#!/bin/bash
#
# android_gdbserver: Pushes gdbserver. Starts debugging environment.

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source $SCRIPT_DIR/utils/android_setup.sh
source $SCRIPT_DIR/utils/setup_adb.sh

APP_NAME=${APP_ARGS[0]}

TARGET_EXE="${SKIA_OUT}/${APP_NAME}"
if [ ! -f "$TARGET_EXE" ]
then
  echo "Unable to find ${TARGET_EXE}."
  exit 1
fi

IS_64_BIT="false"
GN_TARGET_CPU=$(grep target_cpu ${SKIA_OUT}/args.gn)
if [ -z "$GN_TARGET_CPU"]; then
  IS_64_BIT="true"
elif [[ $GN_TARGET_CPU == *64* ]]; then
  IS_64_BIT="true"
fi

# We need the debug symbols from these files
GDB_TMP_DIR=$SKIA_OUT/android_gdb_tmp
mkdir -p $GDB_TMP_DIR

echo "Copying symbol files"
if [[ $IS_64_BIT == "true" ]]; then
  SYSTEM_LIBRARY_PATH=/system/lib64
  echo "64 bit!"
else
  SYSTEM_LIBRARY_PATH=/system/lib
fi
for library_file in \
    libc.so \
    libc++.so \
    libstdc++.so \
    libm.so \
    liblog.so \
    libz.so \
    libsigchain.so \
    libcutils.so \
    libunwind.so \
    libbacktrace.so \
    libutils.so \
    libEGL.so \
    libGLESv2.so \
    ; do
    ANDROID_LS=`$ADB $DEVICE_SERIAL shell ls -ld ${SYSTEM_LIBRARY_PATH}/${library_file}`
    if [ "${ANDROID_LS:0:1}" == "-" ]; then
      adb_pull_if_needed "${SYSTEM_LIBRARY_PATH}/${library_file}" $GDB_TMP_DIR
    fi
done

if [[ $IS_64_BIT == "true" ]]; then
  adb_pull_if_needed /system/bin/linker64 $GDB_TMP_DIR
else
  adb_pull_if_needed /system/bin/linker $GDB_TMP_DIR
fi

echo "Pushing app..."
cp "$TARGET_EXE" $GDB_TMP_DIR
adb_push_if_needed "${TARGET_EXE}" /data/local/tmp

echo "Pushing gdbserver..."
adb_push_if_needed $SKIA_OUT/gdbserver /data/local/tmp

echo "Setting up port forward"
$ADB forward "tcp:5039" "tcp:5039"

# Kill all previous instances of gdbserver and the app to rid all port overriding errors.
echo "Killing any running Skia processes."
set +e
$ADB shell ps | grep gdbserver | awk '{print $2}' | xargs $ADB shell kill 2> /dev/null
$ADB shell ps | grep ${APP_NAME} | awk '{print $2}' | xargs $ADB shell kill 2> /dev/null
set -e

# Starting up gdbserver in android shell
echo "Starting gdbserver with command: ${APP_ARGS[@]}"
$ADB shell /data/local/tmp/gdbserver :5039 /data/local/tmp/${APP_ARGS[@]} &