{"id":121771,"date":"2025-02-08T09:46:00","date_gmt":"2025-02-08T07:46:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-standartnoj-si-biblioteki-picolibc-1-8-9"},"modified":"2025-02-08T09:46:00","modified_gmt":"2025-02-08T07:46:00","slug":"vypusk-standartnoj-si-biblioteki-picolibc-1-8-9","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-standartnoj-si-biblioteki-picolibc-1-8-9","title":{"rendered":"Publication de la biblioth\u00e8que standard C PicoLibc 1.8.9","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La version standard de la biblioth\u00e8que C PicoLibc 1.8.9, d\u00e9velopp\u00e9e par Keith Packard (leader du projet X.Org), a \u00e9t\u00e9 publi\u00e9e pour une utilisation sur des dispositifs embarqu\u00e9s avec une m\u00e9moire de stockage permanent et une m\u00e9moire vive limit\u00e9es. Lors du d\u00e9veloppement, une partie du code a \u00e9t\u00e9 emprunt\u00e9e \u00e0 la biblioth\u00e8que newlib du projet Cygwin et \u00e0 AVR Libc, d\u00e9velopp\u00e9e pour les microcontr\u00f4leurs Atmel AVR. Le code PicoLibc est distribu\u00e9 sous licence BSD. La biblioth\u00e8que prend en charge les architectures ARM (32 bits), Aarch64, i386, RISC-V, x86_64, m68k, PowerPC, LatticMico32, LoongArch et OpenRisc.     <\/p>\n<p>Au d\u00e9part, le projet se d\u00e9veloppait sous le nom de &#171;newlib-nano&#187; et visait \u00e0 repenser certaines fonctions gourmandes en ressources de Newlib, qui \u00e9taient probl\u00e9matiques \u00e0 utiliser sur des dispositifs embarqu\u00e9s avec peu de RAM. Par exemple, dans PicoLibc, les fonctions stdio ont \u00e9t\u00e9 remplac\u00e9es par une version compacte de la biblioth\u00e8que avrlibc. Le code a \u00e9galement \u00e9t\u00e9 d\u00e9barrass\u00e9 des composants inutilis\u00e9s dans les builds pour dispositifs embarqu\u00e9s, fournis en dehors de la licence BSD. Une version simplifi\u00e9e du code d'initialisation (crt0) a \u00e9t\u00e9 ajout\u00e9e, et l'impl\u00e9mentation des appels a \u00e9t\u00e9 transf\u00e9r\u00e9e de &#8216;struct _reent&#8217; vers un m\u00e9canisme TLS (stockage de thread local). L'outil Meson a \u00e9t\u00e9 utilis\u00e9 pour la construction.     <\/p>\n<p>Dans cette nouvelle version :  <\/p>\n<ul>\n<li class=\"l\"> Ajout du support pour les architectures LoongArch, OpenRISC et LatticMico32.\n<li class=\"l\"> Mise en \u0153uvre de l'en-t\u00eate uchar.h, introduit dans la norme C11.\n<li class=\"l\"> Ajout de la configuration nano-malloc-clear-freed pour nettoyer la m\u00e9moire lib\u00e9r\u00e9e apr\u00e8s l'ex\u00e9cution de free() ou realloc().\n<li class=\"l\"> Possibilit\u00e9 d'utiliser clang multilib sur les syst\u00e8mes ARM64.\n<li class=\"l\"> Migration vers les nouveaux outils picolibc-ci-tools pour l'automatisation des builds dans les syst\u00e8mes d'int\u00e9gration continue.\n<li class=\"l\"> Pour l'architecture MIPS, le support de la technologie &#171;semihosting&#187; a \u00e9t\u00e9 mis en \u0153uvre, permettant au code s'ex\u00e9cutant dans un environnement de d\u00e9bogueur ou d'\u00e9mulateur d'utiliser les m\u00e9canismes d'entr\u00e9e\/sortie du syst\u00e8me h\u00f4te.\n<li class=\"l\"> Ajout du support picocrt et semihost pour les processeurs Xtensa.\n<li class=\"l\"> Ajout de param\u00e8tres pour une utilisation avec CoreBoot.\n<li class=\"l\"> Ajout de la fonction memset_explicit(), introduite dans la norme C23.\n<li class=\"l\"> Les tables de conversion des registres de caract\u00e8res ont \u00e9t\u00e9 mises \u00e0 jour vers la sp\u00e9cification Unicode 15.1.0.\n<li class=\"l\"> Fonctions asnprintf() et vasnprintf() transf\u00e9r\u00e9es depuis la biblioth\u00e8que newlib.\n<li class=\"l\"> Ajout du support de l'\u00e9mulateur FVP (Fixed Virtual Platforms), d\u00e9velopp\u00e9 par ARM.\n<li class=\"l\"> Ajout de la prise en charge des anciennes versions du compilateur GCC (ant\u00e9rieures \u00e0 4.4).\n<li class=\"l\"> Les impl\u00e9mentations de iconv et locale ont \u00e9t\u00e9 remplac\u00e9es par des versions plus compactes utilisant un code commun pour la gestion des encodages.          <\/ul>\n<p>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62690\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0439 \u0421\u0438-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 PicoLibc 1.8.9, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u041a\u0438\u0442\u043e\u043c \u041f\u0430\u043a\u043a\u0430\u0440\u0434\u043e\u043c (Keith Packard, \u043b\u0438\u0434\u0435\u0440 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 X.Org) \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 \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u043e\u0432 Atmel AVR. \u041a\u043e\u0434 PicoLibc \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0441\u0431\u043e\u0440\u043a\u0430 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 [&hellip;]<\/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-121771","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=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 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