[LLVMdev] Inserting Calls to var args Functions

[Manish Gupta]

Hi All,

I am using code similar to giri instrumentation
<https://github.com/liuml07/giri> framework to insert my instrumentation
code. It works for normal functions for example to insert recordInt32
function below.

void recordInt32(int32_t val){
printf("%d, ", val);
}

I can get recodedInt32 function in my Module using  getOrInsert Function.

Function* RecordInt32 = cast<Function>(M.getOrInsertFunction("recordInt32",
                                              VoidType,
                                              Int32Type,
                                              NULL));

and insert at desired instPoint using:

CallInst::Create(RecordInt32, args, "", instPoint);

What should be the similar instructions for recoedVarInsputValues below:

void recordVarInputValues(int num, ...){ CODE }

I am not able to figure out what will be the argument to
getOrInsertFunction for "...".

Thanks!
Manish
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140831/51e5780b/attachment.html>