On Mon, Jan 13, 2025 at 10:45 AM David Anderson via Dwarf-discuss < dwarf-discuss@lists.dwarfstd.org> wrote:
> On 1/13/25 07:17, John DelSignore via Dwarf-discuss wrote: > > Hi, > > > > Section 6.2 (Line Number Information) of the DWARF 5 spec does not seem > to constrain which DW_LNCT content types are valid for directory entries, > or at least I couldn't find where it does. > > > > Are DW_LNCT_directory_index, DW_LNCT_timestamp, DW_LNCT_size, and/or > DW_LNCT_MD5 content types valid for directory entries? If so, what do they > mean? If not, perhaps each of the DW_LNCT content types should explicitly > state where it's valid. > > > > Cheers, John D. > > Version 5 page 157 Sec 6.2.4 > "20.file_names (sequence of file name entries) > A sequence of file names and optional related information. Each entry is > encoded as described by the file_name_entry_format field. > > Entries in this sequence describe source files that > contribute to the line > number information for this compilation or > is used in other contexts, such as > in a declaration coordinate or a macro file inclusion." > > I think this means that file names are file names, not > directory names. Even if a directory contains only > one file, there is no hint of implied search of a directory > in the file_names list. > I guess Jon is referring to the 16th field in the header, "directories (sequence of directory names)" which uses the same encoding system (but a separate format field, so the directories can have different active fields than the files) and there doesn't seem to be a list of what's suitable in one and not the other. I don't feel too strongly about it - if someone finds a use case for putting the more file-centric attributes on directories, I guess more power to them? But equally having advice/suggestions if it helps someone seems fine too... Jon - was/is it a source of confusion for you/others?
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