diff --git a/core/filter_symbols.sh b/core/filter_symbols.sh
new file mode 100644
index 0000000..ba5057a
--- /dev/null
+++ b/core/filter_symbols.sh
@@ -0,0 +1,25 @@
+NM=$1
+
+shift
+
+PREFIX=$1
+
+shift
+
+SUFFIX=$1
+
+shift
+
+while test "$1" != ""
+do
+    $NM -g -fp $1 | while read -a line
+    do
+	type=${line[1]}
+	# if [[ "$type" != "V" && "$type" != "U" ]]; then
+	#if [[ "$type" != "W" && "$type" != "V" && "$type" != "U" ]]; then
+	    echo "$PREFIX${line[0]}$SUFFIX # ${line[1]}"
+	#fi
+    done
+
+    shift
+done