[PATCH] D72344: [LLD][ELF][ARM][AArch64] Only round up ThunkSection Size when large OS.

[Peter Smith via Phabricator via llvm-commits]

peter.smith updated this revision to Diff 238012.
peter.smith marked an inline comment as done.
peter.smith edited the summary of this revision.
peter.smith added a comment.

Updated the fix, and description after testing on a real linux kernel allyesconfig build. The description contains the full details, which should also be present in the comment. In summary we round up the size of a thunk section to nearest 4KiB when:

- The erratum fix is being used.
- The thunk section may be placed before the end of Output Section so there may be code after it.
- The InputSectionDescription is larger than  4KiB.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72344/new/

https://reviews.llvm.org/D72344

Files:
  lld/ELF/Relocations.cpp
  lld/ELF/SyntheticSections.cpp
  lld/ELF/SyntheticSections.h
  lld/test/ELF/aarch64-cortex-a53-843419-thunk-align.s
  lld/test/ELF/aarch64-cortex-a53-843419-thunk.s
  lld/test/ELF/arm-fix-cortex-a8-thunk-align.s
  lld/test/ELF/arm-fix-cortex-a8-thunk.s

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