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RISC OS 5 GPL breach accusations By Chris Williams. Published: 7th Feb 2003, 23:47:16.Linux kernel PCI and I/O code used, ARM Linux developer claims [Updated 8 Feb 2003] It's not just RISC OS that runs on ARM powered hardware, there's also the port of Linux funnily enough called ARM Linux. Linux, if you haven't heard of this beast, is a free open source UNIX operating system clone developed solely by enthusiasts across the world. Don't panic! This isn't a rant on linux advocacy, we wouldn't do that to you.Anyone can get the source to it and do whatever they like to it, provided you follow the GPL - the licence the Linux operating system is distributed under. The GPL is fairly complex but simply put, it ensures that software remains free (as in freedom, not necessarily the price). If you modify GPLed software or use GPL sources in other software and then release said software, these changes fall under the GPL too and thereby becomes free. RISC OS on the other hand is very different with respect to the GPL as it's completely closed source and the source code is closely guarded. Now, to hear of allegations that RISC OS 5 (the 32 bit variant of RISC OS that Castle deploy in their XScale powered Iyonix machines), contains GPLed code is somewhat bewildering. What are the implications of embedding GPLed Linux kernel code in a proprietry system such as RISC OS? It looks like we're about to find out. Russell King, developer of ARM Linux, has today disclosed his belief that RISC OS 5 features GPLed Linux kernel code. Oh my. After one or two postings to the ARM Linux mailing list, Russell has decided to go public. "It would appear that Castle Technology Limited, UK, have taken some of the Linux kernel 2.5 code", Russell claimed on the Linux Kernel mailing list, "and incorporated it into their own product, 'RISC OS', which is distributed in binary ROM form built into machines they sell. This code is linked with other proprietary code." This is pretty illuminating stuff (if it turns out to be proven true mind you, Castle have yet to issue any kind of statement), especially now that Slashdot have thrown the story onto their front page. How many hundreds of thousands of readers do they get? Oh, oh my. For what it's worth, the Linux code Russell claims Castle are using is the source code to the PCI subsystem and I/O resource allocation code. Naturally, we'll assess the fall out shortly once we're in a position to comment more fully. Thanks to the couple of readers who kindly tipped us off. Update Justin Fletcher has informed us that his evidence and further technical material on the Linux PCI code allegedly appearing in RISC OS 5 is now available from his website. The archive steps through his detective work and includes code examples. Links Russell publically makes his claim Slashdot hits out RISC OS 5 Discussion Viewing threaded comments | View comments unthreaded, listed by date | Skip to the end
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Featured articles The weekend's RISC OS event has been and gone and we've got the rest of our lives to look forward to. Here's a round-up of extra news and Drobe's show-related coverage and some photos taken from Wakefield 2009 - plus a video from the show floor. 16 comments, latest by AW on 29/4/09 7:41PM. Published: 27 Apr 2009Picture exclusive - This grainy photograph shows a port of RISC OS 5, sourced from the RISC OS Open project, running on a Beagleboard - a device powered by a 600MHz ARM Cortex-A8 processor with a built-in graphics chip. The port, developed by Jeffrey Lee with help from Uwe Kall and ROOL staff, is seen as a major breakthrough for the shared-source project as it proves the OS can be ported to new hardware without the need for a large team of engineers. 75 comments, latest by rjek on 30/4/09 3:15PM. Published: 25 Apr 2009It can be a pain when someone sends you a file that can only be opened on Windows, Mac OS X or Linux - but with the help of a free-to-use website and NetSurf, Paul Stewart reveals how these documents can be viewed on RISC OS. 6 comments, latest by AW on 8/5/09 12:12AM. Published: 19 Apr 2009Useful links News and media:Iconbar • MyRISCOS • ArcSite • RISCOScode • ANS • C.S.A.Announce • Archive • Qercus • RiscWorld • GAG-News Top developers: RISCOS Ltd • RISC OS Open • MW Software • R-Comp • Advantage Six • VirtualAcorn Dealers: CJE Micros • APDL • Castle • a4 • X-Ample • Liquid Silicon • Webmonster Usergroups: WROCC • RONE • NKACC • IRUG • SASAUG • ROUGOL • RONWUG • MUG • GAG • RISCOS.be Useful: RISCOS.org • RISCOS.info • Filebase • NetSurf Non-RISC OS: The Register • The Inquirer • Apple Insider • BBC News • Sky News • Google News • xkcd • diodesign |
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