{"id":102986,"date":"2022-01-17T15:36:46","date_gmt":"2022-01-17T13:36:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/%d1%87%d0%b5%d1%82%d0%b2%d1%91%d1%80%d1%82%d0%b0%d1%8f-%d1%80%d0%b5%d0%b4%d0%b0%d0%ba%d1%86%d0%b8%d1%8f-%d0%bf%d0%b0%d1%82%d1%87%d0%b5%d0%b9-%d0%b4%d0%bb%d1%8f-%d1%8f%d0%b4%d1%80%d0%b0-linux-%d1%81"},"modified":"2022-01-17T15:36:46","modified_gmt":"2022-01-17T13:36:46","slug":"%d1%87%d0%b5%d1%82%d0%b2%d1%91%d1%80%d1%82%d0%b0%d1%8f-%d1%80%d0%b5%d0%b4%d0%b0%d0%ba%d1%86%d0%b8%d1%8f-%d0%bf%d0%b0%d1%82%d1%87%d0%b5%d0%b9-%d0%b4%d0%bb%d1%8f-%d1%8f%d0%b4%d1%80%d0%b0-linux-%d1%81","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/%d1%87%d0%b5%d1%82%d0%b2%d1%91%d1%80%d1%82%d0%b0%d1%8f-%d1%80%d0%b5%d0%b4%d0%b0%d0%ba%d1%86%d0%b8%d1%8f-%d0%bf%d0%b0%d1%82%d1%87%d0%b5%d0%b9-%d0%b4%d0%bb%d1%8f-%d1%8f%d0%b4%d1%80%d0%b0-linux-%d1%81","title":{"rendered":"\u0160tvrt\u00e9 vydanie patchov pre jadro Linux s podporou jazyka Rust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Miguel Ojeda, autor projektu Rust-for-Linux, navrhol pre v\u00fdvoj\u00e1rov jadra Linux \u0161tvrt\u00fa verziu komponentov na v\u00fdvoj ovl\u00e1da\u010dov zariaden\u00ed v jazyku Rust. Podpora Rustu je pova\u017eovan\u00e1 za experiment\u00e1lnu, ale u\u017e bola schv\u00e1len\u00e1 na zahrnutie do vetvy linux-next a je dostato\u010dne vyvinut\u00e1 na za\u010datie pr\u00e1ce na vytv\u00e1ran\u00ed abstraktn\u00fdch vrstiev nad subsyst\u00e9mami jadra, ako aj na p\u00edsanie ovl\u00e1da\u010dov a modulov. V\u00fdvoj je financovan\u00fd spolo\u010dnos\u0165ou Google a organiz\u00e1ciou ISRG (Internet Security Research Group), ktor\u00e1 je zakladate\u013eom projektu Let's Encrypt a prispieva k propag\u00e1cii HTTPS a rozvoju technol\u00f3gi\u00ed na zv\u00fd\u0161enie bezpe\u010dnosti internetu. <\/p>\n

Pripome\u0148me, \u017ee navrhovan\u00e9 zmeny umo\u017e\u0148uj\u00fa pou\u017e\u00edva\u0165 Rust ako druh\u00fd jazyk na v\u00fdvoj ovl\u00e1da\u010dov a modulov jadra. Podpora Rust sa prezentuje ako mo\u017enos\u0165, ktor\u00e1 nie je predvolene akt\u00edvna a nevedie k zaradeniu Rustu medzi povinn\u00e9 zostavovacie z\u00e1vislosti jadra. Pou\u017eitie Rustu na v\u00fdvoj ovl\u00e1da\u010dov umo\u017en\u00ed s minim\u00e1lnym \u00fasil\u00edm vytv\u00e1ra\u0165 bezpe\u010dn\u00e9 a kvalitnej\u0161ie ovl\u00e1da\u010de, zbaven\u00e9 tak\u00fdch probl\u00e9mov ako je pr\u00edstup do pam\u00e4te po jej uvo\u013enen\u00ed, dereferencovanie nulov\u00fdch ukazovate\u013eov a prete\u010denie vyrovn\u00e1vacej pam\u00e4te. <\/p>\n

Bezpe\u010dn\u00e1 pr\u00e1ca s pam\u00e4\u0165ou je v Rust zabezpe\u010den\u00e1 po\u010das kompil\u00e1cie prostredn\u00edctvom overovania referenci\u00ed, sledovania vlastn\u00edctva objektov a zoh\u013eadnenia \u017eivotnosti objektov (oblasti vidite\u013enosti), ako aj prostredn\u00edctvom hodnotenia spr\u00e1vnosti pr\u00edstupu k pam\u00e4ti po\u010das vykon\u00e1vania k\u00f3du. Rust tie\u017e poskytuje prostriedky na ochranu pred prete\u010den\u00edm celo\u010d\u00edseln\u00fdch hodn\u00f4t, vy\u017eaduje povinn\u00fa inicializ\u00e1ciu hodn\u00f4t premenn\u00fdch pred ich pou\u017eit\u00edm, lep\u0161ie spracov\u00e1va chyby v \u0161tandardnej kni\u017enici, aplikuje koncept nemennosti (immutable) odkazov a premenn\u00fdch ako predvolen\u00fdch a pon\u00faka siln\u00fa statick\u00fa typiz\u00e1ciu na minimaliz\u00e1ciu logick\u00fdch ch\u00fdb. <\/p>\n

V novej verzii patchov pokra\u010duje odstra\u0148ovanie pripomienok, ktor\u00e9 boli vznesen\u00e9 po\u010das diskusie prvej, druhej a tretej verzie patchov. V novej verzii: <\/p>\n