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cmd/evm can't invoke post-merge opcodes correctly #29782

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Alleysira opened this issue May 15, 2024 · 3 comments · Fixed by #29799
Closed

cmd/evm can't invoke post-merge opcodes correctly #29782

Alleysira opened this issue May 15, 2024 · 3 comments · Fixed by #29799
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type:bug

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@Alleysira
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System information

Geth version: geth & Tools 1.14.4
CL client & version: Nope
OS & Version: Linux
Commit hash : d2f00cb

Expected behaviour

cmd/evm should support opcodes introduced in shanghai fork.

Actual behaviour

cmd/evm raised "error":"invalid opcode: PUSH0" in the json file.

Steps to reproduce the behaviour

Hello guys, I think the problem that cmd/evm can't support for post-merge opcodes(like PUSH0) at #28690 is not fixed yet.

  1. I downloaded several recent binary archives of geth & Tools 1.14.0, 1.14.2 1.14.4 from https://geth.ethereum.org/downloads
  2. Create a genesis.json file that enables shanghai opcodes by setting shanghaiTime=0
{
    "config": {
      "chainId": 9599,
      "homesteadBlock": 0,
      "eip150Block": 0,
      "eip155Block": 0,
      "eip158Block": 0,
      "byzantiumBlock": 0,
      "constantinopleBlock": 0,
      "petersburgBlock": 0,
      "istanbulBlock": 0,
      "berlinBlock": 0,
      "londonBlock": 0,
      "shanghaiBlock": 0,
      "shanghaiTime":0
    },
    "alloc": {
      "0x1c7cd2d37ffd63856a5bd56a9af1643f2bcf545f": {
        "balance": "0xffffffffffffffffffffffffffffffffffffffff"
      }
    },
    "coinbase": "0x000000000000000000000000000000000000abcd",
    "difficulty": "0x0",
    "extraData": "",
    "gasLimit": "0xffffff",
    "nonce": "0x0000000000000042",
    "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "timestamp": "0x00"
}
  1. Run the evm directly with the commands:
./evm --debug --verbosity 1 --gas 0xffffff --nomemory=false --json --sender 0x1c7cd2d37ffd63856a5bd56a9af1643f2bcf545f --receiver 0x000000000000000000000000636F6E7472616374 --code 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 --input b349cb320000000000000000000000009957acb0b63afca54257b634bc605ec639f8165c --prestate ./genesis.json run

Backtrace

The json outputs are

{"pc":0,"op":96,"gas":"0xffffff","gasCost":"0x3","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":2,"op":96,"gas":"0xfffffc","gasCost":"0x3","memSize":0,"stack":["0x80"],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":4,"op":82,"gas":"0xfffff9","gasCost":"0xc","memSize":0,"stack":["0x80","0x40"],"depth":1,"refund":0,"opName":"MSTORE"}
{"pc":5,"op":52,"gas":"0xffffed","gasCost":"0x2","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":[],"depth":1,"refund":0,"opName":"CALLVALUE"}
{"pc":6,"op":128,"gas":"0xffffeb","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0"],"depth":1,"refund":0,"opName":"DUP1"}
{"pc":7,"op":21,"gas":"0xffffe8","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0","0x0"],"depth":1,"refund":0,"opName":"ISZERO"}
{"pc":8,"op":96,"gas":"0xffffe5","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0","0x1"],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":10,"op":87,"gas":"0xffffe2","gasCost":"0xa","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0","0x1","0xe"],"depth":1,"refund":0,"opName":"JUMPI"}
{"pc":14,"op":91,"gas":"0xffffd8","gasCost":"0x1","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0"],"depth":1,"refund":0,"opName":"JUMPDEST"}
{"pc":15,"op":80,"gas":"0xffffd7","gasCost":"0x2","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0"],"depth":1,"refund":0,"opName":"POP"}
{"pc":16,"op":96,"gas":"0xffffd5","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":[],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":18,"op":54,"gas":"0xffffd2","gasCost":"0x2","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x4"],"depth":1,"refund":0,"opName":"CALLDATASIZE"}
{"pc":19,"op":16,"gas":"0xffffd0","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x4","0x24"],"depth":1,"refund":0,"opName":"LT"}
{"pc":20,"op":96,"gas":"0xffffcd","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0"],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":22,"op":87,"gas":"0xffffca","gasCost":"0xa","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0","0x26"],"depth":1,"refund":0,"opName":"JUMPI"}
{"pc":23,"op":95,"gas":"0xffffc0","gasCost":"0x0","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":[],"depth":1,"refund":0,"opName":"PUSH0"}
{"pc":23,"op":95,"gas":"0xffffc0","gasCost":"0x0","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":[],"depth":1,"refund":0,"opName":"PUSH0","error":"invalid opcode: PUSH0"}
{"output":"","gasUsed":"0xffffff","error":"invalid opcode: PUSH0"}
#### LOGS ####

