{"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\/news\/pervyj-vypusk-blink-vysokoproizvoditelnogo-emulyatora-sistem-x86-64","title":{"rendered":"Il 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 significativo rilascio del progetto Blink, che sviluppa un emulatore per processori x86-64, consentendo di eseguire applicazioni Linux compilate staticamente e dinamicamente su una macchina virtuale con un processore emulato. Grazie a 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 architetture hardware diverse (x86, ARM, RISC-V, MIPS, PowerPC, s390x). Il codice del progetto \u00e8 scritto in linguaggio C (ANSI C11) e distribuito sotto licenza ISC. \u00c8 richiesta solo libc (POSIX.1-2017) come dipendenza. <\/p>\n

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

Per garantire elevate prestazioni, viene utilizzato un compilatore JIT, che trasforma al volo le istruzioni sorgente in codice macchina per la piattaforma di destinazione. \u00c8 supportato l'avvio diretto di file eseguibili in formati ELF, PE (Portable Executables) e bin (Flat executable), compilati con le librerie C standard Cosmopolitan, Glibc e Musl. \u00c8 implementato il supporto nativo per 180 chiamate di sistema Linux ed emulazione di circa 600 istruzioni per processori 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, viene sviluppato un utilit\u00e0 basata su Blink chiamata blinkenlights, che fornisce un\u2019interfaccia 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 retrocedere nella cronologia di esecuzione e 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.

\"Il<\/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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