GP-1647 equivalence check

Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/DecompInterface.java

@@ -86,7 +86,7 @@ public class DecompInterface {
 	// Last warning messages from the decompiler
 	// or other error message
 	protected String decompileMessage;
-	protected BasicCompilerSpec compilerSpec;
+	protected CompilerSpec compilerSpec;
 	protected DecompileProcess decompProcess;
 	protected DecompileCallback decompCallback;
 	private DecompileDebug debug;
@@ -221,7 +221,9 @@ public class DecompInterface {
 			(SleighLanguageDescription) pcodelanguage.getLanguageDescription();
 		ResourceFile pspecfile = sleighdescription.getSpecFile();
 		String pspecxml = fileToString(pspecfile);
-		String cspecxml = compilerSpec.getXMLString();
+		StringBuilder buffer = new StringBuilder();
+		compilerSpec.saveXml(buffer);
+		String cspecxml = buffer.toString();
 
 		decompCallback.setNativeMessage(null);
 		decompProcess.registerProgram(decompCallback, pspecxml, cspecxml, tspec, coretypes);
@@ -313,7 +315,7 @@ public class DecompInterface {
 				"Language has unsupported compiler spec: " + spec.getClass().getName();
 			return false;
 		}
-		compilerSpec = (BasicCompilerSpec) spec;
+		compilerSpec = spec;
 
 		dtmanage = new PcodeDataTypeManager(prog);
 		try {

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/BitFieldPacking.java

@@ -42,4 +42,22 @@ public interface BitFieldPacking {
 	 * a zero-length bit-field
 	 */
 	int getZeroLengthBoundary();
+
+	/**
+	 * Determine if this BitFieldPacking is equivalent to another specified instance
+	 * @param obj is the other instance
+	 * @return true if they are equivalent
+	 */
+	public default boolean isEquivalent(BitFieldPacking obj) {
+		if (isTypeAlignmentEnabled() != obj.isTypeAlignmentEnabled()) {
+			return false;
+		}
+		if (useMSConvention() != obj.useMSConvention()) {
+			return false;
+		}
+		if (getZeroLengthBoundary() != obj.getZeroLengthBoundary()) {
+			return false;
+		}
+		return true;
+	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/BitFieldPackingImpl.java

@@ -118,24 +118,4 @@ public class BitFieldPackingImpl implements BitFieldPacking {
 		}
 		parser.end();
 	}
-
-	@Override
-	public boolean equals(Object obj) {
-		BitFieldPackingImpl op2 = (BitFieldPackingImpl) obj;
-		if (typeAlignmentEnabled != op2.typeAlignmentEnabled) {
-			return false;
-		}
-		if (useMSConvention != op2.useMSConvention) {
-			return false;
-		}
-		if (zeroLengthBoundary != op2.zeroLengthBoundary) {
-			return false;
-		}
-		return true;
-	}
-
-	@Override
-	public int hashCode() {
-		return (typeAlignmentEnabled ? 1 : 13) + (useMSConvention ? 5 : 27) + zeroLengthBoundary;
-	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/DataOrganization.java

@@ -172,4 +172,69 @@ public interface DataOrganization {
 //	 * @return the aligned offset for the data type
 //	 */
 //	int getAlignmentOffset(int minimumOffset, DataType dataType, int dtSize);
+
+	/**
+	 * Determine if this DataOrganization is equivalent to another specific instance
+	 * @param obj is the other instance
+	 * @return true if they are equivalent
+	 */
+	public default boolean isEquivalent(DataOrganization obj) {
+		if (getAbsoluteMaxAlignment() != obj.getAbsoluteMaxAlignment()) {
+			return false;
+		}
+		if (isBigEndian() != obj.isBigEndian()) {
+			return false;
+		}
+		if (!getBitFieldPacking().isEquivalent(obj.getBitFieldPacking())) {
+			return false;
+		}
+		if (getCharSize() != obj.getCharSize() || getWideCharSize() != obj.getWideCharSize()) {
+			return false;
+		}
+		if (getDefaultAlignment() != obj.getDefaultAlignment()) {
+			return false;
+		}
+		if (getDefaultPointerAlignment() != obj.getDefaultPointerAlignment()) {
+			return false;
+		}
+		if (getDoubleSize() != obj.getDoubleSize() || getFloatSize() != obj.getFloatSize()) {
+			return false;
+		}
+		if (getIntegerSize() != obj.getIntegerSize() ||
+			getLongLongSize() != obj.getLongLongSize()) {
+			return false;
+		}
+		if (getShortSize() != obj.getShortSize()) {
+			return false;
+		}
+		if (getLongSize() != obj.getLongSize() || getLongDoubleSize() != obj.getLongDoubleSize()) {
+			return false;
+		}
+		if (isSignedChar() != obj.isSignedChar()) {
+			return false;
+		}
+		if (getMachineAlignment() != obj.getMachineAlignment()) {
+			return false;
+		}
+		if (getPointerSize() != obj.getPointerSize() ||
+			getPointerShift() != obj.getPointerShift()) {
+			return false;
+		}
+		int[] keys = getSizes();
+		int[] op2keys = obj.getSizes();
+		if (keys.length != op2keys.length) {
+			return false;
+		}
+		try {
+			for (int k : keys) {
+				if (getSizeAlignment(k) != obj.getSizeAlignment(k)) {
+					return false;
+				}
+			}
+		}
+		catch (NoValueException ex) {
+			return false;
+		}
+		return true;
+	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/DataOrganizationImpl.java

