#!/bin/bash
#
# Runner for an individual run-test.

if [[ -z "$ANDROID_BUILD_TOP" ]]; then
  echo 'ANDROID_BUILD_TOP environment variable is empty; did you forget to run `lunch`?'
  exit 1
fi

msg() {
    if [ "$QUIET" = "n" ]; then
        echo "$@"
    fi
}

ANDROID_ROOT="/system"
ANDROID_ART_ROOT="/apex/com.android.art"
ANDROID_I18N_ROOT="/apex/com.android.i18n"
ANDROID_TZDATA_ROOT="/apex/com.android.tzdata"
ARCHITECTURES_32="(arm|x86|none)"
ARCHITECTURES_64="(arm64|x86_64|none)"
ARCHITECTURES_PATTERN="${ARCHITECTURES_32}"
GET_DEVICE_ISA_BITNESS_FLAG="--32"
BOOT_IMAGE=""
CHROOT=
COMPILE_FLAGS=""
DALVIKVM="dalvikvm32"
DEBUGGER="n"
WITH_AGENT=()
DEBUGGER_AGENT=""
WRAP_DEBUGGER_AGENT="n"
DEV_MODE="n"
DEX2OAT_NDEBUG_BINARY="dex2oat"
DEX2OAT_DEBUG_BINARY="dex2oatd"
EXPERIMENTAL=""
FALSE_BIN="false"
FLAGS=""
ANDROID_FLAGS=""
GDB=""
GDB_ARGS=""
GDBSERVER_DEVICE="gdbserver"
GDBSERVER_HOST="gdbserver"
HAVE_IMAGE="y"
HOST="n"
BIONIC="n"
CREATE_ANDROID_ROOT="n"
USE_ZIPAPEX="n"
ZIPAPEX_LOC=""
USE_EXTRACTED_ZIPAPEX="n"
EXTRACTED_ZIPAPEX_LOC=""
INTERPRETER="n"
JIT="n"
INVOKE_WITH=""
IS_JVMTI_TEST="n"
ISA=x86
LIBRARY_DIRECTORY="lib"
TEST_DIRECTORY="nativetest"
MAIN=""
OPTIMIZE="y"
PREBUILD="y"
QUIET="n"
RELOCATE="n"
STRIP_DEX="n"
SECONDARY_DEX=""
TIME_OUT="n"  # "n" (disabled), "timeout" (use timeout), "gdb" (use gdb)
TIMEOUT_DUMPER=signal_dumper
# Values in seconds.
TIME_OUT_EXTRA=0
TIME_OUT_VALUE=
USE_GDB="n"
USE_GDBSERVER="n"
GDBSERVER_PORT=":5039"
USE_JVM="n"
USE_JVMTI="n"
VERIFY="y" # y=yes,n=no,s=softfail
ZYGOTE=""
DEX_VERIFY=""
INSTRUCTION_SET_FEATURES=""
ARGS=""
VDEX_ARGS=""
EXTERNAL_LOG_TAGS="n" # if y respect externally set ANDROID_LOG_TAGS.
DRY_RUN="n" # if y prepare to run the test but don't run it.
TEST_VDEX="n"
TEST_DM="n"
TEST_IS_NDEBUG="n"
APP_IMAGE="y"
JVMTI_STRESS="n"
JVMTI_STEP_STRESS="n"
JVMTI_FIELD_STRESS="n"
JVMTI_TRACE_STRESS="n"
JVMTI_REDEFINE_STRESS="n"
PROFILE="n"
RANDOM_PROFILE="n"
# The normal dex2oat timeout.
DEX2OAT_TIMEOUT="300" # 5 mins
# The *hard* timeout where we really start trying to kill the dex2oat.
DEX2OAT_RT_TIMEOUT="360" # 6 mins
CREATE_RUNNER="n"

# if "y", run 'sync' before dalvikvm to make sure all files from
# build step (e.g. dex2oat) were finished writing.
SYNC_BEFORE_RUN="n"

# When running a debug build, we want to run with all checks.
ANDROID_FLAGS="${ANDROID_FLAGS} -XX:SlowDebug=true"
# The same for dex2oatd, both prebuild and runtime-driven.
ANDROID_FLAGS="${ANDROID_FLAGS} -Xcompiler-option --runtime-arg -Xcompiler-option -XX:SlowDebug=true"
COMPILER_FLAGS="${COMPILER_FLAGS} --runtime-arg -XX:SlowDebug=true"

