-
Notifications
You must be signed in to change notification settings - Fork 112
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
cmd/evm, core/asm: add EVM assembler (#3686)
The evm compile command implements a simple assembly language that compiles to EVM bytecode.
- Loading branch information
Showing
8 changed files
with
852 additions
and
133 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| // Copyright 2017 The go-ethereum Authors | ||
| // This file is part of go-ethereum. | ||
| // | ||
| // go-ethereum is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // go-ethereum 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 General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "io/ioutil" | ||
|
|
||
| "github.com/ethereum/go-ethereum/cmd/evm/internal/compiler" | ||
|
|
||
| cli "gopkg.in/urfave/cli.v1" | ||
| ) | ||
|
|
||
| var compileCommand = cli.Command{ | ||
| Action: compileCmd, | ||
| Name: "compile", | ||
| Usage: "compiles easm source to evm binary", | ||
| ArgsUsage: "<file>", | ||
| } | ||
|
|
||
| func compileCmd(ctx *cli.Context) error { | ||
| debug := ctx.GlobalBool(DebugFlag.Name) | ||
|
|
||
| if len(ctx.Args().First()) == 0 { | ||
| return errors.New("filename required") | ||
| } | ||
|
|
||
| fn := ctx.Args().First() | ||
| src, err := ioutil.ReadFile(fn) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| bin, err := compiler.Compile(fn, src, debug) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| fmt.Println(bin) | ||
| return nil | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| // Copyright 2017 The go-ethereum Authors | ||
| // This file is part of go-ethereum. | ||
| // | ||
| // go-ethereum is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // go-ethereum 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 General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| package compiler | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
|
|
||
| "github.com/ethereum/go-ethereum/core/asm" | ||
| ) | ||
|
|
||
| func Compile(fn string, src []byte, debug bool) (string, error) { | ||
| compiler := asm.NewCompiler(debug) | ||
| compiler.Feed(asm.Lex(fn, src, debug)) | ||
|
|
||
| bin, compileErrors := compiler.Compile() | ||
| if len(compileErrors) > 0 { | ||
| // report errors | ||
| for _, err := range compileErrors { | ||
| fmt.Printf("%s:%v\n", fn, err) | ||
| } | ||
| return "", errors.New("compiling failed") | ||
| } | ||
| return bin, nil | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| // Copyright 2017 The go-ethereum Authors | ||
| // This file is part of go-ethereum. | ||
| // | ||
| // go-ethereum is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // go-ethereum 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 General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "os" | ||
| "time" | ||
|
|
||
| goruntime "runtime" | ||
|
|
||
| "github.com/ethereum/go-ethereum/cmd/utils" | ||
| "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/core/vm/runtime" | ||
| "github.com/ethereum/go-ethereum/ethdb" | ||
| "github.com/ethereum/go-ethereum/log" | ||
| cli "gopkg.in/urfave/cli.v1" | ||
| ) | ||
|
|
||
| var runCommand = cli.Command{ | ||
| Action: runCmd, | ||
| Name: "run", | ||
| Usage: "run arbitrary evm binary", | ||
| ArgsUsage: "<code>", | ||
| Description: `The run command runs arbitrary EVM code.`, | ||
