Xref:	news2.mv.net comp.os.msdos.djgpp:6702
From:	alaric AT abwillms DOT demon DOT co DOT uk (Alaric B. Williams)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: __attribute__((section))
Date:	Tue, 30 Jul 1996 17:11:48 GMT
Lines:	33
Message-ID:	<838746598.16082.3@abwillms.demon.co.uk>
References:	<Pine DOT NEB DOT 3 DOT 93 DOT 960729142119 DOT 2833B-100000 AT ananke DOT amu DOT edu DOT pl>
NNTP-Posting-Host:	abwillms.demon.co.uk
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Mark Habersack <grendel AT ananke DOT amu DOT edu DOT pl> wrote:
>>While we're at it, if we can put things easily into different
>>sections, wouldn't that provide a nice easy method of locking memory
>>for hardware interrupt handlers? Stick everything in a '.lock'
>>section, with sentinel labels in it so that a "lock_everything()" call
>>could lock the entire (guaranteed contiguous) section?
>That would be great, but alas would require modification to DJGPP startup code
>that already deals in a special way with constructors/destructors section.

Nah, you just have to call something at startup yourself. Of course,
if it became a Feature, that something could go in crt0...

>>BTW, is there a better way of getting the extent of a section? Some
>>trickery with the linker ADDR and SIZE commands?
>Well, maybe it'd be possible to create a variable in, say, startup code (or at
>least some piece of soft that is guaranteed to be linked into every app) -
>maybe something like vars marking the beginnig and the end of
>destructors/constructors section - this variable would get initialized at
>runtime (or, better, in the ld script) using ld directives you mentioned. Is
>it possible, gurus?

>Greetz, Mark

Regards,


ABW
--
I have become... Comfortably numb...

Alaric B. Williams Internet : alaric AT abwillms DOT demon DOT co DOT uk
<A HREF="http://www.hardcafe.co.uk/Alaric/">http://www.hardcafe.co.uk/Alaric/</A>

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