37 lines
1.3 KiB
Text
37 lines
1.3 KiB
Text
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Add retguard for arm64.
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Index: lib/Target/AArch64/AArch64FrameLowering.h
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--- lib/Target/AArch64/AArch64FrameLowering.h.orig
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+++ lib/Target/AArch64/AArch64FrameLowering.h
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@@ -13,6 +13,7 @@
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#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64FRAMELOWERING_H
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#define LLVM_LIB_TARGET_AARCH64_AARCH64FRAMELOWERING_H
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+#include "AArch64ReturnProtectorLowering.h"
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#include "llvm/Support/TypeSize.h"
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#include "llvm/CodeGen/TargetFrameLowering.h"
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@@ -22,9 +23,12 @@ class MCCFIInstruction;
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class AArch64FrameLowering : public TargetFrameLowering {
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public:
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+
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+ const AArch64ReturnProtectorLowering RPL;
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+
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explicit AArch64FrameLowering()
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: TargetFrameLowering(StackGrowsDown, Align(16), 0, Align(16),
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- true /*StackRealignable*/) {}
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+ true /*StackRealignable*/), RPL() {}
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void
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emitCalleeSavedFrameMoves(MachineBasicBlock &MBB,
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@@ -38,6 +42,8 @@ class AArch64FrameLowering : public TargetFrameLowerin
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/// the function.
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void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
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void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
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+
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+ const ReturnProtectorLowering *getReturnProtector() const override;
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bool canUseAsPrologue(const MachineBasicBlock &MBB) const override;
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