Program abort and dlopen()

[Phil Edwards]

On Mon, Jun 03, 2002 at 05:22:01PM -0700, Bill Moseley wrote:
> >On Mon, Jun 03, 2002 at 11:15:34AM -0700, Bill Moseley wrote:
> >> My primary question is: does libstdc++ call dlopen() during an exception,
> >> or does it call any functions that might cause dlopen() to be called?
> >
> >No and no.  libstdc++ is self-contained.  (Well, it depends on libc.)
> 
> >> My secondary question is: how do I debug this problem?
> >
> >Search the mail archives for RTLD_NOW and RTLD_LAZY.  There are some loader
> >flags that will cause some C++ features to simply not work in a sane manner.
> 
> Hum, I did search the archives and didn't see anything.  Did you mean the
> libstdc++ archive?  Four hits for RTLD_LAZY and none for RTLD_NOW.  Sorry
> if I missed what you meant.

Actually, anything with RTLD, and any of the lists:  gcc.gnu.org/lists.html.
I should have been more clear.


> You say libstdc++ is self-contained.  Ok, I guess I was wondering if
> anything that happens when processing an exception might cause a dlopen
> (perhaps in another library used by libstdc++).

Not inherently.  If "another library used by libstdc++" wants to do

    try { ..... }
    catch (whatever)
    {
        ...  dlopen() ...
    }

then that's up to that library and the program using the library.


Phil

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