fmt.Printf("writing %s len %d with root %s\n",fn,len(dat),trieroot)
ioutil.WriteFile(fn,dat,0644)
}
funcmain(){
vartargetint
varprogramPathstring
varevmbool
varbasedirstring
varoutputGoldenbool
varblockNumberint
varrootstring
defaultBasedir:=os.Getenv("BASEDIR")
iflen(defaultBasedir)==0{
defaultBasedir="/tmp/cannon"
}
flag.StringVar(&basedir,"basedir",defaultBasedir,"Directory to read inputs, write outputs, and cache preimage oracle data.")
flag.IntVar(&blockNumber,"blockNumber",-1,"For state transition programs (e.g. rollups), used to create a separate subdirectory in the basedir for each block inputs/outputs and snapshots.")
flag.IntVar(&target,"target",-1,"Target number of instructions to execute in the trace. If < 0 will execute until termination")
flag.StringVar(&programPath,"program","mipigo/minigeth.bin","Path to binary file containing the program to run")
flag.BoolVar(&evm,"evm",false,"If the program should be executed by a MIPS emulator running inside the EVM. This is much much slower than using the Unicorn emulator but exactly replicates the fault proving environment.")
flag.BoolVar(&outputGolden,"outputGolden",false,"Do not read any inputs and instead produce a snapshot of the state prior to execution. Written to <basedir>/golden.json")
