EOF Spec Updates (#6431)

Update a few EOF features based on updated spec
* Add a prague reference test target
* Run evmtool from prestate when no code specified
* RETF and dangling immediate arg fixes

Signed-off-by: Danno Ferrin <danno.ferrin@swirldslabs.com>

ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/EvmToolCommand.java

@@ -371,6 +371,9 @@ public class EvmToolCommand implements Runnable {
       long txGas = gas - intrinsicGasCost - accessListCost;
 
       final EVM evm = protocolSpec.getEvm();
+      if (codeBytes.isEmpty()) {
+        codeBytes = component.getWorldState().get(receiver).getCode();
+      }
       Code code = evm.getCode(Hash.hash(codeBytes), codeBytes);
       if (!code.isValid()) {
         out.println(((CodeInvalid) code).getInvalidReason());

ethereum/referencetests/src/main/java/org/hyperledger/besu/ethereum/referencetests/ReferenceTestProtocolSchedules.java

@@ -79,7 +79,7 @@ public class ReferenceTestProtocolSchedules {
         createSchedule(genesisStub.clone().shanghaiTime(0).cancunTime(15000)));
     builder.put("Cancun", createSchedule(genesisStub.clone().cancunTime(0)));
     // TODO remove this after execution-test-specs finalize
-    builder.put("Shanghai+6780", createSchedule(genesisStub.clone().cancunTime(0)));
+    builder.put("Prague", createSchedule(genesisStub.clone().futureEipsTime(0)));
     builder.put("Future_EIPs", createSchedule(genesisStub.clone().futureEipsTime(0)));
     builder.put("Experimental_EIPs", createSchedule(genesisStub.clone().experimentalEipsTime(0)));
     return new ReferenceTestProtocolSchedules(builder.build());

evm/src/main/java/org/hyperledger/besu/evm/code/CodeV1Validation.java

@@ -779,6 +779,11 @@ public final class CodeV1Validation {
           }
 
           currentPC += pcAdvance;
+          if (currentPC >= stackHeights.length) {
+            return String.format(
+                "Dangling immediate argument for opcode 0x%x at PC %d in code section %d.",
+                currentStackHeight, codeLength - pcAdvance, codeSectionToValidate);
+          }
           stackHeights[currentPC] = currentStackHeight;
           unusedBytes -= pcAdvance;
         }

evm/src/main/java/org/hyperledger/besu/evm/code/EOFLayout.java

@@ -158,7 +158,7 @@ public class EOFLayout {
     if (typeData[codeSectionCount - 1][2] == -1) {
       return invalidLayout(container, version, "Incomplete type section");
     }
-    if (typeData[0][0] != 0 || typeData[0][1] != 0) {
+    if (typeData[0][0] != 0 || (typeData[0][1] & 0x7f) != 0) {
       return invalidLayout(
           container, version, "Code section does not have zero inputs and outputs");
     }
@@ -182,7 +182,7 @@ public class EOFLayout {
             version,
             "Type data input stack too large - 0x" + Integer.toHexString(typeData[i][0]));
       }
-      if (typeData[i][1] > 0x7f) {
+      if (typeData[i][1] > 0x80) {
         return invalidLayout(
             container,
             version,

evm/src/main/java/org/hyperledger/besu/evm/operation/AbstractCreateOperation.java

@@ -141,7 +141,6 @@ public abstract class AbstractCreateOperation extends AbstractOperation {
     final Wei value = Wei.wrap(parent.getStackItem(0));
 
     final Address contractAddress = targetContractAddress(parent);
-    parent.addCreate(contractAddress);
 
     final long childGasStipend =
         gasCalculator().gasAvailableForChildCreate(parent.getRemainingGas());

evm/src/main/java/org/hyperledger/besu/evm/operation/RetFOperation.java

@@ -24,7 +24,7 @@ public class RetFOperation extends AbstractOperation {
   /** The Opcode. */
   public static final int OPCODE = 0xe4;
   /** The Ret F success. */
-  static final OperationResult retfSuccess = new OperationResult(4, null);
+  static final OperationResult retfSuccess = new OperationResult(3, null);
 
   /**
    * Instantiates a new Ret F operation.

evm/src/main/java/org/hyperledger/besu/evm/processor/ContractCreationProcessor.java

@@ -122,6 +122,7 @@ public class ContractCreationProcessor extends AbstractMessageProcessor {
         operationTracer.traceAccountCreationResult(
             frame, Optional.of(ExceptionalHaltReason.INSUFFICIENT_GAS));
       } else {
+        frame.addCreate(contractAddress);
         contract.incrementBalance(frame.getValue());
         contract.setNonce(initialContractNonce);
         contract.clearStorage();

evm/src/main/java/org/hyperledger/besu/evm/tracing/StandardJsonTracer.java

@@ -126,9 +126,7 @@ public class StandardJsonTracer implements OperationTracer {
     for (int i = messageFrame.stackSize() - 1; i >= 0; i--) {
       stack.add("\"" + shortBytes(messageFrame.getStackItem(i)) + "\"");
     }
-    pc =
-        messageFrame.getPC()
-            - messageFrame.getCode().getCodeSection(messageFrame.getSection()).getEntryPoint();
+    pc = messageFrame.getPC() - messageFrame.getCode().getCodeSection(0).getEntryPoint();
     section = messageFrame.getSection();
     gas = shortNumber(messageFrame.getRemainingGas());
     memorySize = messageFrame.memoryWordSize() * 32;
@@ -171,6 +169,9 @@ public class StandardJsonTracer implements OperationTracer {
   public void tracePostExecution(
       final MessageFrame messageFrame, final Operation.OperationResult executeResult) {
     final Operation currentOp = messageFrame.getCurrentOperation();
+    if (currentOp.isVirtualOperation()) {
+      return;
+    }
     final int opcode = currentOp.getOpcode();
     final Bytes returnData = messageFrame.getReturnData();
 

evm/src/test/java/org/hyperledger/besu/evm/code/EOFLayoutTest.java

@@ -276,15 +276,15 @@ public class EOFLayoutTest {
             1
           },
           {
-            "EF0001 010010 0200040001000200020002 030000 00 00000000 80000000 00010000 02030000 FE 5000 3000 8000",
+            "EF0001 010010 0200040001000200020002 030000 00 00000000 F0000000 00010000 02030000 FE 5000 3000 8000",
             "inputs too large",
-            "Type data input stack too large - 0x80",
+            "Type data input stack too large - 0xf0",
             1
           },
           {
-            "EF0001 010010 0200040001000200020002 030000 00 00000000 01000000 00800000 02030000 FE 5000 3000 8000",
+            "EF0001 010010 0200040001000200020002 030000 00 00000000 01000000 00F00000 02030000 FE 5000 3000 8000",
             "outputs too large",
-            "Type data output stack too large - 0x80",
+            "Type data output stack too large - 0xf0",
             1
           },
           {