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[Andrew says:]
> > - GLIBC marking those outermost frames with CFI indicating that both the > > CFA and the RA are "unknown"?
s/unknown/undefined/
Perhaps this addresses Mark's request for precision in terminology, but it doesn't clarify anything for me. Does this "undefined" mean the "undefined" used in the DWARF spec? Does DW_CFA_def_cfa with some register + DW_CFA_undefined on that register in fact yield this? Is that the only way to produce it?
These are the questions I meant to imply when I asked,
"What would such CFI look like exactly?"
If you want me to do it, step one is always to specify it completely.
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