Date: Wed, 2 Sep 1998 07:12:35 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: bde@zeta.org.au (Bruce Evans) Cc: jdp@polstra.com, reilly@zeta.org.au, current@FreeBSD.ORG Subject: Re: ELF binaries size Message-ID: <199809020712.AAA22111@usr02.primenet.com> In-Reply-To: <199809020214.MAA20550@godzilla.zeta.org.au> from "Bruce Evans" at Sep 2, 98 12:14:40 pm
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> >The mapping of the data in the address space is such that the first > >data page is mapped after the last text page. So in the address > >space, it looks like this: > > > > +---+---+---+---+ > >text | | | | : | > > +---+---+---+---+ > > +---+---+---+---+ > >data | : | | | | [ ... ] > I think it implies that elf wastes a full page of memory (the space > between the ':'s above) most of the time (unless the ':'s are on a > page boundary), while aout only wastes an average of half a page > (the space between the text ':' and the end of the page). Actually, it implies that the x86 architecture wastes a full page of memory, by not supportin byte-level protection resoloution. This is not limited to the x86, in fact... Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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