[all-commits] [llvm/llvm-project] 8fefeb: [clang][ptrauth] reject incorrectly placed ptrauth...

[Oliver Hunt via All-commits]

  Branch: refs/heads/users/ojhunt/ptrauth-struct-function-ptr-field
  Home:   https://github.com/llvm/llvm-project
  Commit: 8fefeb81c38ad2f196a117103e40290171db51b6
      https://github.com/llvm/llvm-project/commit/8fefeb81c38ad2f196a117103e40290171db51b6
  Author: Oliver Hunt <oliver at apple.com>
  Date:   2025-05-02 (Fri, 02 May 2025)

  Changed paths:
    M clang/include/clang/Parse/Parser.h
    M clang/lib/Parse/ParseDecl.cpp
    M clang/lib/Parse/ParseDeclCXX.cpp
    A clang/test/Sema/ptrauth-struct-function-ptr-field.c

  Log Message:
  -----------
  [clang][ptrauth] reject incorrectly placed ptrauth qualifier

When parsing a function pointer typed field we use
Parser::ParseTypeQualifierListOpt, but then drops subsequent
type attributes and qualifiers unless explicitly handled.

There is an existing solution for the _Atomic qualifier, and
this PR simply extends that to __ptrauth for now. In future
we may want to investigate a more robust mechanism to ensure
type qualifiers are not silently dropped so that future type
qualifiers do not suffer the same problem.



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