{"id":181745,"date":"2026-05-26T02:49:17","date_gmt":"2026-05-26T00:49:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kernelscript-0-1-0"},"modified":"2026-05-26T02:49:17","modified_gmt":"2026-05-26T00:49:17","slug":"kernelscript-0-1-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/kernelscript-0-1-0","title":{"rendered":"KernelScript 0.1.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex>      <noindex><\/p>\n<p>Apresentado <strong><a rel=\"nofollow\" href=\"https:\/\/github.com\/multikernel\/kernelscript\">KernelScript<\/a><\/strong> \u2014 uma linguagem de programa\u00e7\u00e3o experimental para o desenvolvimento de programas eBPF, carregadores personalizados e extens\u00f5es do n\u00facleo Linux a partir de uma \u00fanica base de c\u00f3digo. O projeto desenvolve <strong>Multikernel Technologies<\/strong>, uma empresa que promove a arquitetura split-kernel \/ multikernel para Linux. O KernelScript foi apresentado pelo fundador da empresa Cong Wang na Linux Foundation Open Source Summit; o c\u00f3digo do projeto foi publicado no GitHub sob a licen\u00e7a <strong>Apache 2.0<\/strong>.<\/p>\n<p><\/noindex><\/noindex><br \/>\n<noindex><\/p>\n<p>eBPF (Extended Berkeley Packet Filter) \u2014 \u00e9 uma tecnologia que permite executar pequenos programas diretamente no n\u00facleo do Linux, sem alterar seu c\u00f3digo e sem comprometer a estabilidade do sistema. O eBPF ajuda a resolver diversas tarefas, desde monitoramento de desempenho at\u00e9 seguran\u00e7a e otimiza\u00e7\u00e3o de rede. Por exemplo, com o eBPF, \u00e9 poss\u00edvel rastrear chamadas de sistema, tr\u00e1fego de rede e outros eventos em tempo real. Isso permite identificar gargalos de desempenho e otimizar o sistema (<a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/companies\/selectel\/articles\/887272\/\">Habr<\/a>).<\/p>\n<p><\/noindex><\/p>\n<p>A ideia do KernelScript \u00e9 tornar o desenvolvimento de eBPF menos complicado do que usar a combina\u00e7\u00e3o C + libbpf, sem se limitar apenas ao rastreamento, como o bpftrace. Os desenvolvedores descrevem a linguagem como um DSL seguro em tipo, que combina <strong>eBPF<\/strong>, desenvolvimento em espa\u00e7o do usu\u00e1rio e kernelspace: a partir de um \u00fanico arquivo de origem, o compilador deve gerar c\u00f3digo para programas eBPF, parte do espa\u00e7o do usu\u00e1rio e integra\u00e7\u00e3o com m\u00f3dulos do n\u00facleo atrav\u00e9s de kfunc.<\/p>\n<p>As funcionalidades prometidas do KernelScript:<\/p>\n<ul>\n<li>\n<p><strong>Compila\u00e7\u00e3o para diferentes alvos a partir de um \u00fanico arquivo<\/strong> \u2014 fun\u00e7\u00f5es com atributos como @xdp, @tc, @helper e @kfunc s\u00e3o automaticamente atribu\u00eddas \u00e0 parte correta: programa XDP\/TC, fun\u00e7\u00e3o helper, fun\u00e7\u00e3o do n\u00facleo ou c\u00f3digo comum do espa\u00e7o do usu\u00e1rio.<\/p>\n<\/li>\n<li>\n<p><strong>Automatiza\u00e7\u00e3o de chamadas tail<\/strong> \u2014 em vez de configurar manualmente o array de programas e chamar bpf_tail_call(), o desenvolvedor \u00e9 incentivado a escrever uma chamada normal para outra fun\u00e7\u00e3o, enquanto a gera\u00e7\u00e3o do c\u00f3digo eBPF de baixo n\u00edvel \u00e9 deixada para o compilador.<\/p>\n<\/li>\n<li>\n<p><strong>Trabalho simplificado com dynptr e mapas eBPF<\/strong> \u2014 a linguagem oculta parte do trabalho manual com bpf_ringbuf_reserve_dynptr, bpf_dynptr_write e APIs similares. Os mapas eBPF podem ser usados como vari\u00e1veis globais acess\u00edveis a diferentes programas.<\/p>\n<\/li>\n<li>\n<p><strong>Controle do ciclo de vida dos programas<\/strong> \u2014 os programas eBPF s\u00e3o apresentados como valores tipados, o que, segundo os autores, permite prevenir, durante a compila\u00e7\u00e3o, erros como a tentativa de executar attach() antes de um load() bem-sucedido.<\/p>\n<\/li>\n<li>\n<p><strong>Suporte a kfunc<\/strong> \u2014 O KernelScript permite declarar fun\u00e7\u00f5es com o atributo @kfunc, que s\u00e3o executadas no espa\u00e7o do kernel e podem ser chamadas a partir de programas eBPF; promete gera\u00e7\u00e3o autom\u00e1tica de m\u00f3dulos do kernel e registros BTF.<\/p>\n<\/li>\n<li>\n<p><strong>Suporte aos principais tipos de programas eBPF<\/strong> \u2014 O README apresenta exemplos para XDP, TC, programas probe e perf_event, incluindo o trabalho com contadores de desempenho de hardware.<\/p>\n<\/li>\n<\/ul>\n<p>Os autores enfatizam que o KernelScript n\u00e3o \u00e9 um substituto para o n\u00facleo do Linux ou um novo runtime eBPF. \u00c9 mais um compilador e uma linguagem de alto n\u00edvel que deve gerar os habituais componentes de baixo n\u00edvel: c\u00f3digo eBPF, carregadores de userspace, Makefile e, se necess\u00e1rio, m\u00f3dulos do kernel.<\/p>\n<p>Por enquanto, o projeto deve ser encarado como um experimento inicial. O reposit\u00f3rio indica claramente que o KernelScript est\u00e1 em fase <strong>beta<\/strong>, o sintaxe e a API podem mudar sem garantir compatibilidade anterior, e seu uso em produ\u00e7\u00e3o n\u00e3o \u00e9 recomendado por enquanto.<\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/opensource\/18301757\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d KernelScript \u2014 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 \u044f\u0437\u044b\u043a \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 eBPF-\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c, \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0445 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u043e\u0432 \u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0439 \u044f\u0434\u0440\u0430 Linux \u0438\u0437 \u0435\u0434\u0438\u043d\u043e\u0439 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u044b. \u041f\u0440\u043e\u0435\u043a\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 Multikernel Technologies, \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f, \u043f\u0440\u043e\u0434\u0432\u0438\u0433\u0430\u044e\u0449\u0430\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0443 split-kernel \/ multikernel \u0434\u043b\u044f Linux. \u041e KernelScript \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b \u043e\u0441\u043d\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Cong Wang \u043d\u0430 Linux Foundation Open Source Summit; \u043a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043d\u0430 GitHub \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0. eBPF (Extended [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181745","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d KernelScript \u2014 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 \u044f\u0437\u044b\u043a 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