61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
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//===--------- Definition of the HWAddressSanitizer class -------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the Hardware AddressSanitizer class which is a port of the
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// legacy HWAddressSanitizer pass to use the new PassManager infrastructure.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_INSTRUMENTATION_HWADDRESSSANITIZERPASS_H
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#define LLVM_TRANSFORMS_INSTRUMENTATION_HWADDRESSSANITIZERPASS_H
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#include "llvm/IR/Function.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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/// This is a public interface to the hardware address sanitizer pass for
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/// instrumenting code to check for various memory errors at runtime, similar to
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/// AddressSanitizer but based on partial hardware assistance.
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class HWAddressSanitizerPass : public PassInfoMixin<HWAddressSanitizerPass> {
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public:
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explicit HWAddressSanitizerPass(bool CompileKernel = false,
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bool Recover = false);
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
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static bool isRequired() { return true; }
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private:
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bool CompileKernel;
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bool Recover;
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};
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FunctionPass *createHWAddressSanitizerLegacyPassPass(bool CompileKernel = false,
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bool Recover = false);
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namespace HWASanAccessInfo {
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// Bit field positions for the accessinfo parameter to
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// llvm.hwasan.check.memaccess. Shared between the pass and the backend. Bits
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// 0-15 are also used by the runtime.
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enum {
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AccessSizeShift = 0, // 4 bits
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IsWriteShift = 4,
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RecoverShift = 5,
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MatchAllShift = 16, // 8 bits
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HasMatchAllShift = 24,
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CompileKernelShift = 25,
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};
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enum { RuntimeMask = 0xffff };
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} // namespace HWASanAccessInfo
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} // namespace llvm
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#endif
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