From:	Jorrit DOT Tyberghein AT uz DOT kuleuven DOT ac DOT be (Jorrit Tyberghein)
Subject:	dlopen bug!
10 Nov 1998 20:49:34 -0800 :
Message-ID:	<36481BE9.35E38846.cygnus.gnu-win32@uz.kuleuven.ac.be>
Mime-Version:	1.0
To:	gnu-win32 AT cygnus DOT com

Hi, I'm using CygWin B20 on NT4 (SP3) and I think I have found a bug
in dlopen.

It seems that dlopen always returns the same handle even if used on different
dll libraries. For example, I extended the dlopen example from:
    ftp://ftp.xraylith.wisc.edu/pub/khan/gnu-win32/cygb20/misc/

to open two dll's instead of only one and added the following lines to the
code:

    void* dll_handle;
    void* dll_handle2;

    ...

    dll_handle = dlopen ("first.dll", RTLD_LAZY | RTLD_GLOBAL);
    dll_handle2 = dlopen ("second.dll", RTLD_LAZY|RTLD_GLOBAL);

Although first.dll and second.dll are really two different dll's dll_handle
and dll_handle2 are equal to each other. Changing the RTLD flags to
RTLD_NOW or something else doesn't help either.

This is a major setback for me as I need to be able to do dlsym() on individual
dll's (the dll's have functions which have the same name so I need to distinguish
by giving the right dll handle).

Is this a known bug?
Can this be fixed somehow?

Greetings,


--
==============================================================================
Jorrit DOT Tyberghein AT uz DOT kuleuven DOT ac DOT be, University Hospitals KU Leuven BELGIUM

Of course, it is very important to be sober when you take an exam.
Many worthwhile careers in the street-cleansing, fruit-picking and
subway-guitar-playing industries have been founded on a lack of
understanding of this simple fact.
        -- (Terry Pratchett, Moving Pictures)
==============================================================================



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