diff --git a/core/vm/access_list_tracer.go b/core/vm/access_list_tracer.go
index cc5461d1c3104..11b4e294263e6 100644
--- a/core/vm/access_list_tracer.go
+++ b/core/vm/access_list_tracer.go
@@ -166,6 +166,11 @@ func (*AccessListTracer) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost
func (*AccessListTracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) {}
+func (*AccessListTracer) CaptureEnter(typ OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) {
+}
+
+func (*AccessListTracer) CaptureExit(output []byte, gasUsed uint64, err error) {}
+
// AccessList returns the current accesslist maintained by the tracer.
func (a *AccessListTracer) AccessList() types.AccessList {
return a.list.accessList()
diff --git a/core/vm/evm.go b/core/vm/evm.go
index 8964766736fb1..3b4bd69d7572a 100644
--- a/core/vm/evm.go
+++ b/core/vm/evm.go
@@ -193,11 +193,19 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
evm.Context.Transfer(evm.StateDB, caller.Address(), addr, value)
// Capture the tracer start/end events in debug mode
- if evm.Config.Debug && evm.depth == 0 {
- evm.Config.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value)
- defer func(startGas uint64, startTime time.Time) { // Lazy evaluation of the parameters
- evm.Config.Tracer.CaptureEnd(ret, startGas-gas, time.Since(startTime), err)
- }(gas, time.Now())
+ if evm.Config.Debug {
+ if evm.depth == 0 {
+ evm.Config.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value)
+ defer func(startGas uint64, startTime time.Time) { // Lazy evaluation of the parameters
+ evm.Config.Tracer.CaptureEnd(ret, startGas-gas, time.Since(startTime), err)
+ }(gas, time.Now())
+ } else {
+ // Handle tracer events for entering and exiting a call frame
+ evm.Config.Tracer.CaptureEnter(CALL, caller.Address(), addr, input, gas, value)
+ defer func(startGas uint64) {
+ evm.Config.Tracer.CaptureExit(ret, startGas-gas, err)
+ }(gas)
+ }
}
if isPrecompile {
@@ -257,6 +265,14 @@ func (evm *EVM) CallCode(caller ContractRef, addr common.Address, input []byte,
}
var snapshot = evm.StateDB.Snapshot()
+ // Invoke tracer hooks that signal entering/exiting a call frame
+ if evm.Config.Debug {
+ evm.Config.Tracer.CaptureEnter(CALLCODE, caller.Address(), addr, input, gas, value)
+ defer func(startGas uint64) {
+ evm.Config.Tracer.CaptureExit(ret, startGas-gas, err)
+ }(gas)
+ }
+
// It is allowed to call precompiles, even via delegatecall
if p, isPrecompile := evm.precompile(addr); isPrecompile {
ret, gas, err = RunPrecompiledContract(p, input, gas)
@@ -293,6 +309,14 @@ func (evm *EVM) DelegateCall(caller ContractRef, addr common.Address, input []by
}
var snapshot = evm.StateDB.Snapshot()
+ // Invoke tracer hooks that signal entering/exiting a call frame
+ if evm.Config.Debug {
+ evm.Config.Tracer.CaptureEnter(DELEGATECALL, caller.Address(), addr, input, gas, nil)
+ defer func(startGas uint64) {
+ evm.Config.Tracer.CaptureExit(ret, startGas-gas, err)
+ }(gas)
+ }
+
// It is allowed to call precompiles, even via delegatecall
if p, isPrecompile := evm.precompile(addr); isPrecompile {
ret, gas, err = RunPrecompiledContract(p, input, gas)
@@ -338,6 +362,14 @@ func (evm *EVM) StaticCall(caller ContractRef, addr common.Address, input []byte
// future scenarios
evm.StateDB.AddBalance(addr, big0)
+ // Invoke tracer hooks that signal entering/exiting a call frame
+ if evm.Config.Debug {
+ evm.Config.Tracer.CaptureEnter(STATICCALL, caller.Address(), addr, input, gas, nil)
+ defer func(startGas uint64) {
+ evm.Config.Tracer.CaptureExit(ret, startGas-gas, err)
+ }(gas)
+ }
+
if p, isPrecompile := evm.precompile(addr); isPrecompile {
ret, gas, err = RunPrecompiledContract(p, input, gas)
} else {
@@ -377,7 +409,7 @@ func (c *codeAndHash) Hash() common.Hash {
}
// create creates a new contract using code as deployment code.
-func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64, value *big.Int, address common.Address) ([]byte, common.Address, uint64, error) {
+func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64, value *big.Int, address common.Address, typ OpCode) ([]byte, common.Address, uint64, error) {
// Depth check execution. Fail if we're trying to execute above the
// limit.
if evm.depth > int(params.CallCreateDepth) {
@@ -415,9 +447,14 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
return nil, address, gas, nil
}
- if evm.Config.Debug && evm.depth == 0 {
- evm.Config.Tracer.CaptureStart(evm, caller.Address(), address, true, codeAndHash.code, gas, value)
+ if evm.Config.Debug {
+ if evm.depth == 0 {
+ evm.Config.Tracer.CaptureStart(evm, caller.Address(), address, true, codeAndHash.code, gas, value)
+ } else {
+ evm.Config.Tracer.CaptureEnter(typ, caller.Address(), address, codeAndHash.code, gas, value)
+ }
}
+
start := time.Now()
ret, err := evm.interpreter.Run(contract, nil, false)
@@ -455,8 +492,12 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
}
}
- if evm.Config.Debug && evm.depth == 0 {
- evm.Config.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err)
+ if evm.Config.Debug {
+ if evm.depth == 0 {
+ evm.Config.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err)
+ } else {
+ evm.Config.Tracer.CaptureExit(ret, gas-contract.Gas, err)
+ }
}
return ret, address, contract.Gas, err
}
@@ -464,7 +505,7 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
// Create creates a new contract using code as deployment code.
func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.Int) (ret []byte, contractAddr common.Address, leftOverGas uint64, err error) {
contractAddr = crypto.CreateAddress(caller.Address(), evm.StateDB.GetNonce(caller.Address()))
- return evm.create(caller, &codeAndHash{code: code}, gas, value, contractAddr)
+ return evm.create(caller, &codeAndHash{code: code}, gas, value, contractAddr, CREATE)
}
// Create2 creates a new contract using code as deployment code.
