8293532: Use lighter jmod compression levels in build config

Reviewed-by: ihse

.github/workflows/build-cross-compile.yml

@@ -160,6 +160,7 @@ jobs:
           --openjdk-target=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}
           --with-sysroot=sysroot
           --with-build-jdk=${{ steps.buildjdk.outputs.jdk-path }}
+          --with-jmod-compress=zip-1
           CC=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}-gcc-${{ inputs.gcc-major-version }}
           CXX=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}-g++-${{ inputs.gcc-major-version }}
           ${{ inputs.extra-conf-options }} || (

.github/workflows/build-linux.yml

@@ -122,6 +122,7 @@ jobs:
           --with-gtest=${{ steps.gtest.outputs.path }}
           --enable-jtreg-failure-handler
           --with-zlib=system
+          --with-jmod-compress=zip-1
           ${{ inputs.extra-conf-options }} || (
           echo "Dumping config.log:" &&
           cat config.log &&

.github/workflows/build-macos.yml

@@ -97,6 +97,7 @@ jobs:
           --with-gtest=${{ steps.gtest.outputs.path }}
           --enable-jtreg-failure-handler
           --with-zlib=system
+          --with-jmod-compress=zip-1
           ${{ inputs.extra-conf-options }} || (
           echo "Dumping config.log:" &&
           cat config.log &&

.github/workflows/build-windows.yml

@@ -110,6 +110,7 @@ jobs:
           --with-gtest=${{ steps.gtest.outputs.path }}
           --enable-jtreg-failure-handler
           --with-msvc-toolset-version=${{ inputs.msvc-toolset-version }}
+          --with-jmod-compress=zip-1
           ${{ inputs.extra-conf-options }} || (
           echo "Dumping config.log:" &&
           cat config.log &&

make/CreateJmods.gmk

@@ -232,6 +232,14 @@ ifeq ($(findstring $(MODULE), java.base java.desktop jdk.localedata), )
   JMOD_SMALL_FLAGS += $(JAVA_TOOL_FLAGS_SMALL)
 endif
 
+ifeq ($(INTERIM_JMOD), true)
+  # Interim JMODs are not shipped anywhere, so there is no reason
+  # to compress them at all.
+  JMOD_FLAGS += --compress zip-0
+else
+  JMOD_FLAGS += --compress $(JMOD_COMPRESS)
+endif
+
 # Create jmods in the support dir and then move them into place to keep the
 # module path in $(IMAGES_OUTPUTDIR)/jmods valid at all times.
 $(eval $(call SetupExecute, create_$(JMOD_FILE), \

make/autoconf/configure.ac

@@ -133,6 +133,7 @@ BASIC_SETUP_DEFAULT_LOG
 ###############################################################################
 
 # We need build & target for this.
+JDKOPT_SETUP_JMOD_OPTIONS
 JDKOPT_SETUP_JLINK_OPTIONS
 JDKVER_SETUP_JDK_VERSION_NUMBERS
 

make/autoconf/jdk-options.m4

@@ -472,6 +472,31 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_STATIC_BUILD],
   AC_SUBST(STATIC_BUILD)
 ])
 
+################################################################################
+#
+# jmod options.
+#
+AC_DEFUN_ONCE([JDKOPT_SETUP_JMOD_OPTIONS],
+[
+  # Final JMODs are recompiled often during development, and java.base JMOD
+  # includes the JVM libraries. In release mode, prefer to compress JMODs fully.
+  # In debug mode, pay with a little extra space, but win a lot of CPU time back
+  # with the lightest (but still some) compression.
+  if test "x$DEBUG_LEVEL" = xrelease; then
+    DEFAULT_JMOD_COMPRESS="zip-6"
+  else
+    DEFAULT_JMOD_COMPRESS="zip-1"
+  fi
+
+  UTIL_ARG_WITH(NAME: jmod-compress, TYPE: literal,
+    VALID_VALUES: [zip-0 zip-1 zip-2 zip-3 zip-4 zip-5 zip-6 zip-7 zip-8 zip-9],
+    DEFAULT: $DEFAULT_JMOD_COMPRESS,
+    CHECKING_MSG: [for JMOD compression type],
+    DESC: [specify JMOD compression type (zip-[0-9])]
+  )
+  AC_SUBST(JMOD_COMPRESS)
+])
+
 ################################################################################
 #
 # jlink options.

make/autoconf/spec.gmk.in

@@ -702,6 +702,7 @@ JAVADOC_MAIN_CLASS = -m jdk.javadoc.interim/jdk.javadoc.internal.tool.Main
 NEW_JAVAC   = $(INTERIM_LANGTOOLS_ARGS) $(JAVAC_MAIN_CLASS)
 NEW_JAVADOC = $(INTERIM_LANGTOOLS_ARGS) $(JAVADOC_MAIN_CLASS)
 
+JMOD_COMPRESS:=@JMOD_COMPRESS@
 JLINK_KEEP_PACKAGED_MODULES:=@JLINK_KEEP_PACKAGED_MODULES@
 
 RCFLAGS := @RCFLAGS@