Adding a few folks working on Clang's DWARF5 functionality to see if this is a known bug (David Anderson mentioned it may've come from Clang r327823) and/or has been fixed.
Perhaps a minimal example that produces this behavior/bug would be useful for David to have (not sure if he wants/needs it if this is already fixed and was never released in an official clang release? David?) On Sun, Apr 15, 2018 at 7:53 PM David Blaikie <dblai...@gmail.com> wrote: > Does your example have a DW_AT_producer string by chance? > > On Sat, Apr 14, 2018 at 4:03 PM David Anderson via Dwarf-Discuss < > email@example.com> wrote: > >> I've just pushed a new version of libdwarf/dwarfdump to sourceforge. >> I mention this here because at least one compiler version is emitting >> an incorrect .debug_str_offsets section (I believe). >> >> You can get the source with >> git clone git://git.code.sf.net/p/libdwarf/code >> >> The new dwarfdump option --print-str-offsets >> will cause dwarfdump to access new libdwarf functions to >> print the DWARF5 .debug_str_offsets data (headers and everything) >> independently of any other >> section. >> >> The example I have in hand (the only one so far) seems to have >> the content of the section a bit wrong: the header of the only >> table in it has an incorrect length value. Dwarfdump and >> libdwarf report the apparent botch. Hmm. >> The compiler creating this example may have >> already been fixed (I don't know). >> >> Any smallish object files with DWARF5 .debug_str_offsets that >> can be put into the public regression tests base would be most >> welcome. Especially one with multiple headers, such as >> would most likely be created by a link step. >> >> For information: >> https://www.prevanders.net/dwarf.html >> and click on Work In Progress for what has >> happened recently. >> >> Regrettably, at present using cmake to build is not >> working. We hope to fix that before long. >> ./configure ; make >> works, of course. >> >> DavidA. >> >> _______________________________________________ >> Dwarf-Discuss mailing list >> Dwarf-Discuss@lists.dwarfstd.org >> http://lists.dwarfstd.org/listinfo.cgi/dwarf-discuss-dwarfstd.org >> >
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