@@ -474,7 +515,7 @@ func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.I
func (evm *EVM) Create2(caller ContractRef, code []byte, gas uint64, endowment *big.Int, salt *uint256.Int) (ret []byte, contractAddr common.Address, leftOverGas uint64, err error) {
codeAndHash := &codeAndHash{code: code}
contractAddr = crypto.CreateAddress2(caller.Address(), salt.Bytes32(), codeAndHash.Hash().Bytes())
- return evm.create(caller, codeAndHash, gas, endowment, contractAddr)
+ return evm.create(caller, codeAndHash, gas, endowment, contractAddr, CREATE2)
}
// ChainConfig returns the environment's chain configuration
diff --git a/core/vm/instructions.go b/core/vm/instructions.go
index 6c8c6e6e6fa1b..bda480f083d42 100644
--- a/core/vm/instructions.go
+++ b/core/vm/instructions.go
@@ -791,6 +791,10 @@ func opSuicide(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]
balance := interpreter.evm.StateDB.GetBalance(scope.Contract.Address())
interpreter.evm.StateDB.AddBalance(beneficiary.Bytes20(), balance)
interpreter.evm.StateDB.Suicide(scope.Contract.Address())
+ if interpreter.cfg.Debug {
+ interpreter.cfg.Tracer.CaptureEnter(SELFDESTRUCT, scope.Contract.Address(), beneficiary.Bytes20(), []byte{}, 0, balance)
+ interpreter.cfg.Tracer.CaptureExit([]byte{}, 0, nil)
+ }
return nil, nil
}
diff --git a/core/vm/logger.go b/core/vm/logger.go
index 9be5e7e5eb7d2..52dc0b8a0ec14 100644
--- a/core/vm/logger.go
+++ b/core/vm/logger.go
@@ -106,6 +106,8 @@ func (s *StructLog) ErrorString() string {
type Tracer interface {
CaptureStart(env *EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int)
CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error)
+ CaptureEnter(typ OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int)
+ CaptureExit(output []byte, gasUsed uint64, err error)
CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error)
CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error)
}
@@ -225,6 +227,11 @@ func (l *StructLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration
}
}
+func (l *StructLogger) CaptureEnter(typ OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) {
+}
+
+func (l *StructLogger) CaptureExit(output []byte, gasUsed uint64, err error) {}
+
// StructLogs returns the captured log entries.
func (l *StructLogger) StructLogs() []StructLog { return l.logs }
@@ -342,3 +349,8 @@ func (t *mdLogger) CaptureEnd(output []byte, gasUsed uint64, tm time.Duration, e
fmt.Fprintf(t.out, "\nOutput: `0x%x`\nConsumed gas: `%d`\nError: `%v`\n",
output, gasUsed, err)
}
+
+func (t *mdLogger) CaptureEnter(typ OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) {
+}
+
+func (t *mdLogger) CaptureExit(output []byte, gasUsed uint64, err error) {}
diff --git a/core/vm/logger_json.go b/core/vm/logger_json.go
index 8656ce9d74c8a..479a00c0acad1 100644
--- a/core/vm/logger_json.go
+++ b/core/vm/logger_json.go
@@ -87,3 +87,8 @@ func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration,
}
l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, errMsg})
}
+
+func (l *JSONLogger) CaptureEnter(typ OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) {
+}
+
+func (l *JSONLogger) CaptureExit(output []byte, gasUsed uint64, err error) {}
diff --git a/core/vm/runtime/runtime_test.go b/core/vm/runtime/runtime_test.go
index dcf2d0d4478d5..9f4bafbc7fd5b 100644
--- a/core/vm/runtime/runtime_test.go
+++ b/core/vm/runtime/runtime_test.go
@@ -33,6 +33,7 @@ import (
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
+ "github.com/ethereum/go-ethereum/eth/tracers"
"github.com/ethereum/go-ethereum/params"
)
@@ -342,11 +343,21 @@ func (s *stepCounter) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, co
// benchmarkNonModifyingCode benchmarks code, but if the code modifies the
// state, this should not be used, since it does not reset the state between runs.
-func benchmarkNonModifyingCode(gas uint64, code []byte, name string, b *testing.B) {
+func benchmarkNonModifyingCode(gas uint64, code []byte, name string, tracerCode string, b *testing.B) {
cfg := new(Config)
setDefaults(cfg)
cfg.State, _ = state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
cfg.GasLimit = gas
+ if len(tracerCode) > 0 {
+ tracer, err := tracers.New(tracerCode, new(tracers.Context))
+ if err != nil {
+ b.Fatal(err)
+ }
+ cfg.EVMConfig = vm.Config{
+ Debug: true,
+ Tracer: tracer,
+ }
+ }
var (
destination = common.BytesToAddress([]byte("contract"))
vmenv = NewEnv(cfg)
@@ -486,12 +497,12 @@ func BenchmarkSimpleLoop(b *testing.B) {
// Tracer: tracer,
// }})
// 100M gas
- benchmarkNonModifyingCode(100000000, staticCallIdentity, "staticcall-identity-100M", b)
- benchmarkNonModifyingCode(100000000, callIdentity, "call-identity-100M", b)
- benchmarkNonModifyingCode(100000000, loopingCode, "loop-100M", b)
- benchmarkNonModifyingCode(100000000, callInexistant, "call-nonexist-100M", b)
- benchmarkNonModifyingCode(100000000, callEOA, "call-EOA-100M", b)
- benchmarkNonModifyingCode(100000000, calllRevertingContractWithInput, "call-reverting-100M", b)
+ benchmarkNonModifyingCode(100000000, staticCallIdentity, "staticcall-identity-100M", "", b)
+ benchmarkNonModifyingCode(100000000, callIdentity, "call-identity-100M", "", b)
+ benchmarkNonModifyingCode(100000000, loopingCode, "loop-100M", "", b)
+ benchmarkNonModifyingCode(100000000, callInexistant, "call-nonexist-100M", "", b)
+ benchmarkNonModifyingCode(100000000, callEOA, "call-EOA-100M", "", b)
+ benchmarkNonModifyingCode(100000000, calllRevertingContractWithInput, "call-reverting-100M", "", b)
//benchmarkNonModifyingCode(10000000, staticCallIdentity, "staticcall-identity-10M", b)
//benchmarkNonModifyingCode(10000000, loopingCode, "loop-10M", b)
@@ -688,3 +699,241 @@ func TestColdAccountAccessCost(t *testing.T) {
}
}
}
+
+func TestRuntimeJSTracer(t *testing.T) {
+ jsTracers := []string{
+ `{enters: 0, exits: 0, enterGas: 0, gasUsed: 0, steps:0,
+ step: function() { this.steps++},
