[PATCH] D35640: [lld] [COFF] Align import address chunks to the pointer size

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo created this revision.
Herald added subscribers: kristof.beyls, javed.absar, aemerson.

This fixes cases on ARM64 when importing from more than one DLL, in case the imports from the first DLL ended up unaligned.

When fixing up a IMAGE_REL_ARM64_PAGEOFFSET_12L, which shifts the offset by the load/store size, check that the shift doesn't discard any bits. (This would also detect if the import address chunks were unaligned.)


https://reviews.llvm.org/D35640

Files:
  COFF/Chunks.cpp
  COFF/DLL.cpp
  test/COFF/Inputs/library2-arm64.lib
  test/COFF/Inputs/library2.def
  test/COFF/arm64-import2.test

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