linux-kernel - Re: [PATCH v3] x86,vdso: Fix vdso

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Date:	Fri, 13 Jun 2014 10:28:06 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Josh Boyer <jwboyer@...oraproject.org>,
	Michal Marek <mmarek@...e.cz>,
	"linux-kbuild@...r.kernel.org" <linux-kbuild@...r.kernel.org>,
	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: [PATCH v3] x86,vdso: Fix vdso_install

On Fri, Jun 13, 2014 at 10:24 AM, H. Peter Anvin <hpa@...or.com> wrote:
> On 06/12/2014 10:01 AM, Josh Boyer wrote:
>> On Thu, Jun 12, 2014 at 11:28 AM, Andy Lutomirski <luto@...capital.net> wrote:
>>> The filenames are different now.  Inspired by a patch from
>>> Sam Ravnborg.
>>>
>>> Acked-by: Sam Ravnborg <sam@...nborg.org>
>>> Reported-by: Josh Boyer <jwboyer@...oraproject.org>
>>> Signed-off-by: Andy Lutomirski <luto@...capital.net>
>>
>> Things look great with this version.  Thanks much!
>>
>> Tested-by: Josh Boyer <jwboyer@...oraproject.org>
>>
>
> Are we okay with the 64-bit vdso now being installed as vdso64.so?

Unless someone actually complains, I think so.  Ideally, I think we'd
have a symlink from the build id, but that's a separate issue.

AFAIK, the only thing that actually references these files is Fedora's
gdb, which is finding them from Fedora's build-id symlinks, which
should work fine regardless of what the thing is called.

How's this for a patch description:

make vdso_install has been broken since this commit:

commit 6f121e548f83674ab4920a4e60afb58d4f61b829
Author: Andy Lutomirski <luto@...capital.net>
Date:   Mon May 5 12:19:34 2014 -0700

    x86, vdso: Reimplement vdso.so preparation in build-time C

because the names of the files to be installed changed.   This fixes
vdso_install to install the right files.
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