Re: [Qemu-devel] [PATCH target-arm v7 1/1] target-arm: Implements the ARM PMCCNTR register

[Peter Maydell]

On 20 February 2014 23:58, Alistair Francis <address@hidden> wrote:
> On Fri, Feb 21, 2014 at 1:44 AM, Peter Maydell <address@hidden> wrote:
>> This breaks compilation of the arm-linux-user target
>> (the qemu_clock_get_* functions are only available in
>> system mode). You probably want to do something similar
>> to how we handle the generic timers, where we #ifdef
>> everything out. (I don't think Linux gives user
>> space access to the perf monitor registers.)

> What do you think the functions should do when in user space? Should
> they just return 0?

Just don't define reginfo entries for them at all -- then we will
UNDEF because the lookup will return no result. This is what
the generic timer code does.

thanks
-- PMM