{"id":103436,"date":"2022-02-25T21:37:00","date_gmt":"2022-02-25T19:37:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadre-linux-5-18-planiruyut-razreshit-ispolzovanie-standarta-yazyka-si-c11"},"modified":"2022-02-25T21:37:00","modified_gmt":"2022-02-25T19:37:00","slug":"v-yadre-linux-5-18-planiruyut-razreshit-ispolzovanie-standarta-yazyka-si-c11","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/v-yadre-linux-5-18-planiruyut-razreshit-ispolzovanie-standarta-yazyka-si-c11","title":{"rendered":"Linux 5.18 tuumas plaanitakse lubada C11 keele standardi kasutamine","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Keskuste k\u00e4igus Spectre'i klassi haavatavustega seotud koodiparanduste komplekti \u00fcle selgus, et probleemi oleks v\u00f5imalik elegantselt lahendada, kui tuum saaks toetada uuema versiooni C-keele standardit. Praegu peab tuuma lisatav kood vastama ANSI C (C89) spetsifikatsioonile, mis loodi juba 1989. aastal. <\/p>\n

Spectre'iga seotud probleem koodis tekkis, kuna p\u00e4rast ts\u00fcklit j\u00e4tkus eraldi m\u00e4\u00e4ratud iteratori kasutamine \u2014 seotud loendi elementide l\u00e4bimiseks kasutati makrot ja kuna ts\u00fckli iterator edastatakse sellele makrole, m\u00e4\u00e4ratakse see ts\u00fcklist v\u00e4ljaspool ja j\u00e4\u00e4b p\u00e4rast ts\u00fcklit k\u00e4tte saadavaks. C99 standardi kasutamine v\u00f5imaldaks m\u00e4\u00e4rata muutujad for() plokis, mis lahendaks probleemi ilma erilahendusi v\u00e4lja m\u00f5tlema. <\/p>\n

Linus Torvalds n\u00f5ustus uute spetsifikatsioonide toe loomise idee ja pakkus, et tuum 5.18 peaks liikuma 2011. aastal avaldatud C11 standardi kasutamisele. Eelkontrolli k\u00e4igus l\u00e4ks GCC ja Clang uue re\u017eiimiga koostamine probleemideta. Kui p\u00f5hjalikumal testimisel ei ilmne etten\u00e4htud probleeme, asendatakse tuumade 5.18 koostamis skriptides valik '\u2014std=gnu89' valikuga '\u2014std=gnu11 -Wno-shift-negative-value'. Samuti kaaluti C17 standardi kasutamist, kuid sel juhul oleks vaja t\u00f5sta minimaalset toetatud GCC versiooni. C11 toe v\u00f5imaldamine mahub aga praegustesse GCC versiooni n\u00f5uetesse (5.1).
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/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-103436","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Linuxi tuumas 5.18 plaanitakse lubada C11 keele standardi kasutamine | ProHoster","description":"Keskuste k\u00e4igus Spectre'i klassi haavatavustega seotud koodiparanduste komplekti \u00fcle selgus, et probleemi oleks v\u00f5imalik elegantselt lahendada, kui 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