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#include <syscall.h>
#include <errno.h>
#ifndef MLOCK_ONFAULT
#define MLOCK_ONFAULT 1
#endif
#ifndef MCL_ONFAULT
#define MCL_ONFAULT (MCL_FUTURE << 1)
#endif
static int mlock2_(void *start, size_t len, int flags)
{
#ifdef __NR_mlock2
return syscall(__NR_mlock2, start, len, flags);
#else
errno = ENOSYS;
return -1;
#endif
}
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