[PATCH] D94475: [MC] Emit ELF files with ELFOSABI_GNU if specified in triple

[Moritz Sichert via Phabricator via llvm-commits]

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This makes a slight difference when using GNU binutils to inspect ELF
files. For example when defining a symbol of type STT_GNU_IFUNC, readelf
shows this with ELFOSABI_GNU:

  3: 0000000000000001     0 IFUNC   GLOBAL DEFAULT    2 my_ifunc

But this with ELFOSABI_NONE:

  3: 0000000000000001     0 <OS specific>: 10 GLOBAL DEFAULT    2 my_ifunc


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D94475

Files:
  llvm/include/llvm/MC/MCELFObjectWriter.h
  llvm/lib/Target/AArch64/MCTargetDesc/AArch64AsmBackend.cpp
  llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
  llvm/lib/Target/AVR/MCTargetDesc/AVRAsmBackend.cpp
  llvm/lib/Target/AVR/MCTargetDesc/AVRAsmBackend.h
  llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp
  llvm/lib/Target/Lanai/MCTargetDesc/LanaiAsmBackend.cpp
  llvm/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
  llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
  llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp
  llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp
  llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCAsmBackend.cpp
  llvm/lib/Target/VE/MCTargetDesc/VEAsmBackend.cpp
  llvm/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp

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