@@ -18,7 +18,6 @@ package ghidra.program.model.data;
 import java.util.*;
 
 import ghidra.program.model.lang.Language;
-import ghidra.util.SystemUtilities;
 import ghidra.util.exception.NoValueException;
 import ghidra.util.xml.SpecXmlUtils;
 import ghidra.xml.XmlElement;
@@ -736,85 +735,4 @@ public class DataOrganizationImpl implements DataOrganization {
 		parser.end();
 
 	}
-
-	@Override
-	public boolean equals(Object obj) {
-		DataOrganizationImpl op2 = (DataOrganizationImpl) obj;
-		if (absoluteMaxAlignment != op2.absoluteMaxAlignment) {
-			return false;
-		}
-		if (bigEndian != op2.bigEndian) {
-			return false;
-		}
-		if (!bitFieldPacking.equals(op2.bitFieldPacking)) {
-			return false;
-		}
-		if (charSize != op2.charSize || wideCharSize != op2.wideCharSize) {
-			return false;
-		}
-		if (defaultAlignment != op2.defaultAlignment) {
-			return false;
-		}
-		if (defaultPointerAlignment != op2.defaultPointerAlignment) {
-			return false;
-		}
-		if (doubleSize != op2.doubleSize || floatSize != op2.floatSize) {
-			return false;
-		}
-		if (integerSize != op2.integerSize || longLongSize != op2.longLongSize) {
-			return false;
-		}
-		if (shortSize != op2.shortSize) {
-			return false;
-		}
-		if (longSize != op2.longSize || longDoubleSize != op2.longDoubleSize) {
-			return false;
-		}
-		if (isSignedChar != op2.isSignedChar) {
-			return false;
-		}
-		if (machineAlignment != op2.machineAlignment) {
-			return false;
-		}
-		if (pointerSize != op2.pointerSize || pointerShift != op2.pointerShift) {
-			return false;
-		}
-		Set<Integer> keys = sizeAlignmentMap.keySet();
-		Set<Integer> op2keys = op2.sizeAlignmentMap.keySet();
-		if (keys.size() != op2keys.size()) {
-			return false;
-		}
-		for (int k : keys) {
-			if (!SystemUtilities.isEqual(sizeAlignmentMap.get(k), op2.sizeAlignmentMap.get(k))) {
-				return false;
-			}
-		}
-		return true;
-	}
-
-	@Override
-	public int hashCode() {
-		int hash = bitFieldPacking.hashCode();
-		hash = 79 * hash + absoluteMaxAlignment;
-		hash = 79 * hash + (bigEndian ? 27 : 13);
-		hash = 79 * hash + charSize;
-		hash = 79 * hash + defaultAlignment;
-		hash = 79 * hash + defaultPointerAlignment;
-		hash = 79 * hash + doubleSize;
-		hash = 79 * hash + floatSize;
-		hash = 79 * hash + integerSize;
-		hash = 79 * hash + (isSignedChar ? 1 : 3);
-		hash = 79 * hash + longDoubleSize;
-		hash = 79 * hash + longLongSize;
-		hash = 79 * hash + longSize;
-		hash = 79 * hash + machineAlignment;
-		hash = 79 * hash + pointerShift;
-		hash = 79 * hash + pointerSize;
-		hash = 79 * hash + shortSize;
-		hash = 79 * hash + wideCharSize;
-		for (int k : sizeAlignmentMap.keySet()) {
-			hash = 79 * hash + sizeAlignmentMap.get(k);
-		}
-		return hash;
-	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/BasicCompilerSpec.java

@@ -302,16 +302,6 @@ public class BasicCompilerSpec implements CompilerSpec {
 		}
 	}
 
-	/**
-	 * Convenience method to marshal this entire object, via saveXml, into a String object.
-	 * @return a String containing this entire spec as an XML document.
-	 */
-	public String getXMLString() {
-		StringBuilder buffer = new StringBuilder();
-		saveXml(buffer);
-		return buffer.toString();
-	}
-
 	@Override
 	public void applyContextSettings(DefaultProgramContext programContext) {
 		for (ContextSetting cs : ctxsetting) {
@@ -512,11 +502,7 @@ public class BasicCompilerSpec implements CompilerSpec {
 		}
 	}
 
-	/**
-	 * Marshal this entire specification to an XML stream.  An XML document is written with
-	 * root tag \<compiler_spec>.
-	 * @param buffer is the XML stream
-	 */
+	@Override
 	public void saveXml(StringBuilder buffer) {
 		buffer.append("<compiler_spec>\n");
 		saveProperties(buffer);
@@ -1125,111 +1111,114 @@ public class BasicCompilerSpec implements CompilerSpec {
 	}
 
