diff --git a/envsetup.sh b/envsetup.sh
new file mode 100644
index 0000000..016c399
--- /dev/null
+++ b/envsetup.sh
@@ -0,0 +1,1037 @@
+function help() {
+cat <<EOF
+Invoke ". build/envsetup.sh" from your shell to add the following functions to your environment:
+- croot:   Changes directory to the top of the tree.
+- m:       Makes from the top of the tree.
+- mm:      Builds all of the modules in the current directory.
+- mmm:     Builds all of the modules in the supplied directories.
+- cgrep:   Greps on all local C/C++ files.
+- jgrep:   Greps on all local Java files.
+- resgrep: Greps on all local res/*.xml files.
+- godir:   Go to the directory containing a file.
+
+Look at the source to view more functions. The complete list is:
+EOF
+    T=$(gettop)
+    local A
+    A=""
+    for i in `cat $T/build/envsetup.sh | sed -n "/^function /s/function \([a-z_]*\).*/\1/p" | sort`; do
+      A="$A $i"
+    done
+    echo $A
+}
+
+# Get the value of a build variable as an absolute path.
+function get_abs_build_var()
+{
+    T=$(gettop)
+    if [ ! "$T" ]; then
+        echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
+        return
+    fi
+    CALLED_FROM_SETUP=true BUILD_SYSTEM=build/core \
+      make --no-print-directory -C "$T" -f build/core/config.mk dumpvar-abs-$1
+}
+
+# Get the exact value of a build variable.
+function get_build_var()
+{
+    T=$(gettop)
+    if [ ! "$T" ]; then
+        echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
+        return
+    fi
+    CALLED_FROM_SETUP=true BUILD_SYSTEM=build/core \
+      make --no-print-directory -C "$T" -f build/core/config.mk dumpvar-$1
+}
+
+# check to see if the supplied product is one we can build
+function check_product()
+{
+    T=$(gettop)
+    if [ ! "$T" ]; then
+        echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
+        return
+    fi
+    CALLED_FROM_SETUP=true BUILD_SYSTEM=build/core \
+        TARGET_PRODUCT=$1 TARGET_BUILD_VARIANT= \
+        TARGET_SIMULATOR= TARGET_BUILD_TYPE= \
+        get_build_var TARGET_DEVICE > /dev/null
+    # hide successful answers, but allow the errors to show
+}
+
+VARIANT_CHOICES=(user userdebug eng)
+
+# check to see if the supplied variant is valid
+function check_variant()
+{
+    for v in ${VARIANT_CHOICES[@]}
+    do
+        if [ "$v" = "$1" ]
+        then
+            return 0
+        fi
+    done
+    return 1
+}
+
+function setpaths()
+{
+    T=$(gettop)
+    if [ ! "$T" ]; then
+        echo "Couldn't locate the top of the tree.  Try setting TOP."
+        return
+    fi
+
+    ##################################################################
+    #                                                                #
+    #              Read me before you modify this code               #
+    #                                                                #
+    #   This function sets ANDROID_BUILD_PATHS to what it is adding  #
+    #   to PATH, and the next time it is run, it removes that from   #
+    #   PATH.  This is required so lunch can be run more than once   #
+    #   and still have working paths.                                #
+    #                                                                #
+    ##################################################################
+
+    # out with the old
+    if [ -n $ANDROID_BUILD_PATHS ] ; then
+        export PATH=${PATH/$ANDROID_BUILD_PATHS/}
+    fi
+
+    # and in with the new
+    CODE_REVIEWS=
+    prebuiltdir=$(getprebuilt)
+    export ANDROID_EABI_TOOLCHAIN=$prebuiltdir/toolchain/arm-eabi-4.2.1/bin
+    export ANDROID_TOOLCHAIN=$ANDROID_EABI_TOOLCHAIN
+    export ANDROID_QTOOLS=$T/development/emulator/qtools
+    export ANDROID_BUILD_PATHS=:$(get_build_var ANDROID_BUILD_PATHS):$ANDROID_QTOOLS:$ANDROID_TOOLCHAIN:$ANDROID_EABI_TOOLCHAIN$CODE_REVIEWS
+    export PATH=$PATH$ANDROID_BUILD_PATHS
+
+    unset ANDROID_PRODUCT_OUT
+    export ANDROID_PRODUCT_OUT=$(get_abs_build_var PRODUCT_OUT)
+    export OUT=$ANDROID_PRODUCT_OUT
+
+    # needed for building linux on MacOS
+    # TODO: fix the path
+    #export HOST_EXTRACFLAGS="-I "$T/system/kernel_headers/host_include
+
+    # needed for OProfile to post-process collected samples
+    export OPROFILE_EVENTS_DIR=$prebuiltdir/oprofile
+}
+
+function printconfig()
+{
+    T=$(gettop)
+    if [ ! "$T" ]; then
+        echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
+        return
+    fi
+    get_build_var report_config
+}
+
+function set_stuff_for_environment()
+{
+    settitle
+    setpaths
+    set_sequence_number
+
+    # Don't try to do preoptimization until it works better on OSX.
