linux-kernel - Re: [PATCH v2] tools build: add tools tree support for 'make -s'

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Message-ID: <20170125151257.GO6500@twins.programming.kicks-ass.net>
Date:   Wed, 25 Jan 2017 16:12:57 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
        Michal Marek <mmarek@...e.com>, Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v2] tools build: add tools tree support for 'make -s'

On Wed, Jan 18, 2017 at 10:16:55PM -0600, Josh Poimboeuf wrote:
> When doing a kernel build with 'make -s', everything is silenced except
> the objtool build.  That's because the tools tree support for silent
> builds is some combination of missing and broken.
> 
> Three changes are needed to fix it:
> 
> - Makefile: propagate '-s' to the sub-make's MAKEFLAGS variable so the
>   tools Makefiles can see it.
> 
> - tools/scripts/Makefile.include: fix the tools Makefiles' ability to
>   recognize '-s'.  The MAKE_VERSION and MAKEFLAGS checks are copied from
>   the top-level Makefile.  This silences the "DESCEND objtool" message.
> 
> - tools/build/Makefile.build: add support to the tools Build files for
>   recognizing '-s'.  Again the MAKE_VERSION and MAKEFLAGS checks are
>   copied from the top-level Makefile.  This silences all the object
>   compile/link messages.
> 
> Reported-by: Peter Zijlstra <peterz@...radead.org>
> Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>

Awesome, seems to work!

Tested-by: Peter Zijlstra (Intel) <peterz@...radead.org>