Add new configure option --with-mixedrefs for mixed pointer mode

If --with-mixedrefs is specified in the configure command, the 'default'
OPENJ9_LIBS_SUBDIR is used for the build. The mxdptrs CMake file corresponding
to the build OS is used as the OPENJ9_BUILDSPEC. --with-mixedrefs=[static/dynamic]
sets the reference determination mode. --with-mixedrefs without any value provided
defaults to static mode.

OMR_MIXED_REFERENCES_MODE is communicated to OpenJ9 and OMR through CMake args.

Fail configure if --with-mixedrefs is used without CMake enabled.

The new mxdptr build specs are defined in OpenJ9.

The compressed and full GC libraries generated with the mixed build work are
copied to the OPENJ9_LIBS_SUBDIR alongside the other existing libraries.
    j9gc29, j9gcchk29 are always copied
    j9gc_full29, j9gcchk_full29 are copied when running in mixedrefs static mode

If an OpenJ9-equivalent OS has been specified in OPENJ9_BUILD_OS,
use the specified OS string to override the provided
OPENJDK_BUILD_OS.

Use OPENJ9_BUILD_MODE_ARCH to capture the other half of the
OPENJ9_BUILDSPEC, where the architecture and the pointer mode
(or other additional modes/settings) are specified.

Signed-off-by: Sharon Wang <[email protected]>

Author: sharon-wang

closed/CopyToBuildJdk.gmk

@@ -166,7 +166,9 @@ $(call openj9_copy_shlibs, \
 	j9dmp29 \
 	j9jextract \
 	j9gc29 \
+	$(if $(filter static,$(OMR_MIXED_REFERENCES_MODE)),j9gc_full29) \
 	j9gcchk29 \
+	$(if $(filter static,$(OMR_MIXED_REFERENCES_MODE)),j9gcchk_full29) \
 	j9hookable29 \
 	j9jit29 \
 	j9jnichk29 \

closed/OpenJ9.gmk

@@ -255,6 +255,7 @@ CMAKE_ARGS := \
 	-DJ9VM_OMR_DIR=$(OPENJ9OMR_TOPDIR) \
 	-DBUILD_ID=$(BUILD_ID) \
 	-DJAVA_SPEC_VERSION=8 \
+	-DOMR_MIXED_REFERENCES_MODE=$(OMR_MIXED_REFERENCES_MODE) \
 	-DOPENJ9_BUILD=true
 
 ifeq (windows,$(OPENJDK_TARGET_OS))

common/autoconf/generated-configure.sh

@@ -1014,7 +1014,6 @@ infodir
 docdir
 oldincludedir
 includedir
-runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -1258,7 +1257,6 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1511,15 +1509,6 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
-  -runstatedir | --runstatedir | --runstatedi | --runstated \
-  | --runstate | --runstat | --runsta | --runst | --runs \
-  | --run | --ru | --r)
-    ac_prev=runstatedir ;;
-  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
-  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
-  | --run=* | --ru=* | --r=*)
-    runstatedir=$ac_optarg ;;
-
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1657,7 +1646,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir runstatedir
+		libdir localedir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1810,7 +1799,6 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
-  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -4410,7 +4398,7 @@ VS_SDK_PLATFORM_NAME_2017=
 #CUSTOM_AUTOCONF_INCLUDE
 
 # Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1604507962
+DATE_WHEN_GENERATED=1605224843
 
 ###############################################################################
 #

