Colin Cross 1d36ee1a6e 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.

(cherry picked from commit fb9b7b436f3ef94385f1b0c55ab81f246f0d96b8)

Change-Id: I6df3afedbfb5d07891b095aa24b78278381a5aaf
2013-06-24 16:35:41 -07:00
2013-06-12 16:37:58 -07:00
2013-03-15 16:12:58 -07:00
2013-03-07 11:51:10 -08:00
2010-03-08 18:04:02 -08:00
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