To implement Retpoline function in c/c++ high level function for mitigating Spectre variant 2 threat

[Sachin Chavan (sachindeo.chavan)]

I have a query on spectre insecurity threats to modern CPUs on Windows OS.
CVE-2017-5715, also known as spectre variant 2. Branch target injection spectre variant 2 can be
mitigated using retpoline. I am unable to implement retpoline in c/c++ function. Can some one help?
I have seen retpoline solutions implemented in low level assemble language instructions posted on internet sites .

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