cmake: add new ${RIMAGE_TOP} constant

In preparation for changing it, see
https://github.com/thesofproject/sof/issues/8178

No functional change yet.

Signed-off-by: Marc Herbert <marc.herbert@intel.com>

CMakeLists.txt

@@ -43,6 +43,8 @@ project(SOF C ASM)
 set(SOF_ROOT_SOURCE_DIRECTORY "${PROJECT_SOURCE_DIR}")
 set(SOF_ROOT_BINARY_DIRECTORY "${PROJECT_BINARY_DIR}")
 
+set(RIMAGE_TOP "${PROJECT_SOURCE_DIR}/rimage")
+
 # check git hooks
 include(scripts/cmake/git-hooks.cmake)
 
@@ -159,8 +161,8 @@ install(
 		${PROJECT_SOURCE_DIR}/src/include/ipc
 		${PROJECT_SOURCE_DIR}/src/include/kernel
 		${PROJECT_SOURCE_DIR}/src/include/user
-		${PROJECT_SOURCE_DIR}/rimage/src/include/sof/kernel
-		${PROJECT_SOURCE_DIR}/rimage/src/include/sof/user
+		${RIMAGE_TOP}/src/include/sof/kernel
+		${RIMAGE_TOP}/src/include/sof/user
 	DESTINATION include/sof
 	PATTERN "*.h"
 )

src/arch/xtensa/CMakeLists.txt

@@ -330,7 +330,7 @@ add_custom_target(
 
 ExternalProject_Add(rimage_ep
 	DEPENDS check_version_h
-	SOURCE_DIR "${PROJECT_SOURCE_DIR}/rimage"
+	SOURCE_DIR "${RIMAGE_TOP}"
 	PREFIX "${PROJECT_BINARY_DIR}/rimage_ep"
 	BINARY_DIR "${PROJECT_BINARY_DIR}/rimage_ep/build"
 	EXCLUDE_FROM_ALL TRUE
@@ -386,7 +386,7 @@ if(MEU_PATH OR DEFINED MEU_NO_SIGN) # Don't sign with rimage
 		run_rimage
 		COMMAND ${PROJECT_BINARY_DIR}/rimage_ep/build/rimage
 			-o sof-${fw_name}.ri
-			-c "${PROJECT_SOURCE_DIR}/rimage/config/${fw_name}.toml"
+			-c "${RIMAGE_TOP}/config/${fw_name}.toml"
 			-s ${MEU_OFFSET}
 			-k ${RIMAGE_PRIVATE_KEY}
 			-i ${RIMAGE_IMR_TYPE}
@@ -427,7 +427,7 @@ else() # sign with rimage
 		run_rimage
 		COMMAND ${PROJECT_BINARY_DIR}/rimage_ep/build/rimage
 			-o sof-${fw_name}.ri
-			-c "${PROJECT_SOURCE_DIR}/rimage/config/${fw_name}.toml"
+			-c "${RIMAGE_TOP}/config/${fw_name}.toml"
 			-k ${RIMAGE_PRIVATE_KEY}
 			-i ${RIMAGE_IMR_TYPE}
 			-f ${SOF_MAJOR}.${SOF_MINOR}.${SOF_MICRO}

src/ipc/ipc4/CMakeLists.txt

@@ -9,4 +9,4 @@ add_local_sources(sof
 	ams_helpers.c
 )
 
-target_include_directories(sof_options INTERFACE ${PROJECT_SOURCE_DIR}/rimage/src/include)
+target_include_directories(sof_options INTERFACE ${RIMAGE_TOP}/src/include)