DWARF Standard


220708.1 David Blaikie Remove edge (fo) from Figure B.2 Error Accepted David Blaikie

Section B.2, pg 278
  Page 280 describes the (fo) link is described as "The operand of the 
DW_OP_call_ref DWARF expression operator is the offset of a debugging 
information entry in the debug_info.dwo section of another compilation 
unit. Similar for attribute operands that use DW_FORM_ref_addr."

  From http://lists.dwarfstd.org/private.cgi/dwarf-workgroup-dwarfstd.org/2021-May/001100.html

  "I think the (fo) link is not possible right now (there's no way to 
  compute cross-CU references currently, they would require the packaging 
  tool to fixup the offsets, which is an anti-goal) - 
  for more context on that."

It's also unclear how two CUs would be produced in a single DWO (to allow 
a cross-unit reference between them to be produced, ignoring how that would 
be handled during packaging/DWP creation).

Proposed Resolution:
  Remove (fo) from Figure B.2 and the associated list of edge descriptions
  that follows/is part of the figure.

2022-11-14:  Accepted.

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