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 <[email protected]>
---
arch/x86_64/vdso/vvar.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86_64/vdso/vvar.c b/arch/x86_64/vdso/vvar.c
index 6fc2221..1b7e703 100644
--- a/arch/x86_64/vdso/vvar.c
+++ b/arch/x86_64/vdso/vvar.c
@@ -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"
-
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