generator: create annotation file

src/main/scala/groundtest/Generator.scala

@@ -7,6 +7,7 @@ import freechips.rocketchip.util.GeneratorApp
 object Generator extends GeneratorApp {
   val longName = names.topModuleProject + "." + names.configs
   generateFirrtl
+  generateAnno
   generateTestSuiteMakefrags // TODO: Needed only for legacy make targets
   generateArtefacts
 }

src/main/scala/system/Generator.scala

@@ -87,6 +87,7 @@ object Generator extends GeneratorApp {
 
   val longName = names.topModuleProject + "." + names.configs
   generateFirrtl
+  generateAnno
   generateTestSuiteMakefrags
   generateROMs
   generateArtefacts

src/main/scala/unittest/Generator.scala

@@ -5,6 +5,7 @@ package freechips.rocketchip.unittest
 object Generator extends freechips.rocketchip.util.GeneratorApp {
   val longName = names.topModuleProject + "." + names.configs
   generateFirrtl
+  generateAnno
   generateTestSuiteMakefrags // TODO: Needed only for legacy make targets
   generateArtefacts
 }

src/main/scala/util/GeneratorUtils.scala

@@ -10,6 +10,8 @@ import freechips.rocketchip.system.{TestGeneration, DefaultTestSuites}
 import freechips.rocketchip.config._
 import freechips.rocketchip.diplomacy.LazyModule
 import java.io.{File, FileWriter}
+import net.jcazevedo.moultingyaml._
+import firrtl.annotations.AnnotationYamlProtocol._
 
 /** Representation of the information this Generator needs to collect from external sources. */
 case class ParsedInputNames(
@@ -106,6 +108,13 @@ trait GeneratorApp extends App with HasGeneratorUtilities {
     Driver.dumpFirrtl(circuit, Some(new File(td, s"$longName.fir"))) // FIRRTL
   }
 
+  def generateAnno {
+    val annotationFile = new File(td, s"$longName.anno")
+    val af = new FileWriter(annotationFile)
+    af.write(circuit.annotations.toArray.toYaml.prettyPrint)
+    af.close()
+  }
+
   /** Output software test Makefrags, which provide targets for integration testing. */
   def generateTestSuiteMakefrags {
     addTestSuites