[PATCH] D78927: [yaml2obj] - Introduce the "Offset" property for sections.

[George Rimar via Phabricator via llvm-commits]

grimar created this revision.
grimar added reviewers: jhenderson, MaskRay.
Herald added subscribers: hiraditya, emaste.
Herald added a reviewer: espindola.
Herald added a project: LLVM.

Currently there is no good way to set a physical offset for a section:

- We have the `ShOffset` that allows to override the `sh_offset`, but it does not affect the real data written.
- We can use a `Filler` to create an artificial gap, but it is more like a hack rather than a proper solution for this problem.

This patch adds the `Offset` property which allows setting physical
offsets for sections.

It also generalizes the code, so that we set sh_offset field in one place.


https://reviews.llvm.org/D78927

Files:
  llvm/include/llvm/ObjectYAML/ELFYAML.h
  llvm/lib/ObjectYAML/ELFEmitter.cpp
  llvm/lib/ObjectYAML/ELFYAML.cpp
  llvm/test/tools/yaml2obj/ELF/custom-null-section.yaml
  llvm/test/tools/yaml2obj/ELF/section-offset.yaml

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