{"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\/fr\/blog\/news\/vypusk-standartnoj-si-biblioteki-picolibc-1-4-7","title":{"rendered":"Sortie de la biblioth\u00e8que C standard PicoLibc 1.4.7","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Keith Packard, d\u00e9veloppeur actif de Debian, leader du projet X.Org et cr\u00e9ateur de nombreuses extensions X, y compris XRender, XComposite et XRandR, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/picolibc\/picolibc\/releases\">a publi\u00e9<\/a><\/noindex> publication de la biblioth\u00e8que standard C <noindex><a rel=\"nofollow\" href=\"https:\/\/keithp.com\/picolibc\/\">PicoLibc 1.4.7<\/a><\/noindex>, d\u00e9velopp\u00e9e pour \u00eatre utilis\u00e9e sur des appareils embarqu\u00e9s avec un stockage permanent et une m\u00e9moire vive limit\u00e9s. Dans le d\u00e9veloppement, une partie du code a \u00e9t\u00e9 emprunt\u00e9e \u00e0 la biblioth\u00e8que <noindex><a rel=\"nofollow\" href=\"http:\/\/sourceware.org\/newlib\/\">newlib<\/a><\/noindex> du projet Cygwin et <noindex><a rel=\"nofollow\" href=\"https:\/\/www.nongnu.org\/avr-libc\/\">AVR Libc<\/a><\/noindex>, d\u00e9velopp\u00e9e pour les microcontr\u00f4leurs Atmel AVR. Le code de PicoLibc <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/keith-packard\/picolibc\">est distribu\u00e9<\/a><\/noindex> sous licence BSD. La biblioth\u00e8que est compil\u00e9e pour les architectures ARM (32 bits), i386, RISC-V, x86_64 et PowerPC.<\/p>\n<p>\u00c0 l'origine, le projet a \u00e9t\u00e9 d\u00e9velopp\u00e9 sous le nom de \u00ab newlib-nano \u00bb et visait \u00e0 repenser certaines fonctions gourmandes en ressources de Newlib, qui \u00e9taient probl\u00e9matiques \u00e0 utiliser sur des dispositifs int\u00e9gr\u00e9s avec peu de RAM. Par exemple, les fonctions stdio ont \u00e9t\u00e9 remplac\u00e9es par une version compacte de la biblioth\u00e8que avrlibc. Le code a \u00e9galement \u00e9t\u00e9 nettoy\u00e9 des composants non utilis\u00e9s dans la construction pour les appareils int\u00e9gr\u00e9s, fournis sans licence BSD. Une version simplifi\u00e9e du code d'initialisation (crt0) a \u00e9t\u00e9 ajout\u00e9e, et l'impl\u00e9mentation des flux locaux a \u00e9t\u00e9 convertie de 'struct _reent' au m\u00e9canisme TLS.<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Thread-local_storage\">stockage local des threads<\/a><\/noindex>). L'outil de construction Meson a \u00e9t\u00e9 utilis\u00e9. <\/p>\n<p>Dans cette nouvelle version :<\/p>\n<ul>\n<li class=\"l\"> Ajout de la possibilit\u00e9 de construire avec un <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50470\">compilateur v\u00e9rifi\u00e9 math\u00e9matiquement<\/a><\/noindex> CompCert <noindex><a rel=\"nofollow\" href=\"http:\/\/compcert.inria.fr\/compcert-C.html\">Ajout de la prise en charge du compilateur Clang.<\/a><\/noindex>.\n<li class=\"l\"> Le comportement de la fonction \u2018gamma\u2019 a \u00e9t\u00e9 harmonis\u00e9 avec celui de Glibc.\n<li class=\"l\"> Le comportement de la fonction 'gamma' a \u00e9t\u00e9 harmonis\u00e9 avec celui de Glibc.\n<li class=\"l\"> Les performances de nano-realloc ont \u00e9t\u00e9 am\u00e9lior\u00e9es, en particulier lors des op\u00e9rations de fusion des blocs libres et d'augmentation de la taille du tas.\n<li class=\"l\"> Un ensemble de tests a \u00e9t\u00e9 ajout\u00e9 pour v\u00e9rifier la validit\u00e9 du fonctionnement de malloc.\n<li class=\"l\"> Am\u00e9lioration du support de la plateforme Windows et ajout de la possibilit\u00e9 de construction avec l'outil mingw.\n<li class=\"l\"> Sur les syst\u00e8mes ARM, le registre mat\u00e9riel TLS (Thread-Local Storage) est activ\u00e9 si disponible.\n<li class=\"l\"> \ud83e\udd47Publication de la biblioth\u00e8que standard C PicoLibc 1.4.7 | ProHoster\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Source : <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 5.0.2 - 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 \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, 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