Hi Michael and Tony, The github reference for SourceLink has both the schema for the json file (https://github.com/dotnet/designs/blob/main/accepted/2020/diagnostics/source-link.md#source-link-json-schema) and several examples of the info contained there (https://github.com/dotnet/designs/blob/main/accepted/2020/diagnostics/source-link.md#examples). Please let me know what needs to be clarified and I'll be happy to provide additional information.
Thanks, Eugene -----Original Message----- From: Dwarf-Discuss <dwarf-discuss-boun...@lists.dwarfstd.org> On Behalf Of Michael Eager via Dwarf-Discuss Sent: Wednesday, May 04, 2022 7:14 PM To: Eugene Rozenfeld <eugene.rozenf...@microsoft.com>; dwarf-discuss@lists.dwarfstd.org Subject: [EXTERNAL] Re: [Dwarf-Discuss] Support for SourceLink in DWARF Hi Eugene -- Please work with Tony Tye (cc'ed), the champion on this issue, to draft a more complete proposal. Much of the description on the Github reference for SourceLink is about the implementation in a PDB file and less about the what information is contained and how it is used. On 5/4/22 18:54, Eugene Rozenfeld via Dwarf-Discuss wrote: > Hello, > > I work on the Linux tools team at Microsoft and I'd like to comment on the > issue > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdwarfstd.org%2FShowIssue.php%3Fissue%3D181223.1&data=05%7C01%7CEugene.Rozenfeld%40microsoft.com%7Ce2f2311ad7b6419653ad08da2e3cfb99%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637873136819887860%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=vhy1WMTrcJzYM%2F4HRnaq5D1xzPMxfpyqIK%2FZ182%2F%2Fqk%3D&reserved=0 > that proposes to add info similar to SourceLink to the DWARF format. > We are interested in pushing this forward both as a developer experience > improvement and as a step in improving secure supply chain guarantees. It's > important to be able to figure out where the sources come from if we want to > check the binary integrity. > > The issue discusses two approaches: one involves augmenting the DWARF format > and the other one relies on buildid's and debuginfod servers. We believe the > approach whereby an arbitrary URL for source retrieval (e.g., github, VSTS, > etc.) can be specified offers greater applicability and flexibility over > relying on buildid and debuginfod servers. For instance, it can accommodate > scenarios where storing debuginfo along with sources on a debuginfod server > may not always be feasible. > > The issue discusses two approaches to modifying the DWARF format: one is > augmenting the existing file table to allow the specification of a URL (the > proposed resolution) and the other one is a per CU URL table that would allow > the equivalent of SourceLink wildcards. The tradeoff is simplicity vs. > potential DWARF file size saving if many source files are involved in the > compilation. We are ok with either resolution. The important thing is a > standard way to encode the source file information so that the producers and > consumers agree. > > Thank you, > > Eugene > > _______________________________________________ > Dwarf-Discuss mailing list > Dwarf-Discuss@lists.dwarfstd.org > https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists > .dwarfstd.org%2Flistinfo.cgi%2Fdwarf-discuss-dwarfstd.org&data=05% > 7C01%7CEugene.Rozenfeld%40microsoft.com%7Ce2f2311ad7b6419653ad08da2e3c > fb99%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637873136819887860%7 > CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1 > haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=O%2FOoUs%2BdLeybBIIprxna > ahOeKGwfQOkJt7lONyE%2BDLw%3D&reserved=0 > -- Michael Eager _______________________________________________ Dwarf-Discuss mailing list Dwarf-Discuss@lists.dwarfstd.org https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.dwarfstd.org%2Flistinfo.cgi%2Fdwarf-discuss-dwarfstd.org&data=05%7C01%7CEugene.Rozenfeld%40microsoft.com%7Ce2f2311ad7b6419653ad08da2e3cfb99%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637873136819887860%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=O%2FOoUs%2BdLeybBIIprxnaahOeKGwfQOkJt7lONyE%2BDLw%3D&reserved=0 _______________________________________________ Dwarf-Discuss mailing list Dwarf-Discuss@lists.dwarfstd.org http://lists.dwarfstd.org/listinfo.cgi/dwarf-discuss-dwarfstd.org
