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author | Daniil Kovalev <dkovalev@accesssoftek.com> | 2024-12-05 11:34:29 +0300 |
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committer | GitHub <noreply@github.com> | 2024-12-05 11:34:29 +0300 |
commit | 41cde465acfddb44d400b0a53bb57960762312a2 (patch) | |
tree | 8711f8e0eff2d0f0d0e01afab44a48f212b02cc6 /clang/lib/CodeGen/CodeGenFunction.cpp | |
parent | fd3907ccb583df99e9c19d2fe84e4e7c52d75de9 (diff) | |
download | llvm-41cde465acfddb44d400b0a53bb57960762312a2.zip llvm-41cde465acfddb44d400b0a53bb57960762312a2.tar.gz llvm-41cde465acfddb44d400b0a53bb57960762312a2.tar.bz2 |
[PAC][Driver] Add `-faarch64-jump-table-hardening` flag (#113149)
The flag is placed together with pointer authentication flags since they
serve the same security purpose of protecting against attacks on control
flow. The flag is not ABI-affecting and might be enabled separately if
needed, but it's also intended to be enabled as part of pauth-enabled
environments (e.g. pauthtest).
See also codegen implementation #97666.
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 f8138e9..2bc10cd 100644 --- a/clang/lib/CodeGen/CodeGenFunction.cpp +++ b/clang/lib/CodeGen/CodeGenFunction.cpp @@ -899,6 +899,8 @@ void CodeGenFunction::StartFunction(GlobalDecl GD, QualType RetTy, Fn->addFnAttr("ptrauth-auth-traps"); if (CodeGenOpts.PointerAuth.IndirectGotos) Fn->addFnAttr("ptrauth-indirect-gotos"); + if (CodeGenOpts.PointerAuth.AArch64JumpTableHardening) + Fn->addFnAttr("aarch64-jump-table-hardening"); // Apply xray attributes to the function (as a string, for now) bool AlwaysXRayAttr = false; |