{"id":108843,"date":"2023-06-05T09:10:29","date_gmt":"2023-06-05T07:10:30","guid":{"rendered":"https:\/\/prohoster.info\/?p=108843"},"modified":"2023-06-05T17:18:09","modified_gmt":"2023-06-05T15:18:09","slug":"pervyj-vypusk-blink-vysokoproizvoditelnogo-emulyatora-sistem-x86-64","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/pervyj-vypusk-blink-vysokoproizvoditelnogo-emulyatora-sistem-x86-64","title":{"rendered":"F\u00f8rste udgave af Blink, en h\u00f8jtydende emulator af x86-64 systemer","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Den f\u00f8rste betydelige udgivelse af projektet Blink er offentliggjort. Det udvikler en emulator for x86-64 processorer, som g\u00f8r det muligt at k\u00f8re b\u00e5de statisk og dynamisk kompilerede Linux-applikationer i en virtuel maskine med en simuleret processor. Med Blink kan Linux-programmer, der er kompileret til x86-64 arkitekturen, k\u00f8re p\u00e5 andre POSIX-kompatible operativsystemer (macOS, FreeBSD, NetBSD, OpenBSD, Cygwin) og p\u00e5 hardware med en anden arkitektur (x86, ARM, RISC-V, MIPS, PowerPC, s390x). Koden for projektet er skrevet i C (ANSI C11) og distribueres under ISC-licensen. Den eneste afh\u00e6ngighed er libc (POSIX.1-2017). <\/p>\n

Blink minder om qemu-x86_64 hvad ang\u00e5r funktionalitet, men adskiller sig fra QEMU ved en mere kompakt udf\u00f8relse og en betydelig pr\u00e6stationsfor\u00f8gelse. For eksempel fylder den eksekverbare fil Blink kun 221 KB (ved en reduceret version \u2014 115 KB) i stedet for 4 MB for qemu-x86_64, og i nogle tests, s\u00e5som k\u00f8rsel i GCC-emulatoren og udf\u00f8relse af matematiske operationer, overg\u00e5r den QEMU med cirka det dobbelte. <\/p>\n

For at sikre h\u00f8j ydeevne anvendes en JIT-kompilator, der on-the-fly konverterer kildetekst instruktioner til maskinkode for m\u00e5leplatformen. Der underst\u00f8ttes direkte k\u00f8rsel af eksekverbare filer i formaterne ELF, PE (Portable Executables) og bin (Flat executable), som er kompileret med standard C-bibliotekerne Cosmopolitan, Glibc og Musl. Der er implementeret indbygget support for 180 Linux-systemopkald og emulering af omkring 600 x86 processorinstruktioner, der d\u00e6kker s\u00e6t af instruktioner i8086, i386, SSE2, x86_64, SSE3, SSSE3, CLMUL, POPCNT, ADX, BMI2 (MULX, PDEP, PEXT), X87, RDRND, RDSEED og RDTSCP. <\/p>\n

Derudover udvikles v\u00e6rkt\u00f8jet blinkenlights p\u00e5 basis af Blink, som tilbyder en gr\u00e6nseflade til visualisering af programudf\u00f8relsen og analyse af hukommelsesindholdet. V\u00e6rkt\u00f8jet kan bruges som en debugger, der underst\u00f8tter omvendt debugging (Reverse-Debugging) og lader brugeren bev\u00e6ge sig tilbage i udf\u00f8relseshistorikken og vende tilbage til et tidligere punkt. Projektet er udviklet af skaberen af s\u00e5danne udviklinger som C-biblioteket Cosmopolitan, porten af isoleringsmekanismen pledge til Linux og systemet for universelle eksekverbare filer Redbean.

\"F\u00f8rste<\/center>
\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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