samples ipc static_vrings: Convert to sysbuild

Convert this sample application build to sysbuild.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>

samples/subsys/ipc/ipc_service/static_vrings/CMakeLists.txt

@@ -6,27 +6,14 @@
 
 cmake_minimum_required(VERSION 3.20.0)
 
-set(REMOTE_ZEPHYR_DIR ${CMAKE_CURRENT_BINARY_DIR}/ipc_service_remote-prefix/src/ipc_service_remote-build/zephyr)
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 
-if("${BOARD}" STREQUAL "nrf5340dk_nrf5340_cpuapp")
-  set(BOARD_REMOTE "nrf5340dk_nrf5340_cpunet")
-else()
+if(NOT ("${BOARD}" STREQUAL "nrf5340dk_nrf5340_cpuapp"))
   message(FATAL_ERROR "${BOARD} is not supported for this sample")
 endif()
 
-find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 project(ipc_service)
 
 target_sources(app PRIVATE src/main.c)
 
 include(ExternalProject)
-
-ExternalProject_Add(
-  ipc_service_remote
-  SOURCE_DIR ${APPLICATION_SOURCE_DIR}/remote
-  INSTALL_COMMAND ""      # This particular build system has no install command
-  CMAKE_CACHE_ARGS -DBOARD:STRING=${BOARD_REMOTE}
-  BUILD_BYPRODUCTS "${REMOTE_ZEPHYR_DIR}/${KERNEL_BIN_NAME}"
-  # NB: Do we need to pass on more CMake variables?
-  BUILD_ALWAYS True
-)

samples/subsys/ipc/ipc_service/static_vrings/Kconfig.sysbuild

@@ -0,0 +1,9 @@
+# Copyright 2023 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+
+source "share/sysbuild/Kconfig"
+
+config NET_CORE_BOARD
+string
+	default "nrf5340dk_nrf5340_cpunet" if $(BOARD) = "nrf5340dk_nrf5340_cpuapp"

samples/subsys/ipc/ipc_service/static_vrings/README.rst

@@ -18,6 +18,7 @@ Building the application for nrf5340dk_nrf5340_cpuapp
    :zephyr-app: samples/subsys/ipc/ipc_service/static_vrings
    :board: nrf5340dk_nrf5340_cpuapp
    :goals: debug
+   :west-args: --sysbuild
 
 Open a serial terminal (minicom, putty, etc.) and connect the board with the
 following settings:

samples/subsys/ipc/ipc_service/static_vrings/remote/sample.yaml

@@ -1,9 +0,0 @@
-sample:
-  name: IPC Service example integration (OpenAMP static_vrings backend) (remote)
-tests:
-  sample.ipc.static_vrings_remote:
-    platform_allow: nrf5340dk_nrf5340_cpunet
-    integration_platforms:
-      - nrf5340dk_nrf5340_cpunet
-    tags: ipc
-    harness: remote

samples/subsys/ipc/ipc_service/static_vrings/sample.yaml

@@ -6,4 +6,5 @@ tests:
     integration_platforms:
       - nrf5340dk_nrf5340_cpuapp
     tags: ipc
+    sysbuild: true
     harness: remote

samples/subsys/ipc/ipc_service/static_vrings/sysbuild.cmake

@@ -0,0 +1,14 @@
+# Copyright (c) 2023 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+if("${SB_CONFIG_NET_CORE_BOARD}" STREQUAL "")
+	message(FATAL_ERROR
+	"Target ${BOARD} not supported for this sample. "
+	"There is no remote board selected in Kconfig.sysbuild")
+endif()
+
+ExternalZephyrProject_Add(
+	APPLICATION remote
+	SOURCE_DIR  ${APP_DIR}/remote
+	BOARD       ${SB_CONFIG_NET_CORE_BOARD}
+)