问有可能获得mmap的Linux源代码和MapViewOfFile的Windows源代码吗？

EN

#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>

extern void*  __mmap2(void*, size_t, int, int, int, size_t);

#define  MMAP2_SHIFT  12
void*   mmap( void*  addr,  size_t  size, int  prot, int  flags, int  fd,  long  offset )
{
    if ( offset & ((1UL << MMAP2_SHIFT)-1) ) {
    errno = EINVAL;
    return MAP_FAILED;
  }

    return __mmap2(addr, size, prot, flags, fd, (size_t)offset >> MMAP2_SHIFT);
}

/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>

    .text
    .type __mmap2, @function
    .globl __mmap2
    .align 4

__mmap2:
    pushl   %ebx
    pushl   %ecx
    pushl   %edx
    pushl   %esi
    pushl   %edi
    pushl   %ebp
    mov     28(%esp), %ebx
    mov     32(%esp), %ecx
    mov     36(%esp), %edx
    mov     40(%esp), %esi
    mov     44(%esp), %edi
    mov     48(%esp), %ebp
    movl    $__NR_mmap2, %eax
    int     $0x80
    cmpl    $-129, %eax
    jb      1f
    negl    %eax
    pushl   %eax
    call    __set_errno
    addl    $4, %esp
    orl     $-1, %eax
1:
    popl    %ebp
    popl    %edi
    popl    %esi
    popl    %edx
    popl    %ecx
    popl    %ebx
    ret