HWAddressSanitizer.cpp File Reference

This file is a part of HWAddressSanitizer, an address basic correctness checker based on tagged addressing. More...

#include "llvm/Transforms/Instrumentation/HWAddressSanitizer.h"
#include "InstrumentationOptions.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "llvm/Analysis/DomTreeUpdater.h"
#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/PostDominators.h"
#include "llvm/Analysis/ProfileSummaryInfo.h"
#include "llvm/Analysis/StackSafetyAnalysis.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/MDBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MD5.h"
#include "llvm/Support/RandomNumberGenerator.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Triple.h"
#include "llvm/Transforms/Instrumentation/AddressSanitizerCommon.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/Instrumentation.h"
#include "llvm/Transforms/Utils/Local.h"
#include "llvm/Transforms/Utils/MemoryTaggingSupport.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
#include "llvm/Transforms/Utils/PromoteMemToReg.h"
#include <optional>
#include <random>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "hwasan"

Functions
	STATISTIC (NumTotalFuncs, "Number of total funcs")
	STATISTIC (NumInstrumentedFuncs, "Number of instrumented funcs")
	STATISTIC (NumNoProfileSummaryFuncs, "Number of funcs without PS")
static unsigned	getPointerOperandIndex (Instruction *I)
static size_t	TypeSizeToSizeIndex (uint32_t TypeSize)
static void	emitRemark (const Function &F, OptimizationRemarkEmitter &ORE, bool Skip)

Variables
const char	kHwasanModuleCtorName [] = "hwasan.module_ctor"
const char	kHwasanNoteName [] = "hwasan.note"
const char	kHwasanInitName [] = "__hwasan_init"
const char	kHwasanPersonalityThunkName [] = "__hwasan_personality_thunk"
const char	kHwasanShadowMemoryDynamicAddress []
static const size_t	kNumberOfAccessSizes = 5
static const size_t	kDefaultShadowScale = 4
static const unsigned	kShadowBaseAlignment = 32
static cl::opt< uint64_t >	ClMappingOffset ("hwasan-mapping-offset", cl::desc("HWASan shadow mapping offset [EXPERIMENTAL]"), cl::Hidden)
static cl::opt< OffsetKind >	ClMappingOffsetDynamic ("hwasan-mapping-offset-dynamic", cl::desc("HWASan shadow mapping dynamic offset location"), cl::Hidden, cl::values(clEnumValN(OffsetKind::kGlobal, "global", "Use global"), clEnumValN(OffsetKind::kIfunc, "ifunc", "Use ifunc global"), clEnumValN(OffsetKind::kTls, "tls", "Use TLS")))

Detailed Description

This file is a part of HWAddressSanitizer, an address basic correctness checker based on tagged addressing.

Definition in file HWAddressSanitizer.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "hwasan"

Definition at line 73 of file HWAddressSanitizer.cpp.

Function Documentation

emitRemark()

void emitRemark ( const Function & F, OptimizationRemarkEmitter & ORE, bool Skip )

static

Definition at line 1412 of file HWAddressSanitizer.cpp.

References DEBUG_TYPE, llvm::OptimizationRemarkEmitter::emit(), and F.

getPointerOperandIndex()

unsigned getPointerOperandIndex ( Instruction * I )

static

Definition at line 788 of file HWAddressSanitizer.cpp.

References llvm::dyn_cast(), I, and llvm::report_fatal_error().

STATISTIC() [1/3]

STATISTIC	(	NumInstrumentedFuncs	,
		"Number of instrumented funcs"	)

STATISTIC() [2/3]

STATISTIC	(	NumNoProfileSummaryFuncs	,
		"Number of funcs without PS"	)

References llvm::Triple::x86_64.

STATISTIC() [3/3]

STATISTIC	(	NumTotalFuncs	,
		"Number of total funcs"	)

TypeSizeToSizeIndex()

size_t TypeSizeToSizeIndex ( uint32_t TypeSize )

static

Definition at line 801 of file HWAddressSanitizer.cpp.

References assert(), llvm::countr_zero(), and kNumberOfAccessSizes.

Variable Documentation

ClMappingOffset

cl::opt< uint64_t > ClMappingOffset("hwasan-mapping-offset", cl::desc("HWASan shadow mapping offset [EXPERIMENTAL]"), cl::Hidden) ( "hwasan-mapping-offset" , cl::desc("HWASan shadow mapping offset [EXPERIMENTAL]") , cl::Hidden  )

static

ClMappingOffsetDynamic

cl::opt< OffsetKind > ClMappingOffsetDynamic("hwasan-mapping-offset-dynamic", cl::desc("HWASan shadow mapping dynamic offset location"), cl::Hidden, cl::values(clEnumValN(OffsetKind::kGlobal, "global", "Use global"), clEnumValN(OffsetKind::kIfunc, "ifunc", "Use ifunc global"), clEnumValN(OffsetKind::kTls, "tls", "Use TLS"))) ( "hwasan-mapping-offset-dynamic" , cl::desc("HWASan shadow mapping dynamic offset location") , cl::Hidden , cl::values(clEnumValN(OffsetKind::kGlobal, "global", "Use global"), clEnumValN(OffsetKind::kIfunc, "ifunc", "Use ifunc global"), clEnumValN(OffsetKind::kTls, "tls", "Use TLS"))  )

static

kDefaultShadowScale

const size_t kDefaultShadowScale = 4

static

Definition at line 86 of file HWAddressSanitizer.cpp.

kHwasanInitName

const char kHwasanInitName[] = "__hwasan_init"

Definition at line 77 of file HWAddressSanitizer.cpp.

kHwasanModuleCtorName

const char kHwasanModuleCtorName[] = "hwasan.module_ctor"

Definition at line 75 of file HWAddressSanitizer.cpp.

kHwasanNoteName

const char kHwasanNoteName[] = "hwasan.note"

Definition at line 76 of file HWAddressSanitizer.cpp.

kHwasanPersonalityThunkName

const char kHwasanPersonalityThunkName[] = "__hwasan_personality_thunk"

Definition at line 78 of file HWAddressSanitizer.cpp.

kHwasanShadowMemoryDynamicAddress

const char kHwasanShadowMemoryDynamicAddress[]

Initial value:

=
    "__hwasan_shadow_memory_dynamic_address"

Definition at line 80 of file HWAddressSanitizer.cpp.

kNumberOfAccessSizes

const size_t kNumberOfAccessSizes = 5

static

Definition at line 84 of file HWAddressSanitizer.cpp.

kShadowBaseAlignment

const unsigned kShadowBaseAlignment = 32

static

Definition at line 88 of file HWAddressSanitizer.cpp.