while true; do
    if [ "x$1" = "x--quiet" ]; then
        QUIET="y"
        shift
    elif [ "x$1" = "x--dex2oat-rt-timeout" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --dex2oat-rt-timeout" 1>&2
            exit 1
        fi
        DEX2OAT_RT_TIMEOUT="$1"
        shift
    elif [ "x$1" = "x--dex2oat-timeout" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --dex2oat-timeout" 1>&2
            exit 1
        fi
        DEX2OAT_TIMEOUT="$1"
        shift
    elif [ "x$1" = "x--jvmti" ]; then
        USE_JVMTI="y"
        IS_JVMTI_TEST="y"
        shift
    elif [ "x$1" = "x-O" ]; then
        TEST_IS_NDEBUG="y"
        shift
    elif [ "x$1" = "x--lib" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --lib" 1>&2
            exit 1
        fi
        LIB="$1"
        shift
    elif [ "x$1" = "x--gc-stress" ]; then
        # Give an extra 20 mins if we are gc-stress.
        TIME_OUT_EXTRA=$((${TIME_OUT_EXTRA} + 1200))
        shift
    elif [ "x$1" = "x--testlib" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --testlib" 1>&2
            exit 1
        fi
        ARGS="${ARGS} $1"
        shift
    elif [ "x$1" = "x--args" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --args" 1>&2
            exit 1
        fi
        ARGS="${ARGS} $1"
        shift
    elif [ "x$1" = "x--compiler-only-option" ]; then
        shift
        option="$1"
        COMPILE_FLAGS="${COMPILE_FLAGS} $option"
        shift
    elif [ "x$1" = "x-Xcompiler-option" ]; then
        shift
        option="$1"
        FLAGS="${FLAGS} -Xcompiler-option $option"
        COMPILE_FLAGS="${COMPILE_FLAGS} $option"
        shift
    elif [ "x$1" = "x--create-runner" ]; then
        CREATE_RUNNER="y"
        shift
    elif [ "x$1" = "x--android-runtime-option" ]; then
        shift
        option="$1"
        ANDROID_FLAGS="${ANDROID_FLAGS} $option"
        shift
    elif [ "x$1" = "x--runtime-option" ]; then
        shift
        option="$1"
        FLAGS="${FLAGS} $option"
        if [ "x$option" = "x-Xmethod-trace" ]; then
            # Method tracing can slow some tests down a lot, in particular
            # 530-checker-lse2.
            TIME_OUT_EXTRA=$((${TIME_OUT_EXTRA} + 1200))
        fi
        shift
    elif [ "x$1" = "x--boot" ]; then
        shift
        BOOT_IMAGE="$1"
        shift
    elif [ "x$1" = "x--relocate" ]; then
        RELOCATE="y"
        shift
    elif [ "x$1" = "x--no-relocate" ]; then
        RELOCATE="n"
        shift
    elif [ "x$1" = "x--prebuild" ]; then
        PREBUILD="y"
        shift
    elif [ "x$1" = "x--compact-dex-level" ]; then
        shift
        COMPILE_FLAGS="${COMPILE_FLAGS} --compact-dex-level=$1"
        shift
    elif [ "x$1" = "x--jvmti-redefine-stress" ]; then
        # APP_IMAGE doesn't really work with jvmti redefine stress
        USE_JVMTI="y"
        APP_IMAGE="n"
        JVMTI_STRESS="y"
        JVMTI_REDEFINE_STRESS="y"
        shift
    elif [ "x$1" = "x--jvmti-step-stress" ]; then
        USE_JVMTI="y"
        JVMTI_STRESS="y"
        JVMTI_STEP_STRESS="y"
        shift
    elif [ "x$1" = "x--jvmti-field-stress" ]; then
        USE_JVMTI="y"
        JVMTI_STRESS="y"
        JVMTI_FIELD_STRESS="y"
        shift
    elif [ "x$1" = "x--jvmti-trace-stress" ]; then
        USE_JVMTI="y"
        JVMTI_STRESS="y"
        JVMTI_TRACE_STRESS="y"
        shift
    elif [ "x$1" = "x--no-app-image" ]; then
        APP_IMAGE="n"
        shift
    elif [ "x$1" = "x--strip-dex" ]; then
        STRIP_DEX="y"
        shift
    elif [ "x$1" = "x--host" ]; then
        HOST="y"
        ANDROID_ROOT="${ANDROID_HOST_OUT}"
        ANDROID_ART_ROOT="${ANDROID_HOST_OUT}/com.android.art"
        ANDROID_I18N_ROOT="${ANDROID_HOST_OUT}/com.android.i18n"
        ANDROID_TZDATA_ROOT="${ANDROID_HOST_OUT}/com.android.tzdata"
        shift
    elif [ "x$1" = "x--bionic" ]; then
        BIONIC="y"
        # We need to create an ANDROID_ROOT because currently we cannot create
        # the frameworks/libcore with linux_bionic so we need to use the normal
        # host ones which are in a different location.
        CREATE_ANDROID_ROOT="y"
        shift
    elif [ "x$1" = "x--runtime-extracted-zipapex" ]; then
        shift
        USE_EXTRACTED_ZIPAPEX="y"
        EXTRACTED_ZIPAPEX_LOC="$1"
        shift
    elif [ "x$1" = "x--runtime-zipapex" ]; then
        shift
        USE_ZIPAPEX="y"
        ZIPAPEX_LOC="$1"
        # TODO (b/119942078): Currently apex does not support
        # symlink_preferred_arch so we will not have a dex2oatd to execute and
        # need to manually provide
        # dex2oatd64.
        DEX2OAT_DEBUG_BINARY="dex2oatd64"
        shift
    elif [ "x$1" = "x--no-prebuild" ]; then
        PREBUILD="n"
        shift
    elif [ "x$1" = "x--no-image" ]; then
        HAVE_IMAGE="n"
        shift
    elif [ "x$1" = "x--secondary" ]; then
        SECONDARY_DEX=":$DEX_LOCATION/$TEST_NAME-ex.jar"
        # Enable cfg-append to make sure we get the dump for both dex files.
        # (otherwise the runtime compilation of the secondary dex will overwrite
        # the dump of the first one).
        FLAGS="${FLAGS} -Xcompiler-option --dump-cfg-append"
        COMPILE_FLAGS="${COMPILE_FLAGS} --dump-cfg-append"
        shift
    elif [ "x$1" = "x--with-agent" ]; then
        shift
        USE_JVMTI="y"
        WITH_AGENT+=("$1")
        shift
    elif [ "x$1" = "x--debug-wrap-agent" ]; then
        WRAP_DEBUGGER_AGENT="y"
        shift
    elif [ "x$1" = "x--debug-agent" ]; then
        shift
        DEBUGGER="agent"
        USE_JVMTI="y"
        DEBUGGER_AGENT="$1"
        TIME_OUT="n"
        shift
    elif [ "x$1" = "x--debug" ]; then
        USE_JVMTI="y"
        DEBUGGER="y"
        TIME_OUT="n"
        shift
    elif [ "x$1" = "x--gdbserver-port" ]; then
        shift
        GDBSERVER_PORT=$1
        shift
    elif [ "x$1" = "x--gdbserver-bin" ]; then
        shift
        GDBSERVER_HOST=$1
        GDBSERVER_DEVICE=$1
        shift
    elif [ "x$1" = "x--gdbserver" ]; then
        USE_GDBSERVER="y"
        DEV_MODE="y"
        TIME_OUT="n"
        shift
    elif [ "x$1" = "x--gdb" ]; then
        USE_GDB="y"
        DEV_MODE="y"
        TIME_OUT="n"
        shift
    elif [ "x$1" = "x--gdb-arg" ]; then
        shift
        gdb_arg="$1"
        GDB_ARGS="${GDB_ARGS} $gdb_arg"
        shift
    elif [ "x$1" = "x--zygote" ]; then
        ZYGOTE="-Xzygote"
        msg "Spawning from zygote"
        shift
    elif [ "x$1" = "x--dev" ]; then
        DEV_MODE="y"
        shift
    elif [ "x$1" = "x--interpreter" ]; then
        INTERPRETER="y"
        shift
    elif [ "x$1" = "x--jit" ]; then
        JIT="y"
        shift
    elif [ "x$1" = "x--baseline" ]; then
        FLAGS="${FLAGS} -Xcompiler-option --baseline"
        COMPILE_FLAGS="${COMPILE_FLAGS} --baseline"
        shift
    elif [ "x$1" = "x--jvm" ]; then
        USE_JVM="y"
        shift
    elif [ "x$1" = "x--invoke-with" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --invoke-with" 1>&2
            exit 1
        fi
        if [ "x$INVOKE_WITH" = "x" ]; then
            INVOKE_WITH="$1"
        else
            INVOKE_WITH="$INVOKE_WITH $1"
        fi
        shift
    elif [ "x$1" = "x--no-verify" ]; then
        VERIFY="n"
        shift
    elif [ "x$1" = "x--verify-soft-fail" ]; then
        VERIFY="s"
        shift
    elif [ "x$1" = "x--no-optimize" ]; then
        OPTIMIZE="n"
        shift
    elif [ "x$1" = "x--chroot" ]; then
        shift
        CHROOT="$1"
        shift
    elif [ "x$1" = "x--android-root" ]; then
        shift
        ANDROID_ROOT="$1"
        shift
    elif [ "x$1" = "x--android-i18n-root" ]; then
        shift
        ANDROID_I18N_ROOT="$1"
        shift
    elif [ "x$1" = "x--android-art-root" ]; then
        shift
        ANDROID_ART_ROOT="$1"
        shift
    elif [ "x$1" = "x--android-tzdata-root" ]; then
        shift
        ANDROID_TZDATA_ROOT="$1"
        shift
    elif [ "x$1" = "x--instruction-set-features" ]; then
        shift
        INSTRUCTION_SET_FEATURES="$1"
        shift
    elif [ "x$1" = "x--timeout" ]; then
        shift
        TIME_OUT_VALUE="$1"
        shift
    elif [ "x$1" = "x--" ]; then
        shift
        break
    elif [ "x$1" = "x--64" ]; then
        ISA="x86_64"
        GDBSERVER_DEVICE="gdbserver64"
        DALVIKVM="dalvikvm64"
        LIBRARY_DIRECTORY="lib64"
        TEST_DIRECTORY="nativetest64"
        ARCHITECTURES_PATTERN="${ARCHITECTURES_64}"
        GET_DEVICE_ISA_BITNESS_FLAG="--64"
        shift
    elif [ "x$1" = "x--experimental" ]; then
        if [ "$#" -lt 2 ]; then
            echo "missing --experimental option" 1>&2
            exit 1
        fi
        EXPERIMENTAL="$EXPERIMENTAL $2"
        shift 2
    elif [ "x$1" = "x--external-log-tags" ]; then
        EXTERNAL_LOG_TAGS="y"
        shift
    elif [ "x$1" = "x--dry-run" ]; then
        DRY_RUN="y"
        shift
    elif [ "x$1" = "x--vdex" ]; then
        TEST_VDEX="y"
        shift
    elif [ "x$1" = "x--dm" ]; then
        TEST_DM="y"
        shift
    elif [ "x$1" = "x--vdex-filter" ]; then
        shift
        option="$1"
        VDEX_ARGS="${VDEX_ARGS} --compiler-filter=$option"
        shift
    elif [ "x$1" = "x--vdex-arg" ]; then
        shift
        VDEX_ARGS="${VDEX_ARGS} $1"
        shift
    elif [ "x$1" = "x--sync" ]; then
        SYNC_BEFORE_RUN="y"
        shift
    elif [ "x$1" = "x--profile" ]; then
        PROFILE="y"
        shift
    elif [ "x$1" = "x--random-profile" ]; then
        RANDOM_PROFILE="y"
        shift
    elif expr "x$1" : "x--" >/dev/null 2>&1; then
        echo "unknown $0 option: $1" 1>&2
        exit 1
    else
        break
    fi
done

