Date: Tue, 12 Mar 2002 12:07:59 -0500 From: Jake Burkholder <jake@locore.ca> To: Dag-Erling Smorgrav <des@ofug.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sbin/savecore savecore.c Message-ID: <20020312120759.O20687@locore.ca> In-Reply-To: <xzpn0xeuhix.fsf@flood.ping.uio.no>; from des@ofug.org on Tue, Mar 12, 2002 at 12:55:50PM %2B0100 References: <200203111123.g2BBNo651853@freefall.freebsd.org> <20020311175817.I20687@locore.ca> <xzpn0xeuhix.fsf@flood.ping.uio.no>
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Apparently, On Tue, Mar 12, 2002 at 12:55:50PM +0100, Dag-Erling Smorgrav said words to the effect of; > Jake Burkholder <jake@locore.ca> writes: > > This will build but its actually wrong. We can't make the same assumptions > > about the physical address of where the kernel is loaded as i386 does. > > Well, I was told it was correct :) This doesn't make any assumptions, > BTW - it looks for the kernbase symbol in the kernel and uses that. Yes, but why. It assumes that subtracting kernbase from a virtual address will give on offset into the core dump, ie a phsyical address. This doesn't work on sparc64. > Now if you're telling me that the kernel's own idea of kernbase is > wrong... It isn't. kernbase is the lowest kernel virtual address, it may not have anything to do with physical addresses. Jake To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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