constructors are called.  But 
> if I do dlopen(), or shl_load() for the shared library, the static 
> objects are not initialized.
> 
> Now seems like a HP-UX specific bug, and searching gnats it indeed looks 
> like the same one 
> as PR 8360. 
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8360
> 
> Having full control of the dlopen(), which happens in my C++ source, I'm 
> looking for a way to manually circumvent this bug.  Examining my shared 
> library symbols, looks like there is something called 
> __static_initialization_and_destruction, which I guess arranges for the 
> constructors and destructors to be called.   Is there a way I can 
> arrange my code to call this function after I've done the dlopen()?

I have an impression that DT_INIT_ARRAY/DT_FINI_ARRAY may work with
HP-UX if ELF is used.


H.J.