# HACK: Force the use of `signal_dumper` on host.
if [[ "$HOST" = "y" ]]; then
  TIME_OUT="timeout"
fi

# If you change this, update the timeout in testrunner.py as well.
if [ -z "$TIME_OUT_VALUE" ] ; then
  # 10 minutes is the default.
  TIME_OUT_VALUE=600

  # For sanitized builds use a larger base.
  # TODO: Consider sanitized target builds?
  if [ "x$SANITIZE_HOST" != "x" ] ; then
    TIME_OUT_VALUE=1500  # 25 minutes.
  fi

  TIME_OUT_VALUE=$((${TIME_OUT_VALUE} + ${TIME_OUT_EXTRA}))
fi

# Escape hatch for slow hosts or devices. Accept an environment variable as a timeout factor.
if [ ! -z "$ART_TIME_OUT_MULTIPLIER" ] ; then
  TIME_OUT_VALUE=$((${TIME_OUT_VALUE} * ${ART_TIME_OUT_MULTIPLIER}))
fi

# The DEX_LOCATION with the chroot prefix, if any.
CHROOT_DEX_LOCATION="$CHROOT$DEX_LOCATION"

# If running on device, determine the ISA of the device.
if [ "$HOST" = "n" ]; then
  ISA=$("$ANDROID_BUILD_TOP/art/test/utils/get-device-isa" "$GET_DEVICE_ISA_BITNESS_FLAG")
fi

if [ "$USE_JVM" = "n" ]; then
    FLAGS="${FLAGS} ${ANDROID_FLAGS}"
    # we don't want to be trying to get adbconnections since the plugin might
    # not have been built.
    FLAGS="${FLAGS} -XjdwpProvider:none"
    for feature in ${EXPERIMENTAL}; do
        FLAGS="${FLAGS} -Xexperimental:${feature} -Xcompiler-option --runtime-arg -Xcompiler-option -Xexperimental:${feature}"
        COMPILE_FLAGS="${COMPILE_FLAGS} --runtime-arg -Xexperimental:${feature}"
    done
fi

if [ "$CREATE_ANDROID_ROOT" = "y" ]; then
    ANDROID_ROOT=$DEX_LOCATION/android-root
fi

if [ "x$1" = "x" ] ; then
  MAIN="Main"
else
  MAIN="$1"
  shift
fi

if [ "$ZYGOTE" = "" ]; then
    if [ "$OPTIMIZE" = "y" ]; then
        if [ "$VERIFY" = "y" ]; then
            DEX_OPTIMIZE="-Xdexopt:verified"
        else
            DEX_OPTIMIZE="-Xdexopt:all"
        fi
        msg "Performing optimizations"
    else
        DEX_OPTIMIZE="-Xdexopt:none"
        msg "Skipping optimizations"
    fi

    if [ "$VERIFY" = "y" ]; then
        JVM_VERIFY_ARG="-Xverify:all"
        msg "Performing verification"
    elif [ "$VERIFY" = "s" ]; then
        JVM_VERIFY_ARG="Xverify:all"
        DEX_VERIFY="-Xverify:softfail"
        msg "Forcing verification to be soft fail"
    else # VERIFY = "n"
        DEX_VERIFY="-Xverify:none"
        JVM_VERIFY_ARG="-Xverify:none"
        msg "Skipping verification"
    fi
fi

msg "------------------------------"

if [ "$DEBUGGER" = "y" ]; then
  # Use this instead for ddms and connect by running 'ddms':
  # DEBUGGER_OPTS="-XjdwpOptions=server=y,suspend=y -XjdwpProvider:adbconnection"
  # TODO: add a separate --ddms option?

  PORT=12345
  msg "Waiting for jdb to connect:"
  if [ "$HOST" = "n" ]; then
    msg "    adb forward tcp:$PORT tcp:$PORT"
  fi
  msg "    jdb -attach localhost:$PORT"
  if [ "$USE_JVM" = "n" ]; then
    # Use the default libjdwp agent. Use --debug-agent to use a custom one.
    DEBUGGER_OPTS="-agentpath:libjdwp.so=transport=dt_socket,address=$PORT,server=y,suspend=y -XjdwpProvider:internal"
  else
    DEBUGGER_OPTS="-agentlib:jdwp=transport=dt_socket,address=$PORT,server=y,suspend=y"
  fi
elif [ "$DEBUGGER" = "agent" ]; then
  PORT=12345
  # TODO Support ddms connection and support target.
  if [ "$HOST" = "n" ]; then
    echo "--debug-agent not supported yet for target!"
    exit 1
  fi
  AGENTPATH=${DEBUGGER_AGENT}
  if [ "$WRAP_DEBUGGER_AGENT" = "y" ]; then
    WRAPPROPS="${ANDROID_ROOT}/${LIBRARY_DIRECTORY}/libwrapagentpropertiesd.so"
    if [ "$TEST_IS_NDEBUG" = "y" ]; then
      WRAPPROPS="${ANDROID_ROOT}/${LIBRARY_DIRECTORY}/libwrapagentproperties.so"
    fi
    AGENTPATH="${WRAPPROPS}=${ANDROID_BUILD_TOP}/art/tools/libjdwp-compat.props,${AGENTPATH}"
  fi
  msg "Connect to localhost:$PORT"
  DEBUGGER_OPTS="-agentpath:${AGENTPATH}=transport=dt_socket,address=$PORT,server=y,suspend=y"
fi

for agent in "${WITH_AGENT[@]}"; do
  FLAGS="${FLAGS} -agentpath:${agent}"
done

if [ "$USE_JVMTI" = "y" ]; then
  if [ "$USE_JVM" = "n" ]; then
    plugin=libopenjdkjvmtid.so
    if  [[ "$TEST_IS_NDEBUG" = "y" ]]; then
      plugin=libopenjdkjvmti.so
    fi
    # We used to add flags here that made the runtime debuggable but that is not
    # needed anymore since the plugin can do it for us now.
    FLAGS="${FLAGS} -Xplugin:${plugin}"
  fi
fi

if [ "$IS_JVMTI_TEST" = "y" ]; then
  agent=libtiagentd.so
  lib=tiagentd
  if  [[ "$TEST_IS_NDEBUG" = "y" ]]; then
    agent=libtiagent.so
    lib=tiagent
  fi

  ARGS="${ARGS} ${lib}"
  if [[ "$USE_JVM" = "y" ]]; then
    FLAGS="${FLAGS} -agentpath:${ANDROID_HOST_OUT}/nativetest64/${agent}=${TEST_NAME},jvm"
  else
    if [[ "$HOST" = "y" ]]; then
      FLAGS="${FLAGS} -agentpath:${agent}=${TEST_NAME},art"
    else
      # The linker configuration used for dalvikvm(64) in the ART APEX
      # requires us to pass the full path to the agent to the runtime when
      # running on device.
      FLAGS="${FLAGS} -agentpath:/data/${TEST_DIRECTORY}/art/${ISA}/${agent}=${TEST_NAME},art"
    fi
  fi
fi

if [[ "$JVMTI_STRESS" = "y" ]]; then
  agent=libtistressd.so
  if  [[ "$TEST_IS_NDEBUG" = "y" ]]; then
    agent=libtistress.so
  fi

  # Just give it a default start so we can always add ',' to it.
  agent_args="jvmti-stress"
  if [[ "$JVMTI_REDEFINE_STRESS" = "y" ]]; then
    # We really cannot do this on RI so don't both passing it in that case.
    if [[ "$USE_JVM" = "n" ]]; then
      agent_args="${agent_args},redefine"
    fi
  fi
  if [[ "$JVMTI_FIELD_STRESS" = "y" ]]; then
    agent_args="${agent_args},field"
  fi
  if [[ "$JVMTI_STEP_STRESS" = "y" ]]; then
    agent_args="${agent_args},step"
  fi
  if [[ "$JVMTI_TRACE_STRESS" = "y" ]]; then
    agent_args="${agent_args},trace"
  fi
  # In the future add onto this;
  if [[ "$USE_JVM" = "y" ]]; then
    FLAGS="${FLAGS} -agentpath:${ANDROID_HOST_OUT}/nativetest64/${agent}=${agent_args}"
  else
    if [[ "$HOST" = "y" ]]; then
      FLAGS="${FLAGS} -agentpath:${agent}=${agent_args}"
    else
      # The linker configuration used for dalvikvm(64) in the ART APEX
      # requires us to pass the full path to the agent to the runtime when
      # running on device.
      FLAGS="${FLAGS} -agentpath:/data/${TEST_DIRECTORY}/art/${ISA}/${agent}=${agent_args}"
    fi
  fi
fi

if [ "$USE_JVM" = "y" ]; then
  export LD_LIBRARY_PATH=${ANDROID_HOST_OUT}/lib64
  # Some jvmti tests are flaky without -Xint on the RI.
  if [ "$IS_JVMTI_TEST" = "y" ]; then
    FLAGS="${FLAGS} -Xint"
  fi
  # Xmx is necessary since we don't pass down the ART flags to JVM.
  # We pass the classes2 path whether it's used (src-multidex) or not.
  cmdline="${JAVA} ${DEBUGGER_OPTS} ${JVM_VERIFY_ARG} -Xmx256m -classpath classes:classes2 ${FLAGS} $MAIN $@ ${ARGS}"
  if [ "$DEV_MODE" = "y" ]; then
    echo $cmdline
  fi
  if [ "$CREATE_RUNNER" = "y" ]; then
    echo "#!/bin/bash" > runit.sh
    echo "export LD_LIBRARY_PATH=\"$LD_LIBRARY_PATH\""
    echo $cmdline "2>&1" >> runit.sh
    chmod u+x runit.sh
    echo "Runnable test script written to $PWD/runit.sh"
  else
    $cmdline
  fi
  exit
fi

# Note: This must start with the CORE_IMG_JARS in Android.common_path.mk
# because that's what we use for compiling the core.art image.
# It may contain additional modules from TEST_CORE_JARS.
bpath_modules="core-oj core-libart core-icu4j okhttp bouncycastle apache-xml conscrypt"
if [ "${HOST}" = "y" ]; then
    framework="${ANDROID_HOST_OUT}/framework"
    if [ "${ANDROID_HOST_OUT:0:${#ANDROID_BUILD_TOP}+1}" = "${ANDROID_BUILD_TOP}/" ]; then
      framework_location="${ANDROID_HOST_OUT:${#ANDROID_BUILD_TOP}+1}/framework"
    else
      echo "error: ANDROID_BUILD_TOP/ is not a prefix of ANDROID_HOST_OUT"
      echo "ANDROID_BUILD_TOP=${ANDROID_BUILD_TOP}"
      echo "ANDROID_HOST_OUT=${ANDROID_HOST_OUT}"
      exit
    fi
    bpath_suffix="-hostdex"
else
    framework="${ANDROID_ROOT}/framework"
    framework_location="${ANDROID_ROOT}/framework"
    bpath_suffix="-testdex"
fi
bpath=""
bpath_locations=""
bpath_separator=""
for bpath_module in ${bpath_modules}; do
  bpath+="${bpath_separator}${framework}/${bpath_module}${bpath_suffix}.jar"
  bpath_locations+="${bpath_separator}${framework_location}/${bpath_module}${bpath_suffix}.jar"
  bpath_separator=":"
done
# Pass down the bootclasspath
FLAGS="${FLAGS} -Xbootclasspath:${bpath}"
FLAGS="${FLAGS} -Xbootclasspath-locations:${bpath_locations}"
COMPILE_FLAGS="${COMPILE_FLAGS} --runtime-arg -Xbootclasspath:${bpath}"
COMPILE_FLAGS="${COMPILE_FLAGS} --runtime-arg -Xbootclasspath-locations:${bpath_locations}"

if [ "$HAVE_IMAGE" = "n" ]; then
    # Disable image dex2oat - this will forbid the runtime to patch or compile an image.
    FLAGS="${FLAGS} -Xnoimage-dex2oat"

    # We'll abuse a second flag here to test different behavior. If --relocate, use the
    # existing image - relocation will fail as patching is disallowed. If --no-relocate,
    # pass a non-existent image - compilation will fail as dex2oat is disallowed.
    if [ "${RELOCATE}" = "y" ] ; then
      DALVIKVM_BOOT_OPT="-Ximage:${BOOT_IMAGE}"
    else
      DALVIKVM_BOOT_OPT="-Ximage:/system/non-existent/core.art"
    fi
else
    DALVIKVM_BOOT_OPT="-Ximage:${BOOT_IMAGE}"
fi


if [ "$USE_GDB" = "y" ]; then
  if [ "$USE_GDBSERVER" = "y" ]; then
    echo "Cannot pass both --gdb and --gdbserver at the same time!" >&2
    exit 1
  elif [ "$HOST" = "n" ]; then
    # We might not have any hostname resolution if we are using a chroot.
    GDB="$GDBSERVER_DEVICE --no-startup-with-shell 127.0.0.1$GDBSERVER_PORT"
  else
    if [ `uname` = "Darwin" ]; then
        GDB=lldb
        GDB_ARGS="$GDB_ARGS -- $DALVIKVM"
        DALVIKVM=
    else
        GDB=gdb
        GDB_ARGS="$GDB_ARGS --args $DALVIKVM"
        # Enable for Emacs "M-x gdb" support. TODO: allow extra gdb arguments on command line.
        # gdbargs="--annotate=3 $gdbargs"
    fi
  fi
elif [ "$USE_GDBSERVER" = "y" ]; then
  if [ "$HOST" = "n" ]; then
    # We might not have any hostname resolution if we are using a chroot.
    GDB="$GDBSERVER_DEVICE --no-startup-with-shell 127.0.0.1$GDBSERVER_PORT"
  else
    GDB="$GDBSERVER_HOST $GDBSERVER_PORT"
  fi
fi

if [ "$INTERPRETER" = "y" ]; then
    INT_OPTS="${INT_OPTS} -Xint"
    if [ "$VERIFY" = "y" ] ; then
      INT_OPTS="${INT_OPTS} -Xcompiler-option --compiler-filter=quicken"
      COMPILE_FLAGS="${COMPILE_FLAGS} --compiler-filter=quicken"
    elif [ "$VERIFY" = "s" ]; then
      INT_OPTS="${INT_OPTS} -Xcompiler-option --compiler-filter=extract"
      COMPILE_FLAGS="${COMPILE_FLAGS} --compiler-filter=extract"
      DEX_VERIFY="${DEX_VERIFY} -Xverify:softfail"
    else # VERIFY = "n"
      INT_OPTS="${INT_OPTS} -Xcompiler-option --compiler-filter=assume-verified"
      COMPILE_FLAGS="${COMPILE_FLAGS} --compiler-filter=assume-verified"
      DEX_VERIFY="${DEX_VERIFY} -Xverify:none"
    fi
fi

if [ "$JIT" = "y" ]; then
    INT_OPTS="${INT_OPTS} -Xusejit:true"
    if [ "$VERIFY" = "y" ] ; then
      INT_OPTS="${INT_OPTS} -Xcompiler-option --compiler-filter=quicken"
      COMPILE_FLAGS="${COMPILE_FLAGS} --compiler-filter=quicken"
    else
      INT_OPTS="${INT_OPTS} -Xcompiler-option --compiler-filter=assume-verified"
      COMPILE_FLAGS="${COMPILE_FLAGS} --compiler-filter=assume-verified"
      DEX_VERIFY="${DEX_VERIFY} -Xverify:none"
    fi
else
    INT_OPTS="${INT_OPTS} -Xusejit:false"
fi

