From 50ad4e3f60ac2c35ed859eddb09f16666045def7 Mon Sep 17 00:00:00 2001 From: Delweng Date: Mon, 27 Dec 2021 10:09:12 +0800 Subject: [PATCH] [R4R]Feature/backport geth native trace (#581) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * eth/tracers: implement debug.intermediateRoots (#23594) This PR implements a new debug method, which I've talked briefly about to some other client developers. It allows the caller to obtain the intermediate state roots for a block (which might be either a canon block or a 'bad' block). Signed-off-by: wenbiao * core, rpc: disable memory output by default in traces (#23558) * core: cmd: invert disableMemory * core: fix missed inversion * cmd/evm: preserve Flags but change default value * Apply suggestions from code review Co-authored-by: Martin Holst Swende Co-authored-by: Martin Holst Swende Signed-off-by: wenbiao * eth/tracers: abort evm execution when trace is aborted (#23580) Signed-off-by: wenbiao * eth/tracers: avoid unsyncronized mutations on trie database (#23632) This PR fixes an issue in traceChain, where the statedb Commit operation was performed asynchronously with dereference-operations agains the underlying trie.Database instance. Due to how the reference counting works within the trie database (where parent count is recursively updated when new parents are added), doing dereferencing in the middle of Commit can cause the refcount to become wrong, leading to an inconsistent state. This was fixed by doing Commit/Deref from the same routine. Signed-off-by: wenbiao * core,eth: call frame tracing (#23087) This change introduces 2 new optional methods; `enter()` and `exit()` for js tracers, and makes `step()` optiona. The two new methods are invoked when entering and exiting a call frame (but not invoked for the outermost scope, which has it's own methods). Currently these are the data fields passed to each of them: enter: type (opcode), from, to, input, gas, value exit: output, gasUsed, error The PR also comes with a re-write of the callTracer. As a backup we keep the previous tracing script under the name `callTracerLegacy`. Behaviour of both tracers are equivalent for the most part, although there are some small differences (improvements), where the new tracer is more correct / has more information. Signed-off-by: wenbiao * eth/tracers: re-write of 4byte tracer using enter/exit (#23622) * eth/tracers: add re-write of 4byte tracer using enter/exit * eth/tracers: fix 4byte indent Signed-off-by: wenbiao * eth/tracers: tx.BaseFee not implemented Signed-off-by: wenbiao * eth/tracers: do the JSON serialization via .js to capture C faults Signed-off-by: wenbiao * eth/tracers: fix callTracer fault handling (#23667) * eth/tracers: fix calltracer fault handling * eth/tracers: fix calltracer indentation Signed-off-by: wenbiao * eth/tracers: invoke enter/exit on 0-value calls to inex accounts (#23828) Signed-off-by: wenbiao * eth: make traceChain avoid OOM on long-running tracing (#23736) This PR changes long-running chain tracing, so that it at some points releases the memory trie db, and switch over to a fresh disk-backed trie. Signed-off-by: wenbiao * eth/tracers: expose contextual infos (block hash, tx hash, tx index) Signed-off-by: wenbiao * eth/tracers: redefine Context Signed-off-by: wenbiao * eth/tracers: support for golang tracers + add golang callTracer (#23708) * eth/tracers: add basic native loader * eth/tracers: add GetResult to tracer interface * eth/tracers: add native call tracer * eth/tracers: fix call tracer json result * eth/tracers: minor fix * eth/tracers: fix * eth/tracers: fix benchTracer * eth/tracers: test native call tracer * eth/tracers: fix * eth/tracers: rm extra make Co-authored-by: Martin Holst Swende * eth/tracers: rm extra make * eth/tracers: make callFrame private * eth/tracers: clean-up and comments * eth/tracers: add license * eth/tracers: rework the model a bit * eth/tracers: move tracecall tests to subpackage * cmd/geth: load native tracers * eth/tracers: minor fix * eth/tracers: impl stop * eth/tracers: add native noop tracer * renamings Co-authored-by: Martin Holst Swende * eth/tracers: more renamings * eth/tracers: make jstracer non-exported, avoid cast * eth/tracers, core/vm: rename vm.Tracer to vm.EVMLogger for clarity * eth/tracers: minor comment fix * eth/tracers/testing: lint nitpicks * core,eth: cancel evm on nativecalltracer stop * Revert "core,eth: cancel evm on nativecalltracer stop" This reverts commit 01bb908790a369c1bb9d3937df9325c6857bf855. * eth/tracers: linter nits * eth/tracers: fix output on err Co-authored-by: Martin Holst Swende Signed-off-by: wenbiao * eth/tracers: make native calltracer default (#23867) Signed-off-by: wenbiao * eth/tracers: package restructuring (#23857) * eth/tracers: restructure tracer package * core/vm/runtime: load js tracers * eth/tracers: mv bigint js code to own file * eth/tracers: add method docs for native tracers * eth/tracers: minor doc fix * core,eth: cancel evm on nativecalltracer stop * core/vm: fix failing test Co-authored-by: Sina Mahmoodi Signed-off-by: wenbiao * eth/tracers: ethapi.TransactionArgs was not merged Signed-off-by: wenbiao * eth/tracers: fix the api_test with ErrInsufficientFunds to ErrInsufficientFundsForTransfer Signed-off-by: wenbiao * eth/tracers: check posa before statedb.Prepare in IntermiateRoots api Signed-off-by: wenbiao * eth/tracers: make js calltracer default, compatible with old version Signed-off-by: wenbiao * eth/tracers: fix the default callTrace name of callTracerJs Signed-off-by: wenbiao * Revert "eth/tracers: fix the default callTrace name of callTracerJs" This reverts commit 62a3bc215d9f07e422a4c659289bb3ba4f9ed2fa. Signed-off-by: wenbiao * Revert "eth/tracers: make js calltracer default, compatible with old version" This reverts commit 85ef42c0ea651f0b228d4209b1b2598b24e12f1f. Signed-off-by: wenbiao * eth/tracers: fix the variable race condition Signed-off-by: wenbiao Co-authored-by: Martin Holst Swende Co-authored-by: Marius van der Wijden Co-authored-by: Sina Mahmoodi <1591639+s1na@users.noreply.github.com> Co-authored-by: Péter Szilágyi Co-authored-by: Sina Mahmoodi --- cmd/evm/disasm.go | 2 +- cmd/evm/internal/t8ntool/execution.go | 2 +- cmd/evm/internal/t8ntool/flags.go | 4 +- cmd/evm/internal/t8ntool/transition.go | 16 +- cmd/evm/main.go | 6 +- cmd/evm/runner.go | 12 +- cmd/evm/staterunner.go | 10 +- cmd/geth/main.go | 5 + core/vm/access_list_tracer.go | 9 +- core/vm/evm.go | 76 +- core/vm/instructions.go | 4 + core/vm/interpreter.go | 20 +- core/vm/logger.go | 62 +- core/vm/logger_json.go | 19 +- core/vm/logger_test.go | 3 +- core/vm/runtime/runtime_test.go | 272 +++++- core/vm/stack.go | 2 +- eth/api_backend.go | 4 +- eth/state_accessor.go | 26 +- eth/tracers/api.go | 216 +++-- eth/tracers/api_test.go | 337 +++---- .../internal/tracers/call_tracer_js.js | 112 +++ .../internal/tracetest/calltrace_test.go | 394 ++++++++ .../testdata/call_tracer/create.json} | 0 .../testdata/call_tracer/deep_calls.json} | 0 .../testdata/call_tracer/delegatecall.json} | 0 .../inner_create_oog_outer_throw.json | 77 ++ .../testdata/call_tracer/inner_instafail.json | 63 ++ .../inner_throw_outer_revert.json} | 0 .../tracetest/testdata/call_tracer/oog.json} | 0 .../testdata/call_tracer/revert.json} | 0 .../testdata/call_tracer/revert_reason.json} | 0 .../testdata/call_tracer/selfdestruct.json | 75 ++ .../testdata/call_tracer/simple.json | 80 ++ .../testdata/call_tracer/throw.json} | 0 .../testdata/call_tracer_legacy/create.json | 58 ++ .../call_tracer_legacy/deep_calls.json | 415 +++++++++ .../call_tracer_legacy/delegatecall.json | 97 ++ .../inner_create_oog_outer_throw.json} | 0 .../call_tracer_legacy/inner_instafail.json} | 0 .../inner_throw_outer_revert.json | 81 ++ .../testdata/call_tracer_legacy/oog.json | 60 ++ .../testdata/call_tracer_legacy/revert.json | 58 ++ .../call_tracer_legacy/revert_reason.json | 64 ++ .../call_tracer_legacy/selfdestruct.json | 73 ++ .../testdata/call_tracer_legacy/simple.json} | 0 .../testdata/call_tracer_legacy/throw.json | 62 ++ eth/tracers/{tracer.go => js/bigint.go} | 636 +------------ .../js/internal/tracers/4byte_tracer.js | 65 ++ .../internal/tracers/4byte_tracer_legacy.js} | 0 .../{ => js}/internal/tracers/assets.go | 102 +- .../internal/tracers/bigram_tracer.js | 0 .../js/internal/tracers/call_tracer_js.js | 112 +++ .../internal/tracers/call_tracer_legacy.js} | 0 .../internal/tracers/evmdis_tracer.js | 0 .../{ => js}/internal/tracers/noop_tracer.js | 0 .../internal/tracers/opcount_tracer.js | 0 .../internal/tracers/prestate_tracer.js | 0 .../{ => js}/internal/tracers/tracers.go | 0 .../internal/tracers/trigram_tracer.js | 0 .../internal/tracers/unigram_tracer.js | 0 eth/tracers/js/tracer.go | 880 ++++++++++++++++++ eth/tracers/{ => js}/tracer_test.go | 123 ++- eth/tracers/native/call.go | 182 ++++ eth/tracers/native/noop.go | 74 ++ eth/tracers/native/tracer.go | 79 ++ eth/tracers/tracers.go | 65 +- eth/tracers/tracers_test.go | 260 +----- internal/web3ext/web3ext.go | 6 + les/api_backend.go | 2 +- tests/state_test.go | 2 +- 71 files changed, 4123 insertions(+), 1341 deletions(-) create mode 100644 eth/tracers/internal/tracers/call_tracer_js.js create mode 100644 eth/tracers/internal/tracetest/calltrace_test.go rename eth/tracers/{testdata/call_tracer_create.json => internal/tracetest/testdata/call_tracer/create.json} (100%) rename eth/tracers/{testdata/call_tracer_deep_calls.json => internal/tracetest/testdata/call_tracer/deep_calls.json} (100%) rename eth/tracers/{testdata/call_tracer_delegatecall.json => internal/tracetest/testdata/call_tracer/delegatecall.json} (100%) create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer/inner_create_oog_outer_throw.json create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer/inner_instafail.json rename eth/tracers/{testdata/call_tracer_inner_throw_outer_revert.json => internal/tracetest/testdata/call_tracer/inner_throw_outer_revert.json} (100%) rename eth/tracers/{testdata/call_tracer_oog.json => internal/tracetest/testdata/call_tracer/oog.json} (100%) rename eth/tracers/{testdata/call_tracer_revert.json => internal/tracetest/testdata/call_tracer/revert.json} (100%) rename eth/tracers/{testdata/call_tracer_revert_reason.json => internal/tracetest/testdata/call_tracer/revert_reason.json} (100%) create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer/selfdestruct.json create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer/simple.json rename eth/tracers/{testdata/call_tracer_throw.json => internal/tracetest/testdata/call_tracer/throw.json} (100%) create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/create.json create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/deep_calls.json create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/delegatecall.json rename eth/tracers/{testdata/call_tracer_inner_create_oog_outer_throw.json => internal/tracetest/testdata/call_tracer_legacy/inner_create_oog_outer_throw.json} (100%) rename eth/tracers/{testdata/call_tracer_inner_instafail.json => internal/tracetest/testdata/call_tracer_legacy/inner_instafail.json} (100%) create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/inner_throw_outer_revert.json create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/oog.json create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/revert.json create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/revert_reason.json create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/selfdestruct.json rename eth/tracers/{testdata/call_tracer_simple.json => internal/tracetest/testdata/call_tracer_legacy/simple.json} (100%) create mode 100644 eth/tracers/internal/tracetest/testdata/call_tracer_legacy/throw.json rename eth/tracers/{tracer.go => js/bigint.go} (57%) create mode 100644 eth/tracers/js/internal/tracers/4byte_tracer.js rename eth/tracers/{internal/tracers/4byte_tracer.js => js/internal/tracers/4byte_tracer_legacy.js} (100%) rename eth/tracers/{ => js}/internal/tracers/assets.go (57%) rename eth/tracers/{ => js}/internal/tracers/bigram_tracer.js (100%) create mode 100644 eth/tracers/js/internal/tracers/call_tracer_js.js rename eth/tracers/{internal/tracers/call_tracer.js => js/internal/tracers/call_tracer_legacy.js} (100%) rename eth/tracers/{ => js}/internal/tracers/evmdis_tracer.js (100%) rename eth/tracers/{ => js}/internal/tracers/noop_tracer.js (100%) rename eth/tracers/{ => js}/internal/tracers/opcount_tracer.js (100%) rename eth/tracers/{ => js}/internal/tracers/prestate_tracer.js (100%) rename eth/tracers/{ => js}/internal/tracers/tracers.go (100%) rename eth/tracers/{ => js}/internal/tracers/trigram_tracer.js (100%) rename eth/tracers/{ => js}/internal/tracers/unigram_tracer.js (100%) create mode 100644 eth/tracers/js/tracer.go rename eth/tracers/{ => js}/tracer_test.go (51%) create mode 100644 eth/tracers/native/call.go create mode 100644 eth/tracers/native/noop.go create mode 100644 eth/tracers/native/tracer.go diff --git a/cmd/evm/disasm.go b/cmd/evm/disasm.go index 68a09cbf50cd4..f9719497fe10b 100644 --- a/cmd/evm/disasm.go +++ b/cmd/evm/disasm.go @@ -46,7 +46,7 @@ func disasmCmd(ctx *cli.Context) error { case ctx.GlobalIsSet(InputFlag.Name): in = ctx.GlobalString(InputFlag.Name) default: - return errors.New("Missing filename or --input value") + return errors.New("missing filename or --input value") } code := strings.TrimSpace(in) diff --git a/cmd/evm/internal/t8ntool/execution.go b/cmd/evm/internal/t8ntool/execution.go index 0471037ed8e2a..2a9426540a89f 100644 --- a/cmd/evm/internal/t8ntool/execution.go +++ b/cmd/evm/internal/t8ntool/execution.go @@ -82,7 +82,7 @@ type stEnvMarshaling struct { // Apply applies a set of transactions to a pre-state func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig, txs types.Transactions, miningReward int64, - getTracerFn func(txIndex int, txHash common.Hash) (tracer vm.Tracer, err error)) (*state.StateDB, *ExecutionResult, error) { + getTracerFn func(txIndex int, txHash common.Hash) (tracer vm.EVMLogger, err error)) (*state.StateDB, *ExecutionResult, error) { // Capture errors for BLOCKHASH operation, if we haven't been supplied the // required blockhashes diff --git a/cmd/evm/internal/t8ntool/flags.go b/cmd/evm/internal/t8ntool/flags.go index a599462cc61dc..a3ba9acc2a100 100644 --- a/cmd/evm/internal/t8ntool/flags.go +++ b/cmd/evm/internal/t8ntool/flags.go @@ -30,7 +30,7 @@ var ( Name: "trace", Usage: "Output full trace logs to files .jsonl", } - TraceDisableMemoryFlag = cli.BoolFlag{ + TraceDisableMemoryFlag = cli.BoolTFlag{ Name: "trace.nomemory", Usage: "Disable full memory dump in traces", } @@ -38,7 +38,7 @@ var ( Name: "trace.nostack", Usage: "Disable stack output in traces", } - TraceDisableReturnDataFlag = cli.BoolFlag{ + TraceDisableReturnDataFlag = cli.BoolTFlag{ Name: "trace.noreturndata", Usage: "Disable return data output in traces", } diff --git a/cmd/evm/internal/t8ntool/transition.go b/cmd/evm/internal/t8ntool/transition.go index fedcd12435693..f5c0dd42f0ba8 100644 --- a/cmd/evm/internal/t8ntool/transition.go +++ b/cmd/evm/internal/t8ntool/transition.go @@ -81,10 +81,10 @@ func Main(ctx *cli.Context) error { var ( err error - tracer vm.Tracer + tracer vm.EVMLogger baseDir = "" ) - var getTracer func(txIndex int, txHash common.Hash) (vm.Tracer, error) + var getTracer func(txIndex int, txHash common.Hash) (vm.EVMLogger, error) // If user specified a basedir, make sure it exists if ctx.IsSet(OutputBasedir.Name) { @@ -99,10 +99,10 @@ func Main(ctx *cli.Context) error { if ctx.Bool(TraceFlag.Name) { // Configure the EVM logger logConfig := &vm.LogConfig{ - DisableStack: ctx.Bool(TraceDisableStackFlag.Name), - DisableMemory: ctx.Bool(TraceDisableMemoryFlag.Name), - DisableReturnData: ctx.Bool(TraceDisableReturnDataFlag.Name), - Debug: true, + DisableStack: ctx.Bool(TraceDisableStackFlag.Name), + EnableMemory: !ctx.Bool(TraceDisableMemoryFlag.Name), + EnableReturnData: !ctx.Bool(TraceDisableReturnDataFlag.Name), + Debug: true, } var prevFile *os.File // This one closes the last file @@ -111,7 +111,7 @@ func Main(ctx *cli.Context) error { prevFile.Close() } }() - getTracer = func(txIndex int, txHash common.Hash) (vm.Tracer, error) { + getTracer = func(txIndex int, txHash common.Hash) (vm.EVMLogger, error) { if prevFile != nil { prevFile.Close() } @@ -123,7 +123,7 @@ func Main(ctx *cli.Context) error { return vm.NewJSONLogger(logConfig, traceFile), nil } } else { - getTracer = func(txIndex int, txHash common.Hash) (tracer vm.Tracer, err error) { + getTracer = func(txIndex int, txHash common.Hash) (tracer vm.EVMLogger, err error) { return nil, nil } } diff --git a/cmd/evm/main.go b/cmd/evm/main.go index 8a3e4e0ea253f..d78970e7dcdc0 100644 --- a/cmd/evm/main.go +++ b/cmd/evm/main.go @@ -113,7 +113,7 @@ var ( Name: "receiver", Usage: "The transaction receiver (execution context)", } - DisableMemoryFlag = cli.BoolFlag{ + DisableMemoryFlag = cli.BoolTFlag{ Name: "nomemory", Usage: "disable memory output", } @@ -125,9 +125,9 @@ var ( Name: "nostorage", Usage: "disable storage output", } - DisableReturnDataFlag = cli.BoolFlag{ + DisableReturnDataFlag = cli.BoolTFlag{ Name: "noreturndata", - Usage: "disable return data output", + Usage: "enable return data output", } EVMInterpreterFlag = cli.StringFlag{ Name: "vm.evm", diff --git a/cmd/evm/runner.go b/cmd/evm/runner.go index 4063767cb8f48..f522233e71b48 100644 --- a/cmd/evm/runner.go +++ b/cmd/evm/runner.go @@ -108,15 +108,15 @@ func runCmd(ctx *cli.Context) error { glogger.Verbosity(log.Lvl(ctx.GlobalInt(VerbosityFlag.Name))) log.Root().SetHandler(glogger) logconfig := &vm.LogConfig{ - DisableMemory: ctx.GlobalBool(DisableMemoryFlag.Name), - DisableStack: ctx.GlobalBool(DisableStackFlag.Name), - DisableStorage: ctx.GlobalBool(DisableStorageFlag.Name), - DisableReturnData: ctx.GlobalBool(DisableReturnDataFlag.Name), - Debug: ctx.GlobalBool(DebugFlag.Name), + EnableMemory: !ctx.GlobalBool(DisableMemoryFlag.Name), + DisableStack: ctx.GlobalBool(DisableStackFlag.Name), + DisableStorage: ctx.GlobalBool(DisableStorageFlag.Name), + EnableReturnData: !ctx.GlobalBool(DisableReturnDataFlag.Name), + Debug: ctx.GlobalBool(DebugFlag.Name), } var ( - tracer vm.Tracer + tracer vm.EVMLogger debugLogger *vm.StructLogger statedb *state.StateDB chainConfig *params.ChainConfig diff --git a/cmd/evm/staterunner.go b/cmd/evm/staterunner.go index c4df936c75ffe..bfc243b471d66 100644 --- a/cmd/evm/staterunner.go +++ b/cmd/evm/staterunner.go @@ -59,13 +59,13 @@ func stateTestCmd(ctx *cli.Context) error { // Configure the EVM logger config := &vm.LogConfig{ - DisableMemory: ctx.GlobalBool(DisableMemoryFlag.Name), - DisableStack: ctx.GlobalBool(DisableStackFlag.Name), - DisableStorage: ctx.GlobalBool(DisableStorageFlag.Name), - DisableReturnData: ctx.GlobalBool(DisableReturnDataFlag.Name), + EnableMemory: !ctx.GlobalBool(DisableMemoryFlag.Name), + DisableStack: ctx.GlobalBool(DisableStackFlag.Name), + DisableStorage: ctx.GlobalBool(DisableStorageFlag.Name), + EnableReturnData: !ctx.GlobalBool(DisableReturnDataFlag.Name), } var ( - tracer vm.Tracer + tracer vm.EVMLogger debugger *vm.StructLogger ) switch { diff --git a/cmd/geth/main.go b/cmd/geth/main.go index e896c7d659821..3e2585fed67df 100644 --- a/cmd/geth/main.go +++ b/cmd/geth/main.go @@ -39,6 +39,11 @@ import ( "github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/metrics" "github.com/ethereum/go-ethereum/node" + + // Force-load the tracer engines to trigger registration + _ "github.com/ethereum/go-ethereum/eth/tracers/js" + _ "github.com/ethereum/go-ethereum/eth/tracers/native" + "gopkg.in/urfave/cli.v1" ) diff --git a/core/vm/access_list_tracer.go b/core/vm/access_list_tracer.go index b5bc961c84376..d7993b4f73bb6 100644 --- a/core/vm/access_list_tracer.go +++ b/core/vm/access_list_tracer.go @@ -141,7 +141,7 @@ func (a *AccessListTracer) CaptureStart(env *EVM, from common.Address, to common } // CaptureState captures all opcodes that touch storage or addresses and adds them to the accesslist. -func (a *AccessListTracer) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) { +func (a *AccessListTracer) CaptureState(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) { stack := scope.Stack if (op == SLOAD || op == SSTORE) && stack.len() >= 1 { slot := common.Hash(stack.data[stack.len()-1].Bytes32()) @@ -161,11 +161,16 @@ func (a *AccessListTracer) CaptureState(env *EVM, pc uint64, op OpCode, gas, cos } } -func (*AccessListTracer) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) { +func (*AccessListTracer) CaptureFault(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) { } 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 26a5fa7c450f5..53e2e8797b650 100644 --- a/core/vm/evm.go +++ b/core/vm/evm.go @@ -232,9 +232,14 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas if !evm.StateDB.Exist(addr) { if !isPrecompile && evm.chainRules.IsEIP158 && value.Sign() == 0 { // Calling a non existing account, don't do anything, but ping the tracer - if evm.vmConfig.Debug && evm.depth == 0 { - evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value) - evm.vmConfig.Tracer.CaptureEnd(ret, 0, 0, nil) + if evm.vmConfig.Debug { + if evm.depth == 0 { + evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value) + evm.vmConfig.Tracer.CaptureEnd(ret, 0, 0, nil) + } else { + evm.vmConfig.Tracer.CaptureEnter(CALL, caller.Address(), addr, input, gas, value) + evm.vmConfig.Tracer.CaptureExit(ret, 0, nil) + } } return nil, gas, nil } @@ -243,11 +248,19 @@ 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.vmConfig.Debug && evm.depth == 0 { - evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value) - defer func(startGas uint64, startTime time.Time) { // Lazy evaluation of the parameters - evm.vmConfig.Tracer.CaptureEnd(ret, startGas-gas, time.Since(startTime), err) - }(gas, time.Now()) + if evm.vmConfig.Debug { + if evm.depth == 0 { + evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value) + defer func(startGas uint64, startTime time.Time) { // Lazy evaluation of the parameters + evm.vmConfig.Tracer.CaptureEnd(ret, startGas-gas, time.Since(startTime), err) + }(gas, time.Now()) + } else { + // Handle tracer events for entering and exiting a call frame + evm.vmConfig.Tracer.CaptureEnter(CALL, caller.Address(), addr, input, gas, value) + defer func(startGas uint64) { + evm.vmConfig.Tracer.CaptureExit(ret, startGas-gas, err) + }(gas) + } } if isPrecompile { @@ -307,6 +320,14 @@ 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.vmConfig.Debug { + evm.vmConfig.Tracer.CaptureEnter(CALLCODE, caller.Address(), addr, input, gas, value) + defer func(startGas uint64) { + evm.vmConfig.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) @@ -343,6 +364,14 @@ 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.vmConfig.Debug { + evm.vmConfig.Tracer.CaptureEnter(DELEGATECALL, caller.Address(), addr, input, gas, nil) + defer func(startGas uint64) { + evm.vmConfig.