[PATCH] D58047: [LLD][ELF][ARM] Synthesise missing .ARM.exidx sections.

[Peter Smith via Phabricator via llvm-commits]

peter.smith updated this revision to Diff 186267.
peter.smith added a comment.

Uploaded new diff to address review comments, main changes:

- Added expanded comment explaining why we need these sections.
- Moved the addition of the synthetic sections to where we add the sentinel and added test that fails if we don't.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58047/new/

https://reviews.llvm.org/D58047

Files:
  ELF/InputSection.cpp
  ELF/SyntheticSections.cpp
  ELF/SyntheticSections.h
  ELF/Writer.cpp
  test/ELF/arm-exidx-add-missing.s
  test/ELF/arm-exidx-canunwind.s
  test/ELF/arm-exidx-dedup.s
  test/ELF/arm-exidx-gc.s
  test/ELF/arm-exidx-no-add-missing.s
  test/ELF/arm-exidx-shared.s
  test/ELF/linkerscript/arm-exidx-sentinel-and-assignment.s

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