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Code Issues Releases Wiki Activity

GP-5104 get calling/called functions fixes

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This commit is contained in:
James 2024-12-02 08:39:14 -05:00
parent 07d7358970
commit dadfaae8c9
2 changed files with 40 additions and 112 deletions
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82
Ghidra/Features/Base/ghidra_scripts/PrintFunctionCallTreesScript.java
View file

@ -15,16 +15,11 @@
*/
// An example script that will print to the console, for a given function, all other functions
// that call it and all functions that it calls.
//import ghidra.app.plugin.core.navigation.locationreferences.ReferenceUtils;
import java.util.*;
import ghidra.app.plugin.core.navigation.locationreferences.ReferenceUtils;
import ghidra.app.script.GhidraScript;
import ghidra.program.model.address.*;
import ghidra.program.model.listing.*;
import ghidra.program.model.symbol.*;
import ghidra.program.util.FunctionSignatureFieldLocation;
import ghidra.util.exception.CancelledException;
import ghidra.program.model.listing.Function;
import ghidra.program.model.listing.FunctionManager;
public class PrintFunctionCallTreesScript extends GhidraScript {
@ -42,19 +37,9 @@ public class PrintFunctionCallTreesScript extends GhidraScript {
printOutgoingCalls(function);
}
private void printIncomingCalls(Function function) throws CancelledException {
Address functionAddress = function.getEntryPoint();
FunctionSignatureFieldLocation location =
new FunctionSignatureFieldLocation(function.getProgram(), functionAddress);
Set<Address> addresses = ReferenceUtils.getReferenceAddresses(location, monitor);
FunctionManager functionManager = currentProgram.getFunctionManager();
Set<Function> callingFunctions = new HashSet<>();
for (Address fromAddress : addresses) {
Function callerFunction = functionManager.getFunctionContaining(fromAddress);
if (callerFunction != null) {
callingFunctions.add(callerFunction);
}
}
private void printIncomingCalls(Function function) {
Set<Function> callingFunctions = function.getCallingFunctions(monitor);
// sort them by address
List<Function> list = new ArrayList<>(callingFunctions);
@ -66,15 +51,8 @@ public class PrintFunctionCallTreesScript extends GhidraScript {
}
private void printOutgoingCalls(Function function) {
AddressSetView functionBody = function.getBody();
Set<Reference> references = getReferencesFrom(currentProgram, functionBody);
Set<Function> outgoingFunctions = new HashSet<>();
FunctionManager functionManager = currentProgram.getFunctionManager();
for (Reference reference : references) {
Address toAddress = reference.getToAddress();
Function calledFunction = functionManager.getFunctionAt(toAddress);
maybeAddIncomingFunction(outgoingFunctions, reference, calledFunction);
}
Set<Function> outgoingFunctions = function.getCalledFunctions(monitor);
// sort them by address
List<Function> list = new ArrayList<>(outgoingFunctions);
@ -85,52 +63,6 @@ public class PrintFunctionCallTreesScript extends GhidraScript {
}
}
private void maybeAddIncomingFunction(Set<Function> incomingFunctions, Reference reference,
Function calledFunction) {
if (calledFunction != null) {
incomingFunctions.add(calledFunction);
}
else if (isCallReference(reference)) {
// we have a call reference, but no function
println("Outgoing function call with no function from " + reference.getFromAddress() +
" to " + reference.getToAddress());
}
}
private boolean isCallReference(Reference reference) {
RefType type = reference.getReferenceType();
if (type.isCall()) {
return true;
}
if (type.isIndirect()) {
Listing listing = currentProgram.getListing();
Instruction instruction = listing.getInstructionAt(reference.getFromAddress());
if (instruction != null) {
FlowType flowType = instruction.getFlowType();
return flowType.isCall();
}
}
return false;
}
private Set<Reference> getReferencesFrom(Program program, AddressSetView addresses) {
Set<Reference> set = new HashSet<>();
ReferenceManager referenceManager = program.getReferenceManager();
AddressIterator addressIterator = addresses.getAddresses(true);
while (addressIterator.hasNext()) {
Address address = addressIterator.next();
Reference[] referencesFrom = referenceManager.getReferencesFrom(address);
if (referencesFrom != null) {
for (Reference reference : referencesFrom) {
set.add(reference);
}
}
}
return set;
}
private Function getCurrentFunction() {
FunctionManager functionManager = currentProgram.getFunctionManager();
return functionManager.getFunctionContaining(currentAddress);

58
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/function/FunctionDB.java
View file

@ -2717,58 +2717,54 @@ public class FunctionDB extends DatabaseObject implements Function {
@Override
public Set<Function> getCallingFunctions(TaskMonitor monitor) {
monitor = TaskMonitor.dummyIfNull(monitor);
Set<Function> set = new HashSet<>();
Set<Function> callers = new HashSet<>();
ReferenceIterator iter = program.getReferenceManager().getReferencesTo(getEntryPoint());
while (iter.hasNext()) {
if (monitor.isCancelled()) {
return set;
break;
}
Reference reference = iter.next();
if (!reference.getReferenceType().isCall()) {
continue;
}
Address fromAddress = reference.getFromAddress();
Function callerFunction = manager.getFunctionContaining(fromAddress);
if (callerFunction != null) {
set.add(callerFunction);
callers.add(callerFunction);
}
}
return set;
return callers;
}
@Override
public Set<Function> getCalledFunctions(TaskMonitor monitor) {
monitor = TaskMonitor.dummyIfNull(monitor);
Set<Function> set = new HashSet<>();
Set<Reference> references = getReferencesFromBody(monitor);
for (Reference reference : references) {
if (monitor.isCancelled()) {
return set;
}
Address toAddress = reference.getToAddress();
Function calledFunction = manager.getFunctionAt(toAddress);
if (calledFunction != null) {
set.add(calledFunction);
}
}
return set;
}
Set<Function> callees = new HashSet<>();
ReferenceManager refManager = program.getReferenceManager();
AddressRangeIterator rangeIter = getBody().getAddressRanges();
private Set<Reference> getReferencesFromBody(TaskMonitor monitor) {
Set<Reference> set = new HashSet<>();
ReferenceManager referenceManager = program.getReferenceManager();
AddressSetView addresses = getBody();
AddressIterator addressIterator = addresses.getAddresses(true);
while (addressIterator.hasNext()) {
while (rangeIter.hasNext()) {
AddressRange range = rangeIter.next();
ReferenceIterator refIter = refManager.getReferenceIterator(range.getMinAddress());
while (refIter.hasNext()) {
if (monitor.isCancelled()) {
return set;
return callees;
}
Address address = addressIterator.next();
Reference[] referencesFrom = referenceManager.getReferencesFrom(address);
if (referencesFrom != null) {
for (Reference reference : referencesFrom) {
set.add(reference);
Reference ref = refIter.next();
if (!range.contains(ref.getFromAddress())) {
break; // exhausted all addresses in the AddressRange, check next AddressRange
}
if (!ref.getReferenceType().isCall()) {
continue; // reference is not a call, check next reference
}
Function callee = manager.getFunctionAt(ref.getToAddress());
if (callee != null) { // sanity check
callees.add(callee);
}
}
}
return set;
return callees;
}
@Override