{"id":98248,"date":"2020-10-28T02:42:23","date_gmt":"2020-10-28T00:42:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-standartnoj-si-biblioteki-picolibc-1-4-7"},"modified":"2020-11-18T00:58:42","modified_gmt":"2020-11-17T22:58:42","slug":"vypusk-standartnoj-si-biblioteki-picolibc-1-4-7","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/vypusk-standartnoj-si-biblioteki-picolibc-1-4-7","title":{"rendered":"Megjelent a PicoLibc 1.4.7 standard C k\u00f6nyvt\u00e1r.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Keith Packard, a prominent developer of Debian, leader of the X.Org project, and creator of multiple X extensions including XRender, XComposite, and XRandR, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/picolibc\/picolibc\/releases\">k\u00f6zz\u00e9tett<\/a><\/noindex> a szabv\u00e1nyos C k\u00f6nyvt\u00e1r kiad\u00e1sa <noindex><a rel=\"nofollow\" href=\"https:\/\/keithp.com\/picolibc\/\">PicoLibc 1.4.7<\/a><\/noindex>, amelyet be\u00e1gyazott eszk\u00f6z\u00f6k\u00f6n val\u00f3 haszn\u00e1latra fejlesztenek, korl\u00e1tozott \u00e1lland\u00f3 t\u00e1rol\u00f3 \u00e9s RAM m\u00e9rettel. A fejleszt\u00e9s sor\u00e1n a k\u00f3d egy r\u00e9sze a <noindex><a rel=\"nofollow\" href=\"http:\/\/sourceware.org\/newlib\/\">newlib<\/a><\/noindex> a Cygwin projektb\u0151l \u00e9s <noindex><a rel=\"nofollow\" href=\"https:\/\/www.nongnu.org\/avr-libc\/\">AVR Libc<\/a><\/noindex>, amely az Atmel AVR mikrokontrollerhez k\u00e9sz\u00fclt. A PicoLibc k\u00f3dja <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/keith-packard\/picolibc\">terjeszt\u00e9sre ker\u00fcl<\/a><\/noindex> BSD licensz alatt \u00e1ll. A k\u00f6nyvt\u00e1r \u00e9p\u00edt\u00e9se ARM (32-bit), i386, RISC-V, x86_64 \u00e9s PowerPC architekt\u00far\u00e1kra t\u00e1mogatott.<\/p>\n<p>A projekt kezdetben az &#171;newlib-nano&#187; n\u00e9ven fejl\u0151d\u00f6tt, \u00e9s c\u00e9lja a Newlib n\u00e9h\u00e1ny er\u0151forr\u00e1s-ig\u00e9nyes funkci\u00f3j\u00e1nak \u00e1tdolgoz\u00e1sa volt, amelyeket neh\u00e9z volt haszn\u00e1lni alacsony RAM-mal rendelkez\u0151 be\u00e1gyazott eszk\u00f6z\u00f6k\u00f6n. P\u00e9ld\u00e1ul a stdio funkci\u00f3kat az avrlibc k\u00f6nyvt\u00e1rb\u00f3l sz\u00e1rmaz\u00f3 kompakt verzi\u00f3ra cser\u00e9lt\u00e9k. A k\u00f3dot emellett megtiszt\u00edtott\u00e1k az alacsony RAM-mal rendelkez\u0151 be\u00e1gyazott eszk\u00f6z\u00f6k telep\u00edt\u00e9s\u00e9hez sz\u00fcks\u00e9gtelen komponensekt\u0151l, amelyeket nem BSD licenc alapj\u00e1n biztos\u00edtanak. Egyszer\u0171s\u00edtett inicializ\u00e1l\u00f3 (crt0) k\u00f3d ker\u00fclt hozz\u00e1ad\u00e1sra, a lok\u00e1lis sz\u00e1lak megval\u00f3s\u00edt\u00e1sa pedig a &#8216;struct _reent&#8217; helyett TLS mechanizmusra lett \u00e1t\u00e1ll\u00edtva.<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Thread-local_storage\">sz\u00e1l-specifikus t\u00e1rol\u00e1s<\/a><\/noindex>A build sor\u00e1n a Meson eszk\u00f6zk\u00e9szletet haszn\u00e1lt\u00e1k. <\/p>\n<p>Az \u00faj kiad\u00e1sban:<\/p>\n<ul>\n<li class=\"l\"> Matematikailag ellen\u0151rz\u00f6tt <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50470\">ford\u00edt\u00f3<\/a><\/noindex> CompCert <noindex><a rel=\"nofollow\" href=\"http:\/\/compcert.inria.fr\/compcert-C.html\">Hozz\u00e1adva a Clang ford\u00edt\u00f3 t\u00e1mogat\u00e1sa.