On Wed, Mar 23, 2005 at 04:00:03AM +0100, Mikael Pettersson wrote:
> - <linux/perfctr.h>: Change value fields in register descriptors
> to 64 bits. This will be needed for ppc64, and ppc32 user-space
> on ppc64 kernels, and may eventually also be needed on x86.
> We could have different descriptor types for 32 and 64-bit
> registers, but that just complicates things for no real benefit.
>
> Signed-off-by: Mikael Pettersson <[email protected]>
Erm.. won't this stop i386 binaries working on an x86_64 kernel, since
kernel and user will have different ideas of the alignment...?
> include/linux/perfctr.h | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff -rupN linux-2.6.12-rc1-mm1/include/linux/perfctr.h linux-2.6.12-rc1-mm1.perfctr-update-common/include/linux/perfctr.h
> +++ linux-2.6.12-rc1-mm1.perfctr-update-common/include/linux/perfctr.h 2005-03-23 02:19:45.000000000 +0100
> @@ -27,10 +27,10 @@ struct vperfctr_control {
> #define VPERFCTR_CONTROL_RESUME 0x03
> #define VPERFCTR_CONTROL_CLEAR 0x04
>
> -/* common description of an arch-specific 32-bit control register */
> +/* common description of an arch-specific control register */
> struct perfctr_cpu_reg {
> __u32 nr;
> - __u32 value;
> + __u64 value;
> };
>
> /* state and control domain numbers
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/people/dgibson
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