Merge "Writes cpu variant information to dev/"

Former-commit-id: cfd0b6c19d733e2cfb8dc91c2e77b800eb4df545
aosp-ginkgo · Nov 19, 2018 · 1f666d8 · 1f666d8
2 parents c60da69 + 8773309
commit 1f666d8
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/rootdir/init.rc b/rootdir/init.rc
@@ -269,6 +269,12 @@ on init
     # that they can be chown'd to system:system later on boot
     write /sys/class/leds/vibrator/trigger "transient"
 
+    # This is used by Bionic to select optimized routines.
+    write /dev/cpu_variant:${ro.bionic.arch} ${ro.bionic.cpu_variant}
+    chmod 0444 /dev/cpu_variant:${ro.bionic.arch}
+    write /dev/cpu_variant:${ro.bionic.2nd_arch} ${ro.bionic.2nd_cpu_variant}
+    chmod 0444 /dev/cpu_variant:${ro.bionic.2nd_arch}
+
     # Setup APEX mount point and its security context
     mount tmpfs tmpfs /apex nodev noexec nosuid
     chmod 0755 /apex