[Dwarf-discuss] gfortran / gcc on Mac puts control characters in N_SO STABS

[John DelSignore]

FWIW, when TotalView reads the DWARF, there are no control characters in the strings.

Cheers, John D.

On 3/15/24 13:12, Adrian Prantl wrote:


On Mar 15, 2024, at 9:22 AM, John DelSignore via Dwarf-discuss <dwarf-discuss@lists.dwarfstd.org><mailto:dwarf-discuss@lists.dwarfstd.org> wrote:


Thanks for looking at this. I sent a separate email with the object file attached directly to you.

>From my quick investigation the problem seems to be that gfortran uses a DW_FORM_string for the compile unit's name (rather than a DW_FORM_strp)


              DW_AT_name [DW_FORM_string]       ("/nfs/homes/jdelsign/hello.c")

and ld might have an off-by-one error when decoding the FORM (that part is speculation on my end based on that dwarfdump can decode the string fine, but it could also be a bug in gfortran and dwarfdump skips the control character when printing).

-- adrian



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