[all-commits] [llvm/llvm-project] 0db3a5: [llvm-objcopy][MachO] Handle relocation entries wh...

[Alexander Shaposhnikov via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 0db3a5a93e113d681e78ea5f7dd8cd1020d02a7b
      https://github.com/llvm/llvm-project/commit/0db3a5a93e113d681e78ea5f7dd8cd1020d02a7b
  Author: Alexander Shaposhnikov <alexshap at fb.com>
  Date:   2020-04-27 (Mon, 27 Apr 2020)

  Changed paths:
    A llvm/test/tools/llvm-objcopy/MachO/relocations.test
    M llvm/tools/llvm-objcopy/MachO/MachOReader.cpp
    M llvm/tools/llvm-objcopy/MachO/MachOWriter.cpp
    M llvm/tools/llvm-objcopy/MachO/Object.cpp
    M llvm/tools/llvm-objcopy/MachO/Object.h

  Log Message:
  -----------
  [llvm-objcopy][MachO] Handle relocation entries where r_extern is zero

Fix handling of relocations with r_extern == 0.
If r_extern == 0 then r_symbolnum is an index of a section rather than a symbol index.

Patch by Seiya Nuta and Alexander Shaposhnikov.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D78946