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| author | Oliver Hunt <oliver@apple.com> | 2025-08-13 22:01:24 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-08-13 22:01:24 -0700 |
| commit | d8850ee6c08fe38d992fb6f61d55a6afcaad6e6a (patch) | |
| tree | b336a1efa14d31421482623fce1afebf6c619f2c /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 9f96e3f80f5d25e50ca8423d4eb9063989b85f0b (diff) | |
| download | llvm-d8850ee6c08fe38d992fb6f61d55a6afcaad6e6a.zip llvm-d8850ee6c08fe38d992fb6f61d55a6afcaad6e6a.tar.gz llvm-d8850ee6c08fe38d992fb6f61d55a6afcaad6e6a.tar.bz2 | |
[clang][Obj-C][PAC] Add support for authenticating block metadata (#152978)
Introduces the use of pointer authentication to protect the invocation,
copy and dispose, reference, and descriptor pointers in Objective-C
block objects.
Resolves #141176
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
| -rw-r--r-- | clang/lib/Frontend/CompilerInvocation.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp index 2ea3ed7..a4d1896 100644 --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -1542,6 +1542,16 @@ void CompilerInvocation::setDefaultPointerAuthOptions( Discrimination::Constant, InitFiniPointerConstantDiscriminator); } + Opts.BlockInvocationFunctionPointers = + PointerAuthSchema(Key::ASIA, true, Discrimination::None); + Opts.BlockHelperFunctionPointers = + PointerAuthSchema(Key::ASIA, true, Discrimination::None); + Opts.BlockByrefHelperFunctionPointers = + PointerAuthSchema(Key::ASIA, true, Discrimination::None); + Opts.BlockDescriptorPointers = + PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, + BlockDescriptorConstantDiscriminator); + Opts.ObjCMethodListFunctionPointers = PointerAuthSchema(Key::ASIA, true, Discrimination::None); Opts.ObjCMethodListPointer = @@ -3621,7 +3631,6 @@ static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, Opts.PointerAuthELFGOT = Args.hasArg(OPT_fptrauth_elf_got); Opts.AArch64JumpTableHardening = Args.hasArg(OPT_faarch64_jump_table_hardening); - Opts.PointerAuthObjcIsa = Args.hasArg(OPT_fptrauth_objc_isa); Opts.PointerAuthObjcClassROPointers = Args.hasArg(OPT_fptrauth_objc_class_ro); Opts.PointerAuthObjcInterfaceSel = |