[all-commits] [llvm/llvm-project] c941db: [macho] Allow CPUSubtype to be adjusted before wri...

[Daniel Sanders via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: c941db5b1acdc45fc1c50762684f1014e981abc6
      https://github.com/llvm/llvm-project/commit/c941db5b1acdc45fc1c50762684f1014e981abc6
  Author: Daniel Sanders <daniel_l_sanders at apple.com>
  Date:   2019-11-18 (Mon, 18 Nov 2019)

  Changed paths:
    M llvm/include/llvm/MC/MCMachObjectWriter.h

  Log Message:
  -----------
  [macho] Allow CPUSubtype to be adjusted before writing it to a file

Summary:
It's not always possible for a target to provide a MachO CPUSubtype up
front as is required by the current implementation. Sometimes you need more
information like the particular CPU implementation you are targeting.

Give MCMachObjectTargetWriter subclasses the opportunity to modify the
CPUSubtype after the MCMachObjectTargetWriter is created but before the
object starts being written. Typically this would be done in response to
instructions from a TargetStreamer.

Reviewers: pete

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70344


  Commit: 17919017878e9abda5bb33a38199c593b151dcd7
      https://github.com/llvm/llvm-project/commit/17919017878e9abda5bb33a38199c593b151dcd7
  Author: Daniel Sanders <daniel_l_sanders at apple.com>
  Date:   2019-11-18 (Mon, 18 Nov 2019)

  Changed paths:
    M llvm/include/llvm/Object/MachO.h
    M llvm/lib/Object/MachOObjectFile.cpp

  Log Message:
  -----------
  [macho] Allow CPUSubtype to contribute to architecture identification

Summary:
Sometimes the CPUSubtype determines the Triple::ArchType that must be used.
Add the subtype to the API's to allow targets that need this to correctly
identify the contents of the binary.

Reviewers: pete

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70345


Compare: https://github.com/llvm/llvm-project/compare/2492b5a12550...17919017878e