{"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\/pt\/blog\/news\/pervyj-vypusk-blink-vysokoproizvoditelnogo-emulyatora-sistem-x86-64","title":{"rendered":"Primeiro lan\u00e7amento do Blink, emulador de sistemas x86-64 de alto desempenho","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Foi publicado o primeiro lan\u00e7amento significativo do projeto Blink, que desenvolve um emulador de processadores x86-64, permitindo a execu\u00e7\u00e3o de aplicativos Linux compilados de forma est\u00e1tica e din\u00e2mica em uma m\u00e1quina virtual com um processador emulado. Com o Blink, programas Linux compilados para a arquitetura x86-64 podem ser executados em outros sistemas operacionais compat\u00edveis com POSIX (macOS, FreeBSD, NetBSD, OpenBSD, Cygwin) e em hardware com outras arquiteturas (x86, ARM, RISC-V, MIPS, PowerPC, s390x). O c\u00f3digo do projeto \u00e9 escrito na linguagem C (ANSI C11) e \u00e9 distribu\u00eddo sob a licen\u00e7a ISC. A \u00fanica depend\u00eancia necess\u00e1ria \u00e9 apenas o libc (POSIX.1-2017). <\/p>\n

Em termos de funcionalidade, o Blink lembra a equipe qemu-x86_64, mas se diferencia do QEMU por sua execu\u00e7\u00e3o mais compacta e um ganho significativo de desempenho. Por exemplo, o arquivo execut\u00e1vel do Blink ocupa apenas 221 KB (em uma vers\u00e3o reduzida \u2014 115 KB), em vez de 4 MB do qemu-x86_64, e em alguns testes de desempenho, como a execu\u00e7\u00e3o no emulador GCC e a realiza\u00e7\u00e3o de opera\u00e7\u00f5es matem\u00e1ticas, supera o QEMU por aproximadamente o dobro. <\/p>\n

Para garantir alta performance, \u00e9 utilizado um compilador JIT que transforma dinamicamente as instru\u00e7\u00f5es de origem em c\u00f3digo de m\u00e1quina para a plataforma alvo. Suporte \u00e9 oferecido para a execu\u00e7\u00e3o direta de arquivos execut\u00e1veis nos formatos ELF, PE (Portable Executables) e bin (Flat executable), compilados com as bibliotecas padr\u00e3o C Cosmopolitan, Glibc e Musl. O suporte embutido para 180 chamadas de sistema Linux e a emula\u00e7\u00e3o de cerca de 600 instru\u00e7\u00f5es de processador x86 est\u00e3o implementados, abrangendo os conjuntos de instru\u00e7\u00f5es i8086, i386, SSE2, x86_64, SSE3, SSSE3, CLMUL, POPCNT, ADX, BMI2 (MULX, PDEP, PEXT), X87, RDRND, RDSEED e RDTSCP. <\/p>\n

Adicionalmente, uma ferramenta chamada blinkenlights est\u00e1 sendo desenvolvida sobre a base do Blink, fornecendo uma interface para visualizar o progresso da execu\u00e7\u00e3o do programa e analisar o conte\u00fado da mem\u00f3ria. A ferramenta pode ser utilizada como um depurador, suportando o modo de depura\u00e7\u00e3o reversa (Reverse-Debugging) que permite navegar de volta na hist\u00f3ria de execu\u00e7\u00e3o e retornar a um ponto que j\u00e1 foi executado anteriormente. O projeto \u00e9 desenvolvido pelo autor de inova\u00e7\u00f5es como a biblioteca C Cosmopolitan, a porta do mecanismo de isolamento pledge para Linux e o sistema de arquivos execut\u00e1veis universais Redbean.

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

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\u044d\u043c\u0443\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u043c \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u043c. \u041f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 Blink c\u043e\u0431\u0440\u0430\u043d\u043d\u044b\u0435 \u0434\u043b\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b x86-64 Linux-\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u0432 \u0434\u0440\u0443\u0433\u0438\u0445 POSIX-\u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 (macOS, FreeBSD, NetBSD, OpenBSD, Cygwin) \u0438 \u043d\u0430 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0438 \u0441 \u0434\u0440\u0443\u0433\u043e\u0439 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 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