dwarf2sources fails to parse DWARF info when using DWARF-5

Affected images versions

• v2024dev2

Unaffected images versions

• up to v2024dev1

Steps to reproduce

• Build a debian package on v2024dev2 (with gcc-12 which has DWARF-5 enabled by default)

Expected result

• No error is found when running dh_setup_copyright

Actual result

• dh_setup_copyright complains with Error: Missing DW_AT_comp_dir

Reproducibility

1. ✅ always

Impact of bug

Broken license information for packages.

Root cause

describe in one line what caused the issue to give a hint to product teams whether they may be impacted or not

gcc enabled DWARF-5 by default on version 11 (v2024dev2 has v12 while v2023/v2024dev1 uses v10) which changes the format of DW_AT_comp_dir (and DW_AT_name) from DW_FORM_strp to DW_FORM_line_strp, thus causing dwarf2sources to fail to parse the DWARF info.

Outcomes

• pkg/dwarf2sources!13 (merged)

Management data

This section is for management only, it should be the last one in the description.

/cc @andrunko @em @sagar @sudarshan @wlozano

Phabricator link: https://phabricator.apertis.org/T9837