Commit Graph

4 Commits

Author SHA1 Message Date
Nico Weber 5b04e0a3fd lld-link: Allow backward references between associated comdats
References between associated comdats are invalid per COFF spec, but the newest
Windows SDK contains obj files that have these references
(https://bugs.chromium.org/p/chromium/issues/detail?id=925943#c13). So add back
support for them and add tests for them. The old code handled them fine.

This makes lld-link match the behavior of newer link.exe versions as far as I
can tell. (The behavior before this change matched the behavior of older
link.exe versions.)

This mostly reverts r352254.

Differential Revision: https://reviews.llvm.org/D57387

llvm-svn: 352508
2019-01-29 15:50:31 +00:00
Nico Weber 38170e444f lld/coff: Make assoc comdat diag a bit more detailed
Many different sections can have the same name, so include the indices of the
sections mentioned in the diagnostic too.

I'm debugging something I can't repro locally, maybe this will help.

llvm-svn: 352428
2019-01-28 21:16:15 +00:00
Nico Weber 6bb3a1aa75 lld-link: Store comdat selection in SectionChunk, reject more invalid associated comdats
I need the comdat selection for PR40094. To keep the patch for that smaller,
I'm adding it here, and as a first application I'm using it to reject
associative comdats referring to earlier associative comdats. Depends on
D56929; together with that all associative comdats referring to other
associative comdats are now rejected.

Differential Revision: https://reviews.llvm.org/D56931

llvm-svn: 352254
2019-01-26 00:14:52 +00:00
Nico Weber cf8baa8307 lld/coff: Rename two tests from .s to .test
llvm-svn: 352074
2019-01-24 18:30:33 +00:00