Add ethosu_monitor to core_software.

Change-Id: I9423c0c2a8aca738b2788ff5c41e946432188dc3
diff --git a/event_recorder.cmake b/event_recorder.cmake
new file mode 100644
index 0000000..3823896
--- /dev/null
+++ b/event_recorder.cmake
@@ -0,0 +1,32 @@
+#
+# Copyright (c) 2021 Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# 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
+#
+# 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.
+#
+
+add_library(event_recorder INTERFACE)
+
+target_include_directories(event_recorder INTERFACE
+    ${CMSIS_VIEW_PATH}/EventRecorder/Include
+    ${CMSIS_VIEW_PATH}/EventRecorder/Config)
+
+target_include_directories(event_recorder INTERFACE
+      ${CMSIS_VIEW_PATH}/EventRecorder/Config)
+
+target_link_libraries(event_recorder INTERFACE cmsis_device)
+target_sources(event_recorder INTERFACE
+      ${CMSIS_VIEW_PATH}/EventRecorder/Source/EventRecorder.c)
+
+target_compile_definitions(event_recorder INTERFACE RTE_Components_CMSIS_device_header=\"${ARM_CPU}${ARM_FEATURES}.h\")