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) @@ -388,6 +417,14 @@ 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.vmConfig.Debug { + evm.vmConfig.Tracer.CaptureEnter(STATICCALL, caller.Address(), addr, input, gas, nil) + defer func(startGas uint64) { + evm.vmConfig.Tracer.CaptureExit(ret, startGas-gas, err) + }(gas) + } + if p, isPrecompile := evm.precompile(addr); isPrecompile { ret, gas, err = RunPrecompiledContract(p, input, gas) } else { @@ -427,7 +464,7 @@ 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) { @@ -465,9 +502,14 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64, return nil, address, gas, nil } - if evm.vmConfig.Debug && evm.depth == 0 { - evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), address, true, codeAndHash.code, gas, value) + if evm.vmConfig.Debug { + if evm.depth == 0 { + evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), address, true, codeAndHash.code, gas, value) + } else { + evm.vmConfig.Tracer.CaptureEnter(typ, caller.Address(), address, codeAndHash.code, gas, value) + } } + start := time.Now() ret, err := run(evm, contract, nil, false) @@ -500,8 +542,12 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64, } } - if evm.vmConfig.Debug && evm.depth == 0 { - evm.vmConfig.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err) + if evm.vmConfig.Debug { + if evm.depth == 0 { + evm.vmConfig.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err) + } else { + evm.vmConfig.Tracer.CaptureExit(ret, gas-contract.Gas, err) + } } return ret, address, contract.Gas, err } @@ -509,7 +555,7 @@ 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. @@ -519,7 +565,7 @@ 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 f0eac1cc34fbb..0ecf28d59a203 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/interpreter.go b/core/vm/interpreter.go index c004672cae8e0..1155037a1eb30 100644 --- a/core/vm/interpreter.go +++ b/core/vm/interpreter.go @@ -34,10 +34,10 @@ var EVMInterpreterPool = sync.Pool{ // Config are the configuration options for the Interpreter type Config struct { - Debug bool // Enables debugging - Tracer Tracer // Opcode logger - NoRecursion bool // Disables call, callcode, delegate call and create - EnablePreimageRecording bool // Enables recording of SHA3/keccak preimages + Debug bool // Enables debugging + Tracer EVMLogger // Opcode logger + NoRecursion bool // Disables call, callcode, delegate call and create + EnablePreimageRecording bool // Enables recording of SHA3/keccak preimages JumpTable [256]*operation // EVM instruction table, automatically populated if unset @@ -183,9 +183,9 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) ( pc = uint64(0) // program counter cost uint64 // copies used by tracer - pcCopy uint64 // needed for the deferred Tracer - gasCopy uint64 // for Tracer to log gas remaining before execution - logged bool // deferred Tracer should ignore already logged steps + pcCopy uint64 // needed for the deferred EVMLogger + gasCopy uint64 // for EVMLogger to log gas remaining before execution + logged bool // deferred EVMLogger should ignore already logged steps res []byte // result of the opcode execution function ) // Don't move this deferrred function, it's placed before the capturestate-deferred method, @@ -200,9 +200,9 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) ( defer func() { if err != nil { if !logged { - in.cfg.Tracer.CaptureState(in.evm, pcCopy, op, gasCopy, cost, callContext, in.returnData, in.evm.depth, err) + in.cfg.Tracer.CaptureState(pcCopy, op, gasCopy, cost, callContext, in.returnData, in.evm.depth, err) } else { - in.cfg.Tracer.CaptureFault(in.evm, pcCopy, op, gasCopy, cost, callContext, in.evm.depth, err) + in.cfg.Tracer.CaptureFault(pcCopy, op, gasCopy, cost, callContext, in.evm.depth, err) } } }() @@ -284,7 +284,7 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) ( } if in.cfg.Debug { - in.cfg.Tracer.CaptureState(in.evm, pc, op, gasCopy, cost, callContext, in.returnData, in.evm.depth, err) + in.cfg.Tracer.CaptureState(pc, op, gasCopy, cost, callContext, in.returnData, in.evm.depth, err) logged = true } diff --git a/core/vm/logger.go b/core/vm/logger.go index be24f315c2734..f8f08e7265be4 100644 --- a/core/vm/logger.go +++ b/core/vm/logger.go @@ -47,12 +47,12 @@ func (s Storage) Copy() Storage { // LogConfig are the configuration options for structured logger the EVM type LogConfig struct { - DisableMemory bool // disable memory capture - DisableStack bool // disable stack capture - DisableStorage bool // disable storage capture - DisableReturnData bool // disable return data capture - Debug bool // print output during capture end - Limit int // maximum length of output, but zero means unlimited + EnableMemory bool // enable memory capture + DisableStack bool // disable stack capture + DisableStorage bool // disable storage capture + EnableReturnData bool // enable return data capture + Debug bool // print output during capture end + Limit int // maximum length of output, but zero means unlimited // Chain overrides, can be used to execute a trace using future fork rules Overrides *params.ChainConfig `json:"overrides,omitempty"` } @@ -99,25 +99,28 @@ func (s *StructLog) ErrorString() string { return "" } -// Tracer is used to collect execution traces from an EVM transaction +// EVMLogger is used to collect execution traces from an EVM transaction // execution. CaptureState is called for each step of the VM with the // current VM state. // Note that reference types are actual VM data structures; make copies // if you need to retain them beyond the current call. -type Tracer interface { +type EVMLogger 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) - CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) + CaptureState(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(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) } -// StructLogger is an EVM state logger and implements Tracer. +// StructLogger is an EVM state logger and implements EVMLogger. // // StructLogger can capture state based on the given Log configuration and also keeps // a track record of modified storage which is used in reporting snapshots of the // contract their storage. type StructLogger struct { cfg LogConfig + env *EVM storage map[common.Address]Storage logs []StructLog @@ -144,14 +147,15 @@ func (l *StructLogger) Reset() { l.err = nil } -// CaptureStart implements the Tracer interface to initialize the tracing operation. +// CaptureStart implements the EVMLogger interface to initialize the tracing operation. func (l *StructLogger) CaptureStart(env *EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) { + l.env = env } // CaptureState logs a new structured log message and pushes it out to the environment // // CaptureState also tracks SLOAD/SSTORE ops to track storage change. -func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) { +func (l *StructLogger) CaptureState(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) { memory := scope.Memory stack := scope.Stack contract := scope.Contract @@ -161,7 +165,7 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui } // Copy a snapshot of the current memory state to a new buffer var mem []byte - if !l.cfg.DisableMemory { + if l.cfg.EnableMemory { mem = make([]byte, len(memory.Data())) copy(mem, memory.Data()) } @@ -185,7 +189,7 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui if op == SLOAD && stack.len() >= 1 { var ( address = common.Hash(stack.data[stack.len()-1].Bytes32()) - value = env.StateDB.GetState(contract.Address(), address) + value = l.env.StateDB.GetState(contract.Address(), address) ) l.storage[contract.Address()][address] = value storage = l.storage[contract.Address()].Copy() @@ -200,18 +204,18 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui } } var rdata []byte - if !l.cfg.DisableReturnData { + if l.cfg.EnableReturnData { rdata = make([]byte, len(rData)) copy(rdata, rData) } // create a new snapshot of the EVM. - log := StructLog{pc, op, gas, cost, mem, memory.Len(), stck, rdata, storage, depth, env.StateDB.GetRefund(), err} + log := StructLog{pc, op, gas, cost, mem, memory.Len(), stck, rdata, storage, depth, l.env.StateDB.GetRefund(), err} l.logs = append(l.logs, log) } -// CaptureFault implements the Tracer interface to trace an execution fault +// CaptureFault implements the EVMLogger interface to trace an execution fault // while running an opcode. -func (l *StructLogger) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) { +func (l *StructLogger) CaptureFault(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) { } // CaptureEnd is called after the call finishes to finalize the tracing. @@ -226,6 +230,11 @@ 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 } @@ -285,12 +294,13 @@ func WriteLogs(writer io.Writer, logs []*types.Log) { type mdLogger struct { out io.Writer cfg *LogConfig + env *EVM } // NewMarkdownLogger creates a logger which outputs information in a format adapted // for human readability, and is also a valid markdown table func NewMarkdownLogger(cfg *LogConfig, writer io.Writer) *mdLogger { - l := &mdLogger{writer, cfg} + l := &mdLogger{out: writer, cfg: cfg} if l.cfg == nil { l.cfg = &LogConfig{} } @@ -298,6 +308,7 @@ func NewMarkdownLogger(cfg *LogConfig, writer io.Writer) *mdLogger { } func (t *mdLogger) CaptureStart(env *EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) { + t.env = env if !create { fmt.Fprintf(t.out, "From: `%v`\nTo: `%v`\nData: `0x%x`\nGas: `%d`\nValue `%v` wei\n", from.String(), to.String(), @@ -315,7 +326,7 @@ func (t *mdLogger) CaptureStart(env *EVM, from common.Address, to common.Address } // CaptureState also tracks SLOAD/SSTORE ops to track storage change. -func (t *mdLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) { +func (t *mdLogger) CaptureState(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) { stack := scope.Stack fmt.Fprintf(t.out, "| %4d | %10v | %3d |", pc, op, cost) @@ -328,14 +339,14 @@ func (t *mdLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64 b := fmt.Sprintf("[%v]", strings.Join(a, ",")) fmt.Fprintf(t.out, "%10v |", b) } - fmt.Fprintf(t.out, "%10v |", env.StateDB.GetRefund()) + fmt.Fprintf(t.out, "%10v |", t.env.StateDB.GetRefund()) fmt.Fprintln(t.out, "") if err != nil { fmt.Fprintf(t.out, "Error: %v\n", err) } } -func (t *mdLogger) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) { +func (t *mdLogger) CaptureFault(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) { fmt.Fprintf(t.out, "\nError: at pc=%d, op=%v: %v\n", pc, op, err) } @@ -343,3 +354,8 @@ 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 0975452b601a9..c249dba7e2e3d 100644 --- a/core/vm/logger_json.go +++ b/core/vm/logger_json.go @@ -29,12 +29,13 @@ import ( type JSONLogger struct { encoder *json.Encoder cfg *LogConfig + env *EVM } // NewJSONLogger creates a new EVM tracer that prints execution steps as JSON objects // into the provided stream. func NewJSONLogger(cfg *LogConfig, writer io.Writer) *JSONLogger { - l := &JSONLogger{json.NewEncoder(writer), cfg} + l := &JSONLogger{encoder: json.NewEncoder(writer), cfg: cfg} if l.cfg == nil { l.cfg = &LogConfig{} } @@ -42,12 +43,13 @@ func NewJSONLogger(cfg *LogConfig, writer io.Writer) *JSONLogger { } func (l *JSONLogger) CaptureStart(env *EVM, from, to common.Address, create bool, input []byte, gas uint64, value *big.Int) { + l.env = env } -func (l *JSONLogger) CaptureFault(*EVM, uint64, OpCode, uint64, uint64, *ScopeContext, int, error) {} +func (l *JSONLogger) CaptureFault(uint64, OpCode, uint64, uint64, *ScopeContext, int, error) {} // CaptureState outputs state information on the logger. -func (l *JSONLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) { +func (l *JSONLogger) CaptureState(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) { memory := scope.Memory stack := scope.Stack @@ -58,16 +60,16 @@ func (l *JSONLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint GasCost: cost, MemorySize: memory.Len(), Depth: depth, - RefundCounter: env.StateDB.GetRefund(), + RefundCounter: l.env.StateDB.GetRefund(), Err: err, } - if !l.cfg.DisableMemory { + if l.cfg.EnableMemory { log.Memory = memory.Data() } if !l.cfg.DisableStack { log.Stack = stack.data } - if !l.cfg.DisableReturnData { + if l.cfg.EnableReturnData { log.ReturnData = rData } l.encoder.Encode(log) @@ -86,3 +88,8 @@ func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, } l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, ""}) } + +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/logger_test.go b/core/vm/logger_test.go index 9c936af36ab1a..5d1aa8e54d41c 100644 --- a/core/vm/logger_test.go +++ b/core/vm/logger_test.go @@ -63,7 +63,8 @@ func TestStoreCapture(t *testing.T) { scope.Stack.push(uint256.NewInt().SetUint64(1)) scope.Stack.push(uint256.NewInt()) var index common.Hash - logger.CaptureState(env, 0, SSTORE, 0, 0, scope, nil, 0, nil) + logger.CaptureStart(env, common.Address{}, contract.Address(), false, nil, 0, nil) + logger.CaptureState(0, SSTORE, 0, 0, scope, nil, 0, nil) if len(logger.storage[contract.Address()]) == 0 { t.Fatalf("expected exactly 1 changed value on address %x, got %d", contract.Address(), len(logger.storage[contract.Address()])) diff --git a/core/vm/runtime/runtime_test.go b/core/vm/runtime/runtime_test.go index dcf2d0d4478d5..fea7817ff7faf 100644 --- a/core/vm/runtime/runtime_test.go +++ b/core/vm/runtime/runtime_test.go @@ -33,7 +33,11 @@ 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" + + // force-load js tracers to trigger registration + _ "github.com/ethereum/go-ethereum/eth/tracers/js" ) func TestDefaults(t *testing.T) { @@ -329,12 +333,12 @@ type stepCounter struct { func (s *stepCounter) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) { } -func (s *stepCounter) CaptureFault(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, depth int, err error) { +func (s *stepCounter) CaptureFault(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, depth int, err error) { } func (s *stepCounter) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) {} -func (s *stepCounter) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) { +func (s *stepCounter) CaptureState(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) { s.steps++ // Enable this for more output //s.inner.CaptureState(env, pc, op, gas, cost, memory, stack, rStack, contract, depth, err) @@ -342,11 +346,21 @@ 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 +500,12 @@ 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) @@ -500,7 +514,7 @@ func BenchmarkSimpleLoop(b *testing.B) { // TestEip2929Cases contains various testcases that are used for // EIP-2929 about gas repricings func TestEip2929Cases(t *testing.T) { - + t.Skip("Test only useful for generating documentation") id := 1 prettyPrint := func(comment string, code []byte) { @@ -688,3 +702,241 @@ 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/api_backend.go b/eth/api_backend.go index 18514b7cc3bd7..daf6c19ecead7 100644 --- a/eth/api_backend.go +++ b/eth/api_backend.go @@ -338,8 +338,8 @@ func (b *EthAPIBackend) StartMining(threads int) error { return b.eth.StartMining(threads) } -func (b *EthAPIBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, error) { - return b.eth.stateAtBlock(block, reexec, base, checkLive) +func (b *EthAPIBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive, preferDisk bool) (*state.StateDB, error) { + return b.eth.stateAtBlock(block, reexec, base, checkLive, preferDisk) } func (b *EthAPIBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error) { diff --git a/eth/state_accessor.go b/eth/state_accessor.go index 461dc491fb024..6ea3161d61324 100644 --- a/eth/state_accessor.go +++ b/eth/state_accessor.go @@ -37,7 +37,17 @@ import ( // are attempted to be reexecuted to generate the desired state. The optional // base layer statedb can be passed then it's regarded as the statedb of the // parent block. -func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (statedb *state.StateDB, err error) { +// Parameters: +// - block: The block for which we want the state (== state at the stateRoot of the parent) +// - reexec: The maximum number of blocks to reprocess trying to obtain the desired state +// - base: If the caller is tracing multiple blocks, the caller can provide the parent state +// continuously from the callsite. +// - checklive: if true, then the live 'blockchain' state database is used. If the caller want to +// perform Commit or other 'save-to-disk' changes, this should be set to false to avoid +// storing trash persistently +// - preferDisk: this arg can be used by the caller to signal that even though the 'base' is provided, +// it would be preferrable to start from a fresh state, if we have it on disk. +func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64, base *state.StateDB, checkLive bool, preferDisk bool) (statedb *state.StateDB, err error) { var ( current *types.Block database state.Database @@ -52,6 +62,15 @@ func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64, base *state } } if base != nil { + if preferDisk { + // Create an ephemeral trie.Database for isolating the live one. Otherwise + // the internal junks created by tracing will be persisted into the disk. + database = state.NewDatabaseWithConfig(eth.chainDb, &trie.Config{Cache: 16}) + if statedb, err = state.New(block.Root(), database, nil); err == nil { + log.Info("Found disk backend for state trie", "root", block.Root(), "number", block.Number()) + return statedb, nil + } + } // The optional base statedb is given, mark the start point as parent block statedb, database, report = base, base.Database(), false current = eth.blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1) @@ -121,7 +140,8 @@ func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64, base *state // Finalize the state so any modifications are written to the trie root, _, err := statedb.Commit(eth.blockchain.Config().IsEIP158(current.Number())) if err != nil { - return nil, err + return nil, fmt.Errorf("stateAtBlock commit failed, number %d root %v: %w", + current.NumberU64(), current.Root().Hex(), err) } statedb, err = state.New(root, database, nil) if err != nil { @@ -153,7 +173,7 @@ func (eth *Ethereum) stateAtTransaction(block *types.Block, txIndex int, reexec } // Lookup the statedb of parent block from the live database, // otherwise regenerate it on the flight. - statedb, err := eth.stateAtBlock(parent, reexec, nil, true) + statedb, err := eth.stateAtBlock(parent, reexec, nil, true, false) if err != nil { return nil, vm.BlockContext{}, nil, err } diff --git a/eth/tracers/api.go b/eth/tracers/api.go index 5f20858b2ed9a..a44982b8646b3 100644 --- a/eth/tracers/api.go +++ b/eth/tracers/api.go @@ -55,6 +55,13 @@ const ( // and reexecute to produce missing historical state necessary to run a specific // trace. defaultTraceReexec = uint64(128) + + // defaultTracechainMemLimit is the size of the triedb, at which traceChain + // switches over and tries to use a disk-backed database instead of building + // on top of memory. + // For non-archive nodes, this limit _will_ be overblown, as disk-backed tries + // will only be found every ~15K blocks or so. + defaultTracechainMemLimit = common.StorageSize(500 * 1024 * 1024) ) // Backend interface provides the common API services (that are provided by @@ -69,7 +76,10 @@ type Backend interface { ChainConfig() *params.ChainConfig Engine() consensus.Engine ChainDb() ethdb.Database - StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, error) + // StateAtBlock returns the state corresponding to the stateroot of the block. + // N.B: For executing transactions on block N, the required stateRoot is block N-1, + // so this method should be called with the parent. + StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive, preferDisk bool) (*state.StateDB, error) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error) } @@ -180,13 +190,6 @@ type StdTraceConfig struct { TxHash common.Hash } -// txTraceContext is the contextual infos about a transaction before it gets run. -type txTraceContext struct { - index int // Index of the transaction within the block - hash common.Hash // Hash of the transaction - block common.Hash // Hash of the block containing the transaction -} - // txTraceResult is the result of a single transaction trace. type txTraceResult struct { Result interface{} `json:"result,omitempty"` // Trace results produced by the tracer @@ -274,10 +277,10 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config // Trace all the transactions contained within for i, tx := range task.block.Transactions() { msg, _ := tx.AsMessage(signer) - txctx := &txTraceContext{ - index: i, - hash: tx.Hash(), - block: task.block.Hash(), + txctx := &Context{ + BlockHash: task.block.Hash(), + TxIndex: i, + TxHash: tx.Hash(), } res, err := api.traceTx(localctx, msg, txctx, blockCtx, task.statedb, config) if err != nil { @@ -299,7 +302,11 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config }) } // Start a goroutine to feed all the blocks into the tracers - begin := time.Now() + var ( + begin = time.Now() + derefTodo []common.Hash // list of hashes to dereference from the db + derefsMu sync.Mutex // mutex for the derefs + ) gopool.Submit(func() { var ( @@ -325,6 +332,7 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config } close(results) }() + var preferDisk bool // Feed all the blocks both into the tracer, as well as fast process concurrently for number = start.NumberU64(); number < end.NumberU64(); number++ { // Stop tracing if interruption was requested @@ -333,6 +341,14 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config return default: } + // clean out any derefs + derefsMu.Lock() + for _, h := range derefTodo { + statedb.Database().TrieDB().Dereference(h) + } + derefTodo = derefTodo[:0] + derefsMu.Unlock() + // Print progress logs if long enough time elapsed if time.Since(logged) > 8*time.Second { logged = time.Now() @@ -346,18 +362,24 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config } // Prepare the statedb for tracing. Don't use the live database for // tracing to avoid persisting state junks into the database. - statedb, err = api.backend.StateAtBlock(localctx, block, reexec, statedb, false) + statedb, err = api.backend.StateAtBlock(localctx, block, reexec, statedb, false, preferDisk) if err != nil { failed = err break } - if statedb.Database().TrieDB() != nil { + if trieDb := statedb.Database().TrieDB(); trieDb != nil { // Hold the reference for tracer, will be released at the final stage - statedb.Database().TrieDB().Reference(block.Root(), common.Hash{}) + trieDb.Reference(block.Root(), common.Hash{}) // Release the parent state because it's already held by the tracer if parent != (common.Hash{}) { - statedb.Database().TrieDB().Dereference(parent) + trieDb.Dereference(parent) + } + // Prefer disk if the trie db memory grows too much + s1, s2 := trieDb.Size() + if !preferDisk && (s1+s2) > defaultTracechainMemLimit { + log.Info("Switching to prefer-disk mode for tracing", "size", s1+s2) + preferDisk = true } } parent = block.Root() @@ -391,12 +413,11 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config Hash: res.block.Hash(), Traces: res.results, } + // Schedule any parent tries held in memory by this task for dereferencing done[uint64(result.Block)] = result - - // Dereference any parent tries held in memory by this task - if res.statedb.Database().TrieDB() != nil { - res.statedb.Database().TrieDB().Dereference(res.rootref) - } + derefsMu.Lock() + derefTodo = append(derefTodo, res.rootref) + derefsMu.Unlock() // Stream completed traces to the user, aborting on the first error for result, ok := done[next]; ok; result, ok = done[next] { if len(result.Traces) > 0 || next == end.NumberU64() { @@ -454,12 +475,11 @@ func (api *API) TraceBlockFromFile(ctx context.Context, file string, config *Tra // EVM against a block pulled from the pool of bad ones and returns them as a JSON // object. func (api *API) TraceBadBlock(ctx context.Context, hash common.Hash, config *TraceConfig) ([]*txTraceResult, error) { - for _, block := range rawdb.ReadAllBadBlocks(api.backend.ChainDb()) { - if block.Hash() == hash { - return api.traceBlock(ctx, block, config) - } + block := rawdb.ReadBadBlock(api.backend.ChainDb(), hash) + if block == nil { + return nil, fmt.Errorf("bad block %#x not found", hash) } - return nil, fmt.Errorf("bad block %#x not found", hash) + return api.traceBlock(ctx, block, config) } // StandardTraceBlockToFile dumps the structured logs created during the @@ -473,16 +493,83 @@ func (api *API) StandardTraceBlockToFile(ctx context.Context, hash common.Hash, return api.standardTraceBlockToFile(ctx, block, config) } +// IntermediateRoots executes a block (bad- or canon- or side-), and returns a list +// of intermediate roots: the stateroot after each transaction. +func (api *API) IntermediateRoots(ctx context.Context, hash common.Hash, config *TraceConfig) ([]common.Hash, error) { + block, _ := api.blockByHash(ctx, hash) + if block == nil { + // Check in the bad blocks + block = rawdb.ReadBadBlock(api.backend.ChainDb(), hash) + } + if block == nil { + return nil, fmt.Errorf("block %#x not found", hash) + } + if block.NumberU64() == 0 { + return nil, errors.New("genesis is not traceable") + } + parent, err := api.blockByNumberAndHash(ctx, rpc.BlockNumber(block.NumberU64()-1), block.ParentHash()) + if err != nil { + return nil, err + } + reexec := defaultTraceReexec + if config != nil && config.Reexec != nil { + reexec = *config.Reexec + } + statedb, err := api.backend.StateAtBlock(ctx, parent, reexec, nil, true, false) + if err != nil { + return nil, err + } + var ( + roots []common.Hash + signer = types.MakeSigner(api.backend.ChainConfig(), block.Number()) + chainConfig = api.backend.ChainConfig() + vmctx = core.NewEVMBlockContext(block.Header(), api.chainContext(ctx), nil) + deleteEmptyObjects = chainConfig.IsEIP158(block.Number()) + ) + for i, tx := range block.Transactions() { + var ( + msg, _ = tx.AsMessage(signer) + txContext = core.NewEVMTxContext(msg) + vmenv = vm.NewEVM(vmctx, txContext, statedb, chainConfig, vm.Config{}) + ) + + if posa, ok := api.backend.Engine().