ports/linux/gnu: add cmake for example_build

This adds CMake support to build the `sample_threadx` program target.

Signed-off-by: Yanfeng Liu <[email protected]>

Author: yf13

ports/linux/gnu/CMakeLists.txt

@@ -19,4 +19,8 @@ target_include_directories(${PROJECT_NAME}
     ${CMAKE_CURRENT_LIST_DIR}/inc
 )
 
-target_compile_definitions(${PROJECT_NAME} PUBLIC "-D_GNU_SOURCE -DTX_LINUX_DEBUG_ENABLE")
+target_compile_definitions(${PROJECT_NAME} PUBLIC "-D_GNU_SOURCE -DTX_LINUX_DEBUG_ENABLE")
+
+if(EXISTS ${CMAKE_CURRENT_LIST_DIR}/example_build/CMakeLists.txt)
+  add_subdirectory(example_build)
+endif()

ports/linux/gnu/example_build/CMakeLists.txt

@@ -0,0 +1,14 @@
+# Building exectuable sample_threadx
+
+project(sample_threadx)
+set(SRCS sample_threadx.c)
+
+add_executable(${PROJECT_NAME})
+target_sources(${PROJECT_NAME} PRIVATE ${SRCS})
+
+target_include_directories(
+  ${PROJECT_NAME} PRIVATE ${CMAKE_CURRENT_LIST_DIR}/../inc
+                          ${CMAKE_CURRENT_LIST_DIR}/../../../../common/inc)
+
+link_directories(${CMAKE_CURRENT_BINARY_DIR})
+target_link_libraries(${PROJECT_NAME} PRIVATE threadx)