linux-kernel - Re: Linus 2.6.23-rc1

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Date:	Mon, 23 Jul 2007 00:22:11 +0200
From:	Andi Kleen <ak@...e.de>
To:	Andre Noll <maan@...temlinux.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linus 2.6.23-rc1

On Monday 23 July 2007 00:10:01 Andre Noll wrote:
> On 14:04, Linus Torvalds wrote:
> 
> > So give it all a good whacking, and report back about all the neat new 
> > features!
> 
> Does overlapping sections count as a new feature? ;)
> 
>   gcc -m elf_x86_64 -nostdlib -fPIC -shared -Wl,-soname=linux-vdso.so.1  -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 -Wl,-T,arch/x86_64/vdso/vdso.lds arch/x86_64/vdso/vdso-start.o arch/x86_64/vdso/vdso-note.o arch/x86_64/vdso/vclock_gettime.o arch/x86_64/vdso/vgetcpu.o arch/x86_64/vdso/vvar.o -o arch/x86_64/vdso/vdso.so
> /usr/bin/ld: section .text [ffffffffff700500 -> ffffffffff7007e3] overlaps section .gnu.version_d [ffffffffff7004d8 -> ffffffffff70050f]
> collect2: ld returned 1 exit status
> make[3]: *** [arch/x86_64/vdso/vdso.so] Error 1
> make[2]: *** [arch/x86_64/vdso] Error 2
> make[1]: *** [_all] Error 2
> make: *** [all] Error 2


Does this patch fix it?

-Andi


Increase VDSO_TEXT_OFFSET for ancient binutils

For some reason old binutils genertate larger headers so
increase the text offset of the vdso to avoid linker errors.

Signed-off-by: Andi Kleen <ak@...e.de>

Index: linux/arch/x86_64/vdso/voffset.h
===================================================================
--- linux.orig/arch/x86_64/vdso/voffset.h
+++ linux/arch/x86_64/vdso/voffset.h
@@ -1 +1 @@
-#define VDSO_TEXT_OFFSET 0x500
+#define VDSO_TEXT_OFFSET 0x600
-
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