(consensus.PoSA); ok { + if isSystem, _ := posa.IsSystemTransaction(tx, block.Header()); isSystem { + balance := statedb.GetBalance(consensus.SystemAddress) + if balance.Cmp(common.Big0) > 0 { + statedb.SetBalance(consensus.SystemAddress, big.NewInt(0)) + statedb.AddBalance(vmctx.Coinbase, balance) + } + } + } + + statedb.Prepare(tx.Hash(), block.Hash(), i) + if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.Gas())); err != nil { + log.Warn("Tracing intermediate roots did not complete", "txindex", i, "txhash", tx.Hash(), "err", err) + // We intentionally don't return the error here: if we do, then the RPC server will not + // return the roots. Most likely, the caller already knows that a certain transaction fails to + // be included, but still want the intermediate roots that led to that point. + // It may happen the tx_N causes an erroneous state, which in turn causes tx_N+M to not be + // executable. + // N.B: This should never happen while tracing canon blocks, only when tracing bad blocks. + return roots, nil + } + // calling IntermediateRoot will internally call Finalize on the state + // so any modifications are written to the trie + roots = append(roots, statedb.IntermediateRoot(deleteEmptyObjects)) + } + return roots, nil +} + // StandardTraceBadBlockToFile dumps the structured logs created during the // execution of EVM against a block pulled from the pool of bad ones to the // local file system and returns a list of files to the caller. func (api *API) StandardTraceBadBlockToFile(ctx context.Context, hash common.Hash, config *StdTraceConfig) ([]string, error) { - for _, block := range rawdb.ReadAllBadBlocks(api.backend.ChainDb()) { - if block.Hash() == hash { - return api.standardTraceBlockToFile(ctx, block, config) - } + block := rawdb.ReadBadBlock(api.backend.ChainDb(), hash) + if block == nil { + return nil, fmt.Errorf("bad block %#x not found", hash) } - return nil, fmt.Errorf("bad block %#x not found", hash) + return api.standardTraceBlockToFile(ctx, block, config) } // traceBlock configures a new tracer according to the provided configuration, and @@ -500,7 +587,7 @@ func (api *API) traceBlock(ctx context.Context, block *types.Block, config *Trac if config != nil && config.Reexec != nil { reexec = *config.Reexec } - statedb, err := api.backend.StateAtBlock(ctx, parent, reexec, nil, true) + statedb, err := api.backend.StateAtBlock(ctx, parent, reexec, nil, true, false) if err != nil { return nil, err } @@ -520,16 +607,18 @@ func (api *API) traceBlock(ctx context.Context, block *types.Block, config *Trac blockCtx := core.NewEVMBlockContext(block.Header(), api.chainContext(ctx), nil) blockHash := block.Hash() for th := 0; th < threads; th++ { + blockCtx := blockCtx + pend.Add(1) gopool.Submit(func() { defer pend.Done() // Fetch and execute the next transaction trace tasks for task := range jobs { msg, _ := txs[task.index].AsMessage(signer) - txctx := &txTraceContext{ - index: task.index, - hash: txs[task.index].Hash(), - block: blockHash, + txctx := &Context{ + BlockHash: blockHash, + TxIndex: task.index, + TxHash: txs[task.index].Hash(), } res, err := api.traceTx(ctx, msg, txctx, blockCtx, task.statedb, config) if err != nil { @@ -542,6 +631,7 @@ func (api *API) traceBlock(ctx context.Context, block *types.Block, config *Trac } // Feed the transactions into the tracers and return var failed error + blockCtx = core.NewEVMBlockContext(block.Header(), api.chainContext(ctx), nil) for i, tx := range txs { // Send the trace task over for execution jobs <- &txTraceTask{statedb: statedb.Copy(), index: i} @@ -600,7 +690,7 @@ func (api *API) standardTraceBlockToFile(ctx context.Context, block *types.Block if config != nil && config.Reexec != nil { reexec = *config.Reexec } - statedb, err := api.backend.StateAtBlock(ctx, parent, reexec, nil, true) + statedb, err := api.backend.StateAtBlock(ctx, parent, reexec, nil, true, false) if err != nil { return nil, err } @@ -740,10 +830,10 @@ func (api *API) TraceTransaction(ctx context.Context, hash common.Hash, config * if err != nil { return nil, err } - txctx := &txTraceContext{ - index: int(index), - hash: hash, - block: blockHash, + txctx := &Context{ + BlockHash: blockHash, + TxIndex: int(index), + TxHash: hash, } return api.traceTx(ctx, msg, txctx, vmctx, statedb, config) } @@ -773,7 +863,7 @@ func (api *API) TraceCall(ctx context.Context, args ethapi.CallArgs, blockNrOrHa if config != nil && config.Reexec != nil { reexec = *config.Reexec } - statedb, err := api.backend.StateAtBlock(ctx, block, reexec, nil, true) + statedb, err := api.backend.StateAtBlock(ctx, block, reexec, nil, true, false) if err != nil { return nil, err } @@ -796,21 +886,23 @@ func (api *API) TraceCall(ctx context.Context, args ethapi.CallArgs, blockNrOrHa Reexec: config.Reexec, } } - return api.traceTx(ctx, msg, new(txTraceContext), vmctx, statedb, traceConfig) + return api.traceTx(ctx, msg, new(Context), vmctx, statedb, traceConfig) } // traceTx configures a new tracer according to the provided configuration, and // executes the given message in the provided environment. The return value will // be tracer dependent. -func (api *API) traceTx(ctx context.Context, message core.Message, txctx *txTraceContext, vmctx vm.BlockContext, statedb *state.StateDB, config *TraceConfig) (interface{}, error) { +func (api *API) traceTx(ctx context.Context, message core.Message, txctx *Context, vmctx vm.BlockContext, statedb *state.StateDB, config *TraceConfig) (interface{}, error) { // Assemble the structured logger or the JavaScript tracer var ( - tracer vm.Tracer + tracer vm.EVMLogger err error txContext = core.NewEVMTxContext(message) ) switch { - case config != nil && config.Tracer != nil: + case config == nil: + tracer = vm.NewStructLogger(nil) + case config.Tracer != nil: // Define a meaningful timeout of a single transaction trace timeout := defaultTraceTimeout if config.Timeout != nil { @@ -818,23 +910,19 @@ func (api *API) traceTx(ctx context.Context, message core.Message, txctx *txTrac return nil, err } } - // Constuct the JavaScript tracer to execute with - if tracer, err = New(*config.Tracer, txContext); err != nil { + if t, err := New(*config.Tracer, txctx); err != nil { return nil, err + } else { + deadlineCtx, cancel := context.WithTimeout(ctx, timeout) + go func() { + <-deadlineCtx.Done() + if errors.Is(deadlineCtx.Err(), context.DeadlineExceeded) { + t.Stop(errors.New("execution timeout")) + } + }() + defer cancel() + tracer = t } - // Handle timeouts and RPC cancellations - deadlineCtx, cancel := context.WithTimeout(ctx, timeout) - gopool.Submit(func() { - <-deadlineCtx.Done() - if deadlineCtx.Err() == context.DeadlineExceeded { - tracer.(*Tracer).Stop(errors.New("execution timeout")) - } - }) - defer cancel() - - case config == nil: - tracer = vm.NewStructLogger(nil) - default: tracer = vm.NewStructLogger(config.LogConfig) } @@ -851,7 +939,7 @@ func (api *API) traceTx(ctx context.Context, message core.Message, txctx *txTrac } // Call Prepare to clear out the statedb access list - statedb.Prepare(txctx.hash, txctx.block, txctx.index) + statedb.Prepare(txctx.TxHash, txctx.BlockHash, txctx.TxIndex) result, err := core.ApplyMessage(vmenv, message, new(core.GasPool).AddGas(message.Gas())) if err != nil { @@ -873,7 +961,7 @@ func (api *API) traceTx(ctx context.Context, message core.Message, txctx *txTrac StructLogs: ethapi.FormatLogs(tracer.StructLogs()), }, nil - case *Tracer: + case Tracer: return tracer.GetResult() default: diff --git a/eth/tracers/api_test.go b/eth/tracers/api_test.go index 598c84c3b1c52..6a64de0e3a4f7 100644 --- a/eth/tracers/api_test.go +++ b/eth/tracers/api_test.go @@ -139,7 +139,7 @@ func (b *testBackend) ChainDb() ethdb.Database { return b.chaindb } -func (b *testBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, error) { +func (b *testBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool, preferDisk bool) (*state.StateDB, error) { statedb, err := b.chain.StateAt(block.Root()) if err != nil { return nil, errStateNotFound @@ -307,147 +307,6 @@ func TestTraceCall(t *testing.T) { } } -func TestOverridenTraceCall(t *testing.T) { - t.Parallel() - - // Initialize test accounts - accounts := newAccounts(3) - genesis := &core.Genesis{Alloc: core.GenesisAlloc{ - accounts[0].addr: {Balance: big.NewInt(params.Ether)}, - accounts[1].addr: {Balance: big.NewInt(params.Ether)}, - accounts[2].addr: {Balance: big.NewInt(params.Ether)}, - }} - genBlocks := 10 - signer := types.HomesteadSigner{} - api := NewAPI(newTestBackend(t, genBlocks, genesis, func(i int, b *core.BlockGen) { - // Transfer from account[0] to account[1] - // value: 1000 wei - // fee: 0 wei - tx, _ := types.SignTx(types.NewTransaction(uint64(i), accounts[1].addr, big.NewInt(1000), params.TxGas, big.NewInt(0), nil), signer, accounts[0].key) - b.AddTx(tx) - })) - randomAccounts, tracer := newAccounts(3), "callTracer" - - var testSuite = []struct { - blockNumber rpc.BlockNumber - call ethapi.CallArgs - config *TraceCallConfig - expectErr error - expect *callTrace - }{ - // Succcessful call with state overriding - { - blockNumber: rpc.PendingBlockNumber, - call: ethapi.CallArgs{ - From: &randomAccounts[0].addr, - To: &randomAccounts[1].addr, - Value: (*hexutil.Big)(big.NewInt(1000)), - }, - config: &TraceCallConfig{ - Tracer: &tracer, - StateOverrides: ðapi.StateOverride{ - randomAccounts[0].addr: ethapi.OverrideAccount{Balance: newRPCBalance(new(big.Int).Mul(big.NewInt(1), big.NewInt(params.Ether)))}, - }, - }, - expectErr: nil, - expect: &callTrace{ - Type: "CALL", - From: randomAccounts[0].addr, - To: randomAccounts[1].addr, - Gas: newRPCUint64(24979000), - GasUsed: newRPCUint64(0), - Value: (*hexutil.Big)(big.NewInt(1000)), - }, - }, - // Invalid call without state overriding - { - blockNumber: rpc.PendingBlockNumber, - call: ethapi.CallArgs{ - From: &randomAccounts[0].addr, - To: &randomAccounts[1].addr, - Value: (*hexutil.Big)(big.NewInt(1000)), - }, - config: &TraceCallConfig{ - Tracer: &tracer, - }, - expectErr: core.ErrInsufficientFundsForTransfer, - expect: nil, - }, - // Successful simple contract call - // - // // SPDX-License-Identifier: GPL-3.0 - // - // pragma solidity >=0.7.0 <0.8.0; - // - // /** - // * @title Storage - // * @dev Store & retrieve value in a variable - // */ - // contract Storage { - // uint256 public number; - // constructor() { - // number = block.number; - // } - // } - { - blockNumber: rpc.PendingBlockNumber, - call: ethapi.CallArgs{ - From: &randomAccounts[0].addr, - To: &randomAccounts[2].addr, - Data: newRPCBytes(common.Hex2Bytes("8381f58a")), // call number() - }, - config: &TraceCallConfig{ - Tracer: &tracer, - StateOverrides: ðapi.StateOverride{ - randomAccounts[2].addr: ethapi.OverrideAccount{ - Code: newRPCBytes(common.Hex2Bytes("6080604052348015600f57600080fd5b506004361060285760003560e01c80638381f58a14602d575b600080fd5b60336049565b6040518082815260200191505060405180910390f35b6000548156fea2646970667358221220eab35ffa6ab2adfe380772a48b8ba78e82a1b820a18fcb6f59aa4efb20a5f60064736f6c63430007040033")), - StateDiff: newStates([]common.Hash{{}}, []common.Hash{common.BigToHash(big.NewInt(123))}), - }, - }, - }, - expectErr: nil, - expect: &callTrace{ - Type: "CALL", - From: randomAccounts[0].addr, - To: randomAccounts[2].addr, - Input: hexutil.Bytes(common.Hex2Bytes("8381f58a")), - Output: hexutil.Bytes(common.BigToHash(big.NewInt(123)).Bytes()), - Gas: newRPCUint64(24978936), - GasUsed: newRPCUint64(2283), - Value: (*hexutil.Big)(big.NewInt(0)), - }, - }, - } - for _, testspec := range testSuite { - result, err := api.TraceCall(context.Background(), testspec.call, rpc.BlockNumberOrHash{BlockNumber: &testspec.blockNumber}, testspec.config) - if testspec.expectErr != nil { - if err == nil { - t.Errorf("Expect error %v, get nothing", testspec.expectErr) - continue - } - if !errors.Is(err, testspec.expectErr) { - t.Errorf("Error mismatch, want %v, get %v", testspec.expectErr, err) - } - } else { - if err != nil { - t.Errorf("Expect no error, get %v", err) - continue - } - ret := new(callTrace) - if err := json.Unmarshal(result.(json.RawMessage), ret); err != nil { - t.Fatalf("failed to unmarshal trace result: %v", err) - } - if !jsonEqual(ret, testspec.expect) { - // uncomment this for easier debugging - //have, _ := json.MarshalIndent(ret, "", " ") - //want, _ := json.MarshalIndent(testspec.expect, "", " ") - //t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", string(have), string(want)) - t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", ret, testspec.expect) - } - } - } -} - func TestTraceTransaction(t *testing.T) { t.Parallel() @@ -504,90 +363,177 @@ func TestTraceBlock(t *testing.T) { var testSuite = []struct { blockNumber rpc.BlockNumber config *TraceConfig - expect interface{} + want string expectErr error }{ // Trace genesis block, expect error { blockNumber: rpc.BlockNumber(0), - config: nil, - expect: nil, expectErr: errors.New("genesis is not traceable"), }, // Trace head block { blockNumber: rpc.BlockNumber(genBlocks), - config: nil, - expectErr: nil, - expect: []*txTraceResult{ - { - Result: ðapi.ExecutionResult{ - Gas: params.TxGas, - Failed: false, - ReturnValue: "", - StructLogs: []ethapi.StructLogRes{}, - }, - }, - }, + want: `[{"result":{"gas":21000,"failed":false,"returnValue":"","structLogs":[]}}]`, }, // Trace non-existent block { blockNumber: rpc.BlockNumber(genBlocks + 1), - config: nil, expectErr: fmt.Errorf("block #%d not found", genBlocks+1), - expect: nil, }, // Trace latest block { blockNumber: rpc.LatestBlockNumber, - config: nil, - expectErr: nil, - expect: []*txTraceResult{ - { - Result: ðapi.ExecutionResult{ - Gas: params.TxGas, - Failed: false, - ReturnValue: "", - StructLogs: []ethapi.StructLogRes{}, - }, + want: `[{"result":{"gas":21000,"failed":false,"returnValue":"","structLogs":[]}}]`, + }, + // Trace pending block + { + blockNumber: rpc.PendingBlockNumber, + want: `[{"result":{"gas":21000,"failed":false,"returnValue":"","structLogs":[]}}]`, + }, + } + for i, tc := range testSuite { + result, err := api.TraceBlockByNumber(context.Background(), tc.blockNumber, tc.config) + if tc.expectErr != nil { + if err == nil { + t.Errorf("test %d, want error %v", i, tc.expectErr) + continue + } + if !reflect.DeepEqual(err, tc.expectErr) { + t.Errorf("test %d: error mismatch, want %v, get %v", i, tc.expectErr, err) + } + continue + } + if err != nil { + t.Errorf("test %d, want no error, have %v", i, err) + continue + } + have, _ := json.Marshal(result) + want := tc.want + if string(have) != want { + t.Errorf("test %d, result mismatch, have\n%v\n, want\n%v\n", i, string(have), want) + } + } +} + +func TestTracingWithOverrides(t *testing.T) { + t.Parallel() + // Initialize test accounts + accounts := newAccounts(3) + genesis := &core.Genesis{Alloc: core.GenesisAlloc{ + accounts[0].addr: {Balance: big.NewInt(params.Ether)}, + accounts[1].addr: {Balance: big.NewInt(params.Ether)}, + accounts[2].addr: {Balance: big.NewInt(params.Ether)}, + }} + genBlocks := 10 + signer := types.HomesteadSigner{} + api := NewAPI(newTestBackend(t, genBlocks, genesis, func(i int, b *core.BlockGen) { + // Transfer from account[0] to account[1] + // value: 1000 wei + // fee: 0 wei + tx, _ := types.SignTx(types.NewTransaction(uint64(i), accounts[1].addr, big.NewInt(1000), params.TxGas, big.NewInt(0), nil), signer, accounts[0].key) + b.AddTx(tx) + })) + randomAccounts := newAccounts(3) + type res struct { + Gas int + Failed bool + returnValue string + } + var testSuite = []struct { + blockNumber rpc.BlockNumber + call ethapi.CallArgs + config *TraceCallConfig + expectErr error + want string + }{ + // Call which can only succeed if state is state overridden + { + blockNumber: rpc.PendingBlockNumber, + call: ethapi.CallArgs{ + From: &randomAccounts[0].addr, + To: &randomAccounts[1].addr, + Value: (*hexutil.Big)(big.NewInt(1000)), + }, + config: &TraceCallConfig{ + StateOverrides: ðapi.StateOverride{ + randomAccounts[0].addr: ethapi.OverrideAccount{Balance: newRPCBalance(new(big.Int).Mul(big.NewInt(1), big.NewInt(params.Ether)))}, }, }, + want: `{"gas":21000,"failed":false,"returnValue":""}`, }, - // Trace pending block + // Invalid call without state overriding + { + blockNumber: rpc.PendingBlockNumber, + call: ethapi.CallArgs{ + From: &randomAccounts[0].addr, + To: &randomAccounts[1].addr, + Value: (*hexutil.Big)(big.NewInt(1000)), + }, + config: &TraceCallConfig{}, + expectErr: core.ErrInsufficientFundsForTransfer, + }, + // Successful simple contract call + // + // // SPDX-License-Identifier: GPL-3.0 + // + // pragma solidity >=0.7.0 <0.8.0; + // + // /** + // * @title Storage + // * @dev Store & retrieve value in a variable + // */ + // contract Storage { + // uint256 public number; + // constructor() { + // number = block.number; + // } + // } { blockNumber: rpc.PendingBlockNumber, - config: nil, - expectErr: nil, - expect: []*txTraceResult{ - { - Result: ðapi.ExecutionResult{ - Gas: params.TxGas, - Failed: false, - ReturnValue: "", - StructLogs: []ethapi.StructLogRes{}, + call: ethapi.CallArgs{ + From: &randomAccounts[0].addr, + To: &randomAccounts[2].addr, + Data: newRPCBytes(common.Hex2Bytes("8381f58a")), // call number() + }, + config: &TraceCallConfig{ + //Tracer: &tracer, + StateOverrides: ðapi.StateOverride{ + randomAccounts[2].addr: ethapi.OverrideAccount{ + Code: newRPCBytes(common.Hex2Bytes("6080604052348015600f57600080fd5b506004361060285760003560e01c80638381f58a14602d575b600080fd5b60336049565b6040518082815260200191505060405180910390f35b6000548156fea2646970667358221220eab35ffa6ab2adfe380772a48b8ba78e82a1b820a18fcb6f59aa4efb20a5f60064736f6c63430007040033")), + StateDiff: newStates([]common.Hash{{}}, []common.Hash{common.BigToHash(big.NewInt(123))}), }, }, }, + want: `{"gas":23347,"failed":false,"returnValue":"000000000000000000000000000000000000000000000000000000000000007b"}`, }, } - for _, testspec := range testSuite { - result, err := api.TraceBlockByNumber(context.Background(), testspec.blockNumber, testspec.config) - if testspec.expectErr != nil { + for i, tc := range testSuite { + result, err := api.TraceCall(context.Background(), tc.call, rpc.BlockNumberOrHash{BlockNumber: &tc.blockNumber}, tc.config) + if tc.expectErr != nil { if err == nil { - t.Errorf("Expect error %v, get nothing", testspec.expectErr) + t.Errorf("test %d: want error %v, have nothing", i, tc.expectErr) continue } - if !reflect.DeepEqual(err, testspec.expectErr) { - t.Errorf("Error mismatch, want %v, get %v", testspec.expectErr, err) - } - } else { - if err != nil { - t.Errorf("Expect no error, get %v", err) - continue - } - if !reflect.DeepEqual(result, testspec.expect) { - t.Errorf("Result mismatch, want %v, get %v", testspec.expect, result) + if !errors.Is(err, tc.expectErr) { + t.Errorf("test %d: error mismatch, want %v, have %v", i, tc.expectErr, err) } + continue + } + if err != nil { + t.Errorf("test %d: want no error, have %v", i, err) + continue + } + // Turn result into res-struct + var ( + have res + want res + ) + resBytes, _ := json.Marshal(result) + json.Unmarshal(resBytes, &have) + json.Unmarshal([]byte(tc.want), &want) + if !reflect.DeepEqual(have, want) { + t.Errorf("test %d, result mismatch, have\n%v\n, want\n%v\n", i, string(resBytes), want) } } } @@ -618,11 +564,6 @@ func newRPCBalance(balance *big.Int) **hexutil.Big { return &rpcBalance } -func newRPCUint64(number uint64) *hexutil.Uint64 { - rpcUint64 := hexutil.Uint64(number) - return &rpcUint64 -} - func newRPCBytes(bytes []byte) *hexutil.Bytes { rpcBytes := hexutil.Bytes(bytes) return &rpcBytes diff --git a/eth/tracers/internal/tracers/call_tracer_js.js b/eth/tracers/internal/tracers/call_tracer_js.js new file mode 100644 index 0000000000000..7da7bf216a258 --- /dev/null +++ b/eth/tracers/internal/tracers/call_tracer_js.js @@ -0,0 +1,112 @@ +// 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 . + + +// callFrameTracer uses the new call frame tracing methods to report useful information +// about internal messages of a transaction. +{ + callstack: [{}], + fault: function(log, db) {}, + 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. + 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. + +package tracetest + +import ( + "encoding/json" + "io/ioutil" + "math/big" + "path/filepath" + "reflect" + "strings" + "testing" + "unicode" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/common/hexutil" + "github.com/ethereum/go-ethereum/common/math" + "github.com/ethereum/go-ethereum/core" + "github.com/ethereum/go-ethereum/core/rawdb" + "github.com/ethereum/go-ethereum/core/types" + "github.com/ethereum/go-ethereum/core/vm" + "github.com/ethereum/go-ethereum/crypto" + "github.com/ethereum/go-ethereum/eth/tracers" + "github.com/ethereum/go-ethereum/params" + "github.com/ethereum/go-ethereum/rlp" + "github.com/ethereum/go-ethereum/tests" + + // Force-load native and js pacakges, to trigger registration + _ "github.com/ethereum/go-ethereum/eth/tracers/js" + _ "github.com/ethereum/go-ethereum/eth/tracers/native" +) + +// To generate a new callTracer test, copy paste the makeTest method below into +// a Geth console and call it with a transaction hash you which to export. + +/* +// makeTest generates a callTracer test by running a prestate reassembled and a +// call trace run, assembling all the gathered information into a test case. +var makeTest = function(tx, rewind) { + // Generate the genesis block from the block, transaction and prestate data + var block = eth.getBlock(eth.getTransaction(tx).blockHash); + var genesis = eth.getBlock(block.parentHash); + + delete genesis.gasUsed; + delete genesis.logsBloom; + delete genesis.parentHash; + delete genesis.receiptsRoot; + delete genesis.sha3Uncles; + delete genesis.size; + delete genesis.transactions; + delete genesis.transactionsRoot; + delete genesis.uncles; + + genesis.gasLimit = genesis.gasLimit.toString(); + genesis.number = genesis.number.toString(); + genesis.timestamp = genesis.timestamp.toString(); + + genesis.alloc = debug.traceTransaction(tx, {tracer: "prestateTracer", rewind: rewind}); + for (var key in genesis.alloc) { + genesis.alloc[key].nonce = genesis.alloc[key].nonce.toString(); + } + genesis.config = admin.nodeInfo.protocols.eth.config; + + // Generate the call trace and produce the test input + var result = debug.traceTransaction(tx, {tracer: "callTracer", rewind: rewind}); + delete result.time; + + console.log(JSON.stringify({ + genesis: genesis, + context: { + number: block.number.toString(), + difficulty: block.difficulty, + timestamp: block.timestamp.toString(), + gasLimit: block.gasLimit.toString(), + miner: block.miner, + }, + input: eth.getRawTransaction(tx), + result: result, + }, null, 2)); +} +*/ + +type callContext struct { + Number math.HexOrDecimal64 `json:"number"` + Difficulty *math.HexOrDecimal256 `json:"difficulty"` + Time math.HexOrDecimal64 `json:"timestamp"` + GasLimit math.HexOrDecimal64 `json:"gasLimit"` + Miner common.Address `json:"miner"` +} + +// callTrace is the result of a callTracer run. +type callTrace struct { + Type string `json:"type"` + From common.Address `json:"from"` + To common.Address `json:"to"` + Input hexutil.Bytes `json:"input"` + Output hexutil.Bytes `json:"output"` + Gas *hexutil.Uint64 `json:"gas,omitempty"` + GasUsed *hexutil.Uint64 `json:"gasUsed,omitempty"` + Value *hexutil.Big `json:"value,omitempty"` + Error string `json:"error,omitempty"` + Calls []callTrace `json:"calls,omitempty"` +} + +// callTracerTest defines a single test to check the call tracer against. +type callTracerTest struct { + Genesis *core.Genesis `json:"genesis"` + Context *callContext `json:"context"` + Input string `json:"input"` + Result *callTrace `json:"result"` +} + +// Iterates over all the input-output datasets in the tracer test harness and +// runs the JavaScript tracers against them. +func TestCallTracerLegacy(t *testing.T) { + testCallTracer("callTracerLegacy", "call_tracer_legacy", t) +} + +func TestCallTracerJs(t *testing.T) { + testCallTracer("callTracerJs", "call_tracer", t) +} + +func TestCallTracerNative(t *testing.T) { + testCallTracer("callTracer", "call_tracer", t) +} + +func testCallTracer(tracerName 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.HasSuffix(file.Name(), ".json") { + continue + } + file := file // capture range variable + t.Run(camel(strings.TrimSuffix(file.Name(), ".json")), func(t *testing.T) { + t.Parallel() + + var ( + test = new(callTracerTest) + tx = new(types.Transaction) + ) + // Call tracer test found, read if from disk + if blob, err := ioutil.ReadFile(filepath.Join("testdata", dirPath, file.Name())); err != nil { + t.Fatalf("failed to read testcase: %v", err) + } else if err := json.Unmarshal(blob, test); err != nil { + t.Fatalf("failed to parse testcase: %v", err) + } + if err := rlp.DecodeBytes(common.FromHex(test.Input), tx); err != nil { + t.Fatalf("failed to parse testcase input: %v", err) + } + // Configure a blockchain with the given prestate + var ( + signer = types.MakeSigner(test.Genesis.Config, new(big.Int).SetUint64(uint64(test.Context.Number))) + 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) + ) + tracer, err := tracers.New(tracerName, new(tracers.Context)) + if err != nil { + t.Fatalf("failed to create call tracer: %v", err) + } + evm := vm.NewEVM(context, txContext, statedb, test.Genesis.Config, vm.Config{Debug: true, Tracer: tracer}) + msg, err := tx.AsMessage(signer) + if err != nil { + t.Fatalf("failed to prepare transaction for tracing: %v", err) + } + st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas())) + if _, err = st.TransitionDb(); err != nil { + t.Fatalf("failed to execute transaction: %v", err) + } + // Retrieve the trace result and compare against the etalon + res, err := tracer.GetResult() + if err != nil { + t.Fatalf("failed to retrieve trace result: %v", err) + } + ret := new(callTrace) + if err := json.Unmarshal(res, ret); err != nil { + t.Fatalf("failed to unmarshal trace result: %v", err) + } + + if !jsonEqual(ret, test.Result) { + // uncomment this for easier debugging + //have, _ := json.MarshalIndent(ret, "", " ") + //want, _ := json.MarshalIndent(test.Result, "", " ") + //t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", string(have), string(want)) + t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", ret, test.Result) + } + }) + } +} + +// jsonEqual is similar to reflect.DeepEqual, but does a 'bounce' via json prior to +// comparison +func jsonEqual(x, y interface{}) bool { + xTrace := new(callTrace) + yTrace := new(callTrace) + if xj, err := json.Marshal(x); err == nil { + json.Unmarshal(xj, xTrace) + } else { + return false + } + if yj, err := json.Marshal(y); err == nil { + json.Unmarshal(yj, yTrace) + } else { + return false + } + return reflect.DeepEqual(xTrace, yTrace) +} + +// camel converts a snake cased input string into a camel cased output. +func camel(str string) string { + pieces := strings.Split(str, "_") + for i := 1; i < len(pieces); i++ { + pieces[i] = string(unicode.ToUpper(rune(pieces[i][0]))) + pieces[i][1:] + } + return strings.Join(pieces, "") +} +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("callTracerNative", 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) + 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) + + b.ReportAllocs() + b.ResetTimer() + for i := 0; i < b.N; i++ { + tracer, err := tracers.New(tracerName, new(tracers.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}) + 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) + } + if _, err = tracer.GetResult(); err != nil { + b.Fatal(err) + } + statedb.RevertToSnapshot(snap) + } +} + +// TestZeroValueToNotExitCall tests the calltracer(s) on the following: +// Tx to A, A calls B with zero value. B does not already exist. +// Expected: that enter/exit is invoked and the inner call is shown in the result +func TestZeroValueToNotExitCall(t *testing.T) { + var to = common.HexToAddress("0x00000000000000000000000000000000deadbeef") + privkey, err := crypto.HexToECDSA("0000000000000000deadbeef00000000000000000000000000000000deadbeef") + if err != nil { + t.Fatalf("err %v", err) + } + signer := types.NewEIP155Signer(big.NewInt(1)) + tx, err := types.SignNewTx(privkey, signer, &types.LegacyTx{ + GasPrice: big.NewInt(0), + Gas: 50000, + To: &to, + }) + if err != nil { + t.Fatalf("err %v", err) + } + origin, _ := signer.Sender(tx) + txContext := vm.TxContext{ + Origin: origin, + GasPrice: big.NewInt(1), + } + context := vm.BlockContext{ + CanTransfer: core.CanTransfer, + Transfer: core.Transfer, + Coinbase: common.Address{}, + BlockNumber: new(big.Int).SetUint64(8000000), + Time: new(big.Int).SetUint64(5), + Difficulty: big.NewInt(0x30000), + GasLimit: uint64(6000000), + } + var code = []byte{ + byte(vm.PUSH1), 0x0, byte(vm.DUP1), byte(vm.DUP1), byte(vm.DUP1), // in and outs zero + byte(vm.DUP1), byte(vm.PUSH1), 0xff, byte(vm.GAS), // value=0,address=0xff, gas=GAS + byte(vm.CALL), + } + var alloc = core.GenesisAlloc{ + to: core.GenesisAccount{ + Nonce: 1, + Code: code, + }, + origin: core.GenesisAccount{ + Nonce: 0, + Balance: big.NewInt(500000000000000), + }, + } + _, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), alloc, false) + // Create the tracer, the EVM environment and run it + tracer, err := tracers.New("callTracer", nil) + if err != nil { + t.Fatalf("failed to create call tracer: %v", err) + } + evm := vm.NewEVM(context, txContext, statedb, params.MainnetChainConfig, vm.Config{Debug: true, Tracer: tracer}) + msg, err := tx.AsMessage(signer) + if err != nil { + t.Fatalf("failed to prepare transaction for tracing: %v", err) + } + st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas())) + if _, err = st.TransitionDb(); err != nil { + t.Fatalf("failed to execute transaction: %v", err) + } + // Retrieve the trace result and compare against the etalon + res, err := tracer.GetResult() + if err != nil { + t.Fatalf("failed to retrieve trace result: %v", err) + } + have := new(callTrace) + if err := json.Unmarshal(res, have); err != nil { + t.Fatalf("failed to unmarshal trace result: %v", err) + } + wantStr := `{"type":"CALL","from":"0x682a80a6f560eec50d54e63cbeda1c324c5f8d1b","to":"0x00000000000000000000000000000000deadbeef","value":"0x0","gas":"0x7148","gasUsed":"0x2d0","input":"0x","output":"0x","calls":[{"type":"CALL","from":"0x00000000000000000000000000000000deadbeef","to":"0x00000000000000000000000000000000000000ff","value":"0x0","gas":"0x6cbf","gasUsed":"0x0","input":"0x","output":"0x"}]}` + want := new(callTrace) + json.Unmarshal([]byte(wantStr), want) + if !jsonEqual(have, want) { + t.Error("have != want") + } +} diff --git a/eth/tracers/testdata/call_tracer_create.json b/eth/tracers/internal/tracetest/testdata/call_tracer/create.json similarity index 100% rename from eth/tracers/testdata/call_tracer_create.json rename to eth/tracers/internal/tracetest/testdata/call_tracer/create.json diff --git a/eth/tracers/testdata/call_tracer_deep_calls.json b/eth/tracers/internal/tracetest/testdata/call_tracer/deep_calls.json similarity index 100% rename from eth/tracers/testdata/call_tracer_deep_calls.json rename to eth/tracers/internal/tracetest/testdata/call_tracer/deep_calls.json diff --git a/eth/tracers/testdata/call_tracer_delegatecall.json b/eth/tracers/internal/tracetest/testdata/call_tracer/delegatecall.json similarity index 100% rename from eth/tracers/testdata/call_tracer_delegatecall.json rename to eth/tracers/internal/tracetest/testdata/call_tracer/delegatecall.json diff --git a/eth/tracers/internal/tracetest/testdata/call_tracer/inner_create_oog_outer_throw.json b/eth/tracers/internal/tracetest/testdata/call_tracer/inner_create_oog_outer_throw.json new file mode 100644 index 0000000000000..9395eb401c2a6 --- /dev/null +++ b/eth/tracers/internal/tracetest/testdata/call_tracer/inner_create_oog_outer_throw.json @@ -0,0 +1,77 @@ +{ + "context": { + "difficulty": "3451177886", + "gasLimit": "4709286", + "miner": "0x1585936b53834b021f68cc13eeefdec2efc8e724", + "number": "2290744", + "timestamp": "1513616439" + }, + "genesis": { + "alloc": { + "0x1d3ddf7caf024f253487e18bc4a15b1a360c170a": { + "balance": "0x0", + "code": 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100% rename from eth/tracers/testdata/call_tracer_simple.json rename to eth/tracers/internal/tracetest/testdata/call_tracer_legacy/simple.json diff --git a/eth/tracers/internal/tracetest/testdata/call_tracer_legacy/throw.json b/eth/tracers/internal/tracetest/testdata/call_tracer_legacy/throw.json new file mode 100644 index 0000000000000..09cf449776fbf --- /dev/null +++ b/eth/tracers/internal/tracetest/testdata/call_tracer_legacy/throw.json @@ -0,0 +1,62 @@ +{ + "context": { + "difficulty": "117009631", + "gasLimit": "4712388", + "miner": "0x294e5d6c39a36ce38af1dca70c1060f78dee8070", + "number": "25009", + "timestamp": "1479891666" + }, + "genesis": { + "alloc": { + "0x70c9217d814985faef62b124420f8dfbddd96433": { + "balance": "0x4ecd70668f5d854a", + "code": "0x", + "nonce": "1638", + "storage": {} + }, + "0xc212e03b9e060e36facad5fd8f4435412ca22e6b": { + "balance": "0x0", + "code": 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+ "nonce": "1", + "storage": { + "0x0000000000000000000000000000000000000000000000000000000000000001": "0x0000000000000000000000002cccf5e0538493c235d1c5ef6580f77d99e91396", + "0x0000000000000000000000000000000000000000000000000000000000000002": "0x00000000000000000000000000000000000000000000000000000000000061a9", + "0x0000000000000000000000000000000000000000000000000000000000000005": "0x00000000000000000000000070c9217d814985faef62b124420f8dfbddd96433" + } + } + }, + "config": { + "byzantiumBlock": 1700000, + "chainId": 3, + "daoForkSupport": true, + "eip150Block": 0, + "eip150Hash": "0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d", + "eip155Block": 10, + "eip158Block": 10, + "ethash": {}, + "homesteadBlock": 0 + }, + "difficulty": "117066792", + "extraData": "0xd783010502846765746887676f312e372e33856c696e7578", + "gasLimit": "4712388", + "hash": "0xe23e8d4562a1045b70cbc99fefb20c101a8f0fc8559a80d65fea8896e2f1d46e", + "miner": "0x71842f946b98800fe6feb49f0ae4e253259031c9", + "mixHash": "0x0aada9d6e93dd4db0d09c0488dc0a048fca2ccdc1f3fc7b83ba2a8d393a3a4ff", + "nonce": "0x70849d5838dee2e9", + "number": "25008", + "stateRoot": "0x1e01d2161794768c5b917069e73d86e8dca80cd7f3168c0597de420ab93a3b7b", + "timestamp": "1479891641", + "totalDifficulty": "1896347038589" + }, + "input": "0xf88b8206668504a817c8008303d09094c212e03b9e060e36facad5fd8f4435412ca22e6b80a451a34eb8000000000000000000000000000000000000000000000027fad02094277c000029a0692a3b4e7b2842f8dd7832e712c21e09f451f416c8976d5b8d02e8c0c2b4bea9a07645e90fc421b63dd755767fd93d3c03b4ec0c4d8fafa059558d08cf11d59750", + "result": { + "error": "invalid jump destination", + "from": "0x70c9217d814985faef62b124420f8dfbddd96433", + "gas": "0x37b38", + "gasUsed": "0x37b38", + "input": "0x51a34eb8000000000000000000000000000000000000000000000027fad02094277c0000", + "to": "0xc212e03b9e060e36facad5fd8f4435412ca22e6b", + "type": "CALL", + "value": "0x0" + } +} diff --git a/eth/tracers/tracer.go b/eth/tracers/js/bigint.go similarity index 57% rename from eth/tracers/tracer.go rename to eth/tracers/js/bigint.go index ba6592537300a..9aeb3304209fa 100644 --- a/eth/tracers/tracer.go +++ b/eth/tracers/js/bigint.go @@ -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 @@ -14,639 +14,7 @@ // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see . -package tracers - -import ( - "encoding/json" - "errors" - "fmt" - "math/big" - "sync/atomic" - "time" - "unsafe" - - "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/log" - "gopkg.in/olebedev/go-duktape.v3" -) +package js // bigIntegerJS is the minified version of https://github.com/peterolson/BigInteger.js. const bigIntegerJS = `var bigInt=function(undefined){"use strict";var BASE=1e7,LOG_BASE=7,MAX_INT=9007199254740992,MAX_INT_ARR=smallToArray(MAX_INT),LOG_MAX_INT=Math.log(MAX_INT);function Integer(v,radix){if(typeof v==="undefined")return Integer[0];if(typeof radix!=="undefined")return+radix===10?parseValue(v):parseBase(v,radix);return parseValue(v)}function BigInteger(value,sign){this.value=value;this.sign=sign;this.isSmall=false}BigInteger.prototype=Object.create(Integer.prototype);function SmallInteger(value){this.value=value;this.sign=value<0;this.isSmall=true}SmallInteger.prototype=Object.create(Integer.prototype);function isPrecise(n){return-MAX_INT0)return Math.floor(n);return Math.ceil(n)}function add(a,b){var l_a=a.length,l_b=b.length,r=new Array(l_a),carry=0,base=BASE,sum,i;for(i=0;i=base?1:0;r[i]=sum-carry*base}while(i0)r.push(carry);return r}function addAny(a,b){if(a.length>=b.length)return add(a,b);return add(b,a)}function addSmall(a,carry){var l=a.length,r=new Array(l),base=BASE,sum,i;for(i=0;i0){r[i++]=carry%base;carry=Math.floor(carry/base)}return r}BigInteger.prototype.add=function(v){var n=parseValue(v);if(this.sign!==n.sign){return this.subtract(n.negate())}var a=this.value,b=n.value;if(n.isSmall){return new BigInteger(addSmall(a,Math.abs(b)),this.sign)}return new BigInteger(addAny(a,b),this.sign)};BigInteger.prototype.plus=BigInteger.prototype.add;SmallInteger.prototype.add=function(v){var n=parseValue(v);var a=this.value;if(a<0!==n.sign){return this.subtract(n.negate())}var b=n.value;if(n.isSmall){if(isPrecise(a+b))return new SmallInteger(a+b);b=smallToArray(Math.abs(b))}return new BigInteger(addSmall(b,Math.abs(a)),a<0)};SmallInteger.prototype.plus=SmallInteger.prototype.add;function subtract(a,b){var a_l=a.length,b_l=b.length,r=new Array(a_l),borrow=0,base=BASE,i,difference;for(i=0;i=0){value=subtract(a,b)}else{value=subtract(b,a);sign=!sign}value=arrayToSmall(value);if(typeof value==="number"){if(sign)value=-value;return new SmallInteger(value)}return new BigInteger(value,sign)}function subtractSmall(a,b,sign){var l=a.length,r=new Array(l),carry=-b,base=BASE,i,difference;for(i=0;i=0)};SmallInteger.prototype.minus=SmallInteger.prototype.subtract;BigInteger.prototype.negate=function(){return new BigInteger(this.value,!this.sign)};SmallInteger.prototype.negate=function(){var sign=this.sign;var small=new SmallInteger(-this.value);small.sign=!sign;return small};BigInteger.prototype.abs=function(){return new BigInteger(this.value,false)};SmallInteger.prototype.abs=function(){return new SmallInteger(Math.abs(this.value))};function multiplyLong(a,b){var a_l=a.length,b_l=b.length,l=a_l+b_l,r=createArray(l),base=BASE,product,carry,i,a_i,b_j;for(i=0;i0){r[i++]=carry%base;carry=Math.floor(carry/base)}return r}function shiftLeft(x,n){var r=[];while(n-- >0)r.push(0);return r.concat(x)}function multiplyKaratsuba(x,y){var n=Math.max(x.length,y.length);if(n<=30)return multiplyLong(x,y);n=Math.ceil(n/2);var b=x.slice(n),a=x.slice(0,n),d=y.slice(n),c=y.slice(0,n);var ac=multiplyKaratsuba(a,c),bd=multiplyKaratsuba(b,d),abcd=multiplyKaratsuba(addAny(a,b),addAny(c,d));var product=addAny(addAny(ac,shiftLeft(subtract(subtract(abcd,ac),bd),n)),shiftLeft(bd,2*n));trim(product);return product}function useKaratsuba(l1,l2){return-.012*l1-.012*l2+15e-6*l1*l2>0}BigInteger.prototype.multiply=function(v){var n=parseValue(v),a=this.value,b=n.value,sign=this.sign!==n.sign,abs;if(n.isSmall){if(b===0)return Integer[0];if(b===1)return this;if(b===-1)return this.negate();abs=Math.abs(b);if(abs=0;shift--){quotientDigit=base-1;if(remainder[shift+b_l]!==divisorMostSignificantDigit){quotientDigit=Math.floor((remainder[shift+b_l]*base+remainder[shift+b_l-1])/divisorMostSignificantDigit)}carry=0;borrow=0;l=divisor.length;for(i=0;ib_l){highx=(highx+1)*base}guess=Math.ceil(highx/highy);do{check=multiplySmall(b,guess);if(compareAbs(check,part)<=0)break;guess--}while(guess);result.push(guess);part=subtract(part,check)}result.reverse();return[arrayToSmall(result),arrayToSmall(part)]}function divModSmall(value,lambda){var length=value.length,quotient=createArray(length),base=BASE,i,q,remainder,divisor;remainder=0;for(i=length-1;i>=0;--i){divisor=remainder*base+value[i];q=truncate(divisor/lambda);remainder=divisor-q*lambda;quotient[i]=q|0}return[quotient,remainder|0]}function divModAny(self,v){var value,n=parseValue(v);var a=self.value,b=n.value;var quotient;if(b===0)throw new Error("Cannot divide by zero");if(self.isSmall){if(n.isSmall){return[new SmallInteger(truncate(a/b)),new SmallInteger(a%b)]}return[Integer[0],self]}if(n.isSmall){if(b===1)return[self,Integer[0]];if(b==-1)return[self.negate(),Integer[0]];var abs=Math.abs(b);if(absb.length?1:-1}for(var i=a.length-1;i>=0;i--){if(a[i]!==b[i])return a[i]>b[i]?1:-1}return 0}BigInteger.prototype.compareAbs=function(v){var n=parseValue(v),a=this.value,b=n.value;if(n.isSmall)return 1;return compareAbs(a,b)};SmallInteger.prototype.compareAbs=function(v){var n=parseValue(v),a=Math.abs(this.value),b=n.value;if(n.isSmall){b=Math.abs(b);return a===b?0:a>b?1:-1}return-1};BigInteger.prototype.compare=function(v){if(v===Infinity){return-1}if(v===-Infinity){return 1}var n=parseValue(v),a=this.value,b=n.value;if(this.sign!==n.sign){return n.sign?1:-1}if(n.isSmall){return this.sign?-1:1}return compareAbs(a,b)*(this.sign?-1:1)};BigInteger.prototype.compareTo=BigInteger.prototype.compare;SmallInteger.prototype.compare=function(v){if(v===Infinity){return-1}if(v===-Infinity){return 1}var n=parseValue(v),a=this.value,b=n.value;if(n.isSmall){return a==b?0:a>b?1:-1}if(a<0!==n.sign){return a<0?-1:1}return a<0?1:-1};SmallInteger.prototype.compareTo=SmallInteger.prototype.compare;BigInteger.prototype.equals=function(v){return this.compare(v)===0};SmallInteger.prototype.eq=SmallInteger.prototype.equals=BigInteger.prototype.eq=BigInteger.prototype.equals;BigInteger.prototype.notEquals=function(v){return this.compare(v)!==0};SmallInteger.prototype.neq=SmallInteger.prototype.notEquals=BigInteger.prototype.neq=BigInteger.prototype.notEquals;BigInteger.prototype.greater=function(v){return this.compare(v)>0};SmallInteger.prototype.gt=SmallInteger.prototype.greater=BigInteger.prototype.gt=BigInteger.prototype.greater;BigInteger.prototype.lesser=function(v){return this.compare(v)<0};SmallInteger.prototype.lt=SmallInteger.prototype.lesser=BigInteger.prototype.lt=BigInteger.prototype.lesser;BigInteger.prototype.greaterOrEquals=function(v){return this.compare(v)>=0};SmallInteger.prototype.geq=SmallInteger.prototype.greaterOrEquals=BigInteger.prototype.geq=BigInteger.prototype.greaterOrEquals;BigInteger.prototype.lesserOrEquals=function(v){return this.compare(v)<=0};SmallInteger.prototype.leq=SmallInteger.prototype.lesserOrEquals=BigInteger.prototype.leq=BigInteger.prototype.lesserOrEquals;BigInteger.prototype.isEven=function(){return(this.value[0]&1)===0};SmallInteger.prototype.isEven=function(){return(this.value&1)===0};BigInteger.prototype.isOdd=function(){return(this.value[0]&1)===1};SmallInteger.prototype.isOdd=function(){return(this.value&1)===1};BigInteger.prototype.isPositive=function(){return!this.sign};SmallInteger.prototype.isPositive=function(){return this.value>0};BigInteger.prototype.isNegative=function(){return this.sign};SmallInteger.prototype.isNegative=function(){return this.value<0};BigInteger.prototype.isUnit=function(){return false};SmallInteger.prototype.isUnit=function(){return Math.abs(this.value)===1};BigInteger.prototype.isZero=function(){return false};SmallInteger.prototype.isZero=function(){return this.value===0};BigInteger.prototype.isDivisibleBy=function(v){var n=parseValue(v);var value=n.value;if(value===0)return false;if(value===1)return true;if(value===2)return this.isEven();return this.mod(n).equals(Integer[0])};SmallInteger.prototype.isDivisibleBy=BigInteger.prototype.isDivisibleBy;function isBasicPrime(v){var n=v.abs();if(n.isUnit())return false;if(n.equals(2)||n.equals(3)||n.equals(5))return true;if(n.isEven()||n.isDivisibleBy(3)||n.isDivisibleBy(5))return false;if(n.lesser(25))return true}BigInteger.prototype.isPrime=function(){var isPrime=isBasicPrime(this);if(isPrime!