Merge commit 'da6cdaf63' into merge/geth-v1.13.6

core/vm/contracts_fuzz_test.go

@@ -0,0 +1,44 @@
+// Copyright 2023 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package vm
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+)
+
+func FuzzPrecompiledContracts(f *testing.F) {
+	// Create list of addresses
+	var addrs []common.Address
+	for k := range allPrecompiles {
+		addrs = append(addrs, k)
+	}
+	f.Fuzz(func(t *testing.T, addr uint8, input []byte) {
+		a := addrs[int(addr)%len(addrs)]
+		p := allPrecompiles[a]
+		gas := p.RequiredGas(input)
+		if gas > 10_000_000 {
+			return
+		}
+		inWant := string(input)
+		RunPrecompiledContract(p, input, gas)
+		if inHave := string(input); inWant != inHave {
+			t.Errorf("Precompiled %v modified input data", a)
+		}
+	})
+}

core/vm/opcodes.go

@@ -25,7 +25,7 @@ type OpCode byte
 
 // IsPush specifies if an opcode is a PUSH opcode.
 func (op OpCode) IsPush() bool {
-	return PUSH1 <= op && op <= PUSH32
+	return PUSH0 <= op && op <= PUSH32
 }
 
 // 0x0 range - arithmetic ops.

core/vm/runtime/runtime_fuzz_test.go

@@ -0,0 +1,29 @@
+// Copyright 2023 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package runtime
+
+import (
+	"testing"
+)
+
+func FuzzVmRuntime(f *testing.F) {
+	f.Fuzz(func(t *testing.T, code, input []byte) {
+		Execute(code, input, &Config{
+			GasLimit: 12000000,
+		})
+	})
+}

core/vm/runtime/runtime_test.go

@@ -671,7 +671,7 @@ func TestColdAccountAccessCost(t *testing.T) {
 			for ii, op := range tracer.StructLogs() {
 				t.Logf("%d: %v %d", ii, op.OpName(), op.GasCost)
 			}
-			t.Fatalf("tescase %d, gas report wrong, step %d, have %d want %d", i, tc.step, have, want)
+			t.Fatalf("testcase %d, gas report wrong, step %d, have %d want %d", i, tc.step, have, want)
 		}
 	}
 }