[Dwarf-discuss] Enhancement: Expression Operation Vendor Extensibility Opcode

Frank Ch. Eigler fche@redhat.com
Mon Mar 27 18:31:00 GMT 2023

Hi -

> I understand the desire for each particular vendor opcode to have a
> semantic meaning that is fixed throughout time. [...]  Does this
> continue to be an goal for DWARF6? Whether or not this is true, we
> should make this explicit.  If not, it would provide an opportunity
> for tool developers to begin building the DWARF version sensitive
> parsers necessary [...]

I'm not aware of any DWARF standard assertion about the persistence of
the semantics of vendor opcodes across time or versions.  If so, there
is nothing stopping a vendor from reusing any extension code toward
different ends in DWARF6.  That would not even take flag-day
coordination with other vendors.

- FChE

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