==undefined)return isPrime;var n=this.abs(),nPrev=n.prev();var a=[2,3,5,7,11,13,17,19],b=nPrev,d,t,i,x;while(b.isEven())b=b.divide(2);for(i=0;i-MAX_INT)return new SmallInteger(value-1);return new BigInteger(MAX_INT_ARR,true)};var powersOfTwo=[1];while(2*powersOfTwo[powersOfTwo.length-1]<=BASE)powersOfTwo.push(2*powersOfTwo[powersOfTwo.length-1]);var powers2Length=powersOfTwo.length,highestPower2=powersOfTwo[powers2Length-1];function shift_isSmall(n){return(typeof n==="number"||typeof n==="string")&&+Math.abs(n)<=BASE||n instanceof BigInteger&&n.value.length<=1}BigInteger.prototype.shiftLeft=function(n){if(!shift_isSmall(n)){throw new Error(String(n)+" is too large for shifting.")}n=+n;if(n<0)return this.shiftRight(-n);var result=this;while(n>=powers2Length){result=result.multiply(highestPower2);n-=powers2Length-1}return result.multiply(powersOfTwo[n])};SmallInteger.prototype.shiftLeft=BigInteger.prototype.shiftLeft;BigInteger.prototype.shiftRight=function(n){var remQuo;if(!shift_isSmall(n)){throw new Error(String(n)+" is too large for shifting.")}n=+n;if(n<0)return this.shiftLeft(-n);var result=this;while(n>=powers2Length){if(result.isZero())return result;remQuo=divModAny(result,highestPower2);result=remQuo[1].isNegative()?remQuo[0].prev():remQuo[0];n-=powers2Length-1}remQuo=divModAny(result,powersOfTwo[n]);return remQuo[1].isNegative()?remQuo[0].prev():remQuo[0]};SmallInteger.prototype.shiftRight=BigInteger.prototype.shiftRight;function bitwise(x,y,fn){y=parseValue(y);var xSign=x.isNegative(),ySign=y.isNegative();var xRem=xSign?x.not():x,yRem=ySign?y.not():y;var xDigit=0,yDigit=0;var xDivMod=null,yDivMod=null;var result=[];while(!xRem.isZero()||!yRem.isZero()){xDivMod=divModAny(xRem,highestPower2);xDigit=xDivMod[1].toJSNumber();if(xSign){xDigit=highestPower2-1-xDigit}yDivMod=divModAny(yRem,highestPower2);yDigit=yDivMod[1].toJSNumber();if(ySign){yDigit=highestPower2-1-yDigit}xRem=xDivMod[0];yRem=yDivMod[0];result.push(fn(xDigit,yDigit))}var sum=fn(xSign?1:0,ySign?1:0)!==0?bigInt(-1):bigInt(0);for(var i=result.length-1;i>=0;i-=1){sum=sum.multiply(highestPower2).add(bigInt(result[i]))}return sum}BigInteger.prototype.not=function(){return this.negate().prev()};SmallInteger.prototype.not=BigInteger.prototype.not;BigInteger.prototype.and=function(n){return bitwise(this,n,function(a,b){return a&b})};SmallInteger.prototype.and=BigInteger.prototype.and;BigInteger.prototype.or=function(n){return bitwise(this,n,function(a,b){return a|b})};SmallInteger.prototype.or=BigInteger.prototype.or;BigInteger.prototype.xor=function(n){return bitwise(this,n,function(a,b){return a^b})};SmallInteger.prototype.xor=BigInteger.prototype.xor;var LOBMASK_I=1<<30,LOBMASK_BI=(BASE&-BASE)*(BASE&-BASE)|LOBMASK_I;function roughLOB(n){var v=n.value,x=typeof v==="number"?v|LOBMASK_I:v[0]+v[1]*BASE|LOBMASK_BI;return x&-x}function max(a,b){a=parseValue(a);b=parseValue(b);return a.greater(b)?a:b}function min(a,b){a=parseValue(a);b=parseValue(b);return a.lesser(b)?a:b}function gcd(a,b){a=parseValue(a).abs();b=parseValue(b).abs();if(a.equals(b))return a;if(a.isZero())return b;if(b.isZero())return a;var c=Integer[1],d,t;while(a.isEven()&&b.isEven()){d=Math.min(roughLOB(a),roughLOB(b));a=a.divide(d);b=b.divide(d);c=c.multiply(d)}while(a.isEven()){a=a.divide(roughLOB(a))}do{while(b.isEven()){b=b.divide(roughLOB(b))}if(a.greater(b)){t=b;b=a;a=t}b=b.subtract(a)}while(!b.isZero());return c.isUnit()?a:a.multiply(c)}function lcm(a,b){a=parseValue(a).abs();b=parseValue(b).abs();return a.divide(gcd(a,b)).multiply(b)}function randBetween(a,b){a=parseValue(a);b=parseValue(b);var low=min(a,b),high=max(a,b);var range=high.subtract(low).add(1);if(range.isSmall)return low.add(Math.floor(Math.random()*range));var length=range.value.length-1;var result=[],restricted=true;for(var i=length;i>=0;i--){var top=restricted?range.value[i]:BASE;var digit=truncate(Math.random()*top);result.unshift(digit);if(digit=absBase){if(c==="1"&&absBase===1)continue;throw new Error(c+" is not a valid digit in base "+base+".")}else if(c.charCodeAt(0)-87>=absBase){throw new Error(c+" is not a valid digit in base "+base+".")}}}if(2<=base&&base<=36){if(length<=LOG_MAX_INT/Math.log(base)){var result=parseInt(text,base);if(isNaN(result)){throw new Error(c+" is not a valid digit in base "+base+".")}return new SmallInteger(parseInt(text,base))}}base=parseValue(base);var digits=[];var isNegative=text[0]==="-";for(i=isNegative?1:0;i");digits.push(parseValue(text.slice(start+1,i)))}else throw new Error(c+" is not a valid character")}return parseBaseFromArray(digits,base,isNegative)};function parseBaseFromArray(digits,base,isNegative){var val=Integer[0],pow=Integer[1],i;for(i=digits.length-1;i>=0;i--){val=val.add(digits[i].times(pow));pow=pow.times(base)}return isNegative?val.negate():val}function stringify(digit){var v=digit.value;if(typeof v==="number")v=[v];if(v.length===1&&v[0]<=35){return"0123456789abcdefghijklmnopqrstuvwxyz".charAt(v[0])}return"<"+v+">"}function toBase(n,base){base=bigInt(base);if(base.isZero()){if(n.isZero())return"0";throw new Error("Cannot convert nonzero numbers to base 0.")}if(base.equals(-1)){if(n.isZero())return"0";if(n.isNegative())return new Array(1-n).join("10");return"1"+new Array(+n).join("01")}var minusSign="";if(n.isNegative()&&base.isPositive()){minusSign="-";n=n.abs()}if(base.equals(1)){if(n.isZero())return"0";return minusSign+new Array(+n+1).join(1)}var out=[];var left=n,divmod;while(left.isNegative()||left.compareAbs(base)>=0){divmod=left.divmod(base);left=divmod.quotient;var digit=divmod.remainder;if(digit.isNegative()){digit=base.minus(digit).abs();left=left.next()}out.push(stringify(digit))}out.push(stringify(left));return minusSign+out.reverse().join("")}BigInteger.prototype.toString=function(radix){if(radix===undefined)radix=10;if(radix!==10)return toBase(this,radix);var v=this.value,l=v.length,str=String(v[--l]),zeros="0000000",digit;while(--l>=0){digit=String(v[l]);str+=zeros.slice(digit.length)+digit}var sign=this.sign?"-":"";return sign+str};SmallInteger.prototype.toString=function(radix){if(radix===undefined)radix=10;if(radix!=10)return toBase(this,radix);return String(this.value)};BigInteger.prototype.toJSON=SmallInteger.prototype.toJSON=function(){return this.toString()};BigInteger.prototype.valueOf=function(){return+this.toString()};BigInteger.prototype.toJSNumber=BigInteger.prototype.valueOf;SmallInteger.prototype.valueOf=function(){return this.value};SmallInteger.prototype.toJSNumber=SmallInteger.prototype.valueOf;function parseStringValue(v){if(isPrecise(+v)){var x=+v;if(x===truncate(x))return new SmallInteger(x);throw"Invalid integer: "+v}var sign=v[0]==="-";if(sign)v=v.slice(1);var split=v.split(/e/i);if(split.length>2)throw new Error("Invalid integer: "+split.join("e"));if(split.length===2){var exp=split[1];if(exp[0]==="+")exp=exp.slice(1);exp=+exp;if(exp!==truncate(exp)||!isPrecise(exp))throw new Error("Invalid integer: "+exp+" is not a valid exponent.");var text=split[0];var decimalPlace=text.indexOf(".");if(decimalPlace>=0){exp-=text.length-decimalPlace-1;text=text.slice(0,decimalPlace)+text.slice(decimalPlace+1)}if(exp<0)throw new Error("Cannot include negative exponent part for integers");text+=new Array(exp+1).join("0");v=text}var isValid=/^([0-9][0-9]*)$/.test(v);if(!isValid)throw new Error("Invalid integer: "+v);var r=[],max=v.length,l=LOG_BASE,min=max-l;while(max>0){r.push(+v.slice(min,max));min-=l;if(min<0)min=0;max-=l}trim(r);return new BigInteger(r,sign)}function parseNumberValue(v){if(isPrecise(v)){if(v!==truncate(v))throw new Error(v+" is not an integer.");return new SmallInteger(v)}return parseStringValue(v.toString())}function parseValue(v){if(typeof v==="number"){return parseNumberValue(v)}if(typeof v==="string"){return parseStringValue(v)}return v}for(var i=0;i<1e3;i++){Integer[i]=new SmallInteger(i);if(i>0)Integer[-i]=new SmallInteger(-i)}Integer.one=Integer[1];Integer.zero=Integer[0];Integer.minusOne=Integer[-1];Integer.max=max;Integer.min=min;Integer.gcd=gcd;Integer.lcm=lcm;Integer.isInstance=function(x){return x instanceof BigInteger||x instanceof SmallInteger};Integer.randBetween=randBetween;Integer.fromArray=function(digits,base,isNegative){return parseBaseFromArray(digits.map(parseValue),parseValue(base||10),isNegative)};return Integer}();if(typeof module!=="undefined"&&module.hasOwnProperty("exports")){module.exports=bigInt}if(typeof define==="function"&&define.amd){define("big-integer",[],function(){return bigInt})}; bigInt` - -// makeSlice convert an unsafe memory pointer with the given type into a Go byte -// slice. -// -// Note, the returned slice uses the same memory area as the input arguments. -// If those are duktape stack items, popping them off **will** make the slice -// contents change. -func makeSlice(ptr unsafe.Pointer, size uint) []byte { - var sl = struct { - addr uintptr - len int - cap int - }{uintptr(ptr), int(size), int(size)} - - return *(*[]byte)(unsafe.Pointer(&sl)) -} - -// popSlice pops a buffer off the JavaScript stack and returns it as a slice. -func popSlice(ctx *duktape.Context) []byte { - blob := common.CopyBytes(makeSlice(ctx.GetBuffer(-1))) - ctx.Pop() - return blob -} - -// pushBigInt create a JavaScript BigInteger in the VM. -func pushBigInt(n *big.Int, ctx *duktape.Context) { - ctx.GetGlobalString("bigInt") - ctx.PushString(n.String()) - ctx.Call(1) -} - -// opWrapper provides a JavaScript wrapper around OpCode. -type opWrapper struct { - op vm.OpCode -} - -// pushObject assembles a JSVM object wrapping a swappable opcode and pushes it -// onto the VM stack. -func (ow *opWrapper) pushObject(vm *duktape.Context) { - obj := vm.PushObject() - - vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushInt(int(ow.op)); return 1 }) - vm.PutPropString(obj, "toNumber") - - vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushString(ow.op.String()); return 1 }) - vm.PutPropString(obj, "toString") - - vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushBoolean(ow.op.IsPush()); return 1 }) - vm.PutPropString(obj, "isPush") -} - -// memoryWrapper provides a JavaScript wrapper around vm.Memory. -type memoryWrapper struct { - memory *vm.Memory -} - -// slice returns the requested range of memory as a byte slice. -func (mw *memoryWrapper) slice(begin, end int64) []byte { - if end == begin { - return []byte{} - } - if end < begin || begin < 0 { - // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go - // runtime goes belly up https://github.com/golang/go/issues/15639. - log.Warn("Tracer accessed out of bound memory", "offset", begin, "end", end) - return nil - } - if mw.memory.Len() < int(end) { - // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go - // runtime goes belly up https://github.com/golang/go/issues/15639. - log.Warn("Tracer accessed out of bound memory", "available", mw.memory.Len(), "offset", begin, "size", end-begin) - return nil - } - return mw.memory.GetCopy(begin, end-begin) -} - -// getUint returns the 32 bytes at the specified address interpreted as a uint. -func (mw *memoryWrapper) getUint(addr int64) *big.Int { - if mw.memory.Len() < int(addr)+32 || addr < 0 { - // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go - // runtime goes belly up https://github.com/golang/go/issues/15639. - log.Warn("Tracer accessed out of bound memory", "available", mw.memory.Len(), "offset", addr, "size", 32) - return new(big.Int) - } - return new(big.Int).SetBytes(mw.memory.GetPtr(addr, 32)) -} - -// pushObject assembles a JSVM object wrapping a swappable memory and pushes it -// onto the VM stack. -func (mw *memoryWrapper) pushObject(vm *duktape.Context) { - obj := vm.PushObject() - - // Generate the `slice` method which takes two ints and returns a buffer - vm.PushGoFunction(func(ctx *duktape.Context) int { - blob := mw.slice(int64(ctx.GetInt(-2)), int64(ctx.GetInt(-1))) - ctx.Pop2() - - ptr := ctx.PushFixedBuffer(len(blob)) - copy(makeSlice(ptr, uint(len(blob))), blob) - return 1 - }) - vm.PutPropString(obj, "slice") - - // Generate the `getUint` method which takes an int and returns a bigint - vm.PushGoFunction(func(ctx *duktape.Context) int { - offset := int64(ctx.GetInt(-1)) - ctx.Pop() - - pushBigInt(mw.getUint(offset), ctx) - return 1 - }) - vm.PutPropString(obj, "getUint") -} - -// stackWrapper provides a JavaScript wrapper around vm.Stack. -type stackWrapper struct { - stack *vm.Stack -} - -// peek returns the nth-from-the-top element of the stack. -func (sw *stackWrapper) peek(idx int) *big.Int { - if len(sw.stack.Data()) <= idx || idx < 0 { - // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go - // runtime goes belly up https://github.com/golang/go/issues/15639. - log.Warn("Tracer accessed out of bound stack", "size", len(sw.stack.Data()), "index", idx) - return new(big.Int) - } - return sw.stack.Back(idx).ToBig() -} - -// pushObject assembles a JSVM object wrapping a swappable stack and pushes it -// onto the VM stack. -func (sw *stackWrapper) pushObject(vm *duktape.Context) { - obj := vm.PushObject() - - vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushInt(len(sw.stack.Data())); return 1 }) - vm.PutPropString(obj, "length") - - // Generate the `peek` method which takes an int and returns a bigint - vm.PushGoFunction(func(ctx *duktape.Context) int { - offset := ctx.GetInt(-1) - ctx.Pop() - - pushBigInt(sw.peek(offset), ctx) - return 1 - }) - vm.PutPropString(obj, "peek") -} - -// dbWrapper provides a JavaScript wrapper around vm.Database. -type dbWrapper struct { - db vm.StateDB -} - -// pushObject assembles a JSVM object wrapping a swappable database and pushes it -// onto the VM stack. -func (dw *dbWrapper) pushObject(vm *duktape.Context) { - obj := vm.PushObject() - - // Push the wrapper for statedb.GetBalance - vm.PushGoFunction(func(ctx *duktape.Context) int { - pushBigInt(dw.db.GetBalance(common.BytesToAddress(popSlice(ctx))), ctx) - return 1 - }) - vm.PutPropString(obj, "getBalance") - - // Push the wrapper for statedb.GetNonce - vm.PushGoFunction(func(ctx *duktape.Context) int { - ctx.PushInt(int(dw.db.GetNonce(common.BytesToAddress(popSlice(ctx))))) - return 1 - }) - vm.PutPropString(obj, "getNonce") - - // Push the wrapper for statedb.GetCode - vm.PushGoFunction(func(ctx *duktape.Context) int { - code := dw.db.GetCode(common.BytesToAddress(popSlice(ctx))) - - ptr := ctx.PushFixedBuffer(len(code)) - copy(makeSlice(ptr, uint(len(code))), code) - return 1 - }) - vm.PutPropString(obj, "getCode") - - // Push the wrapper for statedb.GetState - vm.PushGoFunction(func(ctx *duktape.Context) int { - hash := popSlice(ctx) - addr := popSlice(ctx) - - state := dw.db.GetState(common.BytesToAddress(addr), common.BytesToHash(hash)) - - ptr := ctx.PushFixedBuffer(len(state)) - copy(makeSlice(ptr, uint(len(state))), state[:]) - return 1 - }) - vm.PutPropString(obj, "getState") - - // Push the wrapper for statedb.Exists - vm.PushGoFunction(func(ctx *duktape.Context) int { - ctx.PushBoolean(dw.db.Exist(common.BytesToAddress(popSlice(ctx)))) - return 1 - }) - vm.PutPropString(obj, "exists") -} - -// contractWrapper provides a JavaScript wrapper around vm.Contract -type contractWrapper struct { - contract *vm.Contract -} - -// pushObject assembles a JSVM object wrapping a swappable contract and pushes it -// onto the VM stack. -func (cw *contractWrapper) pushObject(vm *duktape.Context) { - obj := vm.PushObject() - - // Push the wrapper for contract.Caller - vm.PushGoFunction(func(ctx *duktape.Context) int { - ptr := ctx.PushFixedBuffer(20) - copy(makeSlice(ptr, 20), cw.contract.Caller().Bytes()) - return 1 - }) - vm.PutPropString(obj, "getCaller") - - // Push the wrapper for contract.Address - vm.PushGoFunction(func(ctx *duktape.Context) int { - ptr := ctx.PushFixedBuffer(20) - copy(makeSlice(ptr, 20), cw.contract.Address().Bytes()) - return 1 - }) - vm.PutPropString(obj, "getAddress") - - // Push the wrapper for contract.Value - vm.PushGoFunction(func(ctx *duktape.Context) int { - pushBigInt(cw.contract.Value(), ctx) - return 1 - }) - vm.PutPropString(obj, "getValue") - - // Push the wrapper for contract.Input - vm.PushGoFunction(func(ctx *duktape.Context) int { - blob := cw.contract.Input - - ptr := ctx.PushFixedBuffer(len(blob)) - copy(makeSlice(ptr, uint(len(blob))), blob) - return 1 - }) - vm.PutPropString(obj, "getInput") -} - -// Tracer provides an implementation of Tracer that evaluates a Javascript -// function for each VM execution step. -type Tracer struct { - vm *duktape.Context // Javascript VM instance - - tracerObject int // Stack index of the tracer JavaScript object - stateObject int // Stack index of the global state to pull arguments from - - opWrapper *opWrapper // Wrapper around the VM opcode - stackWrapper *stackWrapper // Wrapper around the VM stack - memoryWrapper *memoryWrapper // Wrapper around the VM memory - contractWrapper *contractWrapper // Wrapper around the contract object - dbWrapper *dbWrapper // Wrapper around the VM environment - - pcValue *uint // Swappable pc value wrapped by a log accessor - gasValue *uint // Swappable gas value wrapped by a log accessor - costValue *uint // Swappable cost value wrapped by a log accessor - depthValue *uint // Swappable depth value wrapped by a log accessor - errorValue *string // Swappable error value wrapped by a log accessor - refundValue *uint // Swappable refund value wrapped by a log accessor - - ctx map[string]interface{} // Transaction context gathered throughout execution - err error // Error, if one has occurred - - interrupt uint32 // Atomic flag to signal execution interruption - reason error // Textual reason for the interruption -} - -// New instantiates a new tracer instance. code specifies a Javascript snippet, -// which must evaluate to an expression returning an object with 'step', 'fault' -// and 'result' functions. -func New(code string, txCtx vm.TxContext) (*Tracer, error) { - // Resolve any tracers by name and assemble the tracer object - if tracer, ok := tracer(code); ok { - code = tracer - } - tracer := &Tracer{ - vm: duktape.New(), - ctx: make(map[string]interface{}), - opWrapper: new(opWrapper), - stackWrapper: new(stackWrapper), - memoryWrapper: new(memoryWrapper), - contractWrapper: new(contractWrapper), - dbWrapper: new(dbWrapper), - pcValue: new(uint), - gasValue: new(uint), - costValue: new(uint), - depthValue: new(uint), - refundValue: new(uint), - } - tracer.ctx["gasPrice"] = txCtx.GasPrice - - // Set up builtins for this environment - tracer.vm.PushGlobalGoFunction("toHex", func(ctx *duktape.Context) int { - ctx.PushString(hexutil.Encode(popSlice(ctx))) - return 1 - }) - tracer.vm.PushGlobalGoFunction("toWord", func(ctx *duktape.Context) int { - var word common.Hash - if ptr, size := ctx.GetBuffer(-1); ptr != nil { - word = common.BytesToHash(makeSlice(ptr, size)) - } else { - word = common.HexToHash(ctx.GetString(-1)) - } - ctx.Pop() - copy(makeSlice(ctx.PushFixedBuffer(32), 32), word[:]) - return 1 - }) - tracer.vm.PushGlobalGoFunction("toAddress", func(ctx *duktape.Context) int { - var addr common.Address - if ptr, size := ctx.GetBuffer(-1); ptr != nil { - addr = common.BytesToAddress(makeSlice(ptr, size)) - } else { - addr = common.HexToAddress(ctx.GetString(-1)) - } - ctx.Pop() - copy(makeSlice(ctx.PushFixedBuffer(20), 20), addr[:]) - return 1 - }) - tracer.vm.PushGlobalGoFunction("toContract", func(ctx *duktape.Context) int { - var from common.Address - if ptr, size := ctx.GetBuffer(-2); ptr != nil { - from = common.BytesToAddress(makeSlice(ptr, size)) - } else { - from = common.HexToAddress(ctx.GetString(-2)) - } - nonce := uint64(ctx.GetInt(-1)) - ctx.Pop2() - - contract := crypto.CreateAddress(from, nonce) - copy(makeSlice(ctx.PushFixedBuffer(20), 20), contract[:]) - return 1 - }) - tracer.vm.PushGlobalGoFunction("toContract2", func(ctx *duktape.Context) int { - var from common.Address - if ptr, size := ctx.GetBuffer(-3); ptr != nil { - from = common.BytesToAddress(makeSlice(ptr, size)) - } else { - from = common.HexToAddress(ctx.GetString(-3)) - } - // Retrieve salt hex string from js stack - salt := common.HexToHash(ctx.GetString(-2)) - // Retrieve code slice from js stack - var code []byte - if ptr, size := ctx.GetBuffer(-1); ptr != nil { - code = common.CopyBytes(makeSlice(ptr, size)) - } else { - code = common.FromHex(ctx.GetString(-1)) - } - codeHash := crypto.Keccak256(code) - ctx.Pop3() - contract := crypto.CreateAddress2(from, salt, codeHash) - copy(makeSlice(ctx.PushFixedBuffer(20), 20), contract[:]) - return 1 - }) - tracer.vm.PushGlobalGoFunction("isPrecompiled", func(ctx *duktape.Context) int { - _, ok := vm.PrecompiledContractsIstanbul[common.BytesToAddress(popSlice(ctx))] - ctx.PushBoolean(ok) - return 1 - }) - tracer.vm.PushGlobalGoFunction("slice", func(ctx *duktape.Context) int { - start, end := ctx.GetInt(-2), ctx.GetInt(-1) - ctx.Pop2() - - blob := popSlice(ctx) - size := end - start - - if start < 0 || start > end || end > len(blob) { - // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go - // runtime goes belly up https://github.com/golang/go/issues/15639. - log.Warn("Tracer accessed out of bound memory", "available", len(blob), "offset", start, "size", size) - ctx.PushFixedBuffer(0) - return 1 - } - copy(makeSlice(ctx.PushFixedBuffer(size), uint(size)), blob[start:end]) - return 1 - }) - // Push the JavaScript tracer as object #0 onto the JSVM stack and validate it - if err := tracer.vm.PevalString("(" + code + ")"); err != nil { - log.Warn("Failed to compile tracer", "err", err) - return nil, err - } - tracer.tracerObject = 0 // yeah, nice, eval can't return the index itself - - if !tracer.vm.GetPropString(tracer.tracerObject, "step") { - return nil, fmt.Errorf("trace object must expose a function step()") - } - tracer.vm.Pop() - - if !tracer.vm.GetPropString(tracer.tracerObject, "fault") { - return nil, fmt.Errorf("trace object must expose a function fault()") - } - tracer.vm.Pop() - - if !tracer.vm.GetPropString(tracer.tracerObject, "result") { - return nil, fmt.Errorf("trace object must expose a function result()") - } - tracer.vm.Pop() - - // Tracer is valid, inject the big int library to access large numbers - tracer.vm.EvalString(bigIntegerJS) - tracer.vm.PutGlobalString("bigInt") - - // Push the global environment state as object #1 into the JSVM stack - tracer.stateObject = tracer.vm.PushObject() - - logObject := tracer.vm.PushObject() - - tracer.opWrapper.pushObject(tracer.vm) - tracer.vm.PutPropString(logObject, "op") - - tracer.stackWrapper.pushObject(tracer.vm) - tracer.vm.PutPropString(logObject, "stack") - - tracer.memoryWrapper.pushObject(tracer.vm) - tracer.vm.PutPropString(logObject, "memory") - - tracer.contractWrapper.pushObject(tracer.vm) - tracer.vm.PutPropString(logObject, "contract") - - tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.pcValue); return 1 }) - tracer.vm.PutPropString(logObject, "getPC") - - tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.gasValue); return 1 }) - tracer.vm.PutPropString(logObject, "getGas") - - tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.costValue); return 1 }) - tracer.vm.PutPropString(logObject, "getCost") - - tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.depthValue); return 1 }) - tracer.vm.PutPropString(logObject, "getDepth") - - tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.refundValue); return 1 }) - tracer.vm.PutPropString(logObject, "getRefund") - - tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { - if tracer.errorValue != nil { - ctx.PushString(*tracer.errorValue) - } else { - ctx.PushUndefined() - } - return 1 - }) - tracer.vm.PutPropString(logObject, "getError") - - tracer.vm.PutPropString(tracer.stateObject, "log") - - tracer.dbWrapper.pushObject(tracer.vm) - tracer.vm.PutPropString(tracer.stateObject, "db") - - return tracer, nil -} - -// Stop terminates execution of the tracer at the first opportune moment. -func (jst *Tracer) Stop(err error) { - jst.reason = err - atomic.StoreUint32(&jst.interrupt, 1) -} - -// call executes a method on a JS object, catching any errors, formatting and -// returning them as error objects. -func (jst *Tracer) call(method string, args ...string) (json.RawMessage, error) { - // Execute the JavaScript call and return any error - jst.vm.PushString(method) - for _, arg := range args { - jst.vm.GetPropString(jst.stateObject, arg) - } - code := jst.vm.PcallProp(jst.tracerObject, len(args)) - defer jst.vm.Pop() - - if code != 0 { - err := jst.vm.SafeToString(-1) - return nil, errors.New(err) - } - // No error occurred, extract return value and return - return json.RawMessage(jst.vm.JsonEncode(-1)), nil -} - -func wrapError(context string, err error) error { - return fmt.Errorf("%v in server-side tracer function '%v'", err, context) -} - -// CaptureStart implements the Tracer interface to initialize the tracing operation. -func (jst *Tracer) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) { - jst.ctx["type"] = "CALL" - if create { - jst.ctx["type"] = "CREATE" - } - jst.ctx["from"] = from - jst.ctx["to"] = to - jst.ctx["input"] = input - jst.ctx["gas"] = gas - jst.ctx["value"] = value - - // Initialize the context - jst.ctx["block"] = env.Context.BlockNumber.Uint64() - jst.dbWrapper.db = env.StateDB - // Compute intrinsic gas - isHomestead := env.ChainConfig().IsHomestead(env.Context.BlockNumber) - isIstanbul := env.ChainConfig().IsIstanbul(env.Context.BlockNumber) - intrinsicGas, err := core.IntrinsicGas(input, nil, jst.ctx["type"] == "CREATE", isHomestead, isIstanbul) - if err != nil { - return - } - jst.ctx["intrinsicGas"] = intrinsicGas -} - -// CaptureState implements the Tracer interface to trace a single step of VM execution. -func (jst *Tracer) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) { - 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 - } - jst.opWrapper.op = op - jst.stackWrapper.stack = scope.Stack - jst.memoryWrapper.memory = scope.Memory - jst.contractWrapper.contract = scope.Contract - - *jst.pcValue = uint(pc) - *jst.gasValue = uint(gas) - *jst.costValue = uint(cost) - *jst.depthValue = uint(depth) - *jst.refundValue = uint(env.StateDB.GetRefund()) - - jst.errorValue = nil - if err != nil { - jst.errorValue = new(string) - *jst.errorValue = err.Error() - } - - if _, err := jst.call("step", "log", "db"); err != nil { - jst.err = wrapError("step", err) - } -} - -// CaptureFault implements the Tracer interface to trace an execution fault -func (jst *Tracer) CaptureFault(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, depth int, err error) { - if jst.err != nil { - return - } - // Apart from the error, everything matches the previous invocation - jst.errorValue = new(string) - *jst.errorValue = err.Error() - - if _, err := jst.call("fault", "log", "db"); err != nil { - jst.err = wrapError("fault", err) - } -} - -// CaptureEnd is called after the call finishes to finalize the tracing. -func (jst *Tracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) { - jst.ctx["output"] = output - jst.ctx["time"] = t.String() - jst.ctx["gasUsed"] = gasUsed - - if err != nil { - jst.ctx["error"] = err.Error() - } -} - -// 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() - - for key, val := range jst.ctx { - switch val := val.(type) { - case uint64: - jst.vm.PushUint(uint(val)) - - case string: - jst.vm.PushString(val) - - case []byte: - ptr := jst.vm.PushFixedBuffer(len(val)) - copy(makeSlice(ptr, uint(len(val))), val) - - case common.Address: - ptr := jst.vm.PushFixedBuffer(20) - copy(makeSlice(ptr, 20), val[:]) - - case *big.Int: - pushBigInt(val, jst.vm) - - default: - panic(fmt.Sprintf("unsupported type: %T", val)) - } - jst.vm.PutPropString(obj, key) - } - jst.vm.PutPropString(jst.stateObject, "ctx") - - // Finalize the trace and return the results - result, err := jst.call("result", "ctx", "db") - if err != nil { - jst.err = wrapError("result", err) - } - // Clean up the JavaScript environment - jst.vm.DestroyHeap() - jst.vm.Destroy() - - return result, jst.err -} diff --git a/eth/tracers/js/internal/tracers/4byte_tracer.js b/eth/tracers/js/internal/tracers/4byte_tracer.js new file mode 100644 index 0000000000000..9ec3209f8b184 --- /dev/null +++ b/eth/tracers/js/internal/tracers/4byte_tracer.js @@ -0,0 +1,65 @@ +// Copyright 2017 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 . + +// 4byteTracer 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: "4byteTracer"}) +// { +// 0x27dc297e-128: 1, +// 0x38cc4831-0: 2, +// 0x524f3889-96: 1, +// 0xadf59f99-288: 1, +// 0xc281d19e-0: 1 +// } +{ + // ids aggregates the 4byte ids found. + ids : {}, + + // store save the given indentifier and datasize. + store: function(id, size){ + var key = "" + toHex(id) + "-" + size; + this.ids[key] = this.ids[key] + 1 || 1; + }, + + enter: function(frame) { + // Skip any pre-compile invocations, those are just fancy opcodes + if (isPrecompiled(frame.getTo())) { + return; + } + var input = frame.getInput() + if (input.length >= 4) { + this.store(slice(input, 0, 4), input.length - 4); + } + }, + + exit: function(frameResult) {}, + + // fault is invoked when the actual execution of an opcode fails. + fault: function(log, db) {}, + + // result is invoked when all the opcodes have been iterated over and returns + // the final result of the tracing. + result: function(ctx) { + // Save the outer calldata also + if (ctx.input.length >= 4) { + this.store(slice(ctx.input, 0, 4), ctx.input.length-4) + } + return this.ids; + }, +} diff --git a/eth/tracers/internal/tracers/4byte_tracer.js b/eth/tracers/js/internal/tracers/4byte_tracer_legacy.js similarity index 100% rename from eth/tracers/internal/tracers/4byte_tracer.js rename to eth/tracers/js/internal/tracers/4byte_tracer_legacy.js diff --git a/eth/tracers/internal/tracers/assets.go b/eth/tracers/js/internal/tracers/assets.go similarity index 57% rename from eth/tracers/internal/tracers/assets.go rename to eth/tracers/js/internal/tracers/assets.go index 7f45ab286e75f..37e3702400e1b 100644 --- a/eth/tracers/internal/tracers/assets.go +++ b/eth/tracers/js/internal/tracers/assets.go @@ -1,8 +1,10 @@ // Code generated by go-bindata. DO NOT EDIT. // sources: -// 4byte_tracer.js (2.933kB) +// 4byte_tracer.js (2.224kB) +// 4byte_tracer_legacy.js (2.933kB) // bigram_tracer.js (1.712kB) -// call_tracer.js (8.956kB) +// call_tracer_js.js (3.497kB) +// call_tracer_legacy.js (8.956kB) // evmdis_tracer.js (4.195kB) // noop_tracer.js (1.271kB) // opcount_tracer.js (1.372kB) @@ -77,7 +79,7 @@ func (fi bindataFileInfo) Sys() interface{} { return nil } -var __4byte_tracerJs = 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+var __4byte_tracerJs = 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func _4byte_tracerJsBytes() ([]byte, error) { return bindataRead( @@ -93,6 +95,26 @@ 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}} + return a, nil +} + +var __4byte_tracer_legacyJs = 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+ +func _4byte_tracer_legacyJsBytes() ([]byte, error) { + return bindataRead( + __4byte_tracer_legacyJs, + "4byte_tracer_legacy.js", + ) +} + +func _4byte_tracer_legacyJs() (*asset, error) { + bytes, err := _4byte_tracer_legacyJsBytes() + if err != nil { + return nil, err + } + + info := bindataFileInfo{name: "4byte_tracer_legacy.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)} a := &asset{bytes: bytes, info: info, digest: [32]uint8{0xb4, 0xc5, 0x48, 0x2d, 0xd9, 0x43, 0x95, 0x93, 0x3b, 0x93, 0x2c, 0x47, 0x8c, 0x84, 0x32, 0x3c, 0x8b, 0x2e, 0xf3, 0x72, 0xc4, 0x57, 0xe6, 0x3a, 0xb3, 0xdf, 0x1d, 0xbf, 0x45, 0x3, 0xfc, 0xa}} return a, nil } @@ -117,22 +139,42 @@ func bigram_tracerJs() (*asset, error) { return a, nil } -var _call_tracerJs = 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+var _call_tracer_jsJs = 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+ +func call_tracer_jsJsBytes() ([]byte, error) { + return bindataRead( + _call_tracer_jsJs, + "call_tracer_js.js", + ) +} + +func call_tracer_jsJs() (*asset, error) { + bytes, err := call_tracer_jsJsBytes() + if err != nil { + return nil, err + } + + info := bindataFileInfo{name: "call_tracer_js.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)} + a := &asset{bytes: bytes, info: info, digest: [32]uint8{0x42, 0x13, 0x7a, 0x14, 0xbf, 0xa7, 0x49, 0x4f, 0xb4, 0x4f, 0x45, 0x1, 0xbc, 0x9e, 0xd1, 0x8e, 0xc7, 0xee, 0x61, 0xfa, 0x82, 0x52, 0xa4, 0x78, 0xfe, 0xff, 0xb1, 0x68, 0x1d, 0xcc, 0x1d, 0x8e}} + return a, nil +} + +var _call_tracer_legacyJs = 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-func call_tracerJsBytes() ([]byte, error) { +func call_tracer_legacyJsBytes() ([]byte, error) { return bindataRead( - _call_tracerJs, - "call_tracer.js", + _call_tracer_legacyJs, + "call_tracer_legacy.js", ) } -func call_tracerJs() (*asset, error) { - bytes, err := call_tracerJsBytes() +func call_tracer_legacyJs() (*asset, error) { + bytes, err := call_tracer_legacyJsBytes() if err != nil { return nil, err } - info := bindataFileInfo{name: "call_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)} + 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 +390,17 @@ 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, + "4byte_tracer_legacy.js": _4byte_tracer_legacyJs, + "bigram_tracer.js": bigram_tracerJs, + "call_tracer_js.js": call_tracer_jsJs, + "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 +447,17 @@ 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{}}, + "4byte_tracer_legacy.js": {_4byte_tracer_legacyJs, map[string]*bintree{}}, + "bigram_tracer.js": {bigram_tracerJs, map[string]*bintree{}}, + "call_tracer_js.js": {call_tracer_jsJs, 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/bigram_tracer.js b/eth/tracers/js/internal/tracers/bigram_tracer.js similarity index 100% rename from eth/tracers/internal/tracers/bigram_tracer.js rename to eth/tracers/js/internal/tracers/bigram_tracer.js diff --git a/eth/tracers/js/internal/tracers/call_tracer_js.js b/eth/tracers/js/internal/tracers/call_tracer_js.js new file mode 100644 index 0000000000000..7da7bf216a258 --- /dev/null +++ b/eth/tracers/js/internal/tracers/call_tracer_js.js @@ -0,0 +1,112 @@ +// 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 . + + +// callFrameTracer uses the new call frame tracing methods to report useful information +// about internal messages of a transaction. +{ + callstack: [{}], + fault: function(log, db) {}, + 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. + 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. + +// package js is a collection of tracers written in javascript. +package js + +import ( + "encoding/json" + "errors" + "fmt" + "math/big" + "strings" + "sync/atomic" + "time" + "unicode" + "unsafe" + + "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" + tracers2 "github.com/ethereum/go-ethereum/eth/tracers" + "github.com/ethereum/go-ethereum/eth/tracers/js/internal/tracers" + "github.com/ethereum/go-ethereum/log" + "gopkg.in/olebedev/go-duktape.v3" +) + +// camel converts a snake cased input string into a camel cased output. +func camel(str string) string { + pieces := strings.Split(str, "_") + for i := 1; i < len(pieces); i++ { + pieces[i] = string(unicode.ToUpper(rune(pieces[i][0]))) + pieces[i][1:] + } + return strings.Join(pieces, "") +} + +var assetTracers = make(map[string]string) + +// init retrieves the JavaScript transaction tracers included in go-ethereum. +func init() { + for _, file := range tracers.AssetNames() { + name := camel(strings.TrimSuffix(file, ".js")) + assetTracers[name] = string(tracers.MustAsset(file)) + } + tracers2.RegisterLookup(true, newJsTracer) +} + +// makeSlice convert an unsafe memory pointer with the given type into a Go byte +// slice. +// +// Note, the returned slice uses the same memory area as the input arguments. +// If those are duktape stack items, popping them off **will** make the slice +// contents change. +func makeSlice(ptr unsafe.Pointer, size uint) []byte { + var sl = struct { + addr uintptr + len int + cap int + }{uintptr(ptr), int(size), int(size)} + + return *(*[]byte)(unsafe.Pointer(&sl)) +} + +// popSlice pops a buffer off the JavaScript stack and returns it as a slice. +func popSlice(ctx *duktape.Context) []byte { + blob := common.CopyBytes(makeSlice(ctx.GetBuffer(-1))) + ctx.Pop() + return blob +} + +// pushBigInt create a JavaScript BigInteger in the VM. +func pushBigInt(n *big.Int, ctx *duktape.Context) { + ctx.GetGlobalString("bigInt") + ctx.PushString(n.String()) + ctx.Call(1) +} + +// opWrapper provides a JavaScript wrapper around OpCode. +type opWrapper struct { + op vm.OpCode +} + +// pushObject assembles a JSVM object wrapping a swappable opcode and pushes it +// onto the VM stack. +func (ow *opWrapper) pushObject(vm *duktape.Context) { + obj := vm.PushObject() + + vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushInt(int(ow.op)); return 1 }) + vm.PutPropString(obj, "toNumber") + + vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushString(ow.op.String()); return 1 }) + vm.PutPropString(obj, "toString") + + vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushBoolean(ow.op.IsPush()); return 1 }) + vm.PutPropString(obj, "isPush") +} + +// memoryWrapper provides a JavaScript wrapper around vm.Memory. +type memoryWrapper struct { + memory *vm.Memory +} + +// slice returns the requested range of memory as a byte slice. +func (mw *memoryWrapper) slice(begin, end int64) []byte { + if end == begin { + return []byte{} + } + if end < begin || begin < 0 { + // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go + // runtime goes belly up https://github.com/golang/go/issues/15639. + log.Warn("Tracer accessed out of bound memory", "offset", begin, "end", end) + return nil + } + if mw.memory.Len() < int(end) { + // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go + // runtime goes belly up https://github.com/golang/go/issues/15639. + log.Warn("Tracer accessed out of bound memory", "available", mw.memory.Len(), "offset", begin, "size", end-begin) + return nil + } + return mw.memory.GetCopy(begin, end-begin) +} + +// getUint returns the 32 bytes at the specified address interpreted as a uint. +func (mw *memoryWrapper) getUint(addr int64) *big.Int { + if mw.memory.Len() < int(addr)+32 || addr < 0 { + // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go + // runtime goes belly up https://github.com/golang/go/issues/15639. + log.Warn("Tracer accessed out of bound memory", "available", mw.memory.Len(), "offset", addr, "size", 32) + return new(big.Int) + } + return new(big.Int).SetBytes(mw.memory.GetPtr(addr, 32)) +} + +// pushObject assembles a JSVM object wrapping a swappable memory and pushes it +// onto the VM stack. +func (mw *memoryWrapper) pushObject(vm *duktape.Context) { + obj := vm.PushObject() + + // Generate the `slice` method which takes two ints and returns a buffer + vm.PushGoFunction(func(ctx *duktape.Context) int { + blob := mw.slice(int64(ctx.GetInt(-2)), int64(ctx.GetInt(-1))) + ctx.Pop2() + + ptr := ctx.PushFixedBuffer(len(blob)) + copy(makeSlice(ptr, uint(len(blob))), blob) + return 1 + }) + vm.PutPropString(obj, "slice") + + // Generate the `getUint` method which takes an int and returns a bigint + vm.PushGoFunction(func(ctx *duktape.Context) int { + offset := int64(ctx.GetInt(-1)) + ctx.Pop() + + pushBigInt(mw.getUint(offset), ctx) + return 1 + }) + vm.PutPropString(obj, "getUint") +} + +// stackWrapper provides a JavaScript wrapper around vm.Stack. +type stackWrapper struct { + stack *vm.Stack +} + +// peek returns the nth-from-the-top element of the stack. +func (sw *stackWrapper) peek(idx int) *big.Int { + if len(sw.stack.Data()) <= idx || idx < 0 { + // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go + // runtime goes belly up https://github.com/golang/go/issues/15639. + log.Warn("Tracer accessed out of bound stack", "size", len(sw.stack.Data()), "index", idx) + return new(big.Int) + } + return sw.stack.Back(idx).ToBig() +} + +// pushObject assembles a JSVM object wrapping a swappable stack and pushes it +// onto the VM stack. +func (sw *stackWrapper) pushObject(vm *duktape.Context) { + obj := vm.PushObject() + + vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushInt(len(sw.stack.Data())); return 1 }) + vm.PutPropString(obj, "length") + + // Generate the `peek` method which takes an int and returns a bigint + vm.PushGoFunction(func(ctx *duktape.Context) int { + offset := ctx.GetInt(-1) + ctx.Pop() + + pushBigInt(sw.peek(offset), ctx) + return 1 + }) + vm.PutPropString(obj, "peek") +} + +// dbWrapper provides a JavaScript wrapper around vm.Database. +type dbWrapper struct { + db vm.StateDB +} + +// pushObject assembles a JSVM object wrapping a swappable database and pushes it +// onto the VM stack. +func (dw *dbWrapper) pushObject(vm *duktape.Context) { + obj := vm.PushObject() + + // Push the wrapper for statedb.GetBalance + vm.PushGoFunction(func(ctx *duktape.Context) int { + pushBigInt(dw.db.GetBalance(common.BytesToAddress(popSlice(ctx))), ctx) + return 1 + }) + vm.PutPropString(obj, "getBalance") + + // Push the wrapper for statedb.GetNonce + vm.PushGoFunction(func(ctx *duktape.Context) int { + ctx.PushInt(int(dw.db.GetNonce(common.BytesToAddress(popSlice(ctx))))) + return 1 + }) + vm.PutPropString(obj, "getNonce") + + // Push the wrapper for statedb.GetCode + vm.PushGoFunction(func(ctx *duktape.Context) int { + code := dw.db.GetCode(common.BytesToAddress(popSlice(ctx))) + + ptr := ctx.PushFixedBuffer(len(code)) + copy(makeSlice(ptr, uint(len(code))), code) + return 1 + }) + vm.PutPropString(obj, "getCode") + + // Push the wrapper for statedb.GetState + vm.PushGoFunction(func(ctx *duktape.Context) int { + hash := popSlice(ctx) + addr := popSlice(ctx) + + state := dw.db.GetState(common.BytesToAddress(addr), common.BytesToHash(hash)) + + ptr := ctx.PushFixedBuffer(len(state)) + copy(makeSlice(ptr, uint(len(state))), state[:]) + return 1 + }) + vm.PutPropString(obj, "getState") + + // Push the wrapper for statedb.Exists + vm.PushGoFunction(func(ctx *duktape.Context) int { + ctx.PushBoolean(dw.db.Exist(common.BytesToAddress(popSlice(ctx)))) + return 1 + }) + vm.PutPropString(obj, "exists") +} + +// contractWrapper provides a JavaScript wrapper around vm.Contract +type contractWrapper struct { + contract *vm.Contract +} + +// pushObject assembles a JSVM object wrapping a swappable contract and pushes it +// onto the VM stack. +func (cw *contractWrapper) pushObject(vm *duktape.Context) { + obj := vm.PushObject() + + // Push the wrapper for contract.Caller + vm.PushGoFunction(func(ctx *duktape.Context) int { + ptr := ctx.PushFixedBuffer(20) + copy(makeSlice(ptr, 20), cw.contract.Caller().Bytes()) + return 1 + }) + vm.PutPropString(obj, "getCaller") + + // Push the wrapper for contract.Address + vm.PushGoFunction(func(ctx *duktape.Context) int { + ptr := ctx.PushFixedBuffer(20) + copy(makeSlice(ptr, 20), cw.contract.Address().Bytes()) + return 1 + }) + vm.PutPropString(obj, "getAddress") + + // Push the wrapper for contract.Value + vm.PushGoFunction(func(ctx *duktape.Context) int { + pushBigInt(cw.contract.Value(), ctx) + return 1 + }) + vm.PutPropString(obj, "getValue") + + // Push the wrapper for contract.Input + vm.PushGoFunction(func(ctx *duktape.Context) int { + blob := cw.contract.Input + + ptr := ctx.PushFixedBuffer(len(blob)) + copy(makeSlice(ptr, uint(len(blob))), blob) + return 1 + }) + vm.PutPropString(obj, "getInput") +} + +type frame struct { + typ *string + from *common.Address + to *common.Address + input []byte + gas *uint + value *big.Int +} + +func newFrame() *frame { + return &frame{ + typ: new(string), + from: new(common.Address), + to: new(common.Address), + gas: new(uint), + } +} + +func (f *frame) pushObject(vm *duktape.Context) { + obj := vm.PushObject() + + vm.PushGoFunction(func(ctx *duktape.Context) int { pushValue(ctx, *f.typ); return 1 }) + vm.PutPropString(obj, "getType") + + vm.PushGoFunction(func(ctx *duktape.Context) int { pushValue(ctx, *f.from); return 1 }) + vm.PutPropString(obj, "getFrom") + + vm.PushGoFunction(func(ctx *duktape.Context) int { pushValue(ctx, *f.to); return 1 }) + vm.PutPropString(obj, "getTo") + + vm.PushGoFunction(func(ctx *duktape.Context) int { pushValue(ctx, f.input); return 1 }) + vm.PutPropString(obj, "getInput") + + vm.PushGoFunction(func(ctx *duktape.Context) int { pushValue(ctx, *f.gas); return 1 }) + vm.PutPropString(obj, "getGas") + + vm.PushGoFunction(func(ctx *duktape.Context) int { + if f.value != nil { + pushValue(ctx, f.value) + } else { + ctx.PushUndefined() + } + return 1 + }) + vm.PutPropString(obj, "getValue") +} + +type frameResult struct { + gasUsed *uint + output []byte + errorValue *string +} + +func newFrameResult() *frameResult { + return &frameResult{ + gasUsed: new(uint), + } +} + +func (r *frameResult) pushObject(vm *duktape.Context) { + obj := vm.PushObject() + + vm.PushGoFunction(func(ctx *duktape.Context) int { pushValue(ctx, *r.gasUsed); return 1 }) + vm.PutPropString(obj, "getGasUsed") + + vm.PushGoFunction(func(ctx *duktape.Context) int { pushValue(ctx, r.output); return 1 }) + vm.PutPropString(obj, "getOutput") + + vm.PushGoFunction(func(ctx *duktape.Context) int { + if r.errorValue != nil { + pushValue(ctx, *r.errorValue) + } else { + ctx.PushUndefined() + } + return 1 + }) + vm.PutPropString(obj, "getError") +} + +// jsTracer