Date: Thu, 14 Feb 2002 22:52:27 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: "Jason Mawdsley" <jason@macadamian.com> Cc: <freebsd-hackers@FreeBSD.ORG> Subject: Re: mmap and PROT_WRITE Message-ID: <15468.34299.585269.88389@grasshopper.cs.duke.edu> In-Reply-To: <05e201c1b5cb$73a00520$2a64a8c0@macadamian.com> References: <05e201c1b5cb$73a00520$2a64a8c0@macadamian.com>
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Jason Mawdsley writes: > Why can't I write to memory in the first case? > > Is there anyway I can implement writable but no readable memory? > > I read some where that there is no true write only memory do to the > limitations of x86. I think you must have read correctly -- your sample code runs fine (both cases) on FreeBSD/alpha. The same test program dumps core on FreeBSD/i386 Cheers, Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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