From owner-freebsd-hackers Fri Feb 2 2:29:53 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from ringworld.nanolink.com (ringworld.nanolink.com [195.24.48.189]) by hub.freebsd.org (Postfix) with SMTP id 1757337B491 for ; Fri, 2 Feb 2001 02:29:33 -0800 (PST) Received: (qmail 7611 invoked by uid 1000); 2 Feb 2001 10:27:55 -0000 Date: Fri, 2 Feb 2001 12:27:54 +0200 From: Peter Pentchev To: John Baldwin Cc: Doug White , freebsd-hackers@FreeBSD.org, Drew Eckhardt , Matt Dillon Subject: Re: Suboptimal mmap of devices on i86 Message-ID: <20010202122754.F328@ringworld.oblivion.bg> Mail-Followup-To: John Baldwin , Doug White , freebsd-hackers@FreeBSD.org, Drew Eckhardt , Matt Dillon References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from jhb@FreeBSD.org on Thu, Feb 01, 2001 at 01:19:24PM -0800 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, Feb 01, 2001 at 01:19:24PM -0800, John Baldwin wrote: > > On 01-Feb-01 Doug White wrote: > > On Mon, 29 Jan 2001, John Baldwin wrote: > > > >> Then only rename it in 4.x We can do an API change for 5.0. We'll be > >> renaming syscall2() back to syscall() in 5.0 for example. We don't > >> want to end up with syscall47() someday in FreeBSD 67.2. :-P > > > > And what happens to apps using the previous syscall(2) interface? They > > die horribly? That's not acceptable. > > Huh? syscall2() is an internal kernel function. The only thing that might > call it is a kernel module, and we won't support 4.x KLD's on 5.0. Period. > It was renamed to syscall2() to cause old KLD's to fail to load with a symbol > lookup problem back when teh MPSAFE flag was first added to x86 syscalls. The > only thing that changing it back to syscall() in -current does is cause any 6 > month old 5.0-current KLD's that happen to call syscall() to call it wrong. Uhm.. I believe he meant syscall(2) as in 'the "syscall" entity described in section 2 of the manual', which in this case happens to be: NAME syscall, __syscall - indirect system call ..as used in src/lib/libc/sys/*.c. G'luck, Peter -- If this sentence were in Chinese, it would say something else. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message