{"id":99483,"date":"2021-03-19T22:22:36","date_gmt":"2021-03-19T20:22:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-vetku-yadra-linux-next-dobavlen-kod-dlya-razrabotki-drajverov-na-yazyke-rust"},"modified":"2021-03-19T22:22:36","modified_gmt":"2021-03-19T20:22:36","slug":"v-vetku-yadra-linux-next-dobavlen-kod-dlya-razrabotki-drajverov-na-yazyke-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/v-vetku-yadra-linux-next-dobavlen-kod-dlya-razrabotki-drajverov-na-yazyke-rust","title":{"rendered":"Do j\u00e1dra Linux-next byl p\u0159id\u00e1n k\u00f3d pro v\u00fdvoj ovlada\u010d\u016f v jazyce Rust.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Do v\u011btve linux-next, na jej\u00edm\u017e z\u00e1klad\u011b bude vytvo\u0159ena verze j\u00e1dra Linux 5.13, byl zahrnut po\u010d\u00e1te\u010dn\u00ed soubor komponent pro v\u00fdvoj ovlada\u010d\u016f za\u0159\u00edzen\u00ed v jazyce Rust. Byla tak\u00e9 zve\u0159ejn\u011bna dokumentace k pou\u017e\u00edv\u00e1n\u00ed Rustu v j\u00e1d\u0159e Linux a p\u0159\u00edklad j\u00e1drov\u00e9ho modulu s ovlada\u010dem symbolick\u00e9ho za\u0159\u00edzen\u00ed napsan\u00fdm v Rustu. K\u00f3d p\u0159idal Stephen Rothwell, udr\u017eovatel v\u011btve Linux-next. Obvykle zahrnuje Linux-next k\u00f3d p\u0159ipraven\u00fd k p\u0159ijet\u00ed v dal\u0161\u00edm cyklu p\u0159\u00edjmu zm\u011bn do j\u00e1dra, ale zat\u00edm nen\u00ed jasn\u00e9, zda bude podpora Rustu p\u0159ijata Linusem Torvaldsem do Linuxu 5.13, proto\u017ee k\u00f3d nepro\u0161el \u0161irok\u00fdm hodnocen\u00edm od v\u00fdvoj\u00e1\u0159\u016f. <\/p>\n
Podpora v\u00fdvoje ovlada\u010d\u016f j\u00e1dra Linux v jazyce Rust byla aktivn\u011b prob\u00edr\u00e1na v lo\u0148sk\u00e9m roce, v\u010detn\u011b \u00fa\u010dasti Linuse Torvaldse, kter\u00fd tuto mo\u017enost nevylu\u010doval. My\u0161lenku tak\u00e9 podpo\u0159il Greg Kroah-Hartman, odpov\u011bdn\u00fd za podporu stabiln\u00ed v\u011btve j\u00e1dra Linux. Pou\u017eit\u00ed Rustu pro v\u00fdvoj ovlada\u010d\u016f umo\u017en\u00ed s minim\u00e1ln\u00edm \u00fasil\u00edm vytv\u00e1\u0159et bezpe\u010dn\u00e9 a kvalitn\u011bj\u0161\u00ed ovlada\u010de, zbaven\u00e9 probl\u00e9m\u016f, jako je p\u0159\u00edstup do oblasti pam\u011bti po jej\u00edm uvoln\u011bn\u00ed, dereferencov\u00e1n\u00ed nulov\u00fdch ukazatel\u016f a vybo\u010den\u00ed mimo meze bufferu. <\/p>\n
Pro aktivaci podpory Rust v v\u011btvi linux-next byla do KConfig p\u0159id\u00e1na mo\u017enost CONFIG_RUST (\"Podpora Rust\" v menu \"Obecn\u00e9 nastaven\u00ed\"), p\u0159i jej\u00edm\u017e zapnut\u00ed se kontroluje p\u0159\u00edtomnost kompil\u00e1toru rustc v syst\u00e9mu, a pokud je p\u0159\u00edtomen, umo\u017e\u0148uje aktivaci dal\u0161\u00edch komponent spojen\u00fdch s Rustem (nap\u0159\u00edklad v menu \"Kernel hacking\" se objev\u00ed sekce \"Rust hacking\"). Pou\u017e\u00edv\u00e1n\u00ed Rustu se pova\u017euje za volbu, kter\u00e1 nen\u00ed aktivn\u00ed ve v\u00fdchoz\u00edm nastaven\u00ed a nevede k p\u0159id\u00e1n\u00ed Rustu mezi povinn\u00e9 z\u00e1vislosti pro sestaven\u00ed j\u00e1dra. <\/p>\n
Sestaven\u00ed komponent j\u00e1dra v Rustu je mo\u017en\u00e9 jak p\u0159i pou\u017eit\u00ed GCC, tak p\u0159i sestavov\u00e1n\u00ed pomoc\u00ed Clang. Pro vyu\u017eit\u00ed Rustu v j\u00e1d\u0159e je pot\u0159eba nainstalovat \u010derstv\u00e9 no\u010dn\u00ed verze kompil\u00e1toru rustc, nejm\u00e9n\u011b z v\u011btve nightly-2021-02-20 (pokud to bude mo\u017en\u00e9, slibuj\u00ed p\u0159id\u00e1n\u00ed podpory pro stabiln\u00ed v\u011btve Rustu, ale zat\u00edm je to v\u00e1z\u00e1no na n\u011bkter\u00e9 experiment\u00e1ln\u00ed funkce). Tak\u00e9 je nutn\u00e9 m\u00edt v syst\u00e9mu standardn\u00ed knihovny Rustu dod\u00e1van\u00e9 v bal\u00ed\u010dku rust-src a gener\u00e1tor vazeb bindgen. Podpora je zat\u00edm omezena na platformy x86_64 a ARM64. \n Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"