From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 9/9] ARM: zImage: make sure no GOTOFF relocs are used with .bss symbols
Date: Fri, 29 Apr 2011 00:11:41 -0700 [thread overview]
Message-ID: <20110429071141.GT3755@atomide.com> (raw)
In-Reply-To: <1304031024-5121-10-git-send-email-nico@fluxnic.net>
* Nicolas Pitre <nico@fluxnic.net> [110428 15:47]:
> From: Nicolas Pitre <nicolas.pitre@linaro.org>
>
> To be able to relocate the .bss section at run time independently from
> the rest of the code, we must make sure that no GOTOFF relocations are
> used with .bss symbols. This usually means that no global variables can
> be marked static unless they're also const.
>
> To enforce this, suffice to fail the build whenever a private symbol
> is allocated to .bss and list those symbols for convenience.
>
> The user_stack and user_stack_end labels in head.S were converted into
> non exported symbols to remove false positives.
>
> Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Marking something static in uncompress.h now fails with this patch, so:
Tested-by: Tony Lindgren <tony@atomide.com>
prev parent reply other threads:[~2011-04-29 7:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-28 22:50 [PATCH 0/9] zImage fixes Nicolas Pitre
2011-04-28 22:50 ` [PATCH 1/9] ARM: zImage: make sure the stack is 64-bit aligned Nicolas Pitre
2011-04-29 6:58 ` Tony Lindgren
2011-04-28 22:50 ` [PATCH 2/9] ARM: zImage: Fix bad SP address after relocating kernel Nicolas Pitre
2011-04-28 22:50 ` [PATCH 3/9] ARM: zImage: make sure not to relocate on top of the relocation code Nicolas Pitre
2011-04-29 7:03 ` Tony Lindgren
2011-04-28 22:50 ` [PATCH 4/9] ARM: zImage: the page table memory must be considered before relocation Nicolas Pitre
2011-04-29 7:04 ` Tony Lindgren
2011-04-28 22:50 ` [PATCH 5/9] ARM: zImage: no need to get the decompressed size from the filesystem Nicolas Pitre
2011-04-28 22:50 ` [PATCH 6/9] ARM: zImage: simplify decompress_kernel() Nicolas Pitre
2011-04-28 22:50 ` [PATCH 7/9] ARM: zImage: don't ignore error returned from decompress() Nicolas Pitre
2011-04-29 7:05 ` Tony Lindgren
2011-04-28 22:50 ` [PATCH 8/9] ARM: zImage: remove the static qualifier from global data variables Nicolas Pitre
2011-04-29 7:07 ` Tony Lindgren
2011-04-29 20:12 ` Uwe Kleine-König
2011-04-29 20:37 ` Nicolas Pitre
2011-04-28 22:50 ` [PATCH 9/9] ARM: zImage: make sure no GOTOFF relocs are used with .bss symbols Nicolas Pitre
2011-04-29 7:11 ` Tony Lindgren [this message]
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=20110429071141.GT3755@atomide.com \
--to=tony@atomide.com \
--cc=linux-arm-kernel@lists.infradead.org \
/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).