[Dwarf-discuss] Proposal: Error: DW_OP_entry_value description and examples

[Metzger, Markus T]

>### Section 2.5.1.7 Special Operations, p.37
>
>The first sentence of the description of DW_OP_entry_value reads:
>
>    The DW_OP_entry_value operation pushes the value that the described
>    location held upon entering the current subprogram.
>
>A DWARF expression does not describe a location, so this should read:
>
>    The DW_OP_entry_value operation evaluates an expression or register
>    location description as if it had been evaluated upon entering the
>    current subprogram, and pushes the value of the expression or content
>    of the register, respectively.

Aren't register location descriptions the only thing that, given appropriate
unwind rules, can actually be implemented?

Should this be restricted to only allow register location descriptions?

Regards,
Markus.
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