{"id":140018,"date":"2025-08-04T11:12:07","date_gmt":"2025-08-04T09:12:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-clang-namereny-dobavit-rezhim-usilennoj-bezopasnosti"},"modified":"2025-08-04T11:12:07","modified_gmt":"2025-08-04T09:12:07","slug":"v-clang-namereny-dobavit-rezhim-usilennoj-bezopasnosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/v-clang-namereny-dobavit-rezhim-usilennoj-bezopasnosti","title":{"rendered":"W Clang planuj\u0105 doda\u0107 tryb wzmocnionej bezpiecze\u0144stwa","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Aaron Ballman, g\u0142\u00f3wny kompilator Clang i uczestnik grupy roboczej WG21 (C++) oraz WG14 (C), rozpocz\u0105\u0142 dyskusj\u0119 na temat dodania trybu wzmacniania bezpiecze\u0144stwa do kompilatora Clang. Nowy tryb pozwoli na jednoczesne aktywowanie zestawu opcji maj\u0105cych na celu zwi\u0119kszenie ochrony, podobnie jak dodana w GCC 14 flaga &#171;-fhardened&#187;, przy kt\u00f3rej w\u0142\u0105czane s\u0105 opcje &#171;-D_FORTIFY_SOURCE=3 -D_GLIBCXX_ASSERTIONS -ftrivial-auto-var-init=zero -fPIE -pie -Wl,-z,relro,-z,now -fstack-protector-strong -fstack-clash-protection -fcf-protection=full&#187;.     <\/p>\n<p>Zauwa\u017cono, \u017ce obecnie trwaj\u0105 prace nad dodaniem mo\u017cliwo\u015bci zwi\u0119kszenia bezpiecze\u0144stwa do standard\u00f3w C i C++, ale proces ten nie jest szybki, mimo \u017ce w Clang ju\u017c dost\u0119pne s\u0105 poszczeg\u00f3lne opcje z dodatkowymi mechanizmami ochrony. Wdra\u017cane metody ochrony cz\u0119sto prowadz\u0105 do okre\u015blonych niekompatybilno\u015bci z istniej\u0105cym kodem lub naruszenia ABI, co uniemo\u017cliwia ich domy\u015blne w\u0142\u0105czenie. Ponadto, takie opcje s\u0105 rozproszone (flagi do zarz\u0105dzania kompilacj\u0105, flagi generowania instrukcji maszynowych zwi\u0105zane z architekturami sprz\u0119towymi, ostrze\u017cenia, tryby diagnostyczne, makra), s\u0142abo udokumentowane i umykaj\u0105 wielu programistom.       <\/p>\n<p>Jedna konfiguracja ujednolici w\u0142\u0105czanie powi\u0105zanych z bezpiecze\u0144stwem opcji i upro\u015bci ich zastosowanie. Rozwa\u017cane jest kilka opcji aktywacji trybu wzmocnionego bezpiecze\u0144stwa, na przyk\u0142ad aktywacja przez flag\u0119 &#171;-fhardened&#187;, zestaw ustawie\u0144 &#171;&#8212;config=hardened&#187;, oddzielny sterownik (clang &#8212;driver-mode) lub oddzielne opcje &#171;-fhardened, -mhardened i -Whardened&#187;, zwi\u0105zane z kompilacj\u0105, generowaniem kodu i zg\u0142aszaniem ostrze\u017ce\u0144. Tryb mo\u017ce obejmowa\u0107:  <\/p>\n<ul>\n<li class=\"l\"> Mo\u017cliwo\u015bci kompilatora: -ftrivial-auto-var-init, -fPIE, -fcf-protection itd.\n<li class=\"l\"> Mo\u017cliwo\u015bci zwi\u0105zane z generowaniem kodu dla platform docelowych: -mspeculative-load-hardening, -mlvi-hardening itd.\n<li class=\"l\"> Ostrze\u017cenia: -Wall, -Wextra, -Werror=return-type itd.\n<li class=\"l\"> Tryby wzmacniania bezpiecze\u0144stwa w standardowej bibliotece funkcji.\n<li class=\"l\"> Makra: _FORTIFY_SOURCE, _GLIBCXX_ASSERTIONS itd.\n<li class=\"l\"> Wymaganie do wyra\u017anego wyboru u\u017cywanego standardu j\u0119zyka.\n<li class=\"l\"> Odmowa kompilacji kodu z u\u017cyciem przestarza\u0142ych standard\u00f3w C89 i C++98.\n<li class=\"l\"> Przekazywanie dodatkowych flag do \u0142\u0105cznika, na przyk\u0142ad w celu w\u0142\u0105czenia randomizacji adres\u00f3w.  <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63675\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0410\u0430\u0440\u043e\u043d \u0411\u0430\u043b\u043b\u043c\u0430\u043d (Aaron Ballman), \u0433\u043b\u0430\u0432\u043d\u044b\u0439 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0439 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440 Clang \u0438 \u0443\u0447\u0430\u0441\u0442\u043d\u0438\u043a \u043a\u043e\u043c\u0430\u043d\u0434 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 WG21 (C++) \u0438 WG14 (C), \u043d\u0430\u0447\u0430\u043b \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u0435 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440 Clang \u0440\u0435\u0436\u0438\u043c\u0430 \u0443\u0441\u0438\u043b\u0435\u043d\u0438\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u041d\u043e\u0432\u044b\u0439 \u0440\u0435\u0436\u0438\u043c \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442 \u0440\u0430\u0437\u043e\u043c \u0430\u043a\u0442\u0438\u0432\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043d\u0430\u0431\u043e\u0440 \u043e\u043f\u0446\u0438\u0439 \u0434\u043b\u044f \u0443\u0441\u0438\u043b\u0435\u043d\u0438\u044f \u0437\u0430\u0449\u0438\u0442\u044b \u043f\u043e \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0438 \u0441 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u043c \u0432 GCC 14 \u0444\u043b\u0430\u0433\u043e\u043c &#171;-fhardened&#187;, \u043f\u0440\u0438 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442\u0441\u044f \u043e\u043f\u0446\u0438\u0438 &#171;-D_FORTIFY_SOURCE=3 -D_GLIBCXX_ASSERTIONS -ftrivial-auto-var-init=zero -fPIE -pie [&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-140018","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=\"\u0410\u0430\u0440\u043e\u043d \u0411\u0430\u043b\u043b\u043c\u0430\u043d (Aaron Ballman), \u0433\u043b\u0430\u0432\u043d\u044b\u0439 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0439 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440 Clang \u0438 \u0443\u0447\u0430\u0441\u0442\u043d\u0438\u043a \u043a\u043e\u043c\u0430\u043d\u0434 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 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