gaspersic/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

core,eth: implement tx-level hooks for tracers (#24510)

Browse Source 
* core,eth: add empty tx logger hooks

* core,eth: add initial and remaining gas to tx hooks

* store tx gasLimit in js tracer

* use gasLimit to compute intrinsic cost for js tracer

* re-use rules in transitiondb

* rm logs

* rm logs

* Mv some fields from Start to TxStart

* simplify sender lookup in prestate tracer

* mv env to TxStart

* Revert "mv env to TxStart"

This reverts commit 656939634b9aff19f55a1cd167345faf8b1ec310.

* Revert "simplify sender lookup in prestate tracer"

This reverts commit ab65bce48007cab99e68232e7aac2fe008338d50.

* Revert "Mv some fields from Start to TxStart"

This reverts commit aa50d3d9b2559addc80df966111ef5fb5d0c1b6b.

* fix intrinsic gas for prestate tracer

* add comments

* refactor

* fix test case

* simplify consumedGas calc in prestate tracer
This commit is contained in:
Sina Mahmoodi
2022-03-31 11:51:44 +02:00
committed by GitHub
parent da16d089c0
commit 3fd16af5a9
11 changed files with 83 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
eth/tracers/native/prestate.go
View File

@ -24,7 +24,6 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth/tracers"
@ -47,6 +46,7 @@ type prestateTracer struct {
prestate prestate
create bool
to common.Address
gasLimit uint64 // Amount of gas bought for the whole tx
interrupt uint32 // Atomic flag to signal execution interruption
reason error // Textual reason for the interruption
}
@ -63,14 +63,6 @@ func (t *prestateTracer) CaptureStart(env *vm.EVM, from common.Address, to commo
t.create = create
t.to = to
// Compute intrinsic gas
isHomestead := env.ChainConfig().IsHomestead(env.Context.BlockNumber)
isIstanbul := env.ChainConfig().IsIstanbul(env.Context.BlockNumber)
intrinsicGas, err := core.IntrinsicGas(input, nil, create, isHomestead, isIstanbul)
if err != nil {
return
}
t.lookupAccount(from)
t.lookupAccount(to)
@ -79,17 +71,11 @@ func (t *prestateTracer) CaptureStart(env *vm.EVM, from common.Address, to commo
toBal = new(big.Int).Sub(toBal, value)
t.prestate[to].Balance = hexutil.EncodeBig(toBal)
// The sender balance is after reducing: value, gasLimit, intrinsicGas.
// The sender balance is after reducing: value and gasLimit.
// We need to re-add them to get the pre-tx balance.
fromBal := hexutil.MustDecodeBig(t.prestate[from].Balance)
gasPrice := env.TxContext.GasPrice
consumedGas := new(big.Int).Mul(
gasPrice,
new(big.Int).Add(
new(big.Int).SetUint64(intrinsicGas),
new(big.Int).SetUint64(gas),
),
)
consumedGas := new(big.Int).Mul(gasPrice, new(big.Int).SetUint64(t.gasLimit))
fromBal.Add(fromBal, new(big.Int).Add(value, consumedGas))
t.prestate[from].Balance = hexutil.EncodeBig(fromBal)
t.prestate[from].Nonce--
@ -145,6 +131,12 @@ func (t *prestateTracer) CaptureEnter(typ vm.OpCode, from common.Address, to com
func (t *prestateTracer) CaptureExit(output []byte, gasUsed uint64, err error) {
}
func (t *prestateTracer) CaptureTxStart(gasLimit uint64) {
t.gasLimit = gasLimit
}
func (t *prestateTracer) CaptureTxEnd(restGas uint64) {}
// GetResult returns the json-encoded nested list of call traces, and any
// error arising from the encoding or forceful termination (via `Stop`).
func (t *prestateTracer) GetResult() (json.RawMessage, error) {