provides an implementation of Tracer that evaluates a Javascript +// function for each VM execution step. +type jsTracer struct { + vm *duktape.Context // Javascript VM instance + env *vm.EVM // EVM instance executing the code being traced + + tracerObject int // Stack index of the tracer JavaScript object + stateObject int // Stack index of the global state to pull arguments from + + opWrapper *opWrapper // Wrapper around the VM opcode + stackWrapper *stackWrapper // Wrapper around the VM stack + memoryWrapper *memoryWrapper // Wrapper around the VM memory + contractWrapper *contractWrapper // Wrapper around the contract object + dbWrapper *dbWrapper // Wrapper around the VM environment + + pcValue *uint // Swappable pc value wrapped by a log accessor + gasValue *uint // Swappable gas value wrapped by a log accessor + costValue *uint // Swappable cost value wrapped by a log accessor + depthValue *uint // Swappable depth value wrapped by a log accessor + errorValue *string // Swappable error value wrapped by a log accessor + refundValue *uint // Swappable refund value wrapped by a log accessor + + frame *frame // Represents entry into call frame. Fields are swappable + frameResult *frameResult // Represents exit from a call frame. Fields are swappable + + ctx map[string]interface{} // Transaction context gathered throughout execution + err error // Error, if one has occurred + + 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 + traceSteps bool // When true, will invoke step() on each opcode + traceCallFrames bool // When true, will invoke enter() and exit() js funcs +} + +// New instantiates a new tracer instance. code specifies a Javascript snippet, +// which must evaluate to an expression returning an object with 'step', 'fault' +// and 'result' functions. +func newJsTracer(code string, ctx *tracers2.Context) (tracers2.Tracer, error) { + if c, ok := assetTracers[code]; ok { + code = c + } + if ctx == nil { + ctx = new(tracers2.Context) + } + tracer := &jsTracer{ + vm: duktape.New(), + ctx: make(map[string]interface{}), + opWrapper: new(opWrapper), + stackWrapper: new(stackWrapper), + memoryWrapper: new(memoryWrapper), + contractWrapper: new(contractWrapper), + dbWrapper: new(dbWrapper), + pcValue: new(uint), + gasValue: new(uint), + costValue: new(uint), + depthValue: new(uint), + refundValue: new(uint), + frame: newFrame(), + frameResult: newFrameResult(), + } + if ctx.BlockHash != (common.Hash{}) { + tracer.ctx["blockHash"] = ctx.BlockHash + + if ctx.TxHash != (common.Hash{}) { + tracer.ctx["txIndex"] = ctx.TxIndex + tracer.ctx["txHash"] = ctx.TxHash + } + } + // Set up builtins for this environment + tracer.vm.PushGlobalGoFunction("toHex", func(ctx *duktape.Context) int { + ctx.PushString(hexutil.Encode(popSlice(ctx))) + return 1 + }) + tracer.vm.PushGlobalGoFunction("toWord", func(ctx *duktape.Context) int { + var word common.Hash + if ptr, size := ctx.GetBuffer(-1); ptr != nil { + word = common.BytesToHash(makeSlice(ptr, size)) + } else { + word = common.HexToHash(ctx.GetString(-1)) + } + ctx.Pop() + copy(makeSlice(ctx.PushFixedBuffer(32), 32), word[:]) + return 1 + }) + tracer.vm.PushGlobalGoFunction("toAddress", func(ctx *duktape.Context) int { + var addr common.Address + if ptr, size := ctx.GetBuffer(-1); ptr != nil { + addr = common.BytesToAddress(makeSlice(ptr, size)) + } else { + addr = common.HexToAddress(ctx.GetString(-1)) + } + ctx.Pop() + copy(makeSlice(ctx.PushFixedBuffer(20), 20), addr[:]) + return 1 + }) + tracer.vm.PushGlobalGoFunction("toContract", func(ctx *duktape.Context) int { + var from common.Address + if ptr, size := ctx.GetBuffer(-2); ptr != nil { + from = common.BytesToAddress(makeSlice(ptr, size)) + } else { + from = common.HexToAddress(ctx.GetString(-2)) + } + nonce := uint64(ctx.GetInt(-1)) + ctx.Pop2() + + contract := crypto.CreateAddress(from, nonce) + copy(makeSlice(ctx.PushFixedBuffer(20), 20), contract[:]) + return 1 + }) + tracer.vm.PushGlobalGoFunction("toContract2", func(ctx *duktape.Context) int { + var from common.Address + if ptr, size := ctx.GetBuffer(-3); ptr != nil { + from = common.BytesToAddress(makeSlice(ptr, size)) + } else { + from = common.HexToAddress(ctx.GetString(-3)) + } + // Retrieve salt hex string from js stack + salt := common.HexToHash(ctx.GetString(-2)) + // Retrieve code slice from js stack + var code []byte + if ptr, size := ctx.GetBuffer(-1); ptr != nil { + code = common.CopyBytes(makeSlice(ptr, size)) + } else { + code = common.FromHex(ctx.GetString(-1)) + } + codeHash := crypto.Keccak256(code) + ctx.Pop3() + contract := crypto.CreateAddress2(from, salt, codeHash) + copy(makeSlice(ctx.PushFixedBuffer(20), 20), contract[:]) + return 1 + }) + tracer.vm.PushGlobalGoFunction("isPrecompiled", func(ctx *duktape.Context) int { + addr := common.BytesToAddress(popSlice(ctx)) + for _, p := range tracer.activePrecompiles { + if p == addr { + ctx.PushBoolean(true) + return 1 + } + } + ctx.PushBoolean(false) + return 1 + }) + tracer.vm.PushGlobalGoFunction("slice", func(ctx *duktape.Context) int { + start, end := ctx.GetInt(-2), ctx.GetInt(-1) + ctx.Pop2() + + blob := popSlice(ctx) + size := end - start + + if start < 0 || start > end || end > len(blob) { + // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go + // runtime goes belly up https://github.com/golang/go/issues/15639. + log.Warn("Tracer accessed out of bound memory", "available", len(blob), "offset", start, "size", size) + ctx.PushFixedBuffer(0) + return 1 + } + copy(makeSlice(ctx.PushFixedBuffer(size), uint(size)), blob[start:end]) + return 1 + }) + // Push the JavaScript tracer as object #0 onto the JSVM stack and validate it + if err := tracer.vm.PevalString("(" + code + ")"); err != nil { + log.Warn("Failed to compile tracer", "err", err) + return nil, err + } + tracer.tracerObject = 0 // yeah, nice, eval can't return the index itself + + hasStep := tracer.vm.GetPropString(tracer.tracerObject, "step") + tracer.vm.Pop() + + if !tracer.vm.GetPropString(tracer.tracerObject, "fault") { + return nil, fmt.Errorf("trace object must expose a function fault()") + } + tracer.vm.Pop() + + if !tracer.vm.GetPropString(tracer.tracerObject, "result") { + return nil, fmt.Errorf("trace object must expose a function result()") + } + tracer.vm.Pop() + + hasEnter := tracer.vm.GetPropString(tracer.tracerObject, "enter") + tracer.vm.Pop() + hasExit := tracer.vm.GetPropString(tracer.tracerObject, "exit") + tracer.vm.Pop() + if hasEnter != hasExit { + return nil, fmt.Errorf("trace object must expose either both or none of enter() and exit()") + } + tracer.traceCallFrames = hasEnter && hasExit + tracer.traceSteps = hasStep + + // Tracer is valid, inject the big int library to access large numbers + tracer.vm.EvalString(bigIntegerJS) + tracer.vm.PutGlobalString("bigInt") + + // Push the global environment state as object #1 into the JSVM stack + tracer.stateObject = tracer.vm.PushObject() + + logObject := tracer.vm.PushObject() + + tracer.opWrapper.pushObject(tracer.vm) + tracer.vm.PutPropString(logObject, "op") + + tracer.stackWrapper.pushObject(tracer.vm) + tracer.vm.PutPropString(logObject, "stack") + + tracer.memoryWrapper.pushObject(tracer.vm) + tracer.vm.PutPropString(logObject, "memory") + + tracer.contractWrapper.pushObject(tracer.vm) + tracer.vm.PutPropString(logObject, "contract") + + tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.pcValue); return 1 }) + tracer.vm.PutPropString(logObject, "getPC") + + tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.gasValue); return 1 }) + tracer.vm.PutPropString(logObject, "getGas") + + tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.costValue); return 1 }) + tracer.vm.PutPropString(logObject, "getCost") + + tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.depthValue); return 1 }) + tracer.vm.PutPropString(logObject, "getDepth") + + tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.refundValue); return 1 }) + tracer.vm.PutPropString(logObject, "getRefund") + + tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { + if tracer.errorValue != nil { + ctx.PushString(*tracer.errorValue) + } else { + ctx.PushUndefined() + } + return 1 + }) + tracer.vm.PutPropString(logObject, "getError") + + tracer.vm.PutPropString(tracer.stateObject, "log") + + tracer.frame.pushObject(tracer.vm) + tracer.vm.PutPropString(tracer.stateObject, "frame") + + tracer.frameResult.pushObject(tracer.vm) + tracer.vm.PutPropString(tracer.stateObject, "frameResult") + + tracer.dbWrapper.pushObject(tracer.vm) + tracer.vm.PutPropString(tracer.stateObject, "db") + + return tracer, nil +} + +// Stop terminates execution of the tracer at the first opportune moment. +func (jst *jsTracer) Stop(err error) { + jst.reason = err + atomic.StoreUint32(&jst.interrupt, 1) +} + +// call executes a method on a JS object, catching any errors, formatting and +// returning them as error objects. +func (jst *jsTracer) call(noret bool, method string, args ...string) (json.RawMessage, error) { + // Execute the JavaScript call and return any error + jst.vm.PushString(method) + for _, arg := range args { + jst.vm.GetPropString(jst.stateObject, arg) + } + code := jst.vm.PcallProp(jst.tracerObject, len(args)) + defer jst.vm.Pop() + + if code != 0 { + err := jst.vm.SafeToString(-1) + return nil, errors.New(err) + } + // No error occurred, extract return value and return + if noret { + return nil, nil + } + // Push a JSON marshaller onto the stack. We can't marshal from the out- + // side because duktape can crash on large nestings and we can't catch + // C++ exceptions ourselves from Go. TODO(karalabe): Yuck, why wrap?! + jst.vm.PushString("(JSON.stringify)") + jst.vm.Eval() + + jst.vm.Swap(-1, -2) + if code = jst.vm.Pcall(1); code != 0 { + err := jst.vm.SafeToString(-1) + return nil, errors.New(err) + } + return json.RawMessage(jst.vm.SafeToString(-1)), nil +} + +func wrapError(context string, err error) error { + return fmt.Errorf("%v in server-side tracer function '%v'", err, context) +} + +// CaptureStart implements the Tracer interface to initialize the tracing operation. +func (jst *jsTracer) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) { + jst.env = env + jst.ctx["type"] = "CALL" + if create { + jst.ctx["type"] = "CREATE" + } + jst.ctx["from"] = from + jst.ctx["to"] = to + jst.ctx["input"] = input + jst.ctx["gas"] = gas + jst.ctx["gasPrice"] = env.TxContext.GasPrice + jst.ctx["value"] = value + + // Initialize the context + jst.ctx["block"] = env.Context.BlockNumber.Uint64() + jst.dbWrapper.db = env.StateDB + // Update list of precompiles based on current block + rules := env.ChainConfig().Rules(env.Context.BlockNumber) + jst.activePrecompiles = vm.ActivePrecompiles(rules) + + // Compute intrinsic gas + isHomestead := env.ChainConfig().IsHomestead(env.Context.BlockNumber) + isIstanbul := env.ChainConfig().IsIstanbul(env.Context.BlockNumber) + intrinsicGas, err := core.IntrinsicGas(input, nil, jst.ctx["type"] == "CREATE", isHomestead, isIstanbul) + if err != nil { + return + } + jst.ctx["intrinsicGas"] = intrinsicGas +} + +// CaptureState implements the Tracer interface to trace a single step of VM execution. +func (jst *jsTracer) CaptureState(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) { + if !jst.traceSteps { + 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 + jst.env.Cancel() + return + } + jst.opWrapper.op = op + jst.stackWrapper.stack = scope.Stack + jst.memoryWrapper.memory = scope.Memory + jst.contractWrapper.contract = scope.Contract + + *jst.pcValue = uint(pc) + *jst.gasValue = uint(gas) + *jst.costValue = uint(cost) + *jst.depthValue = uint(depth) + *jst.refundValue = uint(jst.env.StateDB.GetRefund()) + + jst.errorValue = nil + if err != nil { + jst.errorValue = new(string) + *jst.errorValue = err.Error() + } + + if _, err := jst.call(true, "step", "log", "db"); err != nil { + jst.err = wrapError("step", err) + } +} + +// CaptureFault implements the Tracer interface to trace an execution fault +func (jst *jsTracer) CaptureFault(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, depth int, err error) { + if jst.err != nil { + return + } + // Apart from the error, everything matches the previous invocation + jst.errorValue = new(string) + *jst.errorValue = err.Error() + + if _, err := jst.call(true, "fault", "log", "db"); err != nil { + jst.err = wrapError("fault", err) + } +} + +// CaptureEnd is called after the call finishes to finalize the tracing. +func (jst *jsTracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) { + jst.ctx["output"] = output + jst.ctx["time"] = t.String() + jst.ctx["gasUsed"] = gasUsed + + if err != nil { + jst.ctx["error"] = err.Error() + } +} + +// CaptureEnter is called when EVM enters a new scope (via call, create or selfdestruct). +func (jst *jsTracer) CaptureEnter(typ vm.OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) { + 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 + } + + *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()) + } + + if _, err := jst.call(true, "enter", "frame"); err != nil { + jst.err = wrapError("enter", err) + } +} + +// CaptureExit is called when EVM exits a scope, even if the scope didn't +// execute any code. +func (jst *jsTracer) CaptureExit(output []byte, gasUsed uint64, err error) { + if !jst.traceCallFrames { + return + } + // If tracing was interrupted, set the error and stop + if atomic.LoadUint32(&jst.interrupt) > 0 { + jst.err = jst.reason + return + } + + 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() + } + + if _, err := jst.call(true, "exit", "frameResult"); err != nil { + jst.err = wrapError("exit", err) + } +} + +// GetResult calls the Javascript 'result' function and returns its value, or any accumulated error +func (jst *jsTracer) GetResult() (json.RawMessage, error) { + // Transform the context into a JavaScript object and inject into the state + obj := jst.vm.PushObject() + + for key, val := range jst.ctx { + jst.addToObj(obj, key, val) + } + jst.vm.PutPropString(jst.stateObject, "ctx") + + // Finalize the trace and return the results + result, err := jst.call(false, "result", "ctx", "db") + if err != nil { + jst.err = wrapError("result", err) + } + // Clean up the JavaScript environment + jst.vm.DestroyHeap() + jst.vm.Destroy() + + return result, jst.err +} + +// addToObj pushes a field to a JS object. +func (jst *jsTracer) 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/js/tracer_test.go similarity index 51% rename from eth/tracers/tracer_test.go rename to eth/tracers/js/tracer_test.go index 7cda2e533064b..2253ae597cf3a 100644 --- a/eth/tracers/tracer_test.go +++ b/eth/tracers/js/tracer_test.go @@ -14,7 +14,7 @@ // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see . -package tracers +package js import ( "encoding/json" @@ -26,6 +26,7 @@ import ( "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/vm" + "github.com/ethereum/go-ethereum/eth/tracers" "github.com/ethereum/go-ethereum/params" ) @@ -59,13 +60,13 @@ func testCtx() *vmContext { return &vmContext{blockCtx: vm.BlockContext{BlockNumber: big.NewInt(1)}, txCtx: vm.TxContext{GasPrice: big.NewInt(100000)}} } -func runTrace(tracer *Tracer, vmctx *vmContext) (json.RawMessage, error) { - env := vm.NewEVM(vmctx.blockCtx, vmctx.txCtx, &dummyStatedb{}, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer}) +func runTrace(tracer tracers.Tracer, vmctx *vmContext, chaincfg *params.ChainConfig) (json.RawMessage, error) { var ( + env = vm.NewEVM(vmctx.blockCtx, vmctx.txCtx, &dummyStatedb{}, chaincfg, vm.Config{Debug: true, Tracer: tracer}) startGas uint64 = 10000 value = big.NewInt(0) + contract = vm.NewContract(account{}, account{}, value, startGas) ) - contract := vm.NewContract(account{}, account{}, value, startGas) contract.Code = []byte{byte(vm.PUSH1), 0x1, byte(vm.PUSH1), 0x1, 0x0} tracer.CaptureStart(env, contract.Caller(), contract.Address(), false, []byte{}, startGas, value) @@ -78,22 +79,22 @@ func runTrace(tracer *Tracer, vmctx *vmContext) (json.RawMessage, error) { } func TestTracer(t *testing.T) { - execTracer := func(code string) []byte { + execTracer := func(code string) ([]byte, string) { t.Helper() - ctx := &vmContext{blockCtx: vm.BlockContext{BlockNumber: big.NewInt(1)}, txCtx: vm.TxContext{GasPrice: big.NewInt(100000)}} - tracer, err := New(code, ctx.txCtx) + tracer, err := newJsTracer(code, nil) if err != nil { t.Fatal(err) } - ret, err := runTrace(tracer, ctx) + ret, err := runTrace(tracer, testCtx(), params.TestChainConfig) if err != nil { - t.Fatal(err) + return nil, err.Error() // Stringify to allow comparison without nil checks } - return ret + return ret, "" } for i, tt := range []struct { code string want string + fail string }{ { // tests that we don't panic on bad arguments to memory access code: "{depths: [], step: function(log) { this.depths.push(log.memory.slice(-1,-2)); }, fault: function() {}, result: function() { return this.depths; }}", @@ -116,49 +117,47 @@ func TestTracer(t *testing.T) { }, { // tests intrinsic gas code: "{depths: [], step: function() {}, fault: function() {}, result: function(ctx) { return ctx.gasPrice+'.'+ctx.gasUsed+'.'+ctx.intrinsicGas; }}", want: `"100000.6.21000"`, + }, { // tests too deep object / serialization crash + code: "{step: function() {}, fault: function() {}, result: function() { var o={}; var x=o; for (var i=0; i<1000; i++){ o.foo={}; o=o.foo; } return x; }}", + fail: "RangeError: json encode recursion limit in server-side tracer function 'result'", }, } { - if have := execTracer(tt.code); tt.want != string(have) { - t.Errorf("testcase %d: expected return value to be %s got %s\n\tcode: %v", i, tt.want, string(have), tt.code) + if have, err := execTracer(tt.code); tt.want != string(have) || tt.fail != err { + t.Errorf("testcase %d: expected return value to be '%s' got '%s', error to be '%s' got '%s'\n\tcode: %v", i, tt.want, string(have), tt.fail, err, tt.code) } } } func TestHalt(t *testing.T) { t.Skip("duktape doesn't support abortion") - timeout := errors.New("stahp") - vmctx := testCtx() - tracer, err := New("{step: function() { while(1); }, result: function() { return null; }}", vmctx.txCtx) + tracer, err := newJsTracer("{step: function() { while(1); }, result: function() { return null; }, fault: function(){}}", nil) if err != nil { t.Fatal(err) } - go func() { time.Sleep(1 * time.Second) tracer.Stop(timeout) }() - - if _, err = runTrace(tracer, vmctx); err.Error() != "stahp in server-side tracer function 'step'" { + if _, err = runTrace(tracer, testCtx(), params.TestChainConfig); err.Error() != "stahp in server-side tracer function 'step'" { t.Errorf("Expected timeout error, got %v", err) } } func TestHaltBetweenSteps(t *testing.T) { - vmctx := testCtx() - tracer, err := New("{step: function() {}, fault: function() {}, result: function() { return null; }}", vmctx.txCtx) + tracer, err := newJsTracer("{step: function() {}, fault: function() {}, result: function() { return null; }}", nil) if err != nil { t.Fatal(err) } - env := vm.NewEVM(vm.BlockContext{BlockNumber: big.NewInt(1)}, vm.TxContext{}, &dummyStatedb{}, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer}) + env := vm.NewEVM(vm.BlockContext{BlockNumber: big.NewInt(1)}, vm.TxContext{GasPrice: big.NewInt(1)}, &dummyStatedb{}, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer}) scope := &vm.ScopeContext{ Contract: vm.NewContract(&account{}, &account{}, big.NewInt(0), 0), } - - tracer.CaptureState(env, 0, 0, 0, 0, scope, nil, 0, nil) + tracer.CaptureStart(env, common.Address{}, common.Address{}, false, []byte{}, 0, big.NewInt(0)) + tracer.CaptureState(0, 0, 0, 0, scope, nil, 0, nil) timeout := errors.New("stahp") tracer.Stop(timeout) - tracer.CaptureState(env, 0, 0, 0, 0, scope, nil, 0, nil) + tracer.CaptureState(0, 0, 0, 0, scope, nil, 0, nil) if _, err := tracer.GetResult(); err.Error() != timeout.Error() { t.Errorf("Expected timeout error, got %v", err) @@ -168,22 +167,16 @@ func TestHaltBetweenSteps(t *testing.T) { // TestNoStepExec tests a regular value transfer (no exec), and accessing the statedb // in 'result' func TestNoStepExec(t *testing.T) { - runEmptyTrace := func(tracer *Tracer, vmctx *vmContext) (json.RawMessage, error) { - env := vm.NewEVM(vmctx.blockCtx, vmctx.txCtx, &dummyStatedb{}, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer}) - startGas := uint64(10000) - contract := vm.NewContract(account{}, account{}, big.NewInt(0), startGas) - tracer.CaptureStart(env, contract.Caller(), contract.Address(), false, []byte{}, startGas, big.NewInt(0)) - tracer.CaptureEnd(nil, startGas-contract.Gas, 1, nil) - return tracer.GetResult() - } execTracer := func(code string) []byte { t.Helper() - ctx := &vmContext{blockCtx: vm.BlockContext{BlockNumber: big.NewInt(1)}, txCtx: vm.TxContext{GasPrice: big.NewInt(100000)}} - tracer, err := New(code, ctx.txCtx) + tracer, err := newJsTracer(code, nil) if err != nil { t.Fatal(err) } - ret, err := runEmptyTrace(tracer, ctx) + env := vm.NewEVM(vm.BlockContext{BlockNumber: big.NewInt(1)}, vm.TxContext{GasPrice: big.NewInt(100)}, &dummyStatedb{}, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer}) + tracer.CaptureStart(env, common.Address{}, common.Address{}, false, []byte{}, 1000, big.NewInt(0)) + tracer.CaptureEnd(nil, 0, 1, nil) + ret, err := tracer.GetResult() if err != nil { t.Fatal(err) } @@ -203,3 +196,63 @@ func TestNoStepExec(t *testing.T) { } } } + +func TestIsPrecompile(t *testing.T) { + chaincfg := ¶ms.ChainConfig{ChainID: big.NewInt(1), HomesteadBlock: big.NewInt(0), DAOForkBlock: nil, DAOForkSupport: false, EIP150Block: big.NewInt(0), EIP150Hash: common.Hash{}, EIP155Block: big.NewInt(0), EIP158Block: big.NewInt(0), ByzantiumBlock: big.NewInt(100), ConstantinopleBlock: big.NewInt(0), PetersburgBlock: big.NewInt(0), IstanbulBlock: big.NewInt(200), MuirGlacierBlock: big.NewInt(0), BerlinBlock: big.NewInt(300), CatalystBlock: nil, Ethash: new(params.EthashConfig), Clique: nil} + chaincfg.ByzantiumBlock = big.NewInt(100) + chaincfg.IstanbulBlock = big.NewInt(200) + chaincfg.BerlinBlock = big.NewInt(300) + txCtx := vm.TxContext{GasPrice: big.NewInt(100000)} + tracer, err := newJsTracer("{addr: toAddress('0000000000000000000000000000000000000009'), res: null, step: function() { this.res = isPrecompiled(this.addr); }, fault: function() {}, result: function() { return this.res; }}", nil) + if err != nil { + t.Fatal(err) + } + + blockCtx := vm.BlockContext{BlockNumber: big.NewInt(150)} + res, err := runTrace(tracer, &vmContext{blockCtx, txCtx}, chaincfg) + if err != nil { + t.Error(err) + } + if string(res) != "false" { + t.Errorf("Tracer should not consider blake2f as precompile in byzantium") + } + + tracer, _ = newJsTracer("{addr: toAddress('0000000000000000000000000000000000000009'), res: null, step: function() { this.res = isPrecompiled(this.addr); }, fault: function() {}, result: function() { return this.res; }}", nil) + blockCtx = vm.BlockContext{BlockNumber: big.NewInt(250)} + res, err = runTrace(tracer, &vmContext{blockCtx, txCtx}, chaincfg) + if err != nil { + t.Error(err) + } + if string(res) != "true" { + 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 := newJsTracer("{step: function() {}, fault: function() {}, result: function() { return null; }, enter: function() {}}", new(tracers.Context)); err == nil { + t.Fatal("tracer creation should've failed without exit() definition") + } + if _, err := newJsTracer("{step: function() {}, fault: function() {}, result: function() { return null; }, enter: function() {}, exit: function() {}}", new(tracers.Context)); err != nil { + t.Fatal(err) + } + // test that the enter and exit method are correctly invoked and the values passed + tracer, err := newJsTracer("{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(tracers.