{"id":37963,"date":"2019-10-31T22:20:52","date_gmt":"2019-10-31T19:20:52","guid":{"rendered":"https:\/\/prohoster.info\/blog\/v-sostav-gcc-prinyat-bekend-dlya-kompilyatsii-v-ebpf\/"},"modified":"2019-10-31T22:20:52","modified_gmt":"2019-10-31T19:20:52","slug":"v-sostav-gcc-prinyat-bekend-dlya-kompilyatsii-v-ebpf","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-sostav-gcc-prinyat-bekend-dlya-kompilyatsii-v-ebpf","title":{"rendered":"GCC-sse on lisatud eBPF-i kompileerimise tagumine osa","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

GCC kompilaatorite komplekti kuulub on vastu v\u00f5etud<\/a><\/noindex> kood, mis kompileerib programme Linuxi tuumasse sisseehitatud bytecode'i t\u00f5lgendamiseks eBPF<\/a><\/noindex>. JIT-kompileerimise kasutamine v\u00f5imaldab kernelil kiirelt t\u00f5lkida bytecode'i masinakeele k\u00e4skudeks, saavutades natiivse koodi j\u00f5udluse. eBPF toe parandused on vastu v\u00f5etud<\/a><\/noindex> on vastu v\u00f5etud haru, mille alusel arendatakse GCC 10 v\u00e4lja.<\/p>\n

Lisaks bytecode'i genereerimise backendile sisaldab GCC ka eBPF jaoks m\u00f5eldud libgcc porti ja ELF-failide loomise t\u00f6\u00f6riistu, mis v\u00f5imaldavad k\u00e4ivitada koodi eBPF virtuaalmasinas, kasutades tuuma poolt pakutavaid loader'eid. eBPF toe parandused GCC-s on ette valmistanud Oracle'i insenerid, kes olid eelnevalt taganud<\/a><\/noindex> eBPF toe GNU binutils'is. Samuti on arendamisel simulaator ja parandused GDB-le, mis v\u00f5imaldavad eBPF programme t\u00f5rkeotsinguks ilma tuumasse laadimata.<\/p>\n

eBPF programme saab m\u00e4\u00e4ratleda C keele osahulga abil, need kompileeritakse ja laaditakse tuuma. Enne t\u00e4itmist kontrollib eBPF t\u00f5lgendaja bytecode'i, et tagada lubatud k\u00e4skude kasutamine ja seadma koodile teatud reeglid (n\u00e4iteks silmade puudumine).
\nAlgselt kasutati eBPF kompileerimiseks Linuxis LLVM-p\u00f5hist t\u00f6\u00f6riistade komplekti. eBPF toe toomine GCC-sse on huvitav, kuna see v\u00f5imaldab kasutada \u00fchte t\u00f6\u00f6riistade komplekti Linuxi tuuma ja eBPF programmide kompileerimiseks ilma t\u00e4iendavate s\u00f5ltuvusteta. <\/p>\n

eBPF programmide vormis saab luua v\u00f5rguoperatsioonide t\u00f6\u00f6tlejaid, filtreerida liiklust, hallata ribalaiust, j\u00e4lgida s\u00fcsteemide t\u00f6\u00f6d, pealt kuulata s\u00fcstemaatilisi kutseid, kontrollida juurdep\u00e4\u00e4su, arvestada s\u00fcndmuste sagedust ja kestust, ning teostada j\u00e4lgimist kasutades kprobes\/uprobes\/tracepoints.<\/p>\n

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

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

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JIT-kompileerimise rakendamine v\u00f5imaldab t\u00f5lkida bytecode'i kiiresti masinakeele k\u00e4skudeks, saavutades natiivse koodi j\u00f5udluse. eBPF toe parandused on vastu v\u00f5etud harusse, mille alusel arendatakse GCC 10. Lisaks bytecode'i genereerimise backendile","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-sostav-gcc-prinyat-bekend-dlya-kompilyatsii-v-ebpf","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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 \u0441\u043e\u0441\u0442\u0430\u0432 GCC \u043f\u0440\u0438\u043d\u044f\u0442 \u0431\u044d\u043a\u0435\u043d\u0434 \u0434\u043b\u044f \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 \u0432 eBPF | ProHoster","og:description":"\u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u043d\u0430\u0431\u043e\u0440\u0430 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