| } | ||
|
|
||
| func runCmd(ctx *cli.Context) error { | ||
| glogger := log.NewGlogHandler(log.StreamHandler(os.Stderr, log.TerminalFormat(false))) | ||
| glogger.Verbosity(log.Lvl(ctx.GlobalInt(VerbosityFlag.Name))) | ||
| log.Root().SetHandler(glogger) | ||
|
|
||
| var ( | ||
| db, _ = ethdb.NewMemDatabase() | ||
| statedb, _ = state.New(common.Hash{}, db) | ||
| sender = common.StringToAddress("sender") | ||
| logger = vm.NewStructLogger(nil) | ||
| tstart = time.Now() | ||
| ) | ||
| statedb.CreateAccount(sender) | ||
|
|
||
| var ( | ||
| code []byte | ||
| ret []byte | ||
| err error | ||
| ) | ||
| if ctx.GlobalString(CodeFlag.Name) != "" { | ||
| code = common.Hex2Bytes(ctx.GlobalString(CodeFlag.Name)) | ||
| } else { | ||
| var hexcode []byte | ||
| if ctx.GlobalString(CodeFileFlag.Name) != "" { | ||
| var err error | ||
| hexcode, err = ioutil.ReadFile(ctx.GlobalString(CodeFileFlag.Name)) | ||
| if err != nil { | ||
| fmt.Printf("Could not load code from file: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
| } else { | ||
| var err error | ||
| hexcode, err = ioutil.ReadAll(os.Stdin) | ||
| if err != nil { | ||
| fmt.Printf("Could not load code from stdin: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
| } | ||
| code = common.Hex2Bytes(string(bytes.TrimRight(hexcode, "\n"))) | ||
| } | ||
|
|
||
| if ctx.GlobalBool(CreateFlag.Name) { | ||
| input := append(code, common.Hex2Bytes(ctx.GlobalString(InputFlag.Name))...) | ||
| ret, _, err = runtime.Create(input, &runtime.Config{ | ||
| Origin: sender, | ||
| State: statedb, | ||
| GasLimit: ctx.GlobalUint64(GasFlag.Name), | ||
| GasPrice: utils.GlobalBig(ctx, PriceFlag.Name), | ||
| Value: utils.GlobalBig(ctx, ValueFlag.Name), | ||
| EVMConfig: vm.Config{ | ||
| Tracer: logger, | ||
| Debug: ctx.GlobalBool(DebugFlag.Name), | ||
| DisableGasMetering: ctx.GlobalBool(DisableGasMeteringFlag.Name), | ||
| }, | ||
| }) | ||
| } else { | ||
| receiver := common.StringToAddress("receiver") | ||
| statedb.SetCode(receiver, code) | ||
|
|
||
| ret, err = runtime.Call(receiver, common.Hex2Bytes(ctx.GlobalString(InputFlag.Name)), &runtime.Config{ | ||
| Origin: sender, | ||
| State: statedb, | ||
| GasLimit: ctx.GlobalUint64(GasFlag.Name), | ||
| GasPrice: utils.GlobalBig(ctx, PriceFlag.Name), | ||
| Value: utils.GlobalBig(ctx, ValueFlag.Name), | ||
| EVMConfig: vm.Config{ | ||
| Tracer: logger, | ||
| Debug: ctx.GlobalBool(DebugFlag.Name), | ||
| DisableGasMetering: ctx.GlobalBool(DisableGasMeteringFlag.Name), | ||
| }, | ||
| }) | ||
| } | ||
| vmdone := time.Since(tstart) | ||
|
|
||
| if ctx.GlobalBool(DumpFlag.Name) { | ||
| statedb.Commit(true) | ||
| fmt.Println(string(statedb.Dump())) | ||
| } | ||
| vm.StdErrFormat(logger.StructLogs()) | ||
|
|
||
| if ctx.GlobalBool(SysStatFlag.Name) { | ||
| var mem goruntime.MemStats | ||
| goruntime.ReadMemStats(&mem) | ||
| fmt.Printf("vm took %v\n", vmdone) | ||
| fmt.Printf(`alloc: %d | ||
| tot alloc: %d | ||
| no. malloc: %d | ||
| heap alloc: %d | ||
| heap objs: %d | ||
| num gc: %d | ||
| `, mem.Alloc, mem.TotalAlloc, mem.Mallocs, mem.HeapAlloc, mem.HeapObjects, mem.NumGC) | ||
| } | ||
|
|
||
| fmt.Printf("OUT: 0x%x", ret) | ||
| if err != nil { | ||
| fmt.Printf(" error: %v", err) | ||
| } | ||
| fmt.Println() | ||
| return nil | ||
| } |
Oops, something went wrong.