+ fault: function() {},
+ result: function() {
+ return [this.enters, this.exits,this.enterGas,this.gasUsed, this.steps].join(",")
+ },
+ enter: function(frame) {
+ this.enters++;
+ this.enterGas = frame.getGas();
+ },
+ exit: function(res) {
+ this.exits++;
+ this.gasUsed = res.getGasUsed();
+ }}`,
+ `{enters: 0, exits: 0, enterGas: 0, gasUsed: 0, steps:0,
+ fault: function() {},
+ result: function() {
+ return [this.enters, this.exits,this.enterGas,this.gasUsed, this.steps].join(",")
+ },
+ enter: function(frame) {
+ this.enters++;
+ this.enterGas = frame.getGas();
+ },
+ exit: function(res) {
+ this.exits++;
+ this.gasUsed = res.getGasUsed();
+ }}`}
+ tests := []struct {
+ code []byte
+ // One result per tracer
+ results []string
+ }{
+ {
+ // CREATE
+ code: []byte{
+ // Store initcode in memory at 0x00 (5 bytes left-padded to 32 bytes)
+ byte(vm.PUSH5),
+ // Init code: PUSH1 0, PUSH1 0, RETURN (3 steps)
+ byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.RETURN),
+ byte(vm.PUSH1), 0,
+ byte(vm.MSTORE),
+ // length, offset, value
+ byte(vm.PUSH1), 5, byte(vm.PUSH1), 27, byte(vm.PUSH1), 0,
+ byte(vm.CREATE),
+ byte(vm.POP),
+ },
+ results: []string{`"1,1,4294935775,6,12"`, `"1,1,4294935775,6,0"`},
+ },
+ {
+ // CREATE2
+ code: []byte{
+ // Store initcode in memory at 0x00 (5 bytes left-padded to 32 bytes)
+ byte(vm.PUSH5),
+ // Init code: PUSH1 0, PUSH1 0, RETURN (3 steps)
+ byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.RETURN),
+ byte(vm.PUSH1), 0,
+ byte(vm.MSTORE),
+ // salt, length, offset, value
+ byte(vm.PUSH1), 1, byte(vm.PUSH1), 5, byte(vm.PUSH1), 27, byte(vm.PUSH1), 0,
+ byte(vm.CREATE2),
+ byte(vm.POP),
+ },
+ results: []string{`"1,1,4294935766,6,13"`, `"1,1,4294935766,6,0"`},
+ },
+ {
+ // CALL
+ code: []byte{
+ // outsize, outoffset, insize, inoffset
+ byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0,
+ byte(vm.PUSH1), 0, // value
+ byte(vm.PUSH1), 0xbb, //address
+ byte(vm.GAS), // gas
+ byte(vm.CALL),
+ byte(vm.POP),
+ },
+ results: []string{`"1,1,4294964716,6,13"`, `"1,1,4294964716,6,0"`},
+ },
+ {
+ // CALLCODE
+ code: []byte{
+ // outsize, outoffset, insize, inoffset
+ byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0,
+ byte(vm.PUSH1), 0, // value
+ byte(vm.PUSH1), 0xcc, //address
+ byte(vm.GAS), // gas
+ byte(vm.CALLCODE),
+ byte(vm.POP),
+ },
+ results: []string{`"1,1,4294964716,6,13"`, `"1,1,4294964716,6,0"`},
+ },
+ {
+ // STATICCALL
+ code: []byte{
+ // outsize, outoffset, insize, inoffset
+ byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0,
+ byte(vm.PUSH1), 0xdd, //address
+ byte(vm.GAS), // gas
+ byte(vm.STATICCALL),
+ byte(vm.POP),
+ },
+ results: []string{`"1,1,4294964719,6,12"`, `"1,1,4294964719,6,0"`},
+ },
+ {
+ // DELEGATECALL
+ code: []byte{
+ // outsize, outoffset, insize, inoffset
+ byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0,
+ byte(vm.PUSH1), 0xee, //address
+ byte(vm.GAS), // gas
+ byte(vm.DELEGATECALL),
+ byte(vm.POP),
+ },
+ results: []string{`"1,1,4294964719,6,12"`, `"1,1,4294964719,6,0"`},
+ },
+ {
+ // CALL self-destructing contract
+ code: []byte{
+ // outsize, outoffset, insize, inoffset
+ byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.PUSH1), 0,
+ byte(vm.PUSH1), 0, // value
+ byte(vm.PUSH1), 0xff, //address
+ byte(vm.GAS), // gas
+ byte(vm.CALL),
+ byte(vm.POP),
+ },
+ results: []string{`"2,2,0,5003,12"`, `"2,2,0,5003,0"`},
+ },
+ }
+ calleeCode := []byte{
+ byte(vm.PUSH1), 0,
+ byte(vm.PUSH1), 0,
+ byte(vm.RETURN),
+ }
+ depressedCode := []byte{
+ byte(vm.PUSH1), 0xaa,
+ byte(vm.SELFDESTRUCT),
+ }
+ main := common.HexToAddress("0xaa")
+ for i, jsTracer := range jsTracers {
+ for j, tc := range tests {
+ statedb, _ := state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
+ statedb.SetCode(main, tc.code)
+ statedb.SetCode(common.HexToAddress("0xbb"), calleeCode)
+ statedb.SetCode(common.HexToAddress("0xcc"), calleeCode)
+ statedb.SetCode(common.HexToAddress("0xdd"), calleeCode)
+ statedb.SetCode(common.HexToAddress("0xee"), calleeCode)
+ statedb.SetCode(common.HexToAddress("0xff"), depressedCode)
+
+ tracer, err := tracers.New(jsTracer, new(tracers.Context))
+ if err != nil {
+ t.Fatal(err)
+ }
+ _, _, err = Call(main, nil, &Config{
+ State: statedb,
+ EVMConfig: vm.Config{
+ Debug: true,
+ Tracer: tracer,
+ }})
+ if err != nil {
+ t.Fatal("didn't expect error", err)
+ }
+ res, err := tracer.GetResult()
+ if err != nil {
+ t.Fatal(err)
+ }
+ if have, want := string(res), tc.results[i]; have != want {
+ t.Errorf("wrong result for tracer %d testcase %d, have \n%v\nwant\n%v\n", i, j, have, want)
+ }
+ }
+ }
+}
+
+func TestJSTracerCreateTx(t *testing.T) {
+ jsTracer := `
+ {enters: 0, exits: 0,
+ step: function() {},
+ fault: function() {},
+ result: function() { return [this.enters, this.exits].join(",") },
+ enter: function(frame) { this.enters++ },
+ exit: function(res) { this.exits++ }}`
+ code := []byte{byte(vm.PUSH1), 0, byte(vm.PUSH1), 0, byte(vm.RETURN)}
+
+ statedb, _ := state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
+ tracer, err := tracers.New(jsTracer, new(tracers.Context))
+ if err != nil {
+ t.Fatal(err)
+ }
+ _, _, _, err = Create(code, &Config{
+ State: statedb,
+ EVMConfig: vm.Config{
+ Debug: true,
+ Tracer: tracer,
+ }})
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ res, err := tracer.GetResult()
+ if err != nil {
+ t.Fatal(err)
+ }
+ if have, want := string(res), `"0,0"`; have != want {
+ t.Errorf("wrong result for tracer, have \n%v\nwant\n%v\n", have, want)
+ }
+}
+
+func BenchmarkTracerStepVsCallFrame(b *testing.B) {
+ // Simply pushes and pops some values in a loop
+ code := []byte{
+ byte(vm.JUMPDEST),
+ byte(vm.PUSH1), 0,
+ byte(vm.PUSH1), 0,
+ byte(vm.POP),
+ byte(vm.POP),
+ byte(vm.PUSH1), 0, // jumpdestination
+ byte(vm.JUMP),
+ }
+
+ stepTracer := `
+ {
+ step: function() {},
+ fault: function() {},
+ result: function() {},
