1 files changed, 78 insertions, 0 deletions
diff --git a/test/freertos/cmake/CMakeLists.txt b/test/freertos/cmake/CMakeLists.txt
new file mode 100644
index 00000000..a8c07d8d
--- /dev/null
+++ b/test/freertos/cmake/CMakeLists.txt
@@ -0,0 +1,78 @@
+##############################################################################
+# Copyright (C) 2026 Eclipse ThreadX contributors
+#
+# This program and the accompanying materials are made available under the
+# terms of the MIT License which is available at
+# https://opensource.org/licenses/MIT.
+#
+# AI Disclosure: This file was largely AI-generated by Claude Code (Opus 5).
+# The AI-generated portions may be considered public domain (CC0-1.0)
+# and not subject to the project's licence. The human contributor has
+# reviewed and verified that the code is correct.
+#
+# SPDX-License-Identifier: MIT and CC0-1.0
+##############################################################################
+
+cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
+cmake_policy(SET CMP0054 NEW)
+cmake_policy(SET CMP0057 NEW)
+
+project(threadx_freertos_test LANGUAGES C)
+
+set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_C_EXTENSIONS OFF)
+
+# The suite intercepts the ThreadX entry points with the linker's --wrap, which
+# is a GNU ld and lld feature.  There is no MSVC equivalent, so the suite is
+# built on Linux only and the build stops early elsewhere rather than failing
+# later with confusing link errors.
+if(NOT CMAKE_C_COMPILER_ID MATCHES "GNU|Clang")
+  message(FATAL_ERROR
+          "The FreeRTOS compatibility layer tests require GNU ld or lld for "
+          "--wrap support and are supported on Linux only.")
+endif()
+
+set(BUILD_CONFIGURATIONS default_build)
+set(CMAKE_CONFIGURATION_TYPES
+    ${BUILD_CONFIGURATIONS}
+    CACHE STRING "list of supported configuration types" FORCE)
+set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+                                             ${CMAKE_CONFIGURATION_TYPES})
+list(GET CMAKE_CONFIGURATION_TYPES 0 BUILD_TYPE)
+if((NOT CMAKE_BUILD_TYPE) OR (NOT ("${CMAKE_BUILD_TYPE}" IN_LIST
+                                   CMAKE_CONFIGURATION_TYPES)))
+  set(CMAKE_BUILD_TYPE
+      "${BUILD_TYPE}"
+      CACHE STRING "Build Type of the project" FORCE)
+endif()
+
+message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
+message(STATUS "Using toolchain file: ${CMAKE_TOOLCHAIN_FILE}.")
+
+# Built 32 bit, as the ThreadX and SMP suites are.  This is not incidental for
+# this suite: the Linux port defines ULONG as unsigned int on x86_64, while the
+# compatibility layer passes pointers through ULONG arguments, for instance the
+# task argument and the timer identifier.  A 64 bit build therefore truncates
+# those pointers, which the compiler reports as -Wpointer-to-int-cast and which
+# would crash the timer callback wrapper.
+add_compile_options(-m32)
+add_link_options(-m32)
+
+# Applied to everything, including the ThreadX build pulled in below.  The
+# strict warning set is applied to the test code alone, in the regression
+# CMakeLists, since neither ThreadX nor the layer under test builds clean
+# under -Wextra today and that is not this suite's to fix.
+add_compile_options(-ggdb -g3 -fdiagnostics-color)
+
+enable_testing()
+
+# The compatibility layer stores a back pointer in each thread control block,
+# so ThreadX has to be built with the matching user extension.
+set(TX_USER_FILE
+    ${CMAKE_CURRENT_LIST_DIR}/../fixtures/tx_user.h
+    CACHE FILEPATH "tx_user.h used for the FreeRTOS layer tests" FORCE)
+
+add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/../../.. threadx)
+
+add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/regression)