eth/tracers: add golang 4byte tracer (#23882)
* native 4byte tracer * Update eth/tracers/native/4byte.go Co-authored-by: Martin Holst Swende <martin@swende.se> * Update eth/tracers/native/4byte.go Co-authored-by: Martin Holst Swende <martin@swende.se> * goimports * eth/tracers: make 4byte tracer not care about create Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Ward Bradt
GitHub
parent
5358e491f3
commit
e9294a7fe9
@ -37,11 +37,16 @@
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this.ids[key] = this.ids[key] + 1 || 1;
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},
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enter: function(frame) {
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enter: function(frame, log) {
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// Skip any pre-compile invocations, those are just fancy opcodes
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if (isPrecompiled(frame.getTo())) {
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return;
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}
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var type = frame.getType()
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if (type !== "CALL" && type !== "STATICCALL" &&
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type !== "DELEGATECALL" && type !== "CALLCODE"){
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return;
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}
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var input = frame.getInput()
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if (input.length >= 4) {
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this.store(slice(input, 0, 4), input.length - 4);
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@ -1,6 +1,6 @@
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// Code generated by go-bindata. DO NOT EDIT.
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// sources:
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// 4byte_tracer.js (2.224kB)
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// 4byte_tracer.js (2.375kB)
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// 4byte_tracer_legacy.js (2.933kB)
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// bigram_tracer.js (1.712kB)
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// call_tracer_js.js (3.497kB)
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@ -79,7 +79,7 @@ func (fi bindataFileInfo) Sys() interface{} {
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return nil
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}
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var __4byte_tracerJs = []byte("\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff\x8c\x55\x5b\x4f\xdb\x48\x14\x7e\x4e\x7e\xc5\xb7\x79\xa8\x88\xea\xdc\x03\xb9\x74\xa9\x94\xa5\xa1\x8d\xc4\x02\x0a\x46\x15\x5a\xed\xc3\xc4\x73\x6c\xcf\xe2\xcc\x58\x33\x63\x48\x96\xf2\xdf\x57\x33\x76\x48\xa0\xad\xb6\x4f\x84\x73\xf9\xce\xe5\x3b\xf3\xb9\xd3\xc1\x99\xca\xb7\x5a\x24\xa9\x45\xbf\xdb\x1b\x21\x4c\x09\x89\x6a\x91\x4d\x49\x53\xb1\xc6\xac\xb0\xa9\xd2\xa6\xde\xe9\x20\x4c\x85\x41\x2c\x32\x82\x30\xc8\x99\xb6\x50\x31\xec\x9b\xf8\x4c\xac\x34\xd3\xdb\x76\xbd\xd3\x29\x73\x7e\xe8\x76\x08\xb1\x26\x82\x51\xb1\x7d\x64\x9a\xa6\xd8\xaa\x02\x11\x93\xd0\xc4\x85\xb1\x5a\xac\x0a\x4b\x10\x16\x4c\xf2\x8e\xd2\x58\x2b\x2e\xe2\xad\x83\x14\x16\x85\xe4\xa4\x7d\x69\x4b\x7a\x6d\x76\x7d\x7c\xbe\xbc\xc5\x05\x19\x43\x1a\x9f\x49\x92\x66\x19\xae\x8b\x55\x26\x22\x5c\x88\x88\xa4\x21\x30\x83\xdc\x59\x4c\x4a\x1c\x2b\x0f\xe7\x12\xcf\x5d\x2b\x37\x55\x2b\x38\x57\x85\xe4\xcc\x0a\x25\x03\x90\x70\x9d\xe3\x81\xb4\x11\x4a\x62\xb0\x2b\x55\x01\x06\x50\xda\x81\x1c\x31\xeb\x06\xd0\x50\xb9\xcb\x6b\x82\xc9\x2d\x32\x66\xf7\xa9\xbf\xb0\x90\xfd\xdc\x1c\x42\xfa\x32\xa9\xca\x09\x36\x65\xd6\x4d\xfd\x28\xb2\x0c\x2b\x42\x61\x28\x2e\xb2\xc0\xa1\xad\x0a\x8b\xaf\x8b\xf0\xcb\xd5\x6d\x88\xd9\xe5\x1d\xbe\xce\x96\xcb\xd9\x65\x78\xf7\x01\x8f\xc2\xa6\xaa\xb0\xa0\x07\x2a\xa1\xc4\x3a\xcf\x04\x71\x3c\x32\xad\x99\xb4\x5b\xa8\xd8\x21\xfc\x39\x5f\x9e\x7d\x99\x5d\x86\xb3\x3f\x16\x17\x8b\xf0\x0e\x4a\xe3\x7c\x11\x5e\xce\x6f\x6e\x70\x7e\xb5\xc4\x0c\xd7\xb3\x65\xb8\x38\xbb\xbd\x98\x2d\x71\x7d\xbb\xbc\xbe\xba\x99\xb7\x71\x43\xae\x2b\x72\xf9\xff\xbf\xf3\xd8\xb3\xa7\x09\x9c\x2c\x13\x99\xd9\x6d\xe2\x4e\x15\x30\xa9\x2a\x32\x8e\x94\x3d\x10\x34\x45\x24\x1e\x88\x83\x21\x52\xf9\xf6\x97\x49\x75\x58\x2c\x53\x32\xf1\x33\xff\xf4\x20\xb1\x88\x21\x95\x0d\x60\x88\xf0\x7b\x6a\x6d\x3e\xed\x74\x1e\x1f\x1f\xdb\x89\x2c\xda\x4a\x27\x9d\xac\x84\x33\x9d\x8f\xed\xba\xc3\x1c\xae\xb6\x96\x42\xcd\x22\xd2\x30\xc4\x74\x94\x92\xf1\xc3\x78\x47\x4b\x70\x92\x56\xc4\x82\xb4\x09\xdc\x91\x22\x52\x59\x46\x91\x35\xae\x83\xb5\x0f\xcc\x95\xb1\xad\x5c\xab\x88\x8c\x11\x32\x71\x83\x63\x61\x5f\x05\x62\x4d\x36\x55\xdc\xe0\x00\xee\xed\x34\x46\xfc\x4b\xbb\x6d\x98\x22\x2f\x69\xe4\xcc\xb2\x00\x46\xf9\xe9\xa1\xc9\x9d\x19\x71\x18\x91\x48\x66\x0b\x4d\xfe\x2d\xad\x08\x6b\x66\x23\x77\xec\x2c\x61\x42\x1a\xfb\x1d\xa0\xc3\xd9\x31\x32\xdf\xb0\x75\x9e\xd1\xd4\xfd\x06\x3e\x82\xd3\xaa\x48\xda\xd6\xad\x20\xd4\x4c\x1a\x16\xb9\xe3\x3e\x42\xa3\xbb\xe9\xf7\x86\x74\x3c\x19\xd1\xe0\x98\xb3\xee\x78\x70\x32\xe9\xc7\xc7\x83\xf1\x49\x6f\xd8\xa3\x93\x49\x3c\x1c\xd1\x64\x34\x58\xf5\xa3\xe3\x13\x1a\xb1\x71\x77\x34\x58\xf5\x88\x75\xc7\x31\x1f\x1d\x8f\x7a\x34\xe1\xd4\x08\xf0\xe4\x81\xf5\x14\x8d\x83\x4d\x37\x9e\x9b\x65\xf5\xa7\xf2\x0f\xd0\xdd\xf4\x47\x3c\xea\x4f\x46\xd4\xea\xf5\xc7\x53\xf4\x82\xbd\x67\x30\x8e\xa2\xe1\x78\xd0\x6b\x75\xa7\xe8\x1f\xd8\x8f\xfb\xc3\x78\x30\x1e\x4f\x5a\x93\x93\xd7\x09\x8c\xc7\xc7\x93\x78\x32\x69\xf5\xc7\x6f\xa0\xa2\xfe\xb8\xc7\x7b\x13\x72\x50\xbd\xd2\xfc\x5c\x7f\xaa\xd7\x9c\xe0\x70\x03\x96\x24\x9a\x12\x66\xa9\x64\xcd\x77\xec\x1d\xb1\x13\x8b\x76\xbd\xe6\x7e\x4f\xf1\xf4\x1c\xd4\x7d\x8e\xb1\xee\xe2\x8d\xbb\x6b\x7f\x90\xc2\x3d\x43\x21\x5f\x48\xf6\x17\xe3\x76\xef\xb8\x68\xd7\x6b\x3e\x7e\x8a\xb8\x90\xe5\x8e\x05\x0f\x3c\x4d\xcd\xa7\x7a\xad\xf6\xc0\x34\xee\x69\x8b\x53\x34\x1a\x78\x0f\xab\xbe\xd0\xe6\x48\xf0\x26\xde\xa3\xd1\x72\x16\x17\xf9\xa1\x5e\xab\xd9\x54\x98\xb6\xe0\xe6\xaf\x7b\xda\xfe\x8d\x53\xbc\xfe\xff\x3d\x7a\xf8\xf6\x0d\xbd\x0f\xf5\x9a\x6f\x93\xa4\x75\xeb\x7f\xa9\x19\x6b\xb6\xa6\x00\x99\x4a\x9a\x70\x65\x3b\x1d\xdc\xdc\x8b\xdc\x6b\x59\xae\xa9\x15\xa9\x75\xee\xd5\x5f\x3e\xa8\xc8\xeb\xa3\x09\x60\x53\xe5\x74\x55\x13\xfe\x29\x8c\x45\xcc\x64\xb4\x85\xca\x23\xc5\xc9\xd4\x6b\x35\x11\xe3\x48\x98\x6b\x4d\x55\x32\x2f\xab\xb4\x13\xb2\xa1\x3a\x6a\x36\xcb\x4a\x35\x4d\xb6\xd0\xd2\x8d\xf0\x5c\xcd\x6b\xb7\x39\xe1\x14\xfb\xe8\x6d\x4e\x47\xcd\x0a\xd1\x3b\x7f\x3b\x3d\x45\xe3\x6c\x76\x71\xd1\xc0\xbb\x77\xd8\x9b\x6e\xc2\x59\xb8\x38\xdb\x39\x1c\xfa\xde\xf7\x69\x7e\x31\xff\x3c\x0b\xe7\x3f\x48\x73\xa6\xb3\xab\x4f\xf3\x46\xf3\x27\x1d\x09\x99\x17\xf6\xb0\xa5\x85\x33\xbc\xf4\xe4\xdd\xed\x8c\x64\x62\x53\x7c\x3c\xc5\xb0\x1a\xcd\x73\xe0\xe9\x3d\x32\x4e\x62\xca\xc0\x00\xdd\x00\xc3\x66\x80\x57\x69\x2d\x0c\x9b\x55\xc9\x92\xa1\x8d\xb0\x6f\x09\x5a\x92\x29\x32\xdb\xdc\x9f\x5a\xcc\x8a\xcc\xba\xef\x87\xe3\xe5\xde\x29\x7c\x5a\x49\x3e\x8b\x6c\xc1\x32\xd0\x86\xa2\xc2\x01\xb8\x37\xcf\x64\xc5\x0e\xe2\x52\x8c\x6b\x3e\xff\xa0\x4a\xa6\x92\x00\x7c\x75\x50\x41\xfb\x92\xdf\x95\x60\x59\xe6\xcb\x54\x6c\x97\x2a\xbe\x22\x77\xe8\x96\x34\x73\x9f\x31\xf5\x50\x9d\x7a\xb9\x4e\xe3\xe1\x5c\x4e\x2c\x24\xcb\x76\xc0\x95\x14\x39\x3d\xf0\x32\x59\x2b\xed\x07\x3d\x45\x76\xb3\xbf\xc9\xdd\xa3\x52\x85\xfb\xbe\x46\x2c\xcb\xdc\x43\x02\xcb\x8c\xaa\xb8\x88\xec\xa6\xfd\xcb\x7c\xbc\x04\xbf\x70\xf2\x36\xbd\x35\x6c\x56\x77\x50\x8e\xf1\xf2\xae\xca\x97\xf4\x5c\xff\x2f\x00\x00\xff\xff\x6e\x82\xd6\x8b\x47\x09\x00\x00")
