{"id":122006,"date":"2025-02-19T14:22:14","date_gmt":"2025-02-19T12:22:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/linus-torvalds-nameren-vklyuchat-svyazannye-s-rust-izmeneniya-v-obhod-mejntejnerov"},"modified":"2025-02-19T14:22:14","modified_gmt":"2025-02-19T12:22:14","slug":"linus-torvalds-nameren-vklyuchat-svyazannye-s-rust-izmeneniya-v-obhod-mejntejnerov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/linus-torvalds-nameren-vklyuchat-svyazannye-s-rust-izmeneniya-v-obhod-mejntejnerov","title":{"rendered":"Linus Torvalds pretende incluir mudan\u00e7as relacionadas ao Rust, ignorando os mantenedores.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Christoph Hellwig, mantenedor dos subsistemas DMA, KVM, Slab Allocator e arquitetura PowerPC no n\u00facleo Linux, que se recusou principlamente a aceitar as liga\u00e7\u00f5es Rust para o subsistema DMA, juntou-se \u00e0 discuss\u00e3o sobre as regras de manuten\u00e7\u00e3o do Rust como parte do n\u00facleo, publicadas pelo projeto Rust for Linux. Na opini\u00e3o de Christoph, tais regras s\u00e3o in\u00fateis, a menos que sejam acordadas com a comunidade e inclu\u00eddas na documenta\u00e7\u00e3o do n\u00facleo.      <\/p>\n<p>Christoph tamb\u00e9m observou que as regras cont\u00eam informa\u00e7\u00f5es incorretas sobre o fato de que os mantenedores podem tomar decis\u00f5es por conta pr\u00f3pria sobre a inclus\u00e3o de c\u00f3digo relacionado ao Rust em seus subsistemas. Segundo Christoph, em uma conversa particular, Linus Torvalds declarou que est\u00e1 determinado a aceitar o c\u00f3digo Rust no n\u00facleo, independentemente das obje\u00e7\u00f5es dos mantenedores. Assim, desenvolvedores e mantenedores do n\u00facleo ter\u00e3o que lidar com o Rust, quer queiram ou n\u00e3o.       <\/p>\n<p>Christoph tamb\u00e9m comparou novamente a dissemina\u00e7\u00e3o das liga\u00e7\u00f5es Rust a um tumor cancer\u00edgeno, que se espalhar\u00e1 por todos os subsistemas do n\u00facleo e resultar\u00e1 em fragmenta\u00e7\u00e3o. De um todo coeso, o n\u00facleo se transforma em um projeto escrito em v\u00e1rias linguagens, sem uma defini\u00e7\u00e3o clara de quando cada linguagem deve ser utilizada. Segundo Christoph, trabalhar com uma base de c\u00f3digo t\u00e3o misturada se tornou seu pior pesadelo, pois em tais condi\u00e7\u00f5es, a reescrita do c\u00f3digo de uma linguagem para outra e depois de volta \u00e9 constante.    <\/p>\n<p>Cristoph pede que lhe expliquem o objetivo da implementa\u00e7\u00e3o do Rust no n\u00facleo. Se o objetivo \u00e9 resolver problemas de seguran\u00e7a que surgem ao trabalhar em n\u00edveis baixos com a mem\u00f3ria, \u00e9 necess\u00e1rio modernizar primeiro o c\u00f3digo existente. Considerando que os mantenedores reagem de forma dolorosa at\u00e9 mesmo a coisas triviais, como verifica\u00e7\u00f5es de estouro de inteiros, \u00e9 incompreens\u00edvel como se pode superar a lacuna entre uma parte do n\u00facleo que n\u00e3o aceita nem mesmo regras simples de seguran\u00e7a e outra parte que se mant\u00e9m em conformidade com regras rigorosas. Se o objetivo \u00e9 simplificar o desenvolvimento de drivers, a introdu\u00e7\u00e3o do suporte a mais uma linguagem apenas aumentar\u00e1 a carga de trabalho e sobrecarregar\u00e1 ainda mais as pessoas que j\u00e1 sustentam a infraestrutura do n\u00facleo em funcionamento.      <\/p>\n<p>Quanto aos defensores da implementa\u00e7\u00e3o do Rust no n\u00facleo, eles mencionam os seguintes objetivos:  <\/p>\n<ul>\n<li class=\"l\"> Escrever novo c\u00f3digo na linguagem Rust reduzir\u00e1 o risco de erros ao lidar com mem\u00f3ria e condi\u00e7\u00f5es de corrida, al\u00e9m de eliminar alguns erros l\u00f3gicos.\n<li class=\"l\"> Ser\u00e1 mais f\u00e1cil para os mantenedores revisar altera\u00e7\u00f5es e fazer refatora\u00e7\u00f5es de m\u00f3dulos considerando as garantias oferecidas pela linguagem Rust.\n<li class=\"l\"> A presen\u00e7a de abstra\u00e7\u00f5es que utilizam recursos avan\u00e7ados da linguagem Rust facilitar\u00e1 a cria\u00e7\u00e3o de novos drivers e m\u00f3dulos.\n<li class=\"l\"> O suporte a uma linguagem moderna atrair\u00e1 novos participantes para o desenvolvimento do n\u00facleo.\n<li class=\"l\"> A aplica\u00e7\u00e3o das capacidades da ferramenta Rust simplificar\u00e1 o cumprimento das exig\u00eancias de documenta\u00e7\u00e3o do c\u00f3digo. Por exemplo, no projeto Rust for Linux, foi introduzida a exig\u00eancia de documenta\u00e7\u00e3o obrigat\u00f3ria para APIs p\u00fablicas, requisitos de seguran\u00e7a, blocos unsafe e invariantes de tipos.  <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62748\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c DMA, KVM, Slab Allocator \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b PowerPC \u0432 \u044f\u0434\u0440\u0435 Linux, \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0442\u043a\u0430\u0437\u0430\u0432\u0448\u0438\u0439\u0441\u044f \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0442\u044c \u0432 \u044f\u0434\u0440\u043e Rust-\u043e\u0431\u0432\u044f\u0437\u043a\u0438 \u0434\u043b\u044f \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b DMA, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0438\u043b\u0441\u044f \u043a \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u044e \u043f\u0440\u0430\u0432\u0438\u043b \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u044f Rust \u0432 \u0441\u043e\u0441\u0442\u0430\u0432\u0435 \u044f\u0434\u0440\u0430, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u043c Rust for Linux. \u041f\u043e \u043c\u043d\u0435\u043d\u0438\u044e \u041a\u0440\u0438\u0441\u0442\u043e\u0444\u0430 \u043f\u043e\u0434\u043e\u0431\u043d\u044b\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0431\u0435\u0441\u043f\u043e\u043b\u0435\u0437\u043d\u044b, \u043f\u043e\u043a\u0430 \u043e\u043d\u0438 \u043d\u0435 \u0441\u043e\u0433\u043b\u0430\u0441\u043e\u0432\u0430\u043d\u044b \u0441 \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e\u043c \u0438 \u043d\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u044b \u0432 [&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-122006","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=\"\u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c DMA, KVM, Slab Allocator \u0438 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