[clang] [clang][ptrauth] Warn about the use of a weak signing schema (PR #157779)

https://github.com/martinuy created https://github.com/llvm/llvm-project/pull/157779 In this change we added the -Wptrauth-weak-schema diagnostic (enabled by default on targets that support pointer authentication) to warn about the use of a weak signing schema for function pointers stored in g

[clang] [clang][ptrauth] Warn about the use of a weak signing schema (PR #157779)

https://github.com/martinuy updated https://github.com/llvm/llvm-project/pull/157779 >From 8fe991fb658d02351b2e819b275de1e821075f03 Mon Sep 17 00:00:00 2001 From: Martin Balao Alonso Date: Tue, 9 Sep 2025 18:29:38 -0700 Subject: [PATCH 1/3] [clang][ptrauth] Warn about the use of a weak signing

[clang] [clang][ptrauth] Warn about the use of a weak signing schema (PR #157779)

martinuy wrote: Thanks @kbeyls for having a look at this proposal. You raised a valid concern: a developer that is not explicitly adding the `__ptrauth` qualifier to their source code and is targeting an architecture that supports pointer authentication might be caught by surprise with this ne

[clang] [clang][ptrauth] Warn about the use of a weak signing schema (PR #157779)

martinuy wrote: @ojhunt May I ask you to have a look at this draft PR? Thanks! https://github.com/llvm/llvm-project/pull/157779 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

[clang] [clang][ptrauth] Warn about the use of a weak signing schema (PR #157779)

https://github.com/martinuy updated https://github.com/llvm/llvm-project/pull/157779 >From 91b44455ef04db0eaed778d34514acc3622eee54 Mon Sep 17 00:00:00 2001 From: Martin Balao Alonso Date: Tue, 9 Sep 2025 18:29:38 -0700 Subject: [PATCH 1/3] [clang][ptrauth] Warn about the use of a weak signing

[clang] [clang][ptrauth] Warn about the use of a weak signing schema (PR #157779)

https://github.com/martinuy updated https://github.com/llvm/llvm-project/pull/157779 >From 8fe991fb658d02351b2e819b275de1e821075f03 Mon Sep 17 00:00:00 2001 From: Martin Balao Alonso Date: Tue, 9 Sep 2025 18:29:38 -0700 Subject: [PATCH 1/6] [clang][ptrauth] Warn about the use of a weak signing

[clang] [clang][ptrauth] Warn about the use of a weak signing schema (PR #157779)

@@ -0,0 +1,60 @@ +// RUN: %clang_cc1 -triple arm64e-apple-ios -fptrauth-calls -fptrauth-intrinsics -fsyntax-only -Wno-unused-variable -verify %s +// RUN: %clang_cc1 -triple arm64e-apple-ios -DNO_PTRAUTH -fsyntax-only -Wno-unused-variable -verify=noptrauth %s + +// noptrauth-no-d

[clang] [clang][ptrauth] Warn about the use of a weak signing schema (PR #157779)

@@ -8357,6 +8357,16 @@ NamedDecl *Sema::ActOnVariableDeclarator( D.isFunctionDefinition()); } + // Warn about the use of a weak pointer authentication schema on a variable martinuy wrote: Sounds good, but I have a questio