From 5cfae0536f8499634c2fa2eba9a71fec1c0d417b Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Wed, 10 Jun 2015 21:09:12 +0200
Subject: [PATCH] cmd/evm: print trace when running programs

---
 cmd/evm/main.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmd/evm/main.go b/cmd/evm/main.go
index 599721c89e..7c9d27fac9 100644
--- a/cmd/evm/main.go
+++ b/cmd/evm/main.go
@@ -59,6 +59,7 @@ func main() {
 
 	logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.LogLevel(*loglevel)))
 
+	vm.Debug = true
 	db, _ := ethdb.NewMemDatabase()
 	statedb := state.New(common.Hash{}, db)
 	sender := statedb.CreateAccount(common.StringToAddress("sender"))
@@ -80,6 +81,8 @@ func main() {
 		fmt.Println(string(statedb.Dump()))
 	}
 
+	vm.StdErrFormat(vmenv.StructLogs())
+
 	var mem runtime.MemStats
 	runtime.ReadMemStats(&mem)
 	fmt.Printf("vm took %v\n", time.Since(tstart))