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    SubjectRe: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf)
    Hi,

    On 2017-07-11 10:33:37 -0500, Josh Poimboeuf wrote:
    > The simpler debuginfo format also enables the unwinder to be much faster
    > than DWARF, which is important for perf and lockdep.

    Is this going to be usable for userland call-graphs as well? If one
    converts dwarf to that, I mean? Because right now with perf dwarf is
    often the only thing that works properly through libc, as libc isn't
    compiled with fps and has hardcoded asm not preserving fp. lbr isn't
    available for many events, and often not at all available in VMs etc.

    Regards,

    Andres

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