Some arm cortex-a8 improvements

[Richard Henderson]

On 04/22/12 13:06, Torbjorn Granlund wrote:
> Thanks.  I would be very useful to make GMP timing work with the kernel
> Linux running om ARM.  Do you know if there are similar problems with,
> say, NetBSD?

Apparently it's possible to enable the perf counter registers at user level.
See 

  http://stackoverflow.com/questions/3247373/how-to-measure-program-execution-time-in-arm-cortex-a8-processor

for a mini kernel module and sample inline functions.  I assume things are
largely similar for a9.


r~