{"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\/it\/blog\/novosti-interneta\/pervyj-vypusk-blink-vysokoproizvoditelnogo-emulyatora-sistem-x86-64","title":{"rendered":"Primo rilascio di Blink, un emulatore ad alte prestazioni per sistemi x86-64","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00c8 stato pubblicato il primo importante aggiornamento del progetto Blink, che sviluppa un emulatore di processori x86-64, consentendo di eseguire applicazioni Linux compilate staticamente e dinamicamente in una macchina virtuale con processore emulato. Con Blink, le applicazioni Linux compilate per l'architettura x86-64 possono essere eseguite su altri sistemi operativi compatibili con POSIX (macOS, FreeBSD, NetBSD, OpenBSD, Cygwin) e su hardware con un'architettura diversa (x86, ARM, RISC-V, MIPS, PowerPC, s390x). Il codice del progetto \u00e8 scritto in C (ANSI C11) ed \u00e8 distribuito con licenza ISC. L'unica dipendenza richiesta \u00e8 libc (POSIX.1-2017). <\/p>\n

Per funzionalit\u00e0, Blink ricorda il comando qemu-x86_64, ma si distingue da QEMU per una realizzazione pi\u00f9 compatta e un notevole aumento delle prestazioni. Ad esempio, il file eseguibile Blink occupa solo 221 KB (versione ridotta \u2014 115 KB) rispetto ai 4 MB di qemu-x86_64, e in alcune prove di prestazione, come l'esecuzione su un emulatore GCC e l'esecuzione di operazioni matematiche, supera QEMU di circa il doppio. <\/p>\n

Per garantire elevate prestazioni, viene utilizzato un compilatore JIT che trasforma le istruzioni sorgente in codice macchina per la piattaforma target in tempo reale. Supporta l'esecuzione diretta in un emulatore di file eseguibili nei formati ELF, PE (Portable Executables) e bin (Flat executable), compilati con le librerie standard C Cosmopolitan, Glibc e Musl. \u00c8 implementato il supporto integrato per 180 chiamate di sistema Linux e l'emulazione di circa 600 istruzioni del processore x86, coprendo i set di istruzioni i8086, i386, SSE2, x86_64, SSE3, SSSE3, CLMUL, POPCNT, ADX, BMI2 (MULX, PDEP, PEXT), X87, RDRND, RDSEED e RDTSCP. <\/p>\n

In aggiunta, si sta sviluppando su base Blink l'utilit\u00e0 blinkenlights, che fornisce un'interfaccia per visualizzare il progresso dell'esecuzione del programma e analizzare il contenuto della memoria. L'utilit\u00e0 pu\u00f2 essere utilizzata come debugger, supportando la modalit\u00e0 di debug inverso (Reverse-Debugging) e consentendo di tornare indietro nella storia dell'esecuzione e di tornare a un punto gi\u00e0 eseguito. Il progetto \u00e8 portato avanti dall'autore di sviluppi come la libreria C Cosmopolitan, il porting del meccanismo di isolamento pledge per Linux e il sistema di file eseguibili universali Redbean.

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

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