[all-commits] [llvm/llvm-project] 85c15e: [BOLT][PAC] Warn about synchronous unwind tables

[Gergely Bálint via All-commits]

  Branch: refs/heads/users/bgergely0/bolt-warn-on-sync-unw
  Home:   https://github.com/llvm/llvm-project
  Commit: 85c15eb2ad4a572ad725b06c499d57d1a6af9b1e
      https://github.com/llvm/llvm-project/commit/85c15eb2ad4a572ad725b06c499d57d1a6af9b1e
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M bolt/lib/Passes/PointerAuthCFIAnalyzer.cpp
    A bolt/test/runtime/AArch64/pacret-synchronous-unwind.cpp

  Log Message:
  -----------
  [BOLT][PAC] Warn about synchronous unwind tables

BOLT currently ignores functions with synchronous PAuth DWARF info.
When more than 10% of functions get ignored for inconsistencies, we
should emit a warning to only use asynchronous unwind tables.

See also: #165215


  Commit: ced537afdeaefc31beb0265e3881104c2fccfe04
      https://github.com/llvm/llvm-project/commit/ced537afdeaefc31beb0265e3881104c2fccfe04
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M bolt/lib/Passes/PointerAuthCFIAnalyzer.cpp
    M bolt/test/AArch64/pacret-cfi-incorrect.s

  Log Message:
  -----------
  [BOLT] Use opts::Verbosity in PointerAuthCFIAnalyzer


  Commit: 0f93cb9c9cbfd095ed7c39cd296f36ed570789a4
      https://github.com/llvm/llvm-project/commit/0f93cb9c9cbfd095ed7c39cd296f36ed570789a4
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M bolt/lib/Passes/PointerAuthCFIAnalyzer.cpp

  Log Message:
  -----------
  [BOLT] Add comment about the chosen threshold


  Commit: ed5fa9bcaad82a484991523f426e647ec7d23c9c
      https://github.com/llvm/llvm-project/commit/ed5fa9bcaad82a484991523f426e647ec7d23c9c
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M bolt/lib/Passes/PointerAuthCFIAnalyzer.cpp

  Log Message:
  -----------
  [BOLT] PointerAuthCFIAnalyzer: return early if there is no work

- makes sure we do not divide by zero, to calculate the % of ignored
  functions.


Compare: https://github.com/llvm/llvm-project/compare/06d2c2b24bca...ed5fa9bcaad8

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