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SubjectRe: [PATCH 24/24] perf record: Add --buildid-mmap option to enable mmap's build id
On Mon, Nov 09, 2020 at 10:54:15PM +0100, Jiri Olsa wrote:
> Adding --buildid-mmap option to enable build id in mmap2 events.
> It will only work if there's kernel support for that and it disables
> build id cache (implies --no-buildid).

What's the point of the option? Why not enable it by default
if the kernel supports it?

With the option most user won't get the benefit.

The only reason I can think of for an option would be to disable
so that old tools can still process.

-Andi

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