sugar/linux
1
0
Fork 0
Code Activity

remove support for un-needed _extratext section

Browse Source 
When passing a zero address to kallsyms_lookup(), the kernel thought it was
a valid kernel address, even if it is not.  This is because is_ksym_addr()
called is_kernel_extratext() and checked against labels that don't exist on
many archs (which default as zero).  Since PPC was the only kernel which
defines _extra_text, (in 2005), and no longer needs it, this patch removes
_extra_text support.

For some history (provided by Jon):
 http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019734.html
 http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019736.html
 http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019751.html

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jon Loeliger <jdl@freescale.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Robin Getz
2008-02-06 01:36:26 -08:00
committed by Linus Torvalds
parent 0a5dcb5177
commit a3b81113fb
4 changed files with 11 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
arch/ppc/kernel/vmlinux.lds.S
View File

@@ -143,11 +143,6 @@ SECTIONS
. = ALIGN(4096);
__init_end = .;
. = ALIGN(4096);
_sextratext = .;
_eextratext = .;
__bss_start = .;
.bss :
{