+ }`
+ callFrameTracer := `
+ {
+ enter: function() {},
+ exit: function() {},
+ fault: function() {},
+ result: function() {},
+ }`
+
+ benchmarkNonModifyingCode(10000000, code, "tracer-step-10M", stepTracer, b)
+ benchmarkNonModifyingCode(10000000, code, "tracer-call-frame-10M", callFrameTracer, b)
+}
diff --git a/core/vm/stack.go b/core/vm/stack.go
index c71d2653a5cd1..220f97c89f64e 100644
--- a/core/vm/stack.go
+++ b/core/vm/stack.go
@@ -91,7 +91,7 @@ func (st *Stack) Print() {
fmt.Println("### stack ###")
if len(st.data) > 0 {
for i, val := range st.data {
- fmt.Printf("%-3d %v\n", i, val)
+ fmt.Printf("%-3d %s\n", i, val.String())
}
} else {
fmt.Println("-- empty --")
diff --git a/eth/tracers/internal/tracers/assets.go b/eth/tracers/internal/tracers/assets.go
index 7f45ab286e75f..52cc7f39f5191 100644
--- a/eth/tracers/internal/tracers/assets.go
+++ b/eth/tracers/internal/tracers/assets.go
@@ -2,7 +2,8 @@
// sources:
// 4byte_tracer.js (2.933kB)
// bigram_tracer.js (1.712kB)
-// call_tracer.js (8.956kB)
+// call_tracer.js (4.251kB)
+// call_tracer_legacy.js (8.956kB)
// evmdis_tracer.js (4.195kB)
// noop_tracer.js (1.271kB)
// opcount_tracer.js (1.372kB)
@@ -117,7 +118,7 @@ func bigram_tracerJs() (*asset, error) {
return a, nil
}
-var _call_tracerJs = 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+var _call_tracerJs = 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func call_tracerJsBytes() ([]byte, error) {
return bindataRead(
@@ -133,6 +134,26 @@ func call_tracerJs() (*asset, error) {
}
info := bindataFileInfo{name: "call_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
+ a := &asset{bytes: bytes, info: info, digest: [32]uint8{0x96, 0x54, 0x29, 0x1, 0x3b, 0x86, 0xea, 0xb2, 0x35, 0xbd, 0x97, 0xb1, 0x17, 0x8c, 0x17, 0x79, 0x1c, 0x4c, 0x8e, 0x7b, 0xe2, 0x5f, 0x11, 0x59, 0xa0, 0x94, 0x35, 0x43, 0xec, 0x18, 0x2a, 0xd9}}
+ return a, nil
+}
+
+var _call_tracer_legacyJs = 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+
+func call_tracer_legacyJsBytes() ([]byte, error) {
+ return bindataRead(
+ _call_tracer_legacyJs,
+ "call_tracer_legacy.js",
+ )
+}
+
+func call_tracer_legacyJs() (*asset, error) {
+ bytes, err := call_tracer_legacyJsBytes()
+ if err != nil {
+ return nil, err
+ }
+
+ info := bindataFileInfo{name: "call_tracer_legacy.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
a := &asset{bytes: bytes, info: info, digest: [32]uint8{0x46, 0x79, 0xb6, 0xbc, 0xd2, 0xc, 0x25, 0xb1, 0x22, 0x56, 0xef, 0x77, 0xb9, 0x5e, 0x2e, 0xf4, 0xda, 0xb2, 0x2f, 0x53, 0xa4, 0xff, 0xc8, 0xac, 0xbb, 0x75, 0x22, 0x46, 0x59, 0xe3, 0x1d, 0x7d}}
return a, nil
}
@@ -348,15 +369,16 @@ func AssetNames() []string {
// _bindata is a table, holding each asset generator, mapped to its name.
var _bindata = map[string]func() (*asset, error){
- "4byte_tracer.js": _4byte_tracerJs,
- "bigram_tracer.js": bigram_tracerJs,
- "call_tracer.js": call_tracerJs,
- "evmdis_tracer.js": evmdis_tracerJs,
- "noop_tracer.js": noop_tracerJs,
- "opcount_tracer.js": opcount_tracerJs,
- "prestate_tracer.js": prestate_tracerJs,
- "trigram_tracer.js": trigram_tracerJs,
- "unigram_tracer.js": unigram_tracerJs,
+ "4byte_tracer.js": _4byte_tracerJs,
+ "bigram_tracer.js": bigram_tracerJs,
+ "call_tracer.js": call_tracerJs,
+ "call_tracer_legacy.js": call_tracer_legacyJs,
+ "evmdis_tracer.js": evmdis_tracerJs,
+ "noop_tracer.js": noop_tracerJs,
+ "opcount_tracer.js": opcount_tracerJs,
+ "prestate_tracer.js": prestate_tracerJs,
+ "trigram_tracer.js": trigram_tracerJs,
+ "unigram_tracer.js": unigram_tracerJs,
}
// AssetDebug is true if the assets were built with the debug flag enabled.
@@ -403,15 +425,16 @@ type bintree struct {
}
var _bintree = &bintree{nil, map[string]*bintree{
- "4byte_tracer.js": {_4byte_tracerJs, map[string]*bintree{}},
- "bigram_tracer.js": {bigram_tracerJs, map[string]*bintree{}},
- "call_tracer.js": {call_tracerJs, map[string]*bintree{}},
- "evmdis_tracer.js": {evmdis_tracerJs, map[string]*bintree{}},
- "noop_tracer.js": {noop_tracerJs, map[string]*bintree{}},
- "opcount_tracer.js": {opcount_tracerJs, map[string]*bintree{}},
- "prestate_tracer.js": {prestate_tracerJs, map[string]*bintree{}},
- "trigram_tracer.js": {trigram_tracerJs, map[string]*bintree{}},
- "unigram_tracer.js": {unigram_tracerJs, map[string]*bintree{}},
+ "4byte_tracer.js": {_4byte_tracerJs, map[string]*bintree{}},
+ "bigram_tracer.js": {bigram_tracerJs, map[string]*bintree{}},
+ "call_tracer.js": {call_tracerJs, map[string]*bintree{}},
+ "call_tracer_legacy.js": {call_tracer_legacyJs, map[string]*bintree{}},
+ "evmdis_tracer.js": {evmdis_tracerJs, map[string]*bintree{}},
+ "noop_tracer.js": {noop_tracerJs, map[string]*bintree{}},
+ "opcount_tracer.js": {opcount_tracerJs, map[string]*bintree{}},
+ "prestate_tracer.js": {prestate_tracerJs, map[string]*bintree{}},
+ "trigram_tracer.js": {trigram_tracerJs, map[string]*bintree{}},
+ "unigram_tracer.js": {unigram_tracerJs, map[string]*bintree{}},
}}
// RestoreAsset restores an asset under the given directory.
diff --git a/eth/tracers/internal/tracers/call_tracer.js b/eth/tracers/internal/tracers/call_tracer.js
index 3ca7377738b73..98cfa0e6d4554 100644
--- a/eth/tracers/internal/tracers/call_tracer.js
+++ b/eth/tracers/internal/tracers/call_tracer.js
@@ -1,4 +1,4 @@
-// Copyright 2017 The go-ethereum Authors
+// 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
@@ -14,212 +14,81 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see .
-// callTracer is a full blown transaction tracer that extracts and reports all
-// the internal calls made by a transaction, along with any useful information.
-{
- // callstack is the current recursive call stack of the EVM execution.
- callstack: [{}],
-
- // descended tracks whether we've just descended from an outer transaction into
- // an inner call.
- descended: false,
-
- // step is invoked for every opcode that the VM executes.
