[all-commits] [llvm/llvm-project] bb627b: [BOLT] Ignore special symbols as function aliases ...

[Amir Ayupov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bb627b0a0c05e0bb04ae7f984b8e7fcd84906061
      https://github.com/llvm/llvm-project/commit/bb627b0a0c05e0bb04ae7f984b8e7fcd84906061
  Author: Amir Ayupov <aaupov at fb.com>
  Date:   2024-05-20 (Mon, 20 May 2024)

  Changed paths:
    M bolt/lib/Rewrite/RewriteInstance.cpp
    M bolt/test/runtime/X86/hot-end-symbol.s

  Log Message:
  -----------
  [BOLT] Ignore special symbols as function aliases in updateELFSymbolTable

Exempt special symbols (hot text/data and _end symbol) from normal
handling. We only need to set their value and make them absolute.

If these symbols are handled as normal symbols and if they alias
functions we may create non-sensical symbols, e.g. __hot_start.cold.

Test Plan: updated hot-end-symbol.s

Reviewers: maksfb, rafaelauler, ayermolo, dcci

Reviewed By: dcci, maksfb

Pull Request: https://github.com/llvm/llvm-project/pull/92713



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