--- old/make/autoconf/spec.gmk.in	2018-11-27 07:42:53.559278261 -0800
+++ new/make/autoconf/spec.gmk.in	2018-11-27 07:42:53.347278262 -0800
@@ -368,6 +368,9 @@
 UNLIMITED_CRYPTO=@UNLIMITED_CRYPTO@
 
 GCOV_ENABLED=@GCOV_ENABLED@
+JCOV_ENABLED=@JCOV_ENABLED@
+JCOV_HOME=@JCOV_HOME@
+JCOV_INPUT_JDK=@JCOV_INPUT_JDK@
 
 # AddressSanitizer
 export ASAN_ENABLED:=@ASAN_ENABLED@
@@ -835,10 +838,12 @@
 # Images directory definitions
 JDK_IMAGE_SUBDIR:=jdk
 JRE_IMAGE_SUBDIR:=jre
+JCOV_IMAGE_SUBDIR := jdk-jcov
 
 # Colon left out to be able to override output dir for bootcycle-images
 JDK_IMAGE_DIR=$(IMAGES_OUTPUTDIR)/$(JDK_IMAGE_SUBDIR)
 JRE_IMAGE_DIR=$(IMAGES_OUTPUTDIR)/$(JRE_IMAGE_SUBDIR)
+JCOV_IMAGE_DIR = $(IMAGES_OUTPUTDIR)/$(JCOV_IMAGE_SUBDIR)
 
 # Test image, as above
 TEST_IMAGE_SUBDIR:=test
@@ -885,12 +890,14 @@
 TEST_DEMOS_BUNDLE_NAME := jdk-$(BASE_NAME)_bin-tests-demos$(DEBUG_PART).tar.gz
 TEST_BUNDLE_NAME := jdk-$(BASE_NAME)_bin-tests$(DEBUG_PART).tar.gz
 DOCS_BUNDLE_NAME := jdk-$(BASE_NAME)_doc-api-spec$(DEBUG_PART).tar.gz
+JCOV_BUNDLE_NAME := jdk-jcov-$(BASE_NAME)_bin$(DEBUG_PART).$(JDK_BUNDLE_EXTENSION)
 
 JDK_BUNDLE := $(BUNDLES_OUTPUTDIR)/$(JDK_BUNDLE_NAME)
 JDK_SYMBOLS_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(JDK_SYMBOLS_BUNDLE_NAME)
 TEST_DEMOS_BUNDLE := $(BUNDLES_OUTPUTDIR)/$(TEST_DEMOS_BUNDLE_NAME)
 TEST_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(TEST_BUNDLE_NAME)
 DOCS_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(DOCS_BUNDLE_NAME)
+JCOV_BUNDLE := $(BUNDLES_OUTPUTDIR)/$(JCOV_BUNDLE_NAME)
 
 # This macro is called to allow inclusion of closed source counterparts.
 # Unless overridden in closed sources, it expands to nothing.