{"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\/sv\/blog\/news\/v-clang-namereny-dobavit-rezhim-usilennoj-bezopasnosti","title":{"rendered":"Clang avser att l\u00e4gga till ett f\u00f6rst\u00e4rkningsl\u00e4ge f\u00f6r s\u00e4kerhet.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Aaron Ballman, huvudkompilator f\u00f6r Clang och medlem av WG21 (C++) och WG14 (C) standardutvecklingsteam, har inlett en diskussion om att l\u00e4gga till ett s\u00e4kerhetsf\u00f6rst\u00e4rkningsl\u00e4ge i Clang-kompilatorn. Det nya l\u00e4get kommer att m\u00f6jligg\u00f6ra att en upps\u00e4ttning alternativ f\u00f6r att f\u00f6rb\u00e4ttra skyddet aktiveras p\u00e5 en g\u00e5ng, liknande det flagg som lades till i GCC 14, &#171;-fhardened&#187;, d\u00e4r f\u00f6ljande alternativ aktiveras &#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>Det p\u00e5pekas att det f\u00f6r n\u00e4rvarande p\u00e5g\u00e5r arbete med att l\u00e4gga till s\u00e4kerhetsf\u00f6rst\u00e4rkande funktioner i standarderna C och C++, men denna process \u00e4r inte snabb, eftersom Clang redan erbjuder enskilda alternativ med implementering av ytterligare skyddsmekanismer. De implementerade skyddsmekanismerna leder ofta till separata inkompatibiliteter med befintlig kod eller ABI-brott, vilket hindrar deras aktivering som standard. Dessutom \u00e4r s\u00e5dana alternativ spridda (kompilationsflaggor, signalgenereringsflaggor kopplade till h\u00e5rdvaruarkitekturer, varningsmeddelanden, diagnostikl\u00e4gen, makron), d\u00e5ligt dokumenterade och faller ofta ur m\u00e5nga utvecklares synf\u00e4lt.       <\/p>\n<p>Den enhetliga inst\u00e4llningen standardiserar aktiveringen av s\u00e4kerhetsrelaterade alternativ och f\u00f6renklar deras till\u00e4mpning. Flera alternativ f\u00f6r att aktivera det f\u00f6rst\u00e4rkta s\u00e4kerhetsl\u00e4get \u00f6verv\u00e4gs, till exempel diskuteras aktivering genom flaggan &#171;-fhardened&#187;, en upps\u00e4ttning inst\u00e4llningar &#171;&#8212;config=hardened&#187;, en separat drivrutin (clang &#8212;driver-mode) eller separata alternativ &#171;-fhardened, -mhardened och  -Whardened&#187;, som \u00e4r kopplade till kompilering, kodgenerering och utskrift av varningar. L\u00e4get kan omfatta:  <\/p>\n<ul>\n<li class=\"l\"> Kompilatorns funktioner: -ftrivial-auto-var-init, -fPIE, -fcf-protection etc.\n<li class=\"l\"> Funktioner kopplade till kodgenerering f\u00f6r m\u00e5larplattformer: -mspeculative-load-hardening, -mlvi-hardening etc.\n<li class=\"l\"> Varningar: -Wall, -Wextra, -Werror=return-type etc.\n<li class=\"l\"> S\u00e4kerhetsf\u00f6rst\u00e4rkningsl\u00e4gen i standardbiblioteket f\u00f6r funktioner.\n<li class=\"l\"> Makron: _FORTIFY_SOURCE, _GLIBCXX_ASSERTIONS etc.\n<li class=\"l\"> Krav p\u00e5 tydligt val av vilket spr\u00e5kstandard som anv\u00e4nds.\n<li class=\"l\"> Avslag av att kompilera kod med f\u00f6r\u00e5ldrade standarder C89 och C++98.\n<li class=\"l\"> \u00d6verf\u00f6ring av ytterligare flaggor till l\u00e4nkaren, exempelvis f\u00f6r att inkludera adressrandomisering.  <\/ul>\n<p>K\u00e4lla: <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 5.0.4 - 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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Clang-kompilatorn.","canonical_url":"https:\/\/prohoster.info\/sv\/blog\/news\/v-clang-namereny-dobavit-rezhim-usilennoj-bezopasnosti","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sv_SE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412 Clang \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u044b \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u0440\u0435\u0436\u0438\u043c \u0443\u0441\u0438\u043b\u0435\u043d\u043d\u043e\u0439 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 | ProHoster","og:description":"\u0410\u0430\u0440\u043e\u043d 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