Fix warning about missing shared library symbols in android_gdbserver

platform_tools/android/bin/android_gdbserver

 #!/bin/bash
 #
 # android_gdbserver: Pushes gdbserver. Starts debugging environment.
 
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 source $SCRIPT_DIR/android_setup.sh
 source $SCRIPT_DIR/utils/setup_adb.sh
 
 APP_NAME=${APP_ARGS[0]}
 PORT=5039
@@ skipping 16 matching lines @@
 else
   SYSTEM_LIBRARY_PATH=/system/lib
 fi
 for library_file in \
     libc.so \
     libstdc++.so \
     libm.so \
     liblog.so \
     libz.so \
     libgccdemangle.so \
-    libcorkscrew.so \
+    libsigchain.so \
+    libcutils.so \
+    libunwind.so \
+    libunwind-ptrace.so \
+    libbacktrace.so \
     libutils.so \
     libstlport.so \
     libGLES_trace.so \
     libEGL.so \
     libGLESv2.so \
     ; do
-    adb_pull_if_needed "${SYSTEM_LIBRARY_PATH}/${library_file}" $GDB_TMP_DIR
+    ANDROID_LS=`$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
 
-adb_pull_if_needed /system/bin/linker $GDB_TMP_DIR
+if [[ $ANDROID_ARCH == *64* ]]; 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..."
 for file in \
     "${BUILD_DIR}/skia_launcher" \
     "${BUILD_DIR}/lib/libskia_android.so" \
     "${BUILD_DIR}/lib/lib${APP_NAME}.so" \
     ; do
     cp "$file" $GDB_TMP_DIR
     adb_push_if_needed "$file" /data/local/tmp
 done
 
 echo "Pushing gdbserver..."
 adb_push_if_needed $ANDROID_TOOLCHAIN/../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."
 $ADB shell ps | grep gdbserver | awk '{print $2}' | xargs $ADB shell kill
 $ADB shell ps | grep ${APP_NAME} | awk '{print $2}' | xargs $ADB shell kill
 
 # Starting up gdbserver in android shell
 echo "Starting gdbserver with command: ${APP_ARGS[@]}"
 $ADB shell LD_LIBRARY_PATH=/data/local/tmp:\$LD_LIBRARY_PATH /data/local/tmp/gdbserver :5039 /data/local/tmp/skia_launcher ${APP_ARGS[@]} &