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2 No-MMU memory mapping support
5 The kernel has limited support for memory mapping under no-MMU conditions, such
13 ptrace() work. Under uClinux there is no fork(), and clone() must be supplied
16 The behaviour is similar between the MMU and no-MMU cases, but not identical;
24 	In the no-MMU case: VM regions backed by arbitrary contiguous runs of
31 	the no-MMU case doesn't support these, behaviour is identical to
39 	In the no-MMU case:
56 	   are visible in other processes (no MMU protection), but should not
63 	on writes to the file underneath that page no longer get reflected into
66 	In the no-MMU case: works much like the non-PROT_WRITE case, except
75 	In the no-MMU case: not supported.
81 	In the no-MMU case: The filesystem providing the memory-backed file
92 	In the no-MMU case: As for memory backed regular files, but the
101 	In the no-MMU case: The character device driver may choose to honour
108 Further notes on no-MMU MMAP
133      In the no-MMU case, however, anonymous mappings are backed by physical
148      visible through /proc/maps in no-MMU mode.
151      /proc/<pid>/maps in no-MMU mode.
180 No-MMU mremap
188 MREMAP_FIXED is not supported, though it is ignored if there's no change of