skpbench: add debug prints for thermal trip points

tools/skpbench/_hardware_android.py

 # Copyright 2016 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from __future__ import print_function
 from _hardware import Hardware
 import sys
 import time
 
 class HardwareAndroid(Hardware):
   def __init__(self, adb):
     Hardware.__init__(self)
-    self.kick_in_time = 5
+    self.warmup_time = 5
     self._adb = adb
     self._is_root = self._adb.attempt_root()
     if self._is_root:
       self._adb.remount()
     self._initial_airplane_mode = None
     self._initial_location_providers = None
     self._initial_ASLR = None
 
   def __enter__(self):
     # turn on airplane mode.
@@ skipping 57 matching lines @@
         settings put secure location_providers_allowed +$PROVIDER
       done''' % self._initial_location_providers)
 
     # restore airplane mode (doesn't seem to work if we killed the gui).
     self._adb.shell('settings put global airplane_mode_on %s' %
                     self._initial_airplane_mode)
 
   def sanity_check(self):
     Hardware.sanity_check(self)
 
+  def print_debug_diagnostics(self):
+    # search for and print thermal trip points that may have been exceeded.
+    self._adb.shell('''\
+      THERMALDIR=/sys/class/thermal
+      if [ -e $THERMALDIR ]; then
+        for ZONE in $(cd $THERMALDIR; echo thermal_zone*); do
+          cd $THERMALDIR/$ZONE
+          if [ -e mode ] && grep -Fxq enabled mode; then
+            TEMP=$(cat temp)
+            TRIPPOINT=
+            let i=0
+            while [ -e trip_point_${i}_temp ] &&
+                  [ $TEMP -gt $(cat trip_point_${i}_temp) ]; do
+              TRIPPOINT=trip_point_${i}_temp
+              let i=i+1
+            done
+            if [ $TRIPPOINT ]; then
+              echo "$ZONE ($(cat type)): temp=$TEMP > $TRIPPOINT=$(cat $TRIPPOINT)"
+            fi
+          fi
+        done
+      fi''')
+
+    Hardware.print_debug_diagnostics(self)
+
   def sleep(self, sleeptime):
     Hardware.sleep(self, sleeptime)