最小化JIT示例(仅限Intel x86+Windows)

#include <Windows.h>
#include <cstdint>
#include <cstring>
#define BACK_FILL (0) int main() {
char* native = (char*)VirtualAlloc(NULL, 1024, MEM_COMMIT | MEM_RESERVE,
PAGE_EXECUTE_READWRITE);
char code[] = {0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77,
0x6f, 0x72, 0x6c, 0x64, 0x00, 0xff, 0xf5,
0x89, 0xe5, 0x68, BACK_FILL, BACK_FILL, BACK_FILL, BACK_FILL,
0xff, 0x95, 0x08, 0x00, 0x00, 0x00, 0x81,
0xc4, 0x04, 0x00, 0x00, 0x00, 0x8f, 0xc5,
0xc3, 0x00};
memcpy(native, code, sizeof(code) / sizeof(char));
*(int32_t*)(native + 17) = (int32_t)native;
((void (*)(int (*)(const char*, ...)))(native + 12))(&printf);
VirtualFree(native, 0, MEM_RELEASE);
getchar();
return 0;
}
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