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

#include "llvm/Transforms/Instrumentation/HWAddressSanitizer.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/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>

Macros
#define	DEBUG_TYPE "hwasan"

Enumerations
enum	RecordStackHistoryMode { none , instr , libcall }

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< std::string >	ClMemoryAccessCallbackPrefix ("hwasan-memory-access-callback-prefix", cl::desc("Prefix for memory access callbacks"), cl::Hidden, cl::init("__hwasan_"))
static cl::opt< bool >	ClKasanMemIntrinCallbackPrefix ("hwasan-kernel-mem-intrinsic-prefix", cl::desc("Use prefix for memory intrinsics in KASAN mode"), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClInstrumentWithCalls ("hwasan-instrument-with-calls", cl::desc("instrument reads and writes with callbacks"), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClInstrumentReads ("hwasan-instrument-reads", cl::desc("instrument read instructions"), cl::Hidden, cl::init(true))
static cl::opt< bool >	ClInstrumentWrites ("hwasan-instrument-writes", cl::desc("instrument write instructions"), cl::Hidden, cl::init(true))
static cl::opt< bool >	ClInstrumentAtomics ("hwasan-instrument-atomics", cl::desc("instrument atomic instructions (rmw, cmpxchg)"), cl::Hidden, cl::init(true))
static cl::opt< bool >	ClInstrumentByval ("hwasan-instrument-byval", cl::desc("instrument byval arguments"), cl::Hidden, cl::init(true))
static cl::opt< bool >	ClRecover ("hwasan-recover", cl::desc("Enable recovery mode (continue-after-error)."), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClInstrumentStack ("hwasan-instrument-stack", cl::desc("instrument stack (allocas)"), cl::Hidden, cl::init(true))
static cl::opt< bool >	ClUseStackSafety ("hwasan-use-stack-safety", cl::Hidden, cl::init(true), cl::Hidden, cl::desc("Use Stack Safety analysis results"), cl::Optional)
static cl::opt< size_t >	ClMaxLifetimes ("hwasan-max-lifetimes-for-alloca", cl::Hidden, cl::init(3), cl::ReallyHidden, cl::desc("How many lifetime ends to handle for a single alloca."), cl::Optional)
static cl::opt< bool >	ClUseAfterScope ("hwasan-use-after-scope", cl::desc("detect use after scope within function"), cl::Hidden, cl::init(true))
static cl::opt< bool >	ClGenerateTagsWithCalls ("hwasan-generate-tags-with-calls", cl::desc("generate new tags with runtime library calls"), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClGlobals ("hwasan-globals", cl::desc("Instrument globals"), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClAllGlobals ("hwasan-all-globals", cl::desc("Instrument globals, even those within user-defined sections. Warning: " "This may break existing code which walks globals via linker-generated " "symbols, expects certain globals to be contiguous with each other, or " "makes other assumptions which are invalidated by HWASan " "instrumentation."), cl::Hidden, cl::init(false))
static cl::opt< int >	ClMatchAllTag ("hwasan-match-all-tag", cl::desc("don't report bad accesses via pointers with this tag"), cl::Hidden, cl::init(-1))
static cl::opt< bool >	ClEnableKhwasan ("hwasan-kernel", cl::desc("Enable KernelHWAddressSanitizer instrumentation"), cl::Hidden, cl::init(false))
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")))
static cl::opt< bool >	ClFrameRecords ("hwasan-with-frame-record", cl::desc("Use ring buffer for stack allocations"), cl::Hidden)
static cl::opt< int >	ClHotPercentileCutoff ("hwasan-percentile-cutoff-hot", cl::desc("Hot percentile cutoff."))
static cl::opt< float >	ClRandomKeepRate ("hwasan-random-rate", cl::desc("Probability value in the range [0.0, 1.0] " "to keep instrumentation of a function. " "Note: instrumentation can be skipped randomly " "OR because of the hot percentile cutoff, if " "both are supplied."))
static cl::opt< bool >	ClStaticLinking ("hwasan-static-linking", cl::desc("Don't use .note.hwasan.globals section to instrument globals " "from loadable libraries. " "Note: in static binaries, the global variables section can be " "accessed directly via linker-provided " "__start_hwasan_globals and __stop_hwasan_globals symbols"), cl::Hidden, cl::init(false))
static cl::opt< RecordStackHistoryMode >	ClRecordStackHistory ("hwasan-record-stack-history", cl::desc("Record stack frames with tagged allocations in a thread-local " "ring buffer"), cl::values(clEnumVal(none, "Do not record stack ring history"), clEnumVal(instr, "Insert instructions into the prologue for " "storing into the stack ring buffer directly"), clEnumVal(libcall, "Add a call to __hwasan_add_frame_record for " "storing into the stack ring buffer")), cl::Hidden, cl::init(instr))
static cl::opt< bool >	ClInstrumentMemIntrinsics ("hwasan-instrument-mem-intrinsics", cl::desc("instrument memory intrinsics"), cl::Hidden, cl::init(true))
static cl::opt< bool >	ClInstrumentLandingPads ("hwasan-instrument-landing-pads", cl::desc("instrument landing pads"), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClUseShortGranules ("hwasan-use-short-granules", cl::desc("use short granules in allocas and outlined checks"), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClInstrumentPersonalityFunctions ("hwasan-instrument-personality-functions", cl::desc("instrument personality functions"), cl::Hidden)
static cl::opt< bool >	ClInlineAllChecks ("hwasan-inline-all-checks", cl::desc("inline all checks"), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClInlineFastPathChecks ("hwasan-inline-fast-path-checks", cl::desc("inline all checks"), cl::Hidden, cl::init(false))
static cl::opt< bool >	ClUsePageAliases ("hwasan-experimental-use-page-aliases", cl::desc("Use page aliasing in HWASan"), cl::Hidden, cl::init(false))

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 71 of file HWAddressSanitizer.cpp.

Enumeration Type Documentation

◆ RecordStackHistoryMode

enum RecordStackHistoryMode

Enumerator
none
instr
libcall

Definition at line 230 of file HWAddressSanitizer.cpp.

Function Documentation

◆ emitRemark()

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

static

Definition at line 1539 of file HWAddressSanitizer.cpp.

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

◆ getPointerOperandIndex()

unsigned getPointerOperandIndex ( Instruction * I )

static

Definition at line 930 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"	)

◆ STATISTIC() [3/3]

STATISTIC	(	NumTotalFuncs	,
		"Number of total funcs"	)

◆ TypeSizeToSizeIndex()

size_t TypeSizeToSizeIndex ( uint32_t TypeSize )

static

Definition at line 943 of file HWAddressSanitizer.cpp.

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

Variable Documentation

◆ ClAllGlobals

cl::opt< bool > ClAllGlobals("hwasan-all-globals", cl::desc( "Instrument globals, even those within user-defined sections. Warning: " "This may break existing code which walks globals via linker-generated " "symbols, expects certain globals to be contiguous with each other, or " "makes other assumptions which are invalidated by HWASan " "instrumentation."), cl::Hidden, cl::init(false))	(	"hwasan-all-globals"	,
		cl::desc( "Instrument globals, even those within user-defined sections. Warning: " "This may break existing code which walks globals via linker-generated " "symbols, expects certain globals to be contiguous with each other, or " "makes other assumptions which are invalidated by HWASan " "instrumentation.")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClEnableKhwasan

cl::opt< bool > ClEnableKhwasan("hwasan-kernel", cl::desc("Enable KernelHWAddressSanitizer instrumentation"), cl::Hidden, cl::init(false))	(	"hwasan-kernel"	,
		cl::desc("Enable KernelHWAddressSanitizer instrumentation")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClFrameRecords

cl::opt< bool > ClFrameRecords("hwasan-with-frame-record", cl::desc("Use ring buffer for stack allocations"), cl::Hidden)	(	"hwasan-with-frame-record"	,
		cl::desc("Use ring buffer for stack allocations")	,
		cl::Hidden	)

static

◆ ClGenerateTagsWithCalls

cl::opt< bool > ClGenerateTagsWithCalls("hwasan-generate-tags-with-calls", cl::desc("generate new tags with runtime library calls"), cl::Hidden, cl::init(false))	(	"hwasan-generate-tags-with-calls"	,
		cl::desc("generate new tags with runtime library calls")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClGlobals

cl::opt< bool > ClGlobals("hwasan-globals", cl::desc("Instrument globals"), cl::Hidden, cl::init(false))	(	"hwasan-globals"	,
		cl::desc("Instrument globals")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClHotPercentileCutoff

cl::opt< int > ClHotPercentileCutoff("hwasan-percentile-cutoff-hot", cl::desc("Hot percentile cutoff."))	(	"hwasan-percentile-cutoff-hot"	,
		cl::desc("Hot percentile cutoff.")	)

static

◆ ClInlineAllChecks

cl::opt< bool > ClInlineAllChecks("hwasan-inline-all-checks", cl::desc("inline all checks"), cl::Hidden, cl::init(false))	(	"hwasan-inline-all-checks"	,
		cl::desc("inline all checks")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClInlineFastPathChecks

cl::opt< bool > ClInlineFastPathChecks("hwasan-inline-fast-path-checks", cl::desc("inline all checks"), cl::Hidden, cl::init(false))	(	"hwasan-inline-fast-path-checks"	,
		cl::desc("inline all checks")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClInstrumentAtomics

cl::opt< bool > ClInstrumentAtomics("hwasan-instrument-atomics", cl::desc("instrument atomic instructions (rmw, cmpxchg)"), cl::Hidden, cl::init(true))	(	"hwasan-instrument-atomics"	,
		cl::desc("instrument atomic instructions (rmw, cmpxchg)")	,
		cl::Hidden	,
		cl::init(true)	)

static

◆ ClInstrumentByval

cl::opt< bool > ClInstrumentByval("hwasan-instrument-byval", cl::desc("instrument byval arguments"), cl::Hidden, cl::init(true))	(	"hwasan-instrument-byval"	,
		cl::desc("instrument byval arguments")	,
		cl::Hidden	,
		cl::init(true)	)

static

◆ ClInstrumentLandingPads

cl::opt< bool > ClInstrumentLandingPads("hwasan-instrument-landing-pads", cl::desc("instrument landing pads"), cl::Hidden, cl::init(false))	(	"hwasan-instrument-landing-pads"	,
		cl::desc("instrument landing pads")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClInstrumentMemIntrinsics

cl::opt< bool > ClInstrumentMemIntrinsics("hwasan-instrument-mem-intrinsics", cl::desc("instrument memory intrinsics"), cl::Hidden, cl::init(true))	(	"hwasan-instrument-mem-intrinsics"	,
		cl::desc("instrument memory intrinsics")	,
		cl::Hidden	,
		cl::init(true)	)

static

◆ ClInstrumentPersonalityFunctions

cl::opt< bool > ClInstrumentPersonalityFunctions("hwasan-instrument-personality-functions", cl::desc("instrument personality functions"), cl::Hidden)	(	"hwasan-instrument-personality-functions"	,
		cl::desc("instrument personality functions")	,
		cl::Hidden	)

static

◆ ClInstrumentReads

cl::opt< bool > ClInstrumentReads("hwasan-instrument-reads", cl::desc("instrument read instructions"), cl::Hidden, cl::init(true))	(	"hwasan-instrument-reads"	,
		cl::desc("instrument read instructions")	,
		cl::Hidden	,
		cl::init(true)	)

static

◆ ClInstrumentStack

cl::opt< bool > ClInstrumentStack("hwasan-instrument-stack", cl::desc("instrument stack (allocas)"), cl::Hidden, cl::init(true))	(	"hwasan-instrument-stack"	,
		cl::desc("instrument stack (allocas)")	,
		cl::Hidden	,
		cl::init(true)	)

static

◆ ClInstrumentWithCalls

cl::opt< bool > ClInstrumentWithCalls("hwasan-instrument-with-calls", cl::desc("instrument reads and writes with callbacks"), cl::Hidden, cl::init(false))	(	"hwasan-instrument-with-calls"	,
		cl::desc("instrument reads and writes with callbacks")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClInstrumentWrites

cl::opt< bool > ClInstrumentWrites("hwasan-instrument-writes", cl::desc("instrument write instructions"), cl::Hidden, cl::init(true))	(	"hwasan-instrument-writes"	,
		cl::desc("instrument write instructions")	,
		cl::Hidden	,
		cl::init(true)	)

static

◆ ClKasanMemIntrinCallbackPrefix

cl::opt< bool > ClKasanMemIntrinCallbackPrefix("hwasan-kernel-mem-intrinsic-prefix", cl::desc("Use prefix for memory intrinsics in KASAN mode"), cl::Hidden, cl::init(false))	(	"hwasan-kernel-mem-intrinsic-prefix"	,
		cl::desc("Use prefix for memory intrinsics in KASAN mode")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ 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

◆ ClMatchAllTag

cl::opt< int > ClMatchAllTag("hwasan-match-all-tag", cl::desc("don't report bad accesses via pointers with this tag"), cl::Hidden, cl::init(-1))	(	"hwasan-match-all-tag"	,
		cl::desc("don't report bad accesses via pointers with this tag")	,
		cl::Hidden	,
		cl::init(-1)	)

static

◆ ClMaxLifetimes

cl::opt< size_t > ClMaxLifetimes("hwasan-max-lifetimes-for-alloca", cl::Hidden, cl::init(3), cl::ReallyHidden, cl::desc("How many lifetime ends to handle for a single alloca."), cl::Optional)	(	"hwasan-max-lifetimes-for-alloca"	,
		cl::Hidden	,
		cl::init(3)	,
		cl::ReallyHidden	,
		cl::desc("How many lifetime ends to handle for a single alloca.")	,
		cl::Optional	)

static

◆ ClMemoryAccessCallbackPrefix

cl::opt< std::string > ClMemoryAccessCallbackPrefix("hwasan-memory-access-callback-prefix", cl::desc("Prefix for memory access callbacks"), cl::Hidden, cl::init("__hwasan_"))	(	"hwasan-memory-access-callback-prefix"	,
		cl::desc("Prefix for memory access callbacks")	,
		cl::Hidden	,
		cl::init("__hwasan_")	)

static

◆ ClRandomKeepRate

cl::opt< float > ClRandomKeepRate("hwasan-random-rate", cl::desc("Probability value in the range [0.0, 1.0] " "to keep instrumentation of a function. " "Note: instrumentation can be skipped randomly " "OR because of the hot percentile cutoff, if " "both are supplied."))	(	"hwasan-random-rate"	,
		cl::desc("Probability value in the range [0.0, 1.0] " "to keep instrumentation of a function. " "Note: instrumentation can be skipped randomly " "OR because of the hot percentile cutoff, if " "both are supplied.")	)

static

◆ ClRecordStackHistory

cl::opt< RecordStackHistoryMode > ClRecordStackHistory("hwasan-record-stack-history", cl::desc("Record stack frames with tagged allocations in a thread-local " "ring buffer"), cl::values(clEnumVal(none, "Do not record stack ring history"), clEnumVal(instr, "Insert instructions into the prologue for " "storing into the stack ring buffer directly"), clEnumVal(libcall, "Add a call to __hwasan_add_frame_record for " "storing into the stack ring buffer")), cl::Hidden, cl::init(instr))	(	"hwasan-record-stack-history"	,
		cl::desc("Record stack frames with tagged allocations in a thread-local " "ring buffer")	,
		cl::values(clEnumVal(none, "Do not record stack ring history"), clEnumVal(instr, "Insert instructions into the prologue for " "storing into the stack ring buffer directly"), clEnumVal(libcall, "Add a call to __hwasan_add_frame_record for " "storing into the stack ring buffer"))	,
		cl::Hidden	,
		cl::init(instr)	)

static

◆ ClRecover

cl::opt< bool > ClRecover("hwasan-recover", cl::desc("Enable recovery mode (continue-after-error)."), cl::Hidden, cl::init(false))	(	"hwasan-recover"	,
		cl::desc("Enable recovery mode (continue-after-error).")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClStaticLinking

cl::opt< bool > ClStaticLinking("hwasan-static-linking", cl::desc("Don't use .note.hwasan.globals section to instrument globals " "from loadable libraries. " "Note: in static binaries, the global variables section can be " "accessed directly via linker-provided " "__start_hwasan_globals and __stop_hwasan_globals symbols"), cl::Hidden, cl::init(false))	(	"hwasan-static-linking"	,
		cl::desc("Don't use .note.hwasan.globals section to instrument globals " "from loadable libraries. " "Note: in static binaries, the global variables section can be " "accessed directly via linker-provided " "__start_hwasan_globals and __stop_hwasan_globals symbols")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClUseAfterScope

cl::opt< bool > ClUseAfterScope("hwasan-use-after-scope", cl::desc("detect use after scope within function"), cl::Hidden, cl::init(true))	(	"hwasan-use-after-scope"	,
		cl::desc("detect use after scope within function")	,
		cl::Hidden	,
		cl::init(true)	)

static

◆ ClUsePageAliases

cl::opt< bool > ClUsePageAliases("hwasan-experimental-use-page-aliases", cl::desc("Use page aliasing in HWASan"), cl::Hidden, cl::init(false))	(	"hwasan-experimental-use-page-aliases"	,
		cl::desc("Use page aliasing in HWASan")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClUseShortGranules

cl::opt< bool > ClUseShortGranules("hwasan-use-short-granules", cl::desc("use short granules in allocas and outlined checks"), cl::Hidden, cl::init(false))	(	"hwasan-use-short-granules"	,
		cl::desc("use short granules in allocas and outlined checks")	,
		cl::Hidden	,
		cl::init(false)	)

static

◆ ClUseStackSafety

cl::opt< bool > ClUseStackSafety("hwasan-use-stack-safety", cl::Hidden, cl::init(true), cl::Hidden, cl::desc("Use Stack Safety analysis results"), cl::Optional)	(	"hwasan-use-stack-safety"	,
		cl::Hidden	,
		cl::init(true)	,
		cl::Hidden	,
		cl::desc("Use Stack Safety analysis results")	,
		cl::Optional	)

static

◆ kDefaultShadowScale

const size_t kDefaultShadowScale = 4

static

Definition at line 84 of file HWAddressSanitizer.cpp.

◆ kHwasanInitName

const char kHwasanInitName[] = "__hwasan_init"

Definition at line 75 of file HWAddressSanitizer.cpp.

◆ kHwasanModuleCtorName

const char kHwasanModuleCtorName[] = "hwasan.module_ctor"

Definition at line 73 of file HWAddressSanitizer.cpp.

◆ kHwasanNoteName

const char kHwasanNoteName[] = "hwasan.note"

Definition at line 74 of file HWAddressSanitizer.cpp.

◆ kHwasanPersonalityThunkName

const char kHwasanPersonalityThunkName[] = "__hwasan_personality_thunk"

Definition at line 76 of file HWAddressSanitizer.cpp.

◆ kHwasanShadowMemoryDynamicAddress

const char kHwasanShadowMemoryDynamicAddress[]

Initial value:

=

"__hwasan_shadow_memory_dynamic_address"

Definition at line 78 of file HWAddressSanitizer.cpp.

◆ kNumberOfAccessSizes

const size_t kNumberOfAccessSizes = 5

static

Definition at line 82 of file HWAddressSanitizer.cpp.

◆ kShadowBaseAlignment

const unsigned kShadowBaseAlignment = 32

static

Definition at line 86 of file HWAddressSanitizer.cpp.

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ DEBUG_TYPE

Enumeration Type Documentation

◆ RecordStackHistoryMode

Function Documentation

◆ emitRemark()

◆ getPointerOperandIndex()

◆ STATISTIC() [1/3]

◆ STATISTIC() [2/3]

◆ STATISTIC() [3/3]

◆ TypeSizeToSizeIndex()

Variable Documentation

◆ ClAllGlobals

◆ ClEnableKhwasan

◆ ClFrameRecords

◆ ClGenerateTagsWithCalls

◆ ClGlobals

◆ ClHotPercentileCutoff

◆ ClInlineAllChecks

◆ ClInlineFastPathChecks

◆ ClInstrumentAtomics

◆ ClInstrumentByval

◆ ClInstrumentLandingPads

◆ ClInstrumentMemIntrinsics

◆ ClInstrumentPersonalityFunctions

◆ ClInstrumentReads

◆ ClInstrumentStack

◆ ClInstrumentWithCalls

◆ ClInstrumentWrites

◆ ClKasanMemIntrinCallbackPrefix

◆ ClMappingOffset

◆ ClMappingOffsetDynamic

◆ ClMatchAllTag

◆ ClMaxLifetimes

◆ ClMemoryAccessCallbackPrefix

◆ ClRandomKeepRate

◆ ClRecordStackHistory

◆ ClRecover

◆ ClStaticLinking

◆ ClUseAfterScope

◆ ClUsePageAliases

◆ ClUseShortGranules

◆ ClUseStackSafety

◆ kDefaultShadowScale

◆ kHwasanInitName

◆ kHwasanModuleCtorName

◆ kHwasanNoteName

◆ kHwasanPersonalityThunkName

◆ kHwasanShadowMemoryDynamicAddress

◆ kNumberOfAccessSizes

◆ kShadowBaseAlignment