[PATCH] D111658: [WIP] Add JSON output option to llvm-readelf

[Jayson Yan via Phabricator via llvm-commits]

Jaysonyan created this revision.
Jaysonyan added reviewers: leonardchan, phosek, kzhuravl.
Herald added subscribers: s.egerton, rupprecht, simoncook, emaste.
Herald added a reviewer: jhenderson.
Jaysonyan requested review of this revision.
Herald added subscribers: llvm-commits, MaskRay.
Herald added a project: LLVM.

This change adds JSON output to llvm-readelf. It is enabled through the --elf-output-style
option which now supports JSON in addition to the existing LLVM and GNU. It uses the
json::OStream to format and output information.

Currently this is mostly skeleton code but includes implementation for:

- printFileHeaders() (accessed through --file-headers or -h)
- printGroupSections() (accessed through --section-groups or -g)


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D111658

Files:
  llvm/test/tools/llvm-readobj/ELF/file-headers.test
  llvm/test/tools/llvm-readobj/ELF/groups.test
  llvm/test/tools/llvm-readobj/ELF/output-style.test
  llvm/tools/llvm-readobj/ELFDumper.cpp
  llvm/tools/llvm-readobj/llvm-readobj.cpp
  llvm/tools/llvm-readobj/llvm-readobj.h

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