[all-commits] [llvm/llvm-project] 47e466: [llvm-objdump] Add -dyld_info to llvm-otool

[Daniel Bertalan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 47e4663c4eacaedab63e407651f5b045446bb36d
      https://github.com/llvm/llvm-project/commit/47e4663c4eacaedab63e407651f5b045446bb36d
  Author: Daniel Bertalan <dani at danielbertalan.dev>
  Date:   2022-08-28 (Sun, 28 Aug 2022)

  Changed paths:
    M llvm/include/llvm/BinaryFormat/MachO.h
    M llvm/include/llvm/Object/MachO.h
    M llvm/lib/Object/MachOObjectFile.cpp
    M llvm/test/tools/llvm-objdump/MachO/dyld-info.test
    M llvm/tools/llvm-objdump/MachODump.cpp

  Log Message:
  -----------
  [llvm-objdump] Add -dyld_info to llvm-otool

This option outputs the location, encoded value and target of chained
fixups, using the same format as `otool -dyld_info`.

This initial implementation only supports the DYLD_CHAINED_PTR_64 and
DYLD_CHAINED_PTR_64_OFFSET pointer encodings, which are used in x86_64
and arm64 userspace binaries.

When Apple's effort to upstream their chained fixups code continues,
we'll replace this code with the then-upstreamed code. But we need
something in the meantime for testing ld64.lld's chained fixups code.

Differential Revision: https://reviews.llvm.org/D132036