[LLVMdev] How to read memory data througn adress of unsigned long

[Michael.Kang]

I have a value of long type and like to get the data at the adress in the value:

#################
unsigned long v = 0xc0008000
Value* addr = ConstantInt::get(getIntegerType(64), v)
####################

Then I try to use LoadInstr to get a load instruction of ir as the following:
############################
 Value* data = new LoadInst(addr, "", false, bb);
encounter segmentation fault.
########################

I also try to use IntToPtrInstr to do some transform as the following:
################################
      Type const *intptr_type =
cpu->dyncom_engine->exec_engine->getTargetData()->getIntPtrType(_CTX());
       Value* ptr = new IntToPtrInst(v, intptr_type, "", bb);
       Value* data = new LoadInst(ptr, "", false, bb);
 ########################################
 still encounter segmentation fault

Any person can give me some hints for my case? Thanks in advance. I
have tried a long time  with different ways.

Thanks
MK



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