commit c5fe1c89628cf294c0de1b0366992a17ad179c31
author Roman Kiryanov <rkir@google.com> Fri Feb 28 09:19:41 2020 -0800
committer Roman Kiryanov <rkir@google.com> Fri Feb 28 20:28:15 2020 -0800
tree 84ade837b586f1a071b1762a7f43df0ff63fd3bb
parent c376fe3f9f367856491bed772fadb4fa1d4c34c7

Fix mount of tracefs

A recent kernel update disabled debugfs. This means we can no longer
rely on the mount of debugfs to implicitly mount tracefs under
/sys/kernel/tracing. Do it explicitly.

Bug: 150447503
Bug: 147493341
Test: ls /sys/kernel/tracing | wc -l
Test: 34
Signed-off-by: Roman Kiryanov <rkir@google.com>
Merged-In: I3ed226d6bfc8b393acfc0e9c84726d5e2dd86db0
Change-Id: Iafcad2d60f3ee24bfcbc81cfda6ac050e548585f

init.goldfish.rc

diff --git a/init.goldfish.rc b/init.goldfish.rc
index bc91e2f..420b21b 100644
--- a/init.goldfish.rc
+++ b/init.goldfish.rc
@@ -1,6 +1,6 @@
 
 on early-init
-    mount debugfs debugfs /sys/kernel/debug mode=755
+    mount tracefs tracefs /sys/kernel/tracing
 
 on init
 

init.ranchu.rc

diff --git a/init.ranchu.rc b/init.ranchu.rc
index 300d8c7..52d0352 100644
--- a/init.ranchu.rc
+++ b/init.ranchu.rc
@@ -2,7 +2,7 @@
     mount_all /vendor/etc/fstab.ranchu
 
 on early-init
-    mount debugfs debugfs /sys/kernel/debug mode=755
+    mount tracefs tracefs /sys/kernel/tracing
     mount proc proc /proc remount hidepid=2,gid=3009
 
 on init