lmdk: Build module common functions

Added building a static library containing common functions for modules
provided by sof. Native loadable modules are statically linked to it.

Signed-off-by: Adrian Warecki <adrian.warecki@intel.com>

Author: softwarecki

lmdk/cmake/build.cmake

@@ -9,6 +9,11 @@ endif()
 
 include(${CMAKE_CURRENT_LIST_DIR}/config.cmake)
 
+# Build common module functions from sof to a static library
+add_library(sof STATIC)
+target_include_directories(sof PRIVATE "${SOF_BASE}/src/include")
+add_subdirectory("${SOF_BASE}/src/module" module_api)
+
 foreach(MODULE ${MODULES_LIST})
 	add_executable(${MODULE})
 	add_subdirectory(${LMDK_BASE}/modules/${MODULE} ${MODULE}_module)
@@ -36,6 +41,9 @@ foreach(MODULE ${MODULES_LIST})
 		-P ${CMAKE_CURRENT_LIST_DIR}/ldscripts.cmake
 	)
 
+	# Link module with sof common module functions
+	target_link_libraries(${MODULE} sof)
+
 	target_link_options(${MODULE} PRIVATE
 		"-nostartfiles"
 		"-Wl,--no-undefined" "-Wl,--unresolved-symbols=report-all" "-Wl,--error-unresolved-symbols"

lmdk/cmake/config.cmake

@@ -16,3 +16,22 @@ cmake_path(ABSOLUTE_PATH SOF_BASE NORMALIZE)
 
 set(RIMAGE_INCLUDE_DIR ${SOF_BASE}/tools/rimage/src/include)
 cmake_path(ABSOLUTE_PATH RIMAGE_INCLUDE_DIR NORMALIZE)
+
+# Adds sources to target like target_sources, but assumes that
+# paths are relative to subdirectory.
+# Works like:
+# 	Cmake >= 3.13:
+#		target_sources(<target> PRIVATE <sources>)
+# 	Cmake < 3.13:
+#		target_sources(<target> PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/<sources>)
+function(add_local_sources target)
+	foreach(arg ${ARGN})
+		if(IS_ABSOLUTE ${arg})
+			set(path ${arg})
+		else()
+			set(path ${CMAKE_CURRENT_SOURCE_DIR}/${arg})
+		endif()
+
+		target_sources(${target} PRIVATE ${path})
+	endforeach()
+endfunction()