parent
83cec97479
commit
dde2ba0b60
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@ -153,21 +153,16 @@ bool StackProtector::InsertStackProtectors() {
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// StackGuard = load __stack_chk_guard
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// call void @llvm.stackprotect.create(StackGuard, StackGuardSlot)
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//
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PointerType *PtrTy = PointerType::getUnqual(
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Type::getInt8Ty(RI->getContext()));
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const PointerType *PtrTy = Type::getInt8PtrTy(RI->getContext());
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unsigned AddressSpace, Offset;
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if (TLI->getStackCookieLocation(AddressSpace, Offset)) {
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Constant *ASPtr = Constant::getNullValue(
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PointerType::get(Type::getInt8Ty(RI->getContext()), AddressSpace));
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APInt OffsetInt(32, Offset);
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Constant *OffsetVal = Constant::getIntegerValue(
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Type::getInt32Ty(RI->getContext()), OffsetInt);
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StackGuardVar = ConstantExpr::getPointerCast(
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ConstantExpr::getGetElementPtr(ASPtr, &OffsetVal, 1),
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PointerType::get(PtrTy, AddressSpace));
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Constant *OffsetVal =
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ConstantInt::get(Type::getInt32Ty(RI->getContext()), Offset);
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StackGuardVar = ConstantExpr::getIntToPtr(OffsetVal,
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PointerType::get(PtrTy, AddressSpace));
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} else {
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StackGuardVar = M->getOrInsertGlobal("__stack_chk_guard", PtrTy);
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StackGuardVar = M->getOrInsertGlobal("__stack_chk_guard", PtrTy);
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}
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BasicBlock &Entry = F->getEntryBlock();
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