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/native/call.go b/eth/tracers/native/call.go new file mode 100644 index 0000000000000..16ea75aa4a1cb --- /dev/null +++ b/eth/tracers/native/call.go @@ -0,0 +1,182 @@ +// 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 . + +package native + +import ( + "encoding/json" + "errors" + "math/big" + "strconv" + "strings" + "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("callTracer", newCallTracer) +} + +type callFrame struct { + Type string `json:"type"` + From string `json:"from"` + To string `json:"to,omitempty"` + Value string `json:"value,omitempty"` + Gas string `json:"gas"` + GasUsed string `json:"gasUsed"` + Input string `json:"input"` + Output string `json:"output,omitempty"` + Error string `json:"error,omitempty"` + Calls []callFrame `json:"calls,omitempty"` +} + +type callTracer struct { + env *vm.EVM + callstack []callFrame + interrupt uint32 // Atomic flag to signal execution interruption + reason error // Textual reason for the interruption +} + +// newCallTracer returns a native go tracer which tracks +// call frames of a tx, and implements vm.EVMLogger. +func newCallTracer() tracers.Tracer { + // First callframe contains tx context info + // and is populated on start and end. + t := &callTracer{callstack: make([]callFrame, 1)} + return t +} + +// CaptureStart implements the EVMLogger interface to initialize the tracing operation. +func (t *callTracer) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) { + t.env = env + t.callstack[0] = callFrame{ + Type: "CALL", + From: addrToHex(from), + To: addrToHex(to), + Input: bytesToHex(input), + Gas: uintToHex(gas), + Value: bigToHex(value), + } + if create { + t.callstack[0].Type = "CREATE" + } +} + +// CaptureEnd is called after the call finishes to finalize the tracing. +func (t *callTracer) CaptureEnd(output []byte, gasUsed uint64, _ time.Duration, err error) { + t.callstack[0].GasUsed = uintToHex(gasUsed) + if err != nil { + t.callstack[0].Error = err.Error() + if err.Error() == "execution reverted" && len(output) > 0 { + t.callstack[0].Output = bytesToHex(output) + } + } else { + t.callstack[0].Output = bytesToHex(output) + } +} + +// CaptureState implements the EVMLogger interface to trace a single step of VM execution. +func (t *callTracer) CaptureState(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) { +} + +// CaptureFault implements the EVMLogger interface to trace an execution fault. +func (t *callTracer) CaptureFault(pc uint64, op vm.OpCode, gas, cost uint64, _ *vm.ScopeContext, depth int, err error) { +} + +// CaptureEnter is called when EVM enters a new scope (via call, create or selfdestruct). +func (t *callTracer) CaptureEnter(typ 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 + } + + call := callFrame{ + Type: typ.String(), + From: addrToHex(from), + To: addrToHex(to), + Input: bytesToHex(input), + Gas: uintToHex(gas), + Value: bigToHex(value), + } + t.callstack = append(t.callstack, call) +} + +// CaptureExit is called when EVM exits a scope, even if the scope didn't +// execute any code. +func (t *callTracer) CaptureExit(output []byte, gasUsed uint64, err error) { + size := len(t.callstack) + if size <= 1 { + return + } + // pop call + call := t.callstack[size-1] + t.callstack = t.callstack[:size-1] + size -= 1 + + call.GasUsed = uintToHex(gasUsed) + if err == nil { + call.Output = bytesToHex(output) + } else { + call.Error = err.Error() + if call.Type == "CREATE" || call.Type == "CREATE2" { + call.To = "" + } + } + t.callstack[size-1].Calls = append(t.callstack[size-1].Calls, call) +} + +// GetResult returns the json-encoded nested list of call traces, and any +// error arising from the encoding or forceful termination (via `Stop`). +func (t *callTracer) GetResult() (json.RawMessage, error) { + if len(t.callstack) != 1 { + return nil, errors.New("incorrect number of top-level calls") + } + res, err := json.Marshal(t.callstack[0]) + if err != nil { + return nil, err + } + return json.RawMessage(res), t.reason +} + +// Stop terminates execution of the tracer at the first opportune moment. +func (t *callTracer) Stop(err error) { + t.reason = err + atomic.StoreUint32(&t.interrupt, 1) +} + +func bytesToHex(s []byte) string { + return "0x" + common.Bytes2Hex(s) +} + +func bigToHex(n *big.Int) string { + if n == nil { + return "" + } + return "0x" + n.Text(16) +} + +func uintToHex(n uint64) string { + return "0x" + strconv.FormatUint(n, 16) +} + +func addrToHex(a common.Address) string { + return strings.ToLower(a.Hex()) +} diff --git a/eth/tracers/native/noop.go b/eth/tracers/native/noop.go new file mode 100644 index 0000000000000..ee110ef7df908 --- /dev/null +++ b/eth/tracers/native/noop.go @@ -0,0 +1,74 @@ +// 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 . + +package native + +import ( + "encoding/json" + "math/big" + "time" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core/vm" + "github.com/ethereum/go-ethereum/eth/tracers" +) + +func init() { + register("noopTracerNative", newNoopTracer) +} + +// noopTracer is a go implementation of the Tracer interface which +// performs no action. It's mostly useful for testing purposes. +type noopTracer struct{} + +// newNoopTracer returns a new noop tracer. +func newNoopTracer() tracers.Tracer { + return &noopTracer{} +} + +// CaptureStart implements the EVMLogger interface to initialize the tracing operation. +func (t *noopTracer) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) { +} + +// CaptureEnd is called after the call finishes to finalize the tracing. +func (t *noopTracer) CaptureEnd(output []byte, gasUsed uint64, _ time.Duration, err error) { +} + +// CaptureState implements the EVMLogger interface to trace a single step of VM execution. +func (t *noopTracer) CaptureState(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) { +} + +// CaptureFault implements the EVMLogger interface to trace an execution fault. +func (t *noopTracer) CaptureFault(pc uint64, op vm.OpCode, gas, cost uint64, _ *vm.ScopeContext, depth int, err error) { +} + +// CaptureEnter is called when EVM enters a new scope (via call, create or selfdestruct). +func (t *noopTracer) CaptureEnter(typ vm.OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) { +} + +// CaptureExit is called when EVM exits a scope, even if the scope didn't +// execute any code. +func (t *noopTracer) CaptureExit(output []byte, gasUsed uint64, err error) { +} + +// GetResult returns an empty json object. +func (t *noopTracer) GetResult() (json.RawMessage, error) { + return json.RawMessage(`{}`), nil +} + +// Stop terminates execution of the tracer at the first opportune moment. +func (t *noopTracer) Stop(err error) { +} diff --git a/eth/tracers/native/tracer.go b/eth/tracers/native/tracer.go new file mode 100644 index 0000000000000..3158654f33fc4 --- /dev/null +++ b/eth/tracers/native/tracer.go @@ -0,0 +1,79 @@ +// 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 . + +/* +Package native is a collection of tracers written in go. + +In order to add a native tracer and have it compiled into the binary, a new +file needs to be added to this folder, containing an implementation of the +`eth.tracers.Tracer` interface. + +Aside from implementing the tracer, it also needs to register itself, using the +`register` method -- and this needs to be done in the package initialization. + +Example: + +```golang +func init() { + register("noopTracerNative", newNoopTracer) +} +``` +*/ +package native + +import ( + "errors" + + "github.com/ethereum/go-ethereum/eth/tracers" +) + +// init registers itself this packages as a lookup for tracers. +func init() { + tracers.RegisterLookup(false, lookup) +} + +/* +ctors is a map of package-local tracer constructors. + +We cannot be certain about the order of init-functions within a package, +The go spec (https://golang.org/ref/spec#Package_initialization) says + +> To ensure reproducible initialization behavior, build systems +> are encouraged to present multiple files belonging to the same +> package in lexical file name order to a compiler. + +Hence, we cannot make the map in init, but must make it upon first use. +*/ +var ctors map[string]func() tracers.Tracer + +// register is used by native tracers to register their presence. +func register(name string, ctor func() tracers.Tracer) { + if ctors == nil { + ctors = make(map[string]func() tracers.Tracer) + } + ctors[name] = ctor +} + +// lookup returns a tracer, if one can be matched to the given name. +func lookup(name string, ctx *tracers.Context) (tracers.Tracer, error) { + if ctors == nil { + ctors = make(map[string]func() tracers.Tracer) + } + if ctor, ok := ctors[name]; ok { + return ctor(), nil + } + return nil, errors.New("no tracer found") +} diff --git a/eth/tracers/tracers.go b/eth/tracers/tracers.go index 4e1ef23ad2f81..e7073e7d2edf5 100644 --- a/eth/tracers/tracers.go +++ b/eth/tracers/tracers.go @@ -14,40 +14,59 @@ // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see . -// Package tracers is a collection of JavaScript transaction tracers. +// Package tracers is a manager for transaction tracing engines. package tracers import ( - "strings" - "unicode" + "encoding/json" + "errors" - "github.com/ethereum/go-ethereum/eth/tracers/internal/tracers" + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core/vm" ) -// all contains all the built in JavaScript tracers by name. -var all = make(map[string]string) +// Context contains some contextual infos for a transaction execution that is not +// available from within the EVM object. +type Context struct { + BlockHash common.Hash // Hash of the block the tx is contained within (zero if dangling tx or call) + TxIndex int // Index of the transaction within a block (zero if dangling tx or call) + TxHash common.Hash // Hash of the transaction being traced (zero if dangling call) +} -// camel converts a snake cased input string into a camel cased output. -func camel(str string) string { - pieces := strings.Split(str, "_") - for i := 1; i < len(pieces); i++ { - pieces[i] = string(unicode.ToUpper(rune(pieces[i][0]))) + pieces[i][1:] - } - return strings.Join(pieces, "") +// Tracer interface extends vm.EVMLogger and additionally +// allows collecting the tracing result. +type Tracer interface { + vm.EVMLogger + GetResult() (json.RawMessage, error) + // Stop terminates execution of the tracer at the first opportune moment. + Stop(err error) } -// init retrieves the JavaScript transaction tracers included in go-ethereum. -func init() { - for _, file := range tracers.AssetNames() { - name := camel(strings.TrimSuffix(file, ".js")) - all[name] = string(tracers.MustAsset(file)) +type lookupFunc func(string, *Context) (Tracer, error) + +var ( + lookups []lookupFunc +) + +// RegisterLookup registers a method as a lookup for tracers, meaning that +// users can invoke a named tracer through that lookup. If 'wildcard' is true, +// then the lookup will be placed last. This is typically meant for interpreted +// engines (js) which can evaluate dynamic user-supplied code. +func RegisterLookup(wildcard bool, lookup lookupFunc) { + if wildcard { + lookups = append(lookups, lookup) + } else { + lookups = append([]lookupFunc{lookup}, lookups...) } } -// tracer retrieves a specific JavaScript tracer by name. -func tracer(name string) (string, bool) { - if tracer, ok := all[name]; ok { - return tracer, true +// New returns a new instance of a tracer, by iterating through the +// registered lookups. +func New(code string, ctx *Context) (Tracer, error) { + for _, lookup := range lookups { + if tracer, err := lookup(code, ctx); err == nil { + return tracer, nil + } } - return "", false + return nil, errors.New("tracer not found") } diff --git a/eth/tracers/tracers_test.go b/eth/tracers/tracers_test.go index 0bc4cd81e6202..a3f5fc361d9be 100644 --- a/eth/tracers/tracers_test.go +++ b/eth/tracers/tracers_test.go @@ -17,79 +17,20 @@ package tracers import ( - "crypto/ecdsa" - "crypto/rand" - "encoding/json" - "io/ioutil" "math/big" - "path/filepath" - "reflect" - "strings" "testing" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/common/math" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/rawdb" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/params" - "github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/tests" ) -// To generate a new callTracer test, copy paste the makeTest method below into -// a Geth console and call it with a transaction hash you which to export. - -/* -// makeTest generates a callTracer test by running a prestate reassembled and a -// call trace run, assembling all the gathered information into a test case. -var makeTest = function(tx, rewind) { - // Generate the genesis block from the block, transaction and prestate data - var block = eth.getBlock(eth.getTransaction(tx).blockHash); - var genesis = eth.getBlock(block.parentHash); - - delete genesis.gasUsed; - delete genesis.logsBloom; - delete genesis.parentHash; - delete genesis.receiptsRoot; - delete genesis.sha3Uncles; - delete genesis.size; - delete genesis.transactions; - delete genesis.transactionsRoot; - delete genesis.uncles; - - genesis.gasLimit = genesis.gasLimit.toString(); - genesis.number = genesis.number.toString(); - genesis.timestamp = genesis.timestamp.toString(); - - genesis.alloc = debug.traceTransaction(tx, {tracer: "prestateTracer", rewind: rewind}); - for (var key in genesis.alloc) { - genesis.alloc[key].nonce = genesis.alloc[key].nonce.toString(); - } - genesis.config = admin.nodeInfo.protocols.eth.config; - - // Generate the call trace and produce the test input - var result = debug.traceTransaction(tx, {tracer: "callTracer", rewind: rewind}); - delete result.time; - - console.log(JSON.stringify({ - genesis: genesis, - context: { - number: block.number.toString(), - difficulty: block.difficulty, - timestamp: block.timestamp.toString(), - gasLimit: block.gasLimit.toString(), - miner: block.miner, - }, - input: eth.getRawTransaction(tx), - result: result, - }, null, 2)); -} -*/ - // callTrace is the result of a callTracer run. type callTrace struct { Type string `json:"type"` @@ -104,203 +45,6 @@ type callTrace struct { Calls []callTrace `json:"calls,omitempty"` } -type callContext struct { - Number math.HexOrDecimal64 `json:"number"` - Difficulty *math.HexOrDecimal256 `json:"difficulty"` - Time math.HexOrDecimal64 `json:"timestamp"` - GasLimit math.HexOrDecimal64 `json:"gasLimit"` - Miner common.Address `json:"miner"` -} - -// callTracerTest defines a single test to check the call tracer against. -type callTracerTest struct { - Genesis *core.Genesis `json:"genesis"` - Context *callContext `json:"context"` - Input string `json:"input"` - Result *callTrace `json:"result"` -} - -func TestPrestateTracerCreate2(t *testing.T) { - unsignedTx := types.NewTransaction(1, common.HexToAddress("0x00000000000000000000000000000000deadbeef"), - new(big.Int), 5000000, big.NewInt(1), []byte{}) - - privateKeyECDSA, err := ecdsa.GenerateKey(crypto.S256(), rand.Reader) - if err != nil { - t.Fatalf("err %v", err) - } - signer := types.NewEIP155Signer(big.NewInt(1)) - tx, err := types.SignTx(unsignedTx, signer, privateKeyECDSA) - if err != nil { - t.Fatalf("err %v", err) - } - /** - This comes from one of the test-vectors on the Skinny Create2 - EIP - - address 0x00000000000000000000000000000000deadbeef - salt 0x00000000000000000000000000000000000000000000000000000000cafebabe - init_code 0xdeadbeef - gas (assuming no mem expansion): 32006 - result: 0x60f3f640a8508fC6a86d45DF051962668E1e8AC7 - */ - origin, _ := signer.Sender(tx) - txContext := vm.TxContext{ - Origin: origin, - GasPrice: big.NewInt(1), - } - context := vm.BlockContext{ - CanTransfer: core.CanTransfer, - Transfer: core.Transfer, - Coinbase: common.Address{}, - BlockNumber: new(big.Int).SetUint64(8000000), - Time: new(big.Int).SetUint64(5), - Difficulty: big.NewInt(0x30000), - GasLimit: uint64(6000000), - } - alloc := core.GenesisAlloc{} - - // The code pushes 'deadbeef' into memory, then the other params, and calls CREATE2, then returns - // the address - alloc[common.HexToAddress("0x00000000000000000000000000000000deadbeef")] = core.GenesisAccount{ - Nonce: 1, - Code: hexutil.MustDecode("0x63deadbeef60005263cafebabe6004601c6000F560005260206000F3"), - Balance: big.NewInt(1), - } - alloc[origin] = core.GenesisAccount{ - Nonce: 1, - Code: []byte{}, - Balance: big.NewInt(500000000000000), - } - _, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), alloc, false) - - // Create the tracer, the EVM environment and run it - tracer, err := New("prestateTracer", txContext) - if err != nil { - t.Fatalf("failed to create call tracer: %v", err) - } - evm := vm.NewEVM(context, txContext, statedb, params.MainnetChainConfig, vm.Config{Debug: true, Tracer: tracer}) - - msg, err := tx.AsMessage(signer) - if err != nil { - t.Fatalf("failed to prepare transaction for tracing: %v", err) - } - st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas())) - if _, err = st.TransitionDb(); err != nil { - t.Fatalf("failed to execute transaction: %v", err) - } - // Retrieve the trace result and compare against the etalon - res, err := tracer.GetResult() - if err != nil { - t.Fatalf("failed to retrieve trace result: %v", err) - } - ret := make(map[string]interface{}) - if err := json.Unmarshal(res, &ret); err != nil { - t.Fatalf("failed to unmarshal trace result: %v", err) - } - if _, has := ret["0x60f3f640a8508fc6a86d45df051962668e1e8ac7"]; !has { - t.Fatalf("Expected 0x60f3f640a8508fc6a86d45df051962668e1e8ac7 in result") - } -} - -// 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") - if err != nil { - t.Fatalf("failed to retrieve tracer test suite: %v", err) - } - for _, file := range files { - if !strings.HasPrefix(file.Name(), "call_tracer_") { - continue - } - file := file // capture range variable - t.Run(camel(strings.TrimSuffix(strings.TrimPrefix(file.Name(), "call_tracer_"), ".json")), func(t *testing.T) { - t.Parallel() - - // Call tracer test found, read if from disk - blob, err := ioutil.ReadFile(filepath.Join("testdata", file.Name())) - if err != nil { - t.Fatalf("failed to read testcase: %v", err) - } - test := new(callTracerTest) - if err := json.Unmarshal(blob, test); err != nil { - t.Fatalf("failed to parse testcase: %v", err) - } - // Configure a blockchain with the given prestate - tx := new(types.Transaction) - if err := rlp.DecodeBytes(common.FromHex(test.Input), tx); err != nil { - t.Fatalf("failed to parse testcase input: %v", err) - } - signer := types.MakeSigner(test.Genesis.Config, new(big.Int).SetUint64(uint64(test.Context.Number))) - 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("callTracer", txContext) - if err != nil { - t.Fatalf("failed to create call tracer: %v", err) - } - evm := vm.NewEVM(context, txContext, statedb, test.Genesis.Config, vm.Config{Debug: true, Tracer: tracer}) - - msg, err := tx.AsMessage(signer) - if err != nil { - t.Fatalf("failed to prepare transaction for tracing: %v", err) - } - st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas())) - if _, err = st.TransitionDb(); err != nil { - t.Fatalf("failed to execute transaction: %v", err) - } - // Retrieve the trace result and compare against the etalon - res, err := tracer.GetResult() - if err != nil { - t.Fatalf("failed to retrieve trace result: %v", err) - } - ret := new(callTrace) - if err := json.Unmarshal(res, ret); err != nil { - t.Fatalf("failed to unmarshal trace result: %v", err) - } - - if !jsonEqual(ret, test.Result) { - // uncomment this for easier debugging - //have, _ := json.MarshalIndent(ret, "", " ") - //want, _ := json.MarshalIndent(test.Result, "", " ") - //t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", string(have), string(want)) - t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", ret, test.Result) - } - }) - } -} - -// jsonEqual is similar to reflect.DeepEqual, but does a 'bounce' via json prior to -// comparison -func jsonEqual(x, y interface{}) bool { - xTrace := new(callTrace) - yTrace := new(callTrace) - if xj, err := json.Marshal(x); err == nil { - json.Unmarshal(xj, xTrace) - } else { - return false - } - if yj, err := json.Marshal(y); err == nil { - json.Unmarshal(yj, yTrace) - } else { - return false - } - return reflect.DeepEqual(xTrace, yTrace) -} - func BenchmarkTransactionTrace(b *testing.B) { key, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") from := crypto.PubkeyToAddress(key.PublicKey) @@ -353,8 +97,8 @@ func BenchmarkTransactionTrace(b *testing.B) { tracer := vm.NewStructLogger(&vm.LogConfig{ Debug: false, //DisableStorage: true, - //DisableMemory: true, - //DisableReturnData: true, + //EnableMemory: false, + //EnableReturnData: false, }) evm := vm.NewEVM(context, txContext, statedb, params.AllEthashProtocolChanges, vm.Config{Debug: true, Tracer: tracer}) msg, err := tx.AsMessage(signer) diff --git a/internal/web3ext/web3ext.go b/internal/web3ext/web3ext.go index 1934412c90140..2975720b8ac41 100644 --- a/internal/web3ext/web3ext.go +++ b/internal/web3ext/web3ext.go @@ -419,6 +419,12 @@ web3._extend({ params: 2, inputFormatter: [null, null] }), + new web3._extend.Method({ + name: 'intermediateRoots', + call: 'debug_intermediateRoots', + params: 2, + inputFormatter: [null, null] + }), new web3._extend.Method({ name: 'standardTraceBlockToFile', call: 'debug_standardTraceBlockToFile', diff --git a/les/api_backend.go b/les/api_backend.go index c8eca2d90597a..243a0ac811b20 100644 --- a/les/api_backend.go +++ b/les/api_backend.go @@ -305,7 +305,7 @@ func (b *LesApiBackend) CurrentHeader() *types.Header { return b.eth.blockchain.CurrentHeader() } -func (b *LesApiBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, error) { +func (b *LesApiBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool, preferDisk bool) (*state.StateDB, error) { return b.eth.stateAtBlock(ctx, block, reexec) } diff --git a/tests/state_test.go b/tests/state_test.go index c1d9f6a0dc93f..bb80a162aa388 100644 --- a/tests/state_test.go +++ b/tests/state_test.go @@ -105,7 +105,7 @@ func withTrace(t *testing.T, gasLimit uint64, test func(vm.Config) error) { } buf := new(bytes.Buffer) w := bufio.NewWriter(buf) - tracer := vm.NewJSONLogger(&vm.LogConfig{DisableMemory: true}, w) + tracer := vm.NewJSONLogger(&vm.LogConfig{}, w) config.Debug, config.Tracer = true, tracer err2 := test(config) if !errors.Is(err, err2) {