Phantom OS

<h2 id="overview">Overview</h2>
<p>Phantom was founded by Dmitry Zavalishin [ru]<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> and is being developed mostly by Russian programmers. It is <a href="/facts/Free_and_open-source_software/1cHtjLCB">free and open-source software</a> (FOSS) released under a <a href="/facts/GNU_Lesser_General_Public_License/AXwkz9x3">GNU Lesser General Public License</a> (LGPL).
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<h2 id="basics">Basics</h2>
<p>Managed code – Memory protection on object level, rather than <a href="/facts/Process_(computing)/Vcq7EnUV">process</a> level; absence of <a href="/facts/Pointer_arithmetic/fPoNzy9b">pointer arithmetic</a> in managed code avoids many problems that exist and occur in unmanaged code.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a>
</p><p>Global address space – Inexpensive <a href="/facts/Inter-process_communication/cIQYyT6y">inter-process communication</a> (IPC). <a href="/facts/Single_address_space_operating_system/kDx1IyWw">Single (flat) address space</a> allows transfer of objects from one process (application) to another by transferring links to that object. Security is achieved by the absence of pointer arithmetic and the inability of an application to get linked to an object other than by calling a public method.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a>
</p><p>Persistence – Application code does not see OS restarts and can live forever—this does not use the concept of a file and any variable or data structure can be stored forever and at the same time be available directly through a pointer. Contrary to hibernation, which is done in other OSs, persistence lies in the very core principles of the Phantom OS core. The implementation creates snapshots continuously and transparently to the applications maintaining consistent internal state without pausing applications.<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a>
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<h2 id="compatibility">Compatibility</h2>
<p>Two ways to migrate code are offered:<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a>
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<ul><li>Converter from <a href="/facts/Java_virtual_machine/l9Nzrsun">Java virtual machine</a> (JVM) <a href="/facts/Bytecode/EPkMFR7M">bytecode</a>; is supposed to permit the import of bytecode from <a href="/facts/Java_(programming_language)/9ScgFyAL">Java</a> and other <a href="/facts/Programming_language/cWTYbgWa">programming languages</a> that target the JVM.</li>
<li>The <i>Portable Operating System Interface</i> (<a href="/facts/POSIX/mQkSt234">POSIX</a>) subsystem allows <a href="/facts/Porting/7s6tFs8B">porting</a> application code from Unix and <a href="/facts/Linux/9FvCKSTq">Linux</a>, although important features of Phantom OS such as persistence become unavailable.</li></ul>
<h2 id="status">Status</h2>
<p>As of October 2019<a href="https://en.wikipedia.org/w/index.php?title=Phantom_OS&action=edit">[update]</a>, the system exists as an alpha version for <a href="/facts/X86/Kypq5fgu">x86</a> <a href="/facts/IA-32/7yTv1aHH">IA-32</a> processors. Porting to <a href="/facts/ARM_architecture/SALsYA79">ARM architecture</a> is underway (currently being tested, not yet ready for use) and porting to <a href="/facts/MIPS_architecture/efV4KgK4">MIPS architecture</a> and <a href="/facts/X86-64/cyWvUFlP">x86-64</a> (AMD64) has begun. Kernel operation has been demonstrated at the biggest Russian IT-conferences RIT 2011, ADD 2010,<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> CC 2010,<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a> and 2009.
</p><p>A <a href="/facts/Genode/4qRKnnv6">Genode</a>-based fork has been in development since 2020.<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a>
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<h2 id="see-also">See also</h2>
<ul>
<li>Free and open-source software portal</li></ul>
<ul><li><a href="/facts/IBM_i/lsIRAUvn">IBM i</a></li>
<li><a href="/facts/EROS_(microkernel)/otH0PLPh">EROS (microkernel)</a></li>
<li><a href="/facts/Singularity_(operating_system)/dNs6oIBD">Singularity (operating system)</a></li></ul>

