Add OffHeap Query in J9ServerVM

Signed-off-by: Abdulrahman Alattas <rmnattas@gmail.com>
eclipse-openj9 · Sep 18, 2024 · 721d444 · 721d444
1 parent 2a68c8d
commit 721d444
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diff --git a/runtime/compiler/env/VMJ9Server.cpp b/runtime/compiler/env/VMJ9Server.cpp
@@ -2551,6 +2551,31 @@ TR_J9ServerVM::isPortableRestoreModeEnabled()
    return vmInfo->_isPortableRestoreMode;
    }
 
+bool
+TR_J9ServerVM::isIndexableDataAddrPresent()
+   {
+#if defined(J9VM_ENV_DATA64)
+   JITServer::ServerStream *stream = _compInfoPT->getMethodBeingCompiled()->_stream;
+   auto *vmInfo = _compInfoPT->getClientData()->getOrCacheVMInfo(stream);
+   return vmInfo->_isIndexableDataAddrPresent;
+#else
+   return false;
+#endif /* defined(J9VM_ENV_DATA64) */
+   }
+
+/**
+ * Query if off-heap large array allocation is enabled
+ *
+ * @return true if off-heap large array allocation is enabled, false otherwise
+ */
+bool
+TR_J9ServerVM::isOffHeapAllocationEnabled()
+   {
+   JITServer::ServerStream *stream = _compInfoPT->getMethodBeingCompiled()->_stream;
+   auto *vmInfo = _compInfoPT->getClientData()->getOrCacheVMInfo(stream);
+   return vmInfo->_isOffHeapAllocationEnabled;
+   }
+
 bool
 TR_J9SharedCacheServerVM::isClassLibraryMethod(TR_OpaqueMethodBlock *method, bool vettedForAOT)
    {

diff --git a/runtime/compiler/env/VMJ9Server.hpp b/runtime/compiler/env/VMJ9Server.hpp
@@ -251,6 +251,8 @@ class TR_J9ServerVM: public TR_J9VM
    virtual bool inSnapshotMode() override;
    virtual bool isSnapshotModeEnabled() override;
    virtual bool isPortableRestoreModeEnabled() override;
+   virtual bool isIndexableDataAddrPresent();
+   virtual bool isOffHeapAllocationEnabled();
 
 private:
    bool instanceOfOrCheckCastHelper(J9Class *instanceClass, J9Class* castClass, bool cacheUpdate);