The same commands and genesis.json work fine in geth 1.13.4-stable-3f907d6a but fail in geth 1.14.0-stable-87246f3c. The expected output from geth 1.13.4 is

{"pc":0,"op":96,"gas":"0xffffff","gasCost":"0x3","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":2,"op":96,"gas":"0xfffffc","gasCost":"0x3","memSize":0,"stack":["0x80"],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":4,"op":82,"gas":"0xfffff9","gasCost":"0xc","memSize":0,"stack":["0x80","0x40"],"depth":1,"refund":0,"opName":"MSTORE"}
{"pc":5,"op":52,"gas":"0xffffed","gasCost":"0x2","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":[],"depth":1,"refund":0,"opName":"CALLVALUE"}
{"pc":6,"op":128,"gas":"0xffffeb","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0"],"depth":1,"refund":0,"opName":"DUP1"}
{"pc":7,"op":21,"gas":"0xffffe8","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0","0x0"],"depth":1,"refund":0,"opName":"ISZERO"}
{"pc":8,"op":96,"gas":"0xffffe5","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0","0x1"],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":10,"op":87,"gas":"0xffffe2","gasCost":"0xa","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0","0x1","0xe"],"depth":1,"refund":0,"opName":"JUMPI"}
{"pc":14,"op":91,"gas":"0xffffd8","gasCost":"0x1","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0"],"depth":1,"refund":0,"opName":"JUMPDEST"}
{"pc":15,"op":80,"gas":"0xffffd7","gasCost":"0x2","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0"],"depth":1,"refund":0,"opName":"POP"}
{"pc":16,"op":96,"gas":"0xffffd5","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":[],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":18,"op":54,"gas":"0xffffd2","gasCost":"0x2","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x4"],"depth":1,"refund":0,"opName":"CALLDATASIZE"}
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{"pc":20,"op":96,"gas":"0xffffcd","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0"],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":22,"op":87,"gas":"0xffffca","gasCost":"0xa","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0x0","0x26"],"depth":1,"refund":0,"opName":"JUMPI"}
{"pc":23,"op":95,"gas":"0xffffc0","gasCost":"0x2","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":[],"depth":1,"refund":0,"opName":"PUSH0"}
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{"pc":28,"op":128,"gas":"0xffffb5","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0xb349cb32"],"depth":1,"refund":0,"opName":"DUP1"}
{"pc":29,"op":99,"gas":"0xffffb2","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0xb349cb32","0xb349cb32"],"depth":1,"refund":0,"opName":"PUSH4"}
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{"pc":42,"op":91,"gas":"0xffff9f","gasCost":"0x1","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0xb349cb32"],"depth":1,"refund":0,"opName":"JUMPDEST"}
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{"pc":180,"op":96,"gas":"0xffff70","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0xb349cb32","0x40","0x3c","0x24","0x4","0x0"],"depth":1,"refund":0,"opName":"PUSH1"}
{"pc":182,"op":130,"gas":"0xffff6d","gasCost":"0x3","memory":"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080","memSize":96,"stack":["0xb349cb32","0x40","0x3c","0x24","0x4","0x0","0x20"],"depth":1,"refund":0,"opName":"DUP3"}
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{"output":"","gasUsed":"0x1f59"}

I want to know whether this is a bug or the way to set evm genesis has changed. As I'm fuzzing evm implementations, to let geth/evm support new opcodes is important to me.
Thanks for your time :)
@Alleysira Alleysira mentioned this issue May 15, 2024
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@holiman
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holiman commented May 15, 2024

Minimal repro

$ go run ./cmd/evm --nomemory=false --json --code 5f run   
{"pc":0,"op":95,"gas":"0x2540be400","gasCost":"0x0","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"PUSH0"}
{"pc":0,"op":95,"gas":"0x2540be400","gasCost":"0x0","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"PUSH0","error":"invalid opcode: PUSH0"}
{"output":"","gasUsed":"0x2540be400","error":"invalid opcode: PUSH0"}

The problem seems to be that it chooses IsMerge to false, because it doesn't have any randao input.

As I'm fuzzing evm implementations, to let geth/evm support new opcodes is important to me.

I'd advise you to use evm statetest. It's what I use in goevmlab, https://github.com/holiman/goevmlab/tree/master/evms , e.g geth https://github.com/holiman/goevmlab/blob/master/evms/geth.go#L91 , besu https://github.com/holiman/goevmlab/blob/master/evms/besu.go#L67 etc.

@Alleysira
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Thanks for your quick reply! @holiman. I'll get to learn about how goevmlab works.

@holiman
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holiman commented May 15, 2024

I'll get to learn about how goevmlab works.

I'm not saying you have to use goevmlab (although you probably should :) ) , but for differential fuzzing, statetest is the reference input format.

@holiman holiman reopened this May 17, 2024
@holiman holiman mentioned this issue May 17, 2024
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core/vm/runtime: set random to enable merge-opcodes holiman/go-ethereum
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@holiman @Alleysira