+    export DISABLE_DEXPREOPT=true
+
+    export ANDROID_BUILD_TOP=$(gettop)
+}
+
+function set_sequence_number()
+{
+    export BUILD_ENV_SEQUENCE_NUMBER=9
+}
+
+function settitle()
+{
+    if [ "$STAY_OFF_MY_LAWN" = "" ]; then
+        local product=$(get_build_var TARGET_PRODUCT)
+        local variant=$(get_build_var TARGET_BUILD_VARIANT)
+        export PROMPT_COMMAND="echo -ne \"\033]0;[${product}-${variant}] ${USER}@${HOSTNAME}: ${PWD}\007\""
+    fi
+}
+
+case `uname -s` in
+    Linux)
+        function choosesim()
+        {
+            echo "Build for the simulator or the device?"
+            echo "     1. Device"
+            echo "     2. Simulator"
+            echo
+
+            export TARGET_SIMULATOR=
+            local ANSWER
+            while [ -z $TARGET_SIMULATOR ]
+            do
+                echo -n "Which would you like? [1] "
+                if [ -z "$1" ] ; then
+                    read ANSWER
+                else
+                    echo $1
+                    ANSWER=$1
+                fi
+                case $ANSWER in
+                "")
+                    export TARGET_SIMULATOR=false
+                    ;;
+                1)
+                    export TARGET_SIMULATOR=false
+                    ;;
+                Device)
+                    export TARGET_SIMULATOR=false
+                    ;;
+                2)
+                    export TARGET_SIMULATOR=true
+                    ;;
+                Simulator)
+                    export TARGET_SIMULATOR=true
+                    ;;
+                *)
+                    echo
+                    echo "I didn't understand your response.  Please try again."
+                    echo
+                    ;;
+                esac
+                if [ -n "$1" ] ; then
+                    break
+                fi
+            done
+
+            set_stuff_for_environment
+        }
+        ;;
+    *)
+        function choosesim()
+        {
+            echo "Only device builds are supported for" `uname -s`
+            echo "     Forcing TARGET_SIMULATOR=false"
+            echo
+            if [ -z "$1" ]
+            then
+                echo -n "Press enter: "
+                read
+            fi
+
+            export TARGET_SIMULATOR=false
+            set_stuff_for_environment
+        }
+        ;;
+esac
+
+function choosetype()
+{
+    echo "Build type choices are:"
+    echo "     1. release"
+    echo "     2. debug"
+    echo
+
+    local DEFAULT_NUM DEFAULT_VALUE
+    if [ $TARGET_SIMULATOR = "false" ] ; then
+        DEFAULT_NUM=1
+        DEFAULT_VALUE=release
+    else
+        DEFAULT_NUM=2
+        DEFAULT_VALUE=debug
+    fi
+
+    export TARGET_BUILD_TYPE=
+    local ANSWER
+    while [ -z $TARGET_BUILD_TYPE ]
+    do
+        echo -n "Which would you like? ["$DEFAULT_NUM"] "
+        if [ -z "$1" ] ; then
+            read ANSWER
+        else
+            echo $1
+            ANSWER=$1
+        fi
+        case $ANSWER in
+        "")
+            export TARGET_BUILD_TYPE=$DEFAULT_VALUE
+            ;;
+        1)
+            export TARGET_BUILD_TYPE=release
+            ;;
+        release)
+            export TARGET_BUILD_TYPE=release
+            ;;
+        2)
+            export TARGET_BUILD_TYPE=debug
+            ;;
+        debug)
+            export TARGET_BUILD_TYPE=debug
+            ;;
+        *)
+            echo
+            echo "I didn't understand your response.  Please try again."
