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#!/bin/bash
# Copyright (C) 2018 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Get backtraces for a process.
if [[ $1 =~ ^[0-9]+$ ]] ; then
PID="$1"
elif [ "$1" ] ; then
# Try --exact first, and fallback to nonexact if we find nothing.
PIDLIST="$(pid --exact $1 || pid $1)"
if [[ $PIDLIST =~ ^[0-9]+$ ]] ; then
PID="$PIDLIST"
elif [ "$PIDLIST" ] ; then
echo "more than one process: $1"
else
echo "no such process: $1"
fi
else
echo "usage: stacks [pid|process name]"
fi
if [ "$PID" ] ; then
# Use `debuggerd -j` on java processes.
if adb shell readlink /proc/$PID/exe | egrep -q '^/system/bin/app_process' ; then
# But not the zygote.
if ! adb shell cat /proc/$PID/cmdline | egrep -q '^zygote'; then
adb shell debuggerd -j $PID
exit $?
fi
fi
adb shell debuggerd -b $PID
fi
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