4e50d0247b
/proc/self/fd is not available when PR_DUMPABLE is set to 0 which is default for the user builds. It leads to permission denials on readlink. This change fixes the problem by setting PR_DUMPABLE flag to 1 for readlink and restoring it's previous value after the call. Bug: http://b/24912743 Change-Id: I3fd179c5c6b56af96d6a15ee597024ccb15e1a13 (cherry picked from commit cf92738fa5dee24050028a1235f815f2a0fd33b5)