[Dwarf-discuss] Location expressions for partially-optimized-out structs

Kyle Huey khuey@pernos.co
Wed Feb 28 17:07:19 GMT 2024

On Tue, Feb 27, 2024 at 9:35 PM Cary Coutant <ccoutant@gmail.com> wrote:
> > The text for DW_OP_bit_piece, on the other hand, does explicitly
> > contemplate this, containing the language:
> >
> > If the location description is empty, the offset doesn’t matter and
> > the DW_OP_bit_piece operation describes a piece consisting of the
> > given number of bits whose values are undefined.
> >
> > I propose adding similar language to the description of DW_OP_piece. e.g.
> This has been clarified for DWARF 6; see:
>     https://dwarfstd.org/issues/181205.1.html
> -cary

gmail claims this was rejected from your inbox last night even though
it did go through to the list, so resending below


Mmm, the location where that was inserted seems odd. I specifically
looked at the latest working draft for something like this before
sending my email and didn't find it, although I do see if now that I
know the exact text to search for. Is there a reason it's not in the
DW_OP_piece specific subsection (especially since the language in the
DW_OP_bit_piece subsection is still there), or in the first paragraph

- Kyle

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