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From: Arnd Bergmann <arnd@arndb.de>
To: ksummit-discuss@lists.linuxfoundation.org
Cc: Michal Marek <mmarek@suse.cz>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Jiri Olsa <jolsa@kernel.org>,
	Arjan van de Ven <arjan@linux.intel.com>,
	Ingo Molnar <mingo@kernel.org>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] tools/Makefile: Fix Many Many problems and inconsistencies
Date: Tue, 02 Aug 2016 09:31:05 +0200	[thread overview]
Message-ID: <2484582.9IDmfFcZQi@wuerfel> (raw)
In-Reply-To: <20160802050232.nzgtuijqw46qopyr@x>

On Monday, August 1, 2016 10:02:33 PM CEST Josh Triplett wrote:
> On Mon, Aug 01, 2016 at 08:46:05PM -0700, Randy Dunlap wrote:
> > and subdir Makefiles.
> > 
> > Examples:
> > 
> > Use/honor O=outputdir consistently instead of building in <kerneltree>/tools.
> > (check/compare kernel commit bf35182ffcd00d8b36d56210ffdac110e5624d7d)
> > 
> > Honor MAKEFLAGS (well, they aren't even passed to tools/Makefile AFAICT.
> > from an execution log:
> > make LDFLAGS= MAKEFLAGS="" O=/local/lnx/kernel/lnx-47/TOOLS subdir=tools -C ../tools/ all
> > 
> > Use make's "findstring" correctly (see patch below)
> > 
> > There are lots of other problems unless I have just had too much too drink tonight,
> > so here's the TECH TOPIC:
> > 
> > In a 1.5 hour code crunch session, get a bunch of interested people together to fix
> > a lot of problems quickly.  Then I will be a guinea pig tester.  :)

I'd be interested in this too.

> Another pattern to look for: any instance of
> ifeq ($(CONFIG_FOO),y)
> where CONFIG_FOO is a tristate symbol should generally become
> ifneq ($(CONFIG_FOO),n)

I tend to use

ifdef CONFIG_FOO

which seems more straightforward (fewer parentheses). Anything wrong
with that?

	Arnd

  reply	other threads:[~2016-08-02  7:31 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-02  3:46 Randy Dunlap
2016-08-02  4:53 ` Wangnan (F)
2016-08-03 19:00   ` Arnaldo Carvalho de Melo
2016-08-02  5:02 ` Josh Triplett
2016-08-02  7:31   ` Arnd Bergmann [this message]
2016-08-02  8:27     ` Josh Triplett
2016-08-02  8:41   ` Alexandre Belloni
2016-08-02  8:43     ` Josh Triplett
2016-09-04 21:15 ` Ben Hutchings
2016-09-06 14:57   ` Arnaldo Carvalho de Melo
2016-09-08  3:25     ` Bamvor Zhang Jian

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