Date: Sat, 30 Aug 2003 13:45:49 -0700 From: Tim Kientzle <kientzle@acm.org> To: "Pedro F. Giffuni" <giffunip@yahoo.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Non-executable mappings now in NetBSD too Message-ID: <3F510CFD.1070400@acm.org> In-Reply-To: <20030830203415.54268.qmail@web13402.mail.yahoo.com> References: <20030830203415.54268.qmail@web13402.mail.yahoo.com>
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Pedro F. Giffuni wrote: > Just for reference, I found links to these interesting postings on NetBSD and > OpenBSD respectively: > > http://mail-index.netbsd.org/tech-kern/2003/08/24/0009.html > > http://www.sigmasoft.com/~openbsd/archive/openbsd-tech/200301/msg00251.html > > Last time I asked, I learned our signal trampoline had been impleneted on > userland like on NetBSD's IRIX emulation (not sure about all platforms though), > so work on this would be really good. The OpenBSD work on tightening up read/write/exec memory permissions looks interesting, but I wonder what impact it has on JIT technologies; do the current Java VMs or other incremental compilation engines require write+exec? Tim
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