JNI_OPTS="-Xjnigreflimit:512 -Xcheck:jni"

COMPILE_FLAGS="${COMPILE_FLAGS} --runtime-arg -Xnorelocate"
if [ "$RELOCATE" = "y" ]; then
    FLAGS="${FLAGS} -Xrelocate"
else
    FLAGS="$FLAGS -Xnorelocate"
fi

if [ "$BIONIC" = "y" ]; then
  # This is the location that soong drops linux_bionic builds. Despite being
  # called linux_bionic-x86 the build is actually amd64 (x86_64) only.
  if [ ! -e "$OUT_DIR/soong/host/linux_bionic-x86" ]; then
    echo "linux_bionic-x86 target doesn't seem to have been built!" >&2
    exit 1
  fi
  # Set TIMEOUT_DUMPER manually so it works even with apex's
  TIMEOUT_DUMPER=$OUT_DIR/soong/host/linux_bionic-x86/bin/signal_dumper
fi

# Prevent test from silently falling back to interpreter in no-prebuild mode. This happens
# when DEX_LOCATION path is too long, because vdex/odex filename is constructed by taking
# full path to dex, stripping leading '/', appending '@classes.vdex' and changing every
# remaining '/' into '@'.
if [ "$HOST" = "y" ]; then
  max_filename_size=$(getconf NAME_MAX $DEX_LOCATION)
else
  # There is no getconf on device, fallback to standard value.
  # See NAME_MAX in kernel <linux/limits.h>
  max_filename_size=255
fi
# Compute VDEX_NAME.
DEX_LOCATION_STRIPPED="${DEX_LOCATION#/}"
VDEX_NAME="${DEX_LOCATION_STRIPPED//\//@}@$TEST_NAME.jar@classes.vdex"
if [ ${#VDEX_NAME} -gt $max_filename_size ]; then
    echo "Dex location path too long:"
    echo "$VDEX_NAME is ${#VDEX_NAME} character long, and the limit is $max_filename_size."
    exit 1
fi

if [ "$HOST" = "y" ]; then
  # On host, run binaries (`dex2oat(d)`, `dalvikvm`, `profman`) from the `bin`
  # directory under the "Android Root" (usually `out/host/linux-x86`).
  #
  # TODO(b/130295968): Adjust this if/when ART host artifacts are installed
  # under the ART root (usually `out/host/linux-x86/com.android.art`).
  ANDROID_ART_BIN_DIR=$ANDROID_ROOT/bin
else
  # On target, run binaries (`dex2oat(d)`, `dalvikvm`, `profman`) from the ART
  # APEX's `bin` directory. This means the linker will observe the ART APEX
  # linker configuration file (`/apex/com.android.art/etc/ld.config.txt`) for
  # these binaries.
  ANDROID_ART_BIN_DIR=$ANDROID_ART_ROOT/bin
fi

profman_cmdline="true"
dex2oat_cmdline="true"
vdex_cmdline="true"
dm_cmdline="true"
mkdir_locations="${DEX_LOCATION}/dalvik-cache/$ISA"
strip_cmdline="true"
sync_cmdline="true"
linkroot_cmdline="true"
linkroot_overlay_cmdline="true"
setupapex_cmdline="true"
installapex_cmdline="true"

linkdirs() {
  find "$1" -maxdepth 1 -mindepth 1 -type d | xargs -i ln -sf '{}' "$2"
}

if [ "$CREATE_ANDROID_ROOT" = "y" ]; then
  mkdir_locations="${mkdir_locations} ${ANDROID_ROOT}"
  linkroot_cmdline="linkdirs ${ANDROID_HOST_OUT} ${ANDROID_ROOT}"
  if [ "${BIONIC}" = "y" ]; then
    # TODO Make this overlay more generic.
    linkroot_overlay_cmdline="linkdirs $OUT_DIR/soong/host/linux_bionic-x86 ${ANDROID_ROOT}"
  fi
fi

if [ "$USE_ZIPAPEX" = "y" ]; then
  # TODO Currently this only works for linux_bionic zipapexes because those are
  # stripped and so small enough that the ulimit doesn't kill us.
  mkdir_locations="${mkdir_locations} $DEX_LOCATION/zipapex"
  zip_options="-qq"
  if [ "$DEV_MODE" = "y" ]; then
    zip_options=""
  fi
  setupapex_cmdline="unzip -o -u ${zip_options} ${ZIPAPEX_LOC} apex_payload.zip -d ${DEX_LOCATION}"
  installapex_cmdline="unzip -o -u ${zip_options} ${DEX_LOCATION}/apex_payload.zip -d ${DEX_LOCATION}/zipapex"
  ANDROID_ART_BIN_DIR=$DEX_LOCATION/zipapex/bin
elif [ "$USE_EXTRACTED_ZIPAPEX" = "y" ]; then
  # Just symlink the zipapex binaries
  ANDROID_ART_BIN_DIR=$DEX_LOCATION/zipapex/bin
  # Force since some tests manually run this file twice.
  ln_options=""
  if [ "$DEV_MODE" = "y" ]; then
    ln_options="--verbose"
  fi
  installapex_cmdline="ln -s -f ${ln_options} ${EXTRACTED_ZIPAPEX_LOC} ${DEX_LOCATION}/zipapex"
fi

# PROFILE takes precedence over RANDOM_PROFILE, since PROFILE tests require a
# specific profile to run properly.
if [ "$PROFILE" = "y" ] || [ "$RANDOM_PROFILE" = "y" ]; then
  profman_cmdline="$ANDROID_ART_BIN_DIR/profman  \
    --apk=$DEX_LOCATION/$TEST_NAME.jar \
    --dex-location=$DEX_LOCATION/$TEST_NAME.jar"
  if [ -f $DEX_LOCATION/$TEST_NAME-ex.jar ]; then
    profman_cmdline="${profman_cmdline} \
      --apk=$DEX_LOCATION/$TEST_NAME-ex.jar \
      --dex-location=$DEX_LOCATION/$TEST_NAME-ex.jar"
  fi
  COMPILE_FLAGS="${COMPILE_FLAGS} --profile-file=$DEX_LOCATION/$TEST_NAME.prof"
  FLAGS="${FLAGS} -Xcompiler-option --profile-file=$DEX_LOCATION/$TEST_NAME.prof"
  if [ "$PROFILE" = "y" ]; then
    profman_cmdline="${profman_cmdline} --create-profile-from=$DEX_LOCATION/profile \
        --reference-profile-file=$DEX_LOCATION/$TEST_NAME.prof"
  else
    profman_cmdline="${profman_cmdline} --generate-test-profile=$DEX_LOCATION/$TEST_NAME.prof \
        --generate-test-profile-seed=0"
  fi
fi

# Enable mini-debug-info for JIT (if JIT is used).
FLAGS="$FLAGS -Xcompiler-option --generate-mini-debug-info"

if [ "$PREBUILD" = "y" ]; then
  mkdir_locations="${mkdir_locations} ${DEX_LOCATION}/oat/$ISA"
  if [ "$APP_IMAGE" = "y" ]; then
    # Pick a base that will force the app image to get relocated.
    app_image="--app-image-file=$DEX_LOCATION/oat/$ISA/$TEST_NAME.art --resolve-startup-const-strings=true"
  fi

  dex2oat_binary=${DEX2OAT_DEBUG_BINARY}
  if  [[ "$TEST_IS_NDEBUG" = "y" ]]; then
    dex2oat_binary=${DEX2OAT_NDEBUG_BINARY}
  fi
  dex2oat_cmdline="$INVOKE_WITH $ANDROID_ART_BIN_DIR/$dex2oat_binary \
                      $COMPILE_FLAGS \
                      --boot-image=${BOOT_IMAGE} \
                      --dex-file=$DEX_LOCATION/$TEST_NAME.jar \
                      --oat-file=$DEX_LOCATION/oat/$ISA/$TEST_NAME.odex \
                      ${app_image} \
                      --generate-mini-debug-info \
                      --instruction-set=$ISA"
  if [ "x$INSTRUCTION_SET_FEATURES" != "x" ] ; then
    dex2oat_cmdline="${dex2oat_cmdline} --instruction-set-features=${INSTRUCTION_SET_FEATURES}"
  fi

