Date: Mon, 21 May 2007 08:49:34 -0600 From: Scott Long <scottl@samsco.org> To: =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no> Cc: Kris Kennaway <kris@obsecurity.org>, freebsd-current@freebsd.org, Harald Schmalzbauer <h.schmalzbauer@omnisec.de> Subject: Re: strange "Exec format error" (gcc4.2 suspicious) Message-ID: <4651B17E.7070909@samsco.org> In-Reply-To: <86wsz2tqoa.fsf@dwp.des.no> References: <200705201954.00476.h.schmalzbauer@omnisec.de> <868xbjib8t.fsf@dwp.des.no> <200705202130.55833.h.schmalzbauer@omnisec.de> <20070520184710.75db1335@kan.dnsalias.net> <20070520210704.H33354@volatile.chemikals.org> <20070521012910.GA46689@xor.obsecurity.org> <20070521013910.GA46734@xor.obsecurity.org> <20070520214222.L44264@volatile.chemikals.org> <86wsz2tqoa.fsf@dwp.des.no>
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Dag-Erling Smørgrav wrote: > Wes Morgan <morganw@chemikals.org> writes: >> I have to ask the stupidly obvious question of why isn't the compiler >> smart enough to realize (or forcefully taught) that our platform >> doesn't support this? > > Looking at it from the opposite perspective, how much work would it be > to teach ld-elf.so to support PIE? > > DES It looks like most of the interesting magic would be in the kernel, actually. KDE and Apache seem to be good candidates for benefiting from it, which makes it interesting for FreeBSD. I haven't been able to find any technical details other than a broad overview in the apache docs. Scott
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