[PATCH] D116900: [ELF] Support mixed TLSDESC and TLS GD

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
MaskRay added reviewers: ikudrin, peter.smith.
Herald added subscribers: pengfei, arichardson, emaste.
MaskRay requested review of this revision.
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We only support both TLSDESC and TLS GD for x86 so this is an x86-specific
problem. If both are used, only one R_X86_64_TLSDESC is produced and TLS GD
accesses will incorrectly reference R_X86_64_TLSDESC. Fix this by introducing
SymbolAux::tlsDescIdx.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116900

Files:
  lld/ELF/InputSection.cpp
  lld/ELF/Relocations.cpp
  lld/ELF/Symbols.h
  lld/ELF/SyntheticSections.cpp
  lld/ELF/SyntheticSections.h
  lld/test/ELF/x86-64-tlsdesc-gd-mixed.s

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