#!/bin/bash
#
# Copyright (C) 2007 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.

# Set up prog to be the path of this script, including following symlinks,
# and set up progdir to be the fully-qualified pathname of its directory.
prog="$0"
args="$@"
while [ -h "${prog}" ]; do
    newProg=`/bin/ls -ld "${prog}"`
    newProg=`expr "${newProg}" : ".* -> \(.*\)$"`
    if expr "x${newProg}" : 'x/' >/dev/null; then
        prog="${newProg}"
    else
        progdir=`dirname "${prog}"`
        prog="${progdir}/${newProg}"
    fi
done
oldwd=`pwd`
progdir=`dirname "${prog}"`
cd "${progdir}"
progdir=`pwd`
prog="${progdir}"/`basename "${prog}"`
test_dir="test-$$"
if [ -z "$TMPDIR" ]; then
  tmp_dir="/tmp/$USER/${test_dir}"
else
  tmp_dir="${TMPDIR}/${test_dir}"
fi
checker="${progdir}/../tools/checker/checker.py"
export JAVA="java"
export JAVAC="javac -g -Xlint:-options -source 1.8 -target 1.8"
export RUN="${progdir}/etc/run-test-jar"
export DEX_LOCATION=/data/run-test/${test_dir}
export NEED_DEX="true"
export USE_D8="true"
export USE_DESUGAR="true"
export SMALI_ARGS=""

# If d8 was not set by the environment variable, assume it is in the path.
if [ -z "$D8" ]; then
  export D8="d8"
fi

# If dx was not set by the environment variable, assume it is in the path.
if [ -z "$DX" ]; then
  export DX="d8-compat-dx"
fi

export DEXMERGER="$D8"

# If jasmin was not set by the environment variable, assume it is in the path.
if [ -z "$JASMIN" ]; then
  export JASMIN="jasmin"
fi

# If smali was not set by the environment variable, assume it is in the path.
if [ -z "$SMALI" ]; then
  export SMALI="smali"
fi

# ANDROID_BUILD_TOP is not set in a build environment.
if [ -z "$ANDROID_BUILD_TOP" ]; then
    export ANDROID_BUILD_TOP=$oldwd
fi

# OUT_DIR defaults to out, and may be relative to $ANDROID_BUILD_TOP.
# Convert it to an absolute path, since we cd into the tmp_dir to run the tests.
export OUT_DIR=${OUT_DIR:-out}
if [[ "$OUT_DIR" != /* ]]; then
    export OUT_DIR=$ANDROID_BUILD_TOP/$OUT_DIR
fi

# ANDROID_HOST_OUT is not set in a build environment.
if [ -z "$ANDROID_HOST_OUT" ]; then
    export ANDROID_HOST_OUT=${OUT_DIR}/host/linux-x86
fi

host_lib_root=${ANDROID_HOST_OUT}

# Allow changing DESUGAR script to something else, or to disable it with DESUGAR=false.
if [ -z "$DESUGAR" ]; then
  export DESUGAR="$ANDROID_BUILD_TOP/art/tools/desugar.sh"
fi

# Zipalign is not on the PATH in some configs, auto-detect it.
if [ -z "$ZIPALIGN" ]; then
  if which zipalign >/dev/null; then
    ZIPALIGN="zipalign";
  else
    # TODO: Add a dependency for zipalign in Android.run-test.mk
    # once it doesn't depend on libandroidfw (b/35246701)
    case "$OSTYPE" in
      darwin*)  ZIPALIGN="$ANDROID_BUILD_TOP/prebuilts/sdk/tools/darwin/bin/zipalign" ;;
      linux*)   ZIPALIGN="$ANDROID_BUILD_TOP/prebuilts/sdk/tools/linux/bin/zipalign" ;;
      *)        echo "Can't find zipalign: unknown: $OSTYPE" >&2;;
    esac
  fi
fi
export ZIPALIGN

# If hiddenapi was not set by the environment variable, assume it is in
# ANDROID_HOST_OUT.
if [ -z "$HIDDENAPI" ]; then
  export HIDDENAPI="${ANDROID_HOST_OUT}/bin/hiddenapi"
fi

chroot=

info="info.txt"
build="build"
run="run"
expected="expected.txt"
check_cmd="check"
output="output.txt"
build_output="build-output.txt"
cfg_output="graph.cfg"
strace_output="strace-output.txt"
lib="libartd.so"
testlib="arttestd"
run_args="--quiet"
build_args=""

quiet="no"
debuggable="no"
prebuild_mode="yes"
target_mode="yes"
dev_mode="no"
update_mode="no"
debug_mode="no"
relocate="no"
runtime="art"
usage="no"
build_only="no"
suffix64=""
trace="false"
trace_stream="false"
basic_verify="false"
gc_verify="false"
gc_stress="false"
jvmti_trace_stress="false"
jvmti_field_stress="false"
jvmti_step_stress="false"
jvmti_redefine_stress="false"
strace="false"
always_clean="no"
never_clean="no"
have_image="yes"
android_root="/system"
bisection_search="no"
suspend_timeout="500000"
image_suffix=""
run_optimizing="false"