+            echo
+            ;;
+        esac
+        if [ -n "$1" ] ; then
+            break
+        fi
+    done
+
+    set_stuff_for_environment
+}
+
+#
+# This function isn't really right:  It chooses a TARGET_PRODUCT
+# based on the list of boards.  Usually, that gets you something
+# that kinda works with a generic product, but really, you should
+# pick a product by name.
+#
+function chooseproduct()
+{
+    # Find the makefiles that must exist for a product.
+    # Send stderr to /dev/null in case partner isn't present.
+    local -a choices
+    choices=(`/bin/ls build/target/board/*/BoardConfig.mk vendor/*/*/BoardConfig.mk 2> /dev/null`)
+
+    local choice
+    local -a prodlist
+    for choice in ${choices[@]}
+    do
+        # The product name is the name of the directory containing
+        # the makefile we found, above.
+        prodlist=(${prodlist[@]} `dirname ${choice} | xargs basename`)
+    done
+
+    local index=1
+    local p
+    echo "Product choices are:"
+    for p in ${prodlist[@]}
+    do
+        echo "     $index. $p"
+        let "index = $index + 1"
+    done
+
+
+    if [ "x$TARGET_PRODUCT" != x ] ; then
+        default_value=$TARGET_PRODUCT
+    else
+        if [ "$TARGET_SIMULATOR" = true ] ; then
+            default_value=sim
+        else
+            default_value=generic
+        fi
+    fi
+
+    export TARGET_PRODUCT=
+    local ANSWER
+    while [ -z "$TARGET_PRODUCT" ]
+    do
+        echo "You can also type the name of a product if you know it."
+        echo -n "Which would you like? [$default_value] "
+        if [ -z "$1" ] ; then
+            read ANSWER
+        else
+            echo $1
+            ANSWER=$1
+        fi
+
+        if [ -z "$ANSWER" ] ; then
+            export TARGET_PRODUCT=$default_value
+        elif (echo -n $ANSWER | grep -q -e "^[0-9][0-9]*$") ; then
+            local poo=`echo -n $ANSWER`
+            if [ $poo -le ${#prodlist[@]} ] ; then
+                export TARGET_PRODUCT=${prodlist[$(($ANSWER-$_arrayoffset))]}
+            else
+                echo "** Bad product selection: $ANSWER"
+            fi
+        else
+            if check_product $ANSWER
+            then
+                export TARGET_PRODUCT=$ANSWER
+            else
+                echo "** Not a valid product: $ANSWER"
+            fi
+        fi
+        if [ -n "$1" ] ; then
+            break
+        fi
+    done
+
+    set_stuff_for_environment
+}
+
+function choosevariant()
+{
+    echo "Variant choices are:"
+    local index=1
+    local v
+    for v in ${VARIANT_CHOICES[@]}
+    do
+        # The product name is the name of the directory containing
+        # the makefile we found, above.
