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Re: ignoring certain undefined symbols

From: Simon Richter <Simon dot Richter at hogyros dot de>
To: Paul Koning <Paul_Koning at Dell dot com>
Cc: binutils at sourceware dot org
Date: Tue, 20 Apr 2010 23:50:26 +0200
Subject: Re: ignoring certain undefined symbols
References: <20100420134252.GB1806@honey.hogyros.de> <D8CEBB6AE9D43848BD2220619A43F3265BCA1C@M31.equallogic.com>

Hi,

On Tue, Apr 20, 2010 at 09:53:48AM -0400, Paul Koning wrote:

> Make it "weak".

Hmm, that will however affect runtime as well, which I'd rather avoid.

Basically, I'd like to have a diagnostic when a symbol is missing while
linking a plugin, but accept those symbols as missing that will be
provided by the program later on. The plugins need to be linked before
the program though, so they are available for -dlpreopen if the user
decides to link statically.

The plugin should still fail to load if dlopen()ed by anything that
doesn't provide the symbol.

   Simon

References:
- ignoring certain undefined symbols
  - From: Simon Richter
- RE: ignoring certain undefined symbols
  - From: Paul Koning

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