{"id":99807,"date":"2021-04-15T10:22:39","date_gmt":"2021-04-15T08:22:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/podderzhka-rust-dlya-yadra-linux-stolknulas-s-kritikoj-torvaldsa"},"modified":"2021-04-15T10:22:39","modified_gmt":"2021-04-15T08:22:39","slug":"podderzhka-rust-dlya-yadra-linux-stolknulas-s-kritikoj-torvaldsa","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/podderzhka-rust-dlya-yadra-linux-stolknulas-s-kritikoj-torvaldsa","title":{"rendered":"Il supporto per Rust nel kernel Linux ha affrontato critiche da parte di Torvalds","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Linus Torvalds ha revisionato le patch per l'implementazione della possibilit\u00e0 di creare driver in Rust per il kernel Linux, sollevando alcune critiche.    <\/p>\n<p>Le principali preoccupazioni riguardano la possibilit\u00e0 di andare in panic() in situazioni di errore, ad esempio in caso di esaurimento della memoria, quando le operazioni di allocazione dinamica della memoria, anche all'interno del kernel, possono fallire. Torvalds ha affermato che un simile approccio \u00e8 inaccettabile nel kernel e, se non si comprende questo punto, potrebbe rifiutare completamente (totally NAKed) qualsiasi codice che tenti di utilizzare tale approccio. D'altra parte, lo sviluppatore delle patch ha riconosciuto questo problema e lo considera risolvibile.    <\/p>\n<p>Un altro problema \u00e8 stato rappresentato dai tentativi di utilizzo di calcoli in virgola mobile o di tipi a 128 bit, che non sono consentiti in ambienti come il kernel Linux. Questo si \u00e8 rivelato un problema pi\u00f9 serio, poich\u00e9 al momento la libreria di base (core) di Rust \u00e8 indivisibile e rappresenta un grande blob \u2014 non c'\u00e8 possibilit\u00e0 di richiedere solo alcune delle funzionalit\u00e0, impedendo l'uso di alcune funzionalit\u00e0 problematiche. La soluzione del problema potrebbe richiedere modifiche al compilatore Rust e alla libreria, mentre attualmente il team non ha ancora una strategia su come implementare la modularit\u00e0 delle librerie del linguaggio.    <\/p>\n<p>Inoltre, Torvalds ha osservato che l'esempio di driver fornito \u00e8 inutile e ha consigliato di allegare come esempio un driver che risolva uno dei problemi reali.        <\/p>\n<p>Aggiornamento: Google ha annunciato la propria partecipazione all'iniziativa per promuovere il supporto di Rust nel kernel Linux, evidenziando aspetti tecnici della opportunit\u00e0 di implementare Rust per affrontare i problemi derivanti da errori nella gestione della memoria. Google ritiene che Rust sia gi\u00e0 pronto a unirsi al C come linguaggio per lo sviluppo dei componenti del kernel Linux. L'articolo include anche esempi di utilizzo del linguaggio Rust per lo sviluppo di driver del kernel, nel contesto del loro utilizzo nella piattaforma Android (Rust \u00e8 stato ufficialmente riconosciuto come linguaggio supportato per lo sviluppo su Android).     <\/p>\n<p>Si segnala che Google ha sviluppato un prototipo iniziale di un driver scritto in Rust per il meccanismo di interprocess communication Binder, che consentir\u00e0 un confronto dettagliato delle prestazioni e della sicurezza delle implementazioni di Binder in C e Rust. Attualmente, il lavoro non \u00e8 ancora completo, ma sono gi\u00e0 state preparate le interfacce per utilizzare queste astrazioni nel codice Rust per quasi tutte le astratte funzionalit\u00e0 di base del kernel necessarie per l'operativit\u00e0 di Binder.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54970\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u043f\u0440\u043e\u0432\u0451\u043b \u0440\u0435\u0446\u0435\u043d\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0430\u0442\u0447\u0435\u0439 c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432 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[&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-99807","post","type-post","status-publish","format-standard","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=\"\u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u043f\u0440\u043e\u0432\u0451\u043b \u0440\u0435\u0446\u0435\u043d\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0430\u0442\u0447\u0435\u0439 c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432 \u043d\u0430 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