X86LoadValueInjectionRetHardening.cpp File Reference

#include "X86.h"
#include "X86InstrBuilder.h"
#include "X86Subtarget.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/IR/Function.h"
#include "llvm/Support/Debug.h"

Go to the source code of this file.

Macros
#define	PASS_KEY   "x86-lvi-ret"
#define	DEBUG_TYPE   PASS_KEY

Functions
	STATISTIC (NumFences, "Number of LFENCEs inserted for LVI mitigation")
	STATISTIC (NumFunctionsConsidered, "Number of functions analyzed")
	STATISTIC (NumFunctionsMitigated, "Number of functions for which mitigations " "were deployed")
static bool	runX86LoadValueInjectionRetHardening (MachineFunction &MF)
	INITIALIZE_PASS (X86LoadValueInjectionRetHardeningLegacy, PASS_KEY, "X86 LVI ret hardener", false, false) FunctionPass *llvm

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   PASS_KEY

Definition at line 34 of file X86LoadValueInjectionRetHardening.cpp.

PASS_KEY

#define PASS_KEY   "x86-lvi-ret"

Definition at line 33 of file X86LoadValueInjectionRetHardening.cpp.

Function Documentation

INITIALIZE_PASS()

INITIALIZE_PASS	(	X86LoadValueInjectionRetHardeningLegacy	,
		PASS_KEY	,
		"X86 LVI ret hardener"	,
		false	,
		false	)

Definition at line 128 of file X86LoadValueInjectionRetHardening.cpp.

References llvm::createX86LoadValueInjectionRetHardeningLegacyPass(), and PASS_KEY.

runX86LoadValueInjectionRetHardening()

bool runX86LoadValueInjectionRetHardening ( MachineFunction & MF )

static

Definition at line 59 of file X86LoadValueInjectionRetHardening.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::MachineInstr::addRegisterDead(), llvm::addRegOffset(), llvm::BuildMI(), llvm::dbgs(), llvm::dwarf_linker::DebugLoc, llvm::RegState::Define, llvm::MachineInstr::FrameDestroy, llvm::X86Subtarget::getInstrInfo(), llvm::MachineFunction::getName(), llvm::X86Subtarget::getRegisterInfo(), llvm::MachineFunction::getSubtarget(), LLVM_DEBUG, MBB, MBBI, Modified, llvm::MachineInstrBuilder::setMIFlag(), TII, and TRI.

Referenced by llvm::X86LoadValueInjectionRetHardeningPass::run().

STATISTIC() [1/3]

STATISTIC	(	NumFences	,
		"Number of LFENCEs inserted for LVI mitigation"	)

STATISTIC() [2/3]

STATISTIC	(	NumFunctionsConsidered	,
		"Number of functions analyzed"	)

STATISTIC() [3/3]

STATISTIC	(	NumFunctionsMitigated	,
		"Number of functions for which mitigations " "were deployed"	)