- step: function(log, db) {
- // Capture any errors immediately
- var error = log.getError();
- if (error !== undefined) {
- this.fault(log, db);
- return;
- }
- // We only care about system opcodes, faster if we pre-check once
- var syscall = (log.op.toNumber() & 0xf0) == 0xf0;
- if (syscall) {
- var op = log.op.toString();
- }
- // If a new contract is being created, add to the call stack
- if (syscall && (op == 'CREATE' || op == "CREATE2")) {
- var inOff = log.stack.peek(1).valueOf();
- var inEnd = inOff + log.stack.peek(2).valueOf();
-
- // Assemble the internal call report and store for completion
- var call = {
- type: op,
- from: toHex(log.contract.getAddress()),
- input: toHex(log.memory.slice(inOff, inEnd)),
- gasIn: log.getGas(),
- gasCost: log.getCost(),
- value: '0x' + log.stack.peek(0).toString(16)
- };
- this.callstack.push(call);
- this.descended = true
- return;
- }
- // If a contract is being self destructed, gather that as a subcall too
- if (syscall && op == 'SELFDESTRUCT') {
- var left = this.callstack.length;
- if (this.callstack[left-1].calls === undefined) {
- this.callstack[left-1].calls = [];
- }
- this.callstack[left-1].calls.push({
- type: op,
- from: toHex(log.contract.getAddress()),
- to: toHex(toAddress(log.stack.peek(0).toString(16))),
- gasIn: log.getGas(),
- gasCost: log.getCost(),
- value: '0x' + db.getBalance(log.contract.getAddress()).toString(16)
- });
- return
- }
- // If a new method invocation is being done, add to the call stack
- if (syscall && (op == 'CALL' || op == 'CALLCODE' || op == 'DELEGATECALL' || op == 'STATICCALL')) {
- // Skip any pre-compile invocations, those are just fancy opcodes
- var to = toAddress(log.stack.peek(1).toString(16));
- if (isPrecompiled(to)) {
- return
- }
- var off = (op == 'DELEGATECALL' || op == 'STATICCALL' ? 0 : 1);
-
- var inOff = log.stack.peek(2 + off).valueOf();
- var inEnd = inOff + log.stack.peek(3 + off).valueOf();
-
- // Assemble the internal call report and store for completion
- var call = {
- type: op,
- from: toHex(log.contract.getAddress()),
- to: toHex(to),
- input: toHex(log.memory.slice(inOff, inEnd)),
- gasIn: log.getGas(),
- gasCost: log.getCost(),
- outOff: log.stack.peek(4 + off).valueOf(),
- outLen: log.stack.peek(5 + off).valueOf()
- };
- if (op != 'DELEGATECALL' && op != 'STATICCALL') {
- call.value = '0x' + log.stack.peek(2).toString(16);
- }
- this.callstack.push(call);
- this.descended = true
- return;
- }
- // If we've just descended into an inner call, retrieve it's true allowance. We
- // need to extract if from within the call as there may be funky gas dynamics
- // with regard to requested and actually given gas (2300 stipend, 63/64 rule).
- if (this.descended) {
- if (log.getDepth() >= this.callstack.length) {
- this.callstack[this.callstack.length - 1].gas = log.getGas();
- } else {
- // TODO(karalabe): The call was made to a plain account. We currently don't
- // have access to the true gas amount inside the call and so any amount will
- // mostly be wrong since it depends on a lot of input args. Skip gas for now.
- }
- this.descended = false;
- }
- // If an existing call is returning, pop off the call stack
- if (syscall && op == 'REVERT') {
- this.callstack[this.callstack.length - 1].error = "execution reverted";
- return;
- }
- if (log.getDepth() == this.callstack.length - 1) {
- // Pop off the last call and get the execution results
- var call = this.callstack.pop();
- if (call.type == 'CREATE' || call.type == "CREATE2") {
- // If the call was a CREATE, retrieve the contract address and output code
- call.gasUsed = '0x' + bigInt(call.gasIn - call.gasCost - log.getGas()).toString(16);
- delete call.gasIn; delete call.gasCost;
-
- var ret = log.stack.peek(0);
- if (!ret.equals(0)) {
- call.to = toHex(toAddress(ret.toString(16)));
- call.output = toHex(db.getCode(toAddress(ret.toString(16))));
- } else if (call.error === undefined) {
- call.error = "internal failure"; // TODO(karalabe): surface these faults somehow
- }
- } else {
- // If the call was a contract call, retrieve the gas usage and output
- if (call.gas !== undefined) {
- call.gasUsed = '0x' + bigInt(call.gasIn - call.gasCost + call.gas - log.getGas()).toString(16);
- }
- var ret = log.stack.peek(0);
- if (!ret.equals(0)) {
- call.output = toHex(log.memory.slice(call.outOff, call.outOff + call.outLen));
- } else if (call.error === undefined) {
- call.error = "internal failure"; // TODO(karalabe): surface these faults somehow
- }
- delete call.gasIn; delete call.gasCost;
- delete call.outOff; delete call.outLen;
- }
- if (call.gas !== undefined) {
- call.gas = '0x' + bigInt(call.gas).toString(16);
- }
- // Inject the call into the previous one
- var left = this.callstack.length;
- if (this.callstack[left-1].calls === undefined) {
- this.callstack[left-1].calls = [];
- }
- this.callstack[left-1].calls.push(call);
- }
- },
-
- // fault is invoked when the actual execution of an opcode fails.
- fault: function(log, db) {
- // If the topmost call already reverted, don't handle the additional fault again
- if (this.callstack[this.callstack.length - 1].error !== undefined) {
- return;
- }
- // Pop off the just failed call
- var call = this.callstack.pop();
- call.error = log.getError();
-
- // Consume all available gas and clean any leftovers
- if (call.gas !== undefined) {
- call.gas = '0x' + bigInt(call.gas).toString(16);
- call.gasUsed = call.gas
- }
- delete call.gasIn; delete call.gasCost;
- delete call.outOff; delete call.outLen;
-
- // Flatten the failed call into its parent
- var left = this.callstack.length;
- if (left > 0) {
- if (this.callstack[left-1].calls === undefined) {
- this.callstack[left-1].calls = [];
- }
- this.callstack[left-1].calls.push(call);
- return;
- }
- // Last call failed too, leave it in the stack
- this.callstack.push(call);
- },
-
- // result is invoked when all the opcodes have been iterated over and returns
- // the final result of the tracing.
- result: function(ctx, db) {
- var result = {
- type: ctx.type,
- from: toHex(ctx.from),
- to: toHex(ctx.to),
- value: '0x' + ctx.value.toString(16),
- gas: '0x' + bigInt(ctx.gas).toString(16),
- gasUsed: '0x' + bigInt(ctx.gasUsed).toString(16),
- input: toHex(ctx.input),
- output: toHex(ctx.output),
- time: ctx.time,
- };
- if (this.callstack[0].calls !== undefined) {
- result.calls = this.callstack[0].calls;
- }
- if (this.callstack[0].error !== undefined) {
- result.error = this.callstack[0].error;
- } else if (ctx.error !== undefined) {
- result.error = ctx.error;
- }
- if (result.error !== undefined && (result.error !== "execution reverted" || result.output ==="0x")) {
- delete result.output;
- }
- return this.finalize(result);
- },
+// callFrameTracer uses the new call frame tracing methods to report useful information
+// about internal messages of a transaction.
