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Article #3393Re: C++ globals and shared lib, how to ?
From: Yves Dufournaud
Date: Wed, 03 Feb 1999 00:00
Date: Wed, 03 Feb 1999 00:00
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Casper H.S. Dik - Network Security Engineer wrote: > > [[ PLEASE DON'T SEND ME EMAIL COPIES OF POSTINGS ]] > > Steve<_s_t_e_v_e_@maths.tcd.ie> no underscores writes: > > >Yves Dufournaud <Yves.Dufournaud@imag.fr> writes: > > >>I'am trying basic things using dlopen with g++-2.7.2.3 on sunos 5.5 : > >>but when I load it with a dlopen and using RTLD_NOW > >>constructor of global object are not called. > > >Isn't this a known bug with sunos? You could always > >find the initialisation routine and call it manually > >I suppose. > > No, this works fine in Solaris 2.x (SunOS 5.x), which is what he is using. > You need to link with the compiler and probably with a newer version of > gcc/g++ too. I've followed the advice that many of you gave me : that is trying to use a newer version of g++. It seems that using the new version ( I've tried both g++-2.8.1 and egcs-?) I can't compile my code due to unresolved reference : In this case, the unresolved reference is a global symbol which must stay in the caller code (the one which do the dlopen call) I see no reason why it couldn't be done, but then how can I build the shared object without resolving that reference at compile time. I've tried the -Ur flag, but without much success. When I do that I get many unresolved reference comming from the standard lib, and their is no object file produced. Cheers, Yves -- Yves Dufournaud Email Yves.Dufournaud at imag.fr equipe MOVI laboratoire GRAVIR --
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fc89c,3b56ba1236b2e4f X-Google-Attributes: gidfc89c,public X-Google-Thread: 10ba33,3b56ba1236b2e4f X-Google-Attributes: gid10ba33,public X-Google-Thread: 11035d,3b56ba1236b2e4f X-Google-Attributes: gid11035d,public From: Yves Dufournaud <Yves.Dufournaud@imag.fr> Subject: Re: C++ globals and shared lib, how to ? Date: 1999/02/03 Message-ID: <36B86AE9.3A83@imag.fr> X-Deja-AN: 440209612 Content-Transfer-Encoding: 7bit References: <36B5EA0E.2361@imag.fr> <799gho$lpt@salmon.maths.tcd.ie> <casper.918048827@nl-usenet.sun.com> Content-Type: text/plain; charset=us-ascii Organization: Unite de Recherche INRIA Rhone-Alpes France Mime-Version: 1.0 Newsgroups: comp.unix.programmer,comp.unix.solaris,gnu.g++.help