Add support for out of tree LayerImpl implementation (#14452)

Co-authored-by: Sundarajan Srinivasan <sundarsrini@google.com>
project-chip · Sep 5, 2023 · 1766596 · 1766596
1 parent 4ffffe9
commit 1766596
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Showing 2 changed files with 14 additions and 3 deletions.
diff --git a/src/platform/device.gni b/src/platform/device.gni
@@ -124,13 +124,15 @@ if (chip_device_platform != "external") {
   chip_platform_config_include = ""
   chip_inet_platform_config_include = ""
   chip_system_platform_config_include = ""
+  chip_system_layer_impl_config_file = ""
 } else {
   declare_args() {
     chip_ble_platform_config_include = ""
     chip_device_platform_config_include = ""
     chip_platform_config_include = ""
     chip_inet_platform_config_include = ""
     chip_system_platform_config_include = ""
+    chip_system_layer_impl_config_file = ""
   }
 }
 

diff --git a/src/system/BUILD.gn b/src/system/BUILD.gn
@@ -96,7 +96,11 @@ buildconfig_header("system_buildconfig") {
     ]
   }
 
-  defines += [ "CHIP_SYSTEM_LAYER_IMPL_CONFIG_FILE=<system/SystemLayerImpl${chip_system_config_event_loop}.h>" ]
+  if (chip_system_layer_impl_config_file != "") {
+    defines += [ "CHIP_SYSTEM_LAYER_IMPL_CONFIG_FILE=${chip_system_layer_impl_config_file}" ]
+  } else {
+    defines += [ "CHIP_SYSTEM_LAYER_IMPL_CONFIG_FILE=<system/SystemLayerImpl${chip_system_config_event_loop}.h>" ]
+  }
 }
 
 config("system_config") {
@@ -135,8 +139,6 @@ static_library("system") {
     "SystemFaultInjection.h",
     "SystemLayer.cpp",
     "SystemLayer.h",
-    "SystemLayerImpl${chip_system_config_event_loop}.cpp",
-    "SystemLayerImpl${chip_system_config_event_loop}.h",
     "SystemLayerImpl.h",
     "SystemMutex.cpp",
     "SystemMutex.h",
@@ -154,6 +156,13 @@ static_library("system") {
     "WakeEvent.h",
   ]
 
+  if (chip_system_layer_impl_config_file == "") {
+    sources += [
+      "SystemLayerImpl${chip_system_config_event_loop}.cpp",
+      "SystemLayerImpl${chip_system_config_event_loop}.h",
+    ]
+  }
+
   cflags = [ "-Wconversion" ]
 
   public_deps = [