android: init: Export properties for low ram device

Signed-off-by: hmz007 <hmz007@gmail.com>

system/core/init/property_service.cpp

@@ -1312,6 +1312,17 @@ static void ExportKernelBootProps() {
     }
 }
 
+static void ExportLowRamProps() {
+    std::string value = GetProperty("ro.boot.low_ram", "false");
+    if (value == "1" || value == "true" || value == "yes") {
+        InitPropertySet("ro.config.low_ram", "true");
+        InitPropertySet("ro.config.per_app_memcg", "false");
+        InitPropertySet("dalvik.vm.systemservercompilerfilter", "speed-profile");
+        InitPropertySet("dalvik.vm.heapgrowthlimit", "128m");
+        InitPropertySet("dalvik.vm.heapsize", "384m");
+    }
+}
+
 static void ProcessKernelDt() {
     if (!is_android_dt_value_expected("compatible", "android,firmware")) {
         return;
@@ -1389,6 +1400,9 @@ void PropertyInit() {
     ExportKernelBootProps();
 
     PropertyLoadBootDefaults();
+
+    // Export properties for low ram device on runtime
+    ExportLowRamProps();
 }
 
 static void HandleInitSocket() {