+{
+ callstack: [{}],
+ fault: function(log, db) {
+ var len = this.callstack.length
+ if (len > 1) {
+ var call = this.callstack.pop()
+ if (this.callstack[len-1].calls === undefined) {
+ this.callstack[len-1].calls = []
+ }
+ this.callstack[len-1].calls.push(call)
+ }
+ },
+ result: function(ctx, db) {
+ // Prepare outer message info
+ var result = {
+ type: ctx.type,
+ from: toHex(ctx.from),
+ to: toHex(ctx.to),
+ value: '0x' + ctx.value.toString(16),
+ gas: '0x' + bigInt(ctx.gas).toString(16),
+ gasUsed: '0x' + bigInt(ctx.gasUsed).toString(16),
+ input: toHex(ctx.input),
+ output: toHex(ctx.output),
+ }
+ if (this.callstack[0].calls !== undefined) {
+ result.calls = this.callstack[0].calls
+ }
+ if (this.callstack[0].error !== undefined) {
+ result.error = this.callstack[0].error
+ } else if (ctx.error !== undefined) {
+ result.error = ctx.error
+ }
+ if (result.error !== undefined && (result.error !== "execution reverted" || result.output ==="0x")) {
+ delete result.output
+ }
+ return this.finalize(result)
+ },
+ enter: function(frame) {
+ var call = {
+ type: frame.getType(),
+ from: toHex(frame.getFrom()),
+ to: toHex(frame.getTo()),
+ input: toHex(frame.getInput()),
+ gas: '0x' + bigInt(frame.getGas()).toString('16'),
+ }
+ if (frame.getValue() !== undefined){
+ call.value='0x' + bigInt(frame.getValue()).toString(16)
+ }
+ this.callstack.push(call)
+ },
+ exit: function(frameResult) {
+ var len = this.callstack.length
+ if (len > 1) {
+ var call = this.callstack.pop()
+ call.gasUsed = '0x' + bigInt(frameResult.getGasUsed()).toString('16')
+ var error = frameResult.getError()
+ if (error === undefined) {
+ call.output = toHex(frameResult.getOutput())
+ } else {
+ call.error = error
+ if (call.type === 'CREATE' || call.type === 'CREATE2') {
+ delete call.to
+ }
+ }
+ len -= 1
+ if (this.callstack[len-1].calls === undefined) {
+ this.callstack[len-1].calls = []
+ }
+ this.callstack[len-1].calls.push(call)
+ }
+ },
// finalize recreates a call object using the final desired field oder for json
// serialization. This is a nicety feature to pass meaningfully ordered results
// to users who don't interpret it, just display it.
@@ -239,14 +108,14 @@
}
for (var key in sorted) {
if (sorted[key] === undefined) {
- delete sorted[key];
+ delete sorted[key]
}
}
if (sorted.calls !== undefined) {
for (var i=0; i.
+
+// callTracer is a full blown transaction tracer that extracts and reports all
+// the internal calls made by a transaction, along with any useful information.
+{
+ // callstack is the current recursive call stack of the EVM execution.
+ callstack: [{}],
+
+ // descended tracks whether we've just descended from an outer transaction into
+ // an inner call.
+ descended: false,
+
+ // step is invoked for every opcode that the VM executes.
+ step: function(log, db) {
+ // Capture any errors immediately
+ var error = log.getError();
+ if (error !== undefined) {
+ this.fault(log, db);
+ return;
+ }
+ // We only care about system opcodes, faster if we pre-check once
+ var syscall = (log.op.toNumber() & 0xf0) == 0xf0;
+ if (syscall) {
+ var op = log.op.toString();
+ }
+ // If a new contract is being created, add to the call stack
+ if (syscall && (op == 'CREATE' || op == "CREATE2")) {
+ var inOff = log.stack.peek(1).valueOf();
+ var inEnd = inOff + log.stack.peek(2).valueOf();
+
+ // Assemble the internal call report and store for completion
+ var call = {
+ type: op,
+ from: toHex(log.contract.getAddress()),
+ input: toHex(log.memory.slice(inOff, inEnd)),
+ gasIn: log.getGas(),
+ gasCost: log.getCost(),
+ value: '0x' + log.stack.peek(0).toString(16)
+ };
+ this.callstack.push(call);
+ this.descended = true
+ return;
+ }
+ // If a contract is being self destructed, gather that as a subcall too
+ if (syscall && op == 'SELFDESTRUCT') {
+ var left = this.callstack.length;
+ if (this.callstack[left-1].calls === undefined) {
+ this.callstack[left-1].calls = [];
+ }
+ this.callstack[left-1].calls.push({
+ type: op,
+ from: toHex(log.contract.getAddress()),
+ to: toHex(toAddress(log.stack.peek(0).toString(16))),
+ gasIn: log.getGas(),
+ gasCost: log.getCost(),
+ value: '0x' + db.getBalance(log.contract.getAddress()).toString(16)
+ });
+ return
+ }
+ // If a new method invocation is being done, add to the call stack
+ if (syscall && (op == 'CALL' || op == 'CALLCODE' || op == 'DELEGATECALL' || op == 'STATICCALL')) {
+ // Skip any pre-compile invocations, those are just fancy opcodes
+ var to = toAddress(log.stack.peek(1).toString(16));
+ if (isPrecompiled(to)) {
+ return
+ }
+ var off = (op == 'DELEGATECALL' || op == 'STATICCALL' ? 0 : 1);
+
+ var inOff = log.stack.peek(2 + off).valueOf();
+ var inEnd = inOff + log.stack.peek(3 + off).valueOf();
+
+ // Assemble the internal call report and store for completion
+ var call = {
+ type: op,
+ from: toHex(log.contract.getAddress()),
+ to: toHex(to),
+ input: toHex(log.memory.slice(inOff, inEnd)),
+ gasIn: log.getGas(),
+ gasCost: log.getCost(),
+ outOff: log.stack.peek(4 + off).valueOf(),
+ outLen: log.stack.peek(5 + off).valueOf()
+ };
+ if (op != 'DELEGATECALL' && op != 'STATICCALL') {
+ call.value = '0x' + log.stack.peek(2).toString(16);
+ }
+ this.callstack.push(call);
+ this.descended = true
+ return;
+ }
+ // If we've just descended into an inner call, retrieve it's true allowance. We
+ // need to extract if from within the call as there may be funky gas dynamics
+ // with regard to requested and actually given gas (2300 stipend, 63/64 rule).
+ if (this.descended) {
+ if (log.getDepth() >= this.callstack.length) {
+ this.callstack[this.callstack.length - 1].gas = log.getGas();
+ } else {
+ // TODO(karalabe): The call was made to a plain account. We currently don't
+ // have access to the true gas amount inside the call and so any amount will
+ // mostly be wrong since it depends on a lot of input args. Skip gas for now.
+ }
+ this.descended = false;
+ }
+ // If an existing call is returning, pop off the call stack
+ if (syscall && op == 'REVERT') {
+ this.callstack[this.callstack.length - 1].error = "execution reverted";
+ return;
+ }
+ if (log.getDepth() == this.callstack.length - 1) {
+ // Pop off the last call and get the execution results
+ var call = this.callstack.pop();
+
+ if (call.type == 'CREATE' || call.type == "CREATE2") {
+ // If the call was a CREATE, retrieve the contract address and output code
+ call.gasUsed = '0x' + bigInt(call.gasIn - call.gasCost - log.getGas()).toString(16);
+ delete call.gasIn; delete call.gasCost;
+
+ var ret = log.stack.peek(0);
+ if (!ret.equals(0)) {
+ call.to = toHex(toAddress(ret.toString(16)));
+ call.output = toHex(db.getCode(toAddress(ret.toString(16))));
+ } else if (call.error === undefined) {
+ call.error = "internal failure"; // TODO(karalabe): surface these faults somehow
+ }
+ } else {
+ // If the call was a contract call, retrieve the gas usage and output
+ if (call.gas !== undefined) {
+ call.gasUsed = '0x' + bigInt(call.gasIn - call.gasCost + call.gas - log.getGas()).toString(16);
+ }
+ var ret = log.stack.peek(0);
+ if (!ret.equals(0)) {
+ call.output = toHex(log.memory.slice(call.outOff, call.outOff + call.outLen));
+ } else if (call.error === undefined) {
+ call.error = "internal failure"; // TODO(karalabe): surface these faults somehow
+ }
+ delete call.gasIn; delete call.gasCost;
+ delete call.outOff; delete call.outLen;
+ }
+ if (call.gas !== undefined) {
+ call.gas = '0x' + bigInt(call.gas).toString(16);
+ }
+ // Inject the call into the previous one
+ var left = this.callstack.length;
+ if (this.callstack[left-1].calls === undefined) {
+ this.callstack[left-1].calls = [];
+ }
+ this.callstack[left-1].calls.push(call);
+ }
+ },
+
+ // fault is invoked when the actual execution of an opcode fails.