+        echo "     $index. $v"
+        index=$(($index+1))
+    done
+
+    local default_value=eng
+    local ANSWER
+
+    export TARGET_BUILD_VARIANT=
+    while [ -z "$TARGET_BUILD_VARIANT" ]
+    do
+        echo -n "Which would you like? [$default_value] "
+        if [ -z "$1" ] ; then
+            read ANSWER
+        else
+            echo $1
+            ANSWER=$1
+        fi
+
+        if [ -z "$ANSWER" ] ; then
+            export TARGET_BUILD_VARIANT=$default_value
+        elif (echo -n $ANSWER | grep -q -e "^[0-9][0-9]*$") ; then
+            if [ "$ANSWER" -le "${#VARIANT_CHOICES[@]}" ] ; then
+                export TARGET_BUILD_VARIANT=${VARIANT_CHOICES[$(($ANSWER-$_arrayoffset))]}
+            fi
+        else
+            if check_variant $ANSWER
+            then
+                export TARGET_BUILD_VARIANT=$ANSWER
+            else
+                echo "** Not a valid variant: $ANSWER"
+            fi
+        fi
+        if [ -n "$1" ] ; then
+            break
+        fi
+    done
+}
+
+function tapas()
+{
+    choosecombo
+}
+
+function choosecombo()
+{
+    choosesim $1
+
+    echo
+    echo
+    choosetype $2
+
+    echo
+    echo
+    chooseproduct $3
+
+    echo
+    echo
+    choosevariant $4
+
+    echo
+    set_stuff_for_environment
+    printconfig
+}
+
+# Clear this variable.  It will be built up again when the vendorsetup.sh
+# files are included at the end of this file.
+unset LUNCH_MENU_CHOICES
+function add_lunch_combo()
+{
+    local new_combo=$1
+    local c
+    for c in ${LUNCH_MENU_CHOICES[@]} ; do
+        if [ "$new_combo" = "$c" ] ; then
+            return
+        fi
+    done
+    LUNCH_MENU_CHOICES=(${LUNCH_MENU_CHOICES[@]} $new_combo)
+}
+
+# add the default one here
+add_lunch_combo generic-eng
+
+# if we're on linux, add the simulator.  There is a special case
+# in lunch to deal with the simulator
+if [ "$(uname)" = "Linux" ] ; then
+    add_lunch_combo simulator
+fi
+
+function print_lunch_menu()
+{
+    local uname=$(uname)
+    echo
+    echo "You're building on" $uname
+    echo
+    echo ${LUNCH_MENU_CHOICES[@]}
+    echo "Lunch menu... pick a combo:"
+
+    local i=1
+    local choice
+    for choice in ${LUNCH_MENU_CHOICES[@]}
+    do
+        echo "     $i. $choice"
+        i=$(($i+1))
+    done
+
+    echo
+}
+
+function lunch()
+{
+    local answer
+
+    if [ "$1" ] ; then
+        answer=$1
+    else
+        print_lunch_menu
+        echo -n "Which would you like? [generic-eng] "
+        read answer
+    fi
+
+    local selection=
+
+    if [ -z "$answer" ]
+    then
+        selection=generic-eng
+    elif [ "$answer" = "simulator" ]
+    then
+        selection=simulator
+    elif (echo -n $answer | grep -q -e "^[0-9][0-9]*$")
+    then
+        if [ $answer -le ${#LUNCH_MENU_CHOICES[@]} ]
+        then
+            selection=${LUNCH_MENU_CHOICES[$(($answer-$_arrayoffset))]}
+        fi
+    elif (echo -n $answer | grep -q -e "^[^\-][^\-]*-[^\-][^\-]*$")
+    then
+        selection=$answer
+    fi
+
+    if [ -z "$selection" ]
+    then
+        echo
+        echo "Invalid lunch combo: $answer"
+        return 1
+    fi
+
+    # special case the simulator
+    if [ "$selection" = "simulator" ]
+    then
+        export TARGET_PRODUCT=sim
+        export TARGET_BUILD_VARIANT=eng
+        export TARGET_SIMULATOR=true
+        export TARGET_BUILD_TYPE=debug
+    else
+        local product=$(echo -n $selection | sed -e "s/-.*$//")
+        check_product $product
+        if [ $? -ne 0 ]
+        then
+            echo
+            echo "** Don't have a product spec for: '$product'"
+            echo "** Do you have the right repo manifest?"
