linux-kernel - Re: linux-next: manual merge of the tip tree

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Date:	Mon, 28 Oct 2013 08:47:22 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Ingo Molnar <mingo@...nel.org>, Will Deacon <will.deacon@....com>,
	Jean Pihet <jean.pihet@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: manual merge of the tip tree

On Sun, Oct 27, 2013 at 10:00:48AM +0000, Russell King - ARM Linux wrote:
> On Sun, Oct 27, 2013 at 08:12:37AM +0100, Ingo Molnar wrote:
> > 
> > * Will Deacon <will.deacon@....com> wrote:
> > > In future, I'll push back on any perf changes outside of arch/ in my 
> > > tree, but that doesn't help us get out of the current situation: the 
> > > patches are currently sitting in rmk's tree for 3.13, so that won't meet 
> > > with -tip (outside of next) until Linus pulls them both. What can we do 
> > > about that?
> > 
> > Unless you guys want to do a revert I guess there's not much to do but to 
> > warn Linus in the ARM pull request that a conflict is coming up.
> 
> From Will's description, it sounded like this could be quite hairy to
> fix up, so I'd like to include the conflict resolution in the pull
> request so Linus has something to refer to if needed.  Could someone
> please forward me that?

Hi Russell,

I've attached the relevant parts of the resolution, although I'm not
sure if anybody's actually confirmed that it's correct. FWIW, if I run

	make tools/perf

I do get the expected output:

	Auto-detecting system features:
	...                     backtrace: [ on  ]
	...                         dwarf: [ on  ]
	...                fortify-source: [ on  ]
	...                         glibc: [ on  ]
	...                          gtk2: [ on  ]
	...                  gtk2-infobar: [ on  ]
	...                      libaudit: [ OFF ]
	...                        libbfd: [ OFF ]
	...                        libelf: [ on  ]
	...             libelf-getphdrnum: [ on  ]
	...                   libelf-mmap: [ on  ]
	...                       libnuma: [ OFF ]
	...                       libperl: [ on  ]
	...                     libpython: [ on  ]
	...             libpython-version: [ OFF ]
	...                      libslang: [ OFF ]
	...                     libunwind: [ on  ]
	...         libunwind-debug-frame: [ OFF ]
	...                       on-exit: [ on  ]
	...                stackprotector: [ on  ]
	...            stackprotector-all: [ on  ]

Which I guess means that the version of libunwind that I have doesn't
enable debug-frame support, but that's as expected according to the
package build script.

Thierry

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