[all-commits] [llvm/llvm-project] 16cd5c: [BOLT] Ignore AArch64 markers outside their sectio...

[Jacob Bramley via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 16cd5cdf4d6387e34d2bb723bc26c331c8d89d75
      https://github.com/llvm/llvm-project/commit/16cd5cdf4d6387e34d2bb723bc26c331c8d89d75
  Author: Jacob Bramley <jacob.bramley at arm.com>
  Date:   2024-11-07 (Thu, 07 Nov 2024)

  Changed paths:
    M bolt/lib/Rewrite/RewriteInstance.cpp
    A bolt/test/AArch64/Inputs/spurious-marker-symbol.yaml
    A bolt/test/AArch64/spurious-marker-symbol.test
    M llvm/include/llvm/Object/ObjectFile.h

  Log Message:
  -----------
  [BOLT] Ignore AArch64 markers outside their sections. (#74106)

AArch64 uses $d and $x symbols to delimit data embedded in code.
However, sometimes we see $d symbols, typically in .eh_frame, with
addresses that belong to different sections. These occasionally fall
inside .text functions and cause BOLT to stop disassembling, which in
turn causes DWARF CFA processing to fail.

As a workaround, we just ignore symbols with addresses outside the
section they belong to. This behaviour is consistent with objdump and
similar tools.



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