[LLVMdev] Tracing values in llvm IR

Jin Huang
Fri, 03 Jan 2014 03:09:32 -0000

Thank You ! John and Swarup. I have already downloaded the code!




2014/1/3 Sahoo, Swarup Kumar <ssahoo2 at illinois.edu>

>  Hi Jin Huang,
>
> The updated Giri code is available at
https://github.com/liuml07/giri<https://github.com/liuml07/giri.>.
> This will give you an idea of how to instrument the program to trace
> different values. You can modify the code to achieve your goals.
>
> -Swarup.
>
>  ------------------------------
> *From:* Criswell, John T
> *Sent:* Thursday, January 02, 2014 2:12 PM
> *To:* Jin Huang; llvmdev at cs.uiuc.edu; Sahoo, Swarup Kumar
> *Subject:* Re: [LLVMdev] Tracing values in llvm IR
>
>   On 1/1/14 11:39 PM, Jin Huang wrote:
>
>  Hi, everyone.
>
>  I want to writing a Pass to get the variable value while the program is
> running ,the basic idea is to insert an STL map in the program ,and get
> every value and address a program use ,but whether it's possible to do
this
> by transforming the llvm IR?
>
>  I didn't find any useful functions to get a variable's address in
LLVM
> IR .It seems that the IR is an SSA form and we can not get a value's
> address in compiling time.Is that right? But how can I dynamically get the
> variable's value in run time by writing a Pass ?
>
>
> The giri project does dynamic tracing of values stored to and loaded from
> memory.  It stores the trace of memory accesses on disk because they get
> very large very quickly.  You can either reuse the Giri code or modify it
> to suit your purposes.
>
> Swarup, is there a place where people can download the updated Giri code
> that your Google Summer of Code student worked on?
>
> -- John T.
>
>
>
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>
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