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Path: ...!weretis.net!feeder6.news.weretis.net!feeder8.news.weretis.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Lawrence D'Oliveiro <ldo@nz.invalid> Newsgroups: comp.arch Subject: Re: Capabilities, Anybody? Date: Sat, 9 Mar 2024 02:25:48 -0000 (UTC) Organization: A noiseless patient Spider Lines: 9 Message-ID: <usghbb$20pi9$2@dont-email.me> References: <usg40i$1udfo$3@dont-email.me> <usggo4$20nei$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Sat, 9 Mar 2024 02:25:48 -0000 (UTC) Injection-Info: dont-email.me; posting-host="bff41ac211755297b11f88374274852e"; logging-data="2123337"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+rvXib0ObTVgYY1Nh5IOk8" User-Agent: Pan/0.155 (Kherson; fc5a80b8) Cancel-Lock: sha1:f5oXpx7s08X6VvBz0VZYXfHs3RM= Bytes: 1391 On Fri, 8 Mar 2024 21:15:29 -0500, Robert Finch wrote: > I gather that capabilities are generally fine-grained, and capability > pointers would be generated and handed out by the OS. What happens when > a pointer is incremented? Each capability is a descriptor, describing a range of memory, not (necessarily) just one address. So it is valid to use that to address any area within the range.