mirror of
https://github.com/status-im/nimbus-eth1.git
synced 2025-01-12 21:34:33 +00:00
4b5eada322
* move forks constants, rename errors * Move vm/utils to vm/interpreter/utils * initial opcodes refactoring * Add refactored Comparison & Bitwise Logic Operations * Add sha3 and address, simplify macro, support pop 0 * balance, origin, caller, callValue * fix gas copy opcodes gas costs, add callDataLoad/Size/Copy, CodeSize/Copy and gas price opcode * Update with 30s, 40s, 50s opcodes + impl of balance + stack improvement * add push, dup, swap, log, create and call operations * finish opcode implementation * Add the new dispatching logic * Pass the opcode test * Make test_vm_json compile * halt execution without exceptions for Return, Revert, selfdestruct (fix #62) * Properly catch and recover from EVM exceptions (stack underflow ...) * Fix byte op * Fix jump regressions * Update for latest devel, don't import old dispatch code as quasiBoolean macro is broken by latest devel * Fix sha3 regression on empty memory slice and until end of range slice * Fix padding / range error on expXY_success (gas computation left) * update logging procs * Add tracing - expXY_success is not a regression, sload stub was accidentally passing the test * Reuse the same stub as OO implementation * Delete previous opcode implementation * Delete object oriented fork code * Delete exceptions that were used as control flows * delete base.nim 🔥, yet another OO remnants * Delete opcode table * Enable omputed gotos and compile-time gas fees * Revert const gasCosts -> generates SIGSEGV * inline push, swap and dup opcodes * loggers are now template again, why does this pass new tests? * Trigger CI rebuild after rocksdb fix https://github.com/status-im/nim-rocksdb/pull/5 * Address review comment on "push" + VMTests in debug mode (not release) * Address review comment: don't tag fork by default, make opcode impl grepable * Static compilation fixes after rebasing * fix the initialization of the VM database * add a missing import * Deactivate balance and sload test following #59 * Reactivate stack check (deactivated in #59, necessary to pass tests) * Merge remaining opcodes implementation from #59 * Merge callDataLoad and codeCopy fixes, todo simplify see #67
114 lines
4.4 KiB
Nim
114 lines
4.4 KiB
Nim
# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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unittest, tables, parseutils,
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eth_trie/[types, memdb], eth_common/eth_types,
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../nimbus/[constants, vm_types, logging, vm_state],
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../nimbus/vm/interpreter,
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../nimbus/utils/header,
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../nimbus/db/[db_chain, state_db, backends/memory_backend],
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./test_helpers
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from eth_common import GasInt
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proc testCode(code: string, initialGas: GasInt, blockNum: UInt256): BaseComputation =
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let header = BlockHeader(blockNumber: blockNum)
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var memDb = newMemDB()
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var vmState = newBaseVMState(header, newBaseChainDB(trieDB memDb))
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# coinbase: "",
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# difficulty: fixture{"env"}{"currentDifficulty"}.getHexadecimalInt.u256,
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# blockNumber: fixture{"env"}{"currentNumber"}.getHexadecimalInt.u256,
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# gasLimit: fixture{"env"}{"currentGasLimit"}.getHexadecimalInt.u256,
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# timestamp: fixture{"env"}{"currentTimestamp"}.getHexadecimalInt)
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let message = newMessage(
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to=ZERO_ADDRESS, #fixture{"exec"}{"address"}.getStr,
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sender=ZERO_ADDRESS, #fixture{"exec"}{"caller"}.getStr,
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value=0.u256,
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data = @[],
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code=code,
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gas=initial_gas,
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gasPrice=1) # What is this used for?
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# gasPrice=fixture{"exec"}{"gasPrice"}.getHexadecimalInt.u256,
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#options=newMessageOptions(origin=fixture{"exec"}{"origin"}.getStr))
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#echo fixture{"exec"}
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var c = newCodeStreamFromUnescaped(code)
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if DEBUG:
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c.displayDecompiled()
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result = newBaseComputation(vmState, blockNum, message)
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result.precompiles = initTable[string, Opcode]()
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result.executeOpcodes()
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suite "opcodes":
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test "add":
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var c = testCode(
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"0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01",
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100_000,
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0.u256
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)
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check(c.gasMeter.gasRemaining == 99_991)
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check(c.stack.peek == "115792089237316195423570985008687907853269984665640564039457584007913129639934".u256)
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# let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
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# let code = "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01600055".from_hex().unwrap();
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# let mut params = ActionParams::default();
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# params.address = address.clone();
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# params.gas = U256::from(100_000);
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# params.code = Some(Arc::new(code));
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# let mut ext = FakeExt::new();
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# let gas_left = {
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# let mut vm = factory.create(params.gas);
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# test_finalize(vm.exec(params, &mut ext)).unwrap()
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# };
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# assert_eq!(gas_left, U256::from(79_988));
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# assert_store(&ext, 0, "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe");
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# }
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# TODO balance and sload were previously stubbed. Test must be rewritten to initialize the DB properly
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# test "Frontier VM computation - pre-EIP150 gas cost properly applied":
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# block: # Using Balance (0x31)
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# var c = testCode(
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# "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff31",
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# 100_000,
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# 0.u256
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# )
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# check: c.gasMeter.gasRemaining == 100000 - 3 - 20 # Starting gas - push32 (verylow) - balance
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# block: # Using SLOAD (0x54)
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# var c = testCode(
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# "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff54",
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# 100_000,
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# 0.u256
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# )
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# check: c.gasMeter.gasRemaining == 100000 - 3 - 50 # Starting gas - push32 (verylow) - SLOAD
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# test "Tangerine VM computation - post-EIP150 gas cost properly applied":
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# block: # Using Balance (0x31)
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# var c = testCode(
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# "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff31",
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# 100_000,
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# 2_463_000.u256 # Tangerine block
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# )
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# check: c.gasMeter.gasRemaining == 100000 - 3 - 400 # Starting gas - push32 (verylow) - balance
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# block: # Using SLOAD (0x54)
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# var c = testCode(
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# "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff54",
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# 100_000,
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# 2_463_000.u256
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# )
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# check: c.gasMeter.gasRemaining == 100000 - 3 - 200 # Starting gas - push32 (verylow) - SLOAD
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