Re: [RFC PATCH tip 0/5] tracing filters with BPF

From: H. Peter Anvin
Date: Thu Dec 05 2013 - 20:29:47 EST


On 12/05/2013 05:20 PM, Andi Kleen wrote:
> "H. Peter Anvin" <hpa@xxxxxxxxx> writes:
>>
>> Not to mention that in that case we might as well -- since we need a
>> compiler anyway -- generate the machine code in user space; the JIT
>> solution really only is useful if it can provide something that we can't
>> do otherwise, e.g. enable it in secure boot environments.
>
> I can see there may be some setups which don't have a compiler
> (e.g. I know some people don't use systemtap because of that)
> But this needs a custom gcc install too as far as I understand.
>

Yes... but no compiler and secure boot tend to go together, or at least
will in the future.

-hpa

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