# To cause tests to fail fast, limit the file sizes created by dx, dex2oat and
# ART output to approximately 128MB. This should be more than sufficient
# for any test while still catching cases of runaway output.
# Set a hard limit to encourage ART developers to increase the ulimit here if
# needed to support a test case rather than resetting the limit in the run
# script for the particular test in question. Adjust this if needed for
# particular configurations.
file_ulimit=128000

while true; do
    if [ "x$1" = "x--host" ]; then
        target_mode="no"
        DEX_LOCATION=$tmp_dir
        run_args="${run_args} --host"
        shift
    elif [ "x$1" = "x--quiet" ]; then
        quiet="yes"
        shift
    elif [ "x$1" = "x--use-java-home" ]; then
        if [ -n "${JAVA_HOME}" ]; then
          export JAVA="${JAVA_HOME}/bin/java"
          export JAVAC="${JAVA_HOME}/bin/javac -g"
        else
          echo "Passed --use-java-home without JAVA_HOME variable set!"
          usage="yes"
        fi
        shift
    elif [ "x$1" = "x--jvm" ]; then
        target_mode="no"
        DEX_LOCATION="$tmp_dir"
        runtime="jvm"
        prebuild_mode="no"
        NEED_DEX="false"
        run_args="${run_args} --jvm"
        shift
    elif [ "x$1" = "x-O" ]; then
        lib="libart.so"
        testlib="arttest"
        run_args="${run_args} -O"
        shift
    elif [ "x$1" = "x--dalvik" ]; then
        lib="libdvm.so"
        runtime="dalvik"
        shift
    elif [ "x$1" = "x--no-image" ]; then
        have_image="no"
        shift
    elif [ "x$1" = "x--relocate" ]; then
        relocate="yes"
        shift
    elif [ "x$1" = "x--no-relocate" ]; then
        relocate="no"
        shift
    elif [ "x$1" = "x--prebuild" ]; then
        run_args="${run_args} --prebuild"
        prebuild_mode="yes"
        shift;
    elif [ "x$1" = "x--compact-dex-level" ]; then
        option="$1"
        shift
        run_args="${run_args} $option $1"
        shift;
    elif [ "x$1" = "x--strip-dex" ]; then
        run_args="${run_args} --strip-dex"
        shift;
    elif [ "x$1" = "x--debuggable" ]; then
        run_args="${run_args} -Xcompiler-option --debuggable"
        debuggable="yes"
        shift;
    elif [ "x$1" = "x--no-prebuild" ]; then
        run_args="${run_args} --no-prebuild"
        prebuild_mode="no"
        shift;
    elif [ "x$1" = "x--gcverify" ]; then
        basic_verify="true"
        gc_verify="true"
        shift
    elif [ "x$1" = "x--gcstress" ]; then
        basic_verify="true"
        gc_stress="true"
        shift
    elif [ "x$1" = "x--jvmti-step-stress" ]; then
        jvmti_step_stress="true"
        shift
    elif [ "x$1" = "x--jvmti-redefine-stress" ]; then
        jvmti_redefine_stress="true"
        shift
    elif [ "x$1" = "x--jvmti-field-stress" ]; then
        jvmti_field_stress="true"
        shift
    elif [ "x$1" = "x--jvmti-trace-stress" ]; then
        jvmti_trace_stress="true"
        shift
    elif [ "x$1" = "x--suspend-timeout" ]; then
        shift
        suspend_timeout="$1"
        shift
    elif [ "x$1" = "x--image" ]; then
        shift
        image="$1"
        run_args="${run_args} --image $image"
        shift
    elif [ "x$1" = "x-Xcompiler-option" ]; then
        shift
        option="$1"
        run_args="${run_args} -Xcompiler-option $option"
        shift
    elif [ "x$1" = "x--build-option" ]; then
        shift
        option="$1"
        build_args="${build_args} $option"
        shift
    elif [ "x$1" = "x--runtime-option" ]; then
        shift
        option="$1"
        run_args="${run_args} --runtime-option $option"
        shift
    elif [ "x$1" = "x--gdb-arg" ]; then
        shift
        gdb_arg="$1"
        run_args="${run_args} --gdb-arg $gdb_arg"
        shift
    elif [ "x$1" = "x--debug" ]; then
        run_args="${run_args} --debug"
        shift
    elif [ "x$1" = "x--debug-wrap-agent" ]; then
        run_args="${run_args} --debug-wrap-agent"
        shift
    elif [ "x$1" = "x--with-agent" ]; then
        shift
        option="$1"
        run_args="${run_args} --with-agent $1"
        shift
    elif [ "x$1" = "x--debug-agent" ]; then
        shift
        option="$1"
        run_args="${run_args} --debug-agent $1"
        shift
    elif [ "x$1" = "x--gdb" ]; then
        run_args="${run_args} --gdb"
        dev_mode="yes"
        shift
    elif [ "x$1" = "x--gdbserver-bin" ]; then
        shift
        run_args="${run_args} --gdbserver-bin $1"
        shift
    elif [ "x$1" = "x--gdbserver-port" ]; then
        shift
        run_args="${run_args} --gdbserver-port $1"
        shift
    elif [ "x$1" = "x--gdbserver" ]; then
        run_args="${run_args} --gdbserver"
        dev_mode="yes"
        shift
    elif [ "x$1" = "x--strace" ]; then
        strace="yes"
        run_args="${run_args} --timeout 1800 --invoke-with strace --invoke-with -o --invoke-with $tmp_dir/$strace_output"
        shift
    elif [ "x$1" = "x--zygote" ]; then
        run_args="${run_args} --zygote"
        shift
    elif [ "x$1" = "x--interpreter" ]; then
        run_args="${run_args} --interpreter"
        image_suffix="-interpreter"
        shift
