From fc6c692097a2be3288c7ce911ad7eed176ebb1d9 Mon Sep 17 00:00:00 2001
From: Daniel Liu <139250065@qq.com>
Date: Mon, 23 Feb 2026 09:50:38 +0800
Subject: [PATCH] fix(internal): process prague system calls in eth_simulate
 #31176 (#2069)

---
 internal/ethapi/simulate.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/internal/ethapi/simulate.go b/internal/ethapi/simulate.go
index 0653ac872c..e1dc6332a0 100644
--- a/internal/ethapi/simulate.go
+++ b/internal/ethapi/simulate.go
@@ -186,6 +186,9 @@ func (sim *simulator) processBlock(ctx context.Context, block *simBlock, header,
 	if precompiles != nil {
 		evm.SetPrecompiles(precompiles)
 	}
+	if sim.chainConfig.IsPrague(header.Number) {
+		core.ProcessParentBlockHash(header.ParentHash, evm)
+	}
 	for i, call := range block.Calls {
 		if err := ctx.Err(); err != nil {
 			return nil, nil, err