[PATCH] D58116: [llvm-objcopy] Improve section removal

[Eugene Leviant via Phabricator via llvm-commits]

evgeny777 created this revision.
evgeny777 added reviewers: jhenderson, rupprecht.
Herald added subscribers: jdoerfert, jakehehrlich, arichardson, emaste.
Herald added a reviewer: espindola.
Herald added a reviewer: alexshap.

This patch changes segment size, when last section is removed from the file. Segment also can be removed completely when it doesn't contain section (such  behavior differs from GNU objcopy which leaves empty segment with warning).

This patch changes way section and segment layout is calculated and is a base for `--update-section`, `--pad-to` and few other options.


https://reviews.llvm.org/D58116

Files:
  test/tools/llvm-objcopy/ELF/fixup-segment.test
  tools/llvm-objcopy/ELF/Object.cpp
  tools/llvm-objcopy/ELF/Object.h

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