Create a folder to store method traces activated with -Xmethod-trace

Bug: 25612377
Change-Id: I370b858594ccc88c12099b23a0d1aac22acd4969
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 17e87da..7fa4b95 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -327,6 +327,7 @@
     mkdir /data/misc/media 0700 media media
     mkdir /data/misc/boottrace 0771 system shell
     mkdir /data/misc/update_engine 0700 root root
+    mkdir /data/misc/trace 0700 root root
 
     # For security reasons, /data/local/tmp should always be empty.
     # Do not place files or directories in /data/local/tmp
@@ -560,6 +561,9 @@
     seclabel u:r:shell:s0
 
 on property:ro.debuggable=1
+    # Give writes to anyone for the trace folder on debug builds.
+    # The folder is used to store method traces.
+    chmod 0773 /data/misc/trace
     start console
 
 service flash_recovery /system/bin/install-recovery.sh