<h2 id="sources">Sources</h2>
<ul><li><a href="https://github.com/dzavalishin/phantomuserland">"Source codes of Phantom OS"</a>. Digital Zone. 2009. Retrieved 27 April 2011.</li>
<li><a href="https://phantomdox.readthedocs.io/en/latest/">"Phantom OS Internals book"</a>. 2019.</li>
<li><a href="https://www.openhub.net/p/phantomoperatingsystem">"Phantom OS on OpenHUB"</a>. 2019.</li></ul>
<h2 id="external-links">External links</h2>
<ul><li><a href="http://phantomos.org">Official website</a></li>
<li><a href="https://github.com/dzavalishin/phantomuserland">Phantomuserland</a> on <a href="/facts/GitHub/n1hNCsc3">GitHub</a></li>
<li><a href="https://github.com/S7rizh/phantomuserland">Genode port</a> on <a href="/facts/GitHub/n1hNCsc3">GitHub</a></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Dziuba, Ted (3 February 2009). "Russian rides Phantom to OS immortality". The Register. Retrieved 27 April 2011. The iPhone that never dies <a href="https://www.theregister.co.uk/2009/02/03/phantom_russian_os/" target="_blank">https://www.theregister.co.uk/2009/02/03/phantom_russian_os/</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Dziuba, Ted (3 February 2009). "Russian rides Phantom to OS immortality". The Register. Retrieved 27 April 2011. The iPhone that never dies <a href="https://www.theregister.co.uk/2009/02/03/phantom_russian_os/" target="_blank">https://www.theregister.co.uk/2009/02/03/phantom_russian_os/</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>"Прототип отечественной ОС Phantom на базе Genode будет готов до конца года". www.opennet.ru. 24 January 2022. Retrieved 9 November 2023. <a href="https://www.opennet.ru/opennews/art.shtml?num=56565" target="_blank">https://www.opennet.ru/opennews/art.shtml?num=56565</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
<li id="fn:4"><p>"Прототип отечественной ОС Phantom на базе Genode будет готов до конца года". www.opennet.ru. 24 January 2022. Retrieved 9 November 2023. <a href="https://www.opennet.ru/opennews/art.shtml?num=56565" target="_blank">https://www.opennet.ru/opennews/art.shtml?num=56565</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li>
<li id="fn:5"><p>Dziuba, Ted (3 February 2009). "Russian rides Phantom to OS immortality". The Register. Retrieved 27 April 2011. The iPhone that never dies <a href="https://www.theregister.co.uk/2009/02/03/phantom_russian_os/" target="_blank">https://www.theregister.co.uk/2009/02/03/phantom_russian_os/</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li>
<li id="fn:6"><p>"Прототип отечественной ОС Phantom на базе Genode будет готов до конца года". www.opennet.ru. 24 January 2022. Retrieved 9 November 2023. <a href="https://www.opennet.ru/opennews/art.shtml?num=56565" target="_blank">https://www.opennet.ru/opennews/art.shtml?num=56565</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li>
<li id="fn:7"><p>Dmitry Zavalishin reports on ADD 2010 Archived 2012-07-07 at archive.today <a href="http://addconf.ru/event.sdf/ru/add_2010/authors/114/160" target="_blank">http://addconf.ru/event.sdf/ru/add_2010/authors/114/160</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li>
<li id="fn:8"><p>Dmitry Zavalishin reports on Chaos Constructions’2010 (Saint-Petersburg, Russia) Archived 2012-03-23 at the Wayback Machine <a href="http://video.yandex.ua/users/chaos-constructions/view/1/" target="_blank">http://video.yandex.ua/users/chaos-constructions/view/1/</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li>
<li id="fn:9"><p>"Прототип отечественной ОС Phantom на базе Genode будет готов до конца года". www.opennet.ru. 24 January 2022. Retrieved 9 November 2023. <a href="https://www.opennet.ru/opennews/art.shtml?num=56565" target="_blank">https://www.opennet.ru/opennews/art.shtml?num=56565</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li>
</ol>

Phantom OS open-in-new

Phantom OS