{"id":88167,"date":"2020-07-13T01:42:49","date_gmt":"2020-07-12T23:42:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/linus-torvalds-podklyuchilsya-k-obsuzhdeniyu-nachalnoj-realizaczii-podderzhki-rust-v-yadre-linux"},"modified":"2020-07-13T01:42:49","modified_gmt":"2020-07-12T23:42:49","slug":"linus-torvalds-podklyuchilsya-k-obsuzhdeniyu-nachalnoj-realizaczii-podderzhki-rust-v-yadre-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/linus-torvalds-podklyuchilsya-k-obsuzhdeniyu-nachalnoj-realizaczii-podderzhki-rust-v-yadre-linux","title":{"rendered":"Linus Torvalds se juntou \u00e0 discuss\u00e3o sobre a implementa\u00e7\u00e3o inicial do suporte ao Rust no n\u00facleo do Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Linus Torvalds e negou a informa\u00e7\u00e3o de que o c\u00f3digo malicioso foi inserido ap\u00f3s a viola\u00e7\u00e3o de seu site \"r.cx\", explicando que ele estava apenas se divertindo, e perlobfuscator.com n\u00e3o foi utilizado para ocultar nada, mas para reduzir o tamanho do c\u00f3digo e facilitar sua c\u00f3pia atrav\u00e9s da \u00e1rea de transfer\u00eancia. A escolha do nome da fun\u00e7\u00e3o \"botstrap\" foi explicada pelo fato de que essa palavra \"soa como bot e \u00e9 mais curta que bootstrap\". O autor do m\u00f3dulo tamb\u00e9m garantiu que as manipula\u00e7\u00f5es identificadas n\u00e3o realizam a\u00e7\u00f5es maliciosas, mas apenas demonstram o carregamento e a execu\u00e7\u00e3o de c\u00f3digo via TCP.<\/a><\/noindex> para discuss\u00e3o da funcionalidade<\/a><\/noindex> a adi\u00e7\u00e3o de ferramentas de desenvolvimento na linguagem Rust ao n\u00facleo do Linux. Josh Triplett da Intel, que trabalha em projeto<\/a><\/noindex> trazer a linguagem Rust para paridade com a linguagem C na \u00e1rea de programa\u00e7\u00e3o de sistemas, um patch escrito \u00e0 m\u00e3o para corre\u00e7\u00e3o.<\/a><\/noindex> Na fase inicial, adicione uma op\u00e7\u00e3o no Kconfig para suportar Rust, que n\u00e3o levaria \u00e0 inclus\u00e3o nas depend\u00eancias do compilador Rust durante a constru\u00e7\u00e3o nos modos \"make allnoconfig\" e \"make allyesconfig\", permitindo uma experimenta\u00e7\u00e3o mais livre com o c\u00f3digo Rust. Um truque semelhante foi implementado em a adi\u00e7\u00e3o<\/a><\/noindex> ao n\u00facleo do suporte experimental para compila\u00e7\u00e3o no Clang em modo de otimiza\u00e7\u00f5es durante a liga\u00e7\u00e3o (LTO, Link Time Optimization), ap\u00f3s o qual est\u00e1 previsto adicionar tamb\u00e9m suporte<\/a><\/noindex> compila\u00e7\u00f5es com prote\u00e7\u00e3o contra fluxo de controle (CFI<\/a><\/noindex>, Control-Flow Integrity).<\/p>\n

Linus n\u00e3o concordou e expressou preocupa\u00e7\u00e3o de que o suporte inicial para Rust ficaria sem testes de compila\u00e7\u00e3o e teria o risco de ficar preso em um p\u00e2ntano, onde um pequeno grupo de desenvolvedores interessados no projeto testam o funcionamento do c\u00f3digo apenas em suas condi\u00e7\u00f5es espec\u00edficas, adicionando coisas erradas, pois permanecem ocultas e n\u00e3o aparecem nos testes do n\u00facleo em outros ambientes. <\/p>\n

Na opini\u00e3o de Linus, o primeiro driver Rust deve ser oferecido em um formato simples, onde as falhas sejam \u00f3bvias e f\u00e1ceis de detectar. Para simplificar os testes, ele recomendou proceder como na verifica\u00e7\u00e3o das vers\u00f5es do compilador C e dos flags suportados \u2014 verificar a presen\u00e7a do compilador Rust no sistema e incluir seu suporte caso esteja instalado. <\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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