On 12/06/2016 07:54 PM, Yury Norov wrote:
3. Introduce new mmap64() syscall like this: sys_mmap64(void *addr, size_t len, int prot, int flags, int fd, struct off_pair *off); (The pointer here because otherwise we have 7 args, if simply pass off_hi and off_lo in registers.)
I would prefer a batched mmap/munmap/mremap/mprotect/madvise interface, so that VM changes can be coalesced and the output reduced. This interface could then be used to implement mmap on 32-bit architectures as well because the offset restrictions would not apply there.
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