Add configure support to enable RAM class persistence

Related: https://github.ibm.com/runtimes/openj9/issues/755 Related: eclipse-openj9/openj9#20387 Signed-off-by: Nathan Henderson <[email protected]>
ThanHenderson · Oct 31, 2024 · 67dfc43 · 67dfc43
1 parent 7239a75
commit 67dfc43
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Showing 3 changed files with 34 additions and 0 deletions.
diff --git a/closed/OpenJ9.gmk b/closed/OpenJ9.gmk
@@ -286,6 +286,13 @@ else
   FEATURE_SED_SCRIPT += $(call SedDisable,opt_jitserver)
 endif
 
+# Adjust snapshots enablement flags.
+ifeq (true,$(OPENJ9_ENABLE_SNAPSHOTS))
+  FEATURE_SED_SCRIPT += $(call SedEnable,opt_snapshots)
+else # OPENJ9_ENABLE_SNAPSHOTS
+  FEATURE_SED_SCRIPT += $(call SedDisable,opt_snapshots)
+endif # OPENJ9_ENABLE_SNAPSHOTS
+
 # Adjust Inline-Types enablement flags.
 ifeq (true,$(OPENJ9_ENABLE_INLINE_TYPES))
   SPEC_SED_SCRIPT += $(call SedEnable,opt_valhallaValueTypes)
@@ -463,6 +470,12 @@ ifeq (true,$(OPENJ9_ENABLE_CMAKE))
     CMAKE_ARGS += -DJ9VM_OPT_JITSERVER=OFF
   endif # OPENJ9_ENABLE_JITSERVER
 
+  ifeq (true,$(OPENJ9_ENABLE_SNAPSHOTS))
+    CMAKE_ARGS += -DJ9VM_OPT_SNAPSHOTS=ON
+  else # OPENJ9_ENABLE_SNAPSHOTS
+    CMAKE_ARGS += -DJ9VM_OPT_SNAPSHOTS=OFF
+  endif # OPENJ9_ENABLE_SNAPSHOTS
+
   ifeq (true,$(OPENJ9_ENABLE_CUDA))
     CMAKE_ARGS += -DJ9VM_OPT_CUDA=ON -DOMR_CUDA_HOME="$(call UnixPath,$(CUDA_HOME))"
   else # OPENJ9_ENABLE_CUDA

diff --git a/closed/autoconf/custom-hook.m4 b/closed/autoconf/custom-hook.m4
@@ -50,6 +50,7 @@ AC_DEFUN_ONCE([CUSTOM_EARLY_HOOK],
   OPENJ9_CONFIGURE_JFR
   OPENJ9_CONFIGURE_JITSERVER
   OPENJ9_CONFIGURE_NUMA
+  OPENJ9_CONFIGURE_SNAPSHOTS
   OPENJ9_CONFIGURE_WARNINGS
   OPENJ9_THIRD_PARTY_REQUIREMENTS
   OPENJ9_CHECK_NASM_VERSION
@@ -152,6 +153,25 @@ AC_DEFUN([OPENJ9_CONFIGURE_NUMA],
   fi
 ])
 
+AC_DEFUN([OPENJ9_CONFIGURE_SNAPSHOTS],
+[
+  AC_MSG_CHECKING([for snapshot support])
+  AC_ARG_ENABLE([snapshots], [AS_HELP_STRING([--enable-snapshots],
+      [enable RAM persistence snapshots @<:@disabled@:>@])])
+  OPENJ9_ENABLE_SNAPSHOTS=false
+  if test "x$enable_snapshots" = xyes ; then
+    AC_MSG_RESULT([yes (explicitly enabled)])
+    OPENJ9_ENABLE_SNAPSHOTS=true
+  elif test "x$enable_snapshots" = xno ; then
+    AC_MSG_RESULT([no (explicitly disabled)])
+  elif test "x$enable_snapshots" = x ; then
+    AC_MSG_RESULT([no (default)])
+  else
+    AC_MSG_ERROR([--enable-snapshots accepts no argument])
+  fi
+  AC_SUBST(OPENJ9_ENABLE_SNAPSHOTS)
+])
+
 AC_DEFUN([OPENJ9_CONFIGURE_COMPILERS],
 [
   AC_ARG_WITH(openj9-cc, [AS_HELP_STRING([--with-openj9-cc], [build OpenJ9 with a specific C compiler])],

diff --git a/closed/autoconf/custom-spec.gmk.in b/closed/autoconf/custom-spec.gmk.in
@@ -77,6 +77,7 @@ OPENJ9_ENABLE_DEMOS                  := @OPENJ9_ENABLE_DEMOS@
 OPENJ9_ENABLE_INLINE_TYPES           := @OPENJ9_ENABLE_INLINE_TYPES@
 OPENJ9_ENABLE_JFR                    := @OPENJ9_ENABLE_JFR@
 OPENJ9_ENABLE_JITSERVER              := @OPENJ9_ENABLE_JITSERVER@
+OPENJ9_ENABLE_SNAPSHOTS              := @OPENJ9_ENABLE_SNAPSHOTS@
 
 # for constructing version output
 COMPILER_VERSION_STRING := @COMPILER_VERSION_STRING@