|
||||
|
||||
func _4byte_tracerJsBytes() ([]byte, error) {
|
||||
return bindataRead(
|
||||
@ -95,7 +95,7 @@ func _4byte_tracerJs() (*asset, error) {
|
||||
}
|
||||
|
||||
info := bindataFileInfo{name: "4byte_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
|
||||
a := &asset{bytes: bytes, info: info, digest: [32]uint8{0x6b, 0xa8, 0x46, 0xa2, 0x3a, 0x2b, 0xaa, 0xb9, 0xb9, 0xba, 0xe2, 0x22, 0x10, 0xe, 0xe7, 0x4c, 0x24, 0xfc, 0x4c, 0x85, 0xeb, 0x96, 0x48, 0xe8, 0x7f, 0xc8, 0xe0, 0xd0, 0xd, 0x26, 0xa1, 0xb2}}
|
||||
a := &asset{bytes: bytes, info: info, digest: [32]uint8{0xdb, 0xff, 0x9f, 0xb0, 0x9e, 0x1a, 0xd7, 0xd3, 0xcb, 0xf6, 0x6e, 0xf5, 0xf7, 0xbc, 0xe7, 0xbc, 0xd6, 0x7c, 0x37, 0x16, 0xd7, 0x4f, 0x85, 0xb3, 0x1f, 0xfd, 0x66, 0x3e, 0x91, 0xed, 0x86, 0x27}}
|
||||
return a, nil
|
||||
}
|
||||
|
||||
|
||||
148
eth/tracers/native/4byte.go
Normal file
148
eth/tracers/native/4byte.go
Normal file
@ -0,0 +1,148 @@
|
||||
// Copyright 2021 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 native
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"math/big"
|
||||
"strconv"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/core/vm"
|
||||
"github.com/ethereum/go-ethereum/eth/tracers"
|
||||
)
|
||||
|
||||
func init() {
|
||||
register("4byte", newFourByteTracer)
|
||||
}
|
||||
|
||||
// fourByteTracer searches for 4byte-identifiers, and collects them for post-processing.
|
||||
// It collects the methods identifiers along with the size of the supplied data, so
|
||||
// a reversed signature can be matched against the size of the data.
|
||||
//
|
||||
// Example:
|
||||
// > debug.traceTransaction( "0x214e597e35da083692f5386141e69f47e973b2c56e7a8073b1ea08fd7571e9de", {tracer: "4byte"})
|
||||
// {
|
||||
// 0x27dc297e-128: 1,
|
||||
// 0x38cc4831-0: 2,
|
||||
// 0x524f3889-96: 1,
|
||||
// 0xadf59f99-288: 1,
|
||||
// 0xc281d19e-0: 1
|
||||
// }
|
||||
type fourByteTracer struct {
|
||||
env *vm.EVM
|
||||
ids map[string]int // ids aggregates the 4byte ids found
|
||||
interrupt uint32 // Atomic flag to signal execution interruption
|
||||
reason error // Textual reason for the interruption
|
||||
activePrecompiles []common.Address // Updated on CaptureStart based on given rules
|
||||
}
|
||||
|
||||
// newFourByteTracer returns a native go tracer which collects
|
||||
// 4 byte-identifiers of a tx, and implements vm.EVMLogger.
