[all-commits] [llvm/llvm-project] 07f8a6: [clang] Ensure pointers passed to runtime support ...

[Oliver Hunt via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 07f8a65d09608d67bfd6adbd62bb0999c7363456
      https://github.com/llvm/llvm-project/commit/07f8a65d09608d67bfd6adbd62bb0999c7363456
  Author: Oliver Hunt <oliver at apple.com>
  Date:   2024-07-17 (Wed, 17 Jul 2024)

  Changed paths:
    M clang/lib/CodeGen/CGDeclCXX.cpp
    M clang/lib/CodeGen/CodeGenFunction.h
    M clang/lib/CodeGen/ItaniumCXXABI.cpp
    A clang/test/CodeGenCXX/ptrauth-static-destructors.cpp
    A clang/test/CodeGenCXX/ptrauth-throw.cpp

  Log Message:
  -----------
  [clang] Ensure pointers passed to runtime support functions are correctly signed (#98276)

Updates codegen for global destructors and raising exceptions to ensure
that the function pointers being passed are signed using the correct
schema.

Notably this requires that CodeGenFunction::createAtExitStub to return
an opaque Constant* rather than a Function* as the value being emitted
is no longer necessarily a raw function pointer depending on the
configured ABI.

Co-Authored-By: Akira Hatanaka <ahatanaka at apple.com>
Co-Authored-By: John McCall <rjmccall at apple.com>



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