From 43bc7e99d6453cdd0e925ae5128574012f5198e0 Mon Sep 17 00:00:00 2001
From: Filipe Cavalcanti <filipe.cavalcanti@espressif.com>
Date: Wed, 20 May 2026 13:22:49 +0200
Subject: [PATCH] system/nxdiag: add CMake support for NXDiag tool

Supports building NXDiag with CMake.

Signed-off-by: Filipe Cavalcanti <filipe.cavalcanti@espressif.com>
---
 system/nxdiag/CMakeLists.txt | 102 +++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 system/nxdiag/CMakeLists.txt

diff --git a/system/nxdiag/CMakeLists.txt b/system/nxdiag/CMakeLists.txt
new file mode 100644
index 000000000..ec0cd116c
--- /dev/null
+++ b/system/nxdiag/CMakeLists.txt
@@ -0,0 +1,102 @@
+# ##############################################################################
+# apps/system/nxdiag/CMakeLists.txt
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements.  See the NOTICE file distributed with this work for
+# additional information regarding copyright ownership.  The ASF licenses this
+# file to you 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.
+#
+# ##############################################################################
+
+if(CONFIG_SYSTEM_NXDIAG)
+
+  find_program(PYTHON3 python3)
+  if(NOT PYTHON3)
+    message(FATAL_ERROR "python3 not found in PATH (required for nxdiag)")
+  endif()
+
+  set(NXDIAG_TOOLSDIR ${NUTTX_DIR}/tools)
+  set(NXDIAG_SYSINFO ${CMAKE_CURRENT_SOURCE_DIR}/sysinfo.h)
+
+  # Build host_info_dump.py argument list
+
+  set(NXDIAG_FLAGS ${NUTTX_DIR})
+
+  if(CONFIG_SYSTEM_NXDIAG_CONF)
+    list(APPEND NXDIAG_FLAGS --config)
+  endif()
+
+  if(CONFIG_SYSTEM_NXDIAG_COMP_FLAGS)
+    list(APPEND NXDIAG_FLAGS --flags "${CMAKE_C_FLAGS}" "${CMAKE_CXX_FLAGS}"
+         "${CMAKE_EXE_LINKER_FLAGS}")
+  endif()
+
+  if(CONFIG_SYSTEM_NXDIAG_HOST_PACKAGES)
+    list(APPEND NXDIAG_FLAGS --packages)
+  endif()
+
+  if(CONFIG_SYSTEM_NXDIAG_HOST_MODULES)
+    list(APPEND NXDIAG_FLAGS --modules)
+  endif()
+
+  if(CONFIG_SYSTEM_NXDIAG_HOST_PATH)
+    list(APPEND NXDIAG_FLAGS --path)
+  endif()
+
+  if(CONFIG_SYSTEM_NXDIAG_VERBOSE)
+    list(APPEND NXDIAG_FLAGS --verbose)
+  endif()
+
+  set(NXDIAG_PY_FLAGS "")
+
+  # Vendor-specific checks
+
+  if(CONFIG_SYSTEM_NXDIAG_ESPRESSIF)
+    list(APPEND NXDIAG_FLAGS --target_info)
+    list(APPEND NXDIAG_PY_FLAGS -B)
+  endif()
+
+  # Generate sysinfo.h
+
+  add_custom_command(
+    OUTPUT ${NXDIAG_SYSINFO}
+    COMMAND ${PYTHON3} ${NXDIAG_PY_FLAGS} ${NXDIAG_TOOLSDIR}/host_info_dump.py
+            ${NXDIAG_FLAGS} -b ${CMAKE_BINARY_DIR} > ${NXDIAG_SYSINFO}
+    DEPENDS ${NXDIAG_TOOLSDIR}/host_info_dump.py
+    COMMENT "Generating nxdiag sysinfo.h"
+    VERBATIM)
+
+  add_custom_target(nxdiag_sysinfo_gen DEPENDS ${NXDIAG_SYSINFO})
+
+  nuttx_add_application(
+    NAME
+    nxdiag
+    SRCS
+    nxdiag.c
+    PRIORITY
+    ${CONFIG_SYSTEM_NXDIAG_PRIORITY}
+    STACKSIZE
+    ${CONFIG_SYSTEM_NXDIAG_STACKSIZE}
+    INCLUDE_DIRECTORIES
+    ${CMAKE_CURRENT_BINARY_DIR}
+    DEPENDS
+    nxdiag_sysinfo_gen)
+
+  set_property(
+    DIRECTORY ${CMAKE_SOURCE_DIR}
+    APPEND
+    PROPERTY ADDITIONAL_CLEAN_FILES ${NXDIAG_SYSINFO})
+
+endif()