8320139: [JVMCI] VmObjectAlloc is not generated by intrinsics methods which allocate objects

Reviewed-by: never, dnsimon

Author: rmosaner

src/hotspot/share/jvmci/jvmciCompilerToVM.hpp

@@ -115,6 +115,13 @@ class CompilerToVM {
     // Minimum alignment of an offset into CodeBuffer::SECT_CONSTS
     static int data_section_item_alignment;
 
+    /*
+     * Pointer to JvmtiExport::_should_notify_object_alloc.
+     * Exposed as an int* instead of an address so the
+     * underlying type is part of the JVMCIVMStructs definition.
+     */
+    static int* _should_notify_object_alloc;
+
    public:
      static void initialize(JVMCI_TRAPS);
 

src/hotspot/share/jvmci/jvmciCompilerToVMInit.cpp

@@ -130,6 +130,8 @@ address CompilerToVM::Data::symbol_clinit;
 
 int CompilerToVM::Data::data_section_item_alignment;
 
+int* CompilerToVM::Data::_should_notify_object_alloc;
+
 void CompilerToVM::Data::initialize(JVMCI_TRAPS) {
   Klass_vtable_start_offset = in_bytes(Klass::vtable_start_offset());
   Klass_vtable_length_offset = in_bytes(Klass::vtable_length_offset());
@@ -196,6 +198,8 @@ void CompilerToVM::Data::initialize(JVMCI_TRAPS) {
 
   data_section_item_alignment = relocInfo::addr_unit();
 
+  _should_notify_object_alloc = &JvmtiExport::_should_notify_object_alloc;
+
   BarrierSet* bs = BarrierSet::barrier_set();
   if (bs->is_a(BarrierSet::CardTableBarrierSet)) {
     CardTable::CardValue* base = ci_card_table_address();

src/hotspot/share/jvmci/vmStructs_jvmci.cpp

@@ -122,6 +122,8 @@
                                                                                                                                      \
   static_field(CompilerToVM::Data,             data_section_item_alignment,            int)                                          \
                                                                                                                                      \
+  static_field(CompilerToVM::Data,             _should_notify_object_alloc,            int*)                                         \
+                                                                                                                                     \
   static_field(Abstract_VM_Version,            _features,                              uint64_t)                                     \
                                                                                                                                      \
   nonstatic_field(Annotations,                 _class_annotations,                     AnnotationArray*)                             \