 	@Override
-	public boolean equals(Object obj) {
-		BasicCompilerSpec op2 = (BasicCompilerSpec) obj;
-		if (aggressiveTrim != op2.aggressiveTrim || copiedThisModel != op2.copiedThisModel) {
+	public boolean isEquivalent(CompilerSpec obj) {
+		if (getClass() != obj.getClass()) {
 			return false;
 		}
-		if (!dataOrganization.equals(op2.dataOrganization)) {
+		BasicCompilerSpec other = (BasicCompilerSpec) obj;
+		if (aggressiveTrim != other.aggressiveTrim || copiedThisModel != other.copiedThisModel) {
 			return false;
 		}
-		if (!ctxsetting.equals(op2.ctxsetting)) {
+		if (!dataOrganization.isEquivalent(other.dataOrganization)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(deadCodeDelay, op2.deadCodeDelay)) {
+		if (ctxsetting.size() != other.ctxsetting.size()) {
+			return false;
+		}
+		for (int i = 0; i < ctxsetting.size(); ++i) {
+			if (!ctxsetting.get(i).isEquivalent(other.ctxsetting.get(i))) {
+				return false;
+			}
+		}
+		if (!SystemUtilities.isEqual(deadCodeDelay, other.deadCodeDelay)) {
 			return false;
 		}
 		if (defaultModel != null) {
-			if (op2.defaultModel == null) {
+			if (other.defaultModel == null) {
 				return false;
 			}
-			if (!defaultModel.name.equals(op2.defaultModel.name)) {
+			if (!defaultModel.name.equals(other.defaultModel.name)) {
 				return false;
 			}
 		}
-		else if (op2.defaultModel != null) {
+		else if (other.defaultModel != null) {
 			return false;
 		}
 		if (evalCalledModel != null) {
-			if (op2.evalCalledModel == null) {
+			if (other.evalCalledModel == null) {
 				return false;
 			}
-			if (!evalCalledModel.name.equals(op2.evalCalledModel.name)) {
+			if (!evalCalledModel.name.equals(other.evalCalledModel.name)) {
 				return false;
 			}
 		}
-		else if (op2.evalCalledModel != null) {
+		else if (other.evalCalledModel != null) {
 			return false;
 		}
 		if (evalCurrentModel != null) {
-			if (op2.evalCurrentModel == null) {
+			if (other.evalCurrentModel == null) {
 				return false;
 			}
-			if (!evalCurrentModel.name.equals(op2.evalCurrentModel.name)) {
+			if (!evalCurrentModel.name.equals(other.evalCurrentModel.name)) {
 				return false;
 			}
 		}
-		else if (op2.evalCurrentModel != null) {
+		else if (other.evalCurrentModel != null) {
 			return false;
 		}
-		if (allmodels.length != op2.allmodels.length) {
+		if (allmodels.length != other.allmodels.length) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(allmodels, op2.allmodels)) {
+		for (int i = 0; i < allmodels.length; ++i) {
+			if (!allmodels[i].isEquivalent(other.allmodels[i])) {
 				return false;
 			}
-		if (!SystemUtilities.isEqual(extraRanges, op2.extraRanges)) {
+		}
+		if (!SystemUtilities.isEqual(extraRanges, other.extraRanges)) {
 			return false;
 		}
-		if (funcPtrAlign != op2.funcPtrAlign) {
+		if (funcPtrAlign != other.funcPtrAlign) {
 			return false;
 		}
-		if (!globalSet.equals(op2.globalSet)) {
+		if (!globalSet.equals(other.globalSet)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(inferPtrBounds, op2.inferPtrBounds)) {
+		if (!SystemUtilities.isEqual(inferPtrBounds, other.inferPtrBounds)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(noHighPtr, op2.noHighPtr)) {
+		if (!SystemUtilities.isEqual(noHighPtr, other.noHighPtr)) {
 			return false;
 		}
-		if (!pcodeInject.equals(op2.pcodeInject)) {
+		if (!pcodeInject.isEquivalent(other.pcodeInject)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(preferSplit, op2.preferSplit)) {
+		if (!SystemUtilities.isEqual(preferSplit, other.preferSplit)) {
 			return false;
 		}
-		if (!properties.equals(op2.properties)) {
+		if (!properties.equals(other.properties)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(readOnlySet, op2.readOnlySet)) {
+		if (!SystemUtilities.isEqual(readOnlySet, other.readOnlySet)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(returnAddress, op2.returnAddress)) {
+		if (!SystemUtilities.isEqual(returnAddress, other.returnAddress)) {
 			return false;
 		}
-		if (reverseJustifyStack != op2.reverseJustifyStack) {
+		if (reverseJustifyStack != other.reverseJustifyStack) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(spaceBases, op2.spaceBases)) {
+		if (!SystemUtilities.isEqual(spaceBases, other.spaceBases)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(stackBaseSpace, op2.stackBaseSpace)) {
+		if (!SystemUtilities.isEqual(stackBaseSpace, other.stackBaseSpace)) {
 			return false;
 		}
-		if (stackGrowsNegative != op2.stackGrowsNegative) {
+		if (stackGrowsNegative != other.stackGrowsNegative) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(stackPointer, op2.stackPointer)) {
+		if (!SystemUtilities.isEqual(stackPointer, other.stackPointer)) {
 			return false;
 		}
 		return true;
 	}
-
-	@Override
-	public int hashCode() {
-		int hash = language.getLanguageID().hashCode();
-		hash = 79 * description.getCompilerSpecID().hashCode() + hash;
-		return hash;
-	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/CompilerSpec.java

@@ -237,4 +237,18 @@ public interface CompilerSpec {
 	 * @return read-only set of property keys
 	 */
 	public Set<String> getPropertyKeys();
+
+	/**
+	 * Marshal this entire specification to an XML stream.  An XML document is written with
+	 * root tag \<compiler_spec>.
+	 * @param buffer is the XML stream
+	 */
+	public void saveXml(StringBuilder buffer);
+
+	/**
+	 * Determine if this CompilerSpec is equivalent to another specified instance
+	 * @param obj is the other instance
+	 * @return true if they are equivalent
+	 */
+	public boolean isEquivalent(CompilerSpec obj);
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/ContextSetting.java