jdk/make/closed/autoconf/custom-hook.m4

@@ -61,7 +61,7 @@ AC_DEFUN([OPENJ9_CONFIGURE_CMAKE],
 [
   AC_ARG_WITH(cmake, [AS_HELP_STRING([--with-cmake], [enable building openJ9 with CMake])],
     [
-      if test "x$with_cmake" == xyes -o "x$with_cmake" == x ; then
+      if test "x$with_cmake" = xyes -o "x$with_cmake" = x ; then
         with_cmake=cmake
       fi
       if test "x$with_cmake" != xno ; then
@@ -74,10 +74,15 @@ AC_DEFUN([OPENJ9_CONFIGURE_CMAKE],
       fi
     ],
     [with_cmake=no])
-  if test "$with_cmake" == yes ; then
+  if test "$with_cmake" = yes ; then
     OPENJ9_ENABLE_CMAKE=true
   else
     OPENJ9_ENABLE_CMAKE=false
+
+    # Currently, mixedrefs mode is only available with CMake enabled
+    if test "x$OMR_MIXED_REFERENCES_MODE" != xoff ; then
+      AC_MSG_ERROR([[--with-mixedrefs=[static|dynamic] requires --with-cmake]])
+    fi
   fi
   AC_SUBST(OPENJ9_ENABLE_CMAKE)
 ])
@@ -270,44 +275,57 @@ AC_DEFUN([OPENJ9_PLATFORM_SETUP],
   AC_ARG_WITH(noncompressedrefs, [AS_HELP_STRING([--with-noncompressedrefs],
     [build non-compressedrefs vm (large heap)])])
 
+  AC_ARG_WITH(mixedrefs, [AS_HELP_STRING([--with-mixedrefs],
+    [build mixedrefs vm (--with-mixedrefs=static or --with-mixedrefs=dynamic)])])
+
   OPENJ9_PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
-  if test "x$with_noncompressedrefs" != x -o "x$OPENJDK_TARGET_CPU_BITS" = x32 ; then
-    OPENJ9_BUILDSPEC="${OPENJDK_BUILD_OS}_${OPENJ9_CPU}"
+
+  # Default OPENJ9_BUILD_OS=OPENJDK_BUILD_OS, but override with OpenJ9 equivalent as appropriate
+  OPENJ9_BUILD_OS="${OPENJDK_BUILD_OS}"
+
+  OMR_MIXED_REFERENCES_MODE=off
+  if test "x$with_mixedrefs" != x -a "x$with_mixedrefs" != xno; then
+    if test "x$with_mixedrefs" = xyes -o "x$with_mixedrefs" = xstatic; then
+      OMR_MIXED_REFERENCES_MODE=static
+    elif test "x$with_mixedrefs" = xdynamic; then
+      OMR_MIXED_REFERENCES_MODE=dynamic
+    else
+      AC_MSG_ERROR([OpenJ9 supports --with-mixedrefs=static and --with-mixedrefs=dynamic])
+    fi
+    OPENJ9_BUILD_MODE_ARCH="${OPENJ9_CPU}_mxdptrs"
+    OPENJ9_LIBS_SUBDIR=default
+  elif test "x$with_noncompressedrefs" = xyes ; then
+    OPENJ9_BUILD_MODE_ARCH="${OPENJ9_CPU}"
     OPENJ9_LIBS_SUBDIR=default
   else
-    OPENJ9_BUILDSPEC="${OPENJDK_BUILD_OS}_${OPENJ9_CPU}_cmprssptrs"
+    OPENJ9_BUILD_MODE_ARCH="${OPENJ9_CPU}_cmprssptrs"
     OPENJ9_LIBS_SUBDIR=compressedrefs
   fi
 
   if test "x$OPENJ9_CPU" = xx86-64 ; then
-    if test "x$OPENJDK_BUILD_OS" = xlinux ; then
+    if test "x$OPENJ9_BUILD_OS" = xlinux ; then
       OPENJ9_PLATFORM_CODE=xa64
-    elif test "x$OPENJDK_BUILD_OS" = xwindows ; then
+    elif test "x$OPENJ9_BUILD_OS" = xwindows ; then
       OPENJ9_PLATFORM_CODE=wa64
-      if test "x$OPENJ9_LIBS_SUBDIR" = xdefault ; then
-        if test "x$OPENJDK_TARGET_CPU_BITS" = x32 ; then
-          OPENJ9_PLATFORM_CODE=wi32
-          OPENJ9_BUILDSPEC="win_x86"
-        else
-          OPENJ9_BUILDSPEC="win_x86-64"
-        fi
-      else
-        OPENJ9_BUILDSPEC="win_x86-64_cmprssptrs"
+      OPENJ9_BUILD_OS=win
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32 ; then
+        OPENJ9_PLATFORM_CODE=wi32
+        OPENJ9_BUILD_MODE_ARCH="x86"
       fi
-    elif test "x$OPENJDK_BUILD_OS" = xmacosx ; then
+    elif test "x$OPENJ9_BUILD_OS" = xmacosx ; then
       OPENJ9_PLATFORM_CODE=oa64
-      if test "x$OPENJ9_LIBS_SUBDIR" = xdefault ; then
-        OPENJ9_BUILDSPEC="osx_x86-64"
-      else
-        OPENJ9_BUILDSPEC="osx_x86-64_cmprssptrs"
-      fi
+      OPENJ9_BUILD_OS=osx
     else
-      AC_MSG_ERROR([Unsupported OpenJ9 platform ${OPENJDK_BUILD_OS}!])
+      AC_MSG_ERROR([Unsupported OpenJ9 platform ${OPENJ9_BUILD_OS}!])
     fi
   elif test "x$OPENJ9_CPU" = xppc-64_le ; then
     OPENJ9_PLATFORM_CODE=xl64
-    if test "x$OPENJ9_LIBS_SUBDIR" != xdefault ; then
-      OPENJ9_BUILDSPEC="${OPENJDK_BUILD_OS}_ppc-64_cmprssptrs_le"
+    if test "x$OMR_MIXED_REFERENCES_MODE" = xoff ; then
+      if test "x$OPENJ9_LIBS_SUBDIR" != xdefault ; then
+        OPENJ9_BUILD_MODE_ARCH="ppc-64_cmprssptrs_le"
+      fi
+    else
+      OPENJ9_BUILD_MODE_ARCH="ppc-64_mxdptrs_le"
     fi
   elif test "x$OPENJ9_CPU" = x390-64 ; then
     OPENJ9_PLATFORM_CODE=xz64
@@ -319,9 +337,12 @@ AC_DEFUN([OPENJ9_PLATFORM_SETUP],
     AC_MSG_ERROR([Unsupported OpenJ9 cpu ${OPENJ9_CPU}!])
   fi
 
+  OPENJ9_BUILDSPEC="${OPENJ9_BUILD_OS}_${OPENJ9_BUILD_MODE_ARCH}"
+
   AC_SUBST(OPENJ9_BUILDSPEC)
   AC_SUBST(OPENJ9_PLATFORM_CODE)
   AC_SUBST(OPENJ9_LIBS_SUBDIR)
+  AC_SUBST(OMR_MIXED_REFERENCES_MODE)
 ])
 
 AC_DEFUN([OPENJ9_CHECK_NASM_VERSION],
@@ -381,7 +402,7 @@ AC_DEFUN([OPENJ9_THIRD_PARTY_REQUIREMENTS],
 
   FREEMARKER_JAR=
   if test "x$OPENJ9_ENABLE_CMAKE" != xtrue ; then
-    if test "x$with_freemarker_jar" == x -o "x$with_freemarker_jar" == xno ; then
+    if test "x$with_freemarker_jar" = x -o "x$with_freemarker_jar" = xno ; then
       printf "\n"
       printf "The FreeMarker library is required to build the OpenJ9 build tools\n"
       printf "and has to be provided during configure process.\n"

jdk/make/closed/autoconf/custom-spec.gmk.in

@@ -80,6 +80,9 @@ OPENJ9_PLATFORM_CODE    := @OPENJ9_PLATFORM_CODE@
 
 OPENJ9_LIBS_SUBDIR      := @OPENJ9_LIBS_SUBDIR@
 
+# Mixed References Mode
+OMR_MIXED_REFERENCES_MODE := @OMR_MIXED_REFERENCES_MODE@
+
 # Export autoconf cache variables for CC/CXX.
 # This is for the case where ccache is enabled.
 # It ensures that OMR autoconf uses the compiler, not ccache.