unify Nimbus 'call' and EVMC 'call'
This commit is contained in:
andri lim
zah
parent
0686bb4b6e
commit
7c9f6b48d6
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@ -615,6 +615,7 @@ template genCreate(callName: untyped, opCode: Op): untyped =
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if res.status_code == EVMC_SUCCESS:
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c.stack.top(res.create_address)
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# TODO: a good candidate for destructor
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if not res.release.isNil:
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res.release(res)
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else:
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@ -760,126 +761,69 @@ template genCall(callName: untyped, opCode: Op): untyped =
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c.gasMeter.returnGas(childGasLimit)
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return
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var childMsg = Message(
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kind: callKind,
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depth: c.msg.depth + 1,
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gas: childGasLimit,
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sender: sender,
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contractAddress: contractAddress,
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codeAddress: destination,
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value: value,
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data: c.memory.read(memInPos, memInLen),
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flags: flags)
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when evmc_enabled:
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let msg = nimbus_message(
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kind: callKind.evmc_call_kind,
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depth: (c.msg.depth + 1).int32,
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gas: childGasLimit,
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sender: sender,
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destination: destination,
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input_data: c.memory.readPtr(memInPos),
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input_size: memInLen.uint,
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value: toEvmc(value),
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flags: flags.uint32
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)
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var child = newComputation(c.vmState, childMsg)
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child.execCall()
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var res = c.host.call(msg)
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if res.output_size.int > 0:
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c.returnData = newSeq[byte](res.output_size.int)
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copyMem(c.returnData[0].addr, res.output_data, c.returnData.len)
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if not child.shouldBurnGas:
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c.gasMeter.returnGas(child.gasMeter.gasRemaining)
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let actualOutputSize = min(memOutLen, c.returnData.len)
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if actualOutputSize > 0:
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c.memory.write(memOutPos,
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c.returnData.toOpenArray(0, actualOutputSize - 1))
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if child.isSuccess:
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c.merge(child)
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c.stack.top(1)
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c.gasMeter.returnGas(res.gas_left)
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c.returnData = child.output
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let actualOutputSize = min(memOutLen, child.output.len)
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if actualOutputSize > 0:
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c.memory.write(memOutPos,
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child.output.toOpenArray(0, actualOutputSize - 1))
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if res.status_code == EVMC_SUCCESS:
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c.stack.top(1)
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template genCallEvmc(callName: untyped, opCode: Op): untyped =
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op callName, inline = false:
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when opCode == Call:
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if emvcStatic == c.msg.flags and c.stack[^3, Uint256] > 0.u256:
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raise newException(StaticContextError, "Cannot modify state while inside of a STATICCALL context")
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# TODO: a good candidate for destructor
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if not res.release.isNil:
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res.release(res)
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else:
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let msg = Message(
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kind: callKind,
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depth: c.msg.depth + 1,
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gas: childGasLimit,
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sender: sender,
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contractAddress: contractAddress,
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codeAddress: destination,
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value: value,
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data: c.memory.read(memInPos, memInLen),
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flags: flags)
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let (gas, value, destination, sender, callKind,
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memInPos, memInLen, memOutPos, memOutLen, flags) = `callName Params`(c)
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var child = newComputation(c.vmState, msg)
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child.execCall()
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push: 0
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if not child.shouldBurnGas:
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c.gasMeter.returnGas(child.gasMeter.gasRemaining)
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let (memOffset, memLength) = if calcMemSize(memInPos, memInLen) > calcMemSize(memOutPos, memOutLen):
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(memInPos, memInLen)
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else:
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(memOutPos, memOutLen)
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if child.isSuccess:
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c.merge(child)
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c.stack.top(1)
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let contractAddress = when opCode in {Call, StaticCall}: destination else: c.msg.contractAddress
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let (childGasFee, childGasLimit) = c.gasCosts[opCode].c_handler(
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value,
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GasParams(kind: opCode,
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c_isNewAccount: not c.accountExists(contractAddress),
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c_gasBalance: c.gasMeter.gasRemaining,
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c_contractGas: gas,
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c_currentMemSize: c.memory.len,
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c_memOffset: memOffset,
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c_memLength: memLength
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))
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c.returnData = child.output
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let actualOutputSize = min(memOutLen, child.output.len)
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if actualOutputSize > 0:
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c.memory.write(memOutPos,
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child.output.toOpenArray(0, actualOutputSize - 1))
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if childGasFee >= 0:
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c.gasMeter.consumeGas(childGasFee, reason = $opCode)
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c.returnData.setLen(0)
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if c.msg.depth >= MaxCallDepth:
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debug "Computation Failure", reason = "Stack too deep", maximumDepth = MaxCallDepth, depth = c.msg.depth
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# return unused gas
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c.gasMeter.returnGas(childGasLimit)
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return
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if childGasFee < 0 and childGasLimit <= 0:
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raise newException(OutOfGas, "Gas not enough to perform calculation (" & callName.astToStr & ")")
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c.memory.extend(memInPos, memInLen)
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c.memory.extend(memOutPos, memOutLen)
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when opCode in {CallCode, Call}:
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let senderBalance = c.getBalance(sender)
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if senderBalance < value:
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debug "Insufficient funds", available = senderBalance, needed = c.msg.value
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# return unused gas
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c.gasMeter.returnGas(childGasLimit)
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return
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let msg = nimbus_message(
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kind: callKind.evmc_call_kind,
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depth: (c.msg.depth + 1).int32,
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gas: childGasLimit,
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sender: sender,
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destination: destination,
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input_data: c.memory.readPtr(memInPos),
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input_size: memInLen.uint,
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value: toEvmc(value),
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flags: flags.uint32
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)
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var res = c.host.call(msg)
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if res.output_size.int > 0:
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c.returnData = newSeq[byte](res.output_size.int)
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copyMem(c.returnData[0].addr, res.output_data, c.returnData.len)
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let actualOutputSize = min(memOutLen, c.returnData.len)
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if actualOutputSize > 0:
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c.memory.write(memOutPos,
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c.returnData.toOpenArray(0, actualOutputSize - 1))
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c.gasMeter.returnGas(res.gas_left)
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if res.status_code == EVMC_SUCCESS:
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c.stack.top(1)
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if not res.release.isNil:
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res.release(res)
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when evmc_enabled:
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genCallEvmc(call, Call)
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genCallEvmc(callCode, CallCode)
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genCallEvmc(delegateCall, DelegateCall)
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genCallEvmc(staticCall, StaticCall)
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else:
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genCall(call, Call)
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genCall(callCode, CallCode)
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genCall(delegateCall, DelegateCall)
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genCall(staticCall, StaticCall)
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genCall(call, Call)
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genCall(callCode, CallCode)
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genCall(delegateCall, DelegateCall)
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genCall(staticCall, StaticCall)
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op returnOp, inline = false, startPos, size:
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## 0xf3, Halt execution returning output data.
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