diff --git a/tools/gcov.sh b/tools/gcov.sh
index 20d1a6a671..f6c64cd431 100755
--- a/tools/gcov.sh
+++ b/tools/gcov.sh
@@ -19,24 +19,57 @@
 # limitations under the License.
 #
 
-ROOT_DIR=$(cd $(dirname $0)/../../; pwd)
+ROOT_DIR=$(pwd)
+GCNO_DIR=$ROOT_DIR
+GCDA_DIR=$ROOT_DIR
 
 show_help() {
-    echo "Usage: $0 [-d gcov_dir] [-t gcov_tool]"
-    echo "  -d gcov_dir: directory to store gcov data and report"
+    echo "Usage: $0 [-t gcov_tool] [-s gcno_dir] [-a gcda_dir] [-x] [gcov_dir]"
     echo "  -t gcov_tool: path to gcov tool, e.g. ./nuttx/tools/gcov.sh -t arm-none-eabi-gcov"
+    echo "  -s gcno_dir: directory containing gcno files (relative or absolute path allowed)"
+    echo "  -a gcda_dir: directory containing gcda files (relative or absolute path allowed)"
+    echo "  -x: only copy *.gcno and *.gcda files"
+    echo "  gcov_dir: directory to store gcov data and report (optional)"
     exit 1
 }
 
-while getopts "d:t:h" opt
+convert_to_absolute_path() {
+    local dir_path=$1
+    if [ -z "$dir_path" ]; then
+        echo "Error: Directory path is empty."
+        exit 1
+    fi
+    # Convert to absolute path if not already
+    if [ ! "${dir_path:0:1}" = "/" ]; then
+        dir_path=$(realpath "$dir_path" 2>/dev/null)
+    fi
+    echo "$dir_path"
+}
+
+while getopts "a:s:t:xh" opt
+
 do
     case $opt in
-        d)
-            GCOV_DIR=$OPTARG
+        a)
+            GCDA_DIR=$(convert_to_absolute_path "$OPTARG")
+            if [ ! -d "$GCDA_DIR" ]; then
+                echo "Error: Invalid gcda directory: $OPTARG"
+                exit 1
+            fi
+            ;;
+        s)
+            GCNO_DIR=$(convert_to_absolute_path "$OPTARG")
+            if [ ! -d "$GCNO_DIR" ]; then
+                echo "Error: Invalid gcno directory: $OPTARG"
+                exit 1
+            fi
             ;;
         t)
             GCOV_TOOL="--gcov-tool $OPTARG"
             ;;
+        x)
+            ONLY_COPY=1
+            ;;
         h)
             show_help
             ;;
@@ -44,14 +77,41 @@ do
             show_help
             ;;
     esac
+
 done
 
-if [ $# == 1 ]; then
-    GCOV_DIR=$1
+# Handle gcov_dir as the last positional argument
+
+shift $((OPTIND - 1))
+if [ $# -gt 1 ]; then
+    echo "Error: Too many arguments."
+    show_help
+fi
+
+if [ $# -eq 1 ]; then
+    GCOV_DIR=$(convert_to_absolute_path "$1")
 else
     GCOV_DIR=${ROOT_DIR}/gcov
 fi
 
+mkdir -p ${GCOV_DIR} ${GCOV_DIR}/data
+cd ${GCOV_DIR}
+
+# Collect gcno files
+
+find ${GCNO_DIR}/ -name "*.gcno" -exec cp {} ${GCOV_DIR}/data > /dev/null 2>&1 \;
+
+# Collect gcda files
+
+find ${GCDA_DIR}/ -name "*.gcda" -exec cp {} ${GCOV_DIR}/data > /dev/null 2>&1 \;
+
+# Ensure ONLY_COPY is initialized as an integer
+ONLY_COPY=${ONLY_COPY:-0}
+
+if [ "$ONLY_COPY" -eq 1 ]; then
+    exit 0
+fi
+
 if [ -z "$GCOV_TOOL" ]; then
     echo "Error: -t is a required option."
     show_help
@@ -64,14 +124,6 @@ if [ $? -ne 0 ]; then
     exit 1
 fi
 
-mkdir -p ${GCOV_DIR} ${GCOV_DIR}/data
-cd ${GCOV_DIR}
-
-# Collect gcda/gcno files
-
-find ${ROOT_DIR}/ -name "*.gcno" -exec cp {} ${GCOV_DIR}/data > /dev/null 2>&1 \;
-find ${ROOT_DIR}/ -name "*.gcda" -exec cp {} ${GCOV_DIR}/data > /dev/null 2>&1 \;
-
 files=$(find ${GCOV_DIR}/data -name "*.gcda" 2> /dev/null | wc -l)
 if [ "$files" == "0" ] ;then
     echo "gcda file not found in directory ${ROOT_DIR}"