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// 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"
"strings"
"github.com/ethereum/go-ethereum/core/asm"
cli "gopkg.in/urfave/cli.v1"
)
var disasmCommand = cli.Command{
Action: disasmCmd,
Name: "disasm",
Usage: "disassembles evm binary",
ArgsUsage: "<file>",
}
func disasmCmd(ctx *cli.Context) error {
if len(ctx.Args().First()) == 0 {
return errors.New("filename required")
}
fn := ctx.Args().First()
in, err := ioutil.ReadFile(fn)
if err != nil {
return err
}
code := strings.TrimSpace(string(in[:]))
fmt.Fprintf(ctx.App.Writer, "%v\n", code)
return asm.PrintDisassembled(code)
}
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