[all-commits] [llvm/llvm-project] b9d636: [clang][ObjC][PAC] Add ptrauth protections to obje...

[Oliver Hunt via All-commits]

  Branch: refs/heads/users/ojhunt/ptrauth-objc-llvm21
  Home:   https://github.com/llvm/llvm-project
  Commit: b9d636d335e07368782aef45c9a9d8753186f0a5
      https://github.com/llvm/llvm-project/commit/b9d636d335e07368782aef45c9a9d8753186f0a5
  Author: Oliver Hunt <oliver at apple.com>
  Date:   2025-08-14 (Thu, 14 Aug 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Frontend/CompilerInvocation.cpp
    M clang/test/CodeGenObjC/ptrauth-block-isa.m

  Log Message:
  -----------
  [clang][ObjC][PAC] Add ptrauth protections to objective-c (#147899)

This PR introduces the use of pointer authentication to objective-c[++].

This includes:

* __ptrauth qualifier support for ivars
* protection of isa and super fields
* protection of SEL typed ivars
* protection of class_ro_t data
* protection of methodlist pointers and content



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