@@ -29,7 +29,7 @@ import ghidra.xml.*;
  * Class for context configuration information as
  * part of the compiler configuration (CompilerSpec)
  */
-public class ContextSetting {
+public final class ContextSetting {
 	private Register register;  // Register being set in default context
 	private BigInteger value;     // value being set in default context
 	private Address startAddr; // Beginning address of context
@@ -108,33 +108,27 @@ public class ContextSetting {
 		buffer.append("/>\n");
 	}
 
-	@Override
-	public boolean equals(Object obj) {
-		ContextSetting op2 = (ContextSetting) obj;
-		if (!startAddr.equals(op2.startAddr)) {
+	/**
+	 * Determine if this ContextSetting is equivalent to another specified instance
+	 * @param obj is the other instance
+	 * @return true if they are equivalent
+	 */
+	public boolean isEquivalent(ContextSetting obj) {
+		if (!startAddr.equals(obj.startAddr)) {
 			return false;
 		}
-		if (!endAddr.equals(op2.endAddr)) {
+		if (!endAddr.equals(obj.endAddr)) {
 			return false;
 		}
-		if (!register.equals(op2.register)) {
+		if (!register.equals(obj.register)) {
 			return false;
 		}
-		if (!value.equals(op2.value)) {
+		if (!value.equals(obj.value)) {
 			return false;
 		}
 		return true;
 	}
 
-	@Override
-	public int hashCode() {
-		int hash = startAddr.hashCode();
-		hash = 79 * hash + endAddr.hashCode();
-		hash = 79 * hash + register.hashCode();
-		hash = 79 * hash + value.hashCode();
-		return hash;
-	}
-
 	public static void parseContextSet(List<ContextSetting> resList, XmlPullParser parser,
 			CompilerSpec cspec) throws XmlParseException {
 		XmlElement el = parser.start();

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/InjectPayload.java

@@ -62,25 +62,20 @@ public interface InjectPayload {
 			index = i;
 		}
 
-		@Override
-		public boolean equals(Object obj) {
-			InjectParameter op2 = (InjectParameter) obj;
-			if (index != op2.index || size != op2.size) {
+		/**
+		 * Determine if this InjectParameter and another instance are equivalent
+		 * @param obj is the other instance
+		 * @return true if they are equivalent
+		 */
+		public boolean isEquivalent(InjectParameter obj) {
+			if (!name.equals(obj.name)) {
 				return false;
 			}
-			if (!name.equals(op2.name)) {
+			if (index != obj.index || size != obj.size) {
 				return false;
 			}
 			return true;
 		}
-
-		@Override
-		public int hashCode() {
-			int hash = name.hashCode();
-			hash = 79 * hash + index;
-			hash = 79 * hash + size;
-			return hash;
-		}
 	}
 
 	/**
@@ -160,4 +155,12 @@ public interface InjectPayload {
 	 * @throws XmlParseException for badly formed XML
 	 */
 	public void restoreXml(XmlPullParser parser, SleighLanguage language) throws XmlParseException;
+
+	/**
+	 * Determine if this InjectPayload and another instance are equivalent
+	 * (have the same name and generate the same p-code)
+	 * @param obj is the other payload
+	 * @return true if they are equivalent
+	 */
+	public boolean isEquivalent(InjectPayload obj);
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/InjectPayloadCallfixup.java

@@ -102,21 +102,14 @@ public class InjectPayloadCallfixup extends InjectPayloadSleigh {
 	}
 
 	@Override
-	public boolean equals(Object obj) {
+	public boolean isEquivalent(InjectPayload obj) {
+		if (getClass() != obj.getClass()) {
+			return false;
+		}
 		InjectPayloadCallfixup op2 = (InjectPayloadCallfixup) obj;
 		if (!targetSymbolNames.equals(op2.targetSymbolNames)) {
 			return false;
 		}
-		return super.equals(obj);
-	}
-
-	@Override
-	public int hashCode() {
-		int hash = 13;
-		for (String target : targetSymbolNames) {
-			hash = 79 * hash + target.hashCode();
-		}
-		hash = 79 * hash + super.hashCode();
-		return hash;
+		return super.isEquivalent(obj);
 	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/InjectPayloadJumpAssist.java

@@ -45,4 +45,16 @@ public class InjectPayloadJumpAssist extends InjectPayloadSleigh {
 		}
 		super.restoreXml(parser, language);
 	}
+
+	@Override
+	public boolean isEquivalent(InjectPayload obj) {
+		if (getClass() != obj.getClass()) {
+			return false;
+		}
+		InjectPayloadJumpAssist op2 = (InjectPayloadJumpAssist) obj;
+		if (!baseName.equals(op2.baseName)) {
+			return false;
+		}
+		return super.isEquivalent(obj);
+	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/InjectPayloadSegment.java

@@ -103,7 +103,10 @@ public class InjectPayloadSegment extends InjectPayloadSleigh {
 	}
 
 	@Override
-	public boolean equals(Object obj) {
+	public boolean isEquivalent(InjectPayload obj) {
+		if (getClass() != obj.getClass()) {
+			return false;
+		}
 		InjectPayloadSegment op2 = (InjectPayloadSegment) obj;
 		if (constResolveOffset != op2.constResolveOffset) {
 			return false;
@@ -120,18 +123,6 @@ public class InjectPayloadSegment extends InjectPayloadSleigh {
 		if (supportsFarPointer != op2.supportsFarPointer) {
 			return false;
 		}
-		return true;
-	}
-
-	@Override
-	public int hashCode() {
-		int hash = space.hashCode();
-		if (constResolveSpace != null) {
-			hash = 79 * hash + constResolveSpace.hashCode();
-		}
-		hash = 79 * hash + Long.hashCode(constResolveOffset);
-		hash = 79 * hash + constResolveSize;
-		hash = 79 * hash + (supportsFarPointer ? 1 : 13);
-		return hash;
+		return super.isEquivalent(obj);
 	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/InjectPayloadSleigh.java

@@ -26,7 +26,6 @@ import ghidra.program.model.listing.Program;
 import ghidra.program.model.mem.MemoryAccessException;
 import ghidra.program.model.pcode.PcodeOp;
 import ghidra.program.model.pcode.Varnode;
-import ghidra.util.SystemUtilities;
 import ghidra.util.xml.SpecXmlUtils;
 import ghidra.xml.*;
 
@@ -395,17 +394,30 @@ public class InjectPayloadSleigh implements InjectPayload {
 	}
 
 	@Override
-	public boolean equals(Object obj) {
+	public boolean isEquivalent(InjectPayload obj) {
+		if (getClass() != obj.getClass()) {
+			return false;
+		}
 		InjectPayloadSleigh op2 = (InjectPayloadSleigh) obj;
 		if (!name.equals(op2.name)) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(inputlist, op2.inputlist)) {
+		if (inputlist.length != op2.inputlist.length) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(output, op2.output)) {
+		for (int i = 0; i < inputlist.length; ++i) {
+			if (!inputlist[i].isEquivalent(op2.inputlist[i])) {
 				return false;
 			}
+		}
+		if (output.length != op2.output.length) {
+			return false;
+		}
+		for (int i = 0; i < output.length; ++i) {
+			if (!output[i].isEquivalent(op2.output[i])) {
+				return false;
+			}
+		}
 		if (incidentalCopy != op2.incidentalCopy) {
 			return false;
 		}
@@ -423,22 +435,6 @@ public class InjectPayloadSleigh implements InjectPayload {
 		return true;
 	}
 
-	@Override
-	public int hashCode() {
-		int hash = (incidentalCopy ? 1 : 13);
-		hash = 79 * hash + name.hashCode();
-		hash = 79 * hash + type;
-		hash = 79 * hash + subType;
-		hash = 79 * hash + paramShift;
-		for (InjectParameter param : inputlist) {
-			hash = 79 * hash + param.hashCode();
-		}
-		for (InjectParameter param : output) {
-			hash = 79 * hash + param.hashCode();
-		}
-		return hash;
-	}
-
 	/**
 	 * Build a dummy p-code sequence to use in place of a normal parsed payload.
 	 * A ConstructTpl is built out of Varnode and PcodeOp templates that can

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/ParamEntry.java

@@ -494,50 +494,33 @@ public class ParamEntry {
 		parser.end(el);
 	}
 
-	@Override
-	public boolean equals(Object obj) {
-		ParamEntry op2 = (ParamEntry) obj;
-		if (!spaceid.equals(op2.spaceid) || addressbase != op2.addressbase) {
+	/**
+	 * Determine if this ParamEntry is equivalent to another instance
+	 * @param obj is the other instance
+	 * @return true if they are equivalent
+	 */
+	public boolean isEquivalent(ParamEntry obj) {
+		if (!spaceid.equals(obj.spaceid) || addressbase != obj.addressbase) {
 			return false;
 		}
-		if (size != op2.size || minsize != op2.minsize || alignment != op2.alignment) {
+		if (size != obj.size || minsize != obj.minsize || alignment != obj.alignment) {
 			return false;
 		}
-		if (type != op2.type || flags != op2.flags) {
+		if (type != obj.type || flags != obj.flags) {
 			return false;
 		}
-		if (numslots != op2.numslots) {
+		if (numslots != obj.numslots) {
 			return false;
 		}
-		if (group != op2.group || groupsize != op2.groupsize) {
+		if (group != obj.group || groupsize != obj.groupsize) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(joinrec, op2.joinrec)) {
+		if (!SystemUtilities.isArrayEqual(joinrec, obj.joinrec)) {
 			return false;
 		}
 		return true;
 	}
 
-	@Override
-	public int hashCode() {
-		int hash = spaceid.hashCode();
-		hash = 79 * hash + Long.hashCode(addressbase);
-		hash = 79 * hash + alignment;
-		hash = 79 * hash + flags;
-		hash = 79 * hash + group;
-		hash = 79 * hash + groupsize;
-		hash = 79 * hash + minsize;
-		hash = 79 * hash + numslots;
-		hash = 79 * hash + size;
-		hash = 79 * hash + type;
-		if (joinrec != null) {
-			for (Varnode vn : joinrec) {
-				hash = 79 * hash + vn.hashCode();
-			}
-		}
-		return hash;
-	}
-
 	/**
 	 * Unsigned less-than operation
 	 * @param a is the first operand

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/ParamList.java

@@ -79,4 +79,11 @@ public interface ParamList {
 	public boolean possibleParamWithSlot(Address loc, int size, WithSlotRec res);
 
 	public boolean isThisBeforeRetPointer();
+
+	/**
+	 * Determine if this ParmList is equivalent to another instance
+	 * @param obj is the other instance
+	 * @return true if they are equivalent
+	 */
+	public boolean isEquivalent(ParamList obj);
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/ParamListStandard.java

@@ -381,11 +381,19 @@ public class ParamListStandard implements ParamList {
 	}
 
 	@Override
-	public boolean equals(Object obj) {
-		ParamListStandard op2 = (ParamListStandard) obj;
-		if (!SystemUtilities.isArrayEqual(entry, op2.entry)) {
+	public boolean isEquivalent(ParamList obj) {
+		if (this.getClass() != obj.getClass()) {
 			return false;
 		}
+		ParamListStandard op2 = (ParamListStandard) obj;
+		if (entry.length != op2.entry.length) {
+			return false;
+		}
+		for (int i = 0; i < entry.length; ++i) {
+			if (!entry[i].isEquivalent(op2.entry[i])) {
+				return false;
+			}
+		}
 		if (numgroup != op2.numgroup || pointermax != op2.pointermax) {
 			return false;
 		}
@@ -398,20 +406,6 @@ public class ParamListStandard implements ParamList {
 		return true;
 	}
 
-	@Override
-	public int hashCode() {
-		int hash = numgroup;
-		hash = 79 * hash + pointermax;
-		hash = 79 * hash + (thisbeforeret ? 27 : 19);
-		for (ParamEntry param : entry) {
-			hash = 79 * hash + param.hashCode();
-		}
-		if (spacebase == null) {
-			hash = 79 * hash + spacebase.hashCode();
-		}
-		return hash;
-	}
-
 	@Override
 	public boolean isThisBeforeRetPointer() {
 		return thisbeforeret;

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/PcodeInjectLibrary.java

@@ -25,7 +25,6 @@ import ghidra.program.model.lang.InjectPayload.InjectParameter;
 import ghidra.program.model.listing.Program;
 import ghidra.sleigh.grammar.Location;
 import ghidra.util.Msg;
-import ghidra.util.SystemUtilities;
 import ghidra.xml.XmlParseException;
 import ghidra.xml.XmlPullParser;
 
@@ -423,59 +422,93 @@ public class PcodeInjectLibrary {
 		return uniqueBase;
 	}
 
-	@Override
-	public boolean equals(Object obj) {
-		PcodeInjectLibrary op2 = (PcodeInjectLibrary) obj;
+	/**
+	 * Compare that this and the other library contain all equivalent payloads
+	 * @param obj is the other library
+	 * @return true if all payloads are equivalent
+	 */
+	public boolean isEquivalent(PcodeInjectLibrary obj) {
+		if (getClass() != obj.getClass()) {
+			return false;
+		}
 		// Cannot compare uniqueBase as one side may not have parsed p-code
 //		if (uniqueBase != op2.uniqueBase) {
 //			return false;
 //		}
-		if (!callFixupMap.equals(op2.callFixupMap)) {
+		if (callFixupMap.size() != obj.callFixupMap.size()) {
 			return false;
 		}
-		if (!callMechFixupMap.equals(op2.callMechFixupMap)) {
+		for (Entry<String, InjectPayload> entry : callFixupMap.entrySet()) {
+			InjectPayload op2payload = obj.callFixupMap.get(entry.getKey());
+			if (!entry.getValue().isEquivalent(op2payload)) {
 				return false;
 			}
-		if (!callOtherFixupMap.equals(op2.callOtherFixupMap)) {
+		}
+		if (callMechFixupMap.size() != obj.callMechFixupMap.size()) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(callOtherOverride, op2.callOtherOverride)) {
+		for (Entry<String, InjectPayload> entry : callMechFixupMap.entrySet()) {
+			InjectPayload op2payload = obj.callMechFixupMap.get(entry.getKey());
+			if (!entry.getValue().isEquivalent(op2payload)) {
 				return false;
 			}
-		if (!exePcodeMap.equals(op2.exePcodeMap)) {
+		}
+		if (callOtherFixupMap.size() != obj.callOtherFixupMap.size()) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(programPayload, op2.programPayload)) {
+		for (Entry<String, InjectPayload> entry : callOtherFixupMap.entrySet()) {
+			InjectPayload op2payload = obj.callOtherFixupMap.get(entry.getKey());
+			if (entry.getValue() != null && op2payload != null) {
+				if (!entry.getValue().isEquivalent(op2payload)) {
+					return false;
+				}
+			}
+			else if (entry.getValue() != null || op2payload != null) {
+				return false;
+			}
+		}
+		if (callOtherOverride != null && obj.callOtherOverride != null) {
+			if (callOtherOverride.length != obj.callOtherOverride.length) {
+				return false;
+			}
+			for (int i = 0; i < callOtherOverride.length; ++i) {
+				if (!callOtherOverride[i].isEquivalent(obj.callOtherOverride[i])) {
+					return false;
+				}
+			}
+		}
+		else if (callOtherOverride == null && obj.callOtherOverride == null) {
+			// continue
+		}
+		else {
+			return false;
+		}
+
+		if (exePcodeMap.size() != obj.exePcodeMap.size()) {
+			return false;
+		}
+		for (Entry<String, InjectPayload> entry : exePcodeMap.entrySet()) {
+			InjectPayload op2payload = obj.exePcodeMap.get(entry.getKey());
+			if (!entry.getValue().isEquivalent(op2payload)) {
+				return false;
+			}
+		}
+		if (programPayload != null && obj.programPayload != null) {
+			if (programPayload.length != obj.programPayload.length) {
+				return false;
+			}
+			for (int i = 0; i < programPayload.length; ++i) {
+				if (!programPayload[i].isEquivalent(obj.programPayload[i])) {
+					return false;
+				}
+			}
+		}
+		else if (programPayload == null && obj.programPayload == null) {
+			// continue
+		}
+		else {
 			return false;
 		}
 		return true;
 	}
-
-	@Override
-	public int hashCode() {
-		int hash = 111;
-		for (InjectPayload payload : callFixupMap.values()) {
-			hash = 79 * hash + payload.hashCode();
-		}
-		for (InjectPayload payload : callMechFixupMap.values()) {
-			hash = 79 * hash + payload.hashCode();
-		}
-		for (InjectPayload payload : callOtherFixupMap.values()) {
-			hash = 79 * hash + payload.hashCode();
-		}
-		for (InjectPayload payload : exePcodeMap.values()) {
-			hash = 79 * hash + payload.hashCode();
-		}
-		if (programPayload != null) {
-			for (InjectPayloadSleigh payload : programPayload) {
-				hash = 79 * hash + payload.hashCode();
-			}
-		}
-		if (callOtherOverride != null) {
-			for (InjectPayload payload : callOtherOverride) {
-				hash = 79 * hash + payload.hashCode();
-			}
-		}
-		return hash;
-	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/PrototypeModel.java

@@ -617,59 +617,60 @@ public class PrototypeModel {
 		return inputParams.getPotentialRegisterStorage(prog);
 	}
 
-	@Override
-	public boolean equals(Object obj) {
-		PrototypeModel op2 = (PrototypeModel) obj;
-		if (!name.equals(op2.name)) {
+	/**
+	 * Determine if this PrototypeModel is equivalent to another instance
+	 * @param obj is the other instance
+	 * @return true if they are equivalent
+	 */
+	public boolean isEquivalent(PrototypeModel obj) {
+		if (getClass() != obj.getClass()) {
 			return false;
 		}
-		if (extrapop != op2.extrapop || stackshift != op2.stackshift) {
+		if (!name.equals(obj.name)) {
 			return false;
 		}
-		if (genericCallingConvention != op2.genericCallingConvention) {
+		if (extrapop != obj.extrapop || stackshift != obj.stackshift) {
 			return false;
 		}
-		if (hasThis != op2.hasThis || isConstruct != op2.isConstruct) {
+		if (genericCallingConvention != obj.genericCallingConvention) {
 			return false;
 		}
-		if (hasUponEntry != op2.hasUponEntry || hasUponReturn != op2.hasUponReturn) {
+		if (hasThis != obj.hasThis || isConstruct != obj.isConstruct) {
 			return false;
 		}
-		if (inputListType != op2.inputListType) {
+		if (hasUponEntry != obj.hasUponEntry || hasUponReturn != obj.hasUponReturn) {
 			return false;
 		}
-		if (!inputParams.equals(op2.inputParams)) {
+		if (inputListType != obj.inputListType) {
 			return false;
 		}
-		if (!outputParams.equals(op2.outputParams)) {
+		if (!inputParams.isEquivalent(obj.inputParams)) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(unaffected, op2.unaffected)) {
+		if (!outputParams.isEquivalent(obj.outputParams)) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(killedbycall, op2.killedbycall)) {
+		if (!SystemUtilities.isArrayEqual(unaffected, obj.unaffected)) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(likelytrash, op2.likelytrash)) {
+		if (!SystemUtilities.isArrayEqual(killedbycall, obj.killedbycall)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(localRange, op2.localRange)) {
+		if (!SystemUtilities.isArrayEqual(likelytrash, obj.likelytrash)) {
 			return false;
 		}
-		if (!SystemUtilities.isEqual(paramRange, op2.paramRange)) {
+		if (!SystemUtilities.isEqual(localRange, obj.localRange)) {
 			return false;
 		}
-		if (!SystemUtilities.isArrayEqual(returnaddress, op2.returnaddress)) {
+		if (!SystemUtilities.isEqual(paramRange, obj.paramRange)) {
+			return false;
+		}
+		if (!SystemUtilities.isArrayEqual(returnaddress, obj.returnaddress)) {
 			return false;
 		}
 		return true;
 	}
 
-	@Override
-	public int hashCode() {
-		return name.hashCode();
-	}
-
 	@Override
 	public String toString() {
 		return getName();

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/PrototypeModelMerged.java

@@ -20,7 +20,6 @@ import java.util.*;
 import ghidra.app.plugin.processors.sleigh.SleighException;
 import ghidra.program.model.address.Address;
 import ghidra.program.model.listing.Parameter;
-import ghidra.util.SystemUtilities;
 import ghidra.util.xml.SpecXmlUtils;
 import ghidra.xml.*;
 
@@ -215,20 +214,19 @@ public class PrototypeModelMerged extends PrototypeModel {
 	}
 
 	@Override
-	public boolean equals(Object obj) {
-		PrototypeModelMerged op2 = (PrototypeModelMerged) obj;
-		if (!name.equals(op2.name)) {
+	public boolean isEquivalent(PrototypeModel obj) {
+		if (getClass() != obj.getClass()) {
 			return false;
 		}
-		return SystemUtilities.isArrayEqual(modellist, op2.modellist);
+		PrototypeModelMerged op2 = (PrototypeModelMerged) obj;
+		if (modellist.length != op2.modellist.length) {
+			return false;
 		}
-
-	@Override
-	public int hashCode() {
-		int hash = name.hashCode();
-		for (PrototypeModel model : modellist) {
-			hash = 79 * hash + model.hashCode();
-		}
-		return hash;
+		for (int i = 0; i < modellist.length; ++i) {
+			if (!modellist[i].getName().equals(op2.modellist[i].getName())) {
+				return false;
+			}
+		}
+		return true;
 	}
 }