+ fault: function(log, db) {
+ // If the topmost call already reverted, don't handle the additional fault again
+ if (this.callstack[this.callstack.length - 1].error !== undefined) {
+ return;
+ }
+ // Pop off the just failed call
+ var call = this.callstack.pop();
+ call.error = log.getError();
+
+ // Consume all available gas and clean any leftovers
+ if (call.gas !== undefined) {
+ call.gas = '0x' + bigInt(call.gas).toString(16);
+ call.gasUsed = call.gas
+ }
+ delete call.gasIn; delete call.gasCost;
+ delete call.outOff; delete call.outLen;
+
+ // Flatten the failed call into its parent
+ var left = this.callstack.length;
+ if (left > 0) {
+ if (this.callstack[left-1].calls === undefined) {
+ this.callstack[left-1].calls = [];
+ }
+ this.callstack[left-1].calls.push(call);
+ return;
+ }
+ // Last call failed too, leave it in the stack
+ this.callstack.push(call);
+ },
+
+ // result is invoked when all the opcodes have been iterated over and returns
+ // the final result of the tracing.
+ result: function(ctx, db) {
+ var result = {
+ type: ctx.type,
+ from: toHex(ctx.from),
+ to: toHex(ctx.to),
+ value: '0x' + ctx.value.toString(16),
+ gas: '0x' + bigInt(ctx.gas).toString(16),
+ gasUsed: '0x' + bigInt(ctx.gasUsed).toString(16),
+ input: toHex(ctx.input),
+ output: toHex(ctx.output),
+ time: ctx.time,
+ };
+ if (this.callstack[0].calls !== undefined) {
+ result.calls = this.callstack[0].calls;
+ }
+ if (this.callstack[0].error !== undefined) {
+ result.error = this.callstack[0].error;
+ } else if (ctx.error !== undefined) {
+ result.error = ctx.error;
+ }
+ if (result.error !== undefined && (result.error !== "execution reverted" || result.output ==="0x")) {
+ delete result.output;
+ }
+ return this.finalize(result);
+ },
+
+ // finalize recreates a call object using the final desired field oder for json
+ // serialization. This is a nicety feature to pass meaningfully ordered results
+ // to users who don't interpret it, just display it.
+ finalize: function(call) {
+ var sorted = {
+ type: call.type,
+ from: call.from,
+ to: call.to,
+ value: call.value,
+ gas: call.gas,
+ gasUsed: call.gasUsed,
+ input: call.input,
+ output: call.output,
+ error: call.error,
+ time: call.time,
+ calls: call.calls,
+ }
+ for (var key in sorted) {
+ if (sorted[key] === undefined) {
+ delete sorted[key];
+ }
+ }
+ if (sorted.calls !== undefined) {
+ for (var i=0; i 0 {
+ jst.err = jst.reason
+ return
+ }
- case string:
- jst.vm.PushString(val)
+ *jst.frame.typ = typ.String()
+ *jst.frame.from = from
+ *jst.frame.to = to
+ jst.frame.input = common.CopyBytes(input)
+ *jst.frame.gas = uint(gas)
+ jst.frame.value = nil
+ if value != nil {
+ jst.frame.value = new(big.Int).SetBytes(value.Bytes())
+ }
- case []byte:
- ptr := jst.vm.PushFixedBuffer(len(val))
- copy(makeSlice(ptr, uint(len(val))), val)
+ if _, err := jst.call(true, "enter", "frame"); err != nil {
+ jst.err = wrapError("enter", err)
+ }
+}
- case common.Address:
- ptr := jst.vm.PushFixedBuffer(20)
- copy(makeSlice(ptr, 20), val[:])
+// CaptureExit is called when EVM exits a scope, even if the scope didn't
+// execute any code.
+func (jst *Tracer) CaptureExit(output []byte, gasUsed uint64, err error) {
+ if !jst.traceCallFrames {
+ return
+ }
+ if jst.err != nil {
+ return
+ }
+ // If tracing was interrupted, set the error and stop
+ if atomic.LoadUint32(&jst.interrupt) > 0 {
+ jst.err = jst.reason
+ return
+ }
- case *big.Int:
- pushBigInt(val, jst.vm)
+ jst.frameResult.output = common.CopyBytes(output)
+ *jst.frameResult.gasUsed = uint(gasUsed)
+ jst.frameResult.errorValue = nil
+ if err != nil {
+ jst.frameResult.errorValue = new(string)
+ *jst.frameResult.errorValue = err.Error()
+ }
- case int:
- jst.vm.PushInt(val)
+ if _, err := jst.call(true, "exit", "frameResult"); err != nil {
+ jst.err = wrapError("exit", err)
+ }
+}
- case common.Hash:
- ptr := jst.vm.PushFixedBuffer(32)
- copy(makeSlice(ptr, 32), val[:])
+// GetResult calls the Javascript 'result' function and returns its value, or any accumulated error
+func (jst *Tracer) GetResult() (json.RawMessage, error) {
+ // Transform the context into a JavaScript object and inject into the state
+ obj := jst.vm.PushObject()
- default:
- panic(fmt.Sprintf("unsupported type: %T", val))
- }
- jst.vm.PutPropString(obj, key)
+ for key, val := range jst.ctx {
+ jst.addToObj(obj, key, val)
}
jst.vm.PutPropString(jst.stateObject, "ctx")
@@ -699,3 +838,35 @@ func (jst *Tracer) GetResult() (json.RawMessage, error) {
return result, jst.err
}
+
+// addToObj pushes a field to a JS object.
