Date: Mon, 14 Mar 2005 16:33:34 -0700 (MST) From: Warner Losh <imp@bsdimp.com> To: wollman@khavrinen.lcs.mit.edu Cc: freebsd-current@FreeBSD.ORG Subject: Re: COMPAT_43 ? Message-ID: <20050314.163334.39157663.imp@bsdimp.com> In-Reply-To: <200503142328.j2ENSQmv092439@khavrinen.lcs.mit.edu> References: <2617.172.16.0.199.1110748478.squirrel@wettoast.dyndns.org> <20050313.152624.59920781.imp@bsdimp.com> <200503142328.j2ENSQmv092439@khavrinen.lcs.mit.edu>
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From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> Subject: Re: COMPAT_43 ? Date: Mon, 14 Mar 2005 18:28:26 -0500 (EST) > <<On Sun, 13 Mar 2005 15:26:24 -0700 (MST), "M. Warner Losh" <imp@bsdimp.com> said: > > > (6) The old creat, mknod, lseek, stat, truncate, getdirentries > > interface are covered by this as well (again, so old > > binaries can work, and likely there's some emulation code > > that depends on it). > > In at least a significant number of these cases, the "old binaries" > would be 4.3 binaries on a VAX. Look at rev. 1.1 of syscalls.master > and notice how many of them were already marked COMPAT in 4.4-Lite. I > believe creat, wait, sigvec, sigblock, sigsetmask, and killpg were > also COMPAT_43 in Net/2. creat() has never been a syscall in the > entire life of FreeBSD, but we're still carrying around the code to > implement it for "compatibility" with old VAX binaries. Clearly this is to make sure that if we ever do a port to a VAX we can have the compat binaries :-) Warner
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