op-geth/core/vm_logger.go

41 lines
971 B
Go

package core
import (
"fmt"
"os"
"unicode/utf8"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/vm"
)
func VmStdErrFormat(logs []vm.StructLog) {
fmt.Fprintf(os.Stderr, "VM Stats %d ops\n", len(logs))
for _, log := range logs {
fmt.Fprintf(os.Stderr, "PC %-3d - %-14s\n", log.Pc, log.Op)
fmt.Fprintln(os.Stderr, "STACK =", len(log.Stack))
for i, item := range log.Stack {
fmt.Fprintf(os.Stderr, "%04d: %x\n", i, common.LeftPadBytes(item.Bytes(), 32))
}
const maxMem = 10
addr := 0
fmt.Fprintln(os.Stderr, "MEM =", len(log.Memory))
for i := 0; i+16 <= len(log.Memory) && addr < maxMem; i += 16 {
data := log.Memory[i : i+16]
str := fmt.Sprintf("%04d: % x ", addr*16, data)
for _, r := range data {
if r == 0 {
str += "."
} else if utf8.ValidRune(rune(r)) {
str += fmt.Sprintf("%s", string(r))
} else {
str += "?"
}
}
addr++
fmt.Fprintln(os.Stderr, str)
}
}
}