318 lines
6.9 KiB
Go
318 lines
6.9 KiB
Go
package main
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import (
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"fmt"
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"github.com/ethereum/eth-go/ethchain"
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"github.com/ethereum/eth-go/ethutil"
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"github.com/go-qml/qml"
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"math/big"
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"strconv"
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"strings"
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)
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type DebuggerWindow struct {
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win *qml.Window
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engine *qml.Engine
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lib *UiLib
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vm *ethchain.Vm
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Db *Debugger
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}
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func NewDebuggerWindow(lib *UiLib) *DebuggerWindow {
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engine := qml.NewEngine()
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component, err := engine.LoadFile(lib.AssetPath("debugger/debugger.qml"))
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if err != nil {
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fmt.Println(err)
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return nil
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}
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win := component.CreateWindow(nil)
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w := &DebuggerWindow{engine: engine, win: win, lib: lib, vm: ðchain.Vm{}}
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w.Db = NewDebugger(w)
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return w
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}
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func (self *DebuggerWindow) Show() {
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context := self.engine.Context()
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context.SetVar("dbg", self)
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go func() {
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self.win.Show()
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self.win.Wait()
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}()
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}
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func (self *DebuggerWindow) SetCode(code string) {
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self.win.Set("codeText", code)
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}
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func (self *DebuggerWindow) SetData(data string) {
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self.win.Set("dataText", data)
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}
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func (self *DebuggerWindow) SetAsm(data []byte) {
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self.win.Root().Call("clearAsm")
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dis := ethchain.Disassemble(data)
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for _, str := range dis {
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self.win.Root().Call("setAsm", str)
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}
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}
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func (self *DebuggerWindow) Compile(code string) {
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var err error
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script := ethutil.StringToByteFunc(code, func(s string) (ret []byte) {
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ret, err = ethutil.Compile(s, true)
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return
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})
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if err == nil {
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self.SetAsm(script)
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}
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}
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func (self *DebuggerWindow) ClearLog() {
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self.win.Root().Call("clearLog")
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}
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func (self *DebuggerWindow) Debug(valueStr, gasStr, gasPriceStr, scriptStr, dataStr string) {
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if !self.Db.done {
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self.Db.Q <- true
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}
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defer func() {
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if r := recover(); r != nil {
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self.Logf("compile FAULT: %v", r)
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}
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}()
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data := ethutil.StringToByteFunc(dataStr, func(s string) (ret []byte) {
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slice := strings.Split(dataStr, "\n")
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for _, dataItem := range slice {
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d := ethutil.FormatData(dataItem)
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ret = append(ret, d...)
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}
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return
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})
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var err error
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script := ethutil.StringToByteFunc(scriptStr, func(s string) (ret []byte) {
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ret, err = ethutil.Compile(s, false)
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return
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})
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if err != nil {
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self.Logln(err)
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return
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}
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self.SetAsm(script)
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var (
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gas = ethutil.Big(gasStr)
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gasPrice = ethutil.Big(gasPriceStr)
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value = ethutil.Big(valueStr)
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// Contract addr as test address
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keyPair = self.lib.eth.KeyManager().KeyPair()
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)
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state := self.lib.eth.StateManager().TransState()
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account := self.lib.eth.StateManager().TransState().GetAccount(keyPair.Address())
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contract := ethchain.NewStateObject([]byte{0})
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contract.Amount = value
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callerClosure := ethchain.NewClosure(account, contract, script, state, gas, gasPrice)
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block := self.lib.eth.BlockChain().CurrentBlock
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vm := ethchain.NewVm(state, self.lib.eth.StateManager(), ethchain.RuntimeVars{
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Block: block,
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Origin: account.Address(),
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BlockNumber: block.Number,
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PrevHash: block.PrevHash,
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Coinbase: block.Coinbase,
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Time: block.Time,
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Diff: block.Difficulty,
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Value: ethutil.Big(valueStr),
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})
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vm.Verbose = true
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vm.Dbg = self.Db
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self.vm = vm
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self.Db.done = false
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self.Logf("callsize %d", len(script))
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go func() {
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ret, g, err := callerClosure.Call(vm, data)
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tot := new(big.Int).Mul(g, gasPrice)
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self.Logf("gas usage %v total price = %v (%v)", g, tot, ethutil.CurrencyToString(tot))
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if err != nil {
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self.Logln("exited with errors:", err)
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} else {
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if len(ret) > 0 {
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self.Logf("exited: % x", ret)
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} else {
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self.Logf("exited: nil")
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}
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}
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state.Reset()
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if !self.Db.interrupt {
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self.Db.done = true
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} else {
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self.Db.interrupt = false
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}
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}()
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}
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func (self *DebuggerWindow) Logf(format string, v ...interface{}) {
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self.win.Root().Call("setLog", fmt.Sprintf(format, v...))
