AArch64SLSHardening.cpp File Reference

#include "AArch64InstrInfo.h"
#include "AArch64Subtarget.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/CodeGen/IndirectThunks.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/RegisterScavenging.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/Pass.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Target/TargetMachine.h"
#include <cassert>
#include <climits>
#include <tuple>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "aarch64-sls-hardening"
#define	AARCH64_SLS_HARDENING_NAME   "AArch64 sls hardening pass"

Functions
static const ThunkKind *	getThunkKind (unsigned OriginalOpcode)
static bool	isBLR (const MachineInstr &MI)
static void	insertSpeculationBarrier (const AArch64Subtarget *ST, MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, DebugLoc DL, bool AlwaysUseISBDSB=false)
static SmallString< 32 >	createThunkName (const ThunkKind &Kind, Register Xn, Register Xm)
static std::tuple< const ThunkKind &, Register, Register >	parseThunkName (StringRef ThunkName)
	INITIALIZE_PASS (AArch64SLSHardening, "aarch64-sls-hardening", AARCH64_SLS_HARDENING_NAME, false, false) FunctionPass *llvm

Variables
static constexpr StringRef	CommonNamePrefix = "__llvm_slsblr_thunk_"

Macro Definition Documentation

AARCH64_SLS_HARDENING_NAME

#define AARCH64_SLS_HARDENING_NAME   "AArch64 sls hardening pass"

Definition at line 37 of file AArch64SLSHardening.cpp.

DEBUG_TYPE

#define DEBUG_TYPE   "aarch64-sls-hardening"

Definition at line 35 of file AArch64SLSHardening.cpp.

Function Documentation

createThunkName()

static SmallString< 32 > createThunkName ( const ThunkKind &  Kind, Register  Xn, Register  Xm  )

static

Definition at line 279 of file AArch64SLSHardening.cpp.

References CommonNamePrefix, llvm::formatv(), and N.

getThunkKind()

static const ThunkKind * getThunkKind ( unsigned  OriginalOpcode )

static

Definition at line 178 of file AArch64SLSHardening.cpp.

Referenced by isBLR().

INITIALIZE_PASS()

INITIALIZE_PASS	(	AArch64SLSHardening	,
		"aarch64-sls-hardening"	,
		AARCH64_SLS_HARDENING_NAME	,
		false	,
		false
	)

Definition at line 522 of file AArch64SLSHardening.cpp.

insertSpeculationBarrier()

static void insertSpeculationBarrier ( const AArch64Subtarget *  ST, MachineBasicBlock &  MBB, MachineBasicBlock::iterator  MBBI, DebugLoc  DL, bool  AlwaysUseISBDSB = false  )

static

Definition at line 221 of file AArch64SLSHardening.cpp.

References AlwaysUseISBDSB, assert(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), DL, llvm::MachineBasicBlock::end(), MBB, MBBI, and TII.

isBLR()

static bool isBLR ( const MachineInstr &  MI )

static

Definition at line 195 of file AArch64SLSHardening.cpp.

References getThunkKind(), and MI.

parseThunkName()

static std::tuple< const ThunkKind &, Register, Register > parseThunkName ( StringRef  ThunkName )

static

Definition at line 290 of file AArch64SLSHardening.cpp.

References assert(), CommonNamePrefix, llvm::StringSwitch< T, R >::Default(), llvm::StringRef::drop_front(), Fail, N, Name, llvm::StringRef::size(), llvm::StringRef::split(), llvm::StringRef::starts_with(), and llvm::StringSwitch< T, R >::StartsWith().

Variable Documentation

CommonNamePrefix

constexpr StringRef CommonNamePrefix = "__llvm_slsblr_thunk_"

staticconstexpr

Definition at line 45 of file AArch64SLSHardening.cpp.

Referenced by createThunkName(), and parseThunkName().