Adding required switches for cortex-m0+

runtime/runtime.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" ?>
+
+<gprconfig>
+  <configuration>
+   <config><![CDATA[
+
+   package Compiler is
+      Common_Required_Switches :=
+         ("-mlittle-endian",
+          "-mcpu=cortex-m0plus", "-mthumb");
+
+      for Leading_Required_Switches ("Ada") use
+         Compiler'Leading_Required_Switches ("Ada") &
+         Common_Required_Switches;
+
+      for Leading_Required_Switches ("C") use
+         Compiler'Leading_Required_Switches ("C") &
+         Common_Required_Switches;
+   end Compiler;
+
+   package Linker is
+      for Required_Switches use Linker'Required_Switches &
+        ("${RUNTIME_DIR(ada)}/adalib/libgnat.a") &
+        Compiler.Common_Required_Switches &
+        ("-nostdlib", "-lm", "-lgcc", "-lc");
+   end Linker;
+
+   package Binder is
+      for Required_Switches ("Ada") use Binder'Required_Switches ("Ada")
+        & ("-nostdlib");
+   end Binder;
+]]>
+   </config>
+  </configuration>
+</gprconfig>