[all-commits] [llvm/llvm-project] 8fdebf: [PAC][ThinLTO] Fix auth key for GOT entries of fun...

[Daniil Kovalev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8fdebff69d92fd3c6023bf2d0646ca909bb4ec05
      https://github.com/llvm/llvm-project/commit/8fdebff69d92fd3c6023bf2d0646ca909bb4ec05
  Author: Daniil Kovalev <dkovalev at accesssoftek.com>
  Date:   2025-04-19 (Sat, 19 Apr 2025)

  Changed paths:
    M lld/ELF/Driver.cpp
    A lld/test/ELF/lto/aarch64-pac-got-func.ll

  Log Message:
  -----------
  [PAC][ThinLTO] Fix auth key for GOT entries of function symbols (#131467)

Symtab is first filled with the data from the bitcode file, and all
undefined symbols except TLS ones are `STT_NOTYPE`. Since auth key for a
signed GOT entry depends on the symbol type being `STT_FUNC` or not, we
need to update the symtab after the bitcode is compiled to an ELF object
and update symbol types for function symbols. This patch implements the
described behavior.



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