#!/bin/bash
#
# android_gdb_native: Pushes gdbserver, connects to specified Skia app,
#                     and enters command line debugging environment.

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

# setup the gdbserver
export BUILDTYPE  # from android_setup.sh
$SCRIPT_DIR/android_gdbserver -d ${DEVICE_ID} ${APP_ARGS[@]}

# quit if gdbserver setup failed
if [[ "$?" != "0" ]]; then
  echo "ERROR: gdbserver failed to setup properly."
  exit 1
fi

# Wait for gdbserver
sleep 2

# variables that must match those in gdb_server
GDB_TMP_DIR=$(pwd)/android_gdb_tmp
APP_NAME=${APP_ARGS[0]}
PORT=5039

# Set up gdb commands
GDBSETUP=$GDB_TMP_DIR/gdb.setup
{
    echo "file ${GDB_TMP_DIR}/skia_launcher"
    echo "target remote :${PORT}"
    echo "set solib-absolute-prefix ${GDB_TMP_DIR}"
    echo "set solib-search-path ${GDB_TMP_DIR}"

    # The apps shared library symbols are not loaded by default so we
    # load them here.
    echo "break launch_app"
    echo "continue"
    echo "sharedLibrary ${APP_NAME}"

    # Load libskia_android.so here.
    echo "sharedLibrary skia_android"
} > $GDBSETUP


# Launch gdb client
echo "Entering gdb client shell"
GDB_COMMAND=$(command ls "$ANDROID_TOOLCHAIN"/*-gdb | head -n1)
"$GDB_COMMAND" -x $GDBSETUP

# Clean up:
# We could 'rm -rf $GDB_TMP_DIR', but doing so would cause subsequent debugging
# sessions to take longer than necessary. The tradeoff is to now force the user
# to remove the directory when they are done debugging.
rm $GDBSETUP