Colin Cross fc761f8cc0 bionic: prevent root processes from calling __system_property_add
If a root process other than init calls __system_property_add, which
it should never do, it will break the design assumption that there is
only one mutator.

Pass O_EXCL to open() in map_prop_region_rw to ensure that only one
process ever has the property pages open for write.

Change-Id: I8233bfe0beaa40a5003ad53b98c661536b15f6b7
2013-06-25 13:34:36 -07:00
..
2013-05-14 14:45:02 -07:00
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