Go stack trace

go_stacktrace.go

package main

import (
	"fmt"
	"runtime"
)

func StackTrace(all bool) string {
	// Reserve 10K buffer at first
	buf := make([]byte, 10240)

	for {
		size := runtime.Stack(buf, all)
		// The size of the buffer may be not enough to hold the stacktrace,
		// so double the buffer size
		if size == len(buf) {
			buf = make([]byte, len(buf)<<1)
			continue
		}
		break
	}

	return string(buf)
}

func main() {
	fmt.Println("=== CURRENT GOROUTINE STACKTRACE ===")
	fmt.Println(StackTrace(false))
	fmt.Println("=== ALL GOROUTINES STACKTRACE ===")
	fmt.Println(StackTrace(true))
}