+            product=
+        fi
+
+        local variant=$(echo -n $selection | sed -e "s/^[^\-]*-//")
+        check_variant $variant
+        if [ $? -ne 0 ]
+        then
+            echo
+            echo "** Invalid variant: '$variant'"
+            echo "** Must be one of ${VARIANT_CHOICES[@]}"
+            variant=
+        fi
+
+        if [ -z "$product" -o -z "$variant" ]
+        then
+            echo
+            return 1
+        fi
+
+        export TARGET_PRODUCT=$product
+        export TARGET_BUILD_VARIANT=$variant
+        export TARGET_SIMULATOR=false
+        export TARGET_BUILD_TYPE=release
+    fi # !simulator
+
+    echo
+
+    set_stuff_for_environment
+    printconfig
+}
+
+function gettop
+{
+    local TOPFILE=build/core/envsetup.mk
+    if [ -n "$TOP" -a -f "$TOP/$TOPFILE" ] ; then
+        echo $TOP
+    else
+        if [ -f $TOPFILE ] ; then
+            echo $PWD
+        else
+            # We redirect cd to /dev/null in case it's aliased to
+            # a command that prints something as a side-effect
+            # (like pushd)
+            local HERE=$PWD
+            T=
+            while [ \( ! \( -f $TOPFILE \) \) -a \( $PWD != "/" \) ]; do
+                cd .. > /dev/null
+                T=$PWD
+            done
+            cd $HERE > /dev/null
+            if [ -f "$T/$TOPFILE" ]; then
+                echo $T
+            fi
+        fi
+    fi
+}
+
+function m()
+{
+    T=$(gettop)
+    if [ "$T" ]; then
+        make -C $T $@
+    else
+        echo "Couldn't locate the top of the tree.  Try setting TOP."
+    fi
+}
+
+function findmakefile()
+{
+    TOPFILE=build/core/envsetup.mk
+    # We redirect cd to /dev/null in case it's aliased to
+    # a command that prints something as a side-effect
+    # (like pushd)
+    local HERE=$PWD
+    T=
+    while [ \( ! \( -f $TOPFILE \) \) -a \( $PWD != "/" \) ]; do
+        T=$PWD
+        if [ -f "$T/Android.mk" ]; then
+            echo $T/Android.mk
+            cd $HERE > /dev/null
+            return
+        fi
+        cd .. > /dev/null
+    done
+    cd $HERE > /dev/null
+}
+
+function mm()
+{
+    # If we're sitting in the root of the build tree, just do a
+    # normal make.
+    if [ -f build/core/envsetup.mk -a -f Makefile ]; then
+        make $@
+    else
+        # Find the closest Android.mk file.
+        T=$(gettop)
+        local M=$(findmakefile)
+        if [ ! "$T" ]; then
+            echo "Couldn't locate the top of the tree.  Try setting TOP."
+        elif [ ! "$M" ]; then
+            echo "Couldn't locate a makefile from the current directory."
+        else
+            ONE_SHOT_MAKEFILE=$M make -C $T files $@
+        fi
+    fi
+}
+
+function mmm()
+{
+    T=$(gettop)
+    if [ "$T" ]; then
+        local MAKEFILE=
+        local ARGS=
+        local DIR TO_CHOP
+        local DASH_ARGS=$(echo "$@" | awk -v RS=" " -v ORS=" " '/^-.*$/')
+        local DIRS=$(echo "$@" | awk -v RS=" " -v ORS=" " '/^[^-].*$/')
+        for DIR in $DIRS ; do
+            DIR=`echo $DIR | sed -e 's:/$::'`
+            if [ -f $DIR/Android.mk ]; then
+                TO_CHOP=`echo $T | wc -c | tr -d ' '`
+                TO_CHOP=`expr $TO_CHOP + 1`
+                MFILE=`echo $PWD | cut -c${TO_CHOP}-`
+                if [ "$MFILE" = "" ] ; then
+                    MFILE=$DIR/Android.mk
+                else
+                    MFILE=$MFILE/$DIR/Android.mk
+                fi
+                MAKEFILE="$MAKEFILE $MFILE"
+            else
+                if [ "$DIR" = snod ]; then
+                    ARGS="$ARGS snod"
+                elif [ "$DIR" = showcommands ]; then
+                    ARGS="$ARGS showcommands"
+                else
+                    echo "No Android.mk in $DIR."
+                fi
+            fi
+        done
+        ONE_SHOT_MAKEFILE="$MAKEFILE" make -C $T $DASH_ARGS files $ARGS
+    else
+        echo "Couldn't locate the top of the tree.  Try setting TOP."