  # Add in a timeout. This is important for testing the compilation/verification time of
  # pathological cases.
  # Note: as we don't know how decent targets are (e.g., emulator), only do this on the host for
  #       now. We should try to improve this.
  #       The current value is rather arbitrary. run-tests should compile quickly.
  # Watchdog timeout is in milliseconds so add 3 '0's to the dex2oat timeout.
  if [ "$HOST" != "n" ]; then
    # Use SIGRTMIN+2 to try to dump threads.
    # Use -k 1m to SIGKILL it a minute later if it hasn't ended.
    dex2oat_cmdline="timeout -k ${DEX2OAT_TIMEOUT}s -s SIGRTMIN+2 ${DEX2OAT_RT_TIMEOUT}s ${dex2oat_cmdline} --watchdog-timeout=${DEX2OAT_TIMEOUT}000"
  fi
  if [ "$PROFILE" = "y" ] || [ "$RANDOM_PROFILE" = "y" ]; then
    vdex_cmdline="${dex2oat_cmdline} ${VDEX_ARGS} --input-vdex=$DEX_LOCATION/oat/$ISA/$TEST_NAME.vdex --output-vdex=$DEX_LOCATION/oat/$ISA/$TEST_NAME.vdex"
  elif [ "$TEST_VDEX" = "y" ]; then
    vdex_cmdline="${dex2oat_cmdline} ${VDEX_ARGS} --input-vdex=$DEX_LOCATION/oat/$ISA/$TEST_NAME.vdex"
  elif [ "$TEST_DM" = "y" ]; then
    dex2oat_cmdline="${dex2oat_cmdline} --output-vdex=$DEX_LOCATION/oat/$ISA/primary.vdex"
    dm_cmdline="zip -qj $DEX_LOCATION/oat/$ISA/$TEST_NAME.dm $DEX_LOCATION/oat/$ISA/primary.vdex"
    vdex_cmdline="${dex2oat_cmdline} ${VDEX_ARGS} --dump-timings --dm-file=$DEX_LOCATION/oat/$ISA/$TEST_NAME.dm"
  elif [ "$PROFILE" = "y" ] || [ "$RANDOM_PROFILE" = "y" ]; then
    vdex_cmdline="${dex2oat_cmdline} --input-vdex=$DEX_LOCATION/oat/$ISA/$TEST_NAME.vdex --output-vdex=$DEX_LOCATION/oat/$ISA/$TEST_NAME.vdex"
  fi
fi

if [ "$STRIP_DEX" = "y" ]; then
  strip_cmdline="zip --quiet --delete $DEX_LOCATION/$TEST_NAME.jar classes.dex"
fi

if [ "$SYNC_BEFORE_RUN" = "y" ]; then
  sync_cmdline="sync"
fi

DALVIKVM_ISA_FEATURES_ARGS=""
if [ "x$INSTRUCTION_SET_FEATURES" != "x" ] ; then
  DALVIKVM_ISA_FEATURES_ARGS="-Xcompiler-option --instruction-set-features=${INSTRUCTION_SET_FEATURES}"
fi

# java.io.tmpdir can only be set at launch time.
TMP_DIR_OPTION=""
if [ "$HOST" = "n" ]; then
  TMP_DIR_OPTION="-Djava.io.tmpdir=/data/local/tmp"
fi

# The build servers have an ancient version of bash so we cannot use @Q.
if [ "$USE_GDBSERVER" == "y" ]; then
  printf -v QUOTED_DALVIKVM_BOOT_OPT "%q" "$DALVIKVM_BOOT_OPT"
else
  QUOTED_DALVIKVM_BOOT_OPT="$DALVIKVM_BOOT_OPT"
fi

# We set DumpNativeStackOnSigQuit to false to avoid stressing libunwind.
# b/27185632
# b/24664297
dalvikvm_cmdline="$INVOKE_WITH $GDB $ANDROID_ART_BIN_DIR/$DALVIKVM \
                  $GDB_ARGS \
                  $FLAGS \
                  $DEX_VERIFY \
                  -XXlib:$LIB \
                  $DEX2OAT \
                  $DALVIKVM_ISA_FEATURES_ARGS \
                  $ZYGOTE \
                  $JNI_OPTS \
                  $INT_OPTS \
                  $DEBUGGER_OPTS \
                  ${QUOTED_DALVIKVM_BOOT_OPT} \
                  $TMP_DIR_OPTION \
                  -XX:DumpNativeStackOnSigQuit:false \
                  -cp $DEX_LOCATION/$TEST_NAME.jar$SECONDARY_DEX $MAIN $ARGS"

# Remove whitespace.
dex2oat_cmdline=$(echo $dex2oat_cmdline)
dalvikvm_cmdline=$(echo $dalvikvm_cmdline)
dm_cmdline=$(echo $dm_cmdline)
vdex_cmdline=$(echo $vdex_cmdline)
profman_cmdline=$(echo $profman_cmdline)

# Use an empty ASAN_OPTIONS to enable defaults.
# Note: this is required as envsetup right now exports detect_leaks=0.
RUN_TEST_ASAN_OPTIONS=""

# Multiple shutdown leaks. b/38341789
if [ "x$RUN_TEST_ASAN_OPTIONS" != "x" ] ; then
  RUN_TEST_ASAN_OPTIONS="${RUN_TEST_ASAN_OPTIONS}:"
fi
RUN_TEST_ASAN_OPTIONS="${RUN_TEST_ASAN_OPTIONS}detect_leaks=0"

# For running, we must turn off logging when dex2oat is missing. Otherwise we use
# the same defaults as for prebuilt: everything when --dev, otherwise errors and above only.
if [ "$EXTERNAL_LOG_TAGS" = "n" ]; then
  if [ "$DEV_MODE" = "y" ]; then
      export ANDROID_LOG_TAGS='*:d'
  elif [ "$HAVE_IMAGE" = "n" ]; then
      # All tests would log the error of missing image. Be silent here and only log fatal
      # events.
      export ANDROID_LOG_TAGS='*:s'
  else
      # We are interested in LOG(ERROR) output.
      export ANDROID_LOG_TAGS='*:e'
  fi
fi

if [ "$HOST" = "n" ]; then
    adb root > /dev/null
    adb wait-for-device
    if [ "$QUIET" = "n" ]; then
      adb shell rm -rf $CHROOT_DEX_LOCATION
      adb shell mkdir -p $CHROOT_DEX_LOCATION
      adb push $TEST_NAME.jar $CHROOT_DEX_LOCATION
      adb push $TEST_NAME-ex.jar $CHROOT_DEX_LOCATION
      if [ "$PROFILE" = "y" ] || [ "$RANDOM_PROFILE" = "y" ]; then
        adb push profile $CHROOT_DEX_LOCATION
      fi
      # Copy resource folder
      if [ -d res ]; then
        adb push res $CHROOT_DEX_LOCATION
      fi
    else
      adb shell rm -rf $CHROOT_DEX_LOCATION >/dev/null 2>&1
      adb shell mkdir -p $CHROOT_DEX_LOCATION >/dev/null 2>&1
      adb push $TEST_NAME.jar $CHROOT_DEX_LOCATION >/dev/null 2>&1
      adb push $TEST_NAME-ex.jar $CHROOT_DEX_LOCATION >/dev/null 2>&1
      if [ "$PROFILE" = "y" ] || [ "$RANDOM_PROFILE" = "y" ]; then
        adb push profile $CHROOT_DEX_LOCATION >/dev/null 2>&1
      fi
      # Copy resource folder
      if [ -d res ]; then
        adb push res $CHROOT_DEX_LOCATION >/dev/null 2>&1
      fi
    fi