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}
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func (self *DebuggerWindow) Logln(v ...interface{}) {
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str := fmt.Sprintln(v...)
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self.Logf("%s", str[:len(str)-1])
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}
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func (self *DebuggerWindow) Next() {
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self.Db.Next()
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}
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func (self *DebuggerWindow) Continue() {
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self.vm.Stepping = false
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self.Next()
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}
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func (self *DebuggerWindow) ExecCommand(command string) {
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if len(command) > 0 {
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cmd := strings.Split(command, " ")
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switch cmd[0] {
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case "help":
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self.Logln("Debugger commands:")
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self.Logln("break, bp Set breakpoint on instruction")
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self.Logln("clear [log, break, bp] Clears previous set sub-command(s)")
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case "break", "bp":
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if len(cmd) > 1 {
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lineNo, err := strconv.Atoi(cmd[1])
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if err != nil {
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self.Logln(err)
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break
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}
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self.Db.breakPoints = append(self.Db.breakPoints, int64(lineNo))
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self.Logf("break point set on instruction %d", lineNo)
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} else {
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self.Logf("'%s' requires line number", cmd[0])
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}
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case "clear":
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if len(cmd) > 1 {
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switch cmd[1] {
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case "break", "bp":
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self.Db.breakPoints = nil
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self.Logln("Breakpoints cleared")
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case "log":
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self.ClearLog()
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default:
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self.Logf("clear '%s' is not valid", cmd[1])
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}
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} else {
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self.Logln("'clear' requires sub command")
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}
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default:
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self.Logf("Unknown command %s", cmd[0])
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}
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}
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}
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type Debugger struct {
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N chan bool
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Q chan bool
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done, interrupt bool
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breakPoints []int64
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main *DebuggerWindow
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win *qml.Window
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}
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func NewDebugger(main *DebuggerWindow) *Debugger {
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db := &Debugger{make(chan bool), make(chan bool), true, false, nil, main, main.win}
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return db
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}
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type storeVal struct {
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Key, Value string
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}
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func (self *Debugger) BreakHook(pc int, op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack, stateObject *ethchain.StateObject) bool {
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self.main.Logln("break on instr:", pc)
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return self.halting(pc, op, mem, stack, stateObject)
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}
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func (self *Debugger) StepHook(pc int, op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack, stateObject *ethchain.StateObject) bool {
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return self.halting(pc, op, mem, stack, stateObject)
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}
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func (self *Debugger) BreakPoints() []int64 {
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return self.breakPoints
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}
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func (d *Debugger) halting(pc int, op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack, stateObject *ethchain.StateObject) bool {
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d.win.Root().Call("setInstruction", pc)
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d.win.Root().Call("clearMem")
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d.win.Root().Call("clearStack")
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d.win.Root().Call("clearStorage")
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addr := 0
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for i := 0; i+32 <= mem.Len(); i += 32 {
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d.win.Root().Call("setMem", memAddr{fmt.Sprintf("%03d", addr), fmt.Sprintf("% x", mem.Data()[i:i+32])})
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addr++
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}
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for _, val := range stack.Data() {
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d.win.Root().Call("setStack", val.String())
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}
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stateObject.State().EachStorage(func(key string, node *ethutil.Value) {
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d.win.Root().Call("setStorage", storeVal{fmt.Sprintf("% x", key), fmt.Sprintf("% x", node.Str())})
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})
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out:
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for {
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select {
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case <-d.N:
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break out
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case <-d.Q:
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d.interrupt = true
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d.clearBuffers()
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return false
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}
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}
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return true
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}
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func (d *Debugger) clearBuffers() {
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out:
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// drain
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for {
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select {
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case <-d.N:
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case <-d.Q:
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default:
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break out
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}
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}
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}
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func (d *Debugger) Next() {
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if !d.done {
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d.N <- true
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}
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}
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