+func (jst *Tracer) addToObj(obj int, key string, val interface{}) {
+ pushValue(jst.vm, val)
+ jst.vm.PutPropString(obj, key)
+}
+
+func pushValue(ctx *duktape.Context, val interface{}) {
+ switch val := val.(type) {
+ case uint64:
+ ctx.PushUint(uint(val))
+ case string:
+ ctx.PushString(val)
+ case []byte:
+ ptr := ctx.PushFixedBuffer(len(val))
+ copy(makeSlice(ptr, uint(len(val))), val)
+ case common.Address:
+ ptr := ctx.PushFixedBuffer(20)
+ copy(makeSlice(ptr, 20), val[:])
+ case *big.Int:
+ pushBigInt(val, ctx)
+ case int:
+ ctx.PushInt(val)
+ case uint:
+ ctx.PushUint(val)
+ case common.Hash:
+ ptr := ctx.PushFixedBuffer(32)
+ copy(makeSlice(ptr, 32), val[:])
+ default:
+ panic(fmt.Sprintf("unsupported type: %T", val))
+ }
+}
diff --git a/eth/tracers/tracer_test.go b/eth/tracers/tracer_test.go
index d2d3e57c4a57a..3decca225d7a1 100644
--- a/eth/tracers/tracer_test.go
+++ b/eth/tracers/tracer_test.go
@@ -236,3 +236,35 @@ func TestIsPrecompile(t *testing.T) {
t.Errorf("Tracer should consider blake2f as precompile in istanbul")
}
}
+
+func TestEnterExit(t *testing.T) {
+ // test that either both or none of enter() and exit() are defined
+ if _, err := New("{step: function() {}, fault: function() {}, result: function() { return null; }, enter: function() {}}", new(Context)); err == nil {
+ t.Fatal("tracer creation should've failed without exit() definition")
+ }
+ if _, err := New("{step: function() {}, fault: function() {}, result: function() { return null; }, enter: function() {}, exit: function() {}}", new(Context)); err != nil {
+ t.Fatal(err)
+ }
+
+ // test that the enter and exit method are correctly invoked and the values passed
+ tracer, err := New("{enters: 0, exits: 0, enterGas: 0, gasUsed: 0, step: function() {}, fault: function() {}, result: function() { return {enters: this.enters, exits: this.exits, enterGas: this.enterGas, gasUsed: this.gasUsed} }, enter: function(frame) { this.enters++; this.enterGas = frame.getGas(); }, exit: function(res) { this.exits++; this.gasUsed = res.getGasUsed(); }}", new(Context))
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ scope := &vm.ScopeContext{
+ Contract: vm.NewContract(&account{}, &account{}, big.NewInt(0), 0),
+ }
+
+ tracer.CaptureEnter(vm.CALL, scope.Contract.Caller(), scope.Contract.Address(), []byte{}, 1000, new(big.Int))
+ tracer.CaptureExit([]byte{}, 400, nil)
+
+ have, err := tracer.GetResult()
+ if err != nil {
+ t.Fatal(err)
+ }
+ want := `{"enters":1,"exits":1,"enterGas":1000,"gasUsed":400}`
+ if string(have) != want {
+ t.Errorf("Number of invocations of enter() and exit() is wrong. Have %s, want %s\n", have, want)
+ }
+}
diff --git a/eth/tracers/tracers_test.go b/eth/tracers/tracers_test.go
index e738aa3a3d92e..fb817fbc56673 100644
--- a/eth/tracers/tracers_test.go
+++ b/eth/tracers/tracers_test.go
@@ -203,21 +203,25 @@ func TestPrestateTracerCreate2(t *testing.T) {
// Iterates over all the input-output datasets in the tracer test harness and
// runs the JavaScript tracers against them.
-func TestCallTracer(t *testing.T) {
- files, err := ioutil.ReadDir("testdata")
+func TestCallTracerLegacy(t *testing.T) {
+ testCallTracer("callTracerLegacy", "call_tracer_legacy", t)
+}
+
+func testCallTracer(tracer string, dirPath string, t *testing.T) {
+ files, err := ioutil.ReadDir(filepath.Join("testdata", dirPath))
if err != nil {
t.Fatalf("failed to retrieve tracer test suite: %v", err)
}
for _, file := range files {
- if !strings.HasPrefix(file.Name(), "call_tracer_") {
+ if !strings.HasSuffix(file.Name(), ".json") {
continue
}
file := file // capture range variable
- t.Run(camel(strings.TrimSuffix(strings.TrimPrefix(file.Name(), "call_tracer_"), ".json")), func(t *testing.T) {
+ t.Run(camel(strings.TrimSuffix(file.Name(), ".json")), func(t *testing.T) {
t.Parallel()
// Call tracer test found, read if from disk
- blob, err := ioutil.ReadFile(filepath.Join("testdata", file.Name()))
+ blob, err := ioutil.ReadFile(filepath.Join("testdata", dirPath, file.Name()))
if err != nil {
t.Fatalf("failed to read testcase: %v", err)
}
@@ -248,7 +252,7 @@ func TestCallTracer(t *testing.T) {
_, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false)
// Create the tracer, the EVM environment and run it
- tracer, err := New("callTracer", new(Context))
+ tracer, err := New(tracer, new(Context))
if err != nil {
t.Fatalf("failed to create call tracer: %v", err)
}
@@ -283,6 +287,10 @@ func TestCallTracer(t *testing.T) {
}
}
+func TestCallTracer(t *testing.T) {
+ testCallTracer("callTracer", "call_tracer", t)
+}
+
// jsonEqual is similar to reflect.DeepEqual, but does a 'bounce' via json prior to
// comparison
func jsonEqual(x, y interface{}) bool {
@@ -378,3 +386,73 @@ func BenchmarkTransactionTrace(b *testing.B) {
tracer.Reset()
}
}
+
+func BenchmarkTracers(b *testing.B) {
+ files, err := ioutil.ReadDir(filepath.Join("testdata", "call_tracer"))
+ if err != nil {
+ b.Fatalf("failed to retrieve tracer test suite: %v", err)
+ }
+ for _, file := range files {
+ if !strings.HasSuffix(file.Name(), ".json") {
+ continue
+ }
+ file := file // capture range variable
+ b.Run(camel(strings.TrimSuffix(file.Name(), ".json")), func(b *testing.B) {
+ blob, err := ioutil.ReadFile(filepath.Join("testdata", "call_tracer", file.Name()))
+ if err != nil {
+ b.Fatalf("failed to read testcase: %v", err)
+ }
+ test := new(callTracerTest)
+ if err := json.Unmarshal(blob, test); err != nil {
+ b.Fatalf("failed to parse testcase: %v", err)
+ }
+ benchTracer("callTracer", test, b)
+ })
+ }
+}
+
+func benchTracer(tracerName string, test *callTracerTest, b *testing.B) {
+ // Configure a blockchain with the given prestate
+ tx := new(types.Transaction)
+ if err := rlp.DecodeBytes(common.FromHex(test.Input), tx); err != nil {
+ b.Fatalf("failed to parse testcase input: %v", err)
+ }
+ signer := types.MakeSigner(test.Genesis.Config, new(big.Int).SetUint64(uint64(test.Context.Number)))
+ msg, err := tx.AsMessage(signer, nil)
+ if err != nil {
+ b.Fatalf("failed to prepare transaction for tracing: %v", err)
+ }
+ origin, _ := signer.Sender(tx)
+ txContext := vm.TxContext{
+ Origin: origin,
+ GasPrice: tx.GasPrice(),
+ }
+ context := vm.BlockContext{
+ CanTransfer: core.CanTransfer,
+ Transfer: core.Transfer,
+ Coinbase: test.Context.Miner,
+ BlockNumber: new(big.Int).SetUint64(uint64(test.Context.Number)),
+ Time: new(big.Int).SetUint64(uint64(test.Context.Time)),
+ Difficulty: (*big.Int)(test.Context.Difficulty),
+ GasLimit: uint64(test.Context.GasLimit),
+ }
+ _, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false)
+
+ // Create the tracer, the EVM environment and run it
+ tracer, err := New(tracerName, new(Context))
+ if err != nil {
+ b.Fatalf("failed to create call tracer: %v", err)
+ }
+ evm := vm.NewEVM(context, txContext, statedb, test.Genesis.Config, vm.Config{Debug: true, Tracer: tracer})
+
+ b.ReportAllocs()
+ b.ResetTimer()
+ for i := 0; i < b.N; i++ {
+ snap := statedb.Snapshot()
+ st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas()))
+ if _, err = st.TransitionDb(); err != nil {
+ b.Fatalf("failed to execute transaction: %v", err)
+ }
+ statedb.RevertToSnapshot(snap)
+ }
+}