36 lines
1.3 KiB
Plaintext
36 lines
1.3 KiB
Plaintext
Add retguard for arm64.
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Index: lib/Target/AArch64/AArch64FrameLowering.cpp
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--- lib/Target/AArch64/AArch64FrameLowering.cpp.orig
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+++ lib/Target/AArch64/AArch64FrameLowering.cpp
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@@ -123,6 +123,7 @@
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#include "AArch64InstrInfo.h"
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#include "AArch64MachineFunctionInfo.h"
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#include "AArch64RegisterInfo.h"
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+#include "AArch64ReturnProtectorLowering.h"
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#include "AArch64Subtarget.h"
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#include "AArch64TargetMachine.h"
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#include "MCTargetDesc/AArch64AddressingModes.h"
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@@ -2753,6 +2754,10 @@ void AArch64FrameLowering::determineCalleeSaves(Machin
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? RegInfo->getBaseRegister()
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: (unsigned)AArch64::NoRegister;
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+ if (MFI.hasReturnProtectorRegister() && MFI.getReturnProtectorNeedsStore()) {
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+ SavedRegs.set(MFI.getReturnProtectorRegister());
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+ }
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+
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unsigned ExtraCSSpill = 0;
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// Figure out which callee-saved registers to save/restore.
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for (unsigned i = 0; CSRegs[i]; ++i) {
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@@ -3532,6 +3537,10 @@ unsigned AArch64FrameLowering::getWinEHFuncletFrameSiz
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// This is the amount of stack a funclet needs to allocate.
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return alignTo(CSSize + MF.getFrameInfo().getMaxCallFrameSize(),
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getStackAlign());
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+}
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+
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+const ReturnProtectorLowering *AArch64FrameLowering::getReturnProtector() const {
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+ return &RPL;
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}
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namespace {
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