{"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\/it\/blog\/news\/vypusk-standartnoj-si-biblioteki-picolibc-1-8-9","title":{"rendered":"Uscita della libreria standard C PicoLibc 1.8.9","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Pubblicato il rilascio della libreria standard C PicoLibc 1.8.9, sviluppata da Keith Packard (leader del progetto X.Org) per l'uso su dispositivi embedded con spazio di archiviazione limitato e memoria RAM ridotta. Nello sviluppo, parte del codice \u00e8 stata presa in prestito dalla libreria newlib del progetto Cygwin e da AVR Libc, sviluppata per microcontrollori Atmel AVR. Il codice PicoLibc \u00e8 distribuito con licenza BSD. \u00c8 supportata la compilazione della libreria per le architetture ARM (32-bit), Aarch64, i386, RISC-V, x86_64, m68k, PowerPC, LatticeMico32, LoongArch e OpenRisc.     <\/p>\n<p>Inizialmente, il progetto si \u00e8 sviluppato con il nome &#171;newlib-nano&#187; ed era mirato a rielaborare alcune funzioni che richiedevano molte risorse di Newlib, difficili da utilizzare su dispositivi embedding con poca RAM. Ad esempio, nelle PicoLibc, le funzioni stdio sono state sostituite da una versione compatta della libreria avrlibc. Il codice \u00e8 stato anche ripulito dai componenti non utilizzati nella build per dispositivi embedded, forniti non sotto licenza BSD. \u00c8 stata aggiunta una versione semplificata del codice di inizializzazione (crt0), e l'implementazione delle chiamate \u00e8 stata trasferita da &#8216;struct _reent&#8217; al meccanismo TLS (thread-local storage). Per la build \u00e8 stato utilizzato il toolkit Meson.     <\/p>\n<p>Nel nuovo rilascio:  <\/p>\n<ul>\n<li class=\"l\"> Aggiunta supporto per le architetture LoongArch, OpenRISC e LatticeMico32.\n<li class=\"l\"> Proposta l'implementazione del file di intestazione uchar.h, apparso nello standard C11.\n<li class=\"l\"> Aggiunta l'impostazione nano-malloc-clear-freed per liberare la memoria dopo l'esecuzione di free() o realloc().\n<li class=\"l\"> Realizzata la possibilit\u00e0 di utilizzare clang multilib sui sistemi ARM64.\n<li class=\"l\"> Transizione al nuovo strumento picolibc-ci-tools per la compilazione automatica nei sistemi di integrazione continua.\n<li class=\"l\"> Per l'architettura MIPS \u00e8 stata implementata il supporto della tecnologia &#171;semihosting&#187;, che consente al codice eseguito in un ambiente di debug o in un emulatore di utilizzare i meccanismi di input\/output del sistema host.\n<li class=\"l\"> Per i processori Xtensa \u00e8 stato aggiunto il supporto per picocrt e semihost.\n<li class=\"l\"> Aggiunte impostazioni per l'uso con CoreBoot.\n<li class=\"l\"> Aggiunta la funzione memset_explicit(), apparsa nello standard C23.\n<li class=\"l\"> Tabelle di conversione del registro dei caratteri aggiornate alla specifica Unicode 15.1.0.\n<li class=\"l\"> Funzioni asnprintf() e vasnprintf() trasferite dalla libreria newlib.\n<li class=\"l\"> Aggiunto il supporto per l'emulatore FVP (Fixed Virtual Platforms), sviluppato da ARM.\n<li class=\"l\"> Aggiunto il supporto per versioni obsolete del compilatore GCC (precedenti alla 4.4).\n<li class=\"l\"> Le implementazioni di iconv e locale sono state sostituite con varianti pi\u00f9 compatte, in cui \u00e8 stato utilizzato un codice comune per la gestione delle codifiche.          <\/ul>\n<p>Fonte: <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 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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 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