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[LLD][COFF] Add index to disambiguate archive members when using -wholearchive

Authored by zero9178 on Aug 14 2019, 12:34 PM.



When linking an archive with members that have the same name linking fails when using the -wholearchive option. This patch passes the index of the member in the archive to the offset parameter to disambiguate the member.

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zero9178 created this revision.Aug 14 2019, 12:34 PM
zero9178 edited projects, added lld; removed Restricted Project.Aug 14 2019, 12:38 PM
zero9178 removed subscribers: mehdi_amini, steven_wu, dexonsmith and 2 others.
Herald added a project: Restricted Project. · View Herald TranscriptAug 14 2019, 12:38 PM
zero9178 updated this revision to Diff 215217.Aug 14 2019, 1:15 PM

Fixed test to show regression and verify output

ruiu added inline comments.Aug 19 2019, 4:35 AM
191 ↗(On Diff #215217)

Just int would probably be better.

13–18 ↗(On Diff #215217)

This may break Windows buildbot on which path components are separated not by / but by \.

zero9178 updated this revision to Diff 218064.Aug 30 2019, 3:53 AM

Changed index from std::uint64_t to int. Made test accept both kinds of slashes

ruiu accepted this revision.Sep 2 2019, 1:11 AM

LGTM with this change.

191 ↗(On Diff #218064)

Another nit: memberIndex is better than memberOffset because offset implies that that variable contains a distance from the beginning of the file and a current member (which does not always increment by one).

This revision is now accepted and ready to land.Sep 2 2019, 1:11 AM
zero9178 updated this revision to Diff 218439.Sep 3 2019, 5:07 AM

Changed memberOffset to memberIndex as suggested by reviwer. Would need someone to commit this for me

zero9178 marked 3 inline comments as done.Sep 3 2019, 5:07 AM

Friendly after a week ping.

This revision was automatically updated to reflect the committed changes.