Date: Wed, 10 Nov 2004 22:56:43 -0500 From: David Schultz <das@FreeBSD.ORG> To: Bruce M Simpson <bms@spc.org> Cc: arch@FreeBSD.ORG Subject: Re: U Area Removal Message-ID: <20041111035643.GA14702@VARK.MIT.EDU> In-Reply-To: <20041111033238.GA723@empiric.icir.org> References: <20041111030035.GA70923@VARK.MIT.EDU> <20041111033238.GA723@empiric.icir.org>
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On Wed, Nov 10, 2004, Bruce M Simpson wrote: > Hey there, > > On Wed, Nov 10, 2004 at 10:00:35PM -0500, David Schultz wrote: > > Over the years, the amount of data we have stored in each process' U > > area has eroded to the point where all we have left are the following: > > > > - A struct kinfo_proc that is only used for a.out core dumps. > > This can be reconstructed at the time of the core dump, so > > it doesn't need to be there. > > Aren't we 100% ELF these days? Surely aout is no longer relevant? Complete removal of a.out support is a separate topic. The aout.ko module works right now, and I've tried not to break it. Granted, I have yet to test whether a.out core dumps actually still work, but I intend to do so. > I've briefly looked over this and am happy to see it simplifies MD code > somewhat. FWIW, this is just phase one. There's even more that can be axed on another pass, such as most uses of PHOLD().help
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