<\/a><\/noindex>.\n<li class=\"l\"> A \u2018gamma\u2019 funkci\u00f3 viselked\u00e9se \u00f6sszhangba ker\u00fclt a Glibc viselked\u00e9s\u00e9vel.\n<li class=\"l\"> A &#8216;gamma&#8217; f\u00fcggv\u00e9ny viselked\u00e9se \u00f6sszhangba ker\u00fclt a Glibc viselked\u00e9s\u00e9vel.\n<li class=\"l\"> N\u00f6velt\u00e9k a nano-realloc teljes\u00edtm\u00e9ny\u00e9t, k\u00fcl\u00f6n\u00f6sen a szabad blokkok egyes\u00edt\u00e9se \u00e9s a heap m\u00e9ret\u00e9nek b\u0151v\u00edt\u00e9se sor\u00e1n v\u00e9gzett m\u0171veletek eset\u00e9n.\n<li class=\"l\"> Tesztk\u00e9szlet hozz\u00e1adva a malloc m\u0171k\u00f6d\u00e9s\u00e9nek pontoss\u00e1g\u00e1nak ellen\u0151rz\u00e9s\u00e9re.\n<li class=\"l\"> Jav\u00edtott\u00e1k a Windows platform t\u00e1mogat\u00e1s\u00e1t \u00e9s lehet\u0151v\u00e9 tett\u00e9k a mingw eszk\u00f6z\u00f6k\u00e9szlettel val\u00f3 buildel\u00e9st.\n<li class=\"l\"> ARM rendszereken, ha el\u00e9rhet\u0151, a TLS (Thread-Local Storage) hardverregisztert haszn\u00e1lt\u00e1k.\n<li class=\"l\"> \ud83e\udd47A PicoLibc 1.4.7 szabv\u00e1nyos C k\u00f6nyvt\u00e1r\u00e1nak kiad\u00e1sa | ProHoster\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Forr\u00e1s: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53962\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u0438\u0442 \u041f\u0430\u043a\u043a\u0430\u0440\u0434 (Keith Packard), \u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a Debian, \u043b\u0438\u0434\u0435\u0440 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 X.Org \u0438 \u0441\u043e\u0437\u0434\u0430\u0442\u0435\u043b\u044c \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u0430 X-\u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0439, \u0432\u043a\u043b\u044e\u0447\u0430\u044f XRender, XComposite \u0438 XRandR, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0432\u044b\u043f\u0443\u0441\u043a \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0439 \u0421\u0438-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 PicoLibc 1.4.7, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0434\u043b\u044f \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043d\u0430 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 \u0441 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u044b\u043c \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u043c \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430 \u0438 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438. \u041f\u0440\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0447\u0430\u0441\u0442\u044c \u043a\u043e\u0434\u0430 \u0437\u0430\u0438\u043c\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0430 \u0438\u0437 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 newlib \u043e\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0421ygwin \u0438 AVR Libc, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0432\u0448\u0435\u0439\u0441\u044f \u0434\u043b\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-98248","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u0438\u0442 \u041f\u0430\u043a\u043a\u0430\u0440\u0434 (Keith Packard), \u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0439 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