com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure

Class LoopKillAndroidModel

java.lang.Object

com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure.AbstractAndroidModel

com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure.SingleStartAndroidModel

com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure.LoopAndroidModel

com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure.LoopKillAndroidModel

public class LoopKillAndroidModel
extends LoopAndroidModel

Builds an Android Model incorporating three loops. This variant adds a nother loop to the LoopAndroidModel. This additional loop emulates the start of an Application with a savedIstanceState: When memory on a device gets short Apps may be removed from memory. When they are needed again they get started using that savedIstanceState.

Author:

Tobias Blaschke <code@tobiasblaschke.de>

See Also:

LoopAndroidModel

Field Summary

Fields inherited from class com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure.AbstractAndroidModel

body, entryPoints, insts, paramManager

Constructor Summary

Constructors

Constructor and Description
LoopKillAndroidModel(com.ibm.wala.ipa.summaries.VolatileMethodSummary body, com.ibm.wala.util.ssa.TypeSafeInstructionFactory insts, com.ibm.wala.util.ssa.SSAValueManager paramManager, Iterable<? extends com.ibm.wala.ipa.callgraph.Entrypoint> entryPoints)

Method Summary

Modifier and Type	Method and Description
protected int	enterAT_FIRST(int PC) Loop starts here.
protected int	leaveAT_LAST(int PC) Loops to AT_FIRST.

Methods inherited from class com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure.LoopAndroidModel

enterAFTER_LOOP, enterSTART_OF_LOOP

Methods inherited from class com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure.SingleStartAndroidModel

enterEND_OF_LOOP, enterMULTIPLE_TIMES_IN_LOOP

Methods inherited from class com.ibm.wala.dalvik.ipa.callgraph.androidModel.structure.AbstractAndroidModel

enter, enterAT_LAST, enterBEFORE_LOOP, enterMIDDLE_OF_LOOP, finish, hadSectionSwitch, returnTypesBetween

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LoopKillAndroidModel

public LoopKillAndroidModel(com.ibm.wala.ipa.summaries.VolatileMethodSummary body,
                            com.ibm.wala.util.ssa.TypeSafeInstructionFactory insts,
                            com.ibm.wala.util.ssa.SSAValueManager paramManager,
                            Iterable<? extends com.ibm.wala.ipa.callgraph.Entrypoint> entryPoints)

Parameters:

body - The MethodSummary to add instructions to

insts - Will be used to generate the instructions

Method Detail

enterAT_FIRST

protected int enterAT_FIRST(int PC)

Loop starts here. Gets called when Label ExecutionOrder.AT_FIRST got stepped over. In most cases you don't want to invoke this function directly but to use enter(ExecutionOrder.AT_FIRST, int) instead. Sideeffects: currentSection is updated, instructions are inserted into the body

Overrides:

enterAT_FIRST in class AbstractAndroidModel

Parameters:

PC - Program Counter instructions shall be placed at. In most cases you'll simply pass body.getNextProgramCounter()

Returns:

Program Counter after insertion of the code

leaveAT_LAST

protected int leaveAT_LAST(int PC)

Loops to AT_FIRST. It inserts a gotoInstruction and fills the space reserved before with actual PhiInstructions Does not insert any special handling. Gets called when the model gets finished. In most cases you don't want to invoke this function directly but to use AbstractAndroidModel.finish(int) instead Sideeffects: instructions are inserted into the body

Overrides:

leaveAT_LAST in class LoopAndroidModel

Parameters:

PC - Program Counter instructions shall be placed at. In most cases you'll simply pass body.getNextProgramCounter()

Returns:

Program Counter after insertion of the code