{"id":53000,"date":"2019-11-21T00:00:00","date_gmt":"2019-11-20T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/google-rabotaet-nad-ispolzovaniem-obychnogo-yadra-linux-v-android"},"modified":"2020-02-18T14:00:50","modified_gmt":"2020-02-18T11:00:50","slug":"google-rabotaet-nad-ispolzovaniem-obychnogo-yadra-linux-v-android","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/google-rabotaet-nad-ispolzovaniem-obychnogo-yadra-linux-v-android","title":{"rendered":"Google radi na kori\u0161tenju obi\u010dnog Linux jezgra u Androidu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Na pro\u0161loj konferenciji Linux Plumbers 2019, tvrtka Google <noindex><a rel=\"nofollow\" href=\"https:\/\/arstechnica.com\/gadgets\/2019\/11\/google-outlines-plans-for-mainline-linux-kernel-support-in-android\/\">izvijestila je<\/a><\/noindex>  o razvoju <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=49648\">inicijative<\/a><\/noindex> prijenosa promjena u glavno Linux jezgro, koje se razvijaju u <noindex><a rel=\"nofollow\" href=\"https:\/\/android.googlesource.com\/kernel\/common\/+refs\">varijanti jezgra<\/a><\/noindex> za Android platformu. Krajnji cilj je omogu\u0107iti kori\u0161tenje jednog zajedni\u010dkog jezgra u Androidu, umjesto pripreme posebnih izdanja za svaku ure\u0111aj na temelju specifi\u010dne Android grane. <noindex><a rel=\"nofollow\" href=\"https:\/\/source.android.com\/devices\/architecture\/kernel\/android-common\">Android Common Kernel<\/a><\/noindex>. Ovaj cilj je ve\u0107 djelomi\u010dno postignut, a na konferenciji je demonstriran Android pametni telefon Xiaomi Poco F1 s firmware-om temeljenim na obi\u010dnom, nemodificiranom Linux jezgru.<\/p>\n<p>Nakon zavr\u0161etka projekta, dobavlja\u010dima \u0107e biti ponu\u0111eno da opskrbljuju osnovno jezgro na temelju glavnog Linux jezgra. Komponente za podr\u0161ku hardveru bit \u0107e isporu\u010dene od strane dobavlja\u010da samo u obliku dodatnih modula jezgra, bez dodavanja patch-a u jezgro. Moduli \u0107e obavezno osigurati kompatibilnost s glavnim jezgrom na razini prostora imenskih simbola jezgra. Sve promjene koje se ti\u010du glavnog jezgra bit \u0107e promovirane u upstream. Kako bi se o\u010duvala kompatibilnost s vlasni\u010dkim modulima u okviru LTS grana, predla\u017ee se odr\u017eavanje stabilnog API i ABI jezgra, \u0161to \u0107e omogu\u0107iti o\u010duvanje kompatibilnosti modula s a\u017euriranjima za svaku zajedni\u010dku granu jezgra.<\/p>\n<p><center><img decoding=\"async\" alt=\"Google radi na kori\u0161tenju obi\u010dnog Linux jezgra u Androidu\" src=\"\/wp-content\/uploads\/2019\/11\/18f8a41befddc7d81c07b9c6d1bf44c2.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/center><\/p>\n<p>Tijekom godine, u glavno Linux jezgro su prenesene mogu\u0107nosti iz jezgre za Android, kao \u0161to su PSI podsustav (Pressure Stall Information) za analizu informacija o vremenu \u010dekanja za razli\u010dite resurse (CPU, memorija, ulaz\/izlaz), pseudo-datote\u010dni sustav BinderFS za mehanizam me\u0111uprocesne komunikacije Binder i energetski u\u010dinkoviti planer zadataka EAS (Energy Aware Scheduling). U budu\u0107nosti, planira se prijenos Androida s specifi\u010dnog planera SchedTune na novu podsustav UtilClamp razvijenu u ARM-u, koja se temelji na cgroups2 i standardnim mehanizmima jezgra.<\/p>\n<p><center><img decoding=\"async\" alt=\"Google radi na kori\u0161tenju obi\u010dnog Linux jezgra u Androidu\" src=\"\/wp-content\/uploads\/2019\/11\/2db4ca76f6a87b2ad28a7510a4deb79c.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/center><\/p>\n<p>Podsjetimo, da je do sada jezgro za Android platformu prolazilo kroz nekoliko faza pripreme:<\/p>\n<ul>\n<li class=\"l\"> Na temelju osnovnih LTS jezgri (3.18, 4.4, 4.9 i 4.14) stvorena je grana \u00abAndroid Common Kernel\u00bb, u koju su se prenosili specifi\u010dni Android zakrpe (ranije je veli\u010dina promjena dosezala nekoliko milijuna redaka, ali u posljednje vrijeme promjene su smanjene na nekoliko tisu\u0107a redaka koda).\n<li class=\"l\"> Na temelju \u00abAndroid Common Kernel\u00bb proizvo\u0111a\u010di \u010dipova, kao \u0161to je Qualcomm, oblikovali su \u00abSoC Kernel\u00bb, koji uklju\u010duje dodatke za podr\u0161ku hardveru.\n<li class=\"l\"> Na temelju \u00abSoC Kernel\u00bb proizvo\u0111a\u010di ure\u0111aja stvorili su \u00abDevice Kernel\u00bb, koji uklju\u010duje promjene povezane s podr\u0161kom dodatnom hardveru, ekranima, kamerama, zvu\u010dnim sustavima itd.\n<\/ul>\n<p><center><img decoding=\"async\" alt=\"Google radi na kori\u0161tenju obi\u010dnog Linux jezgra u Androidu\" src=\"\/wp-content\/uploads\/2019\/11\/3a7d495f71eaef927e79912ca62776d8.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/center><\/p>\n<p>U su\u0161tini, za svaki ure\u0111aj se formira vlastita jezgra koja se ne mo\u017ee koristiti na drugim ure\u0111ajima. Ovakva shema zna\u010dajno ote\u017eava a\u017euriranje za rje\u0161avanje ranjivosti i prelazak na nove verzije jezgre. Na primjer, najnoviji pametni telefon Pixel 4 koji je izdan u listopadu dolazi s Linux jezgrom 4.14, koja je objavljena prije dvije godine. Djelomi\u010dno, Google je poku\u0161ao pojednostaviti odr\u017eavanje promocijom sustava <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=48588\">Treble<\/a><\/noindex>, koji omogu\u0107uje proizvo\u0111a\u010dima da kreiraju univerzalne komponente podr\u0161ke hardveru, neovisne o konkretnim verzijama Androida i kori\u0161tenim izdanjima Linux jezgre. Treble omogu\u0107uje kori\u0161tenje postoje\u0107ih a\u017euriranja od Googlea kao osnove, integriraju\u0107i u njih komponente specifi\u010dne za odre\u0111eni ure\u0111aj. <\/p>\n<p><center><br \/>\n<div class=\"youtube-placeholder\" data-id=\"f2C-gA8jEyY\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/f2C-gA8jEyY\/hqdefault.jpg\" alt=\"Pogledajte video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Izvor: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51905\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0430 \u043f\u0440\u043e\u0448\u0435\u0434\u0448\u0435\u0439 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 Linux Plumbers 2019 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b\u0430 \u043e \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0438 \u0438\u043d\u0438\u0446\u0438\u0430\u0442\u0438\u0432\u044b \u043f\u043e \u043f\u0435\u0440\u0435\u043d\u043e\u0441\u0443 \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0435 \u044f\u0434\u0440\u043e Linux \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0432 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0435 \u044f\u0434\u0440\u0430 \u0434\u043b\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Android. \u041a\u043e\u043d\u0435\u0447\u043d\u043e\u0439 \u0446\u0435\u043b\u044c\u044e \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0432 Android \u043e\u0434\u043d\u043e\u0433\u043e \u043e\u0431\u0449\u0435\u0433\u043e \u044f\u0434\u0440\u0430, \u0432\u043c\u0435\u0441\u0442\u043e \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043a\u0438 \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0441\u0431\u043e\u0440\u043e\u043a \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u043e\u0439 \u0434\u043b\u044f Android \u0432\u0435\u0442\u043a\u0438 Android Common Kernel. \u0414\u0430\u043d\u043d\u0430\u044f \u0446\u0435\u043b\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-53000","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041d\u0430 \u043f\u0440\u043e\u0448\u0435\u0434\u0448\u0435\u0439 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 Linux Plumbers 2019 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/hr\/blog\/news\/google-rabotaet-nad-ispolzovaniem-obychnogo-yadra-linux-v-android\" \/>\n\t\t<meta 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