From: "H. Peter Anvin" <hpa@zytor.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Josh Boyer <jwboyer@fedoraproject.org>,
"Linux-Kernel@Vger. Kernel. Org" <linux-kernel@vger.kernel.org>
Subject: Re: vdso_install target broken post-3.15
Date: Tue, 17 Jun 2014 20:48:49 -0700 [thread overview]
Message-ID: <53A10C21.8070101@zytor.com> (raw)
In-Reply-To: <CALCETrUVudD++7i679xVW_NvvVUmHpUqdufjbguQciT5k5sguQ@mail.gmail.com>
On 06/17/2014 08:45 PM, Andy Lutomirski wrote:
> On Tue, Jun 17, 2014 at 3:54 PM, Andy Lutomirski <luto@amacapital.net> wrote:
>> Just a heads up: gdb can't debug the vdso on 3.16-rc1. I filed a bug:
>>
>> https://sourceware.org/bugzilla/show_bug.cgi?id=17064
>>
>> We may need to extend the fake section header hack to all vdso
>> versions and stick the ELF notes in there.
>
> I have a semi-working implementation of a workaround, bit it adds a
> fair amount of extra crud to the image, and it's pushing my
> configuration past a page boundary. I suspect that, if we're willing
> to abuse the ELF format a bit more, I can get the overhead down,
> though.
>
> Are we okay with regressing here until binutils gets fixed?
>
Probably not... although I guess it depends just how bad it really is.
-hpa
next prev parent reply other threads:[~2014-06-18 3:49 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-11 14:14 vdso_install target broken post-3.15 Josh Boyer
2014-06-11 15:16 ` Josh Boyer
2014-06-11 15:18 ` H. Peter Anvin
2014-06-11 15:20 ` Josh Boyer
2014-06-11 15:21 ` Andy Lutomirski
2014-06-11 15:24 ` H. Peter Anvin
2014-06-11 15:20 ` Andy Lutomirski
2014-06-11 15:24 ` H. Peter Anvin
2014-06-11 16:20 ` [PATCH 0/2] x86,vdso,kbuild: Fix vdso_install Andy Lutomirski
2014-06-11 16:20 ` [PATCH 1/2] kbuild: Add recipe-cmd, an @-less cmd variant Andy Lutomirski
2014-06-11 16:20 ` [PATCH 2/2] x86,vdso: Fix vdso_install Andy Lutomirski
2014-06-11 17:23 ` Josh Boyer
2014-06-11 17:27 ` H. Peter Anvin
2014-06-11 17:33 ` Josh Boyer
2014-06-11 17:42 ` Andy Lutomirski
2014-06-11 17:45 ` Josh Boyer
2014-06-11 18:45 ` Andy Lutomirski
2014-06-11 18:51 ` Sam Ravnborg
2014-06-11 19:03 ` Andy Lutomirski
2014-06-11 19:16 ` Sam Ravnborg
2014-06-11 19:18 ` Andy Lutomirski
2014-06-11 16:24 ` [PATCH 0/2] x86,vdso,kbuild: " Josh Boyer
2014-06-11 16:36 ` Sam Ravnborg
2014-06-11 16:41 ` Josh Boyer
2014-06-11 18:44 ` Sam Ravnborg
2014-06-11 19:01 ` Andy Lutomirski
2014-06-17 22:54 ` vdso_install target broken post-3.15 Andy Lutomirski
2014-06-18 3:45 ` Andy Lutomirski
2014-06-18 3:48 ` H. Peter Anvin [this message]
2014-06-18 4:22 ` Andy Lutomirski
2014-06-18 13:09 ` Josh Boyer
2014-06-18 15:12 ` Andy Lutomirski
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