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/util/LanguageTranslatorAdapter.java

@@ -679,4 +679,14 @@ class TemporaryCompilerSpec implements CompilerSpec {
 	public PcodeInjectLibrary getPcodeInjectLibrary() {
 		return newCompilerSpec.getPcodeInjectLibrary();
 	}
+
+	@Override
+	public void saveXml(StringBuilder buffer) {
+		throw new UnsupportedOperationException();
+	}
+
+	@Override
+	public boolean isEquivalent(CompilerSpec obj) {
+		return (this == obj);
+	}
 }

Ghidra/Processors/Dalvik/src/main/java/ghidra/dalvik/dex/inject/InjectPayloadDexParameters.java

@@ -201,12 +201,17 @@ public class InjectPayloadDexParameters implements InjectPayload {
 	}
 
 	@Override
-	public boolean equals(Object obj) {
-		return (obj instanceof InjectPayloadDexParameters);		// All instances are equal
+	public boolean isEquivalent(InjectPayload obj) {
+		if (getClass() != obj.getClass()) {
+			return false;
 		}
-
-	@Override
-	public int hashCode() {
-		return 123474219;		// All instances are equal
+		InjectPayloadDexParameters op2 = (InjectPayloadDexParameters) obj;
+		if (!name.equals(op2.name)) {
+			return false;
+		}
+		if (!sourceName.equals(op2.sourceName)) {
+			return false;
+		}
+		return true;
 	}
 }

Ghidra/Processors/JVM/src/main/java/ghidra/app/util/pcodeInject/InjectPayloadJava.java

@@ -21,6 +21,7 @@ import ghidra.app.plugin.processors.sleigh.SleighLanguage;
 import ghidra.javaclass.format.ClassFileAnalysisState;
 import ghidra.javaclass.format.ClassFileJava;
 import ghidra.javaclass.format.constantpool.AbstractConstantPoolInfoJava;
+import ghidra.program.model.lang.InjectPayload;
 import ghidra.program.model.lang.InjectPayloadCallother;
 import ghidra.program.model.listing.Program;
 
@@ -51,4 +52,16 @@ public abstract class InjectPayloadJava extends InjectPayloadCallother {
 		ClassFileJava classFile = analysisState.getClassFile();
 		return classFile.getConstantPool();
 	}
+
+	@Override
+	public boolean isEquivalent(InjectPayload obj) {
+		if (this.getClass() != obj.getClass()) {
+			return false;
+		}
+		InjectPayloadJava op2 = (InjectPayloadJava) obj;
+		if (uniqueBase != op2.uniqueBase) {
+			return false;
+		}
+		return super.isEquivalent(obj);
+	}
 }

Ghidra/Processors/JVM/src/main/java/ghidra/app/util/pcodeInject/InjectPayloadJavaParameters.java

@@ -110,6 +110,15 @@ public class InjectPayloadJavaParameters implements InjectPayload {
 		return false;
 	}
 
+	@Override
+	public void saveXml(StringBuilder buffer) {
+		// Provide a minimal tag so decompiler can call-back
+		buffer.append("<pcode");
+		SpecXmlUtils.encodeStringAttribute(buffer, "inject", "uponentry");
+		SpecXmlUtils.encodeBooleanAttribute(buffer, "dynamic", true);
+		buffer.append("/>\n");
+	}
+
 	@Override
 	public void inject(InjectContext context, PcodeEmit emit) {
 		//not used
@@ -203,15 +212,6 @@ public class InjectPayloadJavaParameters implements InjectPayload {
 		return false;
 	}
 
-	@Override
-	public void saveXml(StringBuilder buffer) {
-		// Provide a minimal tag so decompiler can call-back
-		buffer.append("<pcode");
-		SpecXmlUtils.encodeStringAttribute(buffer, "inject", "uponentry");
-		SpecXmlUtils.encodeBooleanAttribute(buffer, "dynamic", true);
-		buffer.append("/>\n");
-	}
-
 	@Override
 	public void restoreXml(XmlPullParser parser, SleighLanguage language) throws XmlParseException {
 		XmlElement el = parser.start();
@@ -227,12 +227,22 @@ public class InjectPayloadJavaParameters implements InjectPayload {
 	}
 
 	@Override
-	public boolean equals(Object obj) {
-		return (obj instanceof InjectPayloadJavaParameters);		// All instances are equal
+	public boolean isEquivalent(InjectPayload obj) {
+		if (getClass() != obj.getClass()) {
+			return false;
 		}
-
-	@Override
-	public int hashCode() {
-		return 123474217;		// All instances are equal
+		InjectPayloadJavaParameters op2 = (InjectPayloadJavaParameters) obj;
+		if (!name.equals(op2.name)) {
+			return false;
+		}
+		if (!sourceName.equals(op2.sourceName)) {
+			return false;
+		}
+		// Compare temp4 to determine if the uniqBase passed in was equivalent.
+		// Otherwise we don't need to compare the other internal Varnodes
+		if (!temp4.equals(op2.temp4)) {
+			return false;
+		}
+		return true;
 	}
 }