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x86: vdso put vars in rodata 

This adds a const to the definitions vvar.c makes, so that the vdso_*
variables go into .rodata instead of .data.  This is essentially a
cosmetic change, just giving the section headers in the vDSO file more
pleasing flags. These variables are read-only from the perspective of
the vDSO itself and user mode, even though the contents of the DSO image
were adjusted at boot.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Roland McGrath 2007-10-17 18:04:40 +02:00 committed by Thomas Gleixner
parent bc3c6058bc
commit 06f99ac87e
1 changed files with 1 additions and 1 deletions
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arch/x86/vdso/vvar.c
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@ -8,5 +8,5 @@
#include <asm/timex.h>
#include <asm/vgtod.h>
#define VEXTERN(x) typeof (__ ## x) *vdso_ ## x = (void *)VMAGIC;
#define VEXTERN(x) typeof (__ ## x) *const vdso_ ## x = (void *)VMAGIC;
#include "vextern.h"