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# 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.warmup_time = 5
self._adb = adb
if self._adb.root():
self._adb.remount()
self._initial_ASLR = \
self._adb.check('cat /proc/sys/kernel/randomize_va_space')
def __enter__(self):
self._adb.shell('\n'.join([
# turn on airplane mode.
'''
settings put global airplane_mode_on 1''',
# disable GPS.
'''
for MODE in gps wifi network; do
settings put secure location_providers_allowed -$MODE
done''']))
if self._adb.is_root():
self._adb.shell('\n'.join([
# disable bluetooth, wifi, and mobile data.
'''
service call bluetooth_manager 8
svc wifi disable
svc data disable''',
# kill the gui.
'''
setprop ctl.stop media
setprop ctl.stop zygote
setprop ctl.stop surfaceflinger
setprop ctl.stop drm''',
# disable ASLR
'''
echo 0 > /proc/sys/kernel/randomize_va_space''']))
else:
print("WARNING: no adb root access; results may be unreliable.",
file=sys.stderr)
return Hardware.__enter__(self)
def __exit__(self, exception_type, exception_value, traceback):
Hardware.__exit__(self, exception_type, exception_value, traceback)
if self._adb.is_root():
self._adb.shell('\n'.join([
# restore ASLR.
'''
echo %s > /proc/sys/kernel/randomize_va_space''' % self._initial_ASLR,
# revive the gui.
'''
setprop ctl.start drm
setprop ctl.start surfaceflinger
setprop ctl.start zygote
setprop ctl.start media''']))
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 [ ! -d $THERMALDIR ]; then
exit
fi
for ZONE in $(cd $THERMALDIR; echo thermal_zone*); do
cd $THERMALDIR/$ZONE
if [ ! -e mode ] || grep -Fxqv enabled mode || [ ! -e trip_point_0_temp ]; then
continue
fi
TEMP=$(cat temp)
TRIPPOINT=trip_point_0_temp
if [ $TEMP -le $(cat $TRIPPOINT) ]; then
echo "$ZONE ($(cat type)): temp=$TEMP <= $TRIPPOINT=$(cat $TRIPPOINT)" 1>&2
else
let i=1
while [ -e trip_point_${i}_temp ] &&
[ $TEMP -gt $(cat trip_point_${i}_temp) ]; do
TRIPPOINT=trip_point_${i}_temp
let i=i+1
done
echo "$ZONE ($(cat type)): temp=$TEMP > $TRIPPOINT=$(cat $TRIPPOINT)" 1>&2
fi
done''')
Hardware.print_debug_diagnostics(self)
def sleep(self, sleeptime):
Hardware.sleep(self, sleeptime)
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