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From: "Ralf Habacker" <Ralf DOT Habacker AT saght DOT tessag DOT com>
To: "Cygwin" <cygwin AT cygwin DOT com>
Subject: AW: Status of cygwin KDE project - beta version of dll based qt 2.3.0 library is running
Date: Mon, 14 May 2001 16:54:19 +0200
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> Von: Robert Collins [mailto:robert DOT collins AT itdomain DOT com DOT au]
> Gesendet am: Montag, 14. Mai 2001 16:16
> An: Ralf Habacker; Cygwin
> Cc: Alan Hourihane
> Betreff: Re: Status of cygwin KDE project - beta version of dll based qt
> 2.3.0 library is running
>
> Could you provide the source for your DLLMain?
>
> Rob
>
Here is it. (It coms from libtool) Note that there is a definition of
WinMain because I have single libs which need this. Perhaps you can
eliminate this.

Note that I've used this compile/link command.

libname - basic lib name without extension
libobjs - means the object files to integrae into the lib
deplibs - means all libs where this lib depends off

g++ -c ltdll.c
g++ -shared -nostartfiles -Wl,-e,_DllMain AT 12 -Wl,--out-implib,$(libname).dll
.a -o $(libname).dll
 	-Wl,--whole-archive $(libobjs) ltdll.o -Wl,--no-whole-archive $(deplibs)

Regards

Ralf Habacker
EMail: Ralf AT habacker DOT de
       Ralf DOT Habacker AT saght DOT tessag DOT com

> ----- Original Message -----
> From: "Ralf Habacker" <Ralf DOT Habacker AT saght DOT tessag DOT com>
> To: "Cygwin" <cygwin AT cygwin DOT com>
> Cc: "Alan Hourihane" <alanh AT fairlite DOT demon DOT co DOT uk>
> Sent: Monday, May 14, 2001 11:46 PM
> Subject: AW: Status of cygwin KDE project - beta version of dll based qt
> 2.3.0 library is running
>
>
> > Hi Alan,
> >
> > in the last mail I have written, that you only need -shared to
> generate such
> > a lib.
> >
> > For big libs with C++ code such kde I have used a special startup
> routine
> > DLLMain which does some cygwin specific initialisations in libs.
> > Without that, an segment violation occurred on exiting such
> applications.
> > Perhaps there is another way I dont know about.
> >
> > At second I've used .... -Wl,--whole archive
> $(OBJS) -Wl,--no-whole-archive
> > $(DEPENDED_LIBS) .... command parameters to import all symbols in my
> object
> > files, otherwise the linker eliminates not used functions.
> >
> > Regards
> >
> > Ralf Habacker
> > EMail: Ralf AT habacker DOT de
> >        Ralf DOT Habacker AT saght DOT tessag DOT com
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: Alan Hourihane [mailto:alanh AT fairlite DOT demon DOT co DOT uk]
> > > Gesendet am: Donnerstag, 10. Mai 2001 11:42
> > > An: Ralf Habacker
> > > Betreff: Re: Status of cygwin KDE project - beta version of dll
> based qt
> > > 2.3.0 library is running
> > >
> > > On Wed, May 09, 2001 at 03:37:28PM +0200, Ralf Habacker wrote:
> > > > Hi,
> > > > I have check this too and my client programm runs
> > > >
> > > > $ ./client
> > > > Dll sees var=123
> > > > we see var=123
> > > > setting var=456
> > > > Dll sees var=456
> > > > we see var=456
> > > >
> > > > Dll sees var=90
> > > > we see var=90
> > > >
> > > > Dll sees foo=9
> > > > we see foo=9
> > > > setting foo=19
> > > > Dll sees foo=19
> > > > we see foo=19
> > > >
> > > > Calling dllimported function pointer:
> > > > Dll sees foo=19
> > > >
> > > Thanks Ralf.
> > >
> > > When you build KDE, are there any other options you pass to the
> linker
> > > apart from -Wl,--imp-outlib,libxxx.a ?
> > >
> > > Do you enable '--enable-auto-image-base' or '--enable-dynamic' ?
> > >
> > > Alan.
> > >
> >
> >
> > --
> > Want to unsubscribe from this list?
> > Check out: http://cygwin.com/ml/#unsubscribe-simple
> >
> >
>
>

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=0A=
#define WIN32_LEAN_AND_MEAN=0A=
#include <windows.h>=0A=
#undef WIN32_LEAN_AND_MEAN=0A=
#include <stdio.h>=0A=
=0A=
#ifdef __cplusplus=0A=
extern "C" {=0A=
#endif =0A=
=0A=
BOOL APIENTRY DllMain (HINSTANCE hInst, DWORD reason, LPVOID reserved);=0A=
=0A=
#include <cygwin/cygwin_dll.h>=0A=
DECLARE_CYGWIN_DLL( DllMain );=0A=
HINSTANCE __hDllInstance_base;=0A=
#ifdef __cplusplus=0A=
}=0A=
#endif =0A=
=0A=
BOOL APIENTRY=0A=
DllMain (HINSTANCE hInst, DWORD reason, LPVOID reserved)=0A=
{=0A=
  __hDllInstance_base =3D hInst;=0A=
  return TRUE;=0A=
}=0A=
=0A=
int APIENTRY WinMain(HINSTANCE,HINSTANCE,LPSTR,int)=0A=
{=0A=
        return 0;=0A=
}=0A=
=0A=


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