[ltt-dev] Porting "jump labels" to userspace

Mathieu Desnoyers mathieu.desnoyers at efficios.com
Wed Feb 16 15:36:53 EST 2011

* David Daney (ddaney at caviumnetworks.com) wrote:
> On 02/16/2011 12:00 PM, Mathieu Desnoyers wrote:
> [...]>
>> Actually, creating the equivalent of the jump labels for userspace is on our
>> list of "things to do" for the UST project.
>> If Jason and other jump label contributors agree to dual-license the jump label
>> generic and per-arch implementations under both GPLv2 and LGPLv2.1, we could
>> probably re-use a large part of this code to create a static jump label library
>> for userspace. The concerned authors are precisely: Jason for generic and x86
>> code, Steven for some improvements in generic code and David S. Miller for the
>> sparc port. After things settle down with the current jump label changes
>> proposed by Peter Zijlstra, we might also want to ask for his permission to
>> LGPLize his changes.
> FWIW:  MIPS jump label support is now in as of:
> 94bb0c1 (MIPS: jump label: Add MIPS support.)
> I would be the author of that.

Sorry David, my tree was a bit outdated from Linus's head :)


> David Daney

Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.

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