cmake/zephyr: decentralize src/debug/

Adding all source files in a single, giant zephyr/CMakeLists.txt is
inconvenient and does not scale.

Link: #8260
Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

Author: lyakh

src/debug/CMakeLists.txt

@@ -4,8 +4,16 @@ if(CONFIG_GDB_DEBUG)
 	add_subdirectory(gdb)
 endif()
 
-if(CONFIG_COMP_TESTER)
-	add_subdirectory(tester)
-endif()
+add_subdirectory(tester)
+
+is_zephyr(it_is)
+if(it_is) ###  Zephyr ###
+
+add_subdirectory(debug_stream)
+add_subdirectory(telemetry)
+
+else() ###  Not Zephyr ###
 
 add_local_sources(sof panic.c)
+
+endif() # Zephyr

src/debug/gdb/CMakeLists.txt

@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: BSD-3-Clause
 
+# Common to Zephyr and XTOS
 add_local_sources(sof
 	gdb.c
 	ringbuffer.c

src/debug/tester/CMakeLists.txt

@@ -22,6 +22,8 @@ if(it_is) ###  Zephyr ###
 
 else() ### XTOS ###
 
-  add_local_sources(sof ${base_files})
+  if(CONFIG_COMP_TESTER)
+    add_local_sources(sof ${base_files})
+  endif()
 
 endif()

zephyr/CMakeLists.txt

@@ -139,7 +139,6 @@ set(SOF_AUDIO_MODULES_PATH "${SOF_SRC_PATH}/audio/module_adapter/module")
 set(SOF_SAMPLES_PATH "${SOF_SRC_PATH}/samples")
 set(SOF_LIB_PATH "${SOF_SRC_PATH}/lib")
 set(SOF_DRIVERS_PATH "${SOF_SRC_PATH}/drivers")
-set(SOF_DEBUG_PATH "${SOF_SRC_PATH}/debug")
 set(SOF_TRACE_PATH "${SOF_SRC_PATH}/trace")
 
 set(RIMAGE_TOP ${sof_top_dir}/tools/rimage)
@@ -204,9 +203,7 @@ macro(sof_list_append_ifdef feature_toggle list)
 endmacro()
 
 add_subdirectory(../src/audio/ audio_unused_install/)
-add_subdirectory(../src/debug/debug_stream/  debug_stream_unused_install/)
-add_subdirectory(../src/debug/telemetry/  telemetry_unused_install/)
-add_subdirectory(../src/debug/tester/  debug_tester_unused_install/)
+add_subdirectory(../src/debug/ debug_unused_install/)
 add_subdirectory(../src/init/ init_unused_install/)
 add_subdirectory(../src/ipc/  ipc_unused_install/)
 add_subdirectory(../src/math/  math_unused_install/)
@@ -909,11 +906,6 @@ zephyr_library_sources_ifdef(CONFIG_AMS
 	${SOF_LIB_PATH}/ams.c
 )
 
-zephyr_library_sources_ifdef(CONFIG_GDB_DEBUG
-	${SOF_DEBUG_PATH}/gdb/gdb.c
-	${SOF_DEBUG_PATH}/gdb/ringbuffer.c
-)
-
 zephyr_library_sources_ifdef(CONFIG_DW_DMA
 	${SOF_DRIVERS_PATH}/dw/dma.c
 )