[Questions] perf c2c: What's the current status of perf c2c?

[Yunlong Song]

Hi, Don,
    I am interested in the perf c2c tool, which is introduced in: http://lwn.net/Articles/588866/
However, I found that this tool has not been applied to the mainline tree of perf, Why? It was first
introduced in Feb. 2014. What's its current status now? Does it have a new version or a repository
somewhere else? And does it support Haswell?

-- 
Thanks,
Yunlong Song

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