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| author | Ahmed Bougacha <ahmed@bougacha.org> | 2024-08-09 11:49:50 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-08-09 11:49:50 -0700 |
| commit | 2eb6e30fe83ccce3cf01e596e73fa6385facd44b (patch) | |
| tree | c1f1bd37244974aea4108f2e4b981f0db4ae3bf4 /clang/lib/CodeGen/CodeGenFunction.cpp | |
| parent | ca7ad38ca0d241658da04bcfa63598b5519026f2 (diff) | |
| download | llvm-2eb6e30fe83ccce3cf01e596e73fa6385facd44b.zip llvm-2eb6e30fe83ccce3cf01e596e73fa6385facd44b.tar.gz llvm-2eb6e30fe83ccce3cf01e596e73fa6385facd44b.tar.bz2 | |
[clang] Wire -fptrauth-returns to "ptrauth-returns" fn attribute. (#102416)
We already ended up with -fptrauth-returns, the feature macro, the lang
opt, and the actual backend lowering.
The only part left is threading it all through PointerAuthOptions, to
drive the addition of the "ptrauth-returns" attribute to generated
functions.
While there, do minor cleanup on ptrauth-function-attributes.c.
This also adds ptrauth_key_return_address to ptrauth.h.
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenFunction.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp index af20155..4dc57d0 100644 --- a/clang/lib/CodeGen/CodeGenFunction.cpp +++ b/clang/lib/CodeGen/CodeGenFunction.cpp @@ -880,6 +880,8 @@ void CodeGenFunction::StartFunction(GlobalDecl GD, QualType RetTy, // Add pointer authentication attributes. const CodeGenOptions &CodeGenOpts = CGM.getCodeGenOpts(); + if (CodeGenOpts.PointerAuth.ReturnAddresses) + Fn->addFnAttr("ptrauth-returns"); if (CodeGenOpts.PointerAuth.FunctionPointers) Fn->addFnAttr("ptrauth-calls"); if (CodeGenOpts.PointerAuth.IndirectGotos) |