Date: Tue, 24 Nov 1998 11:47:52 -0800 (PST) From: John Polstra <jdp@polstra.com> To: jagapen@whitewater.chem.wisc.edu Cc: hackers@FreeBSD.ORG Subject: Re: ELF Global Constructors Message-ID: <199811241947.LAA00814@vashon.polstra.com> In-Reply-To: <Pine.NXT.4.05.9811190119410.973-100000@swamp>
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In article <Pine.NXT.4.05.9811190119410.973-100000@swamp>,
Jonathan Gapen <jagapen@whitewater.chem.wisc.edu> wrote:
> I'm in the process of porting GNUstep to FreeBSD 3.0, and I've run
> into a lack of documentation. Consequently, I don't know where the
> problem lies. It's like this:
> GNUstep needs to have a function _gnu_process_args() called before
> main() to set up information about the process for use by the Foundation
> library.
Check out the gcc info pages, in the section "Function Attributes".
Here's the section of interest:
`constructor'
`destructor'
The `constructor' attribute causes the function to be called
automatically before execution enters `main ()'. Similarly, the
`destructor' attribute causes the function to be called
automatically after `main ()' has completed or `exit ()' has been
called. Functions with these attributes are useful for
initializing data that will be used implicitly during the
execution of the program.
It does go on to say this, though, so you'll have to use C:
These attributes are not currently implemented for Objective C.
Anyway, it should work for C if you add "__attribute__ ((constructor))"
at the end of the function declaration.
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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