From owner-freebsd-hackers  Wed Jan 20 16:16:02 1999
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From: John Polstra <jdp@polstra.com>
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Date: Wed, 20 Jan 1999 16:15:52 -0800 (PST)
Message-Id: <199901210015.QAA05959@vashon.polstra.com>
To: jkf@calweb.com
Subject: Re: Symbol mappings in loadable objects.
Newsgroups: polstra.freebsd.hackers
In-Reply-To: <013301be44ab$9c366720$3387adcf@devnull.calweb.com>
Organization: Polstra & Co., Seattle, WA
Cc: hackers@FreeBSD.ORG
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In article <013301be44ab$9c366720$3387adcf@devnull.calweb.com>,
Jason K. Fritcher <jkf@calweb.com> wrote:
> >
> >gcc -export-dynamic -g -o blah blah.c
> 
> That did the trick on the 3.0 box.
> 
> Just to try it, I compiled this code without the -export-dynamic flag on a
> 2.2.5 box and it works. Why is the default of 2.2.5 to export the symbols,
> and in 3.0 a flag is needed?

Because 2.2.5 uses the a.out object file format, while 3.0 uses ELF.
They're two entirely different linkers, and they don't behave 100%
identically.

John
-- 
  John Polstra                                               jdp@polstra.com
  John D. Polstra & Co., Inc.                        Seattle, Washington USA
  "Nobody ever went broke underestimating the taste of the American public."
                                                            -- H. L. Mencken

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