    elif [ "x$1" = "x--jit" ]; then
        run_args="${run_args} --jit"
        image_suffix="-interpreter"
        shift
    elif [ "x$1" = "x--baseline" ]; then
        run_args="${run_args} --baseline"
        shift
    elif [ "x$1" = "x--optimizing" ]; then
        run_optimizing="true"
        shift
    elif [ "x$1" = "x--no-verify" ]; then
        run_args="${run_args} --no-verify"
        shift
    elif [ "x$1" = "x--verify-soft-fail" ]; then
        run_args="${run_args} --verify-soft-fail"
        image_suffix="-interp-ac"
        shift
    elif [ "x$1" = "x--no-optimize" ]; then
        run_args="${run_args} --no-optimize"
        shift
    elif [ "x$1" = "x--no-precise" ]; then
        run_args="${run_args} --no-precise"
        shift
    elif [ "x$1" = "x--invoke-with" ]; then
        shift
        what="$1"
        if [ "x$what" = "x" ]; then
            echo "$0 missing argument to --invoke-with" 1>&2
            usage="yes"
            break
        fi
        run_args="${run_args} --invoke-with ${what}"
        shift
    elif [ "x$1" = "x--dev" ]; then
        run_args="${run_args} --dev"
        dev_mode="yes"
        shift
    elif [ "x$1" = "x--build-only" ]; then
        build_only="yes"
        shift
    elif [ "x$1" = "x--output-path" ]; then
        shift
        tmp_dir=$1
        if [ "x$tmp_dir" = "x" ]; then
            echo "$0 missing argument to --output-path" 1>&2
            usage="yes"
            break
        fi
        shift
    elif [ "x$1" = "x--chroot" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --chroot" 1>&2
            usage="yes"
            break
        fi
        chroot="$1"
        run_args="${run_args} --chroot $1"
        shift
    elif [ "x$1" = "x--android-root" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --android-root" 1>&2
            usage="yes"
            break
        fi
        android_root="$1"
        run_args="${run_args} --android-root $1"
        shift
    elif [ "x$1" = "x--android-runtime-root" ]; then
        shift
        if [ "x$1" = "x" ]; then
            echo "$0 missing argument to --android-runtime-root" 1>&2
            usage="yes"
            break
        fi
        run_args="${run_args} --android-runtime-root $1"
        shift
    elif [ "x$1" = "x--update" ]; then
        update_mode="yes"
        shift
    elif [ "x$1" = "x--help" ]; then
        usage="yes"
        shift
    elif [ "x$1" = "x--64" ]; then
        run_args="${run_args} --64"
        suffix64="64"
        shift
    elif [ "x$1" = "x--bionic" ]; then
        # soong linux_bionic builds are 64bit only.
        run_args="${run_args} --bionic --host --64"
        suffix64="64"
        target_mode="no"
        DEX_LOCATION=$tmp_dir
        host_lib_root=$OUT_DIR/soong/host/linux_bionic-x86
        shift
    elif [ "x$1" = "x--runtime-extracted-zipapex" ]; then
        shift
        # TODO Should we allow the java.library.path to search the zipapex too?
        # Not needed at the moment and adding it will be complicated so for now
        # we'll ignore this.
        run_args="${run_args} --host --runtime-extracted-zipapex $1"
        target_mode="no"
        DEX_LOCATION=$tmp_dir
        shift
    elif [ "x$1" = "x--runtime-zipapex" ]; then
        shift
        # TODO Should we allow the java.library.path to search the zipapex too?
        # Not needed at the moment and adding it will be complicated so for now
        # we'll ignore this.
        run_args="${run_args} --host --runtime-zipapex $1"
        target_mode="no"
        DEX_LOCATION=$tmp_dir
        # apex_payload.zip is quite large we need a high enough ulimit to
        # extract it. 512mb should be good enough.
        file_ulimit=512000
        shift
    elif [ "x$1" = "x--trace" ]; then
        trace="true"
        shift
    elif [ "x$1" = "x--stream" ]; then
        trace_stream="true"
        shift
    elif [ "x$1" = "x--always-clean" ]; then
        always_clean="yes"
        shift
    elif [ "x$1" = "x--never-clean" ]; then
        never_clean="yes"
        shift
    elif [ "x$1" = "x--dex2oat-swap" ]; then
        run_args="${run_args} --dex2oat-swap"
        shift
    elif [ "x$1" = "x--instruction-set-features" ]; then
        shift
        run_args="${run_args} --instruction-set-features $1"
        shift
    elif [ "x$1" = "x--bisection-search" ]; then
        bisection_search="yes"
        shift
    elif [ "x$1" = "x--vdex" ]; then
        run_args="${run_args} --vdex"
        shift
    elif [ "x$1" = "x--dm" ]; then
        run_args="${run_args} --dm"
        shift
    elif [ "x$1" = "x--vdex-filter" ]; then
        shift
        filter=$1
        run_args="${run_args} --vdex-filter $filter"
        shift
    elif [ "x$1" = "x--random-profile" ]; then
        run_args="${run_args} --random-profile"
        shift
    elif [ "x$1" = "x--dex2oat-jobs" ]; then
        shift
        run_args="${run_args} -Xcompiler-option -j$1"
        shift
    elif expr "x$1" : "x--" >/dev/null 2>&1; then
        echo "unknown $0 option: $1" 1>&2
        usage="yes"
        break
    else
        break
    fi
done

if [ "$usage" = "no" -a "x$1" = "x" ]; then
  echo "missing test to run" 1>&2
  usage="yes"
fi