    # Populate LD_LIBRARY_PATH.
    LD_LIBRARY_PATH=
    if [ "$ANDROID_ROOT" != "/system" ]; then
      # Current default installation is dalvikvm 64bits and dex2oat 32bits,
      # so we can only use LD_LIBRARY_PATH when testing on a local
      # installation.
      LD_LIBRARY_PATH="$ANDROID_ROOT/$LIBRARY_DIRECTORY"
    fi
    # Needed to access libarttest(d).so and JVMTI agent libraries.
    LD_LIBRARY_PATH="/data/$TEST_DIRECTORY/art/$ISA:$LD_LIBRARY_PATH"
    # Needed to access the boot (core) image files.
    LD_LIBRARY_PATH="/data/art-test/$ISA:$LD_LIBRARY_PATH"
    # Needed to access the test's Odex files.
    LD_LIBRARY_PATH="$DEX_LOCATION/oat/$ISA:$LD_LIBRARY_PATH"
    # Needed to access the test's native libraries (see e.g. 674-hiddenapi,
    # which generates `libhiddenapitest_*.so` libraries in `$DEX_LOCATION`).
    LD_LIBRARY_PATH="$DEX_LOCATION:$LD_LIBRARY_PATH"

    # System libraries needed by libarttestd.so
    PUBLIC_LIBS=libc++.so:libbacktrace.so:libbase.so:libnativehelper.so
    if [ "$TEST_IS_NDEBUG" = "y" ]; then
      PUBLIC_LIBS=$PUBLIC_LIBS:libart.so:libdexfile.so:libprofile.so:libartbase.so
    else
      PUBLIC_LIBS=$PUBLIC_LIBS:libartd.so:libdexfiled.so:libprofiled.so:libartbased.so
    fi

    # Prepend directories to the path on device.
    PREPEND_TARGET_PATH=$ANDROID_ART_BIN_DIR
    if [ "$ANDROID_ROOT" != "/system" ]; then
      PREPEND_TARGET_PATH="$PREPEND_TARGET_PATH:$ANDROID_ROOT/bin"
    fi

    timeout_dumper_cmd=

    # Check whether signal_dumper is available.
    if [ "$TIMEOUT_DUMPER" = signal_dumper ] ; then
      # Chroot? Use as prefix for tests.
      TIMEOUT_DUMPER_PATH_PREFIX=
      if [ -n "$CHROOT" ]; then
        TIMEOUT_DUMPER_PATH_PREFIX="$CHROOT/"
      fi

      # Testing APEX?
      if adb shell "test -x ${TIMEOUT_DUMPER_PATH_PREFIX}/apex/com.android.art/bin/signal_dumper" ; then
        TIMEOUT_DUMPER="/apex/com.android.art/bin/signal_dumper"
      # Is it in /system/bin?
      elif adb shell "test -x ${TIMEOUT_DUMPER_PATH_PREFIX}/system/bin/signal_dumper" ; then
        TIMEOUT_DUMPER="/system/bin/signal_dumper"
      else
        TIMEOUT_DUMPER=
      fi
    else
      TIMEOUT_DUMPER=
    fi

    if [ ! -z "$TIMEOUT_DUMPER" ] ; then
      # Use "-l" to dump to logcat. That is convenience for the build bot crash symbolization.
      # Use exit code 124 for toybox timeout (b/141007616).
      timeout_dumper_cmd="${TIMEOUT_DUMPER} -l -s 15 -e 124"
    fi

    timeout_prefix=
    if [ "$TIME_OUT" = "timeout" ]; then
      # Add timeout command if time out is desired.
      #
      # Note: We first send SIGTERM (the timeout default, signal 15) to the signal dumper, which
      #       will induce a full thread dump before killing the process. To ensure any issues in
      #       dumping do not lead to a deadlock, we also use the "-k" option to definitely kill the
      #       child.
      # Note: Using "--foreground" to not propagate the signal to children, i.e., the runtime.
      timeout_prefix="timeout --foreground -k 120s ${TIME_OUT_VALUE}s ${timeout_dumper_cmd} $cmdline"
    fi

    # Create a script with the command. The command can get longer than the longest
    # allowed adb command and there is no way to get the exit status from a adb shell
    # command. Dalvik cache is cleaned before running to make subsequent executions
    # of the script follow the same runtime path.
    cmdline="cd $DEX_LOCATION && \
             export ASAN_OPTIONS=$RUN_TEST_ASAN_OPTIONS && \
             export ANDROID_DATA=$DEX_LOCATION && \
             export ANDROID_ADDITIONAL_PUBLIC_LIBRARIES=$PUBLIC_LIBS && \
             export DEX_LOCATION=$DEX_LOCATION && \
             export ANDROID_ROOT=$ANDROID_ROOT && \
             export ANDROID_I18N_ROOT=$ANDROID_I18N_ROOT && \
             export ANDROID_ART_ROOT=$ANDROID_ART_ROOT && \
             export ANDROID_TZDATA_ROOT=$ANDROID_TZDATA_ROOT && \
             export ANDROID_LOG_TAGS=$ANDROID_LOG_TAGS && \
             rm -rf ${DEX_LOCATION}/dalvik-cache/ && \
             mkdir -p ${mkdir_locations} && \
             export LD_LIBRARY_PATH=$LD_LIBRARY_PATH && \
             export PATH=$PREPEND_TARGET_PATH:\$PATH && \
             $profman_cmdline && \
             $dex2oat_cmdline && \
             $dm_cmdline && \
             $vdex_cmdline && \
             $strip_cmdline && \
             $sync_cmdline && \
             $timeout_prefix $dalvikvm_cmdline"

    cmdfile=$(tempfile -p "cmd-" -s "-$TEST_NAME")
    echo "$cmdline" > $cmdfile

    if [ "$DEV_MODE" = "y" ]; then
      echo $cmdline
      if [ "$USE_GDB" = "y" ] || [ "$USE_GDBSERVER" = "y" ]; then
        echo "Forward ${GDBSERVER_PORT} to local port and connect GDB"
      fi
    fi

    if [ "$QUIET" = "n" ]; then
      adb push $cmdfile $CHROOT_DEX_LOCATION/cmdline.sh
    else
      adb push $cmdfile $CHROOT_DEX_LOCATION/cmdline.sh >/dev/null 2>&1
    fi

    exit_status=0
    if [ "$DRY_RUN" != "y" ]; then
      if [ -n "$CHROOT" ]; then
        adb shell chroot "$CHROOT" sh $DEX_LOCATION/cmdline.sh
      else
        adb shell sh $DEX_LOCATION/cmdline.sh
      fi
      exit_status=$?
    fi

    rm -f $cmdfile
    exit $exit_status
else
    # Host run.
    export ANDROID_PRINTF_LOG=brief

    export ANDROID_DATA="$DEX_LOCATION"
    export ANDROID_ROOT="${ANDROID_ROOT}"
    export ANDROID_I18N_ROOT="${ANDROID_I18N_ROOT}"
    export ANDROID_ART_ROOT="${ANDROID_ART_ROOT}"
    export ANDROID_TZDATA_ROOT="${ANDROID_TZDATA_ROOT}"
    if [ "$USE_ZIPAPEX" = "y" ] || [ "$USE_EXRACTED_ZIPAPEX" = "y" ]; then
      # Put the zipapex files in front of the ld-library-path
      export LD_LIBRARY_PATH="${ANDROID_DATA}/zipapex/${LIBRARY_DIRECTORY}:${ANDROID_ROOT}/${TEST_DIRECTORY}"
      export DYLD_LIBRARY_PATH="${ANDROID_DATA}/zipapex/${LIBRARY_DIRECTORY}:${ANDROID_ROOT}/${TEST_DIRECTORY}"
    else
      export LD_LIBRARY_PATH="${ANDROID_ROOT}/${LIBRARY_DIRECTORY}:${ANDROID_ROOT}/${TEST_DIRECTORY}"
      export DYLD_LIBRARY_PATH="${ANDROID_ROOT}/${LIBRARY_DIRECTORY}:${ANDROID_ROOT}/${TEST_DIRECTORY}"
    fi
    export PATH="$PATH:$ANDROID_ART_BIN_DIR"

