[PATCH 3/3] Add make autoprofiledbootstrap

Jeff Law law@redhat.com
Wed Jun 22 17:51:00 GMT 2016


On 06/22/2016 06:37 AM, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
>
> Add support for profiledbootstrap with autofdo. Will be useful
> to get better testing coverage of autofdo.
>
> This requires Linux perf and autofdo to be installed, only
> really for x86_64 linux on Intel so far.
I really think we ought to check that and give a sensible error if 
autoprofiledbootstrap is requested.

What happens in a one-tree build for in the gas, gdb, binutils 
subdirectories?  Does anything special need to be done for those to make 
sure they build correctly (even if they aren't taking advantage of 
profiling data)?

I think with a reasonable error if perf isn't available and a sense that 
we're not going to horribly break one-tree-builds this should be ready 
to install.
jeff




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