From: Marc Espie <espie@quatramaran.ens.fr>
To: ROGER.K.WELLS@saic.com
Cc: gcc@gcc.gnu.org
Subject: Re: shared library, init
Date: Fri, 21 Sep 2001 16:51:00 -0000 [thread overview]
Message-ID: <200109212350.f8LNolN25875@quatramaran.ens.fr> (raw)
In-Reply-To: <00d301c14103$3c921b00$f05a798b@mtg.saic.com>
In article < 00d301c14103$3c921b00$f05a798b@mtg.saic.com > you write:
>When I use the linker flag, -Wl,-init, the linker complains that my _init()
>conflicts with one in crti.o. When I give the -init flag the name of a
>function that I supply it is ignored. Can someone advise me of the correct
>syntax to establish a shared library initialization (& termination)
>function.
In the gcc context, assuming this is C, see attribute constructor and
destructor in the gcc documentation. For C++, this is even more trivial.
This assumes you're running gcc on a platform with full support for
this (which is either provided directly by ld + ELF or by collect2 usually).
Note that the semantics are a bit hard to guarantee and check: it is often
unknown in which order several initialisation routines will be run (and how
many times), and it is even harder to be sure that a finalization routine
will actually be run...
prev parent reply other threads:[~2001-09-21 16:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-19 5:04 Roger Wells
2001-09-21 16:51 ` Marc Espie [this message]
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