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    SubjectRe: [PATCH] x86: push old stack address on irqstack for unwinder
    Ingo Molnar wrote:
    >
    > Would be nice to have an #ifdef-less primitive for this - something like:
    >
    > pushq_frame %rbp
    >
    > and a matching:
    >
    > popq_frame %rbp
    >
    > for those cases that need it (this one doesnt as we dont pop out of the
    > stack).
    >

    It certainly would if this isn't a singleton, which I think it could
    possibly be?

    Otherwise it really should be a part of an entry/exit macro; this is
    somewhat special in that it sets up a frame pointer as something other
    than a normal entry/exit sequence.

    -hpa


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