+    fi
+}
+
+function croot()
+{
+    T=$(gettop)
+    if [ "$T" ]; then
+        cd $(gettop)
+    else
+        echo "Couldn't locate the top of the tree.  Try setting TOP."
+    fi
+}
+
+function pid()
+{
+   local EXE="$1"
+   if [ "$EXE" ] ; then
+       local PID=`adb shell ps | fgrep $1 | sed -e 's/[^ ]* *\([0-9]*\).*/\1/'`
+       echo "$PID"
+   else
+       echo "usage: pid name"
+   fi
+}
+
+function gdbclient()
+{
+   local OUT_ROOT=$(get_abs_build_var PRODUCT_OUT)
+   local OUT_SYMBOLS=$(get_abs_build_var TARGET_OUT_UNSTRIPPED)
+   local OUT_SO_SYMBOLS=$(get_abs_build_var TARGET_OUT_SHARED_LIBRARIES_UNSTRIPPED)
+   local OUT_EXE_SYMBOLS=$(get_abs_build_var TARGET_OUT_EXECUTABLES_UNSTRIPPED)
+   local PREBUILTS=$(get_abs_build_var ANDROID_PREBUILTS)
+   if [ "$OUT_ROOT" -a "$PREBUILTS" ]; then
+       local EXE="$1"
+       if [ "$EXE" ] ; then
+           EXE=$1
+       else
+           EXE="app_process"
+       fi
+
+       local PORT="$2"
+       if [ "$PORT" ] ; then
+           PORT=$2
+       else
+           PORT=":5039"
+       fi
+
+       local PID
+       local PROG="$3"
+       if [ "$PROG" ] ; then
+           PID=`pid $3`
+           adb forward "tcp$PORT" "tcp$PORT"
+           adb shell gdbserver $PORT --attach $PID &
+           sleep 2
+       else
+               echo ""
+               echo "If you haven't done so already, do this first on the device:"
+               echo "    gdbserver $PORT /system/bin/$EXE"
+                   echo " or"
+               echo "    gdbserver $PORT --attach $PID"
+               echo ""
+       fi
+
+       echo >|"$OUT_ROOT/gdbclient.cmds" "set solib-absolute-prefix $OUT_SYMBOLS"
+       echo >>"$OUT_ROOT/gdbclient.cmds" "set solib-search-path $OUT_SO_SYMBOLS"
+       echo >>"$OUT_ROOT/gdbclient.cmds" "target remote $PORT"
+       echo >>"$OUT_ROOT/gdbclient.cmds" ""
+
+       arm-eabi-gdb -x "$OUT_ROOT/gdbclient.cmds" "$OUT_EXE_SYMBOLS/$EXE"
+  else
+       echo "Unable to determine build system output dir."
+   fi
+
+}
+
+case `uname -s` in
+    Darwin)
+        function sgrep()
+        {
+            find -E . -type f -iregex '.*\.(c|h|cpp|S|java|xml)' -print0 | xargs -0 grep --color -n "$@"
+        }
+
+        ;;
+    *)
+        function sgrep()
+        {
+            find . -type f -iregex '.*\.\(c\|h\|cpp\|S\|java\|xml\)' -print0 | xargs -0 grep --color -n "$@"
+        }
+        ;;
+esac
+
+function jgrep()
+{
+    find . -type f -name "*\.java" -print0 | xargs -0 grep --color -n "$@"
+}
+
+function cgrep()
+{
+    find . -type f -name "*\.c*" -print0 | xargs -0 grep --color -n "$@"
+}
+
+function resgrep()
+{
+    for dir in `find . -name res -type d`; do find $dir -type f -name '*\.xml' -print0 | xargs -0 grep --color -n "$@"; done;
+}
+
+case `uname -s` in
+    Darwin)
+        function mgrep()
+        {
+            find -E . -type f -iregex '.*/(Makefile|Makefile\..*|.*\.make|.*\.mak|.*\.mk)' -print0 | xargs -0 grep --color -n "$@"
+        }
+
+        function treegrep()
+        {
+            find -E . -type f -iregex '.*\.(c|h|cpp|S|java|xml)' -print0 | xargs -0 grep --color -n -i "$@"
+        }
+
+        ;;
+    *)
+        function mgrep()
+        {
+            find . -regextype posix-egrep -iregex '(.*\/Makefile|.*\/Makefile\..*|.*\.make|.*\.mak|.*\.mk)' -type f -print0 | xargs -0 grep --color -n "$@"
+        }
+
+        function treegrep()
+        {
+            find . -regextype posix-egrep -iregex '.*\.(c|h|cpp|S|java|xml)' -type f -print0 | xargs -0 grep --color -n -i "$@"
+        }
+
+        ;;
+esac
+
+function getprebuilt
+{
+    get_abs_build_var ANDROID_PREBUILTS
+}
+
+function tracedmdump()
+{
+    T=$(gettop)
+    if [ ! "$T" ]; then
+        echo "Couldn't locate the top of the tree.  Try setting TOP."
