Replacement for gdbclient
Differences between this implementation and the old one:
1. Resolves symbols/gdb based on device information (lunch
target is irrelevant)
2. Works with downloaded from build-server symbols
3. Does not require user to specify exe file - detects it automatically
Bug: 18208329
(cherry picked from commit 9b8e4b3772)
Change-Id: I13ae2debb6e2d827b9aa55e93864b5d60c2bd32e
This commit is contained in:
Dmitriy Ivanov
parent
4c93719e30
commit
fd0f1c848f
1 changed files with 142 additions and 1 deletions
143
envsetup.sh
143
envsetup.sh
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@ -1051,10 +1051,151 @@ function is64bit()
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fi
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}
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function adb_get_product_device() {
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echo `adb shell getprop ro.product.device | sed s/.$//`
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}
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# returns 0 when process is not traced
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function adb_get_traced_by() {
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echo `adb shell cat /proc/$1/status | grep -e "^TracerPid:" | sed "s/^TracerPid:\t//" | sed s/.$//`
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}
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function gdbclient() {
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# TODO:
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# 1. Check for ANDROID_SERIAL/multiple devices
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local PROCESS_NAME="n/a"
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local PID=$1
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local PORT=5039
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if [ -z "$PID" ]; then
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echo "Usage: gdbclient <pid|processname> [port number]"
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return -1
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fi
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local DEVICE=$(adb_get_product_device)
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if [ -z "$DEVICE" ]; then
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echo "Error: Unable to get device name. Please check if device is connected and ANDROID_SERIAL is set."
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return -2
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fi
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if [ -n "$2" ]; then
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PORT=$2
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fi
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local ROOT=$(gettop)
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if [ -z "$ROOT" ]; then
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# This is for the situation with downloaded symbols (from the build server)
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# we check if they are available.
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ROOT=`realpath .`
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fi
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local OUT_ROOT="$ROOT/out/target/product/$DEVICE"
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local SYMBOLS_DIR="$OUT_ROOT/symbols"
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if [ ! -d $SYMBOLS_DIR ]; then
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echo "Error: couldn't find symbols: $SYMBOLS_DIR does not exist or is not a directory."
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return -3
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fi
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# let's figure out which executable we are about to debug
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# check if user specified a name -> resolve to pid
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if [[ ! "$PID" =~ ^[0-9]+$ ]] ; then
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PROCESS_NAME=$PID
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PID=$(pid --exact $PROCESS_NAME)
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if [ -z "$PID" ]; then
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echo "Error: couldn't resolve pid by process name: $PROCESS_NAME"
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return -4
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fi
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fi
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local EXE=`adb shell readlink /proc/$PID/exe | sed s/.$//`
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# TODO: print error in case there is no such pid
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local LOCAL_EXE_PATH=$SYMBOLS_DIR$EXE
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if [ ! -f $LOCAL_EXE_PATH ]; then
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echo "Error: unable to find symbols for executable $EXE: file $LOCAL_EXE_PATH does not exist"
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return -5
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fi
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local USE64BIT=""
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if [[ "$(file $LOCAL_EXE_PATH)" =~ 64-bit ]]; then
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USE64BIT="64"
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fi
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local GDB=
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local GDB64=
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local CPU_ABI=`adb shell getprop ro.product.cpu.abilist | sed s/.$//`
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# TODO: we assume these are available via $PATH
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if [[ $CPU_ABI =~ (^|,)arm64 ]]; then
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GDB=arm-linux-androideabi-gdb
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GDB64=aarch64-linux-android-gdb
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elif [[ $CPU_ABI =~ (^|,)arm ]]; then
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GDB=arm-linux-androideabi-gdb
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elif [[ $CPU_ABI =~ (^|,)x86_64 ]]; then
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GDB=x86_64-linux-androideabi-gdb
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elif [[ $CPU_ABI =~ (^|,)x86 ]]; then
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GDB=x86_64-linux-androideabi-gdb
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elif [[ $CPU_ABI =~ (^|,)mips64 ]]; then
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GDB=mipsel-linux-android-gdb
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GDB64=mips64el-linux-android-gdb
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elif [[ $CPU_ABI =~ (^|,)mips ]]; then
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GDB=mipsel-linux-android-gdb
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else
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echo "Error: unrecognized cpu.abilist: $CPU_ABI"
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return -6
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fi
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# TODO: check if tracing process is gdbserver and not some random strace...
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if [ $(adb_get_traced_by $PID) -eq 0 ]; then
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# start gdbserver
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echo "Starting gdbserver..."
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# TODO: check if adb is already listening $PORT
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# to avoid unnecessary calls
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echo ". adb forward for port=$PORT..."
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adb forward tcp:$PORT tcp:$PORT
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echo ". starting gdbserver to attach to pid=$PID..."
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adb shell gdbserver$USE64BIT :$PORT --attach $PID &
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echo ". give it couple of seconds to start..."
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sleep 2
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echo ". done"
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else
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echo "It looks like gdbserver is already attached to $PID (process is traced), trying to connect to it using local port=$PORT"
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fi
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local OUT_SO_SYMBOLS=$SYMBOLS_DIR/system/lib$USE64BIT
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local OUT_VENDOR_SO_SYMBOLS=$SYMBOLS_DIR/vendor/lib$USE64BIT
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local ART_CMD=""
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echo >|"$OUT_ROOT/gdbclient.cmds" "set solib-absolute-prefix $SYMBOLS_DIR"
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echo >>"$OUT_ROOT/gdbclient.cmds" "set solib-search-path $OUT_SO_SYMBOLS:$OUT_SO_SYMBOLS/hw:$OUT_SO_SYMBOLS/ssl/engines:$OUT_SO_SYMBOLS/drm:$OUT_SO_SYMBOLS/egl:$OUT_SO_SYMBOLS/soundfx:$OUT_VENDOR_SO_SYMBOLS:$OUT_VENDOR_SO_SYMBOLS/hw:$OUT_VENDOR_SO_SYMBOLS/egl"
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local DALVIK_GDB_SCRIPT=$ROOT/development/scripts/gdb/dalvik.gdb
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if [ -f $DALVIK_GDB_SCRIPT ]; then
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echo >>"$OUT_ROOT/gdbclient.cmds" "source $DALVIK_GDB_SCRIPT"
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ART_CMD="art-on"
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else
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echo "Warning: couldn't find $DALVIK_GDB_SCRIPT - ART debugging options will not be available"
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fi
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echo >>"$OUT_ROOT/gdbclient.cmds" "target remote :$PORT"
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if [[ $EXE =~ (^|/)(app_process|dalvikvm)(|32|64)$ ]]; then
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echo >> "$OUT_ROOT/gdbclient.cmds" $ART_CMD
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fi
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echo >>"$OUT_ROOT/gdbclient.cmds" ""
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local WHICH_GDB=$GDB
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if [ -n "$USE64BIT" -a -n "$GDB64" ]; then
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WHICH_GDB=$GDB64
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fi
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gdbwrapper $WHICH_GDB "$OUT_ROOT/gdbclient.cmds" "$LOCAL_EXE_PATH"
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}
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# gdbclient now determines whether the user wants to debug a 32-bit or 64-bit
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# executable, set up the approriate gdbserver, then invokes the proper host
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# gdb.
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function gdbclient()
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function gdbclient_old()
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{
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local OUT_ROOT=$(get_abs_build_var PRODUCT_OUT)
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local OUT_SYMBOLS=$(get_abs_build_var TARGET_OUT_UNSTRIPPED)
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