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Add frontend method getVFT entry to read the virtual function table #2126

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merged 1 commit into from
Jun 8, 2018
Merged

Add frontend method getVFT entry to read the virtual function table #2126

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5 changes: 5 additions & 0 deletions runtime/compiler/env/VMJ9.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8590,6 +8590,11 @@ TR_J9VM::getPrimitiveArrayAllocationClass(J9Class *clazz)
return (TR_OpaqueClassBlock *) clazz;
}

intptrj_t
TR_J9VMBase::getVFTEntry(TR_OpaqueClassBlock *clazz, int32_t offset)
{
return *(intptrj_t*) (((uint8_t *)clazz) + offset);
}


//////////////////////////////////////////////////////////
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2 changes: 2 additions & 0 deletions runtime/compiler/env/VMJ9.h
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Expand Up @@ -1005,6 +1005,8 @@ class TR_J9VMBase : public TR_FrontEnd
virtual void *getLocationOfClassLoaderObjectPointer(TR_OpaqueClassBlock *classPointer);
virtual bool isMethodBreakpointed(TR_OpaqueMethodBlock *method);

virtual intptrj_t getVFTEntry(TR_OpaqueClassBlock *clazz, int32_t offset);

protected:
#if defined(TR_TARGET_S390)
int32_t getS390MachineName(TR_S390MachineType machine, char* processorName, int32_t stringLength);
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