|
||||
func newFourByteTracer() tracers.Tracer {
|
||||
t := &fourByteTracer{
|
||||
ids: make(map[string]int),
|
||||
}
|
||||
return t
|
||||
}
|
||||
|
||||
// isPrecompiled returns whether the addr is a precompile. Logic borrowed from newJsTracer in eth/tracers/js/tracer.go
|
||||
func (t *fourByteTracer) isPrecompiled(addr common.Address) bool {
|
||||
for _, p := range t.activePrecompiles {
|
||||
if p == addr {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// store saves the given identifier and datasize.
|
||||
func (t *fourByteTracer) store(id []byte, size int) {
|
||||
key := bytesToHex(id) + "-" + strconv.Itoa(size)
|
||||
t.ids[key] += 1
|
||||
}
|
||||
|
||||
// CaptureStart implements the EVMLogger interface to initialize the tracing operation.
|
||||
func (t *fourByteTracer) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) {
|
||||
t.env = env
|
||||
|
||||
// Update list of precompiles based on current block
|
||||
rules := env.ChainConfig().Rules(env.Context.BlockNumber)
|
||||
t.activePrecompiles = vm.ActivePrecompiles(rules)
|
||||
|
||||
// Save the outer calldata also
|
||||
if len(input) >= 4 {
|
||||
t.store(input[0:4], len(input)-4)
|
||||
}
|
||||
}
|
||||
|
||||
// CaptureState implements the EVMLogger interface to trace a single step of VM execution.
|
||||
func (t *fourByteTracer) CaptureState(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) {
|
||||
}
|
||||
|
||||
// CaptureEnter is called when EVM enters a new scope (via call, create or selfdestruct).
|
||||
func (t *fourByteTracer) CaptureEnter(op vm.OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) {
|
||||
// Skip if tracing was interrupted
|
||||
if atomic.LoadUint32(&t.interrupt) > 0 {
|
||||
t.env.Cancel()
|
||||
return
|
||||
}
|
||||
if len(input) < 4 {
|
||||
return
|
||||
}
|
||||
// primarily we want to avoid CREATE/CREATE2/SELFDESTRUCT
|
||||
if op != vm.DELEGATECALL && op != vm.STATICCALL &&
|
||||
op != vm.CALL && op != vm.CALLCODE {
|
||||
return
|
||||
}
|
||||
// Skip any pre-compile invocations, those are just fancy opcodes
|
||||
if t.isPrecompiled(to) {
|
||||
return
|
||||
}
|
||||
t.store(input[0:4], len(input)-4)
|
||||
}
|
||||
|
||||
// CaptureExit is called when EVM exits a scope, even if the scope didn't
|
||||
// execute any code.
|
||||
func (t *fourByteTracer) CaptureExit(output []byte, gasUsed uint64, err error) {
|
||||
}
|
||||
|
||||
// CaptureFault implements the EVMLogger interface to trace an execution fault.
|
||||
func (t *fourByteTracer) CaptureFault(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, depth int, err error) {
|
||||
}
|
||||
|
||||
// CaptureEnd is called after the call finishes to finalize the tracing.
|
||||
func (t *fourByteTracer) CaptureEnd(output []byte, gasUsed uint64, _ time.Duration, err error) {
|
||||
}
|
||||
|
||||
// GetResult returns the json-encoded nested list of call traces, and any
|
||||
// error arising from the encoding or forceful termination (via `Stop`).
|
||||
func (t *fourByteTracer) GetResult() (json.RawMessage, error) {
|
||||
res, err := json.Marshal(t.ids)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return res, t.reason
|
||||
}
|
||||
|
||||
// Stop terminates execution of the tracer at the first opportune moment.
|
||||
func (t *fourByteTracer) Stop(err error) {
|
||||
t.reason = err
|
||||
atomic.StoreUint32(&t.interrupt, 1)
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user