Yi Kong | e5b9f24 | 2023-04-26 13:35:57 +0900 | [diff] [blame^] | 1 | //===--------- Definition of the SanitizerCoverage class --------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 6 | // See https://llvm.org/LICENSE.txt for license information. |
| 7 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 8 | // |
| 9 | //===----------------------------------------------------------------------===// |
| 10 | // |
| 11 | // SanitizerCoverage is a simple code coverage implementation. |
| 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | #ifndef LLVM_TRANSFORMS_INSTRUMENTATION_SANITIZERCOVERAGE_H |
| 16 | #define LLVM_TRANSFORMS_INSTRUMENTATION_SANITIZERCOVERAGE_H |
| 17 | |
| 18 | #include "llvm/IR/PassManager.h" |
| 19 | #include "llvm/Support/SpecialCaseList.h" |
| 20 | #include "llvm/Support/VirtualFileSystem.h" |
| 21 | #include "llvm/Transforms/Instrumentation.h" |
| 22 | |
| 23 | namespace llvm { |
| 24 | class Module; |
| 25 | |
| 26 | /// This is the ModuleSanitizerCoverage pass used in the new pass manager. The |
| 27 | /// pass instruments functions for coverage, adds initialization calls to the |
| 28 | /// module for trace PC guards and 8bit counters if they are requested, and |
| 29 | /// appends globals to llvm.compiler.used. |
| 30 | class SanitizerCoveragePass : public PassInfoMixin<SanitizerCoveragePass> { |
| 31 | public: |
| 32 | explicit SanitizerCoveragePass( |
| 33 | SanitizerCoverageOptions Options = SanitizerCoverageOptions(), |
| 34 | const std::vector<std::string> &AllowlistFiles = |
| 35 | std::vector<std::string>(), |
| 36 | const std::vector<std::string> &BlocklistFiles = |
| 37 | std::vector<std::string>()) |
| 38 | : Options(Options) { |
| 39 | if (AllowlistFiles.size() > 0) |
| 40 | Allowlist = SpecialCaseList::createOrDie(AllowlistFiles, |
| 41 | *vfs::getRealFileSystem()); |
| 42 | if (BlocklistFiles.size() > 0) |
| 43 | Blocklist = SpecialCaseList::createOrDie(BlocklistFiles, |
| 44 | *vfs::getRealFileSystem()); |
| 45 | } |
| 46 | PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM); |
| 47 | static bool isRequired() { return true; } |
| 48 | |
| 49 | private: |
| 50 | SanitizerCoverageOptions Options; |
| 51 | |
| 52 | std::unique_ptr<SpecialCaseList> Allowlist; |
| 53 | std::unique_ptr<SpecialCaseList> Blocklist; |
| 54 | }; |
| 55 | |
| 56 | } // namespace llvm |
| 57 | |
| 58 | #endif |