6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
//===--------- Definition of the HWAddressSanitizer class -------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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_HWADDRESSSANITIZER_H
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#define LLVM_TRANSFORMS_INSTRUMENTATION_HWADDRESSSANITIZER_H
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#include "llvm/ADT/STLFunctionalExtras.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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class Module;
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class StringRef;
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class raw_ostream;
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struct HWAddressSanitizerOptions {
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HWAddressSanitizerOptions()
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: HWAddressSanitizerOptions(false, false, false){};
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HWAddressSanitizerOptions(bool CompileKernel, bool Recover,
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bool DisableOptimization)
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: CompileKernel(CompileKernel), Recover(Recover),
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DisableOptimization(DisableOptimization){};
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bool CompileKernel;
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bool Recover;
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bool DisableOptimization;
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};
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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(HWAddressSanitizerOptions Options)
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: Options(Options){};
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
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static bool isRequired() { return true; }
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void printPipeline(raw_ostream &OS,
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function_ref<StringRef(StringRef)> MapClassName2PassName);
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private:
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HWAddressSanitizerOptions Options;
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};
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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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