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| author | Xiang1 Zhang <xiang1.zhang@intel.com> | 2020-10-22 09:46:42 +0800 |
|---|---|---|
| committer | Xiang1 Zhang <xiang1.zhang@intel.com> | 2020-10-22 10:08:14 +0800 |
| commit | 7c3fea7721e421de235917d9454d448f976500fc (patch) | |
| tree | 7a0295552af02255aa73b6c4be8c1bec2efe9a4f /llvm/lib/CodeGen/StackProtector.cpp | |
| parent | 007ffdc18c503094e705ffcdd3ad51b829b77348 (diff) | |
| download | llvm-7c3fea7721e421de235917d9454d448f976500fc.zip llvm-7c3fea7721e421de235917d9454d448f976500fc.tar.gz llvm-7c3fea7721e421de235917d9454d448f976500fc.tar.bz2 | |
[X86] Support customizing stack protector guard
Reviewed By: nickdesaulniers, MaskRay
Differential Revision: https://reviews.llvm.org/D88631
Diffstat (limited to 'llvm/lib/CodeGen/StackProtector.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/StackProtector.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/StackProtector.cpp b/llvm/lib/CodeGen/StackProtector.cpp index 3d961af..8074793 100644 --- a/llvm/lib/CodeGen/StackProtector.cpp +++ b/llvm/lib/CodeGen/StackProtector.cpp @@ -381,7 +381,10 @@ bool StackProtector::RequiresStackProtector() { static Value *getStackGuard(const TargetLoweringBase *TLI, Module *M, IRBuilder<> &B, bool *SupportsSelectionDAGSP = nullptr) { - if (Value *Guard = TLI->getIRStackGuard(B)) + Value *Guard = TLI->getIRStackGuard(B); + auto GuardMode = TLI->getTargetMachine().Options.StackProtectorGuard; + if ((GuardMode == llvm::StackProtectorGuards::TLS || + GuardMode == llvm::StackProtectorGuards::None) && Guard) return B.CreateLoad(B.getInt8PtrTy(), Guard, true, "StackGuard"); // Use SelectionDAG SSP handling, since there isn't an IR guard. |