On 23/05/18 18:28, David Anderson wrote: > On 05/23/2018 01:56 AM, Richard Earnshaw wrote: >> It's perfectly legal to have multiple sections with the same name in an >> ELF file. All relevant inter section data is conveyed by the section's >> unique index. Having identical names for sections is important for >> getting link ordering correct. And also, for dwarf because the section >> names have specific meanings that are not otherwise conveyed by >> attribute data. > > So, given two .debug_info and two .debug_line, the only place I can > think of that links > the pieces together (ie right .debug_line from a .debug_info) as > intended would be relocation information. > Similar for .debug_abbrev. > Is that the entire key here? > > DavidA. >
I'm afraid I can't remember all the details; Keith might know more. I think it's a combination of a number of things: - Use of section groups - keep all of a group or none of it - relocation information - section ordering rules: eg if I have two groups (A B) and (C D) and coalescing requires that A and C are placed in one output section and B and D in another, then the only permitted orders are (A C) (B D) or (B D) (A C) - ie (A C) (D B) is not a valid ordering. R. _______________________________________________ Dwarf-Discuss mailing list Dwarf-Discuss@lists.dwarfstd.org http://lists.dwarfstd.org/listinfo.cgi/dwarf-discuss-dwarfstd.org
