[CI] Add check for running xor-wrapper target

diff --git a/.github/scripts/build/run-xor.sh b/.github/scripts/build/run-xor.sh
new file mode 100644
index 0000000..7e6a7c8
--- /dev/null
+++ b/.github/scripts/build/run-xor.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
+export UPRJ_ROOT=$(pwd)
+cd ..
+export PDK_ROOT=$(pwd)/pdks
+export IMAGE_NAME=efabless/openlane:$OPENLANE_TAG
+
+cd $UPRJ_ROOT
+
+LOG_FILE=out.log
+docker run -v $UPRJ_ROOT:$UPRJ_ROOT -v $PDK_ROOT:$PDK_ROOT -e UPRJ_ROOT=$UPRJ_ROOT -e PDK_ROOT=$PDK_ROOT -u $(id -u $USER):$(id -g $USER) $IMAGE_NAME bash -c "cd $UPRJ_ROOT; export USER_ID=$USER_ID; make xor-wrapper | tee $LOG_FILE;"
+
+exit 0

diff --git a/.github/workflows/caravel_example_ci.yml b/.github/workflows/caravel_example_ci.yml
index 02886c5..76ef215 100644
--- a/.github/workflows/caravel_example_ci.yml
+++ b/.github/workflows/caravel_example_ci.yml

@@ -142,4 +142,27 @@
        - name: Run Set User ID
          run: bash ${GITHUB_WORKSPACE}/.github/scripts/build/run-set-id.sh 
          env: 
-          OPENLANE_TAG: v0.12
\ No newline at end of file
+          OPENLANE_TAG: v0.12
+
+  xor_wrapper:
+    runs-on: ubuntu-latest
+    steps:
+       - uses: actions/checkout@v2
+         with:
+          submodules: 'true'
+      
+       - name: Set up QEMU
+         uses: docker/setup-qemu-action@v1
+
+       - name: Set up Docker Buildx
+         uses: docker/setup-buildx-action@v1
+        
+       - name: Install The PDK
+         run:  bash ${GITHUB_WORKSPACE}/.github/scripts/dv/pdkBuild.sh
+         env: 
+          OPENLANE_TAG: v0.12
+
+       - name: Run XOR Check
+         run: bash ${GITHUB_WORKSPACE}/.github/scripts/build/run-xor.sh 
+         env: 
+          OPENLANE_TAG: v0.12

diff --git a/caravel b/caravel
index 26224fe..3d78839 160000
--- a/caravel
+++ b/caravel

@@ -1 +1 @@
-Subproject commit 26224fe25e746aa4219d9c7a57d752175449812a
+Subproject commit 3d78839648ae5e228739af3785cc2f378d636114