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#include <sys/mman.h>
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#include <sys/mman.h>
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#include <as.h>
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#include <as.h>
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#include <unistd.h>
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#include <unistd.h>
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void *mmap(void  *start, size_t length, int prot, int flags, int fd, off_t offset)
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void *mmap(void  *start, size_t length, int prot, int flags, int fd,
- 
 
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    off_t offset)
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{
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{
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    if (!start)
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    if (!start)
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        start = as_get_mappable_page(length, 0);
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        start = as_get_mappable_page(length);
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//  if (! ((flags & MAP_SHARED) ^ (flags & MAP_PRIVATE)))
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//  if (! ((flags & MAP_SHARED) ^ (flags & MAP_PRIVATE)))
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//      return MAP_FAILED;
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//      return MAP_FAILED;
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    if (! (flags & MAP_ANONYMOUS))
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    if (! (flags & MAP_ANONYMOUS))
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        return MAP_FAILED;
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        return MAP_FAILED;