From: gvaughan@oranda.demon.co.uk (Gary V. Vaughan) Subject: another patch for dlopen [was Re: dlopen bug!] 12 Nov 1998 08:22:54 -0800 Message-ID: <36498DA3.72173F70.cygnus.gnu-win32@oranda.demon.co.uk> References: <36481BE9.35E38846@uz.kuleuven.ac.be> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------976F33BF685023FCC77CE066" To: Geoffrey Noer , Jorrit Tyberghein Cc: gnu-win32@cygnus.com This is a multi-part message in MIME format. --------------976F33BF685023FCC77CE066 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit In another thread, I wrote: > > [[wrt my previous patch]] Interestingly, this doesn't > seem to fix my particular problem. Jorrit Tyberghein wrote: > > It seems that dlopen always returns the same handle even if used on > different dll libraries. Aha! *That* is my "particular problem" too. A fix is attached. This is in addition to the previous patch (and the patch from Christian Jullien). I forgot to post a ChangeLog entry yesterday, so I have included both here, and another for Christian's dlsym patch which is attached too. Cheers, Gary. 1998-11-11 Gary V. Vaughan * dlfcn.cc (get_full_path_of_dll): the static return value used to be returned unchanged on second and subsequent calls. It is now correctly reset on each call. 1998-11-10 Christian Jullien * dlfcn.cc (dlsym): returns a handle to the named symbol in the loaded executable if a null pointer is passes in for the module handle. 1998-11-10 Gary V. Vaughan * dlfcn.cc (dlopen): returns a handle to the executable if a null pointer is passed in as the module name. --------------976F33BF685023FCC77CE066 Content-Type: text/plain; charset=us-ascii; name="dlsym-cj-19981110" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="dlsym-cj-19981110" --- dlfcn.cc.orig Tue Nov 10 11:58:45 1998 +++ dlfcn.cc Wed Nov 11 13:09:55 1998 @@ -139,7 +153,12 @@ dlopen (const char *name, int) void * dlsym (void *handle, const char *name) { - void *ret = (void *) GetProcAddress (handle, name); + void * ret = 0; + + if( handle ) + ret = (void *) GetProcAddress (handle, name); + else ret = (void *) GetProcAddress (GetModuleHandle(), name); + if (!ret) set_dl_error ("dlsym"); debug_printf ("ret %p", ret); --------------976F33BF685023FCC77CE066 Content-Type: text/plain; charset=us-ascii; name="dlopen-gvv-19981111" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="dlopen-gvv-19981111" --- dlfcn.cc.orig Tue Nov 10 11:58:45 1998 +++ dlfcn.cc Wed Nov 11 13:09:55 1998 @@ -76,6 +76,8 @@ get_full_path_of_dll (const char* str) // first check if leading "/" or "\" if (name[0] == '/' || name[0] == '\\') ret = name; + else + ret = 0; // current directory if (!ret) --------------976F33BF685023FCC77CE066-- - For help on using this list (especially unsubscribing), send a message to "gnu-win32-request@cygnus.com" with one line of text: "help".