Do not use $ANDROID_TOOLCHAIN set by envsetup.sh.

build/android/gdb_apk

-#!/bin/bash
-#
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-#
-# Attach gdb to a running android application.  Similar to ndk-gdb.
-# Run with --annotate=3 if running under emacs (M-x gdb).
-#
-# By default it is used to debug content shell, if it is used to
-# debug other piceces, '-p' and '-l' options are needed.
-# For *unittests_apk (like base_unittests_apk), run with:
-#  "gdb_apk -p org.chromium.native_test -l out/Release/lib.target -r"
-
-# Run a command through adb shell, strip the extra \r from the output
-# and return the correct status code to detect failures. This assumes
-# that the adb shell command prints a final \n to stdout.
-# args: command to run
-# Prints the command's stdout on stdout
-# Returns the command's status
-# Note: the command's stderr is lost
-adb_shell () {
-  local TMPOUT="$(mktemp)"
-  local LASTLINE RET
-  local ADB=${ADB:-adb}
-
-  # The weird sed rule is to strip the final \r on each output line
-  # Since 'adb shell' never returns the command's proper exit/status code,
-  # we force it to print it as '%%<status>' in the temporary output file,
-  # which we will later strip from it.
-  $ADB shell $@ ";" echo "%%\$?" 2>/dev/null | sed -e 's![[:cntrl:]]!!g' > $TMPOUT
-  # Get last line in log, which contains the exit code from the command
-  LASTLINE=$(sed -e '$!d' $TMPOUT)
-  # Extract the status code from the end of the line, which must be '%%<code>'
-  RET=$(echo "$LASTLINE" | awk '{ if (match($0, "%%[0-9]+$")) { print substr($0,RSTART+2); } }')
-  # Remove the status code from the last line. Note that this may result in an empty line
-  LASTLINE=$(echo "$LASTLINE" | awk '{ if (match($0, "%%[0-9]+$")) { print substr($0,1,RSTART-1); } }')
-  # The output itself: all lines except the status code
-  sed -e '$d' $TMPOUT && echo -n "$LASTLINE"
-  # Remove temp file
-  rm -f $TMPOUT
-  # Exit with the appropriate status
-  return $RET
-}
-
-adb=$(which adb)
-if [[ "$adb" = "" ]] ; then
-  echo "Need adb in your path"
-  exit 1
-fi
-
-usage() {
-  echo "usage: ${0##*/} [-p package_name] [-l shared_lib_dir] [-g gdb] [-r]"
-  echo "-p package_name     the android APK package to be debugged"
-  echo "-l shared_lib_dir   directory containes native shared library"
-  echo "-g gdb_args         agruments for gdb, eg: -g '-n -write'"
-  echo "-r                  the target device is rooted"
-}
-
-process_options() {
-  local OPTNAME OPTIND OPTERR OPTARG
-  while getopts ":p:l:g:r" OPTNAME; do
-    case "$OPTNAME" in
-      p)
-        package_name="$OPTARG"
-        ;;
-      l)
-        shared_lib_dir="$OPTARG"
-        ;;
-      g)
-        gdb_args="$OPTARG"
-                ;;
-      r)
-        rooted_phone=1
-        ;;
-      \:)
-        echo "'-$OPTARG' needs an argument."
-        usage
-        exit 1
-        ;;
-      *)
-        echo "invalid command line option: $OPTARG"
-        usage
-        exit 1
-        ;;
-    esac
-  done
-
-  if [ $# -ge ${OPTIND} ]; then
-    eval echo "Unexpected command line argument: \${${OPTIND}}"
-    usage
-    exit 1
-  fi
-}
-
-rooted_phone=0
-
-root=$(dirname $0)/../..
-package_name=org.chromium.content_shell_apk
-shared_lib_dir=$root/out/${BUILDTYPE:-Debug}/lib.target
-gdb_args=''
-
-#process options
-process_options "$@"
-echo "Debug package $package_name"
-echo "Assume native shared library is under $shared_lib_dir"
-
-data_dir=/data/data/$package_name
-gdb_server_on_device=$data_dir/lib/gdbserver
-
-# Kill any running gdbserver
-pid=$(adb shell ps | awk '/gdbserver/ {print $2}')
-if [[ "$pid" != "" ]] ; then
-  if [[ $rooted_phone -eq 1 ]] ; then
-    adb shell kill $pid
-  else
-    adb shell run-as $package_name kill $pid
-  fi
-fi
-
-pid=$(adb_shell ps | awk "/$package_name$/ {print \$2}")
-if [[ "$pid" = "" ]] ; then
-  echo "No $package_name running?"
-  echo "Try this: adb shell am start -a android.intent.action.VIEW " \
-    "-n $package_name/.SomethingActivity (Something might be ContentShell)"
-  exit 2
-fi
-
-no_gdb_server=$(adb shell ls $gdb_server_on_device | grep 'No such file')
-if [[ "$no_gdb_server" != "" ]] ; then
-  echo "No gdb server on device at $gdb_server_on_device"
-  echo "Please install a debug build."
-  exit 3
-fi
-
-if [[ $rooted_phone -eq 1 ]] ; then
-  adb shell $gdb_server_on_device :4321 --attach $pid &
-  adb forward tcp:4321 tcp:4321
-else
-  adb shell run-as $package_name lib/gdbserver +debug-socket --attach $pid &
-  adb forward tcp:4321 localfilesystem:$data_dir/debug-socket
-fi
-sleep 2
-
-# Pull app_process and C libraries from device if needed
-app_process=${shared_lib_dir}/app_process
-if [[ ! -f ${app_process} ]] ; then
-  adb pull /system/bin/app_process ${app_process}
-  adb pull /system/lib/libc.so ${shared_lib_dir}
-fi
-
-# gdb commands
-cmdfile=$(mktemp /tmp/gdb_android_XXXXXXXX)
-cat >$cmdfile<<EOF
-# set solib-absolute-prefix null
-set solib-search-path ${shared_lib_dir}
-file ${app_process}
-target remote :4321
-EOF
-
-gdb=$(echo $ANDROID_TOOLCHAIN/*gdb)
-if [[ ! -f ${gdb} ]] ; then
-  echo "Wow no gdb in env var ANDROID_TOOLCHAIN which is $ANDROID_TOOLCHAIN"
-  exit 4
-else
-  echo Using $gdb
-fi
-
-# ${gdb} -x $cmdfile $* $app_process
-${gdb} -x $cmdfile $gdb_args
-rm $cmdfile