{"id":113048,"date":"2024-01-22T11:28:11","date_gmt":"2024-01-22T09:28:11","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-standartnoj-si-biblioteki-picolibc-1-8-6"},"modified":"2024-01-22T11:28:11","modified_gmt":"2024-01-22T09:28:11","slug":"vypusk-standartnoj-si-biblioteki-picolibc-1-8-6","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/vypusk-standartnoj-si-biblioteki-picolibc-1-8-6","title":{"rendered":"Wydanie standardowej biblioteki C PicoLibc 1.8.6","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Opublikowano wersj\u0119 standardowej biblioteki C PicoLibc 1.8.6, rozwijanej przez Keitha Packarda (lidera projektu X.Org) do zastosowa\u0144 na urz\u0105dzeniach wbudowanych z ograniczon\u0105 wielko\u015bci\u0105 pami\u0119ci trwa\u0142ej i RAM. Przy opracowywaniu cz\u0119\u015b\u0107 kodu zosta\u0142a zaadaptowana z biblioteki newlib projektu Cygwin oraz AVR Libc, rozwijanej dla mikrokontroler\u00f3w Atmel AVR. Kod PicoLibc jest udost\u0119pniany na licencji BSD. Wspierana jest budowa biblioteki dla architektur ARM (32-bit), Aarch64, i386, RISC-V, x86_64, m68k oraz PowerPC.     <\/p>\n<p>Pocz\u0105tkowo projekt rozwija\u0142 si\u0119 pod nazw\u0105 &#171;newlib-nano&#187; i mia\u0142 na celu przekszta\u0142cenie niekt\u00f3rych zasobo\u017cernych funkcji Newlib, kt\u00f3re by\u0142y problematyczne do u\u017cycia na urz\u0105dzeniach wbudowanych z ograniczon\u0105 pami\u0119ci\u0105 RAM. Na przyk\u0142ad, w PicoLibc funkcje stdio zosta\u0142y zast\u0105pione kompaktow\u0105 wersj\u0105 z biblioteki avrlibc. Kod zosta\u0142 r\u00f3wnie\u017c oczy\u015bci\u0107 z nieu\u017cywanych w budowie komponent\u00f3w dla urz\u0105dze\u0144 wbudowanych, dostarczanych nie na licencji BSD. Dodano uproszczon\u0105 wersj\u0119 kodu inicjalizacji (crt0), a realizacja wywo\u0142a\u0144 zosta\u0142a przeniesiona z &#8216;struct _reent&#8217; na mechanizm TLS (przechowywania lokalnego w\u0105tku). Do kompilacji u\u017cyto narz\u0119dzi Meson.     <\/p>\n<p>W nowym wydaniu:  <\/p>\n<ul>\n<li class=\"l\"> Przeniesiono zmiany z Newlib 4.4.0, takie jak wsparcie typu &#171;long double&#187; na architekturach i386, RISC-V, Aarch64 i x86_64, wsparcie dla rozszerze\u0144 RISC-V Zfinx\/Zdinx, mo\u017cliwo\u015b\u0107 u\u017cycia masek przy wstawianiu katalog\u00f3w, realizacja portu dla procesor\u00f3w Xtensa, wydzielenie obs\u0142ugi printf do oddzielnych plik\u00f3w, aby zmniejszy\u0107 rozmiar przy \u0142\u0105czeniu.\n<li class=\"l\"> W picolibc.ld dodano symbole &#171;__eh_*&#187; dla LLVM libunwind.\n<li class=\"l\"> Dodano testowe wsparcie dla 32-bitowych system\u00f3w SPARC.\n<li class=\"l\"> Zapewniono wsparcie dla platform docelowych z nietypowymi typami zmiennoprzecinkowymi, kt\u00f3re teraz s\u0105 odzwierciedlane w typach 32-, 64-, 80- i 128-bitowych w kodzie picolibc.\n<li class=\"l\"> Dodano wsparcie dla architektury RISC SuperH.\n<li class=\"l\"> Ulepszono \u015bledzenie stosu podczas debugowania kodu wyj\u0105tk\u00f3w w systemach RISC-V.\n<li class=\"l\"> Dodano opcj\u0119 &#171;-Dfast-bufio=true&#187; w celu zwi\u0119kszenia wydajno\u015bci odczytu i zapisu przy u\u017cyciu bufio.\n<li class=\"l\"> Przeprowadzono oczyszczenie publicznych funkcji inline dla wsp\u00f3lnej semantyki gnu_inline.\n<li class=\"l\"> Wi\u0119kszo\u015b\u0107 funkcji fenv dla zwi\u0119kszenia wydajno\u015bci zosta\u0142a przeniesiona na u\u017cycie funkcji inline (gnu_inline) zamiast tradycyjnych.\n<li class=\"l\"> Stworzono alternatywn\u0105 implementacj\u0119 ctype, kt\u00f3ra nie korzysta z tablicy ctype i dokonuje bezpo\u015bredniego por\u00f3wnania warto\u015bci.        <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60476\">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 1.8.6, \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-113048","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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