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

# Allocate file descriptor real_stderr and redirect it to the shell's error
# output (fd 2).
if [ ${BASH_VERSINFO[1]} -ge 4 ] && [ ${BASH_VERSINFO[2]} -ge 1 ]; then
  exec {real_stderr}>&2
else
  # In bash before version 4.1 we need to do a manual search for free file
  # descriptors.
  FD=3
  while [ -e /dev/fd/$FD ]; do FD=$((FD + 1)); done
  real_stderr=$FD
  eval "exec ${real_stderr}>&2"
fi
if [ "$quiet" = "yes" ]; then
  # Force the default standard output and error to go to /dev/null so we will
  # not print them.
  exec 1>/dev/null
  exec 2>/dev/null
fi

function err_echo() {
  echo "$@" 1>&${real_stderr}
}

# tmp_dir may be relative, resolve.
#
# Cannot use realpath, as it does not exist on Mac.
# Cannot use a simple "cd", as the path might not be created yet.
# Cannot use readlink -m, as it does not exist on Mac.
# Fallback to nuclear option:
noncanonical_tmp_dir=$tmp_dir
tmp_dir="`cd $oldwd ; python -c "import os; print os.path.realpath('$tmp_dir')"`"
mkdir -p $tmp_dir

# Add thread suspend timeout flag
if [ ! "$runtime" = "jvm" ]; then
  run_args="${run_args} --runtime-option -XX:ThreadSuspendTimeout=$suspend_timeout"
fi

if [ "$basic_verify" = "true" ]; then
  # Set HspaceCompactForOOMMinIntervalMs to zero to run hspace compaction for OOM more frequently in tests.
  run_args="${run_args} --runtime-option -Xgc:preverify --runtime-option -Xgc:postverify --runtime-option -XX:HspaceCompactForOOMMinIntervalMs=0"
fi
if [ "$gc_verify" = "true" ]; then
  run_args="${run_args} --runtime-option -Xgc:preverify_rosalloc --runtime-option -Xgc:postverify_rosalloc"
fi
if [ "$gc_stress" = "true" ]; then
  run_args="${run_args} --gc-stress --runtime-option -Xgc:gcstress --runtime-option -Xms2m --runtime-option -Xmx16m"
fi
if [ "$jvmti_redefine_stress" = "true" ]; then
    run_args="${run_args} --no-app-image --jvmti-redefine-stress"
fi
if [ "$jvmti_step_stress" = "true" ]; then
    run_args="${run_args} --no-app-image --jvmti-step-stress"
fi
if [ "$jvmti_field_stress" = "true" ]; then
    run_args="${run_args} --no-app-image --jvmti-field-stress"
fi
if [ "$jvmti_trace_stress" = "true" ]; then
    run_args="${run_args} --no-app-image --jvmti-trace-stress"
fi
if [ "$trace" = "true" ]; then
    run_args="${run_args} --runtime-option -Xmethod-trace --runtime-option -Xmethod-trace-file-size:2000000"
    if [ "$trace_stream" = "true" ]; then
        # Streaming mode uses the file size as the buffer size. So output gets really large. Drop
        # the ability to analyze the file and just write to /dev/null.
        run_args="${run_args} --runtime-option -Xmethod-trace-file:/dev/null"
        # Enable streaming mode.
        run_args="${run_args} --runtime-option -Xmethod-trace-stream"
    else
        run_args="${run_args} --runtime-option -Xmethod-trace-file:${DEX_LOCATION}/trace.bin"
    fi
elif [ "$trace_stream" = "true" ]; then
    err_echo "Cannot use --stream without --trace."
    exit 1
fi

# Most interesting target architecture variables are Makefile variables, not environment variables.
# Try to map the suffix64 flag and what we find in ${ANDROID_PRODUCT_OUT}/data/art-test to an architecture name.
function guess_target_arch_name() {
    # Check whether this is a device with native bridge. Currently this is hardcoded
    # to x86 + arm.
    x86_arm=`ls ${ANDROID_PRODUCT_OUT}/data/art-test | sort | grep -E '^(arm|x86)$'`
    # Collapse line-breaks into spaces
    x86_arm=$(echo $x86_arm)
    if [ "x$x86_arm" = "xarm x86" ] ; then
        err_echo "Native-bridge configuration detected."
        # We only support the main arch for tests.
        if [ "x${suffix64}" = "x64" ]; then
            target_arch_name=""
        else
            target_arch_name=x86
        fi
    else
        grep32bit=`ls ${ANDROID_PRODUCT_OUT}/data/art-test | grep -E '^(arm|x86|mips)$'`
        grep64bit=`ls ${ANDROID_PRODUCT_OUT}/data/art-test | grep -E '^(arm64|x86_64|mips64)$'`
        if [ "x${suffix64}" = "x64" ]; then
            target_arch_name=${grep64bit}
        else
            target_arch_name=${grep32bit}
        fi
    fi
}

function guess_host_arch_name() {
    if [ "x${suffix64}" = "x64" ]; then
        host_arch_name="x86_64"
    else
        host_arch_name="x86"
    fi
}

if [ "$target_mode" = "no" ]; then
    if [ "$runtime" = "jvm" ]; then
        if [ "$prebuild_mode" = "yes" ]; then
            err_echo "--prebuild with --jvm is unsupported"
            exit 1
        fi
    else
        # ART/Dalvik host mode.
        if [ -n "$chroot" ]; then
            err_echo "--chroot with --host is unsupported"
            exit 1
        fi
    fi
fi

if [ ! "$runtime" = "jvm" ]; then
  run_args="${run_args} --lib $lib"
fi

if [ "$runtime" = "dalvik" ]; then
    if [ "$target_mode" = "no" ]; then
        framework="${ANDROID_PRODUCT_OUT}/system/framework"
        bpath="${framework}/core-libart.jar:${framework}/core-oj.jar:${framework}/conscrypt.jar:${framework}/okhttp.jar:${framework}/bouncycastle.jar:${framework}/ext.jar"
        run_args="${run_args} --boot --runtime-option -Xbootclasspath:${bpath}"
    else
        true # defaults to using target BOOTCLASSPATH
    fi
elif [ "$runtime" = "art" ]; then
    if [ "$target_mode" = "no" ]; then
        guess_host_arch_name
        run_args="${run_args} --boot ${ANDROID_HOST_OUT}/framework/core${image_suffix}.art"
        run_args="${run_args} --runtime-option -Djava.library.path=${host_lib_root}/lib${suffix64}:${host_lib_root}/nativetest${suffix64}"
    else
        guess_target_arch_name
        run_args="${run_args} --runtime-option -Djava.library.path=/data/nativetest${suffix64}/art/${target_arch_name}"
        run_args="${run_args} --boot /data/art-test/core${image_suffix}.art"
    fi
    if [ "$relocate" = "yes" ]; then
      run_args="${run_args} --relocate"
    else
      run_args="${run_args} --no-relocate"
    fi
elif [ "$runtime" = "jvm" ]; then
    # TODO: Detect whether the host is 32-bit or 64-bit.
    run_args="${run_args} --runtime-option -Djava.library.path=${ANDROID_HOST_OUT}/lib64:${ANDROID_HOST_OUT}/nativetest64"
fi

if [ "$have_image" = "no" ]; then
    if [ "$runtime" != "art" ]; then
        err_echo "--no-image is only supported on the art runtime"
        exit 1
    fi
    run_args="${run_args} --no-image"
fi

if [ "$dev_mode" = "yes" -a "$update_mode" = "yes" ]; then
    err_echo "--dev and --update are mutually exclusive"
    usage="yes"
fi

if [ "$dev_mode" = "yes" -a "$quiet" = "yes" ]; then
    err_echo "--dev and --quiet are mutually exclusive"
    usage="yes"
fi

if [ "$bisection_search" = "yes" -a "$prebuild_mode" = "yes" ]; then
    err_echo "--bisection-search and --prebuild are mutually exclusive"
    usage="yes"
fi

# TODO: Chroot-based bisection search is not supported yet (see below); implement it.
if [ "$bisection_search" = "yes" -a -n "$chroot" ]; then
  err_echo "--chroot with --bisection-search is unsupported"
  exit 1
fi

if [ "$usage" = "no" ]; then
    if [ "x$1" = "x" -o "x$1" = "x-" ]; then
        test_dir=`basename "$oldwd"`
    else
        test_dir="$1"
    fi

    if [ '!' -d "$test_dir" ]; then
        td2=`echo ${test_dir}-*`
        if [ '!' -d "$td2" ]; then
            err_echo "${test_dir}: no such test directory"
            usage="yes"
        fi
        test_dir="$td2"
    fi
    # Shift to get rid of the test name argument. The rest of the arguments
    # will get passed to the test run.
    shift
fi

if [ "$usage" = "yes" ]; then
    prog=`basename $prog`
    (
        echo "usage:"
        echo "  $prog --help                          Print this message."
        echo "  $prog [options] [test-name]           Run test normally."
        echo "  $prog --dev [options] [test-name]     Development mode" \
             "(dumps to stdout)."
        echo "  $prog --update [options] [test-name]  Update mode" \
             "(replaces expected.txt)."
        echo '  Omitting the test name or specifying "-" will use the' \
             "current directory."
        echo "  Runtime Options:"
        echo "    -O                    Run non-debug rather than debug build (off by default)."
        echo "    -Xcompiler-option     Pass an option to the compiler."
        echo "    --build-option        Pass an option to the build script."
        echo "    --runtime-option      Pass an option to the runtime."
        echo "    --compact-dex-level   Specify a compact dex level to the compiler."
        echo "    --debug               Wait for the default debugger to attach."
        echo "    --debug-agent <agent-path>"
        echo "                          Wait for the given debugger agent to attach. Currently"
        echo "                          only supported on host."
        echo "    --debug-wrap-agent    use libwrapagentproperties and tools/libjdwp-compat.props"
        echo "                          to load the debugger agent specified by --debug-agent."
        echo "    --with-agent <agent>  Run the test with the given agent loaded with -agentpath:"
        echo "    --debuggable          Whether to compile Java code for a debugger."
        echo "    --gdb                 Run under gdb; incompatible with some tests."
        echo "    --gdbserver           Start gdbserver (defaults to port :5039)."
        echo "    --gdbserver-port <port>"
        echo "                          Start gdbserver with the given COMM (see man gdbserver)."
        echo "    --gdbserver-bin <binary>"
        echo "                          Use the given binary as gdbserver."
        echo "    --gdb-arg             Pass an option to gdb or gdbserver."
        echo "    --build-only          Build test files only (off by default)."
        echo "    --interpreter         Enable interpreter only mode (off by default)."
        echo "    --jit                 Enable jit (off by default)."
        echo "    --optimizing          Enable optimizing compiler (default)."
        echo "    --no-verify           Turn off verification (on by default)."
        echo "    --verify-soft-fail    Force soft fail verification (off by default)."
        echo "                          Verification is enabled if neither --no-verify"
        echo "                          nor --verify-soft-fail is specified."
        echo "    --no-optimize         Turn off optimization (on by default)."
        echo "    --no-precise          Turn off precise GC (on by default)."
        echo "    --zygote              Spawn the process from the Zygote." \
             "If used, then the"
        echo "                          other runtime options are ignored."
        echo "    --no-dex2oat          Run as though dex2oat was failing."
        echo "    --prebuild            Run dex2oat on the files before starting test. (default)"
        echo "    --no-prebuild         Do not run dex2oat on the files before starting"
        echo "                          the test."
        echo "    --strip-dex           Strip the dex files before starting test."
        echo "    --relocate            Force the use of relocating in the test, making"
        echo "                          the image and oat files be relocated to a random"
        echo "                          address before running."
        echo "    --no-relocate         Force the use of no relocating in the test. (default)"
        echo "    --image               Run the test using a precompiled boot image. (default)"
        echo "    --no-image            Run the test without a precompiled boot image."
        echo "    --host                Use the host-mode virtual machine."
        echo "    --invoke-with         Pass --invoke-with option to runtime."
        echo "    --dalvik              Use Dalvik (off by default)."
        echo "    --jvm                 Use a host-local RI virtual machine."
        echo "    --use-java-home       Use the JAVA_HOME environment variable"
        echo "                          to find the java compiler and runtime"
        echo "                          (if applicable) to run the test with."
        echo "    --output-path [path]  Location where to store the build" \
             "files."
        echo "    --64                  Run the test in 64-bit mode"
        echo "    --bionic              Use the (host, 64-bit only) linux_bionic libc runtime"
        echo "    --runtime-zipapex [file]"
        echo "                          Use the given zipapex file to provide runtime binaries"
        echo "    --runtime-extracted-zipapex [dir]"
        echo "                          Use the given extracted zipapex directory to provide"
        echo "                          runtime binaries"
        echo "    --trace               Run with method tracing"
        echo "    --strace              Run with syscall tracing from strace."
        echo "    --stream              Run method tracing in streaming mode (requires --trace)"
        echo "    --gcstress            Run with gc stress testing"
        echo "    --gcverify            Run with gc verification"
        echo "    --jvmti-trace-stress  Run with jvmti method tracing stress testing"
        echo "    --jvmti-step-stress   Run with jvmti single step stress testing"
        echo "    --jvmti-redefine-stress"
        echo "                          Run with jvmti method redefinition stress testing"
        echo "    --always-clean        Delete the test files even if the test fails."
        echo "    --never-clean         Keep the test files even if the test succeeds."
        echo "    --chroot [newroot]    Run with root directory set to newroot."
        echo "    --android-root [path] The path on target for the android root. (/system by default)."
        echo "    --android-runtime-root [path]"
        echo "                          The path on target for the Android Runtime root."
        echo "                          (/apex/com.android.runtime by default)."
        echo "    --dex2oat-swap        Use a dex2oat swap file."
        echo "    --instruction-set-features [string]"
        echo "                          Set instruction-set-features for compilation."
        echo "    --quiet               Don't print anything except failure messages"
        echo "    --bisection-search    Perform bisection bug search."
        echo "    --vdex                Test using vdex as in input to dex2oat. Only works with --prebuild."
        echo "    --suspend-timeout     Change thread suspend timeout ms (default 500000)."
        echo "    --dex2oat-jobs        Number of dex2oat jobs."
    ) 1>&2  # Direct to stderr so usage is not printed if --quiet is set.
    exit 1
fi

cd "$test_dir"
test_dir=`pwd`

td_info="${test_dir}/${info}"
td_expected="${test_dir}/${expected}"

if [ ! -r $td_info ]; then
    err_echo "${test_dir}: missing file $td_info"
    exit 1
fi

if [ ! -r $td_expected ]; then
    err_echo "${test_dir}: missing file $td_expected"
    exit 1
fi

# copy the test to a temp dir and run it

echo "${test_dir}: building..." 1>&2

rm -rf "$tmp_dir"
cp -LRp "$test_dir" "$tmp_dir"
cd "$tmp_dir"

if [ '!' -r "$build" ]; then
    cp "${progdir}/etc/default-build" build
else
    cp "${progdir}/etc/default-build" .
fi

if [ '!' -r "$run" ]; then
    cp "${progdir}/etc/default-run" run
else
    cp "${progdir}/etc/default-run" .
fi

if [ '!' -r "$check_cmd" ]; then
    cp "${progdir}/etc/default-check" check
else
    cp "${progdir}/etc/default-check" .
fi

chmod 755 "$build"
chmod 755 "$run"
chmod 755 "$check_cmd"

export TEST_NAME=`basename ${test_dir}`

# Tests named '<number>-checker-*' will also have their CFGs verified with
# Checker when compiled with Optimizing on host.
if [[ "$TEST_NAME" =~ ^[0-9]+-checker- ]]; then
  if [ "$runtime" = "art" -a "$image_suffix" = "" -a "$run_optimizing" = "true" ]; then
    # In no-prebuild or no-image mode, the compiler only quickens so disable the checker.
    if [ "$prebuild_mode" = "yes" -a "$have_image" = "yes" ]; then
      run_checker="yes"

      if [ "$target_mode" = "no" ]; then
        cfg_output_dir="$tmp_dir"
        checker_args="--arch=${host_arch_name^^}"
      else
        cfg_output_dir="$DEX_LOCATION"
        checker_args="--arch=${target_arch_name^^}"
      fi

      if [ "$debuggable" = "yes" ]; then
        checker_args="$checker_args --debuggable"
      fi

      run_args="${run_args} -Xcompiler-option --dump-cfg=$cfg_output_dir/$cfg_output \
                            -Xcompiler-option -j1"
    fi
  fi
fi

run_args="${run_args} --testlib ${testlib}"

if ! ulimit -f ${file_ulimit}; then
  err_echo "ulimit file size setting failed"
fi

# Tell the build script which mode (target, host, jvm) we are building for
# to determine the bootclasspath at build time.
if [[ "$target_mode" == "yes" ]]; then
  build_args="$build_args --target"
else
  if [[ $runtime == "jvm" ]]; then
    build_args="$build_args --jvm"
  else
    build_args="$build_args --host"
  fi
fi

if [[ "$dev_mode" == "yes" ]]; then
  build_args="$build_args --dev"
fi

good="no"
good_build="yes"
good_run="yes"
export TEST_RUNTIME="${runtime}"
if [ "$dev_mode" = "yes" ]; then
    "./${build}" $build_args 2>&1
    build_exit="$?"
    echo "build exit status: $build_exit" 1>&2
    if [ "$build_exit" = '0' ]; then
        echo "${test_dir}: running..." 1>&2
        "./${run}" $run_args "$@" 2>&1
        run_exit="$?"

        if [ "$run_exit" = "0" ]; then
            if [ "$run_checker" = "yes" ]; then
                if [ "$target_mode" = "yes" ]; then
                  adb pull "$chroot/$cfg_output_dir/$cfg_output" &> /dev/null
                fi
                "$checker" $checker_args "$cfg_output" "$tmp_dir" 2>&1
                checker_exit="$?"
                if [ "$checker_exit" = "0" ]; then
                    good="yes"
                fi
                err_echo "checker exit status: $checker_exit"
            else
                good="yes"
            fi
        fi
        echo "run exit status: $run_exit" 1>&2
    fi
elif [ "$update_mode" = "yes" ]; then
    "./${build}" $build_args >"$build_output" 2>&1
    build_exit="$?"
    if [ "$build_exit" = '0' ]; then
        echo "${test_dir}: running..." 1>&2
        "./${run}" $run_args "$@" >"$output" 2>&1
        if [ "$run_checker" = "yes" ]; then
          if [ "$target_mode" = "yes" ]; then
            adb pull "$chroot/$cfg_output_dir/$cfg_output" &> /dev/null
          fi
          "$checker" -q $checker_args "$cfg_output" "$tmp_dir" >> "$output" 2>&1
        fi
        sed -e 's/[[:cntrl:]]$//g' < "$output" >"${td_expected}"
        good="yes"
    else
        cat "$build_output" 1>&${real_stderr} 1>&2
        err_echo "build exit status: $build_exit"
    fi
elif [ "$build_only" = "yes" ]; then
    good="yes"
    "./${build}" $build_args >"$build_output" 2>&1
    build_exit="$?"
    if [ "$build_exit" '!=' '0' ]; then
        cp "$build_output" "$output"
        echo "build exit status: $build_exit" >>"$output"
        diff --strip-trailing-cr -q "$expected" "$output" >/dev/null
        if [ "$?" '!=' "0" ]; then
            good="no"
            err_echo "BUILD FAILED For ${TEST_NAME}"
        fi
    fi
    # Clean up extraneous files that are not used by tests.
    find $tmp_dir -mindepth 1  ! -regex ".*/\(.*jar\|$output\|$expected\)" | xargs rm -rf
    exit 0
else
    "./${build}" $build_args >"$build_output" 2>&1
    build_exit="$?"
    if [ "$build_exit" = '0' ]; then
        echo "${test_dir}: running..." 1>&2
        "./${run}" $run_args "$@" >"$output" 2>&1
        run_exit="$?"
        if [ "$run_exit" != "0" ]; then
            err_echo "run exit status: $run_exit"
            good_run="no"
        elif [ "$run_checker" = "yes" ]; then
            if [ "$target_mode" = "yes" ]; then
              adb pull "$chroot/$cfg_output_dir/$cfg_output" &> /dev/null
            fi
            "$checker" -q $checker_args "$cfg_output" "$tmp_dir" >> "$output" 2>&1
            checker_exit="$?"
            if [ "$checker_exit" != "0" ]; then
                err_echo "checker exit status: $checker_exit"
                good_run="no"
            else
                good_run="yes"
            fi
        else
            good_run="yes"
        fi
    else
        good_build="no"
        cp "$build_output" "$output"
        echo "Failed to build in tmpdir=${tmp_dir} from oldwd=${oldwd} and cwd=`pwd`" >> "$output"
        echo "Non-canonical tmpdir was ${noncanonical_tmp_dir}" >> "$output"
        echo "Args: ${args}" >> "$output"
        echo "build exit status: $build_exit" >> "$output"
        max_name_length=$(getconf NAME_MAX ${tmp_dir})
        echo "Max filename (NAME_MAX): ${max_name_length}" >> "$output"
        max_path_length=$(getconf PATH_MAX ${tmp_dir})
        echo "Max pathlength (PATH_MAX): ${max_path_length}" >> "$output"
    fi
    ./$check_cmd "$expected" "$output"
    if [ "$?" = "0" ]; then
        if [ "$good_build" = "no" -o "$good_run" = "yes" ]; then
          # output == expected
          good="yes"
          echo "${test_dir}: succeeded!" 1>&2
        fi
    fi
fi

(
    if [ "$good" != "yes" -a "$update_mode" != "yes" ]; then
        echo "${test_dir}: FAILED!"
        echo ' '
        echo '#################### info'
        cat "${td_info}" | sed 's/^/# /g'
        echo '#################### diffs'
        diff --strip-trailing-cr -u "$expected" "$output" | tail -n 3000
        echo '####################'
        if [ "$strace" = "yes" ]; then
            echo '#################### strace output'
            tail -n 3000 "$tmp_dir/$strace_output"
            echo '####################'
        fi
        if [ "x$target_mode" = "xno" -a "x$SANITIZE_HOST" = "xaddress" ]; then
            # Run the stack script to symbolize any ASAN aborts on the host for SANITIZE_HOST. The
            # tools used by the given ABI work for both x86 and x86-64.
            echo "ABI: 'x86_64'" | cat - "$output" | $ANDROID_BUILD_TOP/development/scripts/stack | tail -n 3000
        fi
        echo ' '
    fi

) 2>&${real_stderr} 1>&2

# Attempt bisection only if the test failed.
# TODO: Implement support for chroot-based bisection search.
if [ "$bisection_search" = "yes" -a "$good" != "yes" ]; then
    # Bisecting works by skipping different optimization passes which breaks checker assertions.
    if [ "$run_checker" == "yes" ]; then
      echo "${test_dir}: not bisecting, checker test." 1>&2
    else
      # Increase file size limit, bisection search can generate large logfiles.
      echo "${test_dir}: bisecting..." 1>&2
      cwd=`pwd`
      maybe_device_mode=""
      raw_cmd=""
      if [ "$target_mode" = "yes" ]; then
        # Produce cmdline.sh in $chroot_dex_location. "$@" is passed as a runtime option
        # so that cmdline.sh forwards its arguments to dalvikvm. invoke-with is set
        # to exec in order to preserve pid when calling dalvikvm. This is required
        # for bisection search to correctly retrieve logs from device.
        "./${run}" $run_args --runtime-option '"$@"' --invoke-with exec --dry-run "$@" &> /dev/null
        adb shell chmod u+x "$chroot_dex_location/cmdline.sh"
        maybe_device_mode="--device"
        raw_cmd="$DEX_LOCATION/cmdline.sh"
      else
        raw_cmd="$cwd/${run} --external-log-tags $run_args $@"
      fi
      # TODO: Pass a `--chroot` option to the bisection_search.py script and use it there.
      $ANDROID_BUILD_TOP/art/tools/bisection_search/bisection_search.py \
        $maybe_device_mode \
        --raw-cmd="$raw_cmd" \
        --check-script="$cwd/check" \
        --expected-output="$cwd/expected.txt" \
        --logfile="$cwd/bisection_log.txt" \
        --timeout=300
    fi
fi

# Clean up test files.
if [ "$always_clean" = "yes" -o "$good" = "yes" ] && [ "$never_clean" = "no" ]; then
    cd "$oldwd"
    rm -rf "$tmp_dir"
    if [ "$target_mode" = "yes" -a "$build_exit" = "0" ]; then
        adb shell rm -rf $chroot_dex_location
    fi
    if [ "$good" = "yes" ]; then
        exit 0
    fi
fi


(
    if [ "$always_clean" = "yes" ]; then
        echo "${TEST_NAME} files deleted from host "
        if [ "$target_mode" == "yes" ]; then
            echo "and from target"
        fi
    else
        echo "${TEST_NAME} files left in ${tmp_dir} on host"
        if [ "$target_mode" == "yes" ]; then
            echo "and in ${chroot_dex_location} on target"
        fi
    fi

) 2>&${real_stderr} 1>&2

if [ "$never_clean" = "yes" ] && [ "$good" = "yes" ]; then
  exit 0
else
  exit 1
fi