From: ebiederm@xmission.com (Eric W. Biederman)
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@osdl.org>, Andi Kleen <ak@muc.de>,
xen-devel@lists.xensource.com, Chris Wright <chrisw@sous-sol.org>,
virtualization@lists.osdl.org,
Ian Campbell <Ian.Campbell@XenSource.com>,
linux-kernel@vger.kernel.org
Subject: Re: [patch 16/21] Xen-paravirt: Add code into head.S to handle being booted by Xen
Date: Wed, 14 Feb 2007 19:41:37 -0700 [thread overview]
Message-ID: <m1sld8m9b2.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <45D3C42C.1020005@goop.org> (Jeremy Fitzhardinge's message of "Wed, 14 Feb 2007 18:23:40 -0800")
Jeremy Fitzhardinge <jeremy@goop.org> writes:
> Eric W. Biederman wrote:
>> I'm pretty certain we explicitly drop the weird GNU note that
>> is automatically generated by gcc and specifies something informational.
>>
> But that's something else again, since it appears as a PT_GNU_STACK phdr.
Not that. It's more like abi version or gcc version or something
like. At least there used to be one of those notes in every .o file
and compiled program.
>> I don't think anything we are doing is wrong but ld gets confused easily
>> in the corner cases. I'm modestly surprised we didn't have to mark our
>> .note.xxx scions as ".section .note.xxx @note" or whatever the proper
>> gas syntax is.
>
> I did try that, and it didn't make a difference. The manual says that
> the output section type follows the input section type, so I agree its a
> bit surprising we ever get a SHT_NOTE out of it without the @note stuff.
Right. So the surprise is that SHT_NOTE got set. There are some
defaults based on the section name somewhere that appear to have done
the right thing.
My best hunch really is that ld treated the .note sections normally
and just mist the handling of the magic SHT_NOTE type. Which is why
I'm not to worried.
Eric
next prev parent reply other threads:[~2007-02-15 2:41 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-13 22:17 [patch 00/21] Xen-paravirt: Xen guest implementation for paravirt_ops interface Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 01/21] Xen-paravirt: Fix typo in sync_constant_test_bit()s name Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 02/21] Xen-paravirt: Handle a zero-sized VT console Jeremy Fitzhardinge
2007-02-14 9:24 ` Gerd Hoffmann
2007-02-13 22:17 ` [patch 03/21] Xen-paravirt: Add pagetable accessors to pack and unpack pagetable entries Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 04/21] Xen-paravirt: paravirt_ops: hooks to set up initial pagetable Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 05/21] Xen-paravirt: paravirt_ops: allocate a fixmap slot Jeremy Fitzhardinge
2007-02-14 1:23 ` Dan Hecht
2007-02-14 1:36 ` Jeremy Fitzhardinge
2007-02-14 2:34 ` Dan Hecht
2007-02-14 8:43 ` Gerd Hoffmann
2007-02-14 8:37 ` Jan Beulich
2007-02-14 9:15 ` Andi Kleen
2007-02-13 22:17 ` [patch 06/21] Xen-paravirt: remove ctor for pgd cache Jeremy Fitzhardinge
2007-02-13 22:39 ` Zachary Amsden
2007-02-13 22:17 ` [patch 07/21] Xen-paravirt: Allow paravirt backend to choose kernel PMD sharing Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 08/21] Xen-paravirt: Allow paravirt backend to select PGD allocation alignment Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 09/21] Xen-paravirt: add hooks to intercept mm creation and destruction Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 10/21] Xen-paravirt: Name: dont export paravirt_ops structure, do individual functions Jeremy Fitzhardinge
2007-02-14 1:06 ` Zachary Amsden
2007-02-14 1:16 ` Jeremy Fitzhardinge
2007-02-14 1:18 ` Zachary Amsden
2007-02-14 1:37 ` Jeremy Fitzhardinge
2007-02-14 1:43 ` Zachary Amsden
2007-02-14 1:44 ` Jeremy Fitzhardinge
2007-02-14 5:51 ` Rusty Russell
2007-02-14 19:36 ` Christoph Hellwig
2007-02-13 22:17 ` [patch 11/21] Xen-paravirt: Add apply_to_page_range() which applies a function to a pte range Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 12/21] Xen-paravirt: Allocate and free vmalloc areas Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 13/21] Xen-paravirt: Add nosegneg capability to the vsyscall page notes Jeremy Fitzhardinge
2007-02-13 22:45 ` Zachary Amsden
2007-02-13 22:49 ` Jeremy Fitzhardinge
2007-02-13 22:54 ` Zachary Amsden
2007-02-13 23:13 ` Jeremy Fitzhardinge
2007-02-14 5:38 ` Rusty Russell
2007-02-13 22:17 ` [patch 14/21] Xen-paravirt: Add XEN config options and disable unsupported config options Jeremy Fitzhardinge
2007-02-13 22:53 ` Dan Hecht
2007-02-13 23:29 ` Jeremy Fitzhardinge
2007-02-13 23:58 ` Zachary Amsden
2007-02-13 23:58 ` Dan Hecht
2007-02-13 22:17 ` [patch 15/21] Xen-paravirt: Add Xen interface header files Jeremy Fitzhardinge
2007-02-14 20:45 ` Eric W. Biederman
2007-02-15 0:10 ` Jeremy Fitzhardinge
2007-02-15 17:32 ` Christoph Hellwig
2007-02-13 22:17 ` [patch 16/21] Xen-paravirt: Add code into head.S to handle being booted by Xen Jeremy Fitzhardinge
2007-02-13 23:54 ` Andi Kleen
2007-02-14 0:39 ` Jeremy Fitzhardinge
2007-02-14 8:56 ` Jan Beulich
2007-02-14 18:53 ` Jeremy Fitzhardinge
2007-02-14 20:10 ` Eric W. Biederman
2007-02-14 20:41 ` Jeremy Fitzhardinge
2007-02-14 21:06 ` Eric W. Biederman
2007-02-15 0:13 ` Jeremy Fitzhardinge
2007-02-15 1:39 ` Eric W. Biederman
2007-02-15 1:52 ` Jeremy Fitzhardinge
2007-02-15 2:18 ` Eric W. Biederman
2007-02-15 2:23 ` Jeremy Fitzhardinge
2007-02-15 2:41 ` Eric W. Biederman [this message]
2007-02-14 20:33 ` Eric W. Biederman
2007-02-14 20:42 ` Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 17/21] Xen-paravirt: Add the Xen virtual console driver Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 18/21] Xen-paravirt: Add Xen grant table support Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 19/21] Xen-paravirt: Add the Xenbus sysfs and virtual device hotplug driver Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 20/21] Xen-paravirt: Add Xen virtual block device driver Jeremy Fitzhardinge
2007-02-13 22:17 ` [patch 21/21] Xen-paravirt: Add the Xen virtual network " Jeremy Fitzhardinge
2007-02-14 20:40 ` Eric W. Biederman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=m1sld8m9b2.fsf@ebiederm.dsl.xmission.com \
--to=ebiederm@xmission.com \
--cc=Ian.Campbell@XenSource.com \
--cc=ak@muc.de \
--cc=akpm@osdl.org \
--cc=chrisw@sous-sol.org \
--cc=jeremy@goop.org \
--cc=linux-kernel@vger.kernel.org \
--cc=virtualization@lists.osdl.org \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).