    # Temporarily disable address space layout randomization (ASLR).
    # This is needed on the host so that the linker loads core.oat at the necessary address.
    export LD_USE_LOAD_BIAS=1

    cmdline="$dalvikvm_cmdline"

    if [ "$TIME_OUT" = "gdb" ]; then
      if [ `uname` = "Darwin" ]; then
        # Fall back to timeout on Mac.
        TIME_OUT="timeout"
      elif [ "$ISA" = "x86" ]; then
        # prctl call may fail in 32-bit on an older (3.2) 64-bit Linux kernel. Fall back to timeout.
        TIME_OUT="timeout"
      else
        # Check if gdb is available.
        gdb --eval-command="quit" > /dev/null 2>&1
        if [ $? != 0 ]; then
          # gdb isn't available. Fall back to timeout.
          TIME_OUT="timeout"
        fi
      fi
    fi

    if [ "$TIME_OUT" = "timeout" ]; then
      # Add timeout command if time out is desired.
      #
      # Note: We first send SIGTERM (the timeout default, signal 15) to the signal dumper, which
      #       will induce a full thread dump before killing the process. To ensure any issues in
      #       dumping do not lead to a deadlock, we also use the "-k" option to definitely kill the
      #       child.
      # Note: Using "--foreground" to not propagate the signal to children, i.e., the runtime.
      cmdline="timeout --foreground -k 120s ${TIME_OUT_VALUE}s ${TIMEOUT_DUMPER} -s 15 $cmdline"
    fi

    if [ "$DEV_MODE" = "y" ]; then
      for var in ANDROID_PRINTF_LOG ANDROID_DATA ANDROID_ROOT ANDROID_I18N_ROOT ANDROID_TZDATA_ROOT ANDROID_ART_ROOT LD_LIBRARY_PATH DYLD_LIBRARY_PATH PATH LD_USE_LOAD_BIAS; do
        echo EXPORT $var=${!var}
      done
      echo "$(declare -f linkdirs)"
      echo "mkdir -p ${mkdir_locations} && $setupapex_cmdline && $installapex_cmdline && $linkroot_cmdline && $linkroot_overlay_cmdline && $profman_cmdline && $dex2oat_cmdline && $dm_cmdline && $vdex_cmdline && $strip_cmdline && $sync_cmdline && $cmdline"
    fi

    cd $ANDROID_BUILD_TOP

    # Make sure we delete any existing compiler artifacts.
    # This enables tests to call the RUN script multiple times in a row
    # without worrying about interference.
    rm -rf ${DEX_LOCATION}/oat
    rm -rf ${DEX_LOCATION}/dalvik-cache/

    export ASAN_OPTIONS=$RUN_TEST_ASAN_OPTIONS

    mkdir -p ${mkdir_locations} || exit 1
    $setupapex_cmdline || { echo "zipapex extraction failed." >&2 ; exit 2; }
    $installapex_cmdline || { echo "zipapex install failed. cmd was: ${installapex_cmdline}." >&2; find ${mkdir_locations} -type f >&2; exit 2; }
    $linkroot_cmdline || { echo "create symlink android-root failed." >&2 ; exit 2; }
    $linkroot_overlay_cmdline || { echo "overlay android-root failed." >&2 ; exit 2; }
    $profman_cmdline || { echo "Profman failed." >&2 ; exit 2; }
    $dex2oat_cmdline || { echo "Dex2oat failed." >&2 ; exit 2; }
    $dm_cmdline || { echo "Dex2oat failed." >&2 ; exit 2; }
    $vdex_cmdline || { echo "Dex2oat failed." >&2 ; exit 2; }
    $strip_cmdline || { echo "Strip failed." >&2 ; exit 3; }
    $sync_cmdline || { echo "Sync failed." >&2 ; exit 4; }

    if [ "$CREATE_RUNNER" = "y" ]; then
      echo "#!/bin/bash" > ${DEX_LOCATION}/runit.sh
      for var in ANDROID_PRINTF_LOG ANDROID_DATA ANDROID_ROOT ANDROID_I18N_ROOT ANDROID_TZDATA_ROOT ANDROID_ART_ROOT LD_LIBRARY_PATH DYLD_LIBRARY_PATH PATH LD_USE_LOAD_BIAS; do
        echo export $var="${!var}" >> ${DEX_LOCATION}/runit.sh
      done
      if [ "$DEV_MODE" = "y" ]; then
        echo $cmdline "2>&1" >> ${DEX_LOCATION}/runit.sh
      else
        echo 'STDERR=$(mktemp)' >> ${DEX_LOCATION}/runit.sh
        echo 'STDOUT=$(mktemp)' >> ${DEX_LOCATION}/runit.sh
        echo $cmdline '2>${STDERR} >${STDOUT}' >> ${DEX_LOCATION}/runit.sh
        echo 'if diff ${STDOUT} $ANDROID_DATA/expected.txt; then' >> ${DEX_LOCATION}/runit.sh
        echo '  rm -f ${STDOUT} ${STDERR}' >> ${DEX_LOCATION}/runit.sh
        echo '  exit 0' >> ${DEX_LOCATION}/runit.sh
        echo 'else' >> ${DEX_LOCATION}/runit.sh
        echo '  echo  STDOUT:' >> ${DEX_LOCATION}/runit.sh
        echo '  cat ${STDOUT}' >> ${DEX_LOCATION}/runit.sh
        echo '  echo  STDERR:' >> ${DEX_LOCATION}/runit.sh
        echo '  cat ${STDERR}' >> ${DEX_LOCATION}/runit.sh
        echo '  rm -f ${STDOUT} ${STDERR}' >> ${DEX_LOCATION}/runit.sh
        echo '  exit 1' >> ${DEX_LOCATION}/runit.sh
        echo 'fi' >> ${DEX_LOCATION}/runit.sh
      fi
      chmod u+x $DEX_LOCATION/runit.sh
      echo "Runnable test script written to ${DEX_LOCATION}/runit.sh"
    fi
    if [ "$DRY_RUN" = "y" ]; then
      exit 0
    fi

    if [ "$USE_GDB" = "y" ]; then
      # When running under gdb, we cannot do piping and grepping...
      $cmdline "$@"
    elif [ "$USE_GDBSERVER" = "y" ]; then
      echo "Connect to $GDBSERVER_PORT"
      # When running under gdb, we cannot do piping and grepping...
      $cmdline "$@"
    else
      if [ "$TIME_OUT" != "gdb" ]; then
        trap 'kill -INT -$pid' INT
        $cmdline "$@" 2>&1 & pid=$!
        wait $pid
        exit_value=$?
        # Add extra detail if time out is enabled.
        if [ $exit_value = 124 ] && [ "$TIME_OUT" = "timeout" ]; then
          echo -e "\e[91mTEST TIMED OUT!\e[0m" >&2
        fi
        exit $exit_value
      else
        # With a thread dump that uses gdb if a timeout.
        trap 'kill -INT -$pid' INT
        $cmdline "$@" 2>&1 & pid=$!
        # Spawn a watcher process.
        ( sleep $TIME_OUT_VALUE && \
          echo "##### Thread dump using gdb on test timeout" && \
          ( gdb -q -p $pid --eval-command="info thread" --eval-command="thread apply all bt" \
                           --eval-command="call exit(124)" --eval-command=quit || \
            kill $pid )) 2> /dev/null & watcher=$!
        wait $pid
        test_exit_status=$?
        pkill -P $watcher 2> /dev/null # kill the sleep which will in turn end the watcher as well
        if [ $test_exit_status = 0 ]; then
          # The test finished normally.
          exit 0
        else
          # The test failed or timed out.
          if [ $test_exit_status = 124 ]; then
            # The test timed out.
            echo -e "\e[91mTEST TIMED OUT!\e[0m" >&2
          fi
          exit $test_exit_status
        fi
      fi
    fi
fi