[all-commits] [llvm/llvm-project] f6b06b: [PAC] Implement function pointer re-signing (#98847)

[Akira Hatanaka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f6b06b42a3f4f59ff33da20d42358f2768eaf726
      https://github.com/llvm/llvm-project/commit/f6b06b42a3f4f59ff33da20d42358f2768eaf726
  Author: Akira Hatanaka <ahatanak at gmail.com>
  Date:   2024-07-18 (Thu, 18 Jul 2024)

  Changed paths:
    M clang/lib/CodeGen/Address.h
    M clang/lib/CodeGen/CGBuilder.h
    M clang/lib/CodeGen/CGExpr.cpp
    M clang/lib/CodeGen/CGExprScalar.cpp
    M clang/lib/CodeGen/CGPointerAuth.cpp
    M clang/lib/CodeGen/CGValue.h
    M clang/lib/CodeGen/CodeGenFunction.cpp
    M clang/lib/CodeGen/CodeGenFunction.h
    M clang/lib/Headers/ptrauth.h
    A clang/test/CodeGen/ptrauth-function-lvalue-cast-disc.c
    A clang/test/CodeGen/ptrauth-function-type-discriminator-cast.c

  Log Message:
  -----------
  [PAC] Implement function pointer re-signing (#98847)

Re-signing occurs when function type discrimination is enabled and a
function pointer is converted to another function pointer type that
requires signing using a different discriminator. A function pointer is
re-signed using discriminator zero when it's converted to a pointer to a
non-function type such as `void*`.

---------

Co-authored-by: Ahmed Bougacha <ahmed at bougacha.org>
Co-authored-by: John McCall <rjmccall at apple.com>



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications