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Re: More on entry point option for ld

To: Carlo Wood <carlo at alinoe dot com>
Subject: Re: More on entry point option for ld
From: Richard Henderson <rth at redhat dot com>
Date: Fri, 29 Jun 2001 10:13:00 -0700
Cc: Fergus Henderson <fjh at cs dot mu dot oz dot au>, Jeff Parker <JEFFREY dot H dot PARKER at saic dot com>, gcc at gcc dot gnu dot org, libstdc++ at gcc dot gnu dot org
References: <3B3C9591.A221F6BF@mtg.saic.com> <20010630012651.B10591@hg.cs.mu.oz.au> <20010629182805.A12402@alinoe.com>

On Fri, Jun 29, 2001 at 06:28:05PM +0200, Carlo Wood wrote:
> And what if you want to do initialization of a shared library
> *after* initialization of libc and libstdc++ but *before*
> any constructor of global objects of other libraries (or the
> main program) are called?

You're screwed.  Shared library initialization happens *before*
any code from the application is run at all.

You can get sort of close with an LD_PRELOAD library that runs
your initialization code from a constructor.

r~

Follow-Ups:
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References:
- More on entry point option for ld
  - From: Jeff Parker
- Re: More on entry point option for ld
  - From: Fergus Henderson
- Re: More on entry point option for ld
  - From: Carlo Wood

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