logging: move backends to subdirectory

This is mainly to reduce clutter in `subsys/logging`, but also to make
backend management slightly easier.

Signed-off-by: Christopher Friedt <[email protected]>

Author: Christopher Friedt

subsys/logging/CMakeLists.txt

@@ -32,90 +32,27 @@ if(NOT CONFIG_LOG_MODE_MINIMAL)
     endif()
   endif()
 
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_UART
-    log_backend_uart.c
-  )
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_FS
-    log_backend_fs.c
-  )
-
   zephyr_sources_ifdef(
     CONFIG_LOG_CMDS
     log_cmds.c
   )
 
   zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_NATIVE_POSIX
-    log_backend_native_posix.c
-  )
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_XTENSA_SIM
-    log_backend_xtensa_sim.c
-  )
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_NET
-    log_backend_net.c
-  )
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_RTT
-    log_backend_rtt.c
+    CONFIG_LOG_FRONTEND_DICT_UART
+    log_frontend_dict_uart.c
   )
 
   zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_SWO
-    log_backend_swo.c
+    CONFIG_LOG_DICTIONARY_SUPPORT
+    log_output_dict.c
   )
 
   zephyr_sources_ifdef(
     CONFIG_LOG_MIPI_SYST_ENABLE
     log_output_syst.c
   )
 
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_ADSP
-    log_backend_adsp.c
-    )
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_ADSP_HDA
-    log_backend_adsp_hda.c
-  )
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_ADSP_MTRACE
-    log_backend_adsp_mtrace.c
-  )
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_EFI_CONSOLE
-    log_backend_efi_console.c
-  )
-
-  if(CONFIG_LOG_BACKEND_SPINEL)
-    zephyr_library_include_directories(
-	    ${ZEPHYR_BASE}/subsys/net/lib/openthread/platform/
-    )
-  endif()
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_BACKEND_SPINEL
-    log_backend_spinel.c
-  )
-
-  zephyr_sources_ifdef(
-    CONFIG_LOG_FRONTEND_DICT_UART
-    log_frontend_dict_uart.c
-  )
-
-  if(CONFIG_LOG_DICTIONARY_SUPPORT)
-    zephyr_sources(log_output_dict.c)
-  endif()
+  add_subdirectory(backends)
 
 else()
   zephyr_sources(log_minimal.c)

subsys/logging/Kconfig

@@ -24,7 +24,7 @@ rsource "Kconfig.formatting"
 
 if !LOG_FRONTEND_ONLY
 
-rsource "Kconfig.backends"
+rsource "backends/Kconfig"
 
 endif # !LOG_FRONTEND_ONLY