{"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\/es\/blog\/news\/vypusk-standartnoj-si-biblioteki-picolibc-1-8-9","title":{"rendered":"Lanzamiento de la biblioteca est\u00e1ndar C PicoLibc 1.8.9","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Se ha publicado el lanzamiento de la biblioteca est\u00e1ndar C PicoLibc 1.8.9, desarrollada por Keith Packard (l\u00edder del proyecto X.Org) para su uso en dispositivos integrados con almacenamiento permanente y memoria RAM limitados. Durante el desarrollo, parte del c\u00f3digo fue tomado de la biblioteca newlib del proyecto Cygwin y AVR Libc, que se desarroll\u00f3 para microcontroladores Atmel AVR. El c\u00f3digo de PicoLibc se distribuye bajo la licencia BSD. Se soporta la compilaci\u00f3n de la biblioteca para arquitecturas ARM (32 bits), Aarch64, i386, RISC-V, x86_64, m68k, PowerPC, LatticMico32, LoongArch y OpenRisc.     <\/p>\n<p>Inicialmente, el proyecto se desarroll\u00f3 bajo el nombre &#171;newlib-nano&#187; y ten\u00eda como objetivo rehacer algunas funciones que consumen muchos recursos de Newlib, las cuales eran problem\u00e1ticas de usar en dispositivos embebidos con poca RAM. Por ejemplo, en PicoLibc las funciones stdio son reemplazadas por una versi\u00f3n compacta de la biblioteca avrlibc. El c\u00f3digo tambi\u00e9n ha sido depurado de componentes que no se utilizan en la construcci\u00f3n para dispositivos embebidos, los cuales no est\u00e1n bajo la licencia BSD. Se ha a\u00f1adido una versi\u00f3n simplificada del c\u00f3digo de inicializaci\u00f3n (crt0), y la implementaci\u00f3n de llamadas ha sido trasladada de &#8216;struct _reent&#8217; al mecanismo de TLS (almacenamiento local de hilos). Se utiliz\u00f3 la herramienta Meson para la construcci\u00f3n.     <\/p>\n<p>En esta nueva versi\u00f3n:  <\/p>\n<ul>\n<li class=\"l\"> Se a\u00f1adieron soporte para las arquitecturas LoongArch, OpenRISC y LatticMico32.\n<li class=\"l\"> Se propuso la implementaci\u00f3n del archivo de encabezado uchar.h, que apareci\u00f3 en el est\u00e1ndar C11.\n<li class=\"l\"> Se a\u00f1adi\u00f3 la configuraci\u00f3n nano-malloc-clear-freed para limpiar la memoria liberada despu\u00e9s de la ejecuci\u00f3n de free() o realloc().\n<li class=\"l\"> Se implement\u00f3 la posibilidad de usar clang multilib en sistemas ARM64.\n<li class=\"l\"> Se ha realizado la transici\u00f3n a la nueva herramienta picolibc-ci-tools para la construcci\u00f3n autom\u00e1tica en sistemas de integraci\u00f3n continua.\n<li class=\"l\"> Para la arquitectura MIPS, se ha implementado el soporte para la tecnolog\u00eda \u00absemihosting\u00bb, que permite que el c\u00f3digo que se ejecuta en un entorno de depuraci\u00f3n o emulaci\u00f3n utilice los mecanismos de entrada\/salida del sistema host.\n<li class=\"l\"> Para los procesadores Xtensa, se a\u00f1adi\u00f3 soporte para picocrt y semihost.\n<li class=\"l\"> Se a\u00f1aden configuraciones para su uso con CoreBoot.\n<li class=\"l\"> Se a\u00f1adi\u00f3 la funci\u00f3n memset_explicit(), que apareci\u00f3 en el est\u00e1ndar C23.\n<li class=\"l\"> Las tablas de conversi\u00f3n de registros de caracteres se actualizaron a la especificaci\u00f3n Unicode 15.1.0.\n<li class=\"l\"> Se trasladaron las funciones asnprintf() y vasnprintf() de la biblioteca newlib.\n<li class=\"l\"> Se a\u00f1adi\u00f3 soporte para el emulador FVP (Fixed Virtual Platforms), desarrollado por ARM.\n<li class=\"l\"> Se a\u00f1adi\u00f3 soporte para versiones antiguas del compilador GCC (anteriores a 4.4).\n<li class=\"l\"> Las implementaciones de iconv y locale se reemplazaron por versiones m\u00e1s compactas, que utilizan un c\u00f3digo com\u00fan para trabajar con codificaciones.          <\/ul>\n<p>Fuente: <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\" 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