+        return
+    fi
+    local prebuiltdir=$(getprebuilt)
+    local KERNEL=$T/prebuilt/android-arm/vmlinux-qemu
+
+    local TRACE=$1
+    if [ ! "$TRACE" ] ; then
+        echo "usage:  tracedmdump  tracename"
+        return
+    fi
+
+    local BASETRACE=$(basename $TRACE)
+    if [ "$BASETRACE" = "$TRACE" ] ; then
+        TRACE=$ANDROID_PRODUCT_OUT/traces/$TRACE
+    fi
+
+    echo "post-processing traces..."
+    rm -f $TRACE/qtrace.dexlist
+    post_trace $TRACE
+    if [ $? -ne 0 ]; then
+        echo "***"
+        echo "*** Error: malformed trace.  Did you remember to exit the emulator?"
+        echo "***"
+        return
+    fi
+    echo "generating dexlist output..."
+    /bin/ls $ANDROID_PRODUCT_OUT/system/framework/*.jar $ANDROID_PRODUCT_OUT/system/app/*.apk $ANDROID_PRODUCT_OUT/data/app/*.apk 2>/dev/null | xargs dexlist > $TRACE/qtrace.dexlist
+    echo "generating dmtrace data..."
+    q2dm -r $ANDROID_PRODUCT_OUT/symbols $TRACE $KERNEL $TRACE/dmtrace || return
+    echo "generating html file..."
+    dmtracedump -h $TRACE/dmtrace >| $TRACE/dmtrace.html || return
+    echo "done, see $TRACE/dmtrace.html for details"
+    echo "or run:"
+    echo "    traceview $TRACE/dmtrace"
+}
+
+# communicate with a running device or emulator, set up necessary state,
+# and run the hat command.
+function runhat()
+{
+    # process standard adb options
+    local adbTarget=""
+    if [ $1 = "-d" -o $1 = "-e" ]; then
+        adbTarget=$1
+        shift 1
+    elif [ $1 = "-s" ]; then
+        adbTarget="$1 $2"
+        shift 2
+    fi
+    local adbOptions=${adbTarget}
+    echo adbOptions = ${adbOptions}
+
+    # runhat options
+    local targetPid=$1
+    local outputFile=$2
+
+    if [ "$targetPid" = "" ]; then
+        echo "Usage: runhat [ -d | -e | -s serial ] target-pid [output-file]"
+        return
+    fi
+
+    # confirm hat is available
+    if [ -z $(which hat) ]; then
+        echo "hat is not available in this configuration."
+        return
+    fi
+
+    adb ${adbOptions} shell >/dev/null mkdir /data/misc
+    adb ${adbOptions} shell chmod 777 /data/misc
+
+    # send a SIGUSR1 to cause the hprof dump
+    echo "Poking $targetPid and waiting for data..."
+    adb ${adbOptions} shell kill -10 $targetPid
+    echo "Press enter when logcat shows \"hprof: heap dump completed\""
+    echo -n "> "
+    read
+
+    local availFiles=( $(adb ${adbOptions} shell ls /data/misc | grep '^heap-dump' | sed -e 's/.*heap-dump-/heap-dump-/' | sort -r | tr '[:space:][:cntrl:]' ' ') )
+    local devFile=/data/misc/${availFiles[0]}
+    local localFile=/tmp/$$-hprof
+
+    echo "Retrieving file $devFile..."
+    adb ${adbOptions} pull $devFile $localFile
+
+    adb ${adbOptions} shell rm $devFile
+
+    echo "Running hat on $localFile"
+    echo "View the output by pointing your browser at http://localhost:7000/"
+    echo ""
+    hat $localFile
+}
+
+function getbugreports()
+{
+    local reports=(`adb shell ls /sdcard/bugreports | tr -d '\r'`)
+
+    if [ ! "$reports" ]; then
+        echo "Could not locate any bugreports."
+        return
+    fi
+
+    local report
+    for report in ${reports[@]}
+    do
+        echo "/sdcard/bugreports/${report}"
+        adb pull /sdcard/bugreports/${report} ${report}
+        gunzip ${report}
+    done
+}
+
+function startviewserver()
+{
+    local port=4939
+    if [ $# -gt 0 ]; then
+            port=$1
+    fi
+    adb shell service call window 1 i32 $port
+}
+
+function stopviewserver()
+{
+    adb shell service call window 2
+}
+
+function isviewserverstarted()
+{
+    adb shell service call window 3
+}
+
+function smoketest()
+{
+    if [ ! "$ANDROID_PRODUCT_OUT" ]; then
+        echo "Couldn't locate output files.  Try running 'lunch' first." >&2
+        return
+    fi
+    T=$(gettop)
+    if [ ! "$T" ]; then
+        echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
+        return
+    fi
+
+    (cd "$T" && mmm tests/SmokeTest) &&
+      adb uninstall com.android.smoketest > /dev/null &&
+      adb uninstall com.android.smoketest.tests > /dev/null &&
+      adb install $ANDROID_PRODUCT_OUT/data/app/SmokeTestApp.apk &&
+      adb install $ANDROID_PRODUCT_OUT/data/app/SmokeTest.apk &&
+      adb shell am instrument -w com.android.smoketest.tests/android.test.InstrumentationTestRunner
+}
+
+# simple shortcut to the runtest command
+function runtest()
+{
+    T=$(gettop)
+    if [ ! "$T" ]; then
+        echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
+        return
+    fi
+    (cd "$T" && development/tools/runtest $@)
+}
+
+function godir () {
+    if [[ -z "$1" ]]; then
+        echo "Usage: godir <regex>"
+        return
+    fi
+    if [[ ! -f $T/filelist ]]; then
+        echo -n "Creating index..."
+        (cd $T; find . -wholename ./out -prune -o -type f > filelist)
+        echo " Done"
+        echo ""
+    fi
+    local lines
+    lines=($(grep "$1" $T/filelist | sed -e 's/\/[^/]*$//' | sort | uniq)) 
+    if [[ ${#lines[@]} = 0 ]]; then
+        echo "Not found"
+        return
+    fi
+    local pathname
+    local choice
+    if [[ ${#lines[@]} > 1 ]]; then
+        while [[ -z "$pathname" ]]; do
+            local index=1
+            local line
+            for line in ${lines[@]}; do
+                printf "%6s %s\n" "[$index]" $line
+                index=$(($index + 1)) 
+            done
+            echo
+            echo -n "Select one: "
+            unset choice
+            read choice
+            if [[ $choice -gt ${#lines[@]} || $choice -lt 1 ]]; then
+                echo "Invalid choice"
+                continue
+            fi
+            pathname=${lines[$(($choice-$_arrayoffset))]}
+        done
+    else
+        # even though zsh arrays are 1-based, $foo[0] is an alias for $foo[1]
+        pathname=${lines[0]}
+    fi
+    cd $T/$pathname
+}
+
+# determine whether arrays are zero-based (bash) or one-based (zsh)
+_xarray=(a b c)
+if [ -z "${_xarray[${#_xarray[@]}]}" ]
+then
+    _arrayoffset=1
+else
+    _arrayoffset=0
+fi
+unset _xarray
+
+# Execute the contents of any vendorsetup.sh files we can find.
+for f in `/bin/ls vendor/*/vendorsetup.sh 2> /dev/null`
+do
+    echo "including $f"
+    . $f
+done
+unset f