From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: Date: Thu, 8 Jan 2009 09:27:56 -0800 From: "Russ Cox" To: "Fans of the OS Plan 9 from Bell Labs" <9fans@9fans.net> Subject: Re: [9fans] two quick questions on syscalls In-Reply-To: <1231434224.5141.229.camel@goose.sun.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1231434224.5141.229.camel@goose.sun.com> Topicbox-Message-UUID: 7d0b7778-ead4-11e9-9d60-3106f5b1d025 On Thu, Jan 8, 2009 at 9:03 AM, Roman V. Shaposhnik wrote: > 1. are the ones starting from underscore totally deprecated? No. Many are still minimally supported, so that it is possible to run simple pre-9P2000 binaries (for example, out of the dump). > 2. what's the use for sysr1? Sysr1 is whatever you want it to be. During kernel hacking, it's often useful to be define it to do some kind of debugging action, like toggle extra checking or output. It has no assigned purpose. Russ