{"id":101401,"date":"2021-09-26T10:22:38","date_gmt":"2021-09-26T08:22:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-perejdyot-k-razvitiyu-novshestv-dlya-android-v-osnovnom-yadre-linux"},"modified":"2021-09-26T10:22:38","modified_gmt":"2021-09-26T08:22:39","slug":"google-perejdyot-k-razvitiyu-novshestv-dlya-android-v-osnovnom-yadre-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/google-perejdyot-k-razvitiyu-novshestv-dlya-android-v-osnovnom-yadre-linux","title":{"rendered":"Google se centrar\u00e1 en el desarrollo de innovaciones para Android en el n\u00facleo principal de Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>En la conferencia Linux Plumbers 2021, Google present\u00f3 los avances de la iniciativa para trasladar la plataforma Android hacia el uso del n\u00facleo Linux est\u00e1ndar en lugar de su propia versi\u00f3n del n\u00facleo, que incluye modificaciones espec\u00edficas para la plataforma Android.     <\/p>\n<p>El cambio m\u00e1s importante en el desarrollo ha sido la decisi\u00f3n de adoptar, a partir de 2023, el modelo &#171;Upstream First&#187;, que implica el desarrollo de todas las nuevas funcionalidades del n\u00facleo necesarias en la plataforma Android directamente en el n\u00facleo Linux principal y no en sus ramas separadas (la funcionalidad se promover\u00e1 primero en el n\u00facleo principal y luego se utilizar\u00e1 en Android, y no al rev\u00e9s). Para 2023 y 2024, tambi\u00e9n est\u00e1 previsto transferir al n\u00facleo principal todos los parches adicionales que quedan en la rama Android Common Kernel.    <\/p>\n<p>En cuanto a lo que se espera en el futuro cercano, para la plataforma Android 12, que se anticipa para principios de octubre, se ofrecer\u00e1n compilaciones del n\u00facleo &#171;Generic Kernel Image&#187; (GKI), lo m\u00e1s cercanas posible al n\u00facleo habitual 5.10. Para estas compilaciones se proporcionar\u00e1 un lanzamiento regular de actualizaciones, que se publicar\u00e1n en el repositorio ci.android.com. En el n\u00facleo GKI, los complementos espec\u00edficos de la plataforma Android, as\u00ed como los controladores relacionados con el soporte de hardware de los fabricantes OEM, se han trasladado a m\u00f3dulos separados del n\u00facleo. Estos m\u00f3dulos no est\u00e1n vinculados a la versi\u00f3n del n\u00facleo principal y pueden evolucionar de forma independiente, lo que facilita significativamente el mantenimiento y la migraci\u00f3n de dispositivos a nuevas ramas del n\u00facleo.          <center><img decoding=\"async\" alt=\"Google se centrar\u00e1 en el desarrollo de innovaciones para Android en el n\u00facleo principal de Linux\" src=\"\/wp-content\/uploads\/2021\/09\/e70c086b38346593ea95e1b44ff0f3eb.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Las interfaces necesarias para los fabricantes de dispositivos se implementan en forma de ganchos que permiten modificar el comportamiento del n\u00facleo sin alterar el c\u00f3digo. En total, el n\u00facleo android12-5.10 ofrece 194 ganchos est\u00e1ndar, similares a los puntos de trazado (tracepoints), y 107 ganchos especializados, que permiten ejecutar controladores en un contexto no at\u00f3mico. En el n\u00facleo GKI, se proh\u00edbe a los fabricantes de hardware aplicar parches espec\u00edficos al n\u00facleo principal, y los componentes para el soporte de hardware deben ser proporcionados por los proveedores \u00fanicamente en forma de m\u00f3dulos adicionales del n\u00facleo, los cuales deben ser compatibles con el n\u00facleo principal.       <\/p>\n<p>Recordemos que en la plataforma Android se desarrolla una rama propia del n\u00facleo &#8212; Android Common Kernel, sobre la cual se crean compilaciones espec\u00edficas para cada dispositivo. En cada rama de Android, se ofrecen varias opciones de configuraci\u00f3n de n\u00facleos para sus dispositivos. Por ejemplo, en Android 11 se ofrecieron tres n\u00facleos b\u00e1sicos &#8212; 4.14, 4.19 y 5.4, y para Android 12 se propondr\u00e1n los n\u00facleos b\u00e1sicos 4.19, 5.4 y 5.10. La opci\u00f3n 5.10 se presenta como Generic Kernel Image, en la cual las capacidades necesarias para los fabricantes OEM se han transferido al upstream, traslad\u00e1ndose a m\u00f3dulos o incorpor\u00e1ndose en el Android Common Kernel.       <\/p>\n<p>Antes de la llegada del GKI, el n\u00facleo de Android pasaba por varias etapas de preparaci\u00f3n:    <\/p>\n<ul>\n<li class=\"l\"> Sobre la base de los n\u00facleos LTS principales (3.18, 4.4, 4.9, 4.14, 4.19, 5.4) se cre\u00f3 la bifurcaci\u00f3n &#171;Android Common Kernel&#187;, en la que se trasladaron parches espec\u00edficos de Android (anteriormente, el tama\u00f1o de los cambios alcanzaba varios millones de l\u00edneas).\n<li class=\"l\">  Bas\u00e1ndose en el &#171;Android Common Kernel&#187;, fabricantes de chips como Qualcomm, Samsung y MediaTek formaron el &#171;SoC Kernel&#187;, que incluye complementos para el soporte de hardware.\n<li class=\"l\">  Sobre la base de 'SoC Kernel', los fabricantes de dispositivos crearon el 'Device Kernel', que incluye cambios relacionados con el soporte de hardware adicional, pantallas, c\u00e1maras, sistemas de sonido, etc.   <\/ul>\n<p>Este enfoque complicaba significativamente la entrega de actualizaciones que solucionan vulnerabilidades y la transici\u00f3n a nuevas ramas del n\u00facleo. A pesar de que Google libera regularmente actualizaciones de sus n\u00facleos de Android (Android Common Kernel), los proveedores a menudo no se apresuran a ofrecer estas actualizaciones o incluso utilizan un \u00fanico n\u00facleo durante todo el ciclo de vida del dispositivo.        <center>  <div class=\"youtube-placeholder\" data-id=\"O_lCFGinFPM\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/O_lCFGinFPM\/hqdefault.jpg\" alt=\"Reproducir video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55869\">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 2021 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b\u0430 \u043e\u0431 \u0443\u0441\u043f\u0435\u0445\u0430\u0445 \u0438\u043d\u0438\u0446\u0438\u0430\u0442\u0438\u0432\u044b \u043f\u043e \u043f\u0435\u0440\u0435\u0432\u043e\u0434\u0443 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Android \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043e\u0431\u044b\u0447\u043d\u043e\u0433\u043e \u044f\u0434\u0440\u0430 Linux \u0432\u043c\u0435\u0441\u0442\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0430 \u044f\u0434\u0440\u0430, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f, \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u044b\u0435 \u0434\u043b\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Android. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0432\u0430\u0436\u043d\u044b\u043c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435\u043c \u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0441\u0442\u0430\u043b\u043e \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u043f\u043e \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0443 \u043f\u043e\u0441\u043b\u0435 2023 \u0433\u043e\u0434\u0430 \u043d\u0430 \u043c\u043e\u0434\u0435\u043b\u044c &#171;Upstream First&#187;, \u043f\u043e\u0434\u0440\u0430\u0437\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0443\u044e \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0432\u0441\u0435\u0445 \u043d\u043e\u0432\u044b\u0445 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 \u044f\u0434\u0440\u0430, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u0445 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":101402,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101401","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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 2021 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b\u0430 \u043e\u0431 \u0443\u0441\u043f\u0435\u0445\u0430\u0445 \u0438\u043d\u0438\u0446\u0438\u0430\u0442\u0438\u0432\u044b \u043f\u043e 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