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AddressSanitizer.cpp
(139.95 KB)
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BoundsChecking.cpp
(9.32 KB)
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CFGMST.h
(10.51 KB)
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CGProfile.cpp
(5.08 KB)
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ControlHeightReduction.cpp
(79.97 KB)
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DataFlowSanitizer.cpp
(69.1 KB)
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GCOVProfiling.cpp
(46.3 KB)
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HWAddressSanitizer.cpp
(58.38 KB)
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IndirectCallPromotion.cpp
(16.27 KB)
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InstrOrderFile.cpp
(7.19 KB)
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InstrProfiling.cpp
(40.67 KB)
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Instrumentation.cpp
(5.17 KB)
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MaximumSpanningTree.h
(3.58 KB)
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MemorySanitizer.cpp
(196.17 KB)
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PGOInstrumentation.cpp
(68.08 KB)
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PGOMemOPSizeOpt.cpp
(18.04 KB)
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PoisonChecking.cpp
(12.92 KB)
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SanitizerCoverage.cpp
(41.36 KB)
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ThreadSanitizer.cpp
(31.63 KB)
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ValueProfileCollector.cpp
(2.67 KB)
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ValueProfileCollector.h
(3.25 KB)
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ValueProfilePlugins.inc
(3.3 KB)
Editing: Instrumentation.cpp
//===-- Instrumentation.cpp - TransformUtils Infrastructure ---------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // // This file defines the common initialization infrastructure for the // Instrumentation library. // //===----------------------------------------------------------------------===// #include "llvm/Transforms/Instrumentation.h" #include "llvm-c/Initialization.h" #include "llvm/ADT/Triple.h" #include "llvm/IR/IntrinsicInst.h" #include "llvm/IR/Module.h" #include "llvm/InitializePasses.h" #include "llvm/PassRegistry.h" using namespace llvm; /// Moves I before IP. Returns new insert point. static BasicBlock::iterator moveBeforeInsertPoint(BasicBlock::iterator I, BasicBlock::iterator IP) { // If I is IP, move the insert point down. if (I == IP) { ++IP; } else { // Otherwise, move I before IP and return IP. I->moveBefore(&*IP); } return IP; } /// Instrumentation passes often insert conditional checks into entry blocks. /// Call this function before splitting the entry block to move instructions /// that must remain in the entry block up before the split point. Static /// allocas and llvm.localescape calls, for example, must remain in the entry /// block. BasicBlock::iterator llvm::PrepareToSplitEntryBlock(BasicBlock &BB, BasicBlock::iterator IP) { assert(&BB.getParent()->getEntryBlock() == &BB); for (auto I = IP, E = BB.end(); I != E; ++I) { bool KeepInEntry = false; if (auto *AI = dyn_cast<AllocaInst>(I)) { if (AI->isStaticAlloca()) KeepInEntry = true; } else if (auto *II = dyn_cast<IntrinsicInst>(I)) { if (II->getIntrinsicID() == llvm::Intrinsic::localescape) KeepInEntry = true; } if (KeepInEntry) IP = moveBeforeInsertPoint(I, IP); } return IP; } // Create a constant for Str so that we can pass it to the run-time lib. GlobalVariable *llvm::createPrivateGlobalForString(Module &M, StringRef Str, bool AllowMerging, const char *NamePrefix) { Constant *StrConst = ConstantDataArray::getString(M.getContext(), Str); // We use private linkage for module-local strings. If they can be merged // with another one, we set the unnamed_addr attribute. GlobalVariable *GV = new GlobalVariable(M, StrConst->getType(), true, GlobalValue::PrivateLinkage, StrConst, NamePrefix); if (AllowMerging) GV->setUnnamedAddr(GlobalValue::UnnamedAddr::Global); GV->setAlignment(Align(1)); // Strings may not be merged w/o setting // alignment explicitly. return GV; } Comdat *llvm::GetOrCreateFunctionComdat(Function &F, Triple &T, const std::string &ModuleId) { if (auto Comdat = F.getComdat()) return Comdat; assert(F.hasName()); Module *M = F.getParent(); std::string Name = std::string(F.getName()); // Make a unique comdat name for internal linkage things on ELF. On COFF, the // name of the comdat group identifies the leader symbol of the comdat group. // The linkage of the leader symbol is considered during comdat resolution, // and internal symbols with the same name from different objects will not be // merged. if (T.isOSBinFormatELF() && F.hasLocalLinkage()) { if (ModuleId.empty()) return nullptr; Name += ModuleId; } // Make a new comdat for the function. Use the "no duplicates" selection kind // for non-weak symbols if the object file format supports it. Comdat *C = M->getOrInsertComdat(Name); if (T.isOSBinFormatCOFF() && !F.isWeakForLinker()) C->setSelectionKind(Comdat::NoDuplicates); F.setComdat(C); return C; } /// initializeInstrumentation - Initialize all passes in the TransformUtils /// library. void llvm::initializeInstrumentation(PassRegistry &Registry) { initializeAddressSanitizerLegacyPassPass(Registry); initializeModuleAddressSanitizerLegacyPassPass(Registry); initializeBoundsCheckingLegacyPassPass(Registry); initializeControlHeightReductionLegacyPassPass(Registry); initializeGCOVProfilerLegacyPassPass(Registry); initializePGOInstrumentationGenLegacyPassPass(Registry); initializePGOInstrumentationUseLegacyPassPass(Registry); initializePGOIndirectCallPromotionLegacyPassPass(Registry); initializePGOMemOPSizeOptLegacyPassPass(Registry); initializeCGProfileLegacyPassPass(Registry); initializeInstrOrderFileLegacyPassPass(Registry); initializeInstrProfilingLegacyPassPass(Registry); initializeMemorySanitizerLegacyPassPass(Registry); initializeHWAddressSanitizerLegacyPassPass(Registry); initializeThreadSanitizerLegacyPassPass(Registry); initializeModuleSanitizerCoverageLegacyPassPass(Registry); initializeDataFlowSanitizerPass(Registry); } /// LLVMInitializeInstrumentation - C binding for /// initializeInstrumentation. void LLVMInitializeInstrumentation(LLVMPassRegistryRef R) { initializeInstrumentation(*unwrap(R)); }
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