svn commit: r344487 - in head/sys: conf gnu/gcov

Cy Schubert Cy.Schubert at
Mon Feb 25 18:09:31 UTC 2019

On February 25, 2019 9:58:09 AM PST, Brooks Davis <brooks at> wrote:
>On Sat, Feb 23, 2019 at 09:14:00PM +0000, Matt Macy wrote:
>> Author: mmacy
>> Date: Sat Feb 23 21:14:00 2019
>> New Revision: 344487
>> URL:
>> Log:
>>   gcov support
>>   add gcov support and export results as files in debugfs
>We had a brief discussion of this commit within a subset of core.  This
>addition of GPLv2 code is fine as the code is easily removal to a
>(per kmoore@) should the day come that we're read to evict all GPL
>The modest increase in activation energy for that task seems worth it
>for the short-term gains of reduced integration cost (this code will
>greatly improve our ZFS-on-Linux test coverage.)
>Rod rightly points out that we haven't accepted SPDX tags alone as
>license statements.  The standard GPL v2.0 boiler plate should be added
>to this file along side the tag.
>An additional issue is that the a warning tag was not added to
>sys/conf/files.  A warning along the lines of:
>	warning "kernel contains GPLv2 licensed GCOV"
>needs to be added.
>This commit needed more through review.
>We intend to update our license policy to require core sign off for
>new GPL code to ensure we're not adding new, tightly integrated
>dependencies, to document that we're doing so knowingly, and
>to make sure steps aren't missed.  The current document is at:
>-- Brooks

That's a  excellent idea. I was thinking about suggesting that over the weekend (actually a committee,  but core is better).

Pardon the typos and autocorrect, small keyboard in use.
Cy Schubert <Cy.Schubert at>
FreeBSD UNIX: <cy at> Web:

	The need of the many outweighs the greed of the few.

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