This file contains a machine function pass to insert a symbol after each call to _setjmp and store this in the MachineFunction's LongjmpTargets vector. More...

#include "llvm/CodeGen/CFGuardLongjmp.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunctionAnalysisManager.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachinePassManager.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/Analysis.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"

Macros
#define	DEBUG_TYPE "cfguard-longjmp"

Functions
	STATISTIC (CFGuardLongjmpTargets, "Number of Control Flow Guard longjmp targets")
	INITIALIZE_PASS (CFGuardLongjmpLegacy, "CFGuardLongjmp", "Insert symbols at valid longjmp targets for /guard:cf", false, false) FunctionPass *llvm
static bool	runCFGuardLongjmpOnMachineFunction (MachineFunction &MF)

Detailed Description

This file contains a machine function pass to insert a symbol after each call to _setjmp and store this in the MachineFunction's LongjmpTargets vector.

This will be used to emit the table of valid longjmp targets used by Control Flow Guard.

Definition in file CFGuardLongjmp.cpp.

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE "cfguard-longjmp"

Definition at line 34 of file CFGuardLongjmp.cpp.

Function Documentation

◆ INITIALIZE_PASS()

INITIALIZE_PASS	(	CFGuardLongjmpLegacy	,
		"CFGuardLongjmp"	,
		"Insert symbols at valid longjmp targets for /guard:cf"	,
		false	,
		false	)

Definition at line 65 of file CFGuardLongjmp.cpp.

References llvm::createCFGuardLongjmpLegacyPass().

◆ runCFGuardLongjmpOnMachineFunction()

bool runCFGuardLongjmpOnMachineFunction ( MachineFunction & MF )

static

Definition at line 72 of file CFGuardLongjmp.cpp.

References llvm::MachineFunction::addLongjmpTarget(), llvm::Function::callsFunctionThatReturnsTwice(), llvm::Disabled, llvm::dyn_cast(), llvm::SmallVectorTemplateCommon< T, typename >::empty(), F, llvm::MachineFunction::getContext(), llvm::Module::getControlFlowGuardMode(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getName(), llvm::MCContext::getOrCreateSymbol(), llvm::GlobalValue::getParent(), MBB, MI, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

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

◆ STATISTIC()

STATISTIC	(	CFGuardLongjmpTargets	,
		"Number of Control Flow Guard longjmp targets"	)

Macros