filter.cc File Reference

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <unistd.h>
#include "memoryprotection/filter.h"

Go to the source code of this file.

Data Structures
struct	AddressTable

Functions
int	bSearchAddress (unsigned long address, int head, int tail)
int	findAddress (unsigned long address)
int	insertAddress (unsigned long address)
void	outputAddresses (char *cmd)
void	generategdbscripts ()

Variables
int	position = -1
struct AddressTable	Detected

Function Documentation

int bSearchAddress	(	unsigned long	address,
		int	head,
		int	tail
	)

Definition at line 18 of file filter.cc.

References AddressTable::addresses, and Detected.

Referenced by findAddress().

{
  if (head >= tail) 
  {
    position = tail;
      
    return -1;
  }  
  int middle = (head + tail) / 2;
  if (Detected.addresses[middle] == address)
  {
    position = middle;
    return 0;
  }
  else if (Detected.addresses[middle] < address)
    return bSearchAddress(address, middle + 1, tail);
  else
    return bSearchAddress(address, 0, middle);
}

int findAddress

(

unsigned long

address

)

Definition at line 38 of file filter.cc.

References bSearchAddress(), AddressTable::counter, and Detected.

Referenced by insertAddress().

{
  if (position == -1) return -1;
  return bSearchAddress(address, 0, Detected.counter);
}

void generategdbscripts

(

)

Definition at line 97 of file filter.cc.

References AddressTable::addresses, AddressTable::counter, and Detected.

Referenced by openFilter().

{
  int i;

  pid_t myselfpid = getpid();
  char gdbcommands[1024];
  gdbcommands[0]  = 0;
  sprintf(gdbcommands, "./gdbcommands.%d", myselfpid);

  FILE *fp = fopen(gdbcommands, "w+");
  for (i = 0 ; i < Detected.counter ; i++)
  {
    fprintf(fp, "break *0x%lx\n", Detected.addresses[i]); 
    fprintf(fp, "commands\n");
    fprintf(fp, "bt 10\n");
    fprintf(fp, "cont\n");
    fprintf(fp, "end\n");
  }
  fprintf(fp, "cont\n");
  fclose(fp);
}

int insertAddress

(

unsigned long

address

)

Definition at line 44 of file filter.cc.

References AddressTable::addresses, assert, AddressTable::counter, Detected, findAddress(), malloc(), position, realloc(), and AddressTable::space.

Referenced by openFilter().

{
  if (position == -1)
  {
    Detected.space = 4096;
    assert(0 != (Detected.addresses = (unsigned long *) malloc(sizeof(unsigned long) * Detected.space)));
    Detected.counter = 1;
    position = 0;
    #ifdef ADDRESSTABLEDEBUG
    printf("Inserted position: %d, address: 0x%lx.\n", position, address);
    #endif
    Detected.addresses[position] = address;
    return 0;
  }
  else
  {
    if (-1 == findAddress(address))
    {
      #ifdef ADDRESSTABLEDEBUG
      printf("Inserted position: %d, address: 0x%lx.\n", position, address);
      #endif
      Detected.counter++;
      if (Detected.counter > Detected.space)
      {
        Detected.space = Detected.space + 4096;

        assert(0 != (Detected.addresses = (unsigned long *) realloc((char *)Detected.addresses, sizeof(unsigned long) * Detected.space)));
      }
      int i;
      for (i = Detected.counter - 1; i > position ; i--)
        Detected.addresses[i] = Detected.addresses[i - 1];
      Detected.addresses[i] = address;

      return 0;
    }
    else
      return -1;
  }
}

void outputAddresses

(

char *

cmd

)

Definition at line 84 of file filter.cc.

References AddressTable::addresses, AddressTable::counter, and Detected.

Referenced by openFilter().

{
  int i;
  char convertcmd[1024];
  printf("Lines that produce segmentation faults:\n");
  for (i = 0 ; i < Detected.counter ; i++)
  {
    sprintf(convertcmd, "addr2line -e %s 0x%lx", cmd, Detected.addresses[i]);
    system(convertcmd);
    printf("%s address[%d]= 0x%lx\n", cmd, i, Detected.addresses[i]); 
  }
}

Variable Documentation

struct AddressTable Detected

Referenced by bSearchAddress(), findAddress(), generategdbscripts(), insertAddress(), and outputAddresses().

int position = -1

Definition at line 7 of file filter.cc.

Referenced by G4ArrayOps::Add(), G4eLowEnergyLoss::AlongStepDoIt(), G4GDMLReadSolids::BooleanRead(), G4SafetyHelper::CheckNextStep(), G4SafetyHelper::ComputeSafety(), G4MultiNavigator::ComputeSafety(), G4PathFinder::ComputeSafety(), RE02NestedPhantomParameterisation::ComputeTransformation(), G02DetectorConstruction::ConstructAssembly(), G4ArrayOps::Copy(), G4LowEnergyIonisation::DeexciteAtom(), G4ArrayOps::Divide(), Par01PiModel::DoIt(), G4DNAIndirectHit::G4DNAIndirectHit(), G4PAIPhotonModel::GetAlongStepTransfer(), G4PAIxSection::GetCerenkovEnergyTransfer(), XrayFluoDetectorConstruction::GetDetectorPosition(), G4PAIxSection::GetEnergyTransfer(), G4PAIxSection::GetMMEnergyTransfer(), G4PAIxSection::GetPlasmonEnergyTransfer(), G4PAIPhotonModel::GetPostStepTransfer(), G4VXTRenergyLoss::GetRandomAngle(), G4SynchrotronRadiationInMat::GetRandomEnergySR(), G4PAIxSection::GetResonanceEnergyTransfer(), G4PAIxSection::GetRutherfordEnergyTransfer(), G4PAIySection::GetStepCerenkovLoss(), G4PAIySection::GetStepEnergyLoss(), G4PAIySection::GetStepPlasmonLoss(), G4VXTRenergyLoss::GetXTRrandomEnergy(), HepMCG4Interface::HepMC2G4(), insertAddress(), G4PathFinder::Locate(), G4MultiNavigator::LocateGlobalPointWithinVolume(), G4ArrayOps::Multiply(), G4GDMLReadParamvol::ParametersRead(), G4GDMLReadStructure::PhysvolRead(), G4GDMLReadDefine::PositionRead(), G4PathFinder::PrepareNewTrack(), CexmcTrackPoints::ProcessHits(), G4FastStep::ProposePrimaryTrackFinalPosition(), G4GDMLReadSolids::ReflectedSolidRead(), G4PathFinder::ReLocate(), G4GDMLReadStructure::ReplicaRead(), CexmcPhysicsList< BasePhysics, StudiedPhysics, ProductionModel >::ResampleTrackLengthInTarget(), G4PAIPhotData::SampleAlongStepPhotonTransfer(), G4PAIPhotData::SampleAlongStepPlasmonTransfer(), G4PAIPhotData::SampleAlongStepTransfer(), G4PAIModelData::SampleAlongStepTransfer(), G4PAIPhotData::SamplePostStepPhotonTransfer(), G4PAIPhotData::SamplePostStepPlasmonTransfer(), G4PAIModelData::SamplePostStepTransfer(), G4PAIPhotData::SamplePostStepTransfer(), G4NuclNuclDiffuseElastic::SampleTableThetaCMS(), G4DiffuseElastic::SampleTableThetaCMS(), G4ArrayOps::Set(), CexmcParticleGun::SetOrigPosition(), G4INCL::Particle::setPosition(), G4INCL::StandardPropagationModel::shootComposite(), G4INCL::